Examples with OccurrencesChooser com.intellij.refactoring.introduce.inplace.OccurrencesChooser used on opensource projects

Example 1 with OccurrencesChooser

use of com.intellij.refactoring.introduce.inplace.OccurrencesChooser in project intellij-community by JetBrains.

the class IntroduceVariableBase method invokeImpl.

protected boolean invokeImpl(final Project project, final PsiExpression expr, final Editor editor) {
    if (expr != null) {
        final String errorMessage = getErrorMessage(expr);
        if (errorMessage != null) {
            showErrorMessage(project, editor, RefactoringBundle.getCannotRefactorMessage(errorMessage));
            return false;
        }
    }
    if (expr != null && expr.getParent() instanceof PsiExpressionStatement) {
        FeatureUsageTracker.getInstance().triggerFeatureUsed("refactoring.introduceVariable.incompleteStatement");
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("expression:" + expr);
    }
    if (expr == null || !expr.isPhysical()) {
        if (ReassignVariableUtil.reassign(editor))
            return false;
        if (expr == null) {
            String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("selected.block.should.represent.an.expression"));
            showErrorMessage(project, editor, message);
            return false;
        }
    }
    final PsiType originalType = RefactoringUtil.getTypeByExpressionWithExpectedType(expr);
    if (originalType == null || LambdaUtil.notInferredType(originalType)) {
        String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("unknown.expression.type"));
        showErrorMessage(project, editor, message);
        return false;
    }
    if (PsiType.VOID.equals(originalType)) {
        String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("selected.expression.has.void.type"));
        showErrorMessage(project, editor, message);
        return false;
    }
    final PsiElement physicalElement = expr.getUserData(ElementToWorkOn.PARENT);
    final PsiElement anchorStatement = RefactoringUtil.getParentStatement(physicalElement != null ? physicalElement : expr, false);
    if (anchorStatement == null) {
        return parentStatementNotFound(project, editor);
    }
    if (checkAnchorBeforeThisOrSuper(project, editor, anchorStatement, REFACTORING_NAME, HelpID.INTRODUCE_VARIABLE))
        return false;
    final PsiElement tempContainer = anchorStatement.getParent();
    if (!(tempContainer instanceof PsiCodeBlock) && !RefactoringUtil.isLoopOrIf(tempContainer) && !(tempContainer instanceof PsiLambdaExpression) && (tempContainer.getParent() instanceof PsiLambdaExpression)) {
        String message = RefactoringBundle.message("refactoring.is.not.supported.in.the.current.context", REFACTORING_NAME);
        showErrorMessage(project, editor, message);
        return false;
    }
    if (!NotInSuperCallOccurrenceFilter.INSTANCE.isOK(expr)) {
        String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("cannot.introduce.variable.in.super.constructor.call"));
        showErrorMessage(project, editor, message);
        return false;
    }
    final PsiFile file = anchorStatement.getContainingFile();
    LOG.assertTrue(file != null, "expr.getContainingFile() == null");
    final PsiElement nameSuggestionContext = editor == null ? null : file.findElementAt(editor.getCaretModel().getOffset());
    final RefactoringSupportProvider supportProvider = LanguageRefactoringSupport.INSTANCE.forLanguage(expr.getLanguage());
    final boolean isInplaceAvailableOnDataContext = supportProvider != null && editor.getSettings().isVariableInplaceRenameEnabled() && supportProvider.isInplaceIntroduceAvailable(expr, nameSuggestionContext) && (!ApplicationManager.getApplication().isUnitTestMode() || isInplaceAvailableInTestMode()) && !isInJspHolderMethod(expr);
    if (isInplaceAvailableOnDataContext) {
        final MultiMap<PsiElement, String> conflicts = new MultiMap<>();
        checkInLoopCondition(expr, conflicts);
        if (!conflicts.isEmpty()) {
            showErrorMessage(project, editor, StringUtil.join(conflicts.values(), "<br>"));
            return false;
        }
    }
    final ExpressionOccurrenceManager occurrenceManager = createOccurrenceManager(expr, tempContainer);
    final PsiExpression[] occurrences = occurrenceManager.getOccurrences();
    final PsiElement anchorStatementIfAll = occurrenceManager.getAnchorStatementForAll();
    OccurrencesInfo occurrencesInfo = new OccurrencesInfo(occurrences);
    if (!CommonRefactoringUtil.checkReadOnlyStatus(project, file))
        return false;
    final LinkedHashMap<JavaReplaceChoice, List<PsiExpression>> occurrencesMap = occurrencesInfo.buildOccurrencesMap(expr);
    final boolean inFinalContext = occurrenceManager.isInFinalContext();
    final InputValidator validator = new InputValidator(this, project, anchorStatementIfAll, anchorStatement, occurrenceManager);
    final TypeSelectorManagerImpl typeSelectorManager = new TypeSelectorManagerImpl(project, originalType, expr, occurrences);
    final boolean[] wasSucceed = new boolean[] { true };
    final Pass<JavaReplaceChoice> callback = new Pass<JavaReplaceChoice>() {

