w3c.css.properties.css3.CssBorderImage Maven / Gradle / Ivy
// $Id$
//
// (c) COPYRIGHT 1995-2012 World Wide Web Consortium (MIT, ERCIM, 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.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.CssTypes;
import org.w3c.css.values.CssValue;
import static org.w3c.css.values.CssOperator.SPACE;
/**
* @spec http://www.w3.org/TR/2012/CR-css3-background-20120417/#border-image
*/
public class CssBorderImage extends org.w3c.css.properties.css.CssBorderImage {
/**
* Create new CssBorderImage
*/
public CssBorderImage() {
value = initial;
}
/**
* Create new CssBorderImage
*
* @param expression The expression for this property
* @throws InvalidParamException Values are incorrect
*/
public CssBorderImage(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
int state = 0;
// || [ / | / ? / ]? ||
// state 0, we check for || ||
// state 1, we check only ( first / after )
// state 2, we check only for
CssExpression newexp;
CssValue val = null;
CssValue tval;
char op;
while (!expression.end()) {
val = expression.getValue();
op = expression.getOperator();
switch (val.getType()) {
case CssTypes.CSS_URL:
case CssTypes.CSS_IMAGE:
if (source != null) {
throw new InvalidParamException("unrecognize", ac);
}
// right after the / in step 2 we must have a slice and outset or width
if (state > 0) {
if ((slice == null) ||
((state == 1 && width == null) || (state == 2 && outset == null))) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
}
// work on this expression as it consumes only one token
source = new CssBorderImageSource(ac, expression, false);
// we must reset the operator
state = 0;
op = expression.getOperator();
break;
case CssTypes.CSS_SWITCH:
state++;
if (slice == null || state > 2) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
expression.next();
break;
case CssTypes.CSS_IDENT:
if (inherit.equals(val)) {
if (expression.getCount() > 1) {
throw new InvalidParamException("unrecognize", ac);
}
value = inherit;
// TODO force individual values as inherit
expression.next();
break;
}
switch (state) {
case 0:
// state 0, we can only have slice or repeat or image
// slice
tval = CssBorderImageSlice.getMatchingIdent((CssIdent) val);
if (tval != null) {
if (slice != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getSliceExpression(ac, expression);
if (newexp != null) {
slice = new CssBorderImageSlice(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
// repeat
newexp = getRepeatExpression(ac, expression);
if (newexp != null) {
if (repeat != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
repeat = new CssBorderImageRepeat(ac, newexp, check);
break;
}
// TODO check for border-image! (none)
if (CssBorderImageSource.isMatchingIdent((CssIdent) val)) {
if (source != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
source = new CssBorderImageSource(ac, expression, false);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 1:
// it can be only width or repeat.
// width
tval = CssBorderImageWidth.getMatchingIdent((CssIdent) val);
if (tval != null) {
if (width != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getWidthExpression(ac, expression);
if (newexp != null) {
width = new CssBorderImageWidth(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
case 2:
// outset has no ident so let 1 and 2 check repeat
newexp = getRepeatExpression(ac, expression);
if (newexp != null) {
if (repeat != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
// right after the / in step 2 we must have a slice or outset
if ((state == 1 && width == null) || (state == 2 && outset == null)) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
repeat = new CssBorderImageRepeat(ac, newexp, check);
state = 0;
break;
}
// TODO check for border-image! (none)
if (CssBorderImageSource.isMatchingIdent((CssIdent) val)) {
if (source != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
// right after the / in step 2 we must have a slice or outset
if ((state == 1 && width == null) || (state == 2 && outset == null)) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
source = new CssBorderImageSource(ac, expression, false);
state = 0;
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
break;
case CssTypes.CSS_PERCENTAGE:
// can appear only in slice and width (so 0 and 1)
switch (state) {
case 0:
if (slice != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getSliceExpression(ac, expression);
if (newexp != null) {
slice = new CssBorderImageSlice(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 1:
if (width != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getWidthExpression(ac, expression);
if (newexp != null) {
width = new CssBorderImageWidth(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 2:
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
break;
case CssTypes.CSS_LENGTH:
// can appear only in width and outset (so 1 and 2)
switch (state) {
case 0:
