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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.codeInsight.navigation.actions;
import com.intellij.codeInsight.CodeInsightBundle;
import com.intellij.codeInsight.navigation.GotoTargetHandler;
import com.intellij.codeInsight.navigation.actions.GotoSuperAction;
import com.intellij.lang.LanguageCodeInsightActionHandler;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.util.PsiSuperMethodUtil;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.GroovyBundle;
import org.jetbrains.plugins.groovy.GroovyFileType;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrAccessorMethod;
import org.jetbrains.plugins.groovy.lang.psi.util.GroovyPropertyUtils;
import java.util.*;
/**
* @author Medvedev Max
*/
public class GroovyGotoSuperHandler extends GotoTargetHandler implements LanguageCodeInsightActionHandler {
private static final Logger LOG = Logger.getInstance(GroovyGotoSuperHandler.class);
@Override
protected String getFeatureUsedKey() {
return GotoSuperAction.FEATURE_ID;
}
@Override
protected GotoData getSourceAndTargetElements(Editor editor, PsiFile file) {
final PsiMember e = findSource(editor, file);
if (e == null) return null;
return new GotoData(e, findTargets(e), Collections.<AdditionalAction>emptyList());
}
@NotNull
@Override
protected String getChooserTitle(PsiElement sourceElement, String name, int length) {
return CodeInsightBundle.message("goto.super.method.chooser.title");
}
@NotNull
@Override
protected String getFindUsagesTitle(PsiElement sourceElement, String name, int length) {
return CodeInsightBundle.message("goto.super.method.findUsages.title", name);
}
@NotNull
@Override
protected String getNotFoundMessage(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) {
final PsiMember source = findSource(editor, file);
if (source instanceof PsiClass) {
return GroovyBundle.message("no.super.classes.found");
}
else if (source instanceof PsiMethod || source instanceof GrField) {
return GroovyBundle.message("no.super.method.found");
}
else {
throw new IncorrectOperationException("incorrect element is found: " + (source == null ? "null" : source.getClass().getCanonicalName()));
}
}
@Nullable
private static PsiMember findSource(Editor editor, PsiFile file) {
PsiElement element = file.findElementAt(editor.getCaretModel().getOffset());
if (element == null) return null;
return PsiTreeUtil.getParentOfType(element, PsiMethod.class, GrField.class, PsiClass.class);
}
@NotNull
private static PsiElement[] findTargets(@NotNull PsiMember e) {
if (e instanceof PsiClass) {
PsiClass aClass = (PsiClass)e;
List<PsiClass> allSupers = new ArrayList<PsiClass>(Arrays.asList(aClass.getSupers()));
for (Iterator<PsiClass> iterator = allSupers.iterator(); iterator.hasNext(); ) {
PsiClass superClass = iterator.next();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(superClass.getQualifiedName())) iterator.remove();
}
return ContainerUtil.toArray(allSupers, new PsiClass[allSupers.size()]);
}
else if (e instanceof PsiMethod) {
return getSupers((PsiMethod)e);
}
else {
LOG.assertTrue(e instanceof GrField);
List<PsiMethod> supers = new ArrayList<PsiMethod>();
for (GrAccessorMethod method : GroovyPropertyUtils.getFieldAccessors((GrField)e)) {
supers.addAll(Arrays.asList(getSupers(method)));
}
return ContainerUtil.toArray(supers, new PsiMethod[supers.size()]);
}
}
@Override
public boolean startInWriteAction() {
return false;
}
@NotNull
private static PsiMethod[] getSupers(PsiMethod method) {
if (method.isConstructor()) {
PsiMethod constructorInSuper = PsiSuperMethodUtil.findConstructorInSuper(method);
if (constructorInSuper != null) {
return new PsiMethod[]{constructorInSuper};
}
}
else {
return method.findSuperMethods(false);
}
return PsiMethod.EMPTY_ARRAY;
}
@Override
public boolean isValidFor(Editor editor, PsiFile file) {
return file != null && GroovyFileType.GROOVY_FILE_TYPE.equals(file.getFileType());
}
}
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