pastebin - Stuff - post number 897511

Stuff
Saturday, February 9th, 2008 at 9:53:17am MST

try {
 
  
  var medialib;
  var mquery;
  var albumremote;
  var artistremote;
  var filepath;
  var timeout;
  var onalbumchange;
  var frame;
  var firefoxClassLoaderURL;
  var policy;
  var tracingClassLoaderClass;
  var bootstraped;
  var albumArtClass;
  var traceFlag = true;
  var firefoxClassLoaderURL
  var applet = null;
  var currentArtist="";
  var currentAlbum="";
  var downloadImage=false;
  var writeMp3Tag=false;
 
  var prefs;
  var splitter;
  var box=null;
  var oldframe=null;
  var framebox;
  var removespacer;
  var firefoxClassLoaderPackages;
  var packages;
  var playlist;
  var loaded = false;
  
  function loadAlbums() {
  
                
    var url;
        var javaInstance
    var album = albumremote.stringValue;
        
        var artist = artistremote.stringValue;
        
        downloadImage = this.prefs.getBoolPref("downloadImages");
    writeMp3Tag =  this.prefs.getBoolPref("writeMp3tag");
 
        
        var doc = frame.contentDocument;
        if (doc.wrappedJSObject) 
                doc = doc.wrappedJSObject;
        
        applet = doc.applets[0];
        
        if (applet == null){
                alert("Applet not loaded. Please ensure that java 1.6 (1.5 for Mac OS) is installed on Songbird");
        } else  {
                
                if (((currentAlbum != album) || (currentArtist != artist)) && (album!="" || artist!=""))
                {
                        
                        currentAlbum = album;
                        currentArtist = artist;
                        
                }
                
                var file = filepath.stringValue;
                        
                        
                        applet.setDownloadImage(downloadImage);
                        applet.setWriteMP3Tag(writeMp3Tag);
                        addAlbumsByArtist();
                        
                applet.loadingDone();
                
        }       
        
        
                
    
        
        
    
  }
  
  function initAlbumApplet() {
    initmedialib();
        
        givePermission();
        
    
    albumremote = SB_NewDataRemote("metadata.album", null);
        artistremote = SB_NewDataRemote("metadata.artist", null);
        filepath = SB_NewDataRemote("metadata.url",null);
        /*
   function onPlaylistCellClick( aEvent ) {
   // we can get the property that was clicked on...
     alert(aEvent.property);
     
     // or the <MediaItem>
     alert(aEvent.item.guid);
    
    // as well as key states from MouseEvent
     alert(aEvent.ctrlKey);
   }
        songbird;
        */
        var albumExtension = {
                albumListener: function(evt) {
                           setAlbumFilter(evt.target.getAttribute("album")); 
                          
                }
        }
        
        var loadedExtension = {
                loadedListener: function(evt) {
                                
                                loadAlbums();           
                }
        }
        
        var playExtension = {
                playListener :  function(evt) {
                        setAlbumFilter(evt.target.getAttribute("album"));
                        playFilter();
                }
        }
        
        var mainWindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
                  .getInterface(Components.interfaces.nsIWebNavigation)
                  .QueryInterface(Components.interfaces.nsIDocShellTreeItem)
                  .rootTreeItem
                  .QueryInterface(Components.interfaces.nsIInterfaceRequestor)
                  .getInterface(Components.interfaces.nsIDOMWindow);
        mainWindow.document.addEventListener("albumChangeEvent", function(e) { albumExtension.albumListener(e); }, false, true);
        mainWindow.document.addEventListener("appletLoadedEvent", function(e) { loadedExtension.loadedListener(e); }, false, true);
        mainWindow.document.addEventListener("AlbumAppletPlayEvent", function(e) { playExtension.playListener(e); }, false, true);
        //mainWindow.document.addEventListener("PlaylistCellClick", onPlaylistCellClick, false, true);
        var onalbumchange = { 
            observe: function( aSubject, aTopic, aData ) {
        syncSelectedAlbum();
      } 
    };
    albumremote.bindObserver(onalbumchange, true);
        
        
        
        
        var firefoxClassLoaderURL = 
        new java.net.URL(getPath("albumapplet") + "components/firefoxClassLoader.jar");
    
