var $, BorderDropHint, DragAndDropHandler, DragElement, ElementsRenderer, FolderElement, GhostDropHint, HitAreasGenerator, JqTreeWidget, KeyHandler, MouseWidget, Node, NodeElement, Position, SaveStateHandler, ScrollHandler, SelectNodeHandler, SimpleWidget, __version__, drag_and_drop_handler, isFunction, node_module, ref, util_module,
  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;

__version__ = require('./version');

drag_and_drop_handler = require('./drag_and_drop_handler');

ElementsRenderer = require('./elements_renderer');

KeyHandler = require('./key_handler');

MouseWidget = require('./mouse.widget');

SaveStateHandler = require('./save_state_handler');

ScrollHandler = require('./scroll_handler');

SelectNodeHandler = require('./select_node_handler');

SimpleWidget = require('./simple.widget');

node_module = require('./node');

Node = node_module.Node;

Position = node_module.Position;

util_module = require('./util');

isFunction = util_module.isFunction;

ref = require('./node_element'), BorderDropHint = ref.BorderDropHint, FolderElement = ref.FolderElement, GhostDropHint = ref.GhostDropHint, NodeElement = ref.NodeElement;

DragAndDropHandler = drag_and_drop_handler.DragAndDropHandler, DragElement = drag_and_drop_handler.DragElement, HitAreasGenerator = drag_and_drop_handler.HitAreasGenerator;

$ = jQuery;

JqTreeWidget = (function(superClass) {
  extend(JqTreeWidget, superClass);

  function JqTreeWidget() {
    return JqTreeWidget.__super__.constructor.apply(this, arguments);
  }

  JqTreeWidget.prototype.BorderDropHint = BorderDropHint;

  JqTreeWidget.prototype.DragElement = DragElement;

  JqTreeWidget.prototype.DragAndDropHandler = DragAndDropHandler;

  JqTreeWidget.prototype.ElementsRenderer = ElementsRenderer;

  JqTreeWidget.prototype.GhostDropHint = GhostDropHint;

  JqTreeWidget.prototype.HitAreasGenerator = HitAreasGenerator;

  JqTreeWidget.prototype.Node = Node;

  JqTreeWidget.prototype.SaveStateHandler = SaveStateHandler;

  JqTreeWidget.prototype.ScrollHandler = ScrollHandler;

  JqTreeWidget.prototype.SelectNodeHandler = SelectNodeHandler;

  JqTreeWidget.prototype.defaults = {
    autoOpen: false,
    saveState: false,
    dragAndDrop: false,
    selectable: true,
    useContextMenu: true,
    onCanSelectNode: null,
    onSetStateFromStorage: null,
    onGetStateFromStorage: null,
    onCreateLi: null,
    onIsMoveHandle: null,
    onCanMove: null,
    onCanMoveTo: null,
    onLoadFailed: null,
    autoEscape: true,
    dataUrl: null,
    closedIcon: null,
    openedIcon: '▼',
    slide: true,
    nodeClass: Node,
    dataFilter: null,
    keyboardSupport: true,
    openFolderDelay: 500,
    rtl: null,
    onDragMove: null,
    onDragStop: null,
    buttonLeft: true,
    onLoading: null
  };

  JqTreeWidget.prototype.toggle = function(node, slide) {
    if (slide == null) {
      slide = null;
    }
    if (slide === null) {
      slide = this.options.slide;
    }
    if (node.is_open) {
      this.closeNode(node, slide);
    } else {
      this.openNode(node, slide);
    }
    return this.element;
  };

  JqTreeWidget.prototype.getTree = function() {
    return this.tree;
  };

  JqTreeWidget.prototype.selectNode = function(node) {
    this._selectNode(node, false);
    return this.element;
  };

