content/public/renderer/render_view_observer.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/public/renderer/render_view_observer.h"
   6
   7 #include "content/renderer/render_view_impl.h"
   8
   9 using WebKit::WebFrame;
  10
  11 namespace content {
  12
  13 RenderViewObserver::RenderViewObserver(RenderView* render_view)
  14     : render_view_(render_view),
  15       routing_id_(MSG_ROUTING_NONE) {
  16   // |render_view| can be NULL on unit testing.
  17   if (render_view) {
  18     RenderViewImpl* impl = static_cast<RenderViewImpl*>(render_view);
  19     routing_id_ = impl->routing_id();
  20     impl->AddObserver(this);
  21   }
  22 }
  23
  24 RenderViewObserver::~RenderViewObserver() {
  25   if (render_view_) {
  26     RenderViewImpl* impl = static_cast<RenderViewImpl*>(render_view_);
  27     impl->RemoveObserver(this);
  28   }
  29 }
  30
  31 void RenderViewObserver::OnDestruct() {
  32   delete this;
  33 }
  34
  35 bool RenderViewObserver::OnMessageReceived(const IPC::Message& message) {
  36   return false;
  37 }
  38
  39 bool RenderViewObserver::Send(IPC::Message* message) {
  40   if (render_view_)
  41     return render_view_->Send(message);
  42
  43   delete message;
  44   return false;
  45 }
  46
  47 RenderView* RenderViewObserver::render_view() const {
  48   return render_view_;
  49 }
  50
  51 void RenderViewObserver::RenderViewGone() {
  52   render_view_ = NULL;
  53 }
  54
  55 }  // namespace content