redakcja/static/js/wiki/view_editor_wysiwyg.js

   1 (function($){
   2
   3     /* Show theme to the user */
   4     function selectTheme(themeId){
   5         var selection = window.getSelection();
   6         selection.removeAllRanges();
   7
   8         var range = document.createRange();
   9         var s = $(".motyw[theme-class='" + themeId + "']")[0];
  10         var e = $(".end[theme-class='" + themeId + "']")[0];
  11
  12         if (s && e) {
  13             range.setStartAfter(s);
  14             range.setEndBefore(e);
  15             selection.addRange(range);
  16         }
  17     };
  18
  19     /* Verify insertion port for annotation or theme */
  20     function verifyTagInsertPoint(node){
  21         if (node.nodeType == 3) { // Text Node
  22             node = node.parentNode;
  23         }
  24
  25         if (node.nodeType != 1) {
  26             return false;
  27         }
  28
  29         node = $(node);
  30         var xtype = node.attr('x-node');
  31
  32         if (!xtype || (xtype.search(':') >= 0) ||
  33         xtype == 'motyw' ||
  34         xtype == 'begin' ||
  35         xtype == 'end') {
  36             return false;
  37         }
  38
  39         // don't allow themes inside annotations
  40         if (node.is('*[x-annotation-box] *'))
  41             return false;
  42
  43         return true;
  44     }
  45
  46     /* Convert HTML fragment to plaintext */
  47     var ANNOT_FORBIDDEN = ['pt', 'pa', 'pr', 'pe', 'begin', 'end', 'motyw'];
  48
  49     function html2plainText(fragment){
  50         var text = "";
  51
  52         $(fragment.childNodes).each(function(){
  53             if (this.nodeType == 3) // textNode
  54                 text += this.nodeValue;
  55             else {
  56                 if (this.nodeType == 1 &&
  57                         $.inArray($(this).attr('x-node'), ANNOT_FORBIDDEN) == -1) {
  58                     text += html2plainText(this);
  59                 }
  60             };
  61         });
  62
  63         return text;
  64     }
  65
  66
  67     /* Insert annotation using current selection */
  68     function addAnnotation(){
  69         var selection = window.getSelection();
  70         var n = selection.rangeCount;
  71
  72         if (n == 0) {
  73             window.alert("Nie zaznaczono żadnego obszaru");
  74             return false;
  75         }
  76
  77         // for now allow only 1 range
  78         if (n > 1) {
  79             window.alert("Zaznacz jeden obszar");
  80             return false;
  81         }
  82
  83         // remember the selected range
  84         var range = selection.getRangeAt(0);
  85
  86         if (!verifyTagInsertPoint(range.endContainer)) {
  87             window.alert("Nie można wstawić w to miejsce przypisu.");
  88             return false;
  89         }
  90
  91         // BUG #273 - selected text can contain themes, which should be omitted from
  92         // defining term
  93         var text = html2plainText(range.cloneContents());
  94         var tag = $('<span></span>');
  95         range.collapse(false);
  96         range.insertNode(tag[0]);
  97
  98         xml2html({
  99             xml: '<pe><slowo_obce>' + text + '</slowo_obce> --- </pe>',
 100             success: function(text){
 101                 var t = $(text);
 102                 tag.replaceWith(t);
 103                 openForEdit(t);
 104             },
 105             error: function(){
 106                 tag.remove();
 107                 alert('Błąd przy dodawaniu przypisu:' + errors);
 108             }
 109         })
 110     }
 111
 112
 113     /* Insert theme using current selection */
 114
 115     function addTheme(){
 116         var selection = window.getSelection();
 117         var n = selection.rangeCount;
 118
 119         if (n == 0) {
 120             window.alert("Nie zaznaczono żadnego obszaru");
 121             return false;
 122         }
 123
 124         // for now allow only 1 range
 125         if (n > 1) {
 126             window.alert("Zaznacz jeden obszar.");
 127             return false;
 128         }
 129
 130
 131         // remember the selected range
 132         var range = selection.getRangeAt(0);
 133
 134
 135         if ($(range.startContainer).is('.html-editarea') ||
 136         $(range.endContainer).is('.html-editarea')) {
