summaryrefslogtreecommitdiff
path: root/tests/test_tools/selenium/core/scripts/selenium-browserbot.js
blob: 22df0fdb4a02d8cd06924a560c0b4f91be632089 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
/*
* Copyright 2004 ThoughtWorks, Inc
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*
*/

/*
* This script provides the Javascript API to drive the test application contained within
* a Browser Window.
* TODO:
*    Add support for more events (keyboard and mouse)
*    Allow to switch "user-entry" mode from mouse-based to keyboard-based, firing different
*          events in different modes.
*/

// The window to which the commands will be sent.  For example, to click on a
// popup window, first select that window, and then do a normal click command.

var BrowserBot = function(topLevelApplicationWindow) {
    this.topWindow = topLevelApplicationWindow;

    // the buttonWindow is the Selenium window
    // it contains the Run/Pause buttons... this should *not* be the AUT window
    // todo: Here the buttonWindow is not Selenium window. It will be set to Selenium window in pollForLoad.
    // Change this!!!
    this.buttonWindow = this.topWindow;
    // not sure what this is used for
    this.currentPage = null;
    this.currentWindow = this.topWindow;
    this.currentWindowName = null;

    this.modalDialogTest = null;
    this.recordedAlerts = new Array();
    this.recordedConfirmations = new Array();
    this.recordedPrompts = new Array();
    this.openedWindows = {};
    this.nextConfirmResult = true;
    this.nextPromptResult = '';
    this.newPageLoaded = false;
    this.pageLoadError = null;

    this.uniqueId = new Date().getTime();
    this.pollingForLoad = new Object();
    this.windowPollers = new Array();

    var self = this;
    this.recordPageLoad = function() {
        LOG.debug("Page load detected");
        try {
            LOG.debug("Page load location=" + self.getCurrentWindow(true).location);
        } catch (e) {
            self.pageLoadError = e;
            return;
        }
        self.currentPage = null;
        self.newPageLoaded = true;
    };

    this.isNewPageLoaded = function() {
        if (this.pageLoadError) {
            var e = this.pageLoadError;
            this.pageLoadError = null;
            throw e;
        }
        return self.newPageLoaded;
    };
};

BrowserBot.createForWindow = function(window) {
    var browserbot;
    LOG.debug('createForWindow');
    LOG.debug("browserName: " + browserVersion.name);
    LOG.debug("userAgent: " + navigator.userAgent);
    if (browserVersion.isIE) {
        browserbot = new IEBrowserBot(window);
    }
    else if (browserVersion.isKonqueror) {
        browserbot = new KonquerorBrowserBot(window);
    }
    else if (browserVersion.isOpera) {
        browserbot = new OperaBrowserBot(window);
    }
    else if (browserVersion.isSafari) {
        browserbot = new SafariBrowserBot(window);
    }
    else {
        // Use mozilla by default
        browserbot = new MozillaBrowserBot(window);
    }
    browserbot.getCurrentWindow();
    // todo: why?
    return browserbot;
};

// todo: rename?  This doesn't actually "do" anything.
BrowserBot.prototype.doModalDialogTest = function(test) {
    this.modalDialogTest = test;
};

BrowserBot.prototype.cancelNextConfirmation = function() {
    this.nextConfirmResult = false;
};

BrowserBot.prototype.setNextPromptResult = function(result) {
    this.nextPromptResult = result;
};

BrowserBot.prototype.hasAlerts = function() {
    return (this.recordedAlerts.length > 0);
};

BrowserBot.prototype.relayBotToRC = function() {
};
// override in injection.html

BrowserBot.prototype.resetPopups = function() {
    this.recordedAlerts = [];
    this.recordedConfirmations = [];
    this.recordedPrompts = [];
}

BrowserBot.prototype.getNextAlert = function() {
    var t = this.recordedAlerts.shift();
    this.relayBotToRC("browserbot.recordedAlerts");
    return t;
};

BrowserBot.prototype.hasConfirmations = function() {
    return (this.recordedConfirmations.length > 0);
};

BrowserBot.prototype.getNextConfirmation = function() {
    var t = this.recordedConfirmations.shift();
    this.relayBotToRC("browserbot.recordedConfirmations");
    return t;
};

BrowserBot.prototype.hasPrompts = function() {
    return (this.recordedPrompts.length > 0);
};

BrowserBot.prototype.getNextPrompt = function() {
    var t = this.recordedPrompts.shift();
    this.relayBotToRC("browserbot.recordedPrompts");
    return t;
};

BrowserBot.prototype._windowClosed = function(win) {
    var c = win.closed;
    if (c == null) return true;
    return c;
};

BrowserBot.prototype._modifyWindow = function(win) {
    if (this._windowClosed(win)) {
        LOG.error("modifyWindow: Window was closed!");
        return null;
    }
    LOG.debug('modifyWindow ' + this.uniqueId + ":" + win[this.uniqueId]);
    if (!win[this.uniqueId]) {
        win[this.uniqueId] = true;
        this.modifyWindowToRecordPopUpDialogs(win, this);
        this.currentPage = PageBot.createForWindow(this);
        this.newPageLoaded = false;
    }
    this.modifySeparateTestWindowToDetectPageLoads(win);
    return win;
};

BrowserBot.prototype.selectWindow = function(target) {
    // we've moved to a new page - clear the current one
    this.currentPage = null;

    if (target && target != "null") {
        this._selectWindowByName(target);
    } else {
        this._selectTopWindow();
    }
};

BrowserBot.prototype._selectTopWindow = function() {
    this.currentWindowName = null;
    this.currentWindow = this.topWindow;
}

BrowserBot.prototype._selectWindowByName = function(target) {
    this.currentWindow = this.getWindowByName(target, false);
    this.currentWindowName = target;
}