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 1:
if (width != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getWidthExpression(ac, expression);
if (newexp != null) {
width = new CssBorderImageWidth(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 2:
if (outset != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getOutsetExpression(ac, expression);
if (newexp != null) {
outset = new CssBorderImageOutset(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
break;
case CssTypes.CSS_NUMBER:
switch (state) {
case 0:
if (slice != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getSliceExpression(ac, expression);
if (newexp != null) {
slice = new CssBorderImageSlice(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 1:
if (width != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getWidthExpression(ac, expression);
if (newexp != null) {
width = new CssBorderImageWidth(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
case 2:
if (outset != null) {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
newexp = getOutsetExpression(ac, expression);
if (newexp != null) {
outset = new CssBorderImageOutset(ac, newexp, check);
break;
}
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
break;
default:
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
if (op != SPACE) {
throw new InvalidParamException("operator",
Character.toString(op),
ac);
}
}
if (val.getType() == CssTypes.CSS_SWITCH) {
// we can't end by a /
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
shorthand = true;
}
public CssBorderImage(ApplContext ac, CssExpression expression)
throws InvalidParamException {
this(ac, expression, false);
}
private CssExpression getRepeatExpression(ApplContext ac, CssExpression expression)
throws InvalidParamException {
CssExpression exp = null;
CssValue val, tval;
char op;
val = expression.getValue();
op = expression.getOperator();
if (val.getType() == CssTypes.CSS_IDENT) {
tval = CssBorderImageRepeat.getMatchingIdent((CssIdent) val);
if (tval == null) {
return null;
}
exp = new CssExpression();
exp.addValue(val);
expression.next();
if (!expression.end()) {
// now get the potential second value
// first check the operator
if (op != SPACE) {
return exp;
}
val = expression.getValue();
op = expression.getOperator();
if (val.getType() == CssTypes.CSS_IDENT) {
tval = CssBorderImageRepeat.getMatchingIdent((CssIdent) val);
if (tval != null) {
exp.addValue(tval);
expression.next();
if (op != SPACE) {
return exp;
}
}
}
}
}
return exp;
}
private CssExpression getSliceExpression(ApplContext ac, CssExpression expression)
throws InvalidParamException {
CssExpression exp = new CssExpression();
CssValue val, tval;
char op;
while (exp.getCount() < 5 && !expression.end()) {
val = expression.getValue();
op = expression.getOperator();
switch (val.getType()) {
case CssTypes.CSS_NUMBER:
case CssTypes.CSS_PERCENTAGE:
exp.addValue(val);
break;
case CssTypes.CSS_IDENT:
tval = CssBorderImageSlice.getMatchingIdent((CssIdent) val);
if (tval == null) {
return exp;
}
exp.addValue(val);
break;
default:
return exp;
}
expression.next();
if (op != SPACE) {
return exp;
}
}
return exp;
}
private CssExpression getWidthExpression(ApplContext ac, CssExpression expression)
throws InvalidParamException {
CssExpression exp = new CssExpression();
CssValue val, tval;
char op;
while (exp.getCount() < 4 && !expression.end()) {
val = expression.getValue();
op = expression.getOperator();
switch (val.getType()) {
case CssTypes.CSS_LENGTH:
case CssTypes.CSS_NUMBER:
case CssTypes.CSS_PERCENTAGE:
exp.addValue(val);
break;
case CssTypes.CSS_IDENT:
tval = CssBorderImageWidth.getMatchingIdent((CssIdent) val);
if (tval == null) {
return exp;
}
exp.addValue(val);
break;
default:
return exp;
}
expression.next();
if (op != SPACE) {
return exp;
}
}
return exp;
}
private CssExpression getOutsetExpression(ApplContext ac, CssExpression expression)
throws InvalidParamException {
CssExpression exp = new CssExpression();
CssValue val, tval;
char op;
while (exp.getCount() < 4 && !expression.end()) {
val = expression.getValue();
op = expression.getOperator();
switch (val.getType()) {
case CssTypes.CSS_LENGTH:
case CssTypes.CSS_NUMBER:
exp.addValue(val);
break;
default:
return exp;
}
expression.next();
if (op != SPACE) {
return exp;
}
}
return exp;
}
public String toString() {
if (value != null) {
return value.toString();
}
boolean first = true;
StringBuilder sb = new StringBuilder();
if (source != null) {
first = false;
sb.append(source);
}
if (slice != null) {
if (first) {
first = false;
} else {
sb.append(' ');
}
sb.append(slice);
if (width != null) {
sb.append(" / ").append(width);
if (outset != null) {
sb.append(" / ").append(outset);
}
} else if (outset != null) {
sb.append(" / / ").append(outset);
}
}
if (repeat != null) {
if (!first) {
sb.append(' ');
}
sb.append(repeat);
}
return sb.toString();
}
}
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