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+/* 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";
+
+this.EXPORTED_SYMBOLS = ["CustomizableUI"];
+
+const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PanelWideWidgetTracker",
+ "resource:///modules/PanelWideWidgetTracker.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "CustomizableWidgets",
+ "resource:///modules/CustomizableWidgets.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "DeferredTask",
+ "resource://gre/modules/DeferredTask.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
+ "resource://gre/modules/PrivateBrowsingUtils.jsm");
+XPCOMUtils.defineLazyGetter(this, "gWidgetsBundle", function() {
+ const kUrl = "chrome://browser/locale/customizableui/customizableWidgets.properties";
+ return Services.strings.createBundle(kUrl);
+});
+XPCOMUtils.defineLazyModuleGetter(this, "ShortcutUtils",
+ "resource://gre/modules/ShortcutUtils.jsm");
+XPCOMUtils.defineLazyServiceGetter(this, "gELS",
+ "@mozilla.org/eventlistenerservice;1", "nsIEventListenerService");
+XPCOMUtils.defineLazyModuleGetter(this, "LightweightThemeManager",
+ "resource://gre/modules/LightweightThemeManager.jsm");
+
+const kNSXUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+
+const kSpecialWidgetPfx = "customizableui-special-";
+
+const kPrefCustomizationState = "browser.uiCustomization.state";
+const kPrefCustomizationAutoAdd = "browser.uiCustomization.autoAdd";
+const kPrefCustomizationDebug = "browser.uiCustomization.debug";
+const kPrefDrawInTitlebar = "browser.tabs.drawInTitlebar";
+const kPrefWebIDEInNavbar = "devtools.webide.widget.inNavbarByDefault";
+
+const kExpectedWindowURL = "chrome://browser/content/browser.xul";
+
+/**
+ * The keys are the handlers that are fired when the event type (the value)
+ * is fired on the subview. A widget that provides a subview has the option
+ * of providing onViewShowing and onViewHiding event handlers.
+ */
+const kSubviewEvents = [
+ "ViewShowing",
+ "ViewHiding"
+];
+
+/**
+ * The current version. We can use this to auto-add new default widgets as necessary.
+ * (would be const but isn't because of testing purposes)
+ */
+var kVersion = 6;
+
+/**
+ * Buttons removed from built-ins by version they were removed. kVersion must be
+ * bumped any time a new id is added to this. Use the button id as key, and
+ * version the button is removed in as the value. e.g. "pocket-button": 5
+ */
+var ObsoleteBuiltinButtons = {
+ "pocket-button": 6
+};
+
+/**
+ * gPalette is a map of every widget that CustomizableUI.jsm knows about, keyed
+ * on their IDs.
+ */
+var gPalette = new Map();
+
+/**
+ * gAreas maps area IDs to Sets of properties about those areas. An area is a
+ * place where a widget can be put.
+ */
+var gAreas = new Map();
+
+/**
+ * gPlacements maps area IDs to Arrays of widget IDs, indicating that the widgets
+ * are placed within that area (either directly in the area node, or in the
+ * customizationTarget of the node).
+ */
+var gPlacements = new Map();
+
+/**
+ * gFuturePlacements represent placements that will happen for areas that have
+ * not yet loaded (due to lazy-loading). This can occur when add-ons register
+ * widgets.
+ */
+var gFuturePlacements = new Map();
+
+// XXXunf Temporary. Need a nice way to abstract functions to build widgets
+// of these types.
+var gSupportedWidgetTypes = new Set(["button", "view", "custom"]);
+
+/**
+ * gPanelsForWindow is a list of known panels in a window which we may need to close
+ * should command events fire which target them.
+ */
+var gPanelsForWindow = new WeakMap();
+
+/**
+ * gSeenWidgets remembers which widgets the user has seen for the first time
+ * before. This way, if a new widget is created, and the user has not seen it
+ * before, it can be put in its default location. Otherwise, it remains in the
+ * palette.
+ */
+var gSeenWidgets = new Set();
+
+/**
+ * gDirtyAreaCache is a set of area IDs for areas where items have been added,
+ * moved or removed at least once. This set is persisted, and is used to
+ * optimize building of toolbars in the default case where no toolbars should
+ * be "dirty".
+ */
+var gDirtyAreaCache = new Set();
+
+/**
+ * gPendingBuildAreas is a map from area IDs to map from build nodes to their
+ * existing children at the time of node registration, that are waiting
+ * for the area to be registered
+ */
+var gPendingBuildAreas = new Map();
+
+var gSavedState = null;
+var gRestoring = false;
+var gDirty = false;
+var gInBatchStack = 0;
+var gResetting = false;
+var gUndoResetting = false;
+
+/**
+ * gBuildAreas maps area IDs to actual area nodes within browser windows.
+ */
+var gBuildAreas = new Map();
+
+/**
+ * gBuildWindows is a map of windows that have registered build areas, mapped
+ * to a Set of known toolboxes in that window.
+ */
+var gBuildWindows = new Map();
+
+var gNewElementCount = 0;
+var gGroupWrapperCache = new Map();
+var gSingleWrapperCache = new WeakMap();
+var gListeners = new Set();
+
+var gUIStateBeforeReset = {
+ uiCustomizationState: null,
+ drawInTitlebar: null,
+ currentTheme: null,
+};
+
+XPCOMUtils.defineLazyGetter(this, "log", () => {
+ let scope = {};
+ Cu.import("resource://gre/modules/Console.jsm", scope);
+ let debug;
+ try {
+ debug = Services.prefs.getBoolPref(kPrefCustomizationDebug);
+ } catch (ex) {}
+ let consoleOptions = {
+ maxLogLevel: debug ? "all" : "log",
+ prefix: "CustomizableUI",
+ };
+ return new scope.ConsoleAPI(consoleOptions);
+});
+
+var CustomizableUIInternal = {
+ initialize() {
+ log.debug("Initializing");
+
+ this.addListener(this);
+ this._defineBuiltInWidgets();
+ this.loadSavedState();
+ this._introduceNewBuiltinWidgets();
+ this._markObsoleteBuiltinButtonsSeen();
+
+ /**
+ * Please be advised that adding items to the panel by default could
+ * cause CART talos test regressions. This might happen when the
+ * number of items in the panel causes the area to become "scrollable"
+ * during the last phases of the transition. See bug 1230671 for an
+ * example of this. Be sure that what you're adding really needs to go
+ * into the panel by default, and if it does, consider swapping
+ * something out for it.
+ */
+ let panelPlacements = [
+ "edit-controls",
+ "zoom-controls",
+ "new-window-button",
+ "privatebrowsing-button",
+ "save-page-button",
+ "print-button",
+ "history-panelmenu",
+ "fullscreen-button",
+ "find-button",
+ "preferences-button",
+ "add-ons-button",
+ "sync-button",
+ ];
+
+#ifndef MOZ_DEV_EDITION
+ panelPlacements.splice(-1, 0, "developer-button");
+#endif
+
+#ifdef E10S_TESTING_ONLY
+ if (gPalette.has("e10s-button")) {
+ let newWindowIndex = panelPlacements.indexOf("new-window-button");
+ if (newWindowIndex > -1) {
+ panelPlacements.splice(newWindowIndex + 1, 0, "e10s-button");
+ }
+ }
+#endif
+
+ let showCharacterEncoding = Services.prefs.getComplexValue(
+ "browser.menu.showCharacterEncoding",
+ Ci.nsIPrefLocalizedString
+ ).data;
+ if (showCharacterEncoding == "true") {
+ panelPlacements.push("characterencoding-button");
+ }
+
+#ifdef NIGHTLY_BUILD
+ if (Services.prefs.getBoolPref("extensions.webcompat-reporter.enabled")) {
+ panelPlacements.push("webcompat-reporter-button");
+ }
+#endif
+
+ this.registerArea(CustomizableUI.AREA_PANEL, {
+ anchor: "PanelUI-menu-button",
+ type: CustomizableUI.TYPE_MENU_PANEL,
+ defaultPlacements: panelPlacements
+ }, true);
+ PanelWideWidgetTracker.init();
+
+ let navbarPlacements = [
+ "urlbar-container",
+ "search-container",
+ "bookmarks-menu-button",
+ "downloads-button",
+ "home-button",
+ ];
+
+#ifdef MOZ_DEV_EDITION
+ navbarPlacements.splice(2, 0, "developer-button");
+#endif
+
+ if (Services.prefs.getBoolPref(kPrefWebIDEInNavbar)) {
+ navbarPlacements.push("webide-button");
+ }
+
+ // Place this last, when createWidget is called for pocket, it will
+ // append to the toolbar.
+ if (Services.prefs.getPrefType("extensions.pocket.enabled") != Services.prefs.PREF_INVALID &&
+ Services.prefs.getBoolPref("extensions.pocket.enabled")) {
+ navbarPlacements.push("pocket-button");
+ }
+
+ this.registerArea(CustomizableUI.AREA_NAVBAR, {
+ legacy: true,
+ type: CustomizableUI.TYPE_TOOLBAR,
+ overflowable: true,
+ defaultPlacements: navbarPlacements,
+ defaultCollapsed: false,
+ }, true);
+
+#ifdef MENUBAR_CAN_AUTOHIDE
+ this.registerArea(CustomizableUI.AREA_MENUBAR, {
+ legacy: true,
+ type: CustomizableUI.TYPE_TOOLBAR,
+ defaultPlacements: [
+ "menubar-items",
+ ],
+ defaultCollapsed: true,
+ }, true);
+#endif
+
+ this.registerArea(CustomizableUI.AREA_TABSTRIP, {
+ legacy: true,
+ type: CustomizableUI.TYPE_TOOLBAR,
+ defaultPlacements: [
+ "tabbrowser-tabs",
+ "new-tab-button",
+ "alltabs-button",
+ ],
+ defaultCollapsed: null,
+ }, true);
+ this.registerArea(CustomizableUI.AREA_BOOKMARKS, {
+ legacy: true,
+ type: CustomizableUI.TYPE_TOOLBAR,
+ defaultPlacements: [
+ "personal-bookmarks",
+ ],
+ defaultCollapsed: true,
+ }, true);
+
+ this.registerArea(CustomizableUI.AREA_ADDONBAR, {
+ type: CustomizableUI.TYPE_TOOLBAR,
+ legacy: true,
+ defaultPlacements: ["addonbar-closebutton", "status-bar"],
+ defaultCollapsed: false,
+ }, true);
+ },
+
+ get _builtinToolbars() {
+ let toolbars = new Set([
+ CustomizableUI.AREA_NAVBAR,
+ CustomizableUI.AREA_BOOKMARKS,
+ CustomizableUI.AREA_TABSTRIP,
+ CustomizableUI.AREA_ADDONBAR,
+ ]);
+#ifndef XP_MACOSX
+ toolbars.add(CustomizableUI.AREA_MENUBAR);
+#endif
+ return toolbars;
+ },
+
+ _defineBuiltInWidgets() {
+ for (let widgetDefinition of CustomizableWidgets) {
+ this.createBuiltinWidget(widgetDefinition);
+ }
+ },
+
+ _introduceNewBuiltinWidgets() {
+ // We should still enter even if gSavedState.currentVersion >= kVersion
+ // because the per-widget pref facility is independent of versioning.
+ if (!gSavedState) {
+ // Flip all the prefs so we don't try to re-introduce later:
+ for (let [, widget] of gPalette) {
+ if (widget.defaultArea && widget._introducedInVersion === "pref") {
+ let prefId = "browser.toolbarbuttons.introduced." + widget.id;
+ Services.prefs.setBoolPref(prefId, true);
+ }
+ }
+ return;
+ }
+
+ let currentVersion = gSavedState.currentVersion;
+ for (let [id, widget] of gPalette) {
+ if (widget.defaultArea) {
+ let shouldAdd = false;
+ let shouldSetPref = false;
+ let prefId = "browser.toolbarbuttons.introduced." + widget.id;
+ if (widget._introducedInVersion === "pref") {
+ try {
+ shouldAdd = !Services.prefs.getBoolPref(prefId);
+ } catch (ex) {
+ // Pref doesn't exist:
+ shouldAdd = true;
+ }
+ shouldSetPref = shouldAdd;
+ } else if (widget._introducedInVersion > currentVersion) {
+ shouldAdd = true;
+ }
+
+ if (shouldAdd) {
+ let futurePlacements = gFuturePlacements.get(widget.defaultArea);
+ if (futurePlacements) {
+ futurePlacements.add(id);
+ } else {
+ gFuturePlacements.set(widget.defaultArea, new Set([id]));
+ }
+ if (shouldSetPref) {
+ Services.prefs.setBoolPref(prefId, true);
+ }
+ }
+ }
+ }
+
+ if (currentVersion < 2) {
+ // Nuke the old 'loop-call-button' out of orbit.
+ CustomizableUI.removeWidgetFromArea("loop-call-button");
+ }
+
+ if (currentVersion < 4) {
+ CustomizableUI.removeWidgetFromArea("loop-button-throttled");
+ }
+ },
+
+ /**
+ * _markObsoleteBuiltinButtonsSeen
+ * when upgrading, ensure obsoleted buttons are in seen state.
+ */
+ _markObsoleteBuiltinButtonsSeen() {
+ if (!gSavedState)
+ return;
+ let currentVersion = gSavedState.currentVersion;
+ if (currentVersion >= kVersion)
+ return;
+ // we're upgrading, update state if necessary
+ for (let id in ObsoleteBuiltinButtons) {
+ let version = ObsoleteBuiltinButtons[id]
+ if (version == kVersion) {
+ gSeenWidgets.add(id);
+ gDirty = true;
+ }
+ }
+ },
+
+ _placeNewDefaultWidgetsInArea(aArea) {
+ let futurePlacedWidgets = gFuturePlacements.get(aArea);
+ let savedPlacements = gSavedState && gSavedState.placements && gSavedState.placements[aArea];
+ let defaultPlacements = gAreas.get(aArea).get("defaultPlacements");
+ if (!savedPlacements || !savedPlacements.length || !futurePlacedWidgets || !defaultPlacements ||
+ !defaultPlacements.length) {
+ return;
+ }
+ let defaultWidgetIndex = -1;
+
+ for (let widgetId of futurePlacedWidgets) {
+ let widget = gPalette.get(widgetId);
+ if (!widget || widget.source !== CustomizableUI.SOURCE_BUILTIN ||
+ !widget.defaultArea || !widget._introducedInVersion ||
+ savedPlacements.indexOf(widget.id) !== -1) {
+ continue;
+ }
+ defaultWidgetIndex = defaultPlacements.indexOf(widget.id);
+ if (defaultWidgetIndex === -1) {
+ continue;
+ }
+ // Now we know that this widget should be here by default, was newly introduced,
+ // and we have a saved state to insert into, and a default state to work off of.
+ // Try introducing after widgets that come before it in the default placements:
+ for (let i = defaultWidgetIndex; i >= 0; i--) {
+ // Special case: if the defaults list this widget as coming first, insert at the beginning:
+ if (i === 0 && i === defaultWidgetIndex) {
+ savedPlacements.splice(0, 0, widget.id);
+ // Before you ask, yes, deleting things inside a let x of y loop where y is a Set is
+ // safe, and we won't skip any items.
+ futurePlacedWidgets.delete(widget.id);
+ gDirty = true;
+ break;
+ }
+ // Otherwise, if we're somewhere other than the beginning, check if the previous
+ // widget is in the saved placements.
+ if (i) {
+ let previousWidget = defaultPlacements[i - 1];
+ let previousWidgetIndex = savedPlacements.indexOf(previousWidget);
+ if (previousWidgetIndex != -1) {
+ savedPlacements.splice(previousWidgetIndex + 1, 0, widget.id);
+ futurePlacedWidgets.delete(widget.id);
+ gDirty = true;
+ break;
+ }
+ }
+ }
+ // The loop above either inserts the item or doesn't - either way, we can get away
+ // with doing nothing else now; if the item remains in gFuturePlacements, we'll
+ // add it at the end in restoreStateForArea.
+ }
+ this.saveState();
+ },
+
+ wrapWidget(aWidgetId) {
+ if (gGroupWrapperCache.has(aWidgetId)) {
+ return gGroupWrapperCache.get(aWidgetId);
+ }
+
+ let provider = this.getWidgetProvider(aWidgetId);
+ if (!provider) {
+ return null;
+ }
+
+ if (provider == CustomizableUI.PROVIDER_API) {
+ let widget = gPalette.get(aWidgetId);
+ if (!widget.wrapper) {
+ widget.wrapper = new WidgetGroupWrapper(widget);
+ gGroupWrapperCache.set(aWidgetId, widget.wrapper);
+ }
+ return widget.wrapper;
+ }
+
+ // PROVIDER_SPECIAL gets treated the same as PROVIDER_XUL.
+ let wrapper = new XULWidgetGroupWrapper(aWidgetId);
+ gGroupWrapperCache.set(aWidgetId, wrapper);
+ return wrapper;
+ },
+
+ registerArea(aName, aProperties, aInternalCaller) {
+ if (typeof aName != "string" || !/^[a-z0-9-_]{1,}$/i.test(aName)) {
+ throw new Error("Invalid area name");
+ }
+
+ let areaIsKnown = gAreas.has(aName);
+ let props = areaIsKnown ? gAreas.get(aName) : new Map();
+ const kImmutableProperties = new Set(["type", "legacy", "overflowable"]);
+ for (let key in aProperties) {
+ if (areaIsKnown && kImmutableProperties.has(key) &&
+ props.get(key) != aProperties[key]) {
+ throw new Error("An area cannot change the property for '" + key + "'");
+ }
+ // XXXgijs for special items, we need to make sure they have an appropriate ID
+ // so we aren't perpetually in a non-default state:
+ if (key == "defaultPlacements" && Array.isArray(aProperties[key])) {
+ props.set(key, aProperties[key].map(x => this.isSpecialWidget(x) ? this.ensureSpecialWidgetId(x) : x ));
+ } else {
+ props.set(key, aProperties[key]);
+ }
+ }
+ // Default to a toolbar:
+ if (!props.has("type")) {
+ props.set("type", CustomizableUI.TYPE_TOOLBAR);
+ }
+ if (props.get("type") == CustomizableUI.TYPE_TOOLBAR) {
+ // Check aProperties instead of props because this check is only interested
+ // in the passed arguments, not the state of a potentially pre-existing area.
+ if (!aInternalCaller && aProperties["defaultCollapsed"]) {
+ throw new Error("defaultCollapsed is only allowed for default toolbars.")
+ }
+ if (!props.has("defaultCollapsed")) {
+ props.set("defaultCollapsed", true);
+ }
+ } else if (props.has("defaultCollapsed")) {
+ throw new Error("defaultCollapsed only applies for TYPE_TOOLBAR areas.");
+ }
+ // Sanity check type:
+ let allTypes = [CustomizableUI.TYPE_TOOLBAR, CustomizableUI.TYPE_MENU_PANEL];
+ if (allTypes.indexOf(props.get("type")) == -1) {
+ throw new Error("Invalid area type " + props.get("type"));
+ }
+
+ // And to no placements:
+ if (!props.has("defaultPlacements")) {
+ props.set("defaultPlacements", []);
+ }
+ // Sanity check default placements array:
+ if (!Array.isArray(props.get("defaultPlacements"))) {
+ throw new Error("Should provide an array of default placements");
+ }
+
+ if (!areaIsKnown) {
+ gAreas.set(aName, props);
+
+ // Reconcile new default widgets. Have to do this before we start restoring things.
+ this._placeNewDefaultWidgetsInArea(aName);
+
+ if (props.get("legacy") && !gPlacements.has(aName)) {
+ // Guarantee this area exists in gFuturePlacements, to avoid checking it in
+ // various places elsewhere.