BrowserBot.prototype.selectFrame = function(target) {
    if (target == "relative=up") {
        this.currentWindow = this.getCurrentWindow().parent;
    } else if (target == "relative=top") {
        this.currentWindow = this.topWindow;
    } else {
        var frame = this.getCurrentPage().findElement(target);
        if (frame == null) {
            throw new SeleniumError("Not found: " + target);
        }
        // now, did they give us a frame or a frame ELEMENT?
        if (frame.contentWindow) {
            // this must be a frame element
            this.currentWindow = frame.contentWindow;
        } else if (frame.document) {
            // must be an actual window frame
            this.currentWindow = frame;
        } else {
            // neither
            throw new SeleniumError("Not a frame: " + target);
        }
    }
    this.currentPage = null;
};

BrowserBot.prototype.openLocation = function(target) {
    // We're moving to a new page - clear the current one
    var win = this.getCurrentWindow();
    LOG.debug("openLocation newPageLoaded = false");
    this.currentPage = null;
    this.newPageLoaded = false;

    this.setOpenLocation(win, target);
};

BrowserBot.prototype.setIFrameLocation = function(iframe, location) {
    iframe.src = location;
};

BrowserBot.prototype.setOpenLocation = function(win, loc) {

    // is there a Permission Denied risk here? setting a timeout breaks Firefox
    //win.setTimeout(function() { win.location.href = loc; }, 0);
    win.location.href = loc;
};

BrowserBot.prototype.getCurrentPage = function() {
    if (this.currentPage == null) {
        var testWindow = this.getCurrentWindow();
        this.currentPage = PageBot.createForWindow(this);
        this.newPageLoaded = false;
    }

    return this.currentPage;
};

BrowserBot.prototype.modifyWindowToRecordPopUpDialogs = function(windowToModify, browserBot) {
    var self = this;

    windowToModify.alert = function(alert) {
        browserBot.recordedAlerts.push(alert);
        self.relayBotToRC("browserbot.recordedAlerts");
    };

    windowToModify.confirm = function(message) {
        browserBot.recordedConfirmations.push(message);
        var result = browserBot.nextConfirmResult;
        browserBot.nextConfirmResult = true;
        self.relayBotToRC("browserbot.recordedConfirmations");
        return result;
    };

    windowToModify.prompt = function(message) {
        browserBot.recordedPrompts.push(message);
        var result = !browserBot.nextConfirmResult ? null : browserBot.nextPromptResult;
        browserBot.nextConfirmResult = true;
        browserBot.nextPromptResult = '';
        self.relayBotToRC("browserbot.recordedPrompts");
        return result;
    };

    // Keep a reference to all popup windows by name
    // note that in IE the "windowName" argument must be a valid javascript identifier, it seems.
    var originalOpen = windowToModify.open;
    windowToModify.open = function(url, windowName, windowFeatures, replaceFlag) {
        var openedWindow = originalOpen(url, windowName, windowFeatures, replaceFlag);
        selenium.browserbot.openedWindows[windowName] = openedWindow;
        return openedWindow;
    };
};

/**
 * Call the supplied function when a the current page unloads and a new one loads.
 * This is done by polling continuously until the document changes and is fully loaded.
 */
BrowserBot.prototype.modifySeparateTestWindowToDetectPageLoads = function(windowObject) {
    // Since the unload event doesn't fire in Safari 1.3, we start polling immediately
    if (!windowObject) {
        LOG.warn("modifySeparateTestWindowToDetectPageLoads: no windowObject!");
        return;
    }
    if (this._windowClosed(windowObject)) {
        LOG.info("modifySeparateTestWindowToDetectPageLoads: windowObject was closed");
        return;
    }
    var oldMarker = this.isPollingForLoad(windowObject);
    if (oldMarker) {
        LOG.debug("modifySeparateTestWindowToDetectPageLoads: already polling this window: " + oldMarker);
        return;
    }

    var marker = 'selenium' + new Date().getTime();
    LOG.debug("Starting pollForLoad (" + marker + "): " + windowObject.document.location);
    this.pollingForLoad[marker] = true;
    // if this is a frame, add a load listener, otherwise, attach a poller
    if (this._getFrameElement(windowObject)) {
        LOG.debug("modifySeparateTestWindowToDetectPageLoads: this window is a frame; attaching a load listener");
        addLoadListener(windowObject.frameElement, this.recordPageLoad);
        windowObject.frameElement[marker] = true;
        windowObject.frameElement[this.uniqueId] = marker;
    } else {
        windowObject.document.location[marker] = true;
        windowObject[this.uniqueId] = marker;
        this.pollForLoad(this.recordPageLoad, windowObject, windowObject.document, windowObject.location, windowObject.location.href, marker);
    }
};

BrowserBot.prototype._getFrameElement = function(win) {
    var frameElement = null;
    try {
        frameElement = win.frameElement;
    } catch (e) {
    } // on IE, checking frameElement on a pop-up results in a "No such interface supported" exception
    return frameElement;
}

/**
 * Set up a polling timer that will keep checking the readyState of the document until it's complete.
 * Since we might call this before the original page is unloaded, we first check to see that the current location
 * or href is different from the original one.
 */
BrowserBot.prototype.pollForLoad = function(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker) {
    LOG.debug("pollForLoad original (" + marker + "): " + originalHref);

    try {
        if (this._windowClosed(windowObject)) {
            LOG.debug("pollForLoad WINDOW CLOSED (" + marker + ")");
            delete this.pollingForLoad[marker];
            return;
        }
        // todo: Change this!!!
        // under multi-window layout, buttonWindow should be TestRunner window
        // but only after the _windowClosed checking, we can ensure that this.topWindow exists
        // then we can assign the TestRunner window to buttonWindow
        this.buttonWindow = windowObject.opener;

        var isSamePage = this._isSamePage(windowObject, originalDocument, originalLocation, originalHref, marker);
        var rs = this.getReadyState(windowObject, windowObject.document);

