-// Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
package org.xwt;
import java.io.*;
import java.util.*;
import org.xwt.js.*;
import org.xwt.util.*;
+import org.xwt.translators.*;
import org.bouncycastle.util.encoders.Base64;
/** Singleton class that provides all functionality in the xwt.* namespace */
-public final class XWT extends JS.Obj {
+public final class XWT extends JS.Cloneable {
- public static final XWT singleton = new XWT();
+ // FIXME remove this
+ private final JS rr;
+ public XWT(Stream rr) { this.rr = bless(rr); }
- /** each key is a string representing a filename which the user has already given XWT permission to write to */
- private static Hashtable safeFiles = new Hashtable();
-
- public Object get(Object name) {
- if (name.equals("alt")) return Surface.alt ? Boolean.TRUE : Boolean.FALSE;
- else if (name.equals("control")) return Surface.control ? Boolean.TRUE : Boolean.FALSE;
- else if (name.equals("shift")) return Surface.shift ? Boolean.TRUE : Boolean.FALSE;
- else if (name.equals("clipboard")) return Platform.getClipBoard();
- else if (name.equals("static")) return Static.getStatic("");
- else if (name.equals("button")) {
- if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
- else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
- else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(1);
- else return new Integer(0);
+ public JS resolveString(String str, boolean permitAbsolute) throws JSExn {
+ if (str.indexOf("://") != -1) {
+ if (permitAbsolute) return (Stream)url2res(str);
+ throw new JSExn("absolute URL " + str + " not permitted here");
+ }
+ // root-relative
+ //JS ret = (JS)getAndTriggerTraps("");
+ //FIXME
+ JS ret = rr;
+ while(str.indexOf('.') != -1) {
+ String path = str.substring(0, str.indexOf('.'));
+ str = str.substring(str.indexOf('.') + 1);
+ ret = (JS)ret.get(path);
}
- else if (name.equals("encodeURI")) throw new Error("not implemented");
- else if (name.equals("encodeURIComponent")) throw new Error("not implemented");
- else if (name.equals("decodeURI")) throw new Error("not implemented");
- else if (name.equals("decodeURIComponent")) throw new Error("not implemented");
- else return super.get(name);
+ ret = (JS)ret.get(str);
+ return ret;
}
- public void put(Object name, Object value) {
- if (name.equals("thread") && value != null && value instanceof JS.Callable) ThreadMessage.newthread((JS.Callable)value);
- else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
- else if (name.equals("proxyAuthorization")) {
- // FIXME: undocumented, possibly insecure
- Proxy.Authorization.authorization = value.toString();
- Proxy.Authorization.waitingForUser.release();
- } else super.put(name, value);
+ /** lets us put multi-level get/put/call keys all in the same method */
+ private class Sub extends JS {
+ String key;
+ Sub(String key) { this.key = key; }
+ public void put(Object key, Object val) throws JSExn { XWT.this.put(this.key + "." + key, val); }
+ public Object get(Object key) throws JSExn { return XWT.this.get(this.key + "." + key); }
+ public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
+ return XWT.this.callMethod(this.key, a0, a1, a2, rest, nargs);
+ }
+ public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
+ return XWT.this.callMethod(this.key + "." + method, a0, a1, a2, rest, nargs);
+ }
+ }
+ private Cache subCache = new Cache(20);
+ private Sub getSub(String s) {
+ Sub ret = (Sub)subCache.get(s);
+ if (ret == null) subCache.put(s, ret = new Sub(s));
+ return ret;
}
- private XWT() {
- put("maxdim", new Integer(Short.MAX_VALUE));
- put("origin", Main.origin);
- put("altKeyName", Platform.altKeyName());
- put("screenWidth", new Integer(Platform.getScreenWidth()));
- put("screenHeight", new Integer(Platform.getScreenHeight()));
- put("fileSeparator", File.separator);
- put("homeDir", System.getProperty("user.home"));
- put("tempDir", System.getProperty("java.io.tempdir"));
- put("math", org.xwt.js.Math.singleton);
