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* jQuery OrgChart Plugin\n * https://github.com/dabeng/OrgChart\n *\n * Copyright 2016, dabeng\n * https://github.com/dabeng\n *\n * Licensed under the MIT license:\n * http://www.opensource.org/licenses/MIT\n */\n'use strict';\n\n(function (factory) {\n  if (typeof module === 'object' && typeof module.exports === 'object') {\n    factory(require('jquery'), window, document);\n  } else {\n    factory(jQuery, window, document);\n  }\n}(function ($, window, document, undefined) {\n  var OrgChart = function (elem, opts) {\n    this.$chartContainer = $(elem);\n    this.opts = opts;\n    this.defaultOptions = {\n      'nodeTitle': 'name',\n      'nodeId': 'id',\n      'toggleSiblingsResp': false,\n      'visibleLevel': 999,\n      'chartClass': '',\n      'exportButton': false,\n      'exportButtonName': 'Export',\n      'exportFilename': 'OrgChart',\n      'exportFileextension': 'png',\n      'parentNodeSymbol': 'oci-leader',\n      'draggable': false,\n      'direction': 't2b',\n      'pan': false,\n      'zoom': false,\n      'zoominLimit': 7,\n      'zoomoutLimit': 0.5\n    };\n  };\n  //\n  OrgChart.prototype = {\n    //\n    init: function (opts) {\n      var that = this;\n      this.options = $.extend({}, this.defaultOptions, this.opts, opts);\n      // build the org-chart\n      var $chartContainer = this.$chartContainer;\n      if (this.$chart) {\n        this.$chart.remove();\n      }\n      var data = this.options.data;\n      var $chart = this.$chart = $('<div>', {\n        'data': { 'options': this.options },\n        'class': 'orgchart' + (this.options.chartClass !== '' ? ' ' + this.options.chartClass : '') + (this.options.direction !== 't2b' ? ' ' + this.options.direction : ''),\n        'click': function(event) {\n          if (!$(event.target).closest('.node').length) {\n            $chart.find('.node.focused').removeClass('focused');\n          }\n        }\n      });\n      if (typeof MutationObserver !== 'undefined') {\n        this.triggerInitEvent();\n      }\n      var $root = $chart.append($('<ul class=\"nodes\"><li class=\"hierarchy\"></li></ul>')).find('.hierarchy');\n      if ($.type(data) === 'object') {\n        if (data instanceof $) { // ul datasource\n          this.buildHierarchy($root, this.buildJsonDS(data.children()), 0, this.options);\n        } else { // local json datasource\n          this.buildHierarchy($root, this.options.ajaxURL ? data : this.attachRel(data, '00'));\n        }\n      } else {\n        $chart.append('<i class=\"oci oci-spinner spinner\"></i>');\n        $.ajax({\n          'url': data,\n          'dataType': 'json'\n        })\n        .done(function(data, textStatus, jqXHR) {\n          that.buildHierarchy($root, that.options.ajaxURL ? data : that.attachRel(data, '00'), 0, that.options);\n        })\n        .fail(function(jqXHR, textStatus, errorThrown) {\n          console.log(errorThrown);\n        })\n        .always(function() {\n          $chart.children('.spinner').remove();\n        });\n      }\n      $chartContainer.append($chart);\n\n      // append the export button\n      if (this.options.exportButton && !$('.oc-export-btn').length) {\n        this.attachExportButton();\n      }\n\n      if (this.options.pan) {\n        this.bindPan();\n      }\n\n      if (this.options.zoom) {\n        this.bindZoom();\n      }\n\n      return this;\n    },\n    //\n    triggerInitEvent: function () {\n      var that = this;\n      var mo = new MutationObserver(function (mutations) {\n        mo.disconnect();\n        initTime:\n        for (var i = 0; i < mutations.length; i++) {\n          for (var j = 0; j < mutations[i].addedNodes.length; j++) {\n            if (mutations[i].addedNodes[j].classList.contains('orgchart')) {\n              if (that.options.initCompleted && typeof that.options.initCompleted === 'function') {\n                that.options.initCompleted(that.$chart);\n              }\n              var initEvent = $.Event('init.orgchart');\n              that.$chart.trigger(initEvent);\n              break initTime;\n            }\n          }\n        }\n      });\n      mo.observe(this.$chartContainer[0], { childList: true });\n    },\n    triggerLoadEvent: function ($target, rel) {\n      var initEvent = $.Event('load-' + rel +'.orgchart');\n      $target.trigger(initEvent);\n    },\n    triggerShowEvent: function ($target, rel) {\n      var initEvent = $.Event('show-' + rel + '.orgchart');\n      $target.trigger(initEvent);\n    },\n    triggerHideEvent: function ($target, rel) {\n      var initEvent = $.Event('hide-' + rel + '.orgchart');\n      $target.trigger(initEvent);\n    },\n    // add export button for orgchart\n    attachExportButton: function () {\n      var that = this;\n      var $exportBtn = $('<button>', {\n        'class': 'oc-export-btn',\n        'text': this.options.exportButtonName,\n        'click': function(e) {\n          e.preventDefault();\n          that.export();\n        }\n      });\n      this.$chartContainer.after($exportBtn);\n    },\n    setOptions: function (opts, val) {\n      if (typeof opts === 'string') {\n        if (opts === 'pan') {\n          if (val) {\n            this.bindPan();\n          } else {\n            this.unbindPan();\n          }\n        }\n        if (opts === 'zoom') {\n          if (val) {\n            this.bindZoom();\n          } else {\n            this.unbindZoom();\n          }\n        }\n      }\n      if (typeof opts === 'object') {\n        if (opts.data) {\n          this.init(opts);\n        } else {\n          if (typeof opts.pan !== 'undefined') {\n            if (opts.pan) {\n              this.bindPan();\n            } else {\n              this.unbindPan();\n            }\n          }\n          if (typeof opts.zoom !== 'undefined') {\n            if (opts.zoom) {\n              this.bindZoom();\n            } else {\n              this.unbindZoom();\n            }\n          }\n        }\n      }\n\n      return this;\n    },\n    //\n    panStartHandler: function (e) {\n      var $chart = $(e.delegateTarget);\n      if ($(e.target).closest('.node').length || (e.touches && e.touches.length > 1)) {\n        $chart.data('panning', false);\n        return;\n      } else {\n        $chart.css('cursor', 'move').data('panning', true);\n      }\n      var lastX = 0;\n      var lastY = 0;\n      var lastTf = $chart.css('transform');\n      if (lastTf !== 'none') {\n        var temp = lastTf.split(',');\n        if (lastTf.indexOf('3d') === -1) {\n          lastX = parseInt(temp[4]);\n          lastY = parseInt(temp[5]);\n        } else {\n          lastX = parseInt(temp[12]);\n          lastY = parseInt(temp[13]);\n        }\n      }\n      var startX = 0;\n      var startY = 0;\n      if (!e.targetTouches) { // pand on desktop\n        startX = e.pageX - lastX;\n        startY = e.pageY - lastY;\n      } else if (e.targetTouches.length === 1) { // pan on mobile device\n        startX = e.targetTouches[0].pageX - lastX;\n        startY = e.targetTouches[0].pageY - lastY;\n      } else if (e.targetTouches.length > 1) {\n        return;\n      }\n      $chart.on('mousemove touchmove',function(e) {\n        if (!$chart.data('panning')) {\n          return;\n        }\n        var newX = 0;\n        var newY = 0;\n        if (!e.targetTouches) { // pand on desktop\n          newX = e.pageX - startX;\n          newY = e.pageY - startY;\n        } else if (e.targetTouches.length === 1) { // pan on mobile device\n          newX = e.targetTouches[0].pageX - startX;\n          newY = e.targetTouches[0].pageY - startY;\n        } else if (e.targetTouches.length > 1) {\n          return;\n        }\n        var lastTf = $chart.css('transform');\n        if (lastTf === 'none') {\n          if (lastTf.indexOf('3d') === -1) {\n            $chart.css('transform', 'matrix(1, 0, 0, 1, ' + newX + ', ' + newY + ')');\n          } else {\n            $chart.css('transform', 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, ' + newX + ', ' + newY + ', 0, 1)');\n          }\n        } else {\n          var matrix = lastTf.split(',');\n          if (lastTf.indexOf('3d') === -1) {\n            matrix[4] = ' ' + newX;\n            matrix[5] = ' ' + newY + ')';\n          } else {\n            matrix[12] = ' ' + newX;\n            matrix[13] = ' ' + newY;\n          }\n          $chart.css('transform', matrix.join(','));\n        }\n      });\n    },\n    //\n    panEndHandler: function (e) {\n      if (e.data.chart.data('panning')) {\n        e.data.chart.data('panning', false).css('cursor', 'default').off('mousemove');\n      }\n    },\n    //\n    bindPan: function () {\n      this.