summaryrefslogtreecommitdiffstats
path: root/application/palemoon/base/content/pageinfo/pageInfo.js
blob: f91a607afb73d6530cfa71aa9228f1aaf5ff5bc6 (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
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

const Cu = Components.utils;
Cu.import("resource://gre/modules/LoadContextInfo.jsm");
Cu.import("resource://gre/modules/Services.jsm");

//******** define a js object to implement nsITreeView
function pageInfoTreeView(treeid, copycol)
{
  // copycol is the index number for the column that we want to add to
  // the copy-n-paste buffer when the user hits accel-c
  this.treeid = treeid;
  this.copycol = copycol;
  this.rows = 0;
  this.tree = null;
  this.data = [ ];
  this.selection = null;
  this.sortcol = -1;
  this.sortdir = false;
}

pageInfoTreeView.prototype = {
  set rowCount(c) { throw "rowCount is a readonly property"; },
  get rowCount() { return this.rows; },

  setTree: function(tree)
  {
    this.tree = tree;
  },

  getCellText: function(row, column)
  {
    // row can be null, but js arrays are 0-indexed.
    // colidx cannot be null, but can be larger than the number
    // of columns in the array. In this case it's the fault of
    // whoever typoed while calling this function.
    return this.data[row][column.index] || "";
  },

  setCellValue: function(row, column, value)
  {
  },

  setCellText: function(row, column, value)
  {
    this.data[row][column.index] = value;
  },

  addRow: function(row)
  {
    this.rows = this.data.push(row);
    this.rowCountChanged(this.rows - 1, 1);
    if (this.selection.count == 0 && this.rowCount && !gImageElement)
      this.selection.select(0);
  },

  rowCountChanged: function(index, count)
  {
    this.tree.rowCountChanged(index, count);
  },

  invalidate: function()
  {
    this.tree.invalidate();
  },

  clear: function()
  {
    if (this.tree)
      this.tree.rowCountChanged(0, -this.rows);
    this.rows = 0;
    this.data = [ ];
  },

  handleCopy: function(row)
  {
    return (row < 0 || this.copycol < 0) ? "" : (this.data[row][this.copycol] || "");
  },

  performActionOnRow: function(action, row)
  {
    if (action == "copy") {
      var data = this.handleCopy(row)
      this.tree.treeBody.parentNode.setAttribute("copybuffer", data);
    }
  },

  onPageMediaSort : function(columnname)
  {
    var tree = document.getElementById(this.treeid);
    var treecol = tree.columns.getNamedColumn(columnname);

    this.sortdir =
      gTreeUtils.sort(
        tree,
        this,
        this.data,
        treecol.index,
        function textComparator(a, b) { return a.toLowerCase().localeCompare(b.toLowerCase()); },
        this.sortcol,
        this.sortdir
      );

    this.sortcol = treecol.index;
  },

  getRowProperties: function(row) { return ""; },
  getCellProperties: function(row, column) { return ""; },
  getColumnProperties: function(column) { return ""; },
  isContainer: function(index) { return false; },
  isContainerOpen: function(index) { return false; },
  isSeparator: function(index) { return false; },
  isSorted: function() { },
  canDrop: function(index, orientation) { return false; },
  drop: function(row, orientation) { return false; },
  getParentIndex: function(index) { return 0; },
  hasNextSibling: function(index, after) { return false; },
  getLevel: function(index) { return 0; },
  getImageSrc: function(row, column) { },
  getProgressMode: function(row, column) { },
  getCellValue: function(row, column) { },
  toggleOpenState: function(index) { },
  cycleHeader: function(col) { },
  selectionChanged: function() { },
  cycleCell: function(row, column) { },
  isEditable: function(row, column) { return false; },
  isSelectable: function(row, column) { return false; },
  performAction: function(action) { },
  performActionOnCell: function(action, row, column) { }
};

// mmm, yummy. global variables.
var gWindow = null;
var gDocument = null;
var gImageElement = null;

// column number to help using the data array
const COL_IMAGE_ADDRESS = 0;
const COL_IMAGE_TYPE    = 1;
const COL_IMAGE_SIZE    = 2;
const COL_IMAGE_ALT     = 3;
const COL_IMAGE_COUNT   = 4;
const COL_IMAGE_NODE    = 5;
const COL_IMAGE_BG      = 6;

// column number to copy from, second argument to pageInfoTreeView's constructor
const COPYCOL_NONE = -1;
const COPYCOL_META_CONTENT = 1;
const COPYCOL_IMAGE = COL_IMAGE_ADDRESS;

// one nsITreeView for each tree in the window
var gMetaView = new pageInfoTreeView('metatree', COPYCOL_META_CONTENT);
var gImageView = new pageInfoTreeView('imagetree', COPYCOL_IMAGE);

gImageView.getCellProperties = function(row, col) {
  var data = gImageView.data[row];
  var item = gImageView.data[row][COL_IMAGE_NODE];
  var props = "";
  if (!checkProtocol(data) ||
      item instanceof HTMLEmbedElement ||
      (item instanceof HTMLObjectElement && !item.type.startsWith("image/")))
    props += "broken";

  if (col.element.id == "image-address")
    props += " ltr";

  return props;
};

gImageView.getCellText = function(row, column) {
  var value = this.data[row][column.index];
  if (column.index == COL_IMAGE_SIZE) {
    if (value == -1) {
      return gStrings.unknown;
    } else {
      var kbSize = Number(Math.round(value / 1024 * 100) / 100);
      return gBundle.getFormattedString("mediaFileSize", [kbSize]);
    }
  }
  return value || "";
};

