/*
 * Activiti Modeler component part of the Activiti project
 * Copyright 2005-2014 Alfresco Software, Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
'use strict'

angular.module('activitiModeler')
  .controller('StencilController', ['$rootScope', '$scope', '$http', '$modal', '$timeout', function ($rootScope, $scope, $http, $modal, $timeout) {
    // Property window toggle state
    $scope.propertyWindowState = { 'collapsed': false }

    // Add reference to global header-config
    $scope.headerConfig = KISBPM.HEADER_CONFIG

    $scope.propertyWindowState.toggle = function () {
      $scope.propertyWindowState.collapsed = !$scope.propertyWindowState.collapsed
      $timeout(function () {
        jQuery(window).trigger('resize')
      })
    }

    // Code that is dependent on an initialised Editor is wrapped in a promise for the editor
    $scope.editorFactory.promise.then(function () {
      /* Build stencil item list */

      // Build simple json representation of stencil set
      var stencilItemGroups = []

      // Helper method: find a group in an array
      var findGroup = function (name, groupArray) {
        for (var index = 0; index < groupArray.length; index++) {
          if (groupArray[index].name === name) {
            return groupArray[index]
          }
        }
        return null
      }

      // Helper method: add a new group to an array of groups
      var addGroup = function (groupName, groupArray) {
        var group = { name: groupName, items: [], paletteItems: [], groups: [], visible: true }
        groupArray.push(group)
        return group
      }

      var headers = {}
      var token = EDITOR.UTIL.getParameterByName('token')
      token = token && token.replace(/^"|"$/g, '')
      headers[$rootScope.config.token] = token

      /*
       StencilSet items
       */
      $http({ method: 'GET', url: KISBPM.URL.getStencilSet(), headers }).success(function (data, status, headers, config) {
        var quickMenuDefinition = ['UserTask', 'EndNoneEvent', 'ExclusiveGateway',
          'CatchTimerEvent', 'ThrowNoneEvent', 'TextAnnotation',
          'SequenceFlow', 'Association']
        var ignoreForPaletteDefinition = ['SequenceFlow', 'MessageFlow', 'Association', 'DataAssociation', 'DataStore', 'SendTask']
        var quickMenuItems = []

        var morphRoles = []
        for (var i = 0; i < data.rules.morphingRules.length; i++) {
          var role = data.rules.morphingRules[i].role
          var roleItem = { 'role': role, 'morphOptions': [] }
          morphRoles.push(roleItem)
        }

        // Check all received items
        for (var stencilIndex = 0; stencilIndex < data.stencils.length; stencilIndex++) {
          // Check if the root group is the 'diagram' group. If so, this item should not be shown.
          var currentGroupName = data.stencils[stencilIndex].groups[0]
          if (currentGroupName === 'Diagram' || currentGroupName === 'Form') {
            continue // go to next item
          }

          var removed = false
          if (data.stencils[stencilIndex].removed) {
            removed = true
          }

          var currentGroup = undefined
          if (!removed) {
            // Check if this group already exists. If not, we create a new one

            if (currentGroupName !== null && currentGroupName !== undefined && currentGroupName.length > 0) {
              currentGroup = findGroup(currentGroupName, stencilItemGroups) // Find group in root groups array
              if (currentGroup === null) {
                currentGroup = addGroup(currentGroupName, stencilItemGroups)
              }

              // Add all child groups (if any)
              for (var groupIndex = 1; groupIndex < data.stencils[stencilIndex].groups.length; groupIndex++) {
                var childGroupName = data.stencils[stencilIndex].groups[groupIndex]
                var childGroup = findGroup(childGroupName, currentGroup.groups)
                if (childGroup === null) {
                  childGroup = addGroup(childGroupName, currentGroup.groups)
                }

                // The current group variable holds the parent of the next group (if any),
                // and is basically the last element in the array of groups defined in the stencil item
                currentGroup = childGroup
              }
            }
          }

          // Construct the stencil item
          var stencilItem = {
            'id': data.stencils[stencilIndex].id,
            'name': data.stencils[stencilIndex].title,
            'description': data.stencils[stencilIndex].description,
            'icon': data.stencils[stencilIndex].icon,
            'type': data.stencils[stencilIndex].type,
            'roles': data.stencils[stencilIndex].roles,
            'removed': removed,
            'customIcon': false,
            'canConnect': false,
            'canConnectTo': false,
            'canConnectAssociation': false
          }

          if (data.stencils[stencilIndex].customIconId && data.stencils[stencilIndex].customIconId > 0) {
            stencilItem.customIcon = true
            stencilItem.icon = data.stencils[stencilIndex].customIconId
          }

          if (!removed) {
            if (quickMenuDefinition.indexOf(stencilItem.id) >= 0) {
              quickMenuItems[quickMenuDefinition.indexOf(stencilItem.id)] = stencilItem
            }
          }

          if (stencilItem.id === 'TextAnnotation' || stencilItem.id === 'BoundaryCompensationEvent') {
            stencilItem.canConnectAssociation = true
          }

          for (var i = 0; i < data.stencils[stencilIndex].roles.length; i++) {
            var stencilRole = data.stencils[stencilIndex].roles[i]
            if (stencilRole === 'sequence_start') {
              stencilItem.canConnect = true
            } else if (stencilRole === 'sequence_end') {
              stencilItem.canConnectTo = true
            }

            for (var j = 0; j < morphRoles.length; j++) {
              if (stencilRole === morphRoles[j].role) {
                if (!removed) {
                  morphRoles[j].morphOptions.push(stencilItem)
                }
                stencilItem.morphRole = morphRoles[j].role
                break
              }
            }
          }

          if (currentGroup) {
            // Add the stencil item to the correct group
            currentGroup.items.push(stencilItem)
            if (ignoreForPaletteDefinition.indexOf(stencilItem.id) < 0) {
              currentGroup.paletteItems.push(stencilItem)
            }
          } else {
            // It's a root stencil element
            if (!removed) {
              stencilItemGroups.push(stencilItem)
            }
          }
        }

        for (var i = 0; i < stencilItemGroups.length; i++) {
          if (stencilItemGroups[i].paletteItems && stencilItemGroups[i].paletteItems.length == 0) {
            stencilItemGroups[i].visible = false
          }
        }

