/**
* Fire a mouse event to the registered listeners.
*
* @param eventType
* @param button
* @param lParam
*/
private void fireMouseEvent(int eventType, int button, MSLLHOOKSTRUCT lParam) {
Logger.trace("fireMouseEvent(eventType={},button={},lParam={})", eventType, button, lParam);
MouseListener[] listeners = listenerList.getListeners(MouseListener.class);
if (listeners.length > 0) {
MouseEvent evt = createMouseEvent(eventType, button, lParam);
for (int i = listeners.length - 1; i >= 0; i--) {
switch (eventType) {
case MouseEvent.MOUSE_PRESSED:
listeners[i].mousePressed(evt);
break;
case MouseEvent.MOUSE_RELEASED:
listeners[i].mouseReleased(evt);
break;
case MouseEvent.MOUSE_ENTERED:
listeners[i].mouseEntered(evt);
break;
case MouseEvent.MOUSE_EXITED:
listeners[i].mouseExited(evt);
break;
}
}
}
}
/**
* Fire a mouse wheel event to the registered listeners.
*
* @param eventType
* @param button
* @param lParam
*/
private void fireMouseWheelEvent(int eventType, MSLLHOOKSTRUCT lParam) {
Logger.trace("fireMouseWheelEvent(eventType={},lParam={})", eventType, lParam);
MouseWheelListener[] listeners = listenerList.getListeners(MouseWheelListener.class);
if (listeners.length > 0) {
MouseWheelEvent evt = createMouseWheelEvent(eventType, lParam);
for (int i = listeners.length - 1; i >= 0; i--) {
switch (eventType) {
case MouseEvent.MOUSE_WHEEL:
listeners[i].mouseWheelMoved(evt);
break;
}
}
}
}
@Override
public LRESULT callback(int nCode, WPARAM wParam, MSLLHOOKSTRUCT lParam) {
Logger.trace("callback(nCode={},wParam={},lParam={})", nCode, wParam, lParam);
if (nCode >= 0) {
Window window = SwingUtilities.getWindowAncestor(relativeTo);
Logger.trace("window={}", window);
// Is the window active...
if (window != null && window.isActive()) {
Logger.trace("window is active");
// Is the component showing...
// TODO is this still needed or is isActive good enough?
if (relativeTo.isShowing() && relativeTo.isValid()) {
Logger.trace("window is visible");
// Did the event occur inside the component bounds...
int absX = lParam.pt.x;
int absY = lParam.pt.y;
// FIXME there is a race here where relativeTo may no longer be visible, should
// I lock the component tree - is that OK from non-EDT?
Point componentPoint = relativeTo.getLocationOnScreen();
int relX = componentPoint.x;
int relY = componentPoint.y;
int relW = relX + relativeTo.getWidth();
int relH = relY + relativeTo.getHeight();
if (absX >= relX && absY >= relY && absX < relW && absY < relH) {
Logger.trace("event inside component bounds");
if (!this.mouseEntered) {
this.mouseEntered = true;
fireMouseEvent(MouseEvent.MOUSE_ENTERED, MouseEvent.NOBUTTON, lParam);
}
// The event did occur inside the component bounds, so translate it...
switch (wParam.intValue()) {
case WM_MOUSEMOVE:
fireMouseMotionEvent(MouseEvent.MOUSE_MOVED, MouseEvent.NOBUTTON, lParam);
break;
case WM_LBUTTONDOWN:
fireMouseEvent(MouseEvent.MOUSE_PRESSED, MouseEvent.BUTTON1, lParam);
break;
case WM_LBUTTONUP:
fireMouseEvent(MouseEvent.MOUSE_RELEASED, MouseEvent.BUTTON1, lParam);
break;
case WM_RBUTTONDOWN:
fireMouseEvent(MouseEvent.MOUSE_PRESSED, MouseEvent.BUTTON2, lParam);
break;
case WM_RBUTTONUP:
fireMouseEvent(MouseEvent.MOUSE_RELEASED, MouseEvent.BUTTON2, lParam);
break;
case WM_MBUTTONDOWN:
fireMouseEvent(MouseEvent.MOUSE_PRESSED, MouseEvent.BUTTON3, lParam);
break;
case WM_MBUTTONUP:
fireMouseEvent(MouseEvent.MOUSE_RELEASED, MouseEvent.BUTTON3, lParam);
break;
case WM_MOUSEWHEEL:
fireMouseWheelEvent(MouseEvent.MOUSE_WHEEL, lParam);
break;
default:
break;
}
} else {
Logger.trace("event outside component bounds");
if (this.mouseEntered) {
this.mouseEntered = false;
fireMouseEvent(MouseEvent.MOUSE_EXITED, MouseEvent.NOBUTTON, lParam);
}
}
}
}
}
return USER32_INSTANCE.CallNextHookEx(hHook, nCode, wParam, lParam.getPointer());
}
@Override
public void mouseMoved(MouseEvent e) {
Logger.trace("mouseMoved(e={})", e);
}