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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.annotator.intentions;
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.psi.*;
import com.intellij.ui.components.JBList;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.GroovyBundle;
import org.jetbrains.plugins.groovy.intentions.base.Intention;
import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression;
import org.jetbrains.plugins.groovy.lang.psi.util.GrStaticChecker;
import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil;
import javax.swing.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* @author Max Medvedev
*/
public abstract class GrCreateFromUsageBaseFix extends Intention {
protected final SmartPsiElementPointer<GrReferenceExpression> myRefExpression;
public GrCreateFromUsageBaseFix(@NotNull GrReferenceExpression refExpression) {
myRefExpression = SmartPointerManager.getInstance(refExpression.getProject()).createSmartPsiElementPointer(refExpression);
}
@Override
@NotNull
public String getFamilyName() {
return GroovyBundle.message("create.from.usage.family.name");
}
protected GrReferenceExpression getRefExpr() {
return myRefExpression.getElement();
}
@Override
public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
final GrReferenceExpression element = myRefExpression.getElement();
if (element == null || !element.isValid()) {
return false;
}
List<PsiClass> targetClasses = getTargetClasses();
return !targetClasses.isEmpty();
}
@Override
public boolean startInWriteAction() {
return true;
}
@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException {
final List<PsiClass> classes = getTargetClasses();
if (classes.size() == 1) {
invokeImpl(project, classes.get(0));
}
else if (!classes.isEmpty()) {
chooseClass(classes, editor);
}
}
@NotNull
@Override
protected PsiElementPredicate getElementPredicate() {
return new PsiElementPredicate() {
@Override
public boolean satisfiedBy(PsiElement element) {
return element instanceof GrReferenceExpression;
}
};
}
private void chooseClass(List<PsiClass> classes, Editor editor) {
final Project project = classes.get(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() {
invokeImpl(project, aClass);
}
});
}
}, getText(), null);
}
};
builder.
setTitle(QuickFixBundle.message("target.class.chooser.title")).
setItemChoosenCallback(runnable).
createPopup().
showInBestPositionFor(editor);
}
protected abstract void invokeImpl(Project project, @NotNull PsiClass targetClass);
private List<PsiClass> getTargetClasses() {
final GrReferenceExpression ref = getRefExpr();
final boolean compileStatic = PsiUtil.isCompileStatic(ref) || GrStaticChecker.isPropertyAccessInStaticMethod(ref);
final PsiClass targetClass = QuickfixUtil.findTargetClass(ref, compileStatic);
if (targetClass == null || !canBeTargetClass(targetClass)) return Collections.emptyList();
final ArrayList<PsiClass> classes = new ArrayList<PsiClass>();
collectSupers(targetClass, classes);
return classes;
}
private void collectSupers(PsiClass psiClass, ArrayList<PsiClass> classes) {
classes.add(psiClass);
final PsiClass[] supers = psiClass.getSupers();
for (PsiClass aSuper : supers) {
if (classes.contains(aSuper)) continue;
if (canBeTargetClass(aSuper)) {
collectSupers(aSuper, classes);
}
}
}
protected boolean canBeTargetClass(PsiClass psiClass) {
return psiClass.getManager().isInProject(psiClass);
}
}
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