зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.8 KiB
JavaScript
83 строки
2.8 KiB
JavaScript
/* -*- Mode: tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 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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const TOPIC_PRESENTATION_RECEIVER_LAUNCH = "presentation-receiver:launch";
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const TOPIC_PRESENTATION_RECEIVER_LAUNCH_RESPONSE = "presentation-receiver:launch:response";
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// globals XPCOMUtils
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const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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// globals Services
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const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
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function log(str) {
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// dump("-*- PresentationRequestUIGlue.js -*-: " + str + "\n");
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}
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function PresentationRequestUIGlue() { }
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PresentationRequestUIGlue.prototype = {
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sendRequest: function sendRequest(aURL, aSessionId, aDevice) {
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log("PresentationRequestUIGlue - sendRequest aURL=" + aURL +
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" aSessionId=" + aSessionId);
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let localDevice;
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try {
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localDevice = aDevice.QueryInterface(Ci.nsIPresentationLocalDevice);
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} catch (e) {
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/* XXX: Currently, Fennec only support 1-UA devices. Remove this
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* Promise.reject() when it starts to support 2-UA devices.
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*/
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log("Not an 1-UA device.");
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return new Promise.reject();
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}
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return new Promise((aResolve, aReject) => {
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let uuidGenerator = Cc["@mozilla.org/uuid-generator;1"]
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.getService(Ci.nsIUUIDGenerator);
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let requestId = uuidGenerator.generateUUID().toString();
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let handleObserve = (aSubject, aTopic, aData) => {
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log("Got observe: aTopic=" + aTopic);
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let data = JSON.parse(aData);
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if (data.requestId != requestId) {
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return;
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}
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Services.obs.removeObserver(handleObserve,
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TOPIC_PRESENTATION_RECEIVER_LAUNCH_RESPONSE);
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switch (data.result) {
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case "success":
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aResolve(aSubject);
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break;
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case "error":
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aReject();
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break;
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}
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};
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Services.obs.addObserver(handleObserve,
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TOPIC_PRESENTATION_RECEIVER_LAUNCH_RESPONSE);
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let data = {
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url: aURL,
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windowId: localDevice.windowId,
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requestId: requestId,
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};
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Services.obs.notifyObservers(null,
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TOPIC_PRESENTATION_RECEIVER_LAUNCH,
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JSON.stringify(data));
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});
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},
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classID: Components.ID("9c550ef7-3ff6-4bd1-9ad1-5a3735b90d21"),
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QueryInterface: ChromeUtils.generateQI([Ci.nsIPresentationRequestUIGlue]),
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PresentationRequestUIGlue]);
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