@Override
public FoldRegion createFoldRegion(
int startOffset,
int endOffset,
@NotNull String placeholder,
@Nullable FoldingGroup group,
boolean neverExpands) {
FoldRegionImpl region =
new FoldRegionImpl(myEditor, startOffset, endOffset, placeholder, group, neverExpands);
LOG.assertTrue(region.isValid());
return region;
}
public void collapseFoldRegion(FoldRegion region) {
assertIsDispatchThreadForEditor();
if (!region.isExpanded()) return;
if (!myIsBatchFoldingProcessing) {
LOG.error("Fold regions must be collapsed or expanded inside batchFoldProcessing() only.");
}
List<Caret> carets = myEditor.getCaretModel().getAllCarets();
for (Caret caret : carets) {
LogicalPosition caretPosition = caret.getLogicalPosition();
int caretOffset = myEditor.logicalPositionToOffset(caretPosition);
if (FoldRegionsTree.contains(region, caretOffset)) {
if (myDoNotCollapseCaret) return;
}
}
for (Caret caret : carets) {
LogicalPosition caretPosition = caret.getLogicalPosition();
int caretOffset = myEditor.logicalPositionToOffset(caretPosition);
if (FoldRegionsTree.contains(region, caretOffset)) {
if (caret.getUserData(SAVED_CARET_POSITION) == null) {
caret.putUserData(SAVED_CARET_POSITION, caretPosition.withoutVisualPositionInfo());
}
}
}
myFoldRegionsProcessed = true;
((FoldRegionImpl) region).setExpandedInternal(false);
notifyListenersOnFoldRegionStateChange(region);
}
public void expandFoldRegion(FoldRegion region) {
assertIsDispatchThreadForEditor();
if (region.isExpanded() || region.shouldNeverExpand()) return;
if (!myIsBatchFoldingProcessing) {
LOG.error("Fold regions must be collapsed or expanded inside batchFoldProcessing() only.");
}
for (Caret caret : myEditor.getCaretModel().getAllCarets()) {
LogicalPosition savedPosition = caret.getUserData(SAVED_CARET_POSITION);
if (savedPosition != null) {
int savedOffset = myEditor.logicalPositionToOffset(savedPosition);
FoldRegion[] allCollapsed = myFoldTree.fetchCollapsedAt(savedOffset);
if (allCollapsed.length == 1 && allCollapsed[0] == region) {
caret.moveToLogicalPosition(savedPosition);
}
}
}
myFoldRegionsProcessed = true;
((FoldRegionImpl) region).setExpandedInternal(true);
notifyListenersOnFoldRegionStateChange(region);
}