 137             window.alert("Motywy można oznaczać tylko na tekście nie otwartym do edycji. \n Zamknij edytowany fragment i spróbuj ponownie.");
 138             return false;
 139         }
 140
 141         // verify if the start/end points make even sense -
 142         // they must be inside a x-node (otherwise they will be discarded)
 143         // and the x-node must be a main text
 144         if (!verifyTagInsertPoint(range.startContainer)) {
 145             window.alert("Motyw nie może się zaczynać w tym miejscu.");
 146             return false;
 147         }
 148
 149         if (!verifyTagInsertPoint(range.endContainer)) {
 150             window.alert("Motyw nie może się kończyć w tym miejscu.");
 151             return false;
 152         }
 153
 154         var date = (new Date()).getTime();
 155         var random = Math.floor(4000000000 * Math.random());
 156         var id = ('' + date) + '-' + ('' + random);
 157
 158         var spoint = document.createRange();
 159         var epoint = document.createRange();
 160
 161         spoint.setStart(range.startContainer, range.startOffset);
 162         epoint.setStart(range.endContainer, range.endOffset);
 163
 164         var mtag, btag, etag, errors;
 165
 166         // insert theme-ref
 167
 168         xml2html({
 169             xml: '<end id="e' + id + '" />',
 170             success: function(text){
 171                 etag = $('<span></span>');
 172                 epoint.insertNode(etag[0]);
 173                 etag.replaceWith(text);
 174                 xml2html({
 175                     xml: '<motyw id="m' + id + '"></motyw>',
 176                     success: function(text){
 177                         mtag = $('<span></span>');
 178                         spoint.insertNode(mtag[0]);
 179                         mtag.replaceWith(text);
 180                         xml2html({
 181                             xml: '<begin id="b' + id + '" />',
 182                             success: function(text){
 183                                 btag = $('<span></span>');
 184                                 spoint.insertNode(btag[0])
 185                                 btag.replaceWith(text);
 186                                 selection.removeAllRanges();
 187                                 openForEdit($('.motyw[theme-class=' + id + ']'));
 188                             }
 189                         });
 190                     }
 191                 });
 192             }
 193         });
 194     }
 195
 196     function addSymbol() {
 197         if($('div.html-editarea textarea')[0]) {
 198             var specialCharsContainer = $("<div id='specialCharsContainer'><a href='#' id='specialCharsClose'>Zamknij</a><table id='tableSpecialChars' style='width: 600px;'></table></div>");
 199
 200             var specialChars = ['Ą','ą','Ć','ć','Ę','ę','Ł','ł','Ń','ń','Ó','ó','Ś','ś','Ż','ż','Ź','ź','Á','á','À','à',
 201             'Â','â','Ä','ä','Å','å','Ā','ā','Ă','ă','Ã','ã',
 202             'Æ','æ','Ç','ç','Č','č','Ċ','ċ','Ď','ď','É','é','È','è',
 203             'Ê','ê','Ë','ë','Ē','ē','Ě','ě','Ġ','ġ','Ħ','ħ','Í','í','Î','î',
 204             'Ī','ī','Ĭ','ĭ','Ľ','ľ','Ñ','ñ','Ň','ň','Ó','ó','Ö','ö',
 205             'Ô','ô','Ō','ō','Ǒ','ǒ','Œ','œ','Ø','ø','Ř','ř','Š',
 206             'š','Ş','ş','Ť','ť','Ţ','ţ','Ű','ű','Ú','ú','Ù','ù',
 207             'Ü','ü','Ů','ů','Ū','ū','Û','û','Ŭ','ŭ',
 208             'Ý','ý','Ž','ž','ß','Ð','ð','Þ','þ','А','а','Б',
 209             'б','В','в','Г','г','Д','д','Е','е','Ё','ё','Ж',
 210             'ж','З','з','И','и','Й','й','К','к','Л','л','М',
 211             'м','Н','н','О','о','П','п','Р','р','С','с',
 212             'Т','т','У','у','Ф','ф','Х','х','Ц','ц','Ч',
 213             'ч','Ш','ш','Щ','щ','Ъ','ъ','Ы','ы','Ь','ь','Э',
 214             'э','Ю','ю','Я','я','ѓ','є','і','ї','ј','љ','њ',
 215             'Ґ','ґ','Α','α','Β','β','Γ','γ','Δ','δ','Ε','ε',
 216             'Ζ','ζ','Η','η','Θ','θ','Ι','ι','Κ','κ','Λ','λ','Μ',
 217             'μ','Ν','ν','Ξ','ξ','Ο','ο','Π','π','Ρ','ρ','Σ','ς','σ',
 218             'Τ','τ','Υ','υ','Φ','φ','Χ','χ','Ψ','ψ','Ω','ω','–',
 219             '—','¡','¿','$','¢','£','€','©','®','°','¹','²','³',
 220             '¼','½','¾','†','§','‰','•','←','↑','→','↓',
 221             '„','”','„”','«','»','«»','»«','’','[',']','~','|','−','·',
