private CompletionInitializationContext runContributorsBeforeCompletion(
Editor editor, PsiFile psiFile, int invocationCount, Caret caret) {
final Ref<CompletionContributor> current = Ref.create(null);
CompletionInitializationContext context =
new CompletionInitializationContext(
editor, caret, psiFile, myCompletionType, invocationCount) {
CompletionContributor dummyIdentifierChanger;
@Override
public void setDummyIdentifier(@NotNull String dummyIdentifier) {
super.setDummyIdentifier(dummyIdentifier);
if (dummyIdentifierChanger != null) {
LOG.error(
"Changing the dummy identifier twice, already changed by "
+ dummyIdentifierChanger);
}
dummyIdentifierChanger = current.get();
}
};
List<CompletionContributor> contributors =
CompletionContributor.forLanguage(context.getPositionLanguage());
Project project = psiFile.getProject();
List<CompletionContributor> filteredContributors =
DumbService.getInstance(project).filterByDumbAwareness(contributors);
for (final CompletionContributor contributor : filteredContributors) {
current.set(contributor);
contributor.beforeCompletion(context);
CompletionAssertions.checkEditorValid(editor);
assert !PsiDocumentManager.getInstance(project).isUncommited(editor.getDocument())
: "Contributor " + contributor + " left the document uncommitted";
}
return context;
}
private static OffsetMap translateOffsetMapToHost(
CompletionInitializationContext initContext,
PsiFile context,
PsiFile hostFile,
Editor hostEditor) {
final InjectedLanguageManager injectedLanguageManager =
InjectedLanguageManager.getInstance(hostFile.getProject());
final OffsetMap hostMap = new OffsetMap(hostEditor.getDocument());
final OffsetMap original = initContext.getOffsetMap();
for (final OffsetKey key : original.getAllOffsets()) {
hostMap.addOffset(
key, injectedLanguageManager.injectedToHost(context, original.getOffset(key)));
}
return hostMap;
}
void duringCompletion(CompletionInitializationContext initContext) {
if (isAutopopupCompletion()) {
if (shouldFocusLookup(myParameters)) {
myLookup.setFocused(true);
} else if (FeatureUsageTracker.getInstance()
.isToBeAdvertisedInLookup(
CodeCompletionFeatures.EDITING_COMPLETION_CONTROL_ENTER, getProject())) {
myLookup.addAdvertisement(
"Press "
+ CompletionContributor.getActionShortcut(
IdeActions.ACTION_CHOOSE_LOOKUP_ITEM_ALWAYS)
+ " to choose the first suggestion");
}
if (!myEditor.isOneLineMode()
&& FeatureUsageTracker.getInstance()
.isToBeAdvertisedInLookup(
CodeCompletionFeatures.EDITING_COMPLETION_CONTROL_ARROWS, getProject())) {
myLookup.addAdvertisement(
CompletionContributor.getActionShortcut(IdeActions.ACTION_LOOKUP_DOWN)
+ " and "
+ CompletionContributor.getActionShortcut(IdeActions.ACTION_LOOKUP_UP)
+ " will move caret down and up in the editor");
}
}
ProgressManager.checkCanceled();
if (!initContext
.getOffsetMap()
.wasModified(CompletionInitializationContext.IDENTIFIER_END_OFFSET)) {
try {
final int selectionEndOffset = initContext.getSelectionEndOffset();
final PsiReference reference = initContext.getFile().findReferenceAt(selectionEndOffset);
if (reference != null) {
initContext.setReplacementOffset(findReplacementOffset(selectionEndOffset, reference));
}
} catch (IndexNotReadyException ignored) {
}
}
for (CompletionContributor contributor :
CompletionContributor.forLanguage(initContext.getPositionLanguage())) {
ProgressManager.checkCanceled();
if (DumbService.getInstance(initContext.getProject()).isDumb()
&& !DumbService.isDumbAware(contributor)) {
continue;
}
contributor.duringCompletion(initContext);
}
}
@Override
