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/*
* Copyright 2000-2014 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 org.jetbrains.plugins.groovy.refactoring.memberPullUp;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ScrollType;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.psi.*;
import com.intellij.refactoring.HelpID;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.RefactoringBundle;
import com.intellij.refactoring.classMembers.MemberInfoBase;
import com.intellij.refactoring.lang.ElementsHandler;
import com.intellij.refactoring.ui.ConflictsDialog;
import com.intellij.refactoring.util.CommonRefactoringUtil;
import com.intellij.refactoring.util.RefactoringHierarchyUtil;
import com.intellij.util.containers.MultiMap;
import org.codehaus.groovy.runtime.DefaultGroovyMethods;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMember;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
import org.jetbrains.plugins.groovy.refactoring.classMembers.GrMemberInfo;
import org.jetbrains.plugins.groovy.refactoring.classMembers.GrMemberInfoStorage;
import java.util.ArrayList;
import java.util.List;
/**
* @author Max Medvedev
*/
public class GrPullUpHandler implements RefactoringActionHandler, GrPullUpDialog.Callback, ElementsHandler {
private static final Logger LOG = Logger.getInstance(GrPullUpHandler.class);
public static final String REFACTORING_NAME = RefactoringBundle.message("pull.members.up.title");
private PsiClass mySubclass;
private Project myProject;
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) {
int offset = editor.getCaretModel().getOffset();
editor.getScrollingModel().scrollToCaret(ScrollType.MAKE_VISIBLE);
PsiElement element = file.findElementAt(offset);
while (true) {
if (element == null || element instanceof PsiFile) {
String message = RefactoringBundle
.getCannotRefactorMessage(RefactoringBundle.message("the.caret.should.be.positioned.inside.a.class.to.pull.members.from"));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.MEMBERS_PULL_UP);
return;
}
if (!CommonRefactoringUtil.checkReadOnlyStatus(project, element)) return;
if (element instanceof GrTypeDefinition || element instanceof GrField || element instanceof GrMethod) {
invoke(project, new PsiElement[]{element}, dataContext);
return;
}
element = element.getParent();
}
}
@Override
public void invoke(@NotNull final Project project, @NotNull PsiElement[] elements, DataContext dataContext) {
if (elements.length != 1) return;
myProject = project;
PsiElement element = elements[0];
GrTypeDefinition aClass;
PsiElement aMember = null;
if (element instanceof GrTypeDefinition) {
aClass = (GrTypeDefinition)element;
}
else if (element instanceof GrMethod) {
aClass = DefaultGroovyMethods.asType(((GrMethod)element).getContainingClass(), GrTypeDefinition.class);
aMember = element;
}
else if (element instanceof GrField) {
aClass = DefaultGroovyMethods.asType(((GrField)element).getContainingClass(), GrTypeDefinition.class);
aMember = element;
}
else {
return;
}
invokeImpl(project, dataContext, aClass, aMember);
}
private void invokeImpl(Project project, DataContext dataContext, GrTypeDefinition aClass, PsiElement aMember) {
final Editor editor = dataContext != null ? CommonDataKeys.EDITOR.getData(dataContext) : null;
if (aClass == null) {
String message =
RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("is.not.supported.in.the.current.context", REFACTORING_NAME));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.MEMBERS_PULL_UP);
return;
}
ArrayList<PsiClass> bases = RefactoringHierarchyUtil.createBasesList(aClass, false, true);
if (bases.isEmpty()) {
final GrTypeDefinition containingClass = DefaultGroovyMethods.asType(aClass.getContainingClass(), GrTypeDefinition.class);
if (containingClass != null) {
invokeImpl(project, dataContext, containingClass, aClass);
return;
}
String message = RefactoringBundle.getCannotRefactorMessage(
RefactoringBundle.message("class.does.not.have.base.classes.interfaces.in.current.project", aClass.getQualifiedName()));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.MEMBERS_PULL_UP);
return;
}
mySubclass = aClass;
GrMemberInfoStorage memberInfoStorage = new GrMemberInfoStorage((GrTypeDefinition)mySubclass, new MemberInfoBase.Filter<GrMember>() {
@Override
public boolean includeMember(GrMember element) {
return true;
}
});
List<GrMemberInfo> members = memberInfoStorage.getClassMemberInfos(mySubclass);
PsiManager manager = mySubclass.getManager();
for (GrMemberInfo member : members) {
if (manager.areElementsEquivalent(member.getMember(), aMember)) {
member.setChecked(true);
break;
}
}
final GrPullUpDialog dialog = new GrPullUpDialog(project, aClass, bases, memberInfoStorage, this);
dialog.show();
}
@Override
public boolean checkConflicts(final GrPullUpDialog dialog) {
/* todo */
List<GrMemberInfo> _infos = dialog.getSelectedMemberInfos();
final GrMemberInfo[] infos = _infos.toArray(new GrMemberInfo[_infos.size()]);
final PsiClass superClass = dialog.getSuperClass();
if (!checkWritable(superClass, infos)) return false;
final MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>();
if (!ProgressManager.getInstance().runProcessWithProgressSynchronously(new Runnable() {
@Override
public void run() {
final PsiDirectory targetDirectory = superClass.getContainingFile().getContainingDirectory();
final PsiPackage targetPackage = targetDirectory != null ? JavaDirectoryService.getInstance().getPackage(targetDirectory) : null;
conflicts.putAllValues(GrPullUpConflictsUtil.checkConflicts(infos, mySubclass, superClass, targetPackage, targetDirectory, dialog.getContainmentVerifier()));
}
}, RefactoringBundle.message("detecting.possible.conflicts"), true, myProject)) {
return false;
}
if (!conflicts.isEmpty()) {
ConflictsDialog conflictsDialog = new ConflictsDialog(myProject, conflicts);
conflictsDialog.show();
final boolean ok = conflictsDialog.isOK();
if (!ok && conflictsDialog.isShowConflicts()) dialog.close(DialogWrapper.CANCEL_EXIT_CODE);
return ok;
}
return true;
}
private boolean checkWritable(PsiClass superClass, GrMemberInfo[] infos) {
if (!CommonRefactoringUtil.checkReadOnlyStatus(myProject, superClass)) return false;
for (GrMemberInfo info : infos) {
if (info.getMember() instanceof PsiClass && info.getOverrides() != null) continue;
if (!CommonRefactoringUtil.checkReadOnlyStatus(myProject, info.getMember())) return false;
}
return true;
}
@Override
public boolean isEnabledOnElements(PsiElement[] elements) {
return elements.length == 1 && elements[0] instanceof PsiClass;
}
}
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