From 5a51f6ddf2cef513d3baee5394285b34f8a2d113 Mon Sep 17 00:00:00 2001 From: Sean Cross Date: Sat, 6 Apr 2024 15:07:54 +0800 Subject: [PATCH] wip commit Signed-off-by: Sean Cross --- .gitattributes | 14 + .gitignore | 6 + .npmignore | 5 + LICENSE | 19 + OUTLINE.md | 85 + README.md | 3 + css/layout.scss | 69 + css/print/paper.scss | 166 + css/print/pdf.scss | 159 + css/reveal.scss | 2109 +++ css/theme/README.md | 21 + css/theme/source/beige.scss | 44 + css/theme/source/black-contrast.scss | 49 + css/theme/source/black.scss | 46 + css/theme/source/blood.scss | 87 + css/theme/source/dracula.scss | 106 + css/theme/source/league.scss | 36 + css/theme/source/moon.scss | 54 + css/theme/source/night.scss | 37 + css/theme/source/serif.scss | 41 + css/theme/source/simple.scss | 43 + css/theme/source/sky.scss | 52 + css/theme/source/solarized.scss | 66 + css/theme/source/white-contrast.scss | 52 + css/theme/source/white.scss | 49 + css/theme/template/exposer.scss | 30 + css/theme/template/mixins.scss | 45 + css/theme/template/settings.scss | 50 + css/theme/template/theme.scss | 331 + demo.html | 481 + dist/reset.css | 30 + dist/reveal.css | 8 + dist/reveal.esm.js | 9 + dist/reveal.esm.js.map | 1 + dist/reveal.js | 9 + dist/reveal.js.map | 1 + dist/theme/beige.css | 366 + dist/theme/black-contrast.css | 362 + dist/theme/black.css | 359 + dist/theme/blood.css | 392 + dist/theme/dracula.css | 385 + dist/theme/fonts/league-gothic/LICENSE | 2 + .../fonts/league-gothic/league-gothic.css | 10 + .../fonts/league-gothic/league-gothic.eot | Bin 0 -> 25696 bytes .../fonts/league-gothic/league-gothic.ttf | Bin 0 -> 64256 bytes .../fonts/league-gothic/league-gothic.woff | Bin 0 -> 30764 bytes dist/theme/fonts/source-sans-pro/LICENSE | 45 + .../source-sans-pro-italic.eot | Bin 0 -> 75720 bytes .../source-sans-pro-italic.ttf | Bin 0 -> 238084 bytes .../source-sans-pro-italic.woff | Bin 0 -> 98556 bytes .../source-sans-pro-regular.eot | Bin 0 -> 88070 bytes 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Bin 0 -> 21991 bytes examples/assets/image2.png | Bin 0 -> 10237 bytes examples/auto-animate.html | 225 + examples/backgrounds.html | 141 + examples/barebones.html | 32 + examples/layout-helpers.html | 160 + examples/markdown.html | 161 + examples/markdown.md | 41 + examples/math.html | 206 + examples/media.html | 75 + examples/multiple-presentations.html | 102 + examples/scroll.html | 118 + examples/transitions.html | 97 + gulpfile.js | 321 + img/betrusted_pvt_blockdiag.png | Bin 0 -> 155447 bytes img/ltc.jpg | Bin 0 -> 908989 bytes img/novena-1068_jpg_md-xl.jpg | Bin 0 -> 82361 bytes img/novena-1089_jpg_project-body.jpg | Bin 0 -> 165183 bytes index.html | 181 + js/components/playback.js | 165 + js/config.js | 330 + js/controllers/autoanimate.js | 640 + js/controllers/backgrounds.js | 439 + js/controllers/controls.js | 266 + js/controllers/focus.js | 103 + js/controllers/fragments.js | 375 + js/controllers/jumptoslide.js | 197 + js/controllers/keyboard.js | 386 + js/controllers/location.js | 247 + js/controllers/notes.js | 126 + js/controllers/overview.js | 255 + js/controllers/plugins.js | 254 + js/controllers/pointer.js | 126 + js/controllers/printview.js | 239 + js/controllers/progress.js | 110 + js/controllers/scrollview.js | 919 ++ js/controllers/slidecontent.js | 486 + js/controllers/slidenumber.js | 139 + js/controllers/touch.js | 263 + js/index.js | 58 + js/reveal.js | 3059 +++++ js/utils/color.js | 77 + js/utils/constants.js | 17 + js/utils/device.js | 8 + js/utils/loader.js | 46 + js/utils/util.js | 313 + package-lock.json | 10781 ++++++++++++++++ package.json | 104 + plugin/highlight/highlight.esm.js | 5 + plugin/highlight/highlight.js | 5 + plugin/highlight/monokai.css | 71 + plugin/highlight/plugin.js | 439 + plugin/highlight/zenburn.css | 80 + plugin/markdown/markdown.esm.js | 7 + plugin/markdown/markdown.js | 7 + plugin/markdown/plugin.js | 491 + plugin/math/katex.js | 96 + plugin/math/math.esm.js | 6 + plugin/math/math.js | 1 + plugin/math/mathjax2.js | 89 + plugin/math/mathjax3.js | 77 + plugin/math/plugin.js | 15 + plugin/notes/notes.esm.js | 1 + plugin/notes/notes.js | 1 + plugin/notes/plugin.js | 265 + plugin/notes/speaker-view.html | 898 ++ plugin/search/plugin.js | 243 + plugin/search/search.esm.js | 7 + plugin/search/search.js | 7 + plugin/zoom/plugin.js | 264 + plugin/zoom/zoom.esm.js | 11 + plugin/zoom/zoom.js | 11 + test/assets/external-script-a.js | 1 + test/assets/external-script-b.js | 1 + test/assets/external-script-c.js | 1 + test/assets/external-script-d.js | 1 + test/simple.md | 12 + test/test-auto-animate.html | 167 + test/test-dependencies-async.html | 78 + test/test-dependencies.html | 55 + test/test-grid-navigation.html | 75 + test/test-iframe-backgrounds.html | 100 + test/test-iframes.html | 104 + test/test-markdown.html | 516 + test/test-multiple-instances-es5.html | 86 + test/test-multiple-instances.html | 104 + test/test-pdf.html | 97 + test/test-plugins.html | 108 + test/test-scroll.html | 115 + test/test-state.html | 134 + test/test.html | 900 ++ 164 files changed, 38670 insertions(+) create mode 100644 .gitattributes create mode 100644 .gitignore create mode 100644 .npmignore create mode 100644 LICENSE create mode 100644 OUTLINE.md create mode 100644 README.md create mode 100644 css/layout.scss create mode 100644 css/print/paper.scss create mode 100644 css/print/pdf.scss create mode 100644 css/reveal.scss create mode 100644 css/theme/README.md create mode 100644 css/theme/source/beige.scss create mode 100644 css/theme/source/black-contrast.scss create mode 100644 css/theme/source/black.scss create mode 100644 css/theme/source/blood.scss create mode 100644 css/theme/source/dracula.scss create mode 100644 css/theme/source/league.scss create mode 100644 css/theme/source/moon.scss create mode 100644 css/theme/source/night.scss create mode 100644 css/theme/source/serif.scss create mode 100644 css/theme/source/simple.scss create mode 100644 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mode 100644 examples/auto-animate.html create mode 100644 examples/backgrounds.html create mode 100644 examples/barebones.html create mode 100644 examples/layout-helpers.html create mode 100644 examples/markdown.html create mode 100644 examples/markdown.md create mode 100644 examples/math.html create mode 100644 examples/media.html create mode 100644 examples/multiple-presentations.html create mode 100644 examples/scroll.html create mode 100644 examples/transitions.html create mode 100644 gulpfile.js create mode 100644 img/betrusted_pvt_blockdiag.png create mode 100644 img/ltc.jpg create mode 100644 img/novena-1068_jpg_md-xl.jpg create mode 100644 img/novena-1089_jpg_project-body.jpg create mode 100644 index.html create mode 100644 js/components/playback.js create mode 100644 js/config.js create mode 100644 js/controllers/autoanimate.js create mode 100644 js/controllers/backgrounds.js create mode 100644 js/controllers/controls.js create mode 100644 js/controllers/focus.js create mode 100644 js/controllers/fragments.js create mode 100644 js/controllers/jumptoslide.js create mode 100644 js/controllers/keyboard.js create mode 100644 js/controllers/location.js create mode 100644 js/controllers/notes.js create mode 100644 js/controllers/overview.js create mode 100644 js/controllers/plugins.js create mode 100644 js/controllers/pointer.js create mode 100644 js/controllers/printview.js create mode 100644 js/controllers/progress.js create mode 100644 js/controllers/scrollview.js create mode 100644 js/controllers/slidecontent.js create mode 100644 js/controllers/slidenumber.js create mode 100644 js/controllers/touch.js create mode 100644 js/index.js create mode 100644 js/reveal.js create mode 100644 js/utils/color.js create mode 100644 js/utils/constants.js create mode 100644 js/utils/device.js create mode 100644 js/utils/loader.js create mode 100644 js/utils/util.js create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 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plugin/zoom/zoom.esm.js create mode 100644 plugin/zoom/zoom.js create mode 100644 test/assets/external-script-a.js create mode 100644 test/assets/external-script-b.js create mode 100644 test/assets/external-script-c.js create mode 100644 test/assets/external-script-d.js create mode 100644 test/simple.md create mode 100644 test/test-auto-animate.html create mode 100644 test/test-dependencies-async.html create mode 100644 test/test-dependencies.html create mode 100644 test/test-grid-navigation.html create mode 100644 test/test-iframe-backgrounds.html create mode 100644 test/test-iframes.html create mode 100644 test/test-markdown.html create mode 100644 test/test-multiple-instances-es5.html create mode 100644 test/test-multiple-instances.html create mode 100644 test/test-pdf.html create mode 100644 test/test-plugins.html create mode 100644 test/test-scroll.html create mode 100644 test/test-state.html create mode 100644 test/test.html diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..f25ea75 --- /dev/null +++ b/.gitattributes @@ -0,0 +1,14 @@ +# Web Stuff +*.html text eol=lf +*.js text eol=lf +*.css text eol=lf +*.js.map text eol=lf + +# Text +*.md text eol=lf +LICENSE text eol=lf + +# Font files +*.eot binary +*.ttf binary +*.woff binary diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b522254 --- /dev/null +++ b/.gitignore @@ -0,0 +1,6 @@ +*.csproj +*.sln +obj/ +bin/ +mono_crash* +*.DS_Store \ No newline at end of file diff --git a/.npmignore b/.npmignore new file mode 100644 index 0000000..362d612 --- /dev/null +++ b/.npmignore @@ -0,0 +1,5 @@ +/test +/examples +.github +.sass-cache +gulpfile.js diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..38ff0eb --- /dev/null +++ b/LICENSE @@ -0,0 +1,19 @@ +Copyright (C) 2011-2024 Hakim El Hattab, http://hakim.se, and reveal.js contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. \ No newline at end of file diff --git a/OUTLINE.md b/OUTLINE.md new file mode 100644 index 0000000..498b1ec --- /dev/null +++ b/OUTLINE.md @@ -0,0 +1,85 @@ +# Notes for the talk's outline + +## About Me + +* Based in Singapore +* Hardware and software + +## Outline + +1. Project History +2. Why a new OS? +3. What can it do? + +## Project History + +### Novena: A really open laptop + +We always wanted to make a laptop. Decided to give it a shot to see what happened. + +The processor in this was "relatively large" -- ARM Cortex A9 + +Ran Linux + +### Chibitronics: Programming for 8-year-olds + +This had a "relatively small" processor -- ARM Cortex M0 with 4 kB RAM and 32 kB flash + +We got to know this chip really well + +* Bit-banged USB +* AFSK demodulation +* https://ltc.chibitronics.com/ + +Ran ChibiOS and a very custom program + +### Precursor: Secure communications device + +* FPGA-based (any processor you want!) +* 16 MB RAM +* 128 MB storage + +## Why a new OS? + +Two major markets: + +* MCU + * No MMU, maybe an MPU + * <= 1 MB RAM + * <= 4 MB storage +* CPU + * MMU designed for multiple processes + * >= 64 MB RAM + * >= 256 MB storage (external) + +## What can it do? + +* Kernel is 17 ksloc + * 6k of that is a RISC-V disassembler for optional GDB support +* Threads +* Processes +* Tier 2 Rust support + * libstd +* Entire project built on *stable* Rust + +## Other features + +* Fully Rust +* Microkernel +* Stable channel +* Requires an MMU +* Interrupts in userspace +* Each page of memory is mapped once + +## Xous Organization + +* Kernel is single-threaded +* Services use well-defined API calls +* All drivers provided in user space +* Each page of memory can only be lent once + +## How can I use it? + +* Talk to system vendors -- get them to include MMUs! +* Emulation is easiest -- Renode support + diff --git a/README.md b/README.md new file mode 100644 index 0000000..17f8eff --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# Xous Background Talk 2024 + +Designed using Reveal.js. To view the slides, open `index.html` in a web browser. diff --git a/css/layout.scss b/css/layout.scss new file mode 100644 index 0000000..f499fdd --- /dev/null +++ b/css/layout.scss @@ -0,0 +1,69 @@ +/** + * Layout helpers. + */ + +// Stretch an element vertically based on available space +.reveal .stretch, +.reveal .r-stretch { + max-width: none; + max-height: none; +} + +.reveal pre.stretch code, +.reveal pre.r-stretch code { + height: 100%; + max-height: 100%; + box-sizing: border-box; +} + +// Text that auto-fits its container +.reveal .r-fit-text { + display: inline-block; // https://github.com/rikschennink/fitty#performance + white-space: nowrap; +} + +// Stack multiple elements on top of each other +.reveal .r-stack { + display: grid; +} + +.reveal .r-stack > * { + grid-area: 1/1; + margin: auto; +} + +// Horizontal and vertical stacks +.reveal .r-vstack, +.reveal .r-hstack { + display: flex; + + img, video { + min-width: 0; + min-height: 0; + object-fit: contain; + } +} + +.reveal .r-vstack { + flex-direction: column; + align-items: center; + justify-content: center; +} + +.reveal .r-hstack { + flex-direction: row; + align-items: center; + justify-content: center; +} + +// Naming based on tailwindcss +.reveal .items-stretch { align-items: stretch; } +.reveal .items-start { align-items: flex-start; } +.reveal .items-center { align-items: center; } +.reveal .items-end { align-items: flex-end; } + +.reveal .justify-between { justify-content: space-between; } +.reveal .justify-around { justify-content: space-around; } +.reveal .justify-start { justify-content: flex-start; } +.reveal .justify-center { justify-content: center; } +.reveal .justify-end { justify-content: flex-end; } diff --git a/css/print/paper.scss b/css/print/paper.scss new file mode 100644 index 0000000..32fab8a --- /dev/null +++ b/css/print/paper.scss @@ -0,0 +1,166 @@ + +@media print { + html:not(.print-pdf) { + overflow: visible; + width: auto; + height: auto; + + body { + margin: 0; + padding: 0; + overflow: visible; + } + } + + html:not(.print-pdf) .reveal { + background: #fff; + font-size: 20pt; + + .controls, + .state-background, + .progress, + .backgrounds, + .slide-number { + display: none !important; + } + + p, td, li { + font-size: 20pt!important; + color: #000; + } + + h1,h2,h3,h4,h5,h6 { + color: #000!important; + height: auto; + line-height: normal; + text-align: left; + letter-spacing: normal; + } + + h1 { font-size: 28pt !important; } + h2 { font-size: 24pt !important; } + h3 { font-size: 22pt !important; } + h4 { font-size: 22pt !important; font-variant: small-caps; } + h5 { font-size: 21pt !important; } + h6 { font-size: 20pt !important; font-style: italic; } + + a:link, + a:visited { + color: #000 !important; + font-weight: bold; + text-decoration: underline; + } + + ul, ol, div, p { + visibility: visible; + position: static; + width: auto; + height: auto; + display: block; + overflow: visible; + margin: 0; + text-align: left !important; + } + pre, + table { + margin-left: 0; + margin-right: 0; + } + pre code { + padding: 20px; + } + blockquote { + margin: 20px 0; 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+ } + .slides section:last-of-type { + page-break-after: avoid !important; + } + .slides section .fragment { + opacity: 1 !important; + visibility: visible !important; + + transform: none !important; + } + + .r-fit-text { + white-space: normal !important; + } + + section img { + display: block; + margin: 15px 0px; + background: rgba(255,255,255,1); + border: 1px solid #666; + box-shadow: none; + } + + section small { + font-size: 0.8em; + } + + .hljs { + max-height: 100%; + white-space: pre-wrap; + word-wrap: break-word; + word-break: break-word; + font-size: 15pt; + } + + .hljs .hljs-ln-numbers { + white-space: nowrap; + } + + .hljs td { + font-size: inherit !important; + color: inherit !important; + } + } +} diff --git a/css/print/pdf.scss b/css/print/pdf.scss new file mode 100644 index 0000000..0a1c2bf --- /dev/null +++ b/css/print/pdf.scss @@ -0,0 +1,159 @@ +/** + * This stylesheet is used to print reveal.js + * presentations to PDF. + * + * https://revealjs.com/pdf-export/ + */ + +html.reveal-print { + * { + -webkit-print-color-adjust: exact; + } + + & { + width: 100%; + height: 100%; + overflow: visible; + } + + body { + margin: 0 auto !important; + border: 0; + padding: 0; + float: none !important; + overflow: visible; + } + + /* Remove any elements not needed in print. */ + .nestedarrow, + .reveal .controls, + .reveal .progress, + .reveal .playback, + .reveal.overview, + .state-background { + display: none !important; + } + + .reveal pre code { + overflow: hidden !important; + } + + .reveal { + width: auto !important; + height: auto !important; + overflow: hidden !important; + } + .reveal .slides { + position: static; + width: 100% !important; + height: auto !important; + zoom: 1 !important; + pointer-events: initial; + + left: auto; + top: auto; + margin: 0 !important; + padding: 0 !important; + + overflow: visible; + display: block; + + perspective: none; + perspective-origin: 50% 50%; + } + + .reveal .slides .pdf-page { + position: relative; + overflow: hidden; + z-index: 1; + + page-break-after: always; + } + + .reveal .slides .pdf-page:last-of-type { + page-break-after: avoid; + } + + .reveal .slides section { + visibility: visible !important; + display: block !important; + position: absolute !important; + + margin: 0 !important; + padding: 0 !important; + box-sizing: border-box !important; + min-height: 1px; + + opacity: 1 !important; + + transform-style: flat !important; + transform: none !important; + } + + .reveal section.stack { + position: relative !important; + margin: 0 !important; + padding: 0 !important; + page-break-after: avoid !important; + height: auto !important; + min-height: auto !important; + } + + .reveal img { + box-shadow: none; + } + + /* Slide backgrounds are placed inside of their slide when exporting to PDF */ + .reveal .backgrounds { + display: none; + } + .reveal .slide-background { + display: block !important; + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + z-index: auto !important; + } + + /* Display slide speaker notes when 'showNotes' is enabled */ + .reveal.show-notes { + max-width: none; + max-height: none; + } + .reveal .speaker-notes-pdf { + display: block; + width: 100%; + height: auto; + max-height: none; + top: auto; + right: auto; + bottom: auto; + left: auto; + z-index: 100; + } + + /* Layout option which makes notes appear on a separate page */ + .reveal .speaker-notes-pdf[data-layout="separate-page"] { + position: relative; + color: inherit; + background-color: transparent; + padding: 20px; + page-break-after: always; + border: 0; + } + + /* Display slide numbers when 'slideNumber' is enabled */ + .reveal .slide-number-pdf { + display: block; + position: absolute; + font-size: 14px; + visibility: visible; + } + + /* This accessibility tool is not useful in PDF and breaks it visually */ + .aria-status { + display: none; + } +} diff --git a/css/reveal.scss b/css/reveal.scss new file mode 100644 index 0000000..0a3ade7 --- /dev/null +++ b/css/reveal.scss @@ -0,0 +1,2109 @@ +@use "sass:math"; + +/** + * reveal.js + * http://revealjs.com + * MIT licensed + * + * Copyright (C) Hakim El Hattab, https://hakim.se + */ + +@import 'layout'; + +/********************************************* + * GLOBAL STYLES + *********************************************/ + +html.reveal-full-page { + width: 100%; + height: 100%; + height: 100vh; + height: calc( var(--vh, 1vh) * 100 ); + height: 100svh; + overflow: hidden; +} + +.reveal-viewport { + height: 100%; + overflow: hidden; + position: relative; + line-height: 1; + margin: 0; + + background-color: #fff; + color: #000; + + --r-controls-spacing: 12px; +} + +// Force the presentation to cover the full viewport when we +// enter fullscreen mode. Fixes sizing issues in Safari. +.reveal-viewport:fullscreen { + top: 0 !important; + left: 0 !important; + width: 100% !important; + height: 100% !important; + transform: none !important; +} + + +/********************************************* + * VIEW FRAGMENTS + *********************************************/ + +.reveal .fragment { + transition: all .2s ease; + + &:not(.custom) { + opacity: 0; + visibility: hidden; + will-change: opacity; + } + + &.visible { + opacity: 1; + visibility: inherit; + } + + &.disabled { + transition: none; + } +} + +.reveal .fragment.grow { + opacity: 1; + visibility: inherit; + + &.visible { + transform: scale( 1.3 ); + } +} + +.reveal .fragment.shrink { + opacity: 1; + visibility: inherit; + + &.visible { + transform: scale( 0.7 ); + } +} + +.reveal .fragment.zoom-in { + transform: scale( 0.1 ); + + &.visible { + transform: none; + } +} + +.reveal .fragment.fade-out { + opacity: 1; + visibility: inherit; + + &.visible { + opacity: 0; + visibility: hidden; + } +} + +.reveal .fragment.semi-fade-out { + opacity: 1; + visibility: inherit; + + &.visible { + opacity: 0.5; + visibility: inherit; + } +} + +.reveal .fragment.strike { + opacity: 1; + visibility: inherit; + + &.visible { + text-decoration: line-through; + } +} + +.reveal .fragment.fade-up { + transform: translate(0, 40px); + + &.visible { + transform: translate(0, 0); + } +} + +.reveal .fragment.fade-down { + transform: translate(0, -40px); + + &.visible { + transform: translate(0, 0); + } +} + +.reveal .fragment.fade-right { + transform: translate(-40px, 0); + + &.visible { + transform: translate(0, 0); + } +} + +.reveal .fragment.fade-left { + transform: translate(40px, 0); + + &.visible { + transform: translate(0, 0); + } +} + +.reveal .fragment.fade-in-then-out, +.reveal .fragment.current-visible { + opacity: 0; + visibility: hidden; + + &.current-fragment { + opacity: 1; + visibility: inherit; + } +} + +.reveal .fragment.fade-in-then-semi-out { + opacity: 0; + visibility: hidden; + + &.visible { + opacity: 0.5; + visibility: inherit; + } + + &.current-fragment { + opacity: 1; + visibility: inherit; + } +} + +.reveal .fragment.highlight-red, +.reveal .fragment.highlight-current-red, +.reveal .fragment.highlight-green, +.reveal .fragment.highlight-current-green, +.reveal .fragment.highlight-blue, +.reveal .fragment.highlight-current-blue { + opacity: 1; + visibility: inherit; +} + .reveal .fragment.highlight-red.visible { + color: #ff2c2d + } + .reveal .fragment.highlight-green.visible { + color: #17ff2e; + } + .reveal .fragment.highlight-blue.visible { + color: #1b91ff; + } + +.reveal .fragment.highlight-current-red.current-fragment { + color: #ff2c2d +} +.reveal .fragment.highlight-current-green.current-fragment { + color: #17ff2e; +} +.reveal .fragment.highlight-current-blue.current-fragment { + color: #1b91ff; +} + + +/********************************************* + * DEFAULT ELEMENT STYLES + *********************************************/ + +/* Fixes issue in Chrome where italic fonts did not appear when printing to PDF */ +.reveal:after { + content: ''; + font-style: italic; +} + +.reveal iframe { + z-index: 1; +} + +/** Prevents layering issues in certain browser/transition combinations */ +.reveal a { + position: relative; +} + + +/********************************************* + * CONTROLS + *********************************************/ + +@keyframes bounce-right { + 0%, 10%, 25%, 40%, 50% {transform: translateX(0);} + 20% {transform: translateX(10px);} + 30% {transform: translateX(-5px);} +} + +@keyframes bounce-left { + 0%, 10%, 25%, 40%, 50% {transform: translateX(0);} + 20% {transform: translateX(-10px);} + 30% {transform: translateX(5px);} +} + +@keyframes bounce-down { + 0%, 10%, 25%, 40%, 50% {transform: translateY(0);} + 20% {transform: translateY(10px);} + 30% {transform: translateY(-5px);} +} + +$controlArrowSize: 3.6em; +$controlArrowSpacing: 1.4em; +$controlArrowLength: 2.6em; +$controlArrowThickness: 0.5em; +$controlsArrowAngle: 45deg; +$controlsArrowAngleHover: 40deg; +$controlsArrowAngleActive: 36deg; + +@mixin controlsArrowTransform( $angle ) { + &:before { + transform: translateX(($controlArrowSize - $controlArrowLength)*0.5) translateY(($controlArrowSize - $controlArrowThickness)*0.5) rotate( $angle ); + } + + &:after { + transform: translateX(($controlArrowSize - $controlArrowLength)*0.5) translateY(($controlArrowSize - $controlArrowThickness)*0.5) rotate( -$angle ); + } +} + +.reveal .controls { + display: none; + position: absolute; + top: auto; + bottom: var(--r-controls-spacing); + right: var(--r-controls-spacing); + left: auto; + z-index: 11; + color: #000; + pointer-events: none; + font-size: 10px; + + button { + position: absolute; + padding: 0; + background-color: transparent; + border: 0; + outline: 0; + cursor: pointer; + color: currentColor; + transform: scale(.9999); + transition: color 0.2s ease, + opacity 0.2s ease, + transform 0.2s ease; + z-index: 2; // above slides + pointer-events: auto; + font-size: inherit; + + visibility: hidden; + opacity: 0; + + -webkit-appearance: none; + -webkit-tap-highlight-color: rgba( 0, 0, 0, 0 ); + } + + .controls-arrow:before, + .controls-arrow:after { + content: ''; + position: absolute; + top: 0; + left: 0; + width: $controlArrowLength; + height: $controlArrowThickness; + border-radius: $controlArrowThickness*0.5; + background-color: currentColor; + + transition: all 0.15s ease, background-color 0.8s ease; + transform-origin: math.div(floor(($controlArrowThickness*0.5)*10), 10) 50%; + will-change: transform; + } + + .controls-arrow { + position: relative; + width: $controlArrowSize; + height: $controlArrowSize; + + @include controlsArrowTransform( $controlsArrowAngle ); + + &:hover { + @include controlsArrowTransform( $controlsArrowAngleHover ); + } + + &:active { + @include controlsArrowTransform( $controlsArrowAngleActive ); + } + } + + .navigate-left { + right: $controlArrowSize + $controlArrowSpacing*2; + bottom: $controlArrowSpacing + $controlArrowSize*0.5; + transform: translateX( -10px ); + + &.highlight { + animation: bounce-left 2s 50 both ease-out; + } + } + + .navigate-right { + right: 0; + bottom: $controlArrowSpacing + $controlArrowSize*0.5; + transform: translateX( 10px ); + + .controls-arrow { + transform: rotate( 180deg ); + } + + &.highlight { + animation: bounce-right 2s 50 both ease-out; + } + } + + .navigate-up { + right: $controlArrowSpacing + $controlArrowSize*0.5; + bottom: $controlArrowSpacing*2 + $controlArrowSize; + transform: translateY( -10px ); + + .controls-arrow { + transform: rotate( 90deg ); + } + } + + .navigate-down { + right: $controlArrowSpacing + $controlArrowSize*0.5; + bottom: -$controlArrowSpacing; + padding-bottom: $controlArrowSpacing; + transform: translateY( 10px ); + + .controls-arrow { + transform: rotate( -90deg ); + } + + &.highlight { + animation: bounce-down 2s 50 both ease-out; + } + } + + // Back arrow style: "faded": + // Deemphasize backwards navigation arrows in favor of drawing + // attention to forwards navigation + &[data-controls-back-arrows="faded"] .navigate-up.enabled { + opacity: 0.3; + + &:hover { + opacity: 1; + } + } + + // Back arrow style: "hidden": + // Never show arrows for backwards navigation + &[data-controls-back-arrows="hidden"] .navigate-up.enabled { + opacity: 0; + visibility: hidden; + } + + // Any control button that can be clicked is "enabled" + .enabled { + visibility: visible; + opacity: 0.9; + cursor: pointer; + transform: none; + } + + // Any control button that leads to showing or hiding + // a fragment + .enabled.fragmented { + opacity: 0.5; + } + + .enabled:hover, + .enabled.fragmented:hover { + opacity: 1; + } +} + +.reveal:not(.rtl) .controls { + // Back arrow style: "faded": + // Deemphasize left arrow + &[data-controls-back-arrows="faded"] .navigate-left.enabled { + opacity: 0.3; + + &:hover { + opacity: 1; + } + } + + // Back arrow style: "hidden": + // Never show left arrow + &[data-controls-back-arrows="hidden"] .navigate-left.enabled { + opacity: 0; + visibility: hidden; + } +} + +.reveal.rtl .controls { + // Back arrow style: "faded": + // Deemphasize right arrow in RTL mode + &[data-controls-back-arrows="faded"] .navigate-right.enabled { + opacity: 0.3; + + &:hover { + opacity: 1; + } + } + + // Back arrow style: "hidden": + // Never show right arrow in RTL mode + &[data-controls-back-arrows="hidden"] .navigate-right.enabled { + opacity: 0; + visibility: hidden; + } +} + +.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-up, +.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-down { + display: none; +} + +// Adjust the layout when there are no vertical slides +.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-left, +.reveal:not(.has-vertical-slides) .controls .navigate-left { + bottom: $controlArrowSpacing; + right: 0.5em + $controlArrowSpacing + $controlArrowSize; +} + +.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-right, +.reveal:not(.has-vertical-slides) .controls .navigate-right { + bottom: $controlArrowSpacing; + right: 0.5em; +} + +// Adjust the layout when there are no horizontal slides +.reveal:not(.has-horizontal-slides) .controls .navigate-up { + right: $controlArrowSpacing; + bottom: $controlArrowSpacing + $controlArrowSize; +} +.reveal:not(.has-horizontal-slides) .controls .navigate-down { + right: $controlArrowSpacing; + bottom: 0.5em; +} + +// Invert arrows based on background color +.reveal.has-dark-background .controls { + color: #fff; +} +.reveal.has-light-background .controls { + color: #000; +} + +// Disable active states on touch devices +.reveal.no-hover .controls .controls-arrow:hover, +.reveal.no-hover .controls .controls-arrow:active { + @include controlsArrowTransform( $controlsArrowAngle ); +} + +// Edge aligned controls layout +@media screen and (min-width: 500px) { + + .reveal-viewport { + --r-controls-spacing: 0.8em; + } + + .reveal .controls[data-controls-layout="edges"] { + & { + top: 0; + right: 0; + bottom: 0; + left: 0; + } + + .navigate-left, + .navigate-right, + .navigate-up, + .navigate-down { + bottom: auto; + right: auto; + } + + .navigate-left { + top: 50%; + left: var(--r-controls-spacing); + margin-top: -$controlArrowSize*0.5; + } + + .navigate-right { + top: 50%; + right: var(--r-controls-spacing); + margin-top: -$controlArrowSize*0.5; + } + + .navigate-up { + top: var(--r-controls-spacing); + left: 50%; + margin-left: -$controlArrowSize*0.5; + } + + .navigate-down { + bottom: calc(var(--r-controls-spacing) - #{$controlArrowSpacing} + 0.3em); + left: 50%; + margin-left: -$controlArrowSize*0.5; + } + } + +} + + +/********************************************* + * PROGRESS BAR + *********************************************/ + +.reveal .progress { + position: absolute; + display: none; + height: 3px; + width: 100%; + bottom: 0; + left: 0; + z-index: 10; + + background-color: rgba( 0, 0, 0, 0.2 ); + color: #fff; +} + .reveal .progress:after { + content: ''; + display: block; + position: absolute; + height: 10px; + width: 100%; + top: -10px; + } + .reveal .progress span { + display: block; + height: 100%; + width: 100%; + + background-color: currentColor; + transition: transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985); + transform-origin: 0 0; + transform: scaleX(0); + } + +/********************************************* + * SLIDE NUMBER + *********************************************/ + +.reveal .slide-number { + position: absolute; + display: block; + right: 8px; + bottom: 8px; + z-index: 31; + font-family: Helvetica, sans-serif; + font-size: 12px; + line-height: 1; + color: #fff; + background-color: rgba( 0, 0, 0, 0.4 ); + padding: 5px; +} + +.reveal .slide-number a { + color: currentColor; +} + +.reveal .slide-number-delimiter { + margin: 0 3px; +} + +/********************************************* + * SLIDES + *********************************************/ + +.reveal { + position: relative; + width: 100%; + height: 100%; + overflow: hidden; + touch-action: pinch-zoom; +} + +// Swiping on an embedded deck should not block page scrolling +.reveal.embedded { + touch-action: pan-y; +} + +.reveal .slides { + position: absolute; + width: 100%; + height: 100%; + top: 0; + right: 0; + bottom: 0; + left: 0; + margin: auto; + pointer-events: none; + + overflow: visible; + z-index: 1; + text-align: center; + perspective: 600px; + perspective-origin: 50% 40%; +} + +.reveal .slides>section { + perspective: 600px; +} + +.reveal .slides>section, +.reveal .slides>section>section { + display: none; + position: absolute; + width: 100%; + pointer-events: auto; + + z-index: 10; + transform-style: flat; + transition: transform-origin 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985), + transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985), + visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985), + opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985); +} + +/* Global transition speed settings */ +.reveal[data-transition-speed="fast"] .slides section { + transition-duration: 400ms; +} +.reveal[data-transition-speed="slow"] .slides section { + transition-duration: 1200ms; +} + +/* Slide-specific transition speed overrides */ +.reveal .slides section[data-transition-speed="fast"] { + transition-duration: 400ms; +} +.reveal .slides section[data-transition-speed="slow"] { + transition-duration: 1200ms; +} + +.reveal .slides>section.stack { + padding-top: 0; + padding-bottom: 0; + pointer-events: none; + height: 100%; +} + +.reveal .slides>section.present, +.reveal .slides>section>section.present { + display: block; + z-index: 11; + opacity: 1; +} + +.reveal .slides>section:empty, +.reveal .slides>section>section:empty, +.reveal .slides>section[data-background-interactive], +.reveal .slides>section>section[data-background-interactive] { + pointer-events: none; +} + +.reveal.center, +.reveal.center .slides, +.reveal.center .slides section { + min-height: 0 !important; +} + +/* Don't allow interaction with invisible slides */ +.reveal .slides>section:not(.present), +.reveal .slides>section>section:not(.present) { + pointer-events: none; +} + +.reveal.overview .slides>section, +.reveal.overview .slides>section>section { + pointer-events: auto; +} + +.reveal .slides>section.past, +.reveal .slides>section.future, +.reveal .slides>section.past>section, +.reveal .slides>section.future>section, +.reveal .slides>section>section.past, +.reveal .slides>section>section.future { + opacity: 0; +} + + +/********************************************* + * Mixins for readability of transitions + *********************************************/ + +@mixin transition-global($style) { + .reveal .slides section[data-transition=#{$style}], + .reveal.#{$style} .slides section:not([data-transition]) { + @content; + } +} +@mixin transition-stack($style) { + .reveal .slides section[data-transition=#{$style}].stack, + .reveal.#{$style} .slides section.stack { + @content; + } +} +@mixin transition-horizontal-past($style) { + .reveal .slides>section[data-transition=#{$style}].past, + .reveal .slides>section[data-transition~=#{$style}-out].past, + .reveal.#{$style} .slides>section:not([data-transition]).past { + @content; + } +} +@mixin transition-horizontal-future($style) { + .reveal .slides>section[data-transition=#{$style}].future, + .reveal .slides>section[data-transition~=#{$style}-in].future, + .reveal.#{$style} .slides>section:not([data-transition]).future { + @content; + } +} + +@mixin transition-vertical-past($style) { + .reveal .slides>section>section[data-transition=#{$style}].past, + .reveal .slides>section>section[data-transition~=#{$style}-out].past, + .reveal.#{$style} .slides>section>section:not([data-transition]).past { + @content; + } +} +@mixin transition-vertical-future($style) { + .reveal .slides>section>section[data-transition=#{$style}].future, + .reveal .slides>section>section[data-transition~=#{$style}-in].future, + .reveal.#{$style} .slides>section>section:not([data-transition]).future { + @content; + } +} + +/********************************************* + * SLIDE TRANSITION + * Aliased 'linear' for backwards compatibility + *********************************************/ + +@each $stylename in slide, linear { + @include transition-horizontal-past(#{$stylename}) { + transform: translate(-150%, 0); + } + @include transition-horizontal-future(#{$stylename}) { + transform: translate(150%, 0); + } + @include transition-vertical-past(#{$stylename}) { + transform: translate(0, -150%); + } + @include transition-vertical-future(#{$stylename}) { + transform: translate(0, 150%); + } +} + +/********************************************* + * CONVEX TRANSITION + * Aliased 'default' for backwards compatibility + *********************************************/ + +@each $stylename in default, convex { + @include transition-stack(#{$stylename}) { + transform-style: preserve-3d; + } + + @include transition-horizontal-past(#{$stylename}) { + transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); + } + @include transition-horizontal-future(#{$stylename}) { + transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); + } + @include transition-vertical-past(#{$stylename}) { + transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); + } + @include transition-vertical-future(#{$stylename}) { + transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); + } +} + +/********************************************* + * CONCAVE TRANSITION + *********************************************/ + +@include transition-stack(concave) { + transform-style: preserve-3d; +} + +@include transition-horizontal-past(concave) { + transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); +} +@include transition-horizontal-future(concave) { + transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); +} +@include transition-vertical-past(concave) { + transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0); +} +@include transition-vertical-future(concave) { + transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0); +} + + +/********************************************* + * ZOOM TRANSITION + *********************************************/ + +@include transition-global(zoom) { + transition-timing-function: ease; +} +@include transition-horizontal-past(zoom) { + visibility: hidden; + transform: scale(16); +} +@include transition-horizontal-future(zoom) { + visibility: hidden; + transform: scale(0.2); +} +@include transition-vertical-past(zoom) { + transform: scale(16); +} +@include transition-vertical-future(zoom) { + transform: scale(0.2); +} + + +/********************************************* + * CUBE TRANSITION + * + * WARNING: + * this is deprecated and will be removed in a + * future version. + *********************************************/ + +.reveal.cube .slides { + perspective: 1300px; +} + +.reveal.cube .slides section { + padding: 30px; + min-height: 700px; + backface-visibility: hidden; + box-sizing: border-box; + transform-style: preserve-3d; +} + .reveal.center.cube .slides section { + min-height: 0; + } + .reveal.cube .slides section:not(.stack):before { + content: ''; + position: absolute; + display: block; + width: 100%; + height: 100%; + left: 0; + top: 0; + background: rgba(0,0,0,0.1); + border-radius: 4px; + transform: translateZ( -20px ); + } + .reveal.cube .slides section:not(.stack):after { + content: ''; + position: absolute; + display: block; + width: 90%; + height: 30px; + left: 5%; + bottom: 0; + background: none; + z-index: 1; + + border-radius: 4px; + box-shadow: 0px 95px 25px rgba(0,0,0,0.2); + transform: translateZ(-90px) rotateX( 65deg ); + } + +.reveal.cube .slides>section.stack { + padding: 0; + background: none; +} + +.reveal.cube .slides>section.past { + transform-origin: 100% 0%; + transform: translate3d(-100%, 0, 0) rotateY(-90deg); +} + +.reveal.cube .slides>section.future { + transform-origin: 0% 0%; + transform: translate3d(100%, 0, 0) rotateY(90deg); +} + +.reveal.cube .slides>section>section.past { + transform-origin: 0% 100%; + transform: translate3d(0, -100%, 0) rotateX(90deg); +} + +.reveal.cube .slides>section>section.future { + transform-origin: 0% 0%; + transform: translate3d(0, 100%, 0) rotateX(-90deg); +} + + +/********************************************* + * PAGE TRANSITION + * + * WARNING: + * this is deprecated and will be removed in a + * future version. + *********************************************/ + +.reveal.page .slides { + perspective-origin: 0% 50%; + perspective: 3000px; +} + +.reveal.page .slides section { + padding: 30px; + min-height: 700px; + box-sizing: border-box; + transform-style: preserve-3d; +} + .reveal.page .slides section.past { + z-index: 12; + } + .reveal.page .slides section:not(.stack):before { + content: ''; + position: absolute; + display: block; + width: 100%; + height: 100%; + left: 0; + top: 0; + background: rgba(0,0,0,0.1); + transform: translateZ( -20px ); + } + .reveal.page .slides section:not(.stack):after { + content: ''; + position: absolute; + display: block; + width: 90%; + height: 30px; + left: 5%; + bottom: 0; + background: none; + z-index: 1; + + border-radius: 4px; + box-shadow: 0px 95px 25px rgba(0,0,0,0.2); + + -webkit-transform: translateZ(-90px) rotateX( 65deg ); + } + +.reveal.page .slides>section.stack { + padding: 0; + background: none; +} + +.reveal.page .slides>section.past { + transform-origin: 0% 0%; + transform: translate3d(-40%, 0, 0) rotateY(-80deg); +} + +.reveal.page .slides>section.future { + transform-origin: 100% 0%; + transform: translate3d(0, 0, 0); +} + +.reveal.page .slides>section>section.past { + transform-origin: 0% 0%; + transform: translate3d(0, -40%, 0) rotateX(80deg); +} + +.reveal.page .slides>section>section.future { + transform-origin: 0% 100%; + transform: translate3d(0, 0, 0); +} + + +/********************************************* + * FADE TRANSITION + *********************************************/ + +.reveal .slides section[data-transition=fade], +.reveal.fade .slides section:not([data-transition]), +.reveal.fade .slides>section>section:not([data-transition]) { + transform: none; + transition: opacity 0.5s; +} + + +.reveal.fade.overview .slides section, +.reveal.fade.overview .slides>section>section { + transition: none; +} + + +/********************************************* + * NO TRANSITION + *********************************************/ + +@include transition-global(none) { + transform: none; + transition: none; +} + + +/********************************************* + * PAUSED MODE + *********************************************/ + +.reveal .pause-overlay { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + background: black; + visibility: hidden; + opacity: 0; + z-index: 100; + transition: all 1s ease; +} + +.reveal .pause-overlay .resume-button { + position: absolute; + bottom: 20px; + right: 20px; + color: #ccc; + border-radius: 2px; + padding: 6px 14px; + border: 2px solid #ccc; + font-size: 16px; + background: transparent; + cursor: pointer; + + &:hover { + color: #fff; + border-color: #fff; + } +} + +.reveal.paused .pause-overlay { + visibility: visible; + opacity: 1; +} + + +/********************************************* + * FALLBACK + *********************************************/ + +.reveal .no-transition, +.reveal .no-transition *, +.reveal .slides.disable-slide-transitions section { + transition: none !important; +} + +.reveal .slides.disable-slide-transitions section { + transform: none !important; +} + + +/********************************************* + * PER-SLIDE BACKGROUNDS + *********************************************/ + +.reveal .backgrounds { + position: absolute; + width: 100%; + height: 100%; + top: 0; + left: 0; + perspective: 600px; +} + .reveal .slide-background { + display: none; + position: absolute; + width: 100%; + height: 100%; + opacity: 0; + visibility: hidden; + overflow: hidden; + + background-color: rgba( 0, 0, 0, 0 ); + + transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985); + } + + .reveal .slide-background-content { + position: absolute; + width: 100%; + height: 100%; + + background-position: 50% 50%; + background-repeat: no-repeat; + background-size: cover; + } + + .reveal .slide-background.stack { + display: block; + } + + .reveal .slide-background.present { + opacity: 1; + visibility: visible; + z-index: 2; + } + + .print-pdf .reveal .slide-background { + opacity: 1 !important; + visibility: visible !important; + } + +/* Video backgrounds */ +.reveal .slide-background video { + position: absolute; + width: 100%; + height: 100%; + max-width: none; + max-height: none; + top: 0; + left: 0; + object-fit: cover; +} + .reveal .slide-background[data-background-size="contain"] video { + object-fit: contain; + } + +/* Immediate transition style */ +.reveal[data-background-transition=none]>.backgrounds .slide-background:not([data-background-transition]), +.reveal>.backgrounds .slide-background[data-background-transition=none] { + transition: none; +} + +/* Slide */ +.reveal[data-background-transition=slide]>.backgrounds .slide-background:not([data-background-transition]), +.reveal>.backgrounds .slide-background[data-background-transition=slide] { + opacity: 1; +} + .reveal[data-background-transition=slide]>.backgrounds .slide-background.past:not([data-background-transition]), + .reveal>.backgrounds .slide-background.past[data-background-transition=slide] { + transform: translate(-100%, 0); + } + .reveal[data-background-transition=slide]>.backgrounds .slide-background.future:not([data-background-transition]), + .reveal>.backgrounds .slide-background.future[data-background-transition=slide] { + transform: translate(100%, 0); + } + + .reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]), + .reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=slide] { + transform: translate(0, -100%); + } + .reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]), + .reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=slide] { + transform: translate(0, 100%); + } + + +/* Convex */ +.reveal[data-background-transition=convex]>.backgrounds .slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background.past[data-background-transition=convex] { + opacity: 0; + transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); +} +.reveal[data-background-transition=convex]>.backgrounds .slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background.future[data-background-transition=convex] { + opacity: 0; + transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); +} + +.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=convex] { + opacity: 0; + transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0); +} +.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=convex] { + opacity: 0; + transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0); +} + + +/* Concave */ +.reveal[data-background-transition=concave]>.backgrounds .slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background.past[data-background-transition=concave] { + opacity: 0; + transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); +} +.reveal[data-background-transition=concave]>.backgrounds .slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background.future[data-background-transition=concave] { + opacity: 0; + transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); +} + +.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=concave] { + opacity: 0; + transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0); +} +.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=concave] { + opacity: 0; + transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0); +} + +/* Zoom */ +.reveal[data-background-transition=zoom]>.backgrounds .slide-background:not([data-background-transition]), +.reveal>.backgrounds .slide-background[data-background-transition=zoom] { + transition-timing-function: ease; +} + +.reveal[data-background-transition=zoom]>.backgrounds .slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background.past[data-background-transition=zoom] { + opacity: 0; + visibility: hidden; + transform: scale(16); +} +.reveal[data-background-transition=zoom]>.backgrounds .slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background.future[data-background-transition=zoom] { + opacity: 0; + visibility: hidden; + transform: scale(0.2); +} + +.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=zoom] { + opacity: 0; + visibility: hidden; + transform: scale(16); +} +.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]), +.