* Value: <integer> || <identifier> ||
* <identifier> <integer>
* Inherited:no
* Percentages:no
* Media::visual
*
* This property is used to effect explicit directional navigation control by
* associating specific styled elements with directional navigation events.
*/
public class ATSCNavUp extends CssProperty {
CssValue navup;
ApplContext ac;
CssIdent auto = new CssIdent("auto");
public ATSCNavUp() {
// nothing to do
}
/**
* Create a new ATSCNavUp
* @param expression The expression for this property
* @exception InvalidParamException Values are incorrect
*/
public ATSCNavUp (ApplContext ac, CssExpression expression)
throws InvalidParamException {
this.ac = ac;
setByUser(); // tell this property is set by the user
CssValue val = expression.getValue();
if (val instanceof CssNumber) {
navup = val;
expression.next();
} else if (val instanceof CssString) {
navup = val;
expression.next();
} else if (val.equals(auto)) {
navup = val;
expression.next();
} else {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
}
/**
* Add this property to the CssStyle.
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
if (((ATSCStyle) style).navup != null)
style.addRedefinitionWarning(ac, this);
((ATSCStyle) style).navup = 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 ((ATSCStyle) style).getNavUp();
} else {
return ((ATSCStyle) style).navup;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof ATSCNavUp &&
navup.equals( ((ATSCNavUp) property).navup));
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "atsc-nav-up";
}
/**
* Returns the value of this property
*/
public Object get() {
return navup;
}
/**
* Returns true if this property is "softly" inherited
*/
public boolean isSoftlyInherited() {
return false;
}
/**
* Returns a string representation of the object
*/
public String toString() {
return navup.toString();
}
/**
* Is the value of this property a default value
* It is used by all macro for the function print
*/
public boolean isDefault() {
return false;
}
}