1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
4 import org.mozilla.javascript.*;
11 * A helper class for properties of Box which require special
14 * To avoid excessive use of String.equals(), the Box.get() and
15 * Box.put() methods employ a Hash keyed on property names that
16 * require special handling. The value stored in the Hash is an
17 * instance of an anonymous subclass of SpecialBoxProperty, which knows
18 * how to handle get()s and put()s for that property name. There
19 * should be one anonymous subclass of SpecialBoxProperty for each
20 * specially-handled property on Box.
22 class SpecialBoxProperty {
24 SpecialBoxProperty() { }
25 private static final int NUMINTS = Box.NUMINTS;
26 private static final int dmax = Box.dmax;
27 private static final int dmin = Box.dmin;
28 private static final int cmin = Box.cmin;
29 private static final int abs = Box.abs;
30 private static final int pos = Box.pos;
31 private static final int size = Box.size;
32 private static final int oldpos = Box.oldpos;
33 private static final int oldsize = Box.oldsize;
34 private static final int pad = Box.pad;
36 /** stores instances of SpecialBoxProperty; keyed on property name */
37 static Hash specialBoxProperties = new Hash(200, 3);
39 /** this method defines the behavior when the property is get()ed from b */
40 Object get(Box b) { return null; }
42 /** this method defines the behavior when the property is put() to b */
43 void put(Box b, Object value) { }
45 /** this method defines the behavior when the property is put() to b, allows a single SpecialBoxProperty to serve multiple properties */
46 void put(String name, Box b, Object value) { put(b, value); }
48 // 'ye olde IBM CGA colours', as defined in the XWT reference
49 static final int black = 0xFF000000;
50 static final int blue = 0xFF000088;
51 static final int green = 0xFF008800;
52 static final int cyan = 0xFF008888;
53 static final int red = 0xFF880000;
54 static final int magenta = 0xFF880088;
55 static final int brown = 0xFF888800;
56 static final int lightGray = 0xFFBDBEBD;
57 static final int darkGray = 0xFF242424;
58 static final int brightBlue = 0xFF0000FF;
59 static final int brightGreen = 0xFF00FF00;
60 static final int brightCyan = 0xFF00FFFF;
61 static final int brightRed = 0xFFFF0000;
62 static final int pink = 0xFFFF00FF;
63 static final int yellow = 0xFFFFFF00;
64 static final int white = 0xFFFFFFFF;
68 specialBoxProperties.put("color", new SpecialBoxProperty() {
69 public Object get(Box b) {
70 if ((b.color & 0xFF000000) == 0) return null;
71 String red = Integer.toHexString((b.color & 0x00FF0000) >> 16);
72 String green = Integer.toHexString((b.color & 0x0000FF00) >> 8);
73 String blue = Integer.toHexString(b.color & 0x000000FF);
74 if (red.length() < 2) red = "0" + red;
75 if (blue.length() < 2) blue = "0" + blue;
76 if (green.length() < 2) green = "0" + green;
77 return "#" + red + green + blue;
79 public void put(Box b, Object value) {
80 int newcolor = b.color;
81 String s = value == null ? null : value.toString();
82 if (value == null) newcolor = 0x00000000;
83 else if (s.length() > 0 && s.charAt(0) == '#')
84 newcolor = 0xFF000000 |
85 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
86 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
87 Integer.parseInt(s.substring(5, 7), 16);
88 else if (s.equals("black")) newcolor = black;
89 else if (s.equals("blue")) newcolor = blue;
90 else if (s.equals("green")) newcolor = green;
91 else if (s.equals("cyan")) newcolor = cyan;
92 else if (s.equals("red")) newcolor = red;
93 else if (s.equals("magenta")) newcolor = magenta;
94 else if (s.equals("brown")) newcolor = brown;
95 else if (s.equals("lightGray")) newcolor = lightGray;
96 else if (s.equals("darkGray")) newcolor = darkGray;
97 else if (s.equals("brightBlue")) newcolor = brightBlue;
98 else if (s.equals("brightGreen")) newcolor = brightGreen;
99 else if (s.equals("brightCyan")) newcolor = brightCyan;
100 else if (s.equals("brightRed")) newcolor = brightRed;
101 else if (s.equals("pink")) newcolor = pink;
