86 lines
2.5 KiB
JavaScript
86 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict"
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function debug(aMsg) {
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//dump("-*- PresentationRequestUIGlue: " + aMsg + "\n");
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}
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const { interfaces: Ci, utils: Cu, classes: Cc } = 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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XPCOMUtils.defineLazyModuleGetter(this, "SystemAppProxy",
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"resource://gre/modules/SystemAppProxy.jsm");
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function PresentationRequestUIGlue() {
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// This is to store the session ID / resolver binding.
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// An example of the object literal is shown below:
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//
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// {
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// "sessionId1" : resolver1,
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// ...
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// }
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this._resolvers = {};
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// Listen to the result for the opened iframe from front-end.
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SystemAppProxy.addEventListener("mozPresentationContentEvent", aEvent => {
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let detail = aEvent.detail;
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switch (detail.type) {
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case "presentation-receiver-launched": {
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let sessionId = detail.id;
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let resolver = this._resolvers[sessionId];
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if (!resolver) {
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debug("No correspondent resolver for session ID: " + sessionId);
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return;
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}
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delete this._resolvers[sessionId];
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resolver.resolve(detail.frame);
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break;
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}
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case "presentation-receiver-permission-denied": {
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let sessionId = detail.id;
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let resolver = this._resolvers[sessionId];
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if (!resolver) {
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debug("No correspondent resolver for session ID: " + sessionId);
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return;
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}
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delete this._resolvers[sessionId];
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resolver.reject();
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break;
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}
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default:
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return;
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}
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});
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}
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PresentationRequestUIGlue.prototype = {
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sendRequest: function(aUrl, aSessionId) {
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return new Promise(function(aResolve, aReject) {
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this._resolvers[aSessionId] = {
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resolve: aResolve,
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reject: aReject,
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};
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SystemAppProxy._sendCustomEvent("mozPresentationChromeEvent",
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{ type: "presentation-launch-receiver",
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url: aUrl,
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id: aSessionId });
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}.bind(this));
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},
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classID: Components.ID("{ccc8a839-0b64-422b-8a60-fb2af0e376d0}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationRequestUIGlue])
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PresentationRequestUIGlue]);
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