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2002/css-validator/org/w3c/css/properties/tv CssBackground.java,NONE,1.1

From: Yves Lafon via cvs-syncmail <cvsmail@w3.org>
Date: Fri, 02 Nov 2012 14:14:15 +0000
To: www-validator-cvs@w3.org
Message-Id: <E1TUI0l-0007Hf-VK@lionel-hutz.w3.org>
Update of /sources/public/2002/css-validator/org/w3c/css/properties/tv
In directory hutz:/tmp/cvs-serv27786/tv

Added Files:
	CssBackground.java 
Log Message:
more mobile/tv cleanup

--- NEW FILE: CssBackground.java ---
//
// $Id: CssBackground.java,v 1.1 2012/11/02 14:14:13 ylafon Exp $
// From Philippe Le Hegaret (Philippe.Le_Hegaret@sophia.inria.fr)
//
// (c) COPYRIGHT MIT and INRIA, 1997.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.tv;

import org.w3c.css.parser.CssSelectors;
import org.w3c.css.parser.CssStyle;
import org.w3c.css.properties.css.CssProperty;
import org.w3c.css.properties.css1.Css1Style;
import org.w3c.css.properties.css2.CssBackgroundColor;
import org.w3c.css.properties.css2.CssBackgroundImage;
import org.w3c.css.properties.css2.CssBackgroundPosition;
import org.w3c.css.properties.css2.CssBackgroundRepeat;
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/2003/CR-css-tv-20030514#section-properties
 * @spec
 *
 * @see org.w3c.css.properties.css21.CssBackgroundColor
 * @see org.w3c.css.properties.css21.CssBackgroundImage
 * @see org.w3c.css.properties.css21.CssBackgroundRepeat
 * @see org.w3c.css.properties.css21.CssBackgroundPosition
 */
public class CssBackground extends org.w3c.css.properties.css.CssBackground {

    CssBackgroundColor color;
    CssBackgroundImage image;
    CssBackgroundRepeat repeat;
    CssBackgroundPosition position;

    boolean same;

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

    /**
     * Set the value of the property
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException The expression is incorrect
     */
    public CssBackground(ApplContext ac, CssExpression expression,
						 boolean check) throws InvalidParamException {

		CssValue val;
		char op = SPACE;
		boolean find = true;
		CssExpression background_position_expression = null;

		// too many values
		if (check && expression.getCount() > 5) {
			throw new InvalidParamException("unrecognize", ac);
		}

		setByUser();

		boolean manyValues = (expression.getCount() > 1);

		while (find) {
			val = expression.getValue();
			if (val == null) {
				break;
			}
			op = expression.getOperator();

			// if there are many values, we can't have inherit as one of them
			if (manyValues && val.equals(inherit)) {
				throw new InvalidParamException("unrecognize", null, null, ac);
			}

			switch (val.getType()) {
				case CssTypes.CSS_STRING:
					if (check) {
						throw new InvalidParamException("unrecognize", ac);
					}
					find = false;
					break;
				case CssTypes.CSS_URL:
					if (image == null) {
						image = new CssBackgroundImage(ac, expression);
						continue;
					}
					find = false;
					break;
				case CssTypes.CSS_HASH_IDENT:
				case CssTypes.CSS_COLOR:
					if (color == null) {
						color = new CssBackgroundColor(ac, expression);
						continue;
					}
					find = false;
					break;
				case CssTypes.CSS_NUMBER:
				case CssTypes.CSS_PERCENTAGE:
				case CssTypes.CSS_LENGTH:
					if (background_position_expression == null) {
						background_position_expression = new CssExpression();
					}
					background_position_expression.addValue(val);
					expression.next();
					find = true;
					break;
				case CssTypes.CSS_IDENT:
					// the hard part, as ident can be from different subproperties
					find = false;
					CssIdent identval = (CssIdent) val;
					if (inherit.equals(identval) && !manyValues) {
						find = true;
						same = true;
						expression.next();
						break;
					}
					// check background-image ident
					if (CssBackgroundImage.checkMatchingIdent(identval)) {
						if (image == null) {
							image = new CssBackgroundImage(ac, expression);
							find = true;
						}
						break;
					}
					// check background-repeat ident
					if (CssBackgroundRepeat.checkMatchingIdent(identval)) {
						if (repeat == null) {
							repeat = new CssBackgroundRepeat(ac, expression);
							find = true;
						}
						break;
					}
					// check background-position ident
					if (CssBackgroundPosition.checkMatchingIdent(identval)) {
						if (background_position_expression == null) {
							background_position_expression = new CssExpression();
						}
						background_position_expression.addValue(val);
						expression.next();
						find = true;
						break;
					}