public void beforeCompletion(@NotNull final CompletionInitializationContext context) {
final PsiFile file = context.getFile();
if (file instanceof PsiJavaFile) {
JavaCompletionUtil.initOffsets(file, context.getOffsetMap());
autoImport(file, context.getStartOffset() - 1, context.getEditor());
if (context.getCompletionType() == CompletionType.BASIC) {
if (semicolonNeeded(context.getEditor(), file, context.getStartOffset())) {
context.setDummyIdentifier(CompletionInitializationContext.DUMMY_IDENTIFIER.trim() + ";");
return;
}
final PsiJavaCodeReferenceElement ref =
PsiTreeUtil.findElementOfClassAtOffset(
file, context.getStartOffset(), PsiJavaCodeReferenceElement.class, false);
if (ref != null && !(ref instanceof PsiReferenceExpression)) {
if (ref.getParent() instanceof PsiTypeElement) {
context.setDummyIdentifier(
CompletionInitializationContext.DUMMY_IDENTIFIER.trim() + ";");
}
if (JavaSmartCompletionContributor.AFTER_NEW.accepts(ref)) {
final PsiReferenceParameterList paramList = ref.getParameterList();
if (paramList != null && paramList.getTextLength() > 0) {
context
.getOffsetMap()
.addOffset(
ConstructorInsertHandler.PARAM_LIST_START,
paramList.getTextRange().getStartOffset());
context
.getOffsetMap()
.addOffset(
ConstructorInsertHandler.PARAM_LIST_END,
paramList.getTextRange().getEndOffset());
}
}
return;
}
final PsiElement element = file.findElementAt(context.getStartOffset());
if (psiElement().inside(PsiAnnotation.class).accepts(element)) {
return;
}
context.setDummyIdentifier(CompletionInitializationContext.DUMMY_IDENTIFIER_TRIMMED);
}
}
}
private static CompletionAssertions.WatchingInsertionContext insertItemHonorBlockSelection(
final CompletionProgressIndicator indicator,
final LookupElement item,
final char completionChar,
final List<LookupElement> items,
final CompletionLookupArranger.StatisticsUpdate update) {
final Editor editor = indicator.getEditor();
final int caretOffset = editor.getCaretModel().getOffset();
int idEndOffset = indicator.getIdentifierEndOffset();
if (idEndOffset < 0) {
idEndOffset = CompletionInitializationContext.calcDefaultIdentifierEnd(editor, caretOffset);
}
final int idEndOffsetDelta = idEndOffset - caretOffset;
CompletionAssertions.WatchingInsertionContext context = null;
if (editor.getSelectionModel().hasBlockSelection()
&& editor.getSelectionModel().getBlockSelectionEnds().length > 0) {
List<RangeMarker> insertionPoints = new ArrayList<RangeMarker>();
int idDelta = 0;
Document document = editor.getDocument();
int caretLine = document.getLineNumber(editor.getCaretModel().getOffset());
for (int point : editor.getSelectionModel().getBlockSelectionEnds()) {
insertionPoints.add(document.createRangeMarker(point, point));
if (document.getLineNumber(point) == document.getLineNumber(idEndOffset)) {
idDelta = idEndOffset - point;
}
}
List<RangeMarker> caretsAfter = new ArrayList<RangeMarker>();
for (RangeMarker marker : insertionPoints) {
if (marker.isValid()) {
int insertionPoint = marker.getStartOffset();
context =
insertItem(
indicator,
item,
completionChar,
items,
update,
editor,
indicator.getParameters().getOriginalFile(),
insertionPoint,
idDelta + insertionPoint);
int offset = editor.getCaretModel().getOffset();
caretsAfter.add(document.createRangeMarker(offset, offset));
}
}
assert context != null;
restoreBlockSelection(editor, caretsAfter, caretLine);
for (RangeMarker insertionPoint : insertionPoints) {
insertionPoint.dispose();
}
for (RangeMarker marker : caretsAfter) {
marker.dispose();
}
} else if (editor.getCaretModel().supportsMultipleCarets()) {
final List<CompletionAssertions.WatchingInsertionContext> contexts =
