private void deregisterHelper(IEditingSupport helper) {
if (fEditor == null) return;
ISourceViewer viewer = fEditor.getViewer();
if (viewer instanceof IEditingSupportRegistry) {
IEditingSupportRegistry registry = (IEditingSupportRegistry) viewer;
registry.unregister(helper);
}
}
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 static void applyProposal(
ICompletionProposal proposal,
ITextViewer viewer,
char trigger,
int stateMask,
final int offset) {
Assert.isTrue(proposal instanceof ICompletionProposalExtension2);
IRewriteTarget target = null;
IEditingSupportRegistry registry = null;
IEditingSupport helper =
new IEditingSupport() {
public boolean isOriginator(DocumentEvent event, IRegion focus) {
return focus.getOffset() <= offset && focus.getOffset() + focus.getLength() >= offset;
}
public boolean ownsFocusShell() {
return false;
}
};
try {
IDocument document = viewer.getDocument();
if (viewer instanceof ITextViewerExtension) {
ITextViewerExtension extension = (ITextViewerExtension) viewer;
target = extension.getRewriteTarget();
}
if (target != null) target.beginCompoundChange();
if (viewer instanceof IEditingSupportRegistry) {
registry = (IEditingSupportRegistry) viewer;
registry.register(helper);
}
((ICompletionProposalExtension2) proposal).apply(viewer, trigger, stateMask, offset);
Point selection = proposal.getSelection(document);
if (selection != null) {
viewer.setSelectedRange(selection.x, selection.y);
viewer.revealRange(selection.x, selection.y);
}
} finally {
if (target != null) target.endCompoundChange();
if (registry != null) registry.unregister(helper);
}
}
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);
}
}
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 {
DartUnit root =
ASTProvider.getASTProvider().getAST(getCompilationUnit(), ASTProvider.WAIT_YES, null);
fLinkedPositionGroup = new LinkedPositionGroup();
DartNode selectedNode = NodeFinder.perform(root, fOriginalSelection.x, fOriginalSelection.y);
if (!(selectedNode instanceof DartIdentifier)) {
return; // TODO: show dialog
}
DartIdentifier nameNode = (DartIdentifier) selectedNode;
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.getSourceInfo().getOffset();
DartNode[] sameNodes = LinkedNodeFinder.findByNode(root, nameNode);
// TODO: copied from LinkedNamesAssistProposal#apply(..):
// sort for iteration order, starting with the node @ offset
Arrays.sort(
sameNodes,
new Comparator<DartNode>() {
@Override
public int compare(DartNode o1, DartNode o2) {
return rank(o1) - rank(o2);
}
/**
* Returns the absolute rank of an <code>DartNode</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(DartNode node) {
int relativeRank =
node.getSourceInfo().getOffset() + node.getSourceInfo().getLength() - pos;
if (relativeRank < 0) {
return Integer.MAX_VALUE + relativeRank;
} else {
return relativeRank;
}
}
});
for (int i = 0; i < sameNodes.length; i++) {
DartNode elem = sameNodes[i];
LinkedPosition linkedPosition =
new LinkedPosition(
document, elem.getSourceInfo().getOffset(), elem.getSourceInfo().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);
}
}