1 // Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL]
10 import org.bouncycastle.util.encoders.Base64;
12 /** Singleton class that provides all functionality in the xwt.* namespace */
13 public final class XWT extends JS.Obj {
15 public static final XWT singleton = new XWT();
16 private final JS xwtMath = new XWTMath();
17 private final JS xwtString = new XWTString();
19 /** each key is a string representing a filename which the user has already given XWT permission to write to */
20 private static Hashtable safeFiles = new Hashtable();
22 public Object get(Object name) {
23 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("clipboard")) return Platform.getClipBoard();
27 else if (name.equals("static")) return Static.getStatic("");
28 else if (name.equals("button")) {
29 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
30 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
31 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(1);
32 else return new Integer(0);
34 else return super.get(name);
37 public void put(Object name, Object value) {
38 if (name.equals("thread") && value != null && value instanceof JS.Callable) ThreadMessage.newthread((JS.Callable)value);
39 else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
40 else if (name.equals("proxyAuthorization")) {
41 // FIXME: undocumented, possibly insecure
42 Proxy.Authorization.authorization = value.toString();
43 Proxy.Authorization.waitingForUser.release();
44 } else super.put(name, value);
48 super.put("maxdim", new Integer(Short.MAX_VALUE));
49 super.put("origin", Main.origin);
50 super.put("altKeyName", Platform.altKeyName());
51 super.put("screenWidth", new Integer(Platform.getScreenWidth()));
52 super.put("screenHeight", new Integer(Platform.getScreenHeight()));
53 super.put("fileSeparator", File.separator);
54 super.put("homeDir", System.getProperty("user.home"));
55 super.put("tempDir", System.getProperty("java.io.tempdir"));
56 super.put("math", xwtMath);
57 super.put("string", xwtString);
59 super.put("newBrowserWindow", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
60 if (args.length() != 1 || args.elementAt(0) == null) return null;
61 Platform.newBrowserWindow(args.elementAt(0).toString());
65 super.put("parseInt",xwtString.get("parseInt"));
66 super.put("parseFloat",xwtString.get("parseFloat"));
68 super.put("yield", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
73 super.put("load", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
74 return Res.stringToResource(args.elementAt(0).toString());
77 super.put("theme", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
78 if (args.length() != 2) return null;
79 if (args.elementAt(0) == null || args.elementAt(1) == null) return null;
80 for(int i=1; i<args.length(); i++) {
81 if (args.elementAt(i) instanceof String) {
82 String from = (String)args.elementAt(0);
83 String to = (String)args.elementAt(i);
84 if (Log.on) Log.log(this, "retheming from " + from + " to " + to);
85 Resources.mapFrom.addElement(from);
86 Resources.mapTo.addElement(to);
89 JS.Callable callback = args.elementAt(args.length() - 1) instanceof JS.Callable ?
90 (JS.Callable)args.elementAt(args.length() - 1) : null;
91 Template.retheme(callback);
95 super.put("println", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
96 if (args.length() != 1) return null;
97 if (Log.on) Log.logJS(this, (args.elementAt(0) == null ? "**null**" : args.elementAt(0).toString()));
101 super.put("date", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
102 Log.log(XWT.class, "date not implemented");
103 //throw new Error("not implemented");
107 super.put("regexp", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
108 return new Regexp(args);
111 super.put("listfonts", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
112 Object[] fonts = Platform.listFonts();
113 JS.Array ret = new JS.Array();
114 for(int i=0; i<fonts.length; i++) ret.addElement(fonts[i]);
118 super.put("xmlrpc", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
119 if (args.length() != 1 || args.elementAt(0) == null) return null;
120 return new XMLRPC(args.elementAt(0).toString(), "");
123 super.put("soap", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
124 if (args.length() == 1 && args.elementAt(0) != null) return new SOAP(args.elementAt(0).toString(), "", null, null);
125 else if (args.length() == 2 && args.elementAt(0) != null && args.elementAt(1) != null)
126 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), null);
127 else if (args.length() == 3 && args.elementAt(0) != null && args.elementAt(1) != null && args.elementAt(2) != null)
