300 lines
13 KiB
Markdown
300 lines
13 KiB
Markdown
# reveal.js
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A CSS 3D slideshow tool for quickly creating good looking HTML presentations. Doesn't _rely_ on any external libraries but [highlight.js](http://softwaremaniacs.org/soft/highlight/en/description/) is included by default for code highlighting.
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Note that this requires a browser with support for CSS 3D transforms and ``classList``. If CSS 3D support is not detected, the presentation will degrade to less exciting 2D transitions. A [classList polyfill](http://purl.eligrey.com/github/classList.js/blob/master/classList.js) is incuded to make this work in < iOS 5, < Safari 5.1 and IE.
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Curious about how it looks in action? [Check out the demo page](http://lab.hakim.se/reveal-js/).
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## Usage
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### Markup
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Markup heirarchy needs to be ``<div class="reveal"> <div class="slides"> <section>`` where the ``<section>`` represents one slide and can be repeated indefinitely. If you place multiple ``<section>``'s inside of another ``<section>`` they will be shown as vertical slides. For example:
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```html
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<div class="reveal">
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<div class="slides">
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<section>Single Horizontal Slide</section>
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<section>
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<section>Vertical Slide 1</section>
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<section>Vertical Slide 2</section>
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</section>
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</div>
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</div>
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```
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### Markdown
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It's possible to write your slides using Markdown. To enable Markdown simply add the ```data-markdown``` attribute to your ```<section>``` elements and reveal.js will automatically load the JavaScript parser.
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This is based on [data-markdown](https://gist.github.com/1343518) from [Paul Irish](https://github.com/paulirish) which in turn uses [showdown](https://github.com/coreyti/showdown/). This is sensitive to indentation (avoid mixing tabs and spaces) and line breaks (avoid consecutive breaks). Updates to come.
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```html
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<section data-markdown>
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## Page title
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A paragraph with some text and a [link](http://hakim.se).
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</section>
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```
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### Configuration
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At the end of your page, after ``<script src="js/reveal.js"></script>``, you need to initialize reveal by running the following code. Note that all config values are optional and will default as specified below.
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```javascript
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Reveal.initialize({
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// Display controls in the bottom right corner
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controls: true,
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// Display a presentation progress bar
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progress: true,
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// Push each slide change to the browser history
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history: false,
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// Enable keyboard shortcuts for navigation
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keyboard: true,
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// Loop the presentation
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loop: false,
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// Number of milliseconds between automatically proceeding to the
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// next slide, disabled when set to 0
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autoSlide: 0,
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// Enable slide navigation via mouse wheel
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mouseWheel: true,
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// Apply a 3D roll to links on hover
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rollingLinks: true,
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// UI style
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theme: 'default', // default/neon/beige
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// Transition style
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transition: 'default' // default/cube/page/concave/linear(2d)
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});
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```
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### API
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The Reveal class provides a minimal JavaScript API for controlling navigation and reading state:
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```javascript
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// Navigation
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Reveal.navigateTo( indexh, indexv );
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Reveal.navigateLeft();
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Reveal.navigateRight();
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Reveal.navigateUp();
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Reveal.navigateDown();
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Reveal.navigatePrev();
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Reveal.navigateNext();
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Reveal.toggleOverview();
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// Retrieves the previous and current slide elements
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Reveal.getPreviousSlide();
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Reveal.getCurrentSlide();
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Reveal.getIndices(); // { h: 0, v: 0 } }
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```
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### States
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If you set ``data-state="somestate"`` on a slide ``<section>``, "somestate" will be applied as a class on the document element when that slide is opened. This allows you to apply broad style changes to the page based on the active slide.
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Furthermore you can also listen to these changes in state via JavaScript:
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```javascript
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Reveal.addEventListener( 'somestate', function() {
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// TODO: Sprinkle magic
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}, false );
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```
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### Slide change event
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An 'slidechanged' event is fired each time the slide is changed (regardless of state). The event object holds the index values of the current slide as well as a reference to the previous and current slide HTML nodes.
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```javascript
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Reveal.addEventListener( 'slidechanged', function( event ) {
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// event.previousSlide, event.currentSlide, event.indexh, event.indexv
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} );
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```
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### Fragment events
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When a slide fragment is either shown or hidden reveal.js will dispatch an event.
