| // Copyright 2013 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 ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_ |
| #define ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/launcher/launcher_types.h" |
| #include "base/strings/string16.h" |
| #include "ui/base/models/simple_menu_model.h" |
| |
| namespace aura { |
| class RootWindow; |
| } |
| |
| namespace ui { |
| class Event; |
| } |
| |
| namespace ash { |
| |
| // A special menu model which keeps track of an "active" menu item. |
| class ASH_EXPORT LauncherMenuModel : public ui::SimpleMenuModel { |
| public: |
| explicit LauncherMenuModel(ui::SimpleMenuModel::Delegate* delegate) |
| : ui::SimpleMenuModel(delegate) {} |
| |
| // Returns |true| when the given |command_id| is active and needs to be drawn |
| // in a special state. |
| virtual bool IsCommandActive(int command_id) const = 0; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(LauncherMenuModel); |
| }; |
| |
| // Delegate for the LauncherItem. |
| class ASH_EXPORT LauncherItemDelegate { |
| public: |
| virtual ~LauncherItemDelegate() {} |
| |
| // Invoked when the user clicks on a window entry in the launcher. |
| // |event| is the click event. The |event| is dispatched by a view |
| // and has an instance of |views::View| as the event target |
| // but not |aura::Window|. If the |event| is of type KeyEvent, it is assumed |
| // that this was triggered by keyboard action (Alt+<number>) and special |
| // handling might happen. |
| virtual void ItemSelected(const ui::Event& event) = 0; |
| |
| // Returns the title to display. |
| virtual base::string16 GetTitle() = 0; |
| |
| // Returns the context menumodel for the specified item on |
| // |root_window|. Return NULL if there should be no context |
| // menu. The caller takes ownership of the returned model. |
| virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) = 0; |
| |
| // Returns the application menu model for the specified item. There are three |
| // possible return values: |
| // - A return of NULL indicates that no menu is wanted for this item. |
| // - A return of a menu with one item means that only the name of the |
| // application/item was added and there are no active applications. |
| // Note: This is useful for hover menus which also show context help. |
| // - A list containing the title and the active list of items. |
| // The caller takes ownership of the returned model. |
| // |event_flags| specifies the flags of the event which triggered this menu. |
| virtual ash::LauncherMenuModel* CreateApplicationMenu(int event_flags) = 0; |
| |
| // Whether the launcher item is draggable. |
| virtual bool IsDraggable() = 0; |
| |
| // Returns true if a tooltip should be shown. |
| virtual bool ShouldShowTooltip() = 0; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_ |