        $scope.stencilItemGroups = stencilItemGroups

        var containmentRules = []
        for (var i = 0; i < data.rules.containmentRules.length; i++) {
          var rule = data.rules.containmentRules[i]
          containmentRules.push(rule)
        }
        $scope.containmentRules = containmentRules

        // remove quick menu items which are not available anymore due to custom pallette
        var availableQuickMenuItems = []
        for (var i = 0; i < quickMenuItems.length; i++) {
          if (quickMenuItems[i]) {
            availableQuickMenuItems[availableQuickMenuItems.length] = quickMenuItems[i]
          }
        }

        $scope.quickMenuItems = availableQuickMenuItems
        $scope.morphRoles = morphRoles
      }).error(function (data, status, headers, config) {
        console.log('Something went wrong when fetching stencil items:' + JSON.stringify(data))
      })

      /*
       * Listen to selection change events: show properties
       */
      $scope.editor.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, function (event) {
        var shapes = event.elements
        var canvasSelected = false
        if (shapes && shapes.length == 0) {
          shapes = [$scope.editor.getCanvas()]
          canvasSelected = true
        }
        if (shapes && shapes.length > 0) {
          var selectedShape = shapes.first()
          var stencil = selectedShape.getStencil()

          if ($rootScope.selectedElementBeforeScrolling && stencil.id().indexOf('BPMNDiagram') !== -1) {
            // ignore canvas event because of empty selection when scrolling stops
            return
          }

          if ($rootScope.selectedElementBeforeScrolling && $rootScope.selectedElementBeforeScrolling.getId() === selectedShape.getId()) {
            $rootScope.selectedElementBeforeScrolling = null
            return
          }

          // Store previous selection
          $scope.previousSelectedShape = $scope.selectedShape

          // Only do something if another element is selected (Oryx fires this event multiple times)
          if ($scope.selectedShape !== undefined && $scope.selectedShape.getId() === selectedShape.getId()) {
            if ($rootScope.forceSelectionRefresh) {
              // Switch the flag again, this run will force refresh
              $rootScope.forceSelectionRefresh = false
            } else {
              // Selected the same element again, no need to update anything
              return
            }
          }

          var selectedItem = { 'title': '', 'properties': [] }

          if (canvasSelected) {
            selectedItem.auditData = {
              'author': $scope.modelData.createdByUser,
              'createDate': $scope.modelData.createDate
            }
          }

          // Gather properties of selected item
          var properties = stencil.properties()
          for (var i = 0; i < properties.length; i++) {
            var property = properties[i]
            if (property.popular() == false) continue
            var key = property.prefix() + '-' + property.id()

            if (key === 'oryx-name') {
              selectedItem.title = selectedShape.properties[key]
            }

            // First we check if there is a config for 'key-type' and then for 'type' alone
            var propertyConfig = KISBPM.PROPERTY_CONFIG[key + '-' + property.type()]
            if (propertyConfig === undefined || propertyConfig === null) {
              propertyConfig = KISBPM.PROPERTY_CONFIG[property.type()]
            }

            if (propertyConfig === undefined || propertyConfig === null) {
              console.log('WARNING: no property configuration defined for ' + key + ' of type ' + property.type())
            } else {
              if (selectedShape.properties[key] === 'true') {
                selectedShape.properties[key] = true
              }

              if (KISBPM.CONFIG.showRemovedProperties == false && property.isHidden()) {
                continue
              }

              var currentProperty = {
                'key': key,
                'title': property.title(),
                'type': property.type(),
                'mode': 'read',
                'hidden': property.isHidden(),
                'value': selectedShape.properties[key]
              }

              if ((currentProperty.type === 'complex' || currentProperty.type === 'multiplecomplex') && currentProperty.value && currentProperty.value.length > 0) {
                try {
                  currentProperty.value = JSON.parse(currentProperty.value)
                } catch (err) {
                  // ignore
                }
              }

              if (propertyConfig.readModeTemplateUrl !== undefined && propertyConfig.readModeTemplateUrl !== null) {
                currentProperty.readModeTemplateUrl = propertyConfig.readModeTemplateUrl + '?version=' + $rootScope.staticIncludeVersion
              }
              if (propertyConfig.writeModeTemplateUrl !== null && propertyConfig.writeModeTemplateUrl !== null) {
                currentProperty.writeModeTemplateUrl = propertyConfig.writeModeTemplateUrl + '?version=' + $rootScope.staticIncludeVersion
              }

              if (propertyConfig.templateUrl !== undefined && propertyConfig.templateUrl !== null) {
                currentProperty.templateUrl = propertyConfig.templateUrl + '?version=' + $rootScope.staticIncludeVersion
                currentProperty.hasReadWriteMode = false
              } else {
                currentProperty.hasReadWriteMode = true
              }

              if (currentProperty.value === undefined ||
                currentProperty.value === null ||
                currentProperty.value.length == 0) {
                currentProperty.noValue = true
              }

              selectedItem.properties.push(currentProperty)
            }
          }

          // Need to wrap this in an $apply block, see http://jimhoskins.com/2012/12/17/angularjs-and-apply.html
          $scope.safeApply(function () {
            $scope.selectedItem = selectedItem
            $scope.selectedShape = selectedShape
          })
        } else {
          $scope.safeApply(function () {
            $scope.selectedItem = {}
            $scope.selectedShape = null
          })
        }
      })

