org.w3c.css.properties.css3.CssUserModify Maven / Gradle / Ivy
//
// $Id: CssUserModify.java,v 1.3 2010-01-05 13:49:56 ylafon Exp $
// From Sijtsche de Jong ([email protected])
//
// (c) COPYRIGHT 1995-2000 World Wide Web Consortium (MIT, INRIA, Keio University)
// Please first read the full copyright statement at
// http://www.w3.org/Consortium/Legal/copyright-software-19980720
package org.w3c.css.properties.css3;
import org.w3c.css.parser.CssStyle;
import org.w3c.css.properties.css.CssProperty;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssValue;
/**
*
* Value: read-only || read-write || write-only || inherit
* Initial:read-only
* Applies to:all elements
* Inherited:yes
* Percentages:no
* Media::interactive
*
* The purpose of this property is to allow finer control over which user
* interface elements are user modifiable. Input elements can be pre-filled
* in, with the user-modify property set to read-only so that the user cannot
* change them. This is useful for templates, or for update forms. The user
* can still activate a read-only element and copy content out of
* it, if that is appropriate for the content model of the element.
* This is different from making the element "user-input:disabled" because
* that would prevent the user from activating the element.
*/
public class CssUserModify extends CssProperty {
CssValue um;
static CssIdent readonly = new CssIdent("read-only");
static CssIdent readwrite = new CssIdent("read-write");
static CssIdent writeonly = new CssIdent("write-only");
/**
* Create a new CssUserModify
*/
public CssUserModify() {
um = readonly;
}
/**
* Create a new CssUserModify
*
* @param expression The expression for this property
* @exception InvalidParamException Incorrect value
*/
public CssUserModify(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
setByUser();
CssValue val = expression.getValue();
if (val.equals(readonly)) {
um = readonly;
expression.next();
}
else if (val.equals(readwrite)) {
um = readwrite;
expression.next();
}
else if (val.equals(writeonly)) {
um = writeonly;
expression.next();
}
else if (val.equals(inherit)) {
um = inherit;
expression.next();
}
else {
throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
}
}
public CssUserModify(ApplContext ac, CssExpression expression)
throws InvalidParamException {
this(ac, expression, false);
}
/**
* Add this property to the CssStyle
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
if (((Css3Style) style).cssUserModify != null)
style.addRedefinitionWarning(ac, this);
((Css3Style) style).cssUserModify = this;
}
/**
* Get this property in the style.
*
* @param style The style where the property is
* @param resolve if true, resolve the style to find this property
*/
public CssProperty getPropertyInStyle(CssStyle style, boolean resolve) {
if (resolve) {
return ((Css3Style) style).getUserModify();
}
else {
return ((Css3Style) style).cssUserModify;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof CssUserModify &&
um.equals(((CssUserModify) property).um));
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "user-modify";
}
/**
* Returns the value of this property
*/
public Object get() {
return um;
}
/**
* Returns true if this property is "softly" inherited
*/
public boolean isSoftlyInherited() {
return um.equals(inherit);
}
/**
* Returns a string representation of the object
*/
public String toString() {
return um.toString();
}
/**
* Is the value of this property a default value
* It is used by alle macro for the function print
*/
public boolean isDefault() {
return um == readonly;
}
}