/*
* Gordon: An open source Flash™ runtime written in pure JavaScript
*
* Copyright (c) 2010 Tobias Schneider
* Gordon is freely distributable under the terms of the MIT license.
*/
 
Gordon.require("src/Stream");
 
(function(){
var _g = Gordon;
var _useJson = _g.USE_NATIVE_JSON;
var _m = _g.movieStates;
var _options = {
id: null,
name: null,
width: 0,
height: 0,
autoplay: true,
loop: true,
quality: _g.scaleValues.HIGH,
scale: _g.scaleValues.DEFAULT,
bgcolor: null,
renderer: null,
onLoad: function(){},
onEnterFrame: function(){}
};
 
_g.Movie = function(url, options){
if(!url){ throw new Error("URL of a SWF movie file must be passed as first argument"); }
var t = this;
t._state = _m.LOADING;
var xhr = _g.xhr("GET", url, false);
xhr.overrideMimeType("text/plain; charset=x-user-defined");
xhr.send(null);
if(200 != xhr.status){ throw new Error("Unable to load " + url + " status: " + xhr.status); }
var s = new _g.Stream(xhr.responseText);
var signature = s.readString(3);
var v = _g.validSignatures;
if(signature != v.SWF && signature != v.COMPRESSED_SWF){ throw new Error(url + " is not a SWF movie file"); }
t.url = url;
for(var o in _options){ t[o] = undefined != options[o] ? options[o] : _options[o]; }
t.stream = s;
t.version = s.readUI8();
t.fileLength = s.readUI32();
if(signature == v.COMPRESSED_SWF){ s.decompress(); }
var f = t.frameSize = s.readRect();
t.frameRate = s.readUI16() / 256;
t.frameCount = s.readUI16();
var frameWidth = f.right - f.left;
var frameHeight = f.bottom - f.top;
if(!(t.width && t.height)){
t.width = frameWidth;
t.height = frameHeight;
}
t.currentFrame = 0;
if(!t.renderer){
Gordon.require("src/SvgRenderer");
t.renderer = _g.SvgRenderer;
}
t._renderer = new t.renderer(t.width, t.height, frameWidth, frameHeight, t.quality, t.scale, t.bgcolor);
var d = t._dictionary = {};
var l = t._timeline = [];
var parser = new Worker(_g.ROOT + "src/_parser.js");
parser.onerror = function(){};
parser.onmessage = function(e){
var object = _useJson ? JSON.parse(e.data) : e.data;
if("frame" == object.type){
var bgcolor = object.bgcolor;
if(bgcolor && !t.bgcolor){
t._renderer.setBgcolor(bgcolor);
t.bgcolor = bgcolor;
}
l.push(object);
if(t.id && l.length == 1){
var parent = document.getElementById(t.id);
parent.innerHTML = '';
parent.appendChild(t._renderer.getNode());
t.goto(1);
t.onLoad();
if(t.autoplay){ t.play(); }
}
}else{
t._renderer.defineObject(object);
d[object.id] = object;
}
var action = object.action;
if(action){ eval("object.action = function(){ (" + action + ")(t); }"); }
};
parser.postMessage(s.readString(s._length - s._offset));
t._state = _m.LOADED;
};
_g.Movie.prototype = {
play: function(){
var t = this;
if(t._state != _m.PLAYING){
t._state = _m.PLAYING;
var interval = setInterval(function(){
if(t._state == _m.PLAYING){
t.nextFrame();
if(t.currentFrame == t.frameCount && !t.loop){ t.rewind(); }
}else{ clearInterval(interval); }
}, 1000 / t.frameRate);
}
return t;
},
 
stop: function(){
this._state = _m.STOPPED;
return this;
},
 
nextFrame: function(){
var t = this;
if(t.currentFrame == t.frameCount){ t.currentFrame = 0; }
var frame = t._timeline[t.currentFrame];
var r = t._renderer;
if(frame){
var displayList = frame.displayList;
for(var depth in displayList){
var character = displayList[depth];
if(character){ r.placeCharacter(character); }
else{ r.removeCharacter(depth); }
}
++t.currentFrame;
var action = frame.action;
if(action){ action(); }
t.onEnterFrame();
}
return t;
},
 
prevFrame: function(){
this.goto(this.currentFrame - 1);
return this;
},
 
goto: function(frame){
var t = this;
if(frame < 0){ frame = t.frameCount + frame; }
if(frame && frame <= t.frameCount && frame != t.currentFrame){
while(t.currentFrame != frame){ t.nextFrame(); }
}
return t;
},
 
rewind: function(){
this.stop();
this.goto(1);
return this;
},
 
getUrl: function(url, target){
var u = _g.urlTargets;
switch(target){
case u.BLANK:
window.open(url);
break;
case u.PARENT:
parent.location.href = url;
break;
case u.TOP:
top.location.href = url;
break;
default:
location.href = url;
}
return this;
},
 
toggleQuality: function(){
this._renderer.toggleQuality();
return this;
}
};
})();