        if (!isSamePage && rs == 'complete') {
            var currentHref = windowObject.location.href;
            LOG.debug("pollForLoad FINISHED (" + marker + "): " + rs + " (" + currentHref + ")");
            delete this.pollingForLoad[marker];
            this._modifyWindow(windowObject);
            var newMarker = this.isPollingForLoad(windowObject);
            if (!newMarker) {
                LOG.debug("modifyWindow didn't start new poller: " + newMarker);
                this.modifySeparateTestWindowToDetectPageLoads(windowObject);
            }
            newMarker = this.isPollingForLoad(windowObject);
            LOG.debug("pollForLoad (" + marker + ") restarting " + newMarker);
            if (/(TestRunner-splash|Blank)\.html\?start=true$/.test(currentHref)) {
                LOG.debug("pollForLoad Oh, it's just the starting page.  Never mind!");
            } else if (this.currentWindow[this.uniqueId] == newMarker) {
                loadFunction();
            } else {
                LOG.debug("pollForLoad page load detected in non-current window; ignoring");
            }
            return;
        }
        LOG.debug("pollForLoad continue (" + marker + "): " + currentHref);
        this.reschedulePoller(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
    } catch (e) {
        LOG.error("Exception during pollForLoad; this should get noticed soon (" + e.message + ")!");
        LOG.exception(e);
        this.pageLoadError = e;
    }
};

BrowserBot.prototype._isSamePage = function(windowObject, originalDocument, originalLocation, originalHref, marker) {
    var currentDocument = windowObject.document;
    var currentLocation = windowObject.location;
    var currentHref = currentLocation.href

    var sameDoc = this._isSameDocument(originalDocument, currentDocument);

    var sameLoc = (originalLocation === currentLocation);
    var sameHref = (originalHref === currentHref);
    var markedLoc = currentLocation[marker];

    if (browserVersion.isKonqueror || browserVersion.isSafari) {
        // the mark disappears too early on these browsers
        markedLoc = true;
    }
    return sameDoc && sameLoc && sameHref && markedLoc
};

BrowserBot.prototype._isSameDocument = function(originalDocument, currentDocument) {
    return originalDocument === currentDocument;
};


BrowserBot.prototype.getReadyState = function(windowObject, currentDocument) {
    var rs = currentDocument.readyState;
    if (rs == null) {
       if ((this.buttonWindow!=null && this.buttonWindow.document.readyState == null) // not proxy injection mode (and therefore buttonWindow isn't null)
       || (top.document.readyState == null)) {                                               // proxy injection mode (and therefore everything's in the top window, but buttonWindow doesn't exist)
            // uh oh!  we're probably on Firefox with no readyState extension installed!
            // We'll have to just take a guess as to when the document is loaded; this guess
            // will never be perfect. :-(
            if (typeof currentDocument.getElementsByTagName != 'undefined'
                    && typeof currentDocument.getElementById != 'undefined'
                    && ( currentDocument.getElementsByTagName('body')[0] != null
                    || currentDocument.body != null )) {
                if (windowObject.frameElement && windowObject.location.href == "about:blank" && windowObject.frameElement.src != "about:blank") {
                    LOG.info("getReadyState not loaded, frame location was about:blank, but frame src = " + windowObject.frameElement.src);
                    return null;
                }
                LOG.debug("getReadyState = windowObject.frames.length = " + windowObject.frames.length);
                for (var i = 0; i < windowObject.frames.length; i++) {
                    LOG.debug("i = " + i);
                    if (this.getReadyState(windowObject.frames[i], windowObject.frames[i].document) != 'complete') {
                        LOG.debug("getReadyState aha! the nested frame " + windowObject.frames[i].name + " wasn't ready!");
                        return null;
                    }
                }

                rs = 'complete';
            } else {
                LOG.debug("pollForLoad readyState was null and DOM appeared to not be ready yet");
            }
        }
    }
    else if (rs == "loading" && browserVersion.isIE) {
        LOG.debug("pageUnloading = true!!!!");
        this.pageUnloading = true;
    }
    LOG.debug("getReadyState returning " + rs);
    return rs;
};

/** This function isn't used normally, but was the way we used to schedule pollers:
 asynchronously executed autonomous units.  This is deprecated, but remains here
 for future reference.
 */
BrowserBot.prototype.XXXreschedulePoller = function(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker) {
    var self = this;
    window.setTimeout(function() {
        self.pollForLoad(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
    }, 500);
};

/** This function isn't used normally, but is useful for debugging asynchronous pollers
 * To enable it, rename it to "reschedulePoller", so it will override the
 * existing reschedulePoller function
 */
BrowserBot.prototype.XXXreschedulePoller = function(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker) {
    var doc = this.buttonWindow.document;
    var button = doc.createElement("button");
    var buttonName = doc.createTextNode(marker + " - " + windowObject.name);
    button.appendChild(buttonName);
    var tools = doc.getElementById("tools");
    var self = this;
    button.onclick = function() {
        tools.removeChild(button);
        self.pollForLoad(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
    };
    tools.appendChild(button);
    window.setTimeout(button.onclick, 500);
};

BrowserBot.prototype.reschedulePoller = function(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker) {
    var self = this;
    var pollerFunction = function() {
        self.pollForLoad(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
    };
    this.windowPollers.push(pollerFunction);
};

BrowserBot.prototype.runScheduledPollers = function() {
    var oldPollers = this.windowPollers;
    this.windowPollers = new Array();
    for (var i = 0; i < oldPollers.length; i++) {
        oldPollers[i].call();
    }
};

BrowserBot.prototype.isPollingForLoad = function(win) {
    var marker;
    if (this._getFrameElement(win)) {
        marker = win.frameElement[this.uniqueId];
    } else {
        marker = win[this.uniqueId];
    }
    if (!marker) {
        LOG.debug("isPollingForLoad false, missing uniqueId " + this.uniqueId + ": " + marker);
        return false;
    }
    if (!this.pollingForLoad[marker]) {
        LOG.debug("isPollingForLoad false, this.pollingForLoad[" + marker + "]: " + this.pollingForLoad[marker]);
        return false;
    }
    return marker;
};