128 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), args.elementAt(2).toString());
132 super.put("textwidth", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
133 if (args.length() < 1 || args.length() > 2) return null;
134 if (args.elementAt(0) == null || (args.length() == 2 && args.elementAt(1) == null)) return null;
135 String font = args.length() == 1 ? Platform.getDefaultFont() : args.elementAt(0).toString();
136 String text = args.length() == 1 ? args.elementAt(0).toString() : args.elementAt(1).toString();
137 return new Integer(Platform.stringWidth(font, text));
140 super.put("textheight", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
141 if (args.length() > 1) return null;
142 if (args.length() == 1 && args.elementAt(0) == null) return null;
143 String font = args.length() == 0 || args.elementAt(0) == null ? Platform.getDefaultFont() : args.elementAt(0).toString();
144 return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
147 super.put("newBox", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
148 if (args.length() > 0) Log.log(XWT.class, "DEPRECATED: xwt.newBox() with multiple arguments is deprecated; use xwt.newBox().apply()");
149 JS.Callable callback = null;
150 for(int i=1; i<args.length(); i++)
151 if (args.elementAt(i) instanceof JS.Callable && callback == null)
152 callback = (JS.Callable)args.elementAt(i);
154 if (!(args.length() == 0 || args.elementAt(0) == null))
155 Template.getTemplate(args.elementAt(0).toString(),
156 Template.defaultImportList).apply(ret, null, null, callback, 0, 1);
157 for(int i=1; i<args.length(); i++)
158 if (args.elementAt(i) instanceof Box)
159 ret.put(ret.numChildren(), (Box)args.elementAt(i));
160 for(int i=1; i<args.length(); i++)
161 if (args.elementAt(i) instanceof JS && !(args.elementAt(i) instanceof Box) && !(args.elementAt(i) instanceof JS.Callable)) {
162 JS s = (JS)args.elementAt(i);
163 Object[] keys = s.keys();
164 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), s.get(keys[j].toString()));
169 super.put("sleep", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
170 if (args != null && (args.length() != 1 || args.elementAt(0) == null)) return null;
171 int i = args == null ? 0 : Box.stoi(args.elementAt(0).toString());
176 super.put("openFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
177 if (args.length() != 1) return null;
178 String file = Platform.fileDialog(args.elementAt(0).toString(), false);
179 return file == null ? null : new ByteStream(file);
182 super.put("saveFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
183 if (args.length() != 2) return null;
184 if (!(args.elementAt(1) instanceof ByteStream)) return null;
185 String file = args.elementAt(0).toString();
186 if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
187 file = Platform.fileDialog(file, true);
188 if (file == null) return null;
189 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
192 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
194 } catch (IOException e) {
195 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
196 if (Log.on) Log.log(ByteStream.class, e);
197 throw new JS.Exn("error while writing a ByteStream to a file");
201 super.put("saveFileAs", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
202 if (args.length() != 2) return null;
203 if (!(args.elementAt(1) instanceof ByteStream)) return null;
204 String file = args.elementAt(0).toString();
205 file = Platform.fileDialog(file, true);
206 if (file == null) return null;
207 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
209 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
211 } catch (IOException e) {
212 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
213 if (Log.on) Log.log(ByteStream.class, e);
214 throw new JS.Exn("error while writing a ByteStream to a file");
218 super.put("utfEncode", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
219 if (args == null || args.length() != 1) return null;
220 return new ByteStream(args.elementAt(0).toString().getBytes());
223 super.put("parseHTML", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
224 if (args == null || args.length() != 1 || args.elementAt(0) == null) return null;
226 if (args.elementAt(0) instanceof ByteStream) {
227 return HTML.parseReader(new InputStreamReader(((ByteStream)args.elementAt(0)).getInputStream()));
229 return HTML.parseReader(new StringReader(args.elementAt(0).toString()));
231 } catch (IOException e) {
232 if (Log.on) Log.log(HTML.class, "IO Exception while parsing HTML");
233 if (Log.on) Log.log(HTML.class, e);
234 throw new JS.Exn("error while parsing HTML");
