// Copyright (c) 2011 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 CEF_LIBCEF_BROWSER_NATIVE_MENU_2_H_ #define CEF_LIBCEF_BROWSER_NATIVE_MENU_2_H_ #include #include "libcef/browser/native/menu_wrapper.h" #include "ui/gfx/native_widget_types.h" namespace gfx { class Point; } namespace ui { class MenuModel; } namespace views { // A menu. Populated from a model, and relies on a delegate to execute commands. // // WARNING: do NOT create and use Menu2 on the stack. Menu2 notifies the model // of selection AFTER a delay. This means that if use a Menu2 on the stack // ActivatedAt is never invoked. class Menu2 { public: // How the menu is aligned relative to the point it is shown at. // The alignment is reversed by menu if text direction is right to left. enum Alignment { ALIGN_TOPLEFT, ALIGN_TOPRIGHT }; // Creates a new menu populated with the contents of |model|. // WARNING: this populates the menu on construction by invoking methods on // the model. As such, it is typically not safe to use this as the model // from the constructor. EG: // MyClass : menu_(this) {} // is likely to have problems. explicit Menu2(ui::MenuModel* model); Menu2(const Menu2&) = delete; Menu2& operator=(const Menu2&) = delete; virtual ~Menu2(); // Runs the menu at the specified point. This method blocks until done. // RunContextMenuAt is the same, but the alignment is the default for a // context menu. void RunMenuAt(const gfx::Point& point, Alignment alignment); void RunContextMenuAt(const gfx::Point& point); // Cancels the active menu. void CancelMenu(); // Called when the model supplying data to this menu has changed, and the menu // must be rebuilt. void Rebuild(); // Called when the states of the menu items in the menu should be refreshed // from the model. void UpdateStates(); // For submenus. HMENU GetNativeMenu() const; // Get the result of the last call to RunMenuAt to determine whether an // item was selected, the user navigated to a next or previous menu, or // nothing. MenuWrapper::MenuAction GetMenuAction() const; // Accessors. ui::MenuModel* model() const { return model_; } // Sets the minimum width of the menu. void SetMinimumWidth(int width); private: ui::MenuModel* model_; // The object that actually implements the menu. std::unique_ptr wrapper_; }; } // namespace views #endif // CEF_LIBCEF_BROWSER_NATIVE_MENU_2_H_