private void linkedModeLeft() {
fgActiveLinkedMode = null;
if (fInfoPopup != null) {
fInfoPopup.close();
}
ISourceViewer viewer = fEditor.getViewer();
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
registry.unregister(fFocusEditingSupport);
}
}
private void restoreFullSelection() {
if (fOriginalSelection.y != 0) {
int originalOffset = fOriginalSelection.x;
LinkedPosition[] positions = fLinkedPositionGroup.getPositions();
for (int i = 0; i < positions.length; i++) {
LinkedPosition position = positions[i];
if (!position.isDeleted() && position.includes(originalOffset)) {
fEditor.getViewer().setSelectedRange(position.offset, position.length);
return;
}
}
}
}
private Point computeWordStart() {
ITextSelection selection = (ITextSelection) fEditor.getSelectionProvider().getSelection();
IRegion textRegion =
DartWordFinder.findWord(fEditor.getViewer().getDocument(), selection.getOffset());
if (textRegion == null) {
return null;
}
IRegion widgetRegion = modelRange2WidgetRange(textRegion);
if (widgetRegion == null) {
return null;
}
int start = widgetRegion.getOffset();
StyledText styledText = fEditor.getViewer().getTextWidget();
Point result = styledText.getLocationAtOffset(start);
result.y += styledText.getLineHeight(start);
if (!styledText.getClientArea().contains(result)) {
return null;
}
return result;
}
private IRegion modelRange2WidgetRange(IRegion region) {
ISourceViewer viewer = fEditor.getViewer();
if (viewer instanceof ITextViewerExtension5) {
ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
return extension.modelRange2WidgetRange(region);
}
IRegion visibleRegion = viewer.getVisibleRegion();
int start = region.getOffset() - visibleRegion.getOffset();
int end = start + region.getLength();
if (end > visibleRegion.getLength()) {
end = visibleRegion.getLength();
}
return new Region(start, end - start);
}
private RenameSupport undoAndCreateRenameSupport(String newName) throws CoreException {
// Assumption: the linked mode model should be shut down by now.
final ISourceViewer viewer = fEditor.getViewer();
try {
if (!fOriginalName.equals(newName)) {
IWorkbenchWindow workbenchWindow = fEditor.getSite().getWorkbenchWindow();
// undo
workbenchWindow.run(
false,
true,
new IRunnableWithProgress() {
@Override
public void run(IProgressMonitor monitor)
throws InvocationTargetException, InterruptedException {
if (viewer instanceof ITextViewerExtension6) {
IUndoManager undoManager = ((ITextViewerExtension6) viewer).getUndoManager();
if (undoManager instanceof IUndoManagerExtension) {
IUndoManagerExtension undoManagerExtension =
(IUndoManagerExtension) undoManager;
IUndoContext undoContext = undoManagerExtension.getUndoContext();
IOperationHistory operationHistory =
OperationHistoryFactory.getOperationHistory();
while (undoManager.undoable()) {
if (fStartingUndoOperation != null
&& fStartingUndoOperation.equals(
operationHistory.getUndoOperation(undoContext))) {
return;
}
undoManager.undo();
}
}
}
}
});
// wait for analysis
IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
progressService.busyCursorWhile(
new IRunnableWithProgress() {
@Override
public void run(IProgressMonitor monitor)
throws InvocationTargetException, InterruptedException {
monitor.beginTask("Waiting for background analysis...", IProgressMonitor.UNKNOWN);
try {
RefactoringUtils.waitResolvedCompilationUnit(fEditor, monitor);
RefactoringUtils.waitReadyForRefactoring(monitor);
} finally {
monitor.done();
}
}
});
// by some reason "busyCursorWhile" looses focus, so restore it
fEditor.setFocus();
// get new Element, after background build finished
prepareElement();
if (fDartElement == null) {
return null;
}
}
} catch (InvocationTargetException e) {
throw new CoreException(
new Status(
IStatus.ERROR,
DartToolsPlugin.getPluginId(),
ReorgMessages.RenameLinkedMode_error_saving_editor,
e));
} catch (InterruptedException e) {
// canceling is OK
return null;
}
viewer.setSelectedRange(fOriginalSelection.x, fOriginalSelection.y);
if (newName.length() == 0) {
return null;
}
return RenameSupport.create(fDartElement, newName);
}
void doRename(boolean showPreview) {
cancel();
Image image = null;
Label label = null;
fShowPreview |= showPreview;
try {
ISourceViewer viewer = fEditor.getViewer();
if (viewer instanceof SourceViewer) {
SourceViewer sourceViewer = (SourceViewer) viewer;
Control viewerControl = sourceViewer.getControl();
if (viewerControl instanceof Composite) {
Composite composite = (Composite) viewerControl;
Display display = composite.getDisplay();
// Flush pending redraw requests:
while (!display.isDisposed() && display.readAndDispatch()) {}
// Copy editor area:
GC gc = new GC(composite);
Point size;
try {
size = composite.getSize();
image = new Image(gc.getDevice(), size.x, size.y);
gc.copyArea(image, 0, 0);
} finally {
gc.dispose();
gc = null;
}
// Persist editor area while executing refactoring:
label = new Label(composite, SWT.NONE);
label.setImage(image);
label.setBounds(0, 0, size.x, size.y);
label.moveAbove(null);
}
}
String newName = fNamePosition.getContent();
if (fOriginalName.equals(newName)) {
return;
}
RenameSupport renameSupport = undoAndCreateRenameSupport(newName);
if (renameSupport == null) {
return;
}
Shell shell = fEditor.getSite().getShell();
if (renameSupport.hasUnresolvedNameReferences()) {
fShowPreview = true;
}
boolean executed;
if (fShowPreview) { // could have been updated by undoAndCreateRenameSupport(..)
