1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
9 import org.mozilla.javascript.*;
11 /** Singleton class that provides all functionality in the xwt.* namespace */
12 public final class XWT extends JSObject {
14 public static final XWT singleton = new XWT();
15 public String getClassName() { return "XWT"; }
16 private XWT() { setSeal(true); }
18 public Object get(String name, Scriptable start) {
19 if (name == null) return null;
20 else if (name.equals("maxdim")) return new Integer(Short.MAX_VALUE);
21 else if (name.equals("parseFloat")) return JSObject.defaultObjects.get("parseFloat", null);
22 else if (name.equals("parseInt")) return JSObject.defaultObjects.get("parseInt", null);
23 else if (name.equals("alt")) return Surface.alt ? Boolean.TRUE : Boolean.FALSE;
24 else if (name.equals("control")) return Surface.control ? Boolean.TRUE : Boolean.FALSE;
25 else if (name.equals("shift")) return Surface.shift ? Boolean.TRUE : Boolean.FALSE;
26 else if (name.equals("date")) return date;
27 else if (name.equals("listfonts")) return listfonts;
28 else if (name.equals("regexp")) return regexp;
29 else if (name.equals("sleep")) return sleep;
30 else if (name.equals("yield")) return yield;
31 else if (name.equals("newBrowserWindow")) return newBrowserWindow;
32 else if (name.equals("textwidth")) return textwidth;
33 else if (name.equals("textheight")) return textheight;
34 else if (name.equals("newBox")) return newBox;
35 else if (name.equals("soap")) return soap;
36 else if (name.equals("xmlrpc")) return xmlrpc;
37 else if (name.equals("clipboard")) return Platform.getClipBoard();
38 else if (name.equals("altKeyName")) return Platform.altKeyName();
39 else if (name.equals("static")) return Static.getStatic("");
40 else if (name.equals("theme")) return theme;
41 else if (name.equals("button")) {
42 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
43 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
44 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(1);
45 else return new Integer(0);
47 else if (name.equals("println")) return println;
48 else if (name.equals("math")) return org.xwt.util.JSObject.defaultObjects.get("Math", null);
49 else return super.get(name, start);
52 public void put(String name, Scriptable start, Object value) {
53 if (name == null) return;
54 else if (name.equals("thread") && value != null && value instanceof Function) ThreadMessage.newthread((Function)value);
55 else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
56 else super.put(name, start, value);
60 // JSFunction Instances ///////////////////////////////////////////////////////////////////
62 /** Helper class for defining functions. */
63 private static abstract class JSFunction extends JSObject implements Function {
64 JSFunction() { setSeal(true); }
65 public Scriptable construct(Context cx, Scriptable scope, java.lang.Object[] args) { return null; }
68 private static final JSFunction newBrowserWindow = new JSFunction() {
69 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
70 if (args.length != 1 || args[0] == null) return null;
71 Platform.newBrowserWindow(args[0].toString());
76 private static final JSFunction yield = new JSFunction() {
77 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
78 sleep.call(cx, null, null, null);
83 private static final JSFunction println = new JSFunction() {
84 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
87 Log.log(cx.interpreterSourceFile, args[0] == null ? "null" : args[0].toString());
92 private static final JSFunction date = new JSFunction() {
93 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
94 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "Date", args);
95 } catch (Exception e) {
96 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
97 if (Log.on) Log.log(this, e);
103 private static final JSFunction regexp = new JSFunction() {
104 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
105 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "RegExp", args);
106 } catch (Exception e) {
107 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
108 if (Log.on) Log.log(this, e);
114 private static final JSFunction listfonts = new JSFunction() {
115 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
116 return Context.enter().newArray(org.xwt.util.JSObject.defaultObjects, Platform.listFonts());
120 private static final JSFunction theme = new JSFunction() {
121 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
122 if (args.length != 2) return null;
123 if (args[0] == null || args[1] == null) return null;
124 Template.retheme(args[0].toString(), args[1].toString());
129 private static final JSFunction xmlrpc = new JSFunction() {
130 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
131 if (args.length != 1 || args[0] == null) return null;
132 return new XMLRPC(args[0].toString(), "");
136 private static final JSFunction soap = new JSFunction() {
137 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
138 if (args.length == 1 && args[0] != null) return new SOAP(args[0].toString(), "", null, null);
139 else if (args.length == 2 && args[0] != null && args[1] != null)
140 return new SOAP(args[0].toString(), "", args[1].toString(), null);
141 else if (args.length == 3 && args[0] != null && args[1] != null && args[2] != null)
142 return new SOAP(args[0].toString(), "", args[1].toString(), args[2].toString());
147 private static final JSFunction textwidth = new JSFunction() {
148 public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) throws JavaScriptException {
149 if (args.length < 1 || args.length > 2) return null;
150 if (args[0] == null || (args.length == 2 && args[1] == null)) return null;
151 String font = args.length == 1 ? Platform.getDefaultFont() : args[0].toString();
152 String text = args.length == 1 ? args[0].toString() : args[1].toString();
153 XWF xwf = XWF.getXWF(font);
154 if (xwf == null) return new Integer(Platform.stringWidth(font, text));
155 else return new Integer(xwf.stringWidth(text));
160 private static final JSFunction textheight = new JSFunction() {
161 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
162 if (args.length > 1) return null;
163 if (args.length == 1 && args[0] == null) return null;
164 String font = args.length == 0 || args[0] == null ? Platform.getDefaultFont() : args[0].toString();
165 XWF xwf = XWF.getXWF(font);
166 if (xwf == null) return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
167 else return new Integer(xwf.getMaxAscent() + xwf.getMaxDescent());
171 private static final JSFunction newBox = new JSFunction() {
172 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
173 Box ret = new Box(args.length == 0 || args[0] == null ? "box" : args[0].toString(), Template.defaultImportList);
174 for(int i=1; i<args.length; i++)
175 if (args[i] instanceof Box)
176 ret.put(ret.numChildren(), null, (Box)args[i]);
177 for(int i=1; i<args.length; i++)
178 if (args[i] instanceof Scriptable && !(args[i] instanceof Box)) {
179 Scriptable s = (Scriptable)args[i];
180 Object[] keys = s.getIds();
181 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), null, s.get(keys[j].toString(), s));
187 private static final JSFunction sleep = new JSFunction() {
188 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
189 if (args != null && (args.length != 1 || args[0] == null)) return null;
190 int i = args == null ? 0 : SpecialBoxProperty.stoi(args[0].toString());
192 Thread thread = Thread.currentThread();
193 if (!(thread instanceof ThreadMessage)) {
194 if (Log.on) Log.log(this, "cannot sleep() or yield() in the foreground thread");
197 ThreadMessage mythread = (ThreadMessage)thread;
198 mythread.done.release();
200 if (i > 0) try { Thread.sleep(i); } catch (Exception e) { }
202 MessageQueue.add(mythread);