					if (color == null) {
						try {
							color = new CssBackgroundColor(ac, expression);
							find = true;
							break;
						} catch (InvalidParamException e) {
							// nothing to do, image will test this value
						}
					}

				default:
					if (check) {
						throw new InvalidParamException("unrecognize", ac);
					}
					find = false;
			}
			if (check && !find) {
				throw new InvalidParamException("unrecognize", ac);
			}
			if (op != SPACE) {
				throw new InvalidParamException("operator",
						Character.toString(op),
						ac);
			}
		}
		if (background_position_expression != null) {
			position = new CssBackgroundPosition(ac,
					background_position_expression,
					check);
		}
    }

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

    /**
     * Returns the value of this property
     */
    public Object get() {
        return color;
    }

    /**
     * Returns the color
     */
    public final CssValue getColor() {
        if (color == null) {
            return null;
        } else {
            return color.getColor();
        }
    }

    /**
     * Returns a string representation of the object.
     */
    public String toString() {
        StringBuilder sb = new StringBuilder();
        boolean first = true;
        if (color != null) {
            sb.append(color);
            first = false;
        }
        if (image != null) {
            if (!first) {
                sb.append(' ');
            }
            sb.append(image);
            first = false;
        }
        if (repeat != null) {
            if (!first) {
                sb.append(' ');
            }
            first = false;
            sb.append(repeat);
        }
        if (attachment != null) {
            if (!first) {
                sb.append(' ');
            }
            first = false;
            sb.append(attachment);
        }
        if (position != null) {
            if (!first) {
                sb.append(' ');
            }
            sb.append(position);
        }
        return sb.toString();
    }

    /**
     * Set this property to be important.
     * Overrides this method for a macro
     */
    public void setImportant() {
        super.setImportant();
        if (color != null) {
            color.important = true;
        }
        if (image != null) {
            image.important = true;
        }
        if (repeat != null) {
            repeat.important = true;
        }
        if (attachment != null) {
            attachment.important = true;
        }
        if (position != null) {
            position.important = true;
        }
    }

    /**
     * Returns true if this property is important.
     * Overrides this method for a macro
     */
    public boolean getImportant() {
        return important && ((color == null || color.important) &&
                (image == null || image.important) &&
                (repeat == null || repeat.important) &&
                (attachment == null || attachment.important) &&
                (position == null || position.important));
    }

    /**
     * Set the context.
     * Overrides this method for a macro
     *
     * @see org.w3c.css.css.CssCascadingOrder#order
     * @see org.w3c.css.css.StyleSheetParser#handleRule
     */
    public void setSelectors(CssSelectors selector) {
        super.setSelectors(selector);
        if (color != null) {
            color.setSelectors(selector);
        }
        if (image != null) {
            image.setSelectors(selector);
        }
        if (repeat != null) {
            repeat.setSelectors(selector);
        }
        if (attachment != null) {
            attachment.setSelectors(selector);
        }
        if (position != null) {
            position.setSelectors(selector);
        }
    }

    /**
     * Add this property to the CssStyle
     *
     * @param style The CssStyle
     */
    public void addToStyle(ApplContext ac, CssStyle style) {
        ((Css1Style) style).cssBackground.same = same;
        ((Css1Style) style).cssBackground.byUser = byUser;

        if (color != null) {
            color.addToStyle(ac, style);
        }
        if (image != null) {
            image.addToStyle(ac, style);
        }
        if (repeat != null) {
            repeat.addToStyle(ac, style);
        }
        if (attachment != null) {
            attachment.addToStyle(ac, style);
        }
        if (position != null) {
            position.addToStyle(ac, style);
        }
    }

    /**
     * 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 ((Css1Style) style).getBackground();
        } else {
            return ((Css1Style) style).cssBackground;
        }
    }

    /**
     * Compares two properties for equality.
     *
     * @param property The other property.
     */
    public boolean equals(CssProperty property) {
        return false; // FIXME
    }

    /**
     * Update the source file and the line.
     * Overrides this method for a macro
     *
     * @param line   The line number where this property is defined
     * @param source The source file where this property is defined
     */
    public void setInfo(int line, String source) {
        super.setInfo(line, source);
        if (color != null) {
            color.setInfo(line, source);
        }
        if (image != null) {
            image.setInfo(line, source);
        }
        if (repeat != null) {
            repeat.setInfo(line, source);
        }
        if (attachment != null) {
            attachment.setInfo(line, source);
        }
        if (position != null) {
            position.setInfo(line, source);
        }
    }
}
Received on Friday, 2 November 2012 14:14:17 UTC

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