bluetooth: Add Device connection logic and accompanying user interface.

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/.
  */
 
 cr.define('bluetooth_internals', function() {
+
+  var deviceAddressToProxy = new Map();
+
   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.detail.deviceInfo);
         });
         adapterBroker.addEventListener('devicechanged', function(event) {
           devices.addOrUpdate(event.detail.deviceInfo);
         });
         adapterBroker.addEventListener('deviceremoved', function(event) {
           devices.remove(event.detail.deviceInfo);
         });
 
         response.devices.forEach(devices.addOrUpdate,
                                  devices /* this */);
 
         var deviceTable = new device_table.DeviceTable();
+
+        deviceTable.addEventListener('inspectpressed', function(event) {
+          var address = event.detail.address;
+          var proxy = deviceAddressToProxy.get(address);
+
+          if (proxy) {
+            // Device is already connected, so disconnect.
+            device.disconnect();
+            deviceAddressToProxy.delete(address);
+            devices.updateConnectionStatus(address, 'disconnected');
+          } else {
+            devices.updateConnectionStatus(address, 'connecting');
+            adapterBroker.connectToDevice(address).then(function(deviceProxy) {
+              if (!devices.getByAddress(address)) {
+                // Device no longer in list, so drop the connection.
+                deviceProxy.disconnect();
+                return;
+              }
+
+              deviceAddressToProxy.set(address, deviceProxy);
+              devices.updateConnectionStatus(address, 'connected');
+
+              // Fetch services asynchronously.
+              deviceProxy.getServices().then(function(response) {

[ortuno, 2016/11/10 02:16:38]

Should this information be saved in the DeviceDetailsView?

[mbrunson, 2016/11/10 04:18:29]

Yes. This will be cached in the DeviceDetailsView. I'll add a TODO for this
whole section of connection log to move when that gets added.

+                var deviceInfo = devices.getByAddress(address);
+                deviceInfo.services = response.services;
+                devices.addOrUpdate(deviceInfo);
+              });
+            }).catch(function(error) {
+              devices.updateConnectionStatus(address, 'disconnected', error);
+            });
+          }
+        });
+
         deviceTable.setDevices(devices);
         document.body.appendChild(deviceTable);
       })
       .catch(function(error) { console.error(error); });
   }
 
   return {
     initializeViews: initializeViews
   };
 
 });
 
 document.addEventListener(
     'DOMContentLoaded', bluetooth_internals.initializeViews);