| /* |
| * 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.util.xml.impl; |
| |
| import com.intellij.codeInsight.completion.*; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiReference; |
| import com.intellij.psi.filters.getters.XmlAttributeValueGetter; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.xml.XmlAttribute; |
| import com.intellij.psi.xml.XmlAttributeValue; |
| import com.intellij.psi.xml.XmlTag; |
| import com.intellij.util.ProcessingContext; |
| import com.intellij.util.containers.HashSet; |
| import com.intellij.xml.XmlAttributeDescriptor; |
| import com.intellij.xml.util.XmlUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author peter |
| */ |
| public class DomCompletionContributor extends CompletionContributor{ |
| private final GenericValueReferenceProvider myProvider = new GenericValueReferenceProvider(); |
| |
| @Override |
| public void fillCompletionVariants(@NotNull final CompletionParameters parameters, @NotNull final CompletionResultSet result) { |
| if (parameters.getCompletionType() != CompletionType.BASIC) return; |
| |
| if (domKnowsBetter(parameters, result)) { |
| result.stopHere(); |
| } |
| } |
| |
| private boolean domKnowsBetter(final CompletionParameters parameters, final CompletionResultSet result) { |
| final XmlAttributeValue element = PsiTreeUtil.getParentOfType(parameters.getPosition(), XmlAttributeValue.class); |
| if (element == null) { |
| return false; |
| } |
| |
| if (isSchemaEnumerated(element)) { |
| return false; |
| } |
| final PsiElement parent = element.getParent(); |
| if (parent instanceof XmlAttribute) { |
| XmlAttributeDescriptor descriptor = ((XmlAttribute)parent).getDescriptor(); |
| if (descriptor != null && descriptor.getDefaultValue() != null) { |
| final PsiReference[] references = myProvider.getReferencesByElement(element, new ProcessingContext()); |
| if (references.length > 0) { |
| return LegacyCompletionContributor.completeReference(parameters, result); |
| } |
| } |
| } |
| return false; |
| } |
| |
| public static boolean isSchemaEnumerated(final PsiElement element) { |
| if (element instanceof XmlTag) { |
| final XmlTag simpleContent = XmlUtil.getSchemaSimpleContent((XmlTag)element); |
| if (simpleContent != null && XmlUtil.collectEnumerationValues(simpleContent, new HashSet<String>())) { |
| return true; |
| } |
| } |
| if (element instanceof XmlAttributeValue) { |
| final PsiElement parent = element.getParent(); |
| if (parent instanceof XmlAttribute) { |
| final XmlAttributeDescriptor descriptor = ((XmlAttribute)parent).getDescriptor(); |
| if (descriptor != null && descriptor.isEnumerated()) { |
| return true; |
| } |
| |
| String[] enumeratedValues = XmlAttributeValueGetter.getEnumeratedValues((XmlAttribute)parent); |
| if (enumeratedValues != null && enumeratedValues.length > 0) { |
| String value = descriptor == null ? null : descriptor.getDefaultValue(); |
| if (value == null || enumeratedValues.length != 1 || !value.equals(enumeratedValues[0])) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| } |