951 lines
32 KiB
JavaScript
951 lines
32 KiB
JavaScript
// This file is part of the AppIndicator/KStatusNotifierItem GNOME Shell extension
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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import Clutter from 'gi://Clutter';
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import GLib from 'gi://GLib';
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import GObject from 'gi://GObject';
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import GdkPixbuf from 'gi://GdkPixbuf';
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import Gio from 'gi://Gio';
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import St from 'gi://St';
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import * as PopupMenu from 'resource:///org/gnome/shell/ui/popupMenu.js';
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import * as Signals from 'resource:///org/gnome/shell/misc/signals.js';
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import * as DBusInterfaces from './interfaces.js';
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import * as PromiseUtils from './promiseUtils.js';
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import * as Util from './util.js';
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import {DBusProxy} from './dbusProxy.js';
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Gio._promisify(GdkPixbuf.Pixbuf, 'new_from_stream_async');
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// ////////////////////////////////////////////////////////////////////////
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// PART ONE: "ViewModel" backend implementation.
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// Both code and design are inspired by libdbusmenu
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// ////////////////////////////////////////////////////////////////////////
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/**
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* Saves menu property values and handles type checking and defaults
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*/
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export class PropertyStore {
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constructor(initialProperties) {
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this._props = new Map();
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if (initialProperties) {
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for (const [prop, value] of Object.entries(initialProperties))
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this.set(prop, value);
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}
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}
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set(name, value) {
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if (name in PropertyStore.MandatedTypes && value &&
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!value.is_of_type(PropertyStore.MandatedTypes[name]))
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Util.Logger.warn(`Cannot set property ${name}: type mismatch!`);
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else if (value)
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this._props.set(name, value);
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else
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this._props.delete(name);
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}
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get(name) {
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const prop = this._props.get(name);
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if (prop)
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return prop;
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else if (name in PropertyStore.DefaultValues)
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return PropertyStore.DefaultValues[name];
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else
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return null;
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}
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}
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// we list all the properties we know and use here, so we won' have to deal with unexpected type mismatches
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PropertyStore.MandatedTypes = {
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'visible': GLib.VariantType.new('b'),
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'enabled': GLib.VariantType.new('b'),
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'label': GLib.VariantType.new('s'),
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'type': GLib.VariantType.new('s'),
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'children-display': GLib.VariantType.new('s'),
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'icon-name': GLib.VariantType.new('s'),
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'icon-data': GLib.VariantType.new('ay'),
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'toggle-type': GLib.VariantType.new('s'),
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'toggle-state': GLib.VariantType.new('i'),
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};
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PropertyStore.DefaultValues = {
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'visible': GLib.Variant.new_boolean(true),
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'enabled': GLib.Variant.new_boolean(true),
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'label': GLib.Variant.new_string(''),
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'type': GLib.Variant.new_string('standard'),
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// elements not in here must return null
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};
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/**
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* Represents a single menu item
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*/
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export class DbusMenuItem extends Signals.EventEmitter {
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// will steal the properties object
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constructor(client, id, properties, childrenIds) {
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super();
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this._client = client;
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this._id = id;
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this._propStore = new PropertyStore(properties);
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this._children_ids = childrenIds;
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}
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propertyGet(propName) {
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const prop = this.propertyGetVariant(propName);
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return prop ? prop.get_string()[0] : null;
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}
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propertyGetVariant(propName) {
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return this._propStore.get(propName);
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}
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propertyGetBool(propName) {
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const prop = this.propertyGetVariant(propName);
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return prop ? prop.get_boolean() : false;
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}
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propertyGetInt(propName) {
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const prop = this.propertyGetVariant(propName);
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return prop ? prop.get_int32() : 0;
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}
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propertySet(prop, value) {
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this._propStore.set(prop, value);
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this.emit('property-changed', prop, this.propertyGetVariant(prop));
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}
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getChildrenIds() {
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return this._children_ids.concat(); // clone it!
