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-rw-r--r--khtml/java/org/kde/kjas/server/KJASAppletStub.java807
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diff --git a/khtml/java/org/kde/kjas/server/KJASAppletStub.java b/khtml/java/org/kde/kjas/server/KJASAppletStub.java
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index e090183d7..000000000
--- a/khtml/java/org/kde/kjas/server/KJASAppletStub.java
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@@ -1,807 +0,0 @@
-package org.kde.kjas.server;
-
-import java.applet.*;
-import java.util.*;
-import java.net.*;
-import java.awt.*;
-import java.awt.event.*;
-import javax.swing.JFrame;
-import java.security.PrivilegedAction;
-import java.security.AccessController;
-import java.security.AccessControlContext;
-import java.security.ProtectionDomain;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-
-/**
- * The stub used by Applets to communicate with their environment.
- *
- */
-public final class KJASAppletStub
- implements AppletStub
-{
- private KJASAppletContext context; // The containing context.
- private Hashtable params; // Maps parameter names to values
- private URL codeBase; // The URL directory where files are
- private URL docBase; // The document that referenced the applet
- private boolean active; // Is the applet active?
- private String appletName; // The name of this applet instance
- private String appletID; // The id of this applet- for use in callbacks
- private Dimension appletSize;
- private String windowName;
- private String className;
- private Class appletClass;
- private JFrame frame;
-
- /**
- * out of bounds applet state :-), perform an action
- */
- public static final int ACTION = -1;
- /**
- * applet state unknown
- */
- public static final int UNKNOWN = 0;
- /**
- * the applet class has been loaded
- */
- public static final int CLASS_LOADED = 1;
- /**
- * the applet has been instanciated
- */
- public static final int INSTANCIATED = 2;
- /**
- * the applet has been initialized
- */
- public static final int INITIALIZED = 3;
- /**
- * the applet has been started
- */
- public static final int STARTED = 4;
- /**
- * the applet has been stopped
- */
- public static final int STOPPED = 5;
- /**
- * the applet has been destroyed
- */
- public static final int DESTROYED = 6;
- /**
- * request for termination of the applet thread
- */
- private static final int TERMINATE = 7;
- /**
- * like TERMINATE, an end-point state
- */
- private static final int FAILED = 8;
-
-
- //private KJASAppletClassLoader loader;
- KJASAppletClassLoader loader;
- private KJASAppletPanel panel;
- private Applet app;
- KJASAppletStub me;
-
- /**
- * Interface for so called LiveConnect actions, put-, get- and callMember
- */
- // keep this in sync with KParts::LiveConnectExtension::Type
- private final static int JError = -1;
- private final static int JVoid = 0;
- private final static int JBoolean = 1;
- private final static int JFunction = 2;
- private final static int JNumber = 3;
- private final static int JObject = 4;
- final static int JString = 5;
-
- interface AppletAction {
- void apply();
- void fail();
- }
-
- private class RunThread extends Thread {
- private int request_state = CLASS_LOADED;
- private int current_state = UNKNOWN;
- private Vector actions = new Vector();
- private AccessControlContext acc = null;
-
- RunThread() {
- super("KJAS-AppletStub-" + appletID + "-" + appletName);
- setContextClassLoader(loader);
- }
- /**
- * Ask applet to go to the next state
- */
- synchronized void requestState(int nstate) {
- if (nstate > current_state) {
- request_state = nstate;
- notifyAll();
- }
- }
- synchronized void requestAction(AppletAction action) {
- actions.add(action);