gImageView.onPageMediaSort = function(columnname) {
  var tree = document.getElementById(this.treeid);
  var treecol = tree.columns.getNamedColumn(columnname);

  var comparator;
  if (treecol.index == COL_IMAGE_SIZE || treecol.index == COL_IMAGE_COUNT) {
    comparator = function numComparator(a, b) { return a - b; };
  } else {
    comparator = function textComparator(a, b) { return a.toLowerCase().localeCompare(b.toLowerCase()); };
  }

  this.sortdir =
    gTreeUtils.sort(
      tree,
      this,
      this.data,
      treecol.index,
      comparator,
      this.sortcol,
      this.sortdir
    );

  this.sortcol = treecol.index;
};

var gImageHash = { };

// localized strings (will be filled in when the document is loaded)
// this isn't all of them, these are just the ones that would otherwise have been loaded inside a loop
var gStrings = { };
var gBundle;

const PERMISSION_CONTRACTID     = "@mozilla.org/permissionmanager;1";
const PREFERENCES_CONTRACTID    = "@mozilla.org/preferences-service;1";
const ATOM_CONTRACTID           = "@mozilla.org/atom-service;1";

// a number of services I'll need later
// the cache services
const nsICacheStorageService = Components.interfaces.nsICacheStorageService;
const nsICacheStorage = Components.interfaces.nsICacheStorage;
const cacheService = Components.classes["@mozilla.org/netwerk/cache-storage-service;1"].getService(nsICacheStorageService);

var loadContextInfo = LoadContextInfo.fromLoadContext(
  window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
        .getInterface(Components.interfaces.nsIWebNavigation)
        .QueryInterface(Components.interfaces.nsILoadContext), false);
var diskStorage = cacheService.diskCacheStorage(loadContextInfo, false);

const nsICookiePermission  = Components.interfaces.nsICookiePermission;
const nsIPermissionManager = Components.interfaces.nsIPermissionManager;

const nsICertificateDialogs = Components.interfaces.nsICertificateDialogs;
const CERTIFICATEDIALOGS_CONTRACTID = "@mozilla.org/nsCertificateDialogs;1"

// clipboard helper
function getClipboardHelper() {
    try {
        return Components.classes["@mozilla.org/widget/clipboardhelper;1"].getService(Components.interfaces.nsIClipboardHelper);
    } catch(e) {
        // do nothing, later code will handle the error
    }
}
const gClipboardHelper = getClipboardHelper();

// Interface for image loading content
const nsIImageLoadingContent = Components.interfaces.nsIImageLoadingContent;

// namespaces, don't need all of these yet...
const XLinkNS  = "http://www.w3.org/1999/xlink";
const XULNS    = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
const XMLNS    = "http://www.w3.org/XML/1998/namespace";
const XHTMLNS  = "http://www.w3.org/1999/xhtml";
const XHTML2NS = "http://www.w3.org/2002/06/xhtml2"

const XHTMLNSre  = "^http\:\/\/www\.w3\.org\/1999\/xhtml$";
const XHTML2NSre = "^http\:\/\/www\.w3\.org\/2002\/06\/xhtml2$";
const XHTMLre = RegExp(XHTMLNSre + "|" + XHTML2NSre, "");

/* Overlays register functions here.
 * These arrays are used to hold callbacks that Page Info will call at
 * various stages. Use them by simply appending a function to them.
 * For example, add a function to onLoadRegistry by invoking
 *   "onLoadRegistry.push(XXXLoadFunc);"
 * The XXXLoadFunc should be unique to the overlay module, and will be
 * invoked as "XXXLoadFunc();"
 */

// These functions are called to build the data displayed in the Page
// Info window. The global variables gDocument and gWindow are set.
var onLoadRegistry = [ ];

// These functions are called to remove old data still displayed in
// the window when the document whose information is displayed
// changes. For example, at this time, the list of images of the Media
// tab is cleared.
var onResetRegistry = [ ];

// These are called once for each subframe of the target document and
// the target document itself. The frame is passed as an argument.
var onProcessFrame = [ ];

// These functions are called once for each element (in all subframes, if any)
// in the target document. The element is passed as an argument.
var onProcessElement = [ ];

// These functions are called once when all the elements in all of the target
// document (and all of its subframes, if any) have been processed
var onFinished = [ ];

// These functions are called once when the Page Info window is closed.
var onUnloadRegistry = [ ];

// These functions are called once when an image preview is shown.
var onImagePreviewShown = [ ];

/* Called when PageInfo window is loaded.  Arguments are:
 *  window.arguments[0] - (optional) an object consisting of
 *                         - doc: (optional) document to use for source. if not provided,
 *                                the calling window's document will be used
 *                         - initialTab: (optional) id of the inital tab to display
 */
function onLoadPageInfo()
{
  gBundle = document.getElementById("pageinfobundle");
  gStrings.unknown = gBundle.getString("unknown");
  gStrings.notSet = gBundle.getString("notset");
  gStrings.mediaImg = gBundle.getString("mediaImg");
  gStrings.mediaBGImg = gBundle.getString("mediaBGImg");
  gStrings.mediaBorderImg = gBundle.getString("mediaBorderImg");
  gStrings.mediaListImg = gBundle.getString("mediaListImg");
  gStrings.mediaCursor = gBundle.getString("mediaCursor");
  gStrings.mediaObject = gBundle.getString("mediaObject");
  gStrings.mediaEmbed = gBundle.getString("mediaEmbed");
  gStrings.mediaLink = gBundle.getString("mediaLink");
  gStrings.mediaInput = gBundle.getString("mediaInput");
  gStrings.mediaVideo = gBundle.getString("mediaVideo");
  gStrings.mediaAudio = gBundle.getString("mediaAudio");

  var args = "arguments" in window &&
             window.arguments.length >= 1 &&
             window.arguments[0];

  if (!args || !args.doc) {
    gWindow = window.opener.content;
    gDocument = gWindow.document;
  }

