@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();
}
}
