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LibGUI: Add fallible variants of the GUI::Layout add/insert APIs

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This commit is contained in:
Andreas Kling 2021-11-28 08:24:37 +01:00
parent acd4cc97fc
commit 56c4f0aff5
2 changed files with 43 additions and 16 deletions
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50
Userland/Libraries/LibGUI/Layout.cpp
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@ -54,18 +54,28 @@ void Layout::notify_disowned(Badge<Widget>, Widget& widget)
m_owner.clear();
}
void Layout::add_entry(Entry&& entry)
ErrorOr<void> Layout::try_add_entry(Entry&& entry)
{
m_entries.append(move(entry));
TRY(m_entries.try_append(move(entry)));
if (m_owner)
m_owner->notify_layout_changed({});
return {};
}
void Layout::add_entry(Entry&& entry)
{
MUST(try_add_entry(move(entry)));
}
ErrorOr<void> Layout::try_add_spacer()
{
TRY(try_add_entry(Entry { .type = Entry::Type::Spacer }));
return {};
}
void Layout::add_spacer()
{
Entry entry;
entry.type = Entry::Type::Spacer;
add_entry(move(entry));
MUST(try_add_spacer());
}
void Layout::add_layout(OwnPtr<Layout>&& layout)
@ -76,24 +86,36 @@ void Layout::add_layout(OwnPtr<Layout>&& layout)
add_entry(move(entry));
}
ErrorOr<void> Layout::try_add_widget(Widget& widget)
{
TRY(try_add_entry(Entry {
.type = Entry::Type::Widget,
.widget = widget,
}));
return {};
}
void Layout::add_widget(Widget& widget)
{
MUST(try_add_widget(widget));
}
ErrorOr<void> Layout::try_insert_widget_before(Widget& widget, Widget& before_widget)
{
Entry entry;
entry.type = Entry::Type::Widget;
entry.widget = widget;
add_entry(move(entry));
TRY(m_entries.try_insert_before_matching(move(entry), [&](auto& existing_entry) {
return existing_entry.type == Entry::Type::Widget && existing_entry.widget.ptr() == &before_widget;
}));
if (m_owner)
m_owner->notify_layout_changed({});
return {};
}
void Layout::insert_widget_before(Widget& widget, Widget& before_widget)
{
Entry entry;
entry.type = Entry::Type::Widget;
entry.widget = widget;
m_entries.insert_before_matching(move(entry), [&](auto& existing_entry) {
return existing_entry.type == Entry::Type::Widget && existing_entry.widget.ptr() == &before_widget;
});
if (m_owner)
m_owner->notify_layout_changed({});
MUST(try_insert_widget_before(widget, before_widget));
}
void Layout::remove_widget(Widget& widget)