1 // Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL]
10 import org.xwt.translators.*;
11 import org.bouncycastle.util.encoders.Base64;
13 /** Singleton class that provides all functionality in the xwt.* namespace */
14 public final class XWT extends JS {
17 public XWT(Res rr) { this.rr = rr; }
19 /** lets us put multi-level get/put/call keys all in the same method */
20 private class Sub extends JS {
22 Sub(String key) { this.key = key; }
23 public String toString() { return "XWTSUB " + key; }
24 public void put(Object key, Object val) { XWT.this.put(this.key + "." + key, val); }
25 public Object get(Object key) { return XWT.this.get(this.key + "." + key); }
26 public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
27 return XWT.this.callMethod(this.key, a0, a1, a2, rest, nargs);
29 public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
30 return XWT.this.callMethod(this.key + "." + method, a0, a1, a2, rest, nargs);
34 public Object get(Object name) {
36 case "math": return xwtMath;
37 case "string": return xwtString;
38 case "date": return METHOD;
39 case "origin": return Main.origin;
40 case "box": return new Box();
41 case "log": return new Sub("log");
42 case "ui": return new Sub("ui");
43 case "thread": return new Sub("thread");
44 case "font": return new Sub("font");
45 case "font.sansserif": return Main.builtin.get("fonts/vera/Vera.ttf");
46 case "font.monospace": return Main.builtin.get("fonts/vera/VeraMono.ttf");
47 case "font.serif": return Main.builtin.get("fonts/vera/VeraSe.ttf");
48 case "ui.key": return new Sub("ui.key");
49 case "ui.key.alt": return Surface.alt ? Boolean.TRUE : Boolean.FALSE;
50 case "ui.key.control": return Surface.control ? Boolean.TRUE : Boolean.FALSE;
51 case "ui.key.shift": return Surface.shift ? Boolean.TRUE : Boolean.FALSE;
52 case "ui.clipboard": return Platform.getClipBoard();
53 case "ui.maxdim": return new Integer(Short.MAX_VALUE);
54 case "ui.key.name": return new Sub("ui.key.name");
55 case "ui.key.name.alt": return Platform.altKeyName();
56 case "ui.screen": return new Sub("ui.screen");
57 case "ui.screen.width": return new Integer(Platform.getScreenWidth());
58 case "ui.screen.height": return new Integer(Platform.getScreenHeight());
59 case "fs.home": return System.getProperty("user.home");
60 case "fs.temp": return System.getProperty("java.io.tempdir");
61 case "ui.mouse": return new Sub("ui.mouse");
62 case "res": return new Sub("res");
63 case "ui.mouse.button":
64 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
65 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(2);
66 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(3);
68 case "undocumented": return new Sub("undocumented");
69 case "undocumented.internal": return new Sub("undocumented.internal");
70 case "thread.yield": return METHOD;
71 case "thread.sleep": return METHOD;
72 case "res.watch": return METHOD;
73 case "res.unzip": return METHOD;
74 case "res.uncab": return METHOD;
75 case "res.cache": return METHOD;
76 case "res.url": return METHOD;
77 case "soap": return METHOD;
78 case "apply": return METHOD;
79 case "graft": return METHOD;
80 case "ui.browser": return METHOD;
81 case "clone": return METHOD;
82 case "log.println": return METHOD;
83 case "log.dump": return METHOD;
84 case "regexp": return METHOD;
85 case "rpc.xml": return METHOD;
86 case "rpc.soap": return METHOD;
87 case "crypto.rsa": return METHOD;
88 case "crypto.md5": return METHOD;
89 case "crypto.sha1": return METHOD;
90 case "crypto.rc4": return METHOD;
91 case "stream.parse.html": return METHOD;
92 case "stream.parse.xml": return METHOD;
93 case "stream.parse.utf8": return METHOD;
98 public void put(Object name, final Object value) {
101 Scheduler.add(new Scheduler.Task() {
102 public void perform() throws JSExn {
104 JS.invokePauseable((JSFunction)value);
105 } catch (JS.PausedException pe) {
106 // okay; wait for ourselves to be re-enqueued
110 case "ui.clipboard": Platform.setClipBoard((String)value);
111 case "ui.frame": Platform.createSurface((Box)value, true, true);
112 case "ui.window": Platform.createSurface((Box)value, false, true);
113 case "undocumented.internal.proxyAuthorization":
114 HTTP.Proxy.Authorization.authorization = value.toString();
115 HTTP.Proxy.Authorization.waitingForUser.release();
119 public Object callMethod(Object name, Object a, Object b, Object c, Object[] rest, int nargs) throws JSExn {
120 if (name.equals("date")) return new JSDate(a, b, c, rest, nargs);
121 else if (nargs == 0 && name.equals("thread.yield")) { sleep(0); return null; }
122 else if (nargs == 2) {
124 case "res.watch": return new Res.ProgressWatcher((Res)a, (JSFunction)b);
125 case "soap": /* return new SOAP((String)a, "", (String)b, null); */
127 Template.getTemplate((Res)b).apply((Box)a, XWT.this);
130 } else if (nargs == 3 && name.equals("soap")) {
132 if (name.equals("soap"))
133 return new SOAP((String)a, "", (String)b, (String)c);
136 } else if (nargs == 1) {
138 case "ui.browser": Platform.newBrowserWindow((String)a); return null;
