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 "components/infobars/core/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   const extensions::ExtensionViewHost* extension_view_host() const {
  49     return extension_view_host_.get();
  50   }
  51
  52   int height() { return height_; }
  53
  54   bool closing() const { return closing_; }
  55
  56   // Returns the WebContents associated with the ExtensionInfoBarDelegate.
  57   content::WebContents* GetWebContents();
  58
  59  private:
  60   ExtensionInfoBarDelegate(Browser* browser,
  61                            const extensions::Extension* extension,
  62                            const GURL& url,
  63                            content::WebContents* web_contents,
  64                            int height);
  65
  66   // Returns an extension infobar that owns |delegate|.
  67   static scoped_ptr<infobars::InfoBar> CreateInfoBar(
  68       scoped_ptr<ExtensionInfoBarDelegate> delegate);
  69
  70   // InfoBarDelegate.
  71   virtual bool EqualsDelegate(
  72       infobars::InfoBarDelegate* delegate) const override;
  73   virtual void InfoBarDismissed() override;
  74   virtual Type GetInfoBarType() const override;
  75   virtual ExtensionInfoBarDelegate* AsExtensionInfoBarDelegate() override;
  76
  77   // content::NotificationObserver.
  78   virtual void Observe(int type,
  79                        const content::NotificationSource& source,
  80                        const content::NotificationDetails& details) override;
  81
  82   // extensions::ExtensionRegistryObserver.
  83   virtual void OnExtensionUnloaded(
  84       content::BrowserContext* browser_context,
  85       const extensions::Extension* extension,
  86       extensions::UnloadedExtensionInfo::Reason reason) override;
  87
  88 #if defined(TOOLKIT_VIEWS)
  89   Browser* browser_;  // We pass this to the ExtensionInfoBar.
  90 #endif
  91
  92   // The extension host we are showing the InfoBar for.
  93   // TODO(pkasting): Should this live on the InfoBar instead?
  94   scoped_ptr<extensions::ExtensionViewHost> extension_view_host_;
  95
  96   const extensions::Extension* extension_;
  97   content::NotificationRegistrar registrar_;
  98
  99   ScopedObserver<extensions::ExtensionRegistry,
 100                  extensions::ExtensionRegistryObserver>
 101       extension_registry_observer_;
 102
 103   // The requested height of the infobar (in pixels).
 104   int height_;
 105
 106   // Whether we are currently animating to close. This is used to ignore
 107   // ExtensionView::PreferredSizeChanged notifications.
 108   bool closing_;
 109
 110   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarDelegate);
 111 };
 112
 113 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_