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Support polling with select() by using a zero timeout.

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Use this in WindowServer to avoid getting blocked in select() when
there are pending injected events.
This commit is contained in:
Andreas Kling 2019-01-18 05:26:45 +01:00
parent a01e119e05
commit dff5051905
4 changed files with 24 additions and 7 deletions
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8
WindowServer/WSWindowManager.cpp
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@ -212,7 +212,9 @@ void WSWindowManager::notifyRectChanged(WSWindow& window, const Rect& old_rect,
void WSWindowManager::handleTitleBarMouseEvent(WSWindow& window, MouseEvent& event)
{
if (event.type() == WSEvent::MouseDown && event.button() == MouseButton::Left) {
#ifdef DRAG_DEBUG
printf("[WM] Begin dragging WSWindow{%p}\n", &window);
#endif
m_dragWindow = window.makeWeakPtr();;
m_dragOrigin = event.position();
m_dragWindowOrigin = window.position();
@ -226,7 +228,9 @@ void WSWindowManager::processMouseEvent(MouseEvent& event)
{
if (event.type() == WSEvent::MouseUp && event.button() == MouseButton::Left) {
if (m_dragWindow) {
#ifdef DRAG_DEBUG
printf("[WM] Finish dragging WSWindow{%p}\n", m_dragWindow.ptr());
#endif
invalidate(m_dragStartRect);
invalidate(*m_dragWindow);
m_dragWindow->set_is_being_dragged(false);
@ -240,7 +244,9 @@ void WSWindowManager::processMouseEvent(MouseEvent& event)
if (m_dragWindow) {
auto old_window_rect = m_dragWindow->rect();
Point pos = m_dragWindowOrigin;
printf("[WM] Dragging [origin: %d,%d] now: %d,%d\n", m_dragOrigin.x(), m_dragOrigin.y(), event.x(), event.y());
#ifdef DRAG_DEBUG
dbgprintf("[WM] Dragging [origin: %d,%d] now: %d,%d\n", m_dragOrigin.x(), m_dragOrigin.y(), event.x(), event.y());
#endif
pos.move_by(event.x() - m_dragOrigin.x(), event.y() - m_dragOrigin.y());
m_dragWindow->set_position_without_repaint(pos);
invalidate(outerRectForWindow(old_window_rect));