  // init media view
  var imageTree = document.getElementById("imagetree");
  imageTree.view = gImageView;

  /* Select the requested tab, if the name is specified */
  loadTab(args);
  Components.classes["@mozilla.org/observer-service;1"]
            .getService(Components.interfaces.nsIObserverService)
            .notifyObservers(window, "page-info-dialog-loaded", null);
  
  // Make sure the page info window gets focus even if a doorhanger might
  // otherwise (async) steal it.
  window.focus();
}

function loadPageInfo()
{
  var titleFormat = gWindow != gWindow.top ? "pageInfo.frame.title"
                                           : "pageInfo.page.title";
  document.title = gBundle.getFormattedString(titleFormat, [gDocument.location]);

  document.getElementById("main-window").setAttribute("relatedUrl", gDocument.location);

  // do the easy stuff first
  makeGeneralTab();

  // and then the hard stuff
  makeTabs(gDocument, gWindow);

  initFeedTab();
  onLoadPermission();

  /* Call registered overlay init functions */
  onLoadRegistry.forEach(function(func) { func(); });
}

function resetPageInfo(args)
{
  /* Reset Meta tags part */
  gMetaView.clear();

  /* Reset Media tab */
  var mediaTab = document.getElementById("mediaTab");
  if (!mediaTab.hidden) {
    Components.classes["@mozilla.org/observer-service;1"]
              .getService(Components.interfaces.nsIObserverService)
              .removeObserver(imagePermissionObserver, "perm-changed");
    mediaTab.hidden = true;
  }
  gImageView.clear();
  gImageHash = {};

  /* Reset Feeds Tab */
  var feedListbox = document.getElementById("feedListbox");
  while (feedListbox.firstChild)
    feedListbox.removeChild(feedListbox.firstChild);

  /* Call registered overlay reset functions */
  onResetRegistry.forEach(function(func) { func(); });

  /* Rebuild the data */
  loadTab(args);
}

function onUnloadPageInfo()
{
  // Remove the observer, only if there is at least 1 image.
  if (!document.getElementById("mediaTab").hidden) {
    Components.classes["@mozilla.org/observer-service;1"]
              .getService(Components.interfaces.nsIObserverService)
              .removeObserver(imagePermissionObserver, "perm-changed");
  }

  /* Call registered overlay unload functions */
  onUnloadRegistry.forEach(function(func) { func(); });
}

function doHelpButton()
{
  const helpTopics = {
    "generalPanel":  "pageinfo_general",
    "mediaPanel":    "pageinfo_media",
    "feedPanel":     "pageinfo_feed",
    "permPanel":     "pageinfo_permissions",
    "securityPanel": "pageinfo_security"
  };

  var deck  = document.getElementById("mainDeck");
  var helpdoc = helpTopics[deck.selectedPanel.id] || "pageinfo_general";
  openHelpLink(helpdoc);
}

function showTab(id)
{
  var deck  = document.getElementById("mainDeck");
  var pagel = document.getElementById(id + "Panel");
  deck.selectedPanel = pagel;
}

function loadTab(args)
{
  if (args && args.doc) {
    gDocument = args.doc;
    gWindow = gDocument.defaultView;
  }

  gImageElement = args && args.imageElement;

  /* Load the page info */
  loadPageInfo();

  var initialTab = (args && args.initialTab) || "generalTab";
  var radioGroup = document.getElementById("viewGroup");
  initialTab = document.getElementById(initialTab) || document.getElementById("generalTab");
  radioGroup.selectedItem = initialTab;
  radioGroup.selectedItem.doCommand();
  radioGroup.focus();
}

function onClickMore()
{
  var radioGrp = document.getElementById("viewGroup");
  var radioElt = document.getElementById("securityTab");
  radioGrp.selectedItem = radioElt;
  showTab('security');
}

function toggleGroupbox(id)
{
  var elt = document.getElementById(id);
  if (elt.hasAttribute("closed")) {
    elt.removeAttribute("closed");
    if (elt.flexWhenOpened)
      elt.flex = elt.flexWhenOpened;
  }
  else {
    elt.setAttribute("closed", "true");
    if (elt.flex) {
      elt.flexWhenOpened = elt.flex;
      elt.flex = 0;
    }
  }
}

function openCacheEntry(key, cb)
{
  var checkCacheListener = {
    onCacheEntryCheck: function(entry, appCache) {
      return Components.interfaces.nsICacheEntryOpenCallback.ENTRY_WANTED;
    },
    onCacheEntryAvailable: function(entry, isNew, appCache, status) {
      cb(entry);
    },
    get mainThreadOnly() { return true; }
  };
  diskStorage.asyncOpenURI(Services.io.newURI(key, null, null), "", nsICacheStorage.OPEN_READONLY, checkCacheListener);
}

function makeGeneralTab()
{
  var title = (gDocument.title) ? gBundle.getFormattedString("pageTitle", [gDocument.title]) : gBundle.getString("noPageTitle");
  document.getElementById("titletext").value = title;

  var url = gDocument.location.toString();
  setItemValue("urltext", url);

  var referrer = ("referrer" in gDocument && gDocument.referrer);
  setItemValue("refertext", referrer);

  var mode = ("compatMode" in gDocument && gDocument.compatMode == "BackCompat") ? "generalQuirksMode" : "generalStrictMode";
  document.getElementById("modetext").value = gBundle.getString(mode);

