The Tor Browser: browser/components/customizableui/src/CustomizableWidgets.jsm@8bccb770b82d (annotated)

browser/components/customizableui/src/CustomizableWidgets.jsm@8bccb770b82d (annotated)

browser/components/customizableui/src/CustomizableWidgets.jsm

Wed, 31 Dec 2014 13:27:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 13:27:57 +0100
branch: TOR_BUG_3246
changeset 6: 8bccb770b82d
permissions: -rw-r--r--

Ignore runtime configuration files generated during quality assurance.

 /* 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";
 const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 this.EXPORTED_SYMBOLS = ["CustomizableWidgets"];
 Cu.import("resource:///modules/CustomizableUI.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
   "resource://gre/modules/PlacesUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesUIUtils",
   "resource:///modules/PlacesUIUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "RecentlyClosedTabsAndWindowsMenuUtils",
   "resource:///modules/sessionstore/RecentlyClosedTabsAndWindowsMenuUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "ShortcutUtils",
   "resource://gre/modules/ShortcutUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "CharsetMenu",
   "resource://gre/modules/CharsetMenu.jsm");
 XPCOMUtils.defineLazyServiceGetter(this, "CharsetManager",
                                    "@mozilla.org/charset-converter-manager;1",
                                    "nsICharsetConverterManager");
 XPCOMUtils.defineLazyGetter(this, "CharsetBundle", function() {
   const kCharsetBundle = "chrome://global/locale/charsetMenu.properties";
   return Services.strings.createBundle(kCharsetBundle);
 });
 XPCOMUtils.defineLazyGetter(this, "BrandBundle", function() {
   const kBrandBundle = "chrome://branding/locale/brand.properties";
   return Services.strings.createBundle(kBrandBundle);
 });
 const kNSXUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
 const kPrefCustomizationDebug = "browser.uiCustomization.debug";
 const kWidePanelItemClass = "panel-wide-item";
 let gModuleName = "[CustomizableWidgets]";
 #include logging.js
 function setAttributes(aNode, aAttrs) {
   let doc = aNode.ownerDocument;
   for (let [name, value] of Iterator(aAttrs)) {
     if (!value) {
       if (aNode.hasAttribute(name))
         aNode.removeAttribute(name);
     } else {
       if (name == "shortcutId") {
         continue;
       }
       if (name == "label" || name == "tooltiptext") {
         let stringId = (typeof value == "string") ? value : name;
         let additionalArgs = [];
         if (aAttrs.shortcutId) {
           let shortcut = doc.getElementById(aAttrs.shortcutId);
           if (doc) {
             additionalArgs.push(ShortcutUtils.prettifyShortcut(shortcut));
           }
         }
         value = CustomizableUI.getLocalizedProperty({id: aAttrs.id}, stringId, additionalArgs);
       }
       aNode.setAttribute(name, value);
     }
   }
 }
 function updateCombinedWidgetStyle(aNode, aArea, aModifyCloseMenu) {
   let inPanel = (aArea == CustomizableUI.AREA_PANEL);
   let cls = inPanel ? "panel-combined-button" : "toolbarbutton-1 toolbarbutton-combined";
   let attrs = {class: cls};
   if (aModifyCloseMenu) {
     attrs.closemenu = inPanel ? "none" : null;
   }
   attrs["cui-areatype"] = aArea ? CustomizableUI.getAreaType(aArea) : null;
   for (let i = 0, l = aNode.childNodes.length; i < l; ++i) {
     if (aNode.childNodes[i].localName == "separator")
       continue;
     setAttributes(aNode.childNodes[i], attrs);
   }
 }
 function addShortcut(aNode, aDocument, aItem) {
   let shortcutId = aNode.getAttribute("key");
   if (!shortcutId) {
     return;
   }
   let shortcut = aDocument.getElementById(shortcutId);
   if (!shortcut) {
     return;
   }
   aItem.setAttribute("shortcut", ShortcutUtils.prettifyShortcut(shortcut));
 }
 function fillSubviewFromMenuItems(aMenuItems, aSubview) {
   let attrs = ["oncommand", "onclick", "label", "key", "disabled",
                "command", "observes", "hidden", "class", "origin",
                "image", "checked"];
   let doc = aSubview.ownerDocument;
   let fragment = doc.createDocumentFragment();
   for (let menuChild of aMenuItems) {
     if (menuChild.hidden)
       continue;
     let subviewItem;
     if (menuChild.localName == "menuseparator") {
       // Don't insert duplicate or leading separators. This can happen if there are
       // menus (which we don't copy) above the separator.
