git.r.bdr.sh - rbdr/r.bdr.sh/blob - jekyll/js/vendor/neon/stdlib/node_support.js

   1 Module('NodeSupport')({
   2     prototype : {
   3         parent      : null,
   4
   5         children    : [],
   6
   7         appendChild : function(child) {
   8             if(child.parent) {
   9                 child.parent.removeChild(child);
  10             }
  11
  12             if(!this.hasOwnProperty('children')) {
  13                 this.children = [];
  14             }
  15
  16             this.children.push(child);
  17             this[child.name] = child;
  18             child.setParent(this);
  19             return child;
  20         },
  21
  22         insertBefore : function (child, beforeChild) {
  23             var position;
  24
  25             if (child.parent) {
  26                 child.parent.removeChild(child);
  27             }
  28
  29             if (!this.hasOwnProperty('children')) {
  30                 this.children = [];
  31             }
  32
  33             if (typeof beforeChild === 'undefined') {
  34                 this.appendChild(child);
  35             } else {
  36                 position = this.children.indexOf(beforeChild);
  37                 this.children.splice(position, 0, child);
  38
  39                 this[child.name] = child;
  40                 child.setParent(this);
  41             }
  42
  43             return child;
  44
  45         },
  46
  47         insertChild : function(child, position) {
  48             console.warn('NodeSupport insertChild method is deprecated, try insertBefore');
  49
  50             if (child.parent) {
  51                 child.parent.removeChild(child);
  52             }
  53
  54             if (!this.hasOwnProperty('children')) {
  55                 this.children = [];
  56             }
  57
  58             if (typeof position == 'undefined') {
  59                 this.children.push(child);
  60                 this[child.name] = child;
  61                 child.setParent(this);
  62                 return child;
  63             }
  64
  65             this.children.splice(position, 0, child);
  66             this[child.name] = child;
  67             child.setParent(this);
  68             return child;
  69         },
  70
  71         removeChild : function (child) {
  72             var position = this.children.indexOf(child);
  73
  74             if (position !== -1) {
  75                 this.children.splice(position, 1);
  76                 delete this[child.name];
  77                 child.parent = null;
  78             }
  79
  80             return child;
  81         },
  82
  83         setParent   : function (parent) {
  84             this.parent = parent;
  85             return this;
  86         },
  87
  88         getDescendants : function () {
  89             var nodes = [];
  90             this.children.forEach(function (node) {
  91                 nodes.push(node);
  92             });
  93             this.children.forEach(function (node) {
  94                 nodes = nodes.concat(node.getDescendants());
  95             });
  96             return nodes;
  97         },
  98
  99         getPreviousSibling : function () {
 100             if (typeof this.parent === 'undefined') {
 101                 return;
 102             }
 103
 104             if (this.parent.children[0] === this) {
 105                 return;
 106             }
 107
 108             return this.parent.children[ this.parent.children.indexOf(this) - 1 ];
 109         },
 110
 111         getNextSibling : function () {
 112             if (typeof this.parent === 'undefined') {
 113                 return;
 114             }
 115
 116             if (this.parent.children[ this.parent.children.length - 1 ] === this) {
 117                 return;
 118             }
 119
 120             return this.parent.children[ this.parent.children.indexOf(this) + 1 ];
 121         }
 122     }
 123 });