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=zoom] { + opacity: 0; + visibility: hidden; + transform: scale(0.2); +} + + +/* Global transition speed settings */ +.reveal[data-transition-speed="fast"]>.backgrounds .slide-background { + transition-duration: 400ms; +} +.reveal[data-transition-speed="slow"]>.backgrounds .slide-background { + transition-duration: 1200ms; +} + + +/********************************************* + * AUTO ANIMATE + *********************************************/ + +.reveal [data-auto-animate-target^="unmatched"] { + will-change: opacity; +} + +.reveal section[data-auto-animate]:not(.stack):not([data-auto-animate="running"]) [data-auto-animate-target^="unmatched"] { + opacity: 0; +} + + +/********************************************* + * OVERVIEW + *********************************************/ + +.reveal.overview { + perspective-origin: 50% 50%; + perspective: 700px; + + .slides { + // Fixes overview rendering errors in FF48+, not applied to + // other browsers since it degrades performance + -moz-transform-style: preserve-3d; + } + + .slides section { + height: 100%; + top: 0 !important; + opacity: 1 !important; + overflow: hidden; + visibility: visible !important; + cursor: pointer; + box-sizing: border-box; + } + .slides section:hover, + .slides section.present { + outline: 10px solid rgba(150,150,150,0.4); + outline-offset: 10px; + } + .slides section .fragment { + opacity: 1; + transition: none; + } + .slides section:after, + .slides section:before { + display: none !important; + } + .slides>section.stack { + padding: 0; + top: 0 !important; + background: none; + outline: none; + overflow: visible; + } + + .backgrounds { + perspective: inherit; + + // Fixes overview rendering errors in FF48+, not applied to + // other browsers since it degrades performance + -moz-transform-style: preserve-3d; + } + + .backgrounds .slide-background { + opacity: 1; + visibility: visible; + + // This can't be applied to the slide itself in Safari + outline: 10px solid rgba(150,150,150,0.1); + outline-offset: 10px; + } + + .backgrounds .slide-background.stack { + overflow: visible; + } +} + +// Disable transitions transitions while we're activating +// or deactivating the overview mode. +.reveal.overview .slides section, +.reveal.overview-deactivating .slides section { + transition: none; +} + +.reveal.overview .backgrounds .slide-background, +.reveal.overview-deactivating .backgrounds .slide-background { + transition: none; +} + + +/********************************************* + * RTL SUPPORT + *********************************************/ + +.reveal.rtl .slides, +.reveal.rtl .slides h1, +.reveal.rtl .slides h2, +.reveal.rtl .slides h3, +.reveal.rtl .slides h4, +.reveal.rtl .slides h5, +.reveal.rtl .slides h6 { + direction: rtl; + font-family: sans-serif; +} + +.reveal.rtl pre, +.reveal.rtl code { + direction: ltr; +} + +.reveal.rtl ol, +.reveal.rtl ul { + text-align: right; +} + +.reveal.rtl .progress span { + transform-origin: 100% 0; +} + +/********************************************* + * PARALLAX BACKGROUND + *********************************************/ + +.reveal.has-parallax-background .backgrounds { + transition: all 0.8s ease; +} + +/* Global transition speed settings */ +.reveal.has-parallax-background[data-transition-speed="fast"] .backgrounds { + transition-duration: 400ms; +} +.reveal.has-parallax-background[data-transition-speed="slow"] .backgrounds { + transition-duration: 1200ms; +} + + +/********************************************* + * OVERLAY FOR LINK PREVIEWS AND HELP + *********************************************/ + +$overlayHeaderHeight: 40px; +$overlayHeaderPadding: 5px; + +.reveal > .overlay { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + z-index: 1000; + background: rgba( 0, 0, 0, 0.95 ); + backdrop-filter: blur( 6px ); + transition: all 0.3s ease; +} + + .reveal > .overlay .spinner { + position: absolute; + display: block; + top: 50%; + left: 50%; + width: 32px; + height: 32px; + margin: -16px 0 0 -16px; + z-index: 10; + background-image: url(data:image/gif;base64,R0lGODlhIAAgAPMAAJmZmf%2F%2F%2F6%2Bvr8nJybW1tcDAwOjo6Nvb26ioqKOjo7Ozs%2FLy8vz8%2FAAAAAAAAAAAACH%2FC05FVFNDQVBFMi4wAwEAAAAh%2FhpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh%2BQQJCgAAACwAAAAAIAAgAAAE5xDISWlhperN52JLhSSdRgwVo1ICQZRUsiwHpTJT4iowNS8vyW2icCF6k8HMMBkCEDskxTBDAZwuAkkqIfxIQyhBQBFvAQSDITM5VDW6XNE4KagNh6Bgwe60smQUB3d4Rz1ZBApnFASDd0hihh12BkE9kjAJVlycXIg7CQIFA6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YJvpJivxNaGmLHT0VnOgSYf0dZXS7APdpB309RnHOG5gDqXGLDaC457D1zZ%2FV%2FnmOM82XiHRLYKhKP1oZmADdEAAAh%2BQQJCgAAACwAAAAAIAAgAAAE6hDISWlZpOrNp1lGNRSdRpDUolIGw5RUYhhHukqFu8DsrEyqnWThGvAmhVlteBvojpTDDBUEIFwMFBRAmBkSgOrBFZogCASwBDEY%2FCZSg7GSE0gSCjQBMVG023xWBhklAnoEdhQEfyNqMIcKjhRsjEdnezB%2BA4k8gTwJhFuiW4dokXiloUepBAp5qaKpp6%2BHo7aWW54wl7obvEe0kRuoplCGepwSx2jJvqHEmGt6whJpGpfJCHmOoNHKaHx61WiSR92E4lbFoq%2BB6QDtuetcaBPnW6%2BO7wDHpIiK9SaVK5GgV543tzjgGcghAgAh%2BQQJCgAAACwAAAAAIAAgAAAE7hDISSkxpOrN5zFHNWRdhSiVoVLHspRUMoyUakyEe8PTPCATW9A14E0UvuAKMNAZKYUZCiBMuBakSQKG8G2FzUWox2AUtAQFcBKlVQoLgQReZhQlCIJesQXI5B0CBnUMOxMCenoCfTCEWBsJColTMANldx15BGs8B5wlCZ9Po6OJkwmRpnqkqnuSrayqfKmqpLajoiW5HJq7FL1Gr2mMMcKUMIiJgIemy7xZtJsTmsM4xHiKv5KMCXqfyUCJEonXPN2rAOIAmsfB3uPoAK%2B%2BG%2Bw48edZPK%2BM6hLJpQg484enXIdQFSS1u6UhksENEQAAIfkECQoAAAAsAAAAACAAIAAABOcQyEmpGKLqzWcZRVUQnZYg1aBSh2GUVEIQ2aQOE%2BG%2BcD4ntpWkZQj1JIiZIogDFFyHI0UxQwFugMSOFIPJftfVAEoZLBbcLEFhlQiqGp1Vd140AUklUN3eCA51C1EWMzMCezCBBmkxVIVHBWd3HHl9JQOIJSdSnJ0TDKChCwUJjoWMPaGqDKannasMo6WnM562R5YluZRwur0wpgqZE7NKUm%2BFNRPIhjBJxKZteWuIBMN4zRMIVIhffcgojwCF117i4nlLnY5ztRLsnOk%2BaV%2BoJY7V7m76PdkS4trKcdg0Zc0tTcKkRAAAIfkECQoAAAAsAAAAACAAIAAABO4QyEkpKqjqzScpRaVkXZWQEximw1BSCUEIlDohrft6cpKCk5xid5MNJTaAIkekKGQkWyKHkvhKsR7ARmitkAYDYRIbUQRQjWBwJRzChi9CRlBcY1UN4g0%2FVNB0AlcvcAYHRyZPdEQFYV8ccwR5HWxEJ02YmRMLnJ1xCYp0Y5idpQuhopmmC2KgojKasUQDk5BNAwwMOh2RtRq5uQuPZKGIJQIGwAwGf6I0JXMpC8C7kXWDBINFMxS4DKMAWVWAGYsAdNqW5uaRxkSKJOZKaU3tPOBZ4DuK2LATgJhkPJMgTwKCdFjyPHEnKxFCDhEAACH5BAkKAAAALAAAAAAgACAAAATzEMhJaVKp6s2nIkolIJ2WkBShpkVRWqqQrhLSEu9MZJKK9y1ZrqYK9WiClmvoUaF8gIQSNeF1Er4MNFn4SRSDARWroAIETg1iVwuHjYB1kYc1mwruwXKC9gmsJXliGxc%2BXiUCby9ydh1sOSdMkpMTBpaXBzsfhoc5l58Gm5yToAaZhaOUqjkDgCWNHAULCwOLaTmzswadEqggQwgHuQsHIoZCHQMMQgQGubVEcxOPFAcMDAYUA85eWARmfSRQCdcMe0zeP1AAygwLlJtPNAAL19DARdPzBOWSm1brJBi45soRAWQAAkrQIykShQ9wVhHCwCQCACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiRMDjI0Fd30%2FiI2UA5GSS5UDj2l6NoqgOgN4gksEBgYFf0FDqKgHnyZ9OX8HrgYHdHpcHQULXAS2qKpENRg7eAMLC7kTBaixUYFkKAzWAAnLC7FLVxLWDBLKCwaKTULgEwbLA4hJtOkSBNqITT3xEgfLpBtzE%2FjiuL04RGEBgwWhShRgQExHBAAh%2BQQJCgAAACwAAAAAIAAgAAAE7xDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfZiCqGk5dTESJeaOAlClzsJsqwiJwiqnFrb2nS9kmIcgEsjQydLiIlHehhpejaIjzh9eomSjZR%2BipslWIRLAgMDOR2DOqKogTB9pCUJBagDBXR6XB0EBkIIsaRsGGMMAxoDBgYHTKJiUYEGDAzHC9EACcUGkIgFzgwZ0QsSBcXHiQvOwgDdEwfFs0sDzt4S6BK4xYjkDOzn0unFeBzOBijIm1Dgmg5YFQwsCMjp1oJ8LyIAACH5BAkKAAAALAAAAAAgACAAAATwEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GGl6NoiPOH16iZKNlH6KmyWFOggHhEEvAwwMA0N9GBsEC6amhnVcEwavDAazGwIDaH1ipaYLBUTCGgQDA8NdHz0FpqgTBwsLqAbWAAnIA4FWKdMLGdYGEgraigbT0OITBcg5QwPT4xLrROZL6AuQAPUS7bxLpoWidY0JtxLHKhwwMJBTHgPKdEQAACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GAULDJCRiXo1CpGXDJOUjY%2BYip9DhToJA4RBLwMLCwVDfRgbBAaqqoZ1XBMHswsHtxtFaH1iqaoGNgAIxRpbFAgfPQSqpbgGBqUD1wBXeCYp1AYZ19JJOYgH1KwA4UBvQwXUBxPqVD9L3sbp2BNk2xvvFPJd%2BMFCN6HAAIKgNggY0KtEBAAh%2BQQJCgAAACwAAAAAIAAgAAAE6BDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfYIDMaAFdTESJeaEDAIMxYFqrOUaNW4E4ObYcCXaiBVEgULe0NJaxxtYksjh2NLkZISgDgJhHthkpU4mW6blRiYmZOlh4JWkDqILwUGBnE6TYEbCgevr0N1gH4At7gHiRpFaLNrrq8HNgAJA70AWxQIH1%2BvsYMDAzZQPC9VCNkDWUhGkuE5PxJNwiUK4UfLzOlD4WvzAHaoG9nxPi5d%2BjYUqfAhhykOFwJWiAAAIfkECQoAAAAsAAAAACAAIAAABPAQyElpUqnqzaciSoVkXVUMFaFSwlpOCcMYlErAavhOMnNLNo8KsZsMZItJEIDIFSkLGQoQTNhIsFehRww2CQLKF0tYGKYSg%2BygsZIuNqJksKgbfgIGepNo2cIUB3V1B3IvNiBYNQaDSTtfhhx0CwVPI0UJe0%2Bbm4g5VgcGoqOcnjmjqDSdnhgEoamcsZuXO1aWQy8KAwOAuTYYGwi7w5h%2BKr0SJ8MFihpNbx%2B4Erq7BYBuzsdiH1jCAzoSfl0rVirNbRXlBBlLX%2BBP0XJLAPGzTkAuAOqb0WT5AH7OcdCm5B8TgRwSRKIHQtaLCwg1RAAAOwAAAAAAAAAAAA%3D%3D); + + visibility: visible; + opacity: 0.6; + transition: all 0.3s ease; + } + + .reveal > .overlay header { + position: absolute; + left: 0; + top: 0; + width: 100%; + padding: $overlayHeaderPadding; + z-index: 2; + box-sizing: border-box; + } + .reveal > .overlay header a { + display: inline-block; + width: $overlayHeaderHeight; + height: $overlayHeaderHeight; + line-height: 36px; + padding: 0 10px; + float: right; + opacity: 0.6; + + box-sizing: border-box; + } + .reveal > .overlay header a:hover { + opacity: 1; + } + .reveal > .overlay header a .icon { + display: inline-block; + width: 20px; + height: 20px; + + background-position: 50% 50%; + background-size: 100%; + background-repeat: no-repeat; + } + .reveal > .overlay header a.close .icon { + background-image: url(data:image/png;base64,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); + } + .reveal > .overlay header a.external .icon { + background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAcElEQVRYR+2WSQoAIQwEzf8f7XiOMkUQxUPlGkM3hVmiQfQR9GYnH1SsAQlI4DiBqkCMoNb9y2e90IAEJPAcgdznU9+engMaeJ7Azh5Y1U67gAho4DqBqmB1buAf0MB1AlVBek83ZPkmJMGc1wAR+AAqod/B97TRpQAAAABJRU5ErkJggg==); + } + + .reveal > .overlay .viewport { + position: absolute; + display: flex; + top: $overlayHeaderHeight + $overlayHeaderPadding*2; + right: 0; + bottom: 0; + left: 0; + } + + .reveal > .overlay.overlay-preview .viewport iframe { + width: 100%; + height: 100%; + max-width: 100%; + max-height: 100%; + border: 0; + + opacity: 0; + visibility: hidden; + transition: all 0.3s ease; + } + + .reveal > .overlay.overlay-preview.loaded .viewport iframe { + opacity: 1; + visibility: visible; + } + + .reveal > .overlay.overlay-preview.loaded .viewport-inner { + position: absolute; + z-index: -1; + left: 0; + top: 45%; + width: 100%; + text-align: center; + letter-spacing: normal; + } + .reveal > .overlay.overlay-preview .x-frame-error { + opacity: 0; + transition: opacity 0.3s ease 0.3s; + } + .reveal > .overlay.overlay-preview.loaded .x-frame-error { + opacity: 1; + } + + .reveal > .overlay.overlay-preview.loaded .spinner { + opacity: 0; + visibility: hidden; + transform: scale(0.2); + } + + .reveal > .overlay.overlay-help .viewport { + overflow: auto; + color: #fff; + } + + .reveal > .overlay.overlay-help .viewport .viewport-inner { + width: 600px; + margin: auto; + padding: 20px 20px 80px 20px; + text-align: center; + letter-spacing: normal; + } + + .reveal > .overlay.overlay-help .viewport .viewport-inner .title { + font-size: 20px; + } + + .reveal > .overlay.overlay-help .viewport .viewport-inner table { + border: 1px solid #fff; + border-collapse: collapse; + font-size: 16px; + } + + .reveal > .overlay.overlay-help .viewport .viewport-inner table th, + .reveal > .overlay.overlay-help .viewport .viewport-inner table td { + width: 200px; + padding: 14px; + border: 1px solid #fff; + vertical-align: middle; + } + + .reveal > .overlay.overlay-help .viewport .viewport-inner table th { + padding-top: 20px; + padding-bottom: 20px; + } + +/********************************************* + * PLAYBACK COMPONENT + *********************************************/ + +.reveal .playback { + position: absolute; + left: 15px; + bottom: 20px; + z-index: 30; + cursor: pointer; + transition: all 400ms ease; + -webkit-tap-highlight-color: rgba( 0, 0, 0, 0 ); +} + +.reveal.overview .playback { + opacity: 0; + visibility: hidden; +} + + +/********************************************* + * CODE HIGHLGIHTING + *********************************************/ + +.reveal .hljs { + min-height: 100%; +} + +.reveal .hljs table { + margin: initial; +} + +.reveal .hljs-ln-code, +.reveal .hljs-ln-numbers { + padding: 0; + border: 0; +} + +.reveal .hljs-ln-numbers { + opacity: 0.6; + padding-right: 0.75em; + text-align: right; + vertical-align: top; +} + +.reveal .hljs.has-highlights tr:not(.highlight-line) { + opacity: 0.4; +} + +.reveal .hljs.has-highlights.fragment { + transition: all .2s ease; +} + +.reveal .hljs:not(:first-child).fragment { + position: absolute; + top: 0; + left: 0; + width: 100%; + box-sizing: border-box; +} + +.reveal pre[data-auto-animate-target] { + overflow: hidden; +} +.reveal pre[data-auto-animate-target] code { + height: 100%; +} + + +/********************************************* + * ROLLING LINKS + *********************************************/ + +.reveal .roll { + display: inline-block; + line-height: 1.2; + overflow: hidden; + + vertical-align: top; + perspective: 400px; + perspective-origin: 50% 50%; +} + .reveal .roll:hover { + background: none; + text-shadow: none; + } +.reveal .roll span { + display: block; + position: relative; + padding: 0 2px; + + pointer-events: none; + transition: all 400ms ease; + transform-origin: 50% 0%; + transform-style: preserve-3d; + backface-visibility: hidden; +} + .reveal .roll:hover span { + background: rgba(0,0,0,0.5); + transform: translate3d( 0px, 0px, -45px ) rotateX( 90deg ); + } +.reveal .roll span:after { + content: attr(data-title); + + display: block; + position: absolute; + left: 0; + top: 0; + padding: 0 2px; + backface-visibility: hidden; + transform-origin: 50% 0%; + transform: translate3d( 0px, 110%, 0px ) rotateX( -90deg ); +} + + +/********************************************* + * SPEAKER NOTES + *********************************************/ + +$notesWidthPercent: 25%; + +// Hide on-page notes +.reveal aside.notes { + display: none; +} + +// An interface element that can optionally be used to show the +// speaker notes to all viewers, on top of the presentation +.reveal .speaker-notes { + display: none; + position: absolute; + width: math.div($notesWidthPercent, (1 - math.div($notesWidthPercent,100))) * 1%; + height: 100%; + top: 0; + left: 100%; + padding: 14px 18px 14px 18px; + z-index: 1; + font-size: 18px; + line-height: 1.4; + border: 1px solid rgba( 0, 0, 0, 0.05 ); + color: #222; + background-color: #f5f5f5; + overflow: auto; + box-sizing: border-box; + text-align: left; + font-family: Helvetica, sans-serif; + -webkit-overflow-scrolling: touch; + + .notes-placeholder { + color: #ccc; + font-style: italic; + } + + &:focus { + outline: none; + } + + &:before { + content: 'Speaker notes'; + display: block; + margin-bottom: 10px; + opacity: 0.5; + } +} + + +.reveal.show-notes { + max-width: 100% - $notesWidthPercent; + overflow: visible; +} + +.reveal.show-notes .speaker-notes { + display: block; +} + +@media screen and (min-width: 1600px) { + .reveal .speaker-notes { + font-size: 20px; + } +} + +@media screen and (max-width: 1024px) { + .reveal.show-notes { + border-left: 0; + max-width: none; + max-height: 70%; + max-height: 70vh; + overflow: visible; + } + + .reveal.show-notes .speaker-notes { + top: 100%; + left: 0; + width: 100%; + height: 30vh; + border: 0; + } +} + +@media screen and (max-width: 600px) { + .reveal.show-notes { + max-height: 60%; + max-height: 60vh; + } + + .reveal.show-notes .speaker-notes { + top: 100%; + height: 40vh; + } + + .reveal .speaker-notes { + font-size: 14px; + } +} + + +/********************************************* + * JUMP-TO-SLIDE COMPONENT + *********************************************/ + + .reveal .jump-to-slide { + position: absolute; + top: 15px; + left: 15px; + z-index: 30; + font-size: 32px; + -webkit-tap-highlight-color: rgba( 0, 0, 0, 0 ); +} + +.reveal .jump-to-slide-input { + background: transparent; + padding: 8px; + font-size: inherit; + color: currentColor; + border: 0; +} +.reveal .jump-to-slide-input::placeholder { + color: currentColor; + opacity: 0.5; +} + +.reveal.has-dark-background .jump-to-slide-input { + color: #fff; +} +.reveal.has-light-background .jump-to-slide-input { + color: #222; +} + +.reveal .jump-to-slide-input:focus { + outline: none; +} + + +/********************************************* + * ZOOM PLUGIN + *********************************************/ + +.zoomed .reveal *, +.zoomed .reveal *:before, +.zoomed .reveal *:after { + backface-visibility: visible !important; +} + +.zoomed .reveal .progress, +.zoomed .reveal .controls { + opacity: 0; +} + +.zoomed .reveal .roll span { + background: none; +} + +.zoomed .reveal .roll span:after { + visibility: hidden; +} + + +/********************************************* + * SCROLL VIEW + *********************************************/ +.reveal-viewport.loading-scroll-mode { + visibility: hidden; +} + +.reveal-viewport.reveal-scroll { + & { + margin: 0 auto; + overflow: auto; + overflow-x: hidden; + overflow-y: auto; + z-index: 1; + + --r-scrollbar-width: 7px; + --r-scrollbar-trigger-size: 5px; + --r-controls-spacing: 8px; + } + + @media screen and (max-width: 500px) { + --r-scrollbar-width: 3px; + --r-scrollbar-trigger-size: 3px; + } + + .controls, + .progress, + .playback, + .backgrounds, + .slide-number, + .speaker-notes { + display: none !important; + } + + .overlay, + .pause-overlay { + position: fixed; + } + + .reveal { + overflow: visible; + touch-action: manipulation; + } + + .slides { + position: static; + pointer-events: initial; + + left: auto; + top: auto; + width: 100% !important; + margin: 0; + padding: 0; + + overflow: visible; + display: block; + + perspective: none; + perspective-origin: 50% 50%; + } + + .scroll-page { + position: relative; + width: 100%; + height: calc(var(--page-height) + var(--page-scroll-padding)); + z-index: 1; + overflow: visible; + } + + .scroll-page-sticky { + position: sticky; + height: var(--page-height); + top: 0px; + } + + .scroll-page-content { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + overflow: hidden; + } + + .scroll-page section { + visibility: visible !important; + display: block !important; + position: absolute !important; + width: var(--slide-width) !important; + height: var(--slide-height) !important; + top: 50% !important; + left: 50% !important; + opacity: 1 !important; + transform: scale(var(--slide-scale)) translate(-50%, -50%) !important; + transform-style: flat !important; + transform-origin: 0 0 !important; + } + + .slide-background { + display: block !important; + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + z-index: auto !important; + visibility: visible; + opacity: 1; + touch-action: manipulation; + } +} + +// Chromium +.reveal-viewport.reveal-scroll[data-scrollbar="true"]::-webkit-scrollbar, +.reveal-viewport.reveal-scroll[data-scrollbar="auto"]::-webkit-scrollbar { + display: none; +} + +// Firefox +.reveal-viewport.reveal-scroll[data-scrollbar="true"], +.reveal-viewport.reveal-scroll[data-scrollbar="auto"] { + scrollbar-width: none; +} + +.reveal.has-dark-background, +.reveal-viewport.has-dark-background { + --r-overlay-element-bg-color: 240, 240, 240; + --r-overlay-element-fg-color: 0, 0, 0; +} +.reveal.has-light-background, +.reveal-viewport.has-light-background { + --r-overlay-element-bg-color: 0, 0, 0; + --r-overlay-element-fg-color: 240, 240, 240; +} + +.reveal-viewport.reveal-scroll .scrollbar { + position: sticky; + top: 50%; + z-index: 20; + opacity: 0; + transition: all 0.3s ease; + + &.visible, + &:hover { + opacity: 1; + } + + .scrollbar-inner { + position: absolute; + width: var(--r-scrollbar-width); + height: calc(var(--viewport-height) - var(--r-controls-spacing) * 2); + right: var(--r-controls-spacing); + top: 0; + transform: translateY(-50%); + border-radius: var(--r-scrollbar-width); + z-index: 10; + } + + .scrollbar-playhead { + position: absolute; + width: var(--r-scrollbar-width); + height: var(--r-scrollbar-width); + top: 0; + left: 0; + border-radius: var(--r-scrollbar-width); + background-color: rgba(var(--r-overlay-element-bg-color), 1); + z-index: 11; + transition: background-color 0.2s ease; + } + + .scrollbar-slide { + position: absolute; + width: 100%; + background-color: rgba(var(--r-overlay-element-bg-color), 0.2); + box-shadow: 0 0 0px 1px rgba(var(--r-overlay-element-fg-color), 0.1); + border-radius: var(--r-scrollbar-width); + transition: background-color 0.2s ease; + } + + // Hit area + .scrollbar-slide:after { + content: ''; + position: absolute; + width: 200%; + height: 100%; + top: 0; + left: -50%; + background: rgba( 0, 0, 0, 0 ); + z-index: -1; + } + + .scrollbar-slide:hover, + .scrollbar-slide.active { + background-color: rgba(var(--r-overlay-element-bg-color), 0.4); + } + + .scrollbar-trigger { + position: absolute; + width: 100%; + transition: background-color 0.2s ease; + } + + .scrollbar-slide.active.has-triggers { + background-color: rgba(var(--r-overlay-element-bg-color), 0.4); + z-index: 10; + } + + .scrollbar-slide.active .scrollbar-trigger:after { + content: ''; + position: absolute; + width: var(--r-scrollbar-trigger-size); + height: var(--r-scrollbar-trigger-size); + border-radius: 20px; + top: 50%; + left: 50%; + transform: translate(-50%, -50%); + background-color: rgba(var(--r-overlay-element-bg-color), 1); + transition: transform 0.2s ease, opacity 0.2s ease; + opacity: 0.4; + } + + .scrollbar-slide.active .scrollbar-trigger.active:after, + .scrollbar-slide.active .scrollbar-trigger.active ~ .scrollbar-trigger:after { + opacity: 1; + } + + .scrollbar-slide.active .scrollbar-trigger ~ .scrollbar-trigger.active:after { + transform: translate(calc( var(--r-scrollbar-width) * -2), 0); + background-color: rgba(var(--r-overlay-element-bg-color), 1); + } +} + + +/********************************************* + * PRINT STYLES + *********************************************/ + +@import 'print/pdf.scss'; +@import 'print/paper.scss'; + diff --git a/css/theme/README.md b/css/theme/README.md new file mode 100644 index 0000000..30916c4 --- /dev/null +++ b/css/theme/README.md @@ -0,0 +1,21 @@ +## Dependencies + +Themes are written using Sass to keep things modular and reduce the need for repeated selectors across files. Make sure that you have the reveal.js development environment installed before proceeding: https://revealjs.com/installation/#full-setup + +## Creating a Theme + +To create your own theme, start by duplicating a ```.scss``` file in [/css/theme/source](https://github.com/hakimel/reveal.js/blob/master/css/theme/source). It will be automatically compiled from Sass to CSS (see the [gulpfile](https://github.com/hakimel/reveal.js/blob/master/gulpfile.js)) when you run `npm run build -- css-themes`. + +Each theme file does four things in the following order: + +1. **Include [/css/theme/template/mixins.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/mixins.scss)** +Shared utility functions. + +2. **Include [/css/theme/template/settings.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/settings.scss)** +Declares a set of custom variables that the template file (step 4) expects. Can be overridden in step 3. + +3. **Override** +This is where you override the default theme. Either by specifying variables (see [settings.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/settings.scss) for reference) or by adding any selectors and styles you please. + +4. **Include [/css/theme/template/theme.scss](https://github.com/hakimel/reveal.js/blob/master/css/theme/template/theme.scss)** +The template theme file which will generate final CSS output based on the currently defined variables. diff --git a/css/theme/source/beige.scss b/css/theme/source/beige.scss new file mode 100644 index 0000000..7598b94 --- /dev/null +++ b/css/theme/source/beige.scss @@ -0,0 +1,44 @@ +/** + * Beige theme for reveal.js. + * + * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(./fonts/league-gothic/league-gothic.css); +@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic); + + +// Override theme settings (see ../template/settings.scss) +$mainColor: #333; +$headingColor: #333; +$headingTextShadow: none; +$backgroundColor: #f7f3de; +$linkColor: #8b743d; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: rgba(79, 64, 28, 0.99); +$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15); + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Background generator +@mixin bodyBackground() { + @include radial-gradient( rgba(247,242,211,1), rgba(255,255,255,1) ); +} + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/black-contrast.scss b/css/theme/source/black-contrast.scss new file mode 100644 index 0000000..9e1a2ca --- /dev/null +++ b/css/theme/source/black-contrast.scss @@ -0,0 +1,49 @@ +/** + * Black compact & high contrast reveal.js theme, with headers not in capitals. + * + * By Peter Kehl. Based on black.(s)css by Hakim El Hattab, http://hakim.se + * + * - Keep the source similar to black.css - for easy comparison. + * - $mainFontSize controls code blocks, too (although under some ratio). + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + +// Include theme-specific fonts +@import url(./fonts/source-sans-pro/source-sans-pro.css); + + +// Override theme settings (see ../template/settings.scss) +$backgroundColor: #000000; + +$mainColor: #fff; +$headingColor: #fff; + +$mainFontSize: 42px; +$mainFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingTextShadow: none; +$headingLetterSpacing: normal; +$headingTextTransform: uppercase; +$headingFontWeight: 600; +$linkColor: #42affa; +$linkColorHover: lighten( $linkColor, 15% ); +$selectionBackgroundColor: lighten( $linkColor, 25% ); + +$heading1Size: 2.5em; +$heading2Size: 1.6em; +$heading3Size: 1.3em; +$heading4Size: 1.0em; + +// Change text colors against light slide backgrounds +@include light-bg-text-color(#000); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/black.scss b/css/theme/source/black.scss new file mode 100644 index 0000000..7c655c4 --- /dev/null +++ b/css/theme/source/black.scss @@ -0,0 +1,46 @@ +/** + * Black theme for reveal.js. This is the opposite of the 'white' theme. + * + * By Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + +// Include theme-specific fonts +@import url(./fonts/source-sans-pro/source-sans-pro.css); + + +// Override theme settings (see ../template/settings.scss) +$backgroundColor: #191919; + +$mainColor: #fff; +$headingColor: #fff; + +$mainFontSize: 42px; +$mainFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingTextShadow: none; +$headingLetterSpacing: normal; +$headingTextTransform: uppercase; +$headingFontWeight: 600; +$linkColor: #42affa; +$linkColorHover: lighten( $linkColor, 15% ); +$selectionBackgroundColor: rgba( $linkColor, 0.75 ); + +$heading1Size: 2.5em; +$heading2Size: 1.6em; +$heading3Size: 1.3em; +$heading4Size: 1.0em; + +// Change text colors against light slide backgrounds +@include light-bg-text-color(#222); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/blood.scss b/css/theme/source/blood.scss new file mode 100644 index 0000000..b5a8679 --- /dev/null +++ b/css/theme/source/blood.scss @@ -0,0 +1,87 @@ +/** + * Blood theme for reveal.js + * Author: Walther http://github.com/Walther + * + * Designed to be used with highlight.js theme + * "monokai_sublime.css" available from + * https://github.com/isagalaev/highlight.js/ + * + * For other themes, change $codeBackground accordingly. + * + */ + + // Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + +// Include theme-specific fonts + +@import url(https://fonts.googleapis.com/css?family=Ubuntu:300,700,300italic,700italic); + +// Colors used in the theme +$blood: #a23; +$coal: #222; +$codeBackground: #23241f; + +$backgroundColor: $coal; + +// Main text +$mainFont: Ubuntu, 'sans-serif'; +$mainColor: #eee; + +// Headings +$headingFont: Ubuntu, 'sans-serif'; +$headingTextShadow: 2px 2px 2px $coal; + +// h1 shadow, borrowed humbly from +// (c) Default theme by Hakim El Hattab +$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15); + +// Links +$linkColor: $blood; +$linkColorHover: lighten( $linkColor, 20% ); + +// Text selection +$selectionBackgroundColor: $blood; +$selectionColor: #fff; + +// Change text colors against dark slide backgrounds +@include light-bg-text-color(#222); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- + +// some overrides after theme template import + +.reveal p { + font-weight: 300; + text-shadow: 1px 1px $coal; +} + +section.has-light-background { + p, h1, h2, h3, h4 { + text-shadow: none; + } +} + +.reveal h1, +.reveal h2, +.reveal h3, +.reveal h4, +.reveal h5, +.reveal h6 { + font-weight: 700; +} + +.reveal p code { + background-color: $codeBackground; + display: inline-block; + border-radius: 7px; +} + +.reveal small code { + vertical-align: baseline; +} \ No newline at end of file diff --git a/css/theme/source/dracula.scss b/css/theme/source/dracula.scss new file mode 100644 index 0000000..ae968b8 --- /dev/null +++ b/css/theme/source/dracula.scss @@ -0,0 +1,106 @@ +/** + * Dracula Dark theme for reveal.js. + * Based on https://draculatheme.com + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +$systemFontsSansSerif: -apple-system, + BlinkMacSystemFont, + avenir next, + avenir, + segoe ui, + helvetica neue, + helvetica, + Cantarell, + Ubuntu, + roboto, + noto, + arial, + sans-serif; +$systemFontsMono: Menlo, + Consolas, + Monaco, + Liberation Mono, + Lucida Console, + monospace; + +/** + * Dracula colors by Zeno Rocha + * https://draculatheme.com/contribute + */ +html * { + color-profile: sRGB; + rendering-intent: auto; +} + +$background: #282A36; +$foreground: #F8F8F2; +$selection: #44475A; +$comment: #6272A4; +$red: #FF5555; +$orange: #FFB86C; +$yellow: #F1FA8C; +$green: #50FA7B; +$purple: #BD93F9; +$cyan: #8BE9FD; +$pink: #FF79C6; + + + +// Override theme settings (see ../template/settings.scss) +$mainColor: $foreground; +$headingColor: $purple; +$headingTextShadow: none; +$headingTextTransform: none; +$backgroundColor: $background; +$linkColor: $pink; +$linkColorHover: $cyan; +$selectionBackgroundColor: $selection; +$inlineCodeColor: $green; +$listBulletColor: $cyan; + +$mainFont: $systemFontsSansSerif; +$codeFont: "Fira Code", $systemFontsMono; + +// Change text colors against light slide backgrounds +@include light-bg-text-color($background); + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- + +// Define additional color effects based on Dracula spec +// https://spec.draculatheme.com/ +:root { + --r-bold-color: #{$orange}; + --r-italic-color: #{$yellow}; + --r-inline-code-color: #{$inlineCodeColor}; + --r-list-bullet-color: #{$listBulletColor}; +} + +.reveal { + strong, b { + color: var(--r-bold-color); + } + em, i, blockquote { + color: var(--r-italic-color); + } + code { + color: var(--r-inline-code-color); + } + // Dracula colored list bullets and numbers + ul, ol { + li::marker { + color: var(--r-list-bullet-color); + } + } +} + diff --git a/css/theme/source/league.scss b/css/theme/source/league.scss new file mode 100644 index 0000000..ee01258 --- /dev/null +++ b/css/theme/source/league.scss @@ -0,0 +1,36 @@ +/** + * League theme for reveal.js. + * + * This was the default theme pre-3.0.0. + * + * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(./fonts/league-gothic/league-gothic.css); +@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic); + +// Override theme settings (see ../template/settings.scss) +$headingTextShadow: 0px 0px 6px rgba(0,0,0,0.2); +$heading1TextShadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 20px 20px rgba(0,0,0,.15); + +// Background generator +@mixin bodyBackground() { + @include radial-gradient( rgba(28,30,32,1), rgba(85,90,95,1) ); +} + +// Change text colors against light slide backgrounds +@include light-bg-text-color(#222); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/moon.scss b/css/theme/source/moon.scss new file mode 100644 index 0000000..59ef0a9 --- /dev/null +++ b/css/theme/source/moon.scss @@ -0,0 +1,54 @@ +/** + * Solarized Dark theme for reveal.js. + * Author: Achim Staebler + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(./fonts/league-gothic/league-gothic.css); +@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic); + +/** + * Solarized colors by Ethan Schoonover + */ + +// Solarized colors +$base03: #002b36; +$base02: #073642; +$base01: #586e75; +$base00: #657b83; +$base0: #839496; +$base1: #93a1a1; +$base2: #eee8d5; +$base3: #fdf6e3; +$yellow: #b58900; +$orange: #cb4b16; +$red: #dc322f; +$magenta: #d33682; +$violet: #6c71c4; +$blue: #268bd2; +$cyan: #2aa198; +$green: #859900; + +// Override theme settings (see ../template/settings.scss) +$mainColor: $base1; +$headingColor: $base2; +$headingTextShadow: none; +$backgroundColor: $base03; +$linkColor: $blue; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: $magenta; + +// Change text colors against light slide backgrounds +@include light-bg-text-color(#222); + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/night.scss b/css/theme/source/night.scss new file mode 100644 index 0000000..98a2062 --- /dev/null +++ b/css/theme/source/night.scss @@ -0,0 +1,37 @@ +/** + * Black theme for reveal.js. + * + * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + +// Include theme-specific fonts +@import url(https://fonts.googleapis.com/css?family=Montserrat:700); +@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic,700italic); + + +// Override theme settings (see ../template/settings.scss) +$backgroundColor: #111; + +$mainFont: 'Open Sans', sans-serif; +$linkColor: #e7ad52; +$linkColorHover: lighten( $linkColor, 20% ); +$headingFont: 'Montserrat', Impact, sans-serif; +$headingTextShadow: none; +$headingLetterSpacing: -0.03em; +$headingTextTransform: none; +$selectionBackgroundColor: #e7ad52; + +// Change text colors against light slide backgrounds +@include light-bg-text-color(#222); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- \ No newline at end of file diff --git a/css/theme/source/serif.scss b/css/theme/source/serif.scss new file mode 100644 index 0000000..babec4d --- /dev/null +++ b/css/theme/source/serif.scss @@ -0,0 +1,41 @@ +/** + * A simple theme for reveal.js presentations, similar + * to the default theme. The accent color is brown. + * + * This theme is Copyright (C) 2012-2013 Owen Versteeg, http://owenversteeg.com - it is MIT licensed. + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Override theme settings (see ../template/settings.scss) +$mainFont: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif; +$mainColor: #000; +$headingFont: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif; +$headingColor: #383D3D; +$headingTextShadow: none; +$headingTextTransform: none; +$backgroundColor: #F0F1EB; +$linkColor: #51483D; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: #26351C; + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +.reveal a { + line-height: 1.3em; +} + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/simple.scss b/css/theme/source/simple.scss new file mode 100644 index 0000000..51a21af --- /dev/null +++ b/css/theme/source/simple.scss @@ -0,0 +1,43 @@ +/** + * A simple theme for reveal.js presentations, similar + * to the default theme. The accent color is darkblue. + * + * This theme is Copyright (C) 2012 Owen Versteeg, https://github.com/StereotypicalApps. It is MIT licensed. + * reveal.js is Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(https://fonts.googleapis.com/css?family=News+Cycle:400,700); +@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic); + + +// Override theme settings (see ../template/settings.scss) +$mainFont: 'Lato', sans-serif; +$mainColor: #000; +$headingFont: 'News Cycle', Impact, sans-serif; +$headingColor: #000; +$headingTextShadow: none; +$headingTextTransform: none; +$backgroundColor: #fff; +$linkColor: #00008B; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: rgba(0, 0, 0, 0.99); + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- \ No newline at end of file diff --git a/css/theme/source/sky.scss b/css/theme/source/sky.scss new file mode 100644 index 0000000..457e9e5 --- /dev/null +++ b/css/theme/source/sky.scss @@ -0,0 +1,52 @@ +/** + * Sky theme for reveal.js. + * + * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(https://fonts.googleapis.com/css?family=Quicksand:400,700,400italic,700italic); +@import url(https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700); + + +// Override theme settings (see ../template/settings.scss) +$mainFont: 'Open Sans', sans-serif; +$mainColor: #333; +$headingFont: 'Quicksand', sans-serif; +$headingColor: #333; +$headingLetterSpacing: -0.08em; +$headingTextShadow: none; +$backgroundColor: #f7fbfc; +$linkColor: #3b759e; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: #134674; + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Fix links so they are not cut off +.reveal a { + line-height: 1.3em; +} + +// Background generator +@mixin bodyBackground() { + @include radial-gradient( #add9e4, #f7fbfc ); +} + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/solarized.scss b/css/theme/source/solarized.scss new file mode 100644 index 0000000..f325345 --- /dev/null +++ b/css/theme/source/solarized.scss @@ -0,0 +1,66 @@ +/** + * Solarized Light theme for reveal.js. + * Author: Achim Staebler + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + + +// Include theme-specific fonts +@import url(./fonts/league-gothic/league-gothic.css); +@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic); + + +/** + * Solarized colors by Ethan Schoonover + */ +html * { + color-profile: sRGB; + rendering-intent: auto; +} + +// Solarized colors +$base03: #002b36; +$base02: #073642; +$base01: #586e75; +$base00: #657b83; +$base0: #839496; +$base1: #93a1a1; +$base2: #eee8d5; +$base3: #fdf6e3; +$yellow: #b58900; +$orange: #cb4b16; +$red: #dc322f; +$magenta: #d33682; +$violet: #6c71c4; +$blue: #268bd2; +$cyan: #2aa198; +$green: #859900; + +// Override theme settings (see ../template/settings.scss) +$mainColor: $base00; +$headingColor: $base01; +$headingTextShadow: none; +$backgroundColor: $base3; +$linkColor: $blue; +$linkColorHover: lighten( $linkColor, 20% ); +$selectionBackgroundColor: $magenta; + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Background generator +// @mixin bodyBackground() { +// @include radial-gradient( rgba($base3,1), rgba(lighten($base3, 20%),1) ); +// } + + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/white-contrast.scss b/css/theme/source/white-contrast.scss new file mode 100644 index 0000000..e22007e --- /dev/null +++ b/css/theme/source/white-contrast.scss @@ -0,0 +1,52 @@ +/** + * White compact & high contrast reveal.js theme, with headers not in capitals. + * + * By Peter Kehl. Based on white.(s)css by Hakim El Hattab, http://hakim.se + * + * - Keep the source similar to black.css - for easy comparison. + * - $mainFontSize controls code blocks, too (although under some ratio). + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + +// Include theme-specific fonts +@import url(./fonts/source-sans-pro/source-sans-pro.css); + + +// Override theme settings (see ../template/settings.scss) +$backgroundColor: #fff; + +$mainColor: #000; +$headingColor: #000; + +$mainFontSize: 42px; +$mainFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingTextShadow: none; +$headingLetterSpacing: normal; +$headingTextTransform: uppercase; +$headingFontWeight: 600; +$linkColor: #2a76dd; +$linkColorHover: lighten( $linkColor, 15% ); +$selectionBackgroundColor: lighten( $linkColor, 25% ); + +$heading1Size: 2.5em; +$heading2Size: 1.6em; +$heading3Size: 1.3em; +$heading4Size: 1.0em; + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/source/white.scss b/css/theme/source/white.scss new file mode 100644 index 0000000..a2b1292 --- /dev/null +++ b/css/theme/source/white.scss @@ -0,0 +1,49 @@ +/** + * White theme for reveal.js. This is the opposite of the 'black' theme. + * + * By Hakim El Hattab, http://hakim.se + */ + + +// Default mixins and settings ----------------- +@import "../template/mixins"; +@import "../template/settings"; +// --------------------------------------------- + + +// Include theme-specific fonts +@import url(./fonts/source-sans-pro/source-sans-pro.css); + + +// Override theme settings (see ../template/settings.scss) +$backgroundColor: #fff; + +$mainColor: #222; +$headingColor: #222; + +$mainFontSize: 42px; +$mainFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingFont: 'Source Sans Pro', Helvetica, sans-serif; +$headingTextShadow: none; +$headingLetterSpacing: normal; +$headingTextTransform: uppercase; +$headingFontWeight: 600; +$linkColor: #2a76dd; +$linkColorHover: lighten( $linkColor, 15% ); +$selectionBackgroundColor: lighten( $linkColor, 25% ); + +$heading1Size: 2.5em; +$heading2Size: 1.6em; +$heading3Size: 1.3em; +$heading4Size: 1.0em; + +$overlayElementBgColor: 0, 0, 0; +$overlayElementFgColor: 240, 240, 240; + +// Change text colors against dark slide backgrounds +@include dark-bg-text-color(#fff); + + +// Theme template ------------------------------ +@import "../template/theme"; +// --------------------------------------------- diff --git a/css/theme/template/exposer.scss b/css/theme/template/exposer.scss new file mode 100644 index 0000000..2e9288d --- /dev/null +++ b/css/theme/template/exposer.scss @@ -0,0 +1,30 @@ +// Exposes theme's variables for easy re-use in CSS for plugin authors + +:root { + --r-background-color: #{$backgroundColor}; + --r-main-font: #{$mainFont}; + --r-main-font-size: #{$mainFontSize}; + --r-main-color: #{$mainColor}; + --r-block-margin: #{$blockMargin}; + --r-heading-margin: #{$headingMargin}; + --r-heading-font: #{$headingFont}; + --r-heading-color: #{$headingColor}; + --r-heading-line-height: #{$headingLineHeight}; + --r-heading-letter-spacing: #{$headingLetterSpacing}; + --r-heading-text-transform: #{$headingTextTransform}; + --r-heading-text-shadow: #{$headingTextShadow}; + --r-heading-font-weight: #{$headingFontWeight}; + --r-heading1-text-shadow: #{$heading1TextShadow}; + --r-heading1-size: #{$heading1Size}; + --r-heading2-size: #{$heading2Size}; + --r-heading3-size: #{$heading3Size}; + --r-heading4-size: #{$heading4Size}; + --r-code-font: #{$codeFont}; + --r-link-color: #{$linkColor}; + --r-link-color-dark: #{darken($linkColor , 15% )}; + --r-link-color-hover: #{$linkColorHover}; + --r-selection-background-color: #{$selectionBackgroundColor}; + --r-selection-color: #{$selectionColor}; + --r-overlay-element-bg-color: #{$overlayElementBgColor}; + --r-overlay-element-fg-color: #{$overlayElementFgColor}; +} diff --git a/css/theme/template/mixins.scss b/css/theme/template/mixins.scss new file mode 100644 index 0000000..17a3db5 --- /dev/null +++ b/css/theme/template/mixins.scss @@ -0,0 +1,45 @@ +@mixin vertical-gradient( $top, $bottom ) { + background: $top; + background: -moz-linear-gradient( top, $top 0%, $bottom 100% ); + background: -webkit-gradient( linear, left top, left bottom, color-stop(0%,$top), color-stop(100%,$bottom) ); + background: -webkit-linear-gradient( top, $top 0%, $bottom 100% ); + background: -o-linear-gradient( top, $top 0%, $bottom 100% ); + background: -ms-linear-gradient( top, $top 0%, $bottom 100% ); + background: linear-gradient( top, $top 0%, $bottom 100% ); +} + +@mixin horizontal-gradient( $top, $bottom ) { + background: $top; + background: -moz-linear-gradient( left, $top 0%, $bottom 100% ); + background: -webkit-gradient( linear, left top, right top, color-stop(0%,$top), color-stop(100%,$bottom) ); + background: -webkit-linear-gradient( left, $top 0%, $bottom 100% ); + background: -o-linear-gradient( left, $top 0%, $bottom 100% ); + background: -ms-linear-gradient( left, $top 0%, $bottom 100% ); + background: linear-gradient( left, $top 0%, $bottom 100% ); +} + +@mixin radial-gradient( $outer, $inner, $type: circle ) { + background: $outer; + background: -moz-radial-gradient( center, $type cover, $inner 0%, $outer 100% ); + background: -webkit-gradient( radial, center center, 0px, center center, 100%, color-stop(0%,$inner), color-stop(100%,$outer) ); + background: -webkit-radial-gradient( center, $type cover, $inner 0%, $outer 100% ); + background: -o-radial-gradient( center, $type cover, $inner 0%, $outer 100% ); + background: -ms-radial-gradient( center, $type cover, $inner 0%, $outer 100% ); + background: radial-gradient( center, $type cover, $inner 0%, $outer 100% ); +} + +@mixin light-bg-text-color( $color ) { + section.has-light-background { + &, h1, h2, h3, h4, h5, h6 { + color: $color; + } + } +} + +@mixin dark-bg-text-color( $color ) { + section.has-dark-background { + &, h1, h2, h3, h4, h5, h6 { + color: $color; + } + } +} \ No newline at end of file diff --git a/css/theme/template/settings.scss b/css/theme/template/settings.scss new file mode 100644 index 0000000..3d54ac8 --- /dev/null +++ b/css/theme/template/settings.scss @@ -0,0 +1,50 @@ +// Base settings for all themes that can optionally be +// overridden by the super-theme + +// Background of the presentation +$backgroundColor: #2b2b2b; + +// Primary/body text +$mainFont: 'Lato', sans-serif; +$mainFontSize: 40px; +$mainColor: #eee; + +// Vertical spacing between blocks of text +$blockMargin: 20px; + +// Headings +$headingMargin: 0 0 $blockMargin 0; +$headingFont: 'League Gothic', Impact, sans-serif; +$headingColor: #eee; +$headingLineHeight: 1.2; +$headingLetterSpacing: normal; +$headingTextTransform: uppercase; +$headingTextShadow: none; +$headingFontWeight: normal; +$heading1TextShadow: $headingTextShadow; + +$heading1Size: 3.77em; +$heading2Size: 2.11em; +$heading3Size: 1.55em; +$heading4Size: 1.00em; + +$codeFont: monospace; + +// Links and actions +$linkColor: #13DAEC; +$linkColorHover: lighten( $linkColor, 20% ); + +// Text selection +$selectionBackgroundColor: #FF5E99; +$selectionColor: #fff; + +// Colors used for UI elements that are overlaid on top of +// the presentation +$overlayElementBgColor: 240, 240, 240; +$overlayElementFgColor: 0, 0, 0; + +// Generates the presentation background, can be overridden +// to return a background image or gradient +@mixin bodyBackground() { + background: $backgroundColor; +} diff --git a/css/theme/template/theme.scss b/css/theme/template/theme.scss new file mode 100644 index 0000000..bc377d3 --- /dev/null +++ b/css/theme/template/theme.scss @@ -0,0 +1,331 @@ +// Base theme template for reveal.js + +/********************************************* + * GLOBAL STYLES + *********************************************/ + +@import "./exposer"; + +.reveal-viewport { + @include bodyBackground(); + background-color: var(--r-background-color); +} + +.reveal { + font-family: var(--r-main-font); + font-size: var(--r-main-font-size); + font-weight: normal; + color: var(--r-main-color); +} + +.reveal ::selection { + color: var(--r-selection-color); + background: var(--r-selection-background-color); + text-shadow: none; +} + +.reveal ::-moz-selection { + color: var(--r-selection-color); + background: var(--r-selection-background-color); + text-shadow: none; +} + +.reveal .slides section, +.reveal .slides section>section { + line-height: 1.3; + font-weight: inherit; +} + +/********************************************* + * HEADERS + *********************************************/ + +.reveal h1, +.reveal h2, +.reveal h3, +.reveal h4, +.reveal h5, +.reveal h6 { + margin: var(--r-heading-margin); + color: var(--r-heading-color); + + font-family: var(--r-heading-font); + font-weight: var(--r-heading-font-weight); + line-height: var(--r-heading-line-height); + letter-spacing: var(--r-heading-letter-spacing); + + text-transform: var(--r-heading-text-transform); + text-shadow: var(--r-heading-text-shadow); + + word-wrap: break-word; +} + +.reveal h1 {font-size: var(--r-heading1-size); } +.reveal h2 {font-size: var(--r-heading2-size); } +.reveal h3 {font-size: var(--r-heading3-size); } +.reveal h4 {font-size: var(--r-heading4-size); } + +.reveal h1 { + text-shadow: var(--r-heading1-text-shadow); +} + + +/********************************************* + * OTHER + *********************************************/ + +.reveal p { + margin: var(--r-block-margin) 0; + line-height: 1.3; +} + +/* Remove trailing margins after titles */ +.reveal h1:last-child, +.reveal h2:last-child, +.reveal h3:last-child, +.reveal h4:last-child, +.reveal h5:last-child, +.reveal h6:last-child { + margin-bottom: 0; +} + +/* Ensure certain elements are never larger than the slide itself */ +.reveal img, +.reveal video, +.reveal iframe { + max-width: 95%; + max-height: 95%; +} +.reveal strong, +.reveal b { + font-weight: bold; +} + +.reveal em { + font-style: italic; +} + +.reveal ol, +.reveal dl, +.reveal ul { + display: inline-block; + + text-align: left; + margin: 0 0 0 1em; +} + +.reveal ol { + list-style-type: decimal; +} + +.reveal ul { + list-style-type: disc; +} + +.reveal ul ul { + list-style-type: square; +} + +.reveal ul ul ul { + list-style-type: circle; +} + +.reveal ul ul, +.reveal ul ol, +.reveal ol ol, +.reveal ol ul { + display: block; + margin-left: 40px; +} + +.reveal dt { + font-weight: bold; +} + +.reveal dd { + margin-left: 40px; +} + +.reveal blockquote { + display: block; + position: relative; + width: 70%; + margin: var(--r-block-margin) auto; + padding: 5px; + + font-style: italic; + background: rgba(255, 255, 255, 0.05); + box-shadow: 0px 0px 2px rgba(0,0,0,0.2); +} + .reveal blockquote p:first-child, + .reveal blockquote p:last-child { + display: inline-block; + } + +.reveal q { + font-style: italic; +} + +.reveal pre { + display: block; + position: relative; + width: 90%; + margin: var(--r-block-margin) auto; + + text-align: left; + font-size: 0.55em; + font-family: var(--r-code-font); + line-height: 1.2em; + + word-wrap: break-word; + + box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.15); +} + +.reveal code { + font-family: var(--r-code-font); + text-transform: none; + tab-size: 2; +} + +.reveal pre code { + display: block; + padding: 5px; + overflow: auto; + max-height: 400px; + word-wrap: normal; +} + +.reveal .code-wrapper { + white-space: normal; +} + +.reveal .code-wrapper code { + white-space: pre; +} + +.reveal table { + margin: auto; + border-collapse: collapse; + border-spacing: 0; +} + +.reveal table th { + font-weight: bold; +} + +.reveal table th, +.reveal table td { + text-align: left; + padding: 0.2em 0.5em 0.2em 0.5em; + border-bottom: 1px solid; +} + +.reveal table th[align="center"], +.reveal table td[align="center"] { + text-align: center; +} + +.reveal table th[align="right"], +.reveal table td[align="right"] { + text-align: right; +} + +.reveal table tbody tr:last-child th, +.reveal table tbody tr:last-child td { + border-bottom: none; +} + +.reveal sup { + vertical-align: super; + font-size: smaller; +} +.reveal sub { + vertical-align: sub; + font-size: smaller; +} + +.reveal small { + display: inline-block; + font-size: 0.6em; + line-height: 1.2em; + vertical-align: top; +} + +.reveal small * { + vertical-align: top; +} + +.reveal img { + margin: var(--r-block-margin) 0; +} + + +/********************************************* + * LINKS + *********************************************/ + +.reveal a { + color: var(--r-link-color); + text-decoration: none; + transition: color .15s ease; +} + .reveal a:hover { + color: var(--r-link-color-hover); + text-shadow: none; + border: none; + } + +.reveal .roll span:after { + color: #fff; + // background: darken( var(--r-link-color), 15% ); + background: var(--r-link-color-dark); + +} + + +/********************************************* + * Frame helper + *********************************************/ + +.reveal .r-frame { + border: 4px solid var(--r-main-color); + box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); +} + +.reveal a .r-frame { + transition: all .15s linear; +} + +.reveal a:hover .r-frame { + border-color: var(--r-link-color); + box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); +} + + +/********************************************* + * NAVIGATION CONTROLS + *********************************************/ + +.reveal .controls { + color: var(--r-link-color); +} + + +/********************************************* + * PROGRESS BAR + *********************************************/ + +.reveal .progress { + background: rgba(0,0,0,0.2); + color: var(--r-link-color); +} + +/********************************************* + * PRINT BACKGROUND + *********************************************/ + @media print { + .backgrounds { + background-color: var(--r-background-color); + } +} diff --git a/demo.html b/demo.html new file mode 100644 index 0000000..5a8ba36 --- /dev/null +++ b/demo.html @@ -0,0 +1,481 @@ + + + + + + + reveal.js – The HTML Presentation Framework + + + + + + + + + + + + + + + + + + + +
+ + +
+
+ + + +