 222             '×','÷','≈','≠','±','≤','≥','∈'];
 223             var tableContent = "<tr>";
 224
 225             for(var i in specialChars) {
 226                 if(i % 14 == 0 && i > 0) {
 227                     tableContent += "</tr><tr>";
 228                 }
 229                 tableContent += "<td><input type='button' class='specialBtn' value='"+specialChars[i]+"'/></td>";
 230             }
 231
 232             tableContent += "</tr>";
 233             $("#content").append(specialCharsContainer);
 234
 235
 236              // localStorage for recently used characters - reading
 237              if (typeof(localStorage) != 'undefined') {
 238                  if (localStorage.getItem("recentSymbols")) {
 239                      var recent = localStorage.getItem("recentSymbols");
 240                      var recentArray = recent.split(";");
 241                      var recentRow = "";
 242                      for(var i in recentArray.reverse()) {
 243                         recentRow += "<td><input type='button' class='specialBtn recentSymbol' value='"+recentArray[i]+"'/></td>";
 244                      }
 245                      recentRow = "<tr>" + recentRow + "</tr>";
 246                  }
 247              }
 248             $("#tableSpecialChars").append(recentRow);
 249             $("#tableSpecialChars").append(tableContent);
 250
 251             /* events */
 252
 253             $('.specialBtn').click(function(){
 254                 var editArea = $('div.html-editarea textarea')[0];
 255                 var insertVal = $(this).val();
 256
 257                 // if we want to surround text with quotes
 258                 // not sure if just check if value has length == 2
 259
 260                 if (insertVal.length == 2) {
 261                     var startTag = insertVal[0];
 262                     var endTag = insertVal[1];
 263                                 var textAreaOpened = editArea;
 264                                 //IE support
 265                                 if (document.selection) {
 266                                     textAreaOpened.focus();
 267                                     sel = document.selection.createRange();
 268                                     sel.text = startTag + sel.text + endTag;
 269                                 }
 270                                 //MOZILLA/NETSCAPE support
 271                                 else if (textAreaOpened.selectionStart || textAreaOpened.selectionStart == '0') {
 272                                     var startPos = textAreaOpened.selectionStart;
 273                                     var endPos = textAreaOpened.selectionEnd;
 274                                     textAreaOpened.value = textAreaOpened.value.substring(0, startPos)
 275                                           + startTag + textAreaOpened.value.substring(startPos, endPos) + endTag + textAreaOpened.value.substring(endPos, textAreaOpened.value.length);
 276                                 }
 277                 } else {
 278                     // if we just want to insert single symbol
 279                     insertAtCaret(editArea, insertVal);
 280                 }
 281
 282                 // localStorage for recently used characters - saving
 283                 if (typeof(localStorage) != 'undefined') {
 284                     if (localStorage.getItem("recentSymbols")) {
 285                         var recent = localStorage.getItem("recentSymbols");
 286                         var recentArray = recent.split(";");
 287                         var valIndex = $.inArray(insertVal, recentArray);
 288                         //alert(valIndex);
 289                         if(valIndex == -1) {
 290                             // value not present in array yet
 291                             if(recentArray.length > 13){
 292                                 recentArray.shift();
 293                                 recentArray.push(insertVal);
 294                             } else {
 295                                 recentArray.push(insertVal);
 296                             }
 297                         } else  {
 298                             // value already in the array
 299                             for(var i = valIndex; i < recentArray.length; i++){
 300                                 recentArray[i] = recentArray[i+1];
