private void ensurePositionCategoryInstalled(final IDocument document, LinkedModeModel model) {
if (!document.containsPositionCategory(getCategory())) {
document.addPositionCategory(getCategory());
fUpdater = new InclusivePositionUpdater(getCategory());
document.addPositionUpdater(fUpdater);
model.addLinkingListener(
new ILinkedModeListener() {
/*
* @see org.eclipse.jface.text.link.ILinkedModeListener#left(org.eclipse.jface.text.link.LinkedModeModel, int)
*/
@Override
public void left(LinkedModeModel environment, int flags) {
ensurePositionCategoryRemoved(document);
}
@Override
public void suspend(LinkedModeModel environment) {}
@Override
public void resume(LinkedModeModel environment, int flags) {}
});
}
}
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);
}
}
@Override
public void apply(final ITextViewer viewer, char trigger, int stateMask, final int offset) {
try {
fLocations = null;
Point selection = viewer.getSelectedRange();
final int secectionOffset = selection.x;
final int selectionLength = selection.y;
ASTProvider.getASTProvider()
.runOnAST(
fTranslationUnit,
ASTProvider.WAIT_ACTIVE_ONLY,
new NullProgressMonitor(),
new ASTRunnable() {
@Override
public IStatus runOnAST(ILanguage lang, IASTTranslationUnit astRoot)
throws CoreException {
if (astRoot == null) return Status.CANCEL_STATUS;
IASTNodeSelector selector = astRoot.getNodeSelector(null);
IASTName name = selector.findEnclosingName(secectionOffset, selectionLength);
if (name != null) {
fLocations = LinkedNamesFinder.findByName(astRoot, name);
}
return Status.OK_STATUS;
}
});
if (fLocations == null || fLocations.length == 0) {
return;
}
// Sort the locations starting with the one @ offset.
Arrays.sort(
fLocations,
new Comparator<IRegion>() {
@Override
public int compare(IRegion n1, IRegion n2) {
return rank(n1) - rank(n2);
}
/**
* Returns the absolute rank of a location. Location preceding {@code offset} are ranked
* last.
*
* @param location the location to compute the rank for
* @return the rank of the location with respect to the invocation offset
*/
private int rank(IRegion location) {
int relativeRank = location.getOffset() + location.getLength() - offset;
if (relativeRank < 0) {
return Integer.MAX_VALUE + relativeRank;
} else {
return relativeRank;
}
}
});
IDocument document = viewer.getDocument();
LinkedPositionGroup group = new LinkedPositionGroup();
for (int i = 0; i < fLocations.length; i++) {
IRegion item = fLocations[i];
group.addPosition(new LinkedPosition(document, item.getOffset(), item.getLength(), i));
}
LinkedModeModel model = new LinkedModeModel();
model.addGroup(group);
model.forceInstall();
CEditor editor = getCEditor();
if (editor != null) {
model.addLinkingListener(new EditorHighlightingSynchronizer(editor));
}
LinkedModeUI ui = new EditorLinkedModeUI(model, viewer);
ui.setExitPolicy(new DeleteBlockingExitPolicy(document));
ui.setExitPosition(viewer, offset, 0, LinkedPositionGroup.NO_STOP);
ui.enter();
if (fValueSuggestion != null) {
document.replace(fLocations[0].getOffset(), fLocations[0].getLength(), fValueSuggestion);
IRegion selectedRegion = ui.getSelectedRegion();
selection = new Point(selectedRegion.getOffset(), fValueSuggestion.length());
}
viewer.setSelectedRange(
selection.x, selection.y); // By default full word is selected, restore original selection
} catch (BadLocationException e) {
CUIPlugin.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);
}
}
/** @see org.eclipse.swt.custom.VerifyKeyListener#verifyKey(org.eclipse.swt.events.VerifyEvent) */
public void verifyKey(VerifyEvent event) {
// early pruning to slow down normal typing as little as possible
if (!event.doit || !isAutoInsertEnabled() || !isAutoInsertCharacter(event.character)) {
return;
}
IDocument document = textViewer.getDocument();
final Point selection = textViewer.getSelectedRange();
final int offset = selection.x;
final int length = selection.y;
try {
String scope = getScopeAtOffset(document, offset);
if (fgCommentSelector.matches(scope)) {
return;
}
if (length > 0) {
wrapSelection(event, document, offset, length);
return;
}
// Don't auto-close if next char is a letter or digit
if (document.getLength() > offset) {
char nextChar = document.getChar(offset);
if (Character.isJavaIdentifierPart(nextChar)) {
return;
}
}
// Don't auto-close if we have an open pair!