The HTML Presentation Framework

+

+ Created by Hakim El Hattab and contributors +

+
+ +
+

Hello There

+

+ reveal.js enables you to create beautiful interactive slide decks using HTML. This presentation will show you examples of what it can do. +

+
+ + +
+
+

Vertical Slides

+

Slides can be nested inside of each other.

+

Use the Space key to navigate through all slides.

+
+ + Down arrow + +
+
+

Basement Level 1

+

Nested slides are useful for adding additional detail underneath a high level horizontal slide.

+
+
+

Basement Level 2

+

That's it, time to go back up.

+
+ + Up arrow + +
+
+ +
+

Slides

+

+ Not a coder? Not a problem. There's a fully-featured visual editor for authoring these, try it out at https://slides.com. +

+
+ +
+

Hidden Slides

+

+ This slide is visible in the source, but hidden when the presentation is viewed. You can show all hidden slides by setting the `showHiddenSlides` config option to `true`. +

+
+ +
+

Pretty Code

+ 

+						import React, { useState } from 'react';
+
+						function Example() {
+						  const [count, setCount] = useState(0);
+
+						  return (
+						    ...
+						  );
+						}
+
+

Code syntax highlighting courtesy of highlight.js.

+
+ +
+

With Animations

+
+
+ +
+

Point of View

+

+ Press ESC to enter the slide overview. +

+

+ Hold down the alt key (ctrl in Linux) and click on any element to zoom towards it using zoom.js. Click again to zoom back out. +

+

+ (NOTE: Use ctrl + click in Linux.) +

+
+ +
+

Auto-Animate

+

Automatically animate matching elements across slides with Auto-Animate.

+
+
+
+
+
+
+
+
+
+
+
+
+

Auto-Animate

+
+
+
+
+
+
+
+

Auto-Animate

+
+ +
+

Touch Optimized

+

+ Presentations look great on touch devices, like mobile phones and tablets. Simply swipe through your slides. +

+
+ +
+ +
+ +
+

Add the r-fit-text class to auto-size text

+

FIT TEXT

+
+ +
+
+

Fragments

+

Hit the next arrow...

+

... to step through ...

+

... a fragmented slide.

+ + +
+
+

Fragment Styles

+

There's different types of fragments, like:

+

grow

+

shrink

+

fade-out

+

+ fade-right, + up, + down, + left +

+

fade-in-then-out

+

fade-in-then-semi-out

+

Highlight red blue green

+
+
+ +
+

Transition Styles

+

+ You can select from different transitions, like:
+ None - + Fade - + Slide - + Convex - + Concave - + Zoom +

+
+ +
+

Themes

+

+ reveal.js comes with a few themes built in:
+ + Black (default) - + White - + League - + Sky - + Beige - + Simple
+ Serif - + Blood - + Night - + Moon - + Solarized +

+
+ +
+
+

Slide Backgrounds

+

+ Set data-background="#dddddd" on a slide to change the background color. All CSS color formats are supported. +

+ + Down arrow + +
+
+

Gradient Backgrounds

+ 
<section data-background-gradient=
+							"linear-gradient(to bottom, #ddd, #191919)">
+
+
+

Image Backgrounds

+ 
<section data-background="image.png">
+
+
+

Tiled Backgrounds

+ 
<section data-background="image.png" data-background-repeat="repeat" data-background-size="100px">
+
+
+
+

Video Backgrounds

+ 
<section data-background-video="video.mp4,video.webm">
+
+
+
+

... and GIFs!

+
+
+ +
+

Background Transitions

+

+ Different background transitions are available via the backgroundTransition option. This one's called "zoom". +

+ 
Reveal.configure({ backgroundTransition: 'zoom' })
+
+ +
+

Background Transitions

+

+ You can override background transitions per-slide. +

+ 
<section data-background-transition="zoom">
+
+ +
+
+

Iframe Backgrounds

+

Since reveal.js runs on the web, you can easily embed other web content. Try interacting with the page in the background.

+
+
+ +
+

Marvelous List

+
    +
  • No order here
    • +
  • Or here
    • +
  • Or here
    • +
  • Or here
    • +
+
+ +
+

Fantastic Ordered List

+
    +
  1. One is smaller than...
    2. +
  2. Two is smaller than...
    3. +
  3. Three!
    4. +
+
+ +
+

Tabular Tables

+ + + + + + + + + + + + + + + + + + + + + + + + + +
ItemValueQuantity
Apples$17
Lemonade$218
Bread$32
+
+ +
+

Clever Quotes

+

+ These guys come in two forms, inline: The nice thing about standards is that there are so many to choose from and block: +

+
+ “For years there has been a theory that millions of monkeys typing at random on millions of typewriters would + reproduce the entire works of Shakespeare. The Internet has proven this theory to be untrue.” +
+
+ +
+

Intergalactic Interconnections

+

+ You can link between slides internally, + like this. +

+
+ +
+

Speaker View

+

There's a speaker view. It includes a timer, preview of the upcoming slide as well as your speaker notes.

+

Press the S key to try it out.

+ + +
+ +
+

Export to PDF

+

Presentations can be exported to PDF, here's an example:

+ +
+ +
+

Global State

+

+ Set data-state="something" on a slide and "something" + will be added as a class to the document element when the slide is open. This lets you + apply broader style changes, like switching the page background. +

+
+ +
+

State Events

+

+ Additionally custom events can be triggered on a per slide basis by binding to the data-state name. +

+ 

+Reveal.on( 'customevent', function() {
+	console.log( '"customevent" has fired' );
+} );
+
+
+ +
+

Take a Moment

+

+ Press B or . on your keyboard to pause the presentation. This is helpful when you're on stage and want to take distracting slides off the screen. +

