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// 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.
#ifndef CHROME_BROWSER_UI_PREFS_PREFS_TAB_HELPER_H_
#define CHROME_BROWSER_UI_PREFS_PREFS_TAB_HELPER_H_
#pragma once
#include "chrome/browser/prefs/pref_change_registrar.h"
#include "content/browser/tab_contents/tab_contents_observer.h"
#include "content/public/browser/notification_registrar.h"
class PrefService;
class Profile;
class TabContents;
struct WebPreferences;
// Per-tab class to handle user preferences.
class PrefsTabHelper : public TabContentsObserver,
public content::NotificationObserver {
public:
explicit PrefsTabHelper(TabContents* contents);
virtual ~PrefsTabHelper();
static void RegisterUserPrefs(PrefService* prefs);
PrefService* per_tab_prefs() { return per_tab_prefs_.get(); }
protected:
// Update the RenderView's WebPreferences. Exposed as protected for testing.
virtual void UpdateWebPreferences();
// TabContentsObserver overrides, exposed as protected for testing.
virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
private:
// TabContentsObserver overrides:
virtual void TabContentsDestroyed(TabContents* tab) OVERRIDE;
// content::NotificationObserver overrides:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Update the TabContents's RendererPreferences.
void UpdateRendererPreferences();
Profile* GetProfile();
// Our owning TabContents.
TabContents* contents_;
content::NotificationRegistrar registrar_;
scoped_ptr<PrefService> per_tab_prefs_;
PrefChangeRegistrar pref_change_registrar_;
PrefChangeRegistrar per_tab_pref_change_registrar_;
DISALLOW_COPY_AND_ASSIGN(PrefsTabHelper);
};
#endif // CHROME_BROWSER_UI_PREFS_PREFS_TAB_HELPER_H_
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