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 Res resourceRoot = null;
17 public static final XWT singleton = new XWT();
18 private final JS xwtMath = new XWTMath();
19 private final JS xwtString = new XWTString();
21 /** each key is a string representing a filename which the user has already given XWT permission to write to */
22 private static Hashtable safeFiles = new Hashtable();
24 public Object get(Object name) {
25 if (name.equals("alt")) return Surface.alt ? Boolean.TRUE : Boolean.FALSE;
26 else if (name.equals("control")) return Surface.control ? Boolean.TRUE : Boolean.FALSE;
27 else if (name.equals("shift")) return Surface.shift ? Boolean.TRUE : Boolean.FALSE;
28 else if (name.equals("clipboard")) return Platform.getClipBoard();
29 else if (name.equals("static")) return Static.getStatic("");
30 else if (name.equals("button")) {
31 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
32 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
33 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(1);
34 else return new Integer(0);
36 else return super.get(name);
39 public void put(Object name, Object value) {
40 if (name.equals("thread") && value != null && value instanceof JS.Callable) ThreadMessage.newthread((JS.Callable)value);
41 else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
42 else if (name.equals("proxyAuthorization")) {
43 // FIXME: undocumented, possibly insecure
44 HTTP.Proxy.Authorization.authorization = value.toString();
45 HTTP.Proxy.Authorization.waitingForUser.release();
46 } else super.put(name, value);
50 super.put("maxdim", new Integer(Short.MAX_VALUE));
51 super.put("origin", Main.origin);
52 super.put("altKeyName", Platform.altKeyName());
53 super.put("screenWidth", new Integer(Platform.getScreenWidth()));
54 super.put("screenHeight", new Integer(Platform.getScreenHeight()));
55 super.put("fileSeparator", File.separator);
56 super.put("homeDir", System.getProperty("user.home"));
57 super.put("tempDir", System.getProperty("java.io.tempdir"));
58 super.put("math", xwtMath);
59 super.put("string", xwtString);
61 super.put("newBrowserWindow", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
62 if (args.length() != 1 || args.elementAt(0) == null) return null;
63 Platform.newBrowserWindow(args.elementAt(0).toString());
67 super.put("parseInt",xwtString.get("parseInt"));
68 super.put("parseFloat",xwtString.get("parseFloat"));
70 super.put("yield", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
75 super.put("load", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
76 return Res.stringToRes(args.elementAt(0).toString());
79 super.put("println", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
80 if (args.length() != 1) return null;
81 if (Log.on) Log.logJS(this, (args.elementAt(0) == null ? "**null**" : args.elementAt(0).toString()));
85 super.put("date", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
86 Log.log(XWT.class, "date not implemented");
87 //throw new Error("not implemented");
91 super.put("regexp", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
92 return new Regexp(args);
95 super.put("listfonts", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
96 Object[] fonts = Platform.listFonts();
97 JS.Array ret = new JS.Array();
98 for(int i=0; i<fonts.length; i++) ret.addElement(fonts[i]);
102 super.put("xmlrpc", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
103 if (args.length() != 1 || args.elementAt(0) == null) return null;
104 return new XMLRPC(args.elementAt(0).toString(), "");
107 super.put("soap", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
108 if (args.length() == 1 && args.elementAt(0) != null) return new SOAP(args.elementAt(0).toString(), "", null, null);
109 else if (args.length() == 2 && args.elementAt(0) != null && args.elementAt(1) != null)
110 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), null);
111 else if (args.length() == 3 && args.elementAt(0) != null && args.elementAt(1) != null && args.elementAt(2) != null)
112 return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), args.elementAt(2).toString());
116 super.put("textwidth", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
117 if (args.length() < 1 || args.length() > 2) return null;
118 if (args.elementAt(0) == null || (args.length() == 2 && args.elementAt(1) == null)) return null;
119 String font = args.length() == 1 ? Platform.getDefaultFont() : args.elementAt(0).toString();
