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..05798101923b3cd4bcd2a959a97e38bc27991edf |
--- /dev/null |
+++ b/content/browser/device_orientation/observer_delegate.cc |
@@ -0,0 +1,42 @@ |
+// 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/logging.h" |
+#include "content/browser/device_orientation/device_data.h" |
+#include "content/browser/device_orientation/orientation.h" |
+#include "ipc/ipc_sender.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) { |
+ scoped_refptr<const DeviceData> new_device_data(device_data); |
+ if (!new_device_data.get()) |
+ new_device_data = EmptyDeviceData(device_data_type); |
+ |
+ sender_->Send(new_device_data->CreateIPCMessage(render_view_id_)); |
+} |
+ |
+DeviceData* ObserverDelegate::EmptyDeviceData(DeviceData::Type type) { |
+ DCHECK(type == DeviceData::kTypeOrientation); |
+ return new Orientation(); |
+} |
+ |
+} // namespace device_orientation |