/*******************************************************************************
* Copyright (c) 2001, 2008 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
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.xml.ui.internal.contentassist;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAttributeDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDataType;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.w3c.dom.Node;
public class XMLContentModelGenerator extends AbstractContentModelGenerator {
/**
* ISSUE: this is a bit of hidden JSP knowledge that was implemented this
* way for expedency. Should be evolved in future to depend on
* "nestedContext".
*/
private class DOMJSPRegionContextsPrivateCopy {
private static final String JSP_DIRECTIVE_OPEN = "JSP_DIRECTIVE_OPEN"; //$NON-NLS-1$
}
/**
* XMLContentModelGenerator constructor comment.
*/
public XMLContentModelGenerator() {
super();
}
public void generateAttribute(CMAttributeDeclaration attrDecl, StringBuffer buffer) {
if ((attrDecl == null) || (buffer == null)) {
return;
}
int usage = attrDecl.getUsage();
if (usage == CMAttributeDeclaration.REQUIRED) {
buffer.append(" "); //$NON-NLS-1$
generateRequiredAttribute(null, attrDecl, buffer); // todo pass
// ownerNode as
// 1st param
}
return;
}
protected void generateEndTag(String tagName, Node parentNode, CMElementDeclaration elementDecl, StringBuffer buffer) {
if (elementDecl == null) {
return;
}
if (elementDecl.getContentType() != CMElementDeclaration.EMPTY) {
buffer.append("</" + tagName + ">");//$NON-NLS-2$//$NON-NLS-1$
}
return;
}
public void generateRequiredAttribute(Node ownerNode, CMAttributeDeclaration attrDecl, StringBuffer buffer) {
if ((attrDecl == null) || (buffer == null)) {
return;
}
// attribute name
String attributeName = getRequiredName(ownerNode, attrDecl);
CMDataType attrType = attrDecl.getAttrType();
String defaultValue = null;
// = sign
buffer.append(attributeName + "="); //$NON-NLS-1$
// attribute value
if (attrType != null) {
// insert any value that is implied
if ((attrType.getImpliedValueKind() != CMDataType.IMPLIED_VALUE_NONE) && (attrType.getImpliedValue() != null)) {
defaultValue = attrType.getImpliedValue();
}
// otherwise, if an enumerated list of values exists, use the
// first value
else if ((attrType.getEnumeratedValues() != null) && (attrType.getEnumeratedValues().length > 0)) {
defaultValue = attrType.getEnumeratedValues()[0];
}
}
char attrQuote = '\"';
// Found a double quote, wrap the attribute in single quotes
if(defaultValue != null && defaultValue.indexOf(attrQuote) >= 0) {
attrQuote = '\'';
}
buffer.append(attrQuote);
buffer.append(((defaultValue != null) ? defaultValue : "")); //$NON-NLS-1$
buffer.append(attrQuote);
return;
}
protected void generateStartTag(String tagName, Node parentNode, CMElementDeclaration elementDecl, StringBuffer buffer) {
if ((elementDecl == null) || (buffer == null)) {
return;
}
buffer.append("<" + tagName);//$NON-NLS-1$
generateAttributes(elementDecl, buffer);
buffer.append(getStartTagClose(parentNode, elementDecl));
return;
}
public int getMinimalStartTagLength(Node node, CMElementDeclaration elementDecl) {
if (elementDecl == null) {
return 0;
}
if (requiresAttributes(elementDecl)) {
return getRequiredName(node, elementDecl).length() + 2; // < +
// name +
// space
}
else {
return 1 + getRequiredName(node, elementDecl).length() + getStartTagClose(node, elementDecl).length(); // < +
// name
// +
// appropriate
// close
}
}
protected String getOtherClose(Node notATagNode) {
if (notATagNode instanceof IDOMNode) {
IStructuredDocumentRegion node = ((IDOMNode) notATagNode).getStartStructuredDocumentRegion();
if ((node != null) && (node.getNumberOfRegions() > 1) && node.getRegions().get(0).getType().equals(DOMJSPRegionContextsPrivateCopy.JSP_DIRECTIVE_OPEN)) {
return "%>"; //$NON-NLS-1$
}
}
return null;
}
public String getStartTagClose(Node parentNode, CMElementDeclaration elementDecl) {
String other = getOtherClose(parentNode);
if (other != null) {
return other;
}
if (elementDecl == null) {
return ">";//$NON-NLS-1$
}
if (elementDecl.getContentType() == CMElementDeclaration.EMPTY) {
return "/>"; //$NON-NLS-1$
}
return ">"; //$NON-NLS-1$
}
}