Create ExtensionActionView class

chrome/browser/ui/views/extensions/extension_action_view_delegate.h

+// Copyright 2014 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_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_VIEW_DELEGATE_H_
+#define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_VIEW_DELEGATE_H_
+
+namespace content {
+class WebContents;
+}
+
+namespace views {
+class FocusManager;
+class View;
+class Widget;
+}
+
+// The view that surrounds an ExtensionAction and owns the
+// ExtensionActionViewController. Since different actions can subclass
+// different views, we don't derive views::View directly here.
+class ExtensionActionViewDelegate {
+ public:
+  // Returns |this| as a view. We need this because our subclasses implement
+  // different kinds of views, and inheriting View here is a really bad idea.
+  virtual views::View* GetAsView() = 0;
+
+  // Returns true if this view is being shown inside a menu.
+  virtual bool IsShownInMenu() = 0;
+
+  // Returns the FocusManager to use when registering accelerators.
+  virtual views::FocusManager* GetFocusManagerForAccelerator() = 0;
+
+  // Returns the parent for the associated context menu.
+  virtual views::Widget* GetParentForContextMenu() = 0;
+
+  // Returns the reference view for the extension action's popup.
+  virtual views::View* GetReferenceViewForPopup() = 0;
+
+  // Returns the current web contents.
+  virtual content::WebContents* GetCurrentWebContents() = 0;
+
+  // Hides whatever popup is active (even if it's not this one).
+  virtual void HideActivePopup() = 0;
+
+  // Called when the icon is updated; this is forwarded from the icon factory.
+  virtual void OnIconUpdated() = 0;
+
+  // Called when a popup is shown. See ExecuteAction() for the definition of
+  // |grant_tab_permissions|.
+  virtual void OnPopupShown(bool grant_tab_permissions) {}
+
+  // Does any additional cleanup after the popup is closed.
+  virtual void CleanupPopup() {}
+
+  // Called immediately before the context menu is shown.
+  virtual void OnWillShowContextMenus() {}
+
+  // Called once the context menu has closed.
+  // This may not be called if the context menu is showing and |this| is
+  // deleted.
+  virtual void OnContextMenuDone() {}
+
+ protected:
+  virtual ~ExtensionActionViewDelegate() {}
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_VIEW_DELEGATE_H_