- notifyAll();
- }
- /**
- * Get the asked state
- */
- synchronized private int getRequestState() {
- while (request_state == current_state) {
- if (!actions.isEmpty()) {
- if (current_state >= INITIALIZED && current_state < STOPPED)
- return ACTION;
- else {
- AppletAction action = (AppletAction) actions.remove(0);
- action.fail();
- }
- } else {
- try {
- wait ();
- } catch(InterruptedException ie) {
- }
- }
- }
- if (request_state == DESTROYED && current_state == STARTED)
- return current_state + 1; // make sure we don't skip stop()
- return request_state;
- }
- /**
- * Get the current state
- */
- synchronized int getAppletState() {
- return current_state;
- }
- /**
- * Set the current state
- */
- synchronized private void setState(int nstate) {
- current_state = nstate;
- }
- /**
- * Put applet in asked state
- * Note, kjavaapletviewer asks for create/start/stop/destroy, the
- * missing states instance/init/terminate, we do automatically
- */
- private void doState(int nstate) throws ClassNotFoundException, IllegalAccessException, InstantiationException {
- switch (nstate) {
- case CLASS_LOADED:
- appletClass = loader.loadClass( className );
- requestState(INSTANCIATED);
- break;
- case INSTANCIATED: {
- Object object = null;
- try {
- object = appletClass.newInstance();
- app = (Applet) object;
- }
- catch ( ClassCastException e ) {
- if ( object != null && object instanceof java.awt.Component) {
- app = new Applet();
- app.setLayout(new BorderLayout());
- app.add( (Component) object, BorderLayout.CENTER);
- } else
- throw e;
- }
- acc = new AccessControlContext(new ProtectionDomain[] {app.getClass().getProtectionDomain()});
- requestState(INITIALIZED);
- break;
- }
- case INITIALIZED:
- app.setStub( me );
- app.setVisible(false);
- panel.setApplet( app );
- if (appletSize.getWidth() > 0)
- app.setBounds( 0, 0, appletSize.width, appletSize.height );
- else
- app.setBounds( 0, 0, panel.getSize().width, panel.getSize().height );
- app.init();
- loader.removeStatusListener(panel);
- // stop the loading... animation
- panel.stopAnimation();
- app.setVisible(true);
- break;
- case STARTED:
- active = true;
- app.start();
- frame.validate();
- app.repaint();
- break;
- case STOPPED:
- active = false;
- app.stop();
- if (Main.java_version > 1.399) {
- // kill the windowClosing listener(s)
- WindowListener[] l = frame.getWindowListeners();
- for (int i = 0; l != null && i < l.length; i++)
- frame.removeWindowListener(l[i]);
- }
- frame.setVisible(false);
- break;
- case DESTROYED:
- if (app != null)
- app.destroy();
- frame.dispose();
- app = null;
- requestState(TERMINATE);
- break;
- default:
- return;
- }
- }
- /**
- * RunThread run(), loop until state is TERMINATE
- */
- public void run() {
- while (true) {
- int nstate = getRequestState();
- if (nstate >= TERMINATE)
- return;
- if (nstate == ACTION) {
- AccessController.doPrivileged(
- new PrivilegedAction() {
- public Object run() {
- AppletAction action = (AppletAction) actions.remove(0);
- try {
- action.apply();
- } catch (Exception ex) {
- Main.debug("Error during action " + ex);
- action.fail();
- }
- return null;
- }
- },
- acc);
- } else { // move to nstate
- try {
- doState(nstate);
- } catch (Exception ex) {
- Main.kjas_err("Error during state " + nstate, ex);
- if (nstate < INITIALIZED) {
- setState(FAILED);
- setFailed(ex.toString());
- return;
- }
- } catch (Throwable tr) {
- setState(FAILED);
- setFailed(tr.toString());
- return;
- }
- setState(nstate);
- stateChange(nstate);
- }
- }
- }
- }
- private RunThread runThread = null;
-
- /**
- * Create an AppletStub for the specified applet. The stub will be in
- * the specified context and will automatically attach itself to the
- * passed applet.
