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null and type check what comes through postmessage

edit
Hakim El Hattab 2014-04-22 19:01:59 +02:00
parent 167400ee8b
commit 53238c47ce
1 changed files with 9 additions and 4 deletions
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13
js/reveal.js
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@ -575,11 +575,16 @@ var Reveal = (function(){
if( config.postMessage ) { if( config.postMessage ) {
window.addEventListener( 'message', function ( event ) { window.addEventListener( 'message', function ( event ) {
var data = JSON.parse( event.data ); var data = event.data;
var method = Reveal[data.method];
if( typeof method === 'function' ) { // Make sure we're dealing with JSON
method.apply( Reveal, data.args ); if( data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) {
data = JSON.parse( data );
// Check if the requested method can be found
if( data.method && typeof Reveal[data.method] === 'function' ) {
Reveal[data.method].apply( Reveal, data.args );
}
} }
}, false ); }, false );
} }