1 files changed, 136 insertions, 0 deletions
diff --git a/apps/system/js/bluetooth.js b/apps/system/js/bluetooth.js
new file mode 100644
index 0000000..3a77cc7
--- /dev/null
+++ b/apps/system/js/bluetooth.js
@@ -0,0 +1,136 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
+var Bluetooth = {
+
+  /* this property store a reference of the default adapter */
+  defaultAdapter: null,
+
+  /* keep a global connected property here */
+  connected: false,
+
+  init: function bt_init() {
+    if (!window.navigator.mozSettings)
+      return;
+
+    var bluetooth = window.navigator.mozBluetooth;
+
+    SettingsListener.observe('bluetooth.enabled', true, function(value) {
+      if (!bluetooth) {
+        // roll back the setting value to notify the UIs
+        // that Bluetooth interface is not available
+        if (value) {
+          SettingsListener.getSettingsLock().set({
+            'bluetooth.enabled': false
+          });
+        }
+        return;
+      }
+    });
+
+    var self = this;
+    // when bluetooth adapter is ready, emit event to notify QuickSettings
+    // and try to get defaultAdapter at this moment
+    bluetooth.onadapteradded = function bt_onAdapterAdded() {
+      var evt = document.createEvent('CustomEvent');
+      evt.initCustomEvent('bluetooth-adapter-added',
+        /* canBubble */ true, /* cancelable */ false, null);
+      window.dispatchEvent(evt);
+      self.initDefaultAdapter();
+    };
+    // if bluetooth is enabled in booting time, try to get adapter now
+    this.initDefaultAdapter();
+
+    // when bluetooth is really disabled, emit event to notify QuickSettings
+    bluetooth.ondisabled = function bt_onDisabled() {
+      var evt = document.createEvent('CustomEvent');
+      evt.initCustomEvent('bluetooth-disabled',
+        /* canBubble */ true, /* cancelable */ false, null);
+      window.dispatchEvent(evt);
+    };
+
+    /* for v1, we only support two use cases for bluetooth connection:
+     *   1. connecting with a headset
+     *   2. transfering a file to/from another device
+     * So we need to monitor their event messages to know we are (aren't)
+     * connected, then summarize to an event and dispatch to StatusBar
+     */
+
+    // In headset connected case:
+    navigator.mozSetMessageHandler('bluetooth-hfp-status-changed',
+      this.updateConnected.bind(this)
+    );
+
+    /* In file transfering case:
+     * since System Message can't be listened in two js files within a app,
+     * so we listen here but dispatch events to bluetooth_transfer.js
+     * when getting bluetooth file transfer start/complete system messages
+     */
+    var self = this;
+    navigator.mozSetMessageHandler('bluetooth-opp-transfer-start',
+      function bt_fileTransferUpdate(transferInfo) {
+        self.updateConnected();
+        var evt = document.createEvent('CustomEvent');
+        evt.initCustomEvent('bluetooth-opp-transfer-start',
+          /* canBubble */ true, /* cancelable */ false,
+          {transferInfo: transferInfo});
+        window.dispatchEvent(evt);
+      }
+    );
+
+    navigator.mozSetMessageHandler('bluetooth-opp-transfer-complete',
+      function bt_fileTransferUpdate(transferInfo) {
+        self.updateConnected();
+        var evt = document.createEvent('CustomEvent');
+        evt.initCustomEvent('bluetooth-opp-transfer-complete',
+          /* canBubble */ true, /* cancelable */ false,
+          {transferInfo: transferInfo});
+        window.dispatchEvent(evt);
+      }
+    );
+
+  },
+
+  // Get adapter for BluetoothTransfer when everytime bluetooth is enabled
+  initDefaultAdapter: function bt_initDefaultAdapter() {
+    var bluetooth = window.navigator.mozBluetooth;
+    var self = this;
+
+    if (!bluetooth || !bluetooth.enabled ||
+        !('getDefaultAdapter' in bluetooth))
+      return;
+
+    var req = bluetooth.getDefaultAdapter();
+    req.onsuccess = function bt_gotDefaultAdapter(evt) {
+      self.defaultAdapter = req.result;
+    };
+  },
+
+  updateConnected: function bt_updateConnected() {
+    var bluetooth = window.navigator.mozBluetooth;
+
+    if (!bluetooth || !('isConnected' in bluetooth))
+      return;
+
+    var wasConnected = this.connected;
+    this.connected =
+      bluetooth.isConnected(0x111E) || bluetooth.isConnected(0x1105);
+
+    if (wasConnected !== this.connected) {
+      var evt = document.createEvent('CustomEvent');
+      evt.initCustomEvent('bluetoothconnectionchange',
+        /* canBubble */ true, /* cancelable */ false,
+        {deviceConnected: this.connected});
+      window.dispatchEvent(evt);
+    }
+  },
+
+  // This function is called by external (BluetoothTransfer) for re-use adapter
+  getAdapter: function bt_getAdapter() {
+    return this.defaultAdapter;
+  }
+};
+
+Bluetooth.init();