  JqTreeWidget.prototype._selectNode = function(node, must_toggle) {
    var canSelect, deselected_node, openParents, saveState;
    if (must_toggle == null) {
      must_toggle = false;
    }
    if (!this.select_node_handler) {
      return;
    }
    canSelect = (function(_this) {
      return function() {
        if (_this.options.onCanSelectNode) {
          return _this.options.selectable && _this.options.onCanSelectNode(node);
        } else {
          return _this.options.selectable;
        }
      };
    })(this);
    openParents = (function(_this) {
      return function() {
        var parent;
        parent = node.parent;
        if (parent && parent.parent && !parent.is_open) {
          return _this.openNode(parent, false);
        }
      };
    })(this);
    saveState = (function(_this) {
      return function() {
        if (_this.options.saveState) {
          return _this.save_state_handler.saveState();
        }
      };
    })(this);
    if (!node) {
      this._deselectCurrentNode();
      saveState();
      return;
    }
    if (!canSelect()) {
      return;
    }
    if (this.select_node_handler.isNodeSelected(node)) {
      if (must_toggle) {
        this._deselectCurrentNode();
        this._triggerEvent('tree.select', {
          node: null,
          previous_node: node
        });
      }
    } else {
      deselected_node = this.getSelectedNode();
      this._deselectCurrentNode();
      this.addToSelection(node);
      this._triggerEvent('tree.select', {
        node: node,
        deselected_node: deselected_node
      });
      openParents();
    }
    return saveState();
  };

  JqTreeWidget.prototype.getSelectedNode = function() {
    if (this.select_node_handler) {
      return this.select_node_handler.getSelectedNode();
    } else {
      return null;
    }
  };

  JqTreeWidget.prototype.toJson = function() {
    return JSON.stringify(this.tree.getData());
  };

  JqTreeWidget.prototype.loadData = function(data, parent_node) {
    this._loadData(data, parent_node);
    return this.element;
  };


  /*
  signatures:
  - loadDataFromUrl(url, parent_node=null, on_finished=null)
      loadDataFromUrl('/my_data');
      loadDataFromUrl('/my_data', node1);
      loadDataFromUrl('/my_data', node1, function() { console.log('finished'); });
      loadDataFromUrl('/my_data', null, function() { console.log('finished'); });
  
  - loadDataFromUrl(parent_node=null, on_finished=null)
      loadDataFromUrl();
      loadDataFromUrl(node1);
      loadDataFromUrl(null, function() { console.log('finished'); });
      loadDataFromUrl(node1, function() { console.log('finished'); });
   */

  JqTreeWidget.prototype.loadDataFromUrl = function(param1, param2, param3) {
    if ($.type(param1) === 'string') {
      this._loadDataFromUrl(param1, param2, param3);
    } else {
      this._loadDataFromUrl(null, param1, param2);
    }
    return this.element;
  };

  JqTreeWidget.prototype.reload = function(on_finished) {
    this._loadDataFromUrl(null, null, on_finished);
    return this.element;
  };

  JqTreeWidget.prototype._loadDataFromUrl = function(url_info, parent_node, on_finished) {
    var $el, addLoadingClass, handeLoadData, handleError, handleSuccess, loadDataFromUrlInfo, parseUrlInfo, removeLoadingClass;
    $el = null;
    addLoadingClass = (function(_this) {
      return function() {
        if (parent_node) {
          $el = $(parent_node.element);
        } else {
          $el = _this.element;
        }
        $el.addClass('jqtree-loading');
        return _this._notifyLoading(true, parent_node, $el);
      };
    })(this);
    removeLoadingClass = (function(_this) {
      return function() {
        if ($el) {
          $el.removeClass('jqtree-loading');
          return _this._notifyLoading(false, parent_node, $el);
        }
      };
    })(this);
    parseUrlInfo = function() {
      if ($.type(url_info) === 'string') {
        return {
          url: url_info
        };
      }
      if (!url_info.method) {
        url_info.method = 'get';
      }
      return url_info;
    };
    handeLoadData = (function(_this) {
      return function(data) {
        removeLoadingClass();
        _this._loadData(data, parent_node);
        if (on_finished && $.isFunction(on_finished)) {
          return on_finished();
        }
      };
    })(this);
    handleSuccess = (function(_this) {
      return function(response) {
        var data;
        if ($.isArray(response) || typeof response === 'object') {
          data = response;
        } else if (data != null) {
          data = $.parseJSON(response);
        } else {
          data = [];
        }
        if (_this.options.dataFilter) {
          data = _this.options.dataFilter(data);
        }
        return handeLoadData(data);
      };
    })(this);
    handleError = (function(_this) {
      return function(response) {
        removeLoadingClass();
        if (_this.options.onLoadFailed) {
          return _this.options.onLoadFailed(response);
        }
      };
    })(this);
    loadDataFromUrlInfo = function() {
      url_info = parseUrlInfo();
      return $.ajax($.extend({}, url_info, {
        method: url_info.method != null ? url_info.method.toUpperCase() : 'GET',
        cache: false,
        dataType: 'json',
        success: handleSuccess,
        error: handleError
      }));
    };
    if (!url_info) {
      url_info = this._getDataUrlInfo(parent_node);
    }
    addLoadingClass();
    if (!url_info) {
      removeLoadingClass();
    } else if ($.isArray(url_info)) {
      handeLoadData(url_info);
    } else {
      loadDataFromUrlInfo();
    }
  };

