| /* |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| package org.apache.batik.dom.svg; |
| |
| import org.apache.batik.anim.values.AnimatableBooleanValue; |
| import org.apache.batik.anim.values.AnimatableValue; |
| import org.apache.batik.dom.anim.AnimationTarget; |
| |
| import org.w3c.dom.Attr; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.svg.SVGAnimatedBoolean; |
| |
| /** |
| * This class implements the {@link SVGAnimatedBoolean} interface. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id$ |
| */ |
| public class SVGOMAnimatedBoolean |
| extends AbstractSVGAnimatedValue |
| implements SVGAnimatedBoolean { |
| |
| /** |
| * The default value. |
| */ |
| protected boolean defaultValue; |
| |
| /** |
| * Whether the base value is valid. |
| */ |
| protected boolean valid; |
| |
| /** |
| * The current base value. |
| */ |
| protected boolean baseVal; |
| |
| /** |
| * The current animated value. |
| */ |
| protected boolean animVal; |
| |
| /** |
| * Whether the value is changing. |
| */ |
| protected boolean changing; |
| |
| /** |
| * Creates a new SVGOMAnimatedBoolean. |
| * @param elt The associated element. |
| * @param ns The attribute's namespace URI. |
| * @param ln The attribute's local name. |
| * @param val The default value, if the attribute is not specified. |
| */ |
| public SVGOMAnimatedBoolean(AbstractElement elt, |
| String ns, |
| String ln, |
| boolean val) { |
| super(elt, ns, ln); |
| defaultValue = val; |
| } |
| |
| /** |
| * <b>DOM</b>: Implements {@link SVGAnimatedBoolean#getBaseVal()}. |
| */ |
| public boolean getBaseVal() { |
| if (!valid) { |
| update(); |
| } |
| return baseVal; |
| } |
| |
| /** |
| * Updates the base value from the attribute. |
| */ |
| protected void update() { |
| Attr attr = element.getAttributeNodeNS(namespaceURI, localName); |
| if (attr == null) { |
| baseVal = defaultValue; |
| } else { |
| baseVal = attr.getValue().equals("true"); |
| } |
| valid = true; |
| } |
| |
| /** |
| * <b>DOM</b>: Implements {@link SVGAnimatedBoolean#setBaseVal(boolean)}. |
| */ |
| public void setBaseVal(boolean baseVal) throws DOMException { |
| try { |
| this.baseVal = baseVal; |
| valid = true; |
| changing = true; |
| element.setAttributeNS(namespaceURI, localName, |
| String.valueOf(baseVal)); |
| } finally { |
| changing = false; |
| } |
| } |
| |
| /** |
| * <b>DOM</b>: Implements {@link SVGAnimatedBoolean#getAnimVal()}. |
| */ |
| public boolean getAnimVal() { |
| if (hasAnimVal) { |
| return animVal; |
| } |
| if (!valid) { |
| update(); |
| } |
| return baseVal; |
| } |
| |
| /** |
| * Sets the animated value. |
| */ |
| public void setAnimatedValue(boolean animVal) { |
| hasAnimVal = true; |
| this.animVal = animVal; |
| fireAnimatedAttributeListeners(); |
| } |
| |
| /** |
| * Updates the animated value with the given {@link AnimatableValue}. |
| */ |
| protected void updateAnimatedValue(AnimatableValue val) { |
| if (val == null) { |
| hasAnimVal = false; |
| } else { |
| hasAnimVal = true; |
| this.animVal = ((AnimatableBooleanValue) val).getValue(); |
| } |
| fireAnimatedAttributeListeners(); |
| } |
| |
| /** |
| * Returns the base value of the attribute as an {@link AnimatableValue}. |
| */ |
| public AnimatableValue getUnderlyingValue(AnimationTarget target) { |
| return new AnimatableBooleanValue(target, getBaseVal()); |
| } |
| |
| /** |
| * Called when an Attr node has been added. |
| */ |
| public void attrAdded(Attr node, String newv) { |
| if (!changing) { |
| valid = false; |
| } |
| fireBaseAttributeListeners(); |
| if (!hasAnimVal) { |
| fireAnimatedAttributeListeners(); |
| } |
| } |
| |
| /** |
| * Called when an Attr node has been modified. |
| */ |
| public void attrModified(Attr node, String oldv, String newv) { |
| if (!changing) { |
| valid = false; |
| } |
| fireBaseAttributeListeners(); |
| if (!hasAnimVal) { |
| fireAnimatedAttributeListeners(); |
| } |
| } |
| |
| /** |
| * Called when an Attr node has been removed. |
| */ |
| public void attrRemoved(Attr node, String oldv) { |
| if (!changing) { |
| valid = false; |
| } |
| fireBaseAttributeListeners(); |
| if (!hasAnimVal) { |
| fireAnimatedAttributeListeners(); |
| } |
| } |
| } |