    
        
        
        var extensionPath = getPath("albumapplet");
        
              
        
        /*
         *  Enumerate URLs to our JARs and class directories
         */
                 
        var libPath = extensionPath + "components/lib/";
        var jarFilenames = [
                        "classes/",
            "albumjava/", //the albumJava classes,
                        "albumjava/ascrblr-1.0-alpha2.jar",
                        "albumjava/jdom.jar",
                        "albumjava/swingx-2007_10_14.jar",
                        "albumjava/sqlitejdbc-v037-nested.jar",
                        "albumjava/JID3.jar",
                        "albumjava/TimingFramework-1.0.jar"
                        
        ];
        
        var jarFilepaths = [];
        for (var i = 0; i < jarFilenames.length; i++) {
            jarFilepaths.push(libPath + jarFilenames[i]);
        }
        
        /*
         *  Load them up!
         */
        packages = loadJava(jarFilepaths);
        
        
        
        
        /*
         *  Create a sample Java object
         */
       
                placeApplet();
                
                
        
                
                
    
    
  }
 
 
  
        function syncSelectedAlbum()
        {
                var album = albumremote.stringValue;
                
                var artist = artistremote.stringValue;
                if (((currentAlbum != album) || (currentArtist != artist)) && (album!="" || artist!="") && applet!=null)
                {
                        applet.setSelectedAlbum(album,artist);
                        
                }
        }
   
        
        
        function setAlbumFilter( aAlbum ) {
                
                try {
                  // Crack out the variables we'll need
                  var playlist = document.getElementById("sb-library-page-playlist");
                  var mediaListView = playlist.mediaListView;
                  var cascadeFilterSet = mediaListView.cascadeFilterSet;
                  // Find which filter index is the album filter
                  var albumIndex = -1;
                  for ( albumIndex = 0; albumIndex < cascadeFilterSet.length; albumIndex++ ) {
                        if ( cascadeFilterSet.getProperty( albumIndex ) == SBProperties.albumName )
                          break;
                  }
                  // If we found the albumIndex
                  if ( albumIndex < cascadeFilterSet.length ) {
                        // Get all the valid albums
                        var albums = cascadeFilterSet.getValues( albumIndex );
                        // Find the requested album
                        while ( albums.hasMore() ) {
                          var album = albums.getNext();
                          if ( album == aAlbum ) {
                                // And set a single filter value and return
                                cascadeFilterSet.set( albumIndex, [ aAlbum ], 1 );
                                
                                return;
                          }
                        }
                        // OTHERWISE, I guess you meant to clear the filter, right?
                        cascadeFilterSet.set( albumIndex, [ ], 0 );
                  }
                } catch ( err ) {
                  alert( "setAlbumFilter( '" + aAlbum + "' )\n\n" + err );
                }
        }
        
        function playFilter(){
                try {
                         var playlist = document.getElementById("sb-library-page-playlist");
                         playlist.sendPlayEvent();
                } catch( err) {
                        alert("playFilter error. Someone messed up. I swear, it wasn't me! \n" + err);
                }
        }
                
                
        
 
  function resetalbumArt() {
    
    medialib = null;
    mquery = null;
    albumremote.unbind();
    albumremote = null;
    onalbumchange = null;
        button = null;
  }
 
  function initmedialib() {
    //medialib = Components.classes["@songbirdnest.com/Songbird/MediaLibrary;1"].createInstance(Components.interfaces.sbILibrary);
    mquery = Components.classes["@songbirdnest.com/Songbird/DatabaseQuery;1"].createInstance(Components.interfaces.sbIDatabaseQuery);
    mquery.setDatabaseGUID("main@library.songbirdnest.com"); 
    //medialib.setQueryObject(mquery);
        prefs = Components.classes["@mozilla.org/preferences-service;1"]
                         .getService(Components.interfaces.nsIPrefService)
                         .getBranch("albumapplet.");
                prefs.QueryInterface(Components.interfaces.nsIPrefBranch2);
  }
  
  function placeApplet() { //places the applet in the interface
        var boxstring;
        var oldframestring;
        
        if (box != null)
        {
                try{
                        box.removeChild(framebox);
                        box.removeChild(splitter);
                        }
                catch (e){}
                        