 301                             }
 302                             recentArray[recentArray.length-1] = insertVal;
 303                         }
 304                         localStorage.setItem("recentSymbols", recentArray.join(";"));
 305                     } else {
 306                         localStorage.setItem("recentSymbols", insertVal);
 307                     }
 308                 }
 309
 310                 $(specialCharsContainer).remove();
 311             });
 312             $('#specialCharsClose').click(function(){
 313                 $(specialCharsContainer).remove();
 314             });
 315
 316         } else {
 317             window.alert('Najedź na fragment tekstu, wybierz "Edytuj" i ustaw kursor na miejscu gdzie chcesz wstawić symbol.');
 318         }
 319     }
 320
 321     function insertAtCaret(txtarea,text) {
 322         /* http://www.scottklarr.com/topic/425/how-to-insert-text-into-a-textarea-where-the-cursor-is/ */
 323         var scrollPos = txtarea.scrollTop;
 324         var strPos = 0;
 325         var br = ((txtarea.selectionStart || txtarea.selectionStart == '0') ? "ff" : (document.selection ? "ie" : false ) );
 326         if (br == "ie") {
 327             txtarea.focus();
 328             var range = document.selection.createRange();
 329             range.moveStart ('character', -txtarea.value.length);
 330             strPos = range.text.length;
 331         } else if (br == "ff") strPos = txtarea.selectionStart;
 332         var front = (txtarea.value).substring(0,strPos);
 333         var back = (txtarea.value).substring(strPos,txtarea.value.length);
 334         txtarea.value=front+text+back;
 335         strPos = strPos + text.length;
 336         if (br == "ie") {
 337             txtarea.focus();
 338             var range = document.selection.createRange();
 339             range.moveStart ('character', -txtarea.value.length);
 340             range.moveStart ('character', strPos);
 341             range.moveEnd ('character', 0);
 342             range.select();
 343         } else if (br == "ff") {
 344             txtarea.selectionStart = strPos;
 345             txtarea.selectionEnd = strPos;
 346             txtarea.focus();
 347         }
 348         txtarea.scrollTop = scrollPos;
 349     }
 350
 351     function getXNodeAttributes(node) {
 352         var m = {}
 353         $.map(node.attributes, function(attrNode) {
 354             if (attrNode.nodeName.indexOf('data-wlf-') === 0) {
 355                 var n = attrNode.nodeName.substr(9);
 356                 var v = attrNode.nodeValue;
 357                 m[n] = v;
 358             };
 359         });
 360         return m;
 361     }
 362
 363     function setXNodeAttributes(node, attrs) {
 364         $.map(node.attributes, function(attrNode) {
 365             var xName = attrNode.nodeName.substr(9);
 366             if (attrNode.nodeName.indexOf('data-wlf-') === 0
 367                 && xName in attrs) {
 368                 attrNode.nodeValue = attrs[xName];
 369             }
 370             if (attrNode.nodeName.indexOf('x-attr-name-') === 0
 371                 && attrNode.nodeValue in attrs) {
 372                 node.setAttribute('x-attr-value-' + attrNode.nodeName.substr("x-attr-name-".length),
 373                                   attrs[attrNode.nodeValue]);
 374             }
 375         });
 376     }
 377
 378     /* open edition window for selected fragment */
 379     function openForEdit($origin){
 380         var $box = null
 381
 382         // annotations overlay their sub box - not their own box //
 383         if ($origin.is(".annotation-inline-box")) {
 384             $box = $("*[x-annotation-box]", $origin);
 385         }
 386         else {
 387             $box = $origin;
 388         }
 389         var x = $box[0].offsetLeft;
 390         var y = $box[0].offsetTop;
 391
 392         var w = $box.outerWidth();
 393         var h = $box.innerHeight();
 394
 395         if ($origin.is(".annotation-inline-box")) {
 396             w = Math.max(w, 400);
 397             h = Math.max(h, 60);
 398             if($('.htmlview div').offset().left + $('.htmlview div').width() > ($('.vsplitbar').offset().left - 480)){
 399                 x = -(Math.max($origin.offset().left, $origin.width()));
 400             } else {
 401                 x = 100;
 402             }
 403         }
