ladybird/Libraries/LibGUI/GMenu.cpp
Andreas Kling fd5eb79d19 LibGUI: Make GMenu inherit from CObject
This is primarily to make it possible to pass a GMenu* where a CObject*
is expected.
2019-12-09 21:05:44 +01:00

132 lines
4.1 KiB
C++

#include <AK/HashMap.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GMenu.h>
#include <LibGUI/GWindowServerConnection.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(NonnullRefPtr<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();
GWindowServerConnection::the().post_message(WindowServer::PopupMenu(m_menu_id, screen_position));
}
void GMenu::dismiss()
{
if (m_menu_id == -1)
return;
GWindowServerConnection::the().post_message(WindowServer::DismissMenu(m_menu_id));
}
int GMenu::realize_menu()
{
m_menu_id = GWindowServerConnection::the().send_sync<WindowServer::CreateMenu>(m_name)->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) {
GWindowServerConnection::the().send_sync<WindowServer::AddMenuSeparator>(m_menu_id);
continue;
}
if (item.type() == GMenuItem::Submenu) {
auto& submenu = *item.submenu();
submenu.realize_if_needed();
GWindowServerConnection::the().send_sync<WindowServer::AddMenuItem>(m_menu_id, i, submenu.menu_id(), submenu.name(), true, false, false, "", -1);
continue;
}
if (item.type() == GMenuItem::Action) {
auto& action = *item.action();
int icon_buffer_id = -1;
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);
}
icon_buffer_id = action.icon()->shared_buffer_id();
}
auto shortcut_text = action.shortcut().is_valid() ? action.shortcut().to_string() : String();
GWindowServerConnection::the().send_sync<WindowServer::AddMenuItem>(m_menu_id, i, -1, action.text(), action.is_enabled(), action.is_checkable(), action.is_checkable() ? action.is_checked() : false, shortcut_text, icon_buffer_id);
}
}
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);
GWindowServerConnection::the().send_sync<WindowServer::DestroyMenu>(m_menu_id);
m_menu_id = 0;
}
GAction* GMenu::action_at(int index)
{
if (index >= m_items.size())
return nullptr;
return m_items[index].action();
}