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49f5767789
This patch adds a visibility state to GUI::Action. All actions default to being visible. When invisible, they do not show up in toolbars on menus (and importantly, they don't occupy any space). This can be used to hide/show context-sensitive actions dynamically without rebuilding menus and toolbars. Thanks to Tim Slater for assuming that action visibility was a thing, which gave me a reason to implement it! :^)
99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGUI/Action.h>
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#include <LibGUI/ConnectionToWindowServer.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/MenuItem.h>
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namespace GUI {
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MenuItem::MenuItem(unsigned menu_id, Type type)
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: m_type(type)
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, m_menu_id(menu_id)
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{
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}
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MenuItem::MenuItem(unsigned menu_id, NonnullRefPtr<Action> action)
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: m_type(Type::Action)
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, m_menu_id(menu_id)
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, m_action(move(action))
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{
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m_action->register_menu_item({}, *this);
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m_enabled = m_action->is_enabled();
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m_checkable = m_action->is_checkable();
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if (m_checkable)
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m_checked = m_action->is_checked();
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}
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MenuItem::MenuItem(unsigned menu_id, NonnullRefPtr<Menu> submenu)
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: m_type(Type::Submenu)
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, m_menu_id(menu_id)
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, m_submenu(move(submenu))
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{
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}
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MenuItem::~MenuItem()
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{
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if (m_action)
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m_action->unregister_menu_item({}, *this);
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}
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void MenuItem::set_enabled(bool enabled)
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{
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if (m_enabled == enabled)
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return;
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m_enabled = enabled;
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update_window_server();
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}
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void MenuItem::set_visible(bool visible)
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{
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if (m_visible == visible)
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return;
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m_visible = visible;
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update_window_server();
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}
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void MenuItem::set_checked(bool checked)
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{
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VERIFY(is_checkable());
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if (m_checked == checked)
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return;
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m_checked = checked;
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update_window_server();
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}
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void MenuItem::set_default(bool is_default)
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{
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VERIFY(is_checkable());
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if (m_default == is_default)
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return;
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m_default = is_default;
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update_window_server();
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}
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void MenuItem::update_window_server()
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{
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if (m_menu_id < 0)
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return;
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auto& action = *m_action;
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auto shortcut_text = action.shortcut().is_valid() ? action.shortcut().to_deprecated_string() : DeprecatedString();
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auto icon = action.icon() ? action.icon()->to_shareable_bitmap() : Gfx::ShareableBitmap();
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ConnectionToWindowServer::the().async_update_menu_item(m_menu_id, m_identifier, -1, action.text(), action.is_enabled(), action.is_visible(), action.is_checkable(), action.is_checkable() ? action.is_checked() : false, m_default, shortcut_text, icon);
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}
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void MenuItem::set_menu_id(Badge<Menu>, unsigned int menu_id)
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{
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m_menu_id = menu_id;
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}
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void MenuItem::set_identifier(Badge<Menu>, unsigned identifier)
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{
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m_identifier = identifier;
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}
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}
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