fda8666a02
The new structure enables separate dev/prod resource files, as well as compiling dev sources with :optimizations :none
904 lines
26 KiB
JavaScript
904 lines
26 KiB
JavaScript
(function (global, factory) {
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if (typeof define === "function" && define.amd) {
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define("webextension-polyfill", ["module"], factory);
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} else if (typeof exports !== "undefined") {
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factory(module);
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} else {
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var mod = {
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exports: {}
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};
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factory(mod);
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global.browser = mod.exports;
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}
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})(this, function (module) {
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/* webextension-polyfill - v0.2.1 - Mon Jan 08 2018 10:05:36 */
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/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set sts=2 sw=2 et tw=80: */
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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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if (typeof browser === "undefined") {
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// Wrapping the bulk of this polyfill in a one-time-use function is a minor
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// optimization for Firefox. Since Spidermonkey does not fully parse the
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// contents of a function until the first time it's called, and since it will
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// never actually need to be called, this allows the polyfill to be included
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// in Firefox nearly for free.
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const wrapAPIs = () => {
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// NOTE: apiMetadata is associated to the content of the api-metadata.json file
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// at build time by replacing the following "include" with the content of the
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// JSON file.
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const apiMetadata = {
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"alarms": {
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"clear": {
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"minArgs": 0,
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"maxArgs": 1
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},
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"clearAll": {
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"minArgs": 0,
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|
"maxArgs": 0
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},
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|
"get": {
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|
"minArgs": 0,
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|
"maxArgs": 1
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},
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"getAll": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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}
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},
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"bookmarks": {
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"create": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"export": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"get": {
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"minArgs": 1,
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|
"maxArgs": 1
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|
},
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"getChildren": {
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|
"minArgs": 1,
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"maxArgs": 1
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},
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"getRecent": {
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"minArgs": 1,
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"maxArgs": 1
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},
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|
"getTree": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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},
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|
"getSubTree": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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},
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"import": {
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"minArgs": 0,
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"maxArgs": 0
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},
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"move": {
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|
"minArgs": 2,
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|
"maxArgs": 2
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},
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"remove": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"removeTree": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"search": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"update": {
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"minArgs": 2,
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"maxArgs": 2
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}
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},
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"browserAction": {
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"getBadgeBackgroundColor": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getBadgeText": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getPopup": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getTitle": {
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"minArgs": 1,
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|
"maxArgs": 1
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},
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"setIcon": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"commands": {
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"getAll": {
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"minArgs": 0,
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"maxArgs": 0
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}
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},
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"contextMenus": {
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"update": {
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"minArgs": 2,
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"maxArgs": 2
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},
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"remove": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"removeAll": {
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"minArgs": 0,
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"maxArgs": 0
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}
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},
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"cookies": {
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"get": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getAll": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getAllCookieStores": {
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"minArgs": 0,
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|
"maxArgs": 0
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},
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"remove": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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},
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"set": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"devtools": {
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"inspectedWindow": {
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"eval": {
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"minArgs": 1,
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"maxArgs": 2
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}
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},
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"panels": {
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"create": {
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"minArgs": 3,
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"maxArgs": 3,
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"singleCallbackArg": true
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}
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}
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},
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"downloads": {
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"download": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"cancel": {
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"minArgs": 1,
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|
"maxArgs": 1
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|
},
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|
"erase": {
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"minArgs": 1,
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|
"maxArgs": 1
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},
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"getFileIcon": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"open": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"pause": {
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"minArgs": 1,
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|
"maxArgs": 1
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},
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"removeFile": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"resume": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"search": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"show": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"extension": {
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"isAllowedFileSchemeAccess": {
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"minArgs": 0,
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"maxArgs": 0
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},
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"isAllowedIncognitoAccess": {
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"minArgs": 0,
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"maxArgs": 0
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}
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},
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"history": {
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"addUrl": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getVisits": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"deleteAll": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"deleteRange": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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|
},
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"deleteUrl": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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|
},
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"search": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"i18n": {
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"detectLanguage": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getAcceptLanguages": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
}
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},
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"idle": {
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"queryState": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"management": {
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|