102 else if (s.equals("yellow")) newcolor = yellow;
103 else if (s.equals("white")) newcolor = white;
104 else if (Log.on) Log.log(this, "invalid color " + s);
106 if (newcolor == b.color) return;
112 specialBoxProperties.put("textcolor", new SpecialBoxProperty() {
113 public Object get(Box b) {
114 if ((b.textcolor & 0xFF000000) == 0) return null;
115 String red = Integer.toHexString((b.textcolor & 0x00FF0000) >> 16);
116 String green = Integer.toHexString((b.textcolor & 0x0000FF00) >> 8);
117 String blue = Integer.toHexString(b.textcolor & 0x000000FF);
118 if (red.length() < 2) red = "0" + red;
119 if (blue.length() < 2) blue = "0" + blue;
120 if (green.length() < 2) green = "0" + green;
121 return "#" + red + green + blue;
123 public void put(Box b, Object value) {
124 int newtextcolor = b.color;
125 String s = value == null ? null : value.toString();
126 if (s.length() > 0 && s.charAt(0) == '#')
127 newtextcolor = 0xFF000000 |
128 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
129 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
130 Integer.parseInt(s.substring(5, 7), 16);
131 else if (s.equals("black")) newtextcolor = black;
132 else if (s.equals("blue")) newtextcolor = blue;
133 else if (s.equals("green")) newtextcolor = green;
134 else if (s.equals("cyan")) newtextcolor = cyan;
135 else if (s.equals("red")) newtextcolor = red;
136 else if (s.equals("magenta")) newtextcolor = magenta;
137 else if (s.equals("brown")) newtextcolor = brown;
138 else if (s.equals("lightGray")) newtextcolor = lightGray;
139 else if (s.equals("darkGray")) newtextcolor = darkGray;
140 else if (s.equals("brightBlue")) newtextcolor = brightBlue;
141 else if (s.equals("brightGreen")) newtextcolor = brightGreen;
142 else if (s.equals("brightCyan")) newtextcolor = brightCyan;
143 else if (s.equals("brightRed")) newtextcolor = brightRed;
144 else if (s.equals("pink")) newtextcolor = pink;
145 else if (s.equals("yellow")) newtextcolor = yellow;
146 else if (s.equals("white")) newtextcolor = white;
147 else if (Log.on) Log.log(this, "invalid textcolor " + s);
149 if (newtextcolor == b.textcolor) return;
150 b.textcolor = newtextcolor;
154 specialBoxProperties.put("text", new SpecialBoxProperty() {
155 public Object get(Box b) { return b.text; }
156 public void put(Box b, Object value) {
157 String t = value == null ? "null" : value.toString();
158 if (t.equals(b.text)) return;
160 for(int i=0; i<t.length(); i++)
161 if (Character.isISOControl(t.charAt(i))) {
162 if (Log.on) Log.log(this,
163 "ISO Control characters are not permitted in box text strings; offending character is ASCII " +
175 specialBoxProperties.put("thisbox", new SpecialBoxProperty() {
176 public Object get(Box b) { return b; }
177 public void put(Box b, Object value) {
178 if (value == null) b.remove();
179 else if (value.equals("window")) Platform.createSurface(b, false, true);
180 else if (value.equals("frame")) Platform.createSurface(b, true, true);
181 else if (Log.on) Log.log(this, "put invalid value to 'thisbox' property: " + value);
185 specialBoxProperties.put("orient", new SpecialBoxProperty() {
186 public Object get(Box b) {
187 if (b.redirect == null) return "horizontal";
188 else if (b.redirect != b) return get(b.redirect);
189 else if (b.o == 1) return "vertical";
190 else return "horizontal";
192 public void put(Box b, Object value) {
193 if (value == null) return;
194 if (b.redirect == null) return;
195 if (b.redirect != b) {
196 put(b.redirect, value);
199 if (value.equals("vertical")) {
200 if (b.o == 1) return;
203 } else if (value.equals("horizontal")) {
204 if (b.o == 0) return;
208 Log.log(this, "invalid value put to orient property: " + value);
209 b.mark_for_prerender();
210 b.sync_cmin_to_children();
213 specialBoxProperties.put("static", new SpecialBoxProperty() {
214 public Object get(Box b) {
215 String cfsn = JSObject.getCurrentFunctionSourceName();
216 for(int i=0; i<cfsn.length() - 1; i++)
217 if (cfsn.charAt(i) == '.' && (cfsn.charAt(i+1) == '_' || Character.isDigit(cfsn.charAt(i+1)))) {
