backport: Applet.java: New file.

2000-07-12  Bryce McKinlay  <bryce@albatross.co.nz>

	Merged implementation of java.applet from classpath:
	* java/applet/Applet.java: New file.
	* java/applet/AppletContext.java: New file.
	* java/applet/AppletStub.java: New file.
	* java/applet/AudioClip.java: New file.

	* Makefile.am: Added new java.applet classes.
	* Makefile.in: Rebuilt.

From-SVN: r34981

1 files changed, 108 insertions, 0 deletions

diff --git a/libjava/java/applet/AppletContext.java b/libjava/java/applet/AppletContext.java
new file mode 100644
index 0000000..e8c2c93
--- /dev/null
+++ b/libjava/java/applet/AppletContext.java
@@ -0,0 +1,108 @@
+/* AppletContext.java -- Access the applet's runtime environment.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+ 
+This file is part of GNU Classpath.
+ 
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+ 
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+ 
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
+package java.applet;
+
+import java.awt.Image;
+import java.net.URL;
+import java.util.Enumeration;
+
+/**
+  * This interface allows an applet access to the browser to retrieve
+  * additional data files and display documents.  It also allows the
+  * applet to find out other applets in the same document.
+  *
+  * @author Aaron M. Renn (arenn@urbanophile.com)
+  */
+public interface AppletContext
+{
+  /**
+    * Returns an audio clip from the specified URL.
+    *
+    * @param url The URL of the audio clip.
+    *
+    * @return The retrieved audio clip // FIXME: What happens on error?
+    */
+  AudioClip getAudioClip(URL url);
+
+  /**
+    * Returns an image from the specified URL.  Note that the image is not
+    * actually retrieved until the applet attempts to display it, so this
+    * method returns immediately.
+    *
+    * @param url The URL of the image.
+    *
+    * @return The retrieved image.  // FIXME: What happens on eror?
+    */
+  Image getImage(URL url);
+
+  /**
+    * Returns the applet in the document for this object that has the
+    * specified name.
+    *
+    * @param name The applet name.
+    *
+    * @return The requested applet, or <code>null</code> if an applet with
+    * the requested name cannot be found.
+    */
+  Applet getApplet(String name);
+
+  /**
+    * Returns a list of all the applets in the document for this object.
+    *
+    * @return A list of all the applets in the document for this object.
+    */
+  Enumeration getApplets();
+
+  /**
+    * Displays the web page pointed to by the specified URL in the window
+    * for this object.  This page replaces the document that is currently
+    * there.
+    *
+    * @param url The URL of the web page to load.
+    */
+  void showDocument(URL url);
+
+  /**
+    * Displays the web page pointed to be the sepcified URL in the window
+    * with the specified name.  The standard names "_top", "_blank",
+    * "_parent", and "_self" are allowed.
+    *
+    * @param url The URL of the web page to load.
+    * @param target The target window.
+    */
+  void showDocument(URL url, String target);
+
+  /**
+    * Displays the specified message in the status window if that window
+    * exists.
+    *
+    * @param message The status message.
+    */
+  void showStatus(String message);
+
+} // interface AppletContext