120 String text = args.length() == 1 ? args.elementAt(0).toString() : args.elementAt(1).toString();
121 return new Integer(Platform.stringWidth(font, text));
124 super.put("textheight", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
125 if (args.length() > 1) return null;
126 if (args.length() == 1 && args.elementAt(0) == null) return null;
127 String font = args.length() == 0 || args.elementAt(0) == null ? Platform.getDefaultFont() : args.elementAt(0).toString();
128 return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
131 super.put("newBox", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
132 if (args.length() > 0) Log.log(XWT.class, "DEPRECATED: xwt.newBox() with multiple arguments is deprecated; use xwt.newBox().apply()");
133 JS.Callable callback = null;
134 for(int i=1; i<args.length(); i++)
135 if (args.elementAt(i) instanceof JS.Callable && callback == null)
136 callback = (JS.Callable)args.elementAt(i);
138 if (!(args.length() == 0 || args.elementAt(0) == null))
139 Template.getTemplate(args.elementAt(0).toString(),
140 Template.defaultImportList).apply(ret, null, null, callback, 0, 1, resourceRoot);
141 for(int i=1; i<args.length(); i++)
142 if (args.elementAt(i) instanceof Box)
143 ret.put(ret.numChildren(), (Box)args.elementAt(i));
144 for(int i=1; i<args.length(); i++)
145 if (args.elementAt(i) instanceof JS && !(args.elementAt(i) instanceof Box) && !(args.elementAt(i) instanceof JS.Callable)) {
146 JS s = (JS)args.elementAt(i);
147 Object[] keys = s.keys();
148 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), s.get(keys[j].toString()));
153 super.put("sleep", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
154 if (args != null && (args.length() != 1 || args.elementAt(0) == null)) return null;
155 int i = args == null ? 0 : Box.stoi(args.elementAt(0).toString());
161 super.put("openFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
162 if (args.length() != 1) return null;
163 String file = Platform.fileDialog(args.elementAt(0).toString(), false);
164 return file == null ? null : new ByteStream(file);
167 super.put("saveFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
168 if (args.length() != 2) return null;
169 if (!(args.elementAt(1) instanceof ByteStream)) return null;
170 String file = args.elementAt(0).toString();
171 if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
172 file = Platform.fileDialog(file, true);
173 if (file == null) return null;
174 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
177 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
179 } catch (IOException e) {
180 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
181 if (Log.on) Log.log(ByteStream.class, e);
182 throw new JS.Exn("error while writing a ByteStream to a file");
186 super.put("saveFileAs", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
187 if (args.length() != 2) return null;
188 if (!(args.elementAt(1) instanceof ByteStream)) return null;
189 String file = args.elementAt(0).toString();
190 file = Platform.fileDialog(file, true);
191 if (file == null) return null;
192 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
194 ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
196 } catch (IOException e) {
197 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
198 if (Log.on) Log.log(ByteStream.class, e);
199 throw new JS.Exn("error while writing a ByteStream to a file");
203 super.put("utfEncode", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
204 if (args == null || args.length() != 1) return null;
205 return new ByteStream(args.elementAt(0).toString().getBytes());
208 super.put("parseHTML", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
209 if (args == null || args.length() != 1 || args.elementAt(0) == null) return null;
211 if (args.elementAt(0) instanceof ByteStream) {
212 return HTML.parseReader(new InputStreamReader(((ByteStream)args.elementAt(0)).getInputStream()));
214 return HTML.parseReader(new StringReader(args.elementAt(0).toString()));
216 } catch (IOException e) {
217 if (Log.on) Log.log(HTML.class, "IO Exception while parsing HTML");
218 if (Log.on) Log.log(HTML.class, e);
219 throw new JS.Exn("error while parsing HTML");
224 super.put("recursivePrintObject", new JS.Callable() { public Object call(JS.Array args) {
225 if (args.length() != 1) return null;
226 recurse("", "", args.elementAt(0));
