@Override
public void performDragOver(DropTargetEvent event) {
if (!ArtifactTransfer.getInstance().isSupportedType(event.currentDataType)) {
event.detail = DND.DROP_NONE;
return;
}
final ArtifactData artData = ArtifactTransfer.getInstance().nativeToJava(event.currentDataType);
if (artData == null) {
event.detail = DND.DROP_NONE;
return;
}
for (Artifact art : artData.getArtifacts()) {
if (art.isOfType(CoreArtifactTypes.UniversalGroup)) {
event.detail = DND.DROP_NONE;
return;
}
}
Tree tree = treeViewer.getTree();
TreeItem dragOverTreeItem = tree.getItem(treeViewer.getTree().toControl(event.x, event.y));
event.feedback = DND.FEEDBACK_EXPAND;
event.detail = DND.DROP_NONE;
// Set as COPY if drag item over group (copy versus move will be determined on drop
if (dragOverTreeItem != null
&& ((GroupExplorerItem) dragOverTreeItem.getData()).isUniversalGroup()) {
event.detail = DND.DROP_COPY;
tree.setInsertMark(null, false);
}
// Handle re-ordering within same group
else if (dragOverTreeItem != null
&& !((GroupExplorerItem) dragOverTreeItem.getData()).isUniversalGroup()) {
GroupExplorerItem dragOverGroupItem = (GroupExplorerItem) dragOverTreeItem.getData();
IStructuredSelection selectedItem = (IStructuredSelection) treeViewer.getSelection();
Object obj = selectedItem.getFirstElement();
if (obj instanceof GroupExplorerItem) {
GroupExplorerItem droppingGroupItem = (GroupExplorerItem) obj;
// the group to move must belong to the same group as the member to insert before/after
if (dragOverGroupItem.getParentItem().equals(droppingGroupItem.getParentItem())) {
if (isFeedbackAfter) {
event.feedback = DND.FEEDBACK_INSERT_AFTER;
} else {
event.feedback = DND.FEEDBACK_INSERT_BEFORE;
}
event.detail = DND.DROP_MOVE;
}
} else {
if (isFeedbackAfter) {
event.feedback = DND.FEEDBACK_INSERT_AFTER;
} else {
event.feedback = DND.FEEDBACK_INSERT_BEFORE;
}
event.detail = DND.DROP_COPY;
}
} else {
tree.setInsertMark(null, false);
}
}
public void copyArtifactsToGroup(
DropTargetEvent event, final GroupExplorerItem dragOverExplorerItem) {
// Items dropped on Group; simply add items to group
final Artifact[] artsToRelate = ((ArtifactData) event.data).getArtifacts();
for (Artifact artifact : artsToRelate) {
if (!artifact.getBranch().equals(branch)) {
AWorkbench.popup(
"ERROR",
"Cross-branch grouping not supported.\n\nGroup and Artifacts must belong to same branch.");
return;
}
}
boolean alreadyRelated = true;
for (Artifact artifact : artsToRelate) {
if (!dragOverExplorerItem.contains(artifact)) {
alreadyRelated = false;
break;
}
}
if (alreadyRelated) {
AWorkbench.popup("ERROR", "Artifact(s) already related.");
return;
}
try {
for (Artifact art : artsToRelate) {
if (!dragOverExplorerItem.contains(art)) {
dragOverExplorerItem
.getArtifact()
.addRelation(CoreRelationTypes.Universal_Grouping__Members, art);
}
}
dragOverExplorerItem.getArtifact().persist("Drag and drop: copy artifacts to group");
} catch (Exception ex) {
OseeLog.log(Activator.class, OseeLevel.SEVERE_POPUP, ex);
}
}
@Override
public void performDrop(DropTargetEvent event) {
try {
TreeItem dragOverTreeITem =
treeViewer.getTree().getItem(treeViewer.getTree().toControl(event.x, event.y));
// This should always be true as all items are Group Explorer Items
if (dragOverTreeITem.getData() instanceof GroupExplorerItem) {
final GroupExplorerItem dragOverExplorerItem =
(GroupExplorerItem) dragOverTreeITem.getData();
