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recorder.js
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var Recorder = {
version: 1.13,
swfObject: null,
_callbacks: {},
_events: {},
_initialized: false,
_flashBlockCatched: false,
options: {},
initialize: function(options){
this.options = options || {};
if(window.location.protocol === "file:"){
throw new Error("Due to Adobe Flash restrictions it is not possible to use the Recorder through the file:// protocol. Please use an http server.");
}
if(!this.options.flashContainer){
this._setupFlashContainer();
}
this.bind('initialized', function(){
Recorder._initialized = true;
if(Recorder._flashBlockCatched){
Recorder._defaultOnHideFlash();
}
if(options.initialized){
options.initialized();
}
});
this.bind('showFlash', this.options.onFlashSecurity || this._defaultOnShowFlash);
this._loadFlash();
},
clear: function(){
Recorder._events = {};
},
record: function(options){
options = options || {};
this.clearBindings("recordingStart");
this.clearBindings("recordingProgress");
this.clearBindings("recordingCancel");
this.bind('recordingStart', this._defaultOnHideFlash);
this.bind('recordingCancel', this._defaultOnHideFlash);
// reload flash to allow mic permission dialog to show again
this.bind('recordingCancel', this._loadFlash);
this.bind('recordingStart', options['start']);
this.bind('recordingProgress', options['progress']);
this.bind('recordingCancel', options['cancel']);
this.flashInterface().record();
},
stop: function(){
return this.flashInterface()._stop();
},
play: function(options){
options = options || {};
this.clearBindings("playingProgress");
this.bind('playingProgress', options['progress']);
this.bind('playingStop', options['finished']);
this.flashInterface()._play();
},
upload: function(options){
options.audioParam = options.audioParam || "audio";
options.params = options.params || {};
this.clearBindings("uploadSuccess");
this.bind("uploadSuccess", function(responseText){
options.success(Recorder._externalInterfaceDecode(responseText));
});
this.flashInterface().upload(options.url, options.audioParam, options.params);
},
audioData: function(newData){
var delimiter = ";", newDataSerialized, stringData, data = [], sample;
if(newData){
newDataSerialized = newData.join(";");
}
stringData = this.flashInterface().audioData(newDataSerialized).split(delimiter);
for(var i=0; i < stringData.length; i ++){
sample = parseFloat(stringData[i]);
if(!isNaN(sample)){
data.push(sample);
}
}
return data;
},
request: function(method, uri, contentType, data, callback){
var callbackName = this.registerCallback(callback);
this.flashInterface().request(method, uri, contentType, data, callbackName);
},
clearBindings: function(eventName){
Recorder._events[eventName] = [];
},
bind: function(eventName, fn){
if(!Recorder._events[eventName]){ Recorder._events[eventName] = [] }
Recorder._events[eventName].push(fn);
},
triggerEvent: function(eventName, arg0, arg1){
Recorder._executeInWindowContext(function(){
if (!Recorder._events[eventName]) {
return;
}
for(var i = 0, len = Recorder._events[eventName].length; i < len; i++){
if(Recorder._events[eventName][i]){
Recorder._events[eventName][i].apply(Recorder, [arg0, arg1]);
}
}
});
},
triggerCallback: function(name, args){
Recorder._executeInWindowContext(function(){
Recorder._callbacks[name].apply(null, args);
});
},
registerCallback: function(fn){
var name = "CB" + parseInt(Math.random() * 999999, 10);
Recorder._callbacks[name] = fn;
return name;
},
flashInterface: function(){
if(!this.swfObject){
return null;
}else if(this.swfObject.record){
return this.swfObject;
}else if(this.swfObject.children[3].record){
return this.swfObject.children[3];
}
},
_executeInWindowContext: function(fn){
window.setTimeout(fn, 1);
},
_setupFlashContainer: function(){
this.options.flashContainer = document.createElement("div");
this.options.flashContainer.setAttribute("id", "recorderFlashContainer");
this.options.flashContainer.setAttribute("style", "position: fixed; left: -9999px; top: -9999px; width: 230px; height: 140px; margin-left: 10px; border-top: 6px solid rgba(128, 128, 128, 0.6); border-bottom: 6px solid rgba(128, 128, 128, 0.6); border-radius: 5px 5px; padding-bottom: 1px; padding-right: 1px;");
document.body.appendChild(this.options.flashContainer);
},
_clearFlash: function(){
var flashElement = this.options.flashContainer.children[0];
if(flashElement){
this.options.flashContainer.removeChild(flashElement);
}
},
_loadFlash: function(){
this._clearFlash();
var flashElement = document.createElement("div");
flashElement.setAttribute("id", "recorderFlashObject");
this.options.flashContainer.appendChild(flashElement);
swfobject.embedSWF(this.options.swfSrc, "recorderFlashObject", "231", "141", "10.1.0", undefined, undefined, {allowscriptaccess: "always"}, undefined, function(e){
if(e.success){
Recorder.swfObject = e.ref;
Recorder._checkForFlashBlock();
}else{
Recorder._showFlashRequiredDialog();
}
});
},
_defaultOnShowFlash: function(){
var flashContainer = Recorder.options.flashContainer;
flashContainer.style.left = ((window.innerWidth || document.body.offsetWidth) / 2) - 115 + "px";
flashContainer.style.top = ((window.innerHeight || document.body.offsetHeight) / 2) - 70 + "px";
},
_defaultOnHideFlash: function(){
var flashContainer = Recorder.options.flashContainer;
flashContainer.style.left = "-9999px";
flashContainer.style.top = "-9999px";
},
_checkForFlashBlock: function(){
window.setTimeout(function(){
if(!Recorder._initialized){
Recorder._flashBlockCatched = true;
Recorder.triggerEvent("showFlash");
}
}, 500);
},
_showFlashRequiredDialog: function(){
Recorder.options.flashContainer.innerHTML = "<p>Adobe Flash Player 10.1 or newer is required to use this feature.</p><p><a href='http://get.adobe.com/flashplayer' target='_top'>Get it on Adobe.com.</a></p>";
Recorder.options.flashContainer.style.color = "white";
Recorder.options.flashContainer.style.backgroundColor = "#777";
Recorder.options.flashContainer.style.textAlign = "center";
Recorder.triggerEvent("showFlash");
},
_externalInterfaceDecode: function(data){
return data.replace(/%22/g, "\"").replace(/%5c/g, "\\").replace(/%26/g, "&").replace(/%25/g, "%");
}
};
if(swfobject==undefined){
/* SWFObject v2.2 <http://code.google.com/p/swfobject/> is released under the MIT License <http://www.opensource.org/licenses/mit-license.php */
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