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}
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addChild(pos, childId) {
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this._children_ids.splice(pos, 0, childId);
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this.emit('child-added', this._client.getItem(childId), pos);
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}
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removeChild(childId) {
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// find it
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let pos = -1;
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for (let i = 0; i < this._children_ids.length; ++i) {
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if (this._children_ids[i] === childId) {
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pos = i;
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break;
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}
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}
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if (pos < 0) {
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Util.Logger.critical("Trying to remove child which doesn't exist");
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} else {
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this._children_ids.splice(pos, 1);
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this.emit('child-removed', this._client.getItem(childId));
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}
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}
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moveChild(childId, newPos) {
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// find the old position
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let oldPos = -1;
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for (let i = 0; i < this._children_ids.length; ++i) {
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if (this._children_ids[i] === childId) {
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oldPos = i;
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break;
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}
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}
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if (oldPos < 0) {
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Util.Logger.critical("tried to move child which wasn't in the list");
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return;
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}
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if (oldPos !== newPos) {
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this._children_ids.splice(oldPos, 1);
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this._children_ids.splice(newPos, 0, childId);
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this.emit('child-moved', oldPos, newPos, this._client.getItem(childId));
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}
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}
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getChildren() {
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return this._children_ids.map(el => this._client.getItem(el));
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}
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handleEvent(event, data, timestamp) {
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if (!data)
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data = GLib.Variant.new_int32(0);
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this._client.sendEvent(this._id, event, data, timestamp);
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}
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getId() {
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return this._id;
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}
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sendAboutToShow() {
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this._client.sendAboutToShow(this._id);
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}
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}
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/**
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* The client does the heavy lifting of actually reading layouts and distributing events
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*/
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export const DBusClient = GObject.registerClass({
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Signals: {'ready-changed': {}},
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}, class AppIndicatorsDBusClient extends DBusProxy {
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static get interfaceInfo() {
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if (!this._interfaceInfo) {
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this._interfaceInfo = Gio.DBusInterfaceInfo.new_for_xml(
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DBusInterfaces.DBusMenu);
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}
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return this._interfaceInfo;
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}
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static get baseItems() {
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if (!this._baseItems) {
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this._baseItems = {
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'children-display': GLib.Variant.new_string('submenu'),
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};
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}
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return this._baseItems;
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}
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static destroy() {
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delete this._interfaceInfo;
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}
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_init(busName, objectPath) {
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const {interfaceInfo} = AppIndicatorsDBusClient;
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super._init(busName, objectPath, interfaceInfo,
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Gio.DBusProxyFlags.DO_NOT_LOAD_PROPERTIES);
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this._items = new Map();
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this._items.set(0, new DbusMenuItem(this, 0, DBusClient.baseItems, []));
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this._flagItemsUpdateRequired = false;
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// will be set to true if a layout update is needed once active
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this._flagLayoutUpdateRequired = false;
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// property requests are queued
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this._propertiesRequestedFor = new Set(/* ids */);
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this._layoutUpdated = false;
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this._active = false;
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}
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async initAsync(cancellable) {
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await super.initAsync(cancellable);
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this._requestLayoutUpdate();
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}
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_onNameOwnerChanged() {
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if (this.isReady)
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this._requestLayoutUpdate();
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}
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get isReady() {
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return this._layoutUpdated && !!this.gNameOwner;
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}
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get cancellable() {
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return this._cancellable;
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}
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getRoot() {
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return this._items.get(0);
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}
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_requestLayoutUpdate() {
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const cancellable = new Util.CancellableChild(this._cancellable);
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this._beginLayoutUpdate(cancellable);
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}