  JqTreeWidget.prototype._loadData = function(data, parent_node) {
    var deselectNodes, loadSubtree;
    if (parent_node == null) {
      parent_node = null;
    }
    deselectNodes = (function(_this) {
      return function() {
        var i, len, n, selected_nodes_under_parent;
        if (_this.select_node_handler) {
          selected_nodes_under_parent = _this.select_node_handler.getSelectedNodesUnder(parent_node);
          for (i = 0, len = selected_nodes_under_parent.length; i < len; i++) {
            n = selected_nodes_under_parent[i];
            _this.select_node_handler.removeFromSelection(n);
          }
        }
        return null;
      };
    })(this);
    loadSubtree = (function(_this) {
      return function() {
        parent_node.loadFromData(data);
        parent_node.load_on_demand = false;
        parent_node.is_loading = false;
        return _this._refreshElements(parent_node);
      };
    })(this);
    if (!data) {
      return;
    }
    this._triggerEvent('tree.load_data', {
      tree_data: data
    });
    if (!parent_node) {
      this._initTree(data);
    } else {
      deselectNodes();
      loadSubtree();
    }
    if (this.isDragging()) {
      return this.dnd_handler.refresh();
    }
  };

  JqTreeWidget.prototype.getNodeById = function(node_id) {
    return this.tree.getNodeById(node_id);
  };

  JqTreeWidget.prototype.getNodeByName = function(name) {
    return this.tree.getNodeByName(name);
  };

  JqTreeWidget.prototype.getNodesByProperty = function(key, value) {
    return this.tree.getNodesByProperty(key, value);
  };

  JqTreeWidget.prototype.getNodeByHtmlElement = function(element) {
    return this._getNode($(element));
  };

  JqTreeWidget.prototype.getNodeByCallback = function(callback) {
    return this.tree.getNodeByCallback(callback);
  };

  JqTreeWidget.prototype.openNode = function(node, slide_param, on_finished_param) {
    var on_finished, parseParams, ref1, slide;
    if (slide_param == null) {
      slide_param = null;
    }
    if (on_finished_param == null) {
      on_finished_param = null;
    }
    parseParams = (function(_this) {
      return function() {
        var on_finished, slide;
        if (isFunction(slide_param)) {
          on_finished = slide_param;
          slide = null;
        } else {
          slide = slide_param;
          on_finished = on_finished_param;
        }
        if (slide === null) {
          slide = _this.options.slide;
        }
        return [slide, on_finished];
      };
    })(this);
    ref1 = parseParams(), slide = ref1[0], on_finished = ref1[1];
    if (node) {
      this._openNode(node, slide, on_finished);
    }
    return this.element;
  };

  JqTreeWidget.prototype._openNode = function(node, slide, on_finished) {
    var doOpenNode, parent;
    if (slide == null) {
      slide = true;
    }
    doOpenNode = (function(_this) {
      return function(_node, _slide, _on_finished) {
        var folder_element;
        folder_element = new FolderElement(_node, _this);
        return folder_element.open(_on_finished, _slide);
      };
    })(this);
    if (node.isFolder()) {
      if (node.load_on_demand) {
        return this._loadFolderOnDemand(node, slide, on_finished);
      } else {
        parent = node.parent;
        while (parent) {
          if (parent.parent) {
            doOpenNode(parent, false, null);
          }
          parent = parent.parent;
        }
        doOpenNode(node, slide, on_finished);
        return this._saveState();
      }
    }
  };

  JqTreeWidget.prototype._loadFolderOnDemand = function(node, slide, on_finished) {
    if (slide == null) {
      slide = true;
    }
    node.is_loading = true;
    return this._loadDataFromUrl(null, node, (function(_this) {
      return function() {
        return _this._openNode(node, slide, on_finished);
      };
    })(this));
  };

