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 private Cache subCache = new Cache(20);
20 private Sub getSub(String s) {
21 Sub ret = (Sub)subCache.get(s);
22 if (ret == null) subCache.put(s, ret = new Sub(s));
26 /** lets us put multi-level get/put/call keys all in the same method */
27 private class Sub extends JS {
29 Sub(String key) { this.key = key; }
30 public String toString() { return "XWTSUB " + key; }
31 public void put(Object key, Object val) throws JSExn { XWT.this.put(this.key + "." + key, val); }
32 public Object get(Object key) throws JSExn { return XWT.this.get(this.key + "." + key); }
33 public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
34 return XWT.this.callMethod(this.key, a0, a1, a2, rest, nargs);
36 public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
37 return XWT.this.callMethod(this.key + "." + method, a0, a1, a2, rest, nargs);
41 public Object get(Object name) throws JSExn {
42 if (name instanceof String && ((String)name).length() == 0) return rr;
44 case "math": return xwtMath;
45 case "string": return xwtString;
46 case "date": return METHOD;
47 case "origin": return Main.origin;
48 case "box": return new Box();
49 case "log": return getSub("log");
50 case "ui": return getSub("ui");
51 case "thread": return getSub("thread");
52 case "font": return getSub("font");
53 case "font.sansserif": return Main.builtin.get("fonts/vera/Vera.ttf");
54 case "font.monospace": return Main.builtin.get("fonts/vera/VeraMono.ttf");
55 case "font.serif": return Main.builtin.get("fonts/vera/VeraSe.ttf");
56 case "ui.key": return getSub("ui.key");
57 case "ui.key.alt": return Surface.alt ? T : F;
58 case "ui.key.control": return Surface.control ? T : F;
59 case "ui.key.shift": return Surface.shift ? T : F;
60 case "ui.clipboard": return Platform.getClipBoard();
61 case "ui.maxdim": return new Integer(Short.MAX_VALUE);
62 case "ui.key.name": return getSub("ui.key.name");
63 case "ui.key.name.alt": return Platform.altKeyName();
64 case "ui.screen": return getSub("ui.screen");
65 case "ui.screen.width": return new Integer(Platform.getScreenWidth());
66 case "ui.screen.height": return new Integer(Platform.getScreenHeight());
67 case "fs.home": return System.getProperty("user.home");
68 case "fs.temp": return System.getProperty("java.io.tempdir");
69 case "ui.mouse": return getSub("ui.mouse");
70 case "res": return getSub("res");
71 case "ui.mouse.button":
72 if (Surface.button1 && !Surface.button2 && !Surface.button3) return N(1);
73 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return N(2);
74 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return N(3);
76 case "undocumented": return getSub("undocumented");
77 case "undocumented.internal": return getSub("undocumented.internal");
78 case "thread.yield": return METHOD;
79 case "thread.sleep": return METHOD;
80 case "res.watch": return METHOD;
81 case "res.unzip": return METHOD;
82 case "res.uncab": return METHOD;
83 case "res.cache": return METHOD;
84 case "res.url": return METHOD;
85 case "soap": return METHOD;
86 case "apply": return METHOD;
87 case "graft": return METHOD;
88 case "ui.browser": return METHOD;
89 case "clone": return METHOD;
90 case "log.print": return METHOD;
91 case "log.println": return METHOD;
92 case "log.dump": return METHOD;
93 case "regexp": return METHOD;
94 case "rpc.xml": return METHOD;
95 case "rpc.soap": return METHOD;
96 case "crypto.rsa": return METHOD;
97 case "crypto.md5": return METHOD;
98 case "crypto.sha1": return METHOD;
99 case "crypto.rc4": return METHOD;
100 case "stream.parse.html": return METHOD;
101 case "stream.parse.xml": return METHOD;
102 case "stream.parse.utf8": return METHOD;
104 return super.get(name);
107 public void put(Object name, final Object value) throws JSExn {
109 case "thread": Scheduler.add((JSFunction)value); return;
110 case "ui.clipboard": Platform.setClipBoard((String)value); return;
111 case "ui.frame": Platform.createSurface((Box)value, true, true); return;
112 case "ui.window": Platform.createSurface((Box)value, false, true); return;
113 case "undocumented.internal.proxyAuthorization":
114 HTTP.Proxy.Authorization.authorization = value.toString();
115 HTTP.Proxy.Authorization.waitingForUser.release(); return;
118 throw new JSExn("attempted to put unknown property: xwt."+name);
121 public Object callMethod(Object name, Object a, Object b, Object c, Object[] rest, int nargs) throws JSExn {
124 case "date": return new JSDate(a, b, c, rest, nargs);
125 case "rpc.soap": return null;//new SOAP((String)a, "", (String)b, (String)c);
127 if (a instanceof Box) throw new JSExn("can't graft onto Boxes");
128 if (a instanceof String) throw new JSExn("can't graft onto Strings");
129 if (a instanceof Number) throw new JSExn("can't graft onto Numbers");
130 if (a instanceof Res) return new Res.Graft((Res)a, b, c);
131 // FEATURE: grafting onto JS
132 throw new JSExn("cannot graft onto "+a.getClass());
138 case "thread.yield": sleep(0); return null;
143 case "ui.browser": Platform.newBrowserWindow((String)a); return null;
144 case "clone": return new XWT((Res)a);
145 case "res.unzip": return new Res.Zip((Res)a);
146 case "res.uncab": return new Res.Cab((Res)a);
147 case "res.cache": try { return new Res.CachedRes((Res)a, "resources", true); }
