michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /**
michael@0:  * This dialog builds its content based on arguments passed into it.
michael@0:  * window.arguments[0]:
michael@0:  *   The title of the dialog.
michael@0:  * window.arguments[1]:
michael@0:  *   The url of the image that appears to the left of the description text
michael@0:  * window.arguments[2]:
michael@0:  *   The text of the description that will appear above the choices the user
michael@0:  *   can choose from.
michael@0:  * window.arguments[3]:
michael@0:  *   The text of the label directly above the choices the user can choose from.
michael@0:  * window.arguments[4]:
michael@0:  *   This is the text to be placed in the label for the checkbox.  If no text is
michael@0:  *   passed (ie, it's an empty string), the checkbox will be hidden.
michael@0:  * window.arguments[5]:
michael@0:  *   The accesskey for the checkbox
michael@0:  * window.arguments[6]:
michael@0:  *   This is the text that is displayed below the checkbox when it is checked.
michael@0:  * window.arguments[7]:
michael@0:  *   This is the nsIHandlerInfo that gives us all our precious information.
michael@0:  * window.arguments[8]:
michael@0:  *   This is the nsIURI that we are being brought up for in the first place.
michael@0:  * window.arguments[9]:
michael@0:  *   The nsIInterfaceRequestor of the parent window; may be null
michael@0:  */
michael@0: 
michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const Cr = Components.results;
michael@0: 
michael@0: var dialog = {
michael@0:   //////////////////////////////////////////////////////////////////////////////
michael@0:   //// Member Variables
michael@0: 
michael@0:   _handlerInfo: null,
michael@0:   _URI: null,
michael@0:   _itemChoose: null,
michael@0:   _okButton: null,
michael@0:   _windowCtxt: null,
michael@0:   
michael@0:   //////////////////////////////////////////////////////////////////////////////
michael@0:   //// Methods
michael@0: 
michael@0:  /**
michael@0:   * This function initializes the content of the dialog.
michael@0:   */
michael@0:   initialize: function initialize()
michael@0:   {
michael@0:     this._handlerInfo = window.arguments[7].QueryInterface(Ci.nsIHandlerInfo);
michael@0:     this._URI         = window.arguments[8].QueryInterface(Ci.nsIURI);
michael@0:     this._windowCtxt  = window.arguments[9];
michael@0:     if (this._windowCtxt)
michael@0:       this._windowCtxt.QueryInterface(Ci.nsIInterfaceRequestor);
michael@0:     this._itemChoose  = document.getElementById("item-choose");
michael@0:     this._okButton    = document.documentElement.getButton("accept");
michael@0: 
michael@0:     this.updateOKButton();
michael@0: 
michael@0:     var description = {
michael@0:       image: document.getElementById("description-image"),
michael@0:       text:  document.getElementById("description-text")
michael@0:     };
michael@0:     var options = document.getElementById("item-action-text");
michael@0:     var checkbox = {
michael@0:       desc: document.getElementById("remember"),
michael@0:       text:  document.getElementById("remember-text")
michael@0:     };
michael@0: 
michael@0:     // Setting values
michael@0:     document.title               = window.arguments[0];
michael@0:     description.image.src        = window.arguments[1];
michael@0:     description.text.textContent = window.arguments[2];
michael@0:     options.value                = window.arguments[3];
michael@0:     checkbox.desc.label          = window.arguments[4];
michael@0:     checkbox.desc.accessKey      = window.arguments[5];
michael@0:     checkbox.text.textContent    = window.arguments[6];
michael@0: 
michael@0:     // Hide stuff that needs to be hidden
michael@0:     if (!checkbox.desc.label)
michael@0:       checkbox.desc.hidden = true;
michael@0: 
michael@0:     // UI is ready, lets populate our list
michael@0:     this.populateList();
michael@0:   },
michael@0: 
michael@0:  /**
michael@0:   * Populates the list that a user can choose from.
