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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.css2.property;
import org.eclipse.jst.pagedesigner.css2.ICSSStyle;
import org.w3c.dom.Element;
import org.w3c.dom.css.CSSValue;
/**
* @author mengbo
*/
public interface ICSSPropertyMeta {
public static final int PERCENTAGE_NONE = 0;
public static final int PERCENTAGE_BOXSIZE = 1;
public static final int PERCENTAGE_HEIGHT_CONTAININGBLOCK = 2;
public static final int PERCENTAGE_FONT = 3;
public static final int PERCENTAGE_WIDTH_CONTAININGBLOCK = 4;
public static final Object NOT_SPECIFIED = "NOT_SPECIFIED";
/**
* whether default inherit.
*
* @return
*/
public boolean isInherited();
/**
* initial value
*
* @return
*/
public Object getInitialValue(String propertyName, ICSSStyle style);
public Object getHTMLElementInitialValue(Element element, String htmltag,
String propertyName);
/**
* what's percentage value based on.
*
* @return
*/
public int getPercentageType();
/**
* for many CSS property, there is corresponding HTML attribute can also
* specify value for them. This method should check whether the element has
* corresponding HTML attribute provide value.
*
* @param element
* the element
* @param htmltag
* the html tag name. This is for in case element is jsp/jsf
* element, and have non html tag name.
* @param propertyName
* the property name.
* @param style
* the style
* @return null if no attribute override.
*/
public Object calculateHTMLAttributeOverride(Element element,
String htmltag, String propertyName, ICSSStyle style);
/**
* @param value
* @param propertyName
* @param style
* @return
*/
public Object calculateCSSValueResult(CSSValue value, String propertyName,
ICSSStyle style);
}
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