$chartContainer.css('overflow', 'hidden');\n      this.$chart.on('mousedown touchstart', this.panStartHandler);\n      $(document).on('mouseup touchend', { 'chart': this.$chart }, this.panEndHandler);\n    },\n    //\n    unbindPan: function () {\n      this.$chartContainer.css('overflow', 'auto');\n      this.$chart.off('mousedown touchstart', this.panStartHandler);\n      $(document).off('mouseup touchend', this.panEndHandler);\n    },\n    //\n    zoomWheelHandler: function (e) {\n      var oc = e.data.oc;\n      e.preventDefault();\n      var newScale  = 1 + (e.originalEvent.deltaY > 0 ? -0.2 : 0.2);\n      oc.setChartScale(oc.$chart, newScale);\n    },\n    //\n    zoomStartHandler: function (e) {\n      if(e.touches && e.touches.length === 2) {\n        var oc = e.data.oc;\n        oc.$chart.data('pinching', true);\n        var dist = oc.getPinchDist(e);\n        oc.$chart.data('pinchDistStart', dist);\n      }\n    },\n    zoomingHandler: function (e) {\n      var oc = e.data.oc;\n      if(oc.$chart.data('pinching')) {\n        var dist = oc.getPinchDist(e);\n        oc.$chart.data('pinchDistEnd', dist);\n      }\n    },\n    zoomEndHandler: function (e) {\n      var oc = e.data.oc;\n      if(oc.$chart.data('pinching')) {\n        oc.$chart.data('pinching', false);\n        var diff = oc.$chart.data('pinchDistEnd') - oc.$chart.data('pinchDistStart');\n        if (diff > 0) {\n          oc.setChartScale(oc.$chart, 1.2);\n        } else if (diff < 0) {\n          oc.setChartScale(oc.$chart, 0.8);\n        }\n      }\n    },\n    //\n    bindZoom: function () {\n      this.$chartContainer.on('wheel', { 'oc': this }, this.zoomWheelHandler);\n      this.$chartContainer.on('touchstart', { 'oc': this }, this.zoomStartHandler);\n      $(document).on('touchmove', { 'oc': this }, this.zoomingHandler);\n      $(document).on('touchend', { 'oc': this }, this.zoomEndHandler);\n    },\n    unbindZoom: function () {\n      this.$chartContainer.off('wheel', this.zoomWheelHandler);\n      this.$chartContainer.off('touchstart', this.zoomStartHandler);\n      $(document).off('touchmove', this.zoomingHandler);\n      $(document).off('touchend', this.zoomEndHandler);\n    },\n    //\n    getPinchDist: function (e) {\n      return Math.sqrt((e.touches[0].clientX - e.touches[1].clientX) * (e.touches[0].clientX - e.touches[1].clientX) +\n      (e.touches[0].clientY - e.touches[1].clientY) * (e.touches[0].clientY - e.touches[1].clientY));\n    },\n    //\n    setChartScale: function ($chart, newScale) {\n      var opts = $chart.data('options');\n      var lastTf = $chart.css('transform');\n      var matrix = '';\n      var targetScale = 1;\n      if (lastTf === 'none') {\n        $chart.css('transform', 'scale(' + newScale + ',' + newScale + ')');\n      } else {\n        matrix = lastTf.split(',');\n        if (lastTf.indexOf('3d') === -1) {\n          targetScale = Math.abs(window.parseFloat(matrix[3]) * newScale);\n          if (targetScale > opts.zoomoutLimit && targetScale < opts.zoominLimit) {\n            $chart.css('transform', lastTf + ' scale(' + newScale + ',' + newScale + ')');\n          }\n        } else {\n          targetScale = Math.abs(window.parseFloat(matrix[1]) * newScale);\n          if (targetScale > opts.zoomoutLimit && targetScale < opts.zoominLimit) {\n            $chart.css('transform', lastTf + ' scale3d(' + newScale + ',' + newScale + ', 1)');\n          }\n        }\n      }\n    },\n    //\n    buildJsonDS: function ($li) {\n      var that = this;\n      var subObj = {\n        'name': $li.contents().eq(0).text().trim(),\n        'relationship': ($li.parent().parent().is('li') ? '1': '0') + ($li.siblings('li').length ? 1: 0) + ($li.children('ul').length ? 1 : 0)\n      };\n      $.each($li.data(), function(key, value) {\n         subObj[key] = value;\n      });\n      $li.children('ul').children().each(function() {\n        if (!subObj.children) { subObj.children = []; }\n        subObj.children.push(that.buildJsonDS($(this)));\n      });\n      return subObj;\n    },\n    //\n    attachRel: function (data, flags) {\n      var that = this;\n      data.relationship = flags + (data.children && data.children.length > 0 ? 1 : 0);\n      if (data.children) {\n        data.children.forEach(function(item) {\n          that.attachRel(item, '1' + (data.children.length > 1 ? 1 : 0));\n        });\n      }\n      return data;\n    },\n    //\n    loopChart: function ($chart, includeNodeData) {\n      includeNodeData = (includeNodeData !== null && includeNodeData !== undefined) ? includeNodeData : false;\n      var that = this;\n      var $node = $chart.find('.node:first');\n      var subObj = { 'id': $node[0].id };\n      if (includeNodeData) {\n        $.each($node.data('nodeData'), function (key, value) {\n          subObj[key] = value;\n        });\n      }\n      $node.siblings('.nodes').children().each(function() {\n        if (!subObj.children) { subObj.children = []; }\n        subObj.children.push(that.loopChart($(this), includeNodeData));\n      });\n      return subObj;\n    },\n    //\n    getHierarchy: function (includeNodeData) {\n      includeNodeData = (includeNodeData !== null && includeNodeData !== undefined) ? includeNodeData : false;\n      if (typeof this.$chart === 'undefined') {\n        return 'Error: orgchart does not exist'\n      } else {\n        if (!this.$chart.find('.node').length) {\n          return 'Error: nodes do not exist'\n        } else {\n          var valid = true;\n          this.$chart.find('.node').each(function () {\n            if (!this.id) {\n              valid = false;\n              return false;\n            }\n          });\n          if (!valid) {\n            return 'Error: All nodes of orghcart to be exported must have data-id attribute!';\n          }\n        }\n      }\n      return this.loopChart(this.$chart, includeNodeData);\n    },\n    // detect the exist/display state of related node\n    getNodeState: function ($node, relation) {\n      var $target = {};\n      var isVerticalNode = !!$node.closest('vertical').length;\n      var relation = relation || 'self';\n      if (relation === 'parent') {\n        if (isVerticalNode) {\n          $target = $node.closest('ul').parents('ul');\n          if (!$target.length) {\n            $target = $node.closest('.nodes');\n            if (!$target.length) {\n              $target = $node.closest('.vertical').siblings(':first');\n            }\n          }\n        } else {\n          $target = $node.closest('.nodes').siblings('.node');\n        }\n        if ($target.length) {\n          if ($target.is('.hidden') || (!$target.is('.hidden') && $target.closest('.nodes').is('.hidden')) || (!$target.is('.hidden') && $target.closest('.vertical').is('.hidden'))) {\n            return { 'exist': true, 'visible': false };\n          }\n          return { 'exist': true, 'visible': true };\n        }\n      } else if (relation === 'children') {\n        $target = isVerticalNode ? $node.parent().children('ul') : $node.siblings('.nodes');\n        if ($target.length) {\n          if (!$target.is('.hidden')) {\n            return { 'exist': true, 'visible': true };\n          }\n          return { 'exist': true, 'visible': false };\n        }\n      } else if (relation === 'siblings') {\n        $target = isVerticalNode ? $node.closest('ul') : $node.parent().siblings();\n        if ($target.length && (!isVerticalNode || $target.children('li').length > 1)) {\n          if (!$target.is('.hidden') && !$target.parent().is('.hidden') && (!isVerticalNode || !$target.closest('.vertical').is('.hidden'))) {\n            return { 'exist': true, 'visible': true };\n          }\n          return { 'exist': true, 'visible': false };\n        }\n      } else {\n        $target = $node;\n        if ($target.length) {\n          if (!