###
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Chosen source: generate output using 'cake build'
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Copyright (c) 2011 by Harvest
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###
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root = this
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$ = jQuery
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$.fn.extend({
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chosen: (options) ->
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# Do no harm and return as soon as possible for unsupported browsers, namely IE6 and IE7
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# Continue on if running IE document type but in compatibility mode
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return this if $.browser.msie and ($.browser.version is "6.0" or ($.browser.version is "7.0" and document.documentMode is 7 ))
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this.each((input_field) ->
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$this = $ this
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$this.data('chosen', new Chosen(this, options)) unless $this.hasClass "chzn-done"
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)
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})
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class Chosen extends AbstractChosen
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setup: ->
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@form_field_jq = $ @form_field
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@current_value = @form_field_jq.val()
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@is_rtl = @form_field_jq.hasClass "chzn-rtl"
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finish_setup: ->
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@form_field_jq.addClass "chzn-done"
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set_up_html: ->
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@container_id = if @form_field.id.length then @form_field.id.replace(/[^\w]/g, '_') else this.generate_field_id()
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@container_id += "_chzn"
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@f_width = @form_field_jq.outerWidth()
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container_div = ($ "<div />", {
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id: @container_id
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class: "chzn-container#{ if @is_rtl then ' chzn-rtl' else '' }"
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style: 'width: ' + (@f_width) + 'px;' #use parens around @f_width so coffeescript doesn't think + ' px' is a function parameter
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})
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if @is_multiple
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container_div.html '<ul class="chzn-choices"><li class="search-field"><input type="text" value="' + @default_text + '" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>'
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else
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container_div.html '<a href="javascript:void(0)" class="chzn-single chzn-default" tabindex="-1"><span>' + @default_text + '</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'
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@form_field_jq.hide().after container_div
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@container = ($ '#' + @container_id)
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@container.addClass( "chzn-container-" + (if @is_multiple then "multi" else "single") )
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@dropdown = @container.find('div.chzn-drop').first()
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dd_top = @container.height()
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dd_width = (@f_width - get_side_border_padding(@dropdown))
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@dropdown.css({"width": dd_width + "px", "top": dd_top + "px"})
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@search_field = @container.find('input').first()
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@search_results = @container.find('ul.chzn-results').first()
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this.search_field_scale()
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@search_no_results = @container.find('li.no-results').first()
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if @is_multiple
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@search_choices = @container.find('ul.chzn-choices').first()
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@search_container = @container.find('li.search-field').first()
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else
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@search_container = @container.find('div.chzn-search').first()
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@selected_item = @container.find('.chzn-single').first()
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sf_width = dd_width - get_side_border_padding(@search_container) - get_side_border_padding(@search_field)
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@search_field.css( {"width" : sf_width + "px"} )
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this.results_build()
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this.set_tab_index()
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@form_field_jq.trigger("liszt:ready", {chosen: this})
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register_observers: ->
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@container.mousedown (evt) => this.container_mousedown(evt)
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@container.mouseup (evt) => this.container_mouseup(evt)
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@container.mouseenter (evt) => this.mouse_enter(evt)
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@container.mouseleave (evt) => this.mouse_leave(evt)
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@search_results.mouseup (evt) => this.search_results_mouseup(evt)
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@search_results.mouseover (evt) => this.search_results_mouseover(evt)
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@search_results.mouseout (evt) => this.search_results_mouseout(evt)
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@form_field_jq.bind "liszt:updated", (evt) => this.results_update_field(evt)
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@form_field_jq.bind "liszt:activate", (evt) => this.activate_field(evt)
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@form_field_jq.bind "liszt:open", (evt) => this.container_mousedown(evt)
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@search_field.blur (evt) => this.input_blur(evt)
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@search_field.keyup (evt) => this.keyup_checker(evt)
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@search_field.keydown (evt) => this.keydown_checker(evt)
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@search_field.focus (evt) => this.input_focus(evt)
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if @is_multiple
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@search_choices.click (evt) => this.choices_click(evt)
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else
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@container.click (evt) => evt.preventDefault() # gobble click of anchor
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search_field_disabled: ->
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@is_disabled = @form_field_jq[0].disabled
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if(@is_disabled)
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@container.addClass 'chzn-disabled'
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@search_field[0].disabled = true
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@selected_item.unbind "focus", @activate_action if !@is_multiple
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this.close_field()
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else
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@container.removeClass 'chzn-disabled'
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@search_field[0].disabled = false
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@selected_item.bind "focus", @activate_action if !@is_multiple
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container_mousedown: (evt) ->
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if !@is_disabled
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target_closelink = if evt? then ($ evt.target).hasClass "search-choice-close" else false
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if evt and evt.type is "mousedown" and not @results_showing
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evt.stopPropagation()
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if not @pending_destroy_click and not target_closelink
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if not @active_field
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@search_field.val "" if @is_multiple
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$(document).click @click_test_action
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this.results_show()
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else if not @is_multiple and evt and (($(evt.target)[0] == @selected_item[0]) || $(evt.target).parents("a.chzn-single").length)
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evt.preventDefault()
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this.results_toggle()
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this.activate_field()
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else
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@pending_destroy_click = false
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container_mouseup: (evt) ->
