xml/impl/src/com/intellij/html/impl/RelaxedHtmlFromSchemaElementDescriptor.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.html.impl;
  17
  18 import com.intellij.openapi.extensions.Extensions;
  19 import com.intellij.psi.xml.XmlAttribute;
  20 import com.intellij.psi.xml.XmlTag;
  21 import com.intellij.util.ArrayUtil;
  22 import com.intellij.xml.XmlAttributeDescriptor;
  23 import com.intellij.xml.XmlElementDescriptor;
  24 import com.intellij.xml.XmlExtension;
  25 import com.intellij.xml.XmlAttributeDescriptorsProvider;
  26 import com.intellij.xml.impl.schema.AnyXmlElementDescriptor;
  27 import com.intellij.xml.impl.schema.XmlElementDescriptorImpl;
  28 import com.intellij.xml.util.HtmlUtil;
  29 import com.intellij.xml.util.XmlUtil;
  30 import org.jetbrains.annotations.Nullable;
  31
  32 /**
  33  * @author Maxim.Mossienko
  34  */
  35 public class RelaxedHtmlFromSchemaElementDescriptor extends XmlElementDescriptorImpl {
  36
  37   RelaxedHtmlFromSchemaElementDescriptor(XmlTag tag) {
  38     super(tag);
  39   }
  40
  41   public XmlElementDescriptor getElementDescriptor(XmlTag childTag, XmlTag contextTag) {
  42     XmlElementDescriptor elementDescriptor = super.getElementDescriptor(childTag, contextTag);
  43
  44     if (elementDescriptor == null) {
  45       return getRelaxedDescriptor(this, childTag);
  46     }
  47
  48     return elementDescriptor;
  49   }
  50
  51   public XmlElementDescriptor[] getElementsDescriptors(final XmlTag context) {
  52     return ArrayUtil.mergeArrays(
  53       super.getElementsDescriptors(context),
  54       HtmlUtil.getCustomTagDescriptors(context),
  55       XmlElementDescriptor.class
  56     );
  57   }
  58
  59   public static XmlElementDescriptor getRelaxedDescriptor(XmlElementDescriptor base, final XmlTag childTag) {
  60     final String namespace = childTag.getNamespace();
  61     final XmlExtension extension = XmlExtension.getExtensionByElement(childTag);
  62     if(!XmlUtil.XHTML_URI.equals(namespace) &&
  63        ( base.getContentType() != XmlElementDescriptor.CONTENT_TYPE_EMPTY ||
  64          (extension != null && extension.isCustomTagAllowed(childTag)) // allow custom tag
  65        ) ) {
  66       return new AnyXmlElementDescriptor(base,childTag.getNSDescriptor(namespace,true));
  67     }
  68     return null;
  69   }
  70
  71   public XmlAttributeDescriptor[] getAttributesDescriptors(final XmlTag context) {
  72     return addAttrDescriptorsForFacelets(context, super.getAttributesDescriptors(context));
  73   }
  74
  75   public static XmlAttributeDescriptor[] addAttrDescriptorsForFacelets(final XmlTag context,
  76                                                                        XmlAttributeDescriptor[] descriptors) {
  77     if (context == null) {
  78       return descriptors;
  79     }
  80     for (XmlAttributeDescriptorsProvider provider: Extensions.getExtensions(XmlAttributeDescriptorsProvider.EP_NAME)) {
  81       descriptors = ArrayUtil.mergeArrays(descriptors, provider.getAttributeDescriptors(context), XmlAttributeDescriptor.class);
  82     }
  83     return descriptors;
  84   }
  85
  86   @Override
  87   public XmlAttributeDescriptor getAttributeDescriptor(XmlAttribute attribute) {
  88     return getAttributeDescriptor(attribute.getName(), attribute.getParent());
  89   }
  90
  91   public XmlAttributeDescriptor getAttributeDescriptor(String attributeName, final XmlTag context) {
  92     final XmlAttributeDescriptor descriptor = super.getAttributeDescriptor(attributeName.toLowerCase(), context);
  93     if (descriptor != null) return descriptor;
  94
  95     return getAttributeDescriptorFromFacelets(attributeName, context);
  96   }
  97
  98   @Nullable
  99   public static XmlAttributeDescriptor getAttributeDescriptorFromFacelets(final String attributeName, final XmlTag context) {
 100     if (context == null) {
 101       return null;
 102     }
 103     for (XmlAttributeDescriptorsProvider provider: Extensions.getExtensions(XmlAttributeDescriptorsProvider.EP_NAME)) {
 104       final XmlAttributeDescriptor descriptor = provider.getAttributeDescriptor(attributeName, context);
 105       if (descriptor != null) {
 106         return descriptor;
 107       }
 108     }
 109     return null;
 110   }
 111
 112   public boolean allowElementsFromNamespace(final String namespace, final XmlTag context) {
 113     return true;
 114   }
 115 }