| /* |
| * 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.template.macro; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.lookup.LookupElement; |
| import com.intellij.codeInsight.lookup.LookupElementBuilder; |
| import com.intellij.codeInsight.template.*; |
| import com.intellij.psi.*; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import com.intellij.psi.search.PsiElementProcessor; |
| import com.intellij.psi.search.PsiElementProcessorAdapter; |
| import com.intellij.psi.search.searches.ClassInheritorsSearch; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| public class DescendantClassesEnumMacro extends Macro { |
| @Override |
| public String getName() { |
| return "descendantClassesEnum"; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| return CodeInsightBundle.message("macro.descendant.classes.enum"); |
| } |
| |
| @Override |
| public Result calculateResult(@NotNull Expression[] params, ExpressionContext context) { |
| final List<PsiClass> classes = findDescendants(context, params); |
| if (classes == null || classes.size() == 0) return null; |
| Result[] results = calculateResults(classes); |
| |
| return results[0]; |
| } |
| |
| private static Result[] calculateResults(final List<PsiClass> classes) { |
| Result[] results = new Result[classes.size()]; |
| int i = 0; |
| |
| for (final PsiClass aClass : classes) { |
| results[i++] = new JavaPsiElementResult(aClass); |
| } |
| return results; |
| } |
| |
| @Nullable |
| private static List<PsiClass> findDescendants(ExpressionContext context, Expression[] params) { |
| if (params == null || params.length == 0) return null; |
| PsiManager instance = PsiManager.getInstance(context.getProject()); |
| |
| Result result = params[0].calculateResult(context); |
| if (result == null) return null; |
| |
| final String paramResult = result.toString(); |
| if (paramResult == null) return null; |
| |
| final boolean isAllowAbstract = isAllowAbstract(context, params); |
| final PsiClass myBaseClass = |
| JavaPsiFacade.getInstance(instance.getProject()).findClass(paramResult, GlobalSearchScope.allScope(context.getProject())); |
| |
| if (myBaseClass != null) { |
| final List<PsiClass> classes = new ArrayList<PsiClass>(); |
| |
| ClassInheritorsSearch.search(myBaseClass, true).forEach(new PsiElementProcessorAdapter<PsiClass>(new PsiElementProcessor<PsiClass>() { |
| @Override |
| public boolean execute(@NotNull PsiClass element) { |
| if (isAllowAbstract || !isAbstractOrInterface(element)) { |
| classes.add(element); |
| } |
| return true; |
| } |
| |
| })); |
| |
| return classes; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public Result calculateQuickResult(@NotNull Expression[] params, ExpressionContext context) { |
| final List<PsiClass> classes = findDescendants(context, params); |
| if (classes == null || classes.size() == 0) return null; |
| Result[] results = calculateResults(classes); |
| |
| return results[0]; |
| } |
| |
| @Override |
| public LookupElement[] calculateLookupItems(@NotNull Expression[] params, ExpressionContext context) { |
| final List<PsiClass> classes = findDescendants(context, params); |
| if (classes == null || classes.size() == 0) return null; |
| |
| Set<LookupElement> set = new LinkedHashSet<LookupElement>(); |
| boolean isShortName = params.length > 1 && !Boolean.valueOf(params[1].calculateResult(context).toString()); |
| |
| for (PsiClass object : classes) { |
| final String name = isShortName ? object.getName() : object.getQualifiedName(); |
| if (name != null && name.length() > 0) { |
| set.add(LookupElementBuilder.create(name)); |
| } |
| } |
| |
| return set.toArray(new LookupElement[set.size()]); |
| } |
| |
| private static boolean isAbstractOrInterface(final PsiClass psiClass) { |
| final PsiModifierList modifierList = psiClass.getModifierList(); |
| |
| return psiClass.isInterface() || (modifierList != null && modifierList.hasModifierProperty(PsiModifier.ABSTRACT)); |
| } |
| |
| private static boolean isAllowAbstract(final ExpressionContext context, final Expression[] params) { |
| return params.length > 2 ? Boolean.valueOf(params[2].calculateResult(context).toString()) : true; |
| } |
| |
| @Override |
| public boolean isAcceptableInContext(TemplateContextType context) { |
| return context instanceof JavaCodeContextType; |
| } |
| |
| } |