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     getDocumentElement: function(from) {
 119         if(from instanceof HTMLElement || from instanceof Text) {
 120            return documentElement.wrap(from, this);
 121         }
 122     },
 123     list: {}
 124 });
 125
 126 $.extend(Canvas.prototype.list, {
 127     create: function(params) {
 128         if(!(params.element1.parent().sameNode(params.element2.parent())))
 129             return false;
 130
 131         var parent = params.element1.parent();
 132
 133         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
 134             var tmp = params.element1;
 135             params.element1 = params.element2;
 136             params.element2 = tmp;
 137         }
 138
 139         var elementsToWrap = [];
 140
 141         var place = 'before';
 142         var canvas = this;
 143         parent.children().some(function(element) {
 144             var _e = element;
 145             if(element.sameNode(params.element1))
 146                 place = 'inside';
 147             if(place === 'inside') {
 148                 if(element instanceof documentElement.DocumentTextElement) {
 149                     element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'});
 150                     if(element.children()[0].sameNode(params.element1))
 151                         params.element1 = element;
 152                 }
 153                 element.setWlxmlClass('item');
 154                 elementsToWrap.push(element);
 155             }
 156             if(_e.sameNode(params.element2))
 157                 return true;
 158         });
 159
 160         var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
 161
 162         var toret;
 163         if(parent.is('list')) {
 164             listElement.wrapWithNodeElement({tag: 'div', klass: 'item'});
 165             toret = listElement.parent();
 166         } else {
 167             toret = listElement;
 168         }
 169
 170         params.element1.before(toret);
 171
 172         elementsToWrap.forEach(function(element) {
 173             element.detach();
 174             listElement.append(element);
 175         });
 176     },
 177     extractItems: function(params) {
 178         params = _.extend({merge: true}, params);
 179         var list = params.element1.parent();
 180         if(!list.is('list') || !(list.sameNode(params.element2.parent())))
 181             return false;
 182
 183         var idx1 = list.childIndex(params.element1),
 184             idx2 = list.childIndex(params.element2),
 185             precedingItems = [],
 186             extractedItems = [],
 187             succeedingItems = [],
 188             items = list.children(),
 189             listIsNested = list.parent().getWlxmlClass() === 'item',
 190             i;
 191
 192         if(idx1 > idx2) {
 193             var tmp = idx1; idx1 = idx2; idx2 = tmp;
 194         }
 195
 196         items.forEach(function(item, idx) {
 197             if(idx < idx1)
 198                 precedingItems.push(item);
 199             else if(idx >= idx1 && idx <= idx2) {
 200                 extractedItems.push(item);
 201             }
 202             else {
 203                 succeedingItems.push(item);
 204             }
 205         });
 206
 207         var reference = listIsNested ? list.parent() : list;
 208         if(succeedingItems.length === 0) {
 209             var reference_orig = reference;
 210             extractedItems.forEach(function(item) {
 211                 reference.after(item);
 212                 reference = item;
 213                 if(!listIsNested)
 214                     item.setWlxmlClass(null);
 215             });
 216             if(precedingItems.length === 0)
 217                 reference_orig.detach();
 218         } else if(precedingItems.length === 0) {
 219             extractedItems.forEach(function(item) {
 220                 reference.before(item);
 221                 if(!listIsNested)
 222                     item.setWlxmlClass(null);
 223             });
 224         } else {
 225             extractedItems.forEach(function(item) {
 226                 reference.after(item);
 227                 if(!listIsNested)
 228                     item.setWlxmlClass(null);
 229                 reference = item;
 230             });
 231             var secondList = documentElement.DocumentNodeElement.create({tag: 'div', klass:'list-items'}, this),
 232                 toAdd = secondList;
 233
 234             if(listIsNested) {
 235                 toAdd = secondList.wrapWithNodeElement({tag: 'div', klass:'item'});
 236             }
 237             succeedingItems.forEach(function(item) {
 238                 secondList.append(item);
 239             });
 240
 241             reference.after(toAdd);
 242         }
 243         if(!params.merge && listIsNested) {
 244             return this.extractItems({element1: extractedItems[0], element2: extractedItems[extractedItems.length-1]});
 245         }
 246         return true;
 247     },
 248     areItemsOfTheSameList: function(params) {
 249         var e1 = params.element1,
 250             e2 = params.element2;
 251         return e1.parent().sameNode(e2.parent())
 252             && e1.parent().is('list');
 253     }
 254 });
 255
 256 return {
 257     fromXML: function(xml) {
 258         return new Canvas(xml);
 259     }
 260 };
 261
 262 });