(($target.closest('.nodes').length && $target.closest('.nodes').is('.hidden')) ||\n            ($target.closest('.hierarchy').length && $target.closest('.hierarchy').is('.hidden')) ||\n            ($target.closest('.vertical').length && ($target.closest('.nodes').is('.hidden') || $target.closest('.vertical').is('.hidden')))\n          )) {\n            return { 'exist': true, 'visible': true };\n          }\n          return { 'exist': true, 'visible': false };\n        }\n      }\n      return { 'exist': false, 'visible': false };\n    },\n    // find the related nodes\n    getRelatedNodes: function ($node, relation) {\n      if (!$node || !($node instanceof $) || !$node.is('.node')) {\n        return $();\n      }\n      if (relation === 'parent') {\n        return $node.closest('.nodes').siblings('.node');\n      } else if (relation === 'children') {\n        return $node.siblings('.nodes').children('.hierarchy').find('.node:first');\n      } else if (relation === 'siblings') {\n        return $node.closest('.hierarchy').siblings().find('.node:first');\n      } else {\n        return $();\n      }\n    },\n    hideParentEnd: function (event) {\n      $(event.target).removeClass('sliding');\n      event.data.parent.addClass('hidden');\n    },\n    // recursively hide the ancestor node and sibling nodes of the specified node\n    hideParent: function ($node) {\n      var $parent = $node.closest('.nodes').siblings('.node');\n      if ($parent.find('.spinner').length) {\n        $node.closest('.orgchart').data('inAjax', false);\n      }\n      // hide the sibling nodes\n      if (this.getNodeState($node, 'siblings').visible) {\n        this.hideSiblings($node);\n      }\n      // hide the lines\n      $node.parent().addClass('isAncestorsCollapsed');\n      // hide the superior nodes with transition\n      if (this.getNodeState($parent).visible) {\n        $parent.addClass('sliding slide-down').one('transitionend', { 'parent': $parent }, this.hideParentEnd);\n      }\n      // if the current node has the parent node, hide it recursively\n      if (this.getNodeState($parent, 'parent').visible) {\n        this.hideParent($parent);\n      }\n    },\n    showParentEnd: function (event) {\n      var $node = event.data.node;\n      $(event.target).removeClass('sliding');\n      if (this.isInAction($node)) {\n        this.switchVerticalArrow($node.children('.topEdge'));\n      }\n    },\n    // show the parent node of the specified node\n    showParent: function ($node) {\n      // just show only one superior level\n      var $parent = $node.closest('.nodes').siblings('.node').removeClass('hidden');\n      // just show only one line\n      $node.closest('.hierarchy').removeClass('isAncestorsCollapsed');\n      // show parent node with animation\n      this.repaint($parent[0]);\n      $parent.addClass('sliding').removeClass('slide-down').one('transitionend', { 'node': $node }, this.showParentEnd.bind(this));\n    },\n    stopAjax: function ($nodeLevel) {\n      if ($nodeLevel.find('.spinner').length) {\n        $nodeLevel.closest('.orgchart').data('inAjax', false);\n      }\n    },\n    isVisibleNode: function (index, elem) {\n      return this.getNodeState($(elem)).visible;\n    },\n    // do some necessary cleanup tasks when hide animation is finished\n    hideChildrenEnd: function (event) {\n      var $node = event.data.node;\n      event.data.animatedNodes.removeClass('sliding');\n      event.data.animatedNodes.closest('.nodes').addClass('hidden');\n      if (this.isInAction($node)) {\n        this.switchVerticalArrow($node.children('.bottomEdge'));\n      }\n    },\n    // recursively hide the descendant nodes of the specified node\n    hideChildren: function ($node) {\n      $node.closest('.hierarchy').addClass('isChildrenCollapsed');\n      var $lowerLevel = $node.siblings('.nodes');\n      this.stopAjax($lowerLevel);\n      var $animatedNodes = $lowerLevel.find('.node').filter(this.isVisibleNode.bind(this));\n      var isVerticalDesc = $lowerLevel.is('.vertical');\n      if (!isVerticalDesc) {\n        $animatedNodes.closest('.hierarchy').addClass('isCollapsedDescendant');\n      }\n      if ($lowerLevel.is('.vertical') || $lowerLevel.find('.vertical').length) {\n        $animatedNodes.find('.oci-minus-square').removeClass('oci-minus-square').addClass('oci-plus-square');\n      }\n      this.repaint($animatedNodes.get(0));\n      $animatedNodes.addClass('sliding slide-up').eq(0).one('transitionend', { 'animatedNodes': $animatedNodes, 'lowerLevel': $lowerLevel, 'node': $node }, this.hideChildrenEnd.bind(this));\n    },\n    //\n    showChildrenEnd: function (event) {\n      var $node = event.data.node;\n      event.data.animatedNodes.removeClass('sliding');\n      if (this.isInAction($node)) {\n        this.switchVerticalArrow($node.children('.bottomEdge'));\n      }\n    },\n    // show the children nodes of the specified node\n    showChildren: function ($node) {\n      var that = this;\n      $node.closest('.hierarchy').removeClass('isChildrenCollapsed');\n      var $levels = $node.siblings('.nodes');\n      var isVerticalDesc = $levels.is('.vertical');\n      var $animatedNodes = isVerticalDesc\n        ? $levels.removeClass('hidden').find('.node').filter(this.isVisibleNode.bind(this))\n        : $levels.removeClass('hidden').children('.hierarchy').find('.node:first').filter(this.isVisibleNode.bind(this));\n      if (!isVerticalDesc) {\n        $animatedNodes.filter(':not(:only-child)').closest('.hierarchy').addClass('isChildrenCollapsed');\n        $animatedNodes.closest('.hierarchy').removeClass('isCollapsedDescendant');\n      }\n      // the two following statements are used to enforce browser to repaint\n      this.repaint($animatedNodes.get(0));\n      $animatedNodes.addClass('sliding').removeClass('slide-up').eq(0).one('transitionend', { 'node': $node, 'animatedNodes': $animatedNodes }, this.showChildrenEnd.bind(this));\n    },\n    //\n    hideSiblingsEnd: function (event) {\n      var $node = event.data.node;\n      var $nodeContainer = event.data.nodeContainer;\n      var direction = event.data.direction;\n      var $siblings = direction ? (direction === 'left' ? $nodeContainer.prevAll(':not(.hidden)') : $nodeContainer.nextAll(':not(.hidden)')) : $nodeContainer.siblings();\n      event.data.animatedNodes.removeClass('sliding');\n      $siblings.find('.node:gt(0)').filter(this.isVisibleNode.bind(this))\n        .removeClass('slide-left slide-right').addClass('slide-up');\n      $siblings.find('.nodes, .vertical').addClass('hidden')\n        .end().addClass('hidden');\n\n      if (this.isInAction($node)) {\n        this.switchHorizontalArrow($node);\n      }\n    },\n    // hide the sibling nodes of the specified node\n    hideSiblings: function ($node, direction) {\n      var that = this;\n      var $nodeContainer = $node.closest('.hierarchy').addClass('isSiblingsCollapsed');\n      if ($nodeContainer.siblings().find('.spinner').length) {\n        $node.closest('.orgchart').data('inAjax', false);\n      }\n      if (direction) {\n        if (direction === 'left') {\n          $nodeContainer.addClass('left-sibs')\n            .prevAll('.isSiblingsCollapsed').removeClass('isSiblingsCollapsed left-sibs').end()\n            .prevAll().addClass('isCollapsedSibling isChildrenCollapsed')\n            .find('.node').filter(this.isVisibleNode.bind(this)).addClass('sliding slide-right');\n        } else {\n          $nodeContainer.addClass('right-sibs')\n            .nextAll('.isSiblingsCollapsed').removeClass('isSiblingsCollapsed right-sibs').end()\n            .nextAll().addClass('isCollapsedSibling isChildrenCollapsed')\n            .find('.node').filter(this.isVisibleNode.bind(this)).addClass('sliding slide-left');\n        }\n      } else {\n        $nodeContainer.prevAll().find('.node').filter(this.isVisibleNode.bind(this)).addClass('sliding slide-right');\n        $nodeContainer.nextAll().find('.node').filter(this.isVisibleNode.bind(this)).addClass('sliding slide-left');\n        $nodeContainer.siblings().addClass('isCollapsedSibling isChildrenCollapsed');\n      }\n      var $animatedNodes = $nodeContainer.siblings().find('.sliding');\n      $animatedNodes.eq(0).one('transitionend', { 'node': $node, 'nodeContainer': $nodeContainer, 'direction': direction, 'animatedNodes': $animatedNodes }, this.hideSiblingsEnd.bind(this));\n    },\n    //\n    showSiblingsEnd: function (event) {\n      var $node = event.data.node;\n      event.data.visibleNodes.removeClass('sliding');\n      if (this.isInAction($node)) {\n        this.switchHorizontalArrow($node);\n        $node.children('.topEdge').removeClass('oci-chevron-up').addClass('oci-chevron-down');\n      }\n    },\n    //\n    showRelatedParentEnd: function(event) {\n      $(event.target).removeClass('sliding');\n    },\n    // show the sibling nodes of the specified node\n    showSiblings: function ($node, direction) {\n      var that = this;\n      // firstly, show the sibling nodes\n      var $siblings = $();\n      var $nodeContainer = $node.closest('.hierarchy');\n      if (direction) {\n        if (direction === 'left') {\n          $siblings = $nodeContainer.prevAll().removeClass('hidden');\n        } else {\n          $siblings = $nodeContainer.nextAll().removeClass('hidden');\n        }\n      } else {\n        $siblings = $node.closest('.hierarchy').siblings().removeClass('hidden');\n      }\n      // secondly, show the lines\n      var $upperLevel = $node.closest('.nodes').siblings('.node');\n      if (direction) {\n        $nodeContainer.removeClass(direction + '-sibs');\n        if (!$nodeContainer.is('[class*=-sibs]')) {\n          $nodeContainer.removeClass('isSiblingsCollapsed');\n        }\n        $siblings.removeClass('isCollapsedSibling ' + direction + '-sibs');\n      } else {\n        $node.closest('.hierarchy').removeClass('isSiblingsCollapsed');\n        $siblings.removeClass('isCollapsedSibling');\n      }\n      // thirdly, show parent node if it is collapsed\n      if (!this.getNodeState($node, 'parent').visible) {\n        $node.closest('.hierarchy').removeClass('isAncestorsCollapsed');\n        $upperLevel.removeClass('hidden');\n        this.repaint($upperLevel[0]);\n        $upperLevel.addClass('sliding').removeClass('slide-down').one('transitionend', this.showRelatedParentEnd);\n      }\n      // lastly, show the sibling nodes with animation\n      var $visibleNodes = $siblings.find('.node').filter(this.isVisibleNode.bind(this));\n      this.repaint($visibleNodes.get(0));\n      $visibleNodes.addClass('sliding').removeClass('slide-left slide-right');\n      $visibleNodes.eq(0).one('transitionend', { 'node': $node, 'visibleNodes': $visibleNodes }, this.showSiblingsEnd.bind(this));\n    },\n    // start up loading status for requesting new nodes\n    startLoading: function ($edge) {\n      var $chart = this.$chart;\n      if (typeof $chart.data('inAjax') !== 'undefined' && $chart.data('inAjax') === true) {\n        return false;\n      }\n\n      $edge.addClass('hidden');\n      $edge.parent().append('<i class=\"oci oci-spinner spinner\"></i>')\n        .children().not('.spinner').css('opacity', 0.2);\n      $chart.data('inAjax', true);\n      $('.oc-export-btn').prop('disabled', true);\n      return true;\n    },\n    // terminate loading status for requesting new nodes\n    endLoading: function ($edge) {\n      var $node = $edge.parent();\n      $edge.removeClass('hidden');\n      $node.find('.spinner').remove();\n      $node.children().removeAttr('style');\n      this.$chart.data('inAjax', false);\n      $('.oc-export-btn').prop('disabled', false);\n    },\n    // whether the cursor is hovering over the node\n    isInAction: function ($node) {\n      return $node.children('.edge').attr('class').indexOf('oci-') > -1 ? true : false;\n    },\n    //\n    switchVerticalArrow: function ($arrow) {\n      $arrow.toggleClass('oci-chevron-up').toggleClass('oci-chevron-down');\n    },\n    //\n    switchHorizontalArrow: function ($node) {\n      var opts = this.options;\n      if (opts.toggleSiblingsResp && (typeof opts.ajaxURL === 'undefined' || $node.closest('.nodes').data('siblingsLoaded'))) {\n        var $prevSib = $node.parent().prev();\n        if ($prevSib.length) {\n          if ($prevSib.is('.hidden')) {\n            $node.children('.leftEdge').addClass('oci-chevron-left').removeClass('oci-chevron-right');\n          } else {\n            $node.children('.leftEdge').addClass('oci-chevron-right').removeClass('oci-chevron-left');\n          }\n        }\n        var $nextSib = $node.parent().next();\n        if ($nextSib.length) {\n          if ($nextSib.is('.hidden')) {\n            $node.children('.rightEdge').addClass('oci-chevron-right').removeClass('oci-chevron-left');\n          } else {\n            $node.children('.rightEdge').addClass('oci-chevron-left').removeClass('oci-chevron-right');\n          }\n        }\n      } else {\n        var $sibs = $node.parent().siblings();\n        var sibsVisible = $sibs.length ? !$sibs.is('.hidden') : false;\n        $node.children('.leftEdge').toggleClass('oci-chevron-right', sibsVisible).toggleClass('oci-chevron-left', !sibsVisible);\n        $node.children('.rightEdge').toggleClass('oci-chevron-left', sibsVisible).toggleClass('oci-chevron-right', !sibsVisible);\n      }\n    },\n    //\n    repaint: function (node) {\n      if (node) {\n        node.style.offsetWidth = node.offsetWidth;\n      }\n    },\n    // determines how to show arrow buttons \n    nodeEnterLeaveHandler: function (event) {\n      var $node = $(event.delegateTarget);\n      var flag = false;\n      if ($node.closest('.nodes.vertical').length) {\n        var $toggleBtn = $node.children('.toggleBtn');\n        if (event.type === 'mouseenter') {\n          if ($node.children('.toggleBtn').length) {\n            flag = this.getNodeState($node, 'children').visible;\n            $toggleBtn.toggleClass('oci-plus-square', !flag).toggleClass('oci-minus-square', flag);\n          }\n        } else {\n          $toggleBtn.removeClass('oci-plus-square oci-minus-square');\n        }\n      } else {\n        var $topEdge = $node.children('.topEdge');\n        var $rightEdge = $node.children('.rightEdge');\n        var $bottomEdge = $node.children('.bottomEdge');\n        var $leftEdge = $node.children('.leftEdge');\n        if (event.type === 'mouseenter') {\n          if ($topEdge.length) {\n            flag = this.getNodeState($node, 'parent').visible;\n            $topEdge.toggleClass('oci-chevron-up', !flag).toggleClass('oci-chevron-down', flag);\n          }\n          if ($bottomEdge.length) {\n            flag = this.getNodeState($node, 'children').visible;\n            $bottomEdge.toggleClass('oci-chevron-down', !flag).toggleClass('oci-chevron-up', flag);\n          }\n          if ($leftEdge.length) {\n            this.switchHorizontalArrow($node);\n          }\n        } else {\n          $node.children('.edge').removeClass('oci-chevron-up oci-chevron-down oci-chevron-right oci-chevron-left');\n        }\n      }\n    },\n    //\n    nodeClickHandler: function (event) {\n      this.$chart.find('.focused').removeClass('focused');\n      $(event.delegateTarget).addClass('focused');\n    },\n    // load new nodes by ajax\n    loadNodes: function (rel, url, $edge) {\n      var that = this;\n      var opts = this.options;\n      $.ajax({ 'url': url, 'dataType': 'json' })\n      .done(function (data) {\n        if (that.$chart.data('inAjax')) {\n          if (rel === 'parent') {\n            if (!