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async _requestProperties(propertyId, cancellable) {
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this._propertiesRequestedFor.add(propertyId);
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if (this._propertiesRequest && this._propertiesRequest.pending())
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return;
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// if we don't have any requests queued, we'll need to add one
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this._propertiesRequest = new PromiseUtils.IdlePromise(
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GLib.PRIORITY_DEFAULT_IDLE, cancellable);
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await this._propertiesRequest;
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const requestedProperties = Array.from(this._propertiesRequestedFor);
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this._propertiesRequestedFor.clear();
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const [result] = await this.GetGroupPropertiesAsync(requestedProperties,
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[], cancellable);
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result.forEach(([id, properties]) => {
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const item = this._items.get(id);
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if (!item)
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return;
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for (const [prop, value] of Object.entries(properties))
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item.propertySet(prop, value);
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});
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}
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// Traverses the list of cached menu items and removes everyone that is not in the list
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// so we don't keep alive unused items
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_gcItems() {
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const tag = new Date().getTime();
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const toTraverse = [0];
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while (toTraverse.length > 0) {
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const item = this.getItem(toTraverse.shift());
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item._dbusClientGcTag = tag;
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Array.prototype.push.apply(toTraverse, item.getChildrenIds());
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}
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this._items.forEach((i, id) => {
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if (i._dbusClientGcTag !== tag)
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this._items.delete(id);
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});
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}
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// the original implementation will only request partial layouts if somehow possible
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// we try to save us from multiple kinds of race conditions by always requesting a full layout
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_beginLayoutUpdate(cancellable) {
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this._layoutUpdateUpdateAsync(cancellable).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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});
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}
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// the original implementation will only request partial layouts if somehow possible
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// we try to save us from multiple kinds of race conditions by always requesting a full layout
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async _layoutUpdateUpdateAsync(cancellable) {
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// we only read the type property, because if the type changes after reading all properties,
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// the view would have to replace the item completely which we try to avoid
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if (this._layoutUpdateCancellable)
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this._layoutUpdateCancellable.cancel();
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this._layoutUpdateCancellable = cancellable;
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try {
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const [revision_, root] = await this.GetLayoutAsync(0, -1,
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['type', 'children-display'], cancellable);
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this._updateLayoutState(true);
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this._doLayoutUpdate(root, cancellable);
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this._gcItems();
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this._flagLayoutUpdateRequired = false;
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this._flagItemsUpdateRequired = false;
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} catch (e) {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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this._updateLayoutState(false);
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throw e;
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} finally {
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if (this._layoutUpdateCancellable === cancellable)
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this._layoutUpdateCancellable = null;
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}
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}
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_updateLayoutState(state) {
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const wasReady = this.isReady;
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this._layoutUpdated = state;
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if (this.isReady !== wasReady)
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this.emit('ready-changed');
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}
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_doLayoutUpdate(item, cancellable) {
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const [id, properties, children] = item;
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const childrenUnpacked = children.map(c => c.deep_unpack());
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const childrenIds = childrenUnpacked.map(([c]) => c);
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// make sure all our children exist
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childrenUnpacked.forEach(c => this._doLayoutUpdate(c, cancellable));
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// make sure we exist
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const menuItem = this._items.get(id);
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if (menuItem) {
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// we do, update our properties if necessary
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for (const [prop, value] of Object.entries(properties))
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menuItem.propertySet(prop, value);
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// make sure our children are all at the right place, and exist
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const oldChildrenIds = menuItem.getChildrenIds();
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for (let i = 0; i < childrenIds.length; ++i) {
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// try to recycle an old child
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let oldChild = -1;
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for (let j = 0; j < oldChildrenIds.length; ++j) {
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if (oldChildrenIds[j] === childrenIds[i]) {
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[oldChild] = oldChildrenIds.splice(j, 1);
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break;
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}
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}
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if (oldChild < 0) {
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// no old child found, so create a new one!
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menuItem.addChild(i, childrenIds[i]);
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} else {
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// old child found, reuse it!