       if (!fragment.lastChild || fragment.lastChild.localName == "menuseparator") {
         continue;
       }
       subviewItem = doc.createElementNS(kNSXUL, "menuseparator");
     } else if (menuChild.localName == "menuitem") {
       subviewItem = doc.createElementNS(kNSXUL, "toolbarbutton");
       addShortcut(menuChild, doc, subviewItem);
       let item = menuChild;
       if (!item.hasAttribute("onclick")) {
         subviewItem.addEventListener("click", event => {
           let newEvent = new doc.defaultView.MouseEvent(event.type, event);
           item.dispatchEvent(newEvent);
         });
       }
       if (!item.hasAttribute("oncommand")) {
         subviewItem.addEventListener("command", event => {
           let newEvent = doc.createEvent("XULCommandEvent");
           newEvent.initCommandEvent(
             event.type, event.bubbles, event.cancelable, event.view,
             event.detail, event.ctrlKey, event.altKey, event.shiftKey,
             event.metaKey, event.sourceEvent);
           item.dispatchEvent(newEvent);
         });
       }
     } else {
       continue;
     }
     for (let attr of attrs) {
       let attrVal = menuChild.getAttribute(attr);
       if (attrVal)
         subviewItem.setAttribute(attr, attrVal);
     }
     // We do this after so the .subviewbutton class doesn't get overriden.
     if (menuChild.localName == "menuitem") {
       subviewItem.classList.add("subviewbutton");
     }
     fragment.appendChild(subviewItem);
   }
   aSubview.appendChild(fragment);
 }
 function clearSubview(aSubview) {
   let parent = aSubview.parentNode;
   // We'll take the container out of the document before cleaning it out
   // to avoid reflowing each time we remove something.
   parent.removeChild(aSubview);
   while (aSubview.firstChild) {
     aSubview.firstChild.remove();
   }
   parent.appendChild(aSubview);
 }
 const CustomizableWidgets = [{
     id: "history-panelmenu",
     type: "view",
     viewId: "PanelUI-history",
     shortcutId: "key_gotoHistory",
     tooltiptext: "history-panelmenu.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     onViewShowing: function(aEvent) {
       // Populate our list of history
       const kMaxResults = 15;
       let doc = aEvent.detail.ownerDocument;
       let options = PlacesUtils.history.getNewQueryOptions();
       options.excludeQueries = true;
       options.includeHidden = false;
       options.resultType = options.RESULTS_AS_URI;
       options.queryType = options.QUERY_TYPE_HISTORY;
       options.sortingMode = options.SORT_BY_DATE_DESCENDING;
       options.maxResults = kMaxResults;
       let query = PlacesUtils.history.getNewQuery();
       let items = doc.getElementById("PanelUI-historyItems");
       // Clear previous history items.
       while (items.firstChild) {
         items.removeChild(items.firstChild);
       }
       PlacesUtils.history.QueryInterface(Ci.nsPIPlacesDatabase)
                          .asyncExecuteLegacyQueries([query], 1, options, {
         handleResult: function (aResultSet) {
           let onHistoryVisit = function (aUri, aEvent, aItem) {
             doc.defaultView.openUILink(aUri, aEvent);
             CustomizableUI.hidePanelForNode(aItem);
           };
           let fragment = doc.createDocumentFragment();
           for (let row, i = 0; (row = aResultSet.getNextRow()); i++) {
             try {
               let uri = row.getResultByIndex(1);
               let title = row.getResultByIndex(2);
               let icon = row.getResultByIndex(6);
               let item = doc.createElementNS(kNSXUL, "toolbarbutton");
               item.setAttribute("label", title || uri);
               item.setAttribute("targetURI", uri);
               item.setAttribute("class", "subviewbutton");
               item.addEventListener("click", function (aEvent) {
                 onHistoryVisit(uri, aEvent, item);
               });
               if (icon)
                 item.setAttribute("image", "moz-anno:favicon:" + icon);
               fragment.appendChild(item);
             } catch (e) {
               ERROR("Error while showing history subview: " + e);
             }
           }
           items.appendChild(fragment);
         },
         handleError: function (aError) {
           LOG("History view tried to show but had an error: " + aError);
         },
         handleCompletion: function (aReason) {
           LOG("History view is being shown!");
         },
       });
       let recentlyClosedTabs = doc.getElementById("PanelUI-recentlyClosedTabs");
       while (recentlyClosedTabs.firstChild) {
         recentlyClosedTabs.removeChild(recentlyClosedTabs.firstChild);
       }
       let recentlyClosedWindows = doc.getElementById("PanelUI-recentlyClosedWindows");