        @Override
        public void pass(final JavaReplaceChoice choice) {
            boolean hasWriteAccess = occurrencesInfo.myHasWriteAccess;
            List<PsiExpression> nonWrite = occurrencesInfo.myNonWrite;
            if (choice != null) {
                final boolean noWriteChoice = choice == JavaReplaceChoice.NO_WRITE;
                final boolean allChoice = choice.isAll();
                final boolean replaceAll = allChoice || noWriteChoice;
                typeSelectorManager.setAllOccurrences(replaceAll);
                final PsiElement chosenAnchor = chooseAnchor(replaceAll, noWriteChoice, nonWrite, anchorStatementIfAll, anchorStatement);
                final IntroduceVariableSettings settings = getSettings(project, editor, expr, occurrences, typeSelectorManager, inFinalContext, hasWriteAccess, validator, chosenAnchor, choice);
                final boolean cantChangeFinalModifier = (hasWriteAccess || inFinalContext) && allChoice;
                PsiExpression[] allOccurrences = Arrays.stream(occurrences).filter(occurrence -> !(expr.equals(occurrence) && expr.getParent() instanceof PsiExpressionStatement)).filter(occurrence -> allChoice || (noWriteChoice && !PsiUtil.isAccessedForWriting(occurrence)) || expr.equals(occurrence)).toArray(PsiExpression[]::new);
                if (choice.isChain()) {
                    myInplaceIntroducer = new ChainCallInplaceIntroducer(project, settings, chosenAnchor, editor, expr, allOccurrences, typeSelectorManager, REFACTORING_NAME);
                } else {
                    myInplaceIntroducer = new JavaVariableInplaceIntroducer(project, settings, chosenAnchor, editor, expr, cantChangeFinalModifier, allOccurrences, typeSelectorManager, REFACTORING_NAME);
                }
                if (myInplaceIntroducer.startInplaceIntroduceTemplate()) {
                    return;
                }
            }
            CommandProcessor.getInstance().executeCommand(project, () -> {
                if (!anchorStatement.isValid()) {
                    return;
                }
                final Editor topLevelEditor;
                if (!InjectedLanguageManager.getInstance(project).isInjectedFragment(anchorStatement.getContainingFile())) {
                    topLevelEditor = InjectedLanguageUtil.getTopLevelEditor(editor);
                } else {
                    topLevelEditor = editor;
                }
                PsiVariable variable = null;
                try {
                    final IntroduceVariableSettings settings = getSettings(project, topLevelEditor, expr, occurrences, typeSelectorManager, inFinalContext, hasWriteAccess, validator, anchorStatement, choice);
                    if (!settings.isOK()) {
                        wasSucceed[0] = false;
                        return;
                    }
                    final RefactoringEventData beforeData = new RefactoringEventData();
                    beforeData.addElement(expr);
                    project.getMessageBus().syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC).refactoringStarted(REFACTORING_ID, beforeData);
                    final PsiElement chosenAnchor = chooseAnchor(settings.isReplaceAllOccurrences(), hasWriteAccess, nonWrite, anchorStatementIfAll, anchorStatement);
                    variable = introduce(project, expr, topLevelEditor, chosenAnchor, occurrences, settings);
                } finally {
                    final RefactoringEventData afterData = new RefactoringEventData();
                    afterData.addElement(variable);
                    project.getMessageBus().syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC).refactoringDone(REFACTORING_ID, afterData);
                }
            }, REFACTORING_NAME, null);
        }
    };
    if (!isInplaceAvailableOnDataContext) {
        callback.pass(null);
    } else {
        JavaReplaceChoice choice = getOccurrencesChoice();
        if (choice != null) {
            callback.pass(choice);
        } else {
            String title = occurrencesInfo.myChainMethodName != null && occurrences.length == 1 ? "Lambda chain detected" : OccurrencesChooser.DEFAULT_CHOOSER_TITLE;
            OccurrencesChooser.<PsiExpression>simpleChooser(editor).showChooser(callback, occurrencesMap, title);
        }
    }
    return wasSucceed[0];
}