/**
* Updates the source action according to the specified state.
*
* @returns true if the source
*/
private boolean updateSourceAction(int state) {
int action =
SunDragSourceContextPeer.convertModifiersToDropAction(
XWindow.getModifiers(state, 0, 0), sourceActions);
if (sourceAction == action) {
return false;
}
sourceAction = action;
return true;
}
/*
* DO NOT USE is_hint field of xmotion since it could not be set when we
* convert XKeyEvent or XButtonRelease to XMotionEvent.
*/
private void processMouseMove(XMotionEvent xmotion) {
if (!dragInProgress) {
return;
}
if (xRoot != xmotion.get_x_root() || yRoot != xmotion.get_y_root()) {
xRoot = xmotion.get_x_root();
yRoot = xmotion.get_y_root();
postDragSourceDragEvent(
targetAction,
XWindow.getModifiers(xmotion.get_state(), 0, 0),
xRoot,
yRoot,
DISPATCH_MOUSE_MOVED);
}
if (eventState != xmotion.get_state()) {
if (updateSourceAction(xmotion.get_state()) && dragProtocol != null) {
postDragSourceDragEvent(
targetAction,
XWindow.getModifiers(xmotion.get_state(), 0, 0),
xRoot,
yRoot,
DISPATCH_CHANGED);
}
eventState = xmotion.get_state();
}
updateTargetWindow(xmotion);
if (dragProtocol != null) {
dragProtocol.sendMoveMessage(
xmotion.get_x_root(),
xmotion.get_y_root(),
sourceAction,
sourceActions,
xmotion.get_time());
}
}
public void handleDragReply(int action, int x, int y) {
// NOTE: we have to use the current modifiers state, since
// the target didn't specify the modifiers state for the reply.
handleDragReply(action, xRoot, yRoot, XWindow.getModifiers(eventState, 0, 0));
}