       while (recentlyClosedWindows.firstChild) {
         recentlyClosedWindows.removeChild(recentlyClosedWindows.firstChild);
       }
 #ifdef MOZ_SERVICES_SYNC
       let tabsFromOtherComputers = doc.getElementById("sync-tabs-menuitem2");
       if (PlacesUIUtils.shouldShowTabsFromOtherComputersMenuitem()) {
         tabsFromOtherComputers.removeAttribute("hidden");
       } else {
         tabsFromOtherComputers.setAttribute("hidden", true);
       }
       if (PlacesUIUtils.shouldEnableTabsFromOtherComputersMenuitem()) {
         tabsFromOtherComputers.removeAttribute("disabled");
       } else {
         tabsFromOtherComputers.setAttribute("disabled", true);
       }
 #endif
       let utils = RecentlyClosedTabsAndWindowsMenuUtils;
       let tabsFragment = utils.getTabsFragment(doc.defaultView, "toolbarbutton", true,
                                                "menuRestoreAllTabsSubview.label");
       let separator = doc.getElementById("PanelUI-recentlyClosedTabs-separator");
       let elementCount = tabsFragment.childElementCount;
       separator.hidden = !elementCount;
       while (--elementCount >= 0) {
         tabsFragment.children[elementCount].classList.add("subviewbutton");
       }
       recentlyClosedTabs.appendChild(tabsFragment);
       let windowsFragment = utils.getWindowsFragment(doc.defaultView, "toolbarbutton", true,
                                                      "menuRestoreAllWindowsSubview.label");
       separator = doc.getElementById("PanelUI-recentlyClosedWindows-separator");
       elementCount = windowsFragment.childElementCount;
       separator.hidden = !elementCount;
       while (--elementCount >= 0) {
         windowsFragment.children[elementCount].classList.add("subviewbutton");
       }
       recentlyClosedWindows.appendChild(windowsFragment);
     },
     onCreated: function(aNode) {
       // Middle clicking recently closed items won't close the panel - cope:
       let onRecentlyClosedClick = function(aEvent) {
         if (aEvent.button == 1) {
           CustomizableUI.hidePanelForNode(this);
         }
       };
       let doc = aNode.ownerDocument;
       let recentlyClosedTabs = doc.getElementById("PanelUI-recentlyClosedTabs");
       let recentlyClosedWindows = doc.getElementById("PanelUI-recentlyClosedWindows");
       recentlyClosedTabs.addEventListener("click", onRecentlyClosedClick);
       recentlyClosedWindows.addEventListener("click", onRecentlyClosedClick);
     },
     onViewHiding: function(aEvent) {
       LOG("History view is being hidden!");
     }
   }, {
     id: "privatebrowsing-button",
     shortcutId: "key_privatebrowsing",
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: function(e) {
       if (e.target && e.target.ownerDocument && e.target.ownerDocument.defaultView) {
         let win = e.target.ownerDocument.defaultView;
         if (typeof win.OpenBrowserWindow == "function") {
           win.OpenBrowserWindow({private: true});
         }
       }
     }
   }, {
     id: "save-page-button",
     shortcutId: "key_savePage",
     tooltiptext: "save-page-button.tooltiptext3",
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: function(aEvent) {
       let win = aEvent.target &&
                 aEvent.target.ownerDocument &&
                 aEvent.target.ownerDocument.defaultView;
       if (win && typeof win.saveDocument == "function") {
         win.saveDocument(win.content.document);
       }
     }
   }, {
     id: "find-button",
     shortcutId: "key_find",
     tooltiptext: "find-button.tooltiptext3",
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: function(aEvent) {
       let win = aEvent.target &&
                 aEvent.target.ownerDocument &&
                 aEvent.target.ownerDocument.defaultView;
       if (win && win.gFindBar) {
         win.gFindBar.onFindCommand();
       }
     }
   }, {
     id: "open-file-button",
     shortcutId: "openFileKb",
     tooltiptext: "open-file-button.tooltiptext3",
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: function(aEvent) {
       let win = aEvent.target
                 && aEvent.target.ownerDocument
                 && aEvent.target.ownerDocument.defaultView;
       if (win && typeof win.BrowserOpenFileWindow == "function") {
         win.BrowserOpenFileWindow();
       }
     }
   }, {
     id: "developer-button",
     type: "view",
     viewId: "PanelUI-developer",
     shortcutId: "key_devToolboxMenuItem",
     tooltiptext: "developer-button.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     onViewShowing: function(aEvent) {
       // Populate the subview with whatever menuitems are in the developer
       // menu. We skip menu elements, because the menu panel has no way
       // of dealing with those right now.