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menuItem.moveChild(childrenIds[i], i);
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}
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}
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// remove any old children that weren't reused
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oldChildrenIds.forEach(c => menuItem.removeChild(c));
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if (!this._flagItemsUpdateRequired)
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return id;
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}
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// we don't, so let's create us
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let newMenuItem = menuItem;
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if (!newMenuItem) {
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newMenuItem = new DbusMenuItem(this, id, properties, childrenIds);
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this._items.set(id, newMenuItem);
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}
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this._requestProperties(id, cancellable).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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Util.Logger.warn(`Could not get menu properties menu proxy: ${e}`);
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});
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return id;
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}
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async _doPropertiesUpdateAsync(cancellable) {
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if (this._propertiesUpdateCancellable)
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this._propertiesUpdateCancellable.cancel();
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this._propertiesUpdateCancellable = cancellable;
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try {
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const requests = [];
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this._items.forEach((_, id) =>
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requests.push(this._requestProperties(id, cancellable)));
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await Promise.all(requests);
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} finally {
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if (this._propertiesUpdateCancellable === cancellable)
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this._propertiesUpdateCancellable = null;
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}
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}
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_doPropertiesUpdate() {
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const cancellable = new Util.CancellableChild(this._cancellable);
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this._doPropertiesUpdateAsync(cancellable).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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Util.Logger.warn(`Could not get menu properties menu proxy: ${e}`);
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});
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}
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set active(active) {
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const wasActive = this._active;
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this._active = active;
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if (active && wasActive !== active) {
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if (this._flagLayoutUpdateRequired) {
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this._requestLayoutUpdate();
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} else if (this._flagItemsUpdateRequired) {
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this._doPropertiesUpdate();
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this._flagItemsUpdateRequired = false;
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}
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}
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}
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_onSignal(_sender, signal, params) {
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if (signal === 'LayoutUpdated') {
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if (!this._active) {
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this._flagLayoutUpdateRequired = true;
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return;
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}
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this._requestLayoutUpdate();
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} else if (signal === 'ItemsPropertiesUpdated') {
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if (!this._active) {
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this._flagItemsUpdateRequired = true;
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return;
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}
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this._onPropertiesUpdated(params.deep_unpack());
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}
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}
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getItem(id) {
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const item = this._items.get(id);
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if (!item)
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Util.Logger.warn(`trying to retrieve item for non-existing id ${id} !?`);
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return item || null;
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}
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// we don't need to cache and burst-send that since it will not happen that frequently
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async sendAboutToShow(id) {
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/* Some indicators (you, dropbox!) don't use the right signature
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* and don't return a boolean, so we need to support both cases */
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try {
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const ret = await this.gConnection.call(this.gName, this.gObjectPath,
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this.gInterfaceName, 'AboutToShow', new GLib.Variant('(i)', [id]),
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null, Gio.DBusCallFlags.NONE, -1, this._cancellable);
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if ((ret.is_of_type(new GLib.VariantType('(b)')) &&
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ret.get_child_value(0).get_boolean()) ||
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ret.is_of_type(new GLib.VariantType('()')))
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this._requestLayoutUpdate();
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} catch (e) {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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}
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}
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sendEvent(id, event, params, timestamp) {
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if (!this.gNameOwner)
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return;
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this.EventAsync(id, event, params, timestamp, this._cancellable).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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});
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}
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_onPropertiesUpdated([changed, removed]) {
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changed.forEach(([id, props]) => {
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const item = this._items.get(id);
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if (!item)
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return;
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for (const [prop, value] of Object.entries(props))
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item.propertySet(prop, value);
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});
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removed.forEach(([id, propNames]) => {
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const item = this._items.get(id);
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if (!item)
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return;
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propNames.forEach(propName => item.propertySet(propName, null));
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});
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}
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});
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// ////////////////////////////////////////////////////////////////////////
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// PART TWO: "View" frontend implementation.
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// ////////////////////////////////////////////////////////////////////////
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// https://bugzilla.gnome.org/show_bug.cgi?id=731514
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// GNOME 3.10 and 3.12 can't open a nested submenu.
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// Patches have been written, but it's not clear when (if?) they will be applied.
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// We also don't know whether they will be backported to 3.10, so we will work around
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// it in the meantime. Offending versions can be clearly identified:
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const NEED_NESTED_SUBMENU_FIX = '_setOpenedSubMenu' in PopupMenu.PopupMenu.prototype;
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/**
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* Creates new wrapper menu items and injects methods for managing them at runtime.
