xml/impl/src/com/intellij/psi/XmlElementFactoryImpl.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;
  17
  18 import com.intellij.lang.ASTFactory;
  19 import com.intellij.lang.Language;
  20 import com.intellij.lang.xml.XMLLanguage;
  21 import com.intellij.openapi.project.Project;
  22 import com.intellij.openapi.fileTypes.FileType;
  23 import com.intellij.openapi.fileTypes.StdFileTypes;
  24 import com.intellij.psi.xml.*;
  25 import com.intellij.util.IncorrectOperationException;
  26 import com.intellij.xml.util.XmlTagTextUtil;
  27 import org.jetbrains.annotations.NotNull;
  28 import org.jetbrains.annotations.NonNls;
  29
  30 /**
  31  * @author Dmitry Avdeev
  32  */
  33 public class XmlElementFactoryImpl extends XmlElementFactory {
  34
  35   private final Project myProject;
  36
  37   public XmlElementFactoryImpl(Project project) {
  38     myProject = project;
  39   }
  40
  41   @NotNull
  42   public XmlTag createTagFromText(@NotNull @NonNls String text, @NotNull Language language) throws IncorrectOperationException {
  43     assert language instanceof XMLLanguage:"Tag can be created only for xml language";
  44     FileType type = language.getAssociatedFileType();
  45     if (type == null) type = StdFileTypes.XML;
  46     final XmlDocument document = createXmlDocument(text, "dummy."+ type.getDefaultExtension());
  47     final XmlTag tag = document.getRootTag();
  48     if (tag == null) throw new IncorrectOperationException("Incorrect tag text");
  49     return tag;
  50   }
  51
  52   @NotNull
  53   public XmlTag createTagFromText(@NotNull String text) throws IncorrectOperationException {
  54     return createTagFromText(text, StdFileTypes.XML.getLanguage());
  55   }
  56
  57   @NotNull
  58   public XmlAttribute createXmlAttribute(@NotNull String name, String value) throws IncorrectOperationException {
  59     final XmlDocument document = createXmlDocument("<tag " + name + "=\"" + value + "\"/>", "dummy.xml");
  60     XmlTag tag = document.getRootTag();
  61     assert tag != null;
  62     return tag.getAttributes()[0];
  63   }
  64
  65   @NotNull
  66   public XmlText createDisplayText(@NotNull String s) throws IncorrectOperationException {
  67     final XmlTag tagFromText = createTagFromText("<a>" + XmlTagTextUtil.getCDATAQuote(s) + "</a>");
  68     final XmlText[] textElements = tagFromText.getValue().getTextElements();
  69     if (textElements.length == 0) return (XmlText)ASTFactory.composite(XmlElementType.XML_TEXT);
  70     return textElements[0];
  71   }
  72
  73   @NotNull
  74   public XmlTag createXHTMLTagFromText(@NotNull String text) throws IncorrectOperationException {
  75     final XmlDocument document = createXmlDocument(text, "dummy.xhtml");
  76     final XmlTag tag = document.getRootTag();
  77     assert tag != null;
  78     return tag;
  79   }
  80
  81   private XmlDocument createXmlDocument(@NonNls final String text, @NonNls final String fileName) {
  82     final XmlDocument document = ((XmlFile)PsiFileFactory.getInstance(myProject).createFileFromText(fileName, text)).getDocument();
  83     assert document != null;
  84     return document;
  85   }
  86 }