  // find out the mime type
  var mimeType = gDocument.contentType;
  setItemValue("typetext", mimeType);

  // get the document characterset
  var encoding = gDocument.characterSet;
  document.getElementById("encodingtext").value = encoding;

  // get the meta tags
  var metaNodes = gDocument.getElementsByTagName("meta");
  var length = metaNodes.length;

  var metaGroup = document.getElementById("metaTags");
  if (!length)
    metaGroup.collapsed = true;
  else {
    var metaTagsCaption = document.getElementById("metaTagsCaption");
    if (length == 1)
      metaTagsCaption.label = gBundle.getString("generalMetaTag");
    else
      metaTagsCaption.label = gBundle.getFormattedString("generalMetaTags", [length]);
    var metaTree = document.getElementById("metatree");
    metaTree.view = gMetaView;

    for (var i = 0; i < length; i++)
      gMetaView.addRow([metaNodes[i].name || metaNodes[i].httpEquiv, metaNodes[i].content]);

    metaGroup.collapsed = false;
  }

  // get the date of last modification
  var modifiedText = formatDate(gDocument.lastModified, gStrings.notSet);
  document.getElementById("modifiedtext").value = modifiedText;

  // get cache info
  var cacheKey = url.replace(/#.*$/, "");
  openCacheEntry(cacheKey, function(cacheEntry) {
    var sizeText;
    if (cacheEntry) {
      var pageSize = cacheEntry.dataSize;
      var kbSize = formatNumber(Math.round(pageSize / 1024 * 100) / 100);
      sizeText = gBundle.getFormattedString("generalSize", [kbSize, formatNumber(pageSize)]);
    }
    setItemValue("sizetext", sizeText);
  });

  securityOnLoad();
}

//******** Generic Build-a-tab
// Assumes the views are empty. Only called once to build the tabs, and
// does so by farming the task off to another thread via setTimeout().
// The actual work is done with a TreeWalker that calls doGrab() once for
// each element node in the document.

var gFrameList = [ ];

function makeTabs(aDocument, aWindow)
{
  goThroughFrames(aDocument, aWindow);
  processFrames();
}

function goThroughFrames(aDocument, aWindow)
{
  gFrameList.push(aDocument);
  if (aWindow && aWindow.frames.length > 0) {
    var num = aWindow.frames.length;
    for (var i = 0; i < num; i++)
      goThroughFrames(aWindow.frames[i].document, aWindow.frames[i]);  // recurse through the frames
  }
}

function processFrames()
{
  if (gFrameList.length) {
    var doc = gFrameList[0];
    onProcessFrame.forEach(function(func) { func(doc); });
    var iterator = doc.createTreeWalker(doc, NodeFilter.SHOW_ELEMENT, grabAll);
    gFrameList.shift();
    setTimeout(doGrab, 10, iterator);
    onFinished.push(selectImage);
  }
  else
    onFinished.forEach(function(func) { func(); });
}

function doGrab(iterator)
{
  for (var i = 0; i < 500; ++i)
    if (!iterator.nextNode()) {
      processFrames();
      return;
    }

  setTimeout(doGrab, 10, iterator);
}

function addImage(url, type, alt, elem, isBg)
{
  if (!url)
    return;

  if (!gImageHash.hasOwnProperty(url))
    gImageHash[url] = { };
  if (!gImageHash[url].hasOwnProperty(type))
    gImageHash[url][type] = { };
  if (!gImageHash[url][type].hasOwnProperty(alt)) {
    gImageHash[url][type][alt] = gImageView.data.length;
    var row = [url, type, -1, alt, 1, elem, isBg];
    gImageView.addRow(row);

    // Fill in cache data asynchronously
    openCacheEntry(url, function(cacheEntry) {
      // The data at row[2] corresponds to the data size.
      if (cacheEntry) {
        row[2] = cacheEntry.dataSize;
        // Invalidate the row to trigger a repaint.
        gImageView.tree.invalidateRow(gImageView.data.indexOf(row));
      }
    });