-
- put("newBrowserWindow", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1 || args.elementAt(0) == null) return null;
- Platform.newBrowserWindow(args.elementAt(0).toString());
- return null;
- }});
-
- put("parseFloat", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1 || args.elementAt(0) == null) return null;
- return new Float(args.elementAt(0).toString());
- }});
-
- put("parseInt", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1 || args.elementAt(0) == null) return null;
- return new Float(args.elementAt(0).toString());
- }});
+ public Object get(Object name) throws JSExn {
+ if (name instanceof String && ((String)name).length() == 0) return rr;
+ //#switch(name)
+ case "math": return xwtMath;
+ case "string": return xwtString;
+ case "date": return METHOD;
+ case "box": return new Box();
+ case "clone": return METHOD;
+ case "bless": return METHOD;
+ case "regexp": return METHOD;
+ case "ui": return getSub("ui");
+ case "ui.font": return getSub("ui.font");
+ case "ui.font.sansserif": return Main.builtin.get("fonts/vera/Vera.ttf");
+ case "ui.font.monospace": return Main.builtin.get("fonts/vera/VeraMono.ttf");
+ case "ui.font.serif": return Main.builtin.get("fonts/vera/VeraSe.ttf");
+ case "ui.browser": return METHOD;
+ case "ui.mouse": return getSub("ui.mouse");
+ case "ui.mouse.button":
+ if (Surface.button1 && !Surface.button2 && !Surface.button3) return N(1);
+ else if (!Surface.button1 && Surface.button2 && !Surface.button3) return N(2);
+ else if (!Surface.button1 && !Surface.button2 && Surface.button3) return N(3);
+ else return ZERO;
+ case "ui.key": return getSub("ui.key");
+ case "ui.key.name": return getSub("ui.key.name");
+ case "ui.key.name.alt": return Platform.altKeyName();
+ case "ui.key.alt": return Surface.alt ? T : F;
+ case "ui.key.control": return Surface.control ? T : F;
+ case "ui.key.shift": return Surface.shift ? T : F;
+ case "ui.clipboard": return Platform.getClipBoard();
+ case "ui.maxdim": return N(Short.MAX_VALUE);
+ case "ui.screen": return getSub("ui.screen");
+ case "ui.screen.width": return N(Platform.getScreenWidth());
+ case "ui.screen.height": return N(Platform.getScreenHeight());
+ case "undocumented": return getSub("undocumented");
+ case "undocumented.initialOrigin": return Main.origin;
+ case "undocumented.initialTemplate": return Main.initialTemplate;
+ case "thread": return getSub("thread");
+ case "thread.yield": return METHOD;
+ case "thread.sleep": return METHOD;
+ case "stream": return getSub("stream");
+ case "stream.homedir": return url2res("file:" + System.getProperty("user.home"));
+ case "stream.tempdir": return url2res("file:" + System.getProperty("java.io.tempdir"));
+ case "stream.watch": return METHOD;
+ case "stream.unzip": return METHOD;
+ case "stream.uncab": return METHOD;
+ case "stream.cache": return METHOD;
+ case "stream.url": return METHOD;
+ case "stream.parse.html": return METHOD;
+ case "stream.parse.xml": return METHOD;
+ case "stream.parse.utf8": return METHOD;
+ case "net": return getSub("net");
+ case "net.rpc": return getSub("net.rpc");
+ case "net.rpc.xml": return METHOD;
+ case "net.rpc.soap": return METHOD;
+ case "log": return getSub("log");
+ case "log.debug": return METHOD;
+ case "log.info": return METHOD;
+ case "log.warn": return METHOD;
+ case "log.error": return METHOD;
+ case "crypto": return getSub("crypto");
+ case "crypto.rsa": return METHOD;
+ case "crypto.md5": return METHOD;
+ case "crypto.sha1": return METHOD;
+ case "crypto.rc4": return METHOD;
+ //#end
+ return super.get(name);
+ }
- put("yield", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- sleep(0);
- return null;
- }});
+ public void put(Object name, final Object value) throws JSExn {
+ //#switch(name)
+ case "thread": Scheduler.add((Scheduler.Task)value); return;
+ case "ui.clipboard": Platform.setClipBoard((String)value); return;
+ case "ui.frame": Platform.createSurface((Box)value, true, true); return;