  JqTreeWidget.prototype.closeNode = function(node, slide) {
    if (slide == null) {
      slide = null;
    }
    if (slide === null) {
      slide = this.options.slide;
    }
    if (node.isFolder()) {
      new FolderElement(node, this).close(slide);
      this._saveState();
    }
    return this.element;
  };

  JqTreeWidget.prototype.isDragging = function() {
    if (this.dnd_handler) {
      return this.dnd_handler.is_dragging;
    } else {
      return false;
    }
  };

  JqTreeWidget.prototype.refreshHitAreas = function() {
    this.dnd_handler.refresh();
    return this.element;
  };

  JqTreeWidget.prototype.addNodeAfter = function(new_node_info, existing_node) {
    var new_node;
    new_node = existing_node.addAfter(new_node_info);
    this._refreshElements(existing_node.parent);
    return new_node;
  };

  JqTreeWidget.prototype.addNodeBefore = function(new_node_info, existing_node) {
    var new_node;
    new_node = existing_node.addBefore(new_node_info);
    this._refreshElements(existing_node.parent);
    return new_node;
  };

  JqTreeWidget.prototype.addParentNode = function(new_node_info, existing_node) {
    var new_node;
    new_node = existing_node.addParent(new_node_info);
    this._refreshElements(new_node.parent);
    return new_node;
  };

  JqTreeWidget.prototype.removeNode = function(node) {
    var parent;
    parent = node.parent;
    if (parent) {
      this.select_node_handler.removeFromSelection(node, true);
      node.remove();
      this._refreshElements(parent);
    }
    return this.element;
  };

  JqTreeWidget.prototype.appendNode = function(new_node_info, parent_node) {
    var node;
    parent_node = parent_node || this.tree;
    node = parent_node.append(new_node_info);
    this._refreshElements(parent_node);
    return node;
  };

  JqTreeWidget.prototype.prependNode = function(new_node_info, parent_node) {
    var node;
    if (!parent_node) {
      parent_node = this.tree;
    }
    node = parent_node.prepend(new_node_info);
    this._refreshElements(parent_node);
    return node;
  };

  JqTreeWidget.prototype.updateNode = function(node, data) {
    var id_is_changed;
    id_is_changed = data.id && data.id !== node.id;
    if (id_is_changed) {
      this.tree.removeNodeFromIndex(node);
    }
    node.setData(data);
    if (id_is_changed) {
      this.tree.addNodeToIndex(node);
    }
    if (typeof data === 'object' && data.children) {
      node.removeChildren();
      if (data.children.length) {
        node.loadFromData(data.children);
      }
    }
    this.renderer.renderFromNode(node);
    this._selectCurrentNode();
    return this.element;
  };

  JqTreeWidget.prototype.moveNode = function(node, target_node, position) {
    var position_index;
    position_index = Position.nameToIndex(position);
    this.tree.moveNode(node, target_node, position_index);
    this._refreshElements();
    return this.element;
  };

  JqTreeWidget.prototype.getStateFromStorage = function() {
    return this.save_state_handler.getStateFromStorage();
  };

  JqTreeWidget.prototype.addToSelection = function(node) {
    if (node) {
      this.select_node_handler.addToSelection(node);
      this._getNodeElementForNode(node).select();
      this._saveState();
    }
    return this.element;
  };

  JqTreeWidget.prototype.getSelectedNodes = function() {
    return this.select_node_handler.getSelectedNodes();
  };

  JqTreeWidget.prototype.isNodeSelected = function(node) {
    return this.select_node_handler.isNodeSelected(node);
  };

  JqTreeWidget.prototype.removeFromSelection = function(node) {
    this.select_node_handler.removeFromSelection(node);
    this._getNodeElementForNode(node).deselect();
    this._saveState();
    return this.element;
  };

  JqTreeWidget.prototype.scrollToNode = function(node) {
    var $element, top;
    $element = $(node.element);
    top = $element.offset().top - this.$el.offset().top;
    this.scroll_handler.scrollTo(top);
    return this.element;
  };

  JqTreeWidget.prototype.getState = function() {
    return this.save_state_handler.getState();
  };

  JqTreeWidget.prototype.setState = function(state) {
    this.save_state_handler.setInitialState(state);
    this._refreshElements();
    return this.element;
  };

