chrome/browser/extensions/extension_infobar_delegate.h

   1 // Copyright (c) 2012 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
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/scoped_observer.h"
  10 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
  11 #include "content/public/browser/notification_observer.h"
  12 #include "content/public/browser/notification_registrar.h"
  13 #include "extensions/browser/extension_registry_observer.h"
  14
  15 class Browser;
  16 class GURL;
  17
  18 namespace content {
  19 class WebContents;
  20 }
  21
  22 namespace extensions {
  23 class Extension;
  24 class ExtensionRegistry;
  25 class ExtensionViewHost;
  26 }
  27
  28 // The InfobarDelegate for creating and managing state for the ExtensionInfobar
  29 // plus monitor when the extension goes away.
  30 class ExtensionInfoBarDelegate : public infobars::InfoBarDelegate,
  31                                  public content::NotificationObserver,
  32                                  public extensions::ExtensionRegistryObserver {
  33  public:
  34   virtual ~ExtensionInfoBarDelegate();
  35
  36   // Creates an extension infobar and delegate and adds the infobar to the
  37   // infobar service for |web_contents|.
  38   static void Create(content::WebContents* web_contents,
  39                      Browser* browser,
  40                      const extensions::Extension* extension,
  41                      const GURL& url,
  42                      int height);
  43
  44   const extensions::Extension* extension() { return extension_; }
  45   extensions::ExtensionViewHost* extension_view_host() {
  46     return extension_view_host_.get();
  47   }
  48   int height() { return height_; }
  49
  50   bool closing() const { return closing_; }
  51
  52   // Returns the WebContents associated with the ExtensionInfoBarDelegate.
  53   content::WebContents* GetWebContents();
  54
  55  private:
  56   ExtensionInfoBarDelegate(Browser* browser,
  57                            const extensions::Extension* extension,
  58                            const GURL& url,
  59                            content::WebContents* web_contents,
  60                            int height);
  61
  62   // Returns an extension infobar that owns |delegate|.
  63   static scoped_ptr<infobars::InfoBar> CreateInfoBar(
  64       scoped_ptr<ExtensionInfoBarDelegate> delegate);
  65
  66   // InfoBarDelegate.
  67   virtual bool EqualsDelegate(
  68       infobars::InfoBarDelegate* delegate) const OVERRIDE;
  69   virtual void InfoBarDismissed() OVERRIDE;
  70   virtual Type GetInfoBarType() const OVERRIDE;
  71   virtual ExtensionInfoBarDelegate* AsExtensionInfoBarDelegate() OVERRIDE;
  72
  73   // content::NotificationObserver.
  74   virtual void Observe(int type,
  75                        const content::NotificationSource& source,
  76                        const content::NotificationDetails& details) OVERRIDE;
  77
  78   // extensions::ExtensionRegistryObserver.
  79   virtual void OnExtensionUnloaded(
  80       content::BrowserContext* browser_context,
  81       const extensions::Extension* extension,
  82       extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE;
  83
  84 #if defined(TOOLKIT_VIEWS)
  85   Browser* browser_;  // We pass this to the ExtensionInfoBar.
  86 #endif
  87
  88   // The extension host we are showing the InfoBar for.
  89   // TODO(pkasting): Should this live on the InfoBar instead?
  90   scoped_ptr<extensions::ExtensionViewHost> extension_view_host_;
  91
  92   const extensions::Extension* extension_;
  93   content::NotificationRegistrar registrar_;
  94
  95   ScopedObserver<extensions::ExtensionRegistry,
  96                  extensions::ExtensionRegistryObserver>
  97       extension_registry_observer_;
  98
  99   // The requested height of the infobar (in pixels).
 100   int height_;
 101
 102   // Whether we are currently animating to close. This is used to ignore
 103   // ExtensionView::PreferredSizeChanged notifications.
 104   bool closing_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarDelegate);
 107 };
 108
 109 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_