private EditorCell findTarget(SelectionManager selectionManager) {
Selection selection = selectionManager.getSelection();
if (selection == null) {
return null;
}
jetbrains.mps.openapi.editor.cells.EditorCell cell = selection.getSelectedCells().get(0);
if (cell instanceof EditorCell_Label && !((EditorCell_Label) cell).isEverythingSelected()) {
return (EditorCell) cell;
}
if (cell.getParent() == null) {
return null;
}
while (cell.getParent() != null && cell.getParent().isTransparentCollection()) {
cell = cell.getParent();
}
jetbrains.mps.openapi.editor.cells.EditorCell_Collection parent = cell.getParent();
while (parent != null) {
if (parent.isSelectable()) {
while (parent.getParent() != null
&& parent.getParent().isTransparentCollection()
&& parent.getParent().isSelectable()) {
parent = parent.getParent();
}
return (EditorCell) parent;
}
parent = parent.getParent();
}
return null;
}
/**
* We can use this method to determine if we should redispatch insert event to the corresponding
* child collection below the cell returned from cell.getPrevLeaf() or we should go on and insert
* prev. child into a collection containing cell itself
*
* @return true if we should redispatch insert event to the prev. leaft cell
*/
private static boolean hasSingleRolesAtLeftBoundary(EditorCell cell) {
if (!(hasSingleRole(cell))) {
return false;
}
if (isOnLeftBoundary(cell)) {
final EditorCell_Collection parentCell = cell.getParent();
if (parentCell != null) {
final EditorCell prevLeaf = APICellAdapter.getPrevLeaf(cell);
if (prevLeaf != null) {
final Wrappers._boolean ancestor = new Wrappers._boolean(false);
ModelAccess.instance()
.runReadAction(
new Runnable() {
public void run() {
ancestor.value =
SNodeOperations.isAncestor(parentCell.getSNode(), prevLeaf.getSNode());
}
});
if (ancestor.value) {
return true;
}
}
return hasSingleRolesAtLeftBoundary((jetbrains.mps.nodeEditor.cells.EditorCell) parentCell);
}
}
return true;
}
@Override
public boolean isAncestorOf(EditorCell cell) {
while (cell != null) {
cell = cell.getParent();
if (cell == this) return true;
}
return false;
}
@Override
public boolean canExecute(EditorContext context) {
jetbrains.mps.openapi.editor.cells.EditorCell cell =
context.getEditorComponent().findNodeCell(mySemanticNode);
return cell != null
&& cell.getParent() != null
&& !ReadOnlyUtil.isCellOrSelectionReadOnlyInEditor(context.getEditorComponent(), cell);
}
public static boolean isUnderFolded(EditorCell cell) {
for (EditorCell_Collection parent = cell.getParent();
parent != null;
parent = parent.getParent()) {
if (parent.isCollapsed()) return true;
}
return false;
}
private Pair<EditorCell, String> getMatchingLabelAndCell(EditorCell editorCell) {
SNode node = editorCell.getSNode();
while (editorCell != null && editorCell.getSNode() == node) {
if (editorCell.getStyle().get(StyleAttributes.MATCHING_LABEL) != null) {
return new Pair(editorCell, editorCell.getStyle().get(StyleAttributes.MATCHING_LABEL));
}
editorCell = editorCell.getParent();
}
return null;
}
@Override
public void selectionChanged(
jetbrains.mps.openapi.editor.EditorComponent editorComponent,
Selection oldSelection,
Selection newSelection) {
if (oldSelection == newSelection) {
return;
}
if (myClosingBrace.isSelected() || myOpeningBrace.isSelected()) {
enableBraces();
return;
}
EditorCell deepestSelection = editorComponent.getDeepestSelectedCell();
EditorCell lastSelectableLeaf =
CellFinderUtil.findChildByCondition(
EditorCell_Collection.this, LAST_SELECTABLE_LEAF_EXCLUDING_BRACE, false);
EditorCell firstSelectableLeaf =
CellFinderUtil.findChildByCondition(
EditorCell_Collection.this, FIRST_SELECTABLE_LEAF_EXCLUDING_BRACE, true);
if (deepestSelection instanceof EditorCell_Brace) {
EditorCell_Collection braceOwner = (EditorCell_Collection) deepestSelection.getParent();
if (braceOwner.myClosingBrace == deepestSelection
&& CellFinderUtil.findChildByCondition(
braceOwner, LAST_SELECTABLE_LEAF_EXCLUDING_BRACE, false)
== lastSelectableLeaf) {
enableBraces();
return;
}
if (braceOwner.myOpeningBrace == deepestSelection
&& CellFinderUtil.findChildByCondition(
braceOwner, FIRST_SELECTABLE_LEAF_EXCLUDING_BRACE, true)
== firstSelectableLeaf) {
enableBraces();
return;
}
}
if (lastSelectableLeaf == deepestSelection || firstSelectableLeaf == deepestSelection) {
enableBraces();
} else {
disableBraces();
}
}
private RestorableSelection saveSelection(EditorContext editorContext) {
EditorCell selectedCell = editorContext.getSelectedCell();
if (selectedCell == null || selectedCell instanceof EditorCell_Collection) {
// No need to save selection, it will be restored by normal means
return null;
}
EditorCell_Collection parent = selectedCell.getParent();
if (parent.getCellsCount() < EXPECTED_CHILD_INDEX + 1
|| parent.getCellAt(EXPECTED_CHILD_INDEX) != selectedCell) {
// No need to save selection, it will be restored by normal means
return null;
}
return new RestorableSelectionByCell(
new ChildCellLocator(
new CellIdLocator(parent.getCellId(), parent.getSNode()), EXPECTED_CHILD_INDEX),
createCellSelector(selectedCell));
}
private EditorCell getCommonSelectableAncestor(
jetbrains.mps.openapi.editor.cells.EditorCell first,
jetbrains.mps.openapi.editor.cells.EditorCell... cells) {
jetbrains.mps.openapi.editor.cells.EditorCell_Collection result =
first instanceof jetbrains.mps.openapi.editor.cells.EditorCell_Collection
? (jetbrains.mps.openapi.editor.cells.EditorCell_Collection) first
: first.getParent();
while (result != null) {
if (result.isSelectable()) {
boolean common = true;
for (jetbrains.mps.openapi.editor.cells.EditorCell cell : cells) {
if (!result.isAncestorOf(cell) && result != cell) {
common = false;
break;
}
}
if (common) return (EditorCell) result;
}
result = result.getParent();
}
return null;
}
