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

   1 // Copyright 2014 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_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_VIEWS_H_
   6 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_VIEWS_H_
   7
   8 #include "base/callback.h"
   9 #include "chrome/browser/ui/extensions/extension_action_platform_delegate.h"
  10 #include "content/public/browser/notification_observer.h"
  11 #include "content/public/browser/notification_registrar.h"
  12 #include "ui/base/accelerators/accelerator.h"
  13 #include "ui/views/context_menu_controller.h"
  14
  15 class ToolbarActionViewDelegateViews;
  16
  17 namespace views {
  18 class MenuRunner;
  19 class View;
  20 }
  21
  22 // An abstract "View" for an ExtensionAction (either a BrowserAction or a
  23 // PageAction). This contains the logic for showing the action's popup and
  24 // the context menu. This class doesn't subclass View directly, as the
  25 // implementations for page actions/browser actions are different types of
  26 // views.
  27 // All common logic for executing extension actions should go in this class;
  28 // ToolbarActionViewDelegate classes should only have knowledge relating to
  29 // the views::View wrapper.
  30 class ExtensionActionPlatformDelegateViews
  31     : public ExtensionActionPlatformDelegate,
  32       public content::NotificationObserver,
  33       public ui::AcceleratorTarget,
  34       public views::ContextMenuController {
  35  public:
  36   ExtensionActionPlatformDelegateViews(
  37       ExtensionActionViewController* controller);
  38   ~ExtensionActionPlatformDelegateViews() override;
  39
  40  private:
  41   // ExtensionActionPlatformDelegate:
  42   bool IsMenuRunning() const override;
  43   void RegisterCommand() override;
  44   void OnDelegateSet() override;
  45   void CloseActivePopup() override;
  46   extensions::ExtensionViewHost* ShowPopupWithUrl(
  47       ExtensionActionViewController::PopupShowAction show_action,
  48       const GURL& popup_url,
  49       bool grant_tab_permissions) override;
  50
  51   // content::NotificationObserver:
  52   void Observe(int type,
  53                const content::NotificationSource& source,
  54                const content::NotificationDetails& details) override;
  55
  56   // ui::AcceleratorTarget:
  57   bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
  58   bool CanHandleAccelerators() const override;
  59
  60   // views::ContextMenuController:
  61   void ShowContextMenuForView(views::View* source,
  62                               const gfx::Point& point,
  63                               ui::MenuSourceType source_type) override;
  64
  65   // Shows the context menu for extension action.
  66   void DoShowContextMenu(ui::MenuSourceType source_type);
  67
  68   // Unregisters the accelerator for the extension action's command, if one
  69   // exists. If |only_if_removed| is true, then this will only unregister if the
  70   // command has been removed.
  71   void UnregisterCommand(bool only_if_removed);
  72
  73   // Closes the currently-active menu, if needed. This is the case when there
  74   // is an active menu that wouldn't close automatically when a new one is
  75   // opened.
  76   // Returns true if a menu was closed, false otherwise.
  77   bool CloseActiveMenuIfNeeded();
  78
  79   ToolbarActionViewDelegateViews* GetDelegateViews() const;
  80
  81   // The owning ExtensionActionViewController.
  82   ExtensionActionViewController* controller_;
  83
  84   // Responsible for running the menu.
  85   scoped_ptr<views::MenuRunner> menu_runner_;
  86
  87   // The extension key binding accelerator this extension action is listening
  88   // for (to show the popup).
  89   scoped_ptr<ui::Accelerator> action_keybinding_;
  90
  91   // If non-NULL, this is the next ExtensionActionViewController context menu
  92   // which wants to run once the current owner (this one) is done.
  93   base::Closure followup_context_menu_task_;
  94
  95   content::NotificationRegistrar registrar_;
  96
  97   base::WeakPtrFactory<ExtensionActionPlatformDelegateViews> weak_factory_;
  98
  99   DISALLOW_COPY_AND_ASSIGN(ExtensionActionPlatformDelegateViews);
 100 };
 101
 102 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_ACTION_PLATFORM_DELEGATE_VIEWS_H_