+ case "ui.window": Platform.createSurface((Box)value, false, true); return;
+ case "undocumented.proxyAuthorization":
+ HTTP.Proxy.Authorization.authorization = value.toString();
+ HTTP.Proxy.Authorization.waitingForUser.release();
+ return;
+ //#end
+ throw new JSExn("attempted to put unknown property: xwt."+name);
+ }
- put("theme", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 2) return null;
- if (args.elementAt(0) == null || args.elementAt(1) == null) return null;
- for(int i=1; i<args.length(); i++) {
- if (args.elementAt(i) instanceof String) {
- String from = (String)args.elementAt(0);
- String to = (String)args.elementAt(i);
- if (Log.on) Log.log(this, "retheming from " + from + " to " + to);
- Resources.mapFrom.addElement(from);
- Resources.mapTo.addElement(to);
+ public Object callMethod(Object name, Object a, Object b, Object c, Object[] rest, int nargs) throws JSExn {
+ try {
+ //#switch(name)
+ case "date": return new JSDate(a, b, c, rest, nargs);
+ case "net.rpc.soap": return new SOAP((String)a, "", (String)b, (String)c);
+ // FIXME support object dumping
+ case "log.debug": JS.debug(a== null ? "**null**" : a.toString()); return null;
+ case "log.info": JS.info(a== null ? "**null**" : a.toString()); return null;
+ case "log.warn": JS.warn(a== null ? "**null**" : a.toString()); return null;
+ case "log.error": JS.error(a== null ? "**null**" : a.toString()); return null;
+ //#end
+
+ switch (nargs) {
+ case 0:
+ //#switch(name)
+ case "thread.yield": sleep(0); return null;
+ //#end
+ break;
+ case 1:
+ //#switch(name)
+ case "clone":
+ if (!(a instanceof JS.Cloneable)) throw new JSExn("cannot clone a " + a.getClass().getName());
+ return ((JS.Cloneable)a).jsclone();
+ case "bless": return bless((JS)a);
+ case "ui.browser": Platform.newBrowserWindow((String)a); return null;
+ case "stream.unzip": return new Stream.Zip((Stream)a);
+ case "stream.uncab": return new Stream.Cab((Stream)a);
+ case "stream.cache":
+ try { return new Stream.CachedStream((Stream)a, "resources", true); }
+ catch (Stream.NotCacheableException e) { throw new JSExn("this resource cannot be cached"); }
+ case "stream.url": {
+ String url = (String)a;
+ if (url.startsWith("http://")) return new Stream.HTTP(url);
+ else if (url.startsWith("https://")) return new Stream.HTTP(url);
+ else if (url.startsWith("data:")) return new Stream.ByteArray(Base64.decode(url.substring(5)), null);
+ else if (url.startsWith("utf8:")) return new Stream.ByteArray(url.substring(5).getBytes(), null);
+ throw new JSExn("invalid resource specifier " + url);
}
- }
- JS.Callable callback = args.elementAt(args.length() - 1) instanceof JS.Callable ?
- (JS.Callable)args.elementAt(args.length() - 1) : null;
- Template.retheme(callback);
- return null;
- }});
-
- put("println", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1) return null;
- if (Log.on) Log.log(this, Context.getCurrentSourceNameAndLine() + " " +
- (args.elementAt(0) == null ? "**null**" : args.elementAt(0).toString()));
- return null;
- }});
-
- put("date", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- Log.log(XWT.class, "date not implemented");
- //throw new Error("not implemented");
- return null;
- }});
-
- put("regexp", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- //throw new Error("not implemented");
- Log.log(XWT.class, "regexp not implemented");
- return null;
- }});
-
- put("listfonts", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- Object[] fonts = Platform.listFonts();
- JS.Array ret = new JS.Array();
- for(int i=0; i<fonts.length; i++) ret.addElement(fonts[i]);
- return ret;
- }});
-
- put("xmlrpc", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1 || args.elementAt(0) == null) return null;
- return new XMLRPC(args.elementAt(0).toString(), "");
- }});
-
- put("soap", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() == 1 && args.elementAt(0) != null) return new SOAP(args.elementAt(0).toString(), "", null, null);
