1 files changed, 81 insertions, 0 deletions
diff --git a/chromium/content/renderer/screen_orientation/screen_orientation_dispatcher.cc b/chromium/content/renderer/screen_orientation/screen_orientation_dispatcher.cc
new file mode 100644
index 00000000000..e67cc73634e
--- /dev/null
+++ b/chromium/content/renderer/screen_orientation/screen_orientation_dispatcher.cc
@@ -0,0 +1,81 @@
+// Copyright 2014 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/renderer/screen_orientation/screen_orientation_dispatcher.h"
+
+#include "content/common/screen_orientation_messages.h"
+
+namespace content {
+
+ScreenOrientationDispatcher::ScreenOrientationDispatcher(
+    RenderFrame* render_frame)
+    : RenderFrameObserver(render_frame) {
+}
+
+ScreenOrientationDispatcher::~ScreenOrientationDispatcher() {
+}
+
+bool ScreenOrientationDispatcher::OnMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+
+  IPC_BEGIN_MESSAGE_MAP(ScreenOrientationDispatcher, message)
+    IPC_MESSAGE_HANDLER(ScreenOrientationMsg_LockSuccess,
+                        OnLockSuccess)
+    IPC_MESSAGE_HANDLER(ScreenOrientationMsg_LockError,
+                        OnLockError)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+
+  return handled;
+}
+
+void ScreenOrientationDispatcher::OnLockSuccess(
+    int request_id,
+    unsigned angle,
+    blink::WebScreenOrientationType orientation) {
+  blink::WebLockOrientationCallback* callback =
+      pending_callbacks_.Lookup(request_id);
+  if (!callback)
+    return;
+  callback->onSuccess(angle, orientation);
+  pending_callbacks_.Remove(request_id);
+}
+
+void ScreenOrientationDispatcher::OnLockError(
+    int request_id,
+    blink::WebLockOrientationCallback::ErrorType error) {
+  blink::WebLockOrientationCallback* callback =
+      pending_callbacks_.Lookup(request_id);
+  if (!callback)
+    return;
+  callback->onError(error);
+  pending_callbacks_.Remove(request_id);
+}
+
+void ScreenOrientationDispatcher::CancelPendingLocks() {
+  for (CallbackMap::Iterator<blink::WebLockOrientationCallback>
+       iterator(&pending_callbacks_); !iterator.IsAtEnd(); iterator.Advance()) {
+    iterator.GetCurrentValue()->onError(
+        blink::WebLockOrientationCallback::ErrorTypeCanceled);
+    pending_callbacks_.Remove(iterator.GetCurrentKey());
+  }
+}
+
+void ScreenOrientationDispatcher::lockOrientation(
+    blink::WebScreenOrientationLockType orientation,
+    blink::WebLockOrientationCallback* callback) {
+  CancelPendingLocks();
+
+  int request_id = pending_callbacks_.Add(callback);
+  Send(new ScreenOrientationHostMsg_LockRequest(
+      routing_id(), orientation, request_id));
+}
+
+void ScreenOrientationDispatcher::unlockOrientation() {
+  CancelPendingLocks();
+  Send(new ScreenOrientationHostMsg_Unlock(routing_id()));
+}
+
+}  // namespace content