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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
      6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
     10 
     11 class Browser;
     12 class Extension;
     13 class ExtensionHost;
     14 class TabContents;
     15 
     16 // The InfobarDelegate for creating and managing state for the ExtensionInfobar
     17 // plus monitor when the extension goes away.
     18 class ExtensionInfoBarDelegate : public InfoBarDelegate,
     19                                  public NotificationObserver {
     20  public:
     21   // The observer for when the delegate dies.
     22   class DelegateObserver {
     23    public:
     24     virtual void OnDelegateDeleted() = 0;
     25 
     26    protected:
     27     virtual ~DelegateObserver() {}
     28   };
     29 
     30   ExtensionInfoBarDelegate(Browser* browser,
     31                            TabContents* contents,
     32                            const Extension* extension,
     33                            const GURL& url);
     34 
     35   const Extension* extension() { return extension_; }
     36   ExtensionHost* extension_host() { return extension_host_.get(); }
     37 
     38   void set_observer(DelegateObserver* observer) { observer_ = observer; }
     39 
     40   bool closing() const { return closing_; }
     41 
     42  private:
     43   virtual ~ExtensionInfoBarDelegate();
     44 
     45   // InfoBarDelegate:
     46   virtual InfoBar* CreateInfoBar();
     47   virtual bool EqualsDelegate(InfoBarDelegate* delegate) const;
     48   virtual void InfoBarDismissed();
     49   virtual void InfoBarClosed();
     50   virtual Type GetInfoBarType() const;
     51   virtual ExtensionInfoBarDelegate* AsExtensionInfoBarDelegate();
     52 
     53   // NotificationObserver:
     54   virtual void Observe(NotificationType type,
     55                        const NotificationSource& source,
     56                        const NotificationDetails& details);
     57 
     58   // The extension host we are showing the InfoBar for. The delegate needs to
     59   // own this since the InfoBar gets deleted and recreated when you switch tabs
     60   // and come back (and we don't want the user's interaction with the InfoBar to
     61   // get lost at that point).
     62   scoped_ptr<ExtensionHost> extension_host_;
     63 
     64   // The observer monitoring when the delegate dies.
     65   DelegateObserver* observer_;
     66 
     67   const Extension* extension_;
     68   TabContents* tab_contents_;
     69   NotificationRegistrar registrar_;
     70 
     71   // Whether we are currently animating to close. This is used to ignore
     72   // ExtensionView::PreferredSizeChanged notifications.
     73   bool closing_;
     74 
     75   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarDelegate);
     76 };
     77 
     78 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
     79