218 cfsn = cfsn.substring(0, i);
221 return Static.getStatic(cfsn);
223 public void put(Box b, Object value) { }
226 specialBoxProperties.put("sizetoimage", new SpecialBoxProperty() {
227 public Object get(Box b) { return b.sizetoimage ? Boolean.TRUE : Boolean.FALSE; }
228 public void put(Box b, Object value) {
230 if (b.sizetoimage) return;
231 b.sizetoimage = true;
234 b.sizetoimage = false;
238 specialBoxProperties.put("shrink", new SpecialBoxProperty() {
239 public Object get(Box b) { return (b.vshrink && b.hshrink) ? Boolean.TRUE : Boolean.FALSE; }
240 public void put(Box b, Object value) {
241 boolean newshrink = stob(value);
242 if (b.hshrink == newshrink && b.vshrink == newshrink) return;
243 b.hshrink = b.vshrink = newshrink;
244 if (b.hshrink) b.set(b.dmax, 0, Box.max(b.cmin(0), b.textdim(0) + 2 * b.pad(0), b.dmin(0)));
245 if (b.vshrink) b.set(b.dmax, 1, Box.max(b.cmin(1), b.textdim(1) + 2 * b.pad(1), b.dmin(1)));
248 specialBoxProperties.put("hshrink", new SpecialBoxProperty() {
249 public Object get(Box b) { return new Boolean(b.hshrink); }
250 public void put(Box b, Object value) {
251 boolean newshrink = stob(value);
252 if (b.hshrink == newshrink) return;
253 b.hshrink = newshrink;
254 if (b.hshrink) b.set(b.dmax, 0, Box.max(b.cmin(0), b.textdim(0) + 2 * b.pad(0), b.dmin(0)));
258 specialBoxProperties.put("vshrink", new SpecialBoxProperty() {
259 public Object get(Box b) { return b.vshrink ? Boolean.TRUE : Boolean.FALSE; }
260 public void put(Box b, Object value) {
261 boolean newshrink = stob(value);
262 if (b.vshrink == newshrink) return;
263 b.vshrink = newshrink;
264 if (b.vshrink) b.set(b.dmax, 1, Box.max(b.cmin(1), b.textdim(1) + 2 * b.pad(1), b.dmin(1)));
268 specialBoxProperties.put("x", new SpecialBoxProperty() {
269 public Object get(Box b) {
270 if (b.surface == null) return new Integer(0);
271 if (b.invisible) return new Integer(0);
272 return new Integer(b.abs(0));
274 public void put(Box b, Object value) {
275 if (b.getParent() == null && b.surface != null) {
276 b.surface.setLocation(stoi(value), b.abs(1));
277 b.surface.centerSurfaceOnRender = false;
279 b.set(abs, 0, stosh(value));
283 specialBoxProperties.put("y", new SpecialBoxProperty() {
284 public Object get(Box b) {
285 if (b.surface == null) return new Integer(0);
286 if (b.invisible) return new Integer(0);
287 return new Integer(b.abs(1));
289 public void put(Box b, Object value) {
290 if (b.getParent() == null && b.surface != null) {
291 b.surface.setLocation(b.abs(0), stoi(value));
292 b.surface.centerSurfaceOnRender = false;
294 b.set(abs, 1, stosh(value));
298 specialBoxProperties.put("width", new SpecialBoxProperty() {
299 public Object get(Box b) { return new Integer(b.size(0)); }
300 public void put(Box b, Object value) {
301 if (b.sizetoimage) return;
302 if (b.getParent() == null && b.surface != null) {
303 b.set(size, 0, Box.max(Surface.scarPicture.getWidth(), stosh(value)));
304 b.mark_for_prerender();
306 b.set(dmax, 0, stosh(value));
307 b.set(dmin, 0, stosh(value));
311 specialBoxProperties.put("height", new SpecialBoxProperty() {
312 public Object get(Box b) { return new Integer(b.size(1)); }
313 public void put(Box b, Object value) {
314 if (b.sizetoimage) return;
315 if (b.getParent() == null && b.surface != null) {
316 b.set(size, 1, Box.max(Surface.scarPicture.getHeight(), stosh(value)));
317 b.mark_for_prerender();
319 b.set(dmax, 1, stosh(value));
320 b.set(dmin, 1, stosh(value));
324 specialBoxProperties.put("flex", new SpecialBoxProperty() {
325 public Object get(Box b) { return new Double(b.flex); }
326 public void put(Box b, Object value) {
327 if (value == null) return;
328 int newflex = stoi(value);
329 if (newflex == b.flex) return;
331 b.mark_for_prerender();
334 specialBoxProperties.put("tile", new SpecialBoxProperty() {
335 public Object get(Box b) { return b.tile ? Boolean.TRUE : Boolean.FALSE; }
336 public void put(Box b, Object value) {
337 boolean newtile = stob(value);
338 if (newtile == b.tile) return;