BrowserBot.prototype.getWindowByName = function(windowName, doNotModify) {
    LOG.debug("getWindowByName(" + windowName + ")");
    // First look in the map of opened windows
    var targetWindow = this.openedWindows[windowName];
    if (!targetWindow) {
        targetWindow = this.topWindow[windowName];
    }
    if (!targetWindow) {
        throw new SeleniumError("Window does not exist");
    }
    if (!doNotModify) {
        this._modifyWindow(targetWindow);
    }
    return targetWindow;
};

BrowserBot.prototype.getCurrentWindow = function(doNotModify) {
    var testWindow = this.currentWindow;
    if (!doNotModify) {
        this._modifyWindow(testWindow);
    }
    return testWindow;
};

function MozillaBrowserBot(frame) {
    BrowserBot.call(this, frame);
}
MozillaBrowserBot.prototype = new BrowserBot;

function KonquerorBrowserBot(frame) {
    BrowserBot.call(this, frame);
}
KonquerorBrowserBot.prototype = new BrowserBot;

KonquerorBrowserBot.prototype.setIFrameLocation = function(iframe, location) {
    // Window doesn't fire onload event when setting src to the current value,
    // so we set it to blank first.
    iframe.src = "about:blank";
    iframe.src = location;
};

KonquerorBrowserBot.prototype.setOpenLocation = function(win, loc) {
    // Window doesn't fire onload event when setting src to the current value,
    // so we set it to blank first.
    win.location.href = "about:blank";
    win.location.href = loc;
    // force the current polling thread to detect a page load
    var marker = this.isPollingForLoad(win);
    if (marker) {
        delete win.location[marker];
    }
};

KonquerorBrowserBot.prototype._isSameDocument = function(originalDocument, currentDocument) {
    // under Konqueror, there may be this case:
    // originalDocument and currentDocument are different objects
    // while their location are same.
    if (originalDocument) {
        return originalDocument.location == currentDocument.location
    } else {
        return originalDocument === currentDocument;
    }
};

function SafariBrowserBot(frame) {
    BrowserBot.call(this, frame);
}
SafariBrowserBot.prototype = new BrowserBot;

SafariBrowserBot.prototype.setIFrameLocation = KonquerorBrowserBot.prototype.setIFrameLocation;
SafariBrowserBot.prototype.setOpenLocation = KonquerorBrowserBot.prototype.setOpenLocation;


function OperaBrowserBot(frame) {
    BrowserBot.call(this, frame);
}
OperaBrowserBot.prototype = new BrowserBot;
OperaBrowserBot.prototype.setIFrameLocation = function(iframe, location) {
    if (iframe.src == location) {
        iframe.src = location + '?reload';
    } else {
        iframe.src = location;
    }
}

function IEBrowserBot(frame) {
    BrowserBot.call(this, frame);
}
IEBrowserBot.prototype = new BrowserBot;

IEBrowserBot.prototype.modifyWindowToRecordPopUpDialogs = function(windowToModify, browserBot) {
    BrowserBot.prototype.modifyWindowToRecordPopUpDialogs(windowToModify, browserBot);

    // we will call the previous version of this method from within our own interception
    oldShowModalDialog = windowToModify.showModalDialog;

    windowToModify.showModalDialog = function(url, args, features) {
        // Get relative directory to where TestRunner.html lives
        // A risky assumption is that the user's TestRunner is named TestRunner.html
        var doc_location = document.location.toString();
        var end_of_base_ref = doc_location.indexOf('TestRunner.html');
        var base_ref = doc_location.substring(0, end_of_base_ref);

        var fullURL = base_ref + "TestRunner.html?singletest=" + escape(browserBot.modalDialogTest) + "&autoURL=" + escape(url) + "&runInterval=" + runOptions.runInterval;
        browserBot.modalDialogTest = null;

        var returnValue = oldShowModalDialog(fullURL, args, features);
        return returnValue;
    };
};

IEBrowserBot.prototype.modifySeparateTestWindowToDetectPageLoads = function(windowObject) {
    this.pageUnloading = false;
    this.permDeniedCount = 0;
    var self = this;
    var pageUnloadDetector = function() {
        self.pageUnloading = true;
    };
    windowObject.attachEvent("onbeforeunload", pageUnloadDetector);
    BrowserBot.prototype.modifySeparateTestWindowToDetectPageLoads.call(this, windowObject);
};

IEBrowserBot.prototype.pollForLoad = function(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker) {
    BrowserBot.prototype.pollForLoad.call(this, loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
    if (this.pageLoadError) {
        if (this.pageUnloading) {
            var self = this;
            LOG.warn("pollForLoad UNLOADING (" + marker + "): caught exception while firing events on unloading page: " + this.pageLoadError.message);
            this.reschedulePoller(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
            this.pageLoadError = null;
            return;
        } else if (((this.pageLoadError.message == "Permission denied") || (/^Access is denied/.test(this.pageLoadError.message)))
                && this.permDeniedCount++ < 4) {
            var self = this;
            LOG.warn("pollForLoad (" + marker + "): " + this.pageLoadError.message + " (" + this.permDeniedCount + "), waiting to see if it goes away");
            this.reschedulePoller(loadFunction, windowObject, originalDocument, originalLocation, originalHref, marker);
            this.pageLoadError = null;
            return;
        }
        //handy for debugging!
        //throw this.pageLoadError;
    }
};

