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WindowServer: Add WindowStack::window_at() and use it a bunch

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This performs a hit test on the window stack to find the window under
a given cursor position.
This commit is contained in:
Andreas Kling 2021-06-18 01:03:15 +02:00
parent 4133caba78
commit f88361fc28
3 changed files with 27 additions and 21 deletions
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20
Userland/Services/WindowServer/WindowStack.cpp
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@ -38,6 +38,14 @@ void WindowStack::move_to_front(Window& window)
m_windows.append(window);
}
Window* WindowStack::window_at(Gfx::IntPoint const& position) const
{
auto result = hit_test(position);
if (!result.has_value())
return nullptr;
return result->window;
}
void WindowStack::set_highlight_window(Window* window)
{
if (!window)
@ -54,4 +62,16 @@ void WindowStack::set_active_window(Window* window)
m_active_window = window->make_weak_ptr<Window>();
}
Optional<HitTestResult> WindowStack::hit_test(Gfx::IntPoint const& position) const
{
Optional<HitTestResult> result;
const_cast<WindowStack*>(this)->for_each_visible_window_from_front_to_back([&](Window& window) {
result = window.hit_test(position);
if (result.has_value())
return IterationDecision::Break;
return IterationDecision::Continue;
});
return result;
}
}