343 specialBoxProperties.put("align", new SpecialBoxProperty() {
344 public Object get(Box b) {
345 if (b.align == -1) return "topleft";
346 else if (b.align == 1) return "bottomright";
347 else return "center";
349 public void put(Box b, Object value) {
350 String s = value == null ? "" : value.toString();
351 byte newalign = b.align;
352 if (s.equals("topleft")) newalign = -1;
353 else if (s.equals("bottomright")) newalign = 1;
354 else if (s.equals("center")) newalign = 0;
355 else if (Log.on) Log.log(this, "invalid value put to align property: " + value);
356 if (newalign == b.align) return;
358 if (b.getParent() != null) b.getParent().mark_for_prerender();
361 specialBoxProperties.put("invisible", new SpecialBoxProperty() {
362 public Object get(Box b) { return b.invisible ? Boolean.TRUE : Boolean.FALSE; }
363 public void put(Box b, Object value) {
364 boolean newinvisible = stob(value);
365 if (newinvisible == b.invisible) return;
366 b.invisible = newinvisible;
367 if (b.getParent() == null) {
368 if (b.surface != null) b.surface.setInvisible(newinvisible);
371 b.getParent().mark_for_prerender();
372 b.getParent().sync_cmin_to_children();
373 b.getParent().dirty(b.pos(0), b.pos(1), b.size(0), b.size(1));
374 b.getParent().dirty(b.oldpos(0), b.oldpos(1), b.oldsize(0), b.oldsize(1));
378 specialBoxProperties.put("absolute", new SpecialBoxProperty() {
379 public Object get(Box b) { return b.absolute ? Boolean.TRUE : Boolean.FALSE; }
380 public void put(Box b, Object value) {
381 boolean newabsolute = stob(value);
382 if (newabsolute == b.absolute) return;
383 b.absolute = newabsolute;
384 if (b.getParent() != null) {
385 b.getParent().mark_for_prerender();
386 b.getParent().sync_cmin_to_children();
390 specialBoxProperties.put("image", new SpecialBoxProperty() {
391 public Object get(Box b) { return b.image == null ? null : Box.imageToNameMap.get(b.image); }
392 public void put(Box b, Object value) { b.setImage(value == null ? null : value.toString()); }
395 specialBoxProperties.put("border", new SpecialBoxProperty() {
396 public Object get(Box b) { return b.border == null ? null : Box.imageToNameMap.get(b.border); }
397 public void put(Box b, Object value) { b.setBorder(value == null ? null : value.toString()); }
400 specialBoxProperties.put("font", new SpecialBoxProperty() {
401 public Object get(Box b) { return b.font; }
402 public void put(Box b, Object value) {
403 if (value == null) value = Platform.getDefaultFont();
404 b.font = value.toString();
409 specialBoxProperties.put("globalx", new SpecialBoxProperty() {
410 public Object get(Box b) { return new Integer(b.getParent() == null || b.surface == null ? 0 : b.pos(0)); }
411 public void put(Box b, Object value) {
412 if (b.surface == null || b.getParent() == null) return;
413 b.put("x", null, new Integer(stoi(value) - stoi(get(b.getParent()))));
417 specialBoxProperties.put("globaly", new SpecialBoxProperty() {
418 public Object get(Box b) { return new Integer(b.getParent() == null || b.surface == null ? 0 : b.pos(1)); }
419 public void put(Box b, Object value) {
420 if (b.surface == null || b.getParent() == null) return;
421 b.put("y", null, new Integer(stoi(value) - stoi(get(b.getParent()))));
425 specialBoxProperties.put("cursor", new SpecialBoxProperty() {
426 public Object get(Box b) { return b.cursor; }
427 public void put(Box b, Object value) {
428 b.cursor = (String)value;
429 if (b.surface == null) return;
431 // see if we need to update the surface cursor
432 String tempcursor = b.surface.cursor;
433 b.Move(b.surface.mousex, b.surface.mousey, b.surface.mousex, b.surface.mousey);
434 if (b.surface.cursor != tempcursor) b.surface.syncCursor();
438 specialBoxProperties.put("mousex", new SpecialBoxProperty() {
439 public Object get(Box b) { return new Integer(b.surface == null ? 0 : b.surface.mousex - b.pos(0)); }
442 specialBoxProperties.put("mousey", new SpecialBoxProperty() {
443 public Object get(Box b) { return new Integer(b.surface == null ? 0 : b.surface.mousey - b.pos(1)); }
446 specialBoxProperties.put("xwt", new SpecialBoxProperty() {
