var app = angular.module('plunker', ['angularBootstrapNavTree']);

app.controller('MainCtrl', function($scope) {
  $scope.name = 'World';

  var treedata_geography = [{
    label: 'North America',
    children: [{
      label: 'Canada',
      children: ['Toronto', 'Vancouver']
    }, {
      label: 'USA',
      children: ['New York', 'Los Angeles']
    }, {
      label: 'Mexico',
      children: ['Mexico City', 'Guadalajara']
    }]
  }, {
    label: 'South America',
    children: [{
      label: 'Venezuela',
      children: ['Caracas', 'Maracaibo']
    }, {
      label: 'Brazil',
      children: ['Sao Paulo', 'Rio de Janeiro']
    }, {
      label: 'Argentina',
      children: ['Buenos Aires', 'Cordoba']
    }]
  }];
  $scope.my_data = treedata_geography;

});
<!DOCTYPE html>
<html ng-app="plunker">

<head>
  <meta charset="utf-8" />
  <title>AngularJS Plunker</title>
  <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />
  <link rel="stylesheet" href="abn_tree.css" />
  <link rel="stylesheet" href="tree.css" /> <!-- we are not using this at this moment -->
  <script>
    document.write('<base href="' + document.location + '" />');
  </script>
  <script src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
  <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
  <script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.11.0.min.js"></script>
  <script src="abn_tree_directive.js"></script>
  <script src="app.js"></script>
</head>

<body ng-controller="MainCtrl">
  <p>Hello {{name}}!</p>
   <abn-tree  tree-data="my_data" tree-control="my_tree" on-select="my_tree_handler(branch)" expand-level="2" initial-selection="Granny Smith"></abn-tree>
</body>

</html>
/* 
   abn-tree.css

   style for the angular-bootstrap-nav-tree
   for both Bootstrap 2 and Bootstrap 3

*/



/* ------------------------------------------
AngularJS Animations...

The first selector is for Angular 1.1.5
The second selector is for Angular 1.2.0

*/
.abn-tree-animate-enter,
li.abn-tree-row.ng-enter {
  transition: 200ms linear all;
  position: relative;
  display: block;
  opacity: 0;
  max-height:0px;
}
.abn-tree-animate-enter.abn-tree-animate-enter-active,
li.abn-tree-row.ng-enter-active{
  opacity: 1;
  max-height:30px;
}

.abn-tree-animate-leave,
li.abn-tree-row.ng-leave {
  transition: 200ms linear all;
  position: relative;
  display: block;
  height:30px;
  max-height: 30px;
  opacity: 1;
}
.abn-tree-animate-leave.abn-tree-animate-leave-active,
li.abn-tree-row.ng-leave-active {  
  height: 0px;
  max-height:0px;
  opacity: 0;
}


/* 
------------------------------------------
Angular 1.2.0 Animation 
*/


.abn-tree-animate.ng-enter{

}
.abn-tree-animate.ng-enter{

}




/*
   end animation stuff
-----------------------------------------
   begin normal css stuff
*/
ul.abn-tree li.abn-tree-row {  
  padding: 0px;
  margin:0px;
}

ul.abn-tree li.abn-tree-row a {
  padding: 3px 10px;
}

ul.abn-tree i.indented {
  padding: 2px;
}

.abn-tree {
  cursor: pointer;
}
ul.nav.abn-tree .level-1 .indented {
  position: relative;
  left: 0px;
}
ul.nav.abn-tree .level-2 .indented {
  position: relative;
  left: 20px;
}
ul.nav.abn-tree .level-3 .indented {
  position: relative;
  left: 40px;
}
ul.nav.abn-tree .level-4 .indented {
  position: relative;
  left: 60px;
}
ul.nav.abn-tree .level-5 .indented {
  position: relative;
  left: 80px;
}
ul.nav.abn-tree .level-6 .indented {
  position: relative;
  left: 100px;
}
ul.nav.nav-list.abn-tree .level-7 .indented {
  position: relative;
  left: 120px;
}
ul.nav.nav-list.abn-tree .level-8 .indented {
  position: relative;
  left: 140px;
}
ul.nav.nav-list.abn-tree .level-9 .indented {
  position: relative;
  left: 160px;
}
(function() {
  var module;

  module = angular.module('angularBootstrapNavTree', []);