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this.results_reset(evt) if evt.target.nodeName is "ABBR" and not @is_disabled
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blur_test: (evt) ->
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this.close_field() if not @active_field and @container.hasClass "chzn-container-active"
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close_field: ->
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$(document).unbind "click", @click_test_action
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@active_field = false
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this.results_hide()
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@container.removeClass "chzn-container-active"
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this.winnow_results_clear()
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this.clear_backstroke()
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this.show_search_field_default()
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this.search_field_scale()
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activate_field: ->
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@container.addClass "chzn-container-active"
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@active_field = true
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@search_field.val(@search_field.val())
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@search_field.focus()
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test_active_click: (evt) ->
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if $(evt.target).parents('#' + @container_id).length
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@active_field = true
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else
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this.close_field()
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results_build: ->
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@parsing = true
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@results_data = root.SelectParser.select_to_array @form_field
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if @is_multiple and @choices > 0
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@search_choices.find("li.search-choice").remove()
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@choices = 0
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else if not @is_multiple
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@selected_item.addClass("chzn-default").find("span").text(@default_text)
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if @disable_search or @form_field.options.length <= @disable_search_threshold
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@container.addClass "chzn-container-single-nosearch"
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else
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@container.removeClass "chzn-container-single-nosearch"
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content = ''
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for data in @results_data
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if data.group
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content += this.result_add_group data
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else if !data.empty
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content += this.result_add_option data
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if data.selected and @is_multiple
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this.choice_build data
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else if data.selected and not @is_multiple
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@selected_item.removeClass("chzn-default").find("span").text data.text
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this.single_deselect_control_build() if @allow_single_deselect
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this.search_field_disabled()
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this.show_search_field_default()
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this.search_field_scale()
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@search_results.html content
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@parsing = false
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result_add_group: (group) ->
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if not group.disabled
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group.dom_id = @container_id + "_g_" + group.array_index
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'<li id="' + group.dom_id + '" class="group-result">' + $("<div />").text(group.label).html() + '</li>'
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else
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""
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result_do_highlight: (el) ->
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if el.length
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this.result_clear_highlight()
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@result_highlight = el
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@result_highlight.addClass "highlighted"
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maxHeight = parseInt @search_results.css("maxHeight"), 10
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visible_top = @search_results.scrollTop()
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visible_bottom = maxHeight + visible_top
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high_top = @result_highlight.position().top + @search_results.scrollTop()
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high_bottom = high_top + @result_highlight.outerHeight()
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if high_bottom >= visible_bottom
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@search_results.scrollTop if (high_bottom - maxHeight) > 0 then (high_bottom - maxHeight) else 0
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else if high_top < visible_top
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@search_results.scrollTop high_top
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result_clear_highlight: ->
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@result_highlight.removeClass "highlighted" if @result_highlight
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@result_highlight = null
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results_show: ->
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if not @is_multiple
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@selected_item.addClass "chzn-single-with-drop"
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if @result_single_selected
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this.result_do_highlight( @result_single_selected )
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else if @max_selected_options <= @choices
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@form_field_jq.trigger("liszt:maxselected", {chosen: this})
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return false
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dd_top = if @is_multiple then @container.height() else (@container.height() - 1)
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@form_field_jq.trigger("liszt:showing_dropdown", {chosen: this})
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@dropdown.css {"top": dd_top + "px", "left":0}
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@results_showing = true
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@search_field.focus()
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@search_field.val @search_field.val()
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this.winnow_results()
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results_hide: ->
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@selected_item.removeClass "chzn-single-with-drop" unless @is_multiple
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this.result_clear_highlight()
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@form_field_jq.trigger("liszt:hiding_dropdown", {chosen: this})
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@dropdown.css {"left":"-9000px"}
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@results_showing = false
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set_tab_index: (el) ->
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if @form_field_jq.attr "tabindex"
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ti = @form_field_jq.attr "tabindex"
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@form_field_jq.attr "tabindex", -1
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@search_field.attr "tabindex", ti
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show_search_field_default: ->
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if @is_multiple and @choices < 1 and not @active_field
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@search_field.val(@default_text)
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@search_field.addClass "default"
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else
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@search_field.val("")
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@search_field.removeClass "default"
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search_results_mouseup: (evt) ->
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target = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
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if target.length
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@result_highlight = target
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this.result_select(evt)
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@search_field.focus()
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search_results_mouseover: (evt) ->
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target = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
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this.result_do_highlight( target ) if target