148 catch (Res.NotCacheableException e) { throw new JSExn("this resource cannot be cached"); }
149 case "res.url": return url2res((String)a);
150 case "thread.sleep": sleep(JS.toInt(a)); return null;
151 case "log.print": Log.logJS(this, a== null ? "**null**" : a.toString()); 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 "crypto.rsa": /* FEATURE */ return null;
157 case "crypto.md5": /* FEATURE */ return null;
158 case "crypto.sha1": /* FEATURE */ return null;
159 case "crypto.rc4": /* FEATURE */ return null;
160 case "stream.parse.html": /* FEATURE */ return null;
161 case "stream.parse.xml": /* FEATURE */ return null;
162 case "stream.parse.utf8": /* FEATURE */ return null;
167 case "res.watch": return new Res.ProgressWatcher((Res)a, (JSFunction)b);
169 if (b instanceof Res) Template.getTemplate((Res)b).apply((Box)a, XWT.this);
171 JS to = (JS)a, from = (JS)b; Object k;
172 for (Enumeration e = from.keys(); e.hasMoreElements();) {
173 k = e.nextElement(); to.put(k, from.get(k));
180 } catch (RuntimeException e) {
181 // FIXME: maybe JSExn should take a second argument, Exception
182 Log.log(this, "xwt."+name+"() threw: "+e);
183 throw new JSExn("invalid argument for xwt object method "+name+"()");
186 throw new JSExn("invalid number of arguments for xwt object method "+name+"()");
189 public Res url2res(String url) throws JSExn {
190 if (url.startsWith("http://")) return new Res.HTTP(url);
191 else if (url.startsWith("https://")) return new Res.HTTP(url);
192 else if (url.startsWith("data:")) return new Res.ByteArray(Base64.decode(url.substring(5)), null);
193 else if (url.startsWith("utf8:")) return new Res.ByteArray(url.substring(5).getBytes(), null);
194 else throw new JSExn("invalid resource specifier " + url);
197 public static void sleep(final int i) throws JSExn {
199 final JS.UnpauseCallback callback = JS.pause();
200 final long currentTime = System.currentTimeMillis();
201 new Thread() { public void run() {
202 try { Thread.sleep(i); } catch (InterruptedException e) { }
203 Scheduler.add(callback);
205 } catch (JS.NotPauseableException npe) {
206 throw new JSExn("you cannot sleep or yield in the foreground thread");
210 public static final JSMath xwtMath = new JSMath() {
211 private JS gs = new JSScope.Global();
212 public String toString() { return "XWTMATH"; }
213 public Object get(Object key) throws JSExn {
215 case "isNaN": return gs.get("isNaN");
216 case "isFinite": return gs.get("isFinite");
217 case "NaN": return gs.get("NaN");
218 case "Infinity": return gs.get("Infinity");
220 return super.get(key);
224 public static final JS xwtString = new JS() {
225 private JS gs = new JSScope.Global();
226 public void put(Object key, Object val) { }
227 public Object get(Object key) throws JSExn {
229 case "parseInt": return gs.get("parseInt");
230 case "parseFloat": return gs.get("parseFloat");
231 case "decodeURI": return gs.get("decodeURI");
232 case "decodeURIComponent": return gs.get("decodeURIComponent");
233 case "encodeURI": return gs.get("encodeURI");
234 case "encodeURIComponent": return gs.get("encodeURIComponent");
235 case "escape": return gs.get("escape");
236 case "unescape": return gs.get("unescape");
237 case "fromCharCode": return gs.get("stringFromCharCode");
243 private class XMLHelper extends XML {
244 Vector obStack = new Vector();
245 public XMLHelper() { super(BUFFER_SIZE); }
246 public void startElement(XML.Element c) throws XML.SchemaException {
249 o.put("$name", c.localName);
250 for(int i=0; i<c.len; i++) o.put(c.keys[i], c.vals[i]);
251 o.put("$numchildren", new Integer(0));
252 obStack.addElement(o);
253 } catch (JSExn jse) {
254 throw new Error("this should never happen");
257 public void endElement(XML.Element c) throws XML.SchemaException {
259 if (obStack.size() == 1) return;
260 JS me = (JS)obStack.lastElement();
261 obStack.setSize(obStack.size() - 1);
262 JS parent = (JS)obStack.lastElement();
263 int numchildren = ((Integer)parent.get("$numchildren")).intValue();
264 parent.put("$numchildren", new Integer(numchildren + 1));
265 parent.put(new Integer(numchildren), me);
266 } catch (JSExn jse) {
267 throw new Error("this should never happen");
270 public void characters(char[] ch, int start, int length) throws XML.SchemaException {
272 String s = new String(ch, start, length);
273 JS parent = (JS)obStack.lastElement();
274 int numchildren = ((Integer)parent.get("$numchildren")).intValue();
275 Object lastChild = parent.get(new Integer(numchildren - 1));
276 if (lastChild instanceof String) {
277 parent.put(new Integer(numchildren - 1), lastChild + s);
279 parent.put("$numchildren", new Integer(numchildren + 1));
280 parent.put(new Integer(numchildren), s);
282 } catch (JSExn jse) {
283 throw new Error("this should never happen");
286 public void whitespace(char[] ch, int start, int length) {}
287 public JS doParse(InputStream is) throws JSExn {
289 BufferedReader r = new BufferedReader(new InputStreamReader(is));
291 } catch (XML.XMLException e) {
292 throw new JSExn("error parsing XML: " + e.toString());
293 } catch (IOException e) {
294 if (Log.on) Log.log(this, "IO Exception while reading from file");
295 if (Log.on) Log.log(this, e);
296 throw new JSExn("error reading from Resource");
298 return obStack.size() >= 1 ? (JS)obStack.elementAt(0) : null;