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= function (initialPageJson, subTopicAllTabLabel) {\r\n  var self = this;\r\n\r\n  self.Name = \"ChapterPageViewModel\";\r\n  self.SubTopicAllTabLabel = subTopicAllTabLabel;\r\n  self.CurrentSelectedTopicId = '';\r\n  //Observables\r\n  self.CurrentChapter = ko.observable(null);\r\n  self.TopicTileSearchTerm = ko.observable('');\r\n  self.CurrentSubTopicTabName = ko.observable(self.SubTopicAllTabLabel)\r\n\r\n  //Computed Variables\r\n  self.TopicGridTopics = ko.computed(function () {\r\n    var topics = [];\r\n    var tileCleanSearchTerm = '';\r\n    if (!!self.TopicTileSearchTerm()) {\r\n      tileCleanSearchTerm = self.TopicTileSearchTerm().trim().toLowerCase().replace(/[^A-zÀ-ÿ0-9 :&_,-]/g, \"\");\r\n    }\r\n    if (!!self.CurrentChapter()) {\r\n      if (tileCleanSearchTerm.length > 2) {\r\n        topics = ko.utils.arrayFilter(self.CurrentChapter().topics(), function (item) {\r\n          return self.TopicTileFilterMatch(tileCleanSearchTerm, item);\r\n        });\r\n      } else {\r\n        topics = self.CurrentChapter().topics();\r\n      }\r\n    }\r\n\r\n    return topics\r\n  });\r\n\r\n  self.CurrentSelectedTopics = ko.computed(function () {\r\n    if (!!self.CurrentChapter() && self.CurrentChapter().topics()) {\r\n      return ko.utils.arrayFilter(self.CurrentChapter().topics(), function (item) {\r\n        return item.Selected();\r\n      });\r\n    }\r\n\r\n    return null;\r\n  });\r\n\r\n  self.Load = function (initialData) {\r\n    if (!!initialData) {\r\n      self.CurrentChapter(new Chapter(initialData));\r\n    }\r\n  };\r\n\r\n  self.TopicTileFilterMatch = function (searchTerm, topicItem) {\r\n    if (!!searchTerm) {\r\n      var isMatch = true;\r\n      var searchTermArr = searchTerm.split(/,| /);\r\n      searchTermArr = $.grep(searchTermArr, function (n) { return (n); });\r\n\r\n      var topicSearchNameArr = topicItem.topicTileSearchName.toLowerCase().split(/,|\\|| /);\r\n      topicSearchNameArr = $.grep(topicSearchNameArr, function (n) { return (n); });\r\n      ko.utils.arrayForEach(searchTermArr, function (termItem) {\r\n        var hasItem = ko.utils.arrayFirst(topicSearchNameArr, function (searchNameItem) {\r\n          return searchNameItem.indexOf(termItem) === 0;\r\n        });\r\n\r\n        if (hasItem == null) {\r\n          isMatch = false;\r\n        }\r\n      });\r\n\r\n      return isMatch;\r\n    } else {\r\n      return true;\r\n    }\r\n  }\r\n\r\n  self.Load(initialPageJson)\r\n};\r\n\r\nko.bindingHandlers.BindTopicTileContentTrigger = {\r\n  init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n  },\r\n  update: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n    var topicItem = valueAccessor();\r\n    if (!!topicItem && !!bindingContext.$root.ChapterPageViewModel.CurrentChapter()) {\r\n      $(element).click(function (ev) {\r\n        ev.preventDefault();\r\n\r\n        var $this = $(this);\r\n        if (topicItem.Selected()) {\r\n          var scrollPosition = Math.ceil($('.topic-help').offset().top + $('.topic-help').outerHeight());\r\n          var qs = \"?scroll=\" + scrollPosition;\r\n          History.pushState({ qs: qs }, History.options.initialTitle, qs);\r\n        } else {\r\n          var scrollPosition = Math.ceil($('.topic-grid').offset().top + $('.topic-grid').outerHeight()) - 30;\r\n          bindingContext.$root.ChapterPageViewModel.CurrentSelectedTopicId = topicItem.id;\r\n          var qs = \"?topic=\" + topicItem.id + \"&scroll=\" + scrollPosition;\r\n          History.pushState({ qs: qs }, History.options.initialTitle, qs);\r\n        }\r\n      });\r\n    }\r\n  }\r\n};\r\n\r\nko.bindingHandlers.BindSubTopicTabChange = {\r\n  init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n  },\r\n  update: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n    var entity = valueAccessor();\r\n    var tabId = $(element).data('tabid');\r\n    if (!!tabId && tabId.length > 0) {\r\n      $(element).click(function (ev) {\r\n        ev.preventDefault();\r\n        var qs = \"?topic=\" + bindingContext.$root.ChapterPageViewModel.CurrentSelectedTopicId + \"&subtopic=\" + tabId + \"&scroll=\" + $(window).scrollTop();\r\n        History.pushState({ qs: qs }, History.options.initialTitle, qs);\r\n      });\r\n    }\r\n  }\r\n};\r\nko.bindingHandlers.BindTopicTileHover = {\r\n\r\n  init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n  },\r\n  update: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n    $(element).on('mouseenter', function () {\r\n      var currentHeight = $(this).parent().height();\r\n      $(this).addClass('tile-hovered');\r\n      $(this).parent().css('height', currentHeight + 'px');\r\n\r\n    });\r\n    $(element).on('mouseleave', function () {\r\n      $(this).parent().css('height', 'auto');\r\n      $(this).removeClass('tile-hovered');\r\n    });\r\n  }\r\n};\r\nko.bindingHandlers.QuestionAccordionTrigger = {\r\n  init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n  },\r\n  update: function (element, valueAccessor, allBindings, viewModel, bindingContext) {\r\n    var question = valueAccessor();\r\n\r\n    $(element).click(function (ev) {\r\n      ev.preventDefault();\r\n      var scrollPosition = bindingContext.$root.SetAccordionExpandCollapse($(this).parent());\r\n      $(\"html, body\").animate({ scrollTop: scrollPosition }, \"slow\");\r\n    });\r\n  }\r\n};"]}