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#include <AK/HashMap.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GEventLoop.h>
#include <LibGUI/GMenu.h>
//#define GMENU_DEBUG
static HashMap<int, GMenu*>& all_menus()
{
static HashMap<int, GMenu*>* map;
if (!map)
map = new HashMap<int, GMenu*>();
return *map;
}
GMenu* GMenu::from_menu_id(int menu_id)
{
auto it = all_menus().find(menu_id);
if (it == all_menus().end())
return nullptr;
return (*it).value;
}
GMenu::GMenu(const StringView& name)
: m_name(name)
{
}
GMenu::~GMenu()
{
unrealize_menu();
}
void GMenu::add_action(NonnullRefPtr<GAction> action)
{
m_items.append(make<GMenuItem>(m_menu_id, move(action)));
#ifdef GMENU_DEBUG
dbgprintf("GMenu::add_action(): MenuItem Menu ID: %d\n", m_menu_id);
#endif
}
void GMenu::add_submenu(NonnullOwnPtr<GMenu> submenu)
{
m_items.append(make<GMenuItem>(m_menu_id, move(submenu)));
}
void GMenu::add_separator()
{
m_items.append(make<GMenuItem>(m_menu_id, GMenuItem::Separator));
}
void GMenu::realize_if_needed()
{
if (m_menu_id == -1)
realize_menu();
}
void GMenu::popup(const Point& screen_position)
{
realize_if_needed();
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::PopupMenu;
request.menu.menu_id = m_menu_id;
request.menu.position = screen_position;
GWindowServerConnection::the().post_message_to_server(request);
}
void GMenu::dismiss()
{
if (m_menu_id == -1)
return;
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::DismissMenu;
request.menu.menu_id = m_menu_id;
GWindowServerConnection::the().post_message_to_server(request);
}
int GMenu::realize_menu()
{
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::CreateMenu;
ASSERT(m_name.length() < (ssize_t)sizeof(request.text));
strcpy(request.text, m_name.characters());
request.text_length = m_name.length();
auto response = GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidCreateMenu);
m_menu_id = response.menu.menu_id;
#ifdef GMENU_DEBUG
dbgprintf("GMenu::realize_menu(): New menu ID: %d\n", m_menu_id);
#endif
ASSERT(m_menu_id > 0);
for (int 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() == GMenuItem::Separator) {
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::AddMenuSeparator;
request.menu.menu_id = m_menu_id;
request.menu.submenu_id = -1;
GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidAddMenuSeparator);
continue;
}
if (item.type() == GMenuItem::Submenu) {
auto& submenu = *item.submenu();
submenu.realize_if_needed();
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::AddMenuItem;
request.menu.menu_id = m_menu_id;
request.menu.submenu_id = submenu.menu_id();
request.menu.identifier = i;
// FIXME: It should be possible to disable a submenu.
request.menu.enabled = true;
request.menu.checkable = false;
request.menu.checked = false;
ASSERT(submenu.name().length() < (ssize_t)sizeof(request.text));
strcpy(request.text, submenu.name().characters());
request.text_length = submenu.name().length();
GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidAddMenuItem);
continue;
}
if (item.type() == GMenuItem::Action) {
auto& action = *item.action();
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::AddMenuItem;
request.menu.menu_id = m_menu_id;
request.menu.submenu_id = -1;
request.menu.identifier = i;
request.menu.enabled = action.is_enabled();
request.menu.checkable = action.is_checkable();
if (action.icon()) {
ASSERT(action.icon()->format() == GraphicsBitmap::Format::RGBA32);
ASSERT(action.icon()->size() == Size(16, 16));
if (action.icon()->shared_buffer_id() == -1) {
auto shared_buffer = SharedBuffer::create_with_size(action.icon()->size_in_bytes());
ASSERT(shared_buffer);
auto shared_icon = GraphicsBitmap::create_with_shared_buffer(GraphicsBitmap::Format::RGBA32, *shared_buffer, action.icon()->size());
memcpy(shared_buffer->data(), action.icon()->bits(0), action.icon()->size_in_bytes());
shared_buffer->seal();
shared_buffer->share_with(GWindowServerConnection::the().server_pid());
action.set_icon(shared_icon);
}
request.menu.icon_buffer_id = action.icon()->shared_buffer_id();
} else {
request.menu.icon_buffer_id = -1;
}
if (action.is_checkable())
request.menu.checked = action.is_checked();
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;
}
GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidAddMenuItem);
}
}
all_menus().set(m_menu_id, this);
return m_menu_id;
}
void GMenu::unrealize_menu()
{
if (m_menu_id == -1)
return;
all_menus().remove(m_menu_id);
WSAPI_ClientMessage request;
request.type = WSAPI_ClientMessage::Type::DestroyMenu;
request.menu.menu_id = m_menu_id;
GWindowServerConnection::the().sync_request(request, WSAPI_ServerMessage::Type::DidDestroyMenu);
m_menu_id = 0;
}
GAction* GMenu::action_at(int index)
{
if (index >= m_items.size())
return nullptr;
return m_items[index].action();
}
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