Browser Plugin: Simplify BrowserPluginGuestHelper

content/browser/browser_plugin/browser_plugin_guest_helper.cc

 // 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/browser_plugin/browser_plugin_guest_helper.h"
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
-#include "content/browser/web_contents/web_contents_impl.h"
 #include "content/common/drag_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/render_view_host.h"
 
 namespace content {
 
 BrowserPluginGuestHelper::BrowserPluginGuestHelper(
     BrowserPluginGuest* guest,
     RenderViewHost* render_view_host)
     : RenderViewHostObserver(render_view_host),
       guest_(guest) {
 }
 
 BrowserPluginGuestHelper::~BrowserPluginGuestHelper() {
 }
 
 bool BrowserPluginGuestHelper::OnMessageReceived(
     const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(BrowserPluginGuestHelper, message)
-    IPC_MESSAGE_HANDLER(DragHostMsg_UpdateDragCursor, OnUpdateDragCursor)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateRect, OnUpdateRect)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_HandleInputEvent_ACK, OnHandleInputEventAck)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_ShowWidget, OnShowWidget)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_HasTouchEventHandlers,
-                        OnMsgHasTouchEventHandlers)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_SetCursor, OnSetCursor)
- #if defined(OS_MACOSX)
-    // MacOSX creates and populates platform-specific select drop-down menus
-    // whereas other platforms merely create a popup window that the guest
-    // renderer process paints inside.
-    IPC_MESSAGE_HANDLER(ViewHostMsg_ShowPopup, OnShowPopup)
- #endif
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
+  if (ShouldForwardToBrowserPluginGuest(message))
+    return guest_->OnMessageReceived(message);
+  return false;
 }
 
-void BrowserPluginGuestHelper::OnUpdateDragCursor(
-    WebKit::WebDragOperation current_op) {
-  guest_->UpdateDragCursor(current_op);
+// static
+bool BrowserPluginGuestHelper::ShouldForwardToBrowserPluginGuest(
+    const IPC::Message& message) {
+  switch (message.type()) {
+    case DragHostMsg_UpdateDragCursor::ID:
+    case ViewHostMsg_HandleInputEvent_ACK::ID:
+    case ViewHostMsg_HasTouchEventHandlers::ID:
+    case ViewHostMsg_SetCursor::ID:
+ #if defined(OS_MACOSX)
+    case ViewHostMsg_ShowPopup::ID:
+ #endif
+    case ViewHostMsg_ShowWidget::ID:
+    case ViewHostMsg_TakeFocus::ID:
+    case ViewHostMsg_UpdateRect::ID:
+      return true;
+    default:
+      break;
+  }
+  return false;
 }
 
-void BrowserPluginGuestHelper::OnUpdateRect(
-    const ViewHostMsg_UpdateRect_Params& params) {
-  guest_->UpdateRect(render_view_host(), params);
-}
-
-void BrowserPluginGuestHelper::OnHandleInputEventAck(
-    WebKit::WebInputEvent::Type event_type,
-    InputEventAckState ack_result) {
-  guest_->HandleInputEventAck(render_view_host(),
-                              ack_result == INPUT_EVENT_ACK_STATE_CONSUMED);
-}
-
-void BrowserPluginGuestHelper::OnTakeFocus(bool reverse) {
-  guest_->ViewTakeFocus(reverse);
-}
-
-void BrowserPluginGuestHelper::OnShowWidget(int route_id,
-                                            const gfx::Rect& initial_pos) {
-  guest_->ShowWidget(render_view_host(), route_id, initial_pos);
-}
-
-void BrowserPluginGuestHelper::OnMsgHasTouchEventHandlers(bool has_handlers) {
-  guest_->SetIsAcceptingTouchEvents(has_handlers);
-}
-
-void BrowserPluginGuestHelper::OnSetCursor(const WebCursor& cursor) {
-  guest_->SetCursor(cursor);
-}
-
-#if defined(OS_MACOSX)
-void BrowserPluginGuestHelper::OnShowPopup(
-    const ViewHostMsg_ShowPopup_Params& params) {
-  guest_->ShowPopup(render_view_host(), params);
-}
-#endif
-
 }  // namespace content