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Move WebExtensions enabled Add-ons Manager
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NTD
Roy Tam
parent
d7d16e7fbb
commit
358cd0404a
1100 changed files with 133 additions and 106 deletions
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@ -1,269 +0,0 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/Task.jsm");
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const MSG_PROMISE_REQUEST = "WebAPIPromiseRequest";
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const MSG_PROMISE_RESULT = "WebAPIPromiseResult";
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const MSG_INSTALL_EVENT = "WebAPIInstallEvent";
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const MSG_INSTALL_CLEANUP = "WebAPICleanup";
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const MSG_ADDON_EVENT_REQ = "WebAPIAddonEventRequest";
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const MSG_ADDON_EVENT = "WebAPIAddonEvent";
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class APIBroker {
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constructor(mm) {
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this.mm = mm;
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this._promises = new Map();
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// _installMap maps integer ids to DOM AddonInstall instances
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this._installMap = new Map();
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this.mm.addMessageListener(MSG_PROMISE_RESULT, this);
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this.mm.addMessageListener(MSG_INSTALL_EVENT, this);
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this._eventListener = null;
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}
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receiveMessage(message) {
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let payload = message.data;
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switch (message.name) {
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case MSG_PROMISE_RESULT: {
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if (!this._promises.has(payload.callbackID)) {
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return;
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}
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let resolve = this._promises.get(payload.callbackID);
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this._promises.delete(payload.callbackID);
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resolve(payload);
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break;
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}
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case MSG_INSTALL_EVENT: {
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let install = this._installMap.get(payload.id);
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if (!install) {
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let err = new Error(`Got install event for unknown install ${payload.id}`);
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Cu.reportError(err);
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return;
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}
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install._dispatch(payload);
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break;
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}
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case MSG_ADDON_EVENT: {
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if (this._eventListener) {
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this._eventListener(payload);
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}
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}
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}
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}
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sendRequest(type, ...args) {
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return new Promise(resolve => {
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let callbackID = APIBroker._nextID++;
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this._promises.set(callbackID, resolve);
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this.mm.sendAsyncMessage(MSG_PROMISE_REQUEST, { type, callbackID, args });
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});
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}
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setAddonListener(callback) {
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this._eventListener = callback;
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if (callback) {
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this.mm.addMessageListener(MSG_ADDON_EVENT, this);
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this.mm.sendAsyncMessage(MSG_ADDON_EVENT_REQ, {enabled: true});
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} else {
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this.mm.removeMessageListener(MSG_ADDON_EVENT, this);
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this.mm.sendAsyncMessage(MSG_ADDON_EVENT_REQ, {enabled: false});
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}
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}
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sendCleanup(ids) {
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this.setAddonListener(null);
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this.mm.sendAsyncMessage(MSG_INSTALL_CLEANUP, { ids });
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}
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}
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APIBroker._nextID = 0;
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// Base class for building classes to back content-exposed interfaces.
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class APIObject {
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init(window, broker, properties) {
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this.window = window;
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this.broker = broker;
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// Copy any provided properties onto this object, webidl bindings
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// will only expose to content what should be exposed.
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for (let key of Object.keys(properties)) {
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this[key] = properties[key];
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}
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}
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/**
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* Helper to implement an asychronous method visible to content, where
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* the method is implemented by sending a message to the parent process
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* and then wrapping the returned object or error in an appropriate object.
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* This helper method ensures that:
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* - Returned Promise objects are from the content window
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* - Rejected Promises have Error objects from the content window
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* - Only non-internal errors are exposed to the caller
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*
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* @param {string} apiRequest The command to invoke in the parent process.
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* @param {array<cloneable>} apiArgs The arguments to include with the
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* request to the parent process.
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* @param {function} resultConvert If provided, a function called with the
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* result from the parent process as an
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* argument. Used to convert the result
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* into something appropriate for content.
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* @returns {Promise<any>} A Promise suitable for passing directly to content.
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*/
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_apiTask(apiRequest, apiArgs, resultConverter) {
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let win = this.window;
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let broker = this.broker;
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return new win.Promise((resolve, reject) => {
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Task.spawn(function*() {
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let result = yield broker.sendRequest(apiRequest, ...apiArgs);
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if ("reject" in result) {
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let err = new win.Error(result.reject.message);
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// We don't currently put any other properties onto Errors
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// generated by mozAddonManager. If/when we do, they will
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// need to get copied here.
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reject(err);
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return;
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}
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let obj = result.resolve;
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if (resultConverter) {
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obj = resultConverter(obj);
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}
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resolve(obj);
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}).catch(err => {
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Cu.reportError(err);
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reject(new win.Error("Unexpected internal error"));
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});
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});
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}
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}
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class Addon extends APIObject {
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constructor(...args) {
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super();
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this.init(...args);
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}
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uninstall() {
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return this._apiTask("addonUninstall", [this.id]);
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}
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setEnabled(value) {
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return this._apiTask("addonSetEnabled", [this.id, value]);
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}
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}
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class AddonInstall extends APIObject {
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constructor(window, broker, properties) {
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super();
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this.init(window, broker, properties);
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broker._installMap.set(properties.id, this);
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}
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_dispatch(data) {
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// The message for the event includes updated copies of all install
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// properties. Use the usual "let webidl filter visible properties" trick.
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for (let key of Object.keys(data)) {
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this[key] = data[key];
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}
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let event = new this.window.Event(data.event);
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this.__DOM_IMPL__.dispatchEvent(event);
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}
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install() {
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return this._apiTask("addonInstallDoInstall", [this.id]);
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}
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cancel() {
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return this._apiTask("addonInstallCancel", [this.id]);
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}
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}
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class WebAPI extends APIObject {
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constructor() {
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super();
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this.allInstalls = [];
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this.listenerCount = 0;
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}
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init(window) {
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let mm = window
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDocShell)
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIContentFrameMessageManager);
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let broker = new APIBroker(mm);
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super.init(window, broker, {});
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window.addEventListener("unload", event => {
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this.broker.sendCleanup(this.allInstalls);
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});
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}
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getAddonByID(id) {
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return this._apiTask("getAddonByID", [id], addonInfo => {
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if (!addonInfo) {
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return null;
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}
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let addon = new Addon(this.window, this.broker, addonInfo);
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return this.window.Addon._create(this.window, addon);
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});
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}
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createInstall(options) {
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return this._apiTask("createInstall", [options], installInfo => {
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if (!installInfo) {
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return null;
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}
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let install = new AddonInstall(this.window, this.broker, installInfo);
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this.allInstalls.push(installInfo.id);
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return this.window.AddonInstall._create(this.window, install);
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});
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}
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eventListenerWasAdded(type) {
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if (this.listenerCount == 0) {
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this.broker.setAddonListener(data => {
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let event = new this.window.AddonEvent(data.event, data);
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this.__DOM_IMPL__.dispatchEvent(event);
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});
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}
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this.listenerCount++;
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}
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eventListenerWasRemoved(type) {
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this.listenerCount--;
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if (this.listenerCount == 0) {
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this.broker.setAddonListener(null);
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}
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}
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QueryInterface(iid) {
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if (iid.equals(WebAPI.classID) || iid.equals(Ci.nsISupports)
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|| iid.equals(Ci.nsIDOMGlobalPropertyInitializer)) {
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return this;
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}
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return Cr.NS_ERROR_NO_INTERFACE;
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}
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}
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WebAPI.prototype.classID = Components.ID("{8866d8e3-4ea5-48b7-a891-13ba0ac15235}");
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([WebAPI]);
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