/*
* Copyright (C) 2007 Esmertec AG.
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed 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 com.android.mms.dom.smil;
import java.util.ArrayList;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.smil.ElementSequentialTimeContainer;
import org.w3c.dom.smil.ElementTime;
import org.w3c.dom.smil.SMILElement;
import com.android.mms.dom.NodeListImpl;
public abstract class ElementSequentialTimeContainerImpl extends
ElementTimeContainerImpl implements ElementSequentialTimeContainer {
/*
* Internal Interface
*/
ElementSequentialTimeContainerImpl(SMILElement element) {
super(element);
}
/*
* ElementSequentialTimeContainer Interface
*/
public NodeList getActiveChildrenAt(float instant) {
NodeList allChildren = this.getTimeChildren();
ArrayList<Node> nodes = new ArrayList<Node>();
for (int i = 0; i < allChildren.getLength(); i++) {
instant -= ((ElementTime) allChildren.item(i)).getDur();
if (instant < 0) {
nodes.add(allChildren.item(i));
return new NodeListImpl(nodes);
}
}
return new NodeListImpl(nodes);
}
public float getDur() {
float dur = super.getDur();
if (dur == 0) {
NodeList children = getTimeChildren();
for (int i = 0; i < children.getLength(); ++i) {
ElementTime child = (ElementTime) children.item(i);
if (child.getDur() < 0) {
// Return "indefinite" since containing a child whose duration is indefinite.
return -1.0F;
}
dur += child.getDur();
}
}
return dur;
}
}