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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
function debug(aMsg) {
//dump("-*- B2GPresentationDevicePrompt: " + aMsg + "\n");
}
const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
const kB2GPRESENTATIONDEVICEPROMPT_CONTRACTID = "@mozilla.org/presentation-device/prompt;1";
const kB2GPRESENTATIONDEVICEPROMPT_CID = Components.ID("{4a300c26-e99b-4018-ab9b-c48cf9bc4de1}");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "SystemAppProxy",
"resource://gre/modules/SystemAppProxy.jsm");
function B2GPresentationDevicePrompt() {}
B2GPresentationDevicePrompt.prototype = {
classID: kB2GPRESENTATIONDEVICEPROMPT_CID,
contractID: kB2GPRESENTATIONDEVICEPROMPT_CONTRACTID,
classDescription: "B2G Presentation Device Prompt",
QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationDevicePrompt]),
// nsIPresentationDevicePrompt
promptDeviceSelection: function(aRequest) {
let self = this;
let requestId = Cc["@mozilla.org/uuid-generator;1"]
.getService(Ci.nsIUUIDGenerator).generateUUID().toString();
SystemAppProxy.addEventListener("mozContentEvent", function contentEvent(aEvent) {
let detail = aEvent.detail;
if (detail.id !== requestId) {
return;
}
SystemAppProxy.removeEventListener("mozContentEvent", contentEvent);
switch (detail.type) {
case "presentation-select-result":
debug("device " + detail.deviceId + " is selected by user");
let device = self._getDeviceById(detail.deviceId);
if (!device) {
debug("cancel request because device is not found");
aRequest.cancel(Cr.NS_ERROR_DOM_NOT_FOUND_ERR);
}
aRequest.select(device);
break;
case "presentation-select-deny":
debug("request canceled by user");
aRequest.cancel(Cr.NS_ERROR_DOM_NOT_ALLOWED_ERR);
break;
}
});
let detail = {
type: "presentation-select-device",
origin: aRequest.origin,
requestURL: aRequest.requestURL,
id: requestId,
};
SystemAppProxy.dispatchEvent(detail);
},
_getDeviceById: function(aDeviceId) {
let deviceManager = Cc["@mozilla.org/presentation-device/manager;1"]
.getService(Ci.nsIPresentationDeviceManager);
let devices = deviceManager.getAvailableDevices().QueryInterface(Ci.nsIArray);
for (let i = 0; i < devices.length; i++) {
let device = devices.queryElementAt(i, Ci.nsIPresentationDevice);
if (device.id === aDeviceId) {
return device;
}
}
return null;
},
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([B2GPresentationDevicePrompt]);
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