        }
 
        
        framebox = document.createElement("hbox");
        framebox.setAttribute("flex","1");
        framebox.setAttribute("align","top");
        framebox.setAttribute("id","appletbox");
        //framebox.setAttribute("onclick","getAlbum();");
        
        
        frame = document.createElement("iframe");
        
   frame.setAttribute("flex","1");
   frame.setAttribute("id","flowapplet");
   frame.setAttribute("min-height","10");
   frame.setAttribute("height","1000");
   frame.setAttribute("src",getPath("albumapplet") + "components/lib/albumjava/album.htm");
   frame.setAttribute("mayscript","yes");
   
  
   
        framebox.appendChild(frame);
        splitter = document.createElement("sb-smart-splitter");
        
        splitter.setAttribute("id","horz_splitter");
        splitter.setAttribute("state", "open");
    splitter.setAttribute("resizebefore", "closest");
    splitter.setAttribute("resizeafter", "closest");
    splitter.setAttribute("collapse", "before");
        var grippy = document.createElement( "grippy" );
    splitter.appendChild(grippy);
        
 
        box=document.getElementById("sb-playlist");
        oldframe = document.getElementById("sb-playlist-filters");
        
        
        box.insertBefore(framebox,oldframe);
        box.insertBefore(splitter,oldframe);
        
        
        
        }
        
        function testninja()
        {
                alert("win!");
        }
        function getAlbum()
        {
                try{
                        applet= frame.contentDocument.applets[0];
                        alert(applet.getCurrentAlbum());
                }
                catch(e){}
        }
                
  
 
  function onalbumChange() {
    loadalbum();
  }
  
  function addAlbumsByArtist()
  {
        //Remove
        var statusDataRemote;
    var faceplateReg;
    var faceplatePane;
 
    statusDataRemote = Components.
                          classes["@songbirdnest.com/Songbird/DataRemote;1"].
                          createInstance(Components.interfaces.sbIDataRemote);
    statusDataRemote.init("faceplate.status.text", null);
        //End Remove
        mquery.resetQuery();
        mquery.addQuery("SELECT DISTINCT r1.obj AS album,r2.obj AS artist, r1.content_url AS file FROM (media_items NATURAL JOIN  resource_properties) AS r1, resource_properties AS r2  WHERE r1.property_id=2 AND r2.property_id=3 AND r1.guid=r2.guid  GROUP BY album ORDER BY r2.obj ");
        mquery.execute();
        mquery.waitForCompletion();
        var albums = mquery.getResultObject();
        var count = albums.getRowCount();
        var index
        var artist;
        dump("Calling applet");
        applet.setAlbumCount(count);
        for( var i = 0; i<count; i++)
        {
                applet.addImage(albums.getRowCellByColumn(i,"file"),albums.getRowCellByColumn(i,"artist"),albums.getRowCellByColumn(i,"album"));
        }
        
        
        }
        
        function getPath(extensionName) {
                var chromeRegistry =
                Components.classes["@mozilla.org/chrome/chrome-registry;1"]
                .getService(Components.interfaces.nsIChromeRegistry);
 
                var uri =
                Components.classes["@mozilla.org/network/standard-url;1"]
                .createInstance(Components.interfaces.nsIURI);
 
                uri.spec = "chrome://" + extensionName + "/content/";
 
                var path = chromeRegistry.convertChromeURL(uri);
                if (typeof(path) == "object") {
                path = path.spec;
                }
 
                path = path.substring(0, path.indexOf("/chrome/") + 1);
 
                return path;
        }
        
        function givePermission()
        {
                firefoxClassLoaderURL = 
                new java.net.URL(getPath("albumapplet") + "components/firefoxClassLoader.jar");
 
                /*
                 *  Step 1. Load the bootstraping firefoxClassLoader.jar.
                 */
                var bootstrapClassLoader = java.net.URLClassLoader.newInstance([ firefoxClassLoaderURL ]);
                
