ladybird/LibGUI/GMenuItem.cpp
Andreas Kling 054c982181 LibGUI+WindowServer: Add support for enabled/disabled actions.
The enabled state of a GAction now propagates both to any toolbar buttons
and any menu items linked to the action. Toolbar buttons are painted in
a grayed out style when disabled. Menu items are gray when disabled. :^)
2019-04-12 02:53:27 +02:00

58 lines
1.6 KiB
C++

#include <LibGUI/GMenuItem.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GEventLoop.h>
#include <WindowServer/WSAPITypes.h>
GMenuItem::GMenuItem(unsigned menu_id, Type type)
: m_type(type)
, m_menu_id(menu_id)
{
}
GMenuItem::GMenuItem(unsigned menu_id, Retained<GAction>&& action)
: m_type(Action)
, m_menu_id(menu_id)
, m_action(move(action))
{
m_action->register_menu_item({ }, *this);
m_enabled = m_action->is_enabled();
}
GMenuItem::~GMenuItem()
{
if (m_action)
m_action->unregister_menu_item({ }, *this);
}
void GMenuItem::set_enabled(bool enabled)
{
if (m_enabled == enabled)
return;
m_enabled = enabled;
update_window_server();
}
void GMenuItem::update_window_server()
{
auto& action = *m_action;
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::UpdateMenuItem;
request.menu.menu_id = m_menu_id;
request.menu.identifier = m_identifier;
request.menu.enabled = action.is_enabled();
ASSERT(action.text().length() < (ssize_t)sizeof(request.text));
strcpy(request.text, action.text().characters());
request.text_length = action.text().length();
if (action.shortcut().is_valid()) {
auto shortcut_text = action.shortcut().to_string();
ASSERT(shortcut_text.length() < (ssize_t)sizeof(request.menu.shortcut_text));
strcpy(request.menu.shortcut_text, shortcut_text.characters());
request.menu.shortcut_text_length = shortcut_text.length();
} else {
request.menu.shortcut_text_length = 0;
}
GEventLoop::current().sync_request(request, WSAPI_ServerMessage::Type::DidUpdateMenuItem);
}