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WindowServer: Allow windows to be pinnable (always on top)

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This patch adds the concept of a window being "Pinnable" (always drawn
on top of other windows). This can be toggled through a new checkable
action in the top left corner's window menu.
This commit is contained in:
Andres Crucitti 2021-07-06 00:15:26 -07:00 • committed by Andreas Kling
parent d5722eab36
commit f6f14777ac
7 changed files with 87 additions and 0 deletions
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34
Userland/Services/WindowServer/WindowStack.cpp
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@ -24,6 +24,8 @@ void WindowStack::add(Window& window)
VERIFY(!window.is_on_any_window_stack({}));
m_windows.append(window);
window.set_window_stack({}, this);
move_pinned_windows_to_front();
}
void WindowStack::add_to_back(Window& window)
@ -50,13 +52,45 @@ void WindowStack::move_to_front(Window& window)
{
if (m_windows.last() != &window)
window.invalidate();
m_windows.remove(window);
m_windows.append(window);
move_pinned_windows_to_front();
if (window.is_pinned()) {
m_windows.remove(window);
m_windows.append(window);
window.invalidate();
}
}
void WindowStack::move_pinned_windows_to_front()
{
Window::List pinned_list;
for (auto iterator = m_windows.begin(); iterator != m_windows.end(); ++iterator) {
auto& window = *iterator;
if (window.is_pinned()) {
m_windows.remove(window);
pinned_list.append(window);
iterator = m_windows.begin();
}
}
while (!pinned_list.is_empty()) {
auto& window = *pinned_list.begin();
pinned_list.remove(window);
m_windows.append(window);
window.invalidate();
}
}
void WindowStack::move_all_windows(WindowStack& new_window_stack, Vector<Window*, 32>& windows_moved, MoveAllWindowsTo move_to)
{
VERIFY(this != &new_window_stack);
move_pinned_windows_to_front();
if (move_to == MoveAllWindowsTo::Front) {
while (auto* window = m_windows.take_first()) {
window->set_window_stack({}, nullptr);