modules/documentCanvas/canvas/canvas.js

   1 define([
   2 'libs/jquery-1.9.1.min',
   3 'libs/underscore-min',
   4 'modules/documentCanvas/canvas/documentElement'
   5 ], function($, _, documentElement) {
   6
   7 'use strict';
   8
   9 var Canvas = function(wlxml) {
  10     this.loadWlxml(wlxml);
  11 };
  12
  13 $.extend(Canvas.prototype, {
  14
  15     loadWlxml: function(wlxml) {
  16         var d = wlxml ? $($.trim(wlxml)) : null;
  17         if(d) {
  18             var wrapper = $('<div>');
  19             wrapper.append(d);
  20
  21             wrapper.find('*').replaceWith(function() {
  22                 var currentTag = $(this);
  23                 if(currentTag.attr('wlxml-tag'))
  24                     return;
  25                 var toret = $('<div>').attr('wlxml-tag', currentTag.prop('tagName').toLowerCase());
  26                 //toret.attr('id', 'xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);}));
  27                 for(var i = 0; i < this.attributes.length; i++) {
  28                     var attr = this.attributes.item(i);
  29                     var value = attr.name === 'class' ? attr.value.replace(/\./g, '-') : attr.value;
  30                     toret.attr('wlxml-' + attr.name, value);
  31                 }
  32                 toret.append(currentTag.contents());
  33                 return toret;
  34             });
  35
  36             wrapper.find(':not(iframe)').addBack().contents()
  37                 .filter(function() {return this.nodeType === Node.TEXT_NODE})
  38                 .each(function() {
  39
  40                     var el = $(this);
  41
  42                     // TODO: use DocumentElement API
  43                     var spanParent = el.parent().attr('wlxml-tag') === 'span',
  44                         spanBefore = el.prev().length > 0  && $(el.prev()[0]).attr('wlxml-tag') === 'span',
  45                         spanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
  46
  47                     if(spanParent || spanBefore || spanAfter) {
  48                         var startSpace = /\s/g.test(this.data.substr(0,1));
  49                         var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
  50                         var trimmed = $.trim(this.data);
  51                         this.data = (startSpace && (spanParent || spanBefore) ? ' ' : '')
  52                                     + trimmed
  53                                     + (endSpace && (spanParent || spanAfter) ? ' ' : '');
  54
  55                     } else {
  56                         var oldLength = this.data.length;
  57                         this.data = $.trim(this.data);
  58                         if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
  59                             this.data = ' ';
  60                         if(this.data.length === 0)
  61                             $(this).remove();
  62                     }
  63                 });
  64
  65             this.d = wrapper.children(0);
  66             this.d.unwrap();
  67         } else {
  68             this.d = null;
  69         }
  70     },
  71
  72     doc: function() {
  73         if(this.d === null)
  74             return null;
  75         return documentElement.wrap(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
  76     },
  77
  78     wrapText: function(params) {
  79         params = _.extend({textNodeIdx: 0}, params);
  80         if(typeof params.textNodeIdx === 'number')
  81             params.textNodeIdx = [params.textNodeIdx];
  82
  83         var childrenInside = params.inside.children(),
  84             idx1 = Math.min.apply(Math, params.textNodeIdx),
  85             idx2 = Math.max.apply(Math, params.textNodeIdx),
  86             textNode1 = childrenInside[idx1],
  87             textNode2 = childrenInside[idx2],
  88             sameNode = textNode1.sameNode(textNode2),
  89             prefixOutside = textNode1.getText().substr(0, params.offsetStart),
  90             prefixInside = textNode1.getText().substr(params.offsetStart),
  91             suffixInside = textNode2.getText().substr(0, params.offsetEnd),
  92             suffixOutside = textNode2.getText().substr(params.offsetEnd)
  93         ;
  94
  95         var wrapperElement = documentElement.DocumentNodeElement.create({tag: params._with.tag, klass: params._with.klass});
  96         textNode1.after(wrapperElement);
  97         textNode1.detach();
  98
  99         if(prefixOutside.length > 0)
 100             wrapperElement.before({text:prefixOutside});
 101         if(sameNode) {
 102             var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
 103             wrapperElement.append({text: core});
 104         } else {
 105             textNode2.detach();
 106             if(prefixInside.length > 0)
 107                 wrapperElement.append({text: prefixInside});
 108             for(var i = idx1 + 1; i < idx2; i++) {