+ if (!gFuturePlacements.has(aName)) {
+ gFuturePlacements.set(aName, new Set());
+ }
+ } else {
+ this.restoreStateForArea(aName);
+ }
+
+ // If we have pending build area nodes, register all of them
+ if (gPendingBuildAreas.has(aName)) {
+ let pendingNodes = gPendingBuildAreas.get(aName);
+ for (let [pendingNode, existingChildren] of pendingNodes) {
+ this.registerToolbarNode(pendingNode, existingChildren);
+ }
+ gPendingBuildAreas.delete(aName);
+ }
+ }
+ },
+
+ unregisterArea(aName, aDestroyPlacements) {
+ if (typeof aName != "string" || !/^[a-z0-9-_]{1,}$/i.test(aName)) {
+ throw new Error("Invalid area name");
+ }
+ if (!gAreas.has(aName) && !gPlacements.has(aName)) {
+ throw new Error("Area not registered");
+ }
+
+ // Move all the widgets out
+ this.beginBatchUpdate();
+ try {
+ let placements = gPlacements.get(aName);
+ if (placements) {
+ // Need to clone this array so removeWidgetFromArea doesn't modify it
+ placements = [...placements];
+ placements.forEach(this.removeWidgetFromArea, this);
+ }
+
+ // Delete all remaining traces.
+ gAreas.delete(aName);
+ // Only destroy placements when necessary:
+ if (aDestroyPlacements) {
+ gPlacements.delete(aName);
+ } else {
+ // Otherwise we need to re-set them, as removeFromArea will have emptied
+ // them out:
+ gPlacements.set(aName, placements);
+ }
+ gFuturePlacements.delete(aName);
+ let existingAreaNodes = gBuildAreas.get(aName);
+ if (existingAreaNodes) {
+ for (let areaNode of existingAreaNodes) {
+ this.notifyListeners("onAreaNodeUnregistered", aName, areaNode.customizationTarget,
+ CustomizableUI.REASON_AREA_UNREGISTERED);
+ }
+ }
+ gBuildAreas.delete(aName);
+ } finally {
+ this.endBatchUpdate(true);
+ }
+ },
+
+ registerToolbarNode(aToolbar, aExistingChildren) {
+ let area = aToolbar.id;
+ if (gBuildAreas.has(area) && gBuildAreas.get(area).has(aToolbar)) {
+ return;
+ }
+ let areaProperties = gAreas.get(area);
+
+ // If this area is not registered, try to do it automatically:
+ if (!areaProperties) {
+ // If there's no defaultset attribute and this isn't a legacy extra toolbar,
+ // we assume that we should wait for registerArea to be called:
+ if (!aToolbar.hasAttribute("defaultset") &&
+ !aToolbar.hasAttribute("customindex")) {
+ if (!gPendingBuildAreas.has(area)) {
+ gPendingBuildAreas.set(area, new Map());
+ }
+ let pendingNodes = gPendingBuildAreas.get(area);
+ pendingNodes.set(aToolbar, aExistingChildren);
+ return;
+ }
+ let props = {type: CustomizableUI.TYPE_TOOLBAR, legacy: true};
+ let defaultsetAttribute = aToolbar.getAttribute("defaultset") || "";
+ props.defaultPlacements = defaultsetAttribute.split(",").filter(s => s);
+ this.registerArea(area, props);
+ areaProperties = gAreas.get(area);
+ }
+
+ this.beginBatchUpdate();
+ try {
+ let placements = gPlacements.get(area);
+ if (!placements && areaProperties.has("legacy")) {
+ let legacyState = aToolbar.getAttribute("currentset");
+ if (legacyState) {
+ legacyState = legacyState.split(",").filter(s => s);
+ }
+
+ // Manually restore the state here, so the legacy state can be converted.
+ this.restoreStateForArea(area, legacyState);
+ placements = gPlacements.get(area);
+ }
+
+ // Check that the current children and the current placements match. If
+ // not, mark it as dirty:
+ if (aExistingChildren.length != placements.length ||
+ aExistingChildren.every((id, i) => id == placements[i])) {
+ gDirtyAreaCache.add(area);
+ }
+
+ if (areaProperties.has("overflowable")) {
+ aToolbar.overflowable = new OverflowableToolbar(aToolbar);
+ }
+
+ this.registerBuildArea(area, aToolbar);
+
+ // We only build the toolbar if it's been marked as "dirty". Dirty means
+ // one of the following things:
+ // 1) Items have been added, moved or removed from this toolbar before.
+ // 2) The number of children of the toolbar does not match the length of
+ // the placements array for that area.
+ //
+ // This notion of being "dirty" is stored in a cache which is persisted
+ // in the saved state.
+ if (gDirtyAreaCache.has(area)) {
+ this.buildArea(area, placements, aToolbar);
+ }
+ this.notifyListeners("onAreaNodeRegistered", area, aToolbar.customizationTarget);
+ aToolbar.setAttribute("currentset", placements.join(","));
+ } finally {
+ this.endBatchUpdate();
+ }
+ },
+
+ buildArea(aArea, aPlacements, aAreaNode) {
+ let document = aAreaNode.ownerDocument;
+ let window = document.defaultView;
+ let inPrivateWindow = PrivateBrowsingUtils.isWindowPrivate(window);
+ let container = aAreaNode.customizationTarget;
+ let areaIsPanel = gAreas.get(aArea).get("type") == CustomizableUI.TYPE_MENU_PANEL;
+
+ if (!container) {
+ throw new Error("Expected area " + aArea
+ + " to have a customizationTarget attribute.");
+ }
+
+ // Restore nav-bar visibility since it may have been hidden
+ // through a migration path (bug 938980) or an add-on.
+ if (aArea == CustomizableUI.AREA_NAVBAR) {
+ aAreaNode.collapsed = false;
+ }
+
+ this.beginBatchUpdate();
+
+ try {
+ let currentNode = container.firstChild;
+ let placementsToRemove = new Set();
+ for (let id of aPlacements) {
+ while (currentNode && currentNode.getAttribute("skipintoolbarset") == "true") {
+ currentNode = currentNode.nextSibling;
+ }
+
+ if (currentNode && currentNode.id == id) {
+ currentNode = currentNode.nextSibling;
+ continue;
+ }
+
+ if (this.isSpecialWidget(id) && areaIsPanel) {
+ placementsToRemove.add(id);
+ continue;
+ }
+
+ let [provider, node] = this.getWidgetNode(id, window);
+ if (!node) {
+ log.debug("Unknown widget: " + id);
+ continue;
+ }
+
+ let widget = null;
+ // If the placements have items in them which are (now) no longer removable,
+ // we shouldn't be moving them:
+ if (provider == CustomizableUI.PROVIDER_API) {
+ widget = gPalette.get(id);
+ if (!widget.removable && aArea != widget.defaultArea) {
+ placementsToRemove.add(id);
+ continue;
+ }
+ } else if (provider == CustomizableUI.PROVIDER_XUL &&
+ node.parentNode != container && !this.isWidgetRemovable(node)) {
+ placementsToRemove.add(id);
+ continue;
+ } // Special widgets are always removable, so no need to check them
+
+ if (inPrivateWindow && widget && !widget.showInPrivateBrowsing) {
+ continue;
+ }
+
+ this.ensureButtonContextMenu(node, aAreaNode);
+ if (node.localName == "toolbarbutton") {
+ if (areaIsPanel) {
+ node.setAttribute("wrap", "true");
+ } else {
+ node.removeAttribute("wrap");
+ }
+ }
+
+ // This needs updating in case we're resetting / undoing a reset.
+ if (widget) {
+ widget.currentArea = aArea;
+ }
+ this.insertWidgetBefore(node, currentNode, container, aArea);
+ if (gResetting) {
+ this.notifyListeners("onWidgetReset", node, container);
+ } else if (gUndoResetting) {
+ this.notifyListeners("onWidgetUndoMove", node, container);
+ }
+ }
+
+ if (currentNode) {
+ let palette = aAreaNode.toolbox ? aAreaNode.toolbox.palette : null;
+ let limit = currentNode.previousSibling;
+ let node = container.lastChild;
+ while (node && node != limit) {
+ let previousSibling = node.previousSibling;
+ // Nodes opt-in to removability. If they're removable, and we haven't
+ // seen them in the placements array, then we toss them into the palette
+ // if one exists. If no palette exists, we just remove the node. If the
+ // node is not removable, we leave it where it is. However, we can only
+ // safely touch elements that have an ID - both because we depend on
+ // IDs, and because such elements are not intended to be widgets
+ // (eg, titlebar-placeholder elements).
+ if (node.id && node.getAttribute("skipintoolbarset") != "true") {
+ if (this.isWidgetRemovable(node)) {
+ if (palette && !this.isSpecialWidget(node.id)) {
+ palette.appendChild(node);
+ this.removeLocationAttributes(node);
+ } else {
+ container.removeChild(node);
+ }
+ } else {
+ node.setAttribute("removable", false);
+ log.debug("Adding non-removable widget to placements of " + aArea + ": " +
+ node.id);
+ gPlacements.get(aArea).push(node.id);
+ gDirty = true;
+ }
+ }
+ node = previousSibling;
+ }
+ }
+
+ // If there are placements in here which aren't removable from their original area,
+ // we remove them from this area's placement array. They will (have) be(en) added
+ // to their original area's placements array in the block above this one.
+ if (placementsToRemove.size) {
+ let placementAry = gPlacements.get(aArea);
+ for (let id of placementsToRemove) {
+ let index = placementAry.indexOf(id);
+ placementAry.splice(index, 1);
+ }
+ }
+
+ if (gResetting) {
+ this.notifyListeners("onAreaReset", aArea, container);
+ }
+ } finally {
+ this.endBatchUpdate();
+ }
+ },
+
+ addPanelCloseListeners(aPanel) {
+ gELS.addSystemEventListener(aPanel, "click", this, false);
+ gELS.addSystemEventListener(aPanel, "keypress", this, false);
+ let win = aPanel.ownerGlobal;
+ if (!gPanelsForWindow.has(win)) {
+ gPanelsForWindow.set(win, new Set());
+ }
+ gPanelsForWindow.get(win).add(this._getPanelForNode(aPanel));
+ },
+
+ removePanelCloseListeners(aPanel) {
+ gELS.removeSystemEventListener(aPanel, "click", this, false);
+ gELS.removeSystemEventListener(aPanel, "keypress", this, false);
+ let win = aPanel.ownerGlobal;
+ let panels = gPanelsForWindow.get(win);
+ if (panels) {
+ panels.delete(this._getPanelForNode(aPanel));
+ }
+ },
+
+ ensureButtonContextMenu(aNode, aAreaNode) {
+ const kPanelItemContextMenu = "customizationPanelItemContextMenu";
+
+ let currentContextMenu = aNode.getAttribute("context") ||
+ aNode.getAttribute("contextmenu");
+ let place = CustomizableUI.getPlaceForItem(aAreaNode);
+ let contextMenuForPlace = place == "panel" ?
+ kPanelItemContextMenu :
+ null;
+ if (contextMenuForPlace && !currentContextMenu) {
+ aNode.setAttribute("context", contextMenuForPlace);
+ } else if (currentContextMenu == kPanelItemContextMenu &&
+ contextMenuForPlace != kPanelItemContextMenu) {
+ aNode.removeAttribute("context");
+ aNode.removeAttribute("contextmenu");
+ }
+ },
+
+ getWidgetProvider(aWidgetId) {
+ if (this.isSpecialWidget(aWidgetId)) {
+ return CustomizableUI.PROVIDER_SPECIAL;
+ }
+ if (gPalette.has(aWidgetId)) {
+ return CustomizableUI.PROVIDER_API;
+ }
+ // If this was an API widget that was destroyed, return null:
+ if (gSeenWidgets.has(aWidgetId)) {
+ return null;
+ }
+
+ // We fall back to the XUL provider, but we don't know for sure (at this
+ // point) whether it exists there either. So the API is technically lying.
+ // Ideally, it would be able to return an error value (or throw an
+ // exception) if it really didn't exist. Our code calling this function
+ // handles that fine, but this is a public API.
+ return CustomizableUI.PROVIDER_XUL;
+ },
+
+ getWidgetNode(aWidgetId, aWindow) {
+ let document = aWindow.document;
+
+ if (this.isSpecialWidget(aWidgetId)) {
+ let widgetNode = document.getElementById(aWidgetId) ||
+ this.createSpecialWidget(aWidgetId, document);
+ return [ CustomizableUI.PROVIDER_SPECIAL, widgetNode];
+ }
+
+ let widget = gPalette.get(aWidgetId);
+ if (widget) {
+ // If we have an instance of this widget already, just use that.
+ if (widget.instances.has(document)) {
+ log.debug("An instance of widget " + aWidgetId + " already exists in this "
+ + "document. Reusing.");
+ return [ CustomizableUI.PROVIDER_API,
+ widget.instances.get(document) ];
+ }
+
+ return [ CustomizableUI.PROVIDER_API,
+ this.buildWidget(document, widget) ];
+ }
+
+ log.debug("Searching for " + aWidgetId + " in toolbox.");
+ let node = this.findWidgetInWindow(aWidgetId, aWindow);
+ if (node) {
+ return [ CustomizableUI.PROVIDER_XUL, node ];
+ }
+
+ log.debug("No node for " + aWidgetId + " found.");
+ return [null, null];
+ },
+
+ registerMenuPanel(aPanelContents) {
+ if (gBuildAreas.has(CustomizableUI.AREA_PANEL) &&
+ gBuildAreas.get(CustomizableUI.AREA_PANEL).has(aPanelContents)) {
+ return;
+ }
+
+ let document = aPanelContents.ownerDocument;
+
+ aPanelContents.toolbox = document.getElementById("navigator-toolbox");
+ aPanelContents.customizationTarget = aPanelContents;
+
+ this.addPanelCloseListeners(this._getPanelForNode(aPanelContents));
+
+ let placements = gPlacements.get(CustomizableUI.AREA_PANEL);
+ this.buildArea(CustomizableUI.AREA_PANEL, placements, aPanelContents);
+ this.notifyListeners("onAreaNodeRegistered", CustomizableUI.AREA_PANEL, aPanelContents);
+
+ for (let child of aPanelContents.children) {
+ if (child.localName != "toolbarbutton") {
+ if (child.localName == "toolbaritem") {
+ this.ensureButtonContextMenu(child, aPanelContents);
+ }
+ continue;
+ }
+ this.ensureButtonContextMenu(child, aPanelContents);
+ child.setAttribute("wrap", "true");
+ }
+
+ this.registerBuildArea(CustomizableUI.AREA_PANEL, aPanelContents);
+ },
+
+ onWidgetAdded(aWidgetId, aArea, aPosition) {
+ this.insertNode(aWidgetId, aArea, aPosition, true);
+
+ if (!gResetting) {
+ this._clearPreviousUIState();
+ }
+ },
+
+ onWidgetRemoved(aWidgetId, aArea) {
+ let areaNodes = gBuildAreas.get(aArea);
+ if (!areaNodes) {
+ return;
+ }
+
+ let area = gAreas.get(aArea);
+ let isToolbar = area.get("type") == CustomizableUI.TYPE_TOOLBAR;
+ let isOverflowable = isToolbar && area.get("overflowable");
+ let showInPrivateBrowsing = gPalette.has(aWidgetId)
+ ? gPalette.get(aWidgetId).showInPrivateBrowsing
+ : true;
+
+ for (let areaNode of areaNodes) {
+ let window = areaNode.ownerGlobal;
+ if (!showInPrivateBrowsing &&
+ PrivateBrowsingUtils.isWindowPrivate(window)) {
+ continue;
+ }
+
+ let container = areaNode.customizationTarget;
+ let widgetNode = window.document.getElementById(aWidgetId);
+ if (widgetNode && isOverflowable) {
+ container = areaNode.overflowable.getContainerFor(widgetNode);
+ }
+
+ if (!widgetNode || !container.contains(widgetNode)) {
+ log.info("Widget " + aWidgetId + " not found, unable to remove from " + aArea);
+ continue;
+ }
+
+ this.notifyListeners("onWidgetBeforeDOMChange", widgetNode, null, container, true);
+
+ // We remove location attributes here to make sure they're gone too when a
+ // widget is removed from a toolbar to the palette. See bug 930950.
+ this.removeLocationAttributes(widgetNode);
+ // We also need to remove the panel context menu if it's there:
+ this.ensureButtonContextMenu(widgetNode);
+ widgetNode.removeAttribute("wrap");
+ if (gPalette.has(aWidgetId) || this.isSpecialWidget(aWidgetId)) {
+ container.removeChild(widgetNode);
+ } else {
+ areaNode.toolbox.palette.appendChild(widgetNode);
+ }
+ this.notifyListeners("onWidgetAfterDOMChange", widgetNode, null, container, true);
+
+ if (isToolbar) {
+ areaNode.setAttribute("currentset", gPlacements.get(aArea).join(","));
+ }
+
+ let windowCache = gSingleWrapperCache.get(window);
+ if (windowCache) {
+ windowCache.delete(aWidgetId);
+ }
+ }
+ if (!gResetting) {
+ this._clearPreviousUIState();
+ }
+ },
+
+ onWidgetMoved(aWidgetId, aArea, aOldPosition, aNewPosition) {
+ this.insertNode(aWidgetId, aArea, aNewPosition);
+ if (!gResetting) {
+ this._clearPreviousUIState();
+ }
+ },
+
+ onCustomizeEnd(aWindow) {
+ this._clearPreviousUIState();
+ },
+
+ registerBuildArea(aArea, aNode) {
+ // We ensure that the window is registered to have its customization data
+ // cleaned up when unloading.
+ let window = aNode.ownerGlobal;
+ if (window.closed) {
+ return;
+ }
+ this.registerBuildWindow(window);
+
+ // Also register this build area's toolbox.
+ if (aNode.toolbox) {
+ gBuildWindows.get(window).add(aNode.toolbox);
+ }
+
+ if (!gBuildAreas.has(aArea)) {
+ gBuildAreas.set(aArea, new Set());
+ }
+
+ gBuildAreas.get(aArea).add(aNode);
+
+ // Give a class to all customize targets to be used for styling in Customize Mode
+ let customizableNode = this.getCustomizeTargetForArea(aArea, window);
+ customizableNode.classList.add("customization-target");
+ },
+
+ registerBuildWindow(aWindow) {
+ if (!gBuildWindows.has(aWindow)) {
+ gBuildWindows.set(aWindow, new Set());
+
+ aWindow.addEventListener("unload", this);
+ aWindow.addEventListener("command", this, true);
+
+ this.notifyListeners("onWindowOpened", aWindow);
+ }
+ },
+
+ unregisterBuildWindow(aWindow) {
+ aWindow.removeEventListener("unload", this);
+ aWindow.removeEventListener("command", this, true);
+ gPanelsForWindow.delete(aWindow);
+ gBuildWindows.delete(aWindow);
+ gSingleWrapperCache.delete(aWindow);
+ let document = aWindow.document;
+
+ for (let [areaId, areaNodes] of gBuildAreas) {
+ let areaProperties = gAreas.get(areaId);
+ for (let node of areaNodes) {
+ if (node.ownerDocument == document) {
+ this.notifyListeners("onAreaNodeUnregistered", areaId, node.customizationTarget,
+ CustomizableUI.REASON_WINDOW_CLOSED);
+ if (areaProperties.has("overflowable")) {
+ node.overflowable.uninit();
+ node.overflowable = null;
+ }
+ areaNodes.delete(node);
+ }
+ }
+ }
+
+ for (let [, widget] of gPalette) {
+ widget.instances.delete(document);
+ this.notifyListeners("onWidgetInstanceRemoved", widget.id, document);
+ }
+
+ for (let [, areaMap] of gPendingBuildAreas) {
+ let toDelete = [];
+ for (let [areaNode, ] of areaMap) {
+ if (areaNode.ownerDocument == document) {
+ toDelete.push(areaNode);
+ }
+ }
+ for (let areaNode of toDelete) {
+ areaMap.delete(areaNode);
+ }
+ }
+
+ this.notifyListeners("onWindowClosed", aWindow);
+ },
+
+ setLocationAttributes(aNode, aArea) {
+ let props = gAreas.get(aArea);
+ if (!props) {
+ throw new Error("Expected area " + aArea + " to have a properties Map " +
+ "associated with it.");
+ }
+
+ aNode.setAttribute("cui-areatype", props.get("type") || "");
+ let anchor = props.get("anchor");
+ if (anchor) {
+ aNode.setAttribute("cui-anchorid", anchor);
+ } else {
+ aNode.removeAttribute("cui-anchorid");
+ }
+ },
+
+ removeLocationAttributes(aNode) {
+ aNode.removeAttribute("cui-areatype");
+ aNode.removeAttribute("cui-anchorid");
+ },
+
+ insertNode(aWidgetId, aArea, aPosition, isNew) {
+ let areaNodes = gBuildAreas.get(aArea);
+ if (!areaNodes) {
+ return;
+ }
+
+ let placements = gPlacements.get(aArea);
+ if (!placements) {
+ log.error("Could not find any placements for " + aArea +
+ " when moving a widget.");
+ return;
+ }
+
+ // Go through each of the nodes associated with this area and move the
+ // widget to the requested location.