- */
- public KJASAppletStub( KJASAppletContext _context, String _appletID,
- URL _codeBase, URL _docBase,
- String _appletName, String _className,
- Dimension _appletSize, Hashtable _params,
- String _windowName, KJASAppletClassLoader _loader )
- {
- context = _context;
- appletID = _appletID;
- codeBase = _codeBase;
- docBase = _docBase;
- active = false;
- appletName = _appletName;
- className = _className.replace( '/', '.' );
- appletSize = _appletSize;
- params = _params;
- windowName = _windowName;
- loader = _loader;
-
- String fixedClassName = _className;
- if (_className.endsWith(".class") || _className.endsWith(".CLASS"))
- {
- fixedClassName = _className.substring(0, _className.length()-6);
- }
- else if (_className.endsWith(".java")|| _className.endsWith(".JAVA"))
- {
- fixedClassName = _className.substring(0, _className.length()-5);
- }
- className = fixedClassName.replace('/', '.');
-
- appletClass = null;
- me = this;
-
-
- }
-
- private void stateChange(int newState) {
- Main.protocol.sendAppletStateNotification(
- context.getID(),
- appletID,
- newState);
- }
-
- private void setFailed(String why) {
- loader.removeStatusListener(panel);
- panel.stopAnimation();
- panel.showFailed();
- Main.protocol.sendAppletFailed(context.getID(), appletID, why);
- }
-
- void createApplet() {
- panel = new KJASAppletPanel();
- frame = new JFrame(windowName);
- // under certain circumstances, it may happen that the
- // applet is not embedded but shown in a separate window.
- // think of konqueror running under fvwm or gnome.
- // than, the user should have the ability to close the window.
-
- frame.addWindowListener
- (
- new WindowAdapter() {
- public void windowClosing(WindowEvent e) {
- me.destroyApplet();
- }
- }
- );
- frame.getContentPane().add( panel, BorderLayout.CENTER );
- try {
- if (Main.java_version > 1.399)
- frame.setUndecorated(true);
- } catch(java.awt.IllegalComponentStateException e) {
- // This happens with gcj 4.0.1, ignore for now...
- }
- frame.setLocation( 0, 0 );
- frame.pack();
- // resize frame for j2sdk1.5beta1..
- if (appletSize.getWidth() > 0)
- frame.setBounds( 0, 0, appletSize.width, appletSize.height );
- else
- frame.setBounds( 0, 0, 50, 50 );
- frame.setVisible(true);
- loader.addStatusListener(panel);
- runThread = new RunThread();
- runThread.start();
- }
-
- /**
- * starts the applet managed by this stub by calling the applets start() method.
- * Also marks this stub as active.
- * @see java.applet.Applet#start()
- * @see java.applet.AppletStub#isActive()
- *
- */
- void startApplet()
- {
- runThread.requestState(STARTED);
- }
-
- /**
- * stops the applet managed by this stub by calling the applets stop() method.
- * Also marks this stub as inactive.
- * @see java.applet.Applet#stop()
- * @see java.applet.AppletStub#isActive()
- *
- */
- void stopApplet()
- {
- runThread.requestState(STOPPED);
- }
-
- /**
- * initialize the applet managed by this stub by calling the applets init() method.
- * @see java.applet.Applet#init()
- */
- void initApplet()
- {
- runThread.requestState(INITIALIZED);
- }
-
- /**
- * destroys the applet managed by this stub by calling the applets destroy() method.
- * Also marks the the applet as inactive.
- * @see java.applet.Applet#init()
- */
- synchronized void destroyApplet()
- {
- runThread.requestState(DESTROYED);
- }
-
- static void waitForAppletThreads()
- {
- Thread [] ts = new Thread[Thread.activeCount() + 5];
- int len = Thread.enumerate(ts);
- for (int i = 0; i < len; i++) {
- try {
- if (ts[i].getName() != null &&
- ts[i].getName().startsWith("KJAS-AppletStub-")) {
- try {
- ((RunThread) ts[i]).requestState(TERMINATE);
- ts[i].join(10000);
- } catch (InterruptedException ie) {}
- }
- } catch (Exception e) {}
- }
- }
-
- /**
- * get the Applet managed by this stub.
- * @return the Applet or null if the applet could not be loaded
- * or instanciated.
