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)
  59                             this.data = ' ';
  60                     }
  61                 });
  62
  63             this.d = wrapper.children(0);
  64             this.d.unwrap();
  65         } else {
  66             this.d = null;
  67         }
  68     },
  69
  70     doc: function() {
  71         if(this.d === null)
  72             return null;
  73         return documentElement.wrap(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
  74     },
  75
  76     wrapText: function(params) {
  77         params = _.extend({textNodeIdx: 0}, params);
  78         if(typeof params.textNodeIdx === 'number')
  79             params.textNodeIdx = [params.textNodeIdx];
  80
  81         var childrenInside = params.inside.children(),
  82             idx1 = Math.min.apply(Math, params.textNodeIdx),
  83             idx2 = Math.max.apply(Math, params.textNodeIdx),
  84             textNode1 = childrenInside[idx1],
  85             textNode2 = childrenInside[idx2],
  86             sameNode = textNode1.sameNode(textNode2),
  87             prefixOutside = textNode1.getText().substr(0, params.offsetStart),
  88             prefixInside = textNode1.getText().substr(params.offsetStart),
  89             suffixInside = textNode2.getText().substr(0, params.offsetEnd),
  90             suffixOutside = textNode2.getText().substr(params.offsetEnd)
  91         ;
  92
  93         var wrapperElement = documentElement.DocumentNodeElement.create({tag: params._with.tag, klass: params._with.klass});
  94         textNode1.after(wrapperElement);
  95         textNode1.detach();
  96
  97         if(prefixOutside.length > 0)
  98             wrapperElement.before({text:prefixOutside});
  99         if(sameNode) {
 100             var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
 101             wrapperElement.append({text: core});
 102         } else {
 103             textNode2.detach();
 104             if(prefixInside.length > 0)
 105                 wrapperElement.append({text: prefixInside});
 106             for(var i = idx1 + 1; i < idx2; i++) {
 107                 wrapperElement.append(childrenInside[i]);
 108             }
 109             if(suffixInside.length > 0)
 110                 wrapperElement.append({text: suffixInside});
 111         }
 112         if(suffixOutside.length > 0)
 113             wrapperElement.after({text: suffixOutside});
 114         return wrapperElement;
 115     },
 116     list: {}
 117 });
 118
 119 $.extend(Canvas.prototype.list, {
 120     create: function(params) {
 121         if(!(params.element1.parent().sameNode(params.element2.parent())))
 122             return false;
 123
 124         var parent = params.element1.parent();
 125
 126         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
 127             var tmp = params.element1;
 128             params.element1 = params.element2;
 129             params.element2 = tmp;
 130         }
 131
 132         var elementsToWrap = [];
 133
 134         var place = 'before';
 135         var canvas = this;
 136         parent.children().forEach(function(element) {
 137             if(element.sameNode(params.element1))
 138                 place = 'inside';
 139             if(place === 'inside') {
 140                 if(element instanceof documentElement.DocumentTextElement) {
 141                     element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'});
 142                     if(element.children()[0].sameNode(params.element1))
 143                         params.element1 = element;
 144                 }
 145                 element.setWlxmlClass('item');
 146                 elementsToWrap.push(element);
 147             }
 148             if(element.sameNode(params.element2))
 149                 return false;
 150         });
 151
 152         var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
 153
 154         var toret;
 155         if(parent.is('list')) {
 156             listElement.wrap({tag: 'div', klass: 'item'});
 157             toret = listElement.parent();
 158         } else {
 159             toret = listElement;
 160         }
 161
 162         params.element1.before(toret);
 163
 164         elementsToWrap.forEach(function(element) {
 165             element.detach();
 166             listElement.append(element);
 167         });
 168     }
 169 });
 170
 171 return {
 172     fromXML: function(xml) {
 173         return new Canvas(xml);
 174     }
 175 };
 176
 177 });