gecko/browser/components/customizableui/CustomizableUI.jsm

4329 lines
153 KiB
JavaScript

/* 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.defineLazyModuleGetter(this, "Promise",
"resource://gre/modules/Promise.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");
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";
/**
* 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 = 4;
/**
* 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,
gUIStateBeforeReset: null,
};
var gModuleName = "[CustomizableUI]";
#include logging.js
var CustomizableUIInternal = {
initialize: function() {
LOG("Initializing");
this.addListener(this);
this._defineBuiltInWidgets();
this.loadSavedState();
this._introduceNewBuiltinWidgets();
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",
#ifndef MOZ_DEV_EDITION
"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");
}
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",
#ifdef MOZ_DEV_EDITION
"developer-button",
#endif
"bookmarks-menu-button",
"downloads-button",
"home-button",
"loop-button",
];
// Insert the Pocket button after the bookmarks button if it's present.
for (let widgetDefinition of CustomizableWidgets) {
if (widgetDefinition.id == "pocket-button") {
let idx = navbarPlacements.indexOf("bookmarks-menu-button") + 1;
navbarPlacements.splice(idx, 0, widgetDefinition.id);
break;
}
}
if (Services.prefs.getBoolPref(kPrefWebIDEInNavbar)) {
navbarPlacements.push("webide-button");
}
this.registerArea(CustomizableUI.AREA_NAVBAR, {
legacy: true,
type: CustomizableUI.TYPE_TOOLBAR,
overflowable: true,
defaultPlacements: navbarPlacements,
defaultCollapsed: false,
}, true);
#ifndef XP_MACOSX
this.registerArea(CustomizableUI.AREA_MENUBAR, {
legacy: true,
type: CustomizableUI.TYPE_TOOLBAR,
defaultPlacements: [
"menubar-items",
],
get defaultCollapsed() {
#ifdef MENUBAR_CAN_AUTOHIDE
#if defined(MOZ_WIDGET_GTK) || defined(MOZ_WIDGET_QT)
return true;
#else
// This is duplicated logic from /browser/base/jar.mn
// for win6BrowserOverlay.xul.
return Services.appinfo.OS == "WINNT" &&
Services.sysinfo.getProperty("version") != "5.1";
#endif
#else
return false;
#endif
}
}, 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() {
return new Set([
CustomizableUI.AREA_NAVBAR,
CustomizableUI.AREA_BOOKMARKS,
CustomizableUI.AREA_TABSTRIP,
CustomizableUI.AREA_ADDONBAR,
#ifndef XP_MACOSX
CustomizableUI.AREA_MENUBAR,
#endif
]);
},
_defineBuiltInWidgets: function() {
for (let widgetDefinition of CustomizableWidgets) {
this.createBuiltinWidget(widgetDefinition);
}
},
_introduceNewBuiltinWidgets: function() {
// 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 [id, 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");
}
},
_placeNewDefaultWidgetsInArea: function(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: function(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: function(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: function(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: function(aToolbar, aExistingChildren) {
let area = aToolbar.id;
if (gBuildAreas.has(area) && gBuildAreas.get(area).has(aToolbar)) {
return;
}
let document = aToolbar.ownerDocument;
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: function(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("Unknown widget: " + id);
continue;
}
// If the placements have items in them which are (now) no longer removable,
// we shouldn't be moving them:
if (provider == CustomizableUI.PROVIDER_API) {
let widgetInfo = gPalette.get(id);
if (!widgetInfo.removable && aArea != widgetInfo.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 && provider == CustomizableUI.PROVIDER_API) {
let widget = gPalette.get(id);
if (!widget.showInPrivateBrowsing && inPrivateWindow) {
continue;
}
}
this.ensureButtonContextMenu(node, aAreaNode);
if (node.localName == "toolbarbutton") {
if (areaIsPanel) {
node.setAttribute("wrap", "true");
} else {
node.removeAttribute("wrap");
}
}
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("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: function(aPanel) {
gELS.addSystemEventListener(aPanel, "click", this, false);
gELS.addSystemEventListener(aPanel, "keypress", this, false);
let win = aPanel.ownerDocument.defaultView;
if (!gPanelsForWindow.has(win)) {
gPanelsForWindow.set(win, new Set());
}
gPanelsForWindow.get(win).add(this._getPanelForNode(aPanel));
},
removePanelCloseListeners: function(aPanel) {
gELS.removeSystemEventListener(aPanel, "click", this, false);
gELS.removeSystemEventListener(aPanel, "keypress", this, false);
let win = aPanel.ownerDocument.defaultView;
let panels = gPanelsForWindow.get(win);
if (panels) {
panels.delete(this._getPanelForNode(aPanel));
}
},
ensureButtonContextMenu: function(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: function(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: function(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("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("Searching for " + aWidgetId + " in toolbox.");
let node = this.findWidgetInWindow(aWidgetId, aWindow);
if (node) {
return [ CustomizableUI.PROVIDER_XUL, node ];
}
LOG("No node for " + aWidgetId + " found.");
return [null, null];
},
registerMenuPanel: function(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: function(aWidgetId, aArea, aPosition) {
this.insertNode(aWidgetId, aArea, aPosition, true);
if (!gResetting) {
this._clearPreviousUIState();
}
},
onWidgetRemoved: function(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.ownerDocument.defaultView;
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)) {
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: function(aWidgetId, aArea, aOldPosition, aNewPosition) {
this.insertNode(aWidgetId, aArea, aNewPosition);
if (!gResetting) {
this._clearPreviousUIState();
}
},
onCustomizeEnd: function(aWindow) {
this._clearPreviousUIState();
},
registerBuildArea: function(aArea, aNode) {
// We ensure that the window is registered to have its customization data
// cleaned up when unloading.
