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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/NonnullOwnPtrVector.h>
#include <AK/String.h>
#include <AK/WeakPtr.h>
#include <LibCore/Object.h>
#include <LibGfx/Font.h>
#include <LibGfx/FontDatabase.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
#include <WindowServer/Cursor.h>
#include <WindowServer/MenuItem.h>
#include <WindowServer/Window.h>
namespace WindowServer {
class ClientConnection;
class MenuBar;
class Event;
class Menu final : public Core::Object {
C_OBJECT(Menu)
public:
Menu(ClientConnection*, int menu_id, const String& name);
virtual ~Menu() override;
ClientConnection* client() { return m_client; }
const ClientConnection* client() const { return m_client; }
int menu_id() const { return m_menu_id; }
bool is_empty() const { return m_items.is_empty(); }
int item_count() const { return m_items.size(); }
const MenuItem& item(int index) const { return m_items.at(index); }
MenuItem& item(int index) { return m_items.at(index); }
void add_item(NonnullOwnPtr<MenuItem>&& item) { m_items.append(move(item)); }
String name() const { return m_name; }
template<typename Callback>
void for_each_item(Callback callback) const
{
for (auto& item : m_items)
callback(item);
}
Gfx::IntRect rect_in_window_menubar() const { return m_rect_in_window_menubar; }
void set_rect_in_window_menubar(const Gfx::IntRect& rect) { m_rect_in_window_menubar = rect; }
Window* menu_window() { return m_menu_window.ptr(); }
Window& ensure_menu_window();
Window* window_menu_of() { return m_window_menu_of; }
void set_window_menu_of(Window& window) { m_window_menu_of = window; }
bool is_window_menu_open() { return m_is_window_menu_open; }
void set_window_menu_open(bool is_open) { m_is_window_menu_open = is_open; }
bool activate_default();
int content_width() const;
int item_height() const { return 22; }
int frame_thickness() const { return 2; }
int horizontal_padding() const { return left_padding() + right_padding(); }
int left_padding() const { return 14; }
int right_padding() const { return 14; }
void draw();
const Gfx::Font& font() const;
MenuItem* item_with_identifier(unsigned);
void redraw();
MenuItem* hovered_item() const;
void set_hovered_item(int index)
{
m_hovered_item_index = index;
update_for_new_hovered_item();
}
void clear_hovered_item();
Function<void(MenuItem&)> on_item_activation;
void close();
void set_visible(bool);
void popup(const Gfx::IntPoint&);
void do_popup(const Gfx::IntPoint&, bool make_input, bool as_submenu = false);
bool is_menu_ancestor_of(const Menu&) const;
void redraw_if_theme_changed();
bool is_scrollable() const { return m_scrollable; }
int scroll_offset() const { return m_scroll_offset; }
void descend_into_submenu_at_hovered_item();
void open_hovered_item(bool leave_menu_open);
private:
virtual void event(Core::Event&) override;
void handle_mouse_move_event(const MouseEvent&);
int visible_item_count() const;
int item_index_at(const Gfx::IntPoint&);
int padding_between_text_and_shortcut() const { return 50; }
void did_activate(MenuItem&, bool leave_menu_open);
void update_for_new_hovered_item(bool make_input = false);
void start_activation_animation(MenuItem&);
ClientConnection* m_client { nullptr };
int m_menu_id { 0 };
String m_name;
Gfx::IntRect m_rect_in_window_menubar;
NonnullOwnPtrVector<MenuItem> m_items;
RefPtr<Window> m_menu_window;
WeakPtr<Window> m_window_menu_of;
bool m_is_window_menu_open = { false };
Gfx::IntPoint m_last_position_in_hover;
int m_theme_index_at_last_paint { -1 };
int m_hovered_item_index { -1 };
bool m_scrollable { false };
int m_scroll_offset { 0 };
int m_max_scroll_offset { 0 };
};
}
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