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package sun.applet;

import java.util.*;
import java.io.*;
import java.net.URL;
import java.net.MalformedURLException;
import java.awt.*;
import java.applet.*;


Sample applet panel class. The panel manages and manipulates the applet as it is being loaded. It forks a seperate thread in a new thread group to call the applet's init(), start(), stop(), and destroy() methods.
Author: Arthur van Hoff
Deprecated:The Applet API is deprecated. See the java.applet package documentation for further information.
/** * Sample applet panel class. The panel manages and manipulates the * applet as it is being loaded. It forks a seperate thread in a new * thread group to call the applet's init(), start(), stop(), and * destroy() methods. * * @author Arthur van Hoff * * @deprecated The Applet API is deprecated. See the * <a href="../../java/applet/package-summary.html"> java.applet package * documentation</a> for further information. */
@Deprecated(since = "9") class AppletViewerPanel extends AppletPanel { /* Are we debugging? */ static boolean debug = false;
The document url.
/** * The document url. */
URL documentURL;
The base url.
/** * The base url. */
URL baseURL;
The attributes of the applet.
/** * The attributes of the applet. */
Hashtable<String, String> atts; /* * JDK 1.1 serialVersionUID */ private static final long serialVersionUID = 8890989370785545619L;
Construct an applet viewer and start the applet.
/** * Construct an applet viewer and start the applet. */
AppletViewerPanel(URL documentURL, Hashtable<String, String> atts) { this.documentURL = documentURL; this.atts = atts; String att = getParameter("codebase"); if (att != null) { if (!att.endsWith("/")) { att += "/"; } try { baseURL = new URL(documentURL, att); } catch (MalformedURLException e) { } } if (baseURL == null) { String file = documentURL.getFile(); int i = file.lastIndexOf('/'); if (i >= 0 && i < file.length() - 1) { try { baseURL = new URL(documentURL, file.substring(0, i + 1)); } catch (MalformedURLException e) { } } } // when all is said & done, baseURL shouldn't be null if (baseURL == null) baseURL = documentURL; }
Get an applet parameter.
/** * Get an applet parameter. */
public String getParameter(String name) { return atts.get(name.toLowerCase()); }
Get the document url.
/** * Get the document url. */
public URL getDocumentBase() { return documentURL; }
Get the base url.
/** * Get the base url. */
public URL getCodeBase() { return baseURL; }
Get the width.
/** * Get the width. */
public int getWidth() { String w = getParameter("width"); if (w != null) { return Integer.valueOf(w).intValue(); } return 0; }
Get the height.
/** * Get the height. */
public int getHeight() { String h = getParameter("height"); if (h != null) { return Integer.valueOf(h).intValue(); } return 0; }
Get initial_focus
/** * Get initial_focus */
public boolean hasInitialFocus() { // 6234219: Do not set initial focus on an applet // during startup if applet is targeted for // JDK 1.1/1.2. [stanley.ho] if (isJDK11Applet() || isJDK12Applet()) return false; String initialFocus = getParameter("initial_focus"); if (initialFocus != null) { if (initialFocus.toLowerCase().equals("false")) return false; } return true; }
Get the code parameter
/** * Get the code parameter */
public String getCode() { return getParameter("code"); }
Return the list of jar files if specified. Otherwise return null.
/** * Return the list of jar files if specified. * Otherwise return null. */
public String getJarFiles() { return getParameter("archive"); }
Return the value of the object param
/** * Return the value of the object param */
public String getSerializedObject() { return getParameter("object");// another name? }
Get the applet context. For now this is also implemented by the AppletPanel class.
/** * Get the applet context. For now this is * also implemented by the AppletPanel class. */
@SuppressWarnings("deprecation") public AppletContext getAppletContext() { return (AppletContext)getParent(); } static void debug(String s) { if(debug) System.err.println("AppletViewerPanel:::" + s); } static void debug(String s, Throwable t) { if(debug) { t.printStackTrace(); debug(s); } } }