+
+ +
+

Much more

+ +
+ +
+

THE END

+

+ - Try the online editor
+ - Source code & documentation +

+
+ +
+ +
+ + + + + + + + + + + diff --git a/dist/reset.css b/dist/reset.css new file mode 100644 index 0000000..e238539 --- /dev/null +++ b/dist/reset.css @@ -0,0 +1,30 @@ +/* http://meyerweb.com/eric/tools/css/reset/ + v4.0 | 20180602 + License: none (public domain) +*/ + +html, body, div, span, applet, object, iframe, +h1, h2, h3, h4, h5, h6, p, blockquote, pre, +a, abbr, acronym, address, big, cite, code, +del, dfn, em, img, ins, kbd, q, s, samp, +small, strike, strong, sub, sup, tt, var, +b, u, i, center, +dl, dt, dd, ol, ul, li, +fieldset, form, label, legend, +table, caption, tbody, tfoot, thead, tr, th, td, +article, aside, canvas, details, embed, +figure, figcaption, footer, header, hgroup, +main, menu, nav, output, ruby, section, summary, +time, mark, audio, video { + margin: 0; + padding: 0; + border: 0; + font-size: 100%; + font: inherit; + vertical-align: baseline; +} +/* HTML5 display-role reset for older browsers */ +article, aside, details, figcaption, figure, +footer, header, 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o.styles[e]:(!0===t.explicitValue&&(o.styles[e]=t.value),!0===i.explicitValue&&(r.styles[e]=i.value))}let l="",d=Object.keys(o.styles);if(d.length>0){r.styles.transition="none",o.styles.transition=`all ${n.duration}s ${n.easing} ${n.delay}s`,o.styles["transition-property"]=d.join(", "),o.styles["will-change"]=d.join(", "),l='[data-auto-animate-target="'+a+'"] {'+Object.keys(r.styles).map((e=>e+": "+r.styles[e]+" !important;")).join("")+'}[data-auto-animate="running"] [data-auto-animate-target="'+a+'"] {'+Object.keys(o.styles).map((e=>e+": "+o.styles[e]+" !important;")).join("")+"}"}return l}getAutoAnimateOptions(t,i){let s={easing:this.Reveal.getConfig().autoAnimateEasing,duration:this.Reveal.getConfig().autoAnimateDuration,delay:0};if(s=e(s,i),t.parentNode){let e=r(t.parentNode,"[data-auto-animate-target]");e&&(s=this.getAutoAnimateOptions(e,s))}return t.dataset.autoAnimateEasing&&(s.easing=t.dataset.autoAnimateEasing),t.dataset.autoAnimateDuration&&(s.duration=parseFloat(t.dataset.autoAnimateDuration)),t.dataset.autoAnimateDelay&&(s.delay=parseFloat(t.dataset.autoAnimateDelay)),s}getAutoAnimatableProperties(e,t,i){let s=this.Reveal.getConfig(),a={styles:[]};if(!1!==i.translate||!1!==i.scale){let e;if("function"==typeof i.measure)e=i.measure(t);else if(s.center)e=t.getBoundingClientRect();else{let i=this.Reveal.getScale();e={x:t.offsetLeft*i,y:t.offsetTop*i,width:t.offsetWidth*i,height:t.offsetHeight*i}}a.x=e.x,a.y=e.y,a.width=e.width,a.height=e.height}const n=getComputedStyle(t);return(i.styles||s.autoAnimateStyles).forEach((t=>{let i;"string"==typeof t&&(t={property:t}),void 0!==t.from&&"from"===e?i={value:t.from,explicitValue:!0}:void 0!==t.to&&"to"===e?i={value:t.to,explicitValue:!0}:("line-height"===t.property&&(i=parseFloat(n["line-height"])/parseFloat(n["font-size"])),isNaN(i)&&(i=n[t.property])),""!==i&&(a.styles[t.property]=i)})),a}getAutoAnimatableElements(e,t){let i=("function"==typeof this.Reveal.getConfig().autoAnimateMatcher?this.Reveal.getConfig().autoAnimateMatcher:this.getAutoAnimatePairs).call(this,e,t),s=[];return i.filter(((e,t)=>{if(-1===s.indexOf(e.to))return s.push(e.to),!0}))}getAutoAnimatePairs(e,t){let i=[];const s="h1, h2, h3, h4, h5, h6, p, li";return this.findAutoAnimateMatches(i,e,t,"[data-id]",(e=>e.nodeName+":::"+e.getAttribute("data-id"))),this.findAutoAnimateMatches(i,e,t,s,(e=>e.nodeName+":::"+e.innerText)),this.findAutoAnimateMatches(i,e,t,"img, video, iframe",(e=>e.nodeName+":::"+(e.getAttribute("src")||e.getAttribute("data-src")))),this.findAutoAnimateMatches(i,e,t,"pre",(e=>e.nodeName+":::"+e.innerText)),i.forEach((e=>{n(e.from,s)?e.options={scale:!1}:n(e.from,"pre")&&(e.options={scale:!1,styles:["width","height"]},this.findAutoAnimateMatches(i,e.from,e.to,".hljs .hljs-ln-code",(e=>e.textContent),{scale:!1,styles:[],measure:this.getLocalBoundingBox.bind(this)}),this.findAutoAnimateMatches(i,e.from,e.to,".hljs .hljs-ln-numbers[data-line-number]",(e=>e.getAttribute("data-line-number")),{scale:!1,styles:["width"],measure:this.getLocalBoundingBox.bind(this)}))}),this),i}getLocalBoundingBox(e){const t=this.Reveal.getScale();return{x:Math.round(e.offsetLeft*t*100)/100,y:Math.round(e.offsetTop*t*100)/100,width:Math.round(e.offsetWidth*t*100)/100,height:Math.round(e.offsetHeight*t*100)/100}}findAutoAnimateMatches(e,t,i,s,a,n){let r={},o={};[].slice.call(t.querySelectorAll(s)).forEach(((e,t)=>{const i=a(e);"string"==typeof i&&i.length&&(r[i]=r[i]||[],r[i].push(e))})),[].slice.call(i.querySelectorAll(s)).forEach(((t,i)=>{const s=a(t);let l;if(o[s]=o[s]||[],o[s].push(t),r[s]){const e=o[s].length-1,t=r[s].length-1;r[s][e]?(l=r[s][e],r[s][e]=null):r[s][t]&&(l=r[s][t],r[s][t]=null)}l&&e.push({from:l,to:t,options:n})}))}getUnmatchedAutoAnimateElements(e){return[].slice.call(e.children).reduce(((e,t)=>{const i=t.querySelector("[data-auto-animate-target]");return t.hasAttribute("data-auto-animate-target")||i||e.push(t),t.querySelector("[data-auto-animate-target]")&&(e=e.concat(this.getUnmatchedAutoAnimateElements(t))),e}),[])}}class L{constructor(e){this.Reveal=e,this.active=!1,this.activatedCallbacks=[],this.onScroll=this.onScroll.bind(this)}activate(){if(this.active)return;const e=this.Reveal.getState();this.active=!0,this.slideHTMLBeforeActivation=this.Reveal.getSlidesElement().innerHTML;const i=t(this.Reveal.getRevealElement(),m),s=t(this.Reveal.getRevealElement(),".backgrounds>.slide-background");let a;this.viewportElement.classList.add("loading-scroll-mode","reveal-scroll");const n=window.getComputedStyle(this.viewportElement);n&&n.background&&(a=n.background);const r=[],o=i[0].parentNode;let l;const d=(e,t,i,n)=>{let o;if(l&&this.Reveal.shouldAutoAnimateBetween(l,e))o=document.createElement("div"),o.className="scroll-page-content scroll-auto-animate-page",o.style.display="none",l.closest(".scroll-page-content").parentNode.appendChild(o);else{const e=document.createElement("div");if(e.className="scroll-page",r.push(e),n&&s.length>t){const i=s[t],n=window.getComputedStyle(i);n&&n.background?e.style.background=n.background:a&&(e.style.background=a)}else a&&(e.style.background=a);const i=document.createElement("div");i.className="scroll-page-sticky",e.appendChild(i),o=document.createElement("div"),o.className="scroll-page-content",i.appendChild(o)}o.appendChild(e),e.classList.remove("past","future"),e.setAttribute("data-index-h",t),e.setAttribute("data-index-v",i),e.slideBackgroundElement&&(e.slideBackgroundElement.remove("past","future"),o.insertBefore(e.slideBackgroundElement,e)),l=e};i.forEach(((e,t)=>{this.Reveal.isVerticalStack(e)?e.querySelectorAll("section").forEach(((e,i)=>{d(e,t,i,!0)})):d(e,t,0)}),this),this.createProgressBar(),t(this.Reveal.getRevealElement(),".stack").forEach((e=>e.remove())),r.forEach((e=>o.appendChild(e))),this.Reveal.slideContent.layout(this.Reveal.getSlidesElement()),this.Reveal.layout(),this.Reveal.setState(e),this.activatedCallbacks.forEach((e=>e())),this.activatedCallbacks=[],this.restoreScrollPosition(),this.viewportElement.classList.remove("loading-scroll-mode"),this.viewportElement.addEventListener("scroll",this.onScroll,{passive:!0})}deactivate(){if(!this.active)return;const e=this.Reveal.getState();this.active=!1,this.viewportElement.removeEventListener("scroll",this.onScroll),this.viewportElement.classList.remove("reveal-scroll"),this.removeProgressBar(),this.Reveal.getSlidesElement().innerHTML=this.slideHTMLBeforeActivation,this.Reveal.sync(),this.Reveal.setState(e),this.slideHTMLBeforeActivation=null}toggle(e){"boolean"==typeof e?e?this.activate():this.deactivate():this.isActive()?this.deactivate():this.activate()}isActive(){return this.active}createProgressBar(){this.progressBar=document.createElement("div"),this.progressBar.className="scrollbar",this.progressBarInner=document.createElement("div"),this.progressBarInner.className="scrollbar-inner",this.progressBar.appendChild(this.progressBarInner),this.progressBarPlayhead=document.createElement("div"),this.progressBarPlayhead.className="scrollbar-playhead",this.progressBarInner.appendChild(this.progressBarPlayhead),this.viewportElement.insertBefore(this.progressBar,this.viewportElement.firstChild);const e=e=>{let t=(e.clientY-this.progressBarInner.getBoundingClientRect().top)/this.progressBarHeight;t=Math.max(Math.min(t,1),0),this.viewportElement.scrollTop=t*(this.viewportElement.scrollHeight-this.viewportElement.offsetHeight)},t=i=>{this.draggingProgressBar=!1,this.showProgressBar(),document.removeEventListener("mousemove",e),document.removeEventListener("mouseup",t)};this.progressBarInner.addEventListener("mousedown",(i=>{i.preventDefault(),this.draggingProgressBar=!0,document.addEventListener("mousemove",e),document.addEventListener("mouseup",t),e(i)}))}removeProgressBar(){this.progressBar&&(this.progressBar.remove(),this.progressBar=null)}layout(){this.isActive()&&(this.syncPages(),this.syncScrollPosition())}syncPages(){const e=this.Reveal.getConfig(),t=this.Reveal.getComputedSlideSize(window.innerWidth,window.innerHeight),i=this.Reveal.getScale(),s="compact"===e.scrollLayout,a=this.viewportElement.offsetHeight,n=t.height*i,r=s?n:a;this.scrollTriggerHeight=s?n:a,this.viewportElement.style.setProperty("--page-height",r+"px"),this.viewportElement.style.scrollSnapType="string"==typeof e.scrollSnap?`y ${e.scrollSnap}`:"",this.slideTriggers=[];const o=Array.from(this.Reveal.getRevealElement().querySelectorAll(".scroll-page"));this.pages=o.map((i=>{const n=this.createPage({pageElement:i,slideElement:i.querySelector("section"),stickyElement:i.querySelector(".scroll-page-sticky"),contentElement:i.querySelector(".scroll-page-content"),backgroundElement:i.querySelector(".slide-background"),autoAnimateElements:i.querySelectorAll(".scroll-auto-animate-page"),autoAnimatePages:[]});n.pageElement.style.setProperty("--slide-height",!0===e.center?"auto":t.height+"px"),this.slideTriggers.push({page:n,activate:()=>this.activatePage(n),deactivate:()=>this.deactivatePage(n)}),this.createFragmentTriggersForPage(n),n.autoAnimateElements.length>0&&this.createAutoAnimateTriggersForPage(n);let o=Math.max(n.scrollTriggers.length-1,0);o+=n.autoAnimatePages.reduce(((e,t)=>e+Math.max(t.scrollTriggers.length-1,0)),n.autoAnimatePages.length),n.pageElement.querySelectorAll(".scroll-snap-point").forEach((e=>e.remove()));for(let e=0;e0?(n.pageHeight=a,n.pageElement.style.setProperty("--page-height",a+"px")):(n.pageHeight=r,n.pageElement.style.removeProperty("--page-height")),n.scrollPadding=this.scrollTriggerHeight*o,n.totalHeight=n.pageHeight+n.scrollPadding,n.pageElement.style.setProperty("--page-scroll-padding",n.scrollPadding+"px"),o>0?(n.stickyElement.style.position="sticky",n.stickyElement.style.top=Math.max((a-n.pageHeight)/2,0)+"px"):(n.stickyElement.style.position="relative",n.pageElement.style.scrollSnapAlign=n.pageHeight1?(this.progressBar||this.createProgressBar(),this.syncProgressBar()):this.removeProgressBar()}setTriggerRanges(){this.totalScrollTriggerCount=this.slideTriggers.reduce(((e,t)=>e+Math.max(t.page.scrollTriggers.length,1)),0);let e=0;this.slideTriggers.forEach(((t,i)=>{t.range=[e,e+Math.max(t.page.scrollTriggers.length,1)/this.totalScrollTriggerCount];const s=(t.range[1]-t.range[0])/t.page.scrollTriggers.length;t.page.scrollTriggers.forEach(((t,i)=>{t.range=[e+i*s,e+(i+1)*s]})),e=t.range[1]}))}createFragmentTriggersForPage(e,t){t=t||e.slideElement;const i=this.Reveal.fragments.sort(t.querySelectorAll(".fragment"),!0);return i.length&&(e.fragments=this.Reveal.fragments.sort(t.querySelectorAll(".fragment:not(.disabled)")),e.scrollTriggers.push({activate:()=>{this.Reveal.fragments.update(-1,e.fragments,t)}}),i.forEach(((i,s)=>{e.scrollTriggers.push({activate:()=>{this.Reveal.fragments.update(s,e.fragments,t)}})}))),e.scrollTriggers.length}createAutoAnimateTriggersForPage(e){e.autoAnimateElements.length>0&&this.slideTriggers.push(...Array.from(e.autoAnimateElements).map(((t,i)=>{let s=this.createPage({slideElement:t.querySelector("section"),contentElement:t,backgroundElement:t.querySelector(".slide-background")});return this.createFragmentTriggersForPage(s,s.slideElement),e.autoAnimatePages.push(s),{page:s,activate:()=>this.activatePage(s),deactivate:()=>this.deactivatePage(s)}})))}createPage(e){return e.scrollTriggers=[],e.indexh=parseInt(e.slideElement.getAttribute("data-index-h"),10),e.indexv=parseInt(e.slideElement.getAttribute("data-index-v"),10),e}syncProgressBar(){this.progressBarInner.querySelectorAll(".scrollbar-slide").forEach((e=>e.remove()));const e=this.viewportElement.scrollHeight,t=this.viewportElement.offsetHeight,i=t/e;this.progressBarHeight=this.progressBarInner.offsetHeight,this.playheadHeight=Math.max(i*this.progressBarHeight,8),this.progressBarScrollableHeight=this.progressBarHeight-this.playheadHeight;const s=t/e*this.progressBarHeight,a=Math.min(s/8,4);this.progressBarPlayhead.style.height=this.playheadHeight-a+"px",s>6?this.slideTriggers.forEach((e=>{const{page:t}=e;t.progressBarSlide=document.createElement("div"),t.progressBarSlide.className="scrollbar-slide",t.progressBarSlide.style.top=e.range[0]*this.progressBarHeight+"px",t.progressBarSlide.style.height=(e.range[1]-e.range[0])*this.progressBarHeight-a+"px",t.progressBarSlide.classList.toggle("has-triggers",t.scrollTriggers.length>0),this.progressBarInner.appendChild(t.progressBarSlide),t.scrollTriggerElements=t.scrollTriggers.map(((i,s)=>{const n=document.createElement("div");return n.className="scrollbar-trigger",n.style.top=(i.range[0]-e.range[0])*this.progressBarHeight+"px",n.style.height=(i.range[1]-i.range[0])*this.progressBarHeight-a+"px",t.progressBarSlide.appendChild(n),0===s&&(n.style.display="none"),n}))})):this.pages.forEach((e=>e.progressBarSlide=null))}syncScrollPosition(){const e=this.viewportElement.offsetHeight,t=e/this.viewportElement.scrollHeight,i=this.viewportElement.scrollTop,s=this.viewportElement.scrollHeight-e,a=Math.max(Math.min(i/s,1),0),n=Math.max(Math.min((i+e/2)/this.viewportElement.scrollHeight,1),0);let r;this.slideTriggers.forEach((e=>{const{page:i}=e;a>=e.range[0]-2*t&&a<=e.range[1]+2*t&&!i.loaded?(i.loaded=!0,this.Reveal.slideContent.load(i.slideElement)):i.loaded&&(i.loaded=!1,this.Reveal.slideContent.unload(i.slideElement)),a>=e.range[0]&&a<=e.range[1]?(this.activateTrigger(e),r=e.page):e.active&&this.deactivateTrigger(e)})),r&&r.scrollTriggers.forEach((e=>{n>=e.range[0]&&n<=e.range[1]?this.activateTrigger(e):e.active&&this.deactivateTrigger(e)})),this.setProgressBarValue(i/(this.viewportElement.scrollHeight-e))}setProgressBarValue(e){this.progressBar&&(this.progressBarPlayhead.style.transform=`translateY(${e*this.progressBarScrollableHeight}px)`,this.getAllPages().filter((e=>e.progressBarSlide)).forEach((e=>{e.progressBarSlide.classList.toggle("active",!0===e.active),e.scrollTriggers.forEach(((t,i)=>{e.scrollTriggerElements[i].classList.toggle("active",!0===e.active&&!0===t.active)}))})),this.showProgressBar())}showProgressBar(){this.progressBar.classList.add("visible"),clearTimeout(this.hideProgressBarTimeout),"auto"!==this.Reveal.getConfig().scrollProgress||this.draggingProgressBar||(this.hideProgressBarTimeout=setTimeout((()=>{this.progressBar&&this.progressBar.classList.remove("visible")}),500))}prev(){this.viewportElement.scrollTop-=this.scrollTriggerHeight}next(){this.viewportElement.scrollTop+=this.scrollTriggerHeight}scrollToSlide(e){if(this.active){const t=this.getScrollTriggerBySlide(e);t&&(this.viewportElement.scrollTop=t.range[0]*(this.viewportElement.scrollHeight-this.viewportElement.offsetHeight))}else this.activatedCallbacks.push((()=>this.scrollToSlide(e)))}storeScrollPosition(){clearTimeout(this.storeScrollPositionTimeout),this.storeScrollPositionTimeout=setTimeout((()=>{sessionStorage.setItem("reveal-scroll-top",this.viewportElement.scrollTop),sessionStorage.setItem("reveal-scroll-origin",location.origin+location.pathname),this.storeScrollPositionTimeout=null}),50)}restoreScrollPosition(){const e=sessionStorage.getItem("reveal-scroll-top"),t=sessionStorage.getItem("reveal-scroll-origin");e&&t===location.origin+location.pathname&&(this.viewportElement.scrollTop=parseInt(e,10))}activatePage(e){if(!e.active){e.active=!0;const{slideElement:t,backgroundElement:i,contentElement:s,indexh:a,indexv:n}=e;s.style.display="block",t.classList.add("present"),i&&i.classList.add("present"),this.Reveal.setCurrentScrollPage(t,a,n),this.Reveal.backgrounds.bubbleSlideContrastClassToElement(t,this.viewportElement),Array.from(s.parentNode.querySelectorAll(".scroll-page-content")).forEach((e=>{e!==s&&(e.style.display="none")}))}}deactivatePage(e){e.active&&(e.active=!1,e.slideElement&&e.slideElement.classList.remove("present"),e.backgroundElement&&e.backgroundElement.classList.remove("present"))}activateTrigger(e){e.active||(e.active=!0,e.activate())}deactivateTrigger(e){e.active&&(e.active=!1,e.deactivate&&e.deactivate())}getSlideByIndices(e,t){const i=this.getAllPages().find((i=>i.indexh===e&&i.indexv===t));return i?i.slideElement:null}getScrollTriggerBySlide(e){return this.slideTriggers.find((t=>t.page.slideElement===e))}getAllPages(){return this.pages.flatMap((e=>[e,...e.autoAnimatePages||[]]))}onScroll(){this.syncScrollPosition(),this.storeScrollPosition()}get viewportElement(){return this.Reveal.getViewportElement()}}class C{constructor(e){this.Reveal=e}async activate(){const e=this.Reveal.getConfig(),i=t(this.Reveal.getRevealElement(),v),s=e.slideNumber&&/all|print/i.test(e.showSlideNumber),a=this.Reveal.getComputedSlideSize(window.innerWidth,window.innerHeight),n=Math.floor(a.width*(1+e.margin)),r=Math.floor(a.height*(1+e.margin)),l=a.width,d=a.height;await new Promise(requestAnimationFrame),o("@page{size:"+n+"px "+r+"px; margin: 0px;}"),o(".reveal section>img, .reveal section>video, .reveal section>iframe{max-width: "+l+"px; max-height:"+d+"px}"),document.documentElement.classList.add("reveal-print","print-pdf"),document.body.style.width=n+"px",document.body.style.height=r+"px";const c=this.Reveal.getViewportElement();let h;if(c){const e=window.getComputedStyle(c);e&&e.background&&(h=e.background)}await new Promise(requestAnimationFrame),this.Reveal.layoutSlideContents(l,d),await new Promise(requestAnimationFrame);const u=i.map((e=>e.scrollHeight)),g=[],p=i[0].parentNode;let m=1;i.forEach((function(i,a){if(!1===i.classList.contains("stack")){let o=(n-l)/2,c=(r-d)/2;const p=u[a];let v=Math.max(Math.ceil(p/r),1);v=Math.min(v,e.pdfMaxPagesPerSlide),(1===v&&e.center||i.classList.contains("center"))&&(c=Math.max((r-p)/2,0));const f=document.createElement("div");if(g.push(f),f.className="pdf-page",f.style.height=(r+e.pdfPageHeightOffset)*v+"px",h&&(f.style.background=h),f.appendChild(i),i.style.left=o+"px",i.style.top=c+"px",i.style.width=l+"px",this.Reveal.slideContent.layout(i),i.slideBackgroundElement&&f.insertBefore(i.slideBackgroundElement,i),e.showNotes){const t=this.Reveal.getSlideNotes(i);if(t){const i=8,s="string"==typeof e.showNotes?e.showNotes:"inline",a=document.createElement("div");a.classList.add("speaker-notes"),a.classList.add("speaker-notes-pdf"),a.setAttribute("data-layout",s),a.innerHTML=t,"separate-page"===s?g.push(a):(a.style.left=i+"px",a.style.bottom=i+"px",a.style.width=n-2*i+"px",f.appendChild(a))}}if(s){const e=document.createElement("div");e.classList.add("slide-number"),e.classList.add("slide-number-pdf"),e.innerHTML=m++,f.appendChild(e)}if(e.pdfSeparateFragments){const e=this.Reveal.fragments.sort(f.querySelectorAll(".fragment"),!0);let t;e.forEach((function(e,i){t&&t.forEach((function(e){e.classList.remove("current-fragment")})),e.forEach((function(e){e.classList.add("visible","current-fragment")}),this);const a=f.cloneNode(!0);if(s){const e=i+1;a.querySelector(".slide-number-pdf").innerHTML+="."+e}g.push(a),t=e}),this),e.forEach((function(e){e.forEach((function(e){e.classList.remove("visible","current-fragment")}))}))}else t(f,".fragment:not(.fade-out)").forEach((function(e){e.classList.add("visible")}))}}),this),await new Promise(requestAnimationFrame),g.forEach((e=>p.appendChild(e))),this.Reveal.slideContent.layout(this.Reveal.getSlidesElement()),this.Reveal.dispatchEvent({type:"pdf-ready"}),c.classList.remove("loading-scroll-mode")}isActive(){return"print"===this.Reveal.getConfig().view}}class x{constructor(e){this.Reveal=e}configure(e,t){!1===e.fragments?this.disable():!1===t.fragments&&this.enable()}disable(){t(this.Reveal.getSlidesElement(),".fragment").forEach((e=>{e.classList.add("visible"),e.classList.remove("current-fragment")}))}enable(){t(this.Reveal.getSlidesElement(),".fragment").forEach((e=>{e.classList.remove("visible"),e.classList.remove("current-fragment")}))}availableRoutes(){let e=this.Reveal.getCurrentSlide();if(e&&this.Reveal.getConfig().fragments){let t=e.querySelectorAll(".fragment:not(.disabled)"),i=e.querySelectorAll(".fragment:not(.disabled):not(.visible)");return{prev:t.length-i.length>0,next:!!i.length}}return{prev:!1,next:!1}}sort(e,t=!1){e=Array.from(e);let i=[],s=[],a=[];e.forEach((e=>{if(e.hasAttribute("data-fragment-index")){let t=parseInt(e.getAttribute("data-fragment-index"),10);i[t]||(i[t]=[]),i[t].push(e)}else s.push([e])})),i=i.concat(s);let n=0;return 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precedence.\n *\n * @param {object} a\n * @param {object} b\n */\nexport const extend = ( a, b ) => {\n\n\tfor( let i in b ) {\n\t\ta[ i ] = b[ i ];\n\t}\n\n\treturn a;\n\n}\n\n/**\n * querySelectorAll but returns an Array.\n */\nexport const queryAll = ( el, selector ) => {\n\n\treturn Array.from( el.querySelectorAll( selector ) );\n\n}\n\n/**\n * classList.toggle() with cross browser support\n */\nexport const toggleClass = ( el, className, value ) => {\n\tif( value ) {\n\t\tel.classList.add( className );\n\t}\n\telse {\n\t\tel.classList.remove( className );\n\t}\n}\n\n/**\n * Utility for deserializing a value.\n *\n * @param {*} value\n * @return {*}\n */\nexport const deserialize = ( value ) => {\n\n\tif( typeof value === 'string' ) {\n\t\tif( value === 'null' ) return null;\n\t\telse if( value === 'true' ) return true;\n\t\telse if( value === 'false' ) return false;\n\t\telse if( value.match( /^-?[\\d\\.]+$/ ) ) return parseFloat( value );\n\t}\n\n\treturn value;\n\n}\n\n/**\n * Measures the distance in pixels between point a\n * and point b.\n *\n * @param {object} a point with x/y properties\n * @param {object} b point with x/y properties\n *\n * @return {number}\n */\nexport const distanceBetween = ( a, b ) => {\n\n\tlet dx = a.x - b.x,\n\t\tdy = a.y - b.y;\n\n\treturn Math.sqrt( dx*dx + dy*dy );\n\n}\n\n/**\n * Applies a CSS transform to the target element.\n *\n * @param {HTMLElement} element\n * @param {string} transform\n */\nexport const transformElement = ( element, transform ) => {\n\n\telement.style.transform = transform;\n\n}\n\n/**\n * Element.matches with IE support.\n *\n * @param {HTMLElement} target The element to match\n * @param {String} selector The CSS selector to match\n * the element against\n *\n * @return {Boolean}\n */\nexport const matches = ( target, selector ) => {\n\n\tlet matchesMethod = target.matches || target.matchesSelector || target.msMatchesSelector;\n\n\treturn !!( matchesMethod && matchesMethod.call( target, selector ) );\n\n}\n\n/**\n * Find the closest parent that matches the given\n * selector.\n *\n * @param {HTMLElement} target The child element\n * @param {String} selector The CSS selector to match\n * the parents against\n *\n * @return {HTMLElement} The matched parent or null\n * if no matching parent was found\n */\nexport const closest = ( target, selector ) => {\n\n\t// Native Element.closest\n\tif( typeof target.closest === 'function' ) {\n\t\treturn target.closest( selector );\n\t}\n\n\t// Polyfill\n\twhile( target ) {\n\t\tif( matches( target, selector ) ) {\n\t\t\treturn target;\n\t\t}\n\n\t\t// Keep searching\n\t\ttarget = target.parentNode;\n\t}\n\n\treturn null;\n\n}\n\n/**\n * Handling the fullscreen functionality via the fullscreen API\n *\n * @see http://fullscreen.spec.whatwg.org/\n * @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode\n */\nexport const enterFullscreen = element => {\n\n\telement = element || document.documentElement;\n\n\t// Check which implementation is available\n\tlet requestMethod = element.requestFullscreen ||\n\t\t\t\t\t\telement.webkitRequestFullscreen ||\n\t\t\t\t\t\telement.webkitRequestFullScreen ||\n\t\t\t\t\t\telement.mozRequestFullScreen ||\n\t\t\t\t\t\telement.msRequestFullscreen;\n\n\tif( requestMethod ) {\n\t\trequestMethod.apply( element );\n\t}\n\n}\n\n/**\n * Creates an HTML element and returns a reference to it.\n * If the element already exists the existing instance will\n * be returned.\n *\n * @param {HTMLElement} container\n * @param {string} tagname\n * @param {string} classname\n * @param {string} innerHTML\n *\n * @return {HTMLElement}\n */\nexport const createSingletonNode = ( container, tagname, classname, innerHTML='' ) => {\n\n\t// Find all nodes matching the description\n\tlet nodes = container.querySelectorAll( '.' + classname );\n\n\t// Check all matches to find one which is a direct child of\n\t// the specified container\n\tfor( let i = 0; i < nodes.length; i++ ) {\n\t\tlet testNode = nodes[i];\n\t\tif( testNode.parentNode === container ) {\n\t\t\treturn testNode;\n\t\t}\n\t}\n\n\t// If no node was found, create it now\n\tlet node = document.createElement( tagname );\n\tnode.className = classname;\n\tnode.innerHTML = innerHTML;\n\tcontainer.appendChild( node );\n\n\treturn node;\n\n}\n\n/**\n * Injects the given CSS styles into the DOM.\n *\n * @param {string} value\n */\nexport const createStyleSheet = ( value ) => {\n\n\tlet tag = document.createElement( 'style' );\n\ttag.type = 'text/css';\n\n\tif( value && value.length > 0 ) {\n\t\tif( tag.styleSheet ) {\n\t\t\ttag.styleSheet.cssText = value;\n\t\t}\n\t\telse {\n\t\t\ttag.appendChild( document.createTextNode( value ) );\n\t\t}\n\t}\n\n\tdocument.head.appendChild( tag );\n\n\treturn tag;\n\n}\n\n/**\n * Returns a key:value hash of all query params.\n */\nexport const getQueryHash = () => {\n\n\tlet query = {};\n\n\tlocation.search.replace( /[A-Z0-9]+?=([\\w\\.%-]*)/gi, a => {\n\t\tquery[ a.split( '=' ).shift() ] = a.split( '=' ).pop();\n\t} );\n\n\t// Basic deserialization\n\tfor( let i in query ) {\n\t\tlet value = query[ i ];\n\n\t\tquery[ i ] = deserialize( unescape( value ) );\n\t}\n\n\t// Do not accept new dependencies via query config to avoid\n\t// the potential of malicious script injection\n\tif( typeof query['dependencies'] !== 'undefined' ) delete query['dependencies'];\n\n\treturn query;\n\n}\n\n/**\n * Returns the remaining height within the parent of the\n * target element.\n *\n * remaining height = [ configured parent height ] - [ current parent height ]\n *\n * @param {HTMLElement} element\n * @param {number} [height]\n */\nexport const getRemainingHeight = ( element, height = 0 ) => {\n\n\tif( element ) {\n\t\tlet newHeight, oldHeight = element.style.height;\n\n\t\t// Change the .stretch element height to 0 in order find the height of all\n\t\t// the other elements\n\t\telement.style.height = '0px';\n\n\t\t// In Overview mode, the parent (.slide) height is set of 700px.\n\t\t// Restore it temporarily to its natural height.\n\t\telement.parentNode.style.height = 'auto';\n\n\t\tnewHeight = height - element.parentNode.offsetHeight;\n\n\t\t// Restore the old height, just in case\n\t\telement.style.height = oldHeight + 'px';\n\n\t\t// Clear the parent (.slide) height. .removeProperty works in IE9+\n\t\telement.parentNode.style.removeProperty('height');\n\n\t\treturn newHeight;\n\t}\n\n\treturn height;\n\n}\n\nconst fileExtensionToMimeMap = {\n\t'mp4': 'video/mp4',\n\t'm4a': 'video/mp4',\n\t'ogv': 'video/ogg',\n\t'mpeg': 'video/mpeg',\n\t'webm': 'video/webm'\n}\n\n/**\n * Guess the MIME type for common file formats.\n */\nexport const getMimeTypeFromFile = ( filename='' ) => {\n\treturn fileExtensionToMimeMap[filename.split('.').pop()]\n}\n\n/**\n * Encodes a string for RFC3986-compliant URL format.\n * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI#encoding_for_rfc3986\n *\n * @param {string} url\n */\nexport const encodeRFC3986URI = ( url='' ) => {\n\treturn encodeURI(url)\n\t .replace(/%5B/g, \"[\")\n\t .replace(/%5D/g, \"]\")\n\t .replace(\n\t\t/[!'()*]/g,\n\t\t(c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`\n\t );\n}","const UA = navigator.userAgent;\n\nexport const isMobile = /(iphone|ipod|ipad|android)/gi.test( UA ) ||\n\t\t\t\t\t\t( navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1 ); // iPadOS\n\nexport const isChrome = /chrome/i.test( UA ) && !/edge/i.test( UA );\n\nexport const isAndroid = /android/gi.test( UA );","/**\n * fitty v2.3.7 - Snugly resizes text to fit its parent container\n * Copyright (c) 2023 Rik Schennink (https://pqina.nl/)\n */\n\nvar e=function(e){if(e){var t=function(e){return[].slice.call(e)},n=0,i=1,r=2,o=3,a=[],l=null,u=\"requestAnimationFrame\"in e?function(){e.cancelAnimationFrame(l),l=e.requestAnimationFrame((function(){return s(a.filter((function(e){return e.dirty&&e.active})))}))}:function(){},c=function(e){return function(){a.forEach((function(t){return t.dirty=e})),u()}},s=function(e){e.filter((function(e){return!e.styleComputed})).forEach((function(e){e.styleComputed=m(e)})),e.filter(y).forEach(v);var t=e.filter(p);t.forEach(d),t.forEach((function(e){v(e),f(e)})),t.forEach(S)},f=function(e){return e.dirty=n},d=function(e){e.availableWidth=e.element.parentNode.clientWidth,e.currentWidth=e.element.scrollWidth,e.previousFontSize=e.currentFontSize,e.currentFontSize=Math.min(Math.max(e.minSize,e.availableWidth/e.currentWidth*e.previousFontSize),e.maxSize),e.whiteSpace=e.multiLine&&e.currentFontSize===e.minSize?\"normal\":\"nowrap\"},p=function(e){return e.dirty!==r||e.dirty===r&&e.element.parentNode.clientWidth!==e.availableWidth},m=function(t){var n=e.getComputedStyle(t.element,null);return t.currentFontSize=parseFloat(n.getPropertyValue(\"font-size\")),t.display=n.getPropertyValue(\"display\"),t.whiteSpace=n.getPropertyValue(\"white-space\"),!0},y=function(e){var t=!1;return!e.preStyleTestCompleted&&(/inline-/.test(e.display)||(t=!0,e.display=\"inline-block\"),\"nowrap\"!==e.whiteSpace&&(t=!0,e.whiteSpace=\"nowrap\"),e.preStyleTestCompleted=!0,t)},v=function(e){e.element.style.whiteSpace=e.whiteSpace,e.element.style.display=e.display,e.element.style.fontSize=e.currentFontSize+\"px\"},S=function(e){e.element.dispatchEvent(new CustomEvent(\"fit\",{detail:{oldValue:e.previousFontSize,newValue:e.currentFontSize,scaleFactor:e.currentFontSize/e.previousFontSize}}))},h=function(e,t){return function(){e.dirty=t,e.active&&u()}},w=function(e){return function(){a=a.filter((function(t){return t.element!==e.element})),e.observeMutations&&e.observer.disconnect(),e.element.style.whiteSpace=e.originalStyle.whiteSpace,e.element.style.display=e.originalStyle.display,e.element.style.fontSize=e.originalStyle.fontSize}},b=function(e){return function(){e.active||(e.active=!0,u())}},z=function(e){return function(){return e.active=!1}},F=function(e){e.observeMutations&&(e.observer=new MutationObserver(h(e,i)),e.observer.observe(e.element,e.observeMutations))},g={minSize:16,maxSize:512,multiLine:!0,observeMutations:\"MutationObserver\"in e&&{subtree:!0,childList:!0,characterData:!0}},W=null,E=function(){e.clearTimeout(W),W=e.setTimeout(c(r),x.observeWindowDelay)},M=[\"resize\",\"orientationchange\"];return Object.defineProperty(x,\"observeWindow\",{set:function(t){var n=\"\".concat(t?\"add\":\"remove\",\"EventListener\");M.forEach((function(t){e[n](t,E)}))}}),x.observeWindow=!0,x.observeWindowDelay=100,x.fitAll=c(o),x}function C(e,t){var n=Object.assign({},g,t),i=e.map((function(e){var t=Object.assign({},n,{element:e,active:!0});return function(e){e.originalStyle={whiteSpace:e.element.style.whiteSpace,display:e.element.style.display,fontSize:e.element.style.fontSize},F(e),e.newbie=!0,e.dirty=!0,a.push(e)}(t),{element:e,fit:h(t,o),unfreeze:b(t),freeze:z(t),unsubscribe:w(t)}}));return u(),i}function x(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return\"string\"==typeof e?C(t(document.querySelectorAll(e)),n):C([e],n)[0]}}(\"undefined\"==typeof window?null:window);export default e;\n","import { extend, queryAll, closest, getMimeTypeFromFile, encodeRFC3986URI } from '../utils/util.js'\nimport { isMobile } from '../utils/device.js'\n\nimport fitty from 'fitty';\n\n/**\n * Handles loading, unloading and playback of slide\n * content such as images, videos and iframes.\n */\nexport default class SlideContent {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.startEmbeddedIframe = this.startEmbeddedIframe.bind( this );\n\n\t}\n\n\t/**\n\t * Should the given element be preloaded?\n\t * Decides based on local element attributes and global config.\n\t *\n\t * @param {HTMLElement} element\n\t */\n\tshouldPreload( element ) {\n\n\t\tif( this.Reveal.isScrollView() ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Prefer an explicit global preload setting\n\t\tlet preload = this.Reveal.getConfig().preloadIframes;\n\n\t\t// If no global setting is available, fall back on the element's\n\t\t// own preload setting\n\t\tif( typeof preload !== 'boolean' ) {\n\t\t\tpreload = element.hasAttribute( 'data-preload' );\n\t\t}\n\n\t\treturn preload;\n\t}\n\n\t/**\n\t * Called when the given slide is within the configured view\n\t * distance. Shows the slide element and loads any content\n\t * that is set to load lazily (data-src).\n\t *\n\t * @param {HTMLElement} slide Slide to show\n\t */\n\tload( slide, options = {} ) {\n\n\t\t// Show the slide element\n\t\tslide.style.display = this.Reveal.getConfig().display;\n\n\t\t// Media elements with data-src attributes\n\t\tqueryAll( slide, 'img[data-src], video[data-src], audio[data-src], iframe[data-src]' ).forEach( element => {\n\t\t\tif( element.tagName !== 'IFRAME' || this.shouldPreload( element ) ) {\n\t\t\t\telement.setAttribute( 'src', element.getAttribute( 'data-src' ) );\n\t\t\t\telement.setAttribute( 'data-lazy-loaded', '' );\n\t\t\t\telement.removeAttribute( 'data-src' );\n\t\t\t}\n\t\t} );\n\n\t\t// Media elements with children\n\t\tqueryAll( slide, 'video, audio' ).forEach( media => {\n\t\t\tlet sources = 0;\n\n\t\t\tqueryAll( media, 'source[data-src]' ).forEach( source => {\n\t\t\t\tsource.setAttribute( 'src', source.getAttribute( 'data-src' ) );\n\t\t\t\tsource.removeAttribute( 'data-src' );\n\t\t\t\tsource.setAttribute( 'data-lazy-loaded', '' );\n\t\t\t\tsources += 1;\n\t\t\t} );\n\n\t\t\t// Enable inline video playback in mobile Safari\n\t\t\tif( isMobile && media.tagName === 'VIDEO' ) {\n\t\t\t\tmedia.setAttribute( 'playsinline', '' );\n\t\t\t}\n\n\t\t\t// If we rewrote sources for this video/audio element, we need\n\t\t\t// to manually tell it to load from its new origin\n\t\t\tif( sources > 0 ) {\n\t\t\t\tmedia.load();\n\t\t\t}\n\t\t} );\n\n\n\t\t// Show the corresponding background element\n\t\tlet background = slide.slideBackgroundElement;\n\t\tif( background ) {\n\t\t\tbackground.style.display = 'block';\n\n\t\t\tlet backgroundContent = slide.slideBackgroundContentElement;\n\t\t\tlet backgroundIframe = slide.getAttribute( 'data-background-iframe' );\n\n\t\t\t// If the background contains media, load it\n\t\t\tif( background.hasAttribute( 'data-loaded' ) === false ) {\n\t\t\t\tbackground.setAttribute( 'data-loaded', 'true' );\n\n\t\t\t\tlet backgroundImage = slide.getAttribute( 'data-background-image' ),\n\t\t\t\t\tbackgroundVideo = slide.getAttribute( 'data-background-video' ),\n\t\t\t\t\tbackgroundVideoLoop = slide.hasAttribute( 'data-background-video-loop' ),\n\t\t\t\t\tbackgroundVideoMuted = slide.hasAttribute( 'data-background-video-muted' );\n\n\t\t\t\t// Images\n\t\t\t\tif( backgroundImage ) {\n\t\t\t\t\t// base64\n\t\t\t\t\tif( /^data:/.test( backgroundImage.trim() ) ) {\n\t\t\t\t\t\tbackgroundContent.style.backgroundImage = `url(${backgroundImage.trim()})`;\n\t\t\t\t\t}\n\t\t\t\t\t// URL(s)\n\t\t\t\t\telse {\n\t\t\t\t\t\tbackgroundContent.style.backgroundImage = backgroundImage.split( ',' ).map( background => {\n\t\t\t\t\t\t\t// Decode URL(s) that are already encoded first\n\t\t\t\t\t\t\tlet decoded = decodeURI(background.trim());\n\t\t\t\t\t\t\treturn `url(${encodeRFC3986URI(decoded)})`;\n\t\t\t\t\t\t}).join( ',' );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\t// Videos\n\t\t\t\telse if ( backgroundVideo && !this.Reveal.isSpeakerNotes() ) {\n\t\t\t\t\tlet video = document.createElement( 'video' );\n\n\t\t\t\t\tif( backgroundVideoLoop ) {\n\t\t\t\t\t\tvideo.setAttribute( 'loop', '' );\n\t\t\t\t\t}\n\n\t\t\t\t\tif( backgroundVideoMuted ) {\n\t\t\t\t\t\tvideo.muted = true;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Enable inline playback in mobile Safari\n\t\t\t\t\t//\n\t\t\t\t\t// Mute is required for video to play when using\n\t\t\t\t\t// swipe gestures to navigate since they don't\n\t\t\t\t\t// count as direct user actions :'(\n\t\t\t\t\tif( isMobile ) {\n\t\t\t\t\t\tvideo.muted = true;\n\t\t\t\t\t\tvideo.setAttribute( 'playsinline', '' );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Support comma separated lists of video sources\n\t\t\t\t\tbackgroundVideo.split( ',' ).forEach( source => {\n\t\t\t\t\t\tconst sourceElement = document.createElement( 'source' );\n\t\t\t\t\t\tsourceElement.setAttribute( 'src', source );\n\n\t\t\t\t\t\tlet type = getMimeTypeFromFile( source );\n\t\t\t\t\t\tif( type ) {\n\t\t\t\t\t\t\tsourceElement.setAttribute( 'type', type );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvideo.appendChild( sourceElement );\n\t\t\t\t\t} );\n\n\t\t\t\t\tbackgroundContent.appendChild( video );\n\t\t\t\t}\n\t\t\t\t// Iframes\n\t\t\t\telse if( backgroundIframe && options.excludeIframes !== true ) {\n\t\t\t\t\tlet iframe = document.createElement( 'iframe' );\n\t\t\t\t\tiframe.setAttribute( 'allowfullscreen', '' );\n\t\t\t\t\tiframe.setAttribute( 'mozallowfullscreen', '' );\n\t\t\t\t\tiframe.setAttribute( 'webkitallowfullscreen', '' );\n\t\t\t\t\tiframe.setAttribute( 'allow', 'autoplay' );\n\n\t\t\t\t\tiframe.setAttribute( 'data-src', backgroundIframe );\n\n\t\t\t\t\tiframe.style.width = '100%';\n\t\t\t\t\tiframe.style.height = '100%';\n\t\t\t\t\tiframe.style.maxHeight = '100%';\n\t\t\t\t\tiframe.style.maxWidth = '100%';\n\n\t\t\t\t\tbackgroundContent.appendChild( iframe );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Start loading preloadable iframes\n\t\t\tlet backgroundIframeElement = backgroundContent.querySelector( 'iframe[data-src]' );\n\t\t\tif( backgroundIframeElement ) {\n\n\t\t\t\t// Check if this iframe is eligible to be preloaded\n\t\t\t\tif( this.shouldPreload( background ) && !/autoplay=(1|true|yes)/gi.test( backgroundIframe ) ) {\n\t\t\t\t\tif( backgroundIframeElement.getAttribute( 'src' ) !== backgroundIframe ) {\n\t\t\t\t\t\tbackgroundIframeElement.setAttribute( 'src', backgroundIframe );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.layout( slide );\n\n\t}\n\n\t/**\n\t * Applies JS-dependent layout helpers for the scope.\n\t */\n\tlayout( scopeElement ) {\n\n\t\t// Autosize text with the r-fit-text class based on the\n\t\t// size of its container. This needs to happen after the\n\t\t// slide is visible in order to measure the text.\n\t\tArray.from( scopeElement.querySelectorAll( '.r-fit-text' ) ).forEach( element => {\n\t\t\tfitty( element, {\n\t\t\t\tminSize: 24,\n\t\t\t\tmaxSize: this.Reveal.getConfig().height * 0.8,\n\t\t\t\tobserveMutations: false,\n\t\t\t\tobserveWindow: false\n\t\t\t} );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Unloads and hides the given slide. This is called when the\n\t * slide is moved outside of the configured view distance.\n\t *\n\t * @param {HTMLElement} slide\n\t */\n\tunload( slide ) {\n\n\t\t// Hide the slide element\n\t\tslide.style.display = 'none';\n\n\t\t// Hide the corresponding background element\n\t\tlet background = this.Reveal.getSlideBackground( slide );\n\t\tif( background ) {\n\t\t\tbackground.style.display = 'none';\n\n\t\t\t// Unload any background iframes\n\t\t\tqueryAll( background, 'iframe[src]' ).forEach( element => {\n\t\t\t\telement.removeAttribute( 'src' );\n\t\t\t} );\n\t\t}\n\n\t\t// Reset lazy-loaded media elements with src attributes\n\t\tqueryAll( slide, 'video[data-lazy-loaded][src], audio[data-lazy-loaded][src], iframe[data-lazy-loaded][src]' ).forEach( element => {\n\t\t\telement.setAttribute( 'data-src', element.getAttribute( 'src' ) );\n\t\t\telement.removeAttribute( 'src' );\n\t\t} );\n\n\t\t// Reset lazy-loaded media elements with children\n\t\tqueryAll( slide, 'video[data-lazy-loaded] source[src], audio source[src]' ).forEach( source => {\n\t\t\tsource.setAttribute( 'data-src', source.getAttribute( 'src' ) );\n\t\t\tsource.removeAttribute( 'src' );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Enforces origin-specific format rules for embedded media.\n\t */\n\tformatEmbeddedContent() {\n\n\t\tlet _appendParamToIframeSource = ( sourceAttribute, sourceURL, param ) => {\n\t\t\tqueryAll( this.Reveal.getSlidesElement(), 'iframe['+ sourceAttribute +'*=\"'+ sourceURL +'\"]' ).forEach( el => {\n\t\t\t\tlet src = el.getAttribute( sourceAttribute );\n\t\t\t\tif( src && src.indexOf( param ) === -1 ) {\n\t\t\t\t\tel.setAttribute( sourceAttribute, src + ( !