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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_STATUS_ICONS_CONCAT_MENU_MODEL_H_
#define CHROME_BROWSER_UI_VIEWS_STATUS_ICONS_CONCAT_MENU_MODEL_H_
#include <utility>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "ui/base/models/image_model.h"
#include "ui/base/models/menu_model.h"
// Combines two menu models (without using submenus).
class ConcatMenuModel final : public ui::MenuModel {
public:
ConcatMenuModel(ui::MenuModel* m1, ui::MenuModel* m2);
ConcatMenuModel(const ConcatMenuModel&) = delete;
ConcatMenuModel& operator=(const ConcatMenuModel&) = delete;
~ConcatMenuModel() override;
// ui::MenuModel:
base::WeakPtr<ui::MenuModel> AsWeakPtr() override;
size_t GetItemCount() const override;
ItemType GetTypeAt(size_t index) const override;
ui::MenuSeparatorType GetSeparatorTypeAt(size_t index) const override;
int GetCommandIdAt(size_t index) const override;
std::u16string GetLabelAt(size_t index) const override;
std::u16string GetMinorTextAt(size_t index) const override;
ui::ImageModel GetMinorIconAt(size_t index) const override;
bool IsItemDynamicAt(size_t index) const override;
bool GetAcceleratorAt(size_t index,
ui::Accelerator* accelerator) const override;
bool IsItemCheckedAt(size_t index) const override;
int GetGroupIdAt(size_t index) const override;
ui::ImageModel GetIconAt(size_t index) const override;
ui::ButtonMenuItemModel* GetButtonMenuItemAt(size_t index) const override;
bool IsEnabledAt(size_t index) const override;
bool IsVisibleAt(size_t index) const override;
void ActivatedAt(size_t index) override;
void ActivatedAt(size_t index, int event_flags) override;
MenuModel* GetSubmenuModelAt(size_t index) const override;
void MenuWillShow() override;
void MenuWillClose() override;
private:
template <typename F, typename... Ts>
auto GetterImpl(F&& f, size_t index, Ts&&... args) const {
return (GetMenuAndIndex(&index)->*f)(index, args...);
}
// Returns either |m1_| or |m2_| for the input |index|. |index| will be
// adjusted for the returned menu.
ui::MenuModel* GetMenuAndIndex(size_t* index) const;
const raw_ptr<ui::MenuModel, DanglingUntriaged> m1_;
const raw_ptr<ui::MenuModel, DanglingUntriaged> m2_;
base::WeakPtrFactory<ConcatMenuModel> weak_ptr_factory_{this};
};
#endif // CHROME_BROWSER_UI_VIEWS_STATUS_ICONS_CONCAT_MENU_MODEL_H_
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