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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 CHROME_BROWSER_TAB_RENDER_WATCHER_H_
#define CHROME_BROWSER_TAB_RENDER_WATCHER_H_
#pragma once
#include "base/compiler_specific.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace content {
class RenderViewHost;
class WebContents;
}
// This class watches given WebContents's loading and rendering state change.
class TabRenderWatcher : public content::NotificationObserver {
public:
class Delegate {
public:
virtual void OnRenderHostCreated(content::RenderViewHost* host) = 0;
virtual void OnTabMainFrameLoaded() = 0;
virtual void OnTabMainFrameRender() = 0;
};
TabRenderWatcher(content::WebContents* tab, Delegate* delegate);
private:
// Overridden from content::NotificationObserver
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Has the renderer loaded the page yet?
bool loaded_;
// WebContents that this class watches.
content::WebContents* web_contents_;
// Delegate to notify.
Delegate* delegate_;
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(TabRenderWatcher);
};
#endif // CHROME_BROWSER_TAB_RENDER_WATCHER_H_
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