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search_results_mouseout: (evt) ->
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this.result_clear_highlight() if $(evt.target).hasClass "active-result" or $(evt.target).parents('.active-result').first()
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choices_click: (evt) ->
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evt.preventDefault()
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if( @active_field and not($(evt.target).hasClass "search-choice" or $(evt.target).parents('.search-choice').first) and not @results_showing )
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this.results_show()
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choice_build: (item) ->
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if @is_multiple and @max_selected_options <= @choices
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@form_field_jq.trigger("liszt:maxselected", {chosen: this})
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return false # fire event
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choice_id = @container_id + "_c_" + item.array_index
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@choices += 1
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if item.disabled
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html = '<li class="search-choice search-choice-disabled" id="' + choice_id + '"><span>' + item.html + '</span></li>'
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else
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html = '<li class="search-choice" id="' + choice_id + '"><span>' + item.html + '</span><a href="javascript:void(0)" class="search-choice-close" rel="' + item.array_index + '"></a></li>'
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@search_container.before html
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link = $('#' + choice_id).find("a").first()
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link.click (evt) => this.choice_destroy_link_click(evt)
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choice_destroy_link_click: (evt) ->
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evt.preventDefault()
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if not @is_disabled
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@pending_destroy_click = true
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this.choice_destroy $(evt.target)
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else
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evt.stopPropagation
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choice_destroy: (link) ->
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if this.result_deselect (link.attr "rel")
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@choices -= 1
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this.show_search_field_default()
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this.results_hide() if @is_multiple and @choices > 0 and @search_field.val().length < 1
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link.parents('li').first().remove()
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results_reset: ->
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@form_field.options[0].selected = true
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@selected_item.find("span").text @default_text
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@selected_item.addClass("chzn-default") if not @is_multiple
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this.show_search_field_default()
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this.results_reset_cleanup()
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@form_field_jq.trigger "change"
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this.results_hide() if @active_field
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results_reset_cleanup: ->
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@current_value = @form_field_jq.val()
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@selected_item.find("abbr").remove()
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result_select: (evt) ->
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if @result_highlight
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high = @result_highlight
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high_id = high.attr "id"
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this.result_clear_highlight()
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if @is_multiple
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this.result_deactivate high
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else
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@search_results.find(".result-selected").removeClass "result-selected"
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@result_single_selected = high
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@selected_item.removeClass("chzn-default")
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high.addClass "result-selected"
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position = high_id.substr(high_id.lastIndexOf("_") + 1 )
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item = @results_data[position]
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item.selected = true
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@form_field.options[item.options_index].selected = true
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if @is_multiple
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this.choice_build item
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else
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@selected_item.find("span").first().text item.text
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this.single_deselect_control_build() if @allow_single_deselect
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this.results_hide() unless evt.metaKey and @is_multiple
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@search_field.val ""
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@form_field_jq.trigger "change", {'selected': @form_field.options[item.options_index].value} if @is_multiple || @form_field_jq.val() != @current_value
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@current_value = @form_field_jq.val()
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this.search_field_scale()
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result_activate: (el) ->
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el.addClass("active-result")
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result_deactivate: (el) ->
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el.removeClass("active-result")
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result_deselect: (pos) ->
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result_data = @results_data[pos]
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if not @form_field.options[result_data.options_index].disabled
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result_data.selected = false
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@form_field.options[result_data.options_index].selected = false
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result = $("#" + @container_id + "_o_" + pos)
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result.removeClass("result-selected").addClass("active-result").show()
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this.result_clear_highlight()
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this.winnow_results()
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@form_field_jq.trigger "change", {deselected: @form_field.options[result_data.options_index].value}
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this.search_field_scale()
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return true
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else
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return false
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single_deselect_control_build: ->
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@selected_item.find("span").first().after "<abbr class=\"search-choice-close\"></abbr>" if @allow_single_deselect and @selected_item.find("abbr").length < 1
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winnow_results: ->
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this.no_results_clear()
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results = 0
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searchText = if @search_field.val() is @default_text then "" else $('<div/>').text($.trim(@search_field.val())).html()
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regexAnchor = if @search_contains then "" else "^"
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regex = new RegExp(regexAnchor + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
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zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
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for option in @results_data
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if not option.disabled and not option.empty
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if option.group
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$('#' + option.dom_id).css('display', 'none')
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else if not (@is_multiple and option.selected)
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found = false
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result_id = option.dom_id
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result = $("#" + result_id)
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if regex.test option.html
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found = true
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results += 1
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else if option.html.indexOf(" ") >= 0 or option.html.indexOf("[") == 0
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#TODO: replace this substitution of /\[\]/ with a list of characters to skip.
