@Override
protected void handleComponentReordering(DragAndDropEvent event) {
LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
TabSheetTargetDetails details = (TabSheetTargetDetails) event.getTargetDetails();
DDTabSheet tabSheet = (DDTabSheet) details.getTarget();
Component c = transferable.getComponent();
Tab tab = tabSheet.getTab(c);
HorizontalDropLocation location = details.getDropLocation();
int idx = details.getOverIndex();
if (location == HorizontalDropLocation.LEFT) {
// Left of previous tab
int originalIndex = tabSheet.getTabPosition(tab);
if (originalIndex > idx) {
tabSheet.setTabPosition(tab, idx);
} else if (idx - 1 >= 0) {
tabSheet.setTabPosition(tab, idx - 1);
}
} else if (location == HorizontalDropLocation.RIGHT) {
// Right of previous tab
int originalIndex = tabSheet.getTabPosition(tab);
if (originalIndex > idx) {
tabSheet.setTabPosition(tab, idx + 1);
} else {
tabSheet.setTabPosition(tab, idx);
}
}
}
@Override
protected void handleHTML5Drop(DragAndDropEvent event) {
TabSheetTargetDetails details = (TabSheetTargetDetails) event.getTargetDetails();
HorizontalDropLocation location = details.getDropLocation();
DDTabSheet tabSheet = (DDTabSheet) details.getTarget();
int idx = details.getOverIndex();
Component c = resolveComponentFromHTML5Drop(event);
c.setCaption(resolveCaptionFromHTML5Drop(event));
if (location == HorizontalDropLocation.LEFT) {
tabSheet.addTab(c, idx);
} else if (location == HorizontalDropLocation.RIGHT) {
tabSheet.addTab(c, idx + 1);
}
}
@Override
protected void handleDropFromLayout(DragAndDropEvent event) {
LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
TabSheetTargetDetails details = (TabSheetTargetDetails) event.getTargetDetails();
DDTabSheet tabSheet = (DDTabSheet) details.getTarget();
Component c = transferable.getComponent();
HorizontalDropLocation location = details.getDropLocation();
int idx = details.getOverIndex();
ComponentContainer source = (ComponentContainer) transferable.getSourceComponent();
// Detach from old source
if (source instanceof ComponentContainer) {
((ComponentContainer) source).removeComponent(c);
} else if (source instanceof SingleComponentContainer) {
((SingleComponentContainer) source).setContent(null);
}
if (location == HorizontalDropLocation.LEFT) {
tabSheet.addTab(c, idx);
} else if (location == HorizontalDropLocation.RIGHT) {
tabSheet.addTab(c, idx + 1);
}
}