"get": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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},
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"getAll": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"getSelf": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"uninstallSelf": {
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"minArgs": 0,
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|
"maxArgs": 1
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|
}
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},
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"notifications": {
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"clear": {
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|
"minArgs": 1,
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|
"maxArgs": 1
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},
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"create": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"getAll": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"getPermissionLevel": {
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"minArgs": 0,
|
|
"maxArgs": 0
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|
},
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|
"update": {
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"minArgs": 2,
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|
"maxArgs": 2
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}
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},
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"pageAction": {
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"getPopup": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getTitle": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"hide": {
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"minArgs": 0,
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|
"maxArgs": 0
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},
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"setIcon": {
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"minArgs": 1,
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"maxArgs": 1
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|
},
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"show": {
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"minArgs": 0,
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"maxArgs": 0
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|
}
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},
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"runtime": {
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"getBackgroundPage": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"getBrowserInfo": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"getPlatformInfo": {
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"minArgs": 0,
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|
"maxArgs": 0
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},
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"openOptionsPage": {
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"minArgs": 0,
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|
"maxArgs": 0
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|
},
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"requestUpdateCheck": {
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|
"minArgs": 0,
|
|
"maxArgs": 0
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|
},
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|
"sendMessage": {
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"minArgs": 1,
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|
"maxArgs": 3
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},
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"sendNativeMessage": {
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"minArgs": 2,
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"maxArgs": 2
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},
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"setUninstallURL": {
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"minArgs": 1,
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"maxArgs": 1
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|
}
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},
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"storage": {
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"local": {
|
|
"clear": {
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|
"minArgs": 0,
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|
"maxArgs": 0
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|
},
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|
"get": {
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|
"minArgs": 0,
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|
"maxArgs": 1
|
|
},
|
|
"getBytesInUse": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
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},
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"remove": {
|
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"minArgs": 1,
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|
"maxArgs": 1
|
|
},
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"set": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"managed": {
|
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"get": {
|
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"minArgs": 0,
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|
"maxArgs": 1
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|
},
|
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"getBytesInUse": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
|
|
}
|
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},
|
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"sync": {
|
|
"clear": {
|
|
"minArgs": 0,
|
|
"maxArgs": 0
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|
},
|
|
"get": {
|
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"minArgs": 0,
|
|
"maxArgs": 1
|
|
},
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"getBytesInUse": {
|
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"minArgs": 0,
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|
"maxArgs": 1
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|
},
|
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"remove": {
|
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"minArgs": 1,
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"maxArgs": 1
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},
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"set": {
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"minArgs": 1,
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"maxArgs": 1
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}
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}
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},
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"tabs": {
|
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"create": {
|
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"minArgs": 1,
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|
"maxArgs": 1
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},
|
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"captureVisibleTab": {
|
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"minArgs": 0,
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"maxArgs": 2
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},
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"detectLanguage": {
|
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"minArgs": 0,
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"maxArgs": 1
|
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},
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"duplicate": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"executeScript": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"get": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getCurrent": {
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"minArgs": 0,
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"maxArgs": 0
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},
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"getZoom": {
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"minArgs": 0,
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"maxArgs": 1
|
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},
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"getZoomSettings": {
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"minArgs": 0,
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|
"maxArgs": 1
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},
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"highlight": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"insertCSS": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"move": {
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"minArgs": 2,
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"maxArgs": 2
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},
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"reload": {
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"minArgs": 0,
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"maxArgs": 2
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},
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"remove": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"query": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"removeCSS": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"sendMessage": {
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"minArgs": 2,
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"maxArgs": 3
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},
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"setZoom": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"setZoomSettings": {
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"minArgs": 1,
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"maxArgs": 2
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},
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"update": {
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"minArgs": 1,
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"maxArgs": 2
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}
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},
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"webNavigation": {
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"getAllFrames": {
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"minArgs": 1,
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"maxArgs": 1
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},
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"getFrame": {
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"minArgs": 1,
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"maxArgs": 1
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}
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},
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"webRequest": {
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"handlerBehaviorChanged": {
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"minArgs": 0,
|
|
"maxArgs": 0
|
|
}
|
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},
|
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"windows": {
|
|
"create": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
|
|
},
|
|
"get": {
|
|
"minArgs": 1,
|
|
"maxArgs": 2
|
|
},
|
|
"getAll": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
|
|
},
|
|
"getCurrent": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
|
|
},
|
|
"getLastFocused": {
|
|
"minArgs": 0,
|
|
"maxArgs": 1
|
|
},
|
|
"remove": {
|
|
"minArgs": 1,
|
|
"maxArgs": 1
|
|
},
|
|
"update": {
|
|
"minArgs": 2,
|
|
"maxArgs": 2
|
|
}
|
|
}
|
|
};
|
|
|
|
if (Object.keys(apiMetadata).length === 0) {
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throw new Error("api-metadata.json has not been included in browser-polyfill");
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}
|
|
|
|
/**
|
|
* A WeakMap subclass which creates and stores a value for any key which does
|
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* not exist when accessed, but behaves exactly as an ordinary WeakMap
|
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* otherwise.
