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/*
 * jQuery treetable Plugin 3.2.0
 * http://ludo.cubicphuse.nl/jquery-treetable
 *
 * Copyright 2013, Ludo van den Boom
 * Dual licensed under the MIT or GPL Version 2 licenses.
 */
(function($) {
  var Node, Tree, methods;

  Node = (function() {
    function Node(row, tree, settings) {
      var parentId;

      this.row = row;
      this.tree = tree;
      this.settings = settings;

      // TODO Ensure id/parentId is always a string (not int)
      this.id = this.row.data(this.settings.nodeIdAttr);

      // TODO Move this to a setParentId function?
      parentId = this.row.data(this.settings.parentIdAttr);
      if (parentId != null && parentId !== "") {
        this.parentId = parentId;
      }

      this.treeCell = $(this.row.children(this.settings.columnElType)[this.settings.column]);
      this.expander = $(this.settings.expanderTemplate);
      this.indenter = $(this.settings.indenterTemplate);
      this.children = [];
      this.initialized = false;
      this.treeCell.prepend(this.indenter);
    }

    Node.prototype.addChild = function(child) {
      return this.children.push(child);
    };

    Node.prototype.ancestors = function() {
      var ancestors, node;
      node = this;
      ancestors = [];
      while (node = node.parentNode()) {
        ancestors.push(node);
      }
      return ancestors;
    };

    Node.prototype.collapse = function() {
      if (this.collapsed()) {
        return this;
      }

      this.row.removeClass("expanded").addClass("collapsed");

      this._hideChildren();
      this.expander.attr("title", this.settings.stringExpand);

      if (this.initialized && this.settings.onNodeCollapse != null) {
        this.settings.onNodeCollapse.apply(this);
      }

      return this;
    };

    Node.prototype.collapsed = function() {
      return this.row.hasClass("collapsed");
    };

    // TODO destroy: remove event handlers, expander, indenter, etc.

    Node.prototype.expand = function() {
      if (this.expanded()) {
        return this;
      }

      this.row.removeClass("collapsed").addClass("expanded");

      if (this.initialized && this.settings.onNodeExpand != null) {
        this.settings.onNodeExpand.apply(this);
      }

      if ($(this.row).is(":visible")) {
        this._showChildren();
      }

      this.expander.attr("title", this.settings.stringCollapse);

      return this;
    };

    Node.prototype.expanded = function() {
      return this.row.hasClass("expanded");
    };

    Node.prototype.hide = function() {
      this._hideChildren();
      this.row.hide();
      return this;
    };

    Node.prototype.isBranchNode = function() {
      if(this.children.length > 0 || this.row.data(this.settings.branchAttr) === true) {
        return true;
      } else {
        return false;
      }
    };

    Node.prototype.updateBranchLeafClass = function(){
      this.row.removeClass('branch');
      this.row.removeClass('leaf');
      this.row.addClass(this.isBranchNode() ? 'branch' : 'leaf');
    };

    Node.prototype.level = function() {
      return this.ancestors().length;
    };

    Node.prototype.parentNode = function() {
      if (this.parentId != null) {
        return this.tree[this.parentId];
      } else {
        return null;
      }
    };

    Node.prototype.removeChild = function(child) {
      var i = $.inArray(child, this.children);
      return this.children.splice(i, 1)
    };

    Node.prototype.render = function() {
      var handler,
          settings = this.settings,
          target;

      if (settings.expandable === true && this.isBranchNode()) {
        handler = function(e) {
          $(this).parents("table").treetable("node", $(this).parents("tr").data(settings.nodeIdAttr)).toggle();
          return e.preventDefault();
        };

        this.indenter.html(this.expander);
        target = settings.clickableNodeNames === true ? this.treeCell : this.expander;

        target.off("click.treetable").on("click.treetable", handler);
        target.off("keydown.treetable").on("keydown.treetable", function(e) {
          if (e.keyCode == 13) {
            handler.apply(this, [e]);
          }
        });
      }

      this.indenter[0].style.paddingLeft = "" + (this.level() * settings.indent) + "px";

      return this;
    };

    Node.prototype.reveal = function() {
      if (this.parentId != null) {
        this.parentNode().reveal();
      }
      return this.expand();
    };

    Node.prototype.setParent = function(node) {
      if (this.parentId != null) {
        this.tree[this.parentId].removeChild(this);
      }
      this.parentId = node.id;
      this.row.data(this.settings.parentIdAttr, node.id);
      return node.addChild(this);
    };

    Node.prototype.show = function() {
      if (!this.initialized) {
        this._initialize();
      }
      this.row.show();
      if (this.expanded()) {
        this._showChildren();
      }
      return this;
    };

    Node.prototype.toggle = function() {
      if (this.expanded()) {
        this.collapse();
      } else {
        this.expand();
      }
      return this;
    };

    Node.prototype._hideChildren = function() {
      var child, _i, _len, _ref, _results;
      _ref = this.children;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        child = _ref[_i];
        _results.push(child.hide());
      }
      return _results;
    };