                /*
                 *  Step 2. Instantiate a URLSetPolicy object from firefoxClassLoader.jar.
                 */
                var policyClass = java.lang.Class.forName(
                        "edu.mit.simile.firefoxClassLoader.URLSetPolicy",
                        true,
                        bootstrapClassLoader
                );
                policy = policyClass.newInstance();
                
                /*
                 *  Step 3. Now, the trick: We wrap our own URLSetPolicy around
                 *  the current security policy of the JVM security manager. This
                 *  allows us to give our own Java code whatever permission we
                 *  want, even though Firefox doesn't give us any permission.
                 */
                policy.setOuterPolicy(java.security.Policy.getPolicy());
                java.security.Policy.setPolicy(policy);
                
                /*
                 *  Step 4. Give ourselves all permission. Yay!
                 */
                policy.addPermission(new java.security.AllPermission());
                        
                /*
                 *  That's pretty much it for the security bootstraping hack. But we want to
                 *  do a little more. We want our own class loader for subsequent JARs that
                 *  we load.
                 */
                 
                /*
                 *  Step 5. Reload firefoxClassLoader.jar and so we can make use of
                 *  TracingClassLoader. We need to reload it because when it was
                 *  loaded previously, we had not yet set the policy to give it
                 *  enough permission for loading classes.
                 */
                  
                policy.addURL(firefoxClassLoaderURL);
                
                firefoxClassLoaderPackages = new WrappedPackages(
                        java,
                        java.net.URLClassLoader.newInstance([ firefoxClassLoaderURL ])
                );
                tracingClassLoaderClass = 
                        firefoxClassLoaderPackages.getClass("edu.mit.simile.firefoxClassLoader.TracingClassLoader");
                bootstraped = true;
                dump("Permissions succesfully given");
 
        }
 
        function loadJava(jarURLStrings)
        {
                var jarURLs = [];
                
                /*
                 *  We include the firefoxClassLoader.jar again whenever we
                 *  load more JARs so that we can use various reflection
                 *  utility classes in firefoxClassLoader.jar on these
                 *  JARs.
                 */
                 jarURLs.push(firefoxClassLoaderURL);
                 policy.addURL(jarURLs[0]);
                
                /*
                 *  Now we add the rest of the JARs.
                 */
                for (var i = 0; i < jarURLStrings.length; i++) {
                        var jarURL = new java.net.URL(jarURLStrings[i]);
                        jarURLs.push(jarURL);
                        
                        policy.addURL(jarURL); // include the URL in the policy
                }
                        
                /*
                 *  Create a new TracingClassLoader
                 */
                var classLoader = tracingClassLoaderClass.m("newInstance")(traceFlag);
                
                /*
                 *  Give it the JARS
                 */
                for (var i = 0; i < jarURLs.length; i++) {
                        classLoader.add(jarURLs[i]);
                }
                java.lang.Thread.currentThread().setContextClassLoader(classLoader);
                
                /*
                 *  Wrap up the class loader and return
                 */
                var packages = new WrappedPackages(java, classLoader);
                
                return packages;
        }
 
        function WrappedPackages(java, classLoader) {
                var packages = java.lang.Class.forName(
                        "edu.mit.simile.firefoxClassLoader.Packages",
                        true,
                        classLoader
                ).newInstance();
                
                var argumentsToArray = function(args) {
                        var a = [];
                        for (var i = 0; i < args.length; i++) {
                                a[i] = args[i];
                        }
                        return a;
                }
 
                this.getClass = function(className) {
                        var classWrapper = packages.getClass(className);
                        if (classWrapper) {
                                return {
                                        n : function() {
                                                return classWrapper.callConstructor(argumentsToArray(arguments));
                                        },
                                        f : function(fieldName) {
                                                return classWrapper.getField(fieldName);
                                        },
                                        m : function(methodName) {
                                                return function() {
                                                        return classWrapper.callMethod(methodName, argumentsToArray(arguments));
                                                };
                                        }
                                };
                        } else {
                                return null;
                        }
                };
                
                this.setTracing = function(enable) {
                        classLoader.setTracing((enable) ? true : false);
                };
        }
                
        
  