       let doc = aEvent.target.ownerDocument;
       let win = doc.defaultView;
       let menu = doc.getElementById("menuWebDeveloperPopup");
       let itemsToDisplay = [...menu.children];
       // Hardcode the addition of the "work offline" menuitem at the bottom:
       itemsToDisplay.push({localName: "menuseparator", getAttribute: () => {}});
       itemsToDisplay.push(doc.getElementById("goOfflineMenuitem"));
       fillSubviewFromMenuItems(itemsToDisplay, doc.getElementById("PanelUI-developerItems"));
     },
     onViewHiding: function(aEvent) {
       let doc = aEvent.target.ownerDocument;
       clearSubview(doc.getElementById("PanelUI-developerItems"));
     }
   }, {
     id: "sidebar-button",
     type: "view",
     viewId: "PanelUI-sidebar",
     tooltiptext: "sidebar-button.tooltiptext2",
     onViewShowing: function(aEvent) {
       // Largely duplicated from the developer-button above with a couple minor
       // alterations.
       // Populate the subview with whatever menuitems are in the
       // sidebar menu. We skip menu elements, because the menu panel has no way
       // of dealing with those right now.
       let doc = aEvent.target.ownerDocument;
       let win = doc.defaultView;
       let menu = doc.getElementById("viewSidebarMenu");
       // First clear any existing menuitems then populate. Social sidebar
       // options may not have been added yet, so we do that here. Add it to the
       // standard menu first, then copy all sidebar options to the panel.
       win.SocialSidebar.clearProviderMenus();
       let providerMenuSeps = menu.getElementsByClassName("social-provider-menu");
       if (providerMenuSeps.length > 0)
         win.SocialSidebar.populateProviderMenu(providerMenuSeps[0]);
       fillSubviewFromMenuItems([...menu.children], doc.getElementById("PanelUI-sidebarItems"));
     },
     onViewHiding: function(aEvent) {
       let doc = aEvent.target.ownerDocument;
       clearSubview(doc.getElementById("PanelUI-sidebarItems"));
     }
   }, {
     id: "add-ons-button",
     shortcutId: "key_openAddons",
     tooltiptext: "add-ons-button.tooltiptext3",
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: function(aEvent) {
       let win = aEvent.target &&
                 aEvent.target.ownerDocument &&
                 aEvent.target.ownerDocument.defaultView;
       if (win && typeof win.BrowserOpenAddonsMgr == "function") {
         win.BrowserOpenAddonsMgr();
       }
     }
   }, {
     id: "preferences-button",
     defaultArea: CustomizableUI.AREA_PANEL,
 #ifdef XP_WIN
     label: "preferences-button.labelWin",
     tooltiptext: "preferences-button.tooltipWin2",
 #else
 #ifdef XP_MACOSX
     tooltiptext: "preferences-button.tooltiptext.withshortcut",
     shortcutId: "key_preferencesCmdMac",
 #else
     tooltiptext: "preferences-button.tooltiptext2",
 #endif
 #endif
     onCommand: function(aEvent) {
       let win = aEvent.target &&
                 aEvent.target.ownerDocument &&
                 aEvent.target.ownerDocument.defaultView;
       if (win && typeof win.openPreferences == "function") {
         win.openPreferences();
       }
     }
   }, {
     id: "zoom-controls",
     type: "custom",
     tooltiptext: "zoom-controls.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     onBuild: function(aDocument) {
       const kPanelId = "PanelUI-popup";
       let areaType = CustomizableUI.getAreaType(this.currentArea);
       let inPanel = areaType == CustomizableUI.TYPE_MENU_PANEL;
       let inToolbar = areaType == CustomizableUI.TYPE_TOOLBAR;
       let buttons = [{
         id: "zoom-out-button",
         command: "cmd_fullZoomReduce",
         label: true,
         tooltiptext: "tooltiptext2",
         shortcutId: "key_fullZoomReduce",
       }, {
         id: "zoom-reset-button",
         command: "cmd_fullZoomReset",
         tooltiptext: "tooltiptext2",
         shortcutId: "key_fullZoomReset",
       }, {
         id: "zoom-in-button",
         command: "cmd_fullZoomEnlarge",
         label: true,
         tooltiptext: "tooltiptext2",
         shortcutId: "key_fullZoomEnlarge",
       }];
       let node = aDocument.createElementNS(kNSXUL, "toolbaritem");
       node.setAttribute("id", "zoom-controls");
       node.setAttribute("label", CustomizableUI.getLocalizedProperty(this, "label"));
       node.setAttribute("title", CustomizableUI.getLocalizedProperty(this, "tooltiptext"));
       // Set this as an attribute in addition to the property to make sure we can style correctly.