$.isEmptyObject(data)) {\n              that.addParent($edge.parent(), data);\n            }\n          } else if (rel === 'children') {\n            if (data.children.length) {\n              that.addChildren($edge.parent(), data[rel]);\n            }\n          } else {\n            that.addSiblings($edge.parent(), data.siblings ? data.siblings : data);\n          }\n          that.triggerLoadEvent($edge.parent(), rel);\n        }\n      })\n      .fail(function () {\n        console.log('Failed to get ' + rel + ' data');\n      })\n      .always(function () {\n        that.endLoading($edge);\n      });\n    },\n    //\n    HideFirstParentEnd: function (event) {\n      var $topEdge = event.data.topEdge;\n      var $node = $topEdge.parent();\n      if (this.isInAction($node)) {\n        this.switchVerticalArrow($topEdge);\n        this.switchHorizontalArrow($node);\n      }\n    },\n    // actions on clinking top edge of a node\n    topEdgeClickHandler: function (event) {\n      event.stopPropagation();\n      var that = this;\n      var $topEdge = $(event.target);\n      var $node = $(event.delegateTarget);\n      var parentState = this.getNodeState($node, 'parent');\n      if (parentState.exist) {\n        var $parent = $node.closest('.nodes').siblings('.node');\n        if ($parent.is('.sliding')) { return; }\n        // hide the ancestor nodes and sibling nodes of the specified node\n        if (parentState.visible) {\n          this.hideParent($node);\n          $parent.one('transitionend', { 'topEdge': $topEdge }, this.HideFirstParentEnd.bind(this));\n          this.triggerHideEvent($node, 'parent');\n        } else { // show the ancestors and siblings\n          this.showParent($node);\n          this.triggerShowEvent($node, 'parent');\n        }\n      } else { // load the new parent node of the specified node by ajax request\n        // start up loading status\n        if (this.startLoading($topEdge)) {\n          var opts = this.options;\n          var url = $.isFunction(opts.ajaxURL.parent) ? opts.ajaxURL.parent($node.data('nodeData')) : opts.ajaxURL.parent + $node[0].id;\n          this.loadNodes('parent', url, $topEdge);\n        }\n      }\n    },\n    // actions on clinking bottom edge of a node\n    bottomEdgeClickHandler: function (event) {\n      event.stopPropagation();\n      var $bottomEdge = $(event.target);\n      var $node = $(event.delegateTarget);\n      var childrenState = this.getNodeState($node, 'children');\n      if (childrenState.exist) {\n        var $children = $node.siblings('.nodes').children().children('.node');\n        if ($children.is('.sliding')) { return; }\n        // hide the descendant nodes of the specified node\n        if (childrenState.visible) {\n          this.hideChildren($node);\n          this.triggerHideEvent($node, 'children');\n        } else { // show the descendants\n          this.showChildren($node);\n          this.triggerShowEvent($node, 'children');\n        }\n      } else { // load the new children nodes of the specified node by ajax request\n        if (this.startLoading($bottomEdge)) {\n          var opts = this.options;\n          var url = $.isFunction(opts.ajaxURL.children) ? opts.ajaxURL.children($node.data('nodeData')) : opts.ajaxURL.children + $node[0].id;\n          this.loadNodes('children', url, $bottomEdge);\n        }\n      }\n    },\n    // actions on clicking horizontal edges\n    hEdgeClickHandler: function (event) {\n      event.stopPropagation();\n      var $hEdge = $(event.target);\n      var $node = $(event.delegateTarget);\n      var opts = this.options;\n      var siblingsState = this.getNodeState($node, 'siblings');\n      if (siblingsState.exist) {\n        var $siblings = $node.closest('.hierarchy').siblings();\n        if ($siblings.find('.sliding').length) { return; }\n        if (opts.toggleSiblingsResp) {\n          var $prevSib = $node.closest('.hierarchy').prev();\n          var $nextSib = $node.closest('.hierarchy').next();\n          if ($hEdge.is('.leftEdge')) {\n            if ($prevSib.is('.hidden')) {\n              this.showSiblings($node, 'left');\n              this.triggerShowEvent($node,'siblings');\n            } else {\n              this.hideSiblings($node, 'left');\n              this.triggerHideEvent($node, 'siblings');\n            }\n          } else {\n            if ($nextSib.is('.hidden')) {\n              this.showSiblings($node, 'right');\n              this.triggerShowEvent($node,'siblings');\n            } else {\n              this.hideSiblings($node, 'right');\n              this.triggerHideEvent($node, 'siblings');\n            }\n          }\n        } else {\n          if (siblingsState.visible) {\n            this.hideSiblings($node);\n            this.triggerHideEvent($node, 'siblings');\n          } else {\n            this.showSiblings($node);\n            this.triggerShowEvent($node, 'siblings');\n          }\n        }\n      } else {\n        // load the new sibling nodes of the specified node by ajax request\n        if (this.startLoading($hEdge)) {\n          var nodeId = $node[0].id;\n          var url = (this.getNodeState($node, 'parent').exist) ?\n            ($.isFunction(opts.ajaxURL.siblings) ? opts.ajaxURL.siblings($node.data('nodeData')) : opts.ajaxURL.siblings + nodeId) :\n            ($.isFunction(opts.ajaxURL.families) ? opts.ajaxURL.families($node.data('nodeData')) : opts.ajaxURL.families + nodeId);\n          this.loadNodes('siblings', url, $hEdge);\n        }\n      }\n    },\n    //\n    expandVNodesEnd: function (event) {\n      event.data.vNodes.removeClass('sliding');\n    },\n    //\n    collapseVNodesEnd: function (event) {\n      event.data.vNodes.removeClass('sliding').closest('ul').addClass('hidden');\n    },\n    // event handler for toggle buttons in Hybrid(horizontal + vertical) OrgChart\n    toggleVNodes: function (event) {\n      var $toggleBtn = $(event.target);\n      var $descWrapper = $toggleBtn.parent().next();\n      var $descendants = $descWrapper.find('.node');\n      var $children = $descWrapper.children().children('.node');\n      if ($children.is('.sliding')) { return; }\n      $toggleBtn.toggleClass('oci-plus-square oci-minus-square');\n      if ($descendants.eq(0).is('.slide-up')) {\n        $descWrapper.removeClass('hidden');\n        this.repaint($children.get(0));\n        $children.addClass('sliding').removeClass('slide-up').eq(0).one('transitionend', { 'vNodes': $children }, this.expandVNodesEnd);\n      } else {\n        $descendants.addClass('sliding slide-up').eq(0).one('transitionend', { 'vNodes': $descendants }, this.collapseVNodesEnd);\n        $descendants.find('.toggleBtn').removeClass('oci-minus-square').addClass('oci-plus-square');\n      }\n    },\n    //\n    createGhostNode: function (event) {\n      var $nodeDiv = $(event.target);\n      var opts = this.options;\n      var origEvent = event.originalEvent;\n      var isFirefox = /firefox/.test(window.navigator.userAgent.toLowerCase());\n      var ghostNode, nodeCover;\n      if (!document.querySelector('.ghost-node')) {\n        ghostNode = document.createElementNS(\"http://www.w3.org/2000/svg\", \"svg\");\n        if (!ghostNode.classList) return;\n        ghostNode.classList.add('ghost-node');\n        nodeCover = document.createElementNS('http://www.w3.org/2000/svg','rect');\n        ghostNode.appendChild(nodeCover);\n        $nodeDiv.closest('.orgchart').append(ghostNode);\n      } else {\n        ghostNode = $nodeDiv.closest('.orgchart').children('.ghost-node').get(0);\n        nodeCover = $(ghostNode).children().get(0);\n      }\n      var transValues = $nodeDiv.closest('.orgchart').css('transform').split(',');\n      var isHorizontal = opts.direction === 't2b' || opts.direction === 'b2t';\n      var scale = Math.abs(window.parseFloat(isHorizontal ? transValues[0].slice(transValues[0].indexOf('(') + 1) : transValues[1]));\n      ghostNode.setAttribute('width', isHorizontal ? $nodeDiv.outerWidth(false) : $nodeDiv.outerHeight(false));\n      ghostNode.setAttribute('height', isHorizontal ? $nodeDiv.outerHeight(false) : $nodeDiv.outerWidth(false));\n      nodeCover.setAttribute('x',5 * scale);\n      nodeCover.setAttribute('y',5 * scale);\n      nodeCover.setAttribute('width', 120 * scale);\n      nodeCover.setAttribute('height', 40 * scale);\n      nodeCover.setAttribute('rx', 4 * scale);\n      nodeCover.setAttribute('ry', 4 * scale);\n      nodeCover.setAttribute('stroke-width', 1 * scale);\n      var xOffset = origEvent.offsetX * scale;\n      var yOffset = origEvent.offsetY * scale;\n      if (opts.direction === 'l2r') {\n        xOffset = origEvent.offsetY * scale;\n        yOffset = origEvent.offsetX * scale;\n      } else if (opts.direction === 'r2l') {\n        xOffset = $nodeDiv.outerWidth(false) - origEvent.offsetY * scale;\n        yOffset = origEvent.offsetX * scale;\n      } else if (opts.direction === 'b2t') {\n        xOffset = $nodeDiv.outerWidth(false) - origEvent.offsetX * scale;\n        yOffset = $nodeDiv.outerHeight(false) - origEvent.offsetY * scale;\n      }\n      if (isFirefox) { // hack for old version of Firefox(< 48.0)\n        nodeCover.setAttribute('fill', 'rgb(255, 255, 255)');\n        nodeCover.setAttribute('stroke', 'rgb(191, 0, 0)');\n        var ghostNodeWrapper = document.createElement('img');\n        ghostNodeWrapper.src = 'data:image/svg+xml;utf8,' + (new XMLSerializer()).serializeToString(ghostNode);\n        origEvent.dataTransfer.setDragImage(ghostNodeWrapper, xOffset, yOffset);\n      } else {\n        // IE/Edge do not support this, so only use it if we can\n        if (origEvent.dataTransfer.setDragImage)\n          origEvent.dataTransfer.setDragImage(ghostNode, xOffset, yOffset);\n      }\n    },\n    //\n    filterAllowedDropNodes: function ($dragged) {\n      var opts = this.options;\n      // what is being dragged?  