 
 
        var prefWatcher = {
           pref: null,
              
           // Initialize the extension
           
           startup: function()
           {
                 // Register to receive notifications of preference changes
                 
                 this.pref = Components.classes["@mozilla.org/preferences-service;1"]
                         .getService(Components.interfaces.nsIPrefService)
                         .getBranch("albumapplet.appletPlacement");
                 this.pref.QueryInterface(Components.interfaces.nsIPrefBranch2);
                 this.pref.addObserver("", this, false);
                 
                 
                 
           },
           observe: function(subject, topic, data)
           {
                 if (topic != "nsPref:changed")
                 {
                   return;
                 }
         
                 placeApplet();
           },
           
           shutdown: function()
          {
                this.pref.removeObserver("", this);
          }
        }
        prefWatcher.startup();
} catch (e) {
}
   

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try {

var medialib;
  var mquery;
  var albumremote;
  var artistremote;
  var filepath;
  var timeout;
  var onalbumchange;
  var frame;
  var firefoxClassLoaderURL;
  var policy;
  var tracingClassLoaderClass;
  var bootstraped;
  var albumArtClass;
  var traceFlag = true;
  var firefoxClassLoaderURL
  var applet = null;
  var currentArtist="";
  var currentAlbum="";
  var downloadImage=false;
  var writeMp3Tag=false;

var prefs;
  var splitter;
  var box=null;
  var oldframe=null;
  var framebox;
  var removespacer;
  var firefoxClassLoaderPackages;
  var packages;
  var playlist;
  var loaded = false;
  
  function loadAlbums() {
  
		
    var url;
	var javaInstance
    var album = albumremote.stringValue;
	
	var artist = artistremote.stringValue;
	
	downloadImage = this.prefs.getBoolPref("downloadImages");
    writeMp3Tag =  this.prefs.getBoolPref("writeMp3tag");
 
	
	var doc = frame.contentDocument;
	if (doc.wrappedJSObject) 
		doc = doc.wrappedJSObject;
	
	applet = doc.applets[0];
	
	if (applet == null){
		alert("Applet not loaded. Please ensure that java 1.6 (1.5 for Mac OS) is installed on Songbird");
	} else	{
		
		if (((currentAlbum != album) || (currentArtist != artist)) && (album!="" || artist!=""))
		{
			
			currentAlbum = album;
			currentArtist = artist;
			
		}
		
		var file = filepath.stringValue;
			
			
			applet.setDownloadImage(downloadImage);
			applet.setWriteMP3Tag(writeMp3Tag);
			addAlbumsByArtist();
			
		applet.loadingDone();
		
	}	
	
	
		
    
	
	
    
  }
  
  function initAlbumApplet() {
    initmedialib();
	
	givePermission();
	
    
    albumremote = SB_NewDataRemote("metadata.album", null);
	artistremote = SB_NewDataRemote("metadata.artist", null);
	filepath = SB_NewDataRemote("metadata.url",null);
	/*
   function onPlaylistCellClick( aEvent ) {
   // we can get the property that was clicked on...
     alert(aEvent.property);
     
     // or the <MediaItem>
     alert(aEvent.item.guid);
    
    // as well as key states from MouseEvent
     alert(aEvent.ctrlKey);
   }
	songbird;
	*/
	var albumExtension = {
		albumListener: function(evt) {
			   setAlbumFilter(evt.target.getAttribute("album")); 
			  
		}
	}
	
	var loadedExtension = {
		loadedListener: function(evt) {
				
				loadAlbums();           
		}
	}
	
	var playExtension = {
		playListener :  function(evt) {
			setAlbumFilter(evt.target.getAttribute("album"));
			playFilter();
		}
	}
	
	var mainWindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
                  .getInterface(Components.interfaces.nsIWebNavigation)
                  .QueryInterface(Components.interfaces.nsIDocShellTreeItem)
                  .rootTreeItem
                  .QueryInterface(Components.interfaces.nsIInterfaceRequestor)
                  .getInterface(Components.interfaces.nsIDOMWindow);
	mainWindow.document.addEventListener("albumChangeEvent", function(e) { albumExtension.albumListener(e); }, false, true);
	mainWindow.document.addEventListener("appletLoadedEvent", function(e) { loadedExtension.loadedListener(e); }, false, true);
	mainWindow.document.addEventListener("AlbumAppletPlayEvent", function(e) { playExtension.playListener(e); }, false, true);
	//mainWindow.document.addEventListener("PlaylistCellClick", onPlaylistCellClick, false, true);
	var onalbumchange = { 
	    observe: function( aSubject, aTopic, aData ) {
        syncSelectedAlbum();
      } 
    };
    albumremote.bindObserver(onalbumchange, true);
	
