@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
return watchedExecute(
() -> {
final EntryEditor editor = getActiveEntryEditor();
if (editor == null) {
return null;
}
String data = fromClipboard(editor);
ISelectionProvider sp = editor.getSite().getSelectionProvider();
IStructuredSelection sel = (IStructuredSelection) sp.getSelection();
TreeNode selection = (TreeNode) sel.getFirstElement();
ValueData selectionVD = ValueData.of(selection);
Thype selThype = selectionVD.element().thype();
try {
if (selThype instanceof CollectionThypeLike) {
selection = pasteCollection(editor, selection, data);
} else if (selThype instanceof SimpleThypeLike) {
selection = pasteSimple(editor, selection, data);
} else {
ElementHelper.unsupportedThype(selThype);
}
} catch (Exception e) {
ElementHelper.panic(log, "pasting content", e);
throw e;
}
editor.refresh(selection, false);
editor.markDirty();
return null;
});
}
private TreeNode pasteCollection(EntryEditor editor, TreeNode parent, String data) {
Shell shell = editor.getSite().getShell();
Thype parentThype = ValueData.of(parent).element().thype();
SpreadSheetTable table = new SpreadSheetTable(data);
if (parentThype instanceof ArrayThype) {
if (table.numCols() != 1) {
String title = "Invalid content";
S msg = new S();
msg.addf("You can only paste a single column table" + " onto an array node!");
MessageDialog.openError(shell, title, msg.toString());
return parent;
}
parent = ElementHelper.copyOnNeed(parent, editor);
if (parent == null) {
return null;
}
addArrayElements(parent, table, range(0, table.numRows()), log);
} else if (parentThype instanceof MapThype) {
if (table.numCols() != 2) {
String title = "Invalid content";
S msg = new S();
msg.addf("You can only paste a two-column table" + " onto a map node!");
MessageDialog.openError(shell, title, msg.toString());
return null;
}
parent = ElementHelper.copyOnNeed(parent, editor);
if (parent == null) {
return null;
}
addMapElements(parent, table, range(0, table.numRows()), log);
} else {
ElementHelper.unsupportedThype(parentThype);
return null;
}
return parent;
}