platform/lang-api/src/com/intellij/pom/references/PomReferenceUtil.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.pom.references;
  17
  18 import com.intellij.openapi.util.TextRange;
  19 import com.intellij.psi.ElementManipulator;
  20 import com.intellij.psi.ElementManipulators;
  21 import com.intellij.psi.PsiElement;
  22 import com.intellij.psi.DelegatePsiTarget;
  23 import com.intellij.psi.meta.PsiMetaOwner;
  24 import com.intellij.psi.meta.PsiMetaData;
  25 import com.intellij.psi.meta.PsiMetaDataTarget;
  26 import com.intellij.pom.PomTarget;
  27 import org.jetbrains.annotations.NotNull;
  28
  29 /**
  30  * @author peter
  31  */
  32 public class PomReferenceUtil {
  33
  34   public static String getReferenceText(PomReference reference) {
  35     return reference.getRangeInElement().substring(reference.getElement().getText());
  36   }
  37
  38   public static TextRange getDefaultRangeInElement(PsiElement element) {
  39     final ElementManipulator<PsiElement> manipulator = ElementManipulators.getManipulator(element);
  40     assert manipulator != null: "Cannot find manipulator for " + element;
  41     return manipulator.getRangeInElement(element);
  42   }
  43
  44   public static void changeContent(PomReference reference, String newContent) {
  45     final ElementManipulator<PsiElement> manipulator = ElementManipulators.getManipulator(reference.getElement());
  46     assert manipulator != null: "Cannot find manipulator for " + reference.getElement();
  47     manipulator.handleContentChange(reference.getElement(), reference.getRangeInElement(), newContent);
  48   }
  49
  50
  51   @NotNull
  52   public static PomTarget convertPsi2Target(@NotNull PsiElement element) {
  53     if (element instanceof PsiMetaOwner) {
  54       final PsiMetaOwner metaOwner = (PsiMetaOwner)element;
  55       final PsiMetaData psiMetaData = metaOwner.getMetaData();
  56       if (psiMetaData != null) {
  57         return new PsiMetaDataTarget(psiMetaData);
  58       }
  59     }
  60     if (element instanceof PomTarget) {
  61       return (PomTarget)element;
  62     }
  63     return new DelegatePsiTarget(element);
  64   }
  65 }