/** Adds drag and drop support to the tree viewer. */
private void addDragAndDropSupport() {
final DelegatingDropAdapter dropAdapter = new DelegatingDropAdapter();
dropAdapter.addDropTargetListener(
new AlarmTreeLocalSelectionDropListener(this, _ldapModificationItems));
dropAdapter.addDropTargetListener(
new AlarmTreeProcessVariableDropListener(this, _ldapModificationItems));
_viewer.addDropSupport(DND.DROP_COPY | DND.DROP_MOVE, dropAdapter.getTransfers(), dropAdapter);
final DelegatingDragAdapter dragAdapter = new DelegatingDragAdapter();
dragAdapter.addDragSourceListener(new AlarmTreeLocalSelectionDragListener(this));
dragAdapter.addDragSourceListener(new AlarmTreeProcessVariableDragListener(this));
dragAdapter.addDragSourceListener(new AlarmTreeTextDragListener(this));
_viewer.addDragSupport(DND.DROP_COPY | DND.DROP_MOVE, dragAdapter.getTransfers(), dragAdapter);
}
/** Unconfigure the content outline page */
private void unconfigure() {
if (getTreeViewer() != null) {
// remove the key listeners
if (getControl() != null && !getControl().isDisposed()) {
KeyListener[] listeners = getConfiguration().getKeyListeners(getTreeViewer());
if (listeners != null) {
for (int i = 0; i < listeners.length; i++) {
getControl().removeKeyListener(listeners[i]);
}
}
}
IContributionManager toolbar = getSite().getActionBars().getToolBarManager();
if (toolbar != null && !toolbar.isEmpty()) {
IContributionItem[] toolbarItems =
getConfiguration().getToolbarContributions(getTreeViewer());
if (toolbarItems != null && toolbarItems.length > 0) {
for (int i = 0; i < toolbarItems.length; i++) {
toolbar.remove(toolbarItems[i]);
}
toolbar.update(false);
}
}
IContributionManager menubar = getSite().getActionBars().getMenuManager();
if (menubar != null && !menubar.isEmpty()) {
IContributionItem[] menuItems = getConfiguration().getMenuContributions(getTreeViewer());
if (menuItems != null && menuItems.length > 0) {
for (int i = 0; i < menuItems.length; i++) {
menubar.remove(menuItems[i]);
}
menubar.remove(IWorkbenchActionConstants.MB_ADDITIONS);
menubar.update(false);
}
}
// clear the DnD listeners and transfer types
if (fDragAdapter != null
&& !fDragAdapter.isEmpty()
&& fDragSource != null
&& !fDragSource.isDisposed()
&& fDragSource.getTransfer().length > 0) {
if (fActiveDragListeners != null) {
for (int i = 0; i < fActiveDragListeners.length; i++) {
fDragAdapter.removeDragSourceListener(fActiveDragListeners[i]);
}
}
fActiveDragListeners = null;
fDragSource.removeDragListener(fDragAdapter);
fDragSource.setTransfer(new Transfer[0]);
}
if (fDropAdapter != null
&& !fDropAdapter.isEmpty()
&& fDropTarget != null
&& !fDropTarget.isDisposed()
&& fDropTarget.getTransfer().length > 0) {
if (fActiveDropListeners != null) {
for (int i = 0; i < fActiveDropListeners.length; i++) {
fDropAdapter.removeDropTargetListener(fActiveDropListeners[i]);
}
}
fActiveDropListeners = null;
fDropTarget.removeDropListener(fDropAdapter);
fDropTarget.setTransfer(new Transfer[0]);
}
getConfiguration()
.getContentProvider(getTreeViewer())
.inputChanged(getTreeViewer(), fInput, null);
// release any ties to this tree viewer
getConfiguration().unconfigure(getTreeViewer());
}
}
/**
* Configures (or reconfigures) the page according to the given configuration.
*
* @param configuration
*/
public void setConfiguration(ContentOutlineConfiguration configuration) {
// intentionally do not check to see if the new configuration != old
// configuration
unconfigure();
fConfiguration = configuration;
if (getTreeViewer() != null && getControl() != null && !getControl().isDisposed()) {
// (re)set the providers
ILabelProvider labelProvider = getConfiguration().getLabelProvider(getTreeViewer());
if (labelProvider instanceof IStyledLabelProvider) {
getTreeViewer()
.setLabelProvider(
new DelegatingStyledCellLabelProvider((IStyledLabelProvider) labelProvider));
} else {
getTreeViewer().setLabelProvider(labelProvider);
}
getTreeViewer().setContentProvider(getConfiguration().getContentProvider(getTreeViewer()));
// view toolbar
IContributionManager toolbar = getSite().getActionBars().getToolBarManager();
if (toolbar != null) {
IContributionItem[] toolbarItems =
getConfiguration().getToolbarContributions(getTreeViewer());
if (toolbarItems != null) {
for (int i = 0; i < toolbarItems.length; i++) {
toolbar.add(toolbarItems[i]);
}
toolbar.update(true);
}
}
// view menu
IContributionManager menu = getSite().getActionBars().getMenuManager();
if (menu != null) {
IContributionItem[] menuItems = getConfiguration().getMenuContributions(getTreeViewer());
if (menuItems != null) {
for (int i = 0; i < menuItems.length; i++) {
menuItems[i].setVisible(true);
menu.add(menuItems[i]);
menuItems[i].update();
}
menu.update(true);
}
}
// add the allowed DnD listeners and types
TransferDragSourceListener[] dragListeners =
getConfiguration().getTransferDragSourceListeners(getTreeViewer());
if (fDragAdapter != null && dragListeners.length > 0) {
for (int i = 0; i < dragListeners.length; i++) {
fDragAdapter.addDragSourceListener(dragListeners[i]);
}
fActiveDragListeners = dragListeners;
fDragSource.addDragListener(fDragAdapter);
fDragSource.setTransfer(fDragAdapter.getTransfers());
}
TransferDropTargetListener[] dropListeners =
getConfiguration().getTransferDropTargetListeners(getTreeViewer());
if (fDropAdapter != null && dropListeners.length > 0) {
for (int i = 0; i < dropListeners.length; i++) {
fDropAdapter.addDropTargetListener(dropListeners[i]);
}
fActiveDropListeners = dropListeners;
fDropTarget.addDropListener(fDropAdapter);
fDropTarget.setTransfer(fDropAdapter.getTransfers());
}
// add the key listeners
KeyListener[] listeners = getConfiguration().getKeyListeners(getTreeViewer());
if (listeners != null) {
for (int i = 0; i < listeners.length; i++) {
getControl().addKeyListener(listeners[i]);
}
}
}
if (fInput != null) {
setInput(fInput);
}
}