498 lines
14 KiB
CoffeeScript
498 lines
14 KiB
CoffeeScript
class GitLabDropdownFilter
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BLUR_KEYCODES = [27, 40]
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ARROW_KEY_CODES = [38, 40]
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HAS_VALUE_CLASS = "has-value"
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constructor: (@input, @options) ->
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{
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@filterInputBlur = true
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} = @options
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$inputContainer = @input.parent()
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$clearButton = $inputContainer.find('.js-dropdown-input-clear')
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# Clear click
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$clearButton.on 'click', (e) =>
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e.preventDefault()
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e.stopPropagation()
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@input
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.val('')
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.trigger('keyup')
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.focus()
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# Key events
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timeout = ""
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@input.on "keyup", (e) =>
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keyCode = e.which
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return if ARROW_KEY_CODES.indexOf(keyCode) >= 0
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if @input.val() isnt "" and !$inputContainer.hasClass HAS_VALUE_CLASS
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$inputContainer.addClass HAS_VALUE_CLASS
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else if @input.val() is "" and $inputContainer.hasClass HAS_VALUE_CLASS
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$inputContainer.removeClass HAS_VALUE_CLASS
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if keyCode is 13
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return false
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clearTimeout timeout
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timeout = setTimeout =>
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blur_field = @shouldBlur keyCode
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search_text = @input.val()
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if blur_field and @filterInputBlur
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@input.blur()
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if @options.remote
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@options.query search_text, (data) =>
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@options.callback(data)
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else
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@filter search_text
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, 250
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shouldBlur: (keyCode) ->
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return BLUR_KEYCODES.indexOf(keyCode) >= 0
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filter: (search_text) ->
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data = @options.data()
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if data?
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results = data
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if search_text isnt ''
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results = fuzzaldrinPlus.filter(data, search_text,
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key: @options.keys
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)
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@options.callback results
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else
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elements = @options.elements()
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if search_text
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elements.each ->
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$el = $(@)
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matches = fuzzaldrinPlus.match($el.text().trim(), search_text)
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if matches.length
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$el.show()
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else
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$el.hide()
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else
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elements.show()
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class GitLabDropdownRemote
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constructor: (@dataEndpoint, @options) ->
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execute: ->
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if typeof @dataEndpoint is "string"
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@fetchData()
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else if typeof @dataEndpoint is "function"
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if @options.beforeSend
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@options.beforeSend()
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# Fetch the data by calling the data funcfion
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@dataEndpoint "", (data) =>
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if @options.success
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@options.success(data)
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if @options.beforeSend
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@options.beforeSend()
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# Fetch the data through ajax if the data is a string
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fetchData: ->
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$.ajax(
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url: @dataEndpoint,
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dataType: @options.dataType,
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beforeSend: =>
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if @options.beforeSend
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@options.beforeSend()
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success: (data) =>
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if @options.success
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@options.success(data)
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)
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class GitLabDropdown
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LOADING_CLASS = "is-loading"
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PAGE_TWO_CLASS = "is-page-two"
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ACTIVE_CLASS = "is-active"
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currentIndex = -1
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FILTER_INPUT = '.dropdown-input .dropdown-input-field'
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constructor: (@el, @options) ->
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self = @
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selector = $(@el).data "target"
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@dropdown = if selector? then $(selector) else $(@el).parent()
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# Set Defaults
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{
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# If no input is passed create a default one
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@filterInput = @getElement(FILTER_INPUT)
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@highlight = false
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@filterInputBlur = true
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} = @options
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self = @
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# If selector was passed
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if _.isString(@filterInput)
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@filterInput = @getElement(@filterInput)
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searchFields = if @options.search then @options.search.fields else [];
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if @options.data
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# If data is an array
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if _.isArray @options.data
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@fullData = @options.data
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@parseData @options.data
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else
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# Remote data
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@remote = new GitLabDropdownRemote @options.data, {
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dataType: @options.dataType,
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beforeSend: @toggleLoading.bind(@)
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success: (data) =>
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@fullData = data
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@parseData @fullData
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if @options.filterable
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@filterInput.trigger 'keyup'
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}
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# Init filterable
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if @options.filterable
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@filter = new GitLabDropdownFilter @filterInput,
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filterInputBlur: @filterInputBlur
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remote: @options.filterRemote
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query: @options.data
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keys: searchFields
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elements: =>
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selector = '.dropdown-content li:not(.divider)'
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if @dropdown.find('.dropdown-toggle-page').length
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selector = ".dropdown-page-one #{selector}"
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return $(selector)
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data: =>
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return @fullData
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callback: (data) =>
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currentIndex = -1
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@parseData data