  module.directive('abnTree', [
    '$timeout', function($timeout) {
      return {
        restrict: 'E',
        template: "<ul class=\"nav nav-list nav-pills nav-stacked abn-tree\">\n  <li ng-repeat=\"row in tree_rows | filter:{visible:true} track by row.branch.uid\" ng-animate=\"'abn-tree-animate'\" ng-class=\"'level-' + {{ row.level }} + (row.branch.selected ? ' active':'')\" class=\"abn-tree-row\">\n    <a ng-click=\"user_clicks_branch(row.branch)\">\n      <i ng-class=\"row.tree_icon\" ng-click=\"row.branch.expanded = !row.branch.expanded\" class=\"indented tree-icon\"> </i>\n      <span class=\"indented tree-label\">{{ row.label }} </span>\n    </a>\n  </li>\n</ul>",
        replace: true,
        scope: {
          treeData: '=',
          onSelect: '&',
          initialSelection: '@',
          treeControl: '='
        },
        link: function(scope, element, attrs) {
          var error, expand_all_parents, expand_level, for_all_ancestors, for_each_branch, get_parent, n, on_treeData_change, select_branch, selected_branch, tree;
          error = function(s) {
            console.log('ERROR:' + s);
            debugger;
            return void 0;
          };
          if (attrs.iconExpand == null) {
            attrs.iconExpand = 'icon-plus  glyphicon glyphicon-plus  fa fa-plus';
          }
          if (attrs.iconCollapse == null) {
            attrs.iconCollapse = 'icon-minus glyphicon glyphicon-minus fa fa-minus';
          }
          if (attrs.iconLeaf == null) {
            attrs.iconLeaf = 'icon-file  glyphicon glyphicon-file  fa fa-file';
          }
          if (attrs.expandLevel == null) {
            attrs.expandLevel = '3';
          }
          expand_level = parseInt(attrs.expandLevel, 10);
          if (!scope.treeData) {
            alert('no treeData defined for the tree!');
            return;
          }
          if (scope.treeData.length == null) {
            if (treeData.label != null) {
              scope.treeData = [treeData];
            } else {
              alert('treeData should be an array of root branches');
              return;
            }
          }
          for_each_branch = function(f) {
            var do_f, root_branch, _i, _len, _ref, _results;
            do_f = function(branch, level) {
              var child, _i, _len, _ref, _results;
              f(branch, level);
              if (branch.children != null) {
                _ref = branch.children;
                _results = [];
                for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                  child = _ref[_i];
                  _results.push(do_f(child, level + 1));
                }
                return _results;
              }
            };
            _ref = scope.treeData;
            _results = [];
            for (_i = 0, _len = _ref.length; _i < _len; _i++) {
              root_branch = _ref[_i];
              _results.push(do_f(root_branch, 1));
            }
            return _results;
          };
          selected_branch = null;
          select_branch = function(branch) {
            if (!branch) {
              if (selected_branch != null) {
                selected_branch.selected = false;
              }
              selected_branch = null;
              return;
            }
            if (branch !== selected_branch) {
              if (selected_branch != null) {
                selected_branch.selected = false;
              }
              branch.selected = true;
              selected_branch = branch;
              expand_all_parents(branch);
              if (branch.onSelect != null) {
                return $timeout(function() {
                  return branch.onSelect(branch);
                });
              } else {
                if (scope.onSelect != null) {
                  return $timeout(function() {
                    return scope.onSelect({
                      branch: branch
                    });
                  });
                }
              }
            }
          };
          scope.user_clicks_branch = function(branch) {
            if (branch !== selected_branch) {
              return select_branch(branch);
            }
          };
          get_parent = function(child) {
            var parent;
            parent = void 0;
            if (child.parent_uid) {
              for_each_branch(function(b) {
                if (b.uid === child.parent_uid) {
                  return parent = b;
                }
              });
            }
            return parent;
          };
          for_all_ancestors = function(child, fn) {
            var parent;
            parent = get_parent(child);
            if (parent != null) {
              fn(parent);
              return for_all_ancestors(parent, fn);
            }
          };
          expand_all_parents = function(child) {
            return for_all_ancestors(child, function(b) {
              return b.expanded = true;
            });
          };
          scope.tree_rows = [];
          on_treeData_change = function() {
            var add_branch_to_list, root_branch, _i, _len, _ref, _results;
            for_each_branch(function(b, level) {
              if (!b.uid) {
                return b.uid = "" + Math.random();
              }
            });
            console.log('UIDs are set.');
            for_each_branch(function(b) {
              var child, _i, _len, _ref, _results;
              if (angular.isArray(b.children)) {
                _ref = b.children;
                _results = [];
                for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                  child = _ref[_i];
                  _results.push(child.parent_uid = b.uid);
                }
                return _results;
              }
            });
            scope.tree_rows = [];
            for_each_branch(function(branch) {
              var child, f;
              if (branch.children) {
                if (branch.children.length > 0) {
                  f = function(e) {
                    if (typeof e === 'string') {
                      return {
                        label: e,
                        children: []
                      };
                    } else {
                      return e;
                    }
                  };
                  return branch.children = (function() {
                    var _i, _len, _ref, _results;
                    _ref = branch.children;
                    _results = [];
                    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                      child = _ref[_i];
                      _results.push(f(child));
                    }
                    return _results;
                  })();
                }
              } else {
                return branch.children = [];
              }
            });
            add_branch_to_list = function(level, branch, visible) {
              var child, child_visible, tree_icon, _i, _len, _ref, _results;
              if (branch.expanded == null) {
                branch.expanded = false;
              }
              if (!branch.children || branch.children.length === 0) {
                tree_icon = attrs.iconLeaf;
              } else {
                if (branch.expanded) {
                  tree_icon = attrs.iconCollapse;
                } else {
                  tree_icon = attrs.iconExpand;
                }
              }
              scope.tree_rows.push({
                level: level,
                branch: branch,
                label: branch.label,
                tree_icon: tree_icon,
                visible: visible
              });
              if (branch.children != null) {
                _ref = branch.children;
                _results = [];
                for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                  child = _ref[_i];
                  child_visible = visible && branch.expanded;
                  _results.push(add_branch_to_list(level + 1, child, child_visible));
                }
                return _results;
              }
            };
            _ref = scope.treeData;
            _results = [];
