| /* |
| * Copyright 2000-2013 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.jetbrains.python.codeInsight.completion; |
| |
| import com.google.common.collect.Lists; |
| import com.intellij.codeInsight.completion.*; |
| import com.intellij.codeInsight.lookup.LookupElementBuilder; |
| import com.intellij.patterns.PlatformPatterns; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.util.ProcessingContext; |
| import com.jetbrains.python.psi.*; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.List; |
| |
| /** |
| * @author traff |
| */ |
| public class PySuperClassAttributesCompletionContributor extends CompletionContributor { |
| public PySuperClassAttributesCompletionContributor() { |
| extend(CompletionType.BASIC, |
| PlatformPatterns.psiElement() |
| .withParents(PyReferenceExpression.class, PyExpressionStatement.class, PyStatementList.class, PyClass.class), |
| new CompletionProvider<CompletionParameters>() { |
| @Override |
| protected void addCompletions(@NotNull CompletionParameters parameters, |
| ProcessingContext context, |
| @NotNull CompletionResultSet result) { |
| PsiElement position = parameters.getOriginalPosition(); |
| PyClass containingClass = PsiTreeUtil.getParentOfType(position, PyClass.class); |
| |
| if (containingClass == null) { |
| return; |
| } |
| for (PyTargetExpression expr : getSuperClassAttributes(containingClass)) { |
| result.addElement(LookupElementBuilder.create(expr, expr.getName() + " = ")); |
| } |
| } |
| } |
| ); |
| } |
| |
| public static List<PyTargetExpression> getSuperClassAttributes(@NotNull PyClass cls) { |
| List<PyTargetExpression> attrs = Lists.newArrayList(); |
| List<String> seenNames = Lists.newArrayList(); |
| for (PyTargetExpression expr : cls.getClassAttributes()) { |
| seenNames.add(expr.getName()); |
| } |
| for (PyClass ancestor : cls.getAncestorClasses()) { |
| for (PyTargetExpression expr : ancestor.getClassAttributes()) { |
| if (!seenNames.contains(expr.getName())) { |
| seenNames.add(expr.getName()); |
| attrs.add(expr); |
| } |
| } |
| } |
| return attrs; |
| } |
| } |