xenia-canary/src/xenia/ui/menu_item.h

89 lines
2.7 KiB
C++

/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2022 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#ifndef XENIA_UI_MENU_ITEM_H_
#define XENIA_UI_MENU_ITEM_H_
#include <functional>
#include <memory>
#include <string>
#include <vector>
#include "xenia/ui/ui_event.h"
namespace xe {
namespace ui {
class Window;
class MenuItem {
public:
typedef std::unique_ptr<MenuItem, void (*)(MenuItem*)> MenuItemPtr;
enum class Type {
kPopup, // Popup menu (submenu)
kSeparator,
kNormal, // Root menu
kString, // Menu is just a string
};
static std::unique_ptr<MenuItem> Create(Type type);
static std::unique_ptr<MenuItem> Create(Type type, const std::string& text);
static std::unique_ptr<MenuItem> Create(Type type, const std::string& text,
std::function<void()> callback);
static std::unique_ptr<MenuItem> Create(Type type, const std::string& text,
const std::string& hotkey,
std::function<void()> callback);
virtual ~MenuItem();
MenuItem* parent_item() const { return parent_item_; }
Type type() { return type_; }
const std::string& text() { return text_; }
const std::string& hotkey() { return hotkey_; }
// If the menu is currently attached to a Window, changes to it (such as the
// elements and the enabled / disabled state) may be not reflected
// immediately - call Window::CompleteMainMenuItemsUpdate when the
// modifications are done.
void AddChild(MenuItem* child_item);
void AddChild(std::unique_ptr<MenuItem> child_item);
void AddChild(MenuItemPtr child_item);
void RemoveChild(MenuItem* child_item);
MenuItem* child(size_t index);
virtual void SetEnabled(bool enabled) {}
protected:
MenuItem(Type type, const std::string& text, const std::string& hotkey,
std::function<void()> callback);
virtual void OnChildAdded(MenuItem* child_item) {}
virtual void OnChildRemoved(MenuItem* child_item) {}
// This MenuItem may be destroyed as a result of the callback, don't do
// anything with it after the call.
void OnSelected();
Type type_;
MenuItem* parent_item_;
std::vector<MenuItemPtr> children_;
std::string text_;
std::string hotkey_;
private:
std::function<void()> callback_;
};
} // namespace ui
} // namespace xe
#endif // XENIA_UI_MENU_ITEM_H_