source: Dev/trunk/src/client/dojox/embed/Quicktime.js

define([
        "dojo/_base/kernel",
        "dojo/_base/lang",
        "dojo/_base/sniff",
        "dojo/_base/window",
        "dojo/dom",
        "dojo/dom-construct",
        "dojo/domReady!" // fixes doc.readyState in Fx<=3.5
], function (dojo, lang, has, windowUtil, domUtil, domConstruct) {
        // module:
        //              dojox/embed/Quicktime
        // summary:
        //              Base functionality to insert a QuickTime movie
        //              into a document on the fly.

        var qtMarkup,
                qtVersion = { major: 0, minor: 0, rev: 0 },
                installed,
                __def__ = {
                        width: 320,
                        height: 240,
                        redirect: null
                },
                keyBase = "dojox-embed-quicktime-",
                keyCount = 0,
                getQTMarkup = 'This content requires the <a href="http://www.apple.com/quicktime/download/" title="Download and install QuickTime.">QuickTime plugin</a>.',
                embed = dojo.getObject("dojox.embed", true);

        //      *** private methods *********************************************************
        function prep(kwArgs){
                kwArgs = dojo.mixin(lang.clone(__def__), kwArgs || {});
                if(!("path" in kwArgs) && !kwArgs.testing){
                        console.error("dojox.embed.Quicktime(ctor):: no path reference to a QuickTime movie was provided.");
                        return null;
                }
                if(kwArgs.testing){
                        kwArgs.path = "";
                }
                if(!("id" in kwArgs)){
                        kwArgs.id = keyBase + keyCount++;
                }
                return kwArgs;
        }

        if(has("ie")){
                installed = (function(){
                        try{
                                var o = new ActiveXObject("QuickTimeCheckObject.QuickTimeCheck.1");
                                if(o!==undefined){
                                        //      pull the qt version too
                                        var v = o.QuickTimeVersion.toString(16);
                                        function p(i){ return (v.substring(i, i+1)-0) || 0; }
                                        qtVersion = {
                                                major: p(0),
                                                minor: p(1),
                                                rev: p(2)
                                        };
                                        return o.IsQuickTimeAvailable(0);
                                }
                        } catch(e){ }
                        return false;
                })();

                qtMarkup = function(kwArgs){
                        if(!installed){ return { id: null, markup: getQTMarkup }; }
                        
                        kwArgs = prep(kwArgs);
                        if(!kwArgs){ return null; }
                        var s = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" '
                                + 'codebase="http://www.apple.com/qtactivex/qtplugin.cab#version=6,0,2,0" '
                                + 'id="' + kwArgs.id + '" '
                                + 'width="' + kwArgs.width + '" '
                                + 'height="' + kwArgs.height + '">'
                                + '<param name="src" value="' + kwArgs.path + '"/>';
                        for(var p in kwArgs.params||{}){
                                s += '<param name="' + p + '" value="' + kwArgs.params[p] + '"/>';
                        }
                        s += '</object>';
                        return { id: kwArgs.id, markup: s };
                }
        } else {
                installed = (function(){
                        for(var i=0, p=navigator.plugins, l=p.length; i<l; i++){
                                if(p[i].name.indexOf("QuickTime")>-1){
                                        return true;
                                }
                        }
                        return false;
                })();

                qtMarkup = function(kwArgs){
                        if(!installed){ return { id: null, markup: getQTMarkup }; }

                        kwArgs = prep(kwArgs);
                        if(!kwArgs){ return null; }
                        var s = '<embed type="video/quicktime" src="' + kwArgs.path + '" '
                                + 'id="' + kwArgs.id + '" '
                                + 'name="' + kwArgs.id + '" '
                                + 'pluginspage="www.apple.com/quicktime/download" '
                                + 'enablejavascript="true" '
                                + 'width="' + kwArgs.width + '" '
                                + 'height="' + kwArgs.height + '"';
                        for(var p in kwArgs.params||{}){
                                s += ' ' + p + '="' + kwArgs.params[p] + '"';
                        }
                        s += '></embed>';
                        return { id: kwArgs.id, markup: s };
                }
        }

