1 files changed, 119 insertions, 0 deletions
diff --git a/dom/presentation/PresentationDeviceInfoManager.js b/dom/presentation/PresentationDeviceInfoManager.js
new file mode 100644
index 000000000..29e7d370c
--- /dev/null
+++ b/dom/presentation/PresentationDeviceInfoManager.js
@@ -0,0 +1,119 @@
+/* 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";
+
+const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
+
+function log(aMsg) {
+  //dump("-*- PresentationDeviceInfoManager.js : " + aMsg + "\n");
+}
+
+const PRESENTATIONDEVICEINFOMANAGER_CID = Components.ID("{1bd66bef-f643-4be3-b690-0c656353eafd}");
+const PRESENTATIONDEVICEINFOMANAGER_CONTRACTID = "@mozilla.org/presentation-device/deviceInfo;1";
+
+XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
+                                   "@mozilla.org/childprocessmessagemanager;1",
+                                   "nsIMessageSender");
+
+function PresentationDeviceInfoManager() {}
+
+PresentationDeviceInfoManager.prototype = {
+  __proto__: DOMRequestIpcHelper.prototype,
+
+  classID: PRESENTATIONDEVICEINFOMANAGER_CID,
+  contractID: PRESENTATIONDEVICEINFOMANAGER_CONTRACTID,
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference,
+                                         Ci.nsIObserver,
+                                         Ci.nsIDOMGlobalPropertyInitializer]),
+
+  receiveMessage: function(aMsg) {
+    if (!aMsg || !aMsg.data) {
+      return;
+    }
+
+    let data = aMsg.data;
+
+    log("receive aMsg: " + aMsg.name);
+    switch (aMsg.name) {
+      case "PresentationDeviceInfoManager:OnDeviceChange": {
+        let detail = {
+          detail: {
+            type: data.type,
+            deviceInfo: data.deviceInfo,
+          }
+        };
+        let event = new this._window.CustomEvent("devicechange", Cu.cloneInto(detail, this._window));
+        this.__DOM_IMPL__.dispatchEvent(event);
+        break;
+      }
+      case "PresentationDeviceInfoManager:GetAll:Result:Ok": {
+        let resolver = this.takePromiseResolver(data.requestId);
+
+        if (!resolver) {
+          return;
+        }
+
+        resolver.resolve(Cu.cloneInto(data.devices, this._window));
+        break;
+      }
+      case "PresentationDeviceInfoManager:GetAll:Result:Error": {
+        let resolver = this.takePromiseResolver(data.requestId);
+
+        if (!resolver) {
+          return;
+        }
+
+        resolver.reject(data.error);
+        break;
+      }
+    }
+  },
+
+  init: function(aWin) {
+    log("init");
+    this.initDOMRequestHelper(aWin, [
+      {name: "PresentationDeviceInfoManager:OnDeviceChange", weakRef: true},
+      {name: "PresentationDeviceInfoManager:GetAll:Result:Ok", weakRef: true},
+      {name: "PresentationDeviceInfoManager:GetAll:Result:Error", weakRef: true},
+    ]);
+  },
+
+  uninit: function() {
+    log("uninit");
+    let self = this;
+
+    this.forEachPromiseResolver(function(aKey) {
+      self.takePromiseResolver(aKey).reject("PresentationDeviceInfoManager got destroyed");
+    });
+  },
+
+  get ondevicechange() {
+    return this.__DOM_IMPL__.getEventHandler("ondevicechange");
+  },
+
+  set ondevicechange(aHandler) {
+    this.__DOM_IMPL__.setEventHandler("ondevicechange", aHandler);
+  },
+
+  getAll: function() {
+    log("getAll");
+    let self = this;
+    return this.createPromiseWithId(function(aResolverId) {
+      cpmm.sendAsyncMessage("PresentationDeviceInfoManager:GetAll", {
+        requestId: aResolverId,
+      });
+    });
+  },
+
+  forceDiscovery: function() {
+    cpmm.sendAsyncMessage("PresentationDeviceInfoManager:ForceDiscovery");
+  },
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PresentationDeviceInfoManager]);