43 lines
932 B
JavaScript
43 lines
932 B
JavaScript
/*
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simple postmessage plugin
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Useful when a reveal slideshow is inside an iframe.
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It allows to call reveal methods from outside.
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Example:
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var reveal = window.frames[0];
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// Reveal.prev();
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reveal.postMessage(JSON.stringify({method: 'prev', args: []}), '*');
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// Reveal.next();
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reveal.postMessage(JSON.stringify({method: 'next', args: []}), '*');
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// Reveal.slide(2, 2);
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reveal.postMessage(JSON.stringify({method: 'slide', args: [2,2]}), '*');
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Add to the slideshow:
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dependencies: [
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...
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{ src: 'plugin/postmessage/postmessage.js', async: true, condition: function() { return !!document.body.classList; } }
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]
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*/
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(function (){
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window.addEventListener( "message", function ( event ) {
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var data = JSON.parse( event.data ),
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method = data.method,
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args = data.args;
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if( typeof Reveal[method] === 'function' ) {
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Reveal[method].apply( Reveal, data.args );
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}
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}, false);
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}());
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