+ for (let areaNode of areaNodes) {
+ this.insertNodeInWindow(aWidgetId, areaNode, isNew);
+ }
+ },
+
+ insertNodeInWindow(aWidgetId, aAreaNode, isNew) {
+ let window = aAreaNode.ownerGlobal;
+ let showInPrivateBrowsing = gPalette.has(aWidgetId)
+ ? gPalette.get(aWidgetId).showInPrivateBrowsing
+ : true;
+
+ if (!showInPrivateBrowsing && PrivateBrowsingUtils.isWindowPrivate(window)) {
+ return;
+ }
+
+ let [, widgetNode] = this.getWidgetNode(aWidgetId, window);
+ if (!widgetNode) {
+ log.error("Widget '" + aWidgetId + "' not found, unable to move");
+ return;
+ }
+
+ let areaId = aAreaNode.id;
+ if (isNew) {
+ this.ensureButtonContextMenu(widgetNode, aAreaNode);
+ if (widgetNode.localName == "toolbarbutton" && areaId == CustomizableUI.AREA_PANEL) {
+ widgetNode.setAttribute("wrap", "true");
+ }
+ }
+
+ let [insertionContainer, nextNode] = this.findInsertionPoints(widgetNode, aAreaNode);
+ this.insertWidgetBefore(widgetNode, nextNode, insertionContainer, areaId);
+
+ if (gAreas.get(areaId).get("type") == CustomizableUI.TYPE_TOOLBAR) {
+ aAreaNode.setAttribute("currentset", gPlacements.get(areaId).join(","));
+ }
+ },
+
+ findInsertionPoints(aNode, aAreaNode) {
+ let areaId = aAreaNode.id;
+ let props = gAreas.get(areaId);
+
+ // For overflowable toolbars, rely on them (because the work is more complicated):
+ if (props.get("type") == CustomizableUI.TYPE_TOOLBAR && props.get("overflowable")) {
+ return aAreaNode.overflowable.findOverflowedInsertionPoints(aNode);
+ }
+
+ let container = aAreaNode.customizationTarget;
+ let placements = gPlacements.get(areaId);
+ let nodeIndex = placements.indexOf(aNode.id);
+
+ while (++nodeIndex < placements.length) {
+ let nextNodeId = placements[nodeIndex];
+ let nextNode = container.getElementsByAttribute("id", nextNodeId).item(0);
+
+ if (nextNode) {
+ return [container, nextNode];
+ }
+ }
+
+ return [container, null];
+ },
+
+ insertWidgetBefore(aNode, aNextNode, aContainer, aArea) {
+ this.notifyListeners("onWidgetBeforeDOMChange", aNode, aNextNode, aContainer);
+ this.setLocationAttributes(aNode, aArea);
+ aContainer.insertBefore(aNode, aNextNode);
+ this.notifyListeners("onWidgetAfterDOMChange", aNode, aNextNode, aContainer);
+ },
+
+ handleEvent(aEvent) {
+ switch (aEvent.type) {
+ case "command":
+ if (!this._originalEventInPanel(aEvent)) {
+ break;
+ }
+ aEvent = aEvent.sourceEvent;
+ // Fall through
+ case "click":
+ case "keypress":
+ this.maybeAutoHidePanel(aEvent);
+ break;
+ case "unload":
+ this.unregisterBuildWindow(aEvent.currentTarget);
+ break;
+ }
+ },
+
+ _originalEventInPanel(aEvent) {
+ let e = aEvent.sourceEvent;
+ if (!e) {
+ return false;
+ }
+ let node = this._getPanelForNode(e.target);
+ if (!node) {
+ return false;
+ }
+ let win = e.view;
+ let panels = gPanelsForWindow.get(win);
+ return !!panels && panels.has(node);
+ },
+
+ isSpecialWidget(aId) {
+ return (aId.startsWith(kSpecialWidgetPfx) ||
+ aId.startsWith("separator") ||
+ aId.startsWith("spring") ||
+ aId.startsWith("spacer"));
+ },
+
+ ensureSpecialWidgetId(aId) {
+ let nodeType = aId.match(/spring|spacer|separator/)[0];
+ // If the ID we were passed isn't a generated one, generate one now:
+ if (nodeType == aId) {
+ // Ids are differentiated through a unique count suffix.
+ return kSpecialWidgetPfx + aId + (++gNewElementCount);
+ }
+ return aId;
+ },
+
+ createSpecialWidget(aId, aDocument) {
+ let nodeName = "toolbar" + aId.match(/spring|spacer|separator/)[0];
+ let node = aDocument.createElementNS(kNSXUL, nodeName);
+ node.id = this.ensureSpecialWidgetId(aId);
+ if (nodeName == "toolbarspring") {
+ node.flex = 1;
+ }
+ return node;
+ },
+
+ /* Find a XUL-provided widget in a window. Don't try to use this
+ * for an API-provided widget or a special widget.
+ */
+ findWidgetInWindow(aId, aWindow) {
+ if (!gBuildWindows.has(aWindow)) {
+ throw new Error("Build window not registered");
+ }
+
+ if (!aId) {
+ log.error("findWidgetInWindow was passed an empty string.");
+ return null;
+ }
+
+ let document = aWindow.document;
+
+ // look for a node with the same id, as the node may be
+ // in a different toolbar.
+ let node = document.getElementById(aId);
+ if (node) {
+ let parent = node.parentNode;
+ while (parent && !(parent.customizationTarget ||
+ parent == aWindow.gNavToolbox.palette)) {
+ parent = parent.parentNode;
+ }
+
+ if (parent) {
+ let nodeInArea = node.parentNode.localName == "toolbarpaletteitem" ?
+ node.parentNode : node;
+ // Check if we're in a customization target, or in the palette:
+ if ((parent.customizationTarget == nodeInArea.parentNode &&
+ gBuildWindows.get(aWindow).has(parent.toolbox)) ||
+ aWindow.gNavToolbox.palette == nodeInArea.parentNode) {
+ // Normalize the removable attribute. For backwards compat, if
+ // the widget is not located in a toolbox palette then absence
+ // of the "removable" attribute means it is not removable.
+ if (!node.hasAttribute("removable")) {
+ // If we first see this in customization mode, it may be in the
+ // customization palette instead of the toolbox palette.
+ node.setAttribute("removable", !parent.customizationTarget);
+ }
+ return node;
+ }
+ }
+ }
+
+ let toolboxes = gBuildWindows.get(aWindow);
+ for (let toolbox of toolboxes) {
+ if (toolbox.palette) {
+ // Attempt to locate an element with a matching ID within
+ // the palette.
+ let element = toolbox.palette.getElementsByAttribute("id", aId)[0];
+ if (element) {
+ // Normalize the removable attribute. For backwards compat, this
+ // is optional if the widget is located in the toolbox palette,
+ // and defaults to *true*, unlike if it was located elsewhere.
+ if (!element.hasAttribute("removable")) {
+ element.setAttribute("removable", true);
+ }
+ return element;
+ }
+ }
+ }
+ return null;
+ },
+
+ buildWidget(aDocument, aWidget) {
+ if (aDocument.documentURI != kExpectedWindowURL) {
+ throw new Error("buildWidget was called for a non-browser window!");
+ }
+ if (typeof aWidget == "string") {
+ aWidget = gPalette.get(aWidget);
+ }
+ if (!aWidget) {
+ throw new Error("buildWidget was passed a non-widget to build.");
+ }
+
+ log.debug("Building " + aWidget.id + " of type " + aWidget.type);
+
+ let node;
+ if (aWidget.type == "custom") {
+ if (aWidget.onBuild) {
+ node = aWidget.onBuild(aDocument);
+ }
+ if (!node || !(node instanceof aDocument.defaultView.XULElement))
+ log.error("Custom widget with id " + aWidget.id + " does not return a valid node");
+ } else {
+ if (aWidget.onBeforeCreated) {
+ aWidget.onBeforeCreated(aDocument);
+ }
+ node = aDocument.createElementNS(kNSXUL, "toolbarbutton");
+
+ node.setAttribute("id", aWidget.id);
+ node.setAttribute("widget-id", aWidget.id);
+ node.setAttribute("widget-type", aWidget.type);
+ if (aWidget.disabled) {
+ node.setAttribute("disabled", true);
+ }
+ node.setAttribute("removable", aWidget.removable);
+ node.setAttribute("overflows", aWidget.overflows);
+ if (aWidget.tabSpecific) {
+ node.setAttribute("tabspecific", aWidget.tabSpecific);
+ }
+ node.setAttribute("label", this.getLocalizedProperty(aWidget, "label"));
+ let additionalTooltipArguments = [];
+ if (aWidget.shortcutId) {
+ let keyEl = aDocument.getElementById(aWidget.shortcutId);
+ if (keyEl) {
+ additionalTooltipArguments.push(ShortcutUtils.prettifyShortcut(keyEl));
+ } else {
+ log.error("Key element with id '" + aWidget.shortcutId + "' for widget '" + aWidget.id +
+ "' not found!");
+ }
+ }
+
+ let tooltip = this.getLocalizedProperty(aWidget, "tooltiptext", additionalTooltipArguments);
+ if (tooltip) {
+ node.setAttribute("tooltiptext", tooltip);
+ }
+ node.setAttribute("class", "toolbarbutton-1 chromeclass-toolbar-additional");
+
+ let commandHandler = this.handleWidgetCommand.bind(this, aWidget, node);
+ node.addEventListener("command", commandHandler);
+ let clickHandler = this.handleWidgetClick.bind(this, aWidget, node);
+ node.addEventListener("click", clickHandler);
+
+ // If the widget has a view, and has view showing / hiding listeners,
+ // hook those up to this widget.
+ if (aWidget.type == "view") {
+ log.debug("Widget " + aWidget.id + " has a view. Auto-registering event handlers.");
+ let viewNode = aDocument.getElementById(aWidget.viewId);
+
+ if (viewNode) {
+ // PanelUI relies on the .PanelUI-subView class to be able to show only
+ // one sub-view at a time.
+ viewNode.classList.add("PanelUI-subView");
+
+ for (let eventName of kSubviewEvents) {
+ let handler = "on" + eventName;
+ if (typeof aWidget[handler] == "function") {
+ viewNode.addEventListener(eventName, aWidget[handler]);
+ }
+ }
+
+ log.debug("Widget " + aWidget.id + " showing and hiding event handlers set.");
+ } else {
+ log.error("Could not find the view node with id: " + aWidget.viewId +
+ ", for widget: " + aWidget.id + ".");
+ }
+ }
+
+ if (aWidget.onCreated) {
+ aWidget.onCreated(node);
+ }
+ }
+
+ aWidget.instances.set(aDocument, node);
+ return node;
+ },
+
+ getLocalizedProperty(aWidget, aProp, aFormatArgs, aDef) {
+ const kReqStringProps = ["label"];
+
+ if (typeof aWidget == "string") {
+ aWidget = gPalette.get(aWidget);
+ }
+ if (!aWidget) {
+ throw new Error("getLocalizedProperty was passed a non-widget to work with.");
+ }
+ let def, name;
+ // Let widgets pass their own string identifiers or strings, so that
+ // we can use strings which aren't the default (in case string ids change)
+ // and so that non-builtin-widgets can also provide labels, tooltips, etc.
+ if (aWidget[aProp] != null) {
+ name = aWidget[aProp];
+ // By using this as the default, if a widget provides a full string rather
+ // than a string ID for localization, we will fall back to that string
+ // and return that.
+ def = aDef || name;
+ } else {
+ name = aWidget.id + "." + aProp;
+ def = aDef || "";
+ }
+ try {
+ if (Array.isArray(aFormatArgs) && aFormatArgs.length) {
+ return gWidgetsBundle.formatStringFromName(name, aFormatArgs,
+ aFormatArgs.length) || def;
+ }
+ return gWidgetsBundle.GetStringFromName(name) || def;
+ } catch (ex) {
+ // If an empty string was explicitly passed, treat it as an actual
+ // value rather than a missing property.
+ if (!def && (name != "" || kReqStringProps.includes(aProp))) {
+ log.error("Could not localize property '" + name + "'.");
+ }
+ }
+ return def;
+ },
+
+ addShortcut(aShortcutNode, aTargetNode = aShortcutNode) {
+ // Detect if we've already been here before.
+ if (aTargetNode.hasAttribute("shortcut"))
+ return;
+
+ let document = aShortcutNode.ownerDocument;
+ let shortcutId = aShortcutNode.getAttribute("key");
+ let shortcut;
+ if (shortcutId) {
+ shortcut = document.getElementById(shortcutId);
+ } else {
+ let commandId = aShortcutNode.getAttribute("command");
+ if (commandId)
+ shortcut = ShortcutUtils.findShortcut(document.getElementById(commandId));
+ }
+ if (!shortcut) {
+ return;
+ }
+
+ aTargetNode.setAttribute("shortcut", ShortcutUtils.prettifyShortcut(shortcut));
+ },
+
+ handleWidgetCommand(aWidget, aNode, aEvent) {
+ log.debug("handleWidgetCommand");
+
+ if (aWidget.type == "button") {
+ if (aWidget.onCommand) {
+ try {
+ aWidget.onCommand.call(null, aEvent);
+ } catch (e) {
+ log.error(e);
+ }
+ } else {
+ // XXXunf Need to think this through more, and formalize.
+ Services.obs.notifyObservers(aNode,
+ "customizedui-widget-command",
+ aWidget.id);
+ }
+ } else if (aWidget.type == "view") {
+ let ownerWindow = aNode.ownerGlobal;
+ let area = this.getPlacementOfWidget(aNode.id).area;
+ let anchor = aNode;
+ if (area != CustomizableUI.AREA_PANEL) {
+ let wrapper = this.wrapWidget(aWidget.id).forWindow(ownerWindow);
+ if (wrapper && wrapper.anchor) {
+ this.hidePanelForNode(aNode);
+ anchor = wrapper.anchor;
+ }
+ }
+ ownerWindow.PanelUI.showSubView(aWidget.viewId, anchor, area);
+ }
+ },
+
+ handleWidgetClick(aWidget, aNode, aEvent) {
+ log.debug("handleWidgetClick");
+ if (aWidget.onClick) {
+ try {
+ aWidget.onClick.call(null, aEvent);
+ } catch (e) {
+ Cu.reportError(e);
+ }
+ } else {
+ // XXXunf Need to think this through more, and formalize.
+ Services.obs.notifyObservers(aNode, "customizedui-widget-click", aWidget.id);
+ }
+ },
+
+ _getPanelForNode(aNode) {
+ let panel = aNode;
+ while (panel && panel.localName != "panel")
+ panel = panel.parentNode;
+ return panel;
+ },
+
+ /*
+ * If people put things in the panel which need more than single-click interaction,
+ * we don't want to close it. Right now we check for text inputs and menu buttons.
+ * We also check for being outside of any toolbaritem/toolbarbutton, ie on a blank
+ * part of the menu.
+ */
+ _isOnInteractiveElement(aEvent) {
+ function getMenuPopupForDescendant(aNode) {
+ let lastPopup = null;
+ while (aNode && aNode.parentNode &&
+ aNode.parentNode.localName.startsWith("menu")) {
+ lastPopup = aNode.localName == "menupopup" ? aNode : lastPopup;
+ aNode = aNode.parentNode;
+ }
+ return lastPopup;
+ }
+
+ let target = aEvent.originalTarget;
+ let panel = this._getPanelForNode(aEvent.currentTarget);
+ // This can happen in e.g. customize mode. If there's no panel,
+ // there's clearly nothing for us to close; pretend we're interactive.
+ if (!panel) {
+ return true;
+ }
+ // We keep track of:
+ // whether we're in an input container (text field)
+ let inInput = false;
+ // whether we're in a popup/context menu
+ let inMenu = false;
+ // whether we're in a toolbarbutton/toolbaritem
+ let inItem = false;
+ // whether the current menuitem has a valid closemenu attribute
+ let menuitemCloseMenu = "auto";
+ // whether the toolbarbutton/item has a valid closemenu attribute.
+ let closemenu = "auto";
+
+ // While keeping track of that, we go from the original target back up,
+ // to the panel if we have to. We bail as soon as we find an input,
+ // a toolbarbutton/item, or the panel:
+ while (true && target) {
+ // Skip out of iframes etc:
+ if (target.nodeType == target.DOCUMENT_NODE) {
+ if (!target.defaultView) {
+ // Err, we're done.
+ break;
+ }
+ // Cue some voodoo
+ target = target.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebNavigation)
+ .QueryInterface(Ci.nsIDocShell)
+ .chromeEventHandler;
+ if (!target) {
+ break;
+ }
+ }
+ let tagName = target.localName;
+ inInput = tagName == "input" || tagName == "textbox";
+ inItem = tagName == "toolbaritem" || tagName == "toolbarbutton";
+ let isMenuItem = tagName == "menuitem";
+ inMenu = inMenu || isMenuItem;
+ if (inItem && target.hasAttribute("closemenu")) {
+ let closemenuVal = target.getAttribute("closemenu");
+ closemenu = (closemenuVal == "single" || closemenuVal == "none") ?
+ closemenuVal : "auto";
+ }
+
+ if (isMenuItem && target.hasAttribute("closemenu")) {
+ let closemenuVal = target.getAttribute("closemenu");
+ menuitemCloseMenu = (closemenuVal == "single" || closemenuVal == "none") ?
+ closemenuVal : "auto";
+ }
+ // Break out of the loop immediately for disabled items, as we need to
+ // keep the menu open in that case.
+ if (target.getAttribute("disabled") == "true") {
+ return true;
+ }
+
+ // This isn't in the loop condition because we want to break before
+ // changing |target| if any of these conditions are true
+ if (inInput || inItem || target == panel) {
+ break;
+ }
+ // We need specific code for popups: the item on which they were invoked
+ // isn't necessarily in their parentNode chain:
+ if (isMenuItem) {
+ let topmostMenuPopup = getMenuPopupForDescendant(target);
+ target = (topmostMenuPopup && topmostMenuPopup.triggerNode) ||
+ target.parentNode;
+ } else {
+ target = target.parentNode;
+ }
+ }
+
+ // If the user clicked a menu item...
+ if (inMenu) {
+ // We care if we're in an input also,
+ // or if the user specified closemenu!="auto":
+ if (inInput || menuitemCloseMenu != "auto") {
+ return true;
+ }
+ // Otherwise, we're probably fine to close the panel
+ return false;
+ }
+ // If we're not in a menu, and we *are* in a type="menu" toolbarbutton,
+ // we'll now interact with the menu
+ if (inItem && target.getAttribute("type") == "menu") {
+ return true;
+ }
+ // If we're not in a menu, and we *are* in a type="menu-button" toolbarbutton,
+ // it depends whether we're in the dropmarker or the 'real' button:
+ if (inItem && target.getAttribute("type") == "menu-button") {
+ // 'real' button (which has a single action):
+ if (target.getAttribute("anonid") == "button") {
+ return closemenu != "none";
+ }
+ // otherwise, this is the outer button, and the user will now
+ // interact with the menu:
+ return true;
+ }
+ return inInput || !inItem;
+ },
+
+ hidePanelForNode(aNode) {
+ let panel = this._getPanelForNode(aNode);
+ if (panel) {
+ panel.hidePopup();
+ }
+ },
+
+ maybeAutoHidePanel(aEvent) {
+ if (aEvent.type == "keypress") {
+ if (aEvent.keyCode != aEvent.DOM_VK_RETURN) {
+ return;
+ }
+ // If the user hit enter/return, we don't check preventDefault - it makes sense
+ // that this was prevented, but we probably still want to close the panel.
+ // If consumers don't want this to happen, they should specify the closemenu
+ // attribute.
+
+ } else if (aEvent.type != "command") { // mouse events:
+ if (aEvent.defaultPrevented || aEvent.button != 0) {
+ return;
+ }
+ let isInteractive = this._isOnInteractiveElement(aEvent);
+ log.debug("maybeAutoHidePanel: interactive ? " + isInteractive);
+ if (isInteractive) {
+ return;
+ }
+ }
+
+ // We can't use event.target because we might have passed a panelview
+ // anonymous content boundary as well, and so target points to the
+ // panelmultiview in that case. Unfortunately, this means we get
+ // anonymous child nodes instead of the real ones, so looking for the
+ // 'stoooop, don't close me' attributes is more involved.
