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91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
/* 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 EXAMPLE_URL = "http://example.com/browser/dom/workers/test/";
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const FRAME_SCRIPT_URL = getRootDirectory(gTestPath) + "frame_script.js";
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/**
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* Add a tab with given `url`, and load a frame script in it. Returns a promise
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* that will be resolved when the tab finished loading.
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*/
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function addTab(url) {
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let tab = BrowserTestUtils.addTab(gBrowser, TAB_URL);
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gBrowser.selectedTab = tab;
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let linkedBrowser = tab.linkedBrowser;
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linkedBrowser.messageManager.loadFrameScript(FRAME_SCRIPT_URL, false);
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return new Promise(function (resolve) {
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linkedBrowser.addEventListener("load", function() {
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resolve(tab);
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}, {capture: true, once: true});
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});
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}
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/**
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* Remove the given `tab`.
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*/
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function removeTab(tab) {
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gBrowser.removeTab(tab);
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}
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let nextId = 0;
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/**
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* Send a JSON RPC request to the frame script in the given `tab`, invoking the
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* given `method` with the given `params`. Returns a promise that will be
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* resolved with the result of the invocation.
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*/
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function jsonrpc(tab, method, params) {
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let currentId = nextId++;
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let messageManager = tab.linkedBrowser.messageManager;
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messageManager.sendAsyncMessage("jsonrpc", {
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id: currentId,
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method: method,
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params: params
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});
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return new Promise(function (resolve, reject) {
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messageManager.addMessageListener("jsonrpc", function listener(event) {
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let { id, result, error } = event.data;
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if (id !== currentId) {
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return;
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}
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messageManager.removeMessageListener("jsonrpc", listener);
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if (error) {
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reject(error);
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return;
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}
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resolve(result);
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});
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});
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}
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/**
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* Create a worker with the given `url` in the given `tab`.
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*/
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function createWorkerInTab(tab, url) {
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return jsonrpc(tab, "createWorker", [url]);
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}
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/**
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* Terminate the worker with the given `url` in the given `tab`.
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*/
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function terminateWorkerInTab(tab, url) {
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return jsonrpc(tab, "terminateWorker", [url]);
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}
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/**
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* Post the given `message` to the worker with the given `url` in the given
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* `tab`.
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*/
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function postMessageToWorkerInTab(tab, url, message) {
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return jsonrpc(tab, "postMessageToWorker", [url, message]);
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}
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/**
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* Disable the cache in the given `tab`.
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*/
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function disableCacheInTab(tab) {
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return jsonrpc(tab, "disableCache", []);
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}
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