      $scope.editor.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, function (event) {
        KISBPM.eventBus.dispatch(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS)
        var shapes = event.elements

        if (shapes && shapes.length == 1) {
          var selectedShape = shapes.first()

          var a = $scope.editor.getCanvas().node.getScreenCTM()

          var absoluteXY = selectedShape.absoluteXY()

          absoluteXY.x *= a.a
          absoluteXY.y *= a.d

          var additionalIEZoom = 1
          if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
            var ua = navigator.userAgent
            if (ua.indexOf('MSIE') >= 0) {
              // IE 10 and below
              var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100)
              if (zoom !== 100) {
                additionalIEZoom = zoom / 100
              }
            }
          }

          if (additionalIEZoom === 1) {
            absoluteXY.y = absoluteXY.y - jQuery('#canvasSection').offset().top + 5
            absoluteXY.x = absoluteXY.x - jQuery('#canvasSection').offset().left
          } else {
            var canvasOffsetLeft = jQuery('#canvasSection').offset().left
            var canvasScrollLeft = jQuery('#canvasSection').scrollLeft()
            var canvasScrollTop = jQuery('#canvasSection').scrollTop()

            var offset = a.e - (canvasOffsetLeft * additionalIEZoom)
            var additionaloffset = 0
            if (offset > 10) {
              additionaloffset = (offset / additionalIEZoom) - offset
            }
            absoluteXY.y = absoluteXY.y - (jQuery('#canvasSection').offset().top * additionalIEZoom) + 5 + ((canvasScrollTop * additionalIEZoom) - canvasScrollTop)
            absoluteXY.x = absoluteXY.x - (canvasOffsetLeft * additionalIEZoom) + additionaloffset + ((canvasScrollLeft * additionalIEZoom) - canvasScrollLeft)
          }

          var bounds = new ORYX.Core.Bounds(a.e + absoluteXY.x, a.f + absoluteXY.y, a.e + absoluteXY.x + a.a * selectedShape.bounds.width(), a.f + absoluteXY.y + a.d * selectedShape.bounds.height())
          var shapeXY = bounds.upperLeft()

          var stencilItem = $scope.getStencilItemById(selectedShape.getStencil().idWithoutNs())
          var morphShapes = []
          if (stencilItem && stencilItem.morphRole) {
            for (var i = 0; i < $scope.morphRoles.length; i++) {
              if ($scope.morphRoles[i].role === stencilItem.morphRole) {
                morphShapes = $scope.morphRoles[i].morphOptions
              }
            }
          }

          var x = shapeXY.x
          if (bounds.width() < 48) {
            x -= 24
          }

          if (morphShapes && morphShapes.length > 0) {
            // In case the element is not wide enough, start the 2 bottom-buttons more to the left
            // to prevent overflow in the right-menu
            var morphButton = document.getElementById('morph-button')
            morphButton.style.display = 'block'
            morphButton.style.left = x + 24 + 'px'
            morphButton.style.top = (shapeXY.y + bounds.height() + 2) + 'px'
          }

          var deleteButton = document.getElementById('delete-button')
          deleteButton.style.display = 'block'
          deleteButton.style.left = x + 'px'
          deleteButton.style.top = (shapeXY.y + bounds.height() + 2) + 'px'

          if (stencilItem && (stencilItem.canConnect || stencilItem.canConnectAssociation)) {
            var quickButtonCounter = 0
            var quickButtonX = shapeXY.x + bounds.width() + 5
            var quickButtonY = shapeXY.y
            jQuery('.Oryx_button').each(function (i, obj) {
              if (obj.id !== 'morph-button' && obj.id != 'delete-button') {
                quickButtonCounter++
                if (quickButtonCounter > 3) {
                  quickButtonX = shapeXY.x + bounds.width() + 5
                  quickButtonY += 24
                  quickButtonCounter = 1
                } else if (quickButtonCounter > 1) {
                  quickButtonX += 24
                }
                obj.style.display = 'block'
                obj.style.left = quickButtonX + 'px'
                obj.style.top = quickButtonY + 'px'
              }
            })
          }
        }
      })

      if (!$rootScope.stencilInitialized) {
        KISBPM.eventBus.addListener(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS, function (event) {
          jQuery('.Oryx_button').each(function (i, obj) {
            obj.style.display = 'none'
          })
        })

        /*
         * Listen to property updates and act upon them
         */
        KISBPM.eventBus.addListener(KISBPM.eventBus.EVENT_TYPE_PROPERTY_VALUE_CHANGED, function (event) {
          if (event.property && event.property.key) {
            // If the name property is been updated, we also need to change the title of the currently selected item
            if (event.property.key === 'oryx-name' && $scope.selectedItem !== undefined && $scope.selectedItem !== null) {
              $scope.selectedItem.title = event.newValue
            }

            // Update "no value" flag
            event.property.noValue = (event.property.value === undefined ||
              event.property.value === null ||
              event.property.value.length == 0)
          }
        })