michael@0:   */
michael@0:   populateList: function populateList()
michael@0:   {
michael@0:     var items = document.getElementById("items");
michael@0:     var possibleHandlers = this._handlerInfo.possibleApplicationHandlers;
michael@0:     var preferredHandler = this._handlerInfo.preferredApplicationHandler;
michael@0:     var ios = Cc["@mozilla.org/network/io-service;1"].
michael@0:               getService(Ci.nsIIOService);
michael@0:     for (let i = possibleHandlers.length - 1; i >= 0; --i) {
michael@0:       let app = possibleHandlers.queryElementAt(i, Ci.nsIHandlerApp);
michael@0:       let elm = document.createElement("richlistitem");
michael@0:       elm.setAttribute("type", "handler");
michael@0:       elm.setAttribute("name", app.name);
michael@0:       elm.obj = app;
michael@0: 
michael@0:       if (app instanceof Ci.nsILocalHandlerApp) {
michael@0:         // See if we have an nsILocalHandlerApp and set the icon
michael@0:         let uri = ios.newFileURI(app.executable);
michael@0:         elm.setAttribute("image", "moz-icon://" + uri.spec + "?size=32");
michael@0:       }
michael@0:       else if (app instanceof Ci.nsIWebHandlerApp) {
michael@0:         let uri = ios.newURI(app.uriTemplate, null, null);
michael@0:         if (/^https?/.test(uri.scheme)) {
michael@0:           // Unfortunately we can't use the favicon service to get the favicon,
michael@0:           // because the service looks for a record with the exact URL we give
michael@0:           // it, and users won't have such records for URLs they don't visit,
michael@0:           // and users won't visit the handler's URL template, they'll only
michael@0:           // visit URLs derived from that template (i.e. with %s in the template
michael@0:           // replaced by the URL of the content being handled).
michael@0:           elm.setAttribute("image", uri.prePath + "/favicon.ico");
michael@0:         }
michael@0:         elm.setAttribute("description", uri.prePath);
michael@0:       }
michael@0:       else if (app instanceof Ci.nsIDBusHandlerApp){
michael@0: 	  elm.setAttribute("description", app.method);  
michael@0:       }
michael@0:       else
michael@0:         throw "unknown handler type";
michael@0: 
michael@0:       items.insertBefore(elm, this._itemChoose);
michael@0:       if (preferredHandler && app == preferredHandler)
michael@0:         this.selectedItem = elm;
michael@0:     }
michael@0: 
michael@0:     if (this._handlerInfo.hasDefaultHandler) {
michael@0:       let elm = document.createElement("richlistitem");
michael@0:       elm.setAttribute("type", "handler");
michael@0:       elm.id = "os-default-handler";
michael@0:       elm.setAttribute("name", this._handlerInfo.defaultDescription);
michael@0:     
michael@0:       items.insertBefore(elm, items.firstChild);
michael@0:       if (this._handlerInfo.preferredAction == 
michael@0:           Ci.nsIHandlerInfo.useSystemDefault) 
michael@0:           this.selectedItem = elm;
michael@0:     }
michael@0:     items.ensureSelectedElementIsVisible();
michael@0:   },
michael@0:   
michael@0:  /**
michael@0:   * Brings up a filepicker and allows a user to choose an application.
michael@0:   */
michael@0:   chooseApplication: function chooseApplication()
michael@0:   {
michael@0:     var bundle = document.getElementById("base-strings");
michael@0:     var title = bundle.getString("choose.application.title");
michael@0: 
michael@0:     var fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
michael@0:     fp.init(window, title, Ci.nsIFilePicker.modeOpen);
michael@0:     fp.appendFilters(Ci.nsIFilePicker.filterApps);
michael@0: 
michael@0:     if (fp.show() == Ci.nsIFilePicker.returnOK && fp.file) {
michael@0:       let uri = Cc["@mozilla.org/network/util;1"].
michael@0:                 getService(Ci.nsIIOService).
michael@0:                 newFileURI(fp.file);
michael@0: 
michael@0:       let handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"].