	
	
	
	var firefoxClassLoaderURL = 
        new java.net.URL(getPath("albumapplet") + "components/firefoxClassLoader.jar");
    
    
	
	
	var extensionPath = getPath("albumapplet");
        
              
        
        /*
         *  Enumerate URLs to our JARs and class directories
         */
		 
        var libPath = extensionPath + "components/lib/";
        var jarFilenames = [
			"classes/",
            "albumjava/", //the albumJava classes,
			"albumjava/ascrblr-1.0-alpha2.jar",
			"albumjava/jdom.jar",
			"albumjava/swingx-2007_10_14.jar",
			"albumjava/sqlitejdbc-v037-nested.jar",
			"albumjava/JID3.jar",
			"albumjava/TimingFramework-1.0.jar"
			
        ];
        
        var jarFilepaths = [];
        for (var i = 0; i < jarFilenames.length; i++) {
            jarFilepaths.push(libPath + jarFilenames[i]);
        }
        
        /*
         *  Load them up!
         */
        packages = loadJava(jarFilepaths);
        
        
        
        
        /*
         *  Create a sample Java object
         */
       
		placeApplet();
		
		
	
		
		
    
    
  }

function resetalbumArt() {
    
    medialib = null;
    mquery = null;
    albumremote.unbind();
    albumremote = null;
    onalbumchange = null;
	button = null;
  }

framebox = document.createElement("hbox");
	framebox.setAttribute("flex","1");
	framebox.setAttribute("align","top");
	framebox.setAttribute("id","appletbox");
	//framebox.setAttribute("onclick","getAlbum();");
	
	
	frame = document.createElement("iframe");
	
   frame.setAttribute("flex","1");
   frame.setAttribute("id","flowapplet");
   frame.setAttribute("min-height","10");
   frame.setAttribute("height","1000");
   frame.setAttribute("src",getPath("albumapplet") + "components/lib/albumjava/album.htm");
   frame.setAttribute("mayscript","yes");
   
  
   
	framebox.appendChild(frame);
	splitter = document.createElement("sb-smart-splitter");
	
	splitter.setAttribute("id","horz_splitter");
	splitter.setAttribute("state", "open");
    splitter.setAttribute("resizebefore", "closest");
    splitter.setAttribute("resizeafter", "closest");
    splitter.setAttribute("collapse", "before");
	var grippy = document.createElement( "grippy" );
    splitter.appendChild(grippy);

box=document.getElementById("sb-playlist");
	oldframe = document.getElementById("sb-playlist-filters");
	
	
	box.insertBefore(framebox,oldframe);
	box.insertBefore(splitter,oldframe);
	
	
	
	}
	
	function testninja()
	{
		alert("win!");
	}
	function getAlbum()
	{
		try{
			applet= frame.contentDocument.applets[0];
			alert(applet.getCurrentAlbum());
		}
		catch(e){}
	}

function onalbumChange() {
    loadalbum();
  }
  
  function addAlbumsByArtist()
  {
	//Remove
	var statusDataRemote;
    var faceplateReg;
    var faceplatePane;

statusDataRemote = Components.
                          classes["@songbirdnest.com/Songbird/DataRemote;1"].
                          createInstance(Components.interfaces.sbIDataRemote);
    statusDataRemote.init("faceplate.status.text", null);
	//End Remove
	mquery.resetQuery();
	mquery.addQuery("SELECT DISTINCT r1.obj AS album,r2.obj AS artist, r1.content_url AS file FROM (media_items NATURAL JOIN  resource_properties) AS r1, resource_properties AS r2  WHERE r1.property_id=2 AND r2.property_id=3 AND r1.guid=r2.guid  GROUP BY album ORDER BY r2.obj ");
	mquery.execute();
	mquery.waitForCompletion();
	var albums = mquery.getResultObject();
	var count = albums.getRowCount();
	var index
	var artist;
	dump("Calling applet");
	applet.setAlbumCount(count);
	for( var i = 0; i<count; i++)
	{
		applet.addImage(albums.getRowCellByColumn(i,"file"),albums.getRowCellByColumn(i,"artist"),albums.getRowCellByColumn(i,"album"));
	}
	