- else if (args.length() == 2 && args.elementAt(0) != null && args.elementAt(1) != null)
- return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), null);
- else if (args.length() == 3 && args.elementAt(0) != null && args.elementAt(1) != null && args.elementAt(2) != null)
- return new SOAP(args.elementAt(0).toString(), "", args.elementAt(1).toString(), args.elementAt(2).toString());
- else return null;
- }});
-
- put("textwidth", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() < 1 || args.length() > 2) return null;
- if (args.elementAt(0) == null || (args.length() == 2 && args.elementAt(1) == null)) return null;
- String font = args.length() == 1 ? Platform.getDefaultFont() : args.elementAt(0).toString();
- String text = args.length() == 1 ? args.elementAt(0).toString() : args.elementAt(1).toString();
- XWF xwf = XWF.getXWF(font);
- if (xwf == null) return new Integer(Platform.stringWidth(font, text));
- else return new Integer(xwf.stringWidth(text));
- }});
-
- put("textheight", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() > 1) return null;
- if (args.length() == 1 && args.elementAt(0) == null) return null;
- String font = args.length() == 0 || args.elementAt(0) == null ? Platform.getDefaultFont() : args.elementAt(0).toString();
- XWF xwf = XWF.getXWF(font);
- if (xwf == null) return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
- else return new Integer(xwf.getMaxAscent() + xwf.getMaxDescent());
- }});
-
- put("newBox", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() > 0) Log.log(XWT.class, "DEPRECATED: xwt.newBox() with multiple arguments is deprecated; use xwt.newBox().apply()");
- JS.Callable callback = null;
- for(int i=1; i<args.length(); i++)
- if (args.elementAt(i) instanceof JS.Callable && callback == null)
- callback = (JS.Callable)args.elementAt(i);
- Box ret = new Box(args.length() == 0 || args.elementAt(0) == null ? "box" : args.elementAt(0).toString(),
- Template.defaultImportList, callback);
- for(int i=1; i<args.length(); i++)
- if (args.elementAt(i) instanceof Box)
- ret.put(ret.numChildren(), (Box)args.elementAt(i));
- for(int i=1; i<args.length(); i++)
- if (args.elementAt(i) instanceof JS && !(args.elementAt(i) instanceof Box) && !(args.elementAt(i) instanceof JS.Callable)) {
- JS s = (JS)args.elementAt(i);
- Object[] keys = s.keys();
- for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), s.get(keys[j].toString()));
- }
- return ret;
- }});
+ case "thread.sleep": sleep(JS.toInt(a)); return null;
+ case "regexp": return new JSRegexp(a, null);
+ case "net.rpc.xml": return new XMLRPC((String)a, "");
+ case "crypto.rsa": /* FEATURE */ return null;
+ case "crypto.md5": /* FEATURE */ return null;
+ case "crypto.sha1": /* FEATURE */ return null;
+ case "crypto.rc4": /* FEATURE */ return null;
+ case "stream.parse.html": throw new JSExn("not implemented yet"); //return null;
+ case "stream.parse.xml": new XMLHelper((JS)b).doParse((JS)a); return null;
+ // FIXME backgrounding
+ case "stream.parse.utf8": try { return new String(InputStreamToByteArray.convert(Stream.getInputStream(a))); }
+ catch (Exception e) { Log.warn(this, e); }
+ //#end
+ break;
+ case 2:
+ //#switch(name)
+ case "stream.watch": return new Stream.ProgressWatcher((Stream)a, (JS)b);
+ case "regexp": return new JSRegexp(a, b);
+ //#end
+ break;
+ }
+ } catch (RuntimeException e) {
+ // FIXME: maybe JSExn should take a second argument, Exception
+ Log.warn(this, "xwt."+name+"() threw: " + e);
+ throw new JSExn("invalid argument for xwt object method "+name+"()");
+ }
- put("sleep", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args != null && (args.length() != 1 || args.elementAt(0) == null)) return null;
- int i = args == null ? 0 : SpecialBoxProperty.stoi(args.elementAt(0).toString());
- sleep(i);
- return null;
- }});
+ throw new JSExn("invalid number of arguments for xwt object method "+name+"()");
+ }
- put("openFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 1) return null;
