| /* |
| * 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.intellij.psi.impl.source.resolve.reference.impl.providers; |
| |
| import com.intellij.codeInsight.completion.CompletionUtilCoreImpl; |
| import com.intellij.psi.meta.PsiMetaData; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.xml.XmlDocument; |
| import com.intellij.psi.xml.XmlElement; |
| import com.intellij.psi.xml.XmlMarkupDecl; |
| import com.intellij.xml.XmlElementDescriptor; |
| import com.intellij.xml.XmlNSDescriptor; |
| import com.intellij.xml.impl.dtd.XmlNSDescriptorImpl; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author yole |
| */ |
| public class DtdResolveUtil { |
| @Nullable |
| static XmlNSDescriptor getNsDescriptor(XmlElement element) { |
| final XmlElement parentThatProvidesMetaData = PsiTreeUtil |
| .getParentOfType(CompletionUtilCoreImpl.getOriginalElement(element), XmlDocument.class, XmlMarkupDecl.class); |
| |
| if (parentThatProvidesMetaData instanceof XmlDocument) { |
| final XmlDocument document = (XmlDocument)parentThatProvidesMetaData; |
| XmlNSDescriptor rootTagNSDescriptor = document.getRootTagNSDescriptor(); |
| if (rootTagNSDescriptor == null) rootTagNSDescriptor = (XmlNSDescriptor)document.getMetaData(); |
| return rootTagNSDescriptor; |
| } else if (parentThatProvidesMetaData instanceof XmlMarkupDecl) { |
| final XmlMarkupDecl markupDecl = (XmlMarkupDecl)parentThatProvidesMetaData; |
| final PsiMetaData psiMetaData = markupDecl.getMetaData(); |
| |
| if (psiMetaData instanceof XmlNSDescriptor) { |
| return (XmlNSDescriptor)psiMetaData; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Nullable |
| public static XmlElementDescriptor resolveElementReference(String name, XmlElement context) { |
| XmlNSDescriptor rootTagNSDescriptor = getNsDescriptor(context); |
| |
| if (rootTagNSDescriptor instanceof XmlNSDescriptorImpl) { |
| return ((XmlNSDescriptorImpl)rootTagNSDescriptor).getElementDescriptor(name); |
| } |
| return null; |
| } |
| } |