let window = aNode.ownerDocument.defaultView;
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: function(aWindow) {
if (!gBuildWindows.has(aWindow)) {
gBuildWindows.set(aWindow, new Set());
aWindow.addEventListener("unload", this);
aWindow.addEventListener("command", this, true);
this.notifyListeners("onWindowOpened", aWindow);
}
},
unregisterBuildWindow: function(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 [area, areaMap] of gPendingBuildAreas) {
let toDelete = [];
for (let [areaNode, ] of areaMap) {
if (areaNode.ownerDocument == document) {
toDelete.push(areaNode);
}
}
for (let areaNode of toDelete) {
areaMap.delete(toDelete);
}
}
this.notifyListeners("onWindowClosed", aWindow);
},
setLocationAttributes: function(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: function(aNode) {
aNode.removeAttribute("cui-areatype");
aNode.removeAttribute("cui-anchorid");
},
insertNode: function(aWidgetId, aArea, aPosition, isNew) {
let areaNodes = gBuildAreas.get(aArea);
if (!areaNodes) {
return;
}
let placements = gPlacements.get(aArea);
if (!placements) {
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: function(aWidgetId, aAreaNode, isNew) {
let window = aAreaNode.ownerDocument.defaultView;
let showInPrivateBrowsing = gPalette.has(aWidgetId)
? gPalette.get(aWidgetId).showInPrivateBrowsing
: true;
if (!showInPrivateBrowsing && PrivateBrowsingUtils.isWindowPrivate(window)) {
return;
}
let [, widgetNode] = this.getWidgetNode(aWidgetId, window);
if (!widgetNode) {
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: function(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: function(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: function(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: function(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: function(aId) {
return (aId.startsWith(kSpecialWidgetPfx) ||
aId.startsWith("separator") ||
aId.startsWith("spring") ||
aId.startsWith("spacer"));
},
ensureSpecialWidgetId: function(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: function(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: function(aId, aWindow) {
if (!gBuildWindows.has(aWindow)) {
throw new Error("Build window not registered");
}
if (!aId) {
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 a node with a matching ID within
// the palette.
let node = toolbox.palette.getElementsByAttribute("id", aId)[0];
if (node) {
// 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 (!node.hasAttribute("removable")) {
node.setAttribute("removable", true);
}
return node;
}
}
}
return null;
},
buildWidget: function(aDocument, aWidget) {
if (typeof aWidget == "string") {
aWidget = gPalette.get(aWidget);
}
if (!aWidget) {
throw new Error("buildWidget was passed a non-widget to build.");
}
LOG("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))
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);
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 {
ERROR("Key element with id '" + aWidget.shortcutId + "' for widget '" + aWidget.id +
"' not found!");
}
}
let tooltip = this.getLocalizedProperty(aWidget, "tooltiptext", additionalTooltipArguments);
node.setAttribute("tooltiptext", tooltip);
node.setAttribute("class", "toolbarbutton-1 chromeclass-toolbar-additional");
let commandHandler = this.handleWidgetCommand.bind(this, aWidget, node);
node.addEventListener("command", commandHandler, false);
let clickHandler = this.handleWidgetClick.bind(this, aWidget, node);
node.addEventListener("click", clickHandler, false);
// If the widget has a view, and has view showing / hiding listeners,
// hook those up to this widget.