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|
*
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|
* @param {function} createItem
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|
* A function which will be called in order to create the value for any
|
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* key which does not exist, the first time it is accessed. The
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* function receives, as its only argument, the key being created.
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*/
|
|
class DefaultWeakMap extends WeakMap {
|
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constructor(createItem, items = undefined) {
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super(items);
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this.createItem = createItem;
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}
|
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get(key) {
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if (!this.has(key)) {
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this.set(key, this.createItem(key));
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}
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|
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return super.get(key);
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|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given object is an object with a `then` method, and can
|
|
* therefore be assumed to behave as a Promise.
|
|
*
|
|
* @param {*} value The value to test.
|
|
* @returns {boolean} True if the value is thenable.
|
|
*/
|
|
const isThenable = value => {
|
|
return value && typeof value === "object" && typeof value.then === "function";
|
|
};
|
|
|
|
/**
|
|
* Creates and returns a function which, when called, will resolve or reject
|
|
* the given promise based on how it is called:
|
|
*
|
|
* - If, when called, `chrome.runtime.lastError` contains a non-null object,
|
|
* the promise is rejected with that value.
|
|
* - If the function is called with exactly one argument, the promise is
|
|
* resolved to that value.
|
|
* - Otherwise, the promise is resolved to an array containing all of the
|
|
* function's arguments.
|
|
*
|
|
* @param {object} promise
|
|
* An object containing the resolution and rejection functions of a
|
|
* promise.
|
|
* @param {function} promise.resolve
|
|
* The promise's resolution function.
|
|
* @param {function} promise.rejection
|
|
* The promise's rejection function.
|
|
* @param {object} metadata
|
|
* Metadata about the wrapped method which has created the callback.
|
|
* @param {integer} metadata.maxResolvedArgs
|
|
* The maximum number of arguments which may be passed to the
|
|
* callback created by the wrapped async function.
|
|
*
|
|
* @returns {function}
|
|
* The generated callback function.
|
|
*/
|
|
const makeCallback = (promise, metadata) => {
|
|
return (...callbackArgs) => {
|
|
if (chrome.runtime.lastError) {
|
|
promise.reject(chrome.runtime.lastError);
|
|
} else if (metadata.singleCallbackArg || callbackArgs.length === 1) {
|
|
promise.resolve(callbackArgs[0]);
|
|
} else {
|
|
promise.resolve(callbackArgs);
|
|
}
|
|
};
|
|
};
|
|
|
|
/**
|
|
* Creates a wrapper function for a method with the given name and metadata.
|
|
*
|
|
* @param {string} name
|
|
* The name of the method which is being wrapped.
|
|
* @param {object} metadata
|
|
* Metadata about the method being wrapped.
|
|
* @param {integer} metadata.minArgs
|
|
* The minimum number of arguments which must be passed to the
|
|
* function. If called with fewer than this number of arguments, the
|
|
* wrapper will raise an exception.
|
|
* @param {integer} metadata.maxArgs
|
|
* The maximum number of arguments which may be passed to the
|
|
* function. If called with more than this number of arguments, the
|
|
* wrapper will raise an exception.
|
|
* @param {integer} metadata.maxResolvedArgs
|
|
* The maximum number of arguments which may be passed to the
|
|
* callback created by the wrapped async function.
|
|
*
|
|
* @returns {function(object, ...*)}
|
|
* The generated wrapper function.
