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// Copyright 2013 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_TASK_MANAGER_TAB_CONTENTS_RESOURCE_PROVIDER_H_
#define CHROME_BROWSER_TASK_MANAGER_TAB_CONTENTS_RESOURCE_PROVIDER_H_
#include <map>
#include "base/basictypes.h"
#include "chrome/browser/task_manager/resource_provider.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class TaskManager;
namespace content {
class WebContents;
class NotificationSource;
class NotificationDetails;
}
namespace task_manager {
class TabContentsResource;
// Provides resources for tab contents, prerendered pages, Instant pages, and
// background printing pages.
class TabContentsResourceProvider : public ResourceProvider,
public content::NotificationObserver {
public:
explicit TabContentsResourceProvider(TaskManager* task_manager);
virtual Resource* GetResource(int origin_pid,
int render_process_host_id,
int routing_id) OVERRIDE;
virtual void StartUpdating() OVERRIDE;
virtual void StopUpdating() OVERRIDE;
// content::NotificationObserver method:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
private:
virtual ~TabContentsResourceProvider();
void Add(content::WebContents* web_contents);
void Remove(content::WebContents* web_contents);
void AddToTaskManager(content::WebContents* web_contents);
// Whether we are currently reporting to the task manager. Used to ignore
// notifications sent after StopUpdating().
bool updating_;
TaskManager* task_manager_;
// Maps the actual resources (the WebContentses) to the Task Manager
// resources.
std::map<content::WebContents*, TabContentsResource*> resources_;
// A scoped container for notification registries.
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(TabContentsResourceProvider);
};
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_TAB_CONTENTS_RESOURCE_PROVIDER_H_
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