IEBrowserBot.prototype._windowClosed = function(win) {
    try {
        var c = win.closed;
        // frame windows claim to be non-closed when their parents are closed
        // but you can't access their document objects in that case
        if (!c) {
            try {
                win.document;
            } catch (de) {
                if (de.message == "Permission denied") {
                    // the window is probably unloading, which means it's probably not closed yet
                    return false;
                }
                else if (/^Access is denied/.test(de.message)) {
                    // rare variation on "Permission denied"?
                    LOG.debug("IEBrowserBot.windowClosed: got " + de.message + " (this.pageUnloading=" + this.pageUnloading + "); assuming window is unloading, probably not closed yet");
                    return false;
                } else {
                    // this is probably one of those frame window situations
                    LOG.debug("IEBrowserBot.windowClosed: couldn't read win.document, assume closed: " + de.message + " (this.pageUnloading=" + this.pageUnloading + ")");
                    return true;
                }
            }
        }
        if (c == null) {
            LOG.debug("IEBrowserBot.windowClosed: win.closed was null, assuming closed");
            return true;
        }
        return c;
    } catch (e) {
        // Got an exception trying to read win.closed; we'll have to take a guess!
        if (browserVersion.isHTA) {
            if (e.message == "Permission denied") {
                // the window is probably unloading, which means it's probably not closed yet
                return false;
            } else {
                // there's a good chance that we've lost contact with the window object if it is closed
                return true;
            }
        } else {
            // the window is probably unloading, which means it's probably not closed yet
            return false;
        }
    }
};

SafariBrowserBot.prototype.modifyWindowToRecordPopUpDialogs = function(windowToModify, browserBot) {
    BrowserBot.prototype.modifyWindowToRecordPopUpDialogs(windowToModify, browserBot);

    var originalOpen = windowToModify.open;
    /*
     * Safari seems to be broken, so that when we manually trigger the onclick method
     * of a button/href, any window.open calls aren't resolved relative to the app location.
     * So here we replace the open() method with one that does resolve the url correctly.
     */
    windowToModify.open = function(url, windowName, windowFeatures, replaceFlag) {

        if (url.startsWith("http://") || url.startsWith("https://") || url.startsWith("/")) {
            return originalOpen(url, windowName, windowFeatures, replaceFlag);
        }

        // Reduce the current path to the directory
        var currentPath = windowToModify.location.pathname || "/";
        currentPath = currentPath.replace(/\/[^\/]*$/, "/");

        // Remove any leading "./" from the new url.
        url = url.replace(/^\.\//, "");

        newUrl = currentPath + url;

        return originalOpen(newUrl, windowName, windowFeatures, replaceFlag);
    };
};

var PageBot = function(browserbot) {
    this.browserbot = browserbot;
    this._registerAllLocatorFunctions();
};

PageBot.prototype._registerAllLocatorFunctions = function() {
    // TODO - don't do this in the constructor - only needed once ever
    this.locationStrategies = {};
    for (var functionName in this) {
        var result = /^locateElementBy([A-Z].+)$/.exec(functionName);
        if (result != null) {
            var locatorFunction = this[functionName];
            if (typeof(locatorFunction) != 'function') {
                continue;
            }
            // Use a specified prefix in preference to one generated from
            // the function name
            var locatorPrefix = locatorFunction.prefix || result[1].toLowerCase();
            this.locationStrategies[locatorPrefix] = locatorFunction;
        }
    }

    /**
     * Find a locator based on a prefix.
     */
    this.findElementBy = function(locatorType, locator, inDocument, inWindow) {
        var locatorFunction = this.locationStrategies[locatorType];
        if (! locatorFunction) {
            throw new SeleniumError("Unrecognised locator type: '" + locatorType + "'");
        }
        return locatorFunction.call(this, locator, inDocument, inWindow);
    };

    /**
     * The implicit locator, that is used when no prefix is supplied.
     */
    this.locationStrategies['implicit'] = function(locator, inDocument, inWindow) {
        if (locator.startsWith('//')) {
            return this.locateElementByXPath(locator, inDocument, inWindow);
        }
        if (locator.startsWith('document.')) {
            return this.locateElementByDomTraversal(locator, inDocument, inWindow);
        }
        return this.locateElementByIdentifier(locator, inDocument, inWindow);
    };
}

PageBot.prototype.getDocument = function() {
    return this.getCurrentWindow().document;
}

PageBot.prototype.getCurrentWindow = function() {
    return this.browserbot.getCurrentWindow();
}

PageBot.prototype.getTitle = function() {
    var t = this.getDocument().title;
    if (typeof(t) == "string") {
        t = t.trim();
    }
    return t;
}

// todo: this is a bad name ... we're not passing a window in
PageBot.createForWindow = function(browserbot) {
    if (browserVersion.isIE) {
        return new IEPageBot(browserbot);
    }
    else if (browserVersion.isKonqueror) {
        return new KonquerorPageBot(browserbot);
    }
    else if (browserVersion.isSafari) {
        return new SafariPageBot(browserbot);
    }
    else if (browserVersion.isOpera) {
        return new OperaPageBot(browserbot);
    }
    else {
        // Use mozilla by default
        return new MozillaPageBot(browserbot);
    }
};

var MozillaPageBot = function(browserbot) {
    PageBot.call(this, browserbot);
};
MozillaPageBot.prototype = new PageBot();

var KonquerorPageBot = function(browserbot) {
    PageBot.call(this, browserbot);
};
KonquerorPageBot.prototype = new PageBot();

var SafariPageBot = function(browserbot) {
    PageBot.call(this, browserbot);
};
SafariPageBot.prototype = new PageBot();

var IEPageBot = function(browserbot) {
    PageBot.call(this, browserbot);
};
IEPageBot.prototype = new PageBot();

var OperaPageBot = function(browserbot) {
    PageBot.call(this, browserbot);
};
OperaPageBot.prototype = new PageBot();

/*
* Finds an element on the current page, using various lookup protocols
*/
PageBot.prototype.findElement = function(locator) {
    var locatorType = 'implicit';
    var locatorString = locator;

    // If there is a locator prefix, use the specified strategy
    var result = locator.match(/^([A-Za-z]+)=(.+)/);
    if (result) {
        locatorType = result[1].toLowerCase();
        locatorString = result[2];
    }

    var element = this.findElementBy(locatorType, locatorString, this.getDocument(), this.getCurrentWindow());
    if (element != null) {
        return this.highlight(element);
    }
    for (var i = 0; i < this.getCurrentWindow().frames.length; i++) {
        element = this.findElementBy(locatorType, locatorString, this.getCurrentWindow().frames[i].document, this.getCurrentWindow().frames[i]);
        if (element != null) {
            return this.highlight(element);
        }
    }

