/*******************************************************************************
* 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.htmlcss;
import java.util.Enumeration;
import org.eclipse.wst.css.core.internal.contentmodel.PropCMProperty;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleDeclItem;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleDeclaration;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSValue;
import org.eclipse.wst.css.core.internal.util.CSSLinkConverter;
import org.eclipse.wst.css.core.internal.util.declaration.CSSPropertyContext;
/**
*/
class CSSQueryContext extends CSSPropertyContext {
/**
*/
public CSSQueryContext() {
super();
}
/**
*/
public CSSQueryContext(ICSSStyleDeclaration decl) {
super(decl);
}
/**
*
*/
public void applyFull(ICSSStyleDeclaration decl) {
if (decl == null)
return;
Enumeration keys = fProperties.keys();
while (keys.hasMoreElements()) {
Object key = keys.nextElement();
Object val = fProperties.get(key);
if (val instanceof CSSQueryDeclarationData) {
ICSSStyleDeclItem declItem = ((CSSQueryDeclarationData) val).getDeclItem();
if (declItem.getLength() <= 0) {
ICSSStyleDeclItem itemToRemove = decl.getDeclItemNode(key.toString());
if (itemToRemove != null) {
decl.removeDeclItemNode(itemToRemove);
}
}
else {
decl.setDeclItemNode(declItem);
}
}
else {
String value = (val instanceof ICSSValue) ? ((ICSSValue) val).getCSSValueText() : val.toString();
if (value == null || value.length() <= 0) {
ICSSStyleDeclItem itemToRemove = decl.getDeclItemNode(key.toString());
if (itemToRemove != null) {
decl.removeDeclItemNode(itemToRemove);
}
}
else {
decl.setProperty(key.toString(), value, null);
}
}
}
}
/**
*/
private boolean check(String propName, boolean important, int specificity) {
Object current = fProperties.get(propName);
if (current != null && current instanceof CSSQueryValueData) {
CSSQueryValueData currentValue = (CSSQueryValueData) current;
if ((!important && currentValue.important) || (currentValue.getSpecificity() > specificity)) {
return false;
}
}
return true;
}
/**
*/
public void overrideWithExpand(ICSSStyleDeclaration decl, int specificity) {
if (decl == null)
return;
CSSLinkConverter conv = new CSSLinkConverter(decl.getOwnerDocument().getModel());
int nProperties = decl.getLength();
for (int i = 0; i < nProperties; i++) {
String propName = decl.item(i);
if (propName != null) {
String propN = propName.trim().toLowerCase();
if (propN.length() != 0) {
PropCMProperty prop = PropCMProperty.getInstanceOf(propN);
String priority = decl.getPropertyPriority(propName);
boolean important = priority != null && priority.length() > 0;
if (prop != null && prop.isShorthand()) {
// expand shorthand property
CSSQueryContext context = new CSSQueryContext();
expandToLeaf(prop, decl.getPropertyValue(propName), context);
Enumeration properties = context.properties();
while (properties.hasMoreElements()) {
propN = properties.nextElement().toString();
if (check(propN, important, specificity)) {
fProperties.put(propN, new CSSQueryValueData(conv.toAbsolute(context.get(propN)), important, specificity));
}
}
}
else {
if (check(propN, important, specificity)) {
ICSSStyleDeclItem declItem = (ICSSStyleDeclItem) decl.getDeclItemNode(propName).cloneNode(true);
int nValues = declItem.getLength();
for (int j = 0; j < nValues; j++) {
conv.toAbsolute(declItem.item(j));
}
declItem.setPriority(null);
fProperties.put(propN, new CSSQueryDeclarationData(declItem, important, specificity));
}
}
}
}
}
}
}