forked from mirrors/gecko-dev
532 lines
18 KiB
JavaScript
532 lines
18 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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XPCOMUtils.defineLazyModuleGetter(this, "CustomizableUI",
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"resource:///modules/CustomizableUI.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ScrollbarSampler",
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"resource:///modules/ScrollbarSampler.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Pocket",
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"resource:///modules/Pocket.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Promise",
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"resource://gre/modules/Promise.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ShortcutUtils",
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"resource://gre/modules/ShortcutUtils.jsm");
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/**
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* Maintains the state and dispatches events for the main menu panel.
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*/
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const PanelUI = {
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/** Panel events that we listen for. **/
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get kEvents() ["popupshowing", "popupshown", "popuphiding", "popuphidden"],
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/**
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* Used for lazily getting and memoizing elements from the document. Lazy
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* getters are set in init, and memoizing happens after the first retrieval.
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*/
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get kElements() {
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return {
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contents: "PanelUI-contents",
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mainView: "PanelUI-mainView",
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multiView: "PanelUI-multiView",
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helpView: "PanelUI-helpView",
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menuButton: "PanelUI-menu-button",
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panel: "PanelUI-popup",
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scroller: "PanelUI-contents-scroller"
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};
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},
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_initialized: false,
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init: function() {
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for (let [k, v] of Iterator(this.kElements)) {
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// Need to do fresh let-bindings per iteration
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let getKey = k;
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let id = v;
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this.__defineGetter__(getKey, function() {
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delete this[getKey];
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return this[getKey] = document.getElementById(id);
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});
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}
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this.menuButton.addEventListener("mousedown", this);
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this.menuButton.addEventListener("keypress", this);
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this._overlayScrollListenerBoundFn = this._overlayScrollListener.bind(this);
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window.matchMedia("(-moz-overlay-scrollbars)").addListener(this._overlayScrollListenerBoundFn);
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CustomizableUI.addListener(this);
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this._initialized = true;
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},
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_eventListenersAdded: false,
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_ensureEventListenersAdded: function() {
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if (this._eventListenersAdded)
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return;
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this._addEventListeners();
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},
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_addEventListeners: function() {
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for (let event of this.kEvents) {
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this.panel.addEventListener(event, this);
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}
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this.helpView.addEventListener("ViewShowing", this._onHelpViewShow, false);
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this._eventListenersAdded = true;
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},
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uninit: function() {
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for (let event of this.kEvents) {
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this.panel.removeEventListener(event, this);
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}
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this.helpView.removeEventListener("ViewShowing", this._onHelpViewShow);
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this.menuButton.removeEventListener("mousedown", this);
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this.menuButton.removeEventListener("keypress", this);
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window.matchMedia("(-moz-overlay-scrollbars)").removeListener(this._overlayScrollListenerBoundFn);
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CustomizableUI.removeListener(this);
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this._overlayScrollListenerBoundFn = null;
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},
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/**
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* Customize mode extracts the mainView and puts it somewhere else while the
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* user customizes. Upon completion, this function can be called to put the
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* panel back to where it belongs in normal browsing mode.
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*
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* @param aMainView
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* The mainView node to put back into place.
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*/
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setMainView: function(aMainView) {
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this._ensureEventListenersAdded();
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this.multiView.setMainView(aMainView);
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},
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/**
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* Opens the menu panel if it's closed, or closes it if it's
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* open.
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*
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* @param aEvent the event that triggers the toggle.
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*/
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toggle: function(aEvent) {
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// Don't show the panel if the window is in customization mode,
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// since this button doubles as an exit path for the user in this case.
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if (document.documentElement.hasAttribute("customizing")) {
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return;
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}
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this._ensureEventListenersAdded();
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if (this.panel.state == "open") {
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this.hide();
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} else if (this.panel.state == "closed") {
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this.show(aEvent);
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}
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},
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/**
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* Opens the menu panel. If the event target has a child with the
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* toolbarbutton-icon attribute, the panel will be anchored on that child.
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* Otherwise, the panel is anchored on the event target itself.
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*
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* @param aEvent the event (if any) that triggers showing the menu.