new ArrayList<CompletionAssertions.WatchingInsertionContext>();
final Editor hostEditor = InjectedLanguageUtil.getTopLevelEditor(editor);
hostEditor
.getCaretModel()
.runForEachCaret(
new CaretAction() {
@Override
public void perform(Caret caret) {
PsiFile hostFile =
InjectedLanguageUtil.getTopLevelFile(
indicator.getParameters().getOriginalFile());
PsiFile targetFile =
InjectedLanguageUtil.findInjectedPsiNoCommit(hostFile, caret.getOffset());
Editor targetEditor =
InjectedLanguageUtil.getInjectedEditorForInjectedFile(hostEditor, targetFile);
int targetCaretOffset = targetEditor.getCaretModel().getOffset();
CompletionAssertions.WatchingInsertionContext currentContext =
insertItem(
indicator,
item,
completionChar,
items,
update,
targetEditor,
targetFile == null ? hostFile : targetFile,
targetCaretOffset,
targetCaretOffset + idEndOffsetDelta);
contexts.add(currentContext);
}
},
true);
context = contexts.get(contexts.size() - 1);
if (context.shouldAddCompletionChar()
&& context.getCompletionChar() != Lookup.COMPLETE_STATEMENT_SELECT_CHAR) {
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
DataContext dataContext =
DataManager.getInstance().getDataContext(editor.getContentComponent());
EditorActionManager.getInstance()
.getTypedAction()
.getHandler()
.execute(editor, completionChar, dataContext);
}
});
}
for (CompletionAssertions.WatchingInsertionContext insertionContext : contexts) {
insertionContext.stopWatching();
}
} else {
context =
insertItem(
indicator,
item,
completionChar,
items,
update,
editor,
indicator.getParameters().getOriginalFile(),
caretOffset,
idEndOffset);
}
return context;
}
private void insertDummyIdentifier(
final CompletionInitializationContext initContext,
final boolean hasModifiers,
final int invocationCount) {
final PsiFile originalFile = initContext.getFile();
InjectedLanguageManager manager =
InjectedLanguageManager.getInstance(originalFile.getProject());
final PsiFile hostFile = manager.getTopLevelFile(originalFile);
final Editor hostEditor = InjectedLanguageUtil.getTopLevelEditor(initContext.getEditor());
final OffsetMap hostMap =
translateOffsetMapToHost(initContext, originalFile, hostFile, hostEditor);
final PsiFile[] hostCopy = {null};
DocumentUtil.writeInRunUndoTransparentAction(
new Runnable() {
@Override
public void run() {
hostCopy[0] =
createFileCopy(
hostFile, initContext.getStartOffset(), initContext.getSelectionEndOffset());
}
});
final Document copyDocument = hostCopy[0].getViewProvider().getDocument();
assert copyDocument != null : "no document";
final OffsetTranslator translator =
new OffsetTranslator(hostEditor.getDocument(), initContext.getFile(), copyDocument);
CompletionAssertions.checkEditorValid(initContext.getEditor());
CommandProcessor.getInstance()
.runUndoTransparentAction(
new Runnable() {
@Override
public void run() {
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
String dummyIdentifier = initContext.getDummyIdentifier();
if (StringUtil.isEmpty(dummyIdentifier)) return;
int startOffset =
hostMap.getOffset(CompletionInitializationContext.START_OFFSET);
int endOffset =
hostMap.getOffset(
CompletionInitializationContext.SELECTION_END_OFFSET);
copyDocument.replaceString(startOffset, endOffset, dummyIdentifier);
}
});
}
});
CompletionAssertions.checkEditorValid(initContext.getEditor());
final Project project = originalFile.getProject();
if (!synchronous) {
if (CompletionServiceImpl.isPhase(CompletionPhase.NoCompletion.getClass())
|| !CompletionServiceImpl.assertPhase(CompletionPhase.CommittingDocuments.class)) {
