1 files changed, 183 insertions, 0 deletions
diff --git a/khtml/java/org/kde/javascript/JSObject.java b/khtml/java/org/kde/javascript/JSObject.java
new file mode 100644
index 000000000..11e7f9f99
--- /dev/null
+++ b/khtml/java/org/kde/javascript/JSObject.java
@@ -0,0 +1,183 @@
+package org.kde.javascript;
+
+import java.applet.Applet;
+import org.kde.kjas.server.KJASAppletContext;
+import org.kde.kjas.server.Main;
+
+public class JSObject extends netscape.javascript.JSObject {
+    public String returnvalue = null;
+    public Thread thread;
+
+    private String jsobject;
+    private int id;
+    private Applet applet;
+    private String appletID = null;
+
+    /* JavaScript code:
+     * __lc=[[JS objects],call func(index,script,appletname,isglobal)]
+     */
+    private final static String decls = "if(!window.__lc) window.__lc=[[window],function(i,s,a,g){var v;var len=window.__lc[0].length;if(i>=len)v='E unknown object';else{var r;try{r=eval((g?'':'window.__lc[0][i]')+s);}catch(e){v='E '+e;r='E ';}finally{var t=typeof r;if(t=='undefined')v='V ';else if(t=='number')v='N '+r;else if(t=='string'){if(r!='E ')v='S '+r;}else{window.__lc[0][len]=r;v=''+len+' '+(r==window.__lc?'[array]':r);}}}a.__lc_ret=v},0]";
+
+    public JSObject(Applet a, String name, int _id) {
+        Main.info("JSObject.ctor: " + name);
+        jsobject = new String(name);
+        applet = a;
+        id = _id;
+        KJASAppletContext kc = (KJASAppletContext)applet.getAppletContext();
+        appletID = kc.getAppletID(a);
+        if (id == 0) {
+            kc.evaluateJavaScript(decls, appletID, null);
+        } 
+    }
+
+    int getId() {
+        return id;
+    }
+
+    private String escapeString(String string) {
+        StringBuffer sb = new StringBuffer();
+        int idx = 0;
+        boolean cr = false;
+        char [] chars = string.toCharArray();
+        while (idx < chars.length) {
+            if (cr && chars[idx] != '\n') {
+                cr = false;
+                sb.append("\\n");
+            }
+            switch (chars[idx]) {
+                case '\\':
+                    sb.append("\\\\");
+                    break;
+                case '"':
+                    sb.append("\\\"");
+                    break;
+                case '\n':
+                    cr = false;
+                    sb.append("\\n");
+                    break;
+                case '\r':
+                    cr = true;
+                    break;
+                default:
+                    sb.append(chars[idx]);
+            }
+            idx++;
+        }
+        if (cr)
+            sb.append("\\n");
+        return sb.toString();
+    }
+
+    private Object evaluate(String script, boolean global) throws netscape.javascript.JSException {
+        Main.info("evaluate (\"" + script + "\")");
+         
+        KJASAppletContext kc = (KJASAppletContext) applet.getAppletContext();
+        //String appletname = kc.getAppletName(appletID);
+        thread = Thread.currentThread();
+
+        if (!kc.evaluateJavaScript("window.__lc[1](" + id + ",\"" + escapeString(script) + "\",this" + (global ? ",true)" : ")"), appletID, this)) {
+            Main.debug("evaluate on not active applet");
+            return null;
+        }
+        boolean timedout = true;
+        try {
+            Thread.sleep(30000);
+        } catch (InterruptedException ex) {
+            timedout = false;
+        }
+        thread = null;
+        if (timedout || returnvalue == null)
+            return null;
+
+        /* lets see what we've got */
+        String retval = returnvalue;
+        int pos = retval.indexOf(' ');
+        String type = retval.substring(0, pos);
+        if (type.equals("V")) // Void
+            return null;
+        String value = retval.substring(pos+1);
+        if (type.equals("E")) // Error
+            throw new netscape.javascript.JSException("Script error: " + value);
+        Main.info("value=" + value + " (type=" + type + ")");
+        if (type.equals("N")) // Number
+            return new Double(value);
+        if (type.equals("S")) // String
+            return value;
+
+        /* Is it an applet? */
+        if (value.startsWith("[object APPLET ref=")) {
+            int p1 = value.indexOf('=');
+            int p2 = value.indexOf(']', p1+1);
+            int applethashcode = Integer.parseInt(value.substring(p1+1, p2));
+            java.util.Enumeration e = kc.getApplets();
+            while (e.hasMoreElements()) {
+                Applet app = (Applet) e.nextElement();
+                if (app.hashCode() == applethashcode)
+                    return app;
+            }
+            return null;
+        }
+        /* Is it a Java object then? */
+        if (value.startsWith("[object ") && value.indexOf("ref=") > 0) {
+            int p1 = value.indexOf("ref=");
+            int p2 = value.indexOf(']', p1+4);
+            int objecthashcode = Integer.parseInt(value.substring(p1+4, p2));
+            return kc.getJSReferencedObject(applet, objecthashcode);
+        }
+        /* Ok, make it a JSObject */
+        return new JSObject(applet, value, Integer.parseInt(type));
+    }
+    private String convertValueJ2JS(Object o) {
+        if (o == null)
+            return new String("null");
+        if (o instanceof java.lang.Number || o instanceof java.lang.Boolean)
+            return o.toString();
+        if (o instanceof netscape.javascript.JSObject)
+            return new String("window.__lc[0][" + ((JSObject)o).getId() + "]");
+        return new String("\"" + escapeString(o.toString()) + "\"");
+    }
+    public Object call(String func, Object [] args) throws netscape.javascript.JSException {
+        Main.info("JSObject.call: " + jsobject + "." + func);
+        String script = new String("." + func + "(");
+        for (int i = 0; args != null && i < args.length; i++)
+            script += (i > 0 ? "," : "") + convertValueJ2JS(args[i]);
+        script += ")";
+        return evaluate(script, false);
+    }
+    public Object eval(String s) throws netscape.javascript.JSException {
+        return evaluate(s, true);
+    }
+    public boolean equals(Object obj) {
+        Main.info("JSObject.equals");
+        return super.equals(obj);
+    }
+    public Object getMember(String name) throws netscape.javascript.JSException {
+        Main.info("JSObject.getMember: " + jsobject + "." + name);
+        return evaluate("." + name, false);
+    }
+    public void setMember(String name, java.lang.Object o) throws netscape.javascript.JSException {
+        Main.info("JSObject.setMember: " + jsobject + "." + name);
+        evaluate("." + name + "=" + convertValueJ2JS(o), false);
+    }
+    public void removeMember(String name) throws netscape.javascript.JSException {
+        Main.info("JSObject.removeMember: " + jsobject + "." + name);
+        evaluate("." + name + "=null", false);
+    }
+    /* get array element; JS: this[index] */
+    public Object getSlot(int index)throws netscape.javascript.JSException {
+        Main.info("JSObject.getSlot: " + jsobject + "[" + index + "]");
+        return evaluate("[" + index + "]", false);
+    }
+    public void setSlot(int index, Object o) throws netscape.javascript.JSException {
+        Main.info("JSObject.setSlot: " + jsobject + "[" + index + "]");
+        evaluate("[" + index + "]=" + convertValueJ2JS(o), false);
+    }
+    public String toString(){
+        Main.info("JSObject.toString: " + jsobject);
+        return new String(jsobject);
+    }
+    public static JSObject getWindow(Applet a, int dummy) {
+        Main.info("JSObject.getWindow");
+        return new JSObject(a, "[WINDOW]", 0);
+    }
+}