a node, or something within a node?\n      var draggingNode = $dragged.closest('[draggable]').hasClass('node');\n      var $dragZone = $dragged.closest('.nodes').siblings('.node'); // parent node\n      var $dragHier = $dragged.closest('.hierarchy').find('.node'); // this node, and its children\n      this.$chart.data('dragged', $dragged)\n        .find('.node').each(function (index, node) {\n          if (!draggingNode || $dragHier.index(node) === -1) {\n            if (opts.dropCriteria) {\n              if (opts.dropCriteria($dragged, $dragZone, $(node))) {\n                $(node).addClass('allowedDrop');\n              }\n            } else {\n              $(node).addClass('allowedDrop');\n            }\n          }\n        });\n    },\n    //\n    dragstartHandler: function (event) {\n      event.originalEvent.dataTransfer.setData('text/html', 'hack for firefox');\n      // if users enable zoom or direction options\n      if (this.$chart.css('transform') !== 'none') {\n        this.createGhostNode(event);\n      }\n      this.filterAllowedDropNodes($(event.target));\n    },\n    //\n    dragoverHandler: function (event) {\n      if (!$(event.delegateTarget).is('.allowedDrop')) {\n        event.originalEvent.dataTransfer.dropEffect = 'none';\n      } else {\n        // default action for drag-and-drop of div is not to drop, so preventing default action for nodes which have allowedDrop class\n        //to fix drag and drop on IE and Edge\t\t\n        event.preventDefault();\n      }\n    },\n    //\n    dragendHandler: function (event) {\n      this.$chart.find('.allowedDrop').removeClass('allowedDrop');\n    },\n    // when user drops the node, it will be removed from original parent node and be added to new parent node\n    dropHandler: function (event) {\n      var $dropZone = $(event.delegateTarget);\n      var $dragged = this.$chart.data('dragged');\n\n      // Pass on drops which are not nodes (since they are not our doing)\n      if (!$dragged.hasClass('node')) {\n        this.$chart.triggerHandler({ 'type': 'otherdropped.orgchart', 'draggedItem': $dragged, 'dropZone': $dropZone });\n        return;\n      }\n      \n      if (!$dropZone.hasClass('allowedDrop')) {\n          // We are trying to drop a node into a node which isn't allowed\n          // IE/Edge have a habit of allowing this, so we need our own double-check\n          return;\n      }\n\n      var $dragZone = $dragged.closest('.nodes').siblings('.node');\n      var dropEvent = $.Event('nodedrop.orgchart');\n      this.$chart.trigger(dropEvent, { 'draggedNode': $dragged, 'dragZone': $dragZone, 'dropZone': $dropZone });\n      if (dropEvent.isDefaultPrevented()) {\n        return;\n      }\n      // firstly, deal with the hierarchy of drop zone\n      if (!$dropZone.siblings('.nodes').length) { // if the drop zone is a leaf node\n        $dropZone.append('<i class=\"edge verticalEdge bottomEdge oci\"></i>')\n          .after('<ul class=\"nodes\"></ul>')\n          .siblings('.nodes').append($dragged.find('.horizontalEdge').remove().end().closest('.hierarchy'));\n        if ($dropZone.children('.title').length) {\n          $dropZone.children('.title').prepend('<i class=\"oci '+  this.$chart.data('options').parentNodeSymbol + ' symbol\"></i>');\n        }\n      } else {\n        var horizontalEdges = '<i class=\"edge horizontalEdge rightEdge oci\"></i><i class=\"edge horizontalEdge leftEdge oci\"></i>';\n        if (!$dragged.find('.horizontalEdge').length) {\n          $dragged.append(horizontalEdges);\n        }\n        $dropZone.siblings('.nodes').append($dragged.closest('.hierarchy'));\n        var $dropSibs = $dragged.closest('.hierarchy').siblings().find('.node:first');\n        if ($dropSibs.length === 1) {\n          $dropSibs.append(horizontalEdges);\n        }\n      }\n      // secondly, deal with the hierarchy of dragged node\n      if ($dragZone.siblings('.nodes').children('.hierarchy').length === 1) { // if there is only one sibling node left\n        $dragZone.siblings('.nodes').children('.hierarchy').find('.node:first')\n          .find('.horizontalEdge').remove();\n      } else if ($dragZone.siblings('.nodes').children('.hierarchy').length === 0) {\n        $dragZone.find('.bottomEdge, .symbol').remove()\n          .end().siblings('.nodes').remove();\n      }\n    },\n    //\n    touchstartHandler: function (event) {\n      if (this.touchHandled)\n        return;\n\n      if (event.touches && event.touches.length > 1)\n        return;\n\n      this.touchHandled = true;\n      this.touchMoved = false; // this is so we can work out later if this was a 'press' or a 'drag' touch\n      event.preventDefault();\n    },\n    //\n    touchmoveHandler: function (event) {\n      if (!this.touchHandled)\n        return;\n\n      if (event.touches && event.touches.length > 1)\n        return;\n\n      event.preventDefault();\n\n      if (!this.touchMoved) {\n        // we do not bother with createGhostNode (dragstart does) since the touch event does not have a dataTransfer property\n        this.filterAllowedDropNodes($(event.currentTarget));  // will also set 'this.$chart.data('dragged')' for us\n        // create an image which can be used to illustrate the drag (our own createGhostNode)\n        this.touchDragImage = this.createDragImage(event, this.$chart.data('dragged')[0]);\n      }\n      this.touchMoved = true;\n\n      // move our dragimage so it follows our finger\n      this.moveDragImage(event, this.touchDragImage);\n\n      var $touching = $(document.elementFromPoint(event.touches[0].clientX, event.touches[0].clientY));\n      var $touchingNodes = $touching.closest('div.node');\n      if ($touchingNodes.length > 0) {\n        var touchingNodeElement = $touchingNodes[0];\n        if ($touchingNodes.is('.allowedDrop')) {\n          this.touchTargetNode = touchingNodeElement;\n        }\n        else {\n          this.touchTargetNode = null;\n        }\n      }\n      else {\n        this.touchTargetNode = null;\n      }\n    },\n    //\n    touchendHandler: function (event) {\n      if (!this.touchHandled) {\n          return;\n      }\n      this.destroyDragImage();\n      if (this.touchMoved) {\n          // we've had movement, so this was a 'drag' touch\n          if (this.touchTargetNode) {\n              var fakeEventForDropHandler = { delegateTarget: this.touchTargetNode };\n              this.dropHandler(fakeEventForDropHandler);\n              this.touchTargetNode = null;\n          }\n          this.dragendHandler(event);\n      }\n      else {\n          // we did not move, so this was a 'press' touch (fake a click)\n          var firstTouch = event.changedTouches[0];\n          var fakeMouseClickEvent = document.createEvent('MouseEvents');\n          fakeMouseClickEvent.initMouseEvent('click', true, true, window, 1, firstTouch.screenX, firstTouch.screenY, firstTouch.clientX, firstTouch.clientY, event.ctrlKey, event.altKey, event.shiftKey, event.metaKey, 0, null);\n          event.target.dispatchEvent(fakeMouseClickEvent);\n      }\n      this.touchHandled = false;\n    },\n    //\n    createDragImage: function (event, source) {\n      var dragImage = source.cloneNode(true);\n      this.copyStyle(source, dragImage);\n      dragImage.style.top = dragImage.style.left = '-9999px';\n      var sourceRectangle = source.getBoundingClientRect();\n      var sourcePoint = this.getTouchPoint(event);\n      this.touchDragImageOffset = { x: sourcePoint.x - sourceRectangle.left, y: sourcePoint.y - sourceRectangle.top };\n      dragImage.style.opacity = '0.5';\n      document.body.appendChild(dragImage);\n      return dragImage;\n    },\n    //\n    destroyDragImage: function () {\n      if (this.touchDragImage && this.touchDragImage.parentElement)\n        this.touchDragImage.parentElement.removeChild(this.touchDragImage);\n      