swfobject.js

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/*
 * Ext JS Library 3.0 Pre-alpha
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * [e-mail]
 * 
 * http://extjs.com/license
 */

/*!
 * SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 */
var deconcept = deconcept || {};

if(typeof deconcept.util == "undefined" || !deconcept.util){
    deconcept.util = {};
}

if(typeof deconcept.SWFObjectUtil == "undefined" || !deconcept.SWFObjectUtil){
    deconcept.SWFObjectUtil = {};
}

deconcept.SWFObject = function(swf, id, w, h, ver, c, quality, xiRedirectUrl, redirectUrl, detectKey){
    if(!document.getElementById){
        return;
    }
    this.DETECT_KEY = detectKey ? detectKey : 'detectflash';
    this.skipDetect = deconcept.util.getRequestParameter(this.DETECT_KEY);
    this.params = {};
    this.variables = {};
    this.attributes = [];
    if(swf){
        this.setAttribute('swf', swf);
    }
    if(id){
        this.setAttribute('id', id);
    }
    if(w){
        this.setAttribute('width', w);
    }
    if(h){
        this.setAttribute('height', h);
    }
    if(ver){
        this.setAttribute('version', new deconcept.PlayerVersion(ver.toString().split(".")));
    }
    this.installedVer = deconcept.SWFObjectUtil.getPlayerVersion();
    if(!window.opera && document.all && this.installedVer.major > 7){
        // only add the onunload cleanup if the Flash Player version supports External Interface and we are in IE
        deconcept.SWFObject.doPrepUnload = true;
    }
    if(c){
        this.addParam('bgcolor', c);
    }
    var q = quality ? quality : 'high';
    this.addParam('quality', q);
    this.setAttribute('useExpressInstall', false);
    this.setAttribute('doExpressInstall', false);
    var xir = (xiRedirectUrl) ? xiRedirectUrl : window.location;
    this.setAttribute('xiRedirectUrl', xir);
    this.setAttribute('redirectUrl', '');
    if(redirectUrl){
        this.setAttribute('redirectUrl', redirectUrl);
    }
};

deconcept.SWFObject.prototype = {
    useExpressInstall: function(path){
        this.xiSWFPath = !path ? "expressinstall.swf" : path;
        this.setAttribute('useExpressInstall', true);
    },
    setAttribute: function(name, value){
        this.attributes[name] = value;
    },
    getAttribute: function(name){
        return this.attributes[name];
    },
    addParam: function(name, value){
        this.params[name] = value;
    },
    getParams: function(){
        return this.params;
    },
    addVariable: function(name, value){
        this.variables[name] = value;
    },
    getVariable: function(name){
        return this.variables[name];
    },
    getVariables: function(){
        return this.variables;
    },
    getVariablePairs: function(){
        var variablePairs = [];
        var key;
        var variables = this.getVariables();
        for(key in variables){
            variablePairs[variablePairs.length] = key + "=" + variables[key];
        }
        return variablePairs;
    },
    getSWFHTML: function(){
        var swfNode = "";
        var params = {};
        var key = "";
        var pairs = "";
        if(navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length){ // netscape plugin architecture
            if(this.getAttribute("doExpressInstall")){
                this.addVariable("MMplayerType", "PlugIn");
                this.setAttribute('swf', this.xiSWFPath);
            }
            swfNode = '<embed type="application/x-shockwave-flash" src="' + this.getAttribute('swf') + '" width="' + this.getAttribute('width') + '" height="' + this.getAttribute('height') + '" style="' + this.getAttribute('style') + '"';
            swfNode += ' id="' + this.getAttribute('id') + '" name="' + this.getAttribute('id') + '" ';
            params = this.getParams();
            for(key in params){
                swfNode += [key] + '="' + params[key] + '" ';
            }
            pairs = this.getVariablePairs().join("&");
            if(pairs.length > 0){
                swfNode += 'flashvars="' + pairs + '"';
            }
            swfNode += '/>';
        } else{ // PC IE
            if(this.getAttribute("doExpressInstall")){
                this.addVariable("MMplayerType", "ActiveX");
                this.setAttribute('swf', this.xiSWFPath);
            }
            swfNode = '<object id="' + this.getAttribute('id') + '" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' + this.getAttribute('width') + '" height="' + this.getAttribute('height') + '" style="' + this.getAttribute('style') + '">';
            swfNode += '<param name="movie" value="' + this.getAttribute('swf') + '" />';
            params = this.getParams();
            for(key in params){
                swfNode += '<param name="' + key + '" value="' + params[key] + '" />';
            }
            pairs = this.getVariablePairs().join("&");
            if(pairs.length > 0){
                swfNode += '<param name="flashvars" value="' + pairs + '" />';
            }
            swfNode += "</object>";
        }
        return swfNode;
    },
    write: function(elementId){
        if(this.getAttribute('useExpressInstall')){
            // check to see if we need to do an express install
            var expressInstallReqVer = new deconcept.PlayerVersion([6,0,65]);
            if(this.installedVer.versionIsValid(expressInstallReqVer) && !this.installedVer.versionIsValid(this.getAttribute('version'))){
                this.setAttribute('doExpressInstall', true);
                this.addVariable("MMredirectURL", escape(this.getAttribute('xiRedirectUrl')));
                document.title = document.title.slice(0, 47) + " - Flash Player Installation";
                this.addVariable("MMdoctitle", document.title);
            }
        }
        if(this.skipDetect || this.getAttribute('doExpressInstall') || this.installedVer.versionIsValid(this.getAttribute('version'))){
            var n = (typeof elementId == 'string') ? document.getElementById(elementId) : elementId;
            n.innerHTML = this.getSWFHTML();
            return true;
        } else{
            if(this.getAttribute('redirectUrl') !== ""){
                document.location.replace(this.getAttribute('redirectUrl'));
            }
        }
        return false;
    }
};

