xml/impl/src/com/intellij/psi/filters/position/RootTagFilter.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.psi.filters.position;
  17
  18 import com.intellij.psi.PsiElement;
  19 import com.intellij.psi.filters.ElementFilter;
  20 import com.intellij.psi.xml.XmlDocument;
  21 import com.intellij.psi.xml.XmlTag;
  22
  23 /**
  24  * Created by IntelliJ IDEA.
  25  * User: ik
  26  * Date: 03.02.2003
  27  * Time: 18:29:13
  28  * To change this template use Options | File Templates.
  29  */
  30 public class RootTagFilter extends PositionElementFilter{
  31   public RootTagFilter(ElementFilter filter){
  32     setFilter(filter);
  33   }
  34
  35   public RootTagFilter(){}
  36   public boolean isAcceptable(Object element, PsiElement scope){
  37     if (!(element instanceof XmlDocument)) return false;
  38     final XmlTag rootTag = ((XmlDocument)element).getRootTag();
  39     if(rootTag == null) return false;
  40
  41     return getFilter().isAcceptable(rootTag, (PsiElement)element);
  42   }
  43
  44   public String toString(){
  45     return "roottag(" + getFilter().toString() + ")";
  46   }
  47 }