- String file = Platform.fileDialog(args.elementAt(0).toString(), false);
- return file == null ? null : new ByteStream(file);
- }});
+ public Stream url2res(String url) throws JSExn {
+ if (url.startsWith("http://")) return new Stream.HTTP(url);
+ else if (url.startsWith("https://")) return new Stream.HTTP(url);
+ else if (url.startsWith("data:")) return new Stream.ByteArray(Base64.decode(url.substring(5)), null);
+ else if (url.startsWith("utf8:")) return new Stream.ByteArray(url.substring(5).getBytes(), null);
+ else throw new JSExn("invalid resource specifier " + url);
+ // FIXME support file:// via dialog boxes
+ }
- put("saveFile", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 2) return null;
- if (!(args.elementAt(1) instanceof ByteStream)) return null;
- String file = args.elementAt(0).toString();
- if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
- file = Platform.fileDialog(file, true);
- if (file == null) return null;
- safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
+ public static void sleep(final int i) throws JSExn {
+ try {
+ final JS.UnpauseCallback callback = JS.pause();
+ final long currentTime = System.currentTimeMillis();
+ // FEATURE use a single sleeper thread
+ new Thread() { public void run() {
+ try { Thread.sleep(i); } catch (InterruptedException e) { }
+ Scheduler.add(callback);
+ } }.start();
+ } catch (JS.NotPauseableException npe) {
+ throw new JSExn("you cannot sleep or yield in the foreground thread");
+ }
+ }
+
+ public static final JSMath xwtMath = new JSMath() {
+ private JS gs = new JSScope.Global();
+ public Object get(Object key) throws JSExn {
+ //#switch(key)
+ case "isNaN": return gs.get("isNaN");
+ case "isFinite": return gs.get("isFinite");
+ case "NaN": return gs.get("NaN");
+ case "Infinity": return gs.get("Infinity");
+ //#end
+ return super.get(key);
}
- try {
- ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
+ };
+
+ public static final JS xwtString = new JS() {
+ private JS gs = new JSScope.Global();
+ public void put(Object key, Object val) { }
+ public Object get(Object key) throws JSExn {
+ //#switch(key)
+ case "parseInt": return gs.get("parseInt");
+ case "parseFloat": return gs.get("parseFloat");
+ case "decodeURI": return gs.get("decodeURI");
+ case "decodeURIComponent": return gs.get("decodeURIComponent");
+ case "encodeURI": return gs.get("encodeURI");
+ case "encodeURIComponent": return gs.get("encodeURIComponent");
+ case "escape": return gs.get("escape");
+ case "unescape": return gs.get("unescape");
+ case "fromCharCode": return gs.get("stringFromCharCode");
+ //#end
return null;
- } catch (IOException e) {
- if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
- if (Log.on) Log.log(ByteStream.class, e);
- throw new JS.Exn("error while writing a ByteStream to a file");
}
- }});
+ };
+
+ private class XMLHelper extends XML {
+ private class Wrapper extends XML.Exn { public JSExn wrapee; public Wrapper(JSExn jse) { super(""); wrapee = jse; } }
+ private JS characters, whitespace, endElement, startElement;
+ public XMLHelper(JS b) throws JSExn {
+ super(BUFFER_SIZE);
+ startElement = (JS)b.getAndTriggerTraps("startElement");
+ endElement = (JS)b.getAndTriggerTraps("endElement");
+ characters = (JS)b.getAndTriggerTraps("characters");
+ whitespace = (JS)b.getAndTriggerTraps("whitespace");
+ }
- put("saveFileAs", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args.length() != 2) return null;
- if (!(args.elementAt(1) instanceof ByteStream)) return null;
- String file = args.elementAt(0).toString();
- file = Platform.fileDialog(file, true);
- if (file == null) return null;
- safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
- try {
- ((ByteStream)args.elementAt(1)).writeTo(new FileOutputStream(file));
- return null;
+ public void startElement(XML.Element c) throws XML.Exn { try {
+ JS attrs = new JS();
+ // FIXME attribute URIs? add an additional hash?