+ let target = aEvent.originalTarget;
+ let closemenu = "auto";
+ let widgetType = "button";
+ while (target.parentNode && target.localName != "panel") {
+ closemenu = target.getAttribute("closemenu");
+ widgetType = target.getAttribute("widget-type");
+ if (closemenu == "none" || closemenu == "single" ||
+ widgetType == "view") {
+ break;
+ }
+ target = target.parentNode;
+ }
+ if (closemenu == "none" || widgetType == "view") {
+ return;
+ }
+
+ if (closemenu == "single") {
+ let panel = this._getPanelForNode(target);
+ let multiview = panel.querySelector("panelmultiview");
+ if (multiview.showingSubView) {
+ multiview.showMainView();
+ return;
+ }
+ }
+
+ // If we get here, we can actually hide the popup:
+ this.hidePanelForNode(aEvent.target);
+ },
+
+ getUnusedWidgets(aWindowPalette) {
+ let window = aWindowPalette.ownerGlobal;
+ let isWindowPrivate = PrivateBrowsingUtils.isWindowPrivate(window);
+ // We use a Set because there can be overlap between the widgets in
+ // gPalette and the items in the palette, especially after the first
+ // customization, since programmatically generated widgets will remain
+ // in the toolbox palette.
+ let widgets = new Set();
+
+ // It's possible that some widgets have been defined programmatically and
+ // have not been overlayed into the palette. We can find those inside
+ // gPalette.
+ for (let [id, widget] of gPalette) {
+ if (!widget.currentArea) {
+ if (widget.showInPrivateBrowsing || !isWindowPrivate) {
+ widgets.add(id);
+ }
+ }
+ }
+
+ log.debug("Iterating the actual nodes of the window palette");
+ for (let node of aWindowPalette.children) {
+ log.debug("In palette children: " + node.id);
+ if (node.id && !this.getPlacementOfWidget(node.id)) {
+ widgets.add(node.id);
+ }
+ }
+
+ return [...widgets];
+ },
+
+ getPlacementOfWidget(aWidgetId, aOnlyRegistered, aDeadAreas) {
+ if (aOnlyRegistered && !this.widgetExists(aWidgetId)) {
+ return null;
+ }
+
+ for (let [area, placements] of gPlacements) {
+ if (!gAreas.has(area) && !aDeadAreas) {
+ continue;
+ }
+ let index = placements.indexOf(aWidgetId);
+ if (index != -1) {
+ return { area, position: index };
+ }
+ }
+
+ return null;
+ },
+
+ widgetExists(aWidgetId) {
+ if (gPalette.has(aWidgetId) || this.isSpecialWidget(aWidgetId)) {
+ return true;
+ }
+
+ // Destroyed API widgets are in gSeenWidgets, but not in gPalette:
+ if (gSeenWidgets.has(aWidgetId)) {
+ return false;
+ }
+
+ // We're assuming XUL widgets always exist, as it's much harder to check,
+ // and checking would be much more error prone.
+ return true;
+ },
+
+ addWidgetToArea(aWidgetId, aArea, aPosition, aInitialAdd) {
+ if (!gAreas.has(aArea)) {
+ throw new Error("Unknown customization area: " + aArea);
+ }
+
+ // Hack: don't want special widgets in the panel (need to check here as well
+ // as in canWidgetMoveToArea because the menu panel is lazy):
+ if (gAreas.get(aArea).get("type") == CustomizableUI.TYPE_MENU_PANEL &&
+ this.isSpecialWidget(aWidgetId)) {
+ return;
+ }
+
+ // If this is a lazy area that hasn't been restored yet, we can't yet modify
+ // it - would would at least like to add to it. So we keep track of it in
+ // gFuturePlacements, and use that to add it when restoring the area. We
+ // throw away aPosition though, as that can only be bogus if the area hasn't
+ // yet been restorted (caller can't possibly know where its putting the
+ // widget in relation to other widgets).
+ if (this.isAreaLazy(aArea)) {
+ gFuturePlacements.get(aArea).add(aWidgetId);
+ return;
+ }
+
+ if (this.isSpecialWidget(aWidgetId)) {
+ aWidgetId = this.ensureSpecialWidgetId(aWidgetId);
+ }
+
+ let oldPlacement = this.getPlacementOfWidget(aWidgetId, false, true);
+ if (oldPlacement && oldPlacement.area == aArea) {
+ this.moveWidgetWithinArea(aWidgetId, aPosition);
+ return;
+ }
+
+ // Do nothing if the widget is not allowed to move to the target area.
+ if (!this.canWidgetMoveToArea(aWidgetId, aArea)) {
+ return;
+ }
+
+ if (oldPlacement) {
+ this.removeWidgetFromArea(aWidgetId);
+ }
+
+ if (!gPlacements.has(aArea)) {
+ gPlacements.set(aArea, [aWidgetId]);
+ aPosition = 0;
+ } else {
+ let placements = gPlacements.get(aArea);
+ if (typeof aPosition != "number") {
+ aPosition = placements.length;
+ }
+ if (aPosition < 0) {
+ aPosition = 0;
+ }
+ placements.splice(aPosition, 0, aWidgetId);
+ }
+
+ let widget = gPalette.get(aWidgetId);
+ if (widget) {
+ widget.currentArea = aArea;
+ widget.currentPosition = aPosition;
+ }
+
+ // We initially set placements with addWidgetToArea, so in that case
+ // we don't consider the area "dirtied".
+ if (!aInitialAdd) {
+ gDirtyAreaCache.add(aArea);
+ }
+
+ gDirty = true;
+ this.saveState();
+
+ this.notifyListeners("onWidgetAdded", aWidgetId, aArea, aPosition);
+ },
+
+ removeWidgetFromArea(aWidgetId) {
+ let oldPlacement = this.getPlacementOfWidget(aWidgetId, false, true);
+ if (!oldPlacement) {
+ return;
+ }
+
+ if (!this.isWidgetRemovable(aWidgetId)) {
+ return;
+ }
+
+ let placements = gPlacements.get(oldPlacement.area);
+ let position = placements.indexOf(aWidgetId);
+ if (position != -1) {
+ placements.splice(position, 1);
+ }
+
+ let widget = gPalette.get(aWidgetId);
+ if (widget) {
+ widget.currentArea = null;
+ widget.currentPosition = null;
+ }
+
+ gDirty = true;
+ this.saveState();
+ gDirtyAreaCache.add(oldPlacement.area);
+
+ this.notifyListeners("onWidgetRemoved", aWidgetId, oldPlacement.area);
+ },
+
+ moveWidgetWithinArea(aWidgetId, aPosition) {
+ let oldPlacement = this.getPlacementOfWidget(aWidgetId);
+ if (!oldPlacement) {
+ return;
+ }
+
+ let placements = gPlacements.get(oldPlacement.area);
+ if (typeof aPosition != "number") {
+ aPosition = placements.length;
+ } else if (aPosition < 0) {
+ aPosition = 0;
+ } else if (aPosition > placements.length) {
+ aPosition = placements.length;
+ }
+
+ let widget = gPalette.get(aWidgetId);
+ if (widget) {
+ widget.currentPosition = aPosition;
+ widget.currentArea = oldPlacement.area;
+ }
+
+ if (aPosition == oldPlacement.position) {
+ return;
+ }
+
+ placements.splice(oldPlacement.position, 1);
+ // If we just removed the item from *before* where it is now added,
+ // we need to compensate the position offset for that:
+ if (oldPlacement.position < aPosition) {
+ aPosition--;
+ }
+ placements.splice(aPosition, 0, aWidgetId);
+
+ gDirty = true;
+ gDirtyAreaCache.add(oldPlacement.area);
+
+ this.saveState();
+
+ this.notifyListeners("onWidgetMoved", aWidgetId, oldPlacement.area,
+ oldPlacement.position, aPosition);
+ },
+
+ // Note that this does not populate gPlacements, which is done lazily so that
+ // the legacy state can be migrated, which is only available once a browser
+ // window is openned.
+ // The panel area is an exception here, since it has no legacy state and is
+ // built lazily - and therefore wouldn't otherwise result in restoring its
+ // state immediately when a browser window opens, which is important for
+ // other consumers of this API.
+ loadSavedState() {
+ let state = null;
+ try {
+ state = Services.prefs.getCharPref(kPrefCustomizationState);
+ } catch (e) {
+ log.debug("No saved state found");
+ // This will fail if nothing has been customized, so silently fall back to
+ // the defaults.
+ }
+
+ if (!state) {
+ return;
+ }
+ try {
+ gSavedState = JSON.parse(state);
+ if (typeof gSavedState != "object" || gSavedState === null) {
+ throw "Invalid saved state";
+ }
+ } catch (e) {
+ Services.prefs.clearUserPref(kPrefCustomizationState);
+ gSavedState = {};
+ log.debug("Error loading saved UI customization state, falling back to defaults.");
+ }
+
+ if (!("placements" in gSavedState)) {
+ gSavedState.placements = {};
+ }
+
+ if (!("currentVersion" in gSavedState)) {
+ gSavedState.currentVersion = 0;
+ }
+
+ gSeenWidgets = new Set(gSavedState.seen || []);
+ gDirtyAreaCache = new Set(gSavedState.dirtyAreaCache || []);
+ gNewElementCount = gSavedState.newElementCount || 0;
+ },
+
+ restoreStateForArea(aArea, aLegacyState) {
+ let placementsPreexisted = gPlacements.has(aArea);
+
+ this.beginBatchUpdate();
+ try {
+ gRestoring = true;
+
+ let restored = false;
+ if (placementsPreexisted) {
+ log.debug("Restoring " + aArea + " from pre-existing placements");
+ for (let [position, id] of gPlacements.get(aArea).entries()) {
+ this.moveWidgetWithinArea(id, position);
+ }
+ gDirty = false;
+ restored = true;
+ } else {
+ gPlacements.set(aArea, []);
+ }
+
+ if (!restored && gSavedState && aArea in gSavedState.placements) {
+ log.debug("Restoring " + aArea + " from saved state");
+ let placements = gSavedState.placements[aArea];
+ for (let id of placements)
+ this.addWidgetToArea(id, aArea);
+ gDirty = false;
+ restored = true;
+ }
+
+ if (!restored && aLegacyState) {
+ log.debug("Restoring " + aArea + " from legacy state");
+ for (let id of aLegacyState)
+ this.addWidgetToArea(id, aArea);
+ // Don't override dirty state, to ensure legacy state is saved here and
+ // therefore only used once.
+ restored = true;
+ }
+
+ if (!restored) {
+ log.debug("Restoring " + aArea + " from default state");
+ let defaults = gAreas.get(aArea).get("defaultPlacements");
+ if (defaults) {
+ for (let id of defaults)
+ this.addWidgetToArea(id, aArea, null, true);
+ }
+ gDirty = false;
+ }
+
+ // Finally, add widgets to the area that were added before the it was able
+ // to be restored. This can occur when add-ons register widgets for a
+ // lazily-restored area before it's been restored.
+ if (gFuturePlacements.has(aArea)) {
+ for (let id of gFuturePlacements.get(aArea))
+ this.addWidgetToArea(id, aArea);
+ gFuturePlacements.delete(aArea);
+ }
+
+ log.debug("Placements for " + aArea + ":\n\t" + gPlacements.get(aArea).join("\n\t"));
+
+ gRestoring = false;
+ } finally {
+ this.endBatchUpdate();
+ }
+ },
+
+ saveState() {
+ if (gInBatchStack || !gDirty) {
+ return;
+ }
+ // Clone because we want to modify this map:
+ let state = { placements: new Map(gPlacements),
+ seen: gSeenWidgets,
+ dirtyAreaCache: gDirtyAreaCache,
+ currentVersion: kVersion,
+ newElementCount: gNewElementCount };
+
+ // Merge in previously saved areas if not present in gPlacements.
+ // This way, state is still persisted for e.g. temporarily disabled
+ // add-ons - see bug 989338.
+ if (gSavedState && gSavedState.placements) {
+ for (let area of Object.keys(gSavedState.placements)) {
+ if (!state.placements.has(area)) {
+ let placements = gSavedState.placements[area];
+ state.placements.set(area, placements);
+ }
+ }
+ }
+
+ log.debug("Saving state.");
+ let serialized = JSON.stringify(state, this.serializerHelper);
+ log.debug("State saved as: " + serialized);
+ Services.prefs.setCharPref(kPrefCustomizationState, serialized);
+ gDirty = false;
+ },
+
+ serializerHelper(aKey, aValue) {
+ if (typeof aValue == "object" && aValue.constructor.name == "Map") {
+ let result = {};
+ for (let [mapKey, mapValue] of aValue)
+ result[mapKey] = mapValue;
+ return result;
+ }
+
+ if (typeof aValue == "object" && aValue.constructor.name == "Set") {
+ return [...aValue];
+ }
+
+ return aValue;
+ },
+
+ beginBatchUpdate() {
+ gInBatchStack++;
+ },
+
+ endBatchUpdate(aForceDirty) {
+ gInBatchStack--;
+ if (aForceDirty === true) {
+ gDirty = true;
+ }
+ if (gInBatchStack == 0) {
+ this.saveState();
+ } else if (gInBatchStack < 0) {
+ throw new Error("The batch editing stack should never reach a negative number.");
+ }
+ },
+
+ addListener(aListener) {
+ gListeners.add(aListener);
+ },
+
+ removeListener(aListener) {
+ if (aListener == this) {
+ return;
+ }
+
+ gListeners.delete(aListener);
+ },
+
+ notifyListeners(aEvent, ...aArgs) {
+ if (gRestoring) {
+ return;
+ }
+
+ for (let listener of gListeners) {
+ try {
+ if (typeof listener[aEvent] == "function") {
+ listener[aEvent].apply(listener, aArgs);
+ }
+ } catch (e) {
+ log.error(e + " -- " + e.fileName + ":" + e.lineNumber);
+ }
+ }
+ },
+
+ _dispatchToolboxEventToWindow(aEventType, aDetails, aWindow) {
+ let evt = new aWindow.CustomEvent(aEventType, {
+ bubbles: true,
+ cancelable: true,
+ detail: aDetails
+ });
+ aWindow.gNavToolbox.dispatchEvent(evt);
+ },
+
+ dispatchToolboxEvent(aEventType, aDetails = {}, aWindow = null) {
+ if (aWindow) {
+ this._dispatchToolboxEventToWindow(aEventType, aDetails, aWindow);
+ return;
+ }
+ for (let [win, ] of gBuildWindows) {
+ this._dispatchToolboxEventToWindow(aEventType, aDetails, win);
+ }
+ },
+
+ createWidget(aProperties) {
+ let widget = this.normalizeWidget(aProperties, CustomizableUI.SOURCE_EXTERNAL);
+ // XXXunf This should probably throw.
+ if (!widget) {
+ log.error("unable to normalize widget");
+ return undefined;
+ }
+
+ gPalette.set(widget.id, widget);
+
+ // Clear our caches:
+ gGroupWrapperCache.delete(widget.id);
+ for (let [win, ] of gBuildWindows) {
+ let cache = gSingleWrapperCache.get(win);
+ if (cache) {
+ cache.delete(widget.id);
+ }
+ }
+
+ this.notifyListeners("onWidgetCreated", widget.id);
+
+ if (widget.defaultArea) {
+ let addToDefaultPlacements = false;
+ let area = gAreas.get(widget.defaultArea);
+ if (!CustomizableUI.isBuiltinToolbar(widget.defaultArea) &&
+ widget.defaultArea != CustomizableUI.AREA_PANEL) {
+ addToDefaultPlacements = true;
+ }
+
+ if (addToDefaultPlacements) {
+ if (area.has("defaultPlacements")) {
+ area.get("defaultPlacements").push(widget.id);
+ } else {
+ area.set("defaultPlacements", [widget.id]);
+ }
+ }
+ }
+
+ // Look through previously saved state to see if we're restoring a widget.
+ let seenAreas = new Set();
+ let widgetMightNeedAutoAdding = true;
+ for (let [area, ] of gPlacements) {
+ seenAreas.add(area);
+ let areaIsRegistered = gAreas.has(area);
+ let index = gPlacements.get(area).indexOf(widget.id);
+ if (index != -1) {
+ widgetMightNeedAutoAdding = false;
+ if (areaIsRegistered) {
+ widget.currentArea = area;
+ widget.currentPosition = index;
+ }
+ break;
+ }
+ }
+
+ // Also look at saved state data directly in areas that haven't yet been
+ // restored. Can't rely on this for restored areas, as they may have
+ // changed.
+ if (widgetMightNeedAutoAdding && gSavedState) {
+ for (let area of Object.keys(gSavedState.placements)) {
+ if (seenAreas.has(area)) {
+ continue;
+ }
+
+ let areaIsRegistered = gAreas.has(area);
+ let index = gSavedState.placements[area].indexOf(widget.id);
+ if (index != -1) {
+ widgetMightNeedAutoAdding = false;
+ if (areaIsRegistered) {
+ widget.currentArea = area;
+ widget.currentPosition = index;
+ }
+ break;
+ }
+ }
+ }
+
+ // If we're restoring the widget to it's old placement, fire off the
+ // onWidgetAdded event - our own handler will take care of adding it to
+ // any build areas.
+ this.beginBatchUpdate();
+ try {
+ if (widget.currentArea) {
+ this.notifyListeners("onWidgetAdded", widget.id, widget.currentArea,
+ widget.currentPosition);
+ } else if (widgetMightNeedAutoAdding) {
+ let autoAdd = true;
+ try {
+ autoAdd = Services.prefs.getBoolPref(kPrefCustomizationAutoAdd);
+ } catch (e) {}
+
+ // If the widget doesn't have an existing placement, and it hasn't been
+ // seen before, then add it to its default area so it can be used.
+ // If the widget is not removable, we *have* to add it to its default
+ // area here.
+ let canBeAutoAdded = autoAdd && !gSeenWidgets.has(widget.id);
+ if (!widget.currentArea && (!widget.removable || canBeAutoAdded)) {
+ if (widget.defaultArea) {
+ if (this.isAreaLazy(widget.defaultArea)) {
+ gFuturePlacements.get(widget.defaultArea).add(widget.id);
+ } else {
+ this.addWidgetToArea(widget.id, widget.defaultArea);
+ }
+ }
+ }
+ }
+ } finally {
+ // Ensure we always have this widget in gSeenWidgets, and save
+ // state in case this needs to be done here.
+ gSeenWidgets.add(widget.id);
+ this.endBatchUpdate(true);
+ }
+
+ this.notifyListeners("onWidgetAfterCreation", widget.id, widget.currentArea);
+ return widget.id;
+ },
+
+ createBuiltinWidget(aData) {
+ // This should only ever be called on startup, before any windows are
+ // opened - so we know there's no build areas to handle. Also, builtin
+ // widgets are expected to be (mostly) static, so shouldn't affect the
+ // current placement settings.
+
+ // This allows a widget to be both built-in by default but also able to be
+ // destroyed and removed from the area based on criteria that may not be
+ // available when the widget is created -- for example, because some other
+ // feature in the browser supersedes the widget.
+ let conditionalDestroyPromise = aData.conditionalDestroyPromise || null;
+ delete aData.conditionalDestroyPromise;
+
+ let widget = this.normalizeWidget(aData, CustomizableUI.SOURCE_BUILTIN);
+ if (!widget) {
+ log.error("Error creating builtin widget: " + aData.id);
+ return;
+ }
+
+ log.debug("Creating built-in widget with id: " + widget.id);
+ gPalette.set(widget.id, widget);
+
+ if (conditionalDestroyPromise) {
+ conditionalDestroyPromise.then(shouldDestroy => {
+ if (shouldDestroy) {
+ this.destroyWidget(widget.id);
+ this.removeWidgetFromArea(widget.id);
+ }
+ }, err => {
+ Cu.reportError(err);
+ });
+ }
+ },
+
+ // Returns true if the area will eventually lazily restore (but hasn't yet).
+ isAreaLazy(aArea) {
+ if (gPlacements.has(aArea)) {
+ return false;
+ }
+ return gAreas.get(aArea).has("legacy");
+ },
+
+ // XXXunf Log some warnings here, when the data provided isn't up to scratch.