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```javascript
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Reveal.addEventListener( 'fragmentshown', function( event ) {
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// event.fragment = the fragment DOM element
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} );
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Reveal.addEventListener( 'fragmenthidden', function( event ) {
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// event.fragment = the fragment DOM element
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} );
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```
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### Folder Structure
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- **css/** Core styles without which the project does not function
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- **js/** Like above but for JavaScript
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- **plugin/** Components that have been developed as extensions to reveal.js
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- **lib/** All other third party assets (JavaScript, CSS, fonts)
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## Speaker Notes
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If you're interested in using speaker notes, reveal.js comes with a Node server that allows you to deliver your presentation in one browser while viewing speaker notes in another.
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To include speaker notes in your presentation, simply add an `<aside class="notes">` element to any slide. These notes will be hidden in the main presentation view.
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You'll also need to [install Node.js](http://nodejs.org/); then, install the server dependencies by running `npm install`.
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Once Node.js and the dependencies are installed, run the following command from the root directory:
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node plugin/speakernotes
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By default, the slides will be served at [localhost:1947](http://localhost:1947).
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You can change the appearance of the speaker notes by editing the file at `plugin/speakernotes/notes.html`.
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## Multiplexing
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The multiplex plugin allows your audience to view the slides on their own phone, tablet or laptop. As the master navigates the slides, all clients will update in real time. See a demo at [http://revealjs.jit.su/](http://revealjs.jit.su)
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Configuration is via the multiplex object in index.html. To generate unique secret and token values, visit [revealjs.jit.su/token](revealjs.jit.su/token)
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multiplex.secret should only be configured on those pages you wish to be able to control slide navigatoin for all clients. Multi-master configurations work, but if you don't wish your audience to be able to control your slides, set the secret to null. In this master/slave setup, you should create a publicly accessible page with secret set to null, and a protected page containing your secret.
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You are very welcome to use the server running at reveal.jit.su, however availability and stability are not guaranteed. For anything mission critical I recommend you run your own server. It is simple to deploy to nodejitsu or run on your own environment.
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### Known Issues
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- The notes page is supposed to show the current slide and the next slide, but when it first starts, it always shows the first slide in both positions.
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## Examples
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* http://lab.hakim.se/reveal-js/ (original)
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* http://www.ideapolisagency.com/ by [@achrafkassioui](http://twitter.com/achrafkassioui)
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* http://lucienfrelin.com/ by [@lucienfrelin](http://twitter.com/lucienfrelin)
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* http://creatorrr.github.com/ThePoet/
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* http://moduscreate.com/ by [@ModusCreate](https://twitter.com/ModusCreate)
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* http://idea.diwank.name/ by [Diwank Singh](http://diwank.name/)
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* [Webapp Development Stack & Tooling](http://dl.dropbox.com/u/39519/talks/jquk-tooling%2Bappstack/index.html) by [Paul Irish](https://github.com/paulirish)
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* [Lock-free algorithms](http://concurrencykit.org/presentations/lockfree_introduction/) by Samy Al Bahra
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* [Not Your Average Drag and Drop](http://www.thecssninja.com/talks/not_your_average_dnd/) by [Ryan Seddon](https://github.com/ryanseddon)
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* [Elasticsearch](http://spinscale.github.com/elasticsearch/2012-03-jugm.html) by [@spinscale](http://twitter.com/spinscale)
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* [JavaScript Tooling](http://dl.dropbox.com/u/39519/talks/jsconf-tools/index.html) by [Paul Irish](https://github.com/paulirish)
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* [The Graphical Web: Fostering Creativity](http://vhardy.github.com/presentations/html5-community-meet-up-2012/) by [Vincent Hardy](https://github.com/vhardy)
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* [Mobile Web Programming is a Bloody Mess](http://westcoastlogic.com/slides/debug-mobile/) by [Brian LeRoux](https://github.com/brianleroux)
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* [Bio Database Access and Sequence Alignment](http://www.philipbjorge.com/bioinformatics-presentation/) by [Philip Bjorge](https://github.com/philipbjorge)
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* [Web vs Native](http://prez.mahemoff.com/state-native/) by [Michael Mahemoff](https://github.com/mahemoff)
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* [Continuously Integrated JS Development](http://trodrigues.net/presentations/buster-ci/) by [Tiago Rodrigues](https://github.com/trodrigues)
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* [To be Future Friendly is to be Device Agnostic](http://dl.dropbox.com/u/409429/presentations/toster-2012/index.html) by [Joe McCann](https://github.com/joemccann)
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* [The Web Development Workflow of 2013](http://dl.dropbox.com/u/39519/talks/fluent/index.html) by [Paul Irish](https://github.com/paulirish)
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* [How To Cope With Graphical Challenges Using Latest Web Technologies](http://alexw.me/playground/slideshows/w3c_netcraft/) by [Alex Wolkov](https://github.com/altryne)
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* [Going Deeper with jQuery Mobile](http://andymatthews.net/downloads/presentations/going-deeper-with-jquery-mobile/) by [Andy Matthews](https://github.com/commadelimited)
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* [Studio Nord](http://studionord.org)
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* [Herrljunga Cider](http://herrljungacider.se/uk/campaign/)
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* [PhoneGap Pain Points](http://phonegap-pain-points.appspot.com/) by [Pamela Fox](https://github.com/pamelafox)
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* [Using HTML5 To Power Your Game Production](http://www.blitzgamesstudios.com/blitztech/html5-presentation) by Richard Hackett
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[Send me a link](http://hakim.se/about/contact) if you used reveal.js for a project or presentation.