    Node.prototype._initialize = function() {
      var settings = this.settings;

      this.render();

      if (settings.expandable === true && settings.initialState === "collapsed") {
        this.collapse();
      } else {
        this.expand();
      }

      if (settings.onNodeInitialized != null) {
        settings.onNodeInitialized.apply(this);
      }

      return this.initialized = true;
    };

    Node.prototype._showChildren = function() {
      var child, _i, _len, _ref, _results;
      _ref = this.children;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        child = _ref[_i];
        _results.push(child.show());
      }
      return _results;
    };

    return Node;
  })();

  Tree = (function() {
    function Tree(table, settings) {
      this.table = table;
      this.settings = settings;
      this.tree = {};

      // Cache the nodes and roots in simple arrays for quick access/iteration
      this.nodes = [];
      this.roots = [];
    }

    Tree.prototype.collapseAll = function() {
      var node, _i, _len, _ref, _results;
      _ref = this.nodes;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        node = _ref[_i];
        _results.push(node.collapse());
      }
      return _results;
    };

    Tree.prototype.expandAll = function() {
      var node, _i, _len, _ref, _results;
      _ref = this.nodes;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        node = _ref[_i];
        _results.push(node.expand());
      }
      return _results;
    };

    Tree.prototype.findLastNode = function (node) {
      if (node.children.length > 0) {
        return this.findLastNode(node.children[node.children.length - 1]);
      } else {
        return node;
      }
    };

    Tree.prototype.loadRows = function(rows) {
      var node, row, i;

      if (rows != null) {
        for (i = 0; i < rows.length; i++) {
          row = $(rows[i]);

          if (row.data(this.settings.nodeIdAttr) != null) {
            node = new Node(row, this.tree, this.settings);
            this.nodes.push(node);
            this.tree[node.id] = node;

            if (node.parentId != null && this.tree[node.parentId]) {
              this.tree[node.parentId].addChild(node);
            } else {
              this.roots.push(node);
            }
          }
        }
      }

      for (i = 0; i < this.nodes.length; i++) {
        node = this.nodes[i].updateBranchLeafClass();
      }

      return this;
    };

    Tree.prototype.move = function(node, destination) {
      // Conditions:
      // 1: +node+ should not be inserted as a child of +node+ itself.
      // 2: +destination+ should not be the same as +node+'s current parent (this
      //    prevents +node+ from being moved to the same location where it already
      //    is).
      // 3: +node+ should not be inserted in a location in a branch if this would
      //    result in +node+ being an ancestor of itself.
      var nodeParent = node.parentNode();
      if (node !== destination && destination.id !== node.parentId && $.inArray(node, destination.ancestors()) === -1) {
        node.setParent(destination);
        this._moveRows(node, destination);

        // Re-render parentNode if this is its first child node, and therefore
        // doesn't have the expander yet.
        if (node.parentNode().children.length === 1) {
          node.parentNode().render();
        }
      }

      if(nodeParent){
        nodeParent.updateBranchLeafClass();
      }
      if(node.parentNode()){
        node.parentNode().updateBranchLeafClass();
      }
      node.updateBranchLeafClass();
      return this;
    };

    Tree.prototype.removeNode = function(node) {
      // Recursively remove all descendants of +node+
      this.unloadBranch(node);

      // Remove node from DOM ()
      node.row.remove();

      // Remove node from parent children list
      if (node.parentId != null) {
        node.parentNode().removeChild(node);
      }

      // Clean up Tree object (so Node objects are GC-ed)
      delete this.tree[node.id];
      this.nodes.splice($.inArray(node, this.nodes), 1);

      return this;
    }

    Tree.prototype.render = function() {
      var root, _i, _len, _ref;
      _ref = this.roots;
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        root = _ref[_i];

        // Naming is confusing (show/render). I do not call render on node from
        // here.
        root.show();
      }
      return this;
    };

    Tree.prototype.sortBranch = function(node, sortFun) {
      // First sort internal array of children
      node.children.sort(sortFun);

      // Next render rows in correct order on page
      this._sortChildRows(node);

      return this;
    };

    Tree.prototype.unloadBranch = function(node) {
      // Use a copy of the children array to not have other functions interfere
      // with this function if they manipulate the children array
      // (eg removeNode).
      var children = node.children.slice(0),
          i;

      for (i = 0; i < children.length; i++) {
        this.removeNode(children[i]);
      }

      // Reset node's collection of children
      node.children = [];

      node.updateBranchLeafClass();

      return this;
    };

    Tree.prototype._moveRows = function(node, destination) {
      var children = node.children, i;

      node.row.insertAfter(destination.row);
      node.render();

      // Loop backwards through children to have them end up on UI in correct
      // order (see #112)
      for (i = children.length - 1; i >= 0; i--) {
        this._moveRows(children[i], node);
      }
    };