    // Element was not found by any locator function.
    throw new SeleniumError("Element " + locator + " not found");
};

PageBot.prototype.highlight = function (element) {
    if (shouldHighlightLocatedElement) {
        Effect.highlight(element);
    }
    return element;
}

// as a static variable.
var shouldHighlightLocatedElement = false;

PageBot.prototype.setHighlightElement = function (shouldHighlight) {
    shouldHighlightLocatedElement = shouldHighlight;
}

/**
 * In non-IE browsers, getElementById() does not search by name.  Instead, we
 * we search separately by id and name.
 */
PageBot.prototype.locateElementByIdentifier = function(identifier, inDocument, inWindow) {
    return PageBot.prototype.locateElementById(identifier, inDocument, inWindow)
            || PageBot.prototype.locateElementByName(identifier, inDocument, inWindow)
            || null;
};

/**
 * In IE, getElementById() also searches by name - this is an optimisation for IE.
 */
IEPageBot.prototype.locateElementByIdentifer = function(identifier, inDocument, inWindow) {
    return inDocument.getElementById(identifier);
};

/**
 * Find the element with id - can't rely on getElementById, coz it returns by name as well in IE..
 */
PageBot.prototype.locateElementById = function(identifier, inDocument, inWindow) {
    var element = inDocument.getElementById(identifier);
    if (element && element.id === identifier) {
        return element;
    }
    else {
        return null;
    }
};

/**
 * Find an element by name, refined by (optional) element-filter
 * expressions.
 */
PageBot.prototype.locateElementByName = function(locator, document, inWindow) {
    var elements = document.getElementsByTagName("*");

    var filters = locator.split(' ');
    filters[0] = 'name=' + filters[0];

    while (filters.length) {
        var filter = filters.shift();
        elements = this.selectElements(filter, elements, 'value');
    }

    if (elements.length > 0) {
        return elements[0];
    }
    return null;
};

/**
 * Finds an element using by evaluating the specfied string.
 */
PageBot.prototype.locateElementByDomTraversal = function(domTraversal, inDocument, inWindow) {

    var element = null;
    try {
        if (browserVersion.isOpera) {
            element = inWindow.eval(domTraversal);
        } else {
            element = eval("inWindow." + domTraversal);
        }
    } catch (e) {
        e.isSeleniumError = true;
        throw e;
    }

    if (!element) {
        return null;
    }

    return element;
};
PageBot.prototype.locateElementByDomTraversal.prefix = "dom";

/**
 * Finds an element identified by the xpath expression. Expressions _must_
 * begin with "//".
 */
PageBot.prototype.locateElementByXPath = function(xpath, inDocument, inWindow) {

    // Trim any trailing "/": not valid xpath, and remains from attribute
    // locator.
    if (xpath.charAt(xpath.length - 1) == '/') {
        xpath = xpath.slice(0, -1);
    }

    // Handle //tag
    var match = xpath.match(/^\/\/(\w+|\*)$/);
    if (match) {
        var elements = inDocument.getElementsByTagName(match[1].toUpperCase());
        if (elements == null) return null;
        return elements[0];
    }

    // Handle //tag[@attr='value']
    var match = xpath.match(/^\/\/(\w+|\*)\[@(\w+)=('([^\']+)'|"([^\"]+)")\]$/);
    if (match) {
        return this._findElementByTagNameAndAttributeValue(
                inDocument,
                match[1].toUpperCase(),
                match[2].toLowerCase(),
                match[3].slice(1, -1)
                );
    }

    // Handle //tag[text()='value']
    var match = xpath.match(/^\/\/(\w+|\*)\[text\(\)=('([^\']+)'|"([^\"]+)")\]$/);
    if (match) {
        return this._findElementByTagNameAndText(
                inDocument,
                match[1].toUpperCase(),
                match[2].slice(1, -1)
                );
    }

    return this._findElementUsingFullXPath(xpath, inDocument);
};

PageBot.prototype._findElementByTagNameAndAttributeValue = function(
        inDocument, tagName, attributeName, attributeValue
        ) {
    if (browserVersion.isIE && attributeName == "class") {
        attributeName = "className";
    }
    var elements = inDocument.getElementsByTagName(tagName);
    for (var i = 0; i < elements.length; i++) {
        var elementAttr = elements[i].getAttribute(attributeName);
        if (elementAttr == attributeValue) {
            return elements[i];
        }
    }
    return null;
};

PageBot.prototype._findElementByTagNameAndText = function(
        inDocument, tagName, text
        ) {
    var elements = inDocument.getElementsByTagName(tagName);
    for (var i = 0; i < elements.length; i++) {
        if (getText(elements[i]) == text) {
            return elements[i];
        }
    }
    return null;
};

PageBot.prototype._namespaceResolver = function(prefix) {
    if (prefix == 'html' || prefix == 'xhtml' || prefix == 'x') {
        return 'http://www.w3.org/1999/xhtml';
    } else if (prefix == 'mathml') {
        return 'http://www.w3.org/1998/Math/MathML';
    } else {
        throw new Error("Unknown namespace: " + prefix + ".");
    }
}

PageBot.prototype._findElementUsingFullXPath = function(xpath, inDocument, inWindow) {
    // HUGE hack - remove namespace from xpath for IE
    if (browserVersion.isIE) {
        xpath = xpath.replace(/x:/g, '')
    }

    // Use document.evaluate() if it's available
    if (inDocument.evaluate) {
        return inDocument.evaluate(xpath, inDocument, this._namespaceResolver, 0, null).iterateNext();
    }

    // If not, fall back to slower JavaScript implementation
    var context = new ExprContext(inDocument);
    var xpathObj = xpathParse(xpath);
    var xpathResult = xpathObj.evaluate(context);
    if (xpathResult && xpathResult.value) {
        return xpathResult.value[0];
    }
    return null;
};