executed = renameSupport.openDialog(shell, true);
} else {
renameSupport.perform(shell, fEditor.getSite().getWorkbenchWindow());
executed = true;
}
if (executed) {
restoreFullSelection();
}
} catch (CoreException ex) {
DartToolsPlugin.log(ex);
} catch (InterruptedException ex) {
// canceling is OK -> redo text changes in that case?
} catch (InvocationTargetException ex) {
DartToolsPlugin.log(ex);
} catch (BadLocationException e) {
DartToolsPlugin.log(e);
} finally {
if (label != null) {
label.dispose();
}
if (image != null) {
image.dispose();
}
}
}
public void start() {
if (getActiveLinkedMode() != null) {
// for safety; should already be handled in RenameDartElementAction
fgActiveLinkedMode.startFullDialog();
return;
}
ISourceViewer viewer = fEditor.getViewer();
IDocument document = viewer.getDocument();
fOriginalSelection = viewer.getSelectedRange();
int offset = fOriginalSelection.x;
try {
fLinkedPositionGroup = new LinkedPositionGroup();
prepareElement();
if (fDartElement == null) {
return;
}
if (viewer instanceof ITextViewerExtension6) {
IUndoManager undoManager = ((ITextViewerExtension6) viewer).getUndoManager();
if (undoManager instanceof IUndoManagerExtension) {
IUndoManagerExtension undoManagerExtension = (IUndoManagerExtension) undoManager;
IUndoContext undoContext = undoManagerExtension.getUndoContext();
IOperationHistory operationHistory = OperationHistoryFactory.getOperationHistory();
fStartingUndoOperation = operationHistory.getUndoOperation(undoContext);
}
}
fOriginalName = nameNode.getName();
final int pos = nameNode.getOffset();
final List<ASTNode> sameNodes = Lists.newArrayList();
nameNode
.getRoot()
.accept(
new RecursiveASTVisitor<Void>() {
@Override
public Void visitSimpleIdentifier(SimpleIdentifier node) {
Element element = node.getElement();
element = getCanonicalElement(element);
if (Objects.equal(element, fDartElement)) {
sameNodes.add(node);
}
return super.visitSimpleIdentifier(node);
}
});
// TODO: copied from LinkedNamesAssistProposal#apply(..):
// sort for iteration order, starting with the node @ offset
Collections.sort(
sameNodes,
new Comparator<ASTNode>() {
@Override
public int compare(ASTNode o1, ASTNode o2) {
return rank(o1) - rank(o2);
}
/**
* Returns the absolute rank of an <code>ASTNode</code>. Nodes preceding <code>pos
* </code> are ranked last.
*
* @param node the node to compute the rank for
* @return the rank of the node with respect to the invocation offset
*/
private int rank(ASTNode node) {
int relativeRank = node.getOffset() + node.getLength() - pos;
if (relativeRank < 0) {
return Integer.MAX_VALUE + relativeRank;
} else {
return relativeRank;
}
}
});
for (int i = 0; i < sameNodes.size(); i++) {
ASTNode elem = sameNodes.get(i);
LinkedPosition linkedPosition =
new LinkedPosition(document, elem.getOffset(), elem.getLength(), i);
if (i == 0) {
fNamePosition = linkedPosition;
}
fLinkedPositionGroup.addPosition(linkedPosition);
}
fLinkedModeModel = new LinkedModeModel();
fLinkedModeModel.addGroup(fLinkedPositionGroup);
fLinkedModeModel.forceInstall();
fLinkedModeModel.addLinkingListener(new EditorHighlightingSynchronizer(fEditor));
fLinkedModeModel.addLinkingListener(new EditorSynchronizer());
LinkedModeUI ui = new EditorLinkedModeUI(fLinkedModeModel, viewer);
ui.setExitPosition(viewer, offset, 0, Integer.MAX_VALUE);
ui.setExitPolicy(new ExitPolicy(document));
ui.enter();
viewer.setSelectedRange(
fOriginalSelection.x,
fOriginalSelection.y); // by default, full word is selected; restore original selection
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
registry.register(fFocusEditingSupport);
}
openSecondaryPopup();
// startAnimation();
fgActiveLinkedMode = this;
} catch (BadLocationException e) {
DartToolsPlugin.log(e);
}
}
protected Point computeMenuLocation(StyledText text) {
if (fEditor == null || text != fEditor.getViewer().getTextWidget()) {
return null;
}
return computeWordStart();
}