|
|
*/
|
|
const wrapAsyncFunction = (name, metadata) => {
|
|
const pluralizeArguments = numArgs => numArgs == 1 ? "argument" : "arguments";
|
|
|
|
return function asyncFunctionWrapper(target, ...args) {
|
|
if (args.length < metadata.minArgs) {
|
|
throw new Error(`Expected at least ${metadata.minArgs} ${pluralizeArguments(metadata.minArgs)} for ${name}(), got ${args.length}`);
|
|
}
|
|
|
|
if (args.length > metadata.maxArgs) {
|
|
throw new Error(`Expected at most ${metadata.maxArgs} ${pluralizeArguments(metadata.maxArgs)} for ${name}(), got ${args.length}`);
|
|
}
|
|
|
|
return new Promise((resolve, reject) => {
|
|
target[name](...args, makeCallback({ resolve, reject }, metadata));
|
|
});
|
|
};
|
|
};
|
|
|
|
/**
|
|
* Wraps an existing method of the target object, so that calls to it are
|
|
* intercepted by the given wrapper function. The wrapper function receives,
|
|
* as its first argument, the original `target` object, followed by each of
|
|
* the arguments passed to the orginal method.
|
|
*
|
|
* @param {object} target
|
|
* The original target object that the wrapped method belongs to.
|
|
* @param {function} method
|
|
* The method being wrapped. This is used as the target of the Proxy
|
|
* object which is created to wrap the method.
|
|
* @param {function} wrapper
|
|
* The wrapper function which is called in place of a direct invocation
|
|
* of the wrapped method.
|
|
*
|
|
* @returns {Proxy<function>}
|
|
* A Proxy object for the given method, which invokes the given wrapper
|
|
* method in its place.
|
|
*/
|
|
const wrapMethod = (target, method, wrapper) => {
|
|
return new Proxy(method, {
|
|
apply(targetMethod, thisObj, args) {
|
|
return wrapper.call(thisObj, target, ...args);
|
|
}
|
|
});
|
|
};
|
|
|
|
let hasOwnProperty = Function.call.bind(Object.prototype.hasOwnProperty);
|
|
|
|
/**
|
|
* Wraps an object in a Proxy which intercepts and wraps certain methods
|
|
* based on the given `wrappers` and `metadata` objects.
|
|
*
|
|
* @param {object} target
|
|
* The target object to wrap.
|
|
*
|
|
* @param {object} [wrappers = {}]
|
|
* An object tree containing wrapper functions for special cases. Any
|
|
* function present in this object tree is called in place of the
|
|
* method in the same location in the `target` object tree. These
|
|
* wrapper methods are invoked as described in {@see wrapMethod}.
|
|
*
|
|
* @param {object} [metadata = {}]
|
|
* An object tree containing metadata used to automatically generate
|
|
* Promise-based wrapper functions for asynchronous. Any function in
|
|
* the `target` object tree which has a corresponding metadata object
|
|
* in the same location in the `metadata` tree is replaced with an
|
|
* automatically-generated wrapper function, as described in
|
|
* {@see wrapAsyncFunction}
|
|
*
|
|
* @returns {Proxy<object>}
|
|
*/
|
|
const wrapObject = (target, wrappers = {}, metadata = {}) => {
|
|
let cache = Object.create(null);
|
|
|
|
let handlers = {
|
|
has(target, prop) {
|
|
return prop in target || prop in cache;
|
|
},
|
|
|
|
get(target, prop, receiver) {
|
|
if (prop in cache) {
|
|
return cache[prop];
|
|
}
|
|
|
|
if (!(prop in target)) {
|
|
return undefined;
|
|
}
|
|
|
|
let value = target[prop];
|
|
|
|
if (typeof value === "function") {
|
|
// This is a method on the underlying object. Check if we need to do
|
|
// any wrapping.
|
|
|
|
if (typeof wrappers[prop] === "function") {
|
|
// We have a special-case wrapper for this method.
|
|
value = wrapMethod(target, target[prop], wrappers[prop]);
|
|
} else if (hasOwnProperty(metadata, prop)) {
|
|
// This is an async method that we have metadata for. Create a
|
|
// Promise wrapper for it.
|
|
let wrapper = wrapAsyncFunction(prop, metadata[prop]);
|
|
value = wrapMethod(target, target[prop], wrapper);
|
|
} else {
|
|
// This is a method that we don't know or care about. Return the
|
|
// original method, bound to the underlying object.
|
|
value = value.bind(target);
|
|
}
|
|
} else if (typeof value === "object" && value !== null && (hasOwnProperty(wrappers, prop) || hasOwnProperty(metadata, prop))) {
|
|
// This is an object that we need to do some wrapping for the children
|
|
// of. Create a sub-object wrapper for it with the appropriate child
|
|
// metadata.
|
|
value = wrapObject(value, wrappers[prop], metadata[prop]);
|
|
} else {
|
|
// We don't need to do any wrapping for this property,
|
|
// so just forward all access to the underlying object.