/**
 * Finds a link element with text matching the expression supplied. Expressions must
 * begin with "link:".
 */
PageBot.prototype.locateElementByLinkText = function(linkText, inDocument, inWindow) {
    var links = inDocument.getElementsByTagName('a');
    for (var i = 0; i < links.length; i++) {
        var element = links[i];
        if (PatternMatcher.matches(linkText, getText(element))) {
            return element;
        }
    }
    return null;
};
PageBot.prototype.locateElementByLinkText.prefix = "link";

/**
 * Returns an attribute based on an attribute locator. This is made up of an element locator
 * suffixed with @attribute-name.
 */
PageBot.prototype.findAttribute = function(locator) {
    // Split into locator + attributeName
    var attributePos = locator.lastIndexOf("@");
    var elementLocator = locator.slice(0, attributePos);
    var attributeName = locator.slice(attributePos + 1);

    // Find the element.
    var element = this.findElement(elementLocator);

    // Handle missing "class" attribute in IE.
    if (browserVersion.isIE && attributeName == "class") {
        attributeName = "className";
    }

    // Get the attribute value.
    var attributeValue = element.getAttribute(attributeName);

    return attributeValue ? attributeValue.toString() : null;
};

/*
* Select the specified option and trigger the relevant events of the element.
*/
PageBot.prototype.selectOption = function(element, optionToSelect) {
    triggerEvent(element, 'focus', false);
    var changed = false;
    for (var i = 0; i < element.options.length; i++) {
        var option = element.options[i];
        if (option.selected && option != optionToSelect) {
            option.selected = false;
            changed = true;
        }
        else if (!option.selected && option == optionToSelect) {
            option.selected = true;
            changed = true;
        }
    }

    if (changed) {
        triggerEvent(element, 'change', true);
    }
};

/*
* Select the specified option and trigger the relevant events of the element.
*/
PageBot.prototype.addSelection = function(element, option) {
    this.checkMultiselect(element);
    triggerEvent(element, 'focus', false);
    if (!option.selected) {
        option.selected = true;
        triggerEvent(element, 'change', true);
    }
};

/*
* Select the specified option and trigger the relevant events of the element.
*/
PageBot.prototype.removeSelection = function(element, option) {
    this.checkMultiselect(element);
    triggerEvent(element, 'focus', false);
    if (option.selected) {
        option.selected = false;
        triggerEvent(element, 'change', true);
    }
};

PageBot.prototype.checkMultiselect = function(element) {
    if (!element.multiple)
    {
        throw new SeleniumError("Not a multi-select");
    }

};

PageBot.prototype.replaceText = function(element, stringValue) {
    triggerEvent(element, 'focus', false);
    triggerEvent(element, 'select', true);
    var maxLengthAttr = element.getAttribute("maxLength");
    var actualValue = stringValue;
    if (maxLengthAttr != null) {
        var maxLength = parseInt(maxLengthAttr);
        if (stringValue.length > maxLength) {
            LOG.warn("BEFORE")
            actualValue = stringValue.substr(0, maxLength);
            LOG.warn("AFTER")
        }
    }
    element.value = actualValue;
    // DGF this used to be skipped in chrome URLs, but no longer.  Is xpcnativewrappers to blame?
    triggerEvent(element, 'change', true);
};

MozillaPageBot.prototype.clickElement = function(element, clientX, clientY) {

    triggerEvent(element, 'focus', false);

    // Add an event listener that detects if the default action has been prevented.
    // (This is caused by a javascript onclick handler returning false)
    var preventDefault = false;

    element.addEventListener("click", function(evt) {
        preventDefault = evt.getPreventDefault();
    }, false);

    // Trigger the click event.
    triggerMouseEvent(element, 'click', true, clientX, clientY);

    // Perform the link action if preventDefault was set.
    // In chrome URL, the link action is already executed by triggerMouseEvent.
    if (!browserVersion.isChrome && !preventDefault) {
        var targetWindow = this.browserbot._getTargetWindow(element);
        if (element.href) {
            targetWindow.location.href = element.href;
        } else {
            this.browserbot._handleClickingImagesInsideLinks(targetWindow, element);
        }
    }

    if (this._windowClosed()) {
        return;
    }

};

BrowserBot.prototype._handleClickingImagesInsideLinks = function(targetWindow, element) {
    if (element.parentNode && element.parentNode.href) {
        targetWindow.location.href = element.parentNode.href;
    }
}

BrowserBot.prototype._getTargetWindow = function(element) {
    var targetWindow = this.getCurrentWindow();
    if (element.target) {
        var frame = this._getFrameFromGlobal(element.target);
        targetWindow = frame.contentWindow;
    }
    return targetWindow;
}

BrowserBot.prototype._getFrameFromGlobal = function(target) {
    pagebot = PageBot.createForWindow(this);
    return pagebot.findElementBy("implicit", target, this.topWindow.document, this.topWindow);
}

OperaPageBot.prototype.clickElement = function(element, clientX, clientY) {

    triggerEvent(element, 'focus', false);

    // Trigger the click event.
    triggerMouseEvent(element, 'click', true, clientX, clientY);

    if (this._windowClosed()) {
        return;
    }

};


KonquerorPageBot.prototype.clickElement = function(element, clientX, clientY) {

    triggerEvent(element, 'focus', false);

    if (element.click) {
        element.click();
    }
    else {
        triggerMouseEvent(element, 'click', true, clientX, clientY);
    }

    if (this._windowClosed()) {
        return;
    }

};

SafariPageBot.prototype.clickElement = function(element, clientX, clientY) {
    triggerEvent(element, 'focus', false);
    var wasChecked = element.checked;