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*
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* Many functions in this object will be bound to the created item and executed as event
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* handlers, so any `this` will refer to a menu item create in createItem
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*/
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const MenuItemFactory = {
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createItem(client, dbusItem) {
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// first, decide whether it's a submenu or not
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let shellItem;
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if (dbusItem.propertyGet('children-display') === 'submenu')
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shellItem = new PopupMenu.PopupSubMenuMenuItem('FIXME');
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else if (dbusItem.propertyGet('type') === 'separator')
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shellItem = new PopupMenu.PopupSeparatorMenuItem('');
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else
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shellItem = new PopupMenu.PopupMenuItem('FIXME');
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shellItem._dbusItem = dbusItem;
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shellItem._dbusClient = client;
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if (shellItem instanceof PopupMenu.PopupMenuItem) {
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shellItem._icon = new St.Icon({
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style_class: 'popup-menu-icon',
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xAlign: Clutter.ActorAlign.END,
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});
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shellItem.add_child(shellItem._icon);
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shellItem.label.x_expand = true;
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}
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// initialize our state
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MenuItemFactory._updateLabel.call(shellItem);
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MenuItemFactory._updateOrnament.call(shellItem);
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MenuItemFactory._updateImage.call(shellItem);
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MenuItemFactory._updateVisible.call(shellItem);
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MenuItemFactory._updateSensitive.call(shellItem);
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// initially create children
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if (shellItem instanceof PopupMenu.PopupSubMenuMenuItem) {
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dbusItem.getChildren().forEach(c =>
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shellItem.menu.addMenuItem(MenuItemFactory.createItem(client, c)));
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}
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// now, connect various events
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Util.connectSmart(dbusItem, 'property-changed',
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shellItem, MenuItemFactory._onPropertyChanged);
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Util.connectSmart(dbusItem, 'child-added',
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shellItem, MenuItemFactory._onChildAdded);
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Util.connectSmart(dbusItem, 'child-removed',
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shellItem, MenuItemFactory._onChildRemoved);
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Util.connectSmart(dbusItem, 'child-moved',
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shellItem, MenuItemFactory._onChildMoved);
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Util.connectSmart(shellItem, 'activate',
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shellItem, MenuItemFactory._onActivate);
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shellItem.connect('destroy', () => {
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shellItem._dbusItem = null;
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shellItem._dbusClient = null;
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shellItem._icon = null;
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});
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if (shellItem.menu) {
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Util.connectSmart(shellItem.menu, 'open-state-changed',
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shellItem, MenuItemFactory._onOpenStateChanged);
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}
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return shellItem;
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},
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_onOpenStateChanged(menu, open) {
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if (open) {
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if (NEED_NESTED_SUBMENU_FIX) {
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// close our own submenus
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if (menu._openedSubMenu)
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menu._openedSubMenu.close(false);
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// register ourselves and close sibling submenus
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if (menu._parent._openedSubMenu && menu._parent._openedSubMenu !== menu)
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menu._parent._openedSubMenu.close(true);
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menu._parent._openedSubMenu = menu;
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}
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this._dbusItem.handleEvent('opened', null, 0);
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this._dbusItem.sendAboutToShow();
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} else {
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if (NEED_NESTED_SUBMENU_FIX) {
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// close our own submenus
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if (menu._openedSubMenu)
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menu._openedSubMenu.close(false);
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}
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this._dbusItem.handleEvent('closed', null, 0);
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}
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},
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_onActivate(_item, event) {
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const timestamp = event.get_time();
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if (timestamp && this._dbusClient.indicator)
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this._dbusClient.indicator.provideActivationToken(timestamp);
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this._dbusItem.handleEvent('clicked', GLib.Variant.new('i', 0),
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timestamp);
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},
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_onPropertyChanged(dbusItem, prop, _value) {
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if (prop === 'toggle-type' || prop === 'toggle-state')
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MenuItemFactory._updateOrnament.call(this);
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else if (prop === 'label')
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MenuItemFactory._updateLabel.call(this);
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else if (prop === 'enabled')
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MenuItemFactory._updateSensitive.call(this);
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else if (prop === 'visible')
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MenuItemFactory._updateVisible.call(this);
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else if (prop === 'icon-name' || prop === 'icon-data')
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MenuItemFactory._updateImage.call(this);
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else if (prop === 'type' || prop === 'children-display')
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MenuItemFactory._replaceSelf.call(this);
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else
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Util.Logger.debug(`Unhandled property change: ${prop}`);
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},
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_onChildAdded(dbusItem, child, position) {
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if (!(this instanceof PopupMenu.PopupSubMenuMenuItem)) {
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Util.Logger.warn('Tried to add a child to non-submenu item. Better recreate it as whole');
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MenuItemFactory._replaceSelf.call(this);
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} else {
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this.menu.addMenuItem(MenuItemFactory.createItem(this._dbusClient, child), position);
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}
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},
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_onChildRemoved(dbusItem, child) {
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if (!(this instanceof PopupMenu.PopupSubMenuMenuItem)) {
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Util.Logger.warn('Tried to remove a child from non-submenu item. Better recreate it as whole');
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MenuItemFactory._replaceSelf.call(this);
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} else {
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// find it!
