org.w3c.css.properties.css3.CssKeyEq Maven / Gradle / Ivy
//
// $Id: CssKeyEq.java,v 1.3 2010-01-05 13:49:53 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 java.util.Vector;
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.CssFunction;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssOperator;
import org.w3c.css.values.CssValue;
/**
*
* Value: none || <key-press-combination>+ || <system-key-equivalent> || inherit
* Initial:none
* Applies to:all enabled elements
* Inherited:no
* Percentages:no
* Media::interactive
*/
public class CssKeyEq extends CssProperty {
CssValue keyCombi;
Vector values = new Vector();
CssIdent none = new CssIdent("none");
CssIdent listitemmarker = new CssIdent("list-item-marker");
private static String keys[] =
{ " ", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L",
"M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"accesskey", "fn", "fcn", "caps", "cmd", "rcmd", "lcmd", "opt",
"ropt", "lopt", "ctrl", "rctrl", "lctrl", "shift", "rshift",
"lshift", "alt", "ralt", "lalt", "win", "rwin", "lwin", "meta",
"rmeta", "lmeta", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8",
"f9", "f10", "f11", "f12", "f13", "f14", "f15", "tab", "esc",
"enter", "return", "menu", "help", "namemenu", "rcl", "snd",
"up", "down", "left", "right", "home", "end", "pgup", "pgdn",
"bs", "del", "ins", "undo", "cut", "copy", "paste", "clr", "sto",
"prtsc", "sysrq", "scrlock", "pause", "brk", "numlock", "pwr"};
private static String systemkeys[] =
{ "system-new", "system-open", "system-close", "system-save",
"system-print", "system-quit", "system-terminate-operation",
"system-undo", "system-redo", "system-cut", "system-copy",
"system-paste", "system-clear", "system-duplicate",
"system-select-all", "system-find", "system-find-again",
"system-ok", "system-cancel", "system-apply"
};
/**
* Create a new CssKeyEq
*/
public CssKeyEq() {
keyCombi = none;
}
/**
* Create a new CssKeyEq
*
* @param expression The expression for this property
* @exception InvalidParamException Values are incorrect
*/
public CssKeyEq(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
String kc = new String();
int hyphenindex;
int counter = 0;
char op = expression.getOperator();
CssValue val = expression.getValue();
String part = new String();
String rest = new String();
Vector ks = new Vector();
setByUser();
if (val.equals(none)) {
keyCombi = none;
expression.next();
return;
}
else if (val.equals(inherit)) {
keyCombi = inherit;
expression.next();
return;
} else if (val.equals(listitemmarker)) {
keyCombi = listitemmarker;
expression.next();
return;
}
else if (val instanceof CssFunction) {
CssFunction attr = (CssFunction) val;
CssExpression params = attr.getParameters();
CssValue v = params.getValue();
if (attr.getName().equals("attr")) {
if ((params.getCount() != 1)
|| !(v instanceof CssIdent)) {
throw new InvalidParamException("attr", params.getValue(),
getPropertyName(), ac);
}
}
else throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
keyCombi = val;
expression.next();
return;
}
// check if it is a system-key-equivalent
for (int i = 0;i < systemkeys.length; i++) {
if (val.toString().equals(systemkeys[i])) {
keyCombi = val;
expression.next();
return;
}
}
// no error, because it still can be a normal key combination
while ((op == CssOperator.SPACE)
&& (counter < expression.getCount())) {
kc = val.toString();
if (kc.indexOf("-") < 0) { // only one key
int i = 0;
for (;i < keys.length; i++) {
if (kc.equals(keys[i])) {
break;
}
}
if (i == keys.length) {
throw new InvalidParamException("value",
expression.getValue(),
getPropertyName(), ac);
}
}
else { // keycombination
int hyphenidx = kc.indexOf("-");
part = kc.substring(0, hyphenidx).trim();
rest = kc.substring(hyphenidx + 1, kc.length());
ks.addElement(part);
while (rest.indexOf("-") >= 0) {
hyphenidx = rest.indexOf("-");
part = rest.substring(0, hyphenidx).trim();
rest = rest.substring(hyphenidx + 1, rest.length());
ks.addElement(part);
}
ks.addElement(rest);
for (int idx = 0; idx < ks.size(); idx++) {
int i = 0;
for (;i < keys.length; i++) {
if ((keys[i]).equals((String)ks.elementAt(idx))) {
break;
}
}
if (i == keys.length) {
throw new InvalidParamException("value",
expression.getValue(),
getPropertyName(), ac);
}
}
}
values.addElement(val);
expression.next();
counter++;
val = expression.getValue();
op = expression.getOperator();
ks.removeAllElements();
}
}
public CssKeyEq(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).cssKeyEq != null)
style.addRedefinitionWarning(ac, this);
((Css3Style) style).cssKeyEq = 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).getKeyEq();
} else {
return ((Css3Style) style).cssKeyEq;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof CssKeyEq &&
keyCombi.equals( ((CssKeyEq) property).keyCombi));
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "key-equivalent";
}
/**
* Returns the value of this property
*/
public Object get() {
return values;
}
/**
* Returns true if this property is "softly" inherited
*/
public boolean isSoftlyInherited() {
// @@TODO
return false;
//values.equals(inherit);
}
/**
* Returns a string representation of the object
*/
public String toString() {
if (keyCombi != null)
return keyCombi.toString();
else
return values.firstElement().toString();
}
/**
* Is the value of this property a default value
* It is used by all macro for the function print
*/
public boolean isDefault() {
return keyCombi == none;
}
}