/\\?/.test( src ) ? '?' : '&' ) + param );\n\t\t\t\t}\n\t\t\t});\n\t\t};\n\n\t\t// YouTube frames must include \"?enablejsapi=1\"\n\t\t_appendParamToIframeSource( 'src', 'youtube.com/embed/', 'enablejsapi=1' );\n\t\t_appendParamToIframeSource( 'data-src', 'youtube.com/embed/', 'enablejsapi=1' );\n\n\t\t// Vimeo frames must include \"?api=1\"\n\t\t_appendParamToIframeSource( 'src', 'player.vimeo.com/', 'api=1' );\n\t\t_appendParamToIframeSource( 'data-src', 'player.vimeo.com/', 'api=1' );\n\n\t}\n\n\t/**\n\t * Start playback of any embedded content inside of\n\t * the given element.\n\t *\n\t * @param {HTMLElement} element\n\t */\n\tstartEmbeddedContent( element ) {\n\n\t\tif( element && !this.Reveal.isSpeakerNotes() ) {\n\n\t\t\t// Restart GIFs\n\t\t\tqueryAll( element, 'img[src$=\".gif\"]' ).forEach( el => {\n\t\t\t\t// Setting the same unchanged source like this was confirmed\n\t\t\t\t// to work in Chrome, FF & Safari\n\t\t\t\tel.setAttribute( 'src', el.getAttribute( 'src' ) );\n\t\t\t} );\n\n\t\t\t// HTML5 media elements\n\t\t\tqueryAll( element, 'video, audio' ).forEach( el => {\n\t\t\t\tif( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Prefer an explicit global autoplay setting\n\t\t\t\tlet autoplay = this.Reveal.getConfig().autoPlayMedia;\n\n\t\t\t\t// If no global setting is available, fall back on the element's\n\t\t\t\t// own autoplay setting\n\t\t\t\tif( typeof autoplay !== 'boolean' ) {\n\t\t\t\t\tautoplay = el.hasAttribute( 'data-autoplay' ) || !!closest( el, '.slide-background' );\n\t\t\t\t}\n\n\t\t\t\tif( autoplay && typeof el.play === 'function' ) {\n\n\t\t\t\t\t// If the media is ready, start playback\n\t\t\t\t\tif( el.readyState > 1 ) {\n\t\t\t\t\t\tthis.startEmbeddedMedia( { target: el } );\n\t\t\t\t\t}\n\t\t\t\t\t// Mobile devices never fire a loaded event so instead\n\t\t\t\t\t// of waiting, we initiate playback\n\t\t\t\t\telse if( isMobile ) {\n\t\t\t\t\t\tlet promise = el.play();\n\n\t\t\t\t\t\t// If autoplay does not work, ensure that the controls are visible so\n\t\t\t\t\t\t// that the viewer can start the media on their own\n\t\t\t\t\t\tif( promise && typeof promise.catch === 'function' && el.controls === false ) {\n\t\t\t\t\t\t\tpromise.catch( () => {\n\t\t\t\t\t\t\t\tel.controls = true;\n\n\t\t\t\t\t\t\t\t// Once the video does start playing, hide the controls again\n\t\t\t\t\t\t\t\tel.addEventListener( 'play', () => {\n\t\t\t\t\t\t\t\t\tel.controls = false;\n\t\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\t// If the media isn't loaded, wait before playing\n\t\t\t\t\telse {\n\t\t\t\t\t\tel.removeEventListener( 'loadeddata', this.startEmbeddedMedia ); // remove first to avoid dupes\n\t\t\t\t\t\tel.addEventListener( 'loadeddata', this.startEmbeddedMedia );\n\t\t\t\t\t}\n\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t// Normal iframes\n\t\t\tqueryAll( element, 'iframe[src]' ).forEach( el => {\n\t\t\t\tif( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis.startEmbeddedIframe( { target: el } );\n\t\t\t} );\n\n\t\t\t// Lazy loading iframes\n\t\t\tqueryAll( element, 'iframe[data-src]' ).forEach( el => {\n\t\t\t\tif( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif( el.getAttribute( 'src' ) !== el.getAttribute( 'data-src' ) ) {\n\t\t\t\t\tel.removeEventListener( 'load', this.startEmbeddedIframe ); // remove first to avoid dupes\n\t\t\t\t\tel.addEventListener( 'load', this.startEmbeddedIframe );\n\t\t\t\t\tel.setAttribute( 'src', el.getAttribute( 'data-src' ) );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Starts playing an embedded video/audio element after\n\t * it has finished loading.\n\t *\n\t * @param {object} event\n\t */\n\tstartEmbeddedMedia( event ) {\n\n\t\tlet isAttachedToDOM = !!closest( event.target, 'html' ),\n\t\t\tisVisible \t\t= !!closest( event.target, '.present' );\n\n\t\tif( isAttachedToDOM && isVisible ) {\n\t\t\tevent.target.currentTime = 0;\n\t\t\tevent.target.play();\n\t\t}\n\n\t\tevent.target.removeEventListener( 'loadeddata', this.startEmbeddedMedia );\n\n\t}\n\n\t/**\n\t * \"Starts\" the content of an embedded iframe using the\n\t * postMessage API.\n\t *\n\t * @param {object} event\n\t */\n\tstartEmbeddedIframe( event ) {\n\n\t\tlet iframe = event.target;\n\n\t\tif( iframe && iframe.contentWindow ) {\n\n\t\t\tlet isAttachedToDOM = !!closest( event.target, 'html' ),\n\t\t\t\tisVisible \t\t= !!closest( event.target, '.present' );\n\n\t\t\tif( isAttachedToDOM && isVisible ) {\n\n\t\t\t\t// Prefer an explicit global autoplay setting\n\t\t\t\tlet autoplay = this.Reveal.getConfig().autoPlayMedia;\n\n\t\t\t\t// If no global setting is available, fall back on the element's\n\t\t\t\t// own autoplay setting\n\t\t\t\tif( typeof autoplay !== 'boolean' ) {\n\t\t\t\t\tautoplay = iframe.hasAttribute( 'data-autoplay' ) || !!closest( iframe, '.slide-background' );\n\t\t\t\t}\n\n\t\t\t\t// YouTube postMessage API\n\t\t\t\tif( /youtube\\.com\\/embed\\//.test( iframe.getAttribute( 'src' ) ) && autoplay ) {\n\t\t\t\t\tiframe.contentWindow.postMessage( '{\"event\":\"command\",\"func\":\"playVideo\",\"args\":\"\"}', '*' );\n\t\t\t\t}\n\t\t\t\t// Vimeo postMessage API\n\t\t\t\telse if( /player\\.vimeo\\.com\\//.test( iframe.getAttribute( 'src' ) ) && autoplay ) {\n\t\t\t\t\tiframe.contentWindow.postMessage( '{\"method\":\"play\"}', '*' );\n\t\t\t\t}\n\t\t\t\t// Generic postMessage API\n\t\t\t\telse {\n\t\t\t\t\tiframe.contentWindow.postMessage( 'slide:start', '*' );\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Stop playback of any embedded content inside of\n\t * the targeted slide.\n\t *\n\t * @param {HTMLElement} element\n\t */\n\tstopEmbeddedContent( element, options = {} ) {\n\n\t\toptions = extend( {\n\t\t\t// Defaults\n\t\t\tunloadIframes: true\n\t\t}, options );\n\n\t\tif( element && element.parentNode ) {\n\t\t\t// HTML5 media elements\n\t\t\tqueryAll( element, 'video, audio' ).forEach( el => {\n\t\t\t\tif( !el.hasAttribute( 'data-ignore' ) && typeof el.pause === 'function' ) {\n\t\t\t\t\tel.setAttribute('data-paused-by-reveal', '');\n\t\t\t\t\tel.pause();\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t// Generic postMessage API for non-lazy loaded iframes\n\t\t\tqueryAll( element, 'iframe' ).forEach( el => {\n\t\t\t\tif( el.contentWindow ) el.contentWindow.postMessage( 'slide:stop', '*' );\n\t\t\t\tel.removeEventListener( 'load', this.startEmbeddedIframe );\n\t\t\t});\n\n\t\t\t// YouTube postMessage API\n\t\t\tqueryAll( element, 'iframe[src*=\"youtube.com/embed/\"]' ).forEach( el => {\n\t\t\t\tif( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) {\n\t\t\t\t\tel.contentWindow.postMessage( '{\"event\":\"command\",\"func\":\"pauseVideo\",\"args\":\"\"}', '*' );\n\t\t\t\t}\n\t\t\t});\n\n\t\t\t// Vimeo postMessage API\n\t\t\tqueryAll( element, 'iframe[src*=\"player.vimeo.com/\"]' ).forEach( el => {\n\t\t\t\tif( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) {\n\t\t\t\t\tel.contentWindow.postMessage( '{\"method\":\"pause\"}', '*' );\n\t\t\t\t}\n\t\t\t});\n\n\t\t\tif( options.unloadIframes === true ) {\n\t\t\t\t// Unload lazy-loaded iframes\n\t\t\t\tqueryAll( element, 'iframe[data-src]' ).forEach( el => {\n\t\t\t\t\t// Only removing the src doesn't actually unload the frame\n\t\t\t\t\t// in all browsers (Firefox) so we set it to blank first\n\t\t\t\t\tel.setAttribute( 'src', 'about:blank' );\n\t\t\t\t\tel.removeAttribute( 'src' );\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\n\t}\n\n}\n","\nexport const SLIDES_SELECTOR = '.slides section';\nexport const HORIZONTAL_SLIDES_SELECTOR = '.slides>section';\nexport const VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section';\nexport const HORIZONTAL_BACKGROUNDS_SELECTOR = '.backgrounds>.slide-background';\n\n// Methods that may not be invoked via the postMessage API\nexport const POST_MESSAGE_METHOD_BLACKLIST = /registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener|showPreview/;\n\n// Regex for retrieving the fragment style from a class attribute\nexport const FRAGMENT_STYLE_REGEX = /fade-(down|up|right|left|out|in-then-out|in-then-semi-out)|semi-fade-out|current-visible|shrink|grow/;\n\n// Slide number formats\nexport const SLIDE_NUMBER_FORMAT_HORIZONTAL_DOT_VERTICAL = 'h.v';\nexport const SLIDE_NUMBER_FORMAT_HORIZONTAL_SLASH_VERTICAL = 'h/v';\nexport const SLIDE_NUMBER_FORMAT_CURRENT = 'c';\nexport const SLIDE_NUMBER_FORMAT_CURRENT_SLASH_TOTAL = 'c/t';","import {\n\tSLIDE_NUMBER_FORMAT_CURRENT,\n\tSLIDE_NUMBER_FORMAT_CURRENT_SLASH_TOTAL,\n\tSLIDE_NUMBER_FORMAT_HORIZONTAL_DOT_VERTICAL,\n\tSLIDE_NUMBER_FORMAT_HORIZONTAL_SLASH_VERTICAL\n} from \"../utils/constants\";\n\n/**\n * Handles the display of reveal.js' optional slide number.\n */\nexport default class SlideNumber {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\trender() {\n\n\t\tthis.element = document.createElement( 'div' );\n\t\tthis.element.className = 'slide-number';\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tlet slideNumberDisplay = 'none';\n\t\tif( config.slideNumber && !this.Reveal.isPrintView() ) {\n\t\t\tif( config.showSlideNumber === 'all' ) {\n\t\t\t\tslideNumberDisplay = 'block';\n\t\t\t}\n\t\t\telse if( config.showSlideNumber === 'speaker' && this.Reveal.isSpeakerNotes() ) {\n\t\t\t\tslideNumberDisplay = 'block';\n\t\t\t}\n\t\t}\n\n\t\tthis.element.style.display = slideNumberDisplay;\n\n\t}\n\n\t/**\n\t * Updates the slide number to match the current slide.\n\t */\n\tupdate() {\n\n\t\t// Update slide number if enabled\n\t\tif( this.Reveal.getConfig().slideNumber && this.element ) {\n\t\t\tthis.element.innerHTML = this.getSlideNumber();\n\t\t}\n\n\t}\n\n\t/**\n\t * Returns the HTML string corresponding to the current slide\n\t * number, including formatting.\n\t */\n\tgetSlideNumber( slide = this.Reveal.getCurrentSlide() ) {\n\n\t\tlet config = this.Reveal.getConfig();\n\t\tlet value;\n\t\tlet format = SLIDE_NUMBER_FORMAT_HORIZONTAL_DOT_VERTICAL;\n\n\t\tif ( typeof config.slideNumber === 'function' ) {\n\t\t\tvalue = config.slideNumber( slide );\n\t\t} else {\n\t\t\t// Check if a custom number format is available\n\t\t\tif( typeof config.slideNumber === 'string' ) {\n\t\t\t\tformat = config.slideNumber;\n\t\t\t}\n\n\t\t\t// If there are ONLY vertical slides in this deck, always use\n\t\t\t// a flattened slide number\n\t\t\tif( !/c/.test( format ) && this.Reveal.getHorizontalSlides().length === 1 ) {\n\t\t\t\tformat = SLIDE_NUMBER_FORMAT_CURRENT;\n\t\t\t}\n\n\t\t\t// Offset the current slide number by 1 to make it 1-indexed\n\t\t\tlet horizontalOffset = slide && slide.dataset.visibility === 'uncounted' ? 0 : 1;\n\n\t\t\tvalue = [];\n\t\t\tswitch( format ) {\n\t\t\t\tcase SLIDE_NUMBER_FORMAT_CURRENT:\n\t\t\t\t\tvalue.push( this.Reveal.getSlidePastCount( slide ) + horizontalOffset );\n\t\t\t\t\tbreak;\n\t\t\t\tcase SLIDE_NUMBER_FORMAT_CURRENT_SLASH_TOTAL:\n\t\t\t\t\tvalue.push( this.Reveal.getSlidePastCount( slide ) + horizontalOffset, '/', this.Reveal.getTotalSlides() );\n\t\t\t\t\tbreak;\n\t\t\t\tdefault:\n\t\t\t\t\tlet indices = this.Reveal.getIndices( slide );\n\t\t\t\t\tvalue.push( indices.h + horizontalOffset );\n\t\t\t\t\tlet sep = format === SLIDE_NUMBER_FORMAT_HORIZONTAL_SLASH_VERTICAL ? '/' : '.';\n\t\t\t\t\tif( this.Reveal.isVerticalSlide( slide ) ) value.push( sep, indices.v + 1 );\n\t\t\t}\n\t\t}\n\n\t\tlet url = '#' + this.Reveal.location.getHash( slide );\n\t\treturn this.formatNumber( value[0], value[1], value[2], url );\n\n\t}\n\n\t/**\n\t * Applies HTML formatting to a slide number before it's\n\t * written to the DOM.\n\t *\n\t * @param {number} a Current slide\n\t * @param {string} delimiter Character to separate slide numbers\n\t * @param {(number|*)} b Total slides\n\t * @param {HTMLElement} [url='#'+locationHash()] The url to link to\n\t * @return {string} HTML string fragment\n\t */\n\tformatNumber( a, delimiter, b, url = '#' + this.Reveal.location.getHash() ) {\n\n\t\tif( typeof b === 'number' && !isNaN( b ) ) {\n\t\t\treturn `\n\t\t\t\t\t${a}\n\t\t\t\t\t${delimiter}\n\t\t\t\t\t${b}\n\t\t\t\t\t`;\n\t\t}\n\t\telse {\n\t\t\treturn `\n\t\t\t\t\t${a}\n\t\t\t\t\t`;\n\t\t}\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.element.remove();\n\n\t}\n\n}","import {\n\tSLIDE_NUMBER_FORMAT_CURRENT,\n\tSLIDE_NUMBER_FORMAT_CURRENT_SLASH_TOTAL\n} from \"../utils/constants\";\n\n/**\n * Makes it possible to jump to a slide by entering its\n * slide number or id.\n */\nexport default class JumpToSlide {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.onInput = this.onInput.bind( this );\n\t\tthis.onBlur = this.onBlur.bind( this );\n\t\tthis.onKeyDown = this.onKeyDown.bind( this );\n\n\t}\n\n\trender() {\n\n\t\tthis.element = document.createElement( 'div' );\n\t\tthis.element.className = 'jump-to-slide';\n\n this.jumpInput = document.createElement( 'input' );\n this.jumpInput.type = 'text';\n this.jumpInput.className = 'jump-to-slide-input';\n this.jumpInput.placeholder = 'Jump to slide';\n\t\tthis.jumpInput.addEventListener( 'input', this.onInput );\n\t\tthis.jumpInput.addEventListener( 'keydown', this.onKeyDown );\n\t\tthis.jumpInput.addEventListener( 'blur', this.onBlur );\n\n this.element.appendChild( this.jumpInput );\n\n\t}\n\n\tshow() {\n\n\t\tthis.indicesOnShow = this.Reveal.getIndices();\n\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\t\tthis.jumpInput.focus();\n\n\t}\n\n\thide() {\n\n\t\tif( this.isVisible() ) {\n\t\t\tthis.element.remove();\n\t\t\tthis.jumpInput.value = '';\n\n\t\t\tclearTimeout( this.jumpTimeout );\n\t\t\tdelete this.jumpTimeout;\n\t\t}\n\n\t}\n\n\tisVisible() {\n\n\t\treturn !!this.element.parentNode;\n\n\t}\n\n\t/**\n\t * Parses the current input and jumps to the given slide.\n\t */\n\tjump() {\n\n\t\tclearTimeout( this.jumpTimeout );\n\t\tdelete this.jumpTimeout;\n\n\t\tlet query = this.jumpInput.value.trim( '' );\n\t\tlet indices;\n\n\t\t// When slide numbers are formatted to be a single linear mumber\n\t\t// (instead of showing a separate horizontal/vertical index) we\n\t\t// use the same format for slide jumps\n\t\tif( /^\\d+$/.test( query ) ) {\n\t\t\tconst slideNumberFormat = this.Reveal.getConfig().slideNumber;\n\t\t\tif( slideNumberFormat === SLIDE_NUMBER_FORMAT_CURRENT || slideNumberFormat === SLIDE_NUMBER_FORMAT_CURRENT_SLASH_TOTAL ) {\n\t\t\t\tconst slide = this.Reveal.getSlides()[ parseInt( query, 10 ) - 1 ];\n\t\t\t\tif( slide ) {\n\t\t\t\t\tindices = this.Reveal.getIndices( slide );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif( !indices ) {\n\t\t\t// If the query uses \"horizontal.vertical\" format, convert to\n\t\t\t// \"horizontal/vertical\" so that our URL parser can understand\n\t\t\tif( /^\\d+\\.\\d+$/.test( query ) ) {\n\t\t\t\tquery = query.replace( '.', '/' );\n\t\t\t}\n\n\t\t\tindices = this.Reveal.location.getIndicesFromHash( query, { oneBasedIndex: true } );\n\t\t}\n\n\t\t// Still no valid index? Fall back on a text search\n\t\tif( !indices && /\\S+/i.test( query ) && query.length > 1 ) {\n\t\t\tindices = this.search( query );\n\t\t}\n\n\t\tif( indices && query !== '' ) {\n\t\t\tthis.Reveal.slide( indices.h, indices.v, indices.f );\n\t\t\treturn true;\n\t\t}\n\t\telse {\n\t\t\tthis.Reveal.slide( this.indicesOnShow.h, this.indicesOnShow.v, this.indicesOnShow.f );\n\t\t\treturn false;\n\t\t}\n\n\t}\n\n\tjumpAfter( delay ) {\n\n\t\tclearTimeout( this.jumpTimeout );\n\t\tthis.jumpTimeout = setTimeout( () => this.jump(), delay );\n\n\t}\n\n\t/**\n\t * A lofi search that looks for the given query in all\n\t * of our slides and returns the first match.\n\t */\n\tsearch( query ) {\n\n\t\tconst regex = new RegExp( '\\\\b' + query.trim() + '\\\\b', 'i' );\n\n\t\tconst slide = this.Reveal.getSlides().find( ( slide ) => {\n\t\t\treturn regex.test( slide.innerText );\n\t\t} );\n\n\t\tif( slide ) {\n\t\t\treturn this.Reveal.getIndices( slide );\n\t\t}\n\t\telse {\n\t\t\treturn null;\n\t\t}\n\n\t}\n\n\t/**\n\t * Reverts back to the slide we were on when jump to slide was\n\t * invoked.\n\t */\n\tcancel() {\n\n\t\tthis.Reveal.slide( this.indicesOnShow.h, this.indicesOnShow.v, this.indicesOnShow.f );\n\t\tthis.hide();\n\n\t}\n\n\tconfirm() {\n\n\t\tthis.jump();\n\t\tthis.hide();\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.jumpInput.removeEventListener( 'input', this.onInput );\n\t\tthis.jumpInput.removeEventListener( 'keydown', this.onKeyDown );\n\t\tthis.jumpInput.removeEventListener( 'blur', this.onBlur );\n\n\t\tthis.element.remove();\n\n\t}\n\n\tonKeyDown( event ) {\n\n\t\tif( event.keyCode === 13 ) {\n\t\t\tthis.confirm();\n\t\t}\n\t\telse if( event.keyCode === 27 ) {\n\t\t\tthis.cancel();\n\n\t\t\tevent.stopImmediatePropagation();\n\t\t}\n\n\t}\n\n\tonInput( event ) {\n\n\t\tthis.jumpAfter( 200 );\n\n\t}\n\n\tonBlur() {\n\n\t\tsetTimeout( () => this.hide(), 1 );\n\n\t}\n\n}","/**\n * Converts various color input formats to an {r:0,g:0,b:0} object.\n *\n * @param {string} color The string representation of a color\n * @example\n * colorToRgb('#000');\n * @example\n * colorToRgb('#000000');\n * @example\n * colorToRgb('rgb(0,0,0)');\n * @example\n * colorToRgb('rgba(0,0,0)');\n *\n * @return {{r: number, g: number, b: number, [a]: number}|null}\n */\nexport const colorToRgb = ( color ) => {\n\n\tlet hex3 = color.match( /^#([0-9a-f]{3})$/i );\n\tif( hex3 && hex3[1] ) {\n\t\thex3 = hex3[1];\n\t\treturn {\n\t\t\tr: parseInt( hex3.charAt( 0 ), 16 ) * 0x11,\n\t\t\tg: parseInt( hex3.charAt( 1 ), 16 ) * 0x11,\n\t\t\tb: parseInt( hex3.charAt( 2 ), 16 ) * 0x11\n\t\t};\n\t}\n\n\tlet hex6 = color.match( /^#([0-9a-f]{6})$/i );\n\tif( hex6 && hex6[1] ) {\n\t\thex6 = hex6[1];\n\t\treturn {\n\t\t\tr: parseInt( hex6.slice( 0, 2 ), 16 ),\n\t\t\tg: parseInt( hex6.slice( 2, 4 ), 16 ),\n\t\t\tb: parseInt( hex6.slice( 4, 6 ), 16 )\n\t\t};\n\t}\n\n\tlet rgb = color.match( /^rgb\\s*\\(\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*\\)$/i );\n\tif( rgb ) {\n\t\treturn {\n\t\t\tr: parseInt( rgb[1], 10 ),\n\t\t\tg: parseInt( rgb[2], 10 ),\n\t\t\tb: parseInt( rgb[3], 10 )\n\t\t};\n\t}\n\n\tlet rgba = color.match( /^rgba\\s*\\(\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*\\,\\s*([\\d]+|[\\d]*.[\\d]+)\\s*\\)$/i );\n\tif( rgba ) {\n\t\treturn {\n\t\t\tr: parseInt( rgba[1], 10 ),\n\t\t\tg: parseInt( rgba[2], 10 ),\n\t\t\tb: parseInt( rgba[3], 10 ),\n\t\t\ta: parseFloat( rgba[4] )\n\t\t};\n\t}\n\n\treturn null;\n\n}\n\n/**\n * Calculates brightness on a scale of 0-255.\n *\n * @param {string} color See colorToRgb for supported formats.\n * @see {@link colorToRgb}\n */\nexport const colorBrightness = ( color ) => {\n\n\tif( typeof color === 'string' ) color = colorToRgb( color );\n\n\tif( color ) {\n\t\treturn ( color.r * 299 + color.g * 587 + color.b * 114 ) / 1000;\n\t}\n\n\treturn null;\n\n}","import { queryAll } from '../utils/util.js'\nimport { colorToRgb, colorBrightness } from '../utils/color.js'\n\n/**\n * Creates and updates slide backgrounds.\n */\nexport default class Backgrounds {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\trender() {\n\n\t\tthis.element = document.createElement( 'div' );\n\t\tthis.element.className = 'backgrounds';\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\n\t}\n\n\t/**\n\t * Creates the slide background elements and appends them\n\t * to the background container. One element is created per\n\t * slide no matter if the given slide has visible background.\n\t */\n\tcreate() {\n\n\t\t// Clear prior backgrounds\n\t\tthis.element.innerHTML = '';\n\t\tthis.element.classList.add( 'no-transition' );\n\n\t\t// Iterate over all horizontal slides\n\t\tthis.Reveal.getHorizontalSlides().forEach( slideh => {\n\n\t\t\tlet backgroundStack = this.createBackground( slideh, this.element );\n\n\t\t\t// Iterate over all vertical slides\n\t\t\tqueryAll( slideh, 'section' ).forEach( slidev => {\n\n\t\t\t\tthis.createBackground( slidev, backgroundStack );\n\n\t\t\t\tbackgroundStack.classList.add( 'stack' );\n\n\t\t\t} );\n\n\t\t} );\n\n\t\t// Add parallax background if specified\n\t\tif( this.Reveal.getConfig().parallaxBackgroundImage ) {\n\n\t\t\tthis.element.style.backgroundImage = 'url(\"' + this.Reveal.getConfig().parallaxBackgroundImage + '\")';\n\t\t\tthis.element.style.backgroundSize = this.Reveal.getConfig().parallaxBackgroundSize;\n\t\t\tthis.element.style.backgroundRepeat = this.Reveal.getConfig().parallaxBackgroundRepeat;\n\t\t\tthis.element.style.backgroundPosition = this.Reveal.getConfig().parallaxBackgroundPosition;\n\n\t\t\t// Make sure the below properties are set on the element - these properties are\n\t\t\t// needed for proper transitions to be set on the element via CSS. To remove\n\t\t\t// annoying background slide-in effect when the presentation starts, apply\n\t\t\t// these properties after short time delay\n\t\t\tsetTimeout( () => {\n\t\t\t\tthis.Reveal.getRevealElement().classList.add( 'has-parallax-background' );\n\t\t\t}, 1 );\n\n\t\t}\n\t\telse {\n\n\t\t\tthis.element.style.backgroundImage = '';\n\t\t\tthis.Reveal.getRevealElement().classList.remove( 'has-parallax-background' );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Creates a background for the given slide.\n\t *\n\t * @param {HTMLElement} slide\n\t * @param {HTMLElement} container The element that the background\n\t * should be appended to\n\t * @return {HTMLElement} New background div\n\t */\n\tcreateBackground( slide, container ) {\n\n\t\t// Main slide background element\n\t\tlet element = document.createElement( 'div' );\n\t\telement.className = 'slide-background ' + slide.className.replace( /present|past|future/, '' );\n\n\t\t// Inner background element that wraps images/videos/iframes\n\t\tlet contentElement = document.createElement( 'div' );\n\t\tcontentElement.className = 'slide-background-content';\n\n\t\telement.appendChild( contentElement );\n\t\tcontainer.appendChild( element );\n\n\t\tslide.slideBackgroundElement = element;\n\t\tslide.slideBackgroundContentElement = contentElement;\n\n\t\t// Syncs the background to reflect all current background settings\n\t\tthis.sync( slide );\n\n\t\treturn element;\n\n\t}\n\n\t/**\n\t * Renders all of the visual properties of a slide background\n\t * based on the various background attributes.\n\t *\n\t * @param {HTMLElement} slide\n\t */\n\tsync( slide ) {\n\n\t\tconst element = slide.slideBackgroundElement,\n\t\t\tcontentElement = slide.slideBackgroundContentElement;\n\n\t\tconst data = {\n\t\t\tbackground: slide.getAttribute( 'data-background' ),\n\t\t\tbackgroundSize: slide.getAttribute( 'data-background-size' ),\n\t\t\tbackgroundImage: slide.getAttribute( 'data-background-image' ),\n\t\t\tbackgroundVideo: slide.getAttribute( 'data-background-video' ),\n\t\t\tbackgroundIframe: slide.getAttribute( 'data-background-iframe' ),\n\t\t\tbackgroundColor: slide.getAttribute( 'data-background-color' ),\n\t\t\tbackgroundGradient: slide.getAttribute( 'data-background-gradient' ),\n\t\t\tbackgroundRepeat: slide.getAttribute( 'data-background-repeat' ),\n\t\t\tbackgroundPosition: slide.getAttribute( 'data-background-position' ),\n\t\t\tbackgroundTransition: slide.getAttribute( 'data-background-transition' ),\n\t\t\tbackgroundOpacity: slide.getAttribute( 'data-background-opacity' ),\n\t\t};\n\n\t\tconst dataPreload = slide.hasAttribute( 'data-preload' );\n\n\t\t// Reset the prior background state in case this is not the\n\t\t// initial sync\n\t\tslide.classList.remove( 'has-dark-background' );\n\t\tslide.classList.remove( 'has-light-background' );\n\n\t\telement.removeAttribute( 'data-loaded' );\n\t\telement.removeAttribute( 'data-background-hash' );\n\t\telement.removeAttribute( 'data-background-size' );\n\t\telement.removeAttribute( 'data-background-transition' );\n\t\telement.style.backgroundColor = '';\n\n\t\tcontentElement.style.backgroundSize = '';\n\t\tcontentElement.style.backgroundRepeat = '';\n\t\tcontentElement.style.backgroundPosition = '';\n\t\tcontentElement.style.backgroundImage = '';\n\t\tcontentElement.style.opacity = '';\n\t\tcontentElement.innerHTML = '';\n\n\t\tif( data.background ) {\n\t\t\t// Auto-wrap image urls in url(...)\n\t\t\tif( /^(http|file|\\/\\/)/gi.test( data.background ) || /\\.(svg|png|jpg|jpeg|gif|bmp|webp)([?#\\s]|$)/gi.test( data.background ) ) {\n\t\t\t\tslide.setAttribute( 'data-background-image', data.background );\n\t\t\t}\n\t\t\telse {\n\t\t\t\telement.style.background = data.background;\n\t\t\t}\n\t\t}\n\n\t\t// Create a hash for this combination of background settings.\n\t\t// This is used to determine when two slide backgrounds are\n\t\t// the same.\n\t\tif( data.background || data.backgroundColor || data.backgroundGradient || data.backgroundImage || data.backgroundVideo || data.backgroundIframe ) {\n\t\t\telement.setAttribute( 'data-background-hash', data.background +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundSize +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundImage +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundVideo +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundIframe +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundColor +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundGradient +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundRepeat +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundPosition +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundTransition +\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tdata.backgroundOpacity );\n\t\t}\n\n\t\t// Additional and optional background properties\n\t\tif( data.backgroundSize ) element.setAttribute( 'data-background-size', data.backgroundSize );\n\t\tif( data.backgroundColor ) element.style.backgroundColor = data.backgroundColor;\n\t\tif( data.backgroundGradient ) element.style.backgroundImage = data.backgroundGradient;\n\t\tif( data.backgroundTransition ) element.setAttribute( 'data-background-transition', data.backgroundTransition );\n\n\t\tif( dataPreload ) element.setAttribute( 'data-preload', '' );\n\n\t\t// Background image options are set on the content wrapper\n\t\tif( data.backgroundSize ) contentElement.style.backgroundSize = data.backgroundSize;\n\t\tif( data.backgroundRepeat ) contentElement.style.backgroundRepeat = data.backgroundRepeat;\n\t\tif( data.backgroundPosition ) contentElement.style.backgroundPosition = data.backgroundPosition;\n\t\tif( data.backgroundOpacity ) contentElement.style.opacity = data.backgroundOpacity;\n\n\t\tconst contrastClass = this.getContrastClass( slide );\n\n\t\tif( typeof contrastClass === 'string' ) {\n\t\t\tslide.classList.add( contrastClass );\n\t\t}\n\n\t}\n\n\t/**\n\t * Returns a class name that can be applied to a slide to indicate\n\t * if it has a light or dark background.\n\t *\n\t * @param {*} slide\n\t *\n\t * @returns {string|null}\n\t */\n\tgetContrastClass( slide ) {\n\n\t\tconst element = slide.slideBackgroundElement;\n\n\t\t// If this slide has a background color, we add a class that\n\t\t// signals if it is light or dark. If the slide has no background\n\t\t// color, no class will be added\n\t\tlet contrastColor = slide.getAttribute( 'data-background-color' );\n\n\t\t// If no bg color was found, or it cannot be converted by colorToRgb, check the computed background\n\t\tif( !contrastColor || !colorToRgb( contrastColor ) ) {\n\t\t\tlet computedBackgroundStyle = window.getComputedStyle( element );\n\t\t\tif( computedBackgroundStyle && computedBackgroundStyle.backgroundColor ) {\n\t\t\t\tcontrastColor = computedBackgroundStyle.backgroundColor;\n\t\t\t}\n\t\t}\n\n\t\tif( contrastColor ) {\n\t\t\tconst rgb = colorToRgb( contrastColor );\n\n\t\t\t// Ignore fully transparent backgrounds. Some browsers return\n\t\t\t// rgba(0,0,0,0) when reading the computed background color of\n\t\t\t// an element with no background\n\t\t\tif( rgb && rgb.a !== 0 ) {\n\t\t\t\tif( colorBrightness( contrastColor ) < 128 ) {\n\t\t\t\t\treturn 'has-dark-background';\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\treturn 'has-light-background';\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\n\t}\n\n\t/**\n\t * Bubble the 'has-light-background'/'has-dark-background' classes.\n\t */\n\tbubbleSlideContrastClassToElement( slide, target ) {\n\n\t\t[ 'has-light-background', 'has-dark-background' ].forEach( classToBubble => {\n\t\t\tif( slide.classList.contains( classToBubble ) ) {\n\t\t\t\ttarget.classList.add( classToBubble );\n\t\t\t}\n\t\t\telse {\n\t\t\t\ttarget.classList.remove( classToBubble );\n\t\t\t}\n\t\t}, this );\n\n\t}\n\n\t/**\n\t * Updates the background elements to reflect the current\n\t * slide.\n\t *\n\t * @param {boolean} includeAll If true, the backgrounds of\n\t * all vertical slides (not just the present) will be updated.\n\t */\n\tupdate( includeAll = false ) {\n\n\t\tlet currentSlide = this.Reveal.getCurrentSlide();\n\t\tlet indices = this.Reveal.getIndices();\n\n\t\tlet currentBackground = null;\n\n\t\t// Reverse past/future classes when in RTL mode\n\t\tlet horizontalPast = this.Reveal.getConfig().rtl ? 'future' : 'past',\n\t\t\thorizontalFuture = this.Reveal.getConfig().rtl ? 'past' : 'future';\n\n\t\t// Update the classes of all backgrounds to match the\n\t\t// states of their slides (past/present/future)\n\t\tArray.from( this.element.childNodes ).forEach( ( backgroundh, h ) => {\n\n\t\t\tbackgroundh.classList.remove( 'past', 'present', 'future' );\n\n\t\t\tif( h < indices.h ) {\n\t\t\t\tbackgroundh.classList.add( horizontalPast );\n\t\t\t}\n\t\t\telse if ( h > indices.h ) {\n\t\t\t\tbackgroundh.classList.add( horizontalFuture );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tbackgroundh.classList.add( 'present' );\n\n\t\t\t\t// Store a reference to the current background element\n\t\t\t\tcurrentBackground = backgroundh;\n\t\t\t}\n\n\t\t\tif( includeAll || h === indices.h ) {\n\t\t\t\tqueryAll( backgroundh, '.slide-background' ).forEach( ( backgroundv, v ) => {\n\n\t\t\t\t\tbackgroundv.classList.remove( 'past', 'present', 'future' );\n\n\t\t\t\t\tconst indexv = typeof indices.v === 'number' ? indices.v : 0;\n\n\t\t\t\t\tif( v < indexv ) {\n\t\t\t\t\t\tbackgroundv.classList.add( 'past' );\n\t\t\t\t\t}\n\t\t\t\t\telse if ( v > indexv ) {\n\t\t\t\t\t\tbackgroundv.classList.add( 'future' );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tbackgroundv.classList.add( 'present' );\n\n\t\t\t\t\t\t// Only if this is the present horizontal and vertical slide\n\t\t\t\t\t\tif( h === indices.h ) currentBackground = backgroundv;\n\t\t\t\t\t}\n\n\t\t\t\t} );\n\t\t\t}\n\n\t\t} );\n\n\t\t// Stop content inside of previous backgrounds\n\t\tif( this.previousBackground ) {\n\n\t\t\tthis.Reveal.slideContent.stopEmbeddedContent( this.previousBackground, { unloadIframes: !this.Reveal.slideContent.shouldPreload( this.previousBackground ) } );\n\n\t\t}\n\n\t\t// Start content in the current background\n\t\tif( currentBackground ) {\n\n\t\t\tthis.Reveal.slideContent.startEmbeddedContent( currentBackground );\n\n\t\t\tlet currentBackgroundContent = currentBackground.querySelector( '.slide-background-content' );\n\t\t\tif( currentBackgroundContent ) {\n\n\t\t\t\tlet backgroundImageURL = currentBackgroundContent.style.backgroundImage || '';\n\n\t\t\t\t// Restart GIFs (doesn't work in Firefox)\n\t\t\t\tif( /\\.gif/i.test( backgroundImageURL ) ) {\n\t\t\t\t\tcurrentBackgroundContent.style.backgroundImage = '';\n\t\t\t\t\twindow.getComputedStyle( currentBackgroundContent ).opacity;\n\t\t\t\t\tcurrentBackgroundContent.style.backgroundImage = backgroundImageURL;\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Don't transition between identical backgrounds. This\n\t\t\t// prevents unwanted flicker.\n\t\t\tlet previousBackgroundHash = this.previousBackground ? this.previousBackground.getAttribute( 'data-background-hash' ) : null;\n\t\t\tlet currentBackgroundHash = currentBackground.getAttribute( 'data-background-hash' );\n\t\t\tif( currentBackgroundHash && currentBackgroundHash === previousBackgroundHash && currentBackground !== this.previousBackground ) {\n\t\t\t\tthis.element.classList.add( 'no-transition' );\n\t\t\t}\n\n\t\t\tthis.previousBackground = currentBackground;\n\n\t\t}\n\n\t\t// If there's a background brightness flag for this slide,\n\t\t// bubble it to the .reveal container\n\t\tif( currentSlide ) {\n\t\t\tthis.bubbleSlideContrastClassToElement( currentSlide, this.Reveal.getRevealElement() );\n\t\t}\n\n\t\t// Allow the first background to apply without transition\n\t\tsetTimeout( () => {\n\t\t\tthis.element.classList.remove( 'no-transition' );\n\t\t}, 1 );\n\n\t}\n\n\t/**\n\t * Updates the position of the parallax background based\n\t * on the current slide index.\n\t */\n\tupdateParallax() {\n\n\t\tlet indices = this.Reveal.getIndices();\n\n\t\tif( this.Reveal.getConfig().parallaxBackgroundImage ) {\n\n\t\t\tlet horizontalSlides = this.Reveal.getHorizontalSlides(),\n\t\t\t\tverticalSlides = this.Reveal.getVerticalSlides();\n\n\t\t\tlet backgroundSize = this.element.style.backgroundSize.split( ' ' ),\n\t\t\t\tbackgroundWidth, backgroundHeight;\n\n\t\t\tif( backgroundSize.length === 1 ) {\n\t\t\t\tbackgroundWidth = backgroundHeight = parseInt( backgroundSize[0], 10 );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tbackgroundWidth = parseInt( backgroundSize[0], 10 );\n\t\t\t\tbackgroundHeight = parseInt( backgroundSize[1], 10 );\n\t\t\t}\n\n\t\t\tlet slideWidth = this.element.offsetWidth,\n\t\t\t\thorizontalSlideCount = horizontalSlides.length,\n\t\t\t\thorizontalOffsetMultiplier,\n\t\t\t\thorizontalOffset;\n\n\t\t\tif( typeof this.Reveal.getConfig().parallaxBackgroundHorizontal === 'number' ) {\n\t\t\t\thorizontalOffsetMultiplier = this.Reveal.getConfig().parallaxBackgroundHorizontal;\n\t\t\t}\n\t\t\telse {\n\t\t\t\thorizontalOffsetMultiplier = horizontalSlideCount > 1 ? ( backgroundWidth - slideWidth ) / ( horizontalSlideCount-1 ) : 0;\n\t\t\t}\n\n\t\t\thorizontalOffset = horizontalOffsetMultiplier * indices.h * -1;\n\n\t\t\tlet slideHeight = this.element.offsetHeight,\n\t\t\t\tverticalSlideCount = verticalSlides.length,\n\t\t\t\tverticalOffsetMultiplier,\n\t\t\t\tverticalOffset;\n\n\t\t\tif( typeof this.Reveal.getConfig().parallaxBackgroundVertical === 'number' ) {\n\t\t\t\tverticalOffsetMultiplier = this.Reveal.getConfig().parallaxBackgroundVertical;\n\t\t\t}\n\t\t\telse {\n\t\t\t\tverticalOffsetMultiplier = ( backgroundHeight - slideHeight ) / ( verticalSlideCount-1 );\n\t\t\t}\n\n\t\t\tverticalOffset = verticalSlideCount > 0 ? verticalOffsetMultiplier * indices.v : 0;\n\n\t\t\tthis.element.style.backgroundPosition = horizontalOffset + 'px ' + -verticalOffset + 'px';\n\n\t\t}\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.element.remove();\n\n\t}\n\n}\n","import { queryAll, extend, createStyleSheet, matches, closest } from '../utils/util.js'\nimport { FRAGMENT_STYLE_REGEX } from '../utils/constants.js'\n\n// Counter used to generate unique IDs for auto-animated elements\nlet autoAnimateCounter = 0;\n\n/**\n * Automatically animates matching elements across\n * slides with the [data-auto-animate] attribute.\n */\nexport default class AutoAnimate {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\t/**\n\t * Runs an auto-animation between the given slides.\n\t *\n\t * @param {HTMLElement} fromSlide\n\t * @param {HTMLElement} toSlide\n\t */\n\trun( fromSlide, toSlide ) {\n\n\t\t// Clean up after prior animations\n\t\tthis.reset();\n\n\t\tlet allSlides = this.Reveal.getSlides();\n\t\tlet toSlideIndex = allSlides.indexOf( toSlide );\n\t\tlet fromSlideIndex = allSlides.indexOf( fromSlide );\n\n\t\t// Ensure that both slides are auto-animate targets with the same data-auto-animate-id value\n\t\t// (including null if absent on both) and that data-auto-animate-restart isn't set on the\n\t\t// physically latter slide (independent of slide direction)\n\t\tif( fromSlide.hasAttribute( 'data-auto-animate' ) && toSlide.hasAttribute( 'data-auto-animate' )\n\t\t\t\t&& fromSlide.getAttribute( 'data-auto-animate-id' ) === toSlide.getAttribute( 'data-auto-animate-id' ) \n\t\t\t\t&& !( toSlideIndex > fromSlideIndex ? toSlide : fromSlide ).hasAttribute( 'data-auto-animate-restart' ) ) {\n\n\t\t\t// Create a new auto-animate sheet\n\t\t\tthis.autoAnimateStyleSheet = this.autoAnimateStyleSheet || createStyleSheet();\n\n\t\t\tlet animationOptions = this.getAutoAnimateOptions( toSlide );\n\n\t\t\t// Set our starting state\n\t\t\tfromSlide.dataset.autoAnimate = 'pending';\n\t\t\ttoSlide.dataset.autoAnimate = 'pending';\n\n\t\t\t// Flag the navigation direction, needed for fragment buildup\n\t\t\tanimationOptions.slideDirection = toSlideIndex > fromSlideIndex ? 'forward' : 'backward';\n\n\t\t\t// If the from-slide is hidden because it has moved outside\n\t\t\t// the view distance, we need to temporarily show it while\n\t\t\t// measuring\n\t\t\tlet fromSlideIsHidden = fromSlide.style.display === 'none';\n\t\t\tif( fromSlideIsHidden ) fromSlide.style.display = this.Reveal.getConfig().display;\n\n\t\t\t// Inject our auto-animate styles for this transition\n\t\t\tlet css = this.getAutoAnimatableElements( fromSlide, toSlide ).map( elements => {\n\t\t\t\treturn this.autoAnimateElements( elements.from, elements.to, elements.options || {}, animationOptions, autoAnimateCounter++ );\n\t\t\t} );\n\n\t\t\tif( fromSlideIsHidden ) fromSlide.style.display = 'none';\n\n\t\t\t// Animate unmatched elements, if enabled\n\t\t\tif( toSlide.dataset.autoAnimateUnmatched !== 'false' && this.Reveal.getConfig().autoAnimateUnmatched === true ) {\n\n\t\t\t\t// Our default timings for unmatched elements\n\t\t\t\tlet defaultUnmatchedDuration = animationOptions.duration * 0.8,\n\t\t\t\t\tdefaultUnmatchedDelay = animationOptions.duration * 0.2;\n\n\t\t\t\tthis.getUnmatchedAutoAnimateElements( toSlide ).forEach( unmatchedElement => {\n\n\t\t\t\t\tlet unmatchedOptions = this.getAutoAnimateOptions( unmatchedElement, animationOptions );\n\t\t\t\t\tlet id = 'unmatched';\n\n\t\t\t\t\t// If there is a duration or delay set specifically for this\n\t\t\t\t\t// element our unmatched elements should adhere to those\n\t\t\t\t\tif( unmatchedOptions.duration !== animationOptions.duration || unmatchedOptions.delay !== animationOptions.delay ) {\n\t\t\t\t\t\tid = 'unmatched-' + autoAnimateCounter++;\n\t\t\t\t\t\tcss.push( `[data-auto-animate=\"running\"] [data-auto-animate-target=\"${id}\"] { transition: opacity ${unmatchedOptions.duration}s ease ${unmatchedOptions.delay}s; }` );\n\t\t\t\t\t}\n\n\t\t\t\t\tunmatchedElement.dataset.autoAnimateTarget = id;\n\n\t\t\t\t}, this );\n\n\t\t\t\t// Our default transition for unmatched elements\n\t\t\t\tcss.push( `[data-auto-animate=\"running\"] [data-auto-animate-target=\"unmatched\"] { transition: opacity ${defaultUnmatchedDuration}s ease ${defaultUnmatchedDelay}s; }` );\n\n\t\t\t}\n\n\t\t\t// Setting the whole chunk of CSS at once is the most\n\t\t\t// efficient way to do this. Using sheet.insertRule\n\t\t\t// is multiple factors slower.\n\t\t\tthis.autoAnimateStyleSheet.innerHTML = css.join( '' );\n\n\t\t\t// Start the animation next cycle\n\t\t\trequestAnimationFrame( () => {\n\t\t\t\tif( this.autoAnimateStyleSheet ) {\n\t\t\t\t\t// This forces our newly injected styles to be applied in Firefox\n\t\t\t\t\tgetComputedStyle( this.autoAnimateStyleSheet ).fontWeight;\n\n\t\t\t\t\ttoSlide.dataset.autoAnimate = 'running';\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\ttype: 'autoanimate',\n\t\t\t\tdata: {\n\t\t\t\t\tfromSlide,\n\t\t\t\t\ttoSlide,\n\t\t\t\t\tsheet: this.autoAnimateStyleSheet\n\t\t\t\t}\n\t\t\t});\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Rolls back all changes that we've made to the DOM so\n\t * that as part of animating.\n\t */\n\treset() {\n\n\t\t// Reset slides\n\t\tqueryAll( this.Reveal.getRevealElement(), '[data-auto-animate]:not([data-auto-animate=\"\"])' ).forEach( element => {\n\t\t\telement.dataset.autoAnimate = '';\n\t\t} );\n\n\t\t// Reset elements\n\t\tqueryAll( this.Reveal.getRevealElement(), '[data-auto-animate-target]' ).forEach( element => {\n\t\t\tdelete element.dataset.autoAnimateTarget;\n\t\t} );\n\n\t\t// Remove the animation sheet\n\t\tif( this.autoAnimateStyleSheet && this.autoAnimateStyleSheet.parentNode ) {\n\t\t\tthis.autoAnimateStyleSheet.parentNode.removeChild( this.autoAnimateStyleSheet );\n\t\t\tthis.autoAnimateStyleSheet = null;\n\t\t}\n\n\t}\n\n\t/**\n\t * Creates a FLIP animation where the `to` element starts out\n\t * in the `from` element position and animates to its original\n\t * state.\n\t *\n\t * @param {HTMLElement} from\n\t * @param {HTMLElement} to\n\t * @param {Object} elementOptions Options for this element pair\n\t * @param {Object} animationOptions Options set at the slide level\n\t * @param {String} id Unique ID that we can use to identify this\n\t * auto-animate element in the DOM\n\t */\n\tautoAnimateElements( from, to, elementOptions, animationOptions, id ) {\n\n\t\t// 'from' elements are given a data-auto-animate-target with no value,\n\t\t// 'to' elements are are given a data-auto-animate-target with an ID\n\t\tfrom.dataset.autoAnimateTarget = '';\n\t\tto.dataset.autoAnimateTarget = id;\n\n\t\t// Each element may override any of the auto-animate options\n\t\t// like transition easing, duration and delay via data-attributes\n\t\tlet options = this.getAutoAnimateOptions( to, animationOptions );\n\n\t\t// If we're using a custom element matcher the element options\n\t\t// may contain additional transition overrides\n\t\tif( typeof elementOptions.delay !