islandora/js/swfobject.js

// $Id$
/**
 * SWFObject v2.0: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2006 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 */
if(typeof deconcept == "undefined") var deconcept = new Object();
if(typeof deconcept.util == "undefined") deconcept.util = new Object();
if(typeof deconcept.SWFObjectUtil == "undefined") deconcept.SWFObjectUtil = new Object();
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 = new Object();
    this.variables = new Object();
    this.attributes = new Array();
    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 = new Array();
        var key;
        var variables = this.getVariables();
        for(key in variables){
            variablePairs.push(key +"="+ variables[key]);
        }
        return variablePairs;
    },
    getSWFHTML: function() {
        var swfNode = "";
        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') +'"';
            swfNode += ' id="'+ this.getAttribute('id') +'" name="'+ this.getAttribute('id') +'" ';
            var params = this.getParams();
            for(var key in params){
                swfNode += [key] +'="'+ params[key] +'" ';
            }
            var 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') +'">';
            swfNode += '<param name="movie" value="'+ this.getAttribute('swf') +'" />';
            var params = this.getParams();
            for(var key in params) {
                swfNode += '<param name="'+ key +'" value="'+ params[key] +'" />';
            }
            var 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 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{
        // 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{
            var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
        }catch(e){
            try {
                var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
                PlayerVersion = new deconcept.PlayerVersion([6,0,21]);
                axo.AllowScriptAccess = "always"; // throws 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;
    this.minor = arrVersion[1] != null ? parseInt(arrVersion[1]) : 0;
    this.rev = arrVersion[2] != null ? parseInt(arrVersion[2]) : 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(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=0; i < objects.length; 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 fp9 see http://blog.deconcept.com/2006/07/28/swfobject-143-released/
if (deconcept.SWFObject.doPrepUnload) {
    deconcept.SWFObjectUtil.prepUnload = function() {
        __flash_unloadHandler = function(){};
        __flash_savedUnloadHandler = function(){};
        window.attachEvent("onunload", deconcept.SWFObjectUtil.cleanupSWFs);
    }
    window.attachEvent("onbeforeunload", deconcept.SWFObjectUtil.prepUnload);
}
/* add Array.push if needed (ie5) */
if (Array.prototype.push == null) {
    Array.prototype.push = function(item) {
        this[this.length] = item;
        return this.length;
    }
    }

/* add some aliases for ease of use/backwards compatibility */
var getQueryParamValue = deconcept.util.getRequestParameter;
var FlashObject = deconcept.SWFObject; // for legacy support
var SWFObject = deconcept.SWFObject;