        $rootScope.stencilInitialized = true
      }

      $scope.morphShape = function () {
        $scope.safeApply(function () {
          var shapes = $rootScope.editor.getSelection()
          if (shapes && shapes.length == 1) {
            $rootScope.currentSelectedShape = shapes.first()
            var stencilItem = $scope.getStencilItemById($rootScope.currentSelectedShape.getStencil().idWithoutNs())
            var morphShapes = []
            for (var i = 0; i < $scope.morphRoles.length; i++) {
              if ($scope.morphRoles[i].role === stencilItem.morphRole) {
                morphShapes = $scope.morphRoles[i].morphOptions.slice()
              }
            }

            // Method to open shape select dialog (used later on)
            var showSelectShapeDialog = function () {
              $rootScope.morphShapes = morphShapes
              $modal({
                backdrop: false,
                keyboard: true,
                template: 'editor-app/popups/select-shape.html?version=' + Date.now()
              })
            }

            showSelectShapeDialog()
          }
        })
      }

      $scope.deleteShape = function () {
        KISBPM.TOOLBAR.ACTIONS.deleteItem({ '$scope': $scope })
      }

      $scope.quickAddItem = function (newItemId) {
        $scope.safeApply(function () {
          var shapes = $rootScope.editor.getSelection()
          if (shapes && shapes.length == 1) {
            $rootScope.currentSelectedShape = shapes.first()

            var containedStencil = undefined
            var stencilSets = $scope.editor.getStencilSets().values()
            for (var i = 0; i < stencilSets.length; i++) {
              var stencilSet = stencilSets[i]
              var nodes = stencilSet.nodes()
              for (var j = 0; j < nodes.length; j++) {
                if (nodes[j].idWithoutNs() === newItemId) {
                  containedStencil = nodes[j]
                  break
                }
              }
            }

            if (!containedStencil) return

            var option = {
              type: $scope.currentSelectedShape.getStencil().namespace() + newItemId,
              namespace: $scope.currentSelectedShape.getStencil().namespace()
            }
            option['connectedShape'] = $rootScope.currentSelectedShape
            option['parent'] = $rootScope.currentSelectedShape.parent
            option['containedStencil'] = containedStencil

            var args = { sourceShape: $rootScope.currentSelectedShape, targetStencil: containedStencil }
            var targetStencil = $scope.editor.getRules().connectMorph(args)
            if (!targetStencil) {
              return
            }// Check if there can be a target shape
            option['connectingType'] = targetStencil.id()

            var command = new KISBPM.CreateCommand(option, undefined, undefined, $scope.editor)

            $scope.editor.executeCommands([command])
          }
        })
      }
    }) // end of $scope.editorFactory.promise block

    /* Click handler for clicking a property */
    $scope.propertyClicked = function (index) {
      if (!$scope.selectedItem.properties[index].hidden) {
        $scope.selectedItem.properties[index].mode = 'write'
      }
    }

    /* Helper method to retrieve the template url for a property */
    $scope.getPropertyTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].templateUrl
    }
    $scope.getPropertyReadModeTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].readModeTemplateUrl
    }
    $scope.getPropertyWriteModeTemplateUrl = function (index) {
      return $scope.selectedItem.properties[index].writeModeTemplateUrl
    }

    /* Method available to all sub controllers (for property controllers) to update the internal Oryx model */
    $scope.updatePropertyInModel = function (property, shapeId) {
      var shape = $scope.selectedShape
      // Some updates may happen when selected shape is already changed, so when an additional
      // shapeId is supplied, we need to make sure the correct shape is updated (current or previous)
      if (shapeId) {
        if (shape.id != shapeId && $scope.previousSelectedShape && $scope.previousSelectedShape.id == shapeId) {
          shape = $scope.previousSelectedShape
        } else {
          shape = null
        }
      }

      if (!shape) {
        // When no shape is selected, or no shape is found for the alternative
        // shape ID, do nothing
        return
      }
      var key = property.key
      var newValue = property.value
      var oldValue = shape.properties[key]

      if (newValue != oldValue) {
        var commandClass = ORYX.Core.Command.extend({
          construct: function () {
            this.key = key
            this.oldValue = oldValue
            this.newValue = newValue
            this.shape = shape
            this.facade = $scope.editor
          },
          execute: function () {
            this.shape.setProperty(this.key, this.newValue)
            this.facade.getCanvas().update()
            this.facade.updateSelection()
          },
          rollback: function () {
            this.shape.setProperty(this.key, this.oldValue)
            this.facade.getCanvas().update()
            this.facade.updateSelection()
          }
        })
        // Instantiate the class
        var command = new commandClass()

        // Execute the command
        $scope.editor.executeCommands([command])
        $scope.editor.handleEvents({
          type: ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED,
          elements: [shape],
          key: key
        })

        // Switch the property back to read mode, now the update is done
        property.mode = 'read'

        // Fire event to all who is interested
        // Fire event to all who want to know about this
        var event = {
          type: KISBPM.eventBus.EVENT_TYPE_PROPERTY_VALUE_CHANGED,
          property: property,
          oldValue: oldValue,
          newValue: newValue
        }
        KISBPM.eventBus.dispatch(event.type, event)
      } else {
        // Switch the property back to read mode, no update was needed
        property.mode = 'read'
      }
    }

    /**
     * Helper method that searches a group for an item with the given id.
     * If not found, will return undefined.
     */
    $scope.findStencilItemInGroup = function (stencilItemId, group) {
      var item

      // Check all items directly in this group
      for (var j = 0; j < group.items.length; j++) {
        item = group.items[j]
        if (item.id === stencilItemId) {
          return item
        }
      }

