| // Copyright (c) 2011 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/public/renderer/render_view_observer.h" |
| |
| #include "content/renderer/render_view_impl.h" |
| |
| namespace content { |
| |
| RenderViewObserver::RenderViewObserver(RenderView* render_view) |
| : render_view_(static_cast<RenderViewImpl*>(render_view)), |
| routing_id_(MSG_ROUTING_NONE) { |
| // |render_view_| can be null on unit testing or if Observe() is used. |
| if (render_view_) { |
| routing_id_ = render_view_->GetRoutingID(); |
| render_view_->AddObserver(this); |
| } |
| } |
| |
| RenderViewObserver::~RenderViewObserver() { |
| if (render_view_) |
| render_view_->RemoveObserver(this); |
| } |
| |
| bool RenderViewObserver::OnMessageReceived(const IPC::Message& message) { |
| return false; |
| } |
| |
| bool RenderViewObserver::Send(IPC::Message* message) { |
| if (render_view_) |
| return render_view_->Send(message); |
| |
| delete message; |
| return false; |
| } |
| |
| RenderView* RenderViewObserver::render_view() const { |
| return render_view_; |
| } |
| |
| void RenderViewObserver::RenderViewGone() { |
| render_view_ = nullptr; |
| } |
| |
| void RenderViewObserver::Observe(RenderView* render_view) { |
| if (render_view_) { |
| render_view_->RemoveObserver(this); |
| routing_id_ = MSG_ROUTING_NONE; |
| } |
| |
| render_view_ = static_cast<RenderViewImpl*>(render_view); |
| if (render_view_) { |
| routing_id_ = render_view_->GetRoutingID(); |
| render_view_->AddObserver(this); |
| } |
| } |
| |
| } // namespace content |