 404
 405         // start edition on this node
 406         var $overlay = $('<div class="html-editarea"><button class="accept-button">Zapisz</button><button class="delete-button">Usuń</button><button class="tytul-button akap-edit-button">tytuł dzieła</button><button class="wyroznienie-button akap-edit-button">wyróżnienie</button><button class="slowo-button akap-edit-button">słowo obce</button><button class="znak-button akap-edit-button">znak spec.</button><button class="luka-button akap-edit-button">luka</button><button class="zastap-button akap-edit-button">zastąp</button><textarea></textarea></div>');
 407
 408         $attributes = $('<div class="html-editarea-attributes"></div>')
 409
 410         $.map(getXNodeAttributes($origin.get(0)),
 411               function(v, n) {
 412                 $attributes.append('<span><label for="attr-'+n+'">'+n+'</label><input type="text" name="'+n+'" id="attr-'+n+'" value="'+v+'"/></span>');
 413               });
 414         $overlay.append($attributes);
 415
 416         $overlay.css({
 417             position: 'absolute',
 418             height: h,
 419             left: x,
 420             top: y,
 421             width: w
 422         }).appendTo($box[0].offsetParent || $box.parent()).show();
 423
 424
 425         if ($origin.is('.motyw')) {
 426             $('.akap-edit-button').remove();
 427             withThemes(function(canonThemes){
 428                 $('textarea', $overlay).autocomplete(canonThemes, {
 429                     autoFill: true,
 430                     multiple: true,
 431                     selectFirst: true,
 432                     highlight: false
 433                 });
 434             })
 435         }
 436
 437         if ($origin.is('.motyw')){
 438             $('.delete-button', $overlay).click(function(){
 439                 if (window.confirm("Czy jesteś pewien, że chcesz usunąć ten motyw ?")) {
 440                     $('[theme-class=' + $origin.attr('theme-class') + ']').remove();
 441                     $overlay.remove();
 442                     $(document).unbind('click.blur-overlay');
 443                     return false;
 444                 };
 445             });
 446         }
 447         else if($box.is('*[x-annotation-box]')) {
 448             $('.delete-button', $overlay).click(function(){
 449                 if (window.confirm("Czy jesteś pewien, że chcesz usunąć ten przypis?")) {
 450                     $origin.remove();
 451                     $overlay.remove();
 452                     $(document).unbind('click.blur-overlay');
 453                     return false;
 454                 };
 455             });
 456         }
 457         else {
 458             $('.delete-button', $overlay).html("Anuluj");
 459             $('.delete-button', $overlay).click(function(){
 460                 if (window.confirm("Czy jesteś pewien, że chcesz anulować zmiany?")) {
 461                     $overlay.remove();
 462                     $(document).unbind('click.blur-overlay');
 463                     return false;
 464                 };
 465             });
 466         }
 467
 468
 469         var serializer = new XMLSerializer();
 470
 471         html2text({
 472             element: $box[0],
 473             stripOuter: true,
 474             success: function(text){
 475                 $('textarea', $overlay).val($.trim(text));
 476
 477                 setTimeout(function(){
 478                     $('textarea', $overlay).elastic().focus();
 479                 }, 50);
 480
 481                 function save(argument){
 482                     var nodeName = $box.attr('x-node') || 'pe';
 483                     var insertedText = $('textarea', $overlay).val();
 484
 485                     if ($origin.is('.motyw')) {
 486                         insertedText = insertedText.replace(/,\s*$/, '');
 487                     }
 488
 489                     xml2html({
 490                         xml: '<' + nodeName + '>' + insertedText + '</' + nodeName + '>',
 491                         success: function(element){
 492                             if (nodeName == 'out-of-flow-text') {
 493                                 $(element).children().insertAfter($origin);
 494                                 $origin.remove()
 495                             }
 496                             else {
