@Override
public void drop(DnDEvent aEvent) {
Object attached = aEvent.getAttachedObject();
if (!(attached instanceof ChangeListDragBean)) return;
final ChangeListDragBean dragBean = (ChangeListDragBean) attached;
final ChangesBrowserNode changesBrowserNode = dragBean.getTargetNode();
if (changesBrowserNode != null) {
changesBrowserNode.acceptDrop(myDragOwner, dragBean);
}
}
@Override
public void acceptDrop(final ChangeListOwner dragOwner, final ChangeListDragBean dragBean) {
if (!(userObject instanceof LocalChangeList)) {
return;
}
final LocalChangeList dropList = (LocalChangeList) getUserObject();
dragOwner.moveChangesTo(dropList, dragBean.getChanges());
final List<VirtualFile> toUpdate = new ArrayList<VirtualFile>();
addIfNotNull(toUpdate, dragBean.getUnversionedFiles());
addIfNotNull(toUpdate, dragBean.getIgnoredFiles());
if (!toUpdate.isEmpty()) {
dragOwner.addUnversionedFiles(dropList, toUpdate);
}
}
@Override
public boolean canAcceptDrop(final ChangeListDragBean dragBean) {
final Change[] changes = dragBean.getChanges();
for (Change change : getUserObject().getChanges()) {
for (Change incomingChange : changes) {
if (change == incomingChange) return false;
}
}
return true;
}
@Override
public boolean update(DnDEvent aEvent) {
aEvent.hideHighlighter();
aEvent.setDropPossible(false, "");
Object attached = aEvent.getAttachedObject();
if (!(attached instanceof ChangeListDragBean)) return false;
final ChangeListDragBean dragBean = (ChangeListDragBean) attached;
if (dragBean.getSourceComponent() != ChangesListView.this) return false;
dragBean.setTargetNode(null);
RelativePoint dropPoint = aEvent.getRelativePoint();
Point onTree = dropPoint.getPoint(ChangesListView.this);
final TreePath dropPath = getPathForLocation(onTree.x, onTree.y);
if (dropPath == null) return false;
ChangesBrowserNode dropNode = (ChangesBrowserNode) dropPath.getLastPathComponent();
while (!((ChangesBrowserNode) dropNode.getParent()).isRoot()) {
dropNode = (ChangesBrowserNode) dropNode.getParent();
}
if (!dropNode.canAcceptDrop(dragBean)) {
return false;
}
final Rectangle tableCellRect = getPathBounds(new TreePath(dropNode.getPath()));
if (fitsInBounds(tableCellRect)) {
aEvent.setHighlighting(
new RelativeRectangle(ChangesListView.this, tableCellRect),
DnDEvent.DropTargetHighlightingType.RECTANGLE);
}
aEvent.setDropPossible(true);
dragBean.setTargetNode(dropNode);
return false;
}