if (aWidget.type == "view") {
LOG("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], false);
}
}
LOG("Widget " + aWidget.id + " showing and hiding event handlers set.");
} else {
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: function(aWidget, aProp, aFormatArgs, aDef) {
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]) {
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 (!def) {
ERROR("Could not localize property '" + name + "'.");
}
}
return def;
},
addShortcut: function(aShortcutNode, aTargetNode) {
if (!aTargetNode)
aTargetNode = aShortcutNode;
let document = aShortcutNode.ownerDocument;
// Detect if we've already been here before.
if (!aTargetNode || aTargetNode.hasAttribute("shortcut"))
return;
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: function(aWidget, aNode, aEvent) {
LOG("handleWidgetCommand");
if (aWidget.type == "button") {
if (aWidget.onCommand) {
try {
aWidget.onCommand.call(null, aEvent);
} catch (e) {
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.ownerDocument.defaultView;
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: function(aWidget, aNode, aEvent) {
LOG("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: function(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: function(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: function(aNode) {
let panel = this._getPanelForNode(aNode);
if (panel) {
panel.hidePopup();
}
},
maybeAutoHidePanel: function(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("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: function(aWindowPalette) {
let window = aWindowPalette.ownerDocument.defaultView;
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("Iterating the actual nodes of the window palette");
for (let node of aWindowPalette.children) {
LOG("In palette children: " + node.id);
if (node.id && !this.getPlacementOfWidget(node.id)) {
widgets.add(node.id);
}
}
return [...widgets];
},
getPlacementOfWidget: function(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: area, position: index };
}
}
return null;
},
widgetExists: function(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: function(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: function(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: function(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: function() {
let state = null;
try {
state = Services.prefs.getCharPref(kPrefCustomizationState);
} catch (e) {
LOG("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("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: function(aArea, aLegacyState) {
let placementsPreexisted = gPlacements.has(aArea);
this.beginBatchUpdate();
try {
gRestoring = true;
let restored = false;
if (placementsPreexisted) {
LOG("Restoring " + aArea + " from pre-existing placements");
for (let [position, id] in Iterator(gPlacements.get(aArea))) {
this.moveWidgetWithinArea(id, position);
}
gDirty = false;
restored = true;
} else {
gPlacements.set(aArea, []);
}
if (!restored && gSavedState && aArea in gSavedState.placements) {
LOG("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("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("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("Placements for " + aArea + ":\n\t" + gPlacements.get(aArea).join("\n\t"));
gRestoring = false;
} finally {
this.endBatchUpdate();
}
},
saveState: function() {
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("Saving state.");
let serialized = JSON.stringify(state, this.serializerHelper);
LOG("State saved as: " + serialized);
Services.prefs.setCharPref(kPrefCustomizationState, serialized);
gDirty = false;
},
serializerHelper: function(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: function() {
gInBatchStack++;
},
endBatchUpdate: function(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: function(aListener) {
gListeners.add(aListener);
},
removeListener: function(aListener) {
if (aListener == this) {
return;
}
gListeners.delete(aListener);
},
notifyListeners: function(aEvent, ...aArgs) {
if (gRestoring) {
return;
}
for (let listener of gListeners) {
try {
if (typeof listener[aEvent] == "function") {
listener[aEvent].apply(listener, aArgs);
}
} catch (e) {
ERROR(e + " -- " + e.fileName + ":" + e.lineNumber);
}
}
},
_dispatchToolboxEventToWindow: function(aEventType, aDetails, aWindow) {
let evt = new aWindow.CustomEvent(aEventType, {
bubbles: true,
cancelable: true,
detail: aDetails
});
aWindow.gNavToolbox.dispatchEvent(evt);
},
dispatchToolboxEvent: function(aEventType, aDetails={}, aWindow=null) {
if (aWindow) {
return this._dispatchToolboxEventToWindow(aEventType, aDetails, aWindow);
}
for (let [win, ] of gBuildWindows) {
this._dispatchToolboxEventToWindow(aEventType, aDetails, win);
}
},
createWidget: function(aProperties) {
let widget = this.normalizeWidget(aProperties, CustomizableUI.SOURCE_EXTERNAL);
//XXXunf This should probably throw.