michael@0:                        createInstance(Ci.nsILocalHandlerApp);
michael@0:       handlerApp.executable = fp.file;
michael@0: 
michael@0:       // if this application is already in the list, select it and don't add it again
michael@0:       let parent = document.getElementById("items");
michael@0:       for (let i = 0; i < parent.childNodes.length; ++i) {
michael@0:         let elm = parent.childNodes[i];
michael@0:         if (elm.obj instanceof Ci.nsILocalHandlerApp && elm.obj.equals(handlerApp)) {
michael@0:           parent.selectedItem = elm;
michael@0:           parent.ensureSelectedElementIsVisible();
michael@0:           return;
michael@0:         }
michael@0:       }
michael@0: 
michael@0:       let elm = document.createElement("richlistitem");
michael@0:       elm.setAttribute("type", "handler");
michael@0:       elm.setAttribute("name", fp.file.leafName);
michael@0:       elm.setAttribute("image", "moz-icon://" + uri.spec + "?size=32");
michael@0:       elm.obj = handlerApp;
michael@0: 
michael@0:       parent.selectedItem = parent.insertBefore(elm, parent.firstChild);
michael@0:       parent.ensureSelectedElementIsVisible();
michael@0:     }
michael@0:   },
michael@0: 
michael@0:  /**
michael@0:   * Function called when the OK button is pressed.
michael@0:   */
michael@0:   onAccept: function onAccept()
michael@0:   {
michael@0:     var checkbox = document.getElementById("remember");
michael@0:     if (!checkbox.hidden) {
michael@0:       // We need to make sure that the default is properly set now
michael@0:       if (this.selectedItem.obj) {
michael@0:         // default OS handler doesn't have this property
michael@0:         this._handlerInfo.preferredAction = Ci.nsIHandlerInfo.useHelperApp;
michael@0:         this._handlerInfo.preferredApplicationHandler = this.selectedItem.obj;
michael@0:       }
michael@0:       else
michael@0:         this._handlerInfo.preferredAction = Ci.nsIHandlerInfo.useSystemDefault;
michael@0:     }
michael@0:     this._handlerInfo.alwaysAskBeforeHandling = !checkbox.checked;
michael@0: 
michael@0:     var hs = Cc["@mozilla.org/uriloader/handler-service;1"].
michael@0:              getService(Ci.nsIHandlerService);
michael@0:     hs.store(this._handlerInfo);
michael@0: 
michael@0:     this._handlerInfo.launchWithURI(this._URI, this._windowCtxt);
michael@0: 
michael@0:     return true;
michael@0:   },
michael@0: 
michael@0:  /**
michael@0:   * Determines if the OK button should be disabled or not
michael@0:   */
michael@0:   updateOKButton: function updateOKButton()
michael@0:   {
michael@0:     this._okButton.disabled = this._itemChoose.selected;
michael@0:   },
michael@0: 
michael@0:  /**
michael@0:   * Updates the UI based on the checkbox being checked or not.
michael@0:   */
michael@0:   onCheck: function onCheck()
michael@0:   {
michael@0:     if (document.getElementById("remember").checked)
michael@0:       document.getElementById("remember-text").setAttribute("visible", "true");
michael@0:     else
michael@0:       document.getElementById("remember-text").removeAttribute("visible");
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Function called when the user double clicks on an item of the list
michael@0:    */
michael@0:   onDblClick: function onDblClick()
michael@0:   {
michael@0:     if (this.selectedItem == this._itemChoose)
michael@0:       this.chooseApplication();
michael@0:     else
michael@0:       document.documentElement.acceptDialog();
michael@0:   },
michael@0: 
michael@0:   /////////////////////////////////////////////////////////////////////////////
michael@0:   //// Getters / Setters
michael@0: 
michael@0:  /**
michael@0:   * Returns/sets the selected element in the richlistbox
michael@0:   */
michael@0:   get selectedItem()
michael@0:   {
michael@0:     return document.getElementById("items").selectedItem;
michael@0:   },
michael@0:   set selectedItem(aItem)
michael@0:   {
michael@0:     return document.getElementById("items").selectedItem = aItem;
michael@0:   }
michael@0:   
michael@0: };