this.touchDragImageOffset = null;\n      this.touchDragImage = null;\n    },\n    //\n    copyStyle: function (src, dst) {\n      // remove potentially troublesome attributes\n      var badAttributes = ['id', 'class', 'style', 'draggable'];\n      badAttributes.forEach(function (att) {\n          dst.removeAttribute(att);\n      });\n      // copy canvas content\n      if (src instanceof HTMLCanvasElement) {\n        var cSrc = src, cDst = dst;\n        cDst.width = cSrc.width;\n        cDst.height = cSrc.height;\n        cDst.getContext('2d').drawImage(cSrc, 0, 0);\n      }\n      // copy style (without transitions)\n      var cs = getComputedStyle(src);\n      for (var i = 0; i < cs.length; i++) {\n        var key = cs[i];\n        if (key.indexOf('transition') < 0) {\n          dst.style[key] = cs[key];\n        }\n      }\n      dst.style.pointerEvents = 'none';\n      // and repeat for all children\n      for (var i = 0; i < src.children.length; i++) {\n        this.copyStyle(src.children[i], dst.children[i]);\n      }\n    },\n    //\n    getTouchPoint: function (event) {\n      if (event && event.touches) {\n        event = event.touches[0];\n      }\n      return {\n        x: event.clientX,\n        y: event.clientY\n      };\n    },\n    //\n    moveDragImage: function (event, image) {\n      if (!event || !image)\n        return;\n      var orgChartMaster = this;\n      requestAnimationFrame(function () {\n        var pt = orgChartMaster.getTouchPoint(event);\n        var s = image.style;\n        s.position = 'absolute';\n        s.pointerEvents = 'none';\n        s.zIndex = '999999';\n        if (orgChartMaster.touchDragImageOffset) {\n            s.left = Math.round(pt.x - orgChartMaster.touchDragImageOffset.x) + 'px';\n            s.top = Math.round(pt.y - orgChartMaster.touchDragImageOffset.y) + 'px';\n        }\n      });\n    },\n    //\n    bindDragDrop: function ($node) {\n      $node.on('dragstart', this.dragstartHandler.bind(this))\n        .on('dragover', this.dragoverHandler.bind(this))\n        .on('dragend', this.dragendHandler.bind(this))\n        .on('drop', this.dropHandler.bind(this))\n        .on('touchstart', this.touchstartHandler.bind(this))\n        .on('touchmove', this.touchmoveHandler.bind(this))\n        .on('touchend', this.touchendHandler.bind(this));\n    },\n    // create node\n    createNode: function (data) {\n      var that = this;\n      var opts = this.options;\n      var level = data.level;\n      if (data.children && data[opts.nodeId]) {\n        $.each(data.children, function (index, child) {\n          child.parentId = data[opts.nodeId]\n        });\n      }\n      // construct the content of node\n      var $nodeDiv = $('<div' + (opts.draggable ? ' draggable=\"true\"' : '') + (data[opts.nodeId] ? ' id=\"' + data[opts.nodeId] + '\"' : '') + (data.parentId ? ' data-parent=\"' + data.parentId + '\"' : '') + '>')\n        .addClass('node ' + (data.className || '') +  (level > opts.visibleLevel ? ' slide-up' : ''));\n      if (opts.nodeTemplate) {\n        $nodeDiv.append(opts.nodeTemplate(data));\n      } else {\n        $nodeDiv.append('<div class=\"title\">' + data[opts.nodeTitle] + '</div>')\n          .append(typeof opts.nodeContent !== 'undefined' ? '<div class=\"content\">' + (data[opts.nodeContent] || '') + '</div>' : '');\n      }\n      //\n      var nodeData = $.extend({}, data);\n      delete nodeData.children;\n      $nodeDiv.data('nodeData', nodeData);\n      // append 4 direction arrows or expand/collapse buttons\n      var flags = data.relationship || '';\n      if (opts.verticalLevel && level >= opts.verticalLevel) {\n        if ((level + 1) > opts.verticalLevel && Number(flags.substr(2,1))) {\n          $nodeDiv.append('<i class=\"toggleBtn oci\"></i>')\n            .children('.title').prepend('<i class=\"oci '+ opts.parentNodeSymbol + ' symbol\"></i>');\n        }\n      } else {\n        if (Number(flags.substr(0,1))) {\n          $nodeDiv.append('<i class=\"edge verticalEdge topEdge oci\"></i>');\n        }\n        if(Number(flags.substr(1,1))) {\n          $nodeDiv.append('<i class=\"edge horizontalEdge rightEdge oci\"></i>' +\n            '<i class=\"edge horizontalEdge leftEdge oci\"></i>');\n        }\n        if(Number(flags.substr(2,1))) {\n          $nodeDiv.append('<i class=\"edge verticalEdge bottomEdge oci\"></i>')\n            .children('.title').prepend('<i class=\"oci '+ opts.parentNodeSymbol + ' symbol\"></i>');\n        }\n      }\n\n      $nodeDiv.on('mouseenter mouseleave', this.nodeEnterLeaveHandler.bind(this));\n      $nodeDiv.on('click', this.nodeClickHandler.bind(this));\n      $nodeDiv.on('click', '.topEdge', this.topEdgeClickHandler.bind(this));\n      $nodeDiv.on('click', '.bottomEdge', this.bottomEdgeClickHandler.bind(this));\n      $nodeDiv.on('click', '.leftEdge, .rightEdge', this.hEdgeClickHandler.bind(this));\n      $nodeDiv.on('click', '.toggleBtn', this.toggleVNodes.bind(this));\n\n      if (opts.draggable) {\n        this.bindDragDrop($nodeDiv);\n        this.touchHandled = false;\n        this.touchMoved = false;\n        this.touchTargetNode = null;\n      }\n      // allow user to append dom modification after finishing node create of orgchart\n      if (opts.createNode) {\n        opts.createNode($nodeDiv, data);\n      }\n\n      return $nodeDiv;\n    },\n    // recursively build the tree\n    buildHierarchy: function ($appendTo, data) {\n      var that = this;\n      var opts = this.options;\n      var level = 0;\n      if (data.level) {\n        level = data.level;\n      } else {\n        level = data.level = $appendTo.parentsUntil('.orgchart', '.nodes').length;\n      }\n      // Construct the node\n      if (Object.keys(data).length > 2) {\n        var $nodeDiv = this.createNode(data);\n        if (opts.verticalLevel && level >= opts.verticalLevel) {\n          $appendTo.append($nodeDiv);\n        } else {\n          $appendTo.append($nodeDiv);\n        }\n      }\n      // Construct the \"inferior nodes\"\n      if (data.children && data.children.length) {\n        var isHidden = level + 1 > opts.visibleLevel || (data.collapsed !== undefined && data.collapsed);\n        var isVerticalLayer = opts.verticalLevel && (level + 1) >= opts.verticalLevel;\n        var $nodesLayer;\n        if (isVerticalLayer) {\n          $nodesLayer = $('<ul class=\"nodes\">');\n          if (isHidden && level + 1 >= opts.verticalLevel) {\n            $nodesLayer.addClass('hidden');\n          }\n          if (level + 1 === opts.verticalLevel) {\n            $appendTo.addClass('hybrid').append($nodesLayer.addClass('vertical'));\n          } else {\n            $appendTo.append($nodesLayer);\n          }\n        } else {\n          $nodesLayer = $('<ul class=\"nodes' + (isHidden ? ' hidden' : '') + '\">');\n          if (Object.keys(data).length === 2) {\n            $appendTo.append($nodesLayer);\n          } else {\n            if (isHidden) {\n              $appendTo.addClass('isChildrenCollapsed');\n            }\n            $appendTo.append($nodesLayer);\n          }\n        }\n        // recurse through children nodes\n        $.each(data.children, function () {\n          var $nodeCell = $('<li class=\"hierarchy\">');\n          $nodesLayer.append($nodeCell);\n          this.level = level + 1;\n          that.buildHierarchy($nodeCell, this);\n        });\n      }\n    },\n    // build the child nodes of specific node\n    buildChildNode: function ($appendTo, data) {\n      this.buildHierarchy($appendTo, { 'children': data });\n    },\n    // exposed method\n    addChildren: function ($node, data) {\n      this.buildChildNode($node.closest('.hierarchy'), data);\n      if (!$node.find('.symbol').length) {\n        $node.children('.title').prepend('<i class=\"oci '+ this.options.parentNodeSymbol + ' symbol\"></i>');\n      }\n      if ($node.closest('.nodes.vertical').length) {\n        if (!$node.children('.toggleBtn').length) {\n          $node.append('<i class=\"toggleBtn oci\"></i>');\n        }\n      } else {\n        if (!