private static void beginCompoundChange(ITextViewer viewer) {
if (viewer instanceof ITextViewerExtension) {
ITextViewerExtension extension = (ITextViewerExtension) viewer;
IRewriteTarget target = extension.getRewriteTarget();
target.beginCompoundChange();
}
}
private void doPasteWithImportsOperation() {
ITextEditor editor = getTextEditor();
IJavaElement inputElement = JavaUI.getEditorInputTypeRoot(editor.getEditorInput());
Clipboard clipboard = new Clipboard(getDisplay());
try {
ClipboardData importsData = (ClipboardData) clipboard.getContents(fgTransferInstance);
if (importsData != null
&& inputElement instanceof ICompilationUnit
&& !importsData.isFromSame(inputElement)) {
// combine operation and adding of imports
IRewriteTarget target = (IRewriteTarget) editor.getAdapter(IRewriteTarget.class);
if (target != null) {
target.beginCompoundChange();
}
try {
fOperationTarget.doOperation(fOperationCode);
addImports((ICompilationUnit) inputElement, importsData);
} catch (CoreException e) {
JavaPlugin.log(e);
} finally {
if (target != null) {
target.endCompoundChange();
}
}
} else {
fOperationTarget.doOperation(fOperationCode);
}
} finally {
clipboard.dispose();
}
}
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);
}
}
/**
* 執行Quick Fix變更
*
* @param activeEditor
* @param document
* @throws CoreException
*/
private void performChange(IEditorPart activeEditor, IDocument document, ASTRewrite rewrite)
throws CoreException {
Change change = null;
IRewriteTarget rewriteTarget = null;
try {
change = getChange(actRoot, rewrite);
if (change != null) {
if (document != null) {
LinkedModeModel.closeAllModels(document);
}
if (activeEditor != null) {
rewriteTarget = (IRewriteTarget) activeEditor.getAdapter(IRewriteTarget.class);
if (rewriteTarget != null) {
rewriteTarget.beginCompoundChange();
}
}
change.initializeValidationData(new NullProgressMonitor());
RefactoringStatus valid = change.isValid(new NullProgressMonitor());
if (valid.hasFatalError()) {
IStatus status =
new Status(
IStatus.ERROR,
JavaPlugin.getPluginId(),
IStatus.ERROR,
valid.getMessageMatchingSeverity(RefactoringStatus.FATAL),
null);
throw new CoreException(status);
} else {
IUndoManager manager = RefactoringCore.getUndoManager();
manager.aboutToPerformChange(change);
Change undoChange = change.perform(new NullProgressMonitor());
manager.changePerformed(change, true);
if (undoChange != null) {
undoChange.initializeValidationData(new NullProgressMonitor());
manager.addUndo("Quick Undo", undoChange);
}
}
}
} finally {
if (rewriteTarget != null) {
rewriteTarget.endCompoundChange();
}
if (change != null) {
change.dispose();
}
}
}
private void run(Shell shell, IType type) throws CoreException {
final OverrideMethodDialog dialog = new OverrideMethodDialog(shell, fEditor, type, false);
if (!dialog.hasMethodsToOverride()) {
MessageDialog.openInformation(
shell, getDialogTitle(), ActionMessages.OverrideMethodsAction_error_nothing_found);
notifyResult(false);
return;
}
if (dialog.open() != Window.OK) {
notifyResult(false);
return;
}
final Object[] selected = dialog.getResult();
if (selected == null) {
notifyResult(false);
return;
}
ArrayList<IMethodBinding> methods = new ArrayList<IMethodBinding>();
for (int i = 0; i < selected.length; i++) {
Object elem = selected[i];
if (elem instanceof IMethodBinding) {
methods.add((IMethodBinding) elem);
}
}
IMethodBinding[] methodToOverride = methods.toArray(new IMethodBinding[methods.size()]);
final IEditorPart editor = JavaUI.openInEditor(type.getCompilationUnit());
final IRewriteTarget target =
editor != null ? (IRewriteTarget) editor.getAdapter(IRewriteTarget.class) : null;
if (target != null) target.beginCompoundChange();
try {
CompilationUnit astRoot = dialog.getCompilationUnit();
final ITypeBinding typeBinding = ASTNodes.getTypeBinding(astRoot, type);
int insertPos = dialog.getInsertOffset();
AddUnimplementedMethodsOperation operation =
(AddUnimplementedMethodsOperation)
createRunnable(
astRoot, typeBinding, methodToOverride, insertPos, dialog.getGenerateComment());
IRunnableContext context = JavaPlugin.getActiveWorkbenchWindow();
if (context == null) context = new BusyIndicatorRunnableContext();
PlatformUI.getWorkbench()
.getProgressService()
.runInUI(
context,
new WorkbenchRunnableAdapter(operation, operation.getSchedulingRule()),
operation.getSchedulingRule());
final String[] created = operation.getCreatedMethods();
if (created == null || created.length == 0)
MessageDialog.openInformation(
shell, getDialogTitle(), ActionMessages.OverrideMethodsAction_error_nothing_found);
} catch (InvocationTargetException exception) {
ExceptionHandler.handle(exception, shell, getDialogTitle(), null);
} catch (InterruptedException exception) {
// Do nothing. Operation has been canceled by user.