+ for(int i=0; i<c.getAttrLen(); i++) attrs.put(c.getAttrKey(i), c.getAttrVal(i));
+ startElement.call(c.getLocalName(), attrs, c.getUri(), null, 3);
+ } catch (JSExn jse) { throw new Wrapper(jse); } }
+
+ public void endElement(XML.Element c) throws XML.Exn { try {
+ endElement.call(c.getLocalName(), c.getUri(), null, null, 2);
+ } catch (JSExn jse) { throw new Wrapper(jse); } }
+
+ public void characters(char[] ch, int start, int length) throws XML.Exn { try {
+ characters.call(new String(ch, start, length), null, null, null, 1);
+ } catch (JSExn jse) { throw new Wrapper(jse); } }
+
+ public void whitespace(char[] ch, int start, int length) throws XML.Exn { try {
+ whitespace.call(new String(ch, start, length), null, null, null, 1);
+ } catch (JSExn jse) { throw new Wrapper(jse); } }
+
+ public void doParse(JS s) throws JSExn {
+ try {
+ parse(new BufferedReader(new InputStreamReader(Stream.getInputStream(s))));
+ } catch (Wrapper e) {
+ throw e.wrapee;
+ } catch (XML.Exn e) {
+ throw new JSExn("error parsing XML: " + e.toString());
} catch (IOException e) {
- if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
- if (Log.on) Log.log(ByteStream.class, e);
- throw new JS.Exn("error while writing a ByteStream to a file");
+ if (Log.on) Log.info(this, "IO Exception while reading from file");
+ if (Log.on) Log.info(this, e);
+ throw new JSExn("error reading from Resource");
}
- }});
-
- put("utfEncode", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args == null || args.length() != 1) return null;
- return new ByteStream(args.elementAt(0).toString().getBytes());
- }});
+ }
+ }
- put("parseHTML", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args == null || args.length() != 1 || args.elementAt(0) == null) return null;
+ // FEATURE: move this into builtin.xwar
+ public Blessing bless(JS b) { return new XWT.Blessing((JS.Cloneable)b, this, null, null); }
+ public static class Blessing extends JS.Clone {
+ private XWT xwt;
+ private Template t = null;
+ private Object parentkey = null;
+ private Blessing parent = null;
+ public Blessing(JS.Cloneable clonee, XWT xwt, Blessing parent, Object parentkey) {
+ super(clonee); this.xwt = xwt; this.parentkey = parentkey; this.parent = parent; }
+ public Object get(Object key) throws JSExn {
+ return key.equals("") ? ((Object)getStatic()) : (new Blessing((JS.Cloneable)clonee.get(key), xwt, this, key));
+ }
+ public static Blessing getBlessing(Object o) {
+ if (!(o instanceof JS)) return null;
+ JS js = (JS)o;
+ while (js instanceof JS.Clone && !(js instanceof Blessing)) js = ((JS.Clone)js).getClonee();
+ if (!(js instanceof Blessing)) return null;
+ return (Blessing)js;
+ }
+ public InputStream getImage() throws JSExn {
+ try {
+ InputStream in = Stream.getInputStream(this);
+ if (in != null) return in;
+ } catch (IOException e) { /* DELIBERATE */ }
+ String[] exts = new String[] { ".png", ".jpeg", ".gif" };
+ for (int i=0; i < exts.length; i++)
try {
- if (args.elementAt(0) instanceof ByteStream) {
- return HTML.parseReader(new InputStreamReader(((ByteStream)args.elementAt(0)).getInputStream()));
- } else {
- return HTML.parseReader(new StringReader(args.elementAt(0).toString()));
- }
- } catch (IOException e) {
- if (Log.on) Log.log(HTML.class, "IO Exception while parsing HTML");
- if (Log.on) Log.log(HTML.class, e);
- throw new JS.Exn("error while parsing HTML");
- }
- }
- });
-
- put("recursivePrintObject", new JS.Callable() { public Object call(JS.Array args) {
- if (args.length() != 1) return null;
- recurse("", "", args.elementAt(0));
- return null;
- }});
-
- put("loadArchive", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (!ThreadMessage.suspendThread()) return null;
- try {
- if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
- URL u = new URL(args.elementAt(0).toString());
-
- JS.Callable callback = null;
- if (args.length() == 2 && args.elementAt(1) != null && args.elementAt(1) instanceof JS.Callable)
- callback = (JS.Callable)args.elementAt(1);
-
- if (!u.getFile().endsWith(".xwar")) {
- if (Log.on) Log.log(this, "Error: archive names must end with .xwar: " + u.getFile());
- throw new JS.Exn("Error: archive names must end with .xwar: " + u.getFile());
- }
-
- if (u.getProtocol().equals("http")) {
- HTTP http = new HTTP(u.toString());
- if (Main.originAddr == null) {
- try {
- Main.originAddr = InetAddress.getByName(u.getHost());
- } catch (UnknownHostException e) {
- if (Log.on) Log.log(this, "couldn't resolve " + u.getHost() + "; proceeding without permissions");
- Main.originAddr = InetAddress.getByName("0.0.0.0");
- }
- } else {
- Main.originAddr = InetAddress.getByName("0.0.0.0");
- }
- HTTP.HTTPInputStream in = http.GET();
- Resources.loadArchive(in, in.getContentLength(), callback);
-
- } else if (u.getProtocol().equals("file")) {
- if (Main.originAddr != null) {
- if (Log.on) Log.log(this, "scripts downloaded from the network may not load xwars from the local filesystem");
- throw new JS.Exn("scripts downloaded from the network may not load xwars from the local filesystem");
- }
- Resources.loadArchive(new FileInputStream(u.getFile()), (int)new File(u.getFile()).length(), callback);
-
- } else {
- if (Log.on) Log.log(this, "unknown protocol \"" + u.getProtocol() + "\"");
- throw new JS.Exn("unknown protocol \"" + u.getProtocol() + "\"");
+ InputStream in = Stream.getInputStream(parent.get(parentkey + exts[i]));
+ if (in != null) return in;
+ } catch (IOException f) { /* DELIBERATE */ }
+ return null;
+ }
+ public JSScope getStatic() {
+ try {
+ // FIXME background?
