private EditorCell getNextLeaf(EditorCell current) {
if (mySide == CellSide.LEFT) {
return current.getPrevLeaf(CellConditions.SELECTABLE);
} else {
return current.getNextLeaf(CellConditions.SELECTABLE);
}
}
private EditorCell findTarget(EditorCell cell) {
EditorCell toRight = cell.getLeafToRight(CellConditions.SELECTABLE);
if (toRight != null) {
return toRight;
}
return cell.getNextLeaf(CellConditions.SELECTABLE);
}
private boolean canExecute_internal(
final KeyEvent keyEvent,
final EditorContext editorContext,
final SNode node,
final List<SNode> selectedNodes) {
if (ListSequence.fromList(selectedNodes).count() != 1) {
return false;
}
// Selected node should be within TypeVariableDeclaration
SNode selectedNode = ListSequence.fromList(selectedNodes).first();
SNode typeVarDeclaration =
SNodeOperations.getAncestor(
selectedNode,
"jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration",
true,
false);
if (typeVarDeclaration == null) {
return false;
}
// Next cell should belong to some other SNode, not our typeVarDeclaration
jetbrains.mps.nodeEditor.cells.EditorCell selectedCell =
(jetbrains.mps.nodeEditor.cells.EditorCell) editorContext.getSelectedCell();
jetbrains.mps.nodeEditor.cells.EditorCell nextLeaf = selectedCell.getNextLeaf();
if (nextLeaf == null) {
return false;
}
SNode nextCellNode = (SNode) nextLeaf.getSNode();
return nextCellNode != null && nextCellNode != typeVarDeclaration;
}
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 findTarget(SelectionManager selectionManager) {
Selection selection = selectionManager.getSelection();
if (selection == null) {
return null;
}
List<EditorCell> selectedCells = selection.getSelectedCells();
EditorCell cell = myHome ? selectedCells.get(0) : selectedCells.get(selectedCells.size() - 1);
EditorCell leaf =
myHome
? cell.getLeafToLeft(CellConditions.SELECTABLE)
: cell.getLeafToRight(CellConditions.SELECTABLE);
if (leaf != null) {
return leaf;
}
return myHome
? cell.getPrevLeaf(CellConditions.SELECTABLE)
: cell.getNextLeaf(CellConditions.SELECTABLE);
}
public void execute(jetbrains.mps.openapi.editor.EditorContext context) {
EditorComponent editorComponent = (EditorComponent) context.getEditorComponent();
EditorCell selection = editorComponent.getSelectedCell();
editorComponent.changeSelection(selection.getNextLeaf(CellConditions.EDITABLE));
}
public boolean canExecute(jetbrains.mps.openapi.editor.EditorContext context) {
EditorCell selection = ((EditorComponent) context.getEditorComponent()).getSelectedCell();
return selection != null && selection.getNextLeaf(CellConditions.EDITABLE) != null;
}