if (isUnclosedPair(
event, document, offset)) // We have an open string or pair, just insert the single
// character, don't do anything special
{
return;
}
final char closingCharacter = getPeerCharacter(event.character);
// If this is the start char and there's no unmatched close char, insert the close char
if (unpairedClose(event.character, closingCharacter, document, offset)) {
return;
}
final StringBuffer buffer = new StringBuffer();
buffer.append(event.character);
buffer.append(closingCharacter);
if (offset == document.getLength()) {
String delim = null;
if (document instanceof IDocumentExtension4) {
delim = ((IDocumentExtension4) document).getDefaultLineDelimiter();
}
if (delim == null) {
delim = System.getProperty("line.separator", "\r\n"); // $NON-NLS-1$ //$NON-NLS-2$
}
buffer.append(delim);
}
document.replace(offset, length, buffer.toString());
BracketLevel level = new BracketLevel();
fBracketLevelStack.push(level);
LinkedPositionGroup group = new LinkedPositionGroup();
group.addPosition(new LinkedPosition(document, offset + 1, 0, LinkedPositionGroup.NO_STOP));
LinkedModeModel model = new LinkedModeModel();
model.addLinkingListener(this);
model.addGroup(group);
model.forceInstall();
// set up position tracking for our magic peers
if (fBracketLevelStack.size() == 1) {
document.addPositionCategory(CATEGORY);
document.addPositionUpdater(fUpdater);
}
level.fFirstPosition = new Position(offset, 1);
level.fSecondPosition = new Position(offset + 1, 1);
document.addPosition(CATEGORY, level.fFirstPosition);
document.addPosition(CATEGORY, level.fSecondPosition);
level.fUI = new EditorLinkedModeUI(model, textViewer);
level.fUI.setSimpleMode(true);
level.fUI.setExitPolicy(
new ExitPolicy(
textViewer,
closingCharacter,
getEscapeCharacter(closingCharacter),
fBracketLevelStack));
level.fUI.setExitPosition(textViewer, offset + 2, 0, Integer.MAX_VALUE);
level.fUI.setCyclingMode(LinkedModeUI.CYCLE_NEVER);
level.fUI.enter();
IRegion newSelection = level.fUI.getSelectedRegion();
textViewer.setSelectedRange(newSelection.getOffset(), newSelection.getLength());
event.doit = false;
} catch (BadLocationException e) {
CommonEditorPlugin.logError(e);
} catch (BadPositionCategoryException e) {
CommonEditorPlugin.logError(e);
}
}
/*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#apply(org.eclipse.jface.text.ITextViewer, char, int, int)
*/
@Override
public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) {
IDocument document = viewer.getDocument();
try {
fContext.setReadOnly(false);
int start;
TemplateBuffer templateBuffer;
try {
beginCompoundChange(viewer);
int oldReplaceOffset = getReplaceOffset();
try {
// this may already modify the document (e.g. add imports)
templateBuffer = fContext.evaluate(fTemplate);
} catch (TemplateException e1) {
fSelectedRegion = fRegion;
return;
}
start = getReplaceOffset();
int shift = start - oldReplaceOffset;
int end = Math.max(getReplaceEndOffset(), offset + shift);
// insert template string
if (end > document.getLength()) end = offset;
String templateString = templateBuffer.getString();
document.replace(start, end - start, templateString);
} finally {
endCompoundChange(viewer);
}
// translate positions
LinkedModeModel model = new LinkedModeModel();
TemplateVariable[] variables = templateBuffer.getVariables();
MultiVariableGuess guess =
fContext instanceof CompilationUnitContext
? ((CompilationUnitContext) fContext).getMultiVariableGuess()
: null;
boolean hasPositions = false;
for (int i = 0; i != variables.length; i++) {
TemplateVariable variable = variables[i];
if (variable.isUnambiguous()) continue;
LinkedPositionGroup group = new LinkedPositionGroup();
int[] offsets = variable.getOffsets();
int length = variable.getLength();
LinkedPosition first;
if (guess != null && variable instanceof MultiVariable) {
first =
new VariablePosition(
document, offsets[0] + start, length, guess, (MultiVariable) variable);
guess.addSlave((VariablePosition) first);
} else {
String[] values = variable.getValues();
ICompletionProposal[] proposals = new ICompletionProposal[values.length];
for (int j = 0; j < values.length; j++) {
ensurePositionCategoryInstalled(document, model);
Position pos = new Position(offsets[0] + start, length);
document.addPosition(getCategory(), pos);
proposals[j] = new PositionBasedCompletionProposal(values[j], pos, length);
}
if (proposals.length > 1)
first = new ProposalPosition(document, offsets[0] + start, length, proposals);
else first = new LinkedPosition(document, offsets[0] + start, length);
}
for (int j = 0; j != offsets.length; j++)
if (j == 0) group.addPosition(first);
else group.addPosition(new LinkedPosition(document, offsets[j] + start, length));
model.addGroup(group);
hasPositions = true;
}
if (hasPositions) {
model.forceInstall();
JavaEditor editor = getJavaEditor();
if (editor != null) {
model.addLinkingListener(new EditorHighlightingSynchronizer(editor));
}
LinkedModeUI ui = new EditorLinkedModeUI(model, viewer);
ui.setExitPosition(viewer, getCaretOffset(templateBuffer) + start, 0, Integer.MAX_VALUE);
ui.enter();
fSelectedRegion = ui.getSelectedRegion();
} else {
fSelectedRegion = new Region(getCaretOffset(templateBuffer) + start, 0);
}
} catch (BadLocationException e) {
JavaPlugin.log(e);
openErrorDialog(viewer.getTextWidget().getShell(), e);
fSelectedRegion = fRegion;
} catch (BadPositionCategoryException e) {
JavaPlugin.log(e);
openErrorDialog(viewer.getTextWidget().getShell(), e);
fSelectedRegion = fRegion;
}
}