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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#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/Event.h>
#include <WindowServer/MenuItem.h>
namespace WindowServer {
class ClientConnection;
class Menubar;
class Window;
class Menu final : public Core::Object {
C_OBJECT(Menu);
public:
Menu(ClientConnection*, int menu_id, 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_open() const;
u32 alt_shortcut_character() const { return m_alt_shortcut_character; }
bool is_empty() const { return m_items.is_empty(); }
size_t item_count() const { return m_items.size(); }
const MenuItem& item(size_t index) const { return m_items.at(index); }
MenuItem& item(size_t index) { return m_items.at(index); }
MenuItem* item_by_identifier(unsigned identifier)
{
MenuItem* found_item = nullptr;
for_each_item([&](auto& item) {
if (item.identifier() == identifier) {
found_item = &item;
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
return found_item;
}
void add_item(NonnullOwnPtr<MenuItem>);
String const& name() const { return m_name; }
template<typename Callback>
IterationDecision for_each_item(Callback callback)
{
for (auto& item : m_items) {
IterationDecision decision = callback(item);
if (decision != IterationDecision::Continue)
return decision;
}
return IterationDecision::Continue;
}
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(Gfx::IntPoint const&);
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() const { 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;
static constexpr int item_height() { return 22; }
static constexpr int frame_thickness() { return 2; }
static constexpr int horizontal_padding() { return left_padding() + right_padding(); }
static constexpr int left_padding() { return 14; }
static constexpr int right_padding() { return 14; }
void draw();
void draw(MenuItem const&, bool = false);
const Gfx::Font& font() const;
MenuItem* item_with_identifier(unsigned);
void redraw();
void redraw(MenuItem const&);
MenuItem* hovered_item() const;
void set_hovered_index(int index, bool make_input = false);
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);
const Vector<size_t>* items_with_alt_shortcut(u32 alt_shortcut) const;
private:
virtual void event(Core::Event&) override;
void handle_mouse_move_event(const MouseEvent&);
size_t visible_item_count() const;
Gfx::IntRect stripe_rect();
int item_index_at(const Gfx::IntPoint&);
static constexpr int padding_between_text_and_shortcut() { 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;
u32 m_alt_shortcut_character { 0 };
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 };
HashMap<u32, Vector<size_t>> m_alt_shortcut_character_to_item_indices;
};
u32 find_ampersand_shortcut_character(const StringView&);
}
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