 497                                 $origin.html($(element).html());
 498                             }
 499                             /* Set attributres back to the node */
 500                             var attrs = {};
 501                             $(".html-editarea-attributes [name]")
 502                                 .each(function(i, textField) {
 503                                     attrs[textField.name] = textField.value;
 504                                 });
 505                             setXNodeAttributes($origin.get(0), attrs);
 506
 507                             $overlay.remove();
 508                         },
 509                         error: function(text){
 510                             $overlay.remove();
 511                             alert('Błąd! ' + text);
 512                         }
 513                     })
 514
 515                     var msg = $("<div class='saveNotify'><p>Pamiętaj, żeby zapisać swoje zmiany.</p></div>");
 516                     $("#base").prepend(msg);
 517                     $('#base .saveNotify').fadeOut(3000, function(){
 518                         $(this).remove();
 519                     });
 520                 }
 521
 522                 $('.akap-edit-button', $overlay).click(function(){
 523                         var textAreaOpened = $('textarea', $overlay)[0];
 524                         var startTag = "";
 525                         var endTag = "";
 526                         var buttonName = this.innerHTML;
 527
 528                         if(buttonName == "słowo obce") {
 529                                 startTag = "<slowo_obce>";
 530                                 endTag = "</slowo_obce>";
 531                         } else if (buttonName == "wyróżnienie") {
 532                                 startTag = "<wyroznienie>";
 533                                 endTag = "</wyroznienie>";
 534                         } else if (buttonName == "tytuł dzieła") {
 535                                 startTag = "<tytul_dziela>";
 536                                 endTag = "</tytul_dziela>";
 537                         } else if(buttonName == "znak spec."){
 538                             addSymbol();
 539                             return false;
 540                         } else if (buttonName == "luka") {
 541                                 startTag = "<luka>";
 542                                 endTag = "</luka>";
 543                         } else if (buttonName == "zastąp") {
 544                                 startTag = "<zastap rozw=\"\">";
 545                                 endTag = "</zastap>";
 546                         }
 547
 548                         var myField = textAreaOpened;
 549
 550                         //IE support
 551                         if (document.selection) {
 552                             textAreaOpened.focus();
 553                             sel = document.selection.createRange();
 554                             sel.text = startTag + sel.text + endTag;
 555                         }
 556                         //MOZILLA/NETSCAPE support
 557                         else if (textAreaOpened.selectionStart || textAreaOpened.selectionStart == '0') {
 558                             var startPos = textAreaOpened.selectionStart;
 559                             var endPos = textAreaOpened.selectionEnd;
 560                             textAreaOpened.value = textAreaOpened.value.substring(0, startPos)
 561                                   + startTag + textAreaOpened.value.substring(startPos, endPos) + endTag + textAreaOpened.value.substring(endPos, textAreaOpened.value.length);
 562                         }
 563                 });
 564
 565                 $('.accept-button', $overlay).click(function(){
 566                     save();
 567                 });
 568
 569                 $(document).bind('click.blur-overlay', function(event){
 570                     if ($(event.target).parents('.html-editarea').length > 0) {
 571                         return;
 572                     }
 573                     save();
 574                     $(document).unbind('click.blur-overlay');
 575                 });
 576
 577             },
 578             error: function(text){
 579                 alert('Błąd! ' + text);
 580             }
 581         });
 582     }
 583