       node.setAttribute("removable", "true");
       node.classList.add("chromeclass-toolbar-additional");
       node.classList.add("toolbaritem-combined-buttons");
       node.classList.add(kWidePanelItemClass);
       buttons.forEach(function(aButton, aIndex) {
         if (aIndex != 0)
           node.appendChild(aDocument.createElementNS(kNSXUL, "separator"));
         let btnNode = aDocument.createElementNS(kNSXUL, "toolbarbutton");
         setAttributes(btnNode, aButton);
         node.appendChild(btnNode);
       });
       // The middle node is the 'Reset Zoom' button.
       let zoomResetButton = node.childNodes[2];
       let window = aDocument.defaultView;
       function updateZoomResetButton() {
         let updateDisplay = true;
         // Label should always show 100% in customize mode, so don't update:
         if (aDocument.documentElement.hasAttribute("customizing")) {
           updateDisplay = false;
         }
         //XXXgijs in some tests we get called very early, and there's no docShell on the
         // tabbrowser. This breaks the zoom toolkit code (see bug 897410). Don't let that happen:
         let zoomFactor = 100;
         try {
           zoomFactor = Math.round(window.ZoomManager.zoom * 100);
         } catch (e) {}
         zoomResetButton.setAttribute("label", CustomizableUI.getLocalizedProperty(
           buttons[1], "label", [updateDisplay ? zoomFactor : 100]
         ));
       };
       // Register ourselves with the service so we know when the zoom prefs change.
       Services.obs.addObserver(updateZoomResetButton, "browser-fullZoom:zoomChange", false);
       Services.obs.addObserver(updateZoomResetButton, "browser-fullZoom:zoomReset", false);
       Services.obs.addObserver(updateZoomResetButton, "browser-fullZoom:location-change", false);
       if (inPanel) {
         let panel = aDocument.getElementById(kPanelId);
         panel.addEventListener("popupshowing", updateZoomResetButton);
       } else {
         if (inToolbar) {
           let container = window.gBrowser.tabContainer;
           container.addEventListener("TabSelect", updateZoomResetButton);
         }
         updateZoomResetButton();
       }
       updateCombinedWidgetStyle(node, this.currentArea, true);
       let listener = {
         onWidgetAdded: function(aWidgetId, aArea, aPosition) {
           if (aWidgetId != this.id)
             return;
           updateCombinedWidgetStyle(node, aArea, true);
           updateZoomResetButton();
           let areaType = CustomizableUI.getAreaType(aArea);
           if (areaType == CustomizableUI.TYPE_MENU_PANEL) {
             let panel = aDocument.getElementById(kPanelId);
             panel.addEventListener("popupshowing", updateZoomResetButton);
           } else if (areaType == CustomizableUI.TYPE_TOOLBAR) {
             let container = window.gBrowser.tabContainer;
             container.addEventListener("TabSelect", updateZoomResetButton);
           }
         }.bind(this),
         onWidgetRemoved: function(aWidgetId, aPrevArea) {
           if (aWidgetId != this.id)
             return;
           let areaType = CustomizableUI.getAreaType(aPrevArea);
           if (areaType == CustomizableUI.TYPE_MENU_PANEL) {
             let panel = aDocument.getElementById(kPanelId);
             panel.removeEventListener("popupshowing", updateZoomResetButton);
           } else if (areaType == CustomizableUI.TYPE_TOOLBAR) {
             let container = window.gBrowser.tabContainer;
             container.removeEventListener("TabSelect", updateZoomResetButton);
           }
           // When a widget is demoted to the palette ('removed'), it's visual
           // style should change.
