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                         this.data = $.trim(this.data);
  57                     }
  58                 });
  59
  60             this.d = wrapper.children(0);
  61             this.d.unwrap();
  62         } else {
  63             this.d = null;
  64         }
  65     },
  66
  67     doc: function() {
  68         if(this.d === null)
  69             return null;
  70         return documentElement.wrap(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
  71     },
  72
  73     wrapText: function(params) {
  74         params = _.extend({textNodeIdx: 0}, params);
  75         if(typeof params.textNodeIdx === 'number')
  76             params.textNodeIdx = [params.textNodeIdx];
  77
  78         var childrenInside = params.inside.children(),
  79             idx1 = Math.min.apply(Math, params.textNodeIdx),
  80             idx2 = Math.max.apply(Math, params.textNodeIdx),
  81             textNode1 = childrenInside[idx1],
  82             textNode2 = childrenInside[idx2],
  83             sameNode = textNode1.sameNode(textNode2),
  84             prefixOutside = textNode1.getText().substr(0, params.offsetStart),
  85             prefixInside = textNode1.getText().substr(params.offsetStart),
  86             suffixInside = textNode2.getText().substr(0, params.offsetEnd),
  87             suffixOutside = textNode2.getText().substr(params.offsetEnd)
  88         ;
  89
  90         var wrapperElement = documentElement.DocumentNodeElement.create({tag: params._with.tag, klass: params._with.klass});
  91         textNode1.after(wrapperElement);
  92         textNode1.detach();
  93
  94         if(prefixOutside.length > 0)
  95             wrapperElement.before({text:prefixOutside});
  96         if(sameNode) {
  97             var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
  98             wrapperElement.append({text: core});
  99         } else {
 100             textNode2.detach();
 101             if(prefixInside.length > 0)
 102                 wrapperElement.append({text: prefixInside});
 103             for(var i = idx1 + 1; i < idx2; i++) {
 104                 wrapperElement.append(childrenInside[i]);
 105             }
 106             if(suffixInside.length > 0)
 107                 wrapperElement.append({text: suffixInside});
 108         }
 109         if(suffixOutside.length > 0)
 110             wrapperElement.after({text: suffixOutside});
 111         return wrapperElement;
 112     },
 113     list: {}
 114 });
 115
 116 $.extend(Canvas.prototype.list, {
 117     create: function(params) {
 118         if(!(params.element1.parent().sameNode(params.element2.parent())))
 119             return false;
 120
 121         var parent = params.element1.parent();
 122
 123         if(parent.childIndex(params.element1) > parent.childIndex(params.element2)) {
 124             var tmp = params.element1;
 125             params.element1 = params.element2;
 126             params.element2 = tmp;
 127         }
 128
 129         var elementsToWrap = [];
 130
 131         var place = 'before';
 132         var canvas = this;
 133         parent.children().forEach(function(element) {
 134             if(element.sameNode(params.element1))
 135                 place = 'inside';
 136             if(place === 'inside') {
 137                 if(element instanceof documentElement.DocumentTextElement) {
 138                     element = element.wrapWithNodeElement({tag: 'div', klass: 'list.item'});
 139                     if(element.children()[0].sameNode(params.element1))
 140                         params.element1 = element;
 141                 }
 142                 element.setWlxmlClass('item');
 143                 elementsToWrap.push(element);
 144             }
 145             if(element.sameNode(params.element2))
 146                 return false;
 147         });
 148
 149         var listElement = documentElement.DocumentNodeElement.create({tag: 'div', klass: 'list-items' + (params.type === 'enum' ? '-enum' : '')});
 150
 151         var toret;
 152         if(parent.is('list')) {
 153             listElement.wrap({tag: 'div', klass: 'item'});
 154             toret = listElement.parent();
 155         } else {
 156             toret = listElement;
 157         }
 158
 159         params.element1.before(toret);
 160
 161         elementsToWrap.forEach(function(element) {
 162             element.detach();
 163             listElement.append(element);
 164         });
 165     }
 166 });
 167
 168 return {
 169     fromXML: function(xml) {
 170         return new Canvas(xml);
 171     }
 172 };
 173
 174 });