$node.children('.bottomEdge').length) {\n          $node.append('<i class=\"edge verticalEdge bottomEdge oci\"></i>');\n        }\n      }\n      if (this.isInAction($node)) {\n        this.switchVerticalArrow($node.children('.bottomEdge'));\n      }\n    },\n    // build the parent node of specific node\n    buildParentNode: function ($currentRoot, data) {\n      data.relationship = data.relationship || '001';\n      var $newRootWrapper = $('<ul class=\"nodes\"><li class=\"hierarchy\"></li></ul>')\n        .find('.hierarchy').append(this.createNode(data)).end();\n      this.$chart.prepend($newRootWrapper)\n        .find('.hierarchy:first').append($currentRoot.closest('ul').addClass('nodes'));\n    },\n    // exposed method\n    addParent: function ($currentRoot, data) {\n      this.buildParentNode($currentRoot, data);\n      if (!$currentRoot.children('.topEdge').length) {\n        $currentRoot.children('.title').after('<i class=\"edge verticalEdge topEdge oci\"></i>');\n      }\n      if (this.isInAction($currentRoot)) {\n        this.switchVerticalArrow($currentRoot.children('.topEdge'));\n      }\n    },\n    // build the sibling nodes of specific node\n    buildSiblingNode: function ($nodeChart, data) {\n      var newSiblingCount = $.isArray(data) ? data.length : data.children.length;\n      var existingSibligCount = $nodeChart.parent().is('.nodes') ? $nodeChart.siblings().length + 1 : 1;\n      var siblingCount = existingSibligCount + newSiblingCount;\n      var insertPostion = (siblingCount > 1) ? Math.floor(siblingCount/2 - 1) : 0;\n      // just build the sibling nodes for the specific node\n      if ($nodeChart.closest('.nodes').parent().is('.hierarchy')) {\n        this.buildChildNode($nodeChart.parent().closest('.hierarchy'), data);\n        var $siblings = $nodeChart.parent().closest('.hierarchy').children('.nodes:last').children('.hierarchy');\n        if (existingSibligCount > 1) {\n          $siblings.eq(0).before($nodeChart.siblings().addBack().unwrap());\n        } else {\n          $siblings.eq(insertPostion).after($nodeChart.unwrap());\n        }\n      } else { // build the sibling nodes and parent node for the specific ndoe\n        this.buildHierarchy($nodeChart.parent().prepend($('<li class=\"hierarchy\">')).children('.hierarchy:first'), data);\n        $nodeChart.prevAll('.hierarchy').children('.nodes').children().eq(insertPostion).after($nodeChart);\n      }\n    },\n    //\n    addSiblings: function ($node, data) {\n      this.buildSiblingNode($node.closest('.hierarchy'), data);\n      $node.closest('.nodes').data('siblingsLoaded', true);\n      if (!$node.children('.leftEdge').length) {\n        $node.children('.topEdge').after('<i class=\"edge horizontalEdge rightEdge oci\"></i><i class=\"edge horizontalEdge leftEdge oci\"></i>');\n      }\n      if (this.isInAction($node)) {\n        this.switchHorizontalArrow($node);\n        $node.children('.topEdge').removeClass('oci-chevron-up').addClass('oci-chevron-down');\n      }\n    },\n    // remove node and its descendent nodes\n    removeNodes: function ($node) {\n      var $wrapper = $node.closest('.hierarchy').parent();\n      if ($wrapper.parent().is('.hierarchy')) {\n        if (this.getNodeState($node, 'siblings').exist) {\n          $node.closest('.hierarchy').remove();\n          if ($wrapper.children().length === 1) {\n            $wrapper.find('.node:first .horizontalEdge').remove();\n          }\n        } else {\n          $wrapper.siblings('.node').find('.bottomEdge').remove()\n            .end().end().remove();\n        }\n      } else { // if $node is root node\n        $wrapper.closest('.orgchart').remove();\n      }\n    },\n    //\n    hideDropZones: function () {\n      // Remove all the 'this is a drop zone' indicators\n      var orgChartObj = this;\n      orgChartObj.$chart.find('.allowedDrop')\n        .removeClass('allowedDrop');\n    },\n    //\n    showDropZones: function (dragged) {\n      // Highlight all the 'drop zones', and set dragged, so that the drop/enter can work out what happens later\n      // TODO: This assumes all nodes are droppable: it doesn't run the custom isDroppable function - it should!\n      var orgChartObj = this;\n      orgChartObj.$chart.find('.node')\n        .each(function (index, node) {\n          $(node).addClass('allowedDrop');\n        });\n      orgChartObj.$chart.data('dragged', $(dragged));\n    },\n    //\n    processExternalDrop: function (dropZone, dragged) {\n      // Allow an external drop event to be handled by one of our nodes\n      if (dragged) {\n        this.$chart.data('dragged', $(dragged));\n      }\n      var droppedOnNode = dropZone.closest('.node');\n      // would like to just call 'dropZoneHandler', but I can't reach it from here\n      // instead raise a drop event on the node element\n      droppedOnNode.triggerHandler({ 'type': 'drop' });\n    },\n    //\n    exportPDF: function(canvas, exportFilename){\n      var doc = {};\n      var docWidth = Math.floor(canvas.width);\n      var docHeight = Math.floor(canvas.height);\n      if (!window.jsPDF) {\n        window.jsPDF = window.jspdf.jsPDF;\n      }\n\n      if (docWidth > docHeight) {\n        doc = new jsPDF({\n          orientation: 'landscape',\n          unit: 'px',\n          format: [docWidth, docHeight]\n        });\n      } else {\n        doc = new jsPDF({\n          orientation: 'portrait',\n          unit: 'px',\n          format: [docHeight, docWidth]\n        });\n      }\n      doc.addImage(canvas.toDataURL(), 'png', 0, 0);\n      doc.save(exportFilename + '.pdf');\n    },\n    //\n    exportPNG: function(canvas, exportFilename){\n      var that = this;\n      var isWebkit = 'WebkitAppearance' in document.documentElement.style;\n      var isFf = !!window.sidebar;\n      var isEdge = navigator.appName === 'Microsoft Internet Explorer' || (navigator.appName === \"Netscape\" && navigator.appVersion.indexOf('Edge') > -1);\n      var $chartContainer = this.$chartContainer;\n\n      if ((!isWebkit && !isFf) || isEdge) {\n        window.navigator.msSaveBlob(canvas.msToBlob(), exportFilename + '.png');\n      } else {\n        var selector = '.oci-download-btn' + (that.options.chartClass !== '' ? '.' + that.options.chartClass : '');\n\n        if (!$chartContainer.find(selector).length) {\n          $chartContainer.append('<a class=\"oci-download-btn' + (that.options.chartClass !== '' ? ' ' + that.options.chartClass : '') + '\"'\n                                 + ' download=\"' + exportFilename + '.png\"></a>');\n        }\n\n        $chartContainer.find(selector).attr('href', canvas.toDataURL())[0].click();\n      }\n    },\n    //\n    export: function (exportFilename, exportFileextension) {\n      var that = this;\n      exportFilename = (typeof exportFilename !== 'undefined') ?  exportFilename : this.options.exportFilename;\n      exportFileextension = (typeof exportFileextension !== 'undefined') ?  exportFileextension : this.options.exportFileextension;\n      if ($(this).children('.spinner').length) {\n        return false;\n      }\n      var $chartContainer = this.$chartContainer;\n      var $mask = $chartContainer.find('.mask');\n      if (!$mask.length) {\n        $chartContainer.append('<div class=\"mask\"><i class=\"oci oci-spinner spinner\"></i></div>');\n      } else {\n        $mask.removeClass('hidden');\n      }\n      var sourceChart = $chartContainer.addClass('canvasContainer').find('.orgchart:not(\".hidden\")').get(0);\n      var flag = that.options.direction === 'l2r' || that.options.direction === 'r2l';\n      html2canvas(sourceChart, {\n        'width': flag ? sourceChart.clientHeight : sourceChart.clientWidth,\n        'height': flag ? sourceChart.clientWidth : sourceChart.clientHeight,\n        'onclone': function (cloneDoc) {\n          $(cloneDoc).find('.canvasContainer').css('overflow', 'visible')\n            .find('.orgchart:not(\".hidden\"):first').css('transform', '');\n        }\n      })\n      .then(function (canvas) {\n        $chartContainer.find('.mask').addClass('hidden');\n\n        if (exportFileextension.toLowerCase() === 'pdf') {\n          that.exportPDF(canvas, exportFilename);\n        } else {\n          that.exportPNG(canvas, exportFilename);\n        }\n\n        $chartContainer.removeClass('canvasContainer');\n      }, function () {\n        $chartContainer.removeClass('canvasContainer');\n      });\n    }\n  };\n\n  $.fn.orgchart = function (opts) {\n    return new OrgChart(this, opts).init();\n  };\n\n}));\n"]}