== 'undefined' ) options.delay = elementOptions.delay;\n\t\tif( typeof elementOptions.duration !== 'undefined' ) options.duration = elementOptions.duration;\n\t\tif( typeof elementOptions.easing !== 'undefined' ) options.easing = elementOptions.easing;\n\n\t\tlet fromProps = this.getAutoAnimatableProperties( 'from', from, elementOptions ),\n\t\t\ttoProps = this.getAutoAnimatableProperties( 'to', to, elementOptions );\n\n\t\t// Maintain fragment visibility for matching elements when\n\t\t// we're navigating forwards, this way the viewer won't need\n\t\t// to step through the same fragments twice\n\t\tif( to.classList.contains( 'fragment' ) ) {\n\n\t\t\t// Don't auto-animate the opacity of fragments to avoid\n\t\t\t// conflicts with fragment animations\n\t\t\tdelete toProps.styles['opacity'];\n\n\t\t\tif( from.classList.contains( 'fragment' ) ) {\n\n\t\t\t\tlet fromFragmentStyle = ( from.className.match( FRAGMENT_STYLE_REGEX ) || [''] )[0];\n\t\t\t\tlet toFragmentStyle = ( to.className.match( FRAGMENT_STYLE_REGEX ) || [''] )[0];\n\n\t\t\t\t// Only skip the fragment if the fragment animation style\n\t\t\t\t// remains unchanged\n\t\t\t\tif( fromFragmentStyle === toFragmentStyle && animationOptions.slideDirection === 'forward' ) {\n\t\t\t\t\tto.classList.add( 'visible', 'disabled' );\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// If translation and/or scaling are enabled, css transform\n\t\t// the 'to' element so that it matches the position and size\n\t\t// of the 'from' element\n\t\tif( elementOptions.translate !== false || elementOptions.scale !== false ) {\n\n\t\t\tlet presentationScale = this.Reveal.getScale();\n\n\t\t\tlet delta = {\n\t\t\t\tx: ( fromProps.x - toProps.x ) / presentationScale,\n\t\t\t\ty: ( fromProps.y - toProps.y ) / presentationScale,\n\t\t\t\tscaleX: fromProps.width / toProps.width,\n\t\t\t\tscaleY: fromProps.height / toProps.height\n\t\t\t};\n\n\t\t\t// Limit decimal points to avoid 0.0001px blur and stutter\n\t\t\tdelta.x = Math.round( delta.x * 1000 ) / 1000;\n\t\t\tdelta.y = Math.round( delta.y * 1000 ) / 1000;\n\t\t\tdelta.scaleX = Math.round( delta.scaleX * 1000 ) / 1000;\n\t\t\tdelta.scaleX = Math.round( delta.scaleX * 1000 ) / 1000;\n\n\t\t\tlet translate = elementOptions.translate !== false && ( delta.x !== 0 || delta.y !== 0 ),\n\t\t\t\tscale = elementOptions.scale !== false && ( delta.scaleX !== 0 || delta.scaleY !== 0 );\n\n\t\t\t// No need to transform if nothing's changed\n\t\t\tif( translate || scale ) {\n\n\t\t\t\tlet transform = [];\n\n\t\t\t\tif( translate ) transform.push( `translate(${delta.x}px, ${delta.y}px)` );\n\t\t\t\tif( scale ) transform.push( `scale(${delta.scaleX}, ${delta.scaleY})` );\n\n\t\t\t\tfromProps.styles['transform'] = transform.join( ' ' );\n\t\t\t\tfromProps.styles['transform-origin'] = 'top left';\n\n\t\t\t\ttoProps.styles['transform'] = 'none';\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Delete all unchanged 'to' styles\n\t\tfor( let propertyName in toProps.styles ) {\n\t\t\tconst toValue = toProps.styles[propertyName];\n\t\t\tconst fromValue = fromProps.styles[propertyName];\n\n\t\t\tif( toValue === fromValue ) {\n\t\t\t\tdelete toProps.styles[propertyName];\n\t\t\t}\n\t\t\telse {\n\t\t\t\t// If these property values were set via a custom matcher providing\n\t\t\t\t// an explicit 'from' and/or 'to' value, we always inject those values.\n\t\t\t\tif( toValue.explicitValue === true ) {\n\t\t\t\t\ttoProps.styles[propertyName] = toValue.value;\n\t\t\t\t}\n\n\t\t\t\tif( fromValue.explicitValue === true ) {\n\t\t\t\t\tfromProps.styles[propertyName] = fromValue.value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tlet css = '';\n\n\t\tlet toStyleProperties = Object.keys( toProps.styles );\n\n\t\t// Only create animate this element IF at least one style\n\t\t// property has changed\n\t\tif( toStyleProperties.length > 0 ) {\n\n\t\t\t// Instantly move to the 'from' state\n\t\t\tfromProps.styles['transition'] = 'none';\n\n\t\t\t// Animate towards the 'to' state\n\t\t\ttoProps.styles['transition'] = `all ${options.duration}s ${options.easing} ${options.delay}s`;\n\t\t\ttoProps.styles['transition-property'] = toStyleProperties.join( ', ' );\n\t\t\ttoProps.styles['will-change'] = toStyleProperties.join( ', ' );\n\n\t\t\t// Build up our custom CSS. We need to override inline styles\n\t\t\t// so we need to make our styles vErY IMPORTANT!1!!\n\t\t\tlet fromCSS = Object.keys( fromProps.styles ).map( propertyName => {\n\t\t\t\treturn propertyName + ': ' + fromProps.styles[propertyName] + ' !important;';\n\t\t\t} ).join( '' );\n\n\t\t\tlet toCSS = Object.keys( toProps.styles ).map( propertyName => {\n\t\t\t\treturn propertyName + ': ' + toProps.styles[propertyName] + ' !important;';\n\t\t\t} ).join( '' );\n\n\t\t\tcss = \t'[data-auto-animate-target=\"'+ id +'\"] {'+ fromCSS +'}' +\n\t\t\t\t\t'[data-auto-animate=\"running\"] [data-auto-animate-target=\"'+ id +'\"] {'+ toCSS +'}';\n\n\t\t}\n\n\t\treturn css;\n\n\t}\n\n\t/**\n\t * Returns the auto-animate options for the given element.\n\t *\n\t * @param {HTMLElement} element Element to pick up options\n\t * from, either a slide or an animation target\n\t * @param {Object} [inheritedOptions] Optional set of existing\n\t * options\n\t */\n\tgetAutoAnimateOptions( element, inheritedOptions ) {\n\n\t\tlet options = {\n\t\t\teasing: this.Reveal.getConfig().autoAnimateEasing,\n\t\t\tduration: this.Reveal.getConfig().autoAnimateDuration,\n\t\t\tdelay: 0\n\t\t};\n\n\t\toptions = extend( options, inheritedOptions );\n\n\t\t// Inherit options from parent elements\n\t\tif( element.parentNode ) {\n\t\t\tlet autoAnimatedParent = closest( element.parentNode, '[data-auto-animate-target]' );\n\t\t\tif( autoAnimatedParent ) {\n\t\t\t\toptions = this.getAutoAnimateOptions( autoAnimatedParent, options );\n\t\t\t}\n\t\t}\n\n\t\tif( element.dataset.autoAnimateEasing ) {\n\t\t\toptions.easing = element.dataset.autoAnimateEasing;\n\t\t}\n\n\t\tif( element.dataset.autoAnimateDuration ) {\n\t\t\toptions.duration = parseFloat( element.dataset.autoAnimateDuration );\n\t\t}\n\n\t\tif( element.dataset.autoAnimateDelay ) {\n\t\t\toptions.delay = parseFloat( element.dataset.autoAnimateDelay );\n\t\t}\n\n\t\treturn options;\n\n\t}\n\n\t/**\n\t * Returns an object containing all of the properties\n\t * that can be auto-animated for the given element and\n\t * their current computed values.\n\t *\n\t * @param {String} direction 'from' or 'to'\n\t */\n\tgetAutoAnimatableProperties( direction, element, elementOptions ) {\n\n\t\tlet config = this.Reveal.getConfig();\n\n\t\tlet properties = { styles: [] };\n\n\t\t// Position and size\n\t\tif( elementOptions.translate !== false || elementOptions.scale !== false ) {\n\t\t\tlet bounds;\n\n\t\t\t// Custom auto-animate may optionally return a custom tailored\n\t\t\t// measurement function\n\t\t\tif( typeof elementOptions.measure === 'function' ) {\n\t\t\t\tbounds = elementOptions.measure( element );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tif( config.center ) {\n\t\t\t\t\t// More precise, but breaks when used in combination\n\t\t\t\t\t// with zoom for scaling the deck ¯\\_(ツ)_/¯\n\t\t\t\t\tbounds = element.getBoundingClientRect();\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tlet scale = this.Reveal.getScale();\n\t\t\t\t\tbounds = {\n\t\t\t\t\t\tx: element.offsetLeft * scale,\n\t\t\t\t\t\ty: element.offsetTop * scale,\n\t\t\t\t\t\twidth: element.offsetWidth * scale,\n\t\t\t\t\t\theight: element.offsetHeight * scale\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tproperties.x = bounds.x;\n\t\t\tproperties.y = bounds.y;\n\t\t\tproperties.width = bounds.width;\n\t\t\tproperties.height = bounds.height;\n\t\t}\n\n\t\tconst computedStyles = getComputedStyle( element );\n\n\t\t// CSS styles\n\t\t( elementOptions.styles || config.autoAnimateStyles ).forEach( style => {\n\t\t\tlet value;\n\n\t\t\t// `style` is either the property name directly, or an object\n\t\t\t// definition of a style property\n\t\t\tif( typeof style === 'string' ) style = { property: style };\n\n\t\t\tif( typeof style.from !== 'undefined' && direction === 'from' ) {\n\t\t\t\tvalue = { value: style.from, explicitValue: true };\n\t\t\t}\n\t\t\telse if( typeof style.to !== 'undefined' && direction === 'to' ) {\n\t\t\t\tvalue = { value: style.to, explicitValue: true };\n\t\t\t}\n\t\t\telse {\n\t\t\t\t// Use a unitless value for line-height so that it inherits properly\n\t\t\t\tif( style.property === 'line-height' ) {\n\t\t\t\t\tvalue = parseFloat( computedStyles['line-height'] ) / parseFloat( computedStyles['font-size'] );\n\t\t\t\t}\n\n\t\t\t\tif( isNaN(value) ) {\n\t\t\t\t\tvalue = computedStyles[style.property];\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif( value !== '' ) {\n\t\t\t\tproperties.styles[style.property] = value;\n\t\t\t}\n\t\t} );\n\n\t\treturn properties;\n\n\t}\n\n\t/**\n\t * Get a list of all element pairs that we can animate\n\t * between the given slides.\n\t *\n\t * @param {HTMLElement} fromSlide\n\t * @param {HTMLElement} toSlide\n\t *\n\t * @return {Array} Each value is an array where [0] is\n\t * the element we're animating from and [1] is the\n\t * element we're animating to\n\t */\n\tgetAutoAnimatableElements( fromSlide, toSlide ) {\n\n\t\tlet matcher = typeof this.Reveal.getConfig().autoAnimateMatcher === 'function' ? this.Reveal.getConfig().autoAnimateMatcher : this.getAutoAnimatePairs;\n\n\t\tlet pairs = matcher.call( this, fromSlide, toSlide );\n\n\t\tlet reserved = [];\n\n\t\t// Remove duplicate pairs\n\t\treturn pairs.filter( ( pair, index ) => {\n\t\t\tif( reserved.indexOf( pair.to ) === -1 ) {\n\t\t\t\treserved.push( pair.to );\n\t\t\t\treturn true;\n\t\t\t}\n\t\t} );\n\n\t}\n\n\t/**\n\t * Identifies matching elements between slides.\n\t *\n\t * You can specify a custom matcher function by using\n\t * the `autoAnimateMatcher` config option.\n\t */\n\tgetAutoAnimatePairs( fromSlide, toSlide ) {\n\n\t\tlet pairs = [];\n\n\t\tconst codeNodes = 'pre';\n\t\tconst textNodes = 'h1, h2, h3, h4, h5, h6, p, li';\n\t\tconst mediaNodes = 'img, video, iframe';\n\n\t\t// Explicit matches via data-id\n\t\tthis.findAutoAnimateMatches( pairs, fromSlide, toSlide, '[data-id]', node => {\n\t\t\treturn node.nodeName + ':::' + node.getAttribute( 'data-id' );\n\t\t} );\n\n\t\t// Text\n\t\tthis.findAutoAnimateMatches( pairs, fromSlide, toSlide, textNodes, node => {\n\t\t\treturn node.nodeName + ':::' + node.innerText;\n\t\t} );\n\n\t\t// Media\n\t\tthis.findAutoAnimateMatches( pairs, fromSlide, toSlide, mediaNodes, node => {\n\t\t\treturn node.nodeName + ':::' + ( node.getAttribute( 'src' ) || node.getAttribute( 'data-src' ) );\n\t\t} );\n\n\t\t// Code\n\t\tthis.findAutoAnimateMatches( pairs, fromSlide, toSlide, codeNodes, node => {\n\t\t\treturn node.nodeName + ':::' + node.innerText;\n\t\t} );\n\n\t\tpairs.forEach( pair => {\n\t\t\t// Disable scale transformations on text nodes, we transition\n\t\t\t// each individual text property instead\n\t\t\tif( matches( pair.from, textNodes ) ) {\n\t\t\t\tpair.options = { scale: false };\n\t\t\t}\n\t\t\t// Animate individual lines of code\n\t\t\telse if( matches( pair.from, codeNodes ) ) {\n\n\t\t\t\t// Transition the code block's width and height instead of scaling\n\t\t\t\t// to prevent its content from being squished\n\t\t\t\tpair.options = { scale: false, styles: [ 'width', 'height' ] };\n\n\t\t\t\t// Lines of code\n\t\t\t\tthis.findAutoAnimateMatches( pairs, pair.from, pair.to, '.hljs .hljs-ln-code', node => {\n\t\t\t\t\treturn node.textContent;\n\t\t\t\t}, {\n\t\t\t\t\tscale: false,\n\t\t\t\t\tstyles: [],\n\t\t\t\t\tmeasure: this.getLocalBoundingBox.bind( this )\n\t\t\t\t} );\n\n\t\t\t\t// Line numbers\n\t\t\t\tthis.findAutoAnimateMatches( pairs, pair.from, pair.to, '.hljs .hljs-ln-numbers[data-line-number]', node => {\n\t\t\t\t\treturn node.getAttribute( 'data-line-number' );\n\t\t\t\t}, {\n\t\t\t\t\tscale: false,\n\t\t\t\t\tstyles: [ 'width' ],\n\t\t\t\t\tmeasure: this.getLocalBoundingBox.bind( this )\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t}, this );\n\n\t\treturn pairs;\n\n\t}\n\n\t/**\n\t * Helper method which returns a bounding box based on\n\t * the given elements offset coordinates.\n\t *\n\t * @param {HTMLElement} element\n\t * @return {Object} x, y, width, height\n\t */\n\tgetLocalBoundingBox( element ) {\n\n\t\tconst presentationScale = this.Reveal.getScale();\n\n\t\treturn {\n\t\t\tx: Math.round( ( element.offsetLeft * presentationScale ) * 100 ) / 100,\n\t\t\ty: Math.round( ( element.offsetTop * presentationScale ) * 100 ) / 100,\n\t\t\twidth: Math.round( ( element.offsetWidth * presentationScale ) * 100 ) / 100,\n\t\t\theight: Math.round( ( element.offsetHeight * presentationScale ) * 100 ) / 100\n\t\t};\n\n\t}\n\n\t/**\n\t * Finds matching elements between two slides.\n\t *\n\t * @param {Array} pairs \tList of pairs to push matches to\n\t * @param {HTMLElement} fromScope Scope within the from element exists\n\t * @param {HTMLElement} toScope Scope within the to element exists\n\t * @param {String} selector CSS selector of the element to match\n\t * @param {Function} serializer A function that accepts an element and returns\n\t * a stringified ID based on its contents\n\t * @param {Object} animationOptions Optional config options for this pair\n\t */\n\tfindAutoAnimateMatches( pairs, fromScope, toScope, selector, serializer, animationOptions ) {\n\n\t\tlet fromMatches = {};\n\t\tlet toMatches = {};\n\n\t\t[].slice.call( fromScope.querySelectorAll( selector ) ).forEach( ( element, i ) => {\n\t\t\tconst key = serializer( element );\n\t\t\tif( typeof key === 'string' && key.length ) {\n\t\t\t\tfromMatches[key] = fromMatches[key] || [];\n\t\t\t\tfromMatches[key].push( element );\n\t\t\t}\n\t\t} );\n\n\t\t[].slice.call( toScope.querySelectorAll( selector ) ).forEach( ( element, i ) => {\n\t\t\tconst key = serializer( element );\n\t\t\ttoMatches[key] = toMatches[key] || [];\n\t\t\ttoMatches[key].push( element );\n\n\t\t\tlet fromElement;\n\n\t\t\t// Retrieve the 'from' element\n\t\t\tif( fromMatches[key] ) {\n\t\t\t\tconst primaryIndex = toMatches[key].length - 1;\n\t\t\t\tconst secondaryIndex = fromMatches[key].length - 1;\n\n\t\t\t\t// If there are multiple identical from elements, retrieve\n\t\t\t\t// the one at the same index as our to-element.\n\t\t\t\tif( fromMatches[key][ primaryIndex ] ) {\n\t\t\t\t\tfromElement = fromMatches[key][ primaryIndex ];\n\t\t\t\t\tfromMatches[key][ primaryIndex ] = null;\n\t\t\t\t}\n\t\t\t\t// If there are no matching from-elements at the same index,\n\t\t\t\t// use the last one.\n\t\t\t\telse if( fromMatches[key][ secondaryIndex ] ) {\n\t\t\t\t\tfromElement = fromMatches[key][ secondaryIndex ];\n\t\t\t\t\tfromMatches[key][ secondaryIndex ] = null;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If we've got a matching pair, push it to the list of pairs\n\t\t\tif( fromElement ) {\n\t\t\t\tpairs.push({\n\t\t\t\t\tfrom: fromElement,\n\t\t\t\t\tto: element,\n\t\t\t\t\toptions: animationOptions\n\t\t\t\t});\n\t\t\t}\n\t\t} );\n\n\t}\n\n\t/**\n\t * Returns a all elements within the given scope that should\n\t * be considered unmatched in an auto-animate transition. If\n\t * fading of unmatched elements is turned on, these elements\n\t * will fade when going between auto-animate slides.\n\t *\n\t * Note that parents of auto-animate targets are NOT considered\n\t * unmatched since fading them would break the auto-animation.\n\t *\n\t * @param {HTMLElement} rootElement\n\t * @return {Array}\n\t */\n\tgetUnmatchedAutoAnimateElements( rootElement ) {\n\n\t\treturn [].slice.call( rootElement.children ).reduce( ( result, element ) => {\n\n\t\t\tconst containsAnimatedElements = element.querySelector( '[data-auto-animate-target]' );\n\n\t\t\t// The element is unmatched if\n\t\t\t// - It is not an auto-animate target\n\t\t\t// - It does not contain any auto-animate targets\n\t\t\tif( !element.hasAttribute( 'data-auto-animate-target' ) && !containsAnimatedElements ) {\n\t\t\t\tresult.push( element );\n\t\t\t}\n\n\t\t\tif( element.querySelector( '[data-auto-animate-target]' ) ) {\n\t\t\t\tresult = result.concat( this.getUnmatchedAutoAnimateElements( element ) );\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}, [] );\n\n\t}\n\n}\n","import { HORIZONTAL_SLIDES_SELECTOR, HORIZONTAL_BACKGROUNDS_SELECTOR } from '../utils/constants.js'\nimport { queryAll } from '../utils/util.js'\n\nconst HIDE_SCROLLBAR_TIMEOUT = 500;\nconst MAX_PROGRESS_SPACING = 4;\nconst MIN_PROGRESS_SEGMENT_HEIGHT = 6;\nconst MIN_PLAYHEAD_HEIGHT = 8;\n\n/**\n * The scroll view lets you read a reveal.js presentation\n * as a linear scrollable page.\n */\nexport default class ScrollView {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.active = false;\n\t\tthis.activatedCallbacks = [];\n\n\t\tthis.onScroll = this.onScroll.bind( this );\n\n\t}\n\n\t/**\n\t * Activates the scroll view. This rearranges the presentation DOM\n\t * by—among other things—wrapping each slide in a page element.\n\t */\n\tactivate() {\n\n\t\tif( this.active ) return;\n\n\t\tconst stateBeforeActivation = this.Reveal.getState();\n\n\t\tthis.active = true;\n\n\t\t// Store the full presentation HTML so that we can restore it\n\t\t// when/if the scroll view is deactivated\n\t\tthis.slideHTMLBeforeActivation = this.Reveal.getSlidesElement().innerHTML;\n\n\t\tconst horizontalSlides = queryAll( this.Reveal.getRevealElement(), HORIZONTAL_SLIDES_SELECTOR );\n\t\tconst horizontalBackgrounds = queryAll( this.Reveal.getRevealElement(), HORIZONTAL_BACKGROUNDS_SELECTOR );\n\n\t\tthis.viewportElement.classList.add( 'loading-scroll-mode', 'reveal-scroll' );\n\n\t\tlet presentationBackground;\n\n\t\tconst viewportStyles = window.getComputedStyle( this.viewportElement );\n\t\tif( viewportStyles && viewportStyles.background ) {\n\t\t\tpresentationBackground = viewportStyles.background;\n\t\t}\n\n\t\tconst pageElements = [];\n\t\tconst pageContainer = horizontalSlides[0].parentNode;\n\n\t\tlet previousSlide;\n\n\t\t// Creates a new page element and appends the given slide/bg\n\t\t// to it.\n\t\tconst createPageElement = ( slide, h, v, isVertical ) => {\n\n\t\t\tlet contentContainer;\n\n\t\t\t// If this slide is part of an auto-animation sequence, we\n\t\t\t// group it under the same page element as the previous slide\n\t\t\tif( previousSlide && this.Reveal.shouldAutoAnimateBetween( previousSlide, slide ) ) {\n\t\t\t\tcontentContainer = document.createElement( 'div' );\n\t\t\t\tcontentContainer.className = 'scroll-page-content scroll-auto-animate-page';\n\t\t\t\tcontentContainer.style.display = 'none';\n\t\t\t\tpreviousSlide.closest( '.scroll-page-content' ).parentNode.appendChild( contentContainer );\n\t\t\t}\n\t\t\telse {\n\t\t\t\t// Wrap the slide in a page element and hide its overflow\n\t\t\t\t// so that no page ever flows onto another\n\t\t\t\tconst page = document.createElement( 'div' );\n\t\t\t\tpage.className = 'scroll-page';\n\t\t\t\tpageElements.push( page );\n\n\t\t\t\t// This transfers over the background of the vertical stack containing\n\t\t\t\t// the slide if it exists. Otherwise, it uses the presentation-wide\n\t\t\t\t// background.\n\t\t\t\tif( isVertical && horizontalBackgrounds.length > h ) {\n\t\t\t\t\tconst slideBackground = horizontalBackgrounds[h];\n\t\t\t\t\tconst pageBackground = window.getComputedStyle( slideBackground );\n\n\t\t\t\t\tif( pageBackground && pageBackground.background ) {\n\t\t\t\t\t\tpage.style.background = pageBackground.background;\n\t\t\t\t\t}\n\t\t\t\t\telse if( presentationBackground ) {\n\t\t\t\t\t\tpage.style.background = presentationBackground;\n\t\t\t\t\t}\n\t\t\t\t} else if( presentationBackground ) {\n\t\t\t\t\tpage.style.background = presentationBackground;\n\t\t\t\t}\n\n\t\t\t\tconst stickyContainer = document.createElement( 'div' );\n\t\t\t\tstickyContainer.className = 'scroll-page-sticky';\n\t\t\t\tpage.appendChild( stickyContainer );\n\n\t\t\t\tcontentContainer = document.createElement( 'div' );\n\t\t\t\tcontentContainer.className = 'scroll-page-content';\n\t\t\t\tstickyContainer.appendChild( contentContainer );\n\t\t\t}\n\n\t\t\tcontentContainer.appendChild( slide );\n\n\t\t\tslide.classList.remove( 'past', 'future' );\n\t\t\tslide.setAttribute( 'data-index-h', h );\n\t\t\tslide.setAttribute( 'data-index-v', v );\n\n\t\t\tif( slide.slideBackgroundElement ) {\n\t\t\t\tslide.slideBackgroundElement.remove( 'past', 'future' );\n\t\t\t\tcontentContainer.insertBefore( slide.slideBackgroundElement, slide );\n\t\t\t}\n\n\t\t\tpreviousSlide = slide;\n\n\t\t}\n\n\t\t// Slide and slide background layout\n\t\thorizontalSlides.forEach( ( horizontalSlide, h ) => {\n\n\t\t\tif( this.Reveal.isVerticalStack( horizontalSlide ) ) {\n\t\t\t\thorizontalSlide.querySelectorAll( 'section' ).forEach( ( verticalSlide, v ) => {\n\t\t\t\t\tcreatePageElement( verticalSlide, h, v, true );\n\t\t\t\t});\n\t\t\t}\n\t\t\telse {\n\t\t\t\tcreatePageElement( horizontalSlide, h, 0 );\n\t\t\t}\n\n\t\t}, this );\n\n\t\tthis.createProgressBar();\n\n\t\t// Remove leftover stacks\n\t\tqueryAll( this.Reveal.getRevealElement(), '.stack' ).forEach( stack => stack.remove() );\n\n\t\t// Add our newly created pages to the DOM\n\t\tpageElements.forEach( page => pageContainer.appendChild( page ) );\n\n\t\t// Re-run JS-based content layout after the slide is added to page DOM\n\t\tthis.Reveal.slideContent.layout( this.Reveal.getSlidesElement() );\n\n\t\tthis.Reveal.layout();\n\t\tthis.Reveal.setState( stateBeforeActivation );\n\n\t\tthis.activatedCallbacks.forEach( callback => callback() );\n\t\tthis.activatedCallbacks = [];\n\n\t\tthis.restoreScrollPosition();\n\n\t\tthis.viewportElement.classList.remove( 'loading-scroll-mode' );\n\t\tthis.viewportElement.addEventListener( 'scroll', this.onScroll, { passive: true } );\n\n\t}\n\n\t/**\n\t * Deactivates the scroll view and restores the standard slide-based\n\t * presentation.\n\t */\n\tdeactivate() {\n\n\t\tif( !this.active ) return;\n\n\t\tconst stateBeforeDeactivation = this.Reveal.getState();\n\n\t\tthis.active = false;\n\n\t\tthis.viewportElement.removeEventListener( 'scroll', this.onScroll );\n\t\tthis.viewportElement.classList.remove( 'reveal-scroll' );\n\n\t\tthis.removeProgressBar();\n\n\t\tthis.Reveal.getSlidesElement().innerHTML = this.slideHTMLBeforeActivation;\n\t\tthis.Reveal.sync();\n\t\tthis.Reveal.setState( stateBeforeDeactivation );\n\n\t\tthis.slideHTMLBeforeActivation = null;\n\n\t}\n\n\ttoggle( override ) {\n\n\t\tif( typeof override === 'boolean' ) {\n\t\t\toverride ? this.activate() : this.deactivate();\n\t\t}\n\t\telse {\n\t\t\tthis.isActive() ? this.deactivate() : this.activate();\n\t\t}\n\n\t}\n\n\t/**\n\t * Checks if the scroll view is currently active.\n\t */\n\tisActive() {\n\n\t\treturn this.active;\n\n\t}\n\n\t/**\n\t * Renders the progress bar component.\n\t */\n\tcreateProgressBar() {\n\n\t\tthis.progressBar = document.createElement( 'div' );\n\t\tthis.progressBar.className = 'scrollbar';\n\n\t\tthis.progressBarInner = document.createElement( 'div' );\n\t\tthis.progressBarInner.className = 'scrollbar-inner';\n\t\tthis.progressBar.appendChild( this.progressBarInner );\n\n\t\tthis.progressBarPlayhead = document.createElement( 'div' );\n\t\tthis.progressBarPlayhead.className = 'scrollbar-playhead';\n\t\tthis.progressBarInner.appendChild( this.progressBarPlayhead );\n\n\t\tthis.viewportElement.insertBefore( this.progressBar, this.viewportElement.firstChild );\n\n\t\tconst handleDocumentMouseMove\t= ( event ) => {\n\n\t\t\tlet progress = ( event.clientY - this.progressBarInner.getBoundingClientRect().top ) / this.progressBarHeight;\n\t\t\tprogress = Math.max( Math.min( progress, 1 ), 0 );\n\n\t\t\tthis.viewportElement.scrollTop = progress * ( this.viewportElement.scrollHeight - this.viewportElement.offsetHeight );\n\n\t\t};\n\n\t\tconst handleDocumentMouseUp = ( event ) => {\n\n\t\t\tthis.draggingProgressBar = false;\n\t\t\tthis.showProgressBar();\n\n\t\t\tdocument.removeEventListener( 'mousemove', handleDocumentMouseMove );\n\t\t\tdocument.removeEventListener( 'mouseup', handleDocumentMouseUp );\n\n\t\t};\n\n\t\tconst handleMouseDown = ( event ) => {\n\n\t\t\tevent.preventDefault();\n\n\t\t\tthis.draggingProgressBar = true;\n\n\t\t\tdocument.addEventListener( 'mousemove', handleDocumentMouseMove );\n\t\t\tdocument.addEventListener( 'mouseup', handleDocumentMouseUp );\n\n\t\t\thandleDocumentMouseMove( event );\n\n\t\t};\n\n\t\tthis.progressBarInner.addEventListener( 'mousedown', handleMouseDown );\n\n\t}\n\n\tremoveProgressBar() {\n\n\t\tif( this.progressBar ) {\n\t\t\tthis.progressBar.remove();\n\t\t\tthis.progressBar = null;\n\t\t}\n\n\t}\n\n\tlayout() {\n\n\t\tif( this.isActive() ) {\n\t\t\tthis.syncPages();\n\t\t\tthis.syncScrollPosition();\n\t\t}\n\n\t}\n\n\t/**\n\t * Updates our pages to match the latest configuration and\n\t * presentation size.\n\t */\n\tsyncPages() {\n\n\t\tconst config = this.Reveal.getConfig();\n\n\t\tconst slideSize = this.Reveal.getComputedSlideSize( window.innerWidth, window.innerHeight );\n\t\tconst scale = this.Reveal.getScale();\n\t\tconst useCompactLayout = config.scrollLayout === 'compact';\n\n\t\tconst viewportHeight = this.viewportElement.offsetHeight;\n\t\tconst compactHeight = slideSize.height * scale;\n\t\tconst pageHeight = useCompactLayout ? compactHeight : viewportHeight;\n\n\t\t// The height that needs to be scrolled between scroll triggers\n\t\tthis.scrollTriggerHeight = useCompactLayout ? compactHeight : viewportHeight;\n\n\t\tthis.viewportElement.style.setProperty( '--page-height', pageHeight + 'px' );\n\t\tthis.viewportElement.style.scrollSnapType = typeof config.scrollSnap === 'string' ? `y ${config.scrollSnap}` : '';\n\n\t\t// This will hold all scroll triggers used to show/hide slides\n\t\tthis.slideTriggers = [];\n\n\t\tconst pageElements = Array.from( this.Reveal.getRevealElement().querySelectorAll( '.scroll-page' ) );\n\n\t\tthis.pages = pageElements.map( pageElement => {\n\t\t\tconst page = this.createPage({\n\t\t\t\tpageElement,\n\t\t\t\tslideElement: pageElement.querySelector( 'section' ),\n\t\t\t\tstickyElement: pageElement.querySelector( '.scroll-page-sticky' ),\n\t\t\t\tcontentElement: pageElement.querySelector( '.scroll-page-content' ),\n\t\t\t\tbackgroundElement: pageElement.querySelector( '.slide-background' ),\n\t\t\t\tautoAnimateElements: pageElement.querySelectorAll( '.scroll-auto-animate-page' ),\n\t\t\t\tautoAnimatePages: []\n\t\t\t});\n\n\t\t\tpage.pageElement.style.setProperty( '--slide-height', config.center === true ? 'auto' : slideSize.height + 'px' );\n\n\t\t\tthis.slideTriggers.push({\n\t\t\t\tpage: page,\n\t\t\t\tactivate: () => this.activatePage( page ),\n\t\t\t\tdeactivate: () => this.deactivatePage( page )\n\t\t\t});\n\n\t\t\t// Create scroll triggers that show/hide fragments\n\t\t\tthis.createFragmentTriggersForPage( page );\n\n\t\t\t// Create scroll triggers for triggering auto-animate steps\n\t\t\tif( page.autoAnimateElements.length > 0 ) {\n\t\t\t\tthis.createAutoAnimateTriggersForPage( page );\n\t\t\t}\n\n\t\t\tlet totalScrollTriggerCount = Math.max( page.scrollTriggers.length - 1, 0 );\n\n\t\t\t// Each auto-animate step may include its own scroll triggers\n\t\t\t// for fragments, ensure we count those as well\n\t\t\ttotalScrollTriggerCount += page.autoAnimatePages.reduce( ( total, page ) => {\n\t\t\t\treturn total + Math.max( page.scrollTriggers.length - 1, 0 );\n\t\t\t}, page.autoAnimatePages.length );\n\n\t\t\t// Clean up from previous renders\n\t\t\tpage.pageElement.querySelectorAll( '.scroll-snap-point' ).forEach( el => el.remove() );\n\n\t\t\t// Create snap points for all scroll triggers\n\t\t\t// - Can't be absolute in FF\n\t\t\t// - Can't be 0-height in Safari\n\t\t\t// - Can't use snap-align on parent in Safari because then\n\t\t\t// inner triggers won't work\n\t\t\tfor( let i = 0; i < totalScrollTriggerCount + 1; i++ ) {\n\t\t\t\tconst triggerStick = document.createElement( 'div' );\n\t\t\t\ttriggerStick.className = 'scroll-snap-point';\n\t\t\t\ttriggerStick.style.height = this.scrollTriggerHeight + 'px';\n\t\t\t\ttriggerStick.style.scrollSnapAlign = useCompactLayout ? 'center' : 'start';\n\t\t\t\tpage.pageElement.appendChild( triggerStick );\n\n\t\t\t\tif( i === 0 ) {\n\t\t\t\t\ttriggerStick.style.marginTop = -this.scrollTriggerHeight + 'px';\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// In the compact layout, only slides with scroll triggers cover the\n\t\t\t// full viewport height. This helps avoid empty gaps before or after\n\t\t\t// a sticky slide.\n\t\t\tif( useCompactLayout && page.scrollTriggers.length > 0 ) {\n\t\t\t\tpage.pageHeight = viewportHeight;\n\t\t\t\tpage.pageElement.style.setProperty( '--page-height', viewportHeight + 'px' );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tpage.pageHeight = pageHeight;\n\t\t\t\tpage.pageElement.style.removeProperty( '--page-height' );\n\t\t\t}\n\n\t\t\t// Add scroll padding based on how many scroll triggers we have\n\t\t\tpage.scrollPadding = this.scrollTriggerHeight * totalScrollTriggerCount;\n\n\t\t\t// The total height including scrollable space\n\t\t\tpage.totalHeight = page.pageHeight + page.scrollPadding;\n\n\t\t\t// This is used to pad the height of our page in CSS\n\t\t\tpage.pageElement.style.setProperty( '--page-scroll-padding', page.scrollPadding + 'px' );\n\n\t\t\t// If this is a sticky page, stick it to the vertical center\n\t\t\tif( totalScrollTriggerCount > 0 ) {\n\t\t\t\tpage.stickyElement.style.position = 'sticky';\n\t\t\t\tpage.stickyElement.style.top = Math.max( ( viewportHeight - page.pageHeight ) / 2, 0 ) + 'px';\n\t\t\t}\n\t\t\telse {\n\t\t\t\tpage.stickyElement.style.position = 'relative';\n\t\t\t\tpage.pageElement.style.scrollSnapAlign = page.pageHeight < viewportHeight ? 'center' : 'start';\n\t\t\t}\n\n\t\t\treturn page;\n\t\t} );\n\n\t\tthis.setTriggerRanges();\n\n\t\t/*\n\t\tconsole.log(this.slideTriggers.map( t => {\n\t\t\treturn {\n\t\t\t\trange: `${t.range[0].toFixed(2)}-${t.range[1].toFixed(2)}`,\n\t\t\t\ttriggers: t.page.scrollTriggers.map( t => {\n\t\t\t\t\treturn `${t.range[0].toFixed(2)}-${t.range[1].toFixed(2)}`\n\t\t\t\t}).join( ', ' ),\n\t\t\t}\n\t\t}))\n\t\t*/\n\n\t\tthis.viewportElement.setAttribute( 'data-scrollbar', config.scrollProgress );\n\n\t\tif( config.scrollProgress && this.totalScrollTriggerCount > 1 ) {\n\t\t\t// Create the progress bar if it doesn't already exist\n\t\t\tif( !this.progressBar ) this.createProgressBar();\n\n\t\t\tthis.syncProgressBar();\n\t\t}\n\t\telse {\n\t\t\tthis.removeProgressBar();\n\t\t}\n\n\t}\n\n\t/**\n\t * Calculates and sets the scroll range for all of our scroll\n\t * triggers.\n\t */\n\tsetTriggerRanges() {\n\n\t\t// Calculate the total number of scroll triggers\n\t\tthis.totalScrollTriggerCount = this.slideTriggers.reduce( ( total, trigger ) => {\n\t\t\treturn total + Math.max( trigger.page.scrollTriggers.length, 1 );\n\t\t}, 0 );\n\n\t\tlet rangeStart = 0;\n\n\t\t// Calculate the scroll range of each scroll trigger on a scale\n\t\t// of 0-1\n\t\tthis.slideTriggers.forEach( ( trigger, i ) => {\n\t\t\ttrigger.range = [\n\t\t\t\trangeStart,\n\t\t\t\trangeStart + Math.max( trigger.page.scrollTriggers.length, 1 ) / this.totalScrollTriggerCount\n\t\t\t];\n\n\t\t\tconst scrollTriggerSegmentSize = ( trigger.range[1] - trigger.range[0] ) / trigger.page.scrollTriggers.length;\n\t\t\t// Set the range for each inner scroll trigger\n\t\t\ttrigger.page.scrollTriggers.forEach( ( scrollTrigger, i ) => {\n\t\t\t\tscrollTrigger.range = [\n\t\t\t\t\trangeStart + i * scrollTriggerSegmentSize,\n\t\t\t\t\trangeStart + ( i + 1 ) * scrollTriggerSegmentSize\n\t\t\t\t];\n\t\t\t} );\n\n\t\t\trangeStart = trigger.range[1];\n\t\t} );\n\n\t}\n\n\t/**\n\t * Creates one scroll trigger for each fragments in the given page.\n\t *\n\t * @param {*} page\n\t */\n\tcreateFragmentTriggersForPage( page, slideElement ) {\n\n\t\tslideElement = slideElement || page.slideElement;\n\n\t\t// Each fragment 'group' is an array containing one or more\n\t\t// fragments. Multiple fragments that appear at the same time\n\t\t// are part of the same group.\n\t\tconst fragmentGroups = this.Reveal.fragments.sort( slideElement.querySelectorAll( '.fragment' ), true );\n\n\t\t// Create scroll triggers that show/hide fragments\n\t\tif( fragmentGroups.length ) {\n\t\t\tpage.fragments = this.Reveal.fragments.sort( slideElement.querySelectorAll( '.fragment:not(.disabled)' ) );\n\t\t\tpage.scrollTriggers.push(\n\t\t\t\t// Trigger for the initial state with no fragments visible\n\t\t\t\t{\n\t\t\t\t\tactivate: () => {\n\t\t\t\t\t\tthis.Reveal.fragments.update( -1, page.fragments, slideElement );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t);\n\n\t\t\t// Triggers for each fragment group\n\t\t\tfragmentGroups.forEach( ( fragments, i ) => {\n\t\t\t\tpage.scrollTriggers.push({\n\t\t\t\t\tactivate: () => {\n\t\t\t\t\t\tthis.Reveal.fragments.update( i, page.fragments, slideElement );\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t} );\n\t\t}\n\n\n\t\treturn page.scrollTriggers.length;\n\n\t}\n\n\t/**\n\t * Creates scroll triggers for the auto-animate steps in the\n\t * given page.\n\t *\n\t * @param {*} page\n\t */\n\tcreateAutoAnimateTriggersForPage( page ) {\n\n\t\tif( page.autoAnimateElements.length > 0 ) {\n\n\t\t\t// Triggers for each subsequent auto-animate slide\n\t\t\tthis.slideTriggers.push( ...Array.from( page.autoAnimateElements ).map( ( autoAnimateElement, i ) => {\n\t\t\t\tlet autoAnimatePage = this.createPage({\n\t\t\t\t\tslideElement: autoAnimateElement.querySelector( 'section' ),\n\t\t\t\t\tcontentElement: autoAnimateElement,\n\t\t\t\t\tbackgroundElement: autoAnimateElement.querySelector( '.slide-background' )\n\t\t\t\t});\n\n\t\t\t\t// Create fragment scroll triggers for the auto-animate slide\n\t\t\t\tthis.createFragmentTriggersForPage( autoAnimatePage, autoAnimatePage.slideElement );\n\n\t\t\t\tpage.autoAnimatePages.push( autoAnimatePage );\n\n\t\t\t\t// Return our slide trigger\n\t\t\t\treturn {\n\t\t\t\t\tpage: autoAnimatePage,\n\t\t\t\t\tactivate: () => this.activatePage( autoAnimatePage ),\n\t\t\t\t\tdeactivate: () => this.deactivatePage( autoAnimatePage )\n\t\t\t\t};\n\t\t\t}));\n\t\t}\n\n\t}\n\n\t/**\n\t * Helper method for creating a page definition and adding\n\t * required fields. A \"page\" is a slide or auto-animate step.\n\t */\n\tcreatePage( page ) {\n\n\t\tpage.scrollTriggers = [];\n\t\tpage.indexh = parseInt( page.slideElement.getAttribute( 'data-index-h' ), 10 );\n\t\tpage.indexv = parseInt( page.slideElement.getAttribute( 'data-index-v' ), 10 );\n\n\t\treturn page;\n\n\t}\n\n\t/**\n\t * Rerenders progress bar segments so that they match the current\n\t * reveal.js config and size.\n\t */\n\tsyncProgressBar() {\n\n\t\tthis.progressBarInner.querySelectorAll( '.scrollbar-slide' ).forEach( slide => slide.remove() );\n\n\t\tconst scrollHeight = this.viewportElement.scrollHeight;\n\t\tconst viewportHeight = this.viewportElement.offsetHeight;\n\t\tconst viewportHeightFactor = viewportHeight / scrollHeight;\n\n\t\tthis.progressBarHeight = this.progressBarInner.offsetHeight;\n\t\tthis.playheadHeight = Math.max( viewportHeightFactor * this.progressBarHeight, MIN_PLAYHEAD_HEIGHT );\n\t\tthis.progressBarScrollableHeight = this.progressBarHeight - this.playheadHeight;\n\n\t\tconst progressSegmentHeight = viewportHeight / scrollHeight * this.progressBarHeight;\n\t\tconst spacing = Math.min( progressSegmentHeight / 8, MAX_PROGRESS_SPACING );\n\n\t\tthis.progressBarPlayhead.style.height = this.playheadHeight - spacing + 'px';\n\n\t\t// Don't show individual segments if they're too small\n\t\tif( progressSegmentHeight > MIN_PROGRESS_SEGMENT_HEIGHT ) {\n\n\t\t\tthis.slideTriggers.forEach( slideTrigger => {\n\n\t\t\t\tconst { page } = slideTrigger;\n\n\t\t\t\t// Visual representation of a slide\n\t\t\t\tpage.progressBarSlide = document.createElement( 'div' );\n\t\t\t\tpage.progressBarSlide.className = 'scrollbar-slide';\n\t\t\t\tpage.progressBarSlide.style.top = slideTrigger.range[0] * this.progressBarHeight + 'px';\n\t\t\t\tpage.progressBarSlide.style.height = ( slideTrigger.range[1] - slideTrigger.range[0] ) * this.progressBarHeight - spacing + 'px';\n\t\t\t\tpage.progressBarSlide.classList.toggle( 'has-triggers', page.scrollTriggers.length > 0 );\n\t\t\t\tthis.progressBarInner.appendChild( page.progressBarSlide );\n\n\t\t\t\t// Visual representations of each scroll trigger\n\t\t\t\tpage.scrollTriggerElements = page.scrollTriggers.map( ( trigger, i ) => {\n\n\t\t\t\t\tconst triggerElement = document.createElement( 'div' );\n\t\t\t\t\ttriggerElement.className = 'scrollbar-trigger';\n\t\t\t\t\ttriggerElement.style.top = ( trigger.range[0] - slideTrigger.range[0] ) * this.progressBarHeight + 'px';\n\t\t\t\t\ttriggerElement.style.height = ( trigger.range[1] - trigger.range[0] ) * this.progressBarHeight - spacing + 'px';\n\t\t\t\t\tpage.progressBarSlide.appendChild( triggerElement );\n\n\t\t\t\t\tif( i === 0 ) triggerElement.style.display = 'none';\n\n\t\t\t\t\treturn triggerElement;\n\n\t\t\t\t} );\n\n\t\t\t} );\n\n\t\t}\n\t\telse {\n\n\t\t\tthis.pages.forEach( page => page.progressBarSlide = null );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Reads the current scroll position and updates our active\n\t * trigger states accordingly.\n\t */\n\tsyncScrollPosition() {\n\n\t\tconst viewportHeight = this.viewportElement.offsetHeight;\n\t\tconst viewportHeightFactor = viewportHeight / this.viewportElement.scrollHeight;\n\n\t\tconst scrollTop = this.viewportElement.scrollTop;\n\t\tconst scrollHeight = this.viewportElement.scrollHeight - viewportHeight\n\t\tconst scrollProgress = Math.max( Math.min( scrollTop / scrollHeight, 1 ), 0 );\n\t\tconst scrollProgressMid = Math.max( Math.min( ( scrollTop + viewportHeight / 2 ) / this.viewportElement.scrollHeight, 1 ), 0 );\n\n\t\tlet activePage;\n\n\t\tthis.slideTriggers.forEach( ( trigger ) => {\n\t\t\tconst { page } = trigger;\n\n\t\t\tconst shouldPreload = scrollProgress >= trigger.range[0] - viewportHeightFactor*2 &&\n\t\t\t\t\t\t\t\t\t\t\t\t\t\tscrollProgress <= trigger.range[1] + viewportHeightFactor*2;\n\n\t\t\t// Load slides that are within the preload range\n\t\t\tif( shouldPreload && !page.loaded ) {\n\t\t\t\tpage.loaded = true;\n\t\t\t\tthis.Reveal.slideContent.load( page.slideElement );\n\t\t\t}\n\t\t\telse if( page.loaded ) {\n\t\t\t\tpage.loaded = false;\n\t\t\t\tthis.Reveal.slideContent.unload( page.slideElement );\n\t\t\t}\n\n\t\t\t// If we're within this trigger range, activate it\n\t\t\tif( scrollProgress >= trigger.range[0] && scrollProgress <= trigger.range[1] ) {\n\t\t\t\tthis.activateTrigger( trigger );\n\t\t\t\tactivePage = trigger.page;\n\t\t\t}\n\t\t\t// .. otherwise deactivate\n\t\t\telse if( trigger.active ) {\n\t\t\t\tthis.deactivateTrigger( trigger );\n\t\t\t}\n\t\t} );\n\n\t\t// Each page can have its own scroll triggers, check if any of those\n\t\t// need to be activated/deactivated\n\t\tif( activePage ) {\n\t\t\tactivePage.scrollTriggers.forEach( ( trigger ) => {\n\t\t\t\tif( scrollProgressMid >= trigger.range[0] && scrollProgressMid <= trigger.range[1] ) {\n\t\t\t\t\tthis.activateTrigger( trigger );\n\t\t\t\t}\n\t\t\t\telse if( trigger.active ) {\n\t\t\t\t\tthis.deactivateTrigger( trigger );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\t// Update our visual progress indication\n\t\tthis.setProgressBarValue( scrollTop / ( this.viewportElement.scrollHeight - viewportHeight ) );\n\n\t}\n\n\t/**\n\t * Moves the progress bar playhead to the specified position.\n\t *\n\t * @param {number} progress 0-1\n\t */\n\tsetProgressBarValue( progress ) {\n\n\t\tif( this.progressBar ) {\n\n\t\t\tthis.progressBarPlayhead.style.transform = `translateY(${progress * this.progressBarScrollableHeight}px)`;\n\n\t\t\tthis.getAllPages()\n\t\t\t\t.filter( page => page.progressBarSlide )\n\t\t\t\t.forEach( ( page ) => {\n\t\t\t\t\tpage.progressBarSlide.classList.toggle( 'active', page.active === true );\n\n\t\t\t\t\tpage.scrollTriggers.forEach( ( trigger, i ) => {\n\t\t\t\t\t\tpage.scrollTriggerElements[i].classList.toggle( 'active', page.active === true && trigger.active === true );\n\t\t\t\t\t} );\n\t\t\t\t} );\n\n\t\t\tthis.showProgressBar();\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Show the progress bar and, if configured, automatically hide\n\t * it after a delay.\n\t */\n\tshowProgressBar() {\n\n\t\tthis.progressBar.classList.add( 'visible' );\n\n\t\tclearTimeout( this.hideProgressBarTimeout );\n\n\t\tif( this.Reveal.getConfig().scrollProgress === 'auto' && !this.draggingProgressBar ) {\n\n\t\t\tthis.hideProgressBarTimeout = setTimeout( () => {\n\t\t\t\tif( this.progressBar ) {\n\t\t\t\t\tthis.progressBar.classList.remove( 'visible' );\n\t\t\t\t}\n\t\t\t}, HIDE_SCROLLBAR_TIMEOUT );\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Scroll to the previous page.\n\t */\n\tprev() {\n\n\t\tthis.viewportElement.scrollTop -= this.scrollTriggerHeight;\n\n\t}\n\n\t/**\n\t * Scroll to the next page.\n\t */\n\tnext() {\n\n\t\tthis.viewportElement.scrollTop += this.scrollTriggerHeight;\n\n\t}\n\n\t/**\n\t * Scrolls the given slide element into view.