           updateCombinedWidgetStyle(node, null, true);
           updateZoomResetButton();
         }.bind(this),
         onWidgetReset: function(aWidgetNode) {
           if (aWidgetNode != node)
             return;
           updateCombinedWidgetStyle(node, this.currentArea, true);
           updateZoomResetButton();
         }.bind(this),
         onWidgetMoved: function(aWidgetId, aArea) {
           if (aWidgetId != this.id)
             return;
           updateCombinedWidgetStyle(node, aArea, true);
           updateZoomResetButton();
         }.bind(this),
         onWidgetInstanceRemoved: function(aWidgetId, aDoc) {
           if (aWidgetId != this.id || aDoc != aDocument)
             return;
           CustomizableUI.removeListener(listener);
           Services.obs.removeObserver(updateZoomResetButton, "browser-fullZoom:zoomChange");
           Services.obs.removeObserver(updateZoomResetButton, "browser-fullZoom:zoomReset");
           Services.obs.removeObserver(updateZoomResetButton, "browser-fullZoom:location-change");
           let panel = aDoc.getElementById(kPanelId);
           panel.removeEventListener("popupshowing", updateZoomResetButton);
           let container = aDoc.defaultView.gBrowser.tabContainer;
           container.removeEventListener("TabSelect", updateZoomResetButton);
         }.bind(this),
         onCustomizeStart: function(aWindow) {
           if (aWindow.document == aDocument) {
             updateZoomResetButton();
           }
         },
         onCustomizeEnd: function(aWindow) {
           if (aWindow.document == aDocument) {
             updateZoomResetButton();
           }
         },
         onWidgetDrag: function(aWidgetId, aArea) {
           if (aWidgetId != this.id)
             return;
           aArea = aArea || this.currentArea;
           updateCombinedWidgetStyle(node, aArea, true);
         }.bind(this)
       };
       CustomizableUI.addListener(listener);
       return node;
     }
   }, {
     id: "edit-controls",
     type: "custom",
     tooltiptext: "edit-controls.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     onBuild: function(aDocument) {
       let buttons = [{
         id: "cut-button",
         command: "cmd_cut",
         label: true,
         tooltiptext: "tooltiptext2",
         shortcutId: "key_cut",
       }, {
         id: "copy-button",
         command: "cmd_copy",
         label: true,
         tooltiptext: "tooltiptext2",
         shortcutId: "key_copy",
       }, {
         id: "paste-button",
         command: "cmd_paste",
         label: true,
         tooltiptext: "tooltiptext2",
         shortcutId: "key_paste",
       }];
       let node = aDocument.createElementNS(kNSXUL, "toolbaritem");
       node.setAttribute("id", "edit-controls");
       node.setAttribute("label", CustomizableUI.getLocalizedProperty(this, "label"));
       node.setAttribute("title", CustomizableUI.getLocalizedProperty(this, "tooltiptext"));
       // Set this as an attribute in addition to the property to make sure we can style correctly.
       node.setAttribute("removable", "true");
       node.classList.add("chromeclass-toolbar-additional");
       node.classList.add("toolbaritem-combined-buttons");
       node.classList.add(kWidePanelItemClass);
       buttons.forEach(function(aButton, aIndex) {
         if (aIndex != 0)
           node.appendChild(aDocument.createElementNS(kNSXUL, "separator"));
         let btnNode = aDocument.createElementNS(kNSXUL, "toolbarbutton");
         setAttributes(btnNode, aButton);
         node.appendChild(btnNode);
       });
       updateCombinedWidgetStyle(node, this.currentArea);
       let listener = {
         onWidgetAdded: function(aWidgetId, aArea, aPosition) {
           if (aWidgetId != this.id)
             return;
           updateCombinedWidgetStyle(node, aArea);
         }.bind(this),
         onWidgetRemoved: function(aWidgetId, aPrevArea) {
           if (aWidgetId != this.id)
             return;
           // When a widget is demoted to the palette ('removed'), it's visual
           // style should change.
           updateCombinedWidgetStyle(node);
         }.bind(this),
         onWidgetReset: function(aWidgetNode) {
           if (aWidgetNode != node)
             return;
           updateCombinedWidgetStyle(node, this.currentArea);
         }.bind(this),
         onWidgetMoved: function(aWidgetId, aArea) {
           if (aWidgetId != this.id)
             return;
           updateCombinedWidgetStyle(node, aArea);
         }.bind(this),
         onWidgetInstanceRemoved: function(aWidgetId, aDoc) {
           if (aWidgetId != this.id || aDoc != aDocument)
             return;
           CustomizableUI.removeListener(listener);
         }.bind(this),
         onWidgetDrag: function(aWidgetId, aArea) {
           if (aWidgetId != this.id)
             return;
           aArea = aArea || this.currentArea;
           updateCombinedWidgetStyle(node, aArea);
         }.bind(this)
       };
       CustomizableUI.addListener(listener);
       return node;
     }
   },
   {
     id: "feed-button",
     type: "view",
     viewId: "PanelUI-feeds",
     tooltiptext: "feed-button.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     onClick: function(aEvent) {
       let win = aEvent.target.ownerDocument.defaultView;
       let feeds = win.gBrowser.selectedBrowser.feeds;
       // Here, we only care about the case where we have exactly 1 feed and the
       // user clicked...
       let isClick = (aEvent.button == 0 || aEvent.button == 1);
       if (feeds && feeds.length == 1 && isClick) {
         aEvent.preventDefault();
         aEvent.stopPropagation();
         win.FeedHandler.subscribeToFeed(feeds[0].href, aEvent);
         CustomizableUI.hidePanelForNode(aEvent.target);
       }
     },
     onViewShowing: function(aEvent) {
       let doc = aEvent.detail.ownerDocument;
       let container = doc.getElementById("PanelUI-feeds");
       let gotView = doc.defaultView.FeedHandler.buildFeedList(container, true);
       // For no feeds or only a single one, don't show the panel.