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*/
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show: function(aEvent) {
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let deferred = Promise.defer();
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this.ensureReady().then(() => {
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if (this.panel.state == "open" ||
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document.documentElement.hasAttribute("customizing")) {
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deferred.resolve();
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return;
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}
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let editControlPlacement = CustomizableUI.getPlacementOfWidget("edit-controls");
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if (editControlPlacement && editControlPlacement.area == CustomizableUI.AREA_PANEL) {
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updateEditUIVisibility();
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}
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let personalBookmarksPlacement = CustomizableUI.getPlacementOfWidget("personal-bookmarks");
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if (personalBookmarksPlacement &&
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personalBookmarksPlacement.area == CustomizableUI.AREA_PANEL) {
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PlacesToolbarHelper.customizeChange();
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}
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let anchor;
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if (!aEvent ||
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aEvent.type == "command") {
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anchor = this.menuButton;
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} else {
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anchor = aEvent.target;
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}
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this.panel.addEventListener("popupshown", function onPopupShown() {
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this.removeEventListener("popupshown", onPopupShown);
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// As an optimization for the customize mode transition, we preload
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// about:customizing in the background once the menu panel is first
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// shown.
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gCustomizationTabPreloader.ensurePreloading();
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deferred.resolve();
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});
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let iconAnchor =
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document.getAnonymousElementByAttribute(anchor, "class",
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"toolbarbutton-icon");
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this.panel.openPopup(iconAnchor || anchor);
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});
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return deferred.promise;
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},
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/**
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* If the menu panel is being shown, hide it.
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*/
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hide: function() {
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if (document.documentElement.hasAttribute("customizing")) {
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return;
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}
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this.panel.hidePopup();
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},
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handleEvent: function(aEvent) {
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switch (aEvent.type) {
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case "popupshowing":
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this._adjustLabelsForAutoHyphens();
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// Fall through
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case "popupshown":
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// Fall through
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case "popuphiding":
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// Fall through
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case "popuphidden":
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this._updatePanelButton(aEvent.target);
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break;
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case "mousedown":
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if (aEvent.button == 0)
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this.toggle(aEvent);
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break;
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case "keypress":
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this.toggle(aEvent);
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break;
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}
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},
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get isReady() {
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return !!this._isReady;
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},
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/**
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* Registering the menu panel is done lazily for performance reasons. This
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* method is exposed so that CustomizationMode can force panel-readyness in the
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* event that customization mode is started before the panel has been opened
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* by the user.
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*
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* @param aCustomizing (optional) set to true if this was called while entering
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* customization mode. If that's the case, we trust that customization
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* mode will handle calling beginBatchUpdate and endBatchUpdate.
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*
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* @return a Promise that resolves once the panel is ready to roll.
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*/
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ensureReady: function(aCustomizing=false) {
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if (this._readyPromise) {
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return this._readyPromise;
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}
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this._readyPromise = Task.spawn(function() {
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if (!this._initialized) {
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let delayedStartupDeferred = Promise.defer();
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let delayedStartupObserver = (aSubject, aTopic, aData) => {
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if (aSubject == window) {
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Services.obs.removeObserver(delayedStartupObserver, "browser-delayed-startup-finished");
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delayedStartupDeferred.resolve();
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}
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};
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Services.obs.addObserver(delayedStartupObserver, "browser-delayed-startup-finished", false);
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yield delayedStartupDeferred.promise;
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}
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this.contents.setAttributeNS("http://www.w3.org/XML/1998/namespace", "lang",
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getLocale());
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if (!this._scrollWidth) {
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// In order to properly center the contents of the panel, while ensuring
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// that we have enough space on either side to show a scrollbar, we have to
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// do a bit of hackery. In particular, we calculate a new width for the
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// scroller, based on the system scrollbar width.
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this._scrollWidth =
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(yield ScrollbarSampler.getSystemScrollbarWidth()) + "px";
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let cstyle = window.getComputedStyle(this.scroller);
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let widthStr = cstyle.width;
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// Get the calculated padding on the left and right sides of
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// the scroller too. We'll use that in our final calculation so
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// that if a scrollbar appears, we don't have the contents right
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// up against the edge of the scroller.
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let paddingLeft = cstyle.paddingLeft;
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let paddingRight = cstyle.paddingRight;
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let calcStr = [widthStr, this._scrollWidth,
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paddingLeft, paddingRight].join(" + ");
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this.scroller.style.width = "calc(" + calcStr + ")";
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}
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if (aCustomizing) {
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CustomizableUI.registerMenuPanel(this.contents);
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} else {
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this.beginBatchUpdate();
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try {
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CustomizableUI.registerMenuPanel(this.contents);
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} finally {
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this.endBatchUpdate();
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}
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}
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this._updateQuitTooltip();
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this.panel.hidden = false;
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this._isReady = true;
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}.bind(this)).then(null, Cu.reportError);
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return this._readyPromise;
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},
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/**
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* Switch the panel to the main view if it's not already
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* in that view.
