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bubble all reveal.js events to parent window through postMessage

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This commit is contained in:
Hakim El Hattab 2014-04-18 20:03:50 +02:00
parent 11ea0aa3e1
commit a4b09aecda
1 changed files with 14 additions and 4 deletions
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18
js/reveal.js
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@ -568,10 +568,11 @@ var Reveal = (function(){
window.addEventListener( 'message', function ( event ) {
var data = JSON.parse( event.data );
var method = Reveal[data.method];
if( typeof method === 'function' ) {
method.apply( Reveal, data.args );
}
}, false);
}, false );
}
@ -957,13 +958,22 @@ var Reveal = (function(){
* Dispatches an event of the specified type from the
* reveal DOM element.
*/
function dispatchEvent( type, properties ) {
function dispatchEvent( type, args ) {
var event = document.createEvent( "HTMLEvents", 1, 2 );
var event = document.createEvent( 'HTMLEvents', 1, 2 );
event.initEvent( type, true, true );
extend( event, properties );
extend( event, args );
dom.wrapper.dispatchEvent( event );
// If we're in an iframe, post each reveal.js event to the
// parent window. Used by the notes plugin
if( window.parent !== window.self ) {
// Remove arguments that can't be stringified (circular structures)
if( args && args.currentSlide ) delete args.currentSlide;
if( args && args.previousSlide ) delete args.previousSlide;
window.parent.postMessage( JSON.stringify({ namespace: 'reveal', eventName: type, eventArgs: args || null }), '*' );
}
}
/**