} finally {
if (target != null) target.endCompoundChange();
}
notifyResult(true);
}
/*
* @see ITextOperationTarget#doOperation(int)
*/
public void doOperation(int operation) {
if (getTextWidget() == null || (!redraws() && operation != FORMAT)) return;
switch (operation) {
case CONTENTASSIST_PROPOSALS:
fContentAssistant.showPossibleCompletions();
return;
case CONTENTASSIST_CONTEXT_INFORMATION:
fContentAssistant.showContextInformation();
return;
case QUICK_ASSIST:
// FIXME: must find a way to post to the status line
/* String msg= */ fQuickAssistAssistant.showPossibleQuickAssists();
// setStatusLineErrorMessage(msg);
return;
case INFORMATION:
fInformationPresenter.showInformation();
return;
case FORMAT:
{
final Point selection = rememberSelection();
final IRewriteTarget target = getRewriteTarget();
final IDocument document = getDocument();
IFormattingContext context = null;
DocumentRewriteSession rewriteSession = null;
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
DocumentRewriteSessionType type =
(selection.y == 0 && document.getLength() > 1000) || selection.y > 1000
? DocumentRewriteSessionType.SEQUENTIAL
: DocumentRewriteSessionType.UNRESTRICTED_SMALL;
rewriteSession = extension.startRewriteSession(type);
} else {
setRedraw(false);
target.beginCompoundChange();
}
try {
final String rememberedContents = document.get();
try {
if (fContentFormatter instanceof IContentFormatterExtension) {
final IContentFormatterExtension extension =
(IContentFormatterExtension) fContentFormatter;
context = createFormattingContext();
if (selection.y == 0) {
context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
} else {
context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
context.setProperty(
FormattingContextProperties.CONTEXT_REGION,
new Region(selection.x, selection.y));
}
extension.format(document, context);
} else {
IRegion r;
if (selection.y == 0) {
IRegion coverage = getModelCoverage();
r = coverage == null ? new Region(0, 0) : coverage;
} else {
r = new Region(selection.x, selection.y);
}
fContentFormatter.format(document, r);
}
updateSlaveDocuments(document);
} catch (RuntimeException x) {
// fire wall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
// if something went wrong we undo the changes we just did
// TODO to be removed after 3.0 M8
document.set(rememberedContents);
throw x;
}
} finally {
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
extension.stopRewriteSession(rewriteSession);
} else {
target.endCompoundChange();
setRedraw(true);
}
restoreSelection();
if (context != null) context.dispose();
}
return;
}
default:
super.doOperation(operation);
}
}
/**
* Note: This method is for internal use only. Clients should not call this method.
*
* @param cu The compilation unit to process
*/
public void run(ICompilationUnit cu) {
if (!ElementValidator.check(
cu, getShell(), ActionMessages.OrganizeImportsAction_error_title, fEditor != null)) return;
if (!ActionUtil.isProcessable(getShell(), cu)) return;
IEditingSupport helper = createViewerHelper();
try {
CodeGenerationSettings settings =
JavaPreferencesSettings.getCodeGenerationSettings(cu.getJavaProject());
if (fEditor == null && EditorUtility.isOpenInEditor(cu) == null) {
IEditorPart editor = EditorUtility.openInEditor(cu);
if (editor instanceof JavaEditor) {
fEditor = (JavaEditor) editor;
}
}
CompilationUnit astRoot =
JavaPlugin.getDefault().getASTProvider().getAST(cu, ASTProvider.WAIT_ACTIVE_ONLY, null);
AJOrganizeImportsOperation op =
new AJOrganizeImportsOperation(
cu,
astRoot,
settings.importIgnoreLowercase,
!cu.isWorkingCopy(),
true,
createChooseImportQuery());
IRewriteTarget target = null;
if (fEditor != null) {
target = (IRewriteTarget) fEditor.getAdapter(IRewriteTarget.class);
if (target != null) {
target.beginCompoundChange();
}
}
IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
IRunnableContext context = getSite().getWorkbenchWindow();
if (context == null) {
context = progressService;
}
try {
registerHelper(helper);
progressService.runInUI(
context, new WorkbenchRunnableAdapter(op, op.getScheduleRule()), op.getScheduleRule());
IProblem parseError = op.getParseError();
if (parseError != null) {
String message =
Messages.format(
ActionMessages.OrganizeImportsAction_single_error_parse, parseError.getMessage());
MessageDialog.openInformation(
getShell(), ActionMessages.OrganizeImportsAction_error_title, message);
if (fEditor != null && parseError.getSourceStart() != -1) {
fEditor.selectAndReveal(
parseError.getSourceStart(),
parseError.getSourceEnd() - parseError.getSourceStart() + 1);
}
} else {
if (fEditor != null) {
setStatusBarMessage(getOrganizeInfo(op));
}
}
} catch (InvocationTargetException e) {
ExceptionHandler.handle(
e,
getShell(),
ActionMessages.OrganizeImportsAction_error_title,
ActionMessages.OrganizeImportsAction_error_message);
} catch (InterruptedException e) {
} finally {
deregisterHelper(helper);
if (target != null) {
target.endCompoundChange();
}
}
} catch (CoreException e) {
ExceptionHandler.handle(
e,
getShell(),
ActionMessages.OrganizeImportsAction_error_title,
ActionMessages.OrganizeImportsAction_error_message);
}
}