\n\t *\n\t * @param {HTMLElement} slideElement\n\t */\n\tscrollToSlide( slideElement ) {\n\n\t\t// If the scroll view isn't active yet, queue this action\n\t\tif( !this.active ) {\n\t\t\tthis.activatedCallbacks.push( () => this.scrollToSlide( slideElement ) );\n\t\t}\n\t\telse {\n\t\t\t// Find the trigger for this slide\n\t\t\tconst trigger = this.getScrollTriggerBySlide( slideElement );\n\n\t\t\tif( trigger ) {\n\t\t\t\t// Use the trigger's range to calculate the scroll position\n\t\t\t\tthis.viewportElement.scrollTop = trigger.range[0] * ( this.viewportElement.scrollHeight - this.viewportElement.offsetHeight );\n\t\t\t}\n\t\t}\n\n\t}\n\n\t/**\n\t * Persists the current scroll position to session storage\n\t * so that it can be restored.\n\t */\n\tstoreScrollPosition() {\n\n\t\tclearTimeout( this.storeScrollPositionTimeout );\n\n\t\tthis.storeScrollPositionTimeout = setTimeout( () => {\n\t\t\tsessionStorage.setItem( 'reveal-scroll-top', this.viewportElement.scrollTop );\n\t\t\tsessionStorage.setItem( 'reveal-scroll-origin', location.origin + location.pathname );\n\n\t\t\tthis.storeScrollPositionTimeout = null;\n\t\t}, 50 );\n\n\t}\n\n\t/**\n\t * Restores the scroll position when a deck is reloader.\n\t */\n\trestoreScrollPosition() {\n\n\t\tconst scrollPosition = sessionStorage.getItem( 'reveal-scroll-top' );\n\t\tconst scrollOrigin = sessionStorage.getItem( 'reveal-scroll-origin' );\n\n\t\tif( scrollPosition && scrollOrigin === location.origin + location.pathname ) {\n\t\t\tthis.viewportElement.scrollTop = parseInt( scrollPosition, 10 );\n\t\t}\n\n\t}\n\n\t/**\n\t * Activates the given page and starts its embedded content\n\t * if there is any.\n\t *\n\t * @param {object} page\n\t */\n\tactivatePage( page ) {\n\n\t\tif( !page.active ) {\n\n\t\t\tpage.active = true;\n\n\t\t\tconst { slideElement, backgroundElement, contentElement, indexh, indexv } = page;\n\n\t\t\tcontentElement.style.display = 'block';\n\n\t\t\tslideElement.classList.add( 'present' );\n\n\t\t\tif( backgroundElement ) {\n\t\t\t\tbackgroundElement.classList.add( 'present' );\n\t\t\t}\n\n\t\t\tthis.Reveal.setCurrentScrollPage( slideElement, indexh, indexv );\n\t\t\tthis.Reveal.backgrounds.bubbleSlideContrastClassToElement( slideElement, this.viewportElement );\n\n\t\t\t// If this page is part of an auto-animation there will be one\n\t\t\t// content element per auto-animated page. We need to show the\n\t\t\t// current page and hide all others.\n\t\t\tArray.from( contentElement.parentNode.querySelectorAll( '.scroll-page-content' ) ).forEach( sibling => {\n\t\t\t\tif( sibling !== contentElement ) {\n\t\t\t\t\tsibling.style.display = 'none';\n\t\t\t\t}\n\t\t\t});\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Deactivates the page after it has been visible.\n\t *\n\t * @param {object} page\n\t */\n\tdeactivatePage( page ) {\n\n\t\tif( page.active ) {\n\n\t\t\tpage.active = false;\n\t\t\tif( page.slideElement ) page.slideElement.classList.remove( 'present' );\n\t\t\tif( page.backgroundElement ) page.backgroundElement.classList.remove( 'present' );\n\n\t\t}\n\n\t}\n\n\tactivateTrigger( trigger ) {\n\n\t\tif( !trigger.active ) {\n\t\t\ttrigger.active = true;\n\t\t\ttrigger.activate();\n\t\t}\n\n\t}\n\n\tdeactivateTrigger( trigger ) {\n\n\t\tif( trigger.active ) {\n\t\t\ttrigger.active = false;\n\n\t\t\tif( trigger.deactivate ) {\n\t\t\t\ttrigger.deactivate();\n\t\t\t}\n\t\t}\n\n\t}\n\n\t/**\n\t * Retrieve a slide by its original h/v index (i.e. the indices the\n\t * slide had before being linearized).\n\t *\n\t * @param {number} h\n\t * @param {number} v\n\t * @returns {HTMLElement}\n\t */\n\tgetSlideByIndices( h, v ) {\n\n\t\tconst page = this.getAllPages().find( page => {\n\t\t\treturn page.indexh === h && page.indexv === v;\n\t\t} );\n\n\t\treturn page ? page.slideElement : null;\n\n\t}\n\n\t/**\n\t * Retrieve a list of all scroll triggers for the given slide\n\t * DOM element.\n\t *\n\t * @param {HTMLElement} slide\n\t * @returns {Array}\n\t */\n\tgetScrollTriggerBySlide( slide ) {\n\n\t\treturn this.slideTriggers.find( trigger => trigger.page.slideElement === slide );\n\n\t}\n\n\t/**\n\t * Get a list of all pages in the scroll view. This includes\n\t * both top-level slides and auto-animate steps.\n\t *\n\t * @returns {Array}\n\t */\n\tgetAllPages() {\n\n\t\treturn this.pages.flatMap( page => [page, ...(page.autoAnimatePages || [])] );\n\n\t}\n\n\tonScroll() {\n\n\t\tthis.syncScrollPosition();\n\t\tthis.storeScrollPosition();\n\n\t}\n\n\tget viewportElement() {\n\n\t\treturn this.Reveal.getViewportElement();\n\n\t}\n\n}\n","import { SLIDES_SELECTOR } from '../utils/constants.js'\nimport { queryAll, createStyleSheet } from '../utils/util.js'\n\n/**\n * Setups up our presentation for printing/exporting to PDF.\n */\nexport default class PrintView {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\t/**\n\t * Configures the presentation for printing to a static\n\t * PDF.\n\t */\n\tasync activate() {\n\n\t\tconst config = this.Reveal.getConfig();\n\t\tconst slides = queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR )\n\n\t\t// Compute slide numbers now, before we start duplicating slides\n\t\tconst injectPageNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber );\n\n\t\tconst slideSize = this.Reveal.getComputedSlideSize( window.innerWidth, window.innerHeight );\n\n\t\t// Dimensions of the PDF pages\n\t\tconst pageWidth = Math.floor( slideSize.width * ( 1 + config.margin ) ),\n\t\t\tpageHeight = Math.floor( slideSize.height * ( 1 + config.margin ) );\n\n\t\t// Dimensions of slides within the pages\n\t\tconst slideWidth = slideSize.width,\n\t\t\tslideHeight = slideSize.height;\n\n\t\tawait new Promise( requestAnimationFrame );\n\n\t\t// Let the browser know what page size we want to print\n\t\tcreateStyleSheet( '@page{size:'+ pageWidth +'px '+ pageHeight +'px; margin: 0px;}' );\n\n\t\t// Limit the size of certain elements to the dimensions of the slide\n\t\tcreateStyleSheet( '.reveal section>img, .reveal section>video, .reveal section>iframe{max-width: '+ slideWidth +'px; max-height:'+ slideHeight +'px}' );\n\n\t\tdocument.documentElement.classList.add( 'reveal-print', 'print-pdf' );\n\t\tdocument.body.style.width = pageWidth + 'px';\n\t\tdocument.body.style.height = pageHeight + 'px';\n\n\t\tconst viewportElement = this.Reveal.getViewportElement();\n\t\tlet presentationBackground;\n\t\tif( viewportElement ) {\n\t\t\tconst viewportStyles = window.getComputedStyle( viewportElement );\n\t\t\tif( viewportStyles && viewportStyles.background ) {\n\t\t\t\tpresentationBackground = viewportStyles.background;\n\t\t\t}\n\t\t}\n\n\t\t// Make sure stretch elements fit on slide\n\t\tawait new Promise( requestAnimationFrame );\n\t\tthis.Reveal.layoutSlideContents( slideWidth, slideHeight );\n\n\t\t// Batch scrollHeight access to prevent layout thrashing\n\t\tawait new Promise( requestAnimationFrame );\n\n\t\tconst slideScrollHeights = slides.map( slide => slide.scrollHeight );\n\n\t\tconst pages = [];\n\t\tconst pageContainer = slides[0].parentNode;\n\t\tlet slideNumber = 1;\n\n\t\t// Slide and slide background layout\n\t\tslides.forEach( function( slide, index ) {\n\n\t\t\t// Vertical stacks are not centred since their section\n\t\t\t// children will be\n\t\t\tif( slide.classList.contains( 'stack' ) === false ) {\n\t\t\t\t// Center the slide inside of the page, giving the slide some margin\n\t\t\t\tlet left = ( pageWidth - slideWidth ) / 2;\n\t\t\t\tlet top = ( pageHeight - slideHeight ) / 2;\n\n\t\t\t\tconst contentHeight = slideScrollHeights[ index ];\n\t\t\t\tlet numberOfPages = Math.max( Math.ceil( contentHeight / pageHeight ), 1 );\n\n\t\t\t\t// Adhere to configured pages per slide limit\n\t\t\t\tnumberOfPages = Math.min( numberOfPages, config.pdfMaxPagesPerSlide );\n\n\t\t\t\t// Center slides vertically\n\t\t\t\tif( numberOfPages === 1 && config.center || slide.classList.contains( 'center' ) ) {\n\t\t\t\t\ttop = Math.max( ( pageHeight - contentHeight ) / 2, 0 );\n\t\t\t\t}\n\n\t\t\t\t// Wrap the slide in a page element and hide its overflow\n\t\t\t\t// so that no page ever flows onto another\n\t\t\t\tconst page = document.createElement( 'div' );\n\t\t\t\tpages.push( page );\n\n\t\t\t\tpage.className = 'pdf-page';\n\t\t\t\tpage.style.height = ( ( pageHeight + config.pdfPageHeightOffset ) * numberOfPages ) + 'px';\n\n\t\t\t\t// Copy the presentation-wide background to each individual\n\t\t\t\t// page when printing\n\t\t\t\tif( presentationBackground ) {\n\t\t\t\t\tpage.style.background = presentationBackground;\n\t\t\t\t}\n\n\t\t\t\tpage.appendChild( slide );\n\n\t\t\t\t// Position the slide inside of the page\n\t\t\t\tslide.style.left = left + 'px';\n\t\t\t\tslide.style.top = top + 'px';\n\t\t\t\tslide.style.width = slideWidth + 'px';\n\n\t\t\t\tthis.Reveal.slideContent.layout( slide );\n\n\t\t\t\tif( slide.slideBackgroundElement ) {\n\t\t\t\t\tpage.insertBefore( slide.slideBackgroundElement, slide );\n\t\t\t\t}\n\n\t\t\t\t// Inject notes if `showNotes` is enabled\n\t\t\t\tif( config.showNotes ) {\n\n\t\t\t\t\t// Are there notes for this slide?\n\t\t\t\t\tconst notes = this.Reveal.getSlideNotes( slide );\n\t\t\t\t\tif( notes ) {\n\n\t\t\t\t\t\tconst notesSpacing = 8;\n\t\t\t\t\t\tconst notesLayout = typeof config.showNotes === 'string' ? config.showNotes : 'inline';\n\t\t\t\t\t\tconst notesElement = document.createElement( 'div' );\n\t\t\t\t\t\tnotesElement.classList.add( 'speaker-notes' );\n\t\t\t\t\t\tnotesElement.classList.add( 'speaker-notes-pdf' );\n\t\t\t\t\t\tnotesElement.setAttribute( 'data-layout', notesLayout );\n\t\t\t\t\t\tnotesElement.innerHTML = notes;\n\n\t\t\t\t\t\tif( notesLayout === 'separate-page' ) {\n\t\t\t\t\t\t\tpages.push( notesElement );\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tnotesElement.style.left = notesSpacing + 'px';\n\t\t\t\t\t\t\tnotesElement.style.bottom = notesSpacing + 'px';\n\t\t\t\t\t\t\tnotesElement.style.width = ( pageWidth - notesSpacing*2 ) + 'px';\n\t\t\t\t\t\t\tpage.appendChild( notesElement );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// Inject page numbers if `slideNumbers` are enabled\n\t\t\t\tif( injectPageNumbers ) {\n\t\t\t\t\tconst numberElement = document.createElement( 'div' );\n\t\t\t\t\tnumberElement.classList.add( 'slide-number' );\n\t\t\t\t\tnumberElement.classList.add( 'slide-number-pdf' );\n\t\t\t\t\tnumberElement.innerHTML = slideNumber++;\n\t\t\t\t\tpage.appendChild( numberElement );\n\t\t\t\t}\n\n\t\t\t\t// Copy page and show fragments one after another\n\t\t\t\tif( config.pdfSeparateFragments ) {\n\n\t\t\t\t\t// Each fragment 'group' is an array containing one or more\n\t\t\t\t\t// fragments. Multiple fragments that appear at the same time\n\t\t\t\t\t// are part of the same group.\n\t\t\t\t\tconst fragmentGroups = this.Reveal.fragments.sort( page.querySelectorAll( '.fragment' ), true );\n\n\t\t\t\t\tlet previousFragmentStep;\n\n\t\t\t\t\tfragmentGroups.forEach( function( fragments, index ) {\n\n\t\t\t\t\t\t// Remove 'current-fragment' from the previous group\n\t\t\t\t\t\tif( previousFragmentStep ) {\n\t\t\t\t\t\t\tpreviousFragmentStep.forEach( function( fragment ) {\n\t\t\t\t\t\t\t\tfragment.classList.remove( 'current-fragment' );\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Show the fragments for the current index\n\t\t\t\t\t\tfragments.forEach( function( fragment ) {\n\t\t\t\t\t\t\tfragment.classList.add( 'visible', 'current-fragment' );\n\t\t\t\t\t\t}, this );\n\n\t\t\t\t\t\t// Create a separate page for the current fragment state\n\t\t\t\t\t\tconst clonedPage = page.cloneNode( true );\n\n\t\t\t\t\t\t// Inject unique page numbers for fragments\n\t\t\t\t\t\tif( injectPageNumbers ) {\n\t\t\t\t\t\t\tconst numberElement = clonedPage.querySelector( '.slide-number-pdf' );\n\t\t\t\t\t\t\tconst fragmentNumber = index + 1;\n\t\t\t\t\t\t\tnumberElement.innerHTML += '.' + fragmentNumber;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tpages.push( clonedPage );\n\n\t\t\t\t\t\tpreviousFragmentStep = fragments;\n\n\t\t\t\t\t}, this );\n\n\t\t\t\t\t// Reset the first/original page so that all fragments are hidden\n\t\t\t\t\tfragmentGroups.forEach( function( fragments ) {\n\t\t\t\t\t\tfragments.forEach( function( fragment ) {\n\t\t\t\t\t\t\tfragment.classList.remove( 'visible', 'current-fragment' );\n\t\t\t\t\t\t} );\n\t\t\t\t\t} );\n\n\t\t\t\t}\n\t\t\t\t// Show all fragments\n\t\t\t\telse {\n\t\t\t\t\tqueryAll( page, '.fragment:not(.fade-out)' ).forEach( function( fragment ) {\n\t\t\t\t\t\tfragment.classList.add( 'visible' );\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}, this );\n\n\t\tawait new Promise( requestAnimationFrame );\n\n\t\tpages.forEach( page => pageContainer.appendChild( page ) );\n\n\t\t// Re-run JS-based content layout after the slide is added to page DOM\n\t\tthis.Reveal.slideContent.layout( this.Reveal.getSlidesElement() );\n\n\t\t// Notify subscribers that the PDF layout is good to go\n\t\tthis.Reveal.dispatchEvent({ type: 'pdf-ready' });\n\n\t\tviewportElement.classList.remove( 'loading-scroll-mode' );\n\n\t}\n\n\t/**\n\t * Checks if the print mode is/should be activated.\n\t */\n\tisActive() {\n\n\t\treturn this.Reveal.getConfig().view === 'print';\n\n\t}\n\n}","import { extend, queryAll } from '../utils/util.js'\n\n/**\n * Handles sorting and navigation of slide fragments.\n * Fragments are elements within a slide that are\n * revealed/animated incrementally.\n */\nexport default class Fragments {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tif( config.fragments === false ) {\n\t\t\tthis.disable();\n\t\t}\n\t\telse if( oldConfig.fragments === false ) {\n\t\t\tthis.enable();\n\t\t}\n\n\t}\n\n\t/**\n\t * If fragments are disabled in the deck, they should all be\n\t * visible rather than stepped through.\n\t */\n\tdisable() {\n\n\t\tqueryAll( this.Reveal.getSlidesElement(), '.fragment' ).forEach( element => {\n\t\t\telement.classList.add( 'visible' );\n\t\t\telement.classList.remove( 'current-fragment' );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Reverse of #disable(). Only called if fragments have\n\t * previously been disabled.\n\t */\n\tenable() {\n\n\t\tqueryAll( this.Reveal.getSlidesElement(), '.fragment' ).forEach( element => {\n\t\t\telement.classList.remove( 'visible' );\n\t\t\telement.classList.remove( 'current-fragment' );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Returns an object describing the available fragment\n\t * directions.\n\t *\n\t * @return {{prev: boolean, next: boolean}}\n\t */\n\tavailableRoutes() {\n\n\t\tlet currentSlide = this.Reveal.getCurrentSlide();\n\t\tif( currentSlide && this.Reveal.getConfig().fragments ) {\n\t\t\tlet fragments = currentSlide.querySelectorAll( '.fragment:not(.disabled)' );\n\t\t\tlet hiddenFragments = currentSlide.querySelectorAll( '.fragment:not(.disabled):not(.visible)' );\n\n\t\t\treturn {\n\t\t\t\tprev: fragments.length - hiddenFragments.length > 0,\n\t\t\t\tnext: !!hiddenFragments.length\n\t\t\t};\n\t\t}\n\t\telse {\n\t\t\treturn { prev: false, next: false };\n\t\t}\n\n\t}\n\n\t/**\n\t * Return a sorted fragments list, ordered by an increasing\n\t * \"data-fragment-index\" attribute.\n\t *\n\t * Fragments will be revealed in the order that they are returned by\n\t * this function, so you can use the index attributes to control the\n\t * order of fragment appearance.\n\t *\n\t * To maintain a sensible default fragment order, fragments are presumed\n\t * to be passed in document order. This function adds a \"fragment-index\"\n\t * attribute to each node if such an attribute is not already present,\n\t * and sets that attribute to an integer value which is the position of\n\t * the fragment within the fragments list.\n\t *\n\t * @param {object[]|*} fragments\n\t * @param {boolean} grouped If true the returned array will contain\n\t * nested arrays for all fragments with the same index\n\t * @return {object[]} sorted Sorted array of fragments\n\t */\n\tsort( fragments, grouped = false ) {\n\n\t\tfragments = Array.from( fragments );\n\n\t\tlet ordered = [],\n\t\t\tunordered = [],\n\t\t\tsorted = [];\n\n\t\t// Group ordered and unordered elements\n\t\tfragments.forEach( fragment => {\n\t\t\tif( fragment.hasAttribute( 'data-fragment-index' ) ) {\n\t\t\t\tlet index = parseInt( fragment.getAttribute( 'data-fragment-index' ), 10 );\n\n\t\t\t\tif( !ordered[index] ) {\n\t\t\t\t\tordered[index] = [];\n\t\t\t\t}\n\n\t\t\t\tordered[index].push( fragment );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tunordered.push( [ fragment ] );\n\t\t\t}\n\t\t} );\n\n\t\t// Append fragments without explicit indices in their\n\t\t// DOM order\n\t\tordered = ordered.concat( unordered );\n\n\t\t// Manually count the index up per group to ensure there\n\t\t// are no gaps\n\t\tlet index = 0;\n\n\t\t// Push all fragments in their sorted order to an array,\n\t\t// this flattens the groups\n\t\tordered.forEach( group => {\n\t\t\tgroup.forEach( fragment => {\n\t\t\t\tsorted.push( fragment );\n\t\t\t\tfragment.setAttribute( 'data-fragment-index', index );\n\t\t\t} );\n\n\t\t\tindex ++;\n\t\t} );\n\n\t\treturn grouped === true ? ordered : sorted;\n\n\t}\n\n\t/**\n\t * Sorts and formats all of fragments in the\n\t * presentation.\n\t */\n\tsortAll() {\n\n\t\tthis.Reveal.getHorizontalSlides().forEach( horizontalSlide => {\n\n\t\t\tlet verticalSlides = queryAll( horizontalSlide, 'section' );\n\t\t\tverticalSlides.forEach( ( verticalSlide, y ) => {\n\n\t\t\t\tthis.sort( verticalSlide.querySelectorAll( '.fragment' ) );\n\n\t\t\t}, this );\n\n\t\t\tif( verticalSlides.length === 0 ) this.sort( horizontalSlide.querySelectorAll( '.fragment' ) );\n\n\t\t} );\n\n\t}\n\n\t/**\n\t * Refreshes the fragments on the current slide so that they\n\t * have the appropriate classes (.visible + .current-fragment).\n\t *\n\t * @param {number} [index] The index of the current fragment\n\t * @param {array} [fragments] Array containing all fragments\n\t * in the current slide\n\t *\n\t * @return {{shown: array, hidden: array}}\n\t */\n\tupdate( index, fragments, slide = this.Reveal.getCurrentSlide() ) {\n\n\t\tlet changedFragments = {\n\t\t\tshown: [],\n\t\t\thidden: []\n\t\t};\n\n\t\tif( slide && this.Reveal.getConfig().fragments ) {\n\n\t\t\tfragments = fragments || this.sort( slide.querySelectorAll( '.fragment' ) );\n\n\t\t\tif( fragments.length ) {\n\n\t\t\t\tlet maxIndex = 0;\n\n\t\t\t\tif( typeof index !== 'number' ) {\n\t\t\t\t\tlet currentFragment = this.sort( slide.querySelectorAll( '.fragment.visible' ) ).pop();\n\t\t\t\t\tif( currentFragment ) {\n\t\t\t\t\t\tindex = parseInt( currentFragment.getAttribute( 'data-fragment-index' ) || 0, 10 );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tArray.from( fragments ).forEach( ( el, i ) => {\n\n\t\t\t\t\tif( el.hasAttribute( 'data-fragment-index' ) ) {\n\t\t\t\t\t\ti = parseInt( el.getAttribute( 'data-fragment-index' ), 10 );\n\t\t\t\t\t}\n\n\t\t\t\t\tmaxIndex = Math.max( maxIndex, i );\n\n\t\t\t\t\t// Visible fragments\n\t\t\t\t\tif( i <= index ) {\n\t\t\t\t\t\tlet wasVisible = el.classList.contains( 'visible' )\n\t\t\t\t\t\tel.classList.add( 'visible' );\n\t\t\t\t\t\tel.classList.remove( 'current-fragment' );\n\n\t\t\t\t\t\tif( i === index ) {\n\t\t\t\t\t\t\t// Announce the fragments one by one to the Screen Reader\n\t\t\t\t\t\t\tthis.Reveal.announceStatus( this.Reveal.getStatusText( el ) );\n\n\t\t\t\t\t\t\tel.classList.add( 'current-fragment' );\n\t\t\t\t\t\t\tthis.Reveal.slideContent.startEmbeddedContent( el );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif( !wasVisible ) {\n\t\t\t\t\t\t\tchangedFragments.shown.push( el )\n\t\t\t\t\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\t\t\t\t\ttarget: el,\n\t\t\t\t\t\t\t\ttype: 'visible',\n\t\t\t\t\t\t\t\tbubbles: false\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\t// Hidden fragments\n\t\t\t\t\telse {\n\t\t\t\t\t\tlet wasVisible = el.classList.contains( 'visible' )\n\t\t\t\t\t\tel.classList.remove( 'visible' );\n\t\t\t\t\t\tel.classList.remove( 'current-fragment' );\n\n\t\t\t\t\t\tif( wasVisible ) {\n\t\t\t\t\t\t\tthis.Reveal.slideContent.stopEmbeddedContent( el );\n\t\t\t\t\t\t\tchangedFragments.hidden.push( el );\n\t\t\t\t\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\t\t\t\t\ttarget: el,\n\t\t\t\t\t\t\t\ttype: 'hidden',\n\t\t\t\t\t\t\t\tbubbles: false\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t} );\n\n\t\t\t\t// Write the current fragment index to the slide
.\n\t\t\t\t// This can be used by end users to apply styles based on\n\t\t\t\t// the current fragment index.\n\t\t\t\tindex = typeof index === 'number' ? index : -1;\n\t\t\t\tindex = Math.max( Math.min( index, maxIndex ), -1 );\n\t\t\t\tslide.setAttribute( 'data-fragment', index );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn changedFragments;\n\n\t}\n\n\t/**\n\t * Formats the fragments on the given slide so that they have\n\t * valid indices. Call this if fragments are changed in the DOM\n\t * after reveal.js has already initialized.\n\t *\n\t * @param {HTMLElement} slide\n\t * @return {Array} a list of the HTML fragments that were synced\n\t */\n\tsync( slide = this.Reveal.getCurrentSlide() ) {\n\n\t\treturn this.sort( slide.querySelectorAll( '.fragment' ) );\n\n\t}\n\n\t/**\n\t * Navigate to the specified slide fragment.\n\t *\n\t * @param {?number} index The index of the fragment that\n\t * should be shown, -1 means all are invisible\n\t * @param {number} offset Integer offset to apply to the\n\t * fragment index\n\t *\n\t * @return {boolean} true if a change was made in any\n\t * fragments visibility as part of this call\n\t */\n\tgoto( index, offset = 0 ) {\n\n\t\tlet currentSlide = this.Reveal.getCurrentSlide();\n\t\tif( currentSlide && this.Reveal.getConfig().fragments ) {\n\n\t\t\tlet fragments = this.sort( currentSlide.querySelectorAll( '.fragment:not(.disabled)' ) );\n\t\t\tif( fragments.length ) {\n\n\t\t\t\t// If no index is specified, find the current\n\t\t\t\tif( typeof index !== 'number' ) {\n\t\t\t\t\tlet lastVisibleFragment = this.sort( currentSlide.querySelectorAll( '.fragment:not(.disabled).visible' ) ).pop();\n\n\t\t\t\t\tif( lastVisibleFragment ) {\n\t\t\t\t\t\tindex = parseInt( lastVisibleFragment.getAttribute( 'data-fragment-index' ) || 0, 10 );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tindex = -1;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Apply the offset if there is one\n\t\t\t\tindex += offset;\n\n\t\t\t\tlet changedFragments = this.update( index, fragments );\n\n\t\t\t\tif( changedFragments.hidden.length ) {\n\t\t\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\t\t\ttype: 'fragmenthidden',\n\t\t\t\t\t\tdata: {\n\t\t\t\t\t\t\tfragment: changedFragments.hidden[0],\n\t\t\t\t\t\t\tfragments: changedFragments.hidden\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\n\t\t\t\tif( changedFragments.shown.length ) {\n\t\t\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\t\t\ttype: 'fragmentshown',\n\t\t\t\t\t\tdata: {\n\t\t\t\t\t\t\tfragment: changedFragments.shown[0],\n\t\t\t\t\t\t\tfragments: changedFragments.shown\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\n\t\t\t\tthis.Reveal.controls.update();\n\t\t\t\tthis.Reveal.progress.update();\n\n\t\t\t\tif( this.Reveal.getConfig().fragmentInURL ) {\n\t\t\t\t\tthis.Reveal.location.writeURL();\n\t\t\t\t}\n\n\t\t\t\treturn !!( changedFragments.shown.length || changedFragments.hidden.length );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn false;\n\n\t}\n\n\t/**\n\t * Navigate to the next slide fragment.\n\t *\n\t * @return {boolean} true if there was a next fragment,\n\t * false otherwise\n\t */\n\tnext() {\n\n\t\treturn this.goto( null, 1 );\n\n\t}\n\n\t/**\n\t * Navigate to the previous slide fragment.\n\t *\n\t * @return {boolean} true if there was a previous fragment,\n\t * false otherwise\n\t */\n\tprev() {\n\n\t\treturn this.goto( null, -1 );\n\n\t}\n\n}","import { SLIDES_SELECTOR } from '../utils/constants.js'\nimport { extend, queryAll, transformElement } from '../utils/util.js'\n\n/**\n * Handles all logic related to the overview mode\n * (birds-eye view of all slides).\n */\nexport default class Overview {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.active = false;\n\n\t\tthis.onSlideClicked = this.onSlideClicked.bind( this );\n\n\t}\n\n\t/**\n\t * Displays the overview of slides (quick nav) by scaling\n\t * down and arranging all slide elements.\n\t */\n\tactivate() {\n\n\t\t// Only proceed if enabled in config\n\t\tif( this.Reveal.getConfig().overview && !this.Reveal.isScrollView() && !this.isActive() ) {\n\n\t\t\tthis.active = true;\n\n\t\t\tthis.Reveal.getRevealElement().classList.add( 'overview' );\n\n\t\t\t// Don't auto-slide while in overview mode\n\t\t\tthis.Reveal.cancelAutoSlide();\n\n\t\t\t// Move the backgrounds element into the slide container to\n\t\t\t// that the same scaling is applied\n\t\t\tthis.Reveal.getSlidesElement().appendChild( this.Reveal.getBackgroundsElement() );\n\n\t\t\t// Clicking on an overview slide navigates to it\n\t\t\tqueryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( slide => {\n\t\t\t\tif( !slide.classList.contains( 'stack' ) ) {\n\t\t\t\t\tslide.addEventListener( 'click', this.onSlideClicked, true );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t// Calculate slide sizes\n\t\t\tconst margin = 70;\n\t\t\tconst slideSize = this.Reveal.getComputedSlideSize();\n\t\t\tthis.overviewSlideWidth = slideSize.width + margin;\n\t\t\tthis.overviewSlideHeight = slideSize.height + margin;\n\n\t\t\t// Reverse in RTL mode\n\t\t\tif( this.Reveal.getConfig().rtl ) {\n\t\t\t\tthis.overviewSlideWidth = -this.overviewSlideWidth;\n\t\t\t}\n\n\t\t\tthis.Reveal.updateSlidesVisibility();\n\n\t\t\tthis.layout();\n\t\t\tthis.update();\n\n\t\t\tthis.Reveal.layout();\n\n\t\t\tconst indices = this.Reveal.getIndices();\n\n\t\t\t// Notify observers of the overview showing\n\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\ttype: 'overviewshown',\n\t\t\t\tdata: {\n\t\t\t\t\t'indexh': indices.h,\n\t\t\t\t\t'indexv': indices.v,\n\t\t\t\t\t'currentSlide': this.Reveal.getCurrentSlide()\n\t\t\t\t}\n\t\t\t});\n\n\t\t}\n\n\t}\n\n\t/**\n\t * Uses CSS transforms to position all slides in a grid for\n\t * display inside of the overview mode.\n\t */\n\tlayout() {\n\n\t\t// Layout slides\n\t\tthis.Reveal.getHorizontalSlides().forEach( ( hslide, h ) => {\n\t\t\thslide.setAttribute( 'data-index-h', h );\n\t\t\ttransformElement( hslide, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' );\n\n\t\t\tif( hslide.classList.contains( 'stack' ) ) {\n\n\t\t\t\tqueryAll( hslide, 'section' ).forEach( ( vslide, v ) => {\n\t\t\t\t\tvslide.setAttribute( 'data-index-h', h );\n\t\t\t\t\tvslide.setAttribute( 'data-index-v', v );\n\n\t\t\t\t\ttransformElement( vslide, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' );\n\t\t\t\t} );\n\n\t\t\t}\n\t\t} );\n\n\t\t// Layout slide backgrounds\n\t\tArray.from( this.Reveal.getBackgroundsElement().childNodes ).forEach( ( hbackground, h ) => {\n\t\t\ttransformElement( hbackground, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' );\n\n\t\t\tqueryAll( hbackground, '.slide-background' ).forEach( ( vbackground, v ) => {\n\t\t\t\ttransformElement( vbackground, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' );\n\t\t\t} );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Moves the overview viewport to the current slides.\n\t * Called each time the current slide changes.\n\t */\n\tupdate() {\n\n\t\tconst vmin = Math.min( window.innerWidth, window.innerHeight );\n\t\tconst scale = Math.max( vmin / 5, 150 ) / vmin;\n\t\tconst indices = this.Reveal.getIndices();\n\n\t\tthis.Reveal.transformSlides( {\n\t\t\toverview: [\n\t\t\t\t'scale('+ scale +')',\n\t\t\t\t'translateX('+ ( -indices.h * this.overviewSlideWidth ) +'px)',\n\t\t\t\t'translateY('+ ( -indices.v * this.overviewSlideHeight ) +'px)'\n\t\t\t].join( ' ' )\n\t\t} );\n\n\t}\n\n\t/**\n\t * Exits the slide overview and enters the currently\n\t * active slide.\n\t */\n\tdeactivate() {\n\n\t\t// Only proceed if enabled in config\n\t\tif( this.Reveal.getConfig().overview ) {\n\n\t\t\tthis.active = false;\n\n\t\t\tthis.Reveal.getRevealElement().classList.remove( 'overview' );\n\n\t\t\t// Temporarily add a class so that transitions can do different things\n\t\t\t// depending on whether they are exiting/entering overview, or just\n\t\t\t// moving from slide to slide\n\t\t\tthis.Reveal.getRevealElement().classList.add( 'overview-deactivating' );\n\n\t\t\tsetTimeout( () => {\n\t\t\t\tthis.Reveal.getRevealElement().classList.remove( 'overview-deactivating' );\n\t\t\t}, 1 );\n\n\t\t\t// Move the background element back out\n\t\t\tthis.Reveal.getRevealElement().appendChild( this.Reveal.getBackgroundsElement() );\n\n\t\t\t// Clean up changes made to slides\n\t\t\tqueryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( slide => {\n\t\t\t\ttransformElement( slide, '' );\n\n\t\t\t\tslide.removeEventListener( 'click', this.onSlideClicked, true );\n\t\t\t} );\n\n\t\t\t// Clean up changes made to backgrounds\n\t\t\tqueryAll( this.Reveal.getBackgroundsElement(), '.slide-background' ).forEach( background => {\n\t\t\t\ttransformElement( background, '' );\n\t\t\t} );\n\n\t\t\tthis.Reveal.transformSlides( { overview: '' } );\n\n\t\t\tconst indices = this.Reveal.getIndices();\n\n\t\t\tthis.Reveal.slide( indices.h, indices.v );\n\t\t\tthis.Reveal.layout();\n\t\t\tthis.Reveal.cueAutoSlide();\n\n\t\t\t// Notify observers of the overview hiding\n\t\t\tthis.Reveal.dispatchEvent({\n\t\t\t\ttype: 'overviewhidden',\n\t\t\t\tdata: {\n\t\t\t\t\t'indexh': indices.h,\n\t\t\t\t\t'indexv': indices.v,\n\t\t\t\t\t'currentSlide': this.Reveal.getCurrentSlide()\n\t\t\t\t}\n\t\t\t});\n\n\t\t}\n\t}\n\n\t/**\n\t * Toggles the slide overview mode on and off.\n\t *\n\t * @param {Boolean} [override] Flag which overrides the\n\t * toggle logic and forcibly sets the desired state. True means\n\t * overview is open, false means it's closed.\n\t */\n\ttoggle( override ) {\n\n\t\tif( typeof override === 'boolean' ) {\n\t\t\toverride ? this.activate() : this.deactivate();\n\t\t}\n\t\telse {\n\t\t\tthis.isActive() ? this.deactivate() : this.activate();\n\t\t}\n\n\t}\n\n\t/**\n\t * Checks if the overview is currently active.\n\t *\n\t * @return {Boolean} true if the overview is active,\n\t * false otherwise\n\t */\n\tisActive() {\n\n\t\treturn this.active;\n\n\t}\n\n\t/**\n\t * Invoked when a slide is and we're in the overview.\n\t *\n\t * @param {object} event\n\t */\n\tonSlideClicked( event ) {\n\n\t\tif( this.isActive() ) {\n\t\t\tevent.preventDefault();\n\n\t\t\tlet element = event.target;\n\n\t\t\twhile( element && !element.nodeName.match( /section/gi ) ) {\n\t\t\t\telement = element.parentNode;\n\t\t\t}\n\n\t\t\tif( element && !element.classList.contains( 'disabled' ) ) {\n\n\t\t\t\tthis.deactivate();\n\n\t\t\t\tif( element.nodeName.match( /section/gi ) ) {\n\t\t\t\t\tlet h = parseInt( element.getAttribute( 'data-index-h' ), 10 ),\n\t\t\t\t\t\tv = parseInt( element.getAttribute( 'data-index-v' ), 10 );\n\n\t\t\t\t\tthis.Reveal.slide( h, v );\n\t\t\t\t}\n\n\t\t\t}\n\t\t}\n\n\t}\n\n}","import { enterFullscreen } from '../utils/util.js'\n\n/**\n * Handles all reveal.js keyboard interactions.\n */\nexport default class Keyboard {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\t// A key:value map of keyboard keys and descriptions of\n\t\t// the actions they trigger\n\t\tthis.shortcuts = {};\n\n\t\t// Holds custom key code mappings\n\t\tthis.bindings = {};\n\n\t\tthis.onDocumentKeyDown = this.onDocumentKeyDown.bind( this );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tif( config.navigationMode === 'linear' ) {\n\t\t\tthis.shortcuts['→ , ↓ , SPACE , N , L , J'] = 'Next slide';\n\t\t\tthis.shortcuts['← , ↑ , P , H , K'] = 'Previous slide';\n\t\t}\n\t\telse {\n\t\t\tthis.shortcuts['N , SPACE'] = 'Next slide';\n\t\t\tthis.shortcuts['P , Shift SPACE'] = 'Previous slide';\n\t\t\tthis.shortcuts['← , H'] = 'Navigate left';\n\t\t\tthis.shortcuts['→ , L'] = 'Navigate right';\n\t\t\tthis.shortcuts['↑ , K'] = 'Navigate up';\n\t\t\tthis.shortcuts['↓ , J'] = 'Navigate down';\n\t\t}\n\n\t\tthis.shortcuts['Alt + ←/↑/→/↓'] = 'Navigate without fragments';\n\t\tthis.shortcuts['Shift + ←/↑/→/↓'] = 'Jump to first/last slide';\n\t\tthis.shortcuts['B , .'] = 'Pause';\n\t\tthis.shortcuts['F'] = 'Fullscreen';\n\t\tthis.shortcuts['G'] = 'Jump to slide';\n\t\tthis.shortcuts['ESC, O'] = 'Slide overview';\n\n\t}\n\n\t/**\n\t * Starts listening for keyboard events.\n\t */\n\tbind() {\n\n\t\tdocument.addEventListener( 'keydown', this.onDocumentKeyDown, false );\n\n\t}\n\n\t/**\n\t * Stops listening for keyboard events.\n\t */\n\tunbind() {\n\n\t\tdocument.removeEventListener( 'keydown', this.onDocumentKeyDown, false );\n\n\t}\n\n\t/**\n\t * Add a custom key binding with optional description to\n\t * be added to the help screen.\n\t */\n\taddKeyBinding( binding, callback ) {\n\n\t\tif( typeof binding === 'object' && binding.keyCode ) {\n\t\t\tthis.bindings[binding.keyCode] = {\n\t\t\t\tcallback: callback,\n\t\t\t\tkey: binding.key,\n\t\t\t\tdescription: binding.description\n\t\t\t};\n\t\t}\n\t\telse {\n\t\t\tthis.bindings[binding] = {\n\t\t\t\tcallback: callback,\n\t\t\t\tkey: null,\n\t\t\t\tdescription: null\n\t\t\t};\n\t\t}\n\n\t}\n\n\t/**\n\t * Removes the specified custom key binding.\n\t */\n\tremoveKeyBinding( keyCode ) {\n\n\t\tdelete this.bindings[keyCode];\n\n\t}\n\n\t/**\n\t * Programmatically triggers a keyboard event\n\t *\n\t * @param {int} keyCode\n\t */\n\ttriggerKey( keyCode ) {\n\n\t\tthis.onDocumentKeyDown( { keyCode } );\n\n\t}\n\n\t/**\n\t * Registers a new shortcut to include in the help overlay\n\t *\n\t * @param {String} key\n\t * @param {String} value\n\t */\n\tregisterKeyboardShortcut( key, value ) {\n\n\t\tthis.shortcuts[key] = value;\n\n\t}\n\n\tgetShortcuts() {\n\n\t\treturn this.shortcuts;\n\n\t}\n\n\tgetBindings() {\n\n\t\treturn this.bindings;\n\n\t}\n\n\t/**\n\t * Handler for the document level 'keydown' event.\n\t *\n\t * @param {object} event\n\t */\n\tonDocumentKeyDown( event ) {\n\n\t\tlet config = this.Reveal.getConfig();\n\n\t\t// If there's a condition specified and it returns false,\n\t\t// ignore this event\n\t\tif( typeof config.keyboardCondition === 'function' && config.keyboardCondition(event) === false ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// If keyboardCondition is set, only capture keyboard events\n\t\t// for embedded decks when they are focused\n\t\tif( config.keyboardCondition === 'focused' && !this.Reveal.isFocused() ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Shorthand\n\t\tlet keyCode = event.keyCode;\n\n\t\t// Remember if auto-sliding was paused so we can toggle it\n\t\tlet autoSlideWasPaused = !this.Reveal.isAutoSliding();\n\n\t\tthis.Reveal.onUserInput( event );\n\n\t\t// Is there a focused element that could be using the keyboard?\n\t\tlet activeElementIsCE = document.activeElement && document.activeElement.isContentEditable === true;\n\t\tlet activeElementIsInput = document.activeElement && document.activeElement.tagName && /input|textarea/i.test( document.activeElement.tagName );\n\t\tlet activeElementIsNotes = document.activeElement && document.activeElement.className && /speaker-notes/i.test( document.activeElement.className);\n\n\t\t// Whitelist certain modifiers for slide navigation shortcuts\n\t\tlet keyCodeUsesModifier = [32, 37, 38, 39, 40, 78, 80, 191].indexOf( event.keyCode ) !== -1;\n\n\t\t// Prevent all other events when a modifier is pressed\n\t\tlet unusedModifier = \t!( keyCodeUsesModifier && event.shiftKey || event.altKey ) &&\n\t\t\t\t\t\t\t\t( event.shiftKey || event.altKey || event.ctrlKey || event.metaKey );\n\n\t\t// Disregard the event if there's a focused element or a\n\t\t// keyboard modifier key is present\n\t\tif( activeElementIsCE || activeElementIsInput || activeElementIsNotes || unusedModifier ) return;\n\n\t\t// While paused only allow resume keyboard events; 'b', 'v', '.'\n\t\tlet resumeKeyCodes = [66,86,190,191];\n\t\tlet key;\n\n\t\t// Custom key bindings for togglePause should be able to resume\n\t\tif( typeof config.keyboard === 'object' ) {\n\t\t\tfor( key in config.keyboard ) {\n\t\t\t\tif( config.keyboard[key] === 'togglePause' ) {\n\t\t\t\t\tresumeKeyCodes.push( parseInt( key, 10 ) );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif( this.Reveal.isPaused() && resumeKeyCodes.indexOf( keyCode ) === -1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Use linear navigation if we're configured to OR if\n\t\t// the presentation is one-dimensional\n\t\tlet useLinearMode = config.navigationMode === 'linear' || !this.Reveal.hasHorizontalSlides() || !this.Reveal.hasVerticalSlides();\n\n\t\tlet triggered = false;\n\n\t\t// 1. User defined key bindings\n\t\tif( typeof config.keyboard === 'object' ) {\n\n\t\t\tfor( key in config.keyboard ) {\n\n\t\t\t\t// Check if this binding matches the pressed key\n\t\t\t\tif( parseInt( key, 10 ) === keyCode ) {\n\n\t\t\t\t\tlet value = config.keyboard[ key ];\n\n\t\t\t\t\t// Callback function\n\t\t\t\t\tif( typeof value === 'function' ) {\n\t\t\t\t\t\tvalue.apply( null, [ event ] );\n\t\t\t\t\t}\n\t\t\t\t\t// String shortcuts to reveal.js API\n\t\t\t\t\telse if( typeof value === 'string' && typeof this.Reveal[ value ] === 'function' ) {\n\t\t\t\t\t\tthis.Reveal[ value ].call();\n\t\t\t\t\t}\n\n\t\t\t\t\ttriggered = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// 2. Registered custom key bindings\n\t\tif( triggered === false ) {\n\n\t\t\tfor( key in this.bindings ) {\n\n\t\t\t\t// Check if this binding matches the pressed key\n\t\t\t\tif( parseInt( key, 10 ) === keyCode ) {\n\n\t\t\t\t\tlet action = this.bindings[ key ].callback;\n\n\t\t\t\t\t// Callback function\n\t\t\t\t\tif( typeof action === 'function' ) {\n\t\t\t\t\t\taction.apply( null, [ event ] );\n\t\t\t\t\t}\n\t\t\t\t\t// String shortcuts to reveal.js API\n\t\t\t\t\telse if( typeof action === 'string' && typeof this.Reveal[ action ] === 'function' ) {\n\t\t\t\t\t\tthis.Reveal[ action ].call();\n\t\t\t\t\t}\n\n\t\t\t\t\ttriggered = true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// 3. System defined key bindings\n\t\tif( triggered === false ) {\n\n\t\t\t// Assume true and try to prove false\n\t\t\ttriggered = true;\n\n\t\t\t// P, PAGE UP\n\t\t\tif( keyCode === 80 || keyCode === 33 ) {\n\t\t\t\tthis.Reveal.prev({skipFragments: event.altKey});\n\t\t\t}\n\t\t\t// N, PAGE DOWN\n\t\t\telse if( keyCode === 78 || keyCode === 34 ) {\n\t\t\t\tthis.Reveal.next({skipFragments: event.altKey});\n\t\t\t}\n\t\t\t// H, LEFT\n\t\t\telse if( keyCode === 72 || keyCode === 37 ) {\n\t\t\t\tif( event.shiftKey ) {\n\t\t\t\t\tthis.Reveal.slide( 0 );\n\t\t\t\t}\n\t\t\t\telse if( !this.Reveal.overview.isActive() && useLinearMode ) {\n\t\t\t\t\tthis.Reveal.prev({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.Reveal.left({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t}\n\t\t\t// L, RIGHT\n\t\t\telse if( keyCode === 76 || keyCode === 39 ) {\n\t\t\t\tif( event.shiftKey ) {\n\t\t\t\t\tthis.Reveal.slide( this.Reveal.getHorizontalSlides().length - 1 );\n\t\t\t\t}\n\t\t\t\telse if( !this.Reveal.overview.isActive() && useLinearMode ) {\n\t\t\t\t\tthis.Reveal.next({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.Reveal.right({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t}\n\t\t\t// K, UP\n\t\t\telse if( keyCode === 75 || keyCode === 38 ) {\n\t\t\t\tif( event.shiftKey ) {\n\t\t\t\t\tthis.Reveal.slide( undefined, 0 );\n\t\t\t\t}\n\t\t\t\telse if( !this.Reveal.overview.isActive() && useLinearMode ) {\n\t\t\t\t\tthis.Reveal.prev({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.Reveal.up({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t}\n\t\t\t// J, DOWN\n\t\t\telse if( keyCode === 74 || keyCode === 40 ) {\n\t\t\t\tif( event.shiftKey ) {\n\t\t\t\t\tthis.Reveal.slide( undefined, Number.MAX_VALUE );\n\t\t\t\t}\n\t\t\t\telse if( !this.Reveal.overview.isActive() && useLinearMode ) {\n\t\t\t\t\tthis.Reveal.next({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.Reveal.down({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t}\n\t\t\t// HOME\n\t\t\telse if( keyCode === 36 ) {\n\t\t\t\tthis.Reveal.slide( 0 );\n\t\t\t}\n\t\t\t// END\n\t\t\telse if( keyCode === 35 ) {\n\t\t\t\tthis.Reveal.slide( this.Reveal.getHorizontalSlides().length - 1 );\n\t\t\t}\n\t\t\t// SPACE\n\t\t\telse if( keyCode === 32 ) {\n\t\t\t\tif( this.Reveal.overview.isActive() ) {\n\t\t\t\t\tthis.Reveal.overview.deactivate();\n\t\t\t\t}\n\t\t\t\tif( event.shiftKey ) {\n\t\t\t\t\tthis.Reveal.prev({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.Reveal.next({skipFragments: event.altKey});\n\t\t\t\t}\n\t\t\t}\n\t\t\t// TWO-SPOT, SEMICOLON, B, V, PERIOD, LOGITECH PRESENTER TOOLS \"BLACK SCREEN\" BUTTON\n\t\t\telse if( [58, 59, 66, 86, 190].includes( keyCode ) || ( keyCode === 191 && !event.shiftKey ) ) {\n\t\t\t\tthis.Reveal.togglePause();\n\t\t\t}\n\t\t\t// F\n\t\t\telse if( keyCode === 70 ) {\n\t\t\t\tenterFullscreen( config.embedded ? this.Reveal.getViewportElement() : document.documentElement );\n\t\t\t}\n\t\t\t// A\n\t\t\telse if( keyCode === 65 ) {\n\t\t\t\tif( config.autoSlideStoppable ) {\n\t\t\t\t\tthis.Reveal.toggleAutoSlide( autoSlideWasPaused );\n\t\t\t\t}\n\t\t\t}\n\t\t\t// G\n\t\t\telse if( keyCode === 71 ) {\n\t\t\t\tif( config.jumpToSlide ) {\n\t\t\t\t\tthis.Reveal.toggleJumpToSlide();\n\t\t\t\t}\n\t\t\t}\n\t\t\t// ?