+ if (t == null) t = Template.buildTemplate(Stream.getInputStream(parent.get(parentkey + ".xwt")), xwt);
+ return t.staticScope;
+ } catch (Exception e) {
+ Log.error(this, e);
+ return null;
}
-
- } catch (MalformedURLException me) {
- if (Log.on) Log.log(this, "Malformed URL: " + args.elementAt(0));
- if (Log.on) Log.log(this, me);
- throw new JS.Exn(me.toString());
-
- } catch (IOException ioe) {
- if (Log.on) Log.log(this, "IOException while loading archive:");
- if (Log.on) Log.log(this, ioe);
- throw new JS.Exn(ioe.toString());
-
- } finally {
- ThreadMessage.resumeThread();
-
}
- return null;
- }});
-
- put("prefetchImage", new JS.Callable() { public Object call(JS.Array args) throws JS.Exn {
- if (args == null || args.length() < 1 || args.elementAt(0) == null) return null;
- Box.getImage(args.elementAt(0).toString(),
- args.length() > 1 && args.elementAt(1) instanceof JS.Callable ? (JS.Callable)args.elementAt(1) : null);
- return null;
- }});
- }
-
- private static void recurse(String indent, String name, Object o) {
- if (!name.equals("")) name += " : ";
-
- if (o == null) {
- Log.log(Context.getCurrentSourceNameAndLine() , indent + name + "<null>");
-
- } else if (o instanceof JS.Array) {
- Log.log(Context.getCurrentSourceNameAndLine() , indent + name + "<array>");
- JS.Array na = (JS.Array)o;
- for(int i=0; i<na.length(); i++)
- recurse(indent + " ", i + "", na.elementAt(i));
-
- } else if (o instanceof JS) {
- Log.log(Context.getCurrentSourceNameAndLine() , indent + name + "<object>");
- JS s = (JS)o;
- Object[] keys = s.keys();
- for(int i=0; i<keys.length; i++)
- recurse(indent + " ", keys[i].toString(),
- (keys[i] instanceof Integer) ?
- s.get(((Integer)keys[i])) : s.get(keys[i].toString()));
-
- } else {
- Log.log(Context.getCurrentSourceNameAndLine(), indent + name + o);
-
+ public Object call(Object a, Object b, Object c, Object[] rest, int nargs) throws JSExn {
+ // GROSS hack
+ if (nargs == 9999) return t;
+ if (nargs != 1) throw new JSExn("FIXME can only call with one arg");
+ getStatic();
+ t.apply((Box)a);
+ return a;
}
}
-
- public static void sleep(int i) {
- Thread thread = Thread.currentThread();
- if (!(thread instanceof ThreadMessage)) {
- if (Log.on) Log.log(XWT.class, "cannot sleep() or yield() in the foreground thread");
- } else {
- ThreadMessage mythread = (ThreadMessage)thread;
- mythread.done.release();
- if (i > 0) try { Thread.sleep(i); } catch (Exception e) { }
- MessageQueue.add(mythread);
- mythread.go.block();
- }
- }
}
-
-
-
-
-
-
-
-
projects / org.ibex.core.git / blobdiff