From 714102c3f8bfacee2323e32963ee62c3d1511d19 Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Sun, 2 Mar 2014 12:30:55 +0100 Subject: [PATCH] add get/setState methods for persisting and restoring presentation state --- js/reveal.js | 46 ++++++++++++++++++++++++++++++++++++++++++---- js/reveal.min.js | 6 +++--- 2 files changed, 45 insertions(+), 7 deletions(-) diff --git a/js/reveal.js b/js/reveal.js index a06ce55..5cb72eb 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -1430,13 +1430,13 @@ var Reveal = (function(){ /** * Toggles the paused mode on and off. */ - function togglePause() { + function togglePause( override ) { - if( isPaused() ) { - resume(); + if( typeof override === 'boolean' ) { + override ? pause() : resume(); } else { - pause(); + isPaused() ? resume() : pause(); } } @@ -2325,6 +2325,40 @@ var Reveal = (function(){ } + /** + * Retrieves the current state of the presentation as + * an object. This state can then be restored at any + * time. + */ + function getState() { + + var indices = getIndices(); + + return { + indexh: indices.h, + indexv: indices.v, + indexf: indices.f, + paused: isPaused(), + overview: isOverview() + }; + + } + + /** + * Restores the presentation to the given state. + * + * @param {Object} state As generated by getState() + */ + function setState( state ) { + + if( typeof state === 'object' ) { + slide( state.indexh, state.indexv, state.indexf ); + togglePause( state.paused ); + toggleOverview( state.overview ); + } + + } + /** * Return a sorted fragments list, ordered by an increasing * "data-fragment-index" attribute. @@ -3345,6 +3379,10 @@ var Reveal = (function(){ addEventListeners: addEventListeners, removeEventListeners: removeEventListeners, + // Facility for persisting and restoring the presentation state + getState: getState, + setState: setState, + // Returns the indices of the current, or specified, slide getIndices: getIndices, diff --git a/js/reveal.min.js b/js/reveal.min.js index 205dda2..cc2447b 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,9 +1,9 @@ /*! - * reveal.js 2.7.0-dev (2014-02-28, 12:12) + * reveal.js 2.7.0-dev (2014-03-02, 12:29) * http://lab.hakim.se/reveal-js * MIT licensed * * Copyright (C) 2014 Hakim El Hattab, http://hakim.se */ -var Reveal=function(){"use strict";function a(a){if(b(),!gc.transforms2d&&!gc.transforms3d)return document.body.setAttribute("class","no-transforms"),void 0;window.addEventListener("load",A,!1);var d=Reveal.getQueryHash();"undefined"!=typeof d.dependencies&&delete d.dependencies,k(bc,a),k(bc,d),r(),c()}function b(){gc.transforms3d="WebkitPerspective"in document.body.style||"MozPerspective"in document.body.style||"msPerspective"in document.body.style||"OPerspective"in document.body.style||"perspective"in document.body.style,gc.transforms2d="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style,gc.requestAnimationFrameMethod=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame,gc.requestAnimationFrame="function"==typeof gc.requestAnimationFrameMethod,gc.canvas=!!document.createElement("canvas").getContext,Xb=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function c(){function a(){e.length&&head.js.apply(null,e),d()}function b(b){head.ready(b.src.match(/([\w\d_\-]*)\.?js$|[^\\\/]*$/i)[0],function(){"function"==typeof b.callback&&b.callback.apply(this),0===--f&&a()})}for(var c=[],e=[],f=0,g=0,h=bc.dependencies.length;h>g;g++){var i=bc.dependencies[g];(!i.condition||i.condition())&&(i.async?e.push(i.src):c.push(i.src),b(i))}c.length?(f=c.length,head.js.apply(null,c)):a()}function d(){e(),S(),h(),eb(),Z(!0),setTimeout(function(){fc.slides.classList.remove("no-transition"),cc=!0,t("ready",{indexh:Sb,indexv:Tb,currentSlide:Vb})},1)}function e(){fc.theme=document.querySelector("#theme"),fc.wrapper=document.querySelector(".reveal"),fc.slides=document.querySelector(".reveal .slides"),fc.slides.classList.add("no-transition"),fc.background=f(fc.wrapper,"div","backgrounds",null),fc.progress=f(fc.wrapper,"div","progress",""),fc.progressbar=fc.progress.querySelector("span"),f(fc.wrapper,"aside","controls",'
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