if (!widget) {
return;
}
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, placements] 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: function(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) {
ERROR("Error creating builtin widget: " + aData.id);
return;
}
LOG("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: function(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: function(aData, aSource) {
let widget = {
implementation: aData,
source: aSource || CustomizableUI.SOURCE_EXTERNAL,
instances: new Map(),
currentArea: null,
removable: true,
overflows: true,
defaultArea: null,
shortcutId: null,
tooltiptext: null,
showInPrivateBrowsing: true,
_introducedInVersion: -1,
};
if (typeof aData.id != "string" || !/^[a-z0-9-_]{1,}$/i.test(aData.id)) {
ERROR("Given an illegal id in normalizeWidget: " + aData.id);
return null;
}
delete widget.implementation.currentArea;
widget.implementation.__defineGetter__("currentArea", function() widget.currentArea);
const kReqStringProps = ["id"];
for (let prop of kReqStringProps) {
if (typeof aData[prop] != "string") {
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"];
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) {
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);
if (widget.type == "button") {
widget.onCommand = typeof aData.onCommand == "function" ?
aData.onCommand :
null;
} else if (widget.type == "view") {
if (typeof aData.viewId != "string") {
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: function(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);
}
};
},
destroyWidget: function(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], false);
}
}
}
}
}
gPalette.delete(aWidgetId);
gGroupWrapperCache.delete(aWidgetId);
this.notifyListeners("onWidgetDestroyed", aWidgetId);
},
getCustomizeTargetForArea: function(aArea, aWindow) {
let buildAreaNodes = gBuildAreas.get(aArea);
if (!buildAreaNodes) {
return null;
}
for (let node of buildAreaNodes) {
if (node.ownerDocument.defaultView === aWindow) {
return node.customizationTarget ? node.customizationTarget : node;
}
}
return null;
},
reset: function() {
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: function() {
try {
gUIStateBeforeReset.drawInTitlebar = Services.prefs.getBoolPref(kPrefDrawInTitlebar);
gUIStateBeforeReset.uiCustomizationState = Services.prefs.getCharPref(kPrefCustomizationState);
} catch(e) { }
this._resetExtraToolbars();
Services.prefs.clearUserPref(kPrefCustomizationState);
Services.prefs.clearUserPref(kPrefDrawInTitlebar);
LOG("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: function(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: function() {
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.ownerDocument.defaultView;
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: function() {
if (gUIStateBeforeReset.uiCustomizationState == null ||
gUIStateBeforeReset.drawInTitlebar == null) {
return;
}
gUndoResetting = true;
let uiCustomizationState = gUIStateBeforeReset.uiCustomizationState;
let drawInTitlebar = gUIStateBeforeReset.drawInTitlebar;
// 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);
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: function() {
Object.getOwnPropertyNames(gUIStateBeforeReset).forEach((prop) => {
gUIStateBeforeReset[prop] = null;
});
},
removeExtraToolbar: function(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: function(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: function(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: function(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.ownerDocument.defaultView == 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("Found " + areaId + " had non-default toolbar visibility (expected " + defaultCollapsed + ", was " + collapsed + ")");
return false;
}
}
}
LOG("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("Found " + currentPlacements[i] + " in " + areaId + " where " +
defaultPlacements[i] + " was expected!");
return false;
}
}
}
if (Services.prefs.prefHasUserValue(kPrefDrawInTitlebar)) {
LOG(kPrefDrawInTitlebar + " pref is non-default");
return false;
}
return true;
},
setToolbarVisibility: function(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.
*/
get AREA_PANEL() "PanelUI-contents",
/**
* Constant reference to the ID of the navigation toolbar.
*/
get AREA_NAVBAR() "nav-bar",
/**
* Constant reference to the ID of the menubar's toolbar.
*/
get AREA_MENUBAR() "toolbar-menubar",
/**
* Constant reference to the ID of the tabstrip toolbar.
*/
get AREA_TABSTRIP() "TabsToolbar",
/**
* Constant reference to the ID of the bookmarks toolbar.
*/
get 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
*/
get AREA_ADDONBAR() "addon-bar",
/**
* Constant indicating the area is a menu panel.
*/
get TYPE_MENU_PANEL() "menu-panel",
/**
* Constant indicating the area is a toolbar.
*/
get TYPE_TOOLBAR() "toolbar",
/**
* Constant indicating a XUL-type provider.
*/
get PROVIDER_XUL() "xul",
/**
* Constant indicating an API-type provider.
*/
get PROVIDER_API() "api",
/**
* Constant indicating dynamic (special) widgets: spring, spacer, and separator.
*/
get PROVIDER_SPECIAL() "special",
/**
* Constant indicating the widget is built-in
*/
get 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).