       if (!gotView) {
         aEvent.preventDefault();
         aEvent.stopPropagation();
         return;
       }
     },
     onCreated: function(node) {
       let win = node.ownerDocument.defaultView;
       let selectedBrowser = win.gBrowser.selectedBrowser;
       let feeds = selectedBrowser && selectedBrowser.feeds;
       if (!feeds || !feeds.length) {
         node.setAttribute("disabled", "true");
       }
     }
   }, {
     id: "characterencoding-button",
     type: "view",
     viewId: "PanelUI-characterEncodingView",
     tooltiptext: "characterencoding-button.tooltiptext2",
     defaultArea: CustomizableUI.AREA_PANEL,
     maybeDisableMenu: function(aDocument) {
       let window = aDocument.defaultView;
       return !(window.gBrowser &&
                window.gBrowser.docShell &&
                window.gBrowser.docShell.mayEnableCharacterEncodingMenu);
     },
     populateList: function(aDocument, aContainerId, aSection) {
       let containerElem = aDocument.getElementById(aContainerId);
       containerElem.addEventListener("command", this.onCommand, false);
       let list = this.charsetInfo[aSection];
       for (let item of list) {
         let elem = aDocument.createElementNS(kNSXUL, "toolbarbutton");
         elem.setAttribute("label", item.label);
         elem.setAttribute("type", "checkbox");
         elem.section = aSection;
         elem.value = item.value;
         elem.setAttribute("class", "subviewbutton");
         containerElem.appendChild(elem);
       }
     },
     updateCurrentCharset: function(aDocument) {
       let content = aDocument.defaultView.content;
       let currentCharset = content && content.document && content.document.characterSet;
       currentCharset = CharsetMenu.foldCharset(currentCharset);
       let pinnedContainer = aDocument.getElementById("PanelUI-characterEncodingView-pinned");
       let charsetContainer = aDocument.getElementById("PanelUI-characterEncodingView-charsets");
       let elements = [...(pinnedContainer.childNodes), ...(charsetContainer.childNodes)];
       this._updateElements(elements, currentCharset);
     },
     updateCurrentDetector: function(aDocument) {
       let detectorContainer = aDocument.getElementById("PanelUI-characterEncodingView-autodetect");
       let currentDetector;
       try {
         currentDetector = Services.prefs.getComplexValue(
           "intl.charset.detector", Ci.nsIPrefLocalizedString).data;
       } catch (e) {}
       this._updateElements(detectorContainer.childNodes, currentDetector);
     },
     _updateElements: function(aElements, aCurrentItem) {
       if (!aElements.length) {
         return;
       }
       let disabled = this.maybeDisableMenu(aElements[0].ownerDocument);
       for (let elem of aElements) {
         if (disabled) {
           elem.setAttribute("disabled", "true");
         } else {
           elem.removeAttribute("disabled");
         }
         if (elem.value.toLowerCase() == aCurrentItem.toLowerCase()) {
           elem.setAttribute("checked", "true");
         } else {
           elem.removeAttribute("checked");
         }
       }
     },
     onViewShowing: function(aEvent) {
       let document = aEvent.target.ownerDocument;
       let autoDetectLabelId = "PanelUI-characterEncodingView-autodetect-label";
       let autoDetectLabel = document.getElementById(autoDetectLabelId);
       if (!autoDetectLabel.hasAttribute("value")) {
         let label = CharsetBundle.GetStringFromName("charsetMenuAutodet");
         autoDetectLabel.setAttribute("value", label);
         this.populateList(document,
                           "PanelUI-characterEncodingView-pinned",
                           "pinnedCharsets");
         this.populateList(document,
                           "PanelUI-characterEncodingView-charsets",
                           "otherCharsets");
         this.populateList(document,
                           "PanelUI-characterEncodingView-autodetect",
                           "detectors");
       }
       this.updateCurrentDetector(document);
       this.updateCurrentCharset(document);
     },
     onCommand: function(aEvent) {
       let node = aEvent.target;
       if (!node.hasAttribute || !node.section) {
         return;
       }
       let window = node.ownerDocument.defaultView;
       let section = node.section;
       let value = node.value;
       // The behavior as implemented here is directly based off of the
       // `MultiplexHandler()` method in browser.js.
       if (section != "detectors") {
         window.BrowserSetForcedCharacterSet(value);
       } else {
         // Set the detector pref.
