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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.
*/
/*
* Created by IntelliJ IDEA.
* User: dsl
* Date: 06.08.2002
* Time: 17:17:27
* To change template for new class use
* Code Style | Class Templates options (Tools | IDE Options).
*/
package com.intellij.refactoring.inheritanceToDelegation;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
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.psi.*;
import com.intellij.psi.impl.source.jsp.jspJava.JspClass;
import com.intellij.refactoring.HelpID;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.RefactoringBundle;
import com.intellij.refactoring.util.CommonRefactoringUtil;
import com.intellij.refactoring.util.RefactoringHierarchyUtil;
import com.intellij.refactoring.util.RefactoringMessageUtil;
import com.intellij.refactoring.util.classMembers.MemberInfo;
import com.intellij.refactoring.util.classMembers.MemberInfoStorage;
import com.intellij.util.containers.HashMap;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class InheritanceToDelegationHandler implements RefactoringActionHandler {
private static final Logger LOG = Logger.getInstance("#com.intellij.refactoring.inheritanceToDelegation.InheritanceToDelegationHandler");
public static final String REFACTORING_NAME = RefactoringBundle.message("replace.inheritance.with.delegation.title");
private static final MemberInfo.Filter<PsiMember> MEMBER_INFO_FILTER = new MemberInfo.Filter<PsiMember>() {
public boolean includeMember(PsiMember element) {
if (element instanceof PsiMethod) {
final PsiMethod method = (PsiMethod)element;
return !method.hasModifierProperty(PsiModifier.STATIC)
&& !method.hasModifierProperty(PsiModifier.PRIVATE);
}
else if (element instanceof PsiClass && ((PsiClass)element).isInterface()) {
return true;
}
return false;
}
};
public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) {
editor.getScrollingModel().scrollToCaret(ScrollType.MAKE_VISIBLE);
int offset = editor.getCaretModel().getOffset();
PsiElement element = file.findElementAt(offset);
while (true) {
if (element == null || element instanceof PsiFile) {
String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("error.wrong.caret.position.class"));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INHERITANCE_TO_DELEGATION);
return;
}
if (element instanceof PsiClass && !(element instanceof PsiAnonymousClass)) {
invoke(project, new PsiElement[]{element}, dataContext);
return;
}
element = element.getParent();
}
}
public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext dataContext) {
if (elements.length != 1) return;
final PsiClass aClass = (PsiClass)elements[0];
Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
if (aClass.isInterface()) {
String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("class.is.interface", aClass.getQualifiedName()));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INHERITANCE_TO_DELEGATION);
return;
}
if (aClass instanceof JspClass) {
RefactoringMessageUtil.showNotSupportedForJspClassesError(project, editor, REFACTORING_NAME, HelpID.INHERITANCE_TO_DELEGATION);
return;
}
if (!CommonRefactoringUtil.checkReadOnlyStatus(project, aClass)) return;
final PsiClass[] bases = aClass.getSupers();
@NonNls final String javaLangObject = CommonClassNames.JAVA_LANG_OBJECT;
if (bases.length == 0 || bases.length == 1 && javaLangObject.equals(bases[0].getQualifiedName())) {
String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("class.does.not.have.base.classes.or.interfaces", aClass.getQualifiedName()));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INHERITANCE_TO_DELEGATION);
return;
}
final HashMap<PsiClass, Collection<MemberInfo>> basesToMemberInfos = new HashMap<PsiClass, Collection<MemberInfo>>();
for (PsiClass base : bases) {
basesToMemberInfos.put(base, createBaseClassMemberInfos(base));
}
new InheritanceToDelegationDialog(project, aClass,
bases, basesToMemberInfos).show();
}
private static List<MemberInfo> createBaseClassMemberInfos(PsiClass baseClass) {
final PsiClass deepestBase = RefactoringHierarchyUtil.getDeepestNonObjectBase(baseClass);
LOG.assertTrue(deepestBase != null);
final MemberInfoStorage memberInfoStorage = new MemberInfoStorage(baseClass, MEMBER_INFO_FILTER);
ArrayList<MemberInfo> memberInfoList = new ArrayList<MemberInfo>(memberInfoStorage.getClassMemberInfos(deepestBase));
List<MemberInfo> memberInfos = memberInfoStorage.getIntermediateMemberInfosList(deepestBase);
for (final MemberInfo memberInfo : memberInfos) {
memberInfoList.add(memberInfo);
}
return memberInfoList;
}
}
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