Method mousePressEvent

app/src/UI/WindowManager.cpp:1960–2046

* @brief Handles mouse press interactions for initiating window drag or resize. */

 * @brief Handles mouse press interactions for initiating window drag or resize.
 */
void UI::WindowManager::mousePressEvent(QMouseEvent* event)
{
  if (!autoLayoutEnabled()) {
    if (startManualPress(event->pos(), event->button())) {
      event->accept();
      return;
    }

    if (!m_focusedWindow) {
      if (m_taskbar)
        m_taskbar->setActiveWindow(nullptr);

      if (event->button() == Qt::RightButton) {
        Q_EMIT rightClicked(event->pos().x(), event->pos().y());
        event->accept();
        return;
      }
    }

    QQuickItem::mousePressEvent(event);
    return;
  }

  m_dragWindow      = nullptr;
  m_targetWindow    = nullptr;
  m_resizeWindow    = nullptr;
  m_focusedWindow   = nullptr;
  m_resizeEdge      = ResizeEdge::None;
  m_initialMousePos = event->pos();

  if (m_snapIndicatorVisible) {
    m_snapIndicatorVisible = false;
    Q_EMIT snapIndicatorChanged();
  }

  m_focusedWindow = topmostWindowAt(m_initialMousePos);

  if (!m_focusedWindow) {
    if (m_taskbar)
      m_taskbar->setActiveWindow(nullptr);

    if (event->button() == Qt::RightButton)
      Q_EMIT rightClicked(m_initialMousePos.x(), m_initialMousePos.y());

    return;
  }

  if (m_taskbar)
    m_taskbar->setActiveWindow(m_focusedWindow);

  bool captionClick     = false;
  const int captionH    = m_focusedWindow->property("captionHeight").toInt();
  const int externcW    = m_focusedWindow->property("externControlWidth").toInt();
  const int buttonsW    = m_focusedWindow->property("windowControlsWidth").toInt();
  const auto mouseClick = m_focusedWindow->mapFromItem(this, m_initialMousePos);
  if (mouseClick.y() <= captionH) {
    if (mouseClick.x() <= m_focusedWindow->width() - buttonsW && mouseClick.x() > externcW)
      captionClick = true;