         try {
           let str = Cc["@mozilla.org/supports-string;1"]
                       .createInstance(Ci.nsISupportsString);
           str.data = value;
           Services.prefs.setComplexValue("intl.charset.detector", Ci.nsISupportsString, str);
         } catch (e) {
           Cu.reportError("Failed to set the intl.charset.detector preference.");
         }
         // Prepare a browser page reload with a changed charset.
         window.BrowserCharsetReload();
       }
     },
     onCreated: function(aNode) {
       const kPanelId = "PanelUI-popup";
       let document = aNode.ownerDocument;
       let updateButton = () => {
         if (this.maybeDisableMenu(document))
           aNode.setAttribute("disabled", "true");
         else
           aNode.removeAttribute("disabled");
       };
       if (this.currentArea == CustomizableUI.AREA_PANEL) {
         let panel = document.getElementById(kPanelId);
         panel.addEventListener("popupshowing", updateButton);
       }
       let listener = {
         onWidgetAdded: (aWidgetId, aArea) => {
           if (aWidgetId != this.id)
             return;
           if (aArea == CustomizableUI.AREA_PANEL) {
             let panel = document.getElementById(kPanelId);
             panel.addEventListener("popupshowing", updateButton);
           }
         },
         onWidgetRemoved: (aWidgetId, aPrevArea) => {
           if (aWidgetId != this.id)
             return;
           aNode.removeAttribute("disabled");
           if (aPrevArea == CustomizableUI.AREA_PANEL) {
             let panel = document.getElementById(kPanelId);
             panel.removeEventListener("popupshowing", updateButton);
           }
         },
         onWidgetInstanceRemoved: (aWidgetId, aDoc) => {
           if (aWidgetId != this.id || aDoc != document)
             return;
           CustomizableUI.removeListener(listener);
           let panel = aDoc.getElementById(kPanelId);
           panel.removeEventListener("popupshowing", updateButton);
         }
       };
       CustomizableUI.addListener(listener);
       if (!this.charsetInfo) {
         this.charsetInfo = CharsetMenu.getData();
       }
     }
   }, {
     id: "email-link-button",
     tooltiptext: "email-link-button.tooltiptext3",
     onCommand: function(aEvent) {
       let win = aEvent.view;
       win.MailIntegration.sendLinkForWindow(win.content);
     }
   }];
 #ifdef XP_WIN
 #ifdef MOZ_METRO
 if (Services.metro && Services.metro.supported) {
   let widgetArgs = {tooltiptext: "switch-to-metro-button2.tooltiptext"};
   let brandShortName = BrandBundle.GetStringFromName("brandShortName");
   let metroTooltip = CustomizableUI.getLocalizedProperty(widgetArgs, "tooltiptext",
                                                          [brandShortName]);
   CustomizableWidgets.push({
     id: "switch-to-metro-button",
     label: "switch-to-metro-button2.label",
     tooltiptext: metroTooltip,
     defaultArea: CustomizableUI.AREA_PANEL,
     showInPrivateBrowsing: false, /* See bug 928068 */
     onCommand: function(aEvent) {
       let win = aEvent.view;
       if (win && typeof win.SwitchToMetro == "function") {
         win.SwitchToMetro();
       }
     }
   });
 }
 #endif
 #endif
 #ifdef NIGHTLY_BUILD
 /**
  * The e10s button's purpose is to lower the barrier of entry
  * for our Nightly testers to use e10s windows. We'll be removing it
  * once remote tabs are enabled. This button should never ever make it
  * to production. If it does, that'd be bad, and we should all feel bad.
  */
 if (Services.prefs.getBoolPref("browser.tabs.remote")) {
   let getCommandFunction = function(aOpenRemote) {
     return function(aEvent) {
       let win = aEvent.view;
       if (win && typeof win.OpenBrowserWindow == "function") {
         win.OpenBrowserWindow({remote: aOpenRemote});
       }
     };
   }
   let openRemote = !Services.prefs.getBoolPref("browser.tabs.remote.autostart");
   // Like the XUL menuitem counterparts, we hard-code these strings in because
   // this button should never roll into production.
   let buttonLabel = openRemote ? "New e10s Window"
                                : "New Non-e10s Window";
   CustomizableWidgets.push({
     id: "e10s-button",
     label: buttonLabel,
     tooltiptext: buttonLabel,
     defaultArea: CustomizableUI.AREA_PANEL,
     onCommand: getCommandFunction(openRemote),
   });
 }
 #endif

The Tor Browser / annotate

browser/components/customizableui/src/CustomizableWidgets.jsm@8bccb770b82d (annotated)

browser/components/customizableui/src/CustomizableWidgets.jsm