      // Check the child groups
      if (group.groups && group.groups.length > 0) {
        for (var k = 0; k < group.groups.length; k++) {
          item = $scope.findStencilItemInGroup(stencilItemId, group.groups[k])
          if (item) {
            return item
          }
        }
      }

      return undefined
    }

    /**
     * Helper method to find a stencil item.
     */
    $scope.getStencilItemById = function (stencilItemId) {
      for (var i = 0; i < $scope.stencilItemGroups.length; i++) {
        var element = $scope.stencilItemGroups[i]

        // Real group
        if (element.items !== null && element.items !== undefined) {
          var item = $scope.findStencilItemInGroup(stencilItemId, element)
          if (item) {
            return item
          }
        } else { // Root stencil item
          if (element.id === stencilItemId) {
            return element
          }
        }
      }
      return undefined
    }

    /*
     * DRAG AND DROP FUNCTIONALITY
     */

    $scope.dropCallback = function (event, ui) {
      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: 'shapeRepo.attached'
      })
      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: 'shapeRepo.added'
      })

      $scope.editor.handleEvents({
        type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
        highlightId: 'shapeMenu'
      })

      KISBPM.eventBus.dispatch(KISBPM.eventBus.EVENT_TYPE_HIDE_SHAPE_BUTTONS)

      if ($scope.dragCanContain) {
        var item = $scope.getStencilItemById(ui.draggable[0].id)

        var pos = { x: event.pageX, y: event.pageY }

        var additionalIEZoom = 1
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent
          if (ua.indexOf('MSIE') >= 0) {
            // IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100)
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100
            }
          }
        }

        var screenCTM = $scope.editor.getCanvas().node.getScreenCTM()

        // Correcting the UpperLeft-Offset
        pos.x -= (screenCTM.e / additionalIEZoom)
        pos.y -= (screenCTM.f / additionalIEZoom)
        // Correcting the Zoom-Factor
        pos.x /= screenCTM.a
        pos.y /= screenCTM.d

        // Correcting the ScrollOffset
        pos.x -= document.documentElement.scrollLeft
        pos.y -= document.documentElement.scrollTop

        var parentAbs = $scope.dragCurrentParent.absoluteXY()
        pos.x -= parentAbs.x
        pos.y -= parentAbs.y

        var containedStencil = undefined
        var stencilSets = $scope.editor.getStencilSets().values()
        for (var i = 0; i < stencilSets.length; i++) {
          var stencilSet = stencilSets[i]
          var nodes = stencilSet.nodes()
          for (var j = 0; j < nodes.length; j++) {
            if (nodes[j].idWithoutNs() === ui.draggable[0].id) {
              containedStencil = nodes[j]
              break
            }
          }

          if (!containedStencil) {
            var edges = stencilSet.edges()
            for (var j = 0; j < edges.length; j++) {
              if (edges[j].idWithoutNs() === ui.draggable[0].id) {
                containedStencil = edges[j]
                break
              }
            }
          }
        }

        if (!containedStencil) return

        if ($scope.quickMenu) {
          var shapes = $scope.editor.getSelection()
          if (shapes && shapes.length == 1) {
            var currentSelectedShape = shapes.first()

            var option = {}
            option.type = currentSelectedShape.getStencil().namespace() + ui.draggable[0].id
            option.namespace = currentSelectedShape.getStencil().namespace()
            option.connectedShape = currentSelectedShape
            option.parent = $scope.dragCurrentParent
            option.containedStencil = containedStencil

            // If the ctrl key is not pressed,
            // snapp the new shape to the center
            // if it is near to the center of the other shape
            if (!event.ctrlKey) {
              // Get the center of the shape
              var cShape = currentSelectedShape.bounds.center()
              // Snapp +-20 Pixel horizontal to the center
              if (Math.abs(cShape.x - pos.x) < 20) {
                pos.x = cShape.x
              }
              // Snapp +-20 Pixel vertical to the center
              if (Math.abs(cShape.y - pos.y) < 20) {
                pos.y = cShape.y
              }
            }

            option.position = pos

            if (containedStencil.idWithoutNs() !== 'SequenceFlow' && containedStencil.idWithoutNs() !== 'Association' &&
              containedStencil.idWithoutNs() !== 'MessageFlow' && containedStencil.idWithoutNs() !== 'DataAssociation') {
              var args = { sourceShape: currentSelectedShape, targetStencil: containedStencil }
              var targetStencil = $scope.editor.getRules().connectMorph(args)
              if (!targetStencil) {
                return
              }// Check if there can be a target shape
              option.connectingType = targetStencil.id()
            }

            var command = new KISBPM.CreateCommand(option, $scope.dropTargetElement, pos, $scope.editor)

            $scope.editor.executeCommands([command])
          }
        } else {
          var canAttach = false
          if (containedStencil.idWithoutNs() === 'BoundaryErrorEvent' || containedStencil.idWithoutNs() === 'BoundaryTimerEvent' ||
            containedStencil.idWithoutNs() === 'BoundarySignalEvent' || containedStencil.idWithoutNs() === 'BoundaryMessageEvent' ||
            containedStencil.idWithoutNs() === 'BoundaryCancelEvent' || containedStencil.idWithoutNs() === 'BoundaryCompensationEvent') {
            // Modify position, otherwise boundary event will get position related to left corner of the canvas instead of the container
            pos = $scope.editor.eventCoordinates(event)
            canAttach = true
          }

          var option = {}
          option['type'] = $scope.modelData.model.stencilset.namespace + item.id
          option['namespace'] = $scope.modelData.model.stencilset.namespace
          option['position'] = pos
          option['parent'] = $scope.dragCurrentParent

          var commandClass = ORYX.Core.Command.extend({
            construct: function (option, dockedShape, canAttach, position, facade) {
              this.option = option
              this.docker = null
              this.dockedShape = dockedShape
              this.dockedShapeParent = dockedShape.parent || facade.getCanvas()
              this.position = position
              this.facade = facade
              this.selection = this.facade.getSelection()
              this.shape = null
              this.parent = null
              this.canAttach = canAttach
            },
            execute: function () {
              if (!this.shape) {
                this.shape = this.facade.createShape(option)
                this.parent = this.shape.parent
              } else if (this.parent) {
                this.parent.add(this.shape)
              }

              if (this.canAttach && this.shape.dockers && this.shape.dockers.length) {
                this.docker = this.shape.dockers[0]

                this.dockedShapeParent.add(this.docker.parent)

