Index: content/browser/device_orientation/observer_delegate.cc |
diff --git a/content/browser/device_orientation/observer_delegate.cc b/content/browser/device_orientation/observer_delegate.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..da9f11ca07dfc2faf7a9899949afc825f536895c |
--- /dev/null |
+++ b/content/browser/device_orientation/observer_delegate.cc |
@@ -0,0 +1,49 @@ |
+// Copyright (c) 2012 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. |
+ |
+#include "content/browser/device_orientation/observer_delegate.h" |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "content/browser/device_orientation/device_data.h" |
+#include "content/browser/device_orientation/orientation.h" |
+ |
+namespace device_orientation { |
+ |
+ObserverDelegate::ObserverDelegate(DeviceData::Type device_data_type, |
+ Provider* provider, int render_view_id, |
+ IPC::Sender* sender) |
+ : Observer(device_data_type), |
+ provider_(provider), |
+ render_view_id_(render_view_id), |
+ sender_(sender) { |
+ provider_->AddObserver(this); |
+} |
+ |
+ObserverDelegate::~ObserverDelegate() { |
+ provider_->RemoveObserver(this); |
+} |
+ |
+void ObserverDelegate::OnDeviceDataUpdate( |
+ const DeviceData* device_data, DeviceData::Type device_data_type) { |
+ IPC::Message* message = NULL; |
+ |
+ if (device_data) |
+ message = device_data->CreateIPCMessage(render_view_id_); |
+ else { |
+ scoped_ptr<DeviceData> empty_device_data(EmptyDeviceData(device_data_type)); |
+ if (empty_device_data.get()) |
+ message = empty_device_data->CreateIPCMessage(render_view_id_); |
+ } |
+ |
+ if (message) |
+ sender_->Send(message); |
+} |
+ |
+DeviceData* ObserverDelegate::EmptyDeviceData(DeviceData::Type type) { |
hans
2012/07/18 17:21:02
maybe we should just DCHECK that type is kTypeOrie
aousterh
2012/07/20 11:18:52
Done.
|
+ if (type == DeviceData::kTypeOrientation) |
+ return new Orientation(); |
+ return NULL; |
+} |
+ |
+} // namespace device_orientation |