239 super.put("recursivePrintObject", new JS.Callable() { public Object call(JS.Array args) {
240 if (args.length() != 1) return null;
241 recurse("", "", args.elementAt(0));
245 super.put("loadArchive", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
246 if (!ThreadMessage.suspendThread()) return null;
248 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
249 URL u = new URL(args.elementAt(0).toString());
251 JS.Callable callback = null;
252 if (args.length() == 2 && args.elementAt(1) != null && args.elementAt(1) instanceof JS.Callable)
253 callback = (JS.Callable)args.elementAt(1);
255 if (!u.getFile().endsWith(".xwar")) {
256 if (Log.on) Log.log(this, "Error: archive names must end with .xwar: " + u.getFile());
257 throw new JS.Exn("Error: archive names must end with .xwar: " + u.getFile());
260 if (u.getProtocol().equals("http")) {
261 HTTP http = new HTTP(u.toString());
262 if (Main.originAddr == null) {
264 Main.originHost = u.getHost();
265 Main.originAddr = InetAddress.getByName(Main.originHost);
266 } catch (UnknownHostException e) {
267 if (Log.on) Log.log(this, "couldn't resolve " + u.getHost() + "; proceeding without permissions");
268 Main.originAddr = InetAddress.getByName("0.0.0.0");
271 Main.originAddr = InetAddress.getByName("0.0.0.0");
273 HTTP.HTTPInputStream in = http.GET();
274 Resources.loadArchive(in, in.getContentLength(), callback);
276 } else if (u.getProtocol().equals("file")) {
277 if (Main.originAddr != null) {
278 if (Log.on) Log.log(this, "scripts downloaded from the network may not load xwars from the local filesystem");
279 throw new JS.Exn("scripts downloaded from the network may not load xwars from the local filesystem");
281 Resources.loadArchive(new FileInputStream(u.getFile()), (int)new File(u.getFile()).length(), callback);
284 if (Log.on) Log.log(this, "unknown protocol \"" + u.getProtocol() + "\"");
285 throw new JS.Exn("unknown protocol \"" + u.getProtocol() + "\"");
288 } catch (MalformedURLException me) {
289 if (Log.on) Log.log(this, "Malformed URL: " + args.elementAt(0));
290 if (Log.on) Log.log(this, me);
291 throw new JS.Exn(me.toString());
293 } catch (IOException ioe) {
294 if (Log.on) Log.log(this, "IOException while loading archive:");
295 if (Log.on) Log.log(this, ioe);
296 throw new JS.Exn(ioe.toString());
299 ThreadMessage.resumeThread();
305 super.put("prefetchImage", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
306 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
307 ImageDecoder.getImageDecoder(args.elementAt(0).toString(),
308 args.length() > 1 && args.elementAt(1) instanceof JS.Callable ? (JS.Callable)args.elementAt(1) : null);
313 private static void recurse(String indent, String name, Object o) {
314 if (!name.equals("")) name += " : ";
317 Log.logJS(indent + name + "<null>");
319 } else if (o instanceof JS.Array) {
320 Log.logJS(indent + name + "<array>");
321 JS.Array na = (JS.Array)o;
322 for(int i=0; i<na.length(); i++)
323 recurse(indent + " ", i + "", na.elementAt(i));
325 } else if (o instanceof JS) {
326 Log.logJS(indent + name + "<object>");
328 Object[] keys = s.keys();
329 for(int i=0; i<keys.length; i++)
330 recurse(indent + " ", keys[i].toString(),
331 (keys[i] instanceof Integer) ?
332 s.get(((Integer)keys[i])) : s.get(keys[i].toString()));
335 Log.logJS(indent + name + o);
341 public static void sleep(int i) {
342 java.lang.Thread thread = java.lang.Thread.currentThread();
343 if (!(thread instanceof ThreadMessage)) {
344 if (Log.on) Log.log(XWT.class, "cannot sleep() or yield() in the foreground thread");
346 ThreadMessage mythread = (ThreadMessage)thread;
347 mythread.done.release();
348 if (i > 0) try { java.lang.Thread.sleep(i); } catch (Exception e) { }
349 MessageQueue.add(mythread);
354 private static class XWTMath extends JS.Obj {
356 JS gs = new JS.GlobalScope();
357 put("isNaN",gs.get("isNaN"));
358 put("isFinite",gs.get("isFinite"));
359 put("NaN",gs.get("NaN"));
360 put("Infinity",gs.get("Infinity"));
363 public Object get(Object key) {
364 Object ret = super.get(key);
365 if(ret == null) ret = JS.Math.get(key);
369 private static class XWTString extends JS.Obj {
371 JS gs = new JS.GlobalScope();
372 put("parseInt",gs.get("parseInt"));
373 put("parseFloat",gs.get("parseFloat"));
374 put("decodeURI",gs.get("decodeURI"));
375 put("decodeURIComponent",gs.get("decodeURIComponent"));
376 put("encodeURI",gs.get("encodeURI"));
377 put("encodeURIComponent",gs.get("encodeURIComponent"));
378 put("escape",gs.get("escape"));
379 put("unescape",gs.get("unescape"));
380 put("fromCharCode",gs.get("stringFromCharCode"));