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# Event listeners
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@dropdown.on "shown.bs.dropdown", @opened
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@dropdown.on "hidden.bs.dropdown", @hidden
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@dropdown.on "click", ".dropdown-menu, .dropdown-menu-close", @shouldPropagate
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@dropdown.on 'keyup', (e) =>
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if e.which is 27 # Escape key
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$('.dropdown-menu-close', @dropdown).trigger 'click'
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if @dropdown.find(".dropdown-toggle-page").length
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@dropdown.find(".dropdown-toggle-page, .dropdown-menu-back").on "click", (e) =>
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e.preventDefault()
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e.stopPropagation()
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@togglePage()
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if @options.selectable
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selector = ".dropdown-content a"
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if @dropdown.find(".dropdown-toggle-page").length
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selector = ".dropdown-page-one .dropdown-content a"
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@dropdown.on "click", selector, (e) ->
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$el = $(@)
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selected = self.rowClicked $el
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if self.options.clicked
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self.options.clicked(selected, $el, e)
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# Finds an element inside wrapper element
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getElement: (selector) ->
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@dropdown.find selector
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toggleLoading: ->
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$('.dropdown-menu', @dropdown).toggleClass LOADING_CLASS
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togglePage: ->
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menu = $('.dropdown-menu', @dropdown)
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if menu.hasClass(PAGE_TWO_CLASS)
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if @remote
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@remote.execute()
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menu.toggleClass PAGE_TWO_CLASS
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# Focus first visible input on active page
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@dropdown.find('[class^="dropdown-page-"]:visible :text:visible:first').focus()
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parseData: (data) ->
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@renderedData = data
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# Render each row
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html = $.map data, (obj) =>
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return @renderItem(obj)
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if @options.filterable and data.length is 0
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# render no matching results
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html = [@noResults()]
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# Render the full menu
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full_html = @renderMenu(html.join(""))
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@appendMenu(full_html)
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shouldPropagate: (e) =>
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if @options.multiSelect
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$target = $(e.target)
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if not $target.hasClass('dropdown-menu-close') and not $target.hasClass('dropdown-menu-close-icon') and not $target.data('is-link')
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e.stopPropagation()
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return false
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else
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return true
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opened: =>
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@addArrowKeyEvent()
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contentHtml = $('.dropdown-content', @dropdown).html()
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if @remote && contentHtml is ""
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@remote.execute()
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if @options.filterable
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@filterInput.focus()
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@dropdown.trigger('shown.gl.dropdown')
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hidden: (e) =>
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@removeArrayKeyEvent()
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if @options.filterable
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@dropdown
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.find(".dropdown-input-field")
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.blur()
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.val("")
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.trigger("keyup")
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if @dropdown.find(".dropdown-toggle-page").length
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$('.dropdown-menu', @dropdown).removeClass PAGE_TWO_CLASS
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if @options.hidden
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@options.hidden.call(@,e)
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@dropdown.trigger('hidden.gl.dropdown')
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# Render the full menu
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renderMenu: (html) ->
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menu_html = ""
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if @options.renderMenu
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menu_html = @options.renderMenu(html)
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else
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menu_html = "<ul>#{html}</ul>"
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return menu_html
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# Append the menu into the dropdown
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appendMenu: (html) ->
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selector = '.dropdown-content'
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if @dropdown.find(".dropdown-toggle-page").length
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selector = ".dropdown-page-one .dropdown-content"
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$(selector, @dropdown).html html
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# Render the row
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renderItem: (data) ->
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html = ""
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# Divider
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return "<li class='divider'></li>" if data is "divider"
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# Separator is a full-width divider
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return "<li class='separator'></li>" if data is "separator"
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# Header
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return "<li class='dropdown-header'>#{data.header}</li>" if data.header?
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if @options.renderRow
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# Call the render function
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html = @options.renderRow(data)
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else
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if not selected
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value = if @options.id then @options.id(data) else data.id
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fieldName = @options.fieldName
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field = @dropdown.parent().find("input[name='#{fieldName}'][value='#{value}']")
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if field.length
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selected = true
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# Set URL
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if @options.url?
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url = @options.url(data)
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else
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url = if data.url? then data.url else '#'
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# Set Text
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if @options.text?
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text = @options.text(data)
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else
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text = if data.text? then data.text else ''
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cssClass = "";
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if selected
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cssClass = "is-active"
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if @highlight
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text = @highlightTextMatches(text, @filterInput.val())
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html = "<li>
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<a href='#{url}' class='#{cssClass}'>
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#{text}
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</a>
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</li>"
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return html
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highlightTextMatches: (text, term) ->
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occurrences = fuzzaldrinPlus.match(text, term)
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text.split('').map((character, i) ->
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if i in occurrences then "<b>#{character}</b>" else character
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).join('')
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noResults: ->
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html = "<li class='dropdown-menu-empty-link'>
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<a href='#' class='is-focused'>
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No matching results.
