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// 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.
#ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_WEB_CONTENTS_OBSERVER_H__
#define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_WEB_CONTENTS_OBSERVER_H__
#pragma once
#include <map>
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/web_contents_observer.h"
#include "ui/gfx/size.h"
class WebContentsImpl;
namespace content {
class BrowserPluginWebContentsObserver: public WebContentsObserver,
public NotificationObserver {
public:
BrowserPluginWebContentsObserver(WebContentsImpl* web_contents);
virtual ~BrowserPluginWebContentsObserver();
// A Host BrowserPluginWebContentsObserver keeps track of
// its guests so that if it navigates away, its associated RenderView
// crashes or it is hidden, it takes appropriate action on the guest.
void AddGuest(WebContentsImpl* guest, int64 frame_id);
void RemoveGuest(WebContentsImpl* guest);
WebContentsImpl* host() const { return host_; }
void set_host(WebContentsImpl* host) { host_ = host; }
int instance_id() const { return instance_id_; }
void set_instance_id(int instance_id) { instance_id_ = instance_id; }
// WebContentObserver implementation.
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void DidCommitProvisionalLoadForFrame(
int64 frame_id,
bool is_main_frame,
const GURL& url,
PageTransition transition_type) OVERRIDE;
virtual void RenderViewDeleted(
RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE;
private:
typedef std::map<WebContentsImpl*, int64> GuestMap;
void OnOpenChannelToBrowserPlugin(int32 instance_id,
long long frame_id,
const std::string& src,
const gfx::Size& size);
void OnGuestReady();
void OnResizeGuest(int width, int height);
void OnRendererPluginChannelCreated(const IPC::ChannelHandle& handle);
void DestroyGuests();
// NotificationObserver method override.
virtual void Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) OVERRIDE;
// A scoped container for notification registries.
NotificationRegistrar registrar_;
WebContentsImpl* host_;
// An identifier that uniquely identifies a browser plugin container
// within a host.
int instance_id_;
GuestMap guests_;
};
} // namespace content
#endif // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_WEB_CONTENTS_OBSERVER_H_
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