+ normalizeWidget(aData, aSource) {
+ let widget = {
+ implementation: aData,
+ source: aSource || CustomizableUI.SOURCE_EXTERNAL,
+ instances: new Map(),
+ currentArea: null,
+ removable: true,
+ overflows: true,
+ defaultArea: null,
+ shortcutId: null,
+ tabSpecific: false,
+ tooltiptext: null,
+ showInPrivateBrowsing: true,
+ _introducedInVersion: -1,
+ };
+
+ if (typeof aData.id != "string" || !/^[a-z0-9-_]{1,}$/i.test(aData.id)) {
+ log.error("Given an illegal id in normalizeWidget: " + aData.id);
+ return null;
+ }
+
+ delete widget.implementation.currentArea;
+ widget.implementation.__defineGetter__("currentArea", () => widget.currentArea);
+
+ const kReqStringProps = ["id"];
+ for (let prop of kReqStringProps) {
+ if (typeof aData[prop] != "string") {
+ log.error("Missing required property '" + prop + "' in normalizeWidget: "
+ + aData.id);
+ return null;
+ }
+ widget[prop] = aData[prop];
+ }
+
+ const kOptStringProps = ["label", "tooltiptext", "shortcutId"];
+ for (let prop of kOptStringProps) {
+ if (typeof aData[prop] == "string") {
+ widget[prop] = aData[prop];
+ }
+ }
+
+ const kOptBoolProps = ["removable", "showInPrivateBrowsing", "overflows", "tabSpecific"];
+ for (let prop of kOptBoolProps) {
+ if (typeof aData[prop] == "boolean") {
+ widget[prop] = aData[prop];
+ }
+ }
+
+ // When we normalize builtin widgets, areas have not yet been registered:
+ if (aData.defaultArea &&
+ (aSource == CustomizableUI.SOURCE_BUILTIN || gAreas.has(aData.defaultArea))) {
+ widget.defaultArea = aData.defaultArea;
+ } else if (!widget.removable) {
+ log.error("Widget '" + widget.id + "' is not removable but does not specify " +
+ "a valid defaultArea. That's not possible; it must specify a " +
+ "valid defaultArea as well.");
+ return null;
+ }
+
+ if ("type" in aData && gSupportedWidgetTypes.has(aData.type)) {
+ widget.type = aData.type;
+ } else {
+ widget.type = "button";
+ }
+
+ widget.disabled = aData.disabled === true;
+
+ if (aSource == CustomizableUI.SOURCE_BUILTIN) {
+ widget._introducedInVersion = aData.introducedInVersion || 0;
+ }
+
+ this.wrapWidgetEventHandler("onBeforeCreated", widget);
+ this.wrapWidgetEventHandler("onClick", widget);
+ this.wrapWidgetEventHandler("onCreated", widget);
+ this.wrapWidgetEventHandler("onDestroyed", widget);
+
+ if (widget.type == "button") {
+ widget.onCommand = typeof aData.onCommand == "function" ?
+ aData.onCommand :
+ null;
+ } else if (widget.type == "view") {
+ if (typeof aData.viewId != "string") {
+ log.error("Expected a string for widget " + widget.id + " viewId, but got "
+ + aData.viewId);
+ return null;
+ }
+ widget.viewId = aData.viewId;
+
+ this.wrapWidgetEventHandler("onViewShowing", widget);
+ this.wrapWidgetEventHandler("onViewHiding", widget);
+ } else if (widget.type == "custom") {
+ this.wrapWidgetEventHandler("onBuild", widget);
+ }
+
+ if (gPalette.has(widget.id)) {
+ return null;
+ }
+
+ return widget;
+ },
+
+ wrapWidgetEventHandler(aEventName, aWidget) {
+ if (typeof aWidget.implementation[aEventName] != "function") {
+ aWidget[aEventName] = null;
+ return;
+ }
+ aWidget[aEventName] = function(...aArgs) {
+ // Wrap inside a try...catch to properly log errors, until bug 862627 is
+ // fixed, which in turn might help bug 503244.
+ try {
+ // Don't copy the function to the normalized widget object, instead
+ // keep it on the original object provided to the API so that
+ // additional methods can be implemented and used by the event
+ // handlers.
+ return aWidget.implementation[aEventName].apply(aWidget.implementation,
+ aArgs);
+ } catch (e) {
+ Cu.reportError(e);
+ return undefined;
+ }
+ };
+ },
+
+ destroyWidget(aWidgetId) {
+ let widget = gPalette.get(aWidgetId);
+ if (!widget) {
+ gGroupWrapperCache.delete(aWidgetId);
+ for (let [window, ] of gBuildWindows) {
+ let windowCache = gSingleWrapperCache.get(window);
+ if (windowCache) {
+ windowCache.delete(aWidgetId);
+ }
+ }
+ return;
+ }
+
+ // Remove it from the default placements of an area if it was added there:
+ if (widget.defaultArea) {
+ let area = gAreas.get(widget.defaultArea);
+ if (area) {
+ let defaultPlacements = area.get("defaultPlacements");
+ // We can assume this is present because if a widget has a defaultArea,
+ // we automatically create a defaultPlacements array for that area.
+ let widgetIndex = defaultPlacements.indexOf(aWidgetId);
+ if (widgetIndex != -1) {
+ defaultPlacements.splice(widgetIndex, 1);
+ }
+ }
+ }
+
+ // This will not remove the widget from gPlacements - we want to keep the
+ // setting so the widget gets put back in it's old position if/when it
+ // returns.
+ for (let [window, ] of gBuildWindows) {
+ let windowCache = gSingleWrapperCache.get(window);
+ if (windowCache) {
+ windowCache.delete(aWidgetId);
+ }
+ let widgetNode = window.document.getElementById(aWidgetId) ||
+ window.gNavToolbox.palette.getElementsByAttribute("id", aWidgetId)[0];
+ if (widgetNode) {
+ let container = widgetNode.parentNode
+ this.notifyListeners("onWidgetBeforeDOMChange", widgetNode, null,
+ container, true);
+ widgetNode.remove();
+ this.notifyListeners("onWidgetAfterDOMChange", widgetNode, null,
+ container, true);
+ }
+ if (widget.type == "view") {
+ let viewNode = window.document.getElementById(widget.viewId);
+ if (viewNode) {
+ for (let eventName of kSubviewEvents) {
+ let handler = "on" + eventName;
+ if (typeof widget[handler] == "function") {
+ viewNode.removeEventListener(eventName, widget[handler]);
+ }
+ }
+ }
+ }
+ if (widgetNode && widget.onDestroyed) {
+ widget.onDestroyed(window.document);
+ }
+ }
+
+ gPalette.delete(aWidgetId);
+ gGroupWrapperCache.delete(aWidgetId);
+
+ this.notifyListeners("onWidgetDestroyed", aWidgetId);
+ },
+
+ getCustomizeTargetForArea(aArea, aWindow) {
+ let buildAreaNodes = gBuildAreas.get(aArea);
+ if (!buildAreaNodes) {
+ return null;
+ }
+
+ for (let node of buildAreaNodes) {
+ if (node.ownerGlobal == aWindow) {
+ return node.customizationTarget ? node.customizationTarget : node;
+ }
+ }
+
+ return null;
+ },
+
+ reset() {
+ gResetting = true;
+ this._resetUIState();
+
+ // Rebuild each registered area (across windows) to reflect the state that
+ // was reset above.
+ this._rebuildRegisteredAreas();
+
+ for (let [widgetId, widget] of gPalette) {
+ if (widget.source == CustomizableUI.SOURCE_EXTERNAL) {
+ gSeenWidgets.add(widgetId);
+ }
+ }
+ if (gSeenWidgets.size) {
+ gDirty = true;
+ }
+
+ gResetting = false;
+ },
+
+ _resetUIState() {
+ try {
+ gUIStateBeforeReset.drawInTitlebar = Services.prefs.getBoolPref(kPrefDrawInTitlebar);
+ gUIStateBeforeReset.uiCustomizationState = Services.prefs.getCharPref(kPrefCustomizationState);
+ gUIStateBeforeReset.currentTheme = LightweightThemeManager.currentTheme;
+ } catch (e) { }
+
+ this._resetExtraToolbars();
+
+ Services.prefs.clearUserPref(kPrefCustomizationState);
+ Services.prefs.clearUserPref(kPrefDrawInTitlebar);
+ LightweightThemeManager.currentTheme = null;
+ log.debug("State reset");
+
+ // Reset placements to make restoring default placements possible.
+ gPlacements = new Map();
+ gDirtyAreaCache = new Set();
+ gSeenWidgets = new Set();
+ // Clear the saved state to ensure that defaults will be used.
+ gSavedState = null;
+ // Restore the state for each area to its defaults
+ for (let [areaId, ] of gAreas) {
+ this.restoreStateForArea(areaId);
+ }
+ },
+
+ _resetExtraToolbars(aFilter = null) {
+ let firstWindow = true; // Only need to unregister and persist once
+ for (let [win, ] of gBuildWindows) {
+ let toolbox = win.gNavToolbox;
+ for (let child of toolbox.children) {
+ let matchesFilter = !aFilter || aFilter == child.id;
+ if (child.hasAttribute("customindex") && matchesFilter) {
+ let toolbarId = "toolbar" + child.getAttribute("customindex");
+ toolbox.toolbarset.removeAttribute(toolbarId);
+ if (firstWindow) {
+ win.document.persist(toolbox.toolbarset.id, toolbarId);
+ // We have to unregister it properly to ensure we don't kill
+ // XUL widgets which might be in here
+ this.unregisterArea(child.id, true);
+ }
+ child.remove();
+ }
+ }
+ firstWindow = false;
+ }
+ },
+
+ _rebuildRegisteredAreas() {
+ for (let [areaId, areaNodes] of gBuildAreas) {
+ let placements = gPlacements.get(areaId);
+ let isFirstChangedToolbar = true;
+ for (let areaNode of areaNodes) {
+ this.buildArea(areaId, placements, areaNode);
+
+ let area = gAreas.get(areaId);
+ if (area.get("type") == CustomizableUI.TYPE_TOOLBAR) {
+ let defaultCollapsed = area.get("defaultCollapsed");
+ let win = areaNode.ownerGlobal;
+ if (defaultCollapsed !== null) {
+ win.setToolbarVisibility(areaNode, !defaultCollapsed, isFirstChangedToolbar);
+ }
+ }
+ isFirstChangedToolbar = false;
+ }
+ }
+ },
+
+ /**
+ * Undoes a previous reset, restoring the state of the UI to the state prior to the reset.
+ */
+ undoReset() {
+ if (gUIStateBeforeReset.uiCustomizationState == null ||
+ gUIStateBeforeReset.drawInTitlebar == null) {
+ return;
+ }
+ gUndoResetting = true;
+
+ let uiCustomizationState = gUIStateBeforeReset.uiCustomizationState;
+ let drawInTitlebar = gUIStateBeforeReset.drawInTitlebar;
+ let currentTheme = gUIStateBeforeReset.currentTheme;
+
+ // Need to clear the previous state before setting the prefs
+ // because pref observers may check if there is a previous UI state.
+ this._clearPreviousUIState();
+
+ Services.prefs.setCharPref(kPrefCustomizationState, uiCustomizationState);
+ Services.prefs.setBoolPref(kPrefDrawInTitlebar, drawInTitlebar);
+ LightweightThemeManager.currentTheme = currentTheme;
+ this.loadSavedState();
+ // If the user just customizes toolbar/titlebar visibility, gSavedState will be null
+ // and we don't need to do anything else here:
+ if (gSavedState) {
+ for (let areaId of Object.keys(gSavedState.placements)) {
+ let placements = gSavedState.placements[areaId];
+ gPlacements.set(areaId, placements);
+ }
+ this._rebuildRegisteredAreas();
+ }
+
+ gUndoResetting = false;
+ },
+
+ _clearPreviousUIState() {
+ Object.getOwnPropertyNames(gUIStateBeforeReset).forEach((prop) => {
+ gUIStateBeforeReset[prop] = null;
+ });
+ },
+
+ removeExtraToolbar(aToolbarId) {
+ this._resetExtraToolbars(aToolbarId);
+ },
+
+ /**
+ * @param {String|Node} aWidget - widget ID or a widget node (preferred for performance).
+ * @return {Boolean} whether the widget is removable
+ */
+ isWidgetRemovable(aWidget) {
+ let widgetId;
+ let widgetNode;
+ if (typeof aWidget == "string") {
+ widgetId = aWidget;
+ } else {
+ widgetId = aWidget.id;
+ widgetNode = aWidget;
+ }
+ let provider = this.getWidgetProvider(widgetId);
+
+ if (provider == CustomizableUI.PROVIDER_API) {
+ return gPalette.get(widgetId).removable;
+ }
+
+ if (provider == CustomizableUI.PROVIDER_XUL) {
+ if (gBuildWindows.size == 0) {
+ // We don't have any build windows to look at, so just assume for now
+ // that its removable.
+ return true;
+ }
+
+ if (!widgetNode) {
+ // Pick any of the build windows to look at.
+ let [window, ] = [...gBuildWindows][0];
+ [, widgetNode] = this.getWidgetNode(widgetId, window);
+ }
+ // If we don't have a node, we assume it's removable. This can happen because
+ // getWidgetProvider returns PROVIDER_XUL by default, but this will also happen
+ // for API-provided widgets which have been destroyed.
+ if (!widgetNode) {
+ return true;
+ }
+ return widgetNode.getAttribute("removable") == "true";
+ }
+
+ // Otherwise this is either a special widget, which is always removable, or
+ // an API widget which has already been removed from gPalette. Returning true
+ // here allows us to then remove its ID from any placements where it might
+ // still occur.
+ return true;
+ },
+
+ canWidgetMoveToArea(aWidgetId, aArea) {
+ let placement = this.getPlacementOfWidget(aWidgetId);
+ if (placement && placement.area != aArea) {
+ // Special widgets can't move to the menu panel.
+ if (this.isSpecialWidget(aWidgetId) && gAreas.has(aArea) &&
+ gAreas.get(aArea).get("type") == CustomizableUI.TYPE_MENU_PANEL) {
+ return false;
+ }
+ // For everything else, just return whether the widget is removable.
+ return this.isWidgetRemovable(aWidgetId);
+ }
+
+ return true;
+ },
+
+ ensureWidgetPlacedInWindow(aWidgetId, aWindow) {
+ let placement = this.getPlacementOfWidget(aWidgetId);
+ if (!placement) {
+ return false;
+ }
+ let areaNodes = gBuildAreas.get(placement.area);
+ if (!areaNodes) {
+ return false;
+ }
+ let container = [...areaNodes].filter((n) => n.ownerGlobal == aWindow);
+ if (!container.length) {
+ return false;
+ }
+ let existingNode = container[0].getElementsByAttribute("id", aWidgetId)[0];
+ if (existingNode) {
+ return true;
+ }
+
+ this.insertNodeInWindow(aWidgetId, container[0], true);
+ return true;
+ },
+
+ get inDefaultState() {
+ for (let [areaId, props] of gAreas) {
+ let defaultPlacements = props.get("defaultPlacements");
+ // Areas without default placements (like legacy ones?) get skipped
+ if (!defaultPlacements) {
+ continue;
+ }
+
+ let currentPlacements = gPlacements.get(areaId);
+ // We're excluding all of the placement IDs for items that do not exist,
+ // and items that have removable="false",
+ // because we don't want to consider them when determining if we're
+ // in the default state. This way, if an add-on introduces a widget
+ // and is then uninstalled, the leftover placement doesn't cause us to
+ // automatically assume that the buttons are not in the default state.
+ let buildAreaNodes = gBuildAreas.get(areaId);
+ if (buildAreaNodes && buildAreaNodes.size) {
+ let container = [...buildAreaNodes][0];
+ let removableOrDefault = (itemNodeOrItem) => {
+ let item = (itemNodeOrItem && itemNodeOrItem.id) || itemNodeOrItem;
+ let isRemovable = this.isWidgetRemovable(itemNodeOrItem);
+ let isInDefault = defaultPlacements.indexOf(item) != -1;
+ return isRemovable || isInDefault;
+ };
+ // Toolbars have a currentSet property which also deals correctly with overflown
+ // widgets (if any) - use that instead:
+ if (props.get("type") == CustomizableUI.TYPE_TOOLBAR) {
+ let currentSet = container.currentSet;
+ currentPlacements = currentSet ? currentSet.split(",") : [];
+ currentPlacements = currentPlacements.filter(removableOrDefault);
+ } else {
+ // Clone the array so we don't modify the actual placements...
+ currentPlacements = [...currentPlacements];
+ currentPlacements = currentPlacements.filter((item) => {
+ let itemNode = container.getElementsByAttribute("id", item)[0];
+ return itemNode && removableOrDefault(itemNode || item);
+ });
+ }
+
+ if (props.get("type") == CustomizableUI.TYPE_TOOLBAR) {
+ let attribute = container.getAttribute("type") == "menubar" ? "autohide" : "collapsed";
+ let collapsed = container.getAttribute(attribute) == "true";
+ let defaultCollapsed = props.get("defaultCollapsed");
+ if (defaultCollapsed !== null && collapsed != defaultCollapsed) {
+ log.debug("Found " + areaId + " had non-default toolbar visibility (expected " + defaultCollapsed + ", was " + collapsed + ")");
+ return false;
+ }
+ }
+ }
+ log.debug("Checking default state for " + areaId + ":\n" + currentPlacements.join(",") +
+ "\nvs.\n" + defaultPlacements.join(","));
+
+ if (currentPlacements.length != defaultPlacements.length) {
+ return false;
+ }
+
+ for (let i = 0; i < currentPlacements.length; ++i) {
+ if (currentPlacements[i] != defaultPlacements[i]) {
+ log.debug("Found " + currentPlacements[i] + " in " + areaId + " where " +
+ defaultPlacements[i] + " was expected!");
+ return false;
+ }
+ }
+ }
+
+ if (Services.prefs.prefHasUserValue(kPrefDrawInTitlebar)) {
+ log.debug(kPrefDrawInTitlebar + " pref is non-default");
+ return false;
+ }
+
+ if (LightweightThemeManager.currentTheme) {
+ log.debug(LightweightThemeManager.currentTheme + " theme is non-default");
+ return false;
+ }
+
+ return true;
+ },
+
+ setToolbarVisibility(aToolbarId, aIsVisible) {
+ // We only persist the attribute the first time.
+ let isFirstChangedToolbar = true;
+ for (let window of CustomizableUI.windows) {
+ let toolbar = window.document.getElementById(aToolbarId);
+ if (toolbar) {
+ window.setToolbarVisibility(toolbar, aIsVisible, isFirstChangedToolbar);
+ isFirstChangedToolbar = false;
+ }
+ }
+ },
+};
+Object.freeze(CustomizableUIInternal);
+
+this.CustomizableUI = {
+ /**
+ * Constant reference to the ID of the menu panel.
+ */
+ AREA_PANEL: "PanelUI-contents",
+ /**
+ * Constant reference to the ID of the navigation toolbar.
+ */
+ AREA_NAVBAR: "nav-bar",
+ /**
+ * Constant reference to the ID of the menubar's toolbar.
+ */
+ AREA_MENUBAR: "toolbar-menubar",
+ /**
+ * Constant reference to the ID of the tabstrip toolbar.
+ */
+ AREA_TABSTRIP: "TabsToolbar",
+ /**
+ * Constant reference to the ID of the bookmarks toolbar.
+ */
+ AREA_BOOKMARKS: "PersonalToolbar",
+ /**
+ * Constant reference to the ID of the addon-bar toolbar shim.
+ * Do not use, this will be removed as soon as reasonably possible.
+ * @deprecated
+ */
+ AREA_ADDONBAR: "addon-bar",
+ /**
+ * Constant indicating the area is a menu panel.
+ */
+ TYPE_MENU_PANEL: "menu-panel",
+ /**
+ * Constant indicating the area is a toolbar.
+ */
+ TYPE_TOOLBAR: "toolbar",
+
+ /**
+ * Constant indicating a XUL-type provider.
+ */
+ PROVIDER_XUL: "xul",
+ /**
+ * Constant indicating an API-type provider.
+ */
+ PROVIDER_API: "api",
+ /**
+ * Constant indicating dynamic (special) widgets: spring, spacer, and separator.