  JqTreeWidget.prototype.setOption = function(option, value) {
    this.options[option] = value;
    return this.element;
  };

  JqTreeWidget.prototype.moveDown = function() {
    if (this.key_handler) {
      this.key_handler.moveDown();
    }
    return this.element;
  };

  JqTreeWidget.prototype.moveUp = function() {
    if (this.key_handler) {
      this.key_handler.moveUp();
    }
    return this.element;
  };

  JqTreeWidget.prototype.getVersion = function() {
    return __version__;
  };

  JqTreeWidget.prototype._init = function() {
    JqTreeWidget.__super__._init.call(this);
    this.element = this.$el;
    this.mouse_delay = 300;
    this.is_initialized = false;
    this.options.rtl = this._getRtlOption();
    if (!this.options.closedIcon) {
      this.options.closedIcon = this._getDefaultClosedIcon();
    }
    this.renderer = new ElementsRenderer(this);
    if (SaveStateHandler != null) {
      this.save_state_handler = new SaveStateHandler(this);
    } else {
      this.options.saveState = false;
    }
    if (SelectNodeHandler != null) {
      this.select_node_handler = new SelectNodeHandler(this);
    }
    if (DragAndDropHandler != null) {
      this.dnd_handler = new DragAndDropHandler(this);
    } else {
      this.options.dragAndDrop = false;
    }
    if (ScrollHandler != null) {
      this.scroll_handler = new ScrollHandler(this);
    }
    if ((KeyHandler != null) && (SelectNodeHandler != null)) {
      this.key_handler = new KeyHandler(this);
    }
    this._initData();
    this.element.click($.proxy(this._click, this));
    this.element.dblclick($.proxy(this._dblclick, this));
    if (this.options.useContextMenu) {
      return this.element.bind('contextmenu', $.proxy(this._contextmenu, this));
    }
  };

  JqTreeWidget.prototype._deinit = function() {
    this.element.empty();
    this.element.unbind();
    if (this.key_handler) {
      this.key_handler.deinit();
    }
    this.tree = null;
    return JqTreeWidget.__super__._deinit.call(this);
  };

  JqTreeWidget.prototype._initData = function() {
    var data_url;
    if (this.options.data) {
      return this._loadData(this.options.data);
    } else {
      data_url = this._getDataUrlInfo();
      if (data_url) {
        return this._loadDataFromUrl();
      } else {
        return this._loadData([]);
      }
    }
  };

  JqTreeWidget.prototype._getDataUrlInfo = function(node) {
    var data_url, getUrlFromString;
    data_url = this.options.dataUrl || this.element.data('url');
    getUrlFromString = (function(_this) {
      return function() {
        var data, selected_node_id, url_info;
        url_info = {
          url: data_url
        };
        if (node && node.id) {
          data = {
            node: node.id
          };
          url_info['data'] = data;
        } else {
          selected_node_id = _this._getNodeIdToBeSelected();
          if (selected_node_id) {
            data = {
              selected_node: selected_node_id
            };
            url_info['data'] = data;
          }
        }
        return url_info;
      };
    })(this);
    if ($.isFunction(data_url)) {
      return data_url(node);
    } else if ($.type(data_url) === 'string') {
      return getUrlFromString();
    } else {
      return data_url;
    }
  };

  JqTreeWidget.prototype._getNodeIdToBeSelected = function() {
    if (this.options.saveState) {
      return this.save_state_handler.getNodeIdToBeSelected();
    } else {
      return null;
    }
  };

  JqTreeWidget.prototype._initTree = function(data) {
    var doInit, must_load_on_demand;
    doInit = (function(_this) {
      return function() {
        if (!_this.is_initialized) {
          _this.is_initialized = true;
          return _this._triggerEvent('tree.init');
        }
      };
    })(this);
    this.tree = new this.options.nodeClass(null, true, this.options.nodeClass);
    if (this.select_node_handler) {
      this.select_node_handler.clear();
    }
    this.tree.loadFromData(data);
    must_load_on_demand = this._setInitialState();
    this._refreshElements();
    if (!must_load_on_demand) {
      return doInit();
    } else {
      return this._setInitialStateOnDemand(doInit);
    }
  };