    // Special _moveRows case, move children to itself to force sorting
    Tree.prototype._sortChildRows = function(parentNode) {
      return this._moveRows(parentNode, parentNode);
    };

    return Tree;
  })();

  // jQuery Plugin
  methods = {
    init: function(options, force) {
      var settings;

      settings = $.extend({
        branchAttr: "ttBranch",
        clickableNodeNames: false,
        column: 0,
        columnElType: "td", // i.e. 'td', 'th' or 'td,th'
        expandable: false,
        expanderTemplate: " ",
        indent: 19,
        indenterTemplate: "",
        initialState: "collapsed",
        nodeIdAttr: "ttId", // maps to data-tt-id
        parentIdAttr: "ttParentId", // maps to data-tt-parent-id
        stringExpand: "Expand",
        stringCollapse: "Collapse",

        // Events
        onInitialized: null,
        onNodeCollapse: null,
        onNodeExpand: null,
        onNodeInitialized: null
      }, options);

      return this.each(function() {
        var el = $(this), tree;

        if (force || el.data("treetable") === undefined) {
          tree = new Tree(this, settings);
          tree.loadRows(this.rows).render();

          el.addClass("treetable").data("treetable", tree);

          if (settings.onInitialized != null) {
            settings.onInitialized.apply(tree);
          }
        }

        return el;
      });
    },

    destroy: function() {
      return this.each(function() {
        return $(this).removeData("treetable").removeClass("treetable");
      });
    },

    collapseAll: function() {
      this.data("treetable").collapseAll();
      return this;
    },

    collapseNode: function(id) {
      var node = this.data("treetable").tree[id];

      if (node) {
        node.collapse();
      } else {
        throw new Error("Unknown node '" + id + "'");
      }

      return this;
    },

    expandAll: function() {
      this.data("treetable").expandAll();
      return this;
    },

    expandNode: function(id) {
      var node = this.data("treetable").tree[id];

      if (node) {
        if (!node.initialized) {
          node._initialize();
        }

        node.expand();
      } else {
        throw new Error("Unknown node '" + id + "'");
      }

      return this;
    },

    loadBranch: function(node, rows) {
      var settings = this.data("treetable").settings,
          tree = this.data("treetable").tree;

      // TODO Switch to $.parseHTML
      rows = $(rows);

      if (node == null) { // Inserting new root nodes
        this.append(rows);
      } else {
        var lastNode = this.data("treetable").findLastNode(node);
        rows.insertAfter(lastNode.row);
      }

      this.data("treetable").loadRows(rows);

      // Make sure nodes are properly initialized
      rows.filter("tr").each(function() {
        tree[$(this).data(settings.nodeIdAttr)].show();
      });

      if (node != null) {
        // Re-render parent to ensure expander icon is shown (#79)
        node.render().expand();
      }

      return this;
    },

    move: function(nodeId, destinationId) {
      var destination, node;

      node = this.data("treetable").tree[nodeId];
      destination = this.data("treetable").tree[destinationId];
      this.data("treetable").move(node, destination);

      return this;
    },

    node: function(id) {
      return this.data("treetable").tree[id];
    },

    removeNode: function(id) {
      var node = this.data("treetable").tree[id];

      if (node) {
        this.data("treetable").removeNode(node);
      } else {
        throw new Error("Unknown node '" + id + "'");
      }

      return this;
    },

    reveal: function(id) {
      var node = this.data("treetable").tree[id];

      if (node) {
        node.reveal();
      } else {
        throw new Error("Unknown node '" + id + "'");
      }

      return this;
    },

    sortBranch: function(node, columnOrFunction) {
      var settings = this.data("treetable").settings,
          prepValue,
          sortFun;

      columnOrFunction = columnOrFunction || settings.column;
      sortFun = columnOrFunction;

      if ($.isNumeric(columnOrFunction)) {
        sortFun = function(a, b) {
          var extractValue, valA, valB;

          extractValue = function(node) {
            var val = node.row.find("td:eq(" + columnOrFunction + ")").text();
            // Ignore trailing/leading whitespace and use uppercase values for
            // case insensitive ordering
            return $.trim(val).toUpperCase();
          }

          valA = extractValue(a);
          valB = extractValue(b);

          if (valA < valB) return -1;
          if (valA > valB) return 1;
          return 0;
        };
      }

      this.data("treetable").sortBranch(node, sortFun);
      return this;
    },

    unloadBranch: function(node) {
      this.data("treetable").unloadBranch(node);
      return this;
    }
  };

  $.fn.treetable = function(method) {
    if (methods[method]) {
      return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
    } else if (typeof method === 'object' || !method) {
      return methods.init.apply(this, arguments);
    } else {
      return $.error("Method " + method + " does not exist on jQuery.treetable");
    }
  };

  // Expose classes to world
  this.TreeTable || (this.TreeTable = {});
  this.TreeTable.Node = Node;
  this.TreeTable.Tree = Tree;
})(jQuery);