    // Add the observer, only once.
    if (gImageView.data.length == 1) {
      document.getElementById("mediaTab").hidden = false;
      Components.classes["@mozilla.org/observer-service;1"]
                .getService(Components.interfaces.nsIObserverService)
                .addObserver(imagePermissionObserver, "perm-changed", false);
    }
  }
  else {
    var i = gImageHash[url][type][alt];
    gImageView.data[i][COL_IMAGE_COUNT]++;
    if (elem == gImageElement)
      gImageView.data[i][COL_IMAGE_NODE] = elem;
  }
}

function grabAll(elem)
{
  // check for images defined in CSS (e.g. background, borders), any node may have multiple
  var computedStyle = elem.ownerDocument.defaultView.getComputedStyle(elem, "");

  if (computedStyle) {
    var addImgFunc = function (label, val) {
      if (val.primitiveType == CSSPrimitiveValue.CSS_URI) {
        addImage(val.getStringValue(), label, gStrings.notSet, elem, true);
      }
      else if (val.primitiveType == CSSPrimitiveValue.CSS_STRING) {
        // This is for -moz-image-rect.
        // TODO: Reimplement once bug 714757 is fixed
        var strVal = val.getStringValue();
        if (strVal.search(/^.*url\(\"?/) > -1) {
          url = strVal.replace(/^.*url\(\"?/,"").replace(/\"?\).*$/,"");
          addImage(url, label, gStrings.notSet, elem, true);
        }
      }
      else if (val.cssValueType == CSSValue.CSS_VALUE_LIST) {
        // recursively resolve multiple nested CSS value lists
        for (var i = 0; i < val.length; i++)
          addImgFunc(label, val.item(i));
      }
    };

    addImgFunc(gStrings.mediaBGImg, computedStyle.getPropertyCSSValue("background-image"));
    addImgFunc(gStrings.mediaBorderImg, computedStyle.getPropertyCSSValue("border-image-source"));
    addImgFunc(gStrings.mediaListImg, computedStyle.getPropertyCSSValue("list-style-image"));
    addImgFunc(gStrings.mediaCursor, computedStyle.getPropertyCSSValue("cursor"));
  }

  // one swi^H^H^Hif-else to rule them all
  if (elem instanceof HTMLImageElement)
    addImage(elem.src, gStrings.mediaImg,
             (elem.hasAttribute("alt")) ? elem.alt : gStrings.notSet, elem, false);
  else if (elem instanceof SVGImageElement) {
    try {
      // Note: makeURLAbsolute will throw if either the baseURI is not a valid URI
      //       or the URI formed from the baseURI and the URL is not a valid URI
      var href = makeURLAbsolute(elem.baseURI, elem.href.baseVal);
      addImage(href, gStrings.mediaImg, "", elem, false);
    } catch (e) { }
  }
  else if (elem instanceof HTMLVideoElement) {
    addImage(elem.currentSrc, gStrings.mediaVideo, "", elem, false);
  }
  else if (elem instanceof HTMLAudioElement) {
    addImage(elem.currentSrc, gStrings.mediaAudio, "", elem, false);
  }
  else if (elem instanceof HTMLLinkElement) {
    if (elem.rel && /\bicon\b/i.test(elem.rel))
      addImage(elem.href, gStrings.mediaLink, "", elem, false);
  }
  else if (elem instanceof HTMLInputElement || elem instanceof HTMLButtonElement) {
    if (elem.type.toLowerCase() == "image")
      addImage(elem.src, gStrings.mediaInput,
               (elem.hasAttribute("alt")) ? elem.alt : gStrings.notSet, elem, false);
  }
  else if (elem instanceof HTMLObjectElement)
    addImage(elem.data, gStrings.mediaObject, getValueText(elem), elem, false);
  else if (elem instanceof HTMLEmbedElement)
    addImage(elem.src, gStrings.mediaEmbed, "", elem, false);

  onProcessElement.forEach(function(func) { func(elem); });

  return NodeFilter.FILTER_ACCEPT;
}

//******** Link Stuff
function openURL(target)
{
  var url = target.parentNode.childNodes[2].value;
  window.open(url, "_blank", "chrome");
}

function onBeginLinkDrag(event,urlField,descField)
{
  if (event.originalTarget.localName != "treechildren")
    return;

  var tree = event.target;
  if (!("treeBoxObject" in tree))
    tree = tree.parentNode;

  var row = tree.treeBoxObject.getRowAt(event.clientX, event.clientY);
  if (row == -1)
    return;

  // Adding URL flavor
  var col = tree.columns[urlField];
  var url = tree.view.getCellText(row, col);
  col = tree.columns[descField];
  var desc = tree.view.getCellText(row, col);

  var dt = event.dataTransfer;
  dt.setData("text/x-moz-url", url + "\n" + desc);
  dt.setData("text/url-list", url);
  dt.setData("text/plain", url);
}

//******** Image Stuff
function getSelectedRows(tree)
{
  var start = { };
  var end   = { };
  var numRanges = tree.view.selection.getRangeCount();

  var rowArray = [ ];
  for (var t = 0; t < numRanges; t++) {
    tree.view.selection.getRangeAt(t, start, end);
    for (var v = start.value; v <= end.value; v++)
      rowArray.push(v);
  }

  return rowArray;
}

function getSelectedRow(tree)
{
  var rows = getSelectedRows(tree);
  return (rows.length == 1) ? rows[0] : -1;
}

function selectSaveFolder(aCallback)
{
  const nsILocalFile = Components.interfaces.nsILocalFile;
  const nsIFilePicker = Components.interfaces.nsIFilePicker;
  let titleText = gBundle.getString("mediaSelectFolder");
  let fp = Components.classes["@mozilla.org/filepicker;1"].
           createInstance(nsIFilePicker);
  let fpCallback = function fpCallback_done(aResult) {
    if (aResult == nsIFilePicker.returnOK) {
      aCallback(fp.file.QueryInterface(nsILocalFile));
    } else {
      aCallback(null);
    }
  };