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parts = option.html.replace(/\[|\]/g, "").split(" ")
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if parts.length
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for part in parts
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if regex.test part
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found = true
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results += 1
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if found
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if searchText.length
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startpos = option.html.search zregex
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text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length)
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text = text.substr(0, startpos) + '<em>' + text.substr(startpos)
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else
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text = option.html
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result.html(text)
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this.result_activate result
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$("#" + @results_data[option.group_array_index].dom_id).css('display', 'list-item') if option.group_array_index?
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else
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this.result_clear_highlight() if @result_highlight and result_id is @result_highlight.attr 'id'
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this.result_deactivate result
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if results < 1 and searchText.length
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this.no_results searchText
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else
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this.winnow_results_set_highlight()
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winnow_results_clear: ->
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@search_field.val ""
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lis = @search_results.find("li")
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for li in lis
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li = $(li)
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if li.hasClass "group-result"
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li.css('display', 'auto')
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else if not @is_multiple or not li.hasClass "result-selected"
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this.result_activate li
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winnow_results_set_highlight: ->
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if not @result_highlight
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selected_results = if not @is_multiple then @search_results.find(".result-selected.active-result") else []
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do_high = if selected_results.length then selected_results.first() else @search_results.find(".active-result").first()
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this.result_do_highlight do_high if do_high?
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no_results: (terms) ->
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no_results_html = $('<li class="no-results">' + @results_none_found + ' "<span></span>"</li>')
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no_results_html.find("span").first().html(terms)
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@search_results.append no_results_html
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no_results_clear: ->
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@search_results.find(".no-results").remove()
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keydown_arrow: ->
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if not @result_highlight
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first_active = @search_results.find("li.active-result").first()
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this.result_do_highlight $(first_active) if first_active
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else if @results_showing
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next_sib = @result_highlight.nextAll("li.active-result").first()
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this.result_do_highlight next_sib if next_sib
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this.results_show() if not @results_showing
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keyup_arrow: ->
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if not @results_showing and not @is_multiple
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this.results_show()
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else if @result_highlight
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prev_sibs = @result_highlight.prevAll("li.active-result")
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if prev_sibs.length
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this.result_do_highlight prev_sibs.first()
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else
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this.results_hide() if @choices > 0
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this.result_clear_highlight()
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keydown_backstroke: ->
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if @pending_backstroke
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this.choice_destroy @pending_backstroke.find("a").first()
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this.clear_backstroke()
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else
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next_available_destroy = @search_container.siblings("li.search-choice").last()
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if next_available_destroy.length and not next_available_destroy.hasClass("search-choice-disabled")
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@pending_backstroke = next_available_destroy
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if @single_backstroke_delete
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@keydown_backstroke()
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else
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@pending_backstroke.addClass "search-choice-focus"
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clear_backstroke: ->
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@pending_backstroke.removeClass "search-choice-focus" if @pending_backstroke
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@pending_backstroke = null
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keydown_checker: (evt) ->
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stroke = evt.which ? evt.keyCode
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this.search_field_scale()
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this.clear_backstroke() if stroke != 8 and this.pending_backstroke
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switch stroke
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when 8
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@backstroke_length = this.search_field.val().length
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break
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when 9
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this.result_select(evt) if this.results_showing and not @is_multiple
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@mouse_on_container = false
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break
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when 13
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evt.preventDefault()
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break
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when 38
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evt.preventDefault()
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this.keyup_arrow()
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break
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when 40
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this.keydown_arrow()
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break
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search_field_scale: ->
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if @is_multiple
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h = 0
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w = 0
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style_block = "position:absolute; left: -1000px; top: -1000px; display:none;"
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styles = ['font-size','font-style', 'font-weight', 'font-family','line-height', 'text-transform', 'letter-spacing']
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for style in styles
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style_block += style + ":" + @search_field.css(style) + ";"
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div = $('<div />', { 'style' : style_block })
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div.text @search_field.val()
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$('body').append div
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w = div.width() + 25
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div.remove()
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if( w > @f_width-10 )
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w = @f_width - 10
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@search_field.css({'width': w + 'px'})
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dd_top = @container.height()
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@dropdown.css({"top": dd_top + "px"})
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generate_random_id: ->
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string = "sel" + this.generate_random_char() + this.generate_random_char() + this.generate_random_char()
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while $("#" + string).length > 0
|
string += this.generate_random_char()
|
string
|
|
get_side_border_padding = (elmt) ->
|
side_border_padding = elmt.outerWidth() - elmt.width()
|
|
root.get_side_border_padding = get_side_border_padding
|
