xml/dom-impl/src/com/intellij/util/xml/impl/DomDeclarationSearcher.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.util.xml.impl;
  17
  18 import com.intellij.pom.PomDeclarationSearcher;
  19 import com.intellij.pom.PomTarget;
  20 import com.intellij.psi.PsiElement;
  21 import com.intellij.psi.PsiLanguageInjectionHost;
  22 import com.intellij.psi.tree.IElementType;
  23 import com.intellij.psi.xml.*;
  24 import com.intellij.util.Consumer;
  25 import com.intellij.util.xml.*;
  26 import org.jetbrains.annotations.NotNull;
  27
  28 /**
  29  * @author peter
  30  */
  31 public class DomDeclarationSearcher extends PomDeclarationSearcher {
  32   public void findDeclarationsAt(@NotNull PsiElement psiElement, int offsetInElement, Consumer<PomTarget> consumer) {
  33     if (!(psiElement instanceof XmlToken)) return;
  34
  35     final IElementType tokenType = ((XmlToken)psiElement).getTokenType();
  36
  37     final DomManager domManager = DomManager.getDomManager(psiElement.getProject());
  38     final DomElement domElement;
  39     if (tokenType == XmlTokenType.XML_DATA_CHARACTERS && psiElement.getParent() instanceof XmlText && psiElement.getParent().getParent() instanceof XmlTag) {
  40       final XmlTag tag = (XmlTag)psiElement.getParent().getParent();
  41       for (XmlText text : tag.getValue().getTextElements()) {
  42         if (GenericValueReferenceProvider.hasInjections((PsiLanguageInjectionHost)text)) {
  43           return;
  44         }
  45       }
  46
  47       domElement = domManager.getDomElement(tag);
  48     } else if (tokenType == XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN && psiElement.getParent() instanceof XmlAttributeValue && psiElement.getParent().getParent() instanceof XmlAttribute) {
  49       final PsiElement attributeValue = psiElement.getParent();
  50       if (GenericValueReferenceProvider.hasInjections((PsiLanguageInjectionHost)attributeValue)) {
  51         return;
  52       }
  53       domElement = domManager.getDomElement((XmlAttribute)attributeValue.getParent());
  54     } else {
  55       return;
  56     }
  57
  58     if (!(domElement instanceof GenericDomValue)) {
  59       return;
  60     }
  61
  62     final NameValue nameValue = domElement.getAnnotation(NameValue.class);
  63     if (nameValue != null && nameValue.referencable()) {
  64       DomElement parent = domElement.getParent();
  65       assert parent != null;
  66       final DomTarget target = DomTarget.getTarget(parent);
  67       if (target != null) {
  68         consumer.consume(target);
  69       }
  70     }
  71   }
  72
  73 }