  fp.init(window, titleText, nsIFilePicker.modeGetFolder);
  fp.appendFilters(nsIFilePicker.filterAll);
  try {
    let prefs = Components.classes[PREFERENCES_CONTRACTID].
                getService(Components.interfaces.nsIPrefBranch);
    let initialDir = prefs.getComplexValue("browser.download.dir", nsILocalFile);
    if (initialDir) {
      fp.displayDirectory = initialDir;
    }
  } catch (ex) {
  }
  fp.open(fpCallback);
}

function saveMedia()
{
  var tree = document.getElementById("imagetree");
  var rowArray = getSelectedRows(tree);
  if (rowArray.length == 1) {
    var row = rowArray[0];
    var item = gImageView.data[row][COL_IMAGE_NODE];
    var url = gImageView.data[row][COL_IMAGE_ADDRESS];

    if (url) {
      var titleKey = "SaveImageTitle";

      if (item instanceof HTMLVideoElement)
        titleKey = "SaveVideoTitle";
      else if (item instanceof HTMLAudioElement)
        titleKey = "SaveAudioTitle";

      saveURL(url, null, titleKey, false, false, makeURI(item.baseURI), gDocument);
    }
  } else {
    selectSaveFolder(function(aDirectory) {
      if (aDirectory) {
        var saveAnImage = function(aURIString, aChosenData, aBaseURI) {
          internalSave(aURIString, null, null, null, null, false, "SaveImageTitle",
                       aChosenData, aBaseURI, gDocument);
        };

        for (var i = 0; i < rowArray.length; i++) {
          var v = rowArray[i];
          var dir = aDirectory.clone();
          var item = gImageView.data[v][COL_IMAGE_NODE];
          var uriString = gImageView.data[v][COL_IMAGE_ADDRESS];
          var uri = makeURI(uriString);

          try {
            uri.QueryInterface(Components.interfaces.nsIURL);
            dir.append(decodeURIComponent(uri.fileName));
          } catch(ex) {
            /* data: uris */
          }

          if (i == 0) {
            saveAnImage(uriString, new AutoChosen(dir, uri), makeURI(item.baseURI));
          } else {
            // This delay is a hack which prevents the download manager
            // from opening many times. See bug 377339.
            setTimeout(saveAnImage, 200, uriString, new AutoChosen(dir, uri),
                       makeURI(item.baseURI));
          }
        }
      }
    });
  }
}

function onBlockImage()
{
  var permissionManager = Components.classes[PERMISSION_CONTRACTID]
                                    .getService(nsIPermissionManager);

  var checkbox = document.getElementById("blockImage");
  var uri = makeURI(document.getElementById("imageurltext").value);
  if (checkbox.checked)
    permissionManager.add(uri, "image", nsIPermissionManager.DENY_ACTION);
  else
    permissionManager.remove(uri, "image");
}

function onImageSelect()
{
  var previewBox   = document.getElementById("mediaPreviewBox");
  var mediaSaveBox = document.getElementById("mediaSaveBox");
  var splitter     = document.getElementById("mediaSplitter");
  var tree = document.getElementById("imagetree");
  var count = tree.view.selection.count;
  if (count == 0) {
    previewBox.collapsed   = true;
    mediaSaveBox.collapsed = true;
    splitter.collapsed     = true;
    tree.flex = 1;
  }
  else if (count > 1) {
    splitter.collapsed     = true;
    previewBox.collapsed   = true;
    mediaSaveBox.collapsed = false;
    tree.flex = 1;
  }
  else {
    mediaSaveBox.collapsed = true;
    splitter.collapsed     = false;
    previewBox.collapsed   = false;
    tree.flex = 0;
    makePreview(getSelectedRows(tree)[0]);
  }
}

function makePreview(row)
{
  var imageTree = document.getElementById("imagetree");
  var item = gImageView.data[row][COL_IMAGE_NODE];
  var url = gImageView.data[row][COL_IMAGE_ADDRESS];
  var isBG = gImageView.data[row][COL_IMAGE_BG];
  var isAudio = false;

  setItemValue("imageurltext", url);

  var imageText;
  if (!isBG &&
      !(item instanceof SVGImageElement) &&
      !(gDocument instanceof ImageDocument)) {
    imageText = item.title || item.alt;

    if (!imageText && !(item instanceof HTMLImageElement))
      imageText = getValueText(item);
  }
  setItemValue("imagetext", imageText);

  setItemValue("imagelongdesctext", item.longDesc);

  // get cache info
  var cacheKey = url.replace(/#.*$/, "");
  openCacheEntry(cacheKey, function(cacheEntry) {
    // find out the file size
    var sizeText;
    if (cacheEntry) {
      var imageSize = cacheEntry.dataSize;
      var kbSize = Math.round(imageSize / 1024 * 100) / 100;
      sizeText = gBundle.getFormattedString("generalSize",
                                            [formatNumber(kbSize), formatNumber(imageSize)]);
    }
    else
      sizeText = gBundle.getString("mediaUnknownNotCached");
    setItemValue("imagesizetext", sizeText);

    var mimeType;
    var numFrames = 1;
    if (item instanceof HTMLObjectElement ||
        item instanceof HTMLEmbedElement ||
        item instanceof HTMLLinkElement)
      mimeType = item.type;

    if (!mimeType && !isBG && item instanceof nsIImageLoadingContent) {
      var imageRequest = item.getRequest(nsIImageLoadingContent.CURRENT_REQUEST);
      if (imageRequest) {
        mimeType = imageRequest.mimeType;
        var image = imageRequest.image;
        if (image)
          numFrames = image.numFrames;
      }
    }

    if (!mimeType)
      mimeType = getContentTypeFromHeaders(cacheEntry);