- */
- Applet getApplet()
- {
- if (runThread != null && runThread.getAppletState() > CLASS_LOADED)
- return app;
- return null;
- }
-
- /**
- * get a parameter value given in the &lt;APPLET&gt; tag
- * @param name the name of the parameter
- * @return the value or null if no parameter with this name exists.
- */
-
- public String getParameter( String name )
- {
- return (String) params.get( name.toUpperCase() );
- }
-
- /**
- * implements the isActive method of the AppletStub interface.
- * @return if the applet managed by this stub is currently active.
- * @see java.applet.AppletStub#isActive()
- */
- public boolean isActive()
- {
- return active;
- }
-
- /**
- * determines if the applet has been loaded and instanciated
- * and can hence be used.
- * @return true if the applet has been completely loaded.
- */
- boolean isLoaded() {
- if (runThread == null)
- return false;
- int state = runThread.getAppletState();
- return (state >= INSTANCIATED && state < DESTROYED);
- }
-
- public void appletResize( int width, int height )
- {
- if( active )
- {
- if ( (width >= 0) && (height >= 0))
- {
- Main.debug( "Applet #" + appletID + ": appletResize to : (" + width + ", " + height + ")" );
- Main.protocol.sendResizeAppletCmd( context.getID(), appletID, width, height );
- appletSize = new Dimension( width, height );
- //pack();
- }
- }
- }
-
- /**
- * converts Object <b>arg</b> into an object of class <b>cl</b>.
- * @param arg Object to convert
- * @param cl Destination class
- * @return An Object of the specified class with the value specified
- * in <b>arg</b>
- */
- private static final Object cast(Object arg, Class cl) throws NumberFormatException {
- Object ret = arg;
- if (arg == null) {
- ret = null;
- }
- else if (cl.isAssignableFrom(arg.getClass())) {
- return arg;
- }
- else if (arg instanceof String) {
- String s = (String)arg;
- Main.debug("Argument String: \"" + s + "\"");
- if (cl == Boolean.TYPE || cl == Boolean.class) {
- ret = new Boolean(s);
- } else if (cl == Integer.TYPE || cl == Integer.class) {
- ret = new Integer(s);
- } else if (cl == Long.TYPE || cl == Long.class) {
- ret = new Long(s);
- } else if (cl == Float.TYPE || cl == Float.class) {
- ret = new Float(s);
- } else if (cl == Double.TYPE || cl == Double.class) {
- ret = new Double(s);
- } else if (cl == Short.TYPE || cl == Short.class) {
- ret = new Short(s);
- } else if (cl == Byte.TYPE || cl == Byte.class) {
- ret = new Byte(s);
- } else if (cl == Character.TYPE || cl == Character.class) {
- ret = new Character(s.charAt(0));
- }
- }
- return ret;
- }
- private Method findMethod(Class c, String name, Class [] argcls) {
- try {
- Method[] methods = c.getMethods();
- for (int i = 0; i < methods.length; i++) {
- Method m = methods[i];
- if (m.getName().equals(name)) {
- Main.debug("Candidate: " + m);
- Class [] parameterTypes = m.getParameterTypes();
- if (argcls == null) {
- if (parameterTypes.length == 0) {
- return m;
- }
- } else {
- if (argcls.length == parameterTypes.length) {
- for (int j = 0; j < argcls.length; j++) {
- // Main.debug("Parameter " + j + " " + parameterTypes[j]);
- argcls[j] = parameterTypes[j];
- }
- return m;
- }
- }
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
- }
- private int[] getJSTypeValue(Hashtable jsRefs, Object obj, int objid, StringBuffer value) {
- String val = obj.toString();
- int[] rettype = { JError, objid };
- String type = obj.getClass().getName();
- if (type.equals("boolean") || type.equals("java.lang.Boolean"))
- rettype[0] = JBoolean;
- else if (type.equals("int") || type.equals("long") ||
- type.equals("float") || type.equals("double") ||
- type.equals("byte") || obj instanceof java.lang.Number)