\n\t\t\telse if( keyCode === 191 && event.shiftKey ) {\n\t\t\t\tthis.Reveal.toggleHelp();\n\t\t\t}\n\t\t\telse {\n\t\t\t\ttriggered = false;\n\t\t\t}\n\n\t\t}\n\n\t\t// If the input resulted in a triggered action we should prevent\n\t\t// the browsers default behavior\n\t\tif( triggered ) {\n\t\t\tevent.preventDefault && event.preventDefault();\n\t\t}\n\t\t// ESC or O key\n\t\telse if( keyCode === 27 || keyCode === 79 ) {\n\t\t\tif( this.Reveal.closeOverlay() === false ) {\n\t\t\t\tthis.Reveal.overview.toggle();\n\t\t\t}\n\n\t\t\tevent.preventDefault && event.preventDefault();\n\t\t}\n\n\t\t// If auto-sliding is enabled we need to cue up\n\t\t// another timeout\n\t\tthis.Reveal.cueAutoSlide();\n\n\t}\n\n}","/**\n * Reads and writes the URL based on reveal.js' current state.\n */\nexport default class Location {\n\n\t// The minimum number of milliseconds that must pass between\n\t// calls to history.replaceState\n\tMAX_REPLACE_STATE_FREQUENCY = 1000\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\t// Delays updates to the URL due to a Chrome thumbnailer bug\n\t\tthis.writeURLTimeout = 0;\n\n\t\tthis.replaceStateTimestamp = 0;\n\n\t\tthis.onWindowHashChange = this.onWindowHashChange.bind( this );\n\n\t}\n\n\tbind() {\n\n\t\twindow.addEventListener( 'hashchange', this.onWindowHashChange, false );\n\n\t}\n\n\tunbind() {\n\n\t\twindow.removeEventListener( 'hashchange', this.onWindowHashChange, false );\n\n\t}\n\n\t/**\n\t * Returns the slide indices for the given hash link.\n\t *\n\t * @param {string} [hash] the hash string that we want to\n\t * find the indices for\n\t *\n\t * @returns slide indices or null\n\t */\n\tgetIndicesFromHash( hash=window.location.hash, options={} ) {\n\n\t\t// Attempt to parse the hash as either an index or name\n\t\tlet name = hash.replace( /^#\\/?/, '' );\n\t\tlet bits = name.split( '/' );\n\n\t\t// If the first bit is not fully numeric and there is a name we\n\t\t// can assume that this is a named link\n\t\tif( !/^[0-9]*$/.test( bits[0] ) && name.length ) {\n\t\t\tlet slide;\n\n\t\t\tlet f;\n\n\t\t\t// Parse named links with fragments (#/named-link/2)\n\t\t\tif( /\\/[-\\d]+$/g.test( name ) ) {\n\t\t\t\tf = parseInt( name.split( '/' ).pop(), 10 );\n\t\t\t\tf = isNaN(f) ? undefined : f;\n\t\t\t\tname = name.split( '/' ).shift();\n\t\t\t}\n\n\t\t\t// Ensure the named link is a valid HTML ID attribute\n\t\t\ttry {\n\t\t\t\tslide = document\n\t\t\t\t\t.getElementById( decodeURIComponent( name ) )\n\t\t\t\t\t.closest('.slides section');\n\t\t\t}\n\t\t\tcatch ( error ) { }\n\n\t\t\tif( slide ) {\n\t\t\t\treturn { ...this.Reveal.getIndices( slide ), f };\n\t\t\t}\n\t\t}\n\t\telse {\n\t\t\tconst config = this.Reveal.getConfig();\n\t\t\tlet hashIndexBase = config.hashOneBasedIndex || options.oneBasedIndex ? 1 : 0;\n\n\t\t\t// Read the index components of the hash\n\t\t\tlet h = ( parseInt( bits[0], 10 ) - hashIndexBase ) || 0,\n\t\t\t\tv = ( parseInt( bits[1], 10 ) - hashIndexBase ) || 0,\n\t\t\t\tf;\n\n\t\t\tif( config.fragmentInURL ) {\n\t\t\t\tf = parseInt( bits[2], 10 );\n\t\t\t\tif( isNaN( f ) ) {\n\t\t\t\t\tf = undefined;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn { h, v, f };\n\t\t}\n\n\t\t// The hash couldn't be parsed or no matching named link was found\n\t\treturn null\n\n\t}\n\n\t/**\n\t * Reads the current URL (hash) and navigates accordingly.\n\t */\n\treadURL() {\n\n\t\tconst currentIndices = this.Reveal.getIndices();\n\t\tconst newIndices = this.getIndicesFromHash();\n\n\t\tif( newIndices ) {\n\t\t\tif( ( newIndices.h !== currentIndices.h || newIndices.v !== currentIndices.v || newIndices.f !== undefined ) ) {\n\t\t\t\t\tthis.Reveal.slide( newIndices.h, newIndices.v, newIndices.f );\n\t\t\t}\n\t\t}\n\t\t// If no new indices are available, we're trying to navigate to\n\t\t// a slide hash that does not exist\n\t\telse {\n\t\t\tthis.Reveal.slide( currentIndices.h || 0, currentIndices.v || 0 );\n\t\t}\n\n\t}\n\n\t/**\n\t * Updates the page URL (hash) to reflect the current\n\t * state.\n\t *\n\t * @param {number} delay The time in ms to wait before\n\t * writing the hash\n\t */\n\twriteURL( delay ) {\n\n\t\tlet config = this.Reveal.getConfig();\n\t\tlet currentSlide = this.Reveal.getCurrentSlide();\n\n\t\t// Make sure there's never more than one timeout running\n\t\tclearTimeout( this.writeURLTimeout );\n\n\t\t// If a delay is specified, timeout this call\n\t\tif( typeof delay === 'number' ) {\n\t\t\tthis.writeURLTimeout = setTimeout( this.writeURL, delay );\n\t\t}\n\t\telse if( currentSlide ) {\n\n\t\t\tlet hash = this.getHash();\n\n\t\t\t// If we're configured to push to history OR the history\n\t\t\t// API is not available.\n\t\t\tif( config.history ) {\n\t\t\t\twindow.location.hash = hash;\n\t\t\t}\n\t\t\t// If we're configured to reflect the current slide in the\n\t\t\t// URL without pushing to history.\n\t\t\telse if( config.hash ) {\n\t\t\t\t// If the hash is empty, don't add it to the URL\n\t\t\t\tif( hash === '/' ) {\n\t\t\t\t\tthis.debouncedReplaceState( window.location.pathname + window.location.search );\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tthis.debouncedReplaceState( '#' + hash );\n\t\t\t\t}\n\t\t\t}\n\t\t\t// UPDATE: The below nuking of all hash changes breaks\n\t\t\t// anchors on pages where reveal.js is running. Removed\n\t\t\t// in 4.0. Why was it here in the first place? ¯\\_(ツ)_/¯\n\t\t\t//\n\t\t\t// If history and hash are both disabled, a hash may still\n\t\t\t// be added to the URL by clicking on a href with a hash\n\t\t\t// target. Counter this by always removing the hash.\n\t\t\t// else {\n\t\t\t// \twindow.history.replaceState( null, null, window.location.pathname + window.location.search );\n\t\t\t// }\n\n\t\t}\n\n\t}\n\n\treplaceState( url ) {\n\n\t\twindow.history.replaceState( null, null, url );\n\t\tthis.replaceStateTimestamp = Date.now();\n\n\t}\n\n\tdebouncedReplaceState( url ) {\n\n\t\tclearTimeout( this.replaceStateTimeout );\n\n\t\tif( Date.now() - this.replaceStateTimestamp > this.MAX_REPLACE_STATE_FREQUENCY ) {\n\t\t\tthis.replaceState( url );\n\t\t}\n\t\telse {\n\t\t\tthis.replaceStateTimeout = setTimeout( () => this.replaceState( url ), this.MAX_REPLACE_STATE_FREQUENCY );\n\t\t}\n\n\t}\n\n\t/**\n\t * Return a hash URL that will resolve to the given slide location.\n\t *\n\t * @param {HTMLElement} [slide=currentSlide] The slide to link to\n\t */\n\tgetHash( slide ) {\n\n\t\tlet url = '/';\n\n\t\t// Attempt to create a named link based on the slide's ID\n\t\tlet s = slide || this.Reveal.getCurrentSlide();\n\t\tlet id = s ? s.getAttribute( 'id' ) : null;\n\t\tif( id ) {\n\t\t\tid = encodeURIComponent( id );\n\t\t}\n\n\t\tlet index = this.Reveal.getIndices( slide );\n\t\tif( !this.Reveal.getConfig().fragmentInURL ) {\n\t\t\tindex.f = undefined;\n\t\t}\n\n\t\t// If the current slide has an ID, use that as a named link,\n\t\t// but we don't support named links with a fragment index\n\t\tif( typeof id === 'string' && id.length ) {\n\t\t\turl = '/' + id;\n\n\t\t\t// If there is also a fragment, append that at the end\n\t\t\t// of the named link, like: #/named-link/2\n\t\t\tif( index.f >= 0 ) url += '/' + index.f;\n\t\t}\n\t\t// Otherwise use the /h/v index\n\t\telse {\n\t\t\tlet hashIndexBase = this.Reveal.getConfig().hashOneBasedIndex ? 1 : 0;\n\t\t\tif( index.h > 0 || index.v > 0 || index.f >= 0 ) url += index.h + hashIndexBase;\n\t\t\tif( index.v > 0 || index.f >= 0 ) url += '/' + (index.v + hashIndexBase );\n\t\t\tif( index.f >= 0 ) url += '/' + index.f;\n\t\t}\n\n\t\treturn url;\n\n\t}\n\n\t/**\n\t * Handler for the window level 'hashchange' event.\n\t *\n\t * @param {object} [event]\n\t */\n\tonWindowHashChange( event ) {\n\n\t\tthis.readURL();\n\n\t}\n\n}","import { queryAll } from '../utils/util.js'\nimport { isAndroid } from '../utils/device.js'\n\n/**\n * Manages our presentation controls. This includes both\n * the built-in control arrows as well as event monitoring\n * of any elements within the presentation with either of the\n * following helper classes:\n * - .navigate-up\n * - .navigate-right\n * - .navigate-down\n * - .navigate-left\n * - .navigate-next\n * - .navigate-prev\n */\nexport default class Controls {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.onNavigateLeftClicked = this.onNavigateLeftClicked.bind( this );\n\t\tthis.onNavigateRightClicked = this.onNavigateRightClicked.bind( this );\n\t\tthis.onNavigateUpClicked = this.onNavigateUpClicked.bind( this );\n\t\tthis.onNavigateDownClicked = this.onNavigateDownClicked.bind( this );\n\t\tthis.onNavigatePrevClicked = this.onNavigatePrevClicked.bind( this );\n\t\tthis.onNavigateNextClicked = this.onNavigateNextClicked.bind( this );\n\n\t}\n\n\trender() {\n\n\t\tconst rtl = this.Reveal.getConfig().rtl;\n\t\tconst revealElement = this.Reveal.getRevealElement();\n\n\t\tthis.element = document.createElement( 'aside' );\n\t\tthis.element.className = 'controls';\n\t\tthis.element.innerHTML =\n\t\t\t`\n\t\t\t\n\t\t\t\n\t\t\t`;\n\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\n\t\t// There can be multiple instances of controls throughout the page\n\t\tthis.controlsLeft = queryAll( revealElement, '.navigate-left' );\n\t\tthis.controlsRight = queryAll( revealElement, '.navigate-right' );\n\t\tthis.controlsUp = queryAll( revealElement, '.navigate-up' );\n\t\tthis.controlsDown = queryAll( revealElement, '.navigate-down' );\n\t\tthis.controlsPrev = queryAll( revealElement, '.navigate-prev' );\n\t\tthis.controlsNext = queryAll( revealElement, '.navigate-next' );\n\n\t\t// The left, right and down arrows in the standard reveal.js controls\n\t\tthis.controlsRightArrow = this.element.querySelector( '.navigate-right' );\n\t\tthis.controlsLeftArrow = this.element.querySelector( '.navigate-left' );\n\t\tthis.controlsDownArrow = this.element.querySelector( '.navigate-down' );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tthis.element.style.display = config.controls ? 'block' : 'none';\n\n\t\tthis.element.setAttribute( 'data-controls-layout', config.controlsLayout );\n\t\tthis.element.setAttribute( 'data-controls-back-arrows', config.controlsBackArrows );\n\n\t}\n\n\tbind() {\n\n\t\t// Listen to both touch and click events, in case the device\n\t\t// supports both\n\t\tlet pointerEvents = [ 'touchstart', 'click' ];\n\n\t\t// Only support touch for Android, fixes double navigations in\n\t\t// stock browser\n\t\tif( isAndroid ) {\n\t\t\tpointerEvents = [ 'touchstart' ];\n\t\t}\n\n\t\tpointerEvents.forEach( eventName => {\n\t\t\tthis.controlsLeft.forEach( el => el.addEventListener( eventName, this.onNavigateLeftClicked, false ) );\n\t\t\tthis.controlsRight.forEach( el => el.addEventListener( eventName, this.onNavigateRightClicked, false ) );\n\t\t\tthis.controlsUp.forEach( el => el.addEventListener( eventName, this.onNavigateUpClicked, false ) );\n\t\t\tthis.controlsDown.forEach( el => el.addEventListener( eventName, this.onNavigateDownClicked, false ) );\n\t\t\tthis.controlsPrev.forEach( el => el.addEventListener( eventName, this.onNavigatePrevClicked, false ) );\n\t\t\tthis.controlsNext.forEach( el => el.addEventListener( eventName, this.onNavigateNextClicked, false ) );\n\t\t} );\n\n\t}\n\n\tunbind() {\n\n\t\t[ 'touchstart', 'click' ].forEach( eventName => {\n\t\t\tthis.controlsLeft.forEach( el => el.removeEventListener( eventName, this.onNavigateLeftClicked, false ) );\n\t\t\tthis.controlsRight.forEach( el => el.removeEventListener( eventName, this.onNavigateRightClicked, false ) );\n\t\t\tthis.controlsUp.forEach( el => el.removeEventListener( eventName, this.onNavigateUpClicked, false ) );\n\t\t\tthis.controlsDown.forEach( el => el.removeEventListener( eventName, this.onNavigateDownClicked, false ) );\n\t\t\tthis.controlsPrev.forEach( el => el.removeEventListener( eventName, this.onNavigatePrevClicked, false ) );\n\t\t\tthis.controlsNext.forEach( el => el.removeEventListener( eventName, this.onNavigateNextClicked, false ) );\n\t\t} );\n\n\t}\n\n\t/**\n\t * Updates the state of all control/navigation arrows.\n\t */\n\tupdate() {\n\n\t\tlet routes = this.Reveal.availableRoutes();\n\n\t\t// Remove the 'enabled' class from all directions\n\t\t[...this.controlsLeft, ...this.controlsRight, ...this.controlsUp, ...this.controlsDown, ...this.controlsPrev, ...this.controlsNext].forEach( node => {\n\t\t\tnode.classList.remove( 'enabled', 'fragmented' );\n\n\t\t\t// Set 'disabled' attribute on all directions\n\t\t\tnode.setAttribute( 'disabled', 'disabled' );\n\t\t} );\n\n\t\t// Add the 'enabled' class to the available routes; remove 'disabled' attribute to enable buttons\n\t\tif( routes.left ) this.controlsLeft.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\tif( routes.right ) this.controlsRight.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\tif( routes.up ) this.controlsUp.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\tif( routes.down ) this.controlsDown.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\n\t\t// Prev/next buttons\n\t\tif( routes.left || routes.up ) this.controlsPrev.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\tif( routes.right || routes.down ) this.controlsNext.forEach( el => { el.classList.add( 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\n\t\t// Highlight fragment directions\n\t\tlet currentSlide = this.Reveal.getCurrentSlide();\n\t\tif( currentSlide ) {\n\n\t\t\tlet fragmentsRoutes = this.Reveal.fragments.availableRoutes();\n\n\t\t\t// Always apply fragment decorator to prev/next buttons\n\t\t\tif( fragmentsRoutes.prev ) this.controlsPrev.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\t\tif( fragmentsRoutes.next ) this.controlsNext.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\n\t\t\t// Apply fragment decorators to directional buttons based on\n\t\t\t// what slide axis they are in\n\t\t\tif( this.Reveal.isVerticalSlide( currentSlide ) ) {\n\t\t\t\tif( fragmentsRoutes.prev ) this.controlsUp.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\t\t\tif( fragmentsRoutes.next ) this.controlsDown.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tif( fragmentsRoutes.prev ) this.controlsLeft.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\t\t\tif( fragmentsRoutes.next ) this.controlsRight.forEach( el => { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute( 'disabled' ); } );\n\t\t\t}\n\n\t\t}\n\n\t\tif( this.Reveal.getConfig().controlsTutorial ) {\n\n\t\t\tlet indices = this.Reveal.getIndices();\n\n\t\t\t// Highlight control arrows with an animation to ensure\n\t\t\t// that the viewer knows how to navigate\n\t\t\tif( !this.Reveal.hasNavigatedVertically() && routes.down ) {\n\t\t\t\tthis.controlsDownArrow.classList.add( 'highlight' );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tthis.controlsDownArrow.classList.remove( 'highlight' );\n\n\t\t\t\tif( this.Reveal.getConfig().rtl ) {\n\n\t\t\t\t\tif( !this.Reveal.hasNavigatedHorizontally() && routes.left && indices.v === 0 ) {\n\t\t\t\t\t\tthis.controlsLeftArrow.classList.add( 'highlight' );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.controlsLeftArrow.classList.remove( 'highlight' );\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tif( !this.Reveal.hasNavigatedHorizontally() && routes.right && indices.v === 0 ) {\n\t\t\t\t\t\tthis.controlsRightArrow.classList.add( 'highlight' );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.controlsRightArrow.classList.remove( 'highlight' );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tdestroy() {\n\n\t\tthis.unbind();\n\t\tthis.element.remove();\n\n\t}\n\n\t/**\n\t * Event handlers for navigation control buttons.\n\t */\n\tonNavigateLeftClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tif( this.Reveal.getConfig().navigationMode === 'linear' ) {\n\t\t\tthis.Reveal.prev();\n\t\t}\n\t\telse {\n\t\t\tthis.Reveal.left();\n\t\t}\n\n\t}\n\n\tonNavigateRightClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tif( this.Reveal.getConfig().navigationMode === 'linear' ) {\n\t\t\tthis.Reveal.next();\n\t\t}\n\t\telse {\n\t\t\tthis.Reveal.right();\n\t\t}\n\n\t}\n\n\tonNavigateUpClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tthis.Reveal.up();\n\n\t}\n\n\tonNavigateDownClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tthis.Reveal.down();\n\n\t}\n\n\tonNavigatePrevClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tthis.Reveal.prev();\n\n\t}\n\n\tonNavigateNextClicked( event ) {\n\n\t\tevent.preventDefault();\n\t\tthis.Reveal.onUserInput();\n\n\t\tthis.Reveal.next();\n\n\t}\n\n\n}","/**\n * Creates a visual progress bar for the presentation.\n */\nexport default class Progress {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.onProgressClicked = this.onProgressClicked.bind( this );\n\n\t}\n\n\trender() {\n\n\t\tthis.element = document.createElement( 'div' );\n\t\tthis.element.className = 'progress';\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\n\t\tthis.bar = document.createElement( 'span' );\n\t\tthis.element.appendChild( this.bar );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tthis.element.style.display = config.progress ? 'block' : 'none';\n\n\t}\n\n\tbind() {\n\n\t\tif( this.Reveal.getConfig().progress && this.element ) {\n\t\t\tthis.element.addEventListener( 'click', this.onProgressClicked, false );\n\t\t}\n\n\t}\n\n\tunbind() {\n\n\t\tif ( this.Reveal.getConfig().progress && this.element ) {\n\t\t\tthis.element.removeEventListener( 'click', this.onProgressClicked, false );\n\t\t}\n\n\t}\n\n\t/**\n\t * Updates the progress bar to reflect the current slide.\n\t */\n\tupdate() {\n\n\t\t// Update progress if enabled\n\t\tif( this.Reveal.getConfig().progress && this.bar ) {\n\n\t\t\tlet scale = this.Reveal.getProgress();\n\n\t\t\t// Don't fill the progress bar if there's only one slide\n\t\t\tif( this.Reveal.getTotalSlides() < 2 ) {\n\t\t\t\tscale = 0;\n\t\t\t}\n\n\t\t\tthis.bar.style.transform = 'scaleX('+ scale +')';\n\n\t\t}\n\n\t}\n\n\tgetMaxWidth() {\n\n\t\treturn this.Reveal.getRevealElement().offsetWidth;\n\n\t}\n\n\t/**\n\t * Clicking on the progress bar results in a navigation to the\n\t * closest approximate horizontal slide using this equation:\n\t *\n\t * ( clickX / presentationWidth ) * numberOfSlides\n\t *\n\t * @param {object} event\n\t */\n\tonProgressClicked( event ) {\n\n\t\tthis.Reveal.onUserInput( event );\n\n\t\tevent.preventDefault();\n\n\t\tlet slides = this.Reveal.getSlides();\n\t\tlet slidesTotal = slides.length;\n\t\tlet slideIndex = Math.floor( ( event.clientX / this.getMaxWidth() ) * slidesTotal );\n\n\t\tif( this.Reveal.getConfig().rtl ) {\n\t\t\tslideIndex = slidesTotal - slideIndex;\n\t\t}\n\n\t\tlet targetIndices = this.Reveal.getIndices(slides[slideIndex]);\n\t\tthis.Reveal.slide( targetIndices.h, targetIndices.v );\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.element.remove();\n\n\t}\n\n}","/**\n * Handles hiding of the pointer/cursor when inactive.\n */\nexport default class Pointer {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\t// Throttles mouse wheel navigation\n\t\tthis.lastMouseWheelStep = 0;\n\n\t\t// Is the mouse pointer currently hidden from view\n\t\tthis.cursorHidden = false;\n\n\t\t// Timeout used to determine when the cursor is inactive\n\t\tthis.cursorInactiveTimeout = 0;\n\n\t\tthis.onDocumentCursorActive = this.onDocumentCursorActive.bind( this );\n\t\tthis.onDocumentMouseScroll = this.onDocumentMouseScroll.bind( this );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tif( config.mouseWheel ) {\n\t\t\tdocument.addEventListener( 'wheel', this.onDocumentMouseScroll, false );\n\t\t}\n\t\telse {\n\t\t\tdocument.removeEventListener( 'wheel', this.onDocumentMouseScroll, false );\n\t\t}\n\n\t\t// Auto-hide the mouse pointer when its inactive\n\t\tif( config.hideInactiveCursor ) {\n\t\t\tdocument.addEventListener( 'mousemove', this.onDocumentCursorActive, false );\n\t\t\tdocument.addEventListener( 'mousedown', this.onDocumentCursorActive, false );\n\t\t}\n\t\telse {\n\t\t\tthis.showCursor();\n\n\t\t\tdocument.removeEventListener( 'mousemove', this.onDocumentCursorActive, false );\n\t\t\tdocument.removeEventListener( 'mousedown', this.onDocumentCursorActive, false );\n\t\t}\n\n\t}\n\n\t/**\n\t * Shows the mouse pointer after it has been hidden with\n\t * #hideCursor.\n\t */\n\tshowCursor() {\n\n\t\tif( this.cursorHidden ) {\n\t\t\tthis.cursorHidden = false;\n\t\t\tthis.Reveal.getRevealElement().style.cursor = '';\n\t\t}\n\n\t}\n\n\t/**\n\t * Hides the mouse pointer when it's on top of the .reveal\n\t * container.\n\t */\n\thideCursor() {\n\n\t\tif( this.cursorHidden === false ) {\n\t\t\tthis.cursorHidden = true;\n\t\t\tthis.Reveal.getRevealElement().style.cursor = 'none';\n\t\t}\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.showCursor();\n\n\t\tdocument.removeEventListener( 'wheel', this.onDocumentMouseScroll, false );\n\t\tdocument.removeEventListener( 'mousemove', this.onDocumentCursorActive, false );\n\t\tdocument.removeEventListener( 'mousedown', this.onDocumentCursorActive, false );\n\n\t}\n\n\t/**\n\t * Called whenever there is mouse input at the document level\n\t * to determine if the cursor is active or not.\n\t *\n\t * @param {object} event\n\t */\n\tonDocumentCursorActive( event ) {\n\n\t\tthis.showCursor();\n\n\t\tclearTimeout( this.cursorInactiveTimeout );\n\n\t\tthis.cursorInactiveTimeout = setTimeout( this.hideCursor.bind( this ), this.Reveal.getConfig().hideCursorTime );\n\n\t}\n\n\t/**\n\t * Handles mouse wheel scrolling, throttled to avoid skipping\n\t * multiple slides.\n\t *\n\t * @param {object} event\n\t */\n\tonDocumentMouseScroll( event ) {\n\n\t\tif( Date.now() - this.lastMouseWheelStep > 1000 ) {\n\n\t\t\tthis.lastMouseWheelStep = Date.now();\n\n\t\t\tlet delta = event.detail || -event.wheelDelta;\n\t\t\tif( delta > 0 ) {\n\t\t\t\tthis.Reveal.next();\n\t\t\t}\n\t\t\telse if( delta < 0 ) {\n\t\t\t\tthis.Reveal.prev();\n\t\t\t}\n\n\t\t}\n\n\t}\n\n}\n","/**\n * Loads a JavaScript file from the given URL and executes it.\n *\n * @param {string} url Address of the .js file to load\n * @param {function} callback Method to invoke when the script\n * has loaded and executed\n */\nexport const loadScript = ( url, callback ) => {\n\n\tconst script = document.createElement( 'script' );\n\tscript.type = 'text/javascript';\n\tscript.async = false;\n\tscript.defer = false;\n\tscript.src = url;\n\n\tif( typeof callback === 'function' ) {\n\n\t\t// Success callback\n\t\tscript.onload = script.onreadystatechange = event => {\n\t\t\tif( event.type === 'load' || /loaded|complete/.test( script.readyState ) ) {\n\n\t\t\t\t// Kill event listeners\n\t\t\t\tscript.onload = script.onreadystatechange = script.onerror = null;\n\n\t\t\t\tcallback();\n\n\t\t\t}\n\t\t};\n\n\t\t// Error callback\n\t\tscript.onerror = err => {\n\n\t\t\t// Kill event listeners\n\t\t\tscript.onload = script.onreadystatechange = script.onerror = null;\n\n\t\t\tcallback( new Error( 'Failed loading script: ' + script.src + '\\n' + err ) );\n\n\t\t};\n\n\t}\n\n\t// Append the script at the end of \n\tconst head = document.querySelector( 'head' );\n\thead.insertBefore( script, head.lastChild );\n\n}","import { loadScript } from '../utils/loader.js'\n\n/**\n * Manages loading and registering of reveal.js plugins.\n */\nexport default class Plugins {\n\n\tconstructor( reveal ) {\n\n\t\tthis.Reveal = reveal;\n\n\t\t// Flags our current state (idle -> loading -> loaded)\n\t\tthis.state = 'idle';\n\n\t\t// An id:instance map of currently registered plugins\n\t\tthis.registeredPlugins = {};\n\n\t\tthis.asyncDependencies = [];\n\n\t}\n\n\t/**\n\t * Loads reveal.js dependencies, registers and\n\t * initializes plugins.\n\t *\n\t * Plugins are direct references to a reveal.js plugin\n\t * object that we register and initialize after any\n\t * synchronous dependencies have loaded.\n\t *\n\t * Dependencies are defined via the 'dependencies' config\n\t * option and will be loaded prior to starting reveal.js.\n\t * Some dependencies may have an 'async' flag, if so they\n\t * will load after reveal.js has been started up.\n\t */\n\tload( plugins, dependencies ) {\n\n\t\tthis.state = 'loading';\n\n\t\tplugins.forEach( this.registerPlugin.bind( this ) );\n\n\t\treturn new Promise( resolve => {\n\n\t\t\tlet scripts = [],\n\t\t\t\tscriptsToLoad = 0;\n\n\t\t\tdependencies.forEach( s => {\n\t\t\t\t// Load if there's no condition or the condition is truthy\n\t\t\t\tif( !s.condition || s.condition() ) {\n\t\t\t\t\tif( s.async ) {\n\t\t\t\t\t\tthis.asyncDependencies.push( s );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tscripts.push( s );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tif( scripts.length ) {\n\t\t\t\tscriptsToLoad = scripts.length;\n\n\t\t\t\tconst scriptLoadedCallback = (s) => {\n\t\t\t\t\tif( s && typeof s.callback === 'function' ) s.callback();\n\n\t\t\t\t\tif( --scriptsToLoad === 0 ) {\n\t\t\t\t\t\tthis.initPlugins().then( resolve );\n\t\t\t\t\t}\n\t\t\t\t};\n\n\t\t\t\t// Load synchronous scripts\n\t\t\t\tscripts.forEach( s => {\n\t\t\t\t\tif( typeof s.id === 'string' ) {\n\t\t\t\t\t\tthis.registerPlugin( s );\n\t\t\t\t\t\tscriptLoadedCallback( s );\n\t\t\t\t\t}\n\t\t\t\t\telse if( typeof s.src === 'string' ) {\n\t\t\t\t\t\tloadScript( s.src, () => scriptLoadedCallback(s) );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tconsole.warn( 'Unrecognized plugin format', s );\n\t\t\t\t\t\tscriptLoadedCallback();\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t}\n\t\t\telse {\n\t\t\t\tthis.initPlugins().then( resolve );\n\t\t\t}\n\n\t\t} );\n\n\t}\n\n\t/**\n\t * Initializes our plugins and waits for them to be ready\n\t * before proceeding.\n\t */\n\tinitPlugins() {\n\n\t\treturn new Promise( resolve => {\n\n\t\t\tlet pluginValues = Object.values( this.registeredPlugins );\n\t\t\tlet pluginsToInitialize = pluginValues.length;\n\n\t\t\t// If there are no plugins, skip this step\n\t\t\tif( pluginsToInitialize === 0 ) {\n\t\t\t\tthis.loadAsync().then( resolve );\n\t\t\t}\n\t\t\t// ... otherwise initialize plugins\n\t\t\telse {\n\n\t\t\t\tlet initNextPlugin;\n\n\t\t\t\tlet afterPlugInitialized = () => {\n\t\t\t\t\tif( --pluginsToInitialize === 0 ) {\n\t\t\t\t\t\tthis.loadAsync().then( resolve );\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tinitNextPlugin();\n\t\t\t\t\t}\n\t\t\t\t};\n\n\t\t\t\tlet i = 0;\n\n\t\t\t\t// Initialize plugins serially\n\t\t\t\tinitNextPlugin = () => {\n\n\t\t\t\t\tlet plugin = pluginValues[i++];\n\n\t\t\t\t\t// If the plugin has an 'init' method, invoke it\n\t\t\t\t\tif( typeof plugin.init === 'function' ) {\n\t\t\t\t\t\tlet promise = plugin.init( this.Reveal );\n\n\t\t\t\t\t\t// If the plugin returned a Promise, wait for it\n\t\t\t\t\t\tif( promise && typeof promise.then === 'function' ) {\n\t\t\t\t\t\t\tpromise.then( afterPlugInitialized );\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tafterPlugInitialized();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tafterPlugInitialized();\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tinitNextPlugin();\n\n\t\t\t}\n\n\t\t} )\n\n\t}\n\n\t/**\n\t * Loads all async reveal.js dependencies.\n\t */\n\tloadAsync() {\n\n\t\tthis.state = 'loaded';\n\n\t\tif( this.asyncDependencies.length ) {\n\t\t\tthis.asyncDependencies.forEach( s => {\n\t\t\t\tloadScript( s.src, s.callback );\n\t\t\t} );\n\t\t}\n\n\t\treturn Promise.resolve();\n\n\t}\n\n\t/**\n\t * Registers a new plugin with this reveal.js instance.\n\t *\n\t * reveal.js waits for all registered plugins to initialize\n\t * before considering itself ready, as long as the plugin\n\t * is registered before calling `Reveal.initialize()`.\n\t */\n\tregisterPlugin( plugin ) {\n\n\t\t// Backwards compatibility to make reveal.js ~3.9.0\n\t\t// plugins work with reveal.js 4.0.0\n\t\tif( arguments.length === 2 && typeof arguments[0] === 'string' ) {\n\t\t\tplugin = arguments[1];\n\t\t\tplugin.id = arguments[0];\n\t\t}\n\t\t// Plugin can optionally be a function which we call\n\t\t// to create an instance of the plugin\n\t\telse if( typeof plugin === 'function' ) {\n\t\t\tplugin = plugin();\n\t\t}\n\n\t\tlet id = plugin.id;\n\n\t\tif( typeof id !== 'string' ) {\n\t\t\tconsole.warn( 'Unrecognized plugin format; can\\'t find plugin.id', plugin );\n\t\t}\n\t\telse if( this.registeredPlugins[id] === undefined ) {\n\t\t\tthis.registeredPlugins[id] = plugin;\n\n\t\t\t// If a plugin is registered after reveal.js is loaded,\n\t\t\t// initialize it right away\n\t\t\tif( this.state === 'loaded' && typeof plugin.init === 'function' ) {\n\t\t\t\tplugin.init( this.Reveal );\n\t\t\t}\n\t\t}\n\t\telse {\n\t\t\tconsole.warn( 'reveal.js: \"'+ id +'\" plugin has already been registered' );\n\t\t}\n\n\t}\n\n\t/**\n\t * Checks if a specific plugin has been registered.\n\t *\n\t * @param {String} id Unique plugin identifier\n\t */\n\thasPlugin( id ) {\n\n\t\treturn !!this.registeredPlugins[id];\n\n\t}\n\n\t/**\n\t * Returns the specific plugin instance, if a plugin\n\t * with the given ID has been registered.\n\t *\n\t * @param {String} id Unique plugin identifier\n\t */\n\tgetPlugin( id ) {\n\n\t\treturn this.registeredPlugins[id];\n\n\t}\n\n\tgetRegisteredPlugins() {\n\n\t\treturn this.registeredPlugins;\n\n\t}\n\n\tdestroy() {\n\n\t\tObject.values( this.registeredPlugins ).forEach( plugin => {\n\t\t\tif( typeof plugin.destroy === 'function' ) {\n\t\t\t\tplugin.destroy();\n\t\t\t}\n\t\t} );\n\n\t\tthis.registeredPlugins = {};\n\t\tthis.asyncDependencies = [];\n\n\t}\n\n}\n","import { isAndroid } from '../utils/device.js'\nimport { matches } from '../utils/util.js'\n\nconst SWIPE_THRESHOLD = 40;\n\n/**\n * Controls all touch interactions and navigations for\n * a presentation.\n */\nexport default class Touch {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\t// Holds information about the currently ongoing touch interaction\n\t\tthis.touchStartX = 0;\n\t\tthis.touchStartY = 0;\n\t\tthis.touchStartCount = 0;\n\t\tthis.touchCaptured = false;\n\n\t\tthis.onPointerDown = this.onPointerDown.bind( this );\n\t\tthis.onPointerMove = this.onPointerMove.bind( this );\n\t\tthis.onPointerUp = this.onPointerUp.bind( this );\n\t\tthis.onTouchStart = this.onTouchStart.bind( this );\n\t\tthis.onTouchMove = this.onTouchMove.bind( this );\n\t\tthis.onTouchEnd = this.onTouchEnd.bind( this );\n\n\t}\n\n\t/**\n\t *\n\t */\n\tbind() {\n\n\t\tlet revealElement = this.Reveal.getRevealElement();\n\n\t\tif( 'onpointerdown' in window ) {\n\t\t\t// Use W3C pointer events\n\t\t\trevealElement.addEventListener( 'pointerdown', this.onPointerDown, false );\n\t\t\trevealElement.addEventListener( 'pointermove', this.onPointerMove, false );\n\t\t\trevealElement.addEventListener( 'pointerup', this.onPointerUp, false );\n\t\t}\n\t\telse if( window.navigator.msPointerEnabled ) {\n\t\t\t// IE 10 uses prefixed version of pointer events\n\t\t\trevealElement.addEventListener( 'MSPointerDown', this.onPointerDown, false );\n\t\t\trevealElement.addEventListener( 'MSPointerMove', this.onPointerMove, false );\n\t\t\trevealElement.addEventListener( 'MSPointerUp', this.onPointerUp, false );\n\t\t}\n\t\telse {\n\t\t\t// Fall back to touch events\n\t\t\trevealElement.addEventListener( 'touchstart', this.onTouchStart, false );\n\t\t\trevealElement.addEventListener( 'touchmove', this.onTouchMove, false );\n\t\t\trevealElement.addEventListener( 'touchend', this.onTouchEnd, false );\n\t\t}\n\n\t}\n\n\t/**\n\t *\n\t */\n\tunbind() {\n\n\t\tlet revealElement = this.Reveal.getRevealElement();\n\n\t\trevealElement.removeEventListener( 'pointerdown', this.onPointerDown, false );\n\t\trevealElement.removeEventListener( 'pointermove', this.onPointerMove, false );\n\t\trevealElement.removeEventListener( 'pointerup', this.onPointerUp, false );\n\n\t\trevealElement.removeEventListener( 'MSPointerDown', this.onPointerDown, false );\n\t\trevealElement.removeEventListener( 'MSPointerMove', this.onPointerMove, false );\n\t\trevealElement.removeEventListener( 'MSPointerUp', this.onPointerUp, false );\n\n\t\trevealElement.removeEventListener( 'touchstart', this.onTouchStart, false );\n\t\trevealElement.removeEventListener( 'touchmove', this.onTouchMove, false );\n\t\trevealElement.removeEventListener( 'touchend', this.onTouchEnd, false );\n\n\t}\n\n\t/**\n\t * Checks if the target element prevents the triggering of\n\t * swipe navigation.\n\t */\n\tisSwipePrevented( target ) {\n\n\t\t// Prevent accidental swipes when scrubbing timelines\n\t\tif( matches( target, 'video, audio' ) ) return true;\n\n\t\twhile( target && typeof target.hasAttribute === 'function' ) {\n\t\t\tif( target.hasAttribute( 'data-prevent-swipe' ) ) return true;\n\t\t\ttarget = target.parentNode;\n\t\t}\n\n\t\treturn false;\n\n\t}\n\n\t/**\n\t * Handler for the 'touchstart' event, enables support for\n\t * swipe and pinch gestures.\n\t *\n\t * @param {object} event\n\t */\n\tonTouchStart( event ) {\n\n\t\tif( this.isSwipePrevented( event.target ) ) return true;\n\n\t\tthis.touchStartX = event.touches[0].clientX;\n\t\tthis.touchStartY = event.touches[0].clientY;\n\t\tthis.touchStartCount = event.touches.length;\n\n\t}\n\n\t/**\n\t * Handler for the 'touchmove' event.\n\t *\n\t * @param {object} event\n\t */\n\tonTouchMove( event ) {\n\n\t\tif( this.isSwipePrevented( event.target ) ) return true;\n\n\t\tlet config = this.Reveal.getConfig();\n\n\t\t// Each touch should only trigger one action\n\t\tif( !this.touchCaptured ) {\n\t\t\tthis.Reveal.onUserInput( event );\n\n\t\t\tlet currentX = event.touches[0].clientX;\n\t\t\tlet currentY = event.touches[0].clientY;\n\n\t\t\t// There was only one touch point, look for a swipe\n\t\t\tif( event.touches.length === 1 && this.touchStartCount !== 2 ) {\n\n\t\t\t\tlet availableRoutes = this.Reveal.availableRoutes({ includeFragments: true });\n\n\t\t\t\tlet deltaX = currentX - this.touchStartX,\n\t\t\t\t\tdeltaY = currentY - this.touchStartY;\n\n\t\t\t\tif( deltaX > SWIPE_THRESHOLD && Math.abs( deltaX ) > Math.abs( deltaY ) ) {\n\t\t\t\t\tthis.touchCaptured = true;\n\t\t\t\t\tif( config.navigationMode === 'linear' ) {\n\t\t\t\t\t\tif( config.rtl ) {\n\t\t\t\t\t\t\tthis.Reveal.next();\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tthis.Reveal.prev();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.Reveal.left();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\telse if( deltaX < -SWIPE_THRESHOLD && Math.abs( deltaX ) > Math.abs( deltaY ) ) {\n\t\t\t\t\tthis.touchCaptured = true;\n\t\t\t\t\tif( config.navigationMode === 'linear' ) {\n\t\t\t\t\t\tif( config.rtl ) {\n\t\t\t\t\t\t\tthis.Reveal.prev();\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tthis.Reveal.next();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.Reveal.right();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\telse if( deltaY > SWIPE_THRESHOLD && availableRoutes.up ) {\n\t\t\t\t\tthis.touchCaptured = true;\n\t\t\t\t\tif( config.navigationMode === 'linear' ) {\n\t\t\t\t\t\tthis.Reveal.prev();\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.Reveal.up();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\telse if( deltaY < -SWIPE_THRESHOLD && availableRoutes.down ) {\n\t\t\t\t\tthis.touchCaptured = true;\n\t\t\t\t\tif( config.navigationMode === 'linear' ) {\n\t\t\t\t\t\tthis.Reveal.next();\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tthis.Reveal.down();\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// If we're embedded, only block touch events if they have\n\t\t\t\t// triggered an action\n\t\t\t\tif( config.embedded ) {\n\t\t\t\t\tif( this.touchCaptured || this.Reveal.isVerticalSlide() ) {\n\t\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\t// Not embedded? Block them all to avoid needless tossing\n\t\t\t\t// around of the viewport in iOS\n\t\t\t\telse {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t}\n\n\t\t\t}\n\t\t}\n\t\t// There's a bug with swiping on some Android devices unless\n\t\t// the default action is always prevented\n\t\telse if( isAndroid ) {\n\t\t\tevent.preventDefault();\n\t\t}\n\n\t}\n\n\t/**\n\t * Handler for the 'touchend' event.\n\t *\n\t * @param {object} event\n\t */\n\tonTouchEnd( event ) {\n\n\t\tthis.touchCaptured = false;\n\n\t}\n\n\t/**\n\t * Convert pointer down to touch start.\n\t *\n\t * @param {object} event\n\t */\n\tonPointerDown( event ) {\n\n\t\tif( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === \"touch\" ) {\n\t\t\tevent.touches = [{ clientX: event.clientX, clientY: event.clientY }];\n\t\t\tthis.onTouchStart( event );\n\t\t}\n\n\t}\n\n\t/**\n\t * Convert pointer move to touch move.\n\t *\n\t * @param {object} event\n\t */\n\tonPointerMove( event ) {\n\n\t\tif( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === \"touch\" ) {\n\t\t\tevent.touches = [{ clientX: event.clientX, clientY: event.clientY }];\n\t\t\tthis.onTouchMove( event );\n\t\t}\n\n\t}\n\n\t/**\n\t * Convert pointer up to touch end.\n\t *\n\t * @param {object} event\n\t */\n\tonPointerUp( event ) {\n\n\t\tif( event.pointerType === event.MSPOINTER_TYPE_TOUCH || event.pointerType === \"touch\" ) {\n\t\t\tevent.touches = [{ clientX: event.clientX, clientY: event.clientY }];\n\t\t\tthis.onTouchEnd( event );\n\t\t}\n\n\t}\n\n}","import { closest } from '../utils/util.js'\n\n/**\n * Manages focus when a presentation is embedded. This\n * helps us only capture keyboard from the presentation\n * a user is currently interacting with in a page where\n * multiple presentations are embedded.\n */\n\nconst STATE_FOCUS = 'focus';\nconst STATE_BLUR = 'blur';\n\nexport default class Focus {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t\tthis.onRevealPointerDown = this.onRevealPointerDown.bind( this );\n\t\tthis.onDocumentPointerDown = this.onDocumentPointerDown.bind( this );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tif( config.embedded ) {\n\t\t\tthis.blur();\n\t\t}\n\t\telse {\n\t\t\tthis.focus();\n\t\t\tthis.unbind();\n\t\t}\n\n\t}\n\n\tbind() {\n\n\t\tif( this.Reveal.getConfig().embedded ) {\n\t\t\tthis.Reveal.getRevealElement().addEventListener( 'pointerdown', this.onRevealPointerDown, false );\n\t\t}\n\n\t}\n\n\tunbind() {\n\n\t\tthis.Reveal.getRevealElement().removeEventListener( 'pointerdown', this.onRevealPointerDown, false );\n\t\tdocument.removeEventListener( 'pointerdown', this.onDocumentPointerDown, false );\n\n\t}\n\n\tfocus() {\n\n\t\tif( this.state !== STATE_FOCUS ) {\n\t\t\tthis.Reveal.getRevealElement().classList.add( 'focused' );\n\t\t\tdocument.addEventListener( 'pointerdown', this.onDocumentPointerDown, false );\n\t\t}\n\n\t\tthis.state = STATE_FOCUS;\n\n\t}\n\n\tblur() {\n\n\t\tif( this.state !== STATE_BLUR ) {\n\t\t\tthis.Reveal.getRevealElement().classList.remove( 'focused' );\n\t\t\tdocument.removeEventListener( 'pointerdown', this.onDocumentPointerDown, false );\n\t\t}\n\n\t\tthis.state = STATE_BLUR;\n\n\t}\n\n\tisFocused() {\n\n\t\treturn this.state === STATE_FOCUS;\n\n\t}\n\n\tdestroy() {\n\n\t\tthis.Reveal.getRevealElement().classList.remove( 'focused' );\n\n\t}\n\n\tonRevealPointerDown( event ) {\n\n\t\tthis.focus();\n\n\t}\n\n\tonDocumentPointerDown( event ) {\n\n\t\tlet revealElement = closest( event.target, '.reveal' );\n\t\tif( !revealElement || revealElement !== this.Reveal.getRevealElement() ) {\n\t\t\tthis.blur();\n\t\t}\n\n\t}\n\n}","/**\n * Handles the showing of speaker notes\n */\nexport default class Notes {\n\n\tconstructor( Reveal ) {\n\n\t\tthis.Reveal = Reveal;\n\n\t}\n\n\trender() {\n\n\t\tthis.element = document.createElement( 'div' );\n\t\tthis.element.className = 'speaker-notes';\n\t\tthis.element.setAttribute( 'data-prevent-swipe', '' );\n\t\tthis.element.setAttribute( 'tabindex', '0' );\n\t\tthis.Reveal.getRevealElement().appendChild( this.element );\n\n\t}\n\n\t/**\n\t * Called when the reveal.js config is updated.\n\t */\n\tconfigure( config, oldConfig ) {\n\n\t\tif( config.showNotes ) {\n\t\t\tthis.element.setAttribute( 'data-layout', typeof config.showNotes === 'string' ? config.showNotes : 'inline' );\n\t\t}\n\n\t}\n\n\t/**\n\t * Pick up notes from the current slide and display them\n\t * to the viewer.\n\t *\n\t * @see {@link config.showNotes}\n\t */\n\tupdate() {\n\n\t\tif( this.Reveal.getConfig().showNotes &&\n\t\t\tthis.element && this.Reveal.getCurrentSlide() &&\n\t\t\t!this.Reveal.isScrollView() &&\n\t\t\t!this.Reveal.isPrintView()\n\t\t) {\n\t\t\tthis.element.innerHTML = this.getSlideNotes() || 'No notes on this slide.';\n\t\t}\n\n\t}\n\n\t/**\n\t * Updates the visibility of the speaker notes sidebar that\n\t * is used to share annotated slides. The notes sidebar is\n\t * only visible if showNotes is true and there are notes on\n\t * one or more slides in the deck.\n\t */\n\tupdateVisibility() {\n\n\t\tif( this.Reveal.getConfig().showNotes &&\n\t\t\tthis.hasNotes() &&\n\t\t\t!this.Reveal.isScrollView() &&\n\t\t\t!this.Reveal.isPrintView()\n\t\t) {\n\t\t\tthis.Reveal.getRevealElement().classList.add( 'show-notes' );\n\t\t}\n\t\telse {\n\t\t\tthis.Reveal.getRevealElement().classList.remove( 'show-notes' );\n\t\t}\n\n\t}\n\n\t/**\n\t * Checks if there are speaker notes for ANY slide in the\n\t * presentation.\n\t */\n\thasNotes() {\n\n\t\treturn this.Reveal.getSlidesElement().querySelectorAll( '[data-notes], aside.notes' ).length > 0;\n\n\t}\n\n\t/**\n\t * Checks if this presentation is running inside of the\n\t * speaker notes window.\n\t *\n\t * @return {boolean}\n\t */\n\tisSpeakerNotesWindow() {\n\n\t\treturn !!window.location.search.match( /receiver/gi );\n\n\t}\n\n\t/**\n\t * Retrieves the speaker notes from a slide. Notes can be\n\t * defined in two ways:\n\t * 1. As a data-notes attribute on the slide
\n\t * 2. With