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WindowServer+LibGUI: Pass the set of mime types being dragged to client

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Previously the client would only learn the mime type of what was being
dropped on it once the drop occurred. To enable more sophisticated
filtering of drag & drop, we now pass along the list of mime types being
dragged to the client with each MouseMove event.

(Note that MouseMove is translated to the various Drag* events in LibGUI
on the client side.)
This commit is contained in:
Andreas Kling
2021-01-09 11:01:41 +01:00
parent 3b94af2c07
commit 67b91d51a7
15 changed files with 32 additions and 26 deletions
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4
Libraries/LibGUI/Window.cpp
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@@ -446,14 +446,14 @@ void Window::handle_drag_move_event(DragEvent& event)
auto result = m_main_widget->hit_test(event.position());
ASSERT(result.widget);
Application::the()->set_drag_hovered_widget({}, result.widget, result.local_position, event.data_type());
Application::the()->set_drag_hovered_widget({}, result.widget, result.local_position, event.mime_types());
// NOTE: Setting the drag hovered widget may have executed arbitrary code, so re-check that the widget is still there.
if (!result.widget)
return;
if (result.widget->has_pending_drop()) {
DragEvent drag_move_event(static_cast<Event::Type>(event.type()), result.local_position, event.data_type());
DragEvent drag_move_event(static_cast<Event::Type>(event.type()), result.local_position, event.mime_types());
result.widget->dispatch_event(drag_move_event, this);
}
}