- rettype[0] = JNumber;
- else if (type.equals("java.lang.String"))
- rettype[0] = JString;
- else if (!type.startsWith("org.kde.kjas.server") &&
- !(obj instanceof java.lang.Class &&
- ((Class)obj).getName().startsWith("org.kde.kjas.server"))) {
- rettype[0] = JObject;
- rettype[1] = obj.hashCode();
- jsRefs.put(new Integer(rettype[1]), obj);
- }
- value.insert(0, val);
- return rettype;
- }
- private class PutAction implements AppletAction {
- int call_id;
- int objid;
- String name;
- String value;
- PutAction(int cid, int oid, String n, String v) {
- call_id = cid;
- objid = oid;
- name = n;
- value = v;
- }
- public void apply() {
- Hashtable jsRefs = loader.getJSReferencedObjects();
- Object o = objid==0 ? getApplet() : jsRefs.get(new Integer(objid));
- if (o == null) {
- Main.debug("Error in putValue: object " + objid + " not found");
- fail();
- return;
- }
- Field f;
- try {
- f = o.getClass().getField(name);
- } catch (Exception e) {
- fail();
- return;
- }
- if (f == null) {
- Main.debug("Error in putValue: " + name + " not found");
- fail();
- return;
- }
- try {
- String type = f.getType().getName();
- Main.debug("putValue: (" + type + ")" + name + "=" + value);
- if (type.equals("boolean"))
- f.setBoolean(o, Boolean.getBoolean(value));
- else if (type.equals("java.lang.Boolean"))
- f.set(o, Boolean.valueOf(value));
- else if (type.equals("int"))
- f.setInt(o, Integer.parseInt(value));
- else if (type.equals("java.lang.Integer"))
- f.set(o, Integer.valueOf(value));
- else if (type.equals("byte"))
- f.setByte(o, Byte.parseByte(value));
- else if (type.equals("java.lang.Byte"))
- f.set(o, Byte.valueOf(value));
- else if (type.equals("char"))
- f.setChar(o, value.charAt(0));
- else if (type.equals("java.lang.Character"))
- f.set(o, new Character(value.charAt(0)));
- else if (type.equals("double"))
- f.setDouble(o, Double.parseDouble(value));
- else if (type.equals("java.lang.Double"))
- f.set(o, Double.valueOf(value));
- else if (type.equals("float"))
- f.setFloat(o, Float.parseFloat(value));
- else if (type.equals("java.lang.Float"))
- f.set(o, Float.valueOf(value));
- else if (type.equals("long"))
- f.setLong(o, Long.parseLong(value));
- else if (type.equals("java.lang.Long"))
- f.set(o, Long.valueOf(value));
- else if (type.equals("short"))
- f.setShort(o, Short.parseShort(value));
- else if (type.equals("java.lang.Short"))
- f.set(o, Short.valueOf(value));
- else if (type.equals("java.lang.String"))
- f.set(o, value);
- else {
- Main.debug("Error putValue: unsupported type: " + type);
- fail();
- return;
- }
- } catch (Exception e) {
- Main.debug("Exception in putValue: " + e.getMessage());
- fail();
- return;
- }
- Main.protocol.sendPutMember( context.getID(), call_id, true );
- }
- public void fail() {
- Main.protocol.sendPutMember( context.getID(), call_id, false );
- }
- }
- private class GetAction implements AppletAction {
- int call_id;
- int objid;
- String name;
- GetAction(int cid, int oid, String n) {
- call_id = cid;
- objid = oid;
- name = n;
- }
- public void apply() {
- Main.debug("getMember: " + name);
- StringBuffer value = new StringBuffer();
- int ret[] = { JError, objid };
- Hashtable jsRefs = loader.getJSReferencedObjects();
- Object o = objid==0 ? getApplet() : jsRefs.get(new Integer(objid));
- if (o == null) {
- fail();
- return;
- }
- Class c = o.getClass();
- try {
- Field field = c.getField(name);
- ret = getJSTypeValue(jsRefs, field.get(o), objid, value);
- } catch (Exception ex) {
- Method [] m = c.getMethods();
- for (int i = 0; i < m.length; i++)
- if (m[i].getName().equals(name)) {
- ret[0] = JFunction;
- break;
- }
- }