+ */
+ PROVIDER_SPECIAL: "special",
+
+ /**
+ * Constant indicating the widget is built-in
+ */
+ SOURCE_BUILTIN: "builtin",
+ /**
+ * Constant indicating the widget is externally provided
+ * (e.g. by add-ons or other items not part of the builtin widget set).
+ */
+ SOURCE_EXTERNAL: "external",
+
+ /**
+ * The class used to distinguish items that span the entire menu panel.
+ */
+ WIDE_PANEL_CLASS: "panel-wide-item",
+ /**
+ * The (constant) number of columns in the menu panel.
+ */
+ PANEL_COLUMN_COUNT: 3,
+
+ /**
+ * Constant indicating the reason the event was fired was a window closing
+ */
+ REASON_WINDOW_CLOSED: "window-closed",
+ /**
+ * Constant indicating the reason the event was fired was an area being
+ * unregistered separately from window closing mechanics.
+ */
+ REASON_AREA_UNREGISTERED: "area-unregistered",
+
+
+ /**
+ * An iteratable property of windows managed by CustomizableUI.
+ * Note that this can *only* be used as an iterator. ie:
+ * for (let window of CustomizableUI.windows) { ... }
+ */
+ windows: {
+ *[Symbol.iterator]() {
+ for (let [window, ] of gBuildWindows)
+ yield window;
+ }
+ },
+
+ /**
+ * Add a listener object that will get fired for various events regarding
+ * customization.
+ *
+ * @param aListener the listener object to add
+ *
+ * Not all event handler methods need to be defined.
+ * CustomizableUI will catch exceptions. Events are dispatched
+ * synchronously on the UI thread, so if you can delay any/some of your
+ * processing, that is advisable. The following event handlers are supported:
+ * - onWidgetAdded(aWidgetId, aArea, aPosition)
+ * Fired when a widget is added to an area. aWidgetId is the widget that
+ * was added, aArea the area it was added to, and aPosition the position
+ * in which it was added.
+ * - onWidgetMoved(aWidgetId, aArea, aOldPosition, aNewPosition)
+ * Fired when a widget is moved within its area. aWidgetId is the widget
+ * that was moved, aArea the area it was moved in, aOldPosition its old
+ * position, and aNewPosition its new position.
+ * - onWidgetRemoved(aWidgetId, aArea)
+ * Fired when a widget is removed from its area. aWidgetId is the widget
+ * that was removed, aArea the area it was removed from.
+ *
+ * - onWidgetBeforeDOMChange(aNode, aNextNode, aContainer, aIsRemoval)
+ * Fired *before* a widget's DOM node is acted upon by CustomizableUI
+ * (to add, move or remove it). aNode is the DOM node changed, aNextNode
+ * the DOM node (if any) before which a widget will be inserted,
+ * aContainer the *actual* DOM container (could be an overflow panel in
+ * case of an overflowable toolbar), and aWasRemoval is true iff the
+ * action about to happen is the removal of the DOM node.
+ * - onWidgetAfterDOMChange(aNode, aNextNode, aContainer, aWasRemoval)
+ * Like onWidgetBeforeDOMChange, but fired after the change to the DOM
+ * node of the widget.
+ *
+ * - onWidgetReset(aNode, aContainer)
+ * Fired after a reset to default placements moves a widget's node to a
+ * different location. aNode is the widget's node, aContainer is the
+ * area it was moved into (NB: it might already have been there and been
+ * moved to a different position!)
+ * - onWidgetUndoMove(aNode, aContainer)
+ * Fired after undoing a reset to default placements moves a widget's
+ * node to a different location. aNode is the widget's node, aContainer
+ * is the area it was moved into (NB: it might already have been there
+ * and been moved to a different position!)
+ * - onAreaReset(aArea, aContainer)
+ * Fired after a reset to default placements is complete on an area's
+ * DOM node. Note that this is fired for each DOM node. aArea is the area
+ * that was reset, aContainer the DOM node that was reset.
+ *
+ * - onWidgetCreated(aWidgetId)
+ * Fired when a widget with id aWidgetId has been created, but before it
+ * is added to any placements or any DOM nodes have been constructed.
+ * Only fired for API-based widgets.
+ * - onWidgetAfterCreation(aWidgetId, aArea)
+ * Fired after a widget with id aWidgetId has been created, and has been
+ * added to either its default area or the area in which it was placed
+ * previously. If the widget has no default area and/or it has never
+ * been placed anywhere, aArea may be null. Only fired for API-based
+ * widgets.
+ * - onWidgetDestroyed(aWidgetId)
+ * Fired when widgets are destroyed. aWidgetId is the widget that is
+ * being destroyed. Only fired for API-based widgets.
+ * - onWidgetInstanceRemoved(aWidgetId, aDocument)
+ * Fired when a window is unloaded and a widget's instance is destroyed
+ * because of this. Only fired for API-based widgets.
+ *
+ * - onWidgetDrag(aWidgetId, aArea)
+ * Fired both when and after customize mode drag handling system tries
+ * to determine the width and height of widget aWidgetId when dragged to a
+ * different area. aArea will be the area the item is dragged to, or
+ * undefined after the measurements have been done and the node has been
+ * moved back to its 'regular' area.
+ *
+ * - onCustomizeStart(aWindow)
+ * Fired when opening customize mode in aWindow.
+ * - onCustomizeEnd(aWindow)
+ * Fired when exiting customize mode in aWindow.
+ *
+ * - onWidgetOverflow(aNode, aContainer)
+ * Fired when a widget's DOM node is overflowing its container, a toolbar,
+ * and will be displayed in the overflow panel.
+ * - onWidgetUnderflow(aNode, aContainer)
+ * Fired when a widget's DOM node is *not* overflowing its container, a
+ * toolbar, anymore.
+ * - onWindowOpened(aWindow)
+ * Fired when a window has been opened that is managed by CustomizableUI,
+ * once all of the prerequisite setup has been done.
+ * - onWindowClosed(aWindow)
+ * Fired when a window that has been managed by CustomizableUI has been
+ * closed.
+ * - onAreaNodeRegistered(aArea, aContainer)
+ * Fired after an area node is first built when it is registered. This
+ * is often when the window has opened, but in the case of add-ons,
+ * could fire when the node has just been registered with CustomizableUI
+ * after an add-on update or disable/enable sequence.
+ * - onAreaNodeUnregistered(aArea, aContainer, aReason)
+ * Fired when an area node is explicitly unregistered by an API caller,
+ * or by a window closing. The aReason parameter indicates which of
+ * these is the case.
+ */
+ addListener(aListener) {
+ CustomizableUIInternal.addListener(aListener);
+ },
+ /**
+ * Remove a listener added with addListener
+ * @param aListener the listener object to remove
+ */
+ removeListener(aListener) {
+ CustomizableUIInternal.removeListener(aListener);
+ },
+
+ /**
+ * Register a customizable area with CustomizableUI.
+ * @param aName the name of the area to register. Can only contain
+ * alphanumeric characters, dashes (-) and underscores (_).
+ * @param aProps the properties of the area. The following properties are
+ * recognized:
+ * - type: the type of area. Either TYPE_TOOLBAR (default) or
+ * TYPE_MENU_PANEL;
+ * - anchor: for a menu panel or overflowable toolbar, the
+ * anchoring node for the panel.
+ * - legacy: set to true if you want customizableui to
+ * automatically migrate the currentset attribute
+ * - overflowable: set to true if your toolbar is overflowable.
+ * This requires an anchor, and only has an
+ * effect for toolbars.
+ * - defaultPlacements: an array of widget IDs making up the
+ * default contents of the area
+ * - defaultCollapsed: (INTERNAL ONLY) applies if the type is TYPE_TOOLBAR, specifies
+ * if toolbar is collapsed by default (default to true).
+ * Specify null to ensure that reset/inDefaultArea don't care
+ * about a toolbar's collapsed state
+ */
+ registerArea(aName, aProperties) {
+ CustomizableUIInternal.registerArea(aName, aProperties);
+ },
+ /**
+ * Register a concrete node for a registered area. This method is automatically
+ * called from any toolbar in the main browser window that has its
+ * "customizable" attribute set to true. There should normally be no need to
+ * call it yourself.
+ *
+ * Note that ideally, you should register your toolbar using registerArea
+ * before any of the toolbars have their XBL bindings constructed (which
+ * will happen when they're added to the DOM and are not hidden). If you
+ * don't, and your toolbar has a defaultset attribute, CustomizableUI will
+ * register it automatically. If your toolbar does not have a defaultset
+ * attribute, the node will be saved for processing when you call
+ * registerArea. Note that CustomizableUI won't restore state in the area,
+ * allow the user to customize it in customize mode, or otherwise deal
+ * with it, until the area has been registered.
+ */
+ registerToolbarNode(aToolbar, aExistingChildren) {
+ CustomizableUIInternal.registerToolbarNode(aToolbar, aExistingChildren);
+ },
+ /**
+ * Register the menu panel node. This method should not be called by anyone
+ * apart from the built-in PanelUI.
+ * @param aPanel the panel DOM node being registered.
+ */
+ registerMenuPanel(aPanel) {
+ CustomizableUIInternal.registerMenuPanel(aPanel);
+ },
+ /**
+ * Unregister a customizable area. The inverse of registerArea.
+ *
+ * Unregistering an area will remove all the (removable) widgets in the
+ * area, which will return to the panel, and destroy all other traces
+ * of the area within CustomizableUI. Note that this means the *contents*
+ * of the area's DOM nodes will be moved to the panel or removed, but
+ * the area's DOM nodes *themselves* will stay.
+ *
+ * Furthermore, by default the placements of the area will be kept in the
+ * saved state (!) and restored if you re-register the area at a later
+ * point. This is useful for e.g. add-ons that get disabled and then
+ * re-enabled (e.g. when they update).
+ *
+ * You can override this last behaviour (and destroy the placements
+ * information in the saved state) by passing true for aDestroyPlacements.
+ *
+ * @param aName the name of the area to unregister
+ * @param aDestroyPlacements whether to destroy the placements information
+ * for the area, too.
+ */
+ unregisterArea(aName, aDestroyPlacements) {
+ CustomizableUIInternal.unregisterArea(aName, aDestroyPlacements);
+ },
+ /**
+ * Add a widget to an area.
+ * If the area to which you try to add is not known to CustomizableUI,
+ * this will throw.
+ * If the area to which you try to add has not yet been restored from its
+ * legacy state, this will postpone the addition.
+ * If the area to which you try to add is the same as the area in which
+ * the widget is currently placed, this will do the same as
+ * moveWidgetWithinArea.
+ * If the widget cannot be removed from its original location, this will
+ * no-op.
+ *
+ * This will fire an onWidgetAdded notification,
+ * and an onWidgetBeforeDOMChange and onWidgetAfterDOMChange notification
+ * for each window CustomizableUI knows about.
+ *
+ * @param aWidgetId the ID of the widget to add
+ * @param aArea the ID of the area to add the widget to
+ * @param aPosition the position at which to add the widget. If you do not
+ * pass a position, the widget will be added to the end
+ * of the area.
+ */
+ addWidgetToArea(aWidgetId, aArea, aPosition) {
+ CustomizableUIInternal.addWidgetToArea(aWidgetId, aArea, aPosition);
+ },
+ /**
+ * Remove a widget from its area. If the widget cannot be removed from its
+ * area, or is not in any area, this will no-op. Otherwise, this will fire an
+ * onWidgetRemoved notification, and an onWidgetBeforeDOMChange and
+ * onWidgetAfterDOMChange notification for each window CustomizableUI knows
+ * about.
+ *
+ * @param aWidgetId the ID of the widget to remove
+ */
+ removeWidgetFromArea(aWidgetId) {
+ CustomizableUIInternal.removeWidgetFromArea(aWidgetId);
+ },
+ /**
+ * Move a widget within an area.
+ * If the widget is not in any area, this will no-op.
+ * If the widget is already at the indicated position, this will no-op.
+ *
+ * Otherwise, this will move the widget and fire an onWidgetMoved notification,
+ * and an onWidgetBeforeDOMChange and onWidgetAfterDOMChange notification for
+ * each window CustomizableUI knows about.
+ *
+ * @param aWidgetId the ID of the widget to move
+ * @param aPosition the position to move the widget to.
+ * Negative values or values greater than the number of
+ * widgets will be interpreted to mean moving the widget to
+ * respectively the first or last position.
+ */
+ moveWidgetWithinArea(aWidgetId, aPosition) {
+ CustomizableUIInternal.moveWidgetWithinArea(aWidgetId, aPosition);
+ },
+ /**
+ * Ensure a XUL-based widget created in a window after areas were
+ * initialized moves to its correct position.
+ * This is roughly equivalent to manually looking up the position and using
+ * insertItem in the old API, but a lot less work for consumers.
+ * Always prefer this over using toolbar.insertItem (which might no-op
+ * because it delegates to addWidgetToArea) or, worse, moving items in the
+ * DOM yourself.
+ *
+ * @param aWidgetId the ID of the widget that was just created
+ * @param aWindow the window in which you want to ensure it was added.
+ *
+ * NB: why is this API per-window, you wonder? Because if you need this,
+ * presumably you yourself need to create the widget in all the windows
+ * and need to loop through them anyway.
+ */
+ ensureWidgetPlacedInWindow(aWidgetId, aWindow) {
+ return CustomizableUIInternal.ensureWidgetPlacedInWindow(aWidgetId, aWindow);
+ },
+ /**
+ * Start a batch update of items.
+ * During a batch update, the customization state is not saved to the user's
+ * preferences file, in order to reduce (possibly sync) IO.
+ * Calls to begin/endBatchUpdate may be nested.
+ *
+ * Callers should ensure that NO MATTER WHAT they call endBatchUpdate once
+ * for each call to beginBatchUpdate, even if there are exceptions in the
+ * code in the batch update. Otherwise, for the duration of the
+ * Firefox session, customization state is never saved. Typically, you
+ * would do this using a try...finally block.
+ */
+ beginBatchUpdate() {
+ CustomizableUIInternal.beginBatchUpdate();
+ },
+ /**
+ * End a batch update. See the documentation for beginBatchUpdate above.
+ *
+ * State is not saved if we believe it is identical to the last known
+ * saved state. State is only ever saved when all batch updates have
+ * finished (ie there has been 1 endBatchUpdate call for each
+ * beginBatchUpdate call). If any of the endBatchUpdate calls pass
+ * aForceDirty=true, we will flush to the prefs file.
+ *
+ * @param aForceDirty force CustomizableUI to flush to the prefs file when
+ * all batch updates have finished.
+ */
+ endBatchUpdate(aForceDirty) {
+ CustomizableUIInternal.endBatchUpdate(aForceDirty);
+ },
+ /**
+ * Create a widget.
+ *
+ * To create a widget, you should pass an object with its desired
+ * properties. The following properties are supported:
+ *
+ * - id: the ID of the widget (required).
+ * - type: a string indicating the type of widget. Possible types
+ * are:
+ * 'button' - for simple button widgets (the default)
+ * 'view' - for buttons that open a panel or subview,
+ * depending on where they are placed.
+ * 'custom' - for fine-grained control over the creation
+ * of the widget.
+ * - viewId: Only useful for views (and required there): the id of the
+ * <panelview> that should be shown when clicking the widget.
+ * - onBuild(aDoc): Only useful for custom widgets (and required there); a
+ * function that will be invoked with the document in which
+ * to build a widget. Should return the DOM node that has
+ * been constructed.
+ * - onBeforeCreated(aDoc): Attached to all non-custom widgets; a function
+ * that will be invoked before the widget gets a DOM node
+ * constructed, passing the document in which that will happen.
+ * This is useful especially for 'view' type widgets that need
+ * to construct their views on the fly (e.g. from bootstrapped
+ * add-ons)
+ * - onCreated(aNode): Attached to all widgets; a function that will be invoked
+ * whenever the widget has a DOM node constructed, passing the
+ * constructed node as an argument.
+ * - onDestroyed(aDoc): Attached to all non-custom widgets; a function that
+ * will be invoked after the widget has a DOM node destroyed,
+ * passing the document from which it was removed. This is
+ * useful especially for 'view' type widgets that need to
+ * cleanup after views that were constructed on the fly.
+ * - onCommand(aEvt): Only useful for button widgets; a function that will be
+ * invoked when the user activates the button.
+ * - onClick(aEvt): Attached to all widgets; a function that will be invoked
+ * when the user clicks the widget.
+ * - onViewShowing(aEvt): Only useful for views; a function that will be
+ * invoked when a user shows your view. If any event
+ * handler calls aEvt.preventDefault(), the view will
+ * not be shown.
+ *
+ * The event's `detail` property is an object with an
+ * `addBlocker` method. Handlers which need to
+ * perform asynchronous operations before the view is
+ * shown may pass this method a Promise, which will
+ * prevent the view from showing until it resolves.
+ * Additionally, if the promise resolves to the exact
+ * value `false`, the view will not be shown.
+ * - onViewHiding(aEvt): Only useful for views; a function that will be
+ * invoked when a user hides your view.
+ * - tooltiptext: string to use for the tooltip of the widget
+ * - label: string to use for the label of the widget
+ * - removable: whether the widget is removable (optional, default: true)
+ * NB: if you specify false here, you must provide a
+ * defaultArea, too.
+ * - overflows: whether widget can overflow when in an overflowable
+ * toolbar (optional, default: true)
+ * - defaultArea: default area to add the widget to
+ * (optional, default: none; required if non-removable)
+ * - shortcutId: id of an element that has a shortcut for this widget
+ * (optional, default: null). This is only used to display
+ * the shortcut as part of the tooltip for builtin widgets
+ * (which have strings inside
+ * customizableWidgets.properties). If you're in an add-on,
+ * you should not set this property.
+ * - showInPrivateBrowsing: whether to show the widget in private browsing
+ * mode (optional, default: true)
+ *
+ * @param aProperties the specifications for the widget.
+ * @return a wrapper around the created widget (see getWidget)
+ */
+ createWidget(aProperties) {
+ return CustomizableUIInternal.wrapWidget(
+ CustomizableUIInternal.createWidget(aProperties)
+ );
+ },
+ /**
+ * Destroy a widget
+ *
+ * If the widget is part of the default placements in an area, this will
+ * remove it from there. It will also remove any DOM instances. However,
+ * it will keep the widget in the placements for whatever area it was
+ * in at the time. You can remove it from there yourself by calling
+ * CustomizableUI.removeWidgetFromArea(aWidgetId).
+ *
+ * @param aWidgetId the ID of the widget to destroy
+ */
+ destroyWidget(aWidgetId) {
+ CustomizableUIInternal.destroyWidget(aWidgetId);
+ },
+ /**
+ * Get a wrapper object with information about the widget.
+ * The object provides the following properties
+ * (all read-only unless otherwise indicated):
+ *
+ * - id: the widget's ID;
+ * - type: the type of widget (button, view, custom). For
+ * XUL-provided widgets, this is always 'custom';
+ * - provider: the provider type of the widget, id est one of
+ * PROVIDER_API or PROVIDER_XUL;
+ * - forWindow(w): a method to obtain a single window wrapper for a widget,
+ * in the window w passed as the only argument;
+ * - instances: an array of all instances (single window wrappers)
+ * of the widget. This array is NOT live;
+ * - areaType: the type of the widget's current area
+ * - isGroup: true; will be false for wrappers around single widget nodes;
+ * - source: for API-provided widgets, whether they are built-in to
+ * Firefox or add-on-provided;
+ * - disabled: for API-provided widgets, whether the widget is currently
+ * disabled. NB: this property is writable, and will toggle
+ * all the widgets' nodes' disabled states;
+ * - label: for API-provied widgets, the label of the widget;
+ * - tooltiptext: for API-provided widgets, the tooltip of the widget;
+ * - showInPrivateBrowsing: for API-provided widgets, whether the widget is
+ * visible in private browsing;
+ *
+ * Single window wrappers obtained through forWindow(someWindow) or from the
+ * instances array have the following properties
+ * (all read-only unless otherwise indicated):
+ *
+ * - id: the widget's ID;
+ * - type: the type of widget (button, view, custom). For
+ * XUL-provided widgets, this is always 'custom';
+ * - provider: the provider type of the widget, id est one of
+ * PROVIDER_API or PROVIDER_XUL;
+ * - node: reference to the corresponding DOM node;
+ * - anchor: the anchor on which to anchor panels opened from this
+ * node. This will point to the overflow chevron on
+ * overflowable toolbars if and only if your widget node
+ * is overflowed, to the anchor for the panel menu
+ * if your widget is inside the panel menu, and to the
+ * node itself in all other cases;
+ * - overflowed: boolean indicating whether the node is currently in the
+ * overflow panel of the toolbar;
+ * - isGroup: false; will be true for the group widget;
+ * - label: for API-provided widgets, convenience getter for the
+ * label attribute of the DOM node;
+ * - tooltiptext: for API-provided widgets, convenience getter for the
+ * tooltiptext attribute of the DOM node;
+ * - disabled: for API-provided widgets, convenience getter *and setter*
+ * for the disabled state of this single widget. Note that
+ * you may prefer to use the group wrapper's getter/setter
+ * instead.