*/
get SOURCE_EXTERNAL() "external",
/**
* The class used to distinguish items that span the entire menu panel.
*/
get WIDE_PANEL_CLASS() "panel-wide-item",
/**
* The (constant) number of columns in the menu panel.
*/
get PANEL_COLUMN_COUNT() 3,
/**
* Constant indicating the reason the event was fired was a window closing
*/
get REASON_WINDOW_CLOSED() "window-closed",
/**
* Constant indicating the reason the event was fired was an area being
* unregistered separately from window closing mechanics.
*/
get 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: function(aListener) {
CustomizableUIInternal.addListener(aListener);
},
/**
* Remove a listener added with addListener
* @param aListener the listener object to remove
*/
removeListener: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function() {
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: function(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.
* - 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.
* - 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: function(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: function(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: function(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: function(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: function(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: function(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 [area for ([area, props] of gAreas)];
},
/**
* 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: function(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: function(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: function(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: function() {
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: function() {
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: function(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;
},
/**
* 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: function(aWidgetId) {
return CustomizableUIInternal.getPlacementOfWidget(aWidgetId, true);
},
/**
* 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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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: function(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, function() aWidget[propertyName]);
}
this.__defineGetter__("provider", function() 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 [this.forWindow(node.ownerDocument.defaultView) for (node of buildAreas)];
});
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,
function() aNode.getAttribute(propertyName));
}
this.__defineGetter__("disabled", function() 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 [this.forWindow(win) for ([win,] of gBuildWindows)];
});
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.ownerDocument.defaultView.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.ownerDocument.defaultView;
if (window.gBrowserInit.delayedStartupFinished) {
this.init();
} else {
Services.obs.addObserver(this, "browser-delayed-startup-finished", false);
}
}
OverflowableToolbar.prototype = {
initialized: false,
_forceOnOverflow: false,
observe: function(aSubject, aTopic, aData) {
if (aTopic == "browser-delayed-startup-finished" &&
aSubject == this._toolbar.ownerDocument.defaultView) {
Services.obs.removeObserver(this, "browser-delayed-startup-finished");
this.init();
}
},
init: function() {
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: function() {
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.ownerDocument.defaultView;
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: function(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: function() {
let deferred = Promise.defer();
if (this._panel.state == "open") {
deferred.resolve();
return deferred.promise;
}
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);
deferred.resolve();
});
return deferred.promise;
},
_onClickChevron: function(aEvent) {
if (this._chevron.open) {
this._panel.hidePopup();
this._chevron.open = false;
} else {
this.show();
}
},
_onPanelHiding: function(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: function(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.scrollLeftMax > 0) {
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.ownerDocument.defaultView;
win.UpdateUrlbarSearchSplitterState();
},
_onResize: function(aEvent) {
if (!this._lazyResizeHandler) {
this._lazyResizeHandler = new DeferredTask(this._onLazyResize.bind(this),
LAZY_RESIZE_INTERVAL_MS);
}
this._lazyResizeHandler.arm();
},
_moveItemsBackToTheirOrigin: function(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.ownerDocument.defaultView;
win.UpdateUrlbarSearchSplitterState();
if (!this._collapsed.size) {
this._toolbar.removeAttribute("overflowing");
CustomizableUI.removeListener(this);
}
},
_onLazyResize: function() {
if (!this._enabled)
return;
if (this._target.scrollLeftMax > 0) {
this.onOverflow();
} else {
this._moveItemsBackToTheirOrigin();
}
},
_disable: function() {
this._enabled = false;
this._moveItemsBackToTheirOrigin(true);
if (this._lazyResizeHandler) {
this._lazyResizeHandler.disarm();
}
},
_enable: function() {
this._enabled = true;
this.onOverflow();
},
onWidgetBeforeDOMChange: function(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: function(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);
}
// 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:
else if (!nowInBar) {
this._moveItemsBackToTheirOrigin(true);
}
// If it's in the toolbar now, then we don't care. An overflow event may
// fire afterwards; that's ok!
}
// If it used to be overflowed...
else {
// ... and isn't anymore, let's remove our bookkeeping:
if (!nowOverflowed) {
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);
}
}
// but if it still is, it must have changed places. Bookkeep:
else {
if (aNode.previousSibling) {
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: function(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: function(aNode) {
if (aNode.getAttribute("overflowedItem") == "true") {
return this._list;
}
return this._target;
},
_hideTimeoutId: null,
_showWithTimeout: function() {
this.show().then(function () {
let window = this._toolbar.ownerDocument.defaultView;
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();