        /*=====
        var __QTArgs = {
                // path: String
                //              The URL of the movie to embed.
                // id: String?
                //              A unique key that will be used as the id of the created markup.  If you don't
                //              provide this, a unique key will be generated.
                // width: Number?
                //              The width of the embedded movie; the default value is 320px.
                // height: Number?
                //              The height of the embedded movie; the default value is 240px
                // params: Object?
                //              A set of key/value pairs that you want to define in the resultant markup.
                // redirect: String?
                //              A url to redirect the browser to if the current QuickTime version is not supported.
        };
        =====*/

        var Quicktime=function(/* __QTArgs */kwArgs, /* DOMNode */node){
                // summary:
                //              Returns a reference to the HTMLObject/HTMLEmbed that is created to
                //              place the movie in the document.  You can use this either with or
                //              without the new operator.  Note that with any other DOM manipulation,
                //              you must wait until the document is finished loading before trying
                //              to use this.
                //
                // example:
                //              Embed a QuickTime movie in a document using the new operator, and get a reference to it.
                //      |       var movie = new dojox.embed.Quicktime({
                //      |               path: "path/to/my/movie.mov",
                //      |               width: 400,
                //      |               height: 300
                //      |       }, myWrapperNode);
                //
                // example:
                //              Embed a movie in a document without using the new operator.
                //      |       var movie = dojox.embed.Quicktime({
                //      |               path: "path/to/my/movie.mov",
                //      |               width: 400,
                //      |               height: 300
                //      |       }, myWrapperNode);

                return Quicktime.place(kwArgs, node);   //      HTMLObject
        };

        dojo.mixin(Quicktime, {
                // summary:
                //              A singleton object used internally to get information
                //              about the QuickTime player available in a browser, and
                //              as the factory for generating and placing markup in a
                //              document.
                //
                // minSupported: Number
                //              The minimum supported version of the QuickTime Player, defaults to
                //              6.
                // available: Boolean
                //              Whether or not QuickTime is available.
                // supported: Boolean
                //              Whether or not the QuickTime Player installed is supported by
                //              dojox.embed.
                // version: Object
                //              The version of the installed QuickTime Player; takes the form of
                //              { major, minor, rev }.  To get the major version, you'd do this:
                //              var v=dojox.embed.Quicktime.version.major;
                // initialized: Boolean
                //              Whether or not the QuickTime engine is available for use.
                // onInitialize: Function
                //              A stub you can connect to if you are looking to fire code when the
                //              engine becomes available.  A note: do NOT use this stub to embed
                //              a movie in your document; this WILL be fired before DOMContentLoaded
                //              is fired, and you will get an error.  You should use dojo.addOnLoad
                //              to place your movie instead.

                minSupported: 6,
                available: installed,
                supported: installed,
                version: qtVersion,
                initialized: false,
                onInitialize: function(){
                        Quicktime.initialized = true;
                },      //      stub function to let you know when this is ready

                place: function(kwArgs, node){
                        var o = qtMarkup(kwArgs);

                        if(!(node = domUtil.byId(node))){
                                node=domConstruct.create("div", { id:o.id+"-container" }, windowUtil.body());
                        }
                        
                        if(o){
                                node.innerHTML = o.markup;
                                if(o.id){
                                        return has("ie") ? dom.byId(o.id) : document[o.id];     //      QuickTimeObject
                                }
                        }
                        return null;    //      QuickTimeObject
                }
        });

        //      go get the info
        if(!has("ie")){
                var id = "-qt-version-test",
                        o = qtMarkup({ testing:true , width:4, height:4 }),
                        c = 10, // counter to prevent infinite looping
                        top = "-1000px",
                        widthHeight = "1px";

                function getVer(){
                        setTimeout(function(){
                                var qt = document[o.id],
                                        n = domUtil.byId(id);

                                if(qt){
                                        try{
                                                var v = qt.GetQuickTimeVersion().split(".");
                                                Quicktime.version = { major: parseInt(v[0]||0), minor: parseInt(v[1]||0), rev: parseInt(v[2]||0) };
                                                if((Quicktime.supported = v[0])){
                                                        Quicktime.onInitialize();
                                                }
                                                c = 0;
                                        } catch(e){
                                                if(c--){
                                                        getVer();
                                                }
                                        }
                                }

                                if(!c && n){ domConstruct.destroy(n); }
                        }, 20);
                }

                domConstruct.create("div", {
                        innerHTML: o.markup,
                        id: id,
                        style: { top:top, left:0, width:widthHeight, height:widthHeight, overflow:"hidden", position:"absolute" }
                }, windowUtil.body());
                getVer();
        }else if(has("ie") && installed){
                // we already know if IE has QuickTime installed, but we need this to seem like a callback.
                setTimeout(function(){
                        Quicktime.onInitialize();
                }, 10);
        }

        lang.setObject("dojox.embed.Quicktime", Quicktime);

        return Quicktime;
});