    // if we have a data url, get the MIME type from the url
    if (!mimeType && url.startsWith("data:")) {
      let dataMimeType = /^data:(image\/[^;,]+)/i.exec(url);
      if (dataMimeType)
        mimeType = dataMimeType[1].toLowerCase();
    }

    var imageType;
    if (mimeType) {
      // We found the type, try to display it nicely
      let imageMimeType = /^image\/(.*)/i.exec(mimeType);
      if (imageMimeType) {
        imageType = imageMimeType[1].toUpperCase();
        if (numFrames > 1)
          imageType = gBundle.getFormattedString("mediaAnimatedImageType",
                                                 [imageType, numFrames]);
        else
          imageType = gBundle.getFormattedString("mediaImageType", [imageType]);
      }
      else {
        // the MIME type doesn't begin with image/, display the raw type
        imageType = mimeType;
      }
    }
    else {
      // We couldn't find the type, fall back to the value in the treeview
      imageType = gImageView.data[row][COL_IMAGE_TYPE];
    }
    setItemValue("imagetypetext", imageType);

    var imageContainer = document.getElementById("theimagecontainer");
    var oldImage = document.getElementById("thepreviewimage");

    var isProtocolAllowed = checkProtocol(gImageView.data[row]);

    var newImage = new Image;
    newImage.id = "thepreviewimage";
    var physWidth = 0, physHeight = 0;
    var width = 0, height = 0;

    if ((item instanceof HTMLLinkElement || item instanceof HTMLInputElement ||
         item instanceof HTMLImageElement ||
         item instanceof SVGImageElement ||
         (item instanceof HTMLObjectElement && mimeType && mimeType.startsWith("image/")) || isBG) && isProtocolAllowed) {
      newImage.setAttribute("src", url);
      physWidth = newImage.width || 0;
      physHeight = newImage.height || 0;

      // "width" and "height" attributes must be set to newImage,
      // even if there is no "width" or "height attribute in item;
      // otherwise, the preview image cannot be displayed correctly.
      if (!isBG) {
        newImage.width = ("width" in item && item.width) || newImage.naturalWidth;
        newImage.height = ("height" in item && item.height) || newImage.naturalHeight;
      }
      else {
        // the Width and Height of an HTML tag should not be used for its background image
        // (for example, "table" can have "width" or "height" attributes)
        newImage.width = newImage.naturalWidth;
        newImage.height = newImage.naturalHeight;
      }

      if (item instanceof SVGImageElement) {
        newImage.width = item.width.baseVal.value;
        newImage.height = item.height.baseVal.value;
      }

      width = newImage.width;
      height = newImage.height;

      document.getElementById("theimagecontainer").collapsed = false
      document.getElementById("brokenimagecontainer").collapsed = true;
    }
    else if (item instanceof HTMLVideoElement && isProtocolAllowed) {
      newImage = document.createElementNS("http://www.w3.org/1999/xhtml", "video");
      newImage.id = "thepreviewimage";
      newImage.src = url;
      newImage.controls = true;
      width = physWidth = item.videoWidth;
      height = physHeight = item.videoHeight;

      document.getElementById("theimagecontainer").collapsed = false;
      document.getElementById("brokenimagecontainer").collapsed = true;
    }
    else if (item instanceof HTMLAudioElement && isProtocolAllowed) {
      newImage = new Audio;
      newImage.id = "thepreviewimage";
      newImage.src = url;
      newImage.controls = true;
      isAudio = true;

      document.getElementById("theimagecontainer").collapsed = false;
      document.getElementById("brokenimagecontainer").collapsed = true;
    }
    else {
      // fallback image for protocols not allowed (e.g., javascript:)
      // or elements not [yet] handled (e.g., object, embed).
      document.getElementById("brokenimagecontainer").collapsed = false;
      document.getElementById("theimagecontainer").collapsed = true;
    }

    var imageSize = "";
    if (url && !isAudio) {
      if (width != physWidth || height != physHeight) {
        imageSize = gBundle.getFormattedString("mediaDimensionsScaled",
                                               [formatNumber(physWidth),
                                                formatNumber(physHeight),
                                                formatNumber(width),
                                                formatNumber(height)]);
      }
      else {
        imageSize = gBundle.getFormattedString("mediaDimensions",
                                               [formatNumber(width),
                                                formatNumber(height)]);
      }
    }
    setItemValue("imagedimensiontext", imageSize);

    makeBlockImage(url);

    imageContainer.removeChild(oldImage);
    imageContainer.appendChild(newImage);

    onImagePreviewShown.forEach(function(func) { func(); });
  });
}

function makeBlockImage(url)
{
  var permissionManager = Components.classes[PERMISSION_CONTRACTID]
                                    .getService(nsIPermissionManager);
  var prefs = Components.classes[PREFERENCES_CONTRACTID]
                        .getService(Components.interfaces.nsIPrefBranch);

  var checkbox = document.getElementById("blockImage");
  var imagePref = prefs.getIntPref("permissions.default.image");
  if (!(/^https?:/.test(url)) || imagePref == 2)
    // We can't block the images from this host because either is is not
    // for http(s) or we don't load images at all
    checkbox.hidden = true;
  else {
    var uri = makeURI(url);
    if (uri.host) {
      checkbox.hidden = false;
      checkbox.label = gBundle.getFormattedString("mediaBlockImage", [uri.host]);
      var perm = permissionManager.testPermission(uri, "image");
      checkbox.checked = perm == nsIPermissionManager.DENY_ACTION;
    }
    else
      checkbox.hidden = true;
  }
}

