add get/setState methods for persisting and restoring presentation state
parent
4cd1dd1a1f
commit
714102c3f8
46
js/reveal.js
46
js/reveal.js
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@ -1430,13 +1430,13 @@ var Reveal = (function(){
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/**
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/**
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* Toggles the paused mode on and off.
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* Toggles the paused mode on and off.
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*/
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*/
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function togglePause() {
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function togglePause( override ) {
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if( isPaused() ) {
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if( typeof override === 'boolean' ) {
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resume();
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override ? pause() : resume();
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}
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}
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else {
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else {
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pause();
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isPaused() ? resume() : pause();
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}
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}
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}
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}
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@ -2325,6 +2325,40 @@ var Reveal = (function(){
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}
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}
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/**
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* Retrieves the current state of the presentation as
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* an object. This state can then be restored at any
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* time.
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*/
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function getState() {
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var indices = getIndices();
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return {
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indexh: indices.h,
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indexv: indices.v,
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indexf: indices.f,
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paused: isPaused(),
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overview: isOverview()
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};
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}
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/**
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* Restores the presentation to the given state.
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*
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* @param {Object} state As generated by getState()
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*/
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function setState( state ) {
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if( typeof state === 'object' ) {
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slide( state.indexh, state.indexv, state.indexf );
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togglePause( state.paused );
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toggleOverview( state.overview );
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}
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}
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/**
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/**
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* Return a sorted fragments list, ordered by an increasing
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* Return a sorted fragments list, ordered by an increasing
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* "data-fragment-index" attribute.
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* "data-fragment-index" attribute.
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@ -3345,6 +3379,10 @@ var Reveal = (function(){
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addEventListeners: addEventListeners,
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addEventListeners: addEventListeners,
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removeEventListeners: removeEventListeners,
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removeEventListeners: removeEventListeners,
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// Facility for persisting and restoring the presentation state
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getState: getState,
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setState: setState,
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// Returns the indices of the current, or specified, slide
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// Returns the indices of the current, or specified, slide
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getIndices: getIndices,
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getIndices: getIndices,
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