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- /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <AK/Debug.h>
- #include <AK/HashMap.h>
- #include <LibGUI/Action.h>
- #include <LibGUI/ActionGroup.h>
- #include <LibGUI/Menu.h>
- #include <LibGUI/MenuItem.h>
- #include <LibGUI/WindowServerConnection.h>
- #include <LibGfx/Bitmap.h>
- namespace GUI {
- static HashMap<int, Menu*>& all_menus()
- {
- static HashMap<int, Menu*>* map;
- if (!map)
- map = new HashMap<int, Menu*>();
- return *map;
- }
- Menu* Menu::from_menu_id(int menu_id)
- {
- auto it = all_menus().find(menu_id);
- if (it == all_menus().end())
- return nullptr;
- return (*it).value;
- }
- Menu::Menu(String name)
- : m_name(move(name))
- {
- }
- Menu::~Menu()
- {
- unrealize_menu();
- }
- void Menu::set_icon(const Gfx::Bitmap* icon)
- {
- m_icon = icon;
- }
- void Menu::add_action(NonnullRefPtr<Action> action)
- {
- m_items.append(make<MenuItem>(m_menu_id, move(action)));
- }
- Menu& Menu::add_submenu(const String& name)
- {
- auto submenu = Menu::construct(name);
- m_items.append(make<MenuItem>(m_menu_id, submenu));
- return submenu;
- }
- void Menu::add_separator()
- {
- m_items.append(make<MenuItem>(m_menu_id, MenuItem::Type::Separator));
- }
- void Menu::realize_if_needed(const RefPtr<Action>& default_action)
- {
- if (m_menu_id == -1 || m_last_default_action.ptr() != default_action)
- realize_menu(default_action);
- }
- void Menu::popup(const Gfx::IntPoint& screen_position, const RefPtr<Action>& default_action)
- {
- realize_if_needed(default_action);
- WindowServerConnection::the().post_message(Messages::WindowServer::PopupMenu(m_menu_id, screen_position));
- }
- void Menu::dismiss()
- {
- if (m_menu_id == -1)
- return;
- WindowServerConnection::the().post_message(Messages::WindowServer::DismissMenu(m_menu_id));
- }
- int Menu::realize_menu(RefPtr<Action> default_action)
- {
- unrealize_menu();
- m_menu_id = WindowServerConnection::the().send_sync<Messages::WindowServer::CreateMenu>(m_name)->menu_id();
- dbgln_if(MENU_DEBUG, "GUI::Menu::realize_menu(): New menu ID: {}", m_menu_id);
- VERIFY(m_menu_id > 0);
- for (size_t i = 0; i < m_items.size(); ++i) {
- auto& item = m_items[i];
- item.set_menu_id({}, m_menu_id);
- item.set_identifier({}, i);
- if (item.type() == MenuItem::Type::Separator) {
- WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuSeparator>(m_menu_id);
- continue;
- }
- if (item.type() == MenuItem::Type::Submenu) {
- auto& submenu = *item.submenu();
- submenu.realize_if_needed(default_action);
- auto icon = submenu.icon() ? submenu.icon()->to_shareable_bitmap() : Gfx::ShareableBitmap();
- WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuItem>(m_menu_id, i, submenu.menu_id(), submenu.name(), true, false, false, false, "", icon, false);
- continue;
- }
- if (item.type() == MenuItem::Type::Action) {
- auto& action = *item.action();
- auto shortcut_text = action.shortcut().is_valid() ? action.shortcut().to_string() : String();
- bool exclusive = action.group() && action.group()->is_exclusive() && action.is_checkable();
- bool is_default = (default_action.ptr() == &action);
- auto icon = action.icon() ? action.icon()->to_shareable_bitmap() : Gfx::ShareableBitmap();
- WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuItem>(m_menu_id, i, -1, action.text(), action.is_enabled(), action.is_checkable(), action.is_checkable() ? action.is_checked() : false, is_default, shortcut_text, icon, exclusive);
- }
- }
- all_menus().set(m_menu_id, this);
- m_last_default_action = default_action;
- return m_menu_id;
- }
- void Menu::unrealize_menu()
- {
- if (m_menu_id == -1)
- return;
- all_menus().remove(m_menu_id);
- WindowServerConnection::the().send_sync<Messages::WindowServer::DestroyMenu>(m_menu_id);
- m_menu_id = -1;
- }
- void Menu::realize_menu_if_needed()
- {
- if (menu_id() == -1)
- realize_menu();
- }
- Action* Menu::action_at(size_t index)
- {
- if (index >= m_items.size())
- return nullptr;
- return m_items[index].action();
- }
- void Menu::visibility_did_change(Badge<WindowServerConnection>, bool visible)
- {
- if (m_visible == visible)
- return;
- m_visible = visible;
- if (on_visibility_change)
- on_visibility_change(visible);
- }
- }
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