  JqTreeWidget.prototype._setInitialState = function() {
    var autoOpenNodes, is_restored, must_load_on_demand, ref1, restoreState;
    restoreState = (function(_this) {
      return function() {
        var must_load_on_demand, state;
        if (!(_this.options.saveState && _this.save_state_handler)) {
          return [false, false];
        } else {
          state = _this.save_state_handler.getStateFromStorage();
          if (!state) {
            return [false, false];
          } else {
            must_load_on_demand = _this.save_state_handler.setInitialState(state);
            return [true, must_load_on_demand];
          }
        }
      };
    })(this);
    autoOpenNodes = (function(_this) {
      return function() {
        var max_level, must_load_on_demand;
        if (_this.options.autoOpen === false) {
          return false;
        }
        max_level = _this._getAutoOpenMaxLevel();
        must_load_on_demand = false;
        _this.tree.iterate(function(node, level) {
          if (node.load_on_demand) {
            must_load_on_demand = true;
            return false;
          } else if (!node.hasChildren()) {
            return false;
          } else {
            node.is_open = true;
            return level !== max_level;
          }
        });
        return must_load_on_demand;
      };
    })(this);
    ref1 = restoreState(), is_restored = ref1[0], must_load_on_demand = ref1[1];
    if (!is_restored) {
      must_load_on_demand = autoOpenNodes();
    }
    return must_load_on_demand;
  };

  JqTreeWidget.prototype._setInitialStateOnDemand = function(cb_finished) {
    var autoOpenNodes, restoreState;
    restoreState = (function(_this) {
      return function() {
        var state;
        if (!(_this.options.saveState && _this.save_state_handler)) {
          return false;
        } else {
          state = _this.save_state_handler.getStateFromStorage();
          if (!state) {
            return false;
          } else {
            _this.save_state_handler.setInitialStateOnDemand(state, cb_finished);
            return true;
          }
        }
      };
    })(this);
    autoOpenNodes = (function(_this) {
      return function() {
        var loadAndOpenNode, loading_count, max_level, openNodes;
        max_level = _this._getAutoOpenMaxLevel();
        loading_count = 0;
        loadAndOpenNode = function(node) {
          loading_count += 1;
          return _this._openNode(node, false, function() {
            loading_count -= 1;
            return openNodes();
          });
        };
        openNodes = function() {
          _this.tree.iterate(function(node, level) {
            if (node.load_on_demand) {
              if (!node.is_loading) {
                loadAndOpenNode(node);
              }
              return false;
            } else {
              _this._openNode(node, false);
              return level !== max_level;
            }
          });
          if (loading_count === 0) {
            return cb_finished();
          }
        };
        return openNodes();
      };
    })(this);
    if (!restoreState()) {
      return autoOpenNodes();
    }
  };

  JqTreeWidget.prototype._getAutoOpenMaxLevel = function() {
    if (this.options.autoOpen === true) {
      return -1;
    } else {
      return parseInt(this.options.autoOpen);
    }
  };


  /*
  Redraw the tree or part of the tree.
   * from_node: redraw this subtree
   */

  JqTreeWidget.prototype._refreshElements = function(from_node) {
    if (from_node == null) {
      from_node = null;
    }
    this.renderer.render(from_node);
    return this._triggerEvent('tree.refresh');
  };

  JqTreeWidget.prototype._click = function(e) {
    var click_target, event, node;
    click_target = this._getClickTarget(e.target);
    if (click_target) {
      if (click_target.type === 'button') {
        this.toggle(click_target.node, this.options.slide);
        e.preventDefault();
        return e.stopPropagation();
      } else if (click_target.type === 'label') {
        node = click_target.node;
        event = this._triggerEvent('tree.click', {
          node: node,
          click_event: e
        });
        if (!event.isDefaultPrevented()) {
          return this._selectNode(node, true);
        }
      }
    }
  };

  JqTreeWidget.prototype._dblclick = function(e) {
    var click_target;
    click_target = this._getClickTarget(e.target);
    if (click_target && click_target.type === 'label') {
      return this._triggerEvent('tree.dblclick', {
        node: click_target.node,
        click_event: e
      });
    }
  };

  JqTreeWidget.prototype._getClickTarget = function(element) {
    var $button, $el, $target, node;
    $target = $(element);
    $button = $target.closest('.jqtree-toggler');
    if ($button.length) {
      node = this._getNode($button);
      if (node) {
        return {
          type: 'button',
          node: node
        };
      }
    } else {
      $el = $target.closest('.jqtree-element');
      if ($el.length) {
        node = this._getNode($el);
        if (node) {
          return {
            type: 'label',
            node: node
          };
        }
      }
    }
    return null;
  };

