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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 com.intellij.ide.structureView.impl.java;
import com.intellij.ide.structureView.StructureViewTreeElement;
import com.intellij.ide.util.treeView.smartTree.SortableTreeElement;
import com.intellij.openapi.editor.colors.CodeInsightColors;
import com.intellij.openapi.editor.colors.TextAttributesKey;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.util.registry.Registry;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import com.intellij.psi.search.searches.SuperMethodsSearch;
import com.intellij.psi.util.MethodSignatureBackedByPsiMethod;
import com.intellij.psi.util.PsiFormatUtil;
import com.intellij.util.Function;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.NotNull;
import java.util.*;
import static com.intellij.psi.util.PsiFormatUtilBase.*;
public class PsiMethodTreeElement extends JavaClassTreeElementBase<PsiMethod> implements SortableTreeElement {
public PsiMethodTreeElement(PsiMethod method, boolean isInherited) {
super(isInherited, method);
}
@Override
@NotNull
public Collection<StructureViewTreeElement> getChildrenBase() {
final List<StructureViewTreeElement> emptyResult = Collections.emptyList();
final PsiMethod element = getElement();
if (element == null || element instanceof SyntheticElement) return emptyResult;
final PsiFile psiFile = element.getContainingFile();
if (psiFile == null || psiFile instanceof PsiCompiledElement) return emptyResult;
final TextRange range = element.getTextRange();
if (range == null) return emptyResult;
final String fileText = psiFile.getText();
if (fileText == null) return emptyResult;
if (!range.substring(fileText).contains(PsiKeyword.CLASS)) return emptyResult;
final ArrayList<StructureViewTreeElement> result = new ArrayList<StructureViewTreeElement>();
element.accept(new JavaRecursiveElementWalkingVisitor(){
@Override public void visitClass(PsiClass aClass) {
if (!(aClass instanceof PsiAnonymousClass) && !(aClass instanceof PsiTypeParameter)) {
result.add(new JavaClassTreeElement(aClass, isInherited(), new HashSet<PsiClass>(Arrays.asList(aClass.getSupers()))));
}
}
});
return result;
}
@Override
public String getPresentableText() {
String method = PsiFormatUtil.formatMethod(getElement(),
PsiSubstitutor.EMPTY,
SHOW_NAME | SHOW_TYPE | TYPE_AFTER | SHOW_PARAMETERS,
SHOW_TYPE);
return StringUtil.replace(method, ":", ": ");
}
@Override
public String getLocationString() {
if (!Registry.is("show.method.base.class.in.java.file.structure")) return null;
final PsiMethod method = getElement();
if (myLocation == null) {
if (isInherited()) {
return super.getLocationString();
} else {
try {
final MethodSignatureBackedByPsiMethod baseMethod = SuperMethodsSearch.search(method, null, true, false).findFirst();
if (baseMethod != null && !method.isEquivalentTo(baseMethod.getMethod())) {
PsiMethod base = baseMethod.getMethod();
PsiClass baseClass = base.getContainingClass();
if (baseClass != null /*&& !CommonClassNames.JAVA_LANG_OBJECT.equals(baseClass.getQualifiedName())*/) {
if (baseClass.getMethods().length > 1) {
myLocation = baseClass.getName();
}
}
}
}
catch (IndexNotReadyException e) {
//some searchers (EJB) require indices. What shall we do?
}
if (StringUtil.isEmpty(myLocation)) {
myLocation = "";
} else {
char upArrow = '\u2191';
myLocation = UIUtil.getLabelFont().canDisplay(upArrow) ? upArrow + myLocation : myLocation;
}
}
}
return StringUtil.isEmpty(myLocation) ? null : myLocation;
}
@Override
public TextAttributesKey getTextAttributesKey() {
if (isInherited()) return CodeInsightColors.NOT_USED_ELEMENT_ATTRIBUTES;
return super.getTextAttributesKey();
}
public PsiMethod getMethod() {
return getElement();
}
@NotNull
@Override
public String getAlphaSortKey() {
final PsiMethod method = getElement();
if (method != null) {
return method.getName() + " " + StringUtil.join(method.getParameterList().getParameters(), new Function<PsiParameter, String>() {
@Override
public String fun(PsiParameter psiParameter) {
PsiTypeElement typeElement = psiParameter.getTypeElement();
return typeElement != null ? typeElement.getText() : "";
}
}, " ");
}
return "";
}
@Override
public String getLocationPrefix() {
return " ";
}
@Override
public String getLocationSuffix() {
return "";
}
}
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