Disposer.dispose(translator);
return;
}
final CompletionPhase.CommittingDocuments phase =
(CompletionPhase.CommittingDocuments) CompletionServiceImpl.getCompletionPhase();
CompletionAutoPopupHandler.runLaterWithCommitted(
project,
copyDocument,
new Runnable() {
@Override
public void run() {
if (phase.checkExpired()) {
Disposer.dispose(translator);
return;
}
doComplete(
initContext, hasModifiers, invocationCount, hostCopy[0], hostMap, translator);
}
});
} else {
PsiDocumentManager.getInstance(project).commitDocument(copyDocument);
doComplete(initContext, hasModifiers, invocationCount, hostCopy[0], hostMap, translator);
}
}
private void doComplete(
CompletionInitializationContext initContext,
boolean hasModifiers,
int invocationCount,
PsiFile hostCopy,
OffsetMap hostMap,
OffsetTranslator translator) {
final Editor editor = initContext.getEditor();
CompletionAssertions.checkEditorValid(editor);
CompletionContext context =
createCompletionContext(
hostCopy,
hostMap.getOffset(CompletionInitializationContext.START_OFFSET),
hostMap,
initContext.getFile());
LookupImpl lookup = obtainLookup(editor);
CompletionParameters parameters = createCompletionParameters(invocationCount, context, editor);
CompletionPhase phase = CompletionServiceImpl.getCompletionPhase();
if (phase instanceof CompletionPhase.CommittingDocuments) {
if (phase.indicator != null) {
phase.indicator.closeAndFinish(false);
}
((CompletionPhase.CommittingDocuments) phase).replaced = true;
} else {
CompletionServiceImpl.assertPhase(CompletionPhase.NoCompletion.getClass());
}
final Semaphore freezeSemaphore = new Semaphore();
freezeSemaphore.down();
final CompletionProgressIndicator indicator =
new CompletionProgressIndicator(
editor,
parameters,
this,
freezeSemaphore,
initContext.getOffsetMap(),
hasModifiers,
lookup);
Disposer.register(indicator, hostMap);
Disposer.register(indicator, context.getOffsetMap());
Disposer.register(indicator, translator);
CompletionServiceImpl.setCompletionPhase(
synchronous
? new CompletionPhase.Synchronous(indicator)
: new CompletionPhase.BgCalculation(indicator));
final AtomicReference<LookupElement[]> data = indicator.startCompletion(initContext);
if (!synchronous) {
return;
}
if (freezeSemaphore.waitFor(2000)) {
final LookupElement[] allItems = data.get();
if (allItems != null
&& !indicator.isRunning()
&& !indicator
.isCanceled()) { // the completion is really finished, now we may auto-insert or show
// lookup
completionFinished(
initContext.getStartOffset(),
initContext.getSelectionEndOffset(),
indicator,
allItems,
hasModifiers);
checkNotSync(indicator, allItems);
return;
}
}
CompletionServiceImpl.setCompletionPhase(new CompletionPhase.BgCalculation(indicator));
indicator.showLookup();
}
private static CompletionAssertions.WatchingInsertionContext insertItemHonorBlockSelection(
final CompletionProgressIndicator indicator,
final LookupElement item,
final char completionChar,
final List<LookupElement> items,
final CompletionLookupArranger.StatisticsUpdate update) {
final Editor editor = indicator.getEditor();
final int caretOffset = editor.getCaretModel().getOffset();
int idEndOffset = indicator.getIdentifierEndOffset();
if (idEndOffset < 0) {
idEndOffset = CompletionInitializationContext.calcDefaultIdentifierEnd(editor, caretOffset);
}
final int idEndOffsetDelta = idEndOffset - caretOffset;
CompletionAssertions.WatchingInsertionContext context = null;
if (editor.getSelectionModel().hasBlockSelection()
&& editor.getSelectionModel().getBlockSelectionEnds().length > 0) {
List<RangeMarker> insertionPoints = new ArrayList<RangeMarker>();