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*/
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showMainView: function() {
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this._ensureEventListenersAdded();
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this.multiView.showMainView();
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},
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/**
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* Switch the panel to the help view if it's not already
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* in that view.
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*/
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showHelpView: function(aAnchor) {
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this._ensureEventListenersAdded();
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this.multiView.showSubView("PanelUI-helpView", aAnchor);
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},
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/**
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* Shows a subview in the panel with a given ID.
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*
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* @param aViewId the ID of the subview to show.
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* @param aAnchor the element that spawned the subview.
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* @param aPlacementArea the CustomizableUI area that aAnchor is in.
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*/
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showSubView: function(aViewId, aAnchor, aPlacementArea) {
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this._ensureEventListenersAdded();
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let viewNode = document.getElementById(aViewId);
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if (!viewNode) {
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Cu.reportError("Could not show panel subview with id: " + aViewId);
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return;
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}
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if (!aAnchor) {
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Cu.reportError("Expected an anchor when opening subview with id: " + aViewId);
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return;
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}
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if (aPlacementArea == CustomizableUI.AREA_PANEL) {
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this.multiView.showSubView(aViewId, aAnchor);
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} else if (!aAnchor.open) {
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aAnchor.open = true;
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// Emit the ViewShowing event so that the widget definition has a chance
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// to lazily populate the subview with things.
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let evt = document.createEvent("CustomEvent");
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evt.initCustomEvent("ViewShowing", true, true, viewNode);
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viewNode.dispatchEvent(evt);
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if (evt.defaultPrevented) {
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return;
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}
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let tempPanel = document.createElement("panel");
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tempPanel.setAttribute("type", "arrow");
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tempPanel.setAttribute("id", "customizationui-widget-panel");
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tempPanel.setAttribute("class", "cui-widget-panel");
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if (this._disableAnimations) {
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tempPanel.setAttribute("animate", "false");
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}
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tempPanel.setAttribute("context", "");
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document.getElementById(CustomizableUI.AREA_NAVBAR).appendChild(tempPanel);
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// If the view has a footer, set a convenience class on the panel.
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tempPanel.classList.toggle("cui-widget-panelWithFooter",
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viewNode.querySelector(".panel-subview-footer"));
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let multiView = document.createElement("panelmultiview");
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multiView.setAttribute("id", "customizationui-widget-multiview");
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multiView.setAttribute("nosubviews", "true");
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tempPanel.appendChild(multiView);
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multiView.setAttribute("mainViewIsSubView", "true");
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multiView.setMainView(viewNode);
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viewNode.classList.add("cui-widget-panelview");
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CustomizableUI.addPanelCloseListeners(tempPanel);
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let panelRemover = function() {
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tempPanel.removeEventListener("popuphidden", panelRemover);
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viewNode.classList.remove("cui-widget-panelview");
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CustomizableUI.removePanelCloseListeners(tempPanel);
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let evt = new CustomEvent("ViewHiding", {detail: viewNode});
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viewNode.dispatchEvent(evt);
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aAnchor.open = false;
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this.multiView.appendChild(viewNode);
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tempPanel.parentElement.removeChild(tempPanel);
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}.bind(this);
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tempPanel.addEventListener("popuphidden", panelRemover);
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let iconAnchor =
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document.getAnonymousElementByAttribute(aAnchor, "class",
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"toolbarbutton-icon");
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if (iconAnchor && aAnchor.id) {
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iconAnchor.setAttribute("consumeanchor", aAnchor.id);
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}
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tempPanel.openPopup(iconAnchor || aAnchor, "bottomcenter topright");
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}
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},
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/**
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* NB: The enable- and disableSingleSubviewPanelAnimations methods only
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* affect the hiding/showing animations of single-subview panels (tempPanel
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* in the showSubView method).
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*/
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disableSingleSubviewPanelAnimations: function() {
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this._disableAnimations = true;
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},
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enableSingleSubviewPanelAnimations: function() {
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this._disableAnimations = false;
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},
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onWidgetAfterDOMChange: function(aNode, aNextNode, aContainer, aWasRemoval) {
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if (aContainer != this.contents) {
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return;
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}
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if (aWasRemoval) {
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aNode.removeAttribute("auto-hyphens");
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}
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},
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onWidgetBeforeDOMChange: function(aNode, aNextNode, aContainer, aIsRemoval) {
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if (aContainer != this.contents) {
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return;
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}
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if (!aIsRemoval &&
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(this.panel.state == "open" ||
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document.documentElement.hasAttribute("customizing"))) {
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this._adjustLabelsForAutoHyphens(aNode);
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}
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},
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/**
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* Signal that we're about to make a lot of changes to the contents of the
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* panels all at once. For performance, we ignore the mutations.