+ *
+ * @param aWidgetId the ID of the widget whose information you need
+ * @return a wrapper around the widget as described above, or null if the
+ * widget is known not to exist (anymore). NB: non-null return
+ * is no guarantee the widget exists because we cannot know in
+ * advance if a XUL widget exists or not.
+ */
+ getWidget(aWidgetId) {
+ return CustomizableUIInternal.wrapWidget(aWidgetId);
+ },
+ /**
+ * Get an array of widget wrappers (see getWidget) for all the widgets
+ * which are currently not in any area (so which are in the palette).
+ *
+ * @param aWindowPalette the palette (and by extension, the window) in which
+ * CustomizableUI should look. This matters because of
+ * course XUL-provided widgets could be available in
+ * some windows but not others, and likewise
+ * API-provided widgets might not exist in a private
+ * window (because of the showInPrivateBrowsing
+ * property).
+ *
+ * @return an array of widget wrappers (see getWidget)
+ */
+ getUnusedWidgets(aWindowPalette) {
+ return CustomizableUIInternal.getUnusedWidgets(aWindowPalette).map(
+ CustomizableUIInternal.wrapWidget,
+ CustomizableUIInternal
+ );
+ },
+ /**
+ * Get an array of all the widget IDs placed in an area. This is roughly
+ * equivalent to fetching the currentset attribute and splitting by commas
+ * in the legacy APIs. Modifying the array will not affect CustomizableUI.
+ *
+ * @param aArea the ID of the area whose placements you want to obtain.
+ * @return an array containing the widget IDs that are in the area.
+ *
+ * NB: will throw if called too early (before placements have been fetched)
+ * or if the area is not currently known to CustomizableUI.
+ */
+ getWidgetIdsInArea(aArea) {
+ if (!gAreas.has(aArea)) {
+ throw new Error("Unknown customization area: " + aArea);
+ }
+ if (!gPlacements.has(aArea)) {
+ throw new Error("Area not yet restored");
+ }
+
+ // We need to clone this, as we don't want to let consumers muck with placements
+ return [...gPlacements.get(aArea)];
+ },
+ /**
+ * Get an array of widget wrappers for all the widgets in an area. This is
+ * the same as calling getWidgetIdsInArea and .map() ing the result through
+ * CustomizableUI.getWidget. Careful: this means that if there are IDs in there
+ * which don't have corresponding DOM nodes (like in the old-style currentset
+ * attribute), there might be nulls in this array, or items for which
+ * wrapper.forWindow(win) will return null.
+ *
+ * @param aArea the ID of the area whose widgets you want to obtain.
+ * @return an array of widget wrappers and/or null values for the widget IDs
+ * placed in an area.
+ *
+ * NB: will throw if called too early (before placements have been fetched)
+ * or if the area is not currently known to CustomizableUI.
+ */
+ getWidgetsInArea(aArea) {
+ return this.getWidgetIdsInArea(aArea).map(
+ CustomizableUIInternal.wrapWidget,
+ CustomizableUIInternal
+ );
+ },
+ /**
+ * Obtain an array of all the area IDs known to CustomizableUI.
+ * This array is created for you, so is modifiable without CustomizableUI
+ * being affected.
+ */
+ get areas() {
+ return [...gAreas.keys()];
+ },
+ /**
+ * Check what kind of area (toolbar or menu panel) an area is. This is
+ * useful if you have a widget that needs to behave differently depending
+ * on its location. Note that widget wrappers have a convenience getter
+ * property (areaType) for this purpose.
+ *
+ * @param aArea the ID of the area whose type you want to know
+ * @return TYPE_TOOLBAR or TYPE_MENU_PANEL depending on the area, null if
+ * the area is unknown.
+ */
+ getAreaType(aArea) {
+ let area = gAreas.get(aArea);
+ return area ? area.get("type") : null;
+ },
+ /**
+ * Check if a toolbar is collapsed by default.
+ *
+ * @param aArea the ID of the area whose default-collapsed state you want to know.
+ * @return `true` or `false` depending on the area, null if the area is unknown,
+ * or its collapsed state cannot normally be controlled by the user
+ */
+ isToolbarDefaultCollapsed(aArea) {
+ let area = gAreas.get(aArea);
+ return area ? area.get("defaultCollapsed") : null;
+ },
+ /**
+ * Obtain the DOM node that is the customize target for an area in a
+ * specific window.
+ *
+ * Areas can have a customization target that does not correspond to the
+ * node itself. In particular, toolbars that have a customizationtarget
+ * attribute set will have their customization target set to that node.
+ * This means widgets will end up in the customization target, not in the
+ * DOM node with the ID that corresponds to the area ID. This is useful
+ * because it lets you have fixed content in a toolbar (e.g. the panel
+ * menu item in the navbar) and have all the customizable widgets use
+ * the customization target.
+ *
+ * Using this API yourself is discouraged; you should generally not need
+ * to be asking for the DOM container node used for a particular area.
+ * In particular, if you're wanting to check it in relation to a widget's
+ * node, your DOM node might not be a direct child of the customize target
+ * in a window if, for instance, the window is in customization mode, or if
+ * this is an overflowable toolbar and the widget has been overflowed.
+ *
+ * @param aArea the ID of the area whose customize target you want to have
+ * @param aWindow the window where you want to fetch the DOM node.
+ * @return the customize target DOM node for aArea in aWindow
+ */
+ getCustomizeTargetForArea(aArea, aWindow) {
+ return CustomizableUIInternal.getCustomizeTargetForArea(aArea, aWindow);
+ },
+ /**
+ * Reset the customization state back to its default.
+ *
+ * This is the nuclear option. You should never call this except if the user
+ * explicitly requests it. Firefox does this when the user clicks the
+ * "Restore Defaults" button in customize mode.
+ */
+ reset() {
+ CustomizableUIInternal.reset();
+ },
+
+ /**
+ * Undo the previous reset, can only be called immediately after a reset.
+ * @return a promise that will be resolved when the operation is complete.
+ */
+ undoReset() {
+ CustomizableUIInternal.undoReset();
+ },
+
+ /**
+ * Remove a custom toolbar added in a previous version of Firefox or using
+ * an add-on. NB: only works on the customizable toolbars generated by
+ * the toolbox itself. Intended for use from CustomizeMode, not by
+ * other consumers.
+ * @param aToolbarId the ID of the toolbar to remove
+ */
+ removeExtraToolbar(aToolbarId) {
+ CustomizableUIInternal.removeExtraToolbar(aToolbarId);
+ },
+
+ /**
+ * Can the last Restore Defaults operation be undone.
+ *
+ * @return A boolean stating whether an undo of the
+ * Restore Defaults can be performed.
+ */
+ get canUndoReset() {
+ return gUIStateBeforeReset.uiCustomizationState != null ||
+ gUIStateBeforeReset.drawInTitlebar != null ||
+ gUIStateBeforeReset.currentTheme != null;
+ },
+
+ /**
+ * Get the placement of a widget. This is by far the best way to obtain
+ * information about what the state of your widget is. The internals of
+ * this call are cheap (no DOM necessary) and you will know where the user
+ * has put your widget.
+ *
+ * @param aWidgetId the ID of the widget whose placement you want to know
+ * @return
+ * {
+ * area: "somearea", // The ID of the area where the widget is placed
+ * position: 42 // the index in the placements array corresponding to
+ * // your widget.
+ * }
+ *
+ * OR
+ *
+ * null // if the widget is not placed anywhere (ie in the palette)
+ */
+ getPlacementOfWidget(aWidgetId, aOnlyRegistered = true, aDeadAreas = false) {
+ return CustomizableUIInternal.getPlacementOfWidget(aWidgetId, aOnlyRegistered, aDeadAreas);
+ },
+ /**
+ * Check if a widget can be removed from the area it's in.
+ *
+ * Note that if you're wanting to move the widget somewhere, you should
+ * generally be checking canWidgetMoveToArea, because that will return
+ * true if the widget is already in the area where you want to move it (!).
+ *
+ * NB: oh, also, this method might lie if the widget in question is a
+ * XUL-provided widget and there are no windows open, because it
+ * can obviously not check anything in this case. It will return
+ * true. You will be able to move the widget elsewhere. However,
+ * once the user reopens a window, the widget will move back to its
+ * 'proper' area automagically.
+ *
+ * @param aWidgetId a widget ID or DOM node to check
+ * @return true if the widget can be removed from its area,
+ * false otherwise.
+ */
+ isWidgetRemovable(aWidgetId) {
+ return CustomizableUIInternal.isWidgetRemovable(aWidgetId);
+ },
+ /**
+ * Check if a widget can be moved to a particular area. Like
+ * isWidgetRemovable but better, because it'll return true if the widget
+ * is already in the right area.
+ *
+ * @param aWidgetId the widget ID or DOM node you want to move somewhere
+ * @param aArea the area ID you want to move it to.
+ * @return true if this is possible, false if it is not. The same caveats as
+ * for isWidgetRemovable apply, however, if no windows are open.
+ */
+ canWidgetMoveToArea(aWidgetId, aArea) {
+ return CustomizableUIInternal.canWidgetMoveToArea(aWidgetId, aArea);
+ },
+ /**
+ * Whether we're in a default state. Note that non-removable non-default
+ * widgets and non-existing widgets are not taken into account in determining
+ * whether we're in the default state.
+ *
+ * NB: this is a property with a getter. The getter is NOT cheap, because
+ * it does smart things with non-removable non-default items, non-existent
+ * items, and so forth. Please don't call unless necessary.
+ */
+ get inDefaultState() {
+ return CustomizableUIInternal.inDefaultState;
+ },
+
+ /**
+ * Set a toolbar's visibility state in all windows.
+ * @param aToolbarId the toolbar whose visibility should be adjusted
+ * @param aIsVisible whether the toolbar should be visible
+ */
+ setToolbarVisibility(aToolbarId, aIsVisible) {
+ CustomizableUIInternal.setToolbarVisibility(aToolbarId, aIsVisible);
+ },
+
+ /**
+ * Get a localized property off a (widget?) object.
+ *
+ * NB: this is unlikely to be useful unless you're in Firefox code, because
+ * this code uses the builtin widget stringbundle, and can't be told
+ * to use add-on-provided strings. It's mainly here as convenience for
+ * custom builtin widgets that build their own DOM but use the same
+ * stringbundle as the other builtin widgets.
+ *
+ * @param aWidget the object whose property we should use to fetch a
+ * localizable string;
+ * @param aProp the property on the object to use for the fetching;
+ * @param aFormatArgs (optional) any extra arguments to use for a formatted
+ * string;
+ * @param aDef (optional) the default to return if we don't find the
+ * string in the stringbundle;
+ *
+ * @return the localized string, or aDef if the string isn't in the bundle.
+ * If no default is provided,
+ * if aProp exists on aWidget, we'll return that,
+ * otherwise we'll return the empty string
+ *
+ */
+ getLocalizedProperty(aWidget, aProp, aFormatArgs, aDef) {
+ return CustomizableUIInternal.getLocalizedProperty(aWidget, aProp,
+ aFormatArgs, aDef);
+ },
+ /**
+ * Utility function to detect, find and set a keyboard shortcut for a menuitem
+ * or (toolbar)button.
+ *
+ * @param aShortcutNode the XUL node where the shortcut will be derived from;
+ * @param aTargetNode (optional) the XUL node on which the `shortcut`
+ * attribute will be set. If NULL, the shortcut will be
+ * set on aShortcutNode;
+ */
+ addShortcut(aShortcutNode, aTargetNode) {
+ return CustomizableUIInternal.addShortcut(aShortcutNode, aTargetNode);
+ },
+ /**
+ * Given a node, walk up to the first panel in its ancestor chain, and
+ * close it.
+ *
+ * @param aNode a node whose panel should be closed;
+ */
+ hidePanelForNode(aNode) {
+ CustomizableUIInternal.hidePanelForNode(aNode);
+ },
+ /**
+ * Check if a widget is a "special" widget: a spring, spacer or separator.
+ *
+ * @param aWidgetId the widget ID to check.
+ * @return true if the widget is 'special', false otherwise.
+ */
+ isSpecialWidget(aWidgetId) {
+ return CustomizableUIInternal.isSpecialWidget(aWidgetId);
+ },
+ /**
+ * Add listeners to a panel that will close it. For use from the menu panel
+ * and overflowable toolbar implementations, unlikely to be useful for
+ * consumers.
+ *
+ * @param aPanel the panel to which listeners should be attached.
+ */
+ addPanelCloseListeners(aPanel) {
+ CustomizableUIInternal.addPanelCloseListeners(aPanel);
+ },
+ /**
+ * Remove close listeners that have been added to a panel with
+ * addPanelCloseListeners. For use from the menu panel and overflowable
+ * toolbar implementations, unlikely to be useful for consumers.
+ *
+ * @param aPanel the panel from which listeners should be removed.
+ */
+ removePanelCloseListeners(aPanel) {
+ CustomizableUIInternal.removePanelCloseListeners(aPanel);
+ },
+ /**
+ * Notify listeners a widget is about to be dragged to an area. For use from
+ * Customize Mode only, do not use otherwise.
+ *
+ * @param aWidgetId the ID of the widget that is being dragged to an area.
+ * @param aArea the ID of the area to which the widget is being dragged.
+ */
+ onWidgetDrag(aWidgetId, aArea) {
+ CustomizableUIInternal.notifyListeners("onWidgetDrag", aWidgetId, aArea);
+ },
+ /**
+ * Notify listeners that a window is entering customize mode. For use from
+ * Customize Mode only, do not use otherwise.
+ * @param aWindow the window entering customize mode
+ */
+ notifyStartCustomizing(aWindow) {
+ CustomizableUIInternal.notifyListeners("onCustomizeStart", aWindow);
+ },
+ /**
+ * Notify listeners that a window is exiting customize mode. For use from
+ * Customize Mode only, do not use otherwise.
+ * @param aWindow the window exiting customize mode
+ */
+ notifyEndCustomizing(aWindow) {
+ CustomizableUIInternal.notifyListeners("onCustomizeEnd", aWindow);
+ },
+
+ /**
+ * Notify toolbox(es) of a particular event. If you don't pass aWindow,
+ * all toolboxes will be notified. For use from Customize Mode only,
+ * do not use otherwise.
+ * @param aEvent the name of the event to send.
+ * @param aDetails optional, the details of the event.
+ * @param aWindow optional, the window in which to send the event.
+ */
+ dispatchToolboxEvent(aEvent, aDetails = {}, aWindow = null) {
+ CustomizableUIInternal.dispatchToolboxEvent(aEvent, aDetails, aWindow);
+ },
+
+ /**
+ * Check whether an area is overflowable.
+ *
+ * @param aAreaId the ID of an area to check for overflowable-ness
+ * @return true if the area is overflowable, false otherwise.
+ */
+ isAreaOverflowable(aAreaId) {
+ let area = gAreas.get(aAreaId);
+ return area ? area.get("type") == this.TYPE_TOOLBAR && area.get("overflowable")
+ : false;
+ },
+ /**
+ * Obtain a string indicating the place of an element. This is intended
+ * for use from customize mode; You should generally use getPlacementOfWidget
+ * instead, which is cheaper because it does not use the DOM.
+ *
+ * @param aElement the DOM node whose place we need to check
+ * @return "toolbar" if the node is in a toolbar, "panel" if it is in the
+ * menu panel, "palette" if it is in the (visible!) customization
+ * palette, undefined otherwise.
+ */
+ getPlaceForItem(aElement) {
+ let place;
+ let node = aElement;
+ while (node && !place) {
+ if (node.localName == "toolbar")
+ place = "toolbar";
+ else if (node.id == CustomizableUI.AREA_PANEL)
+ place = "panel";
+ else if (node.id == "customization-palette")
+ place = "palette";
+
+ node = node.parentNode;
+ }
+ return place;
+ },
+
+ /**
+ * Check if a toolbar is builtin or not.
+ * @param aToolbarId the ID of the toolbar you want to check
+ */
+ isBuiltinToolbar(aToolbarId) {
+ return CustomizableUIInternal._builtinToolbars.has(aToolbarId);
+ },
+};
+Object.freeze(this.CustomizableUI);
+Object.freeze(this.CustomizableUI.windows);
+
+/**
+ * All external consumers of widgets are really interacting with these wrappers
+ * which provide a common interface.
+ */
+
+/**
+ * WidgetGroupWrapper is the common interface for interacting with an entire
+ * widget group - AKA, all instances of a widget across a series of windows.
+ * This particular wrapper is only used for widgets created via the provider
+ * API.
+ */
+function WidgetGroupWrapper(aWidget) {
+ this.isGroup = true;
+
+ const kBareProps = ["id", "source", "type", "disabled", "label", "tooltiptext",
+ "showInPrivateBrowsing", "viewId"];
+ for (let prop of kBareProps) {
+ let propertyName = prop;
+ this.__defineGetter__(propertyName, () => aWidget[propertyName]);
+ }
+
+ this.__defineGetter__("provider", () => CustomizableUI.PROVIDER_API);
+
+ this.__defineSetter__("disabled", function(aValue) {
+ aValue = !!aValue;
+ aWidget.disabled = aValue;
+ for (let [, instance] of aWidget.instances) {
+ instance.disabled = aValue;
+ }
+ });
+
+ this.forWindow = function WidgetGroupWrapper_forWindow(aWindow) {
+ let wrapperMap;
+ if (!gSingleWrapperCache.has(aWindow)) {
+ wrapperMap = new Map();
+ gSingleWrapperCache.set(aWindow, wrapperMap);
+ } else {
+ wrapperMap = gSingleWrapperCache.get(aWindow);
+ }
+ if (wrapperMap.has(aWidget.id)) {
+ return wrapperMap.get(aWidget.id);
+ }
+
+ let instance = aWidget.instances.get(aWindow.document);
+ if (!instance &&
+ (aWidget.showInPrivateBrowsing || !PrivateBrowsingUtils.isWindowPrivate(aWindow))) {
+ instance = CustomizableUIInternal.buildWidget(aWindow.document,
+ aWidget);
+ }
+
+ let wrapper = new WidgetSingleWrapper(aWidget, instance);
+ wrapperMap.set(aWidget.id, wrapper);
+ return wrapper;
+ };
+
+ this.__defineGetter__("instances", function() {
+ // Can't use gBuildWindows here because some areas load lazily:
+ let placement = CustomizableUIInternal.getPlacementOfWidget(aWidget.id);
+ if (!placement) {
+ return [];
+ }
+ let area = placement.area;
+ let buildAreas = gBuildAreas.get(area);
+ if (!buildAreas) {
+ return [];
+ }
+ return Array.from(buildAreas, (node) => this.forWindow(node.ownerGlobal));
+ });
+
+ this.__defineGetter__("areaType", function() {
+ let areaProps = gAreas.get(aWidget.currentArea);
+ return areaProps && areaProps.get("type");
+ });
+
+ Object.freeze(this);
+}
+
+/**
+ * A WidgetSingleWrapper is a wrapper around a single instance of a widget in
+ * a particular window.
+ */
+function WidgetSingleWrapper(aWidget, aNode) {
+ this.isGroup = false;
+
+ this.node = aNode;
+ this.provider = CustomizableUI.PROVIDER_API;
+
+ const kGlobalProps = ["id", "type"];
+ for (let prop of kGlobalProps) {
+ this[prop] = aWidget[prop];
+ }
+
+ const kNodeProps = ["label", "tooltiptext"];
+ for (let prop of kNodeProps) {
+ let propertyName = prop;
+ // Look at the node for these, instead of the widget data, to ensure the
+ // wrapper always reflects this live instance.