int idDelta = 0;
Document document = editor.getDocument();
int caretLine = document.getLineNumber(editor.getCaretModel().getOffset());
for (int point : editor.getSelectionModel().getBlockSelectionEnds()) {
insertionPoints.add(document.createRangeMarker(point, point));
if (document.getLineNumber(point) == document.getLineNumber(idEndOffset)) {
idDelta = idEndOffset - point;
}
}
List<RangeMarker> caretsAfter = new ArrayList<RangeMarker>();
for (RangeMarker marker : insertionPoints) {
if (marker.isValid()) {
int insertionPoint = marker.getStartOffset();
context =
insertItem(
indicator,
item,
completionChar,
items,
update,
editor,
insertionPoint,
idDelta + insertionPoint);
int offset = editor.getCaretModel().getOffset();
caretsAfter.add(document.createRangeMarker(offset, offset));
}
}
assert context != null;
restoreBlockSelection(editor, caretsAfter, caretLine);
for (RangeMarker insertionPoint : insertionPoints) {
insertionPoint.dispose();
}
for (RangeMarker marker : caretsAfter) {
marker.dispose();
}
} else {
final Ref<CompletionAssertions.WatchingInsertionContext> contextRef =
new Ref<CompletionAssertions.WatchingInsertionContext>();
editor
.getCaretModel()
.runForEachCaret(
new CaretAction() {
@Override
public void perform(Caret caret) {
CompletionAssertions.WatchingInsertionContext currentContext =
insertItem(
indicator,
item,
completionChar,
items,
update,
editor,
caret.getOffset(),
caret.getOffset() + idEndOffsetDelta);
if (caret
.getVisualPosition()
.equals(editor.getCaretModel().getPrimaryCaret().getVisualPosition())) {
contextRef.set(currentContext);
}
}
});
context = contextRef.get();
}
return context;
}
private static CompletionAssertions.WatchingInsertionContext insertItemHonorBlockSelection(
CompletionProgressIndicator indicator,
LookupElement item,
char completionChar,
List<LookupElement> items,
CompletionLookupArranger.StatisticsUpdate update) {
final Editor editor = indicator.getEditor();
final int caretOffset = editor.getCaretModel().getOffset();
int idEndOffset = indicator.getIdentifierEndOffset();
if (idEndOffset < 0) {
idEndOffset = CompletionInitializationContext.calcDefaultIdentifierEnd(editor, caretOffset);
}
CompletionAssertions.WatchingInsertionContext context = null;
if (editor.getSelectionModel().hasBlockSelection()
&& editor.getSelectionModel().getBlockSelectionEnds().length > 0) {
List<RangeMarker> insertionPoints = new ArrayList<RangeMarker>();
int idDelta = 0;
Document document = editor.getDocument();
int caretLine = document.getLineNumber(editor.getCaretModel().getOffset());
for (int point : editor.getSelectionModel().getBlockSelectionEnds()) {
insertionPoints.add(document.createRangeMarker(point, point));
if (document.getLineNumber(point) == document.getLineNumber(idEndOffset)) {
idDelta = idEndOffset - point;
}
}
List<RangeMarker> caretsAfter = new ArrayList<RangeMarker>();
for (RangeMarker marker : insertionPoints) {
if (marker.isValid()) {
int insertionPoint = marker.getStartOffset();
context =
insertItem(
indicator,
item,
completionChar,
items,
update,
editor,
insertionPoint,
idDelta + insertionPoint);
int offset = editor.getCaretModel().getOffset();
caretsAfter.add(document.createRangeMarker(offset, offset));
}
}
assert context != null;
restoreBlockSelection(editor, caretsAfter, caretLine);
for (RangeMarker insertionPoint : insertionPoints) {
insertionPoint.dispose();
}
for (RangeMarker marker : caretsAfter) {
marker.dispose();
}
} else {
context =
insertItem(
indicator, item, completionChar, items, update, editor, caretOffset, idEndOffset);
}
return context;
}