230 super.put("loadArchive", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
231 if (!ThreadMessage.suspendThread()) return null;
233 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
234 URL u = new URL(args.elementAt(0).toString());
236 JS.Callable callback = null;
237 if (args.length() == 2 && args.elementAt(1) != null && args.elementAt(1) instanceof JS.Callable)
238 callback = (JS.Callable)args.elementAt(1);
240 if (!u.getFile().endsWith(".xwar")) {
241 if (Log.on) Log.log(this, "Error: archive names must end with .xwar: " + u.getFile());
242 throw new JS.Exn("Error: archive names must end with .xwar: " + u.getFile());
245 if (u.getProtocol().equals("http")) {
246 HTTP http = new HTTP(u.toString());
247 if (Main.originAddr == null) {
249 Main.originHost = u.getHost();
250 Main.originAddr = InetAddress.getByName(Main.originHost);
251 } catch (UnknownHostException e) {
252 if (Log.on) Log.log(this, "couldn't resolve " + u.getHost() + "; proceeding without permissions");
253 Main.originAddr = InetAddress.getByName("0.0.0.0");
256 Main.originAddr = InetAddress.getByName("0.0.0.0");
258 HTTP.HTTPInputStream in = http.GET();
259 Resources.loadArchive(in, in.getContentLength(), callback);
261 } else if (u.getProtocol().equals("file")) {
262 if (Main.originAddr != null) {
263 if (Log.on) Log.log(this, "scripts downloaded from the network may not load xwars from the local filesystem");
264 throw new JS.Exn("scripts downloaded from the network may not load xwars from the local filesystem");
266 Resources.loadArchive(new FileInputStream(u.getFile()), (int)new File(u.getFile()).length(), callback);
269 if (Log.on) Log.log(this, "unknown protocol \"" + u.getProtocol() + "\"");
270 throw new JS.Exn("unknown protocol \"" + u.getProtocol() + "\"");
273 } catch (MalformedURLException me) {
274 if (Log.on) Log.log(this, "Malformed URL: " + args.elementAt(0));
275 if (Log.on) Log.log(this, me);
276 throw new JS.Exn(me.toString());
278 } catch (IOException ioe) {
279 if (Log.on) Log.log(this, "IOException while loading archive:");
280 if (Log.on) Log.log(this, ioe);
281 throw new JS.Exn(ioe.toString());
284 ThreadMessage.resumeThread();
290 super.put("prefetchImage", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
291 if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
292 ImageDecoder.getImageDecoder(args.elementAt(0).toString(),
293 args.length() > 1 && args.elementAt(1) instanceof JS.Callable ? (JS.Callable)args.elementAt(1) : null);
298 private static void recurse(String indent, String name, Object o) {
299 if (!name.equals("")) name += " : ";
302 Log.logJS(indent + name + "<null>");
304 } else if (o instanceof JS.Array) {
305 Log.logJS(indent + name + "<array>");
306 JS.Array na = (JS.Array)o;
307 for(int i=0; i<na.length(); i++)
308 recurse(indent + " ", i + "", na.elementAt(i));
310 } else if (o instanceof JS) {
311 Log.logJS(indent + name + "<object>");
313 Object[] keys = s.keys();
314 for(int i=0; i<keys.length; i++)
315 recurse(indent + " ", keys[i].toString(),
316 (keys[i] instanceof Integer) ?
317 s.get(((Integer)keys[i])) : s.get(keys[i].toString()));
320 Log.logJS(indent + name + o);
326 public static void sleep(int i) {
327 java.lang.Thread thread = java.lang.Thread.currentThread();
328 if (!(thread instanceof ThreadMessage)) {
329 if (Log.on) Log.log(XWT.class, "cannot sleep() or yield() in the foreground thread");
331 ThreadMessage mythread = (ThreadMessage)thread;
332 mythread.done.release();
333 if (i > 0) try { java.lang.Thread.sleep(i); } catch (Exception e) { }
334 MessageQueue.add(mythread);
339 private static class XWTMath extends JS.Obj {
341 JS gs = new JS.GlobalScope();
342 put("isNaN",gs.get("isNaN"));
343 put("isFinite",gs.get("isFinite"));
344 put("NaN",gs.get("NaN"));
345 put("Infinity",gs.get("Infinity"));
348 public Object get(Object key) {
349 Object ret = super.get(key);
350 if(ret == null) ret = JS.Math.get(key);
354 private static class XWTString extends JS.Obj {
356 JS gs = new JS.GlobalScope();
357 put("parseInt",gs.get("parseInt"));
358 put("parseFloat",gs.get("parseFloat"));
359 put("decodeURI",gs.get("decodeURI"));
360 put("decodeURIComponent",gs.get("decodeURIComponent"));
361 put("encodeURI",gs.get("encodeURI"));
362 put("encodeURIComponent",gs.get("encodeURIComponent"));
363 put("escape",gs.get("escape"));
364 put("unescape",gs.get("unescape"));
365 put("fromCharCode",gs.get("stringFromCharCode"));