 109                 wrapperElement.append(childrenInside[i]);
 110             }
 111             if(suffixInside.length > 0)
 112                 wrapperElement.append({text: suffixInside});
 113         }
 114         if(suffixOutside.length > 0)
 115             wrapperElement.after({text: suffixOutside});
 116         return wrapperElement;
 117     },
 118     list: {}
 119 });
 120
 121 $.extend(Canvas.prototype.list, {
 122     create: function(params) {
 123         if(!(params.element1.parent().sameNode(params.element2.parent())))
 124             return false;
 125
 126         var parent = params.element1.parent();
 127
 128         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
 129             var tmp = params.element1;
 130             params.element1 = params.element2;
 131             params.element2 = tmp;
 132         }
 133
 134         var elementsToWrap = [];
 135
 136         var place = 'before';
 137         var canvas = this;
 138         parent.children().some(function(element) {
 139             var _e = element;
 140             if(element.sameNode(params.element1))
 141                 place = 'inside';
 142             if(place === 'inside') {
 143                 if(element instanceof documentElement.DocumentTextElement) {
 144                     element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'});
 145                     if(element.children()[0].sameNode(params.element1))
 146                         params.element1 = element;
 147                 }
 148                 element.setWlxmlClass('item');
 149                 elementsToWrap.push(element);
 150             }
 151             if(_e.sameNode(params.element2))
 152                 return true;
 153         });
 154
 155         var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
 156
 157         var toret;
 158         if(parent.is('list')) {
 159             listElement.wrap({tag: 'div', klass: 'item'});
 160             toret = listElement.parent();
 161         } else {
 162             toret = listElement;
 163         }
 164
 165         params.element1.before(toret);
 166
 167         elementsToWrap.forEach(function(element) {
 168             element.detach();
 169             listElement.append(element);
 170         });
 171     },
 172     extractItems: function(params) {
 173         var list = params.element1.parent();
 174         if(!list.is('list') || !(list.sameNode(params.element2.parent())))
 175             return false;
 176
 177         var idx1 = list.childIndex(params.element1),
 178             idx2 = list.childIndex(params.element2),
 179             precedingItems = [],
 180             extractedItems = [],
 181             succeedingItems = [],
 182             items = list.children(),
 183             listIsNested = list.parent().getWlxmlClass() === 'item',
 184             i;
 185
 186         if(idx1 > idx2) {
 187             var tmp = idx1; idx1 = idx2; idx2 = tmp;
 188         }
 189
 190         items.forEach(function(item, idx) {
 191             if(idx < idx1)
 192                 precedingItems.push(item);
 193             else if(idx >= idx1 && idx <= idx2) {
 194                 extractedItems.push(item);
 195             }
 196             else {
 197                 succeedingItems.push(item);
 198             }
 199         });
 200
 201         var reference = listIsNested ? list.parent() : list;
 202         if(succeedingItems.length === 0) {
 203             var reference_orig = reference;
 204             extractedItems.forEach(function(item) {
 205                 reference.after(item);
 206                 reference = item;
 207                 if(!listIsNested)
 208                     item.setWlxmlClass(null);
 209             });
 210             if(precedingItems.length === 0)
 211                 reference_orig.detach();
 212         } else if(precedingItems.length === 0) {
 213             extractedItems.forEach(function(item) {
 214                 reference.before(item);
 215                 if(!listIsNested)
 216                     item.setWlxmlClass(null);
 217             });
 218         } else {
 219             extractedItems.forEach(function(item) {
 220                 reference.after(item);
 221                 if(!listIsNested)
 222                     item.setWlxmlClass(null);
 223                 reference = item;
 224             });
 225             var secondList = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this),
 226                 toAdd = secondList;
 227
 228             if(listIsNested) {
 229                 toAdd = secondList.wrapWithNodeElement({tag: 'div', klass:'item'});
 230             }
 231             succeedingItems.forEach(function(item) {
 232                 secondList.append(item);
 233             });
 234
 235             reference.after(toAdd);
 236         }
 237     }
 238 });
 239
 240 return {
 241     fromXML: function(xml) {
 242         return new Canvas(xml);
 243     }
 244 };
 245
 246 });