                // Set the Docker to the new Shape
                this.docker.setDockedShape(undefined)
                this.docker.bounds.centerMoveTo(this.position)
                if (this.dockedShape !== this.facade.getCanvas()) {
                  this.docker.setDockedShape(this.dockedShape)
                }
                this.facade.setSelection([this.docker.parent])
              }

              this.facade.getCanvas().update()
              this.facade.updateSelection()
            },
            rollback: function () {
              if (this.shape) {
                this.facade.setSelection(this.selection.without(this.shape))
                this.facade.deleteShape(this.shape)
              }
              if (this.canAttach && this.docker) {
                this.docker.setDockedShape(undefined)
              }
              this.facade.getCanvas().update()
              this.facade.updateSelection()
            }
          })

          // Update canvas
          var command = new commandClass(option, $scope.dragCurrentParent, canAttach, pos, $scope.editor)
          $scope.editor.executeCommands([command])

          // Fire event to all who want to know about this
          var dropEvent = {
            type: KISBPM.eventBus.EVENT_TYPE_ITEM_DROPPED,
            droppedItem: item,
            position: pos
          }
          KISBPM.eventBus.dispatch(dropEvent.type, dropEvent)
        }
      }

      $scope.dragCurrentParent = undefined
      $scope.dragCurrentParentId = undefined
      $scope.dragCurrentParentStencil = undefined
      $scope.dragCanContain = undefined
      $scope.quickMenu = undefined
      $scope.dropTargetElement = undefined
    }

    $scope.overCallback = function (event, ui) {
      $scope.dragModeOver = true
    }

    $scope.outCallback = function (event, ui) {
      $scope.dragModeOver = false
    }

    $scope.startDragCallback = function (event, ui) {
      $scope.dragModeOver = false
      $scope.quickMenu = false
      if (!ui.helper.hasClass('stencil-item-dragged')) {
        ui.helper.addClass('stencil-item-dragged')
      }
    }

    $scope.startDragCallbackQuickMenu = function (event, ui) {
      $scope.dragModeOver = false
      $scope.quickMenu = true
    }

    $scope.dragCallback = function (event, ui) {
      if ($scope.dragModeOver != false) {
        var coord = $scope.editor.eventCoordinatesXY(event.pageX, event.pageY)

        var additionalIEZoom = 1
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent
          if (ua.indexOf('MSIE') >= 0) {
            // IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100)
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100
            }
          }
        }

        if (additionalIEZoom !== 1) {
          coord.x = coord.x / additionalIEZoom
          coord.y = coord.y / additionalIEZoom
        }

        var aShapes = $scope.editor.getCanvas().getAbstractShapesAtPosition(coord)

        if (aShapes.length <= 0) {
          if (event.helper) {
            $scope.dragCanContain = false
            return false
          }
        }

        if (aShapes[0] instanceof ORYX.Core.Canvas) {
          $scope.editor.getCanvas().setHightlightStateBasedOnX(coord.x)
        }

        if (aShapes.length == 1 && aShapes[0] instanceof ORYX.Core.Canvas) {
          var parentCandidate = aShapes[0]

          $scope.dragCanContain = true
          $scope.dragCurrentParent = parentCandidate
          $scope.dragCurrentParentId = parentCandidate.id

          $scope.editor.handleEvents({
            type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
            highlightId: 'shapeRepo.attached'
          })
          $scope.editor.handleEvents({
            type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
            highlightId: 'shapeRepo.added'
          })
          return false
        } else {
          var item = $scope.getStencilItemById(event.target.id)

          var parentCandidate = aShapes.reverse().find(function (candidate) {
            return (candidate instanceof ORYX.Core.Canvas ||
              candidate instanceof ORYX.Core.Node ||
              candidate instanceof ORYX.Core.Edge)
          })

          if (!parentCandidate) {
            $scope.dragCanContain = false
            return false
          }

          if (item.type === 'node') {
            // check if the draggable is a boundary event and the parent an Activity
            var _canContain = false
            var parentStencilId = parentCandidate.getStencil().id()

            if ($scope.dragCurrentParentId && $scope.dragCurrentParentId === parentCandidate.id) {
              return false
            }

            var parentItem = $scope.getStencilItemById(parentCandidate.getStencil().idWithoutNs())
            if (parentItem.roles.indexOf('Activity') > -1) {
              if (item.roles.indexOf('IntermediateEventOnActivityBoundary') > -1) {
                _canContain = true
              }
            } else if (parentCandidate.getStencil().idWithoutNs() === 'Pool') {
              if (item.id === 'Lane') {
                _canContain = true
              }
            }

            if (_canContain) {
              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
                highlightId: 'shapeRepo.attached',
                elements: [parentCandidate],
                style: ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE,
                color: ORYX.CONFIG.SELECTION_VALID_COLOR
              })