447 public Object get(Box b) { return XWT.singleton; }
450 specialBoxProperties.put("mouseinside", new SpecialBoxProperty() {
451 public Object get(Box b) { return b.mouseinside ? Boolean.TRUE : Boolean.FALSE; }
454 specialBoxProperties.put("numchildren", new SpecialBoxProperty() {
455 public Object get(Box b) {
456 if (b.redirect == null) return new Integer(0);
457 if (b.redirect != b) return get(b.redirect);
458 return new Integer(b.numChildren());
461 SpecialBoxProperty mouseEventHandler = new SpecialBoxProperty() {
462 public void put(String name, Box b, Object value) {
463 if (b.surface == null) return;
464 if (b.getParent() == null) {
465 if (b.surface.boxContainingMouse.getParent() != null)
466 b.surface.boxContainingMouse.put(name, b.surface.boxContainingMouse, value);
469 for(Box c = b.prevSibling(); c != null; c = c.prevSibling())
470 if (c.inside(c.surface.mousex, c.surface.mousey)) {
471 c.put(name, c, value);
475 if (b.getParent() != null && b.getParent().getParent() != null)
476 b.getParent().put(name, b.getParent(), value);
480 specialBoxProperties.put("Press1", mouseEventHandler);
481 specialBoxProperties.put("Press2", mouseEventHandler);
482 specialBoxProperties.put("Press3", mouseEventHandler);
483 specialBoxProperties.put("Release1", mouseEventHandler);
484 specialBoxProperties.put("Release2", mouseEventHandler);
485 specialBoxProperties.put("Release3", mouseEventHandler);
486 specialBoxProperties.put("Click1", mouseEventHandler);
487 specialBoxProperties.put("Click2", mouseEventHandler);
488 specialBoxProperties.put("Click3", mouseEventHandler);
489 specialBoxProperties.put("DoubleClick1", mouseEventHandler);
490 specialBoxProperties.put("DoubleClick2", mouseEventHandler);
491 specialBoxProperties.put("DoubleClick3", mouseEventHandler);
493 specialBoxProperties.put("root", new SpecialBoxProperty() {
494 public Object get(Box b) {
495 if (b.surface == null) return null;
496 else if (b.getRoot() == null) return null;
497 else return b.getRoot().getRootProxy();
500 specialBoxProperties.put("Minimized", new SpecialBoxProperty() {
501 public Object get(Box b) {
502 if (b.getParent() == null && b.surface != null) return b.surface.minimized ? Boolean.TRUE : Boolean.FALSE;
505 public void put(Box b, Object value) {
506 if (b.surface == null) return;
507 boolean val = stob(value);
508 if (b.getParent() == null && b.surface.minimized != val) b.surface.setMinimized(val);
512 specialBoxProperties.put("Maximized", new SpecialBoxProperty() {
513 public Object get(Box b) {
514 if (b.getParent() == null && b.surface != null) return b.surface.maximized ? Boolean.TRUE : Boolean.FALSE;
517 public void put(Box b, Object value) {
518 if (b.surface == null) return;
519 boolean val = stob(value);
520 if (b.getParent() == null && b.surface.maximized != val) b.surface.setMaximized(val);
524 specialBoxProperties.put("toback", new SpecialBoxProperty() {
525 public void put(Box b, Object value) {
526 if (b.getParent() == null && stob(value) && b.surface != null) b.surface.toBack();
530 specialBoxProperties.put("tofront", new SpecialBoxProperty() {
531 public void put(Box b, Object value) {
532 if (b.getParent() == null && stob(value) && b.surface != null) b.surface.toFront();
536 specialBoxProperties.put("hscar", new SpecialBoxProperty() {
537 public void put(Box b, Object value) {
538 if (b.getParent() == null && b.surface != null) {
539 b.surface.hscar = stoi(value);
540 b.surface.dirty(0, 0, b.surface.width, b.surface.height);
546 specialBoxProperties.put("vscar", new SpecialBoxProperty() {
547 public void put(Box b, Object value) {
548 if (b.getParent() == null && b.surface != null) {
549 b.surface.vscar = stoi(value);
550 b.surface.dirty(0, 0, b.surface.width, b.surface.height);
556 specialBoxProperties.put("Close", new SpecialBoxProperty() {
557 public void put(Box b, Object value) {
558 if (b.getParent() == null && b.surface != null) b.surface.dispose();
562 // these are all do-nothings; just to prevent space from getting taken up in the params Hash.