            for (_i = 0, _len = _ref.length; _i < _len; _i++) {
              root_branch = _ref[_i];
              _results.push(add_branch_to_list(1, root_branch, true));
            }
            return _results;
          };
          scope.$watch('treeData', on_treeData_change, true);
          if (attrs.initialSelection != null) {
            for_each_branch(function(b) {
              if (b.label === attrs.initialSelection) {
                return $timeout(function() {
                  return select_branch(b);
                });
              }
            });
          }
          n = scope.treeData.length;
          console.log('num root branches = ' + n);
          for_each_branch(function(b, level) {
            b.level = level;
            return b.expanded = b.level < expand_level;
          });
          if (scope.treeControl != null) {
            if (angular.isObject(scope.treeControl)) {
              tree = scope.treeControl;
              tree.expand_all = function() {
                return for_each_branch(function(b, level) {
                  return b.expanded = true;
                });
              };
              tree.collapse_all = function() {
                return for_each_branch(function(b, level) {
                  return b.expanded = false;
                });
              };
              tree.get_first_branch = function() {
                n = scope.treeData.length;
                if (n > 0) {
                  return scope.treeData[0];
                }
              };
              tree.select_first_branch = function() {
                var b;
                b = tree.get_first_branch();
                return tree.select_branch(b);
              };
              tree.get_selected_branch = function() {
                return selected_branch;
              };
              tree.get_parent_branch = function(b) {
                return get_parent(b);
              };
              tree.select_branch = function(b) {
                select_branch(b);
                return b;
              };
              tree.get_children = function(b) {
                return b.children;
              };
              tree.select_parent_branch = function(b) {
                var p;
                if (b == null) {
                  b = tree.get_selected_branch();
                }
                if (b != null) {
                  p = tree.get_parent_branch(b);
                  if (p != null) {
                    tree.select_branch(p);
                    return p;
                  }
                }
              };
              tree.add_branch = function(parent, new_branch) {
                if (parent != null) {
                  parent.children.push(new_branch);
                  parent.expanded = true;
                } else {
                  scope.treeData.push(new_branch);
                }
                return new_branch;
              };
              tree.add_root_branch = function(new_branch) {
                tree.add_branch(null, new_branch);
                return new_branch;
              };
              tree.expand_branch = function(b) {
                if (b == null) {
                  b = tree.get_selected_branch();
                }
                if (b != null) {
                  b.expanded = true;
                  return b;
                }
              };
              tree.collapse_branch = function(b) {
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  b.expanded = false;
                  return b;
                }
              };
              tree.get_siblings = function(b) {
                var p, siblings;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  p = tree.get_parent_branch(b);
                  if (p) {
                    siblings = p.children;
                  } else {
                    siblings = scope.treeData;
                  }
                  return siblings;
                }
              };
              tree.get_next_sibling = function(b) {
                var i, siblings;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  siblings = tree.get_siblings(b);
                  n = siblings.length;
                  i = siblings.indexOf(b);
                  if (i < n) {
                    return siblings[i + 1];
                  }
                }
              };
              tree.get_prev_sibling = function(b) {
                var i, siblings;
                if (b == null) {
                  b = selected_branch;
                }
                siblings = tree.get_siblings(b);
                n = siblings.length;
                i = siblings.indexOf(b);
                if (i > 0) {
                  return siblings[i - 1];
                }
              };
              tree.select_next_sibling = function(b) {
                var next;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  next = tree.get_next_sibling(b);
                  if (next != null) {
                    return tree.select_branch(next);
                  }
                }
              };
              tree.select_prev_sibling = function(b) {
                var prev;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  prev = tree.get_prev_sibling(b);
                  if (prev != null) {
                    return tree.select_branch(prev);
                  }
                }
              };
              tree.get_first_child = function(b) {
                var _ref;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  if (((_ref = b.children) != null ? _ref.length : void 0) > 0) {
                    return b.children[0];
                  }
                }
              };
              tree.get_closest_ancestor_next_sibling = function(b) {
                var next, parent;
                next = tree.get_next_sibling(b);
                if (next != null) {
                  return next;
                } else {
                  parent = tree.get_parent_branch(b);
                  return tree.get_closest_ancestor_next_sibling(parent);
                }
              };
              tree.get_next_branch = function(b) {
                var next;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  next = tree.get_first_child(b);
                  if (next != null) {
                    return next;
                  } else {
                    next = tree.get_closest_ancestor_next_sibling(b);
                    return next;
                  }
                }
              };
              tree.select_next_branch = function(b) {
                var next;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  next = tree.get_next_branch(b);
                  if (next != null) {
                    tree.select_branch(next);
                    return next;
                  }
                }
              };
              tree.last_descendant = function(b) {
                var last_child;
                if (b == null) {
                  debugger;
                }
                n = b.children.length;
                if (n === 0) {
                  return b;
                } else {
                  last_child = b.children[n - 1];
                  return tree.last_descendant(last_child);
                }
              };
              tree.get_prev_branch = function(b) {
                var parent, prev_sibling;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  prev_sibling = tree.get_prev_sibling(b);
                  if (prev_sibling != null) {
                    return tree.last_descendant(prev_sibling);
                  } else {
                    parent = tree.get_parent_branch(b);
                    return parent;
                  }
                }
              };
              return tree.select_prev_branch = function(b) {
                var prev;
                if (b == null) {
                  b = selected_branch;
                }
                if (b != null) {
                  prev = tree.get_prev_branch(b);
                  if (prev != null) {
                    tree.select_branch(prev);
                    return prev;
                  }
                }
              };
            }
          }
        }
      };
    }
  ]);

