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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.codeInsight.daemon.impl.quickfix;
import com.intellij.codeInsight.FileModificationService;
import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInsight.generation.*;
import com.intellij.codeInsight.intention.impl.BaseIntentionAction;
import com.intellij.ide.util.MemberChooser;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.command.undo.UndoUtil;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ScrollType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.CodeStyleManager;
import com.intellij.psi.codeStyle.JavaCodeStyleManager;
import com.intellij.psi.javadoc.PsiDocComment;
import com.intellij.psi.util.PsiUtil;
import com.intellij.psi.util.TypeConversionUtil;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.List;
/**
* @author ven
*/
public class CreateConstructorMatchingSuperFix extends BaseIntentionAction {
private static final Logger LOG = Logger.getInstance("com.intellij.codeInsight.daemon.impl.quickfix.CreateConstructorMatchingSuperFix");
private final PsiClass myClass;
public CreateConstructorMatchingSuperFix(PsiClass aClass) {
myClass = aClass;
}
@Override
@NotNull
public String getFamilyName() {
return QuickFixBundle.message("create.constructor.matching.super");
}
@Override
public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
if (!myClass.isValid() || !myClass.getManager().isInProject(myClass)) return false;
setText(QuickFixBundle.message("create.constructor.matching.super"));
return true;
}
@Override
public void invoke(@NotNull final Project project, final Editor editor, PsiFile file) {
if (!FileModificationService.getInstance().prepareFileForWrite(myClass.getContainingFile())) return;
PsiClass baseClass = myClass.getSuperClass();
LOG.assertTrue(baseClass != null);
PsiSubstitutor substitutor = TypeConversionUtil.getSuperClassSubstitutor(baseClass, myClass, PsiSubstitutor.EMPTY);
List<PsiMethodMember> baseConstructors = new ArrayList<PsiMethodMember>();
PsiMethod[] baseConstrs = baseClass.getConstructors();
for (PsiMethod baseConstr : baseConstrs) {
if (PsiUtil.isAccessible(baseConstr, myClass, myClass)) baseConstructors.add(new PsiMethodMember(baseConstr, substitutor));
}
chooseConstructor2Delegate(project, editor, substitutor, baseConstructors, baseConstrs, myClass);
}
public static void chooseConstructor2Delegate(final Project project,
final Editor editor,
PsiSubstitutor substitutor,
List<PsiMethodMember> baseConstructors,
PsiMethod[] baseConstrs,
final PsiClass targetClass) {
PsiMethodMember[] constructors = baseConstructors.toArray(new PsiMethodMember[baseConstructors.size()]);
if (constructors.length == 0) {
constructors = new PsiMethodMember[baseConstrs.length];
for (int i = 0; i < baseConstrs.length; i++) {
constructors[i] = new PsiMethodMember(baseConstrs[i], substitutor);
}
}
LOG.assertTrue(constructors.length >=1); // Otherwise we won't have been messing with all this stuff
boolean isCopyJavadoc = true;
if (constructors.length > 1 && !ApplicationManager.getApplication().isUnitTestMode()) {
MemberChooser<PsiMethodMember> chooser = new MemberChooser<PsiMethodMember>(constructors, false, true, project);
chooser.setTitle(QuickFixBundle.message("super.class.constructors.chooser.title"));
chooser.show();
if (chooser.getExitCode() != DialogWrapper.OK_EXIT_CODE) return;
constructors = chooser.getSelectedElements(new PsiMethodMember[0]);
isCopyJavadoc = chooser.isCopyJavadoc();
}
final PsiMethodMember[] constructors1 = constructors;
final boolean isCopyJavadoc1 = isCopyJavadoc;
ApplicationManager.getApplication().runWriteAction (
new Runnable() {
@Override
public void run() {
try {
if (targetClass.getLBrace() == null) {
PsiClass psiClass = JavaPsiFacade.getInstance(targetClass.getProject()).getElementFactory().createClass("X");
targetClass.addRangeAfter(psiClass.getLBrace(), psiClass.getRBrace(), targetClass.getLastChild());
}
JVMElementFactory factory = JVMElementFactories.getFactory(targetClass.getLanguage(), project);
CodeStyleManager formatter = CodeStyleManager.getInstance(project);
PsiMethod derived = null;
for (PsiMethodMember candidate : constructors1) {
PsiMethod base = candidate.getElement();
derived = GenerateMembersUtil.substituteGenericMethod(base, candidate.getSubstitutor(), targetClass);
if (!isCopyJavadoc1) {
final PsiDocComment docComment = derived.getDocComment();
if (docComment != null) {
docComment.delete();
}
}
final String targetClassName = targetClass.getName();
LOG.assertTrue(targetClassName != null, targetClass);
derived.setName(targetClassName);
ConstructorBodyGenerator generator = ConstructorBodyGenerator.INSTANCE.forLanguage(derived.getLanguage());
if (generator != null) {
StringBuilder buffer = new StringBuilder();
generator.start(buffer, derived.getName(), PsiParameter.EMPTY_ARRAY);
generator.generateSuperCallIfNeeded(buffer, derived.getParameterList().getParameters());
generator.finish(buffer);
PsiMethod stub = factory.createMethodFromText(buffer.toString(), targetClass);
derived.getBody().replace(stub.getBody());
}
derived = (PsiMethod)formatter.reformat(derived);
derived = (PsiMethod)JavaCodeStyleManager.getInstance(project).shortenClassReferences(derived);
PsiGenerationInfo<PsiMethod> info = OverrideImplementUtil.createGenerationInfo(derived);
info.insert(targetClass, null, true);
derived = info.getPsiMember();
}
if (derived != null) {
editor.getCaretModel().moveToOffset(derived.getTextRange().getStartOffset());
editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
}
}
catch (IncorrectOperationException e) {
LOG.error(e);
}
UndoUtil.markPsiFileForUndo(targetClass.getContainingFile());
}
}
);
}
@Override
public boolean startInWriteAction() {
return false;
}
}
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