var imagePermissionObserver = {
  observe: function (aSubject, aTopic, aData)
  {
    if (document.getElementById("mediaPreviewBox").collapsed)
      return;

    if (aTopic == "perm-changed") {
      var permission = aSubject.QueryInterface(Components.interfaces.nsIPermission);
      if (permission.type == "image") {
        var imageTree = document.getElementById("imagetree");
        var row = getSelectedRow(imageTree);
        var item = gImageView.data[row][COL_IMAGE_NODE];
        var url = gImageView.data[row][COL_IMAGE_ADDRESS];
        if (makeURI(url).host == permission.host)
          makeBlockImage(url);
      }
    }
  }
}

function getContentTypeFromHeaders(cacheEntryDescriptor)
{
  if (!cacheEntryDescriptor)
    return null;

  return (/^Content-Type:\s*(.*?)\s*(?:\;|$)/mi
          .exec(cacheEntryDescriptor.getMetaDataElement("response-head")))[1];
}

//******** Other Misc Stuff
// Modified from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// parse a node to extract the contents of the node
function getValueText(node)
{
  var valueText = "";

  // form input elements don't generally contain information that is useful to our callers, so return nothing
  if (node instanceof HTMLInputElement ||
      node instanceof HTMLSelectElement ||
      node instanceof HTMLTextAreaElement)
    return valueText;

  // otherwise recurse for each child
  var length = node.childNodes.length;
  for (var i = 0; i < length; i++) {
    var childNode = node.childNodes[i];
    var nodeType = childNode.nodeType;

    // text nodes are where the goods are
    if (nodeType == Node.TEXT_NODE)
      valueText += " " + childNode.nodeValue;
    // and elements can have more text inside them
    else if (nodeType == Node.ELEMENT_NODE) {
      // images are special, we want to capture the alt text as if the image weren't there
      if (childNode instanceof HTMLImageElement)
        valueText += " " + getAltText(childNode);
      else
        valueText += " " + getValueText(childNode);
    }
  }

  return stripWS(valueText);
}

// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// traverse the tree in search of an img or area element and grab its alt tag
function getAltText(node)
{
  var altText = "";

  if (node.alt)
    return node.alt;
  var length = node.childNodes.length;
  for (var i = 0; i < length; i++)
    if ((altText = getAltText(node.childNodes[i]) != undefined))  // stupid js warning...
      return altText;
  return "";
}

// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// strip leading and trailing whitespace, and replace multiple consecutive whitespace characters with a single space
function stripWS(text)
{
  var middleRE = /\s+/g;
  var endRE = /(^\s+)|(\s+$)/g;

  text = text.replace(middleRE, " ");
  return text.replace(endRE, "");
}

function setItemValue(id, value)
{
  var item = document.getElementById(id);
  if (value) {
    item.parentNode.collapsed = false;
    item.value = value;
  }
  else
    item.parentNode.collapsed = true;
}

function formatNumber(number)
{
  return (+number).toLocaleString();  // coerce number to a numeric value before calling toLocaleString()
}

function formatDate(datestr, unknown)
{
  // scriptable date formatter, for pretty printing dates
  var dateService = Components.classes["@mozilla.org/intl/scriptabledateformat;1"]
                              .getService(Components.interfaces.nsIScriptableDateFormat);

  var date = new Date(datestr);
  if (!date.valueOf())
    return unknown;

  return dateService.FormatDateTime("", dateService.dateFormatLong,
                                    dateService.timeFormatSeconds,
                                    date.getFullYear(), date.getMonth()+1, date.getDate(),
                                    date.getHours(), date.getMinutes(), date.getSeconds());
}

function doCopy()
{
  if (!gClipboardHelper)
    return;

  var elem = document.commandDispatcher.focusedElement;

  if (elem && "treeBoxObject" in elem) {
    var view = elem.view;
    var selection = view.selection;
    var text = [], tmp = '';
    var min = {}, max = {};

    var count = selection.getRangeCount();

    for (var i = 0; i < count; i++) {
      selection.getRangeAt(i, min, max);

      for (var row = min.value; row <= max.value; row++) {
        view.performActionOnRow("copy", row);

        tmp = elem.getAttribute("copybuffer");
        if (tmp)
          text.push(tmp);
        elem.removeAttribute("copybuffer");
      }
    }
    gClipboardHelper.copyString(text.join("\n"), document);
  }
}

function doSelectAll()
{
  var elem = document.commandDispatcher.focusedElement;

  if (elem && "treeBoxObject" in elem)
    elem.view.selection.selectAll();
}

function selectImage()
{
  if (!gImageElement)
    return;

  var tree = document.getElementById("imagetree");
  for (var i = 0; i < tree.view.rowCount; i++) {
    if (gImageElement == gImageView.data[i][COL_IMAGE_NODE] &&
        !gImageView.data[i][COL_IMAGE_BG]) {
      tree.view.selection.select(i);
      tree.treeBoxObject.ensureRowIsVisible(i);
      tree.focus();
      return;
    }
  }
}

function checkProtocol(img)
{
  var url = img[COL_IMAGE_ADDRESS];
  return /^data:image\//i.test(url) ||
    /^(https?|ftp|file|about|chrome|resource):/.test(url);
}