1 // Copyright 2002 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("theme", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
74 if (args.length() != 2) return null;
75 if (args.elementAt(0) == null || args.elementAt(1) == null) return null;
76 for(int i=1; i<args.length(); i++) {
77 if (args.elementAt(i) instanceof String) {
78 String from = (String)args.elementAt(0);
79 String to = (String)args.elementAt(i);
80 if (Log.on) Log.log(this, "retheming from " + from + " to " + to);
81 Resources.mapFrom.addElement(from);
82 Resources.mapTo.addElement(to);
85 JS.Callable callback = args.elementAt(args.length() - 1) instanceof JS.Callable ?
86 (JS.Callable)args.elementAt(args.length() - 1) : null;
87 Template.retheme(callback);
91 super.put("println", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
92 if (args.length() != 1) return null;
93 if (Log.on) Log.logJS(this, (args.elementAt(0) == null ? "**null**" : args.elementAt(0).toString()));
97 super.put("date", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
98 Log.log(XWT.class, "date not implemented");
99 //throw new Error("not implemented");
103 super.put("regexp", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
104 return new Regexp(args);
107 super.put("listfonts", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
108 Object[] fonts = Platform.listFonts();
109 JS.Array ret = new JS.Array();
110 for(int i=0; i<fonts.length; i++) ret.addElement(fonts[i]);
114 super.put("xmlrpc", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
115 if (args.length() != 1 || args.elementAt(0) == null) return null;
116 return new XMLRPC(args.elementAt(0).toString(), "");
119 super.put("soap", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
120 if (args.length() == 1 && args.elementAt(0) != null) return new SOAP(args.elementAt(0).toString(), "", null, null);
121 else if (args.length() == 2 && args.elementAt(0) != null && args.elementAt(1) != null)
122 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), null);
123 else if (args.length() == 3 && args.elementAt(0) != null && args.elementAt(1) != null && args.elementAt(2) != null)
124 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), args.elementAt(2).toString());
128 super.put("textwidth", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
129 if (args.length() < 1 || args.length() > 2) return null;
130 if (args.elementAt(0) == null || (args.length() == 2 && args.elementAt(1) == null)) return null;
131 String font = args.length() == 1 ? Platform.getDefaultFont() : args.elementAt(0).toString();
132 String text = args.length() == 1 ? args.elementAt(0).toString() : args.elementAt(1).toString();
133 return new Integer(Platform.stringWidth(font, text));
136 super.put("textheight", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
137 if (args.length() > 1) return null;
138 if (args.length() == 1 && args.elementAt(0) == null) return null;
139 String font = args.length() == 0 || args.elementAt(0) == null ? Platform.getDefaultFont() : args.elementAt(0).toString();
140 return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
143 super.put("newBox", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
144 if (args.length() > 0) Log.log(XWT.class, "DEPRECATED: xwt.newBox() with multiple arguments is deprecated; use xwt.newBox().apply()");
145 JS.Callable callback = null;
146 for(int i=1; i<args.length(); i++)
147 if (args.elementAt(i) instanceof JS.Callable && callback == null)
148 callback = (JS.Callable)args.elementAt(i);
150 if (!(args.length() == 0 || args.elementAt(0) == null))
151 Template.getTemplate(args.elementAt(0).toString(),
152 Template.defaultImportList).apply(ret, null, null, callback, 0, 1);
153 for(int i=1; i<args.length(); i++)
154 if (args.elementAt(i) instanceof Box)
155 ret.put(ret.numChildren(), (Box)args.elementAt(i));
156 for(int i=1; i<args.length(); i++)
157 if (args.elementAt(i) instanceof JS && !(args.elementAt(i) instanceof Box) && !(args.elementAt(i) instanceof JS.Callable)) {
158 JS s = (JS)args.elementAt(i);
159 Object[] keys = s.keys();
160 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), s.get(keys[j].toString()));
165 super.put("sleep", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
166 if (args != null && (args.length() != 1 || args.elementAt(0) == null)) return null;
167 int i = args == null ? 0 : Box.stoi(args.elementAt(0).toString());
172 super.put("openFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
173 if (args.length() != 1) return null;
174 String file = Platform.fileDialog(args.elementAt(0).toString(), false);
175 return file == null ? null : new ByteStream(file);
178 super.put("saveFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
179 if (args.length() != 2) return null;
180 if (!(args.elementAt(1) instanceof ByteStream)) return null;
181 String file = args.elementAt(0).toString();
182 if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
183 file = Platform.fileDialog(file, true);
184 if (file == null) return null;
185 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
188 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
190 } catch (IOException e) {
191 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
192 if (Log.on) Log.log(ByteStream.class, e);
193 throw new JS.Exn("error while writing a ByteStream to a file");
197 super.put("saveFileAs", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
198 if (args.length() != 2) return null;
199 if (!(args.elementAt(1) instanceof ByteStream)) return null;
200 String file = args.elementAt(0).toString();
201 file = Platform.fileDialog(file, true);
202 if (file == null) return null;
203 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
