bluetooth: Componentize device list in chrome://bluetooth-internals.

chrome/browser/resources/bluetooth_internals/bluetooth_internals.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * Javascript for bluetooth_internals.html, served from
  *     chrome://bluetooth-internals/.
  */
 
-(function() {
-  var adapter, adapterClient, bluetoothAdapter, bluetoothDevice, connection;
+cr.define('bluetooth_internals', function() {
+  function initializeViews() {
+    var adapterBroker = null;
+    adapter_broker.getAdapterBroker()
+      .then(function(broker) { adapterBroker = broker; })
+      .then(function() { return adapterBroker.getInfo(); })
+      .then(function(response) { console.log('adapter', response.info); })
+      .then(function() { return adapterBroker.getDevices(); })
+      .then(function(response) {
+        // Hook up device collection events.
+        var devices = new device_collection.DeviceCollection([]);
+        adapterBroker.addEventListener('deviceadded', function(event) {
+          devices.addOrUpdate(event.deviceInfo);
+        });
+        adapterBroker.addEventListener('devicechanged', function(event) {
+          devices.addOrUpdate(event.deviceInfo);
+        });
+        adapterBroker.addEventListener('deviceremoved', function(event) {
+          devices.remove(event.deviceInfo);
+        });
 
-  var REMOVED_CSS = 'removed';
+        response.devices.forEach(devices.addOrUpdate,
+                                 devices /* this */);
 
-  /*
-   * Data model for a cached device.
-   * @constructor
-   * @param {!bluetoothDevice.DeviceInfo} info
-   */
-  var Device = function(info) { this.info = info; };
+        var deviceTable = new device_table.DeviceTable();
+        deviceTable.setDevices(devices);
+        document.body.appendChild(deviceTable);
+      })
+      .catch(function(error) { console.error(error); });
+  }
 
-  /**
-   * The implementation of AdapterClient in
-   *     device/bluetooth/public/interfaces/adapter.mojom. This also manages the
-   *     client-side collection of devices.
-   * @constructor
-   */
-  var AdapterClient = function() { this.devices_ = new Map(); };
-  AdapterClient.prototype = {
-    /**
-     * Caches the device info and updates the device list.
-     * @param {!bluetoothDevice.DeviceInfo} deviceInfo
-     */
-    deviceAdded: function(deviceInfo) {
-      if (this.devices_.has(deviceInfo.address)) {
-        var deviceElement = $(deviceInfo.address);
-        deviceElement.classList.remove(REMOVED_CSS);
-      } else {
-        this.devices_.set(deviceInfo.address, new Device(deviceInfo));
-
-        var deviceRowTemplate = $('device-row-template');
-        var deviceRow = document.importNode(
-            deviceRowTemplate.content.children[0], true /* deep */);
-        deviceRow.id = deviceInfo.address;
-
-        var deviceList = $('device-list');
-        deviceList.appendChild(deviceRow);
-      }
-
-      this.deviceChanged(deviceInfo);
-    },
-
-    /**
-     * Marks device as removed.
-     * @param {!bluetoothDevice.DeviceInfo} deviceInfo
-     */
-    deviceRemoved: function(deviceInfo) {
-      $(deviceInfo.address).classList.add(REMOVED_CSS);
-    },
-
-    /**
-     * Updates cached device and updates the device list.
-     * @param {!bluetoothDevice.DeviceInfo} deviceInfo
-     */
-    deviceChanged: function(deviceInfo) {
-      console.log(new Date(), deviceInfo);
-
-      assert(this.devices_.has(deviceInfo.address), 'Device does not exist.');
-
-      this.devices_.get(deviceInfo.address).info = deviceInfo;
-
-      var deviceRow = $(deviceInfo.address);
-      deviceRow.querySelector('.device-name').textContent =
-          deviceInfo.name_for_display;
-      deviceRow.querySelector('.device-address').textContent =
-          deviceInfo.address;
-
-      var rssi = (deviceInfo.rssi && deviceInfo.rssi.value) ||
-          deviceRow.querySelector('.device-rssi').textContent;
-      deviceRow.querySelector('.device-rssi').textContent = rssi;
-    }
+  return {
+    initializeViews: initializeViews
   };
 
-  /**
-   * Initializes Mojo proxies for page and Bluetooth services.
-   * @return {!Promise} resolves if adapter is acquired, rejects if Bluetooth
-   *     is not supported.
-   */
-  function initializeProxies() {
-    return importModules([
-      'content/public/renderer/frame_interfaces',
-      'device/bluetooth/public/interfaces/adapter.mojom',
-      'device/bluetooth/public/interfaces/device.mojom',
-      'mojo/public/js/connection',
-    ]).then(function([frameInterfaces, ...modules]) {
-      // Destructure here to assign global variables.
-      [bluetoothAdapter, bluetoothDevice, connection] = modules;
+});
 
-      // Hook up the instance properties.
-      AdapterClient.prototype.__proto__ =
-          bluetoothAdapter.AdapterClient.stubClass.prototype;
-
-      var adapterFactory = connection.bindHandleToProxy(
-          frameInterfaces.getInterface(bluetoothAdapter.AdapterFactory.name),
-          bluetoothAdapter.AdapterFactory);
-
-      // Get an Adapter service.
-      return adapterFactory.getAdapter();
-    }).then(function(response) {
-      if (!response.adapter) {
-        throw new Error('Bluetooth Not Supported on this platform.');
-      }
-
-      adapter = connection.bindHandleToProxy(response.adapter,
-                                             bluetoothAdapter.Adapter);
-
-      // Create a message pipe and bind one end to client
-      // implementation and the other to the Adapter service.
-      adapterClient = new AdapterClient();
-      adapter.setClient(connection.bindStubDerivedImpl(adapterClient));
-    });
-  }
-
-  document.addEventListener('DOMContentLoaded', function() {
-    initializeProxies()
-      .then(function() { return adapter.getInfo(); })
-      .then(function(response) { console.log('adapter', response.info); })
-      .then(function() { return adapter.getDevices(); })
-      .then(function(response) {
-        response.devices.forEach(adapterClient.deviceAdded, adapterClient);
-      })
-      .catch(function(error) { console.error(error); });
-  });
-})();
+document.addEventListener(
+    'DOMContentLoaded', bluetooth_internals.initializeViews);