  JqTreeWidget.prototype._getNode = function($element) {
    var $li;
    $li = $element.closest('li.jqtree_common');
    if ($li.length === 0) {
      return null;
    } else {
      return $li.data('node');
    }
  };

  JqTreeWidget.prototype._getNodeElementForNode = function(node) {
    if (node.isFolder()) {
      return new FolderElement(node, this);
    } else {
      return new NodeElement(node, this);
    }
  };

  JqTreeWidget.prototype._getNodeElement = function($element) {
    var node;
    node = this._getNode($element);
    if (node) {
      return this._getNodeElementForNode(node);
    } else {
      return null;
    }
  };

  JqTreeWidget.prototype._contextmenu = function(e) {
    var $div, node;
    $div = $(e.target).closest('ul.jqtree-tree .jqtree-element');
    if ($div.length) {
      node = this._getNode($div);
      if (node) {
        e.preventDefault();
        e.stopPropagation();
        this._triggerEvent('tree.contextmenu', {
          node: node,
          click_event: e
        });
        return false;
      }
    }
  };

  JqTreeWidget.prototype._saveState = function() {
    if (this.options.saveState) {
      return this.save_state_handler.saveState();
    }
  };

  JqTreeWidget.prototype._mouseCapture = function(position_info) {
    if (this.options.dragAndDrop) {
      return this.dnd_handler.mouseCapture(position_info);
    } else {
      return false;
    }
  };

  JqTreeWidget.prototype._mouseStart = function(position_info) {
    if (this.options.dragAndDrop) {
      return this.dnd_handler.mouseStart(position_info);
    } else {
      return false;
    }
  };

  JqTreeWidget.prototype._mouseDrag = function(position_info) {
    var result;
    if (this.options.dragAndDrop) {
      result = this.dnd_handler.mouseDrag(position_info);
      if (this.scroll_handler) {
        this.scroll_handler.checkScrolling();
      }
      return result;
    } else {
      return false;
    }
  };

  JqTreeWidget.prototype._mouseStop = function(position_info) {
    if (this.options.dragAndDrop) {
      return this.dnd_handler.mouseStop(position_info);
    } else {
      return false;
    }
  };

  JqTreeWidget.prototype._triggerEvent = function(event_name, values) {
    var event;
    event = $.Event(event_name);
    $.extend(event, values);
    this.element.trigger(event);
    return event;
  };

  JqTreeWidget.prototype.testGenerateHitAreas = function(moving_node) {
    this.dnd_handler.current_item = this._getNodeElementForNode(moving_node);
    this.dnd_handler.generateHitAreas();
    return this.dnd_handler.hit_areas;
  };

  JqTreeWidget.prototype._selectCurrentNode = function() {
    var node, node_element;
    node = this.getSelectedNode();
    if (node) {
      node_element = this._getNodeElementForNode(node);
      if (node_element) {
        return node_element.select();
      }
    }
  };

  JqTreeWidget.prototype._deselectCurrentNode = function() {
    var node;
    node = this.getSelectedNode();
    if (node) {
      return this.removeFromSelection(node);
    }
  };

  JqTreeWidget.prototype._getDefaultClosedIcon = function() {
    if (this.options.rtl) {
      return '&#x25c0;';
    } else {
      return '&#x25ba;';
    }
  };

  JqTreeWidget.prototype._getRtlOption = function() {
    var data_rtl;
    if (this.options.rtl !== null) {
      return this.options.rtl;
    } else {
      data_rtl = this.element.data('rtl');
      if ((data_rtl != null) && data_rtl !== false) {
        return true;
      } else {
        return false;
      }
    }
  };

  JqTreeWidget.prototype._notifyLoading = function(is_loading, node, $el) {
    if (this.options.onLoading) {
      return this.options.onLoading(is_loading, node, $el);
    }
  };

  return JqTreeWidget;

})(MouseWidget);

JqTreeWidget.getModule = function(name) {
  var modules;
  modules = {
    'node': node_module,
    'util': util_module,
    'drag_and_drop_handler': drag_and_drop_handler
  };
  return modules[name];
};

SimpleWidget.register(JqTreeWidget, 'tree');