}).call(this);
.tree {
    min-height:20px;
    padding:19px;
    margin-bottom:20px;
    background-color:#fbfbfb;
    border:1px solid #999;
    -webkit-border-radius:4px;
    -moz-border-radius:4px;
    border-radius:4px;
    -webkit-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);
    -moz-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);
    box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05)
}
.tree li {
    list-style-type:none;
    margin:0;
    padding:10px 5px 0 5px;
    position:relative
}
.tree li::before, .tree li::after {
    content:'';
    left:-20px;
    position:absolute;
    right:auto
}
.tree li::before {
    border-left:1px solid #999;
    bottom:50px;
    height:100%;
    top:0;
    width:1px
}
.tree li::after {
    border-top:1px solid #999;
    height:20px;
    top:25px;
    width:25px
}
.tree li span {
    -moz-border-radius:5px;
    -webkit-border-radius:5px;
    border:1px solid #999;
    border-radius:5px;
    display:inline-block;
    padding:3px 8px;
    text-decoration:none
}
.tree li.parent_li>span {
    cursor:pointer
}
.tree>ul>li::before, .tree>ul>li::after {
    border:0
}
.tree li:last-child::before {
    height:30px
}
.tree li.parent_li>span:hover, .tree li.parent_li>span:hover+ul li span {
    background:#eee;
    border:1px solid #94a0b4;
    color:#000
}