// Drag item dropped ON universal group item
if (dragOverExplorerItem.isUniversalGroup()) {
// Drag item came from inside Group Explorer
if (event.data instanceof ArtifactData) {
// If event originated outside, it's a copy event;
// OR if event is inside and ctrl is down, this is a copy; add items to group
if (!((ArtifactData) event.data).getSource().equals(viewId)
|| ((ArtifactData) event.data).getSource().equals(viewId) && isCtrlPressed) {
copyArtifactsToGroup(event, dragOverExplorerItem);
}
// Else this is a move
else {
IStructuredSelection selectedItem = (IStructuredSelection) treeViewer.getSelection();
Iterator<?> iterator = selectedItem.iterator();
final Set<Artifact> insertArts = new HashSet<Artifact>();
while (iterator.hasNext()) {
Object obj = iterator.next();
if (obj instanceof GroupExplorerItem) {
insertArts.add(((GroupExplorerItem) obj).getArtifact());
}
}
GroupExplorerItem parentUnivGroupItem =
((GroupExplorerItem) selectedItem.getFirstElement()).getParentItem();
final Artifact parentArtifact = parentUnivGroupItem.getArtifact();
final Artifact targetArtifact = dragOverExplorerItem.getArtifact();
for (Artifact artifact : insertArts) {
// Remove item from old group
parentArtifact.deleteRelation(
CoreRelationTypes.Universal_Grouping__Members, artifact);
// Add items to new group
targetArtifact.addRelation(CoreRelationTypes.Universal_Grouping__Members, artifact);
}
Artifacts.persistInTransaction(
"Group Explorer - Drag/Drop", parentArtifact, targetArtifact);
}
}
}
// Drag item dropped before or after group member
else if (!dragOverExplorerItem.isUniversalGroup()) {
if (event.data instanceof ArtifactData) {
GroupExplorerItem parentUnivGroupItem = null;
// Drag item came from inside Group Explorer
if (((ArtifactData) event.data).getSource().equals(viewId)) {
IStructuredSelection selectedItem = (IStructuredSelection) treeViewer.getSelection();
Iterator<?> iterator = selectedItem.iterator();
Set<Artifact> insertArts = new HashSet<Artifact>();
while (iterator.hasNext()) {
Object obj = iterator.next();
if (obj instanceof GroupExplorerItem) {
insertArts.add(((GroupExplorerItem) obj).getArtifact());
}
}
parentUnivGroupItem =
((GroupExplorerItem) selectedItem.getFirstElement()).getParentItem();
insertArts.toArray(new Artifact[insertArts.size()]);
Artifact parentArtifact = parentUnivGroupItem.getArtifact();
Artifact targetArtifact = dragOverExplorerItem.getArtifact();
for (Artifact art : insertArts) {
parentArtifact.setRelationOrder(
CoreRelationTypes.Universal_Grouping__Members,
targetArtifact,
isFeedbackAfter,
art);
targetArtifact = art;
}
parentArtifact.persist(getClass().getSimpleName());
}
// Drag item came from outside Group Explorer
else {
List<Artifact> insertArts = Arrays.asList(((ArtifactData) event.data).getArtifacts());
parentUnivGroupItem = dragOverExplorerItem.getParentItem();
insertArts.toArray(new Artifact[insertArts.size()]);
Artifact parentArtifact = parentUnivGroupItem.getArtifact();
Artifact targetArtifact = dragOverExplorerItem.getArtifact();
for (Artifact art : insertArts) {
parentArtifact.addRelation(
RelationOrderBaseTypes.USER_DEFINED,
CoreRelationTypes.Universal_Grouping__Members,
targetArtifact,
isFeedbackAfter,
art,
"");
}
parentArtifact.persist(getClass().getSimpleName());
}
}
}
treeViewer.refresh(dragOverExplorerItem);
}
isFeedbackAfter = false;
} catch (Exception ex) {
OseeLog.log(Activator.class, OseeLevel.SEVERE_POPUP, ex);
}
}