              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
                highlightId: 'shapeRepo.added'
              })
            } else {
              for (var i = 0; i < $scope.containmentRules.length; i++) {
                var rule = $scope.containmentRules[i]
                if (rule.role === parentItem.id) {
                  for (var j = 0; j < rule.contains.length; j++) {
                    if (item.roles.indexOf(rule.contains[j]) > -1) {
                      _canContain = true
                      break
                    }
                  }

                  if (_canContain) {
                    break
                  }
                }
              }

              // Show Highlight
              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
                highlightId: 'shapeRepo.added',
                elements: [parentCandidate],
                color: _canContain ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
              })

              $scope.editor.handleEvents({
                type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
                highlightId: 'shapeRepo.attached'
              })
            }

            $scope.dragCurrentParent = parentCandidate
            $scope.dragCurrentParentId = parentCandidate.id
            $scope.dragCurrentParentStencil = parentStencilId
            $scope.dragCanContain = _canContain
          } else {
            var canvasCandidate = $scope.editor.getCanvas()
            var canConnect = false

            var targetStencil = $scope.getStencilItemById(parentCandidate.getStencil().idWithoutNs())
            if (targetStencil) {
              var associationConnect = false
              if (stencil.idWithoutNs() === 'Association' && (curCan.getStencil().idWithoutNs() === 'TextAnnotation' || curCan.getStencil().idWithoutNs() === 'BoundaryCompensationEvent')) {
                associationConnect = true
              } else if (stencil.idWithoutNs() === 'DataAssociation' && curCan.getStencil().idWithoutNs() === 'DataStore') {
                associationConnect = true
              }

              if (targetStencil.canConnectTo || associationConnect) {
                canConnect = true
              }
            }

            // Edge
            $scope.dragCurrentParent = canvasCandidate
            $scope.dragCurrentParentId = canvasCandidate.id
            $scope.dragCurrentParentStencil = canvasCandidate.getStencil().id()
            $scope.dragCanContain = canConnect

            // Show Highlight
            $scope.editor.handleEvents({
              type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
              highlightId: 'shapeRepo.added',
              elements: [canvasCandidate],
              color: ORYX.CONFIG.SELECTION_VALID_COLOR
            })

            $scope.editor.handleEvents({
              type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
              highlightId: 'shapeRepo.attached'
            })
          }
        }
      }
    }

    $scope.dragCallbackQuickMenu = function (event, ui) {
      if ($scope.dragModeOver != false) {
        var coord = $scope.editor.eventCoordinatesXY(event.pageX, event.pageY)

        var additionalIEZoom = 1
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
          var ua = navigator.userAgent
          if (ua.indexOf('MSIE') >= 0) {
            // IE 10 and below
            var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100)
            if (zoom !== 100) {
              additionalIEZoom = zoom / 100
            }
          }
        }

        if (additionalIEZoom !== 1) {
          coord.x = coord.x / additionalIEZoom
          coord.y = coord.y / additionalIEZoom
        }

        var aShapes = $scope.editor.getCanvas().getAbstractShapesAtPosition(coord)

        if (aShapes.length <= 0) {
          if (event.helper) {
            $scope.dragCanContain = false
            return false
          }
        }

        if (aShapes[0] instanceof ORYX.Core.Canvas) {
          $scope.editor.getCanvas().setHightlightStateBasedOnX(coord.x)
        }

        var stencil = undefined
        var stencilSets = $scope.editor.getStencilSets().values()
        for (var i = 0; i < stencilSets.length; i++) {
          var stencilSet = stencilSets[i]
          var nodes = stencilSet.nodes()
          for (var j = 0; j < nodes.length; j++) {
            if (nodes[j].idWithoutNs() === event.target.id) {
              stencil = nodes[j]
              break
            }
          }

          if (!stencil) {
            var edges = stencilSet.edges()
            for (var j = 0; j < edges.length; j++) {
              if (edges[j].idWithoutNs() === event.target.id) {
                stencil = edges[j]
                break
              }
            }
          }
        }

        var candidate = aShapes.last()

        var isValid = false
        if (stencil.type() === 'node') {
          // check containment rules
          var canContain = $scope.editor.getRules().canContain({
            containingShape: candidate,
            containedStencil: stencil
          })

          var parentCandidate = aShapes.reverse().find(function (candidate) {
            return (candidate instanceof ORYX.Core.Canvas ||
              candidate instanceof ORYX.Core.Node ||
              candidate instanceof ORYX.Core.Edge)
          })

          if (!parentCandidate) {
            $scope.dragCanContain = false
            return false
          }

          $scope.dragCurrentParent = parentCandidate
          $scope.dragCurrentParentId = parentCandidate.id
          $scope.dragCurrentParentStencil = parentCandidate.getStencil().id()
          $scope.dragCanContain = canContain
          $scope.dropTargetElement = parentCandidate
          isValid = canContain
        } else { // Edge
          var shapes = $scope.editor.getSelection()
          if (shapes && shapes.length == 1) {
            var currentSelectedShape = shapes.first()
            var curCan = candidate
            var canConnect = false

            var targetStencil = $scope.getStencilItemById(curCan.getStencil().idWithoutNs())
            if (targetStencil) {
              var associationConnect = false
              if (stencil.idWithoutNs() === 'Association' && (curCan.getStencil().idWithoutNs() === 'TextAnnotation' || curCan.getStencil().idWithoutNs() === 'BoundaryCompensationEvent')) {
                associationConnect = true
              } else if (stencil.idWithoutNs() === 'DataAssociation' && curCan.getStencil().idWithoutNs() === 'DataStore') {
                associationConnect = true
              }