139 case "clone": return new XWT((Res)a);
140 case "res.unzip": return new Res.Zip((Res)a);
141 case "res.uncab": return new Res.Cab((Res)a);
142 case "res.cache": try { return new Res.CachedRes((Res)a, "resources", true); }
143 catch (Res.NotCacheableException e) { throw new JSExn("this resource cannot be cached"); }
145 String url = (String)a;
146 if (url.startsWith("http://")) return new Res.HTTP(url);
147 else if (url.startsWith("https://")) return new Res.HTTP(url);
148 else if (url.startsWith("data:")) return new Res.ByteArray(Base64.decode(url.substring(5)), null);
149 else if (url.startsWith("utf8:")) return new Res.ByteArray(url.substring(5).getBytes(), null);
150 throw new JSExn("invalid resource specifier " + url);
151 case "thread.sleep": sleep(JS.toInt(a)); return null;
152 case "log.println": Log.logJS(this, a== null ? "**null**" : a.toString()); return null;
153 case "log.dump": Log.recursiveLog("","",a); return null;
154 case "regexp": return new JSRegexp(a, null);
155 case "rpc.xml": return new XMLRPC((String)a, "");
156 case "rpc.soap": /* return new SOAP((String)a, "", null, null); */
157 case "crypto.rsa": /* FEATURE */ break;
158 case "crypto.md5": /* FEATURE */ break;
159 case "crypto.sha1": /* FEATURE */ break;
160 case "crypto.rc4": /* FEATURE */ break;
161 case "stream.parse.html": /* FEATURE */ break;
162 case "stream.parse.xml": /* FEATURE */ break;
163 case "stream.parse.utf8": /* FEATURE */ break;
169 public static void sleep(final int i) throws JSExn {
171 final JS.UnpauseCallback callback = JS.pause();
172 final long currentTime = System.currentTimeMillis();
175 try { Thread.sleep(i); } catch (InterruptedException e) { }
176 Scheduler.add(new Scheduler.Task() {
177 public void perform() throws JSExn {
178 callback.unpause(null);
183 } catch (JS.NotPauseableException npe) {
184 throw new JSExn("you cannot sleep or yield in the foreground thread");
188 public static final JSMath xwtMath = new JSMath() {
189 private JS gs = new JSScope.Global();
190 public String toString() { return "XWTMATH"; }
191 public Object get(Object key) throws JSExn {
193 case "isNaN": return gs.get("isNaN");
194 case "isFinite": return gs.get("isFinite");
195 case "NaN": return gs.get("NaN");
196 case "Infinity": return gs.get("Infinity");
198 return super.get(key);
202 public static final JS xwtString = new JS() {
203 private JS gs = new JSScope.Global();
204 public void put(Object key, Object val) { }
205 public Object get(Object key) throws JSExn {
207 case "parseInt": return gs.get("parseInt");
208 case "parseFloat": return gs.get("parseFloat");
209 case "decodeURI": return gs.get("decodeURI");
210 case "decodeURIComponent": return gs.get("decodeURIComponent");
211 case "encodeURI": return gs.get("encodeURI");
212 case "encodeURIComponent": return gs.get("encodeURIComponent");
213 case "escape": return gs.get("escape");
214 case "unescape": return gs.get("unescape");
215 case "fromCharCode": return gs.get("stringFromCharCode");
221 private class XMLHelper extends XML {
222 Vector obStack = new Vector();
223 public XMLHelper() { super(BUFFER_SIZE); }
224 public void startElement(XML.Element c) throws XML.SchemaException {
227 o.put("$name", c.localName);
228 for(int i=0; i<c.len; i++) o.put(c.keys[i], c.vals[i]);
229 o.put("$numchildren", new Integer(0));
230 obStack.addElement(o);
231 } catch (JSExn jse) {
232 throw new Error("this should never happen");
235 public void endElement(XML.Element c) throws XML.SchemaException {
237 if (obStack.size() == 1) return;
238 JS me = (JS)obStack.lastElement();
239 obStack.setSize(obStack.size() - 1);
240 JS parent = (JS)obStack.lastElement();
241 int numchildren = ((Integer)parent.get("$numchildren")).intValue();
242 parent.put("$numchildren", new Integer(numchildren + 1));
243 parent.put(new Integer(numchildren), me);
244 } catch (JSExn jse) {
245 throw new Error("this should never happen");
248 public void characters(char[] ch, int start, int length) throws XML.SchemaException {
250 String s = new String(ch, start, length);
251 JS parent = (JS)obStack.lastElement();
252 int numchildren = ((Integer)parent.get("$numchildren")).intValue();
253 Object lastChild = parent.get(new Integer(numchildren - 1));
254 if (lastChild instanceof String) {
255 parent.put(new Integer(numchildren - 1), lastChild + s);
257 parent.put("$numchildren", new Integer(numchildren + 1));
258 parent.put(new Integer(numchildren), s);
260 } catch (JSExn jse) {
261 throw new Error("this should never happen");
264 public void whitespace(char[] ch, int start, int length) {}
265 public JS doParse(InputStream is) throws JSExn {
267 BufferedReader r = new BufferedReader(new InputStreamReader(is));
269 } catch (XML.XMLException e) {
270 throw new JSExn("error parsing XML: " + e.toString());
271 } catch (IOException e) {
272 if (Log.on) Log.log(this, "IO Exception while reading from file");
273 if (Log.on) Log.log(this, e);
274 throw new JSExn("error reading from Resource");
276 return obStack.size() >= 1 ? (JS)obStack.elementAt(0) : null;