private boolean processSideDeletes(CellActionType type) {
// TODO: review this logic - it was originally copied from EditorComponentKeyboardHandler
final EditorCell selectedCell = getEditorCell();
if (type == CellActionType.DELETE
&& selectedCell.isLastPositionInBigCell()
&& !selectedCell.isFirstPositionInBigCell()) {
final EditorCell target;
if (selectedCell.isLastPositionInBigCell()
&& selectedCell.getContainingBigCell().getNextSibling() != null) {
target = selectedCell.getContainingBigCell().getNextSibling();
} else if (selectedCell.getNextSibling() != null) {
target = selectedCell.getNextSibling();
} else {
target = selectedCell.getNextLeaf(CellConditions.SELECTABLE);
}
if (target == null
|| ModelAccess.instance()
.runReadAction(
new Computable<Boolean>() {
public Boolean compute() {
return target.getSNode().isAncestorOf(selectedCell.getSNode());
}
})) return false;
return target.executeAction(CellActionType.DELETE);
}
if (type == CellActionType.BACKSPACE
&& selectedCell.isFirstPositionInBigCell()
&& !selectedCell.isLastPositionInBigCell()) {
final EditorCell target;
if (selectedCell.isFirstPositionInBigCell()
&& selectedCell.getContainingBigCell().getPrevSibling() != null) {
target = selectedCell.getContainingBigCell().getPrevSibling();
} else if (selectedCell.getPrevSibling() != null) {
target = selectedCell.getPrevSibling();
} else {
target = selectedCell.getPrevLeaf(CellConditions.SELECTABLE);
}
if (target == null) return false;
/*
if (ModelAccess.instance().runReadAction(new Computable<Boolean>() {
public Boolean compute() {
return target.getSNode().isAncestorOf(selectedCell.getSNode());
}
})) return false;
*/
return target.executeAction(CellActionType.DELETE);
}
return false;
}
private EditorCell getCellToPasteTo(EditorCell cell) {
if (cell == null) {
return cell;
}
if (cell.isLastPositionInBigCell()) return cell;
if (cell instanceof EditorCell_Label && cell.getRole() == null) {
EditorCell result = new ChildrenCollectionFinder(cell, true, false).find();
if (result != null) {
return result;
}
result = new ChildrenCollectionFinder(cell, false, false).find();
if (result != null) {
if (result instanceof EditorCell_Collection) {
return result.getLastChild();
}
return result;
}
}
return cell;
}