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this.menu._getMenuItems().forEach(item => {
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if (item._dbusItem === child)
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item.destroy();
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});
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}
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},
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_onChildMoved(dbusItem, child, oldpos, newpos) {
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if (!(this instanceof PopupMenu.PopupSubMenuMenuItem)) {
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Util.Logger.warn('Tried to move a child in non-submenu item. Better recreate it as whole');
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MenuItemFactory._replaceSelf.call(this);
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} else {
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MenuUtils.moveItemInMenu(this.menu, child, newpos);
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}
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},
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_updateLabel() {
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const label = this._dbusItem.propertyGet('label').replace(/_([^_])/, '$1');
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if (this.label) // especially on GS3.8, the separator item might not even have a hidden label
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this.label.set_text(label);
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},
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_updateOrnament() {
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if (!this.setOrnament)
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return; // separators and alike might not have gotten the polyfill
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if (this._dbusItem.propertyGet('toggle-type') === 'checkmark' &&
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this._dbusItem.propertyGetInt('toggle-state'))
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this.setOrnament(PopupMenu.Ornament.CHECK);
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else if (this._dbusItem.propertyGet('toggle-type') === 'radio' &&
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this._dbusItem.propertyGetInt('toggle-state'))
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this.setOrnament(PopupMenu.Ornament.DOT);
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else
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this.setOrnament(PopupMenu.Ornament.NONE);
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},
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async _updateImage() {
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if (!this._icon)
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return; // might be missing on submenus / separators
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const iconName = this._dbusItem.propertyGet('icon-name');
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const iconData = this._dbusItem.propertyGetVariant('icon-data');
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if (iconName) {
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this._icon.icon_name = iconName;
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} else if (iconData) {
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try {
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const inputStream = Gio.MemoryInputStream.new_from_bytes(
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iconData.get_data_as_bytes());
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this._icon.gicon = await GdkPixbuf.Pixbuf.new_from_stream_async(
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inputStream, this._dbusClient.cancellable);
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} catch (e) {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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}
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}
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},
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_updateVisible() {
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this.visible = this._dbusItem.propertyGetBool('visible');
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},
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_updateSensitive() {
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this.setSensitive(this._dbusItem.propertyGetBool('enabled'));
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},
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_replaceSelf(newSelf) {
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// create our new self if needed
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if (!newSelf)
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newSelf = MenuItemFactory.createItem(this._dbusClient, this._dbusItem);
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// first, we need to find our old position
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let pos = -1;
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const family = this._parent._getMenuItems();
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for (let i = 0; i < family.length; ++i) {
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if (family[i] === this)
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pos = i;
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}
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if (pos < 0)
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throw new Error("DBusMenu: can't replace non existing menu item");
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// add our new self while we're still alive
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this._parent.addMenuItem(newSelf, pos);
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// now destroy our old self
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this.destroy();
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},
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};
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/**
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* Utility functions not necessarily belonging into the item factory
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*/
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const MenuUtils = {
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moveItemInMenu(menu, dbusItem, newpos) {
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// HACK: we're really getting into the internals of the PopupMenu implementation
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// First, find our wrapper. Children tend to lie. We do not trust the old positioning.
