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("textwidth")) return textwidth;
32 else if (name.equals("textheight")) return textheight;
33 else if (name.equals("newBox")) return newBox;
34 else if (name.equals("soap")) return soap;
35 else if (name.equals("xmlrpc")) return xmlrpc;
36 else if (name.equals("clipboard")) return Platform.getClipBoard();
37 else if (name.equals("altKeyName")) return Platform.altKeyName();
38 else if (name.equals("static")) return Static.getStatic("");
39 else if (name.equals("theme")) return theme;
40 else if (name.equals("button")) {
41 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
42 else 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 return new Integer(0);
46 else if (name.equals("println")) return println;
47 else if (name.equals("math")) return org.xwt.util.JSObject.defaultObjects.get("Math", null);
48 else return super.get(name, start);
51 public void put(String name, Scriptable start, Object value) {
52 if (name == null) return;
53 else if (name.equals("thread") && value != null && value instanceof Function) ThreadMessage.newthread((Function)value);
54 else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
55 else super.put(name, start, value);
59 // JSFunction Instances ///////////////////////////////////////////////////////////////////
61 /** Helper class for defining functions. */
62 private static abstract class JSFunction extends JSObject implements Function {
63 JSFunction() { setSeal(true); }
64 public Scriptable construct(Context cx, Scriptable scope, java.lang.Object[] args) { return null; }
67 private static final JSFunction yield = new JSFunction() {
68 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
69 sleep.call(cx, null, null, null);
74 private static final JSFunction println = new JSFunction() {
75 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
78 Log.log(cx.interpreterSourceFile, args[0] == null ? "null" : args[0].toString());
83 private static final JSFunction date = new JSFunction() {
84 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
85 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "Date", args);
86 } catch (Exception e) {
87 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
88 if (Log.on) Log.log(this, e);
94 private static final JSFunction regexp = new JSFunction() {
95 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
96 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "Regexp", args);
97 } catch (Exception e) {
98 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
99 if (Log.on) Log.log(this, e);
105 private static final JSFunction listfonts = new JSFunction() {
106 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
107 return Context.enter().newArray(org.xwt.util.JSObject.defaultObjects, Platform.listFonts());
111 private static final JSFunction theme = new JSFunction() {
112 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
113 if (args.length != 2) return null;
114 if (args[0] == null || args[1] == null) return null;
115 Template.retheme(args[0].toString(), args[1].toString());
120 private static final JSFunction xmlrpc = new JSFunction() {
121 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
122 if (args.length != 1 || args[0] == null) return null;
123 return new XMLRPC(args[0].toString(), "");
127 private static final JSFunction soap = new JSFunction() {
128 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
129 if (args.length == 1 && args[0] != null) return new SOAP(args[0].toString(), "", null, null);
130 else if (args.length == 2 && args[0] != null && args[1] != null)
131 return new SOAP(args[0].toString(), "", args[1].toString(), null);
132 else if (args.length == 3 && args[0] != null && args[1] != null && args[2] != null)
133 return new SOAP(args[0].toString(), "", args[1].toString(), args[2].toString());
138 private static final JSFunction textwidth = new JSFunction() {
139 public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) throws JavaScriptException {
140 if (args.length < 1 || args.length > 2) return null;
141 if (args[0] == null || (args.length == 2 && args[1] == null)) return null;
142 String font = args.length == 1 ? Platform.getDefaultFont() : args[0].toString();
143 String text = args.length == 1 ? args[0].toString() : args[1].toString();
144 XWF xwf = XWF.getXWF(font);
145 if (xwf == null) return new Integer(Platform.stringWidth(font, text));
146 else return new Integer(xwf.stringWidth(text));
151 private static final JSFunction textheight = new JSFunction() {
152 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
153 if (args.length > 1) return null;
154 if (args.length == 1 && args[0] == null) return null;
155 String font = args.length == 0 || args[0] == null ? Platform.getDefaultFont() : args[0].toString();
156 XWF xwf = XWF.getXWF(font);
157 if (xwf == null) return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
158 else return new Integer(xwf.getMaxAscent() + xwf.getMaxDescent());
162 private static final JSFunction newBox = new JSFunction() {
163 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
164 Box ret = new Box(args.length == 0 || args[0] == null ? "box" : args[0].toString(), Template.defaultImportList);
165 for(int i=1; i<args.length; i++)
166 if (args[i] instanceof Box)
167 ret.put(ret.numChildren(), null, (Box)args[i]);
168 for(int i=1; i<args.length; i++)
169 if (args[i] instanceof Scriptable && !(args[i] instanceof Box)) {
170 Scriptable s = (Scriptable)args[i];
171 Object[] keys = s.getIds();
172 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), null, s.get(keys[j].toString(), s));
178 private static final JSFunction sleep = new JSFunction() {
179 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
180 if (args != null && (args.length != 1 || args[0] == null)) return null;
181 int i = args == null ? 0 : SpecialBoxProperty.stoi(args[0].toString());
183 Thread thread = Thread.currentThread();
184 if (!(thread instanceof ThreadMessage)) {
185 if (Log.on) Log.log(this, "cannot sleep() or yield() in the foreground thread");
188 ThreadMessage mythread = (ThreadMessage)thread;
189 mythread.done.release();
191 if (i > 0) try { Thread.sleep(i); } catch (Exception e) { }
193 MessageQueue.add(mythread);