563 specialBoxProperties.put("KeyPressed", new SpecialBoxProperty());
564 specialBoxProperties.put("KeyReleased", new SpecialBoxProperty());
565 specialBoxProperties.put("PosChange", new SpecialBoxProperty());
566 specialBoxProperties.put("SizeChange", new SpecialBoxProperty());
568 specialBoxProperties.put("hpad", new SpecialBoxProperty() {
569 public Object get(Box b) {
570 if (b.redirect == null) return new Integer(0);
571 if (b.redirect != b) return get(b.redirect);
572 return new Integer(b.pad(0));
574 public void put(Box b, Object value) {
575 if (b.redirect == null) return;
576 if (b.redirect != b) { put(b.redirect, value); return; }
577 short newval = stosh(value);
578 if (newval == b.pad(0)) return;
579 b.set(pad, 0, newval);
583 specialBoxProperties.put("vpad", new SpecialBoxProperty() {
584 public Object get(Box b) {
585 if (b.redirect == null) return new Integer(0);
586 if (b.redirect != b) return get(b.redirect);
587 return new Integer(b.pad(1));
589 public void put(Box b, Object value) {
590 if (b.redirect == null) return;
591 if (b.redirect != b) { put(b.redirect, value); return; }
592 short newval = stosh(value);
593 if (newval == b.pad(1)) return;
594 b.set(pad, 1, newval);
598 specialBoxProperties.put("indexof", new SpecialBoxProperty() {
599 public Object get(Box b) { return b.indexof(); }
602 specialBoxProperties.put("minwidth", new SpecialBoxProperty() {
603 public Object get(Box b) { return new Integer(b.dmin(0)); }
604 public void put(Box b, Object value) {
605 if (b.sizetoimage) return;
606 b.set(dmin, 0, stosh(value));
610 specialBoxProperties.put("maxwidth", new SpecialBoxProperty() {
611 public Object get(Box b) { return new Integer(b.dmax(0)); }
612 public void put(Box b, Object value) {
613 if (b.sizetoimage) return;
614 b.set(dmax, 0, stosh(value));
618 specialBoxProperties.put("minheight", new SpecialBoxProperty() {
619 public Object get(Box b) { return new Integer(b.dmin(1)); }
620 public void put(Box b, Object value) {
621 if (b.sizetoimage) return;
622 b.set(dmin, 1, stosh(value));
626 specialBoxProperties.put("maxheight", new SpecialBoxProperty() {
627 public Object get(Box b) { return new Integer(b.dmax(1)); }
628 public void put(Box b, Object value) {
629 if (b.sizetoimage) return;
630 b.set(dmax, 1, stosh(value));
636 /** helper that converts a String to a boolean according to JavaScript coercion rules */
637 public static boolean stob(Object o) {
638 if (o == null) return false;
639 return Boolean.TRUE.equals(o) || "true".equals(o);
642 /** helper that converts a String to an int according to JavaScript coercion rules */
643 public static int stoi(Object o) {
644 if (o == null) return 0;
645 if (o instanceof Integer) return ((Integer)o).intValue();
648 if (!(o instanceof String)) s = o.toString();
651 try { return Integer.parseInt(s.indexOf('.') == -1 ? s : s.substring(0, s.indexOf('.'))); }
652 catch (NumberFormatException e) { return 0; }
655 /** helper that converts a String to a short according to JavaScript coercion rules */
656 public static short stosh(Object o) {
657 if (o == null) return 0;
658 if (o instanceof Number) return ((Number)o).shortValue();
661 if (!(o instanceof String)) s = o.toString();
664 try { return Short.parseShort(s.indexOf('.') == -1 ? s : s.substring(0, s.indexOf('.'))); }
665 catch (NumberFormatException e) { return 0; }