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LibGUI: Add GUI::Menu::try_add_submenu()

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This is a fallible variant of add_submenu() that returns ErrorOr.
This commit is contained in:
Andreas Kling 2021-11-24 22:23:26 +01:00
parent 1682cd10be
commit a18631c5e7
2 changed files with 15 additions and 5 deletions
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17
Userland/Libraries/LibGUI/Menu.cpp
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@ -66,18 +66,27 @@ void Menu::add_action(NonnullRefPtr<Action> action)
MUST(try_add_action(move(action)));
}
Menu& Menu::add_submenu(const String& name)
ErrorOr<NonnullRefPtr<Menu>> Menu::try_add_submenu(String name)
{
auto submenu = Menu::construct(name);
// NOTE: We grow the vector first, to get allocation failure handled immediately.
TRY(m_items.try_ensure_capacity(m_items.size() + 1));
auto item = make<MenuItem>(m_menu_id, submenu);
auto submenu = TRY(Menu::try_create(name));
auto item = TRY(adopt_nonnull_own_or_enomem(new (nothrow) MenuItem(m_menu_id, submenu)));
if (m_menu_id != -1)
realize_menu_item(*item, m_items.size());
m_items.append(move(item));
m_items.unchecked_append(move(item));
return submenu;
}
Menu& Menu::add_submenu(String name)
{
auto menu = MUST(try_add_submenu(move(name)));
return menu;
}
ErrorOr<void> Menu::try_add_separator()
{
// NOTE: We grow the vector first, to get allocation failure handled immediately.