Package org.eclipse.wst.html.core.internal.modelquery

Source Code of org.eclipse.wst.html.core.internal.modelquery.CMElementDeclarationBuddySystem

/*******************************************************************************
* Copyright (c) 2004, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*     IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.html.core.internal.modelquery;


import org.eclipse.wst.html.core.internal.contentmodel.HTMLCMDocumentFactory;
import org.eclipse.wst.html.core.internal.provisional.HTMLCMProperties;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAttributeDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMContent;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDataType;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDocument;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
import org.eclipse.wst.xml.core.internal.provisional.contentmodel.CMDocType;

/**
*/
class CMElementDeclarationBuddySystem extends CMNodeBuddySystem implements CMElementDeclaration {


  private static CMDocument htmlcm = HTMLCMDocumentFactory.getCMDocument(CMDocType.HTML_DOC_TYPE);

  private static CMElementDeclaration getHTMLCMElemDecl(CMElementDeclaration original) {
    CMElementDeclaration buddy = null;
    if (htmlcm != null) {
      CMNamedNodeMap elems = htmlcm.getElements();
      if (elems != null) {
        buddy = (CMElementDeclaration) elems.getNamedItem(original.getElementName());
      }
    }
    return buddy;
  }

  private class Attrs extends CMNamedNodeMapForBuddySystem {
    private CMNamedNodeMap buddyAttrs = null;

    public Attrs(CMNamedNodeMap attrs, CMNamedNodeMap buddyAttrs, boolean isXHTML) {
      super(isXHTML);
      this.buddyAttrs = buddyAttrs;
      makeBuddySystem(attrs);
    }

    protected String getKeyName(CMNode original) {
      CMAttributeDeclaration adecl = getDecl(original);
      if (adecl == null)
        return null;
      return adecl.getAttrName();
    }

    protected CMNode createBuddySystem(CMNode original) {
      CMAttributeDeclaration adecl = getDecl(original);
      if (adecl == null)
        return null;
      CMAttributeDeclaration buddy = null;
      if (buddyAttrs != null) {
        buddy = (CMAttributeDeclaration) buddyAttrs.getNamedItem(adecl.getAttrName());
      }
      return new CMAttributeDeclarationBuddySystem(adecl, buddy, isXHTML());
    }

    private CMAttributeDeclaration getDecl(CMNode cmnode) {
      if (cmnode == null)
        return null;
      if (cmnode.getNodeType() != CMNode.ATTRIBUTE_DECLARATION)
        return null;
      return (CMAttributeDeclaration) cmnode;
    }
  }

  private Attrs attributes = null;

  public CMElementDeclarationBuddySystem(CMElementDeclaration self, boolean isXHTML) {
    super(self, getHTMLCMElemDecl(self), isXHTML);
  }

  /*
   * @see CMElementDeclaration#getAttributes()
   */
  public CMNamedNodeMap getAttributes() {
    if (attributes != null)
      return attributes;
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return null;
    CMElementDeclaration htmlDecl = getBuddy();
    CMNamedNodeMap htmlAttrs = (htmlDecl == null) ? null : htmlDecl.getAttributes();
    attributes = new Attrs(edecl.getAttributes(), htmlAttrs, isXHTML);
    return attributes;
  }

  /*
   * @see CMElementDeclaration#getContent()
   */
  public CMContent getContent() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return null;
    return edecl.getContent();
  }

  /*
   * @see CMElementDeclaration#getContentType()
   */
  public int getContentType() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return CMElementDeclaration.ANY;
    return edecl.getContentType();
  }

  /*
   * @see CMElementDeclaration#getElementName()
   */
  public String getElementName() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return null;
    return edecl.getElementName();
  }

  /*
   * @see CMElementDeclaration#getDataType()
   */
  public CMDataType getDataType() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return null;
    return edecl.getDataType();
  }

  /*
   * @see CMElementDeclaration#getLocalElements()
   */
  public CMNamedNodeMap getLocalElements() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return null;
    return edecl.getLocalElements();
  }

  /*
   * @see CMContent#getMaxOccur()
   */
  public int getMaxOccur() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return -1;
    return edecl.getMaxOccur();
  }

  /*
   * @see CMContent#getMinOccur()
   */
  public int getMinOccur() {
    CMElementDeclaration edecl = getSelf();
    if (edecl == null)
      return -1;
    return edecl.getMinOccur();
  }

  /*
   * @see CMNode#supports(String)
   */
  public boolean supports(String propertyName) {
    if (isXHTML && propertyName.equals(HTMLCMProperties.OMIT_TYPE))
      return true;
    return super.supports(propertyName);
  }

  /*
   * @see CMNode#getProperty(String)
   */
  public Object getProperty(String propertyName) {
    if (isXHTML && propertyName.equals(HTMLCMProperties.OMIT_TYPE))
      return HTMLCMProperties.Values.OMIT_NONE;
    return super.getProperty(propertyName);
  }

  private CMElementDeclaration getSelf() {
    if (self.getNodeType() != CMNode.ELEMENT_DECLARATION)
      return null;
    return (CMElementDeclaration) self;
  }

  private CMElementDeclaration getBuddy() {
    if (buddy == null)
      return null;
    if (buddy.getNodeType() != CMNode.ELEMENT_DECLARATION)
      return null;
    return (CMElementDeclaration) buddy;
  }
}
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