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const family = menu._getMenuItems();
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for (let i = 0; i < family.length; ++i) {
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if (family[i]._dbusItem === dbusItem) {
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// now, remove it
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menu.box.remove_child(family[i]);
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// and add it again somewhere else
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if (newpos < family.length && family[newpos] !== family[i])
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menu.box.insert_child_below(family[i], family[newpos]);
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else
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menu.box.add(family[i]);
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// skip the rest
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return;
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}
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}
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},
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};
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/**
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* Processes DBus events, creates the menu items and handles the actions
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*
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* Something like a mini-god-object
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*/
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export class Client extends Signals.EventEmitter {
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constructor(busName, path, indicator) {
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super();
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this._busName = busName;
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this._busPath = path;
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this._client = new DBusClient(busName, path);
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this._rootMenu = null; // the shell menu
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this._rootItem = null; // the DbusMenuItem for the root
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this.indicator = indicator;
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this.cancellable = new Util.CancellableChild(this.indicator.cancellable);
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this._client.initAsync(this.cancellable).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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});
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Util.connectSmart(this._client, 'ready-changed', this,
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() => this.emit('ready-changed'));
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}
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get isReady() {
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return this._client.isReady;
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}
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// this will attach the client to an already existing menu that will be used as the root menu.
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// it will also connect the client to be automatically destroyed when the menu dies.
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attachToMenu(menu) {
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this._rootMenu = menu;
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this._rootItem = this._client.getRoot();
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this._itemsBeingAdded = new Set();
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// cleanup: remove existing children (just in case)
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this._rootMenu.removeAll();
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if (NEED_NESTED_SUBMENU_FIX)
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menu._setOpenedSubMenu = this._setOpenedSubmenu.bind(this);
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// connect handlers
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Util.connectSmart(menu, 'open-state-changed', this, this._onMenuOpened);
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Util.connectSmart(menu, 'destroy', this, this.destroy);
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Util.connectSmart(this._rootItem, 'child-added', this, this._onRootChildAdded);
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Util.connectSmart(this._rootItem, 'child-removed', this, this._onRootChildRemoved);
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Util.connectSmart(this._rootItem, 'child-moved', this, this._onRootChildMoved);
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// Dropbox requires us to call AboutToShow(0) first
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this._rootItem.sendAboutToShow();
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// fill the menu for the first time
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const children = this._rootItem.getChildren();
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children.forEach(child =>
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this._onRootChildAdded(this._rootItem, child));
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}
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_setOpenedSubmenu(submenu) {
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if (!submenu)
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return;
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if (submenu._parent !== this._rootMenu)
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return;
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if (submenu === this._openedSubMenu)
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return;
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if (this._openedSubMenu && this._openedSubMenu.isOpen)
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this._openedSubMenu.close(true);
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this._openedSubMenu = submenu;
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}
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_onRootChildAdded(dbusItem, child, position) {
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// Menu additions can be expensive, so let's do it in different chunks
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const basePriority = this.isOpen ? GLib.PRIORITY_DEFAULT : GLib.PRIORITY_LOW;
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const idlePromise = new PromiseUtils.IdlePromise(
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basePriority + this._itemsBeingAdded.size, this.cancellable);
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this._itemsBeingAdded.add(child);
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idlePromise.then(() => {
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if (!this._itemsBeingAdded.has(child))
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return;
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this._rootMenu.addMenuItem(
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MenuItemFactory.createItem(this, child), position);
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}).catch(e => {
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if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
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logError(e);
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}).finally(() => this._itemsBeingAdded.delete(child));
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}
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_onRootChildRemoved(dbusItem, child) {
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// children like to play hide and seek
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// but we know how to find it for sure!
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const item = this._rootMenu._getMenuItems().find(it =>
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it._dbusItem === child);
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if (item)
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item.destroy();
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else
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this._itemsBeingAdded.delete(child);
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}
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_onRootChildMoved(dbusItem, child, oldpos, newpos) {
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MenuUtils.moveItemInMenu(this._rootMenu, dbusItem, newpos);
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}
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_onMenuOpened(menu, state) {
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if (!this._rootItem)
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return;
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this._client.active = state;
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if (state) {
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if (this._openedSubMenu && this._openedSubMenu.isOpen)
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this._openedSubMenu.close();
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this._rootItem.handleEvent('opened', null, 0);
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this._rootItem.sendAboutToShow();
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} else {
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this._rootItem.handleEvent('closed', null, 0);
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}
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}
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destroy() {
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this.emit('destroy');
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if (this._client)
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this._client.destroy();
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this._client = null;
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this._rootItem = null;
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this._rootMenu = null;
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this.indicator = null;
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this._itemsBeingAdded = null;
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}
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}
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