	
	}
	
	function getPath(extensionName) {
		var chromeRegistry =
		Components.classes["@mozilla.org/chrome/chrome-registry;1"]
		.getService(Components.interfaces.nsIChromeRegistry);

var uri =
		Components.classes["@mozilla.org/network/standard-url;1"]
		.createInstance(Components.interfaces.nsIURI);

uri.spec = "chrome://" + extensionName + "/content/";

var path = chromeRegistry.convertChromeURL(uri);
		if (typeof(path) == "object") {
		path = path.spec;
		}

path = path.substring(0, path.indexOf("/chrome/") + 1);

return path;
	}
	
	function givePermission()
	{
		firefoxClassLoaderURL = 
		new java.net.URL(getPath("albumapplet") + "components/firefoxClassLoader.jar");

/*
		 *  Step 1. Load the bootstraping firefoxClassLoader.jar.
		 */
		var bootstrapClassLoader = java.net.URLClassLoader.newInstance([ firefoxClassLoaderURL ]);
		
		/*
		 *  Step 2. Instantiate a URLSetPolicy object from firefoxClassLoader.jar.
		 */
		var policyClass = java.lang.Class.forName(
			"edu.mit.simile.firefoxClassLoader.URLSetPolicy",
			true,
			bootstrapClassLoader
		);
		policy = policyClass.newInstance();
		
		/*
		 *  Step 3. Now, the trick: We wrap our own URLSetPolicy around
		 *  the current security policy of the JVM security manager. This
		 *  allows us to give our own Java code whatever permission we
		 *  want, even though Firefox doesn't give us any permission.
		 */
		policy.setOuterPolicy(java.security.Policy.getPolicy());
		java.security.Policy.setPolicy(policy);
		
		/*
		 *  Step 4. Give ourselves all permission. Yay!
		 */
		policy.addPermission(new java.security.AllPermission());
			
		/*
		 *  That's pretty much it for the security bootstraping hack. But we want to
		 *  do a little more. We want our own class loader for subsequent JARs that
		 *  we load.
		 */
		 
		/*
		 *  Step 5. Reload firefoxClassLoader.jar and so we can make use of
		 *  TracingClassLoader. We need to reload it because when it was
		 *  loaded previously, we had not yet set the policy to give it
		 *  enough permission for loading classes.
		 */
		  
		policy.addURL(firefoxClassLoaderURL);
		
		firefoxClassLoaderPackages = new WrappedPackages(
			java,
			java.net.URLClassLoader.newInstance([ firefoxClassLoaderURL ])
		);
		tracingClassLoaderClass = 
			firefoxClassLoaderPackages.getClass("edu.mit.simile.firefoxClassLoader.TracingClassLoader");
		bootstraped = true;
		dump("Permissions succesfully given");

}

function WrappedPackages(java, classLoader) {
		var packages = java.lang.Class.forName(
			"edu.mit.simile.firefoxClassLoader.Packages",
			true,
			classLoader
		).newInstance();
		
		var argumentsToArray = function(args) {
			var a = [];
			for (var i = 0; i < args.length; i++) {
				a[i] = args[i];
			}
			return a;
		}

this.getClass = function(className) {
			var classWrapper = packages.getClass(className);
			if (classWrapper) {
				return {
					n : function() {
						return classWrapper.callConstructor(argumentsToArray(arguments));
					},
					f : function(fieldName) {
						return classWrapper.getField(fieldName);
					},
					m : function(methodName) {
						return function() {
							return classWrapper.callMethod(methodName, argumentsToArray(arguments));
						};
					}
				};
			} else {
				return null;
			}
		};
		
		this.setTracing = function(enable) {
			classLoader.setTracing((enable) ? true : false);
		};
	}

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