/*
* 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.
*/
/**
* @author Pavel Dolgov
*/
package org.apache.harmony.applet;
import java.applet.Applet;
import java.applet.AppletContext;
import java.applet.AudioClip;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Collection of applets running in one document and loaded from the same code base,
* implementation of <b>AppletContext</b> interface
*/
final class DocumentSlice implements AppletContext {
final CodeBase codeBase;
final Document document;
private final List<Proxy> proxies = new ArrayList<Proxy>();
private final Map<String, InputStream> streams = new HashMap<String, InputStream>();
DocumentSlice(Document doc, CodeBase codeBase) {
this.document = doc;
this.codeBase = codeBase;
}
void add(Proxy p) {
synchronized (proxies) {
proxies.add(p);
}
codeBase.factory.add(p);
}
void remove(Proxy p) {
codeBase.factory.remove(p);
boolean empty;
synchronized (proxies) {
proxies.remove(p);
empty = proxies.isEmpty();
}
if (empty) {
codeBase.remove(this);
document.remove(this);
}
}
public Applet getApplet(String name) {
synchronized (proxies) {
for (Proxy p : proxies) {
if (p.params.name.equals(name)) {
return p.getApplet();
}
}
return null;
}
}
public Enumeration<Applet> getApplets() {
synchronized (proxies) {
ArrayList<Applet> applets = new ArrayList<Applet>();
for (Proxy p : proxies) {
Applet a = p.getApplet();
if (a != null) {
applets.add(a);
}
}
return Collections.enumeration(applets);
}
}
public AudioClip getAudioClip(URL url) {
return new AudioClipImpl(url);
}
public Image getImage(URL url) {
return Toolkit.getDefaultToolkit().getImage(url);
}
public InputStream getStream(String key) {
synchronized (streams) {
return streams.get(key);
}
}
public Iterator<String> getStreamKeys() {
synchronized (streams) {
ArrayList<String> keys = new ArrayList<String>();
for (String string : streams.keySet()) {
keys.add(string);
}
return keys.iterator();
}
}
public void setStream(String key, InputStream stream) throws IOException {
synchronized (streams) {
streams.put(key, stream);
}
}
public void showDocument(URL url, String target) {
codeBase.factory.showDocument(this, url, target);
}
public void showDocument(URL url) {
this.showDocument(url, null);
}
public void showStatus(String status) {
codeBase.factory.showStatus(this, status);
}
}