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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.daemon.QuickFixBundle;
import com.intellij.ide.util.PsiClassListCellRenderer;
import com.intellij.ide.util.PsiElementListCellRenderer;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.popup.PopupChooserBuilder;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.refactoring.util.RefactoringUtil;
import com.intellij.ui.components.JBList;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import java.util.ArrayList;
import java.util.List;
import static com.intellij.codeInsight.daemon.impl.quickfix.CreateClassKind.CLASS;
import static com.intellij.codeInsight.daemon.impl.quickfix.CreateClassKind.INTERFACE;
/**
* @author ven
*/
public class CreateInnerClassFromUsageFix extends CreateClassFromUsageBaseFix {
public CreateInnerClassFromUsageFix(final PsiJavaCodeReferenceElement refElement, final CreateClassKind kind) {
super(kind, refElement);
}
@Override
public String getText(String varName) {
return QuickFixBundle.message("create.inner.class.from.usage.text", StringUtil.capitalize(myKind.getDescription()), varName);
}
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException {
final PsiJavaCodeReferenceElement element = getRefElement();
assert element != null;
final String superClassName = getSuperClassName(element);
PsiClass[] targets = getPossibleTargets(element);
LOG.assertTrue(targets.length > 0);
if (targets.length == 1) {
doInvoke(targets[0], superClassName);
}
else {
chooseTargetClass(targets, editor, superClassName);
}
}
@Override
public boolean isAvailable(@NotNull final Project project, final Editor editor, final PsiFile file) {
return super.isAvailable(project, editor, file) && getPossibleTargets(getRefElement()).length > 0;
}
@NotNull
private static PsiClass[] getPossibleTargets(final PsiJavaCodeReferenceElement element) {
List<PsiClass> result = new ArrayList<PsiClass>();
PsiElement run = element;
PsiMember contextMember = PsiTreeUtil.getParentOfType(run, PsiMember.class);
while (contextMember != null) {
if (contextMember instanceof PsiClass && !(contextMember instanceof PsiTypeParameter)) {
if (!isUsedInExtends(run, (PsiClass)contextMember)) {
result.add((PsiClass)contextMember);
}
}
run = contextMember;
contextMember = PsiTreeUtil.getParentOfType(run, PsiMember.class);
}
return result.isEmpty() ? PsiClass.EMPTY_ARRAY : result.toArray(new PsiClass[result.size()]);
}
private static boolean isUsedInExtends(PsiElement element, PsiClass psiClass) {
final PsiReferenceList extendsList = psiClass.getExtendsList();
final PsiReferenceList implementsList = psiClass.getImplementsList();
if (extendsList != null && PsiTreeUtil.isAncestor(extendsList, element, false)) {
return true;
}
if (implementsList != null && PsiTreeUtil.isAncestor(implementsList, element, false)) {
return true;
}
return false;
}
private void chooseTargetClass(PsiClass[] classes, final Editor editor, final String superClassName) {
final Project project = classes[0].getProject();
final JList list = new JBList(classes);
PsiElementListCellRenderer renderer = new PsiClassListCellRenderer();
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.setCellRenderer(renderer);
final PopupChooserBuilder builder = new PopupChooserBuilder(list);
renderer.installSpeedSearch(builder);
Runnable runnable = new Runnable() {
@Override
public void run() {
int index = list.getSelectedIndex();
if (index < 0) return;
final PsiClass aClass = (PsiClass)list.getSelectedValue();
CommandProcessor.getInstance().executeCommand(project, new Runnable() {
@Override
public void run() {
ApplicationManager.getApplication().runWriteAction(new Runnable() {
@Override
public void run() {
try {
doInvoke(aClass, superClassName);
}
catch (IncorrectOperationException e) {
LOG.error(e);
}
}
});
}
}, getText(), null);
}
};
builder.
setTitle(QuickFixBundle.message("target.class.chooser.title")).
setItemChoosenCallback(runnable).
createPopup().
showInBestPositionFor(editor);
}
private void doInvoke(final PsiClass aClass, final String superClassName) throws IncorrectOperationException {
PsiJavaCodeReferenceElement ref = getRefElement();
assert ref != null;
String refName = ref.getReferenceName();
LOG.assertTrue(refName != null);
PsiElementFactory elementFactory = JavaPsiFacade.getInstance(aClass.getProject()).getElementFactory();
PsiClass created = myKind == INTERFACE
? elementFactory.createInterface(refName)
: myKind == CLASS ? elementFactory.createClass(refName) : elementFactory.createEnum(refName);
final PsiModifierList modifierList = created.getModifierList();
LOG.assertTrue(modifierList != null);
if (aClass.isInterface()) {
modifierList.setModifierProperty(PsiModifier.PACKAGE_LOCAL, true);
} else {
modifierList.setModifierProperty(PsiModifier.PRIVATE, true);
}
if (RefactoringUtil.isInStaticContext(ref, aClass)) {
modifierList.setModifierProperty(PsiModifier.STATIC, true);
}
if (superClassName != null) {
PsiJavaCodeReferenceElement superClass =
elementFactory.createReferenceElementByFQClassName(superClassName, created.getResolveScope());
final PsiReferenceList extendsList = created.getExtendsList();
LOG.assertTrue(extendsList != null);
extendsList.add(superClass);
}
CreateFromUsageBaseFix.setupGenericParameters(created, ref);
created = (PsiClass)aClass.add(created);
ref.bindToElement(created);
}
}
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