 584     function VisualPerspective(options){
 585
 586         var old_callback = options.callback;
 587
 588         options.callback = function(){
 589             var element = $("#html-view");
 590             var button = $('<button class="edit-button">Edytuj</button>');
 591
 592             if (!CurrentDocument.readonly) {
 593                 $('#html-view').bind('mousemove', function(event){
 594                     var editable = $(event.target).closest('*[x-editable]');
 595                     $('.active', element).not(editable).removeClass('active').children('.edit-button').remove();
 596
 597                     if (!editable.hasClass('active')) {
 598                         editable.addClass('active').append(button);
 599                     }
 600                     if (editable.is('.annotation-inline-box')) {
 601                         $('*[x-annotation-box]', editable).css({
 602                             position: 'absolute',
 603                             left: event.clientX - editable.offset().left + 5,
 604                             top: event.clientY - editable.offset().top + 5
 605                         }).show();
 606                     }
 607                     else {
 608                         $('*[x-annotation-box]').hide();
 609                     }
 610                 });
 611
 612                 $('#insert-annotation-button').click(function(){
 613                     addAnnotation();
 614                     return false;
 615                 });
 616
 617                 $('#insert-theme-button').click(function(){
 618                     addTheme();
 619                     return false;
 620                 });
 621
 622                 $('.edit-button').live('click', function(event){
 623                     event.preventDefault();
 624                     openForEdit($(this).parent());
 625                 });
 626
 627             }
 628
 629             $('.motyw').live('click', function(){
 630                 selectTheme($(this).attr('theme-class'));
 631             });
 632
 633             old_callback.call(this);
 634         };
 635
 636         $.wiki.Perspective.call(this, options);
 637     };
 638
 639     VisualPerspective.prototype = new $.wiki.Perspective();
 640
 641     VisualPerspective.prototype.freezeState = function(){
 642
 643     };
 644
 645     VisualPerspective.prototype.onEnter = function(success, failure){
 646         $.wiki.Perspective.prototype.onEnter.call(this);
 647
 648         $.blockUI({
 649             message: 'Uaktualnianie widoku...'
 650         });
 651
 652         function _finalize(callback){
 653             $.unblockUI();
 654             if (callback)
 655                 callback();
 656         }
 657
 658         xml2html({
 659             xml: this.doc.text,
 660             success: function(element){
 661                 $('#html-view').html(element);
 662                 _finalize(success);
 663             },
 664             error: function(text, source){
 665                 err = '<p class="error">Wystąpił błąd:</p><p>'+text+'</p>';
 666                 if (source)
 667                     err += '<pre>'+source.replace(/&/g, '&amp;').replace(/</g, '&lt;')+'</pre>'
 668                 $('#html-view').html(err);
 669                 _finalize(failure);
 670             }
 671         });
 672     };
 673
 674     VisualPerspective.prototype.onExit = function(success, failure){
 675         var self = this;
 676
 677         $.blockUI({
 678             message: 'Zapisywanie widoku...'
 679         });
 680
 681         function _finalize(callback){
 682             $.unblockUI();
 683             if (callback)
 684                 callback();
 685         }
 686
 687         if ($('#html-view .error').length > 0)
 688             return _finalize(failure);
 689
 690         html2text({
 691             element: $('#html-view').get(0),
 692             stripOuter: true,
 693             success: function(text){
 694                 self.doc.setText(text);
 695                 _finalize(success);
 696             },
 697             error: function(text){
 698                 $('#source-editor').html('<p>Wystąpił błąd:</p><pre>' + text + '</pre>');
 699                 _finalize(failure);
 700             }
 701         });
 702     };
 703
 704     $.wiki.VisualPerspective = VisualPerspective;
 705
 706 })(jQuery);