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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_INFOBARS_INFOBAR_TAB_HELPER_H_
#define CHROME_BROWSER_INFOBARS_INFOBAR_TAB_HELPER_H_
#pragma once
#include "base/basictypes.h"
#include "content/browser/tab_contents/tab_contents_observer.h"
#include "content/common/notification_registrar.h"
class InfoBarDelegate;
class TabContentsWrapper;
// Per-tab info bar manager.
class InfoBarTabHelper : public TabContentsObserver,
public NotificationObserver {
public:
explicit InfoBarTabHelper(TabContentsWrapper* tab_contents);
virtual ~InfoBarTabHelper();
// Adds an InfoBar for the specified |delegate|.
//
// If infobars are disabled for this tab or the tab already has a delegate
// which returns true for InfoBarDelegate::EqualsDelegate(delegate),
// |delegate| is closed immediately without being added.
void AddInfoBar(InfoBarDelegate* delegate);
// Removes the InfoBar for the specified |delegate|.
//
// If infobars are disabled for this tab, this will do nothing, on the
// assumption that the matching AddInfoBar() call will have already closed the
// delegate (see above).
void RemoveInfoBar(InfoBarDelegate* delegate);
// Replaces one infobar with another, without any animation in between.
//
// If infobars are disabled for this tab, |new_delegate| is closed immediately
// without being added, and nothing else happens.
//
// NOTE: This does not perform any EqualsDelegate() checks like AddInfoBar().
void ReplaceInfoBar(InfoBarDelegate* old_delegate,
InfoBarDelegate* new_delegate);
// Enumeration and access functions.
size_t infobar_count() const { return infobars_.size(); }
// WARNING: This does not sanity-check |index|!
InfoBarDelegate* GetInfoBarDelegateAt(size_t index);
void set_infobars_enabled(bool value) { infobars_enabled_ = value; }
// TabContentsObserver overrides:
virtual void RenderViewGone() OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// NotificationObserver overrides:
virtual void Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) OVERRIDE;
private:
void RemoveInfoBarInternal(InfoBarDelegate* delegate, bool animate);
void RemoveAllInfoBars(bool animate);
// Message handlers.
void OnDidBlockDisplayingInsecureContent();
void OnDidBlockRunningInsecureContent();
// Delegates for InfoBars associated with this InfoBarTabHelper.
std::vector<InfoBarDelegate*> infobars_;
bool infobars_enabled_;
NotificationRegistrar registrar_;
// Owning TabContentsWrapper.
TabContentsWrapper* tab_contents_wrapper_;
DISALLOW_COPY_AND_ASSIGN(InfoBarTabHelper);
};
#endif // CHROME_BROWSER_INFOBARS_INFOBAR_TAB_HELPER_H_
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