minor tweaks and comments
parent
29c5af84be
commit
2de43199ef
16
js/reveal.js
16
js/reveal.js
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@ -2825,6 +2825,16 @@ var Reveal = (function(){
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// --------------------------------------------------------------------//
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/**
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* Constructor for the playback component, which displays
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* play/pause/progress controls.
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*
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* @param {HTMLElement} container The component will append
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* itself to this
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* @param {Function} progressCheck A method which will be
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* called frequently to get the current progress on a range
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* of 0-1
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*/
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function Playback( container, progressCheck ) {
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this.size = 50;
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@ -2883,6 +2893,8 @@ var Reveal = (function(){
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x = this.size / 2,
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y = this.size / 2;
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var iconSize = 14;
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var startAngle = - Math.PI / 2;
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var endAngle = startAngle + ( progress * ( Math.PI * 2 ) );
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@ -2902,15 +2914,13 @@ var Reveal = (function(){
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this.context.strokeStyle = '#666';
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this.context.stroke();
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// Draw progress along arc edge
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// Draw progress on top of track
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this.context.beginPath();
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this.context.arc( x, y, radius, startAngle, endAngle, false );
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this.context.lineWidth = this.thickness;
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this.context.strokeStyle = '#fff';
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this.context.stroke();
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var iconSize = 14;
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this.context.translate( x - ( iconSize / 2 ), y - ( iconSize / 2 ) );
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// Draw play/pause icons
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