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      1 // Copyright (c) 2011 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_CHROMEOS_WEBUI_MENU_CONTROL_H_
      6 #define CHROME_BROWSER_CHROMEOS_WEBUI_MENU_CONTROL_H_
      7 #pragma once
      8 
      9 namespace gfx {
     10 class Size;
     11 }  // namespace gfx
     12 
     13 namespace ui {
     14 class MenuModel;
     15 }  // namespace ui
     16 
     17 namespace chromeos {
     18 
     19 // WebUIMenuControl class is used to control the UI counterpart of
     20 // a MenuModel. One instance of WebUIMenuControl is created for each
     21 // MenuModel instance, that is, a submenu will have its own
     22 // WebUIMenuControl.
     23 class WebUIMenuControl {
     24  public:
     25   enum ActivationMode {
     26     ACTIVATE_NO_CLOSE,   // Activate the command without closing menu.
     27     CLOSE_AND_ACTIVATE,  // Close the menu and then activate the command.
     28   };
     29   virtual ~WebUIMenuControl() {}
     30 
     31   // Returns the MenuModel associated with this control.
     32   virtual ui::MenuModel* GetMenuModel() = 0;
     33 
     34   // Activates an item in the |model| at |index|.
     35   virtual void Activate(ui::MenuModel* model,
     36                         int index,
     37                         ActivationMode activation_mode) = 0;
     38 
     39   // Close All menu window from root menu to leaf submenus.
     40   virtual void CloseAll() = 0;
     41 
     42   // Close the submenu (and all decendant submenus).
     43   virtual void CloseSubmenu() = 0;
     44 
     45   // Move the input to parent. Used in keyboard navigation.
     46   virtual void MoveInputToParent() = 0;
     47 
     48   // Move the input to submenu. Used in keyboard navigation.
     49   virtual void MoveInputToSubmenu() = 0;
     50 
     51   // Called when the menu page is loaded. This is used to call
     52   // initialize function in JavaScript.
     53   virtual void OnLoad() = 0;
     54 
     55   // Open submenu using the submenu model at index in the model.
     56   // The top coordinate of the selected menu is passed as |y_top|
     57   // so that the submenu can be aligned to the selected item.
     58   virtual void OpenSubmenu(int index, int y_top) =0;
     59 
     60   // Sets the size of the menu.
     61   virtual void SetSize(const gfx::Size& size) = 0;
     62 };
     63 
     64 }  // namespace chromeos
     65 
     66 #endif  // CHROME_BROWSER_CHROMEOS_WEBUI_MENU_CONTROL_H_
     67