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 # -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 #

 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 function AppPicker() {};

 var g_dialog = null;

 AppPicker.prototype = 

 {

     // Class members

     _incomingParams:null,

     /** 

     * Init the dialog and populate the application list

     */ 

     appPickerLoad: function appPickerLoad() {

         const nsILocalHandlerApp = Components.interfaces.nsILocalHandlerApp;

         this._incomingParams = window.arguments[0];

         this._incomingParams.handlerApp = null;

         document.title = this._incomingParams.title;

         // Header creation - at the very least, we must have 

         // a mime type:

         //        

         // (icon) Zip File

         // (icon) filename

         //

         // (icon) Web Feed

         // (icon) mime/type

         //

         // (icon) mime/type

         // (icon)

         var mimeInfo = this._incomingParams.mimeInfo;

         var filename = this._incomingParams.filename;

         if (!filename) {

           filename = mimeInfo.MIMEType;

         }

         var description = this._incomingParams.description;

         if (!description) {

           description = filename;

           filename = "";

         }

         // Setup the dialog header information

         document.getElementById("content-description").setAttribute("value", 

           description);

         document.getElementById("suggested-filename").setAttribute("value",

           filename);

         document.getElementById("content-icon").setAttribute("src",

           "moz-icon://" + filename + "?size=32&contentType=" +

           mimeInfo.MIMEType);

         // Grab a list of nsILocalHandlerApp application helpers to list

         var fileList = mimeInfo.possibleLocalHandlers;

         var list = document.getElementById("app-picker-listbox");

         var primaryCount = 0;

         if (!fileList || fileList.length == 0) {

           // display a message saying nothing is configured

           document.getElementById("app-picker-notfound").removeAttribute("hidden");

           return;

         }

         for (var idx = 0; idx < fileList.length; idx++) {

           var file = fileList.queryElementAt(idx, nsILocalHandlerApp);

           try {

               if (!file.executable || !file.executable.isFile())

                 continue;

           } catch (err) {

             continue;

           }

           var item = document.createElement("listitem");

           item.className = "listitem-iconic";

           item.handlerApp = file;

           item.setAttribute("label", this.getFileDisplayName(file.executable));

           item.setAttribute("image", this.getFileIconURL(file.executable));

           list.appendChild(item);

           primaryCount++;

         }

         if ( primaryCount == 0 ) {

           // display a message saying nothing is configured

           document.getElementById("app-picker-notfound").removeAttribute("hidden");

         }

     },

     /** 

     * Retrieve the moz-icon for the app

     */ 

     getFileIconURL: function getFileIconURL(file) {

       var ios = Components.classes["@mozilla.org/network/io-service;1"].

                 getService(Components.interfaces.nsIIOService);

       if (!ios) return "";

       const nsIFileProtocolHandler =

         Components.interfaces.nsIFileProtocolHandler;

       var fph = ios.getProtocolHandler("file")

                 .QueryInterface(nsIFileProtocolHandler);

       if (!fph) return "";

       var urlSpec = fph.getURLSpecFromFile(file);

       return "moz-icon://" + urlSpec + "?size=32";

     },

     /** 

     * Retrieve the pretty description from the file

     */ 

     getFileDisplayName: function getFileDisplayName(file) {

 #ifdef XP_WIN

       if (file instanceof Components.interfaces.nsILocalFileWin) {

         try {

           return file.getVersionInfoField("FileDescription");

         } catch (e) {}

       }

 #endif

 #ifdef XP_MACOSX

       if (file instanceof Components.interfaces.nsILocalFileMac) {

         try {

           return file.bundleDisplayName;

         } catch (e) {}

       }

 #endif

       return file.leafName;

     },

     /**

     * Double click accepts an app

     */

     appDoubleClick: function appDoubleClick() {

       var list = document.getElementById("app-picker-listbox");

       var selItem = list.selectedItem;

       if (!selItem) {

           this._incomingParams.handlerApp = null;

           return true;

       }

       this._incomingParams.handlerApp = selItem.handlerApp;

       window.close();

       return true;

     },

     appPickerOK: function appPickerOK() {

       if (this._incomingParams.handlerApp) return true;

       var list = document.getElementById("app-picker-listbox");

       var selItem = list.selectedItem;

       if (!selItem) {

         this._incomingParams.handlerApp = null;

         return true;

       }

       this._incomingParams.handlerApp = selItem.handlerApp;

       return true;

     },

     appPickerCancel: function appPickerCancel() {

       this._incomingParams.handlerApp = null;

       return true;

     },

     /**

     * User browse for an app.

     */

     appPickerBrowse: function appPickerBrowse() {

       var nsIFilePicker = Components.interfaces.nsIFilePicker;

       var fp = Components.classes["@mozilla.org/filepicker;1"].

                createInstance(nsIFilePicker);

       fp.init(window, this._incomingParams.title, nsIFilePicker.modeOpen);

       fp.appendFilters(nsIFilePicker.filterApps);

       var fileLoc = Components.classes["@mozilla.org/file/directory_service;1"]

                             .getService(Components.interfaces.nsIProperties);

       var startLocation;

 #ifdef XP_WIN

     startLocation = "ProgF"; // Program Files

 #else

 #ifdef XP_MACOSX

     startLocation = "LocApp"; // Local Applications

 #else

     startLocation = "Home";

 #endif

 #endif

       fp.displayDirectory = 

         fileLoc.get(startLocation, Components.interfaces.nsILocalFile);

       if (fp.show() == nsIFilePicker.returnOK && fp.file) {

           var localHandlerApp = 

             Components.classes["@mozilla.org/uriloader/local-handler-app;1"].

             createInstance(Components.interfaces.nsILocalHandlerApp);

           localHandlerApp.executable = fp.file;

           this._incomingParams.handlerApp = localHandlerApp;

           window.close();

       }

       return true;

     }

 }

 // Global object

 var g_dialog = new AppPicker();