|
|
Object.defineProperty(cache, prop, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get() {
|
|
return target[prop];
|
|
},
|
|
set(value) {
|
|
target[prop] = value;
|
|
}
|
|
});
|
|
|
|
return value;
|
|
}
|
|
|
|
cache[prop] = value;
|
|
return value;
|
|
},
|
|
|
|
set(target, prop, value, receiver) {
|
|
if (prop in cache) {
|
|
cache[prop] = value;
|
|
} else {
|
|
target[prop] = value;
|
|
}
|
|
return true;
|
|
},
|
|
|
|
defineProperty(target, prop, desc) {
|
|
return Reflect.defineProperty(cache, prop, desc);
|
|
},
|
|
|
|
deleteProperty(target, prop) {
|
|
return Reflect.deleteProperty(cache, prop);
|
|
}
|
|
};
|
|
|
|
return new Proxy(target, handlers);
|
|
};
|
|
|
|
/**
|
|
* Creates a set of wrapper functions for an event object, which handles
|
|
* wrapping of listener functions that those messages are passed.
|
|
*
|
|
* A single wrapper is created for each listener function, and stored in a
|
|
* map. Subsequent calls to `addListener`, `hasListener`, or `removeListener`
|
|
* retrieve the original wrapper, so that attempts to remove a
|
|
* previously-added listener work as expected.
|
|
*
|
|
* @param {DefaultWeakMap<function, function>} wrapperMap
|
|
* A DefaultWeakMap object which will create the appropriate wrapper
|
|
* for a given listener function when one does not exist, and retrieve
|
|
* an existing one when it does.
|
|
*
|
|
* @returns {object}
|
|
*/
|
|
const wrapEvent = wrapperMap => ({
|
|
addListener(target, listener, ...args) {
|
|
target.addListener(wrapperMap.get(listener), ...args);
|
|
},
|
|
|
|
hasListener(target, listener) {
|
|
return target.hasListener(wrapperMap.get(listener));
|
|
},
|
|
|
|
removeListener(target, listener) {
|
|
target.removeListener(wrapperMap.get(listener));
|
|
}
|
|
});
|
|
|
|
const onMessageWrappers = new DefaultWeakMap(listener => {
|
|
if (typeof listener !== "function") {
|
|
return listener;
|
|
}
|
|
|
|
/**
|
|
* Wraps a message listener function so that it may send responses based on
|
|
* its return value, rather than by returning a sentinel value and calling a
|
|
* callback. If the listener function returns a Promise, the response is
|
|
* sent when the promise either resolves or rejects.
|
|
*
|
|
* @param {*} message
|
|
* The message sent by the other end of the channel.
|
|
* @param {object} sender
|
|
* Details about the sender of the message.
|
|
* @param {function(*)} sendResponse
|
|
* A callback which, when called with an arbitrary argument, sends
|
|
* that value as a response.
|
|
* @returns {boolean}
|
|
* True if the wrapped listener returned a Promise, which will later
|
|
* yield a response. False otherwise.
|
|
*/
|
|
return function onMessage(message, sender, sendResponse) {
|
|
let result = listener(message, sender);
|
|
|
|
if (isThenable(result)) {
|
|
result.then(sendResponse, error => {
|
|
console.error(error);
|
|
sendResponse(error);
|
|
});
|
|
|
|
return true;
|
|
} else if (result !== undefined) {
|
|
sendResponse(result);
|
|
}
|
|
};
|
|
});
|
|
|
|
const staticWrappers = {
|
|
runtime: {
|
|
onMessage: wrapEvent(onMessageWrappers)
|
|
}
|
|
};
|
|
|
|
// Create a new empty object and copy the properties of the original chrome object
|
|
// to prevent a Proxy violation exception for the devtools API getter
|
|
// (which is a read-only non-configurable property on the original target).
|
|
const targetObject = Object.assign({}, chrome);
|
|
|
|
return wrapObject(targetObject, staticWrappers, apiMetadata);
|
|
};
|
|
|
|
// The build process adds a UMD wrapper around this file, which makes the
|
|
// `module` variable available.
|
|
module.exports = wrapAPIs(); // eslint-disable-line no-undef
|
|
} else {
|
|
module.exports = browser; // eslint-disable-line no-undef
|
|
}
|
|
});
|
|
//# sourceMappingURL=browser-polyfill.js.map
|