Reland Extension Installed InfoBubble

chrome/browser/views/extensions/extension_installed_bubble.h

+// Copyright (c) 2009 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_VIEWS_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_H_
+#define CHROME_BROWSER_VIEWS_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_H_
+
+#include "base/ref_counted.h"
+#include "chrome/browser/views/info_bubble.h"
+#include "chrome/common/notification_observer.h"
+#include "chrome/common/notification_registrar.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+class Browser;
+class Extension;
+class SkBitmap;
+
+// Provides feedback to the user upon successful installation of an
+// extension. Depending on the type of extension, the InfoBubble will
+// point to:
+//    BROWSER_ACTION -> The browserAction icon in the toolbar.
+//    PAGE_ACTION    -> A preview of the pageAction icon in the location
+//                      bar which is shown while the InfoBubble is shown.
+//    GENERIC        -> The wrench menu. This case includes pageActions that
+//                      don't specify a default icon.
+//
+// ExtensionInstallBubble manages its own lifetime.
+class ExtensionInstalledBubble :
+    public InfoBubbleDelegate,
+    public NotificationObserver,
+    public base::RefCountedThreadSafe<ExtensionInstalledBubble> {
+ public:
+  // The behavior and content of this InfoBubble comes in three varieties.
+  enum BubbleType {
+    BROWSER_ACTION,
+    PAGE_ACTION,
+    GENERIC
+  };
+
+  // Creates the ExtensionInstalledBubble and schedules it to be shown once
+  // the extension has loaded. |extension| is the installed extension. |browser|
+  // is the browser window which will host the bubble. |icon| is the install
+  // icon of the extension.
+  static void Show(Extension *extension, Browser *browser, SkBitmap icon);
+
+private:
+  friend class base::RefCountedThreadSafe<ExtensionInstalledBubble>;
+
+  // Private ctor. Registers a listener for EXTENSION_LOADED.
+  ExtensionInstalledBubble(Extension *extension, Browser *browser,
+                           SkBitmap icon);
+
+  ~ExtensionInstalledBubble() {}
+
+  // Shows the bubble. Called internally via PostTask.
+  void ShowInternal();
+
+  // NotificationObserver
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // InfoBubbleDelegate
+  virtual void InfoBubbleClosing(InfoBubble* info_bubble,
+                                 bool closed_by_escape);
+  virtual bool CloseOnEscape() { return true; }
+
+  // Arrow subjects appear on the right side (for RTL), so do not prefer
+  // origin side anchor.
+  virtual bool PreferOriginSideAnchor() { return false; }
+
+  Extension *extension_;
+  Browser *browser_;
+  SkBitmap icon_;
+  NotificationRegistrar registrar_;
+  BubbleType type_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionInstalledBubble);
+};
+
+#endif  // CHROME_BROWSER_VIEWS_EXTENSIONS_EXTENSION_INSTALLED_BUBBLE_H_