205 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
207 } catch (IOException e) {
208 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
209 if (Log.on) Log.log(ByteStream.class, e);
210 throw new JS.Exn("error while writing a ByteStream to a file");
214 super.put("utfEncode", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
215 if (args == null || args.length() != 1) return null;
216 return new ByteStream(args.elementAt(0).toString().getBytes());
219 super.put("parseHTML", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
220 if (args == null || args.length() != 1 || args.elementAt(0) == null) return null;
222 if (args.elementAt(0) instanceof ByteStream) {
223 return HTML.parseReader(new InputStreamReader(((ByteStream)args.elementAt(0)).getInputStream()));
225 return HTML.parseReader(new StringReader(args.elementAt(0).toString()));
227 } catch (IOException e) {
228 if (Log.on) Log.log(HTML.class, "IO Exception while parsing HTML");
229 if (Log.on) Log.log(HTML.class, e);
230 throw new JS.Exn("error while parsing HTML");
235 super.put("recursivePrintObject", new JS.Callable() { public Object call(JS.Array args) {
236 if (args.length() != 1) return null;
237 recurse("", "", args.elementAt(0));
241 super.put("loadArchive", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
242 if (!ThreadMessage.suspendThread()) return null;
244 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
245 URL u = new URL(args.elementAt(0).toString());
247 JS.Callable callback = null;
248 if (args.length() == 2 && args.elementAt(1) != null && args.elementAt(1) instanceof JS.Callable)
249 callback = (JS.Callable)args.elementAt(1);
251 if (!u.getFile().endsWith(".xwar")) {
252 if (Log.on) Log.log(this, "Error: archive names must end with .xwar: " + u.getFile());
253 throw new JS.Exn("Error: archive names must end with .xwar: " + u.getFile());
256 if (u.getProtocol().equals("http")) {
257 HTTP http = new HTTP(u.toString());
258 if (Main.originAddr == null) {
260 Main.originHost = u.getHost();
261 Main.originAddr = InetAddress.getByName(Main.originHost);
262 } catch (UnknownHostException e) {
263 if (Log.on) Log.log(this, "couldn't resolve " + u.getHost() + "; proceeding without permissions");
264 Main.originAddr = InetAddress.getByName("0.0.0.0");
267 Main.originAddr = InetAddress.getByName("0.0.0.0");
269 HTTP.HTTPInputStream in = http.GET();
270 Resources.loadArchive(in, in.getContentLength(), callback);
272 } else if (u.getProtocol().equals("file")) {
273 if (Main.originAddr != null) {
274 if (Log.on) Log.log(this, "scripts downloaded from the network may not load xwars from the local filesystem");
275 throw new JS.Exn("scripts downloaded from the network may not load xwars from the local filesystem");
277 Resources.loadArchive(new FileInputStream(u.getFile()), (int)new File(u.getFile()).length(), callback);
280 if (Log.on) Log.log(this, "unknown protocol \"" + u.getProtocol() + "\"");
281 throw new JS.Exn("unknown protocol \"" + u.getProtocol() + "\"");
284 } catch (MalformedURLException me) {
285 if (Log.on) Log.log(this, "Malformed URL: " + args.elementAt(0));
286 if (Log.on) Log.log(this, me);
287 throw new JS.Exn(me.toString());
289 } catch (IOException ioe) {
290 if (Log.on) Log.log(this, "IOException while loading archive:");
291 if (Log.on) Log.log(this, ioe);
292 throw new JS.Exn(ioe.toString());
295 ThreadMessage.resumeThread();
301 super.put("prefetchImage", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
302 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
303 ImageDecoder.getImageDecoder(args.elementAt(0).toString(),
304 args.length() > 1 && args.elementAt(1) instanceof JS.Callable ? (JS.Callable)args.elementAt(1) : null);
309 private static void recurse(String indent, String name, Object o) {
310 if (!name.equals("")) name += " : ";
313 Log.logJS(indent + name + "<null>");
315 } else if (o instanceof JS.Array) {
316 Log.logJS(indent + name + "<array>");
317 JS.Array na = (JS.Array)o;
318 for(int i=0; i<na.length(); i++)
319 recurse(indent + " ", i + "", na.elementAt(i));
321 } else if (o instanceof JS) {
322 Log.logJS(indent + name + "<object>");
324 Object[] keys = s.keys();
325 for(int i=0; i<keys.length; i++)
326 recurse(indent + " ", keys[i].toString(),
327 (keys[i] instanceof Integer) ?
328 s.get(((Integer)keys[i])) : s.get(keys[i].toString()));
331 Log.logJS(indent + name + o);
337 public static void sleep(int i) {
338 java.lang.Thread thread = java.lang.Thread.currentThread();
339 if (!(thread instanceof ThreadMessage)) {
340 if (Log.on) Log.log(XWT.class, "cannot sleep() or yield() in the foreground thread");
342 ThreadMessage mythread = (ThreadMessage)thread;
343 mythread.done.release();
344 if (i > 0) try { java.lang.Thread.sleep(i); } catch (Exception e) { }
345 MessageQueue.add(mythread);
350 private static class XWTMath extends JS.Obj {
352 JS gs = new JS.GlobalScope();
353 put("isNaN",gs.get("isNaN"));
354 put("isFinite",gs.get("isFinite"));
355 put("NaN",gs.get("NaN"));
356 put("Infinity",gs.get("Infinity"));
359 public Object get(Object key) {
360 Object ret = super.get(key);
361 if(ret == null) ret = JS.Math.get(key);
365 private static class XWTString extends JS.Obj {
367 JS gs = new JS.GlobalScope();
368 put("parseInt",gs.get("parseInt"));
369 put("parseFloat",gs.get("parseFloat"));
370 put("decodeURI",gs.get("decodeURI"));
371 put("decodeURIComponent",gs.get("decodeURIComponent"));
372 put("encodeURI",gs.get("encodeURI"));
373 put("encodeURIComponent",gs.get("encodeURIComponent"));
374 put("escape",gs.get("escape"));
375 put("unescape",gs.get("unescape"));
376 put("fromCharCode",gs.get("stringFromCharCode"));