- Main.protocol.sendMemberValue(context.getID(), KJASProtocolHandler.GetMember, call_id, ret[0], ret[1], value.toString());
- }
- public void fail() {
- Main.protocol.sendMemberValue(context.getID(), KJASProtocolHandler.GetMember, call_id, -1, 0, "");
- }
- }
- private class CallAction implements AppletAction {
- int call_id;
- int objid;
- String name;
- java.util.List args;
- CallAction(int cid, int oid, String n, java.util.List a) {
- call_id = cid;
- objid = oid;
- name = n;
- args = a;
- }
- public void apply() {
- StringBuffer value = new StringBuffer();
- Hashtable jsRefs = loader.getJSReferencedObjects();
- int [] ret = { JError, objid };
- Object o = objid==0 ? getApplet() : jsRefs.get(new Integer(objid));
- if (o == null) {
- fail();
- return;
- }
-
- try {
- Main.debug("callMember: " + name);
- Object obj;
- Class c = o.getClass();
- String type;
- Class [] argcls = new Class[args.size()];
- for (int i = 0; i < args.size(); i++)
- argcls[i] = name.getClass(); // String for now, will be updated by findMethod
- Method m = findMethod(c, (String) name, argcls);
- Main.debug("Found Method: " + m);
- if (m != null) {
- Object [] argobj = new Object[args.size()];
- for (int i = 0; i < args.size(); i++) {
- argobj[i] = cast(args.get(i), argcls[i]);
- }
- Object retval = m.invoke(o, argobj);
- if (retval == null)
- ret[0] = JVoid;
- else
- ret = getJSTypeValue(jsRefs, retval, objid, value);
- }
- } catch (Exception e) {
- Main.debug("callMember threw exception: " + e.toString());
- }
- Main.protocol.sendMemberValue(context.getID(), KJASProtocolHandler.CallMember, call_id, ret[0], ret[1], value.toString());
- }
- public void fail() {
- Main.protocol.sendMemberValue(context.getID(), KJASProtocolHandler.CallMember, call_id, -1, 0, "");
- }
- }
- boolean putMember(int callid, int objid, String name, String val) {
- if (runThread == null)
- return false;
- runThread.requestAction( new PutAction( callid, objid, name, val) );
- return true;
- }
- boolean getMember(int cid, int oid, String name) {
- if (runThread == null)
- return false;
- runThread.requestAction( new GetAction( cid, oid, name) );
- return true;
- }
- boolean callMember(int cid, int oid, String name, java.util.List args) {
- if (runThread == null)
- return false;
- runThread.requestAction( new CallAction( cid, oid, name, args) );
- return true;
- }
- /*************************************************************************
- ********************** AppletStub Interface *****************************
- *************************************************************************/
- /**
- * implements the getAppletContext method of the AppletStub interface.
- * @return the AppletContext to which this stub belongs.
- * @see java.applet.AppletStub#getAppletContext()
- */
- public AppletContext getAppletContext()
- {
- return context;
- }
-
- /**
- * implements the getCodeBase method of the AppletStub interface.
- * @return the code base of the applet as given in the &lt;APPLET&gt; tag.
- * @see java.applet.AppletStub#getCodeBase()
- */
- public URL getCodeBase()
- {
- return codeBase;
- }
-
- /**
- * implements the getDocumentBase method of the AppletStub interface.
- * @return the code base of the applet as given in the
- * &lt;APPLET&gt; tag or determined by the containing page.
- * @see java.applet.AppletStub#getDocumentBase()
- */
- public URL getDocumentBase()
- {
- return docBase;
- }
-
- /**
- * get the applet's name
- * @return the name of the applet as given in the
- * &lt;APPLET&gt; tag or determined by the <em>code</em> parameter.
- */
- public String getAppletName()
- {
- return appletName;
- }
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 21:04:16 +0000