    // For form element it is simple.
    if (element.click) {
        element.click();
    }
    // For links and other elements, event emulation is required.
    else {
        var targetWindow = this.browserbot._getTargetWindow(element);
        // todo: what if the target anchor is on another page?
        if (element.href && element.href.indexOf("#") != -1) {
            var b = targetWindow.document.getElementById(element.href.split("#")[1]);
            targetWindow.document.body.scrollTop = b.offsetTop;
        } else {
            triggerMouseEvent(element, 'click', true, clientX, clientY);
        }

    }

};

IEPageBot.prototype.clickElement = function(element, clientX, clientY) {

    triggerEvent(element, 'focus', false);

    var wasChecked = element.checked;

    // Set a flag that records if the page will unload - this isn't always accurate, because
    // <a href="javascript:alert('foo'):"> triggers the onbeforeunload event, even thought the page won't unload
    var pageUnloading = false;
    var pageUnloadDetector = function() {
        pageUnloading = true;
    };
    this.getCurrentWindow().attachEvent("onbeforeunload", pageUnloadDetector);
    element.click();


    // If the page is going to unload - still attempt to fire any subsequent events.
    // However, we can't guarantee that the page won't unload half way through, so we need to handle exceptions.
    try {
        this.getCurrentWindow().detachEvent("onbeforeunload", pageUnloadDetector);

        if (this._windowClosed()) {
            return;
        }

        // Onchange event is not triggered automatically in IE.
        if (isDefined(element.checked) && wasChecked != element.checked) {
            triggerEvent(element, 'change', true);
        }

    }
    catch (e) {
        // If the page is unloading, we may get a "Permission denied" or "Unspecified error".
        // Just ignore it, because the document may have unloaded.
        if (pageUnloading) {
            LOG.logHook = function() {
            };
            LOG.warn("Caught exception when firing events on unloading page: " + e.message);
            return;
        }
        throw e;
    }
};

PageBot.prototype._windowClosed = function(element) {
    return selenium.browserbot._windowClosed(this.getCurrentWindow());
};

PageBot.prototype.bodyText = function() {
    return getText(this.getDocument().body);
};

PageBot.prototype.getAllButtons = function() {
    var elements = this.getDocument().getElementsByTagName('input');
    var result = '';

    for (var i = 0; i < elements.length; i++) {
        if (elements[i].type == 'button' || elements[i].type == 'submit' || elements[i].type == 'reset') {
            result += elements[i].id;

            result += ',';
        }
    }

    return result;
};


PageBot.prototype.getAllFields = function() {
    var elements = this.getDocument().getElementsByTagName('input');
    var result = '';

    for (var i = 0; i < elements.length; i++) {
        if (elements[i].type == 'text') {
            result += elements[i].id;

            result += ',';
        }
    }

    return result;
};

PageBot.prototype.getAllLinks = function() {
    var elements = this.getDocument().getElementsByTagName('a');
    var result = '';

    for (var i = 0; i < elements.length; i++) {
        result += elements[i].id;

        result += ',';
    }

    return result;
};

PageBot.prototype.setContext = function(strContext, logLevel) {
    //set the current test title
    var ctx = document.getElementById("context");
    if (ctx != null) {
        ctx.innerHTML = strContext;
    }
    if (logLevel != null) {
        LOG.setLogLevelThreshold(logLevel);
    }
};

function isDefined(value) {
    return typeof(value) != undefined;
}

PageBot.prototype.goBack = function() {
    this.getCurrentWindow().history.back();
};

PageBot.prototype.goForward = function() {
    this.getCurrentWindow().history.forward();
};

PageBot.prototype.close = function() {
    if (browserVersion.isChrome || browserVersion.isSafari) {
        this.getCurrentWindow().close();
    } else {
        this.getCurrentWindow().eval("window.close();");
    }
};

PageBot.prototype.refresh = function() {
    this.getCurrentWindow().location.reload(true);
};

/**
 * Refine a list of elements using a filter.
 */
PageBot.prototype.selectElementsBy = function(filterType, filter, elements) {
    var filterFunction = PageBot.filterFunctions[filterType];
    if (! filterFunction) {
        throw new SeleniumError("Unrecognised element-filter type: '" + filterType + "'");
    }

    return filterFunction(filter, elements);
};

PageBot.filterFunctions = {};

PageBot.filterFunctions.name = function(name, elements) {
    var selectedElements = [];
    for (var i = 0; i < elements.length; i++) {
        if (elements[i].name === name) {
            selectedElements.push(elements[i]);
        }
    }
    return selectedElements;
};

PageBot.filterFunctions.value = function(value, elements) {
    var selectedElements = [];
    for (var i = 0; i < elements.length; i++) {
        if (elements[i].value === value) {
            selectedElements.push(elements[i]);
        }
    }
    return selectedElements;
};

PageBot.filterFunctions.index = function(index, elements) {
    index = Number(index);
    if (isNaN(index) || index < 0) {
        throw new SeleniumError("Illegal Index: " + index);
    }
    if (elements.length <= index) {
        throw new SeleniumError("Index out of range: " + index);
    }
    return [elements[index]];
};

PageBot.prototype.selectElements = function(filterExpr, elements, defaultFilterType) {

    var filterType = (defaultFilterType || 'value');

    // If there is a filter prefix, use the specified strategy
    var result = filterExpr.match(/^([A-Za-z]+)=(.+)/);
    if (result) {
        filterType = result[1].toLowerCase();
        filterExpr = result[2];
    }

    return this.selectElementsBy(filterType, filterExpr, elements);
};

/**
 * Find an element by class
 */
PageBot.prototype.locateElementByClass = function(locator, document) {
    return Element.findFirstMatchingChild(document,
            function(element) {
                return element.className == locator
            }
            );
}

/**
 * Find an element by alt
 */
PageBot.prototype.locateElementByAlt = function(locator, document) {
    return Element.findFirstMatchingChild(document,
            function(element) {
                return element.alt == locator
            }
            );
}

/**
 * Find an element by css selector
 */
PageBot.prototype.locateElementByCss = function(locator, document) {
    var elements = cssQuery(locator, document);
    if (elements.length != 0)
        return elements[0];
    return null;
}