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LibGUI, WindowServer: Greatly simplify menubar logic

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Currently, any number of menubars can be plugged in and out of a window.
This is unnecessary complexity, since we only need one menubar on a
window. This commit removes most of the logic for dynamically attaching
and detaching menubars and makes one menubar always available. The
menubar is only considered existent if it has at least a single menu in
it (in other words, an empty menubar will not be shown).

This commit additionally fixes a bug wherein menus added after a menubar
has been attached would not have their rects properly setup, and would
therefore appear glitched out on the top left corner of the menubar.
This commit is contained in:
sin-ack 2021-07-29 10:14:12 +00:00 • committed by Andreas Kling
parent 95ab61e3db
commit 611370e7dc
19 changed files with 150 additions and 255 deletions
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66
Userland/Libraries/LibGUI/Menubar.cpp
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@ -1,66 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Badge.h>
#include <AK/IDAllocator.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuItem.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/WindowServerConnection.h>
namespace GUI {
static IDAllocator s_menubar_id_allocator;
Menubar::Menubar()
{
}
Menubar::~Menubar()
{
unrealize_menubar();
}
Menu& Menubar::add_menu(String name)
{
auto& menu = add<Menu>(move(name));
m_menus.append(menu);
return menu;
}
int Menubar::realize_menubar()
{
auto menubar_id = s_menubar_id_allocator.allocate();
WindowServerConnection::the().async_create_menubar(menubar_id);
return menubar_id;
}
void Menubar::unrealize_menubar()
{
if (m_menubar_id == -1)
return;
WindowServerConnection::the().async_destroy_menubar(m_menubar_id);
m_menubar_id = -1;
}
void Menubar::notify_added_to_window(Badge<Window>)
{
VERIFY(m_menubar_id == -1);
m_menubar_id = realize_menubar();
VERIFY(m_menubar_id != -1);
for (auto& menu : m_menus) {
int menu_id = menu.realize_menu();
VERIFY(menu_id != -1);
WindowServerConnection::the().async_add_menu_to_menubar(m_menubar_id, menu_id);
}
}
void Menubar::notify_removed_from_window(Badge<Window>)
{
unrealize_menubar();
}
}