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## History
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#### 1.5 (master/beta)
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- New API method ```Reveal.getPreviousSlide()```
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- New API method ```Reveal.getCurrentSlide()```
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- New API method ```Reveal.getIndices()```
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- Fixed bug where the ```.present``` class was sometimes left on the previous slide
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- Added support for slides written using markdown
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- Added helped method ```Reveal.getQueryHash()```
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- Added EOT font for IE support
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- IE8 support
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- Fixed bug where hovering 3D links in Chrome caused them to disappear
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- Disable 3D links in IE and more accurate CSS feature detection
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#### 1.4
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- Main ```#reveal container``` is now selected via a class instead of ID
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- API methods for adding or removing all event listeners
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- The ```slidechange``` event now includes currentSlide and previousSlide
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- Fixed bug where ```slidechange``` was firing twice when history was enabled
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- Folder structure updates for scalability (see /lib & /plugin)
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- Slide notes by [rmurphey](https://github.com/rmurphey)
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- Bumped up default font-size for code samples
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- Added beige theme
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- Added ```autoSlide``` config
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- Bug fix: The ```slidechanged``` event is now firing upon ```hashchange```. Thanks [basecode](https://github.com/basecode)
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- Bug fix: JS error when the ```progress``` option was true but there was no progress DOM element
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- ```keyboard``` config flag for disabling all keyboard navigation
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#### 1.3
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- Revised keyboard shortcuts, including ESC for overview, N for next, P for previous. Thanks [mahemoff](https://github.com/mahemoff)
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- Added support for looped presentations via config
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- Fixed IE9 fallback
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- Added event binding methods (```Reveal.addEventListener```, ```Reveal.removeEventListener```)
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- Added ```slidechanged``` event
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- Added print styles. Thanks [skypanther](https://github.com/skypanther)
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- The address bar now hides automatically on mobile browsers
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- Space and return keys can be used to exit the overview mode
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- Events for fragment states (```fragmentshown``` / ```fragmenthidden```)
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- Support for swipe navigation on touch devices. Thanks [akiersky](https://github.com/akiersky)
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- Support for pinch to overview on touch devices
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#### 1.2
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- Big changes to DOM structure:
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- Previous ```#main``` wrapper is now called ```#reveal```
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- Slides were moved one level deeper, into ```#reveal .slides```
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- Controls and progress bar were moved into ```#reveal```
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- CSS is now much more explicit, rooted at ```#reveal```, to prevent conflicts
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- Config option for disabling updates to URL, defaults to true
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- Anchors with image children no longer rotate in 3D on hover
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- Support for mouse wheel navigation ([naugtur](https://github.com/naugtur))
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- Delayed updates to URL hash to work around a bug in Chrome
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- Included a ```classList``` polyfill for IE9
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- Support for wireless presenter keys
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- States can now be applied as classes on the document element by adding ```data-state``` on a slide
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#### 1.1
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- Added an optional presentation progress bar
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- Images wrapped in anchors no longer unexpectedly flip in 3D
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- Slides that contain other slides are given the 'stack' class
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- Added ```transition``` option for specifying transition styles
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- Added ```theme``` option for specifying UI styles
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- New transitions: ```box``` & ```page```
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- New theme: ```neon```
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#### 1.0
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- New and improved style
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- Added controls in bottom right which indicate where you can navigate
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- Reveal views in iteratively by giving them the ```.fragment``` class
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- Code sample syntax highlighting thanks to [highlight.js](http://softwaremaniacs.org/soft/highlight/en/description/)
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- Initialization options (toggling controls, toggling rolling links, transition theme)
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#### 0.3
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- Added licensing terms
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- Fixed broken links on touch devices
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#### 0.2
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- Refactored code and added inline documentation
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- Slides now have unique URL's
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- A basic API to invoke navigation was added
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#### 0.1
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- First release
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- Transitions and a white theme
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## License
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MIT licensed
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Copyright (C) 2012 Hakim El Hattab, http://hakim.se
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