The Tor Browser / file revision

 /* 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/. */

 "use strict";

 Cu.import("resource://gre/modules/Services.jsm");

 var StartUI = {

   get startUI() { return document.getElementById("start-container"); },

   get chromeWin() {

     // XXX Not e10s friendly. We use this in a few places.

     return Services.wm.getMostRecentWindow('navigator:browser');

   },

   init: function init() {

     this.startUI.addEventListener("click", this, false);

     this.startUI.addEventListener("MozMousePixelScroll", this, false);

     // Update the input type on our local broadcaster

     document.getElementById("bcast_preciseInput").setAttribute("input",

       this.chromeWin.InputSourceHelper.isPrecise ? "precise" : "imprecise");

     let firstRunCount = Services.prefs.getIntPref("browser.firstrun.count");

     if (firstRunCount > 0) {

       document.loadOverlay("chrome://browser/content/FirstRunOverlay.xul", null);

       Services.prefs.setIntPref("browser.firstrun.count", firstRunCount - 1);

     }

     this._adjustDOMforViewState(this.chromeWin.ContentAreaObserver.viewstate);

     TopSitesStartView.init();

     BookmarksStartView.init();

     HistoryStartView.init();

     RemoteTabsStartView.init();

     this.chromeWin.addEventListener("MozPrecisePointer", this, true);

     this.chromeWin.addEventListener("MozImprecisePointer", this, true);

     this.chromeWin.addEventListener("MozAfterPaint", this, true);

     this.chromeWin.Elements.panelUI.addEventListener("ToolPanelHidden", this, false);

     Services.obs.addObserver(this, "metro_viewstate_changed", false);

   },

   uninit: function() {

     if (TopSitesStartView)

       TopSitesStartView.uninit();

     if (BookmarksStartView)

       BookmarksStartView.uninit();

     if (HistoryStartView)

       HistoryStartView.uninit();

     if (RemoteTabsStartView)

       RemoteTabsStartView.uninit();

     if (this.chromeWin) {

       this.chromeWin.removeEventListener("MozPrecisePointer", this, true);

       this.chromeWin.removeEventListener("MozImprecisePointer", this, true);

     }

     Services.obs.removeObserver(this, "metro_viewstate_changed");

   },

   goToURI: function (aURI) {

     this.chromeWin.BrowserUI.goToURI(aURI);

   },

   onClick: function onClick(aEvent) {

     // If someone clicks / taps in empty grid space, take away

     // focus from the nav bar edit so the soft keyboard will hide.

     this.chromeWin.BrowserUI.blurNavBar();

     if (aEvent.button == 0) {

       this.chromeWin.ContextUI.dismissTabs();

     }

   },

   onNarrowTitleClick: function onNarrowTitleClick(sectionId) {

     let section = document.getElementById(sectionId);

     if (section.hasAttribute("expanded"))

       return;

     for (let expandedSection of this.startUI.querySelectorAll(".meta-section[expanded]"))

       expandedSection.removeAttribute("expanded")

     section.setAttribute("expanded", "true");

   },

   _adjustDOMforViewState: function(aState) {

     document.getElementById("bcast_windowState").setAttribute("viewstate", aState);

   },

   handleEvent: function handleEvent(aEvent) {

     switch (aEvent.type) {

       case "MozPrecisePointer":

         document.getElementById("bcast_preciseInput").setAttribute("input", "precise");

         break;

       case "MozImprecisePointer":

         document.getElementById("bcast_preciseInput").setAttribute("input", "imprecise");

         break;

       case "click":

         this.onClick(aEvent);

         break;

       case "MozMousePixelScroll":

         let viewstate = this.startUI.getAttribute("viewstate");

         if (viewstate === "snapped" || viewstate === "portrait") {

           window.scrollBy(0, aEvent.detail);

         } else {

           window.scrollBy(aEvent.detail, 0);

         }

         aEvent.preventDefault();

         aEvent.stopPropagation();

         break;

       case "ToolPanelHidden":

         // After opening panel UI (console) set disableZoom again.

         this.chromeWin.addEventListener("MozAfterPaint", this, true);

         break;

       case "MozAfterPaint":

         this._disableZoom();

         this.chromeWin.removeEventListener("MozAfterPaint", this, true);

         break;

     }

   },

   observe: function (aSubject, aTopic, aData) {

     switch (aTopic) {

       case "metro_viewstate_changed":

         this._adjustDOMforViewState(aData);

         break;

     }

   },

   _disableZoom: function() {

     let utils = Util.getWindowUtils(window);

     let viewId;

     try {

       viewId = utils.getViewId(document.documentElement);

     } catch(e) {

       return;

     }

     let presShellId = {};

     utils.getPresShellId(presShellId);

     let notificationData = [

       presShellId.value,

       viewId].join(",");

     Services.obs.notifyObservers(null, "apzc-disable-zoom", notificationData);

   }

 };