+ this.__defineGetter__(propertyName,
+ () => aNode.getAttribute(propertyName));
+ }
+
+ this.__defineGetter__("disabled", () => aNode.disabled);
+ this.__defineSetter__("disabled", function(aValue) {
+ aNode.disabled = !!aValue;
+ });
+
+ this.__defineGetter__("anchor", function() {
+ let anchorId;
+ // First check for an anchor for the area:
+ let placement = CustomizableUIInternal.getPlacementOfWidget(aWidget.id);
+ if (placement) {
+ anchorId = gAreas.get(placement.area).get("anchor");
+ }
+ if (!anchorId) {
+ anchorId = aNode.getAttribute("cui-anchorid");
+ }
+
+ return anchorId ? aNode.ownerDocument.getElementById(anchorId)
+ : aNode;
+ });
+
+ this.__defineGetter__("overflowed", function() {
+ return aNode.getAttribute("overflowedItem") == "true";
+ });
+
+ Object.freeze(this);
+}
+
+/**
+ * XULWidgetGroupWrapper is the common interface for interacting with an entire
+ * widget group - AKA, all instances of a widget across a series of windows.
+ * This particular wrapper is only used for widgets created via the old-school
+ * XUL method (overlays, or programmatically injecting toolbaritems, or other
+ * such things).
+ */
+// XXXunf Going to need to hook this up to some events to keep it all live.
+function XULWidgetGroupWrapper(aWidgetId) {
+ this.isGroup = true;
+ this.id = aWidgetId;
+ this.type = "custom";
+ this.provider = CustomizableUI.PROVIDER_XUL;
+
+ this.forWindow = function XULWidgetGroupWrapper_forWindow(aWindow) {
+ let wrapperMap;
+ if (!gSingleWrapperCache.has(aWindow)) {
+ wrapperMap = new Map();
+ gSingleWrapperCache.set(aWindow, wrapperMap);
+ } else {
+ wrapperMap = gSingleWrapperCache.get(aWindow);
+ }
+ if (wrapperMap.has(aWidgetId)) {
+ return wrapperMap.get(aWidgetId);
+ }
+
+ let instance = aWindow.document.getElementById(aWidgetId);
+ if (!instance) {
+ // Toolbar palettes aren't part of the document, so elements in there
+ // won't be found via document.getElementById().
+ instance = aWindow.gNavToolbox.palette.getElementsByAttribute("id", aWidgetId)[0];
+ }
+
+ let wrapper = new XULWidgetSingleWrapper(aWidgetId, instance, aWindow.document);
+ wrapperMap.set(aWidgetId, wrapper);
+ return wrapper;
+ };
+
+ this.__defineGetter__("areaType", function() {
+ let placement = CustomizableUIInternal.getPlacementOfWidget(aWidgetId);
+ if (!placement) {
+ return null;
+ }
+
+ let areaProps = gAreas.get(placement.area);
+ return areaProps && areaProps.get("type");
+ });
+
+ this.__defineGetter__("instances", function() {
+ return Array.from(gBuildWindows, (wins) => this.forWindow(wins[0]));
+ });
+
+ Object.freeze(this);
+}
+
+/**
+ * A XULWidgetSingleWrapper is a wrapper around a single instance of a XUL
+ * widget in a particular window.
+ */
+function XULWidgetSingleWrapper(aWidgetId, aNode, aDocument) {
+ this.isGroup = false;
+
+ this.id = aWidgetId;
+ this.type = "custom";
+ this.provider = CustomizableUI.PROVIDER_XUL;
+
+ let weakDoc = Cu.getWeakReference(aDocument);
+ // If we keep a strong ref, the weak ref will never die, so null it out:
+ aDocument = null;
+
+ this.__defineGetter__("node", function() {
+ // If we've set this to null (further down), we're sure there's nothing to
+ // be gotten here, so bail out early:
+ if (!weakDoc) {
+ return null;
+ }
+ if (aNode) {
+ // Return the last known node if it's still in the DOM...
+ if (aNode.ownerDocument.contains(aNode)) {
+ return aNode;
+ }
+ // ... or the toolbox
+ let toolbox = aNode.ownerGlobal.gNavToolbox;
+ if (toolbox && toolbox.palette && aNode.parentNode == toolbox.palette) {
+ return aNode;
+ }
+ // If it isn't, clear the cached value and fall through to the "slow" case:
+ aNode = null;
+ }
+
+ let doc = weakDoc.get();
+ if (doc) {
+ // Store locally so we can cache the result:
+ aNode = CustomizableUIInternal.findWidgetInWindow(aWidgetId, doc.defaultView);
+ return aNode;
+ }
+ // The weakref to the document is dead, we're done here forever more:
+ weakDoc = null;
+ return null;
+ });
+
+ this.__defineGetter__("anchor", function() {
+ let anchorId;
+ // First check for an anchor for the area:
+ let placement = CustomizableUIInternal.getPlacementOfWidget(aWidgetId);
+ if (placement) {
+ anchorId = gAreas.get(placement.area).get("anchor");
+ }
+
+ let node = this.node;
+ if (!anchorId && node) {
+ anchorId = node.getAttribute("cui-anchorid");
+ }
+
+ return (anchorId && node) ? node.ownerDocument.getElementById(anchorId) : node;
+ });
+
+ this.__defineGetter__("overflowed", function() {
+ let node = this.node;
+ if (!node) {
+ return false;
+ }
+ return node.getAttribute("overflowedItem") == "true";
+ });
+
+ Object.freeze(this);
+}
+
+const LAZY_RESIZE_INTERVAL_MS = 200;
+const OVERFLOW_PANEL_HIDE_DELAY_MS = 500;
+
+function OverflowableToolbar(aToolbarNode) {
+ this._toolbar = aToolbarNode;
+ this._collapsed = new Map();
+ this._enabled = true;
+
+ this._toolbar.setAttribute("overflowable", "true");
+ let doc = this._toolbar.ownerDocument;
+ this._target = this._toolbar.customizationTarget;
+ this._list = doc.getElementById(this._toolbar.getAttribute("overflowtarget"));
+ this._list.toolbox = this._toolbar.toolbox;
+ this._list.customizationTarget = this._list;
+
+ let window = this._toolbar.ownerGlobal;
+ if (window.gBrowserInit.delayedStartupFinished) {
+ this.init();
+ } else {
+ Services.obs.addObserver(this, "browser-delayed-startup-finished", false);
+ }
+}
+
+OverflowableToolbar.prototype = {
+ initialized: false,
+ _forceOnOverflow: false,
+
+ observe(aSubject, aTopic, aData) {
+ if (aTopic == "browser-delayed-startup-finished" &&
+ aSubject == this._toolbar.ownerGlobal) {
+ Services.obs.removeObserver(this, "browser-delayed-startup-finished");
+ this.init();
+ }
+ },
+
+ init() {
+ let doc = this._toolbar.ownerDocument;
+ let window = doc.defaultView;
+ window.addEventListener("resize", this);
+ window.gNavToolbox.addEventListener("customizationstarting", this);
+ window.gNavToolbox.addEventListener("aftercustomization", this);
+
+ let chevronId = this._toolbar.getAttribute("overflowbutton");
+ this._chevron = doc.getElementById(chevronId);
+ this._chevron.addEventListener("command", this);
+ this._chevron.addEventListener("dragover", this);
+ this._chevron.addEventListener("dragend", this);
+
+ let panelId = this._toolbar.getAttribute("overflowpanel");
+ this._panel = doc.getElementById(panelId);
+ this._panel.addEventListener("popuphiding", this);
+ CustomizableUIInternal.addPanelCloseListeners(this._panel);
+
+ CustomizableUI.addListener(this);
+
+ // The 'overflow' event may have been fired before init was called.
+ if (this._toolbar.overflowedDuringConstruction) {
+ this.onOverflow(this._toolbar.overflowedDuringConstruction);
+ this._toolbar.overflowedDuringConstruction = null;
+ }
+
+ this.initialized = true;
+ },
+
+ uninit() {
+ this._toolbar.removeEventListener("overflow", this._toolbar);
+ this._toolbar.removeEventListener("underflow", this._toolbar);
+ this._toolbar.removeAttribute("overflowable");
+
+ if (!this.initialized) {
+ Services.obs.removeObserver(this, "browser-delayed-startup-finished");
+ return;
+ }
+
+ this._disable();
+
+ let window = this._toolbar.ownerGlobal;
+ window.removeEventListener("resize", this);
+ window.gNavToolbox.removeEventListener("customizationstarting", this);
+ window.gNavToolbox.removeEventListener("aftercustomization", this);
+ this._chevron.removeEventListener("command", this);
+ this._chevron.removeEventListener("dragover", this);
+ this._chevron.removeEventListener("dragend", this);
+ this._panel.removeEventListener("popuphiding", this);
+ CustomizableUI.removeListener(this);
+ CustomizableUIInternal.removePanelCloseListeners(this._panel);
+ },
+
+ handleEvent(aEvent) {
+ switch (aEvent.type) {
+ case "aftercustomization":
+ this._enable();
+ break;
+ case "command":
+ if (aEvent.target == this._chevron) {
+ this._onClickChevron(aEvent);
+ } else {
+ this._panel.hidePopup();
+ }
+ break;
+ case "customizationstarting":
+ this._disable();
+ break;
+ case "dragover":
+ this._showWithTimeout();
+ break;
+ case "dragend":
+ this._panel.hidePopup();
+ break;
+ case "popuphiding":
+ this._onPanelHiding(aEvent);
+ break;
+ case "resize":
+ this._onResize(aEvent);
+ }
+ },
+
+ show() {
+ if (this._panel.state == "open") {
+ return Promise.resolve();
+ }
+ return new Promise(resolve => {
+ let doc = this._panel.ownerDocument;
+ this._panel.hidden = false;
+ let contextMenu = doc.getElementById(this._panel.getAttribute("context"));
+ gELS.addSystemEventListener(contextMenu, "command", this, true);
+ let anchor = doc.getAnonymousElementByAttribute(this._chevron, "class", "toolbarbutton-icon");
+ this._panel.openPopup(anchor || this._chevron);
+ this._chevron.open = true;
+
+ let overflowableToolbarInstance = this;
+ this._panel.addEventListener("popupshown", function onPopupShown(aEvent) {
+ this.removeEventListener("popupshown", onPopupShown);
+ this.addEventListener("dragover", overflowableToolbarInstance);
+ this.addEventListener("dragend", overflowableToolbarInstance);
+ resolve();
+ });
+ });
+ },
+
+ _onClickChevron(aEvent) {
+ if (this._chevron.open) {
+ this._panel.hidePopup();
+ this._chevron.open = false;
+ } else {
+ this.show();
+ }
+ },
+
+ _onPanelHiding(aEvent) {
+ this._chevron.open = false;
+ this._panel.removeEventListener("dragover", this);
+ this._panel.removeEventListener("dragend", this);
+ let doc = aEvent.target.ownerDocument;
+ let contextMenu = doc.getElementById(this._panel.getAttribute("context"));
+ gELS.removeSystemEventListener(contextMenu, "command", this, true);
+ },
+
+ onOverflow(aEvent) {
+ // The rangeParent check is here because of bug 1111986 and ensuring that
+ // overflow events from the bookmarks toolbar items or similar things that
+ // manage their own overflow don't trigger an overflow on the entire toolbar
+ if (!this._enabled ||
+ (aEvent && aEvent.target != this._toolbar.customizationTarget) ||
+ (aEvent && aEvent.rangeParent))
+ return;
+
+ let child = this._target.lastChild;
+
+ while (child && this._target.scrollLeftMin != this._target.scrollLeftMax) {
+ let prevChild = child.previousSibling;
+
+ if (child.getAttribute("overflows") != "false") {
+ this._collapsed.set(child.id, this._target.clientWidth);
+ child.setAttribute("overflowedItem", true);
+ child.setAttribute("cui-anchorid", this._chevron.id);
+ CustomizableUIInternal.notifyListeners("onWidgetOverflow", child, this._target);
+
+ this._list.insertBefore(child, this._list.firstChild);
+ if (!this._toolbar.hasAttribute("overflowing")) {
+ CustomizableUI.addListener(this);
+ }
+ this._toolbar.setAttribute("overflowing", "true");
+ }
+ child = prevChild;
+ }
+
+ let win = this._target.ownerGlobal;
+ win.UpdateUrlbarSearchSplitterState();
+ },
+
+ _onResize(aEvent) {
+ if (!this._lazyResizeHandler) {
+ this._lazyResizeHandler = new DeferredTask(this._onLazyResize.bind(this),
+ LAZY_RESIZE_INTERVAL_MS);
+ }
+ this._lazyResizeHandler.arm();
+ },
+
+ _moveItemsBackToTheirOrigin(shouldMoveAllItems) {
+ let placements = gPlacements.get(this._toolbar.id);
+ while (this._list.firstChild) {
+ let child = this._list.firstChild;
+ let minSize = this._collapsed.get(child.id);
+
+ if (!shouldMoveAllItems &&
+ minSize &&
+ this._target.clientWidth <= minSize) {
+ return;
+ }
+
+ this._collapsed.delete(child.id);
+ let beforeNodeIndex = placements.indexOf(child.id) + 1;
+ // If this is a skipintoolbarset item, meaning it doesn't occur in the placements list,
+ // we're inserting it at the end. This will mean first-in, first-out (more or less)
+ // leading to as little change in order as possible.
+ if (beforeNodeIndex == 0) {
+ beforeNodeIndex = placements.length;
+ }
+ let inserted = false;
+ for (; beforeNodeIndex < placements.length; beforeNodeIndex++) {
+ let beforeNode = this._target.getElementsByAttribute("id", placements[beforeNodeIndex])[0];
+ if (beforeNode) {
+ this._target.insertBefore(child, beforeNode);
+ inserted = true;
+ break;
+ }
+ }
+ if (!inserted) {
+ this._target.appendChild(child);
+ }
+ child.removeAttribute("cui-anchorid");
+ child.removeAttribute("overflowedItem");
+ CustomizableUIInternal.notifyListeners("onWidgetUnderflow", child, this._target);
+ }
+
+ let win = this._target.ownerGlobal;
+ win.UpdateUrlbarSearchSplitterState();
+
+ if (!this._collapsed.size) {
+ this._toolbar.removeAttribute("overflowing");
+ CustomizableUI.removeListener(this);
+ }
+ },
+
+ _onLazyResize() {
+ if (!this._enabled)
+ return;
+
+ if (this._target.scrollLeftMin != this._target.scrollLeftMax) {
+ this.onOverflow();
+ } else {
+ this._moveItemsBackToTheirOrigin();
+ }
+ },
+
+ _disable() {
+ this._enabled = false;
+ this._moveItemsBackToTheirOrigin(true);
+ if (this._lazyResizeHandler) {
+ this._lazyResizeHandler.disarm();
+ }
+ },
+
+ _enable() {
+ this._enabled = true;
+ this.onOverflow();
+ },
+
+ onWidgetBeforeDOMChange(aNode, aNextNode, aContainer) {
+ if (aContainer != this._target && aContainer != this._list) {
+ return;
+ }
+ // When we (re)move an item, update all the items that come after it in the list
+ // with the minsize *of the item before the to-be-removed node*. This way, we
+ // ensure that we try to move items back as soon as that's possible.
+ if (aNode.parentNode == this._list) {
+ let updatedMinSize;
+ if (aNode.previousSibling) {
+ updatedMinSize = this._collapsed.get(aNode.previousSibling.id);
+ } else {
+ // Force (these) items to try to flow back into the bar:
+ updatedMinSize = 1;
+ }
+ let nextItem = aNode.nextSibling;
+ while (nextItem) {
+ this._collapsed.set(nextItem.id, updatedMinSize);
+ nextItem = nextItem.nextSibling;
+ }
+ }
+ },
+
+ onWidgetAfterDOMChange(aNode, aNextNode, aContainer) {
+ if (aContainer != this._target && aContainer != this._list) {
+ return;
+ }
+
+ let nowInBar = aNode.parentNode == aContainer;
+ let nowOverflowed = aNode.parentNode == this._list;
+ let wasOverflowed = this._collapsed.has(aNode.id);
+
+ // If this wasn't overflowed before...
+ if (!wasOverflowed) {
+ // ... but it is now, then we added to the overflow panel. Exciting stuff:
+ if (nowOverflowed) {
+ // NB: we're guaranteed that it has a previousSibling, because if it didn't,
+ // we would have added it to the toolbar instead. See getOverflowedNextNode.
+ let prevId = aNode.previousSibling.id;
+ let minSize = this._collapsed.get(prevId);
+ this._collapsed.set(aNode.id, minSize);
+ aNode.setAttribute("cui-anchorid", this._chevron.id);
+ aNode.setAttribute("overflowedItem", true);
+ CustomizableUIInternal.notifyListeners("onWidgetOverflow", aNode, this._target);
+ } else if (!nowInBar) {
+ // If it is not overflowed and not in the toolbar, and was not overflowed
+ // either, it moved out of the toolbar. That means there's now space in there!
+ // Let's try to move stuff back:
+ this._moveItemsBackToTheirOrigin(true);
+ }
+ // If it's in the toolbar now, then we don't care. An overflow event may
+ // fire afterwards; that's ok!
+ } else if (!nowOverflowed) {
+ // If it used to be overflowed...
+ // ... and isn't anymore, let's remove our bookkeeping:
+ this._collapsed.delete(aNode.id);
+ aNode.removeAttribute("cui-anchorid");
+ aNode.removeAttribute("overflowedItem");
+ CustomizableUIInternal.notifyListeners("onWidgetUnderflow", aNode, this._target);
+
+ if (!this._collapsed.size) {
+ this._toolbar.removeAttribute("overflowing");
+ CustomizableUI.removeListener(this);
+ }
+ } else if (aNode.previousSibling) {
+ // but if it still is, it must have changed places. Bookkeep:
+ let prevId = aNode.previousSibling.id;
+ let minSize = this._collapsed.get(prevId);
+ this._collapsed.set(aNode.id, minSize);
+ } else {
+ // If it's now the first item in the overflow list,
+ // maybe we can return it:
+ this._moveItemsBackToTheirOrigin();
+ }
+ },
+
+ findOverflowedInsertionPoints(aNode) {
+ let newNodeCanOverflow = aNode.getAttribute("overflows") != "false";
+ let areaId = this._toolbar.id;
+ let placements = gPlacements.get(areaId);
+ let nodeIndex = placements.indexOf(aNode.id);
+ let nodeBeforeNewNodeIsOverflown = false;
+
+ let loopIndex = -1;
+ while (++loopIndex < placements.length) {
+ let nextNodeId = placements[loopIndex];
+ if (loopIndex > nodeIndex) {
+ if (newNodeCanOverflow && this._collapsed.has(nextNodeId)) {
+ let nextNode = this._list.getElementsByAttribute("id", nextNodeId).item(0);
+ if (nextNode) {
+ return [this._list, nextNode];
+ }
+ }
+ if (!nodeBeforeNewNodeIsOverflown || !newNodeCanOverflow) {
+ let nextNode = this._target.getElementsByAttribute("id", nextNodeId).item(0);
+ if (nextNode) {
+ return [this._target, nextNode];
+ }
+ }
+ } else if (loopIndex < nodeIndex && this._collapsed.has(nextNodeId)) {
+ nodeBeforeNewNodeIsOverflown = true;
+ }
+ }
+
+ let containerForAppending = (this._collapsed.size && newNodeCanOverflow) ?
+ this._list : this._target;
+ return [containerForAppending, null];
+ },
+
+ getContainerFor(aNode) {
+ if (aNode.getAttribute("overflowedItem") == "true") {
+ return this._list;
+ }
+ return this._target;
+ },
+
+ _hideTimeoutId: null,
+ _showWithTimeout() {
+ this.show().then(function() {
+ let window = this._toolbar.ownerGlobal;
+ if (this._hideTimeoutId) {
+ window.clearTimeout(this._hideTimeoutId);
+ }
+ this._hideTimeoutId = window.setTimeout(() => {
+ if (!this._panel.firstChild.matches(":hover")) {
+ this._panel.hidePopup();
+ }
+ }, OVERFLOW_PANEL_HIDE_DELAY_MS);
+ }.bind(this));
+ },
+};
+
+CustomizableUIInternal.initialize();