/* ---- detection functions ---- */
deconcept.SWFObjectUtil.getPlayerVersion = function(){
    var axo = null;
    var PlayerVersion = new deconcept.PlayerVersion([0,0,0]);
    if(navigator.plugins && navigator.mimeTypes.length){
        var x = navigator.plugins["Shockwave Flash"];
        if(x && x.description){
            PlayerVersion = new deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/, "").replace(/(\s+r|\s+b[0-9]+)/, ".").split("."));
        }
    } else if(navigator.userAgent && navigator.userAgent.indexOf("Windows CE") >= 0){ // if Windows CE
        var counter = 3;
        while(axo){
            try{
                counter++;
                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + counter);
//				document.write("player v: "+ counter);
                PlayerVersion = new deconcept.PlayerVersion([counter,0,0]);
            } catch(e){
                axo = null;
            }
        }
    } else{ // Win IE (non mobile)
        // do minor version lookup in IE, but avoid fp6 crashing issues
        // see http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/
        try{
            axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
        } catch(e){
            try{
                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
                PlayerVersion = new deconcept.PlayerVersion([6,0,21]);
                axo.AllowScriptAccess = "always"; // error if player version < 6.0.47 (thanks to Michael Williams @ Adobe for this code)
            } catch(e){
                if(PlayerVersion.major == 6){
                    return PlayerVersion;
                }
            }
            try{
                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
            } catch(e){
            }
        }

        if(axo !== null){
            PlayerVersion = new deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));
        }
    }
    return PlayerVersion;
};

deconcept.PlayerVersion = function(arrVersion){
    this.major = arrVersion[0] !== null ? parseInt(arrVersion[0], 0) : 0;
    this.minor = arrVersion[1] !== null ? parseInt(arrVersion[1], 0) : 0;
    this.rev = arrVersion[2] !== null ? parseInt(arrVersion[2], 0) : 0;
};

deconcept.PlayerVersion.prototype.versionIsValid = function(fv){
    if(this.major < fv.major){
        return false;
    }
    if(this.major > fv.major){
        return true;
    }
    if(this.minor < fv.minor){
        return false;
    }
    if(this.minor > fv.minor){
        return true;
    }
    if(this.rev < fv.rev){
        return false;
    }
    return true;
};

/* ---- get value of query string param ---- */
deconcept.util = {
    getRequestParameter: function(param){
        var q = document.location.search || document.location.hash;
        if(param === null){
            return q;
        }
        if(q){
            var pairs = q.substring(1).split("&");
            for(var i = 0; i < pairs.length; i++){
                if(pairs[i].substring(0, pairs[i].indexOf("=")) == param){
                    return pairs[i].substring((pairs[i].indexOf("=") + 1));
                }
            }
        }
        return "";
    }
};

/* fix for video streaming bug */
deconcept.SWFObjectUtil.cleanupSWFs = function(){
    var objects = document.getElementsByTagName("OBJECT");
    for(var i = objects.length - 1; i >= 0; i--){
        objects[i].style.display = 'none';
        for(var x in objects[i]){
            if(typeof objects[i][x] == 'function'){
                objects[i][x] = function(){
                };
            }
        }
    }
};

// fixes bug in some fp9 versions see http://blog.deconcept.com/2006/07/28/swfobject-143-released/
if(deconcept.SWFObject.doPrepUnload){
    if(!deconcept.unloadSet){
        deconcept.SWFObjectUtil.prepUnload = function(){
            __flash_unloadHandler = function(){
            };
            __flash_savedUnloadHandler = function(){
            };
            window.attachEvent("onunload", deconcept.SWFObjectUtil.cleanupSWFs);
        };
        window.attachEvent("onbeforeunload", deconcept.SWFObjectUtil.prepUnload);
        deconcept.unloadSet = true;
    }
}