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LibGUI: Add "drag enter" and "drag leave" events

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These events allow widgets to react when a drag enters/leaves their
rectangle. The enter event carries position + mime type, while the
leave event has no information.
This commit is contained in:
Andreas Kling 2021-01-08 22:23:06 +01:00
parent 4728d0dd6a
commit 9acb72e804
7 changed files with 60 additions and 3 deletions
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2
Libraries/LibGUI/Window.cpp
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@ -446,12 +446,14 @@ void Window::handle_drag_move_event(DragEvent& event)
auto result = m_main_widget->hit_test(event.position());
auto local_event = make<DragEvent>(static_cast<Event::Type>(event.type()), result.local_position, event.data_type());
ASSERT(result.widget);
Application::the()->set_drag_hovered_widget({}, result.widget, result.local_position, event.data_type());
return result.widget->dispatch_event(*local_event, this);
}
void Window::handle_left_event()
{
set_hovered_widget(nullptr);
Application::the()->set_drag_hovered_widget({}, nullptr);
}
void Window::event(Core::Event& event)