              if (targetStencil.canConnectTo || associationConnect) {
                while (!canConnect && curCan && !(curCan instanceof ORYX.Core.Canvas)) {
                  candidate = curCan
                  // check connection rules
                  canConnect = $scope.editor.getRules().canConnect({
                    sourceShape: currentSelectedShape,
                    edgeStencil: stencil,
                    targetShape: curCan
                  })
                  curCan = curCan.parent
                }
              }
            }
            var parentCandidate = $scope.editor.getCanvas()

            isValid = canConnect
            $scope.dragCurrentParent = parentCandidate
            $scope.dragCurrentParentId = parentCandidate.id
            $scope.dragCurrentParentStencil = parentCandidate.getStencil().id()
            $scope.dragCanContain = canConnect
            $scope.dropTargetElement = candidate
          }
        }

        $scope.editor.handleEvents({
          type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
          highlightId: 'shapeMenu',
          elements: [candidate],
          color: isValid ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
        })
      }
    }
  }])

var KISBPM = KISBPM || {}
// create command for undo/redo
KISBPM.CreateCommand = ORYX.Core.Command.extend({
  construct: function (option, currentReference, position, facade) {
    this.option = option
    this.currentReference = currentReference
    this.position = position
    this.facade = facade
    this.shape
    this.edge
    this.targetRefPos
    this.sourceRefPos
    /*
     * clone options parameters
     */
    this.connectedShape = option.connectedShape
    this.connectingType = option.connectingType
    this.namespace = option.namespace
    this.type = option.type
    this.containedStencil = option.containedStencil
    this.parent = option.parent
    this.currentReference = currentReference
    this.shapeOptions = option.shapeOptions
  },
  execute: function () {
    if (this.shape) {
      if (this.shape instanceof ORYX.Core.Node) {
        this.parent.add(this.shape)
        if (this.edge) {
          this.facade.getCanvas().add(this.edge)
          this.edge.dockers.first().setDockedShape(this.connectedShape)
          this.edge.dockers.first().setReferencePoint(this.sourceRefPos)
          this.edge.dockers.last().setDockedShape(this.shape)
          this.edge.dockers.last().setReferencePoint(this.targetRefPos)
        }

        this.facade.setSelection([this.shape])
      } else if (this.shape instanceof ORYX.Core.Edge) {
        this.facade.getCanvas().add(this.shape)
        this.shape.dockers.first().setDockedShape(this.connectedShape)
        this.shape.dockers.first().setReferencePoint(this.sourceRefPos)
      }
    } else {
      this.shape = this.facade.createShape(this.option)
      this.edge = (!(this.shape instanceof ORYX.Core.Edge)) ? this.shape.getIncomingShapes().first() : undefined
    }

    if (this.currentReference && this.position) {
      if (this.shape instanceof ORYX.Core.Edge) {
        if (!(this.currentReference instanceof ORYX.Core.Canvas)) {
          this.shape.dockers.last().setDockedShape(this.currentReference)

          if (this.currentReference.getStencil().idWithoutNs() === 'TextAnnotation') {
            var midpoint = {}
            midpoint.x = 0
            midpoint.y = this.currentReference.bounds.height() / 2
            this.shape.dockers.last().setReferencePoint(midpoint)
          } else {
            this.shape.dockers.last().setReferencePoint(this.currentReference.bounds.midPoint())
          }
        } else {
          this.shape.dockers.last().bounds.centerMoveTo(this.position)
        }
        this.sourceRefPos = this.shape.dockers.first().referencePoint
        this.targetRefPos = this.shape.dockers.last().referencePoint
      } else if (this.edge) {
        this.sourceRefPos = this.edge.dockers.first().referencePoint
        this.targetRefPos = this.edge.dockers.last().referencePoint
      }
    } else {
      var containedStencil = this.containedStencil
      var connectedShape = this.connectedShape
      var bc = connectedShape.bounds
      var bs = this.shape.bounds

      var pos = bc.center()
      if (containedStencil.defaultAlign() === 'north') {
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height() / 2)
      } else if (containedStencil.defaultAlign() === 'northeast') {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2)
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2)
      } else if (containedStencil.defaultAlign() === 'southeast') {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2)
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2)
      } else if (containedStencil.defaultAlign() === 'south') {
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height() / 2)
      } else if (containedStencil.defaultAlign() === 'southwest') {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2)
        pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2)
      } else if (containedStencil.defaultAlign() === 'west') {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width() / 2)
      } else if (containedStencil.defaultAlign() === 'northwest') {
        pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width() / 2)
        pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height() / 2)
      } else {
        pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width() / 2)
      }

      // Move shape to the new position
      this.shape.bounds.centerMoveTo(pos)

      // Move all dockers of a node to the position
      if (this.shape instanceof ORYX.Core.Node) {
        (this.shape.dockers || []).each(function (docker) {
          docker.bounds.centerMoveTo(pos)
        })
      }

      // this.shape.update();
      this.position = pos

      if (this.edge) {
        this.sourceRefPos = this.edge.dockers.first().referencePoint
        this.targetRefPos = this.edge.dockers.last().referencePoint
      }
    }

    this.facade.getCanvas().update()
    this.facade.updateSelection()
  },
  rollback: function () {
    this.facade.deleteShape(this.shape)
    if (this.edge) {
      this.facade.deleteShape(this.edge)
    }
    // this.currentParent.update();
    this.facade.setSelection(this.facade.getSelection().without(this.shape, this.edge))
  }
})