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</a>
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</li>"
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highlightRow: (index) ->
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if @filterInput.val() isnt ""
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selector = '.dropdown-content li:first-child a'
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if @dropdown.find(".dropdown-toggle-page").length
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selector = ".dropdown-page-one .dropdown-content li:first-child a"
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@getElement(selector).addClass 'is-focused'
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rowClicked: (el) ->
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fieldName = @options.fieldName
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selectedIndex = el.parent().index()
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if @renderedData
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selectedObject = @renderedData[selectedIndex]
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value = if @options.id then @options.id(selectedObject, el) else selectedObject.id
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field = @dropdown.parent().find("input[name='#{fieldName}'][value='#{value}']")
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if el.hasClass(ACTIVE_CLASS)
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el.removeClass(ACTIVE_CLASS)
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field.remove()
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# Toggle the dropdown label
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if @options.toggleLabel
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$(@el).find(".dropdown-toggle-text").text @options.toggleLabel
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else
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selectedObject
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else
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if not @options.multiSelect or el.hasClass('dropdown-clear-active')
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@dropdown.find(".#{ACTIVE_CLASS}").removeClass ACTIVE_CLASS
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@dropdown.parent().find("input[name='#{fieldName}']").remove()
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if !value?
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field.remove()
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# Toggle active class for the tick mark
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el.addClass ACTIVE_CLASS
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# Toggle the dropdown label
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if @options.toggleLabel
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$(@el).find(".dropdown-toggle-text").text @options.toggleLabel(selectedObject, el)
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if value?
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if !field.length and fieldName
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# Create hidden input for form
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input = "<input type='hidden' name='#{fieldName}' value='#{value}' />"
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if @options.inputId?
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input = $(input)
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.attr('id', @options.inputId)
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@dropdown.before input
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else
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field.val value
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return selectedObject
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selectRowAtIndex: (index) ->
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selector = ".dropdown-content li:not(.divider):eq(#{index}) a"
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if @dropdown.find(".dropdown-toggle-page").length
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selector = ".dropdown-page-one #{selector}"
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# simulate a click on the first link
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$(selector, @dropdown).trigger "click"
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addArrowKeyEvent: ->
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ARROW_KEY_CODES = [38, 40]
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$input = @dropdown.find(".dropdown-input-field")
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selector = '.dropdown-content li:not(.divider)'
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if @dropdown.find(".dropdown-toggle-page").length
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selector = ".dropdown-page-one #{selector}"
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$('body').on 'keydown', (e) =>
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currentKeyCode = e.which
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if ARROW_KEY_CODES.indexOf(currentKeyCode) >= 0
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e.preventDefault()
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e.stopImmediatePropagation()
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PREV_INDEX = currentIndex
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$listItems = $(selector, @dropdown)
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# if @options.filterable
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# $input.blur()
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if currentKeyCode is 40
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# Move down
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currentIndex += 1 if currentIndex < ($listItems.length - 1)
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else if currentKeyCode is 38
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# Move up
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currentIndex -= 1 if currentIndex > 0
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@highlightRowAtIndex($listItems, currentIndex) if currentIndex isnt PREV_INDEX
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return false
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if currentKeyCode is 13
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@selectRowAtIndex currentIndex
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removeArrayKeyEvent: ->
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$('body').off 'keydown'
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highlightRowAtIndex: ($listItems, index) ->
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# Remove the class for the previously focused row
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$('.is-focused', @dropdown).removeClass 'is-focused'
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# Update the class for the row at the specific index
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$listItem = $listItems.eq(index)
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$listItem.find('a:first-child').addClass "is-focused"
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# Dropdown content scroll area
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$dropdownContent = $listItem.closest('.dropdown-content')
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dropdownScrollTop = $dropdownContent.scrollTop()
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dropdownContentHeight = $dropdownContent.outerHeight()
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dropdownContentTop = $dropdownContent.prop('offsetTop')
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dropdownContentBottom = dropdownContentTop + dropdownContentHeight
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# Get the offset bottom of the list item
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listItemHeight = $listItem.outerHeight()
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listItemTop = $listItem.prop('offsetTop')
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listItemBottom = listItemTop + listItemHeight
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if listItemBottom > dropdownContentBottom + dropdownScrollTop
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# Scroll the dropdown content down
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$dropdownContent.scrollTop(listItemBottom - dropdownContentBottom)
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else if listItemTop < dropdownContentTop + dropdownScrollTop
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# Scroll the dropdown content up
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$dropdownContent.scrollTop(listItemTop - dropdownContentTop)
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$.fn.glDropdown = (opts) ->
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return @.each ->
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if (!$.data @, 'glDropdown')
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$.data(@, 'glDropdown', new GitLabDropdown @, opts)
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