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2002/css-validator/org/w3c/css/properties/css3 CssCursor.java,NONE,1.1

From: Yves Lafon via cvs-syncmail <cvsmail@w3.org>
Date: Fri, 19 Oct 2012 10:05:55 +0000
To: www-validator-cvs@w3.org
Message-Id: <E1TP9Sl-0004Rz-KW@lionel-hutz.w3.org>
Update of /sources/public/2002/css-validator/org/w3c/css/properties/css3
In directory hutz:/tmp/cvs-serv16933/css3

Added Files:
	CssCursor.java 
Log Message:
cursor per css2/css21 and http://www.w3.org/TR/2012/WD-css3-ui-20120117/#cursor0 + removed old code

--- NEW FILE: CssCursor.java ---
// $Id: CssCursor.java,v 1.1 2012/10/19 10:05:53 ylafon Exp $
// Author: Yves Lafon <ylafon@w3.org>
//
// (c) COPYRIGHT MIT, ERCIM and Keio University, 2012.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css3;

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.CssLayerList;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

import static org.w3c.css.values.CssOperator.COMMA;
import static org.w3c.css.values.CssOperator.SPACE;

/**
 * @spec http://www.w3.org/TR/2012/WD-css3-ui-20120117/#cursor0
 */
public class CssCursor extends org.w3c.css.properties.css.CssCursor {

	public static CssIdent[] allowed_values;

	static {
		String[] _allowed_values = {
				"auto", "default", "none", "context-menu", "help",
				"pointer", "progress", "wait", "cell", "crosshair",
				"text", "vertical-text", "alias", "copy", "move",
				"no-drop", "not-allowed", "e-resize", "n-resize",
				"ne-resize", "nw-resize", "s-resize", "se-resize",
				"sw-resize", "w-resize", "ew-resize", "ns-resize",
				"nesw-resize", "nwse-resize", "col-resize",
				"row-resize", "all-scroll", "zoom-in", "zoom-out"};
		allowed_values = new CssIdent[_allowed_values.length];
		int i = 0;
		for (String s : _allowed_values) {
			allowed_values[i++] = CssIdent.getIdent(s);
		}
	}

	public static CssIdent getMatchingIdent(CssIdent ident) {
		for (CssIdent id : allowed_values) {
			if (id.equals(ident)) {
				return id;
			}
		}
		return null;
	}

	/**
	 * Create a new CssCursor
	 */
	public CssCursor() {
	}

	/**
	 * Creates a new CssCursor
	 *
	 * @param expression The expression for this property
	 * @throws org.w3c.css.util.InvalidParamException
	 *          Expressions are incorrect
	 */
	public CssCursor(ApplContext ac, CssExpression expression, boolean check)
			throws InvalidParamException {
		setByUser();

		CssValue val;
		char op;
		CssValue lastIdent = null;
		ArrayList<CssValue> values = new ArrayList<CssValue>();

		while (!expression.end()) {
			val = expression.getValue();
			op = expression.getOperator();
			switch (val.getType()) {
				case CssTypes.CSS_URL:
					if (lastIdent != null) {
						throw new InvalidParamException("value",
								val.toString(),
								getPropertyName(), ac);
					}
					// we got an URL, now let's see if we have
					// a < x y > after that...
					if (op == SPACE) {
						CssExpression exp = new CssExpression();
						exp.addValue(val);
						while (expression.getRemainingCount() > 1 && (op == SPACE)) {
							expression.next();
							exp.addValue(expression.getValue());
							op = expression.getOperator();
						}
						values.add(parseCursorURI(ac, exp, this));
					} else {
						// just a plain ol' URI
						values.add(val);
					}
					break;
				case CssTypes.CSS_IDENT:
					if (inherit.equals(val)) {
						if (expression.getCount() > 1) {
							throw new InvalidParamException("value",
									inherit.toString(),
									getPropertyName(), ac);
						}
						value = inherit;
						break;
					}
					lastIdent = getMatchingIdent((CssIdent) val);
					// not recognized... exit
					if (lastIdent == null) {
						throw new InvalidParamException("value",
								val.toString(),
								getPropertyName(), ac);
					}
					values.add(val);
					break;
				default:
					throw new InvalidParamException("value",
							val.toString(),
							getPropertyName(), ac);
			}
			expression.next();
			if (!expression.end() && (op != COMMA)) {
				throw new InvalidParamException("operator",
						((new Character(op)).toString()), ac);
			}
		}
		if (value != inherit) {
			// check if we got the mandatory ident
			if (lastIdent == null) {
				// TODO better errormsg
				throw new InvalidParamException("value",
						expression.toStringFromStart(),
						getPropertyName(), ac);
			}
			value = (values.size() == 1) ? values.get(0) : new CssLayerList(values);
		}
	}

	public CssCursor(ApplContext ac, CssExpression expression)
			throws InvalidParamException {
		this(ac, expression, false);
	}

	private static final CssValue parseCursorURI(ApplContext ac, CssExpression expression, CssProperty caller)
			throws InvalidParamException {
		if (expression.getCount() != 3) {
			throw new InvalidParamException("value",
					expression.toStringFromStart(),
					caller.getPropertyName(), ac);
		}
		// we must have <url number number>
		CssValue val = expression.getValue();
		ArrayList<CssValue> values = new ArrayList<CssValue>();
		if (val.getType() != CssTypes.CSS_URL) {
			throw new InvalidParamException("value",
					val.toString(),
					caller.getPropertyName(), ac);
		}
		values.add(val);
		expression.next();
		for (int i = 0; i < 2; i++) {
			val = expression.getValue();
			if (val.getType() != CssTypes.CSS_NUMBER) {
				throw new InvalidParamException("value",
						val.toString(),
						caller.getPropertyName(), ac);
			}
			values.add(val);
			expression.next();
		}
		return new CssValueList(values);
	}
}
Received on Friday, 19 October 2012 10:06:07 UTC

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