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*/
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beginBatchUpdate: function() {
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this._ensureEventListenersAdded();
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this.multiView.ignoreMutations = true;
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},
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/**
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* Signal that we're done making bulk changes to the panel. We now pay
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* attention to mutations. This automatically synchronizes the multiview
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* container with whichever view is displayed if the panel is open.
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*/
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endBatchUpdate: function(aReason) {
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this._ensureEventListenersAdded();
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this.multiView.ignoreMutations = false;
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},
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_adjustLabelsForAutoHyphens: function(aNode) {
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let toolbarButtons = aNode ? [aNode] :
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this.contents.querySelectorAll(".toolbarbutton-1");
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for (let node of toolbarButtons) {
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let label = node.getAttribute("label");
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if (!label) {
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continue;
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}
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if (label.includes("\u00ad")) {
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node.setAttribute("auto-hyphens", "off");
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} else {
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node.removeAttribute("auto-hyphens");
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}
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}
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},
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/**
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* Sets the anchor node into the open or closed state, depending
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* on the state of the panel.
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*/
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_updatePanelButton: function() {
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this.menuButton.open = this.panel.state == "open" ||
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this.panel.state == "showing";
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},
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_onHelpViewShow: function(aEvent) {
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// Call global menu setup function
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buildHelpMenu();
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let helpMenu = document.getElementById("menu_HelpPopup");
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let items = this.getElementsByTagName("vbox")[0];
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let attrs = ["oncommand", "onclick", "label", "key", "disabled"];
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let NSXUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
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// Remove all buttons from the view
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while (items.firstChild) {
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items.removeChild(items.firstChild);
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}
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// Add the current set of menuitems of the Help menu to this view
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let menuItems = Array.prototype.slice.call(helpMenu.getElementsByTagName("menuitem"));
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let fragment = document.createDocumentFragment();
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for (let node of menuItems) {
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if (node.hidden)
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continue;
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let button = document.createElementNS(NSXUL, "toolbarbutton");
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// Copy specific attributes from a menuitem of the Help menu
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for (let attrName of attrs) {
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if (!node.hasAttribute(attrName))
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continue;
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button.setAttribute(attrName, node.getAttribute(attrName));
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}
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button.setAttribute("class", "subviewbutton");
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fragment.appendChild(button);
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}
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items.appendChild(fragment);
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},
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_updateQuitTooltip: function() {
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#ifndef XP_WIN
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#ifdef XP_MACOSX
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let tooltipId = "quit-button.tooltiptext.mac";
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#else
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let tooltipId = "quit-button.tooltiptext.linux2";
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#endif
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let brands = Services.strings.createBundle("chrome://branding/locale/brand.properties");
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let stringArgs = [brands.GetStringFromName("brandShortName")];
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let key = document.getElementById("key_quitApplication");
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stringArgs.push(ShortcutUtils.prettifyShortcut(key));
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let tooltipString = CustomizableUI.getLocalizedProperty({x: tooltipId}, "x", stringArgs);
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let quitButton = document.getElementById("PanelUI-quit");
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quitButton.setAttribute("tooltiptext", tooltipString);
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#endif
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},
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_overlayScrollListenerBoundFn: null,
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_overlayScrollListener: function(aMQL) {
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ScrollbarSampler.resetSystemScrollbarWidth();
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this._scrollWidth = null;
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},
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};
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/**
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* Gets the currently selected locale for display.
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* @return the selected locale or "en-US" if none is selected
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*/
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function getLocale() {
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const PREF_SELECTED_LOCALE = "general.useragent.locale";
|
|
try {
|
|
let locale = Services.prefs.getComplexValue(PREF_SELECTED_LOCALE,
|
|
Ci.nsIPrefLocalizedString);
|
|
if (locale)
|
|
return locale;
|
|
}
|
|
catch (e) { }
|
|
|
|
try {
|
|
return Services.prefs.getCharPref(PREF_SELECTED_LOCALE);
|
|
}
|
|
catch (e) { }
|
|
|
|
return "en-US";
|
|
}
|