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###
Chosen source: generate output using 'cake build'
Copyright (c) 2011 by Harvest
###
root = this
$ = jQuery
$.fn.extend({
chosen: (options) ->
ua = navigator.userAgent.toLowerCase();
match = /(msie) ([\w.]+)/.exec( ua ) || [];
browser =
name: match[ 1 ] || ""
version: match[ 2 ] || "0"
# Do no harm and return as soon as possible for unsupported browsers, namely IE6 and IE7
# Continue on if running IE document type but in compatibility mode
return this if browser.name is "msie" and (browser.version is "6.0" or (browser.version is "7.0" and document.documentMode is 7 ))
this.each((input_field) ->
$this = $ this
$this.data('chosen', new Chosen(this, options)) unless $this.hasClass "chzn-done"
)
})
class Chosen extends AbstractChosen
setup: ->
@form_field_jq = $ @form_field
@current_value = @form_field_jq.val()
@is_rtl = @form_field_jq.hasClass "chzn-rtl"
finish_setup: ->
@form_field_jq.addClass "chzn-done"
set_up_html: ->
@container_id = if @form_field.id.length then @form_field.id.replace(/[^\w]/g, '_') else this.generate_field_id()
@container_id += "_chzn"
container_classes = ["chzn-container"]
container_classes.push "chzn-container-" + (if @is_multiple then "multi" else "single")
container_classes.push @form_field.className if @inherit_select_classes && @form_field.className
container_classes.push "chzn-rtl" if @is_rtl
@f_width = @form_field_jq.outerWidth()
container_props =
id: @container_id
class: container_classes.join ' '
style: 'width: ' + (@f_width) + 'px;' #use parens around @f_width so coffeescript doesn't think + ' px' is a function parameter
title: @form_field.title
container_div = ($ "<div />", container_props)
if @is_multiple
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:' + (if @is_rtl then '' else '-') + '9000px;"><ul class="chzn-results"></ul></div>'
else
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:' + (if @is_rtl then '' else '-') + '9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>'
@form_field_jq.hide().after container_div
@container = ($ '#' + @container_id)
@dropdown = @container.find('div.chzn-drop').first()
dd_top = @container.height()
dd_width = (@f_width - get_side_border_padding(@dropdown))
@dropdown.css({"width": dd_width + "px", "top": dd_top + "px"})
@search_field = @container.find('input').first()
@search_results = @container.find('ul.chzn-results').first()
this.search_field_scale()
@search_no_results = @container.find('li.no-results').first()
if @is_multiple
@search_choices = @container.find('ul.chzn-choices').first()
@search_container = @container.find('li.search-field').first()
else
@search_container = @container.find('div.chzn-search').first()
@selected_item = @container.find('.chzn-single').first()
sf_width = dd_width - get_side_border_padding(@search_container) - get_side_border_padding(@search_field)
@search_field.css( {"width" : sf_width + "px"} )
this.results_build()
this.set_tab_index()
@form_field_jq.trigger("liszt:ready", {chosen: this})
register_observers: ->
@container.mousedown (evt) => this.container_mousedown(evt); return
@container.mouseup (evt) => this.container_mouseup(evt); return
@container.mouseenter (evt) => this.mouse_enter(evt); return
@container.mouseleave (evt) => this.mouse_leave(evt); return
@search_results.mouseup (evt) => this.search_results_mouseup(evt); return
@search_results.mouseover (evt) => this.search_results_mouseover(evt); return
@search_results.mouseout (evt) => this.search_results_mouseout(evt); return
@form_field_jq.bind "liszt:updated", (evt) => this.results_update_field(evt); return
@form_field_jq.bind "liszt:activate", (evt) => this.activate_field(evt); return
@form_field_jq.bind "liszt:open", (evt) => this.container_mousedown(evt); return
@search_field.blur (evt) => this.input_blur(evt); return
@search_field.keyup (evt) => this.keyup_checker(evt); return
@search_field.keydown (evt) => this.keydown_checker(evt); return
@search_field.focus (evt) => this.input_focus(evt); return
if @is_multiple
@search_choices.click (evt) => this.choices_click(evt); return
else
@container.click (evt) => evt.preventDefault(); return # gobble click of anchor
search_field_disabled: ->
@is_disabled = @form_field_jq[0].disabled
if(@is_disabled)
@container.addClass 'chzn-disabled'
@search_field[0].disabled = true
@selected_item.unbind "focus", @activate_action if !@is_multiple
this.close_field()
else
@container.removeClass 'chzn-disabled'
@search_field[0].disabled = false
@selected_item.bind "focus", @activate_action if !@is_multiple
container_mousedown: (evt) ->
if !@is_disabled
target_closelink = if evt? then ($ evt.target).hasClass "search-choice-close" else false
if evt and evt.type is "mousedown" and not @results_showing
evt.preventDefault()
if not @pending_destroy_click and not target_closelink
if not @active_field
@search_field.val "" if @is_multiple
$(document).click @click_test_action
this.results_show()
else if not @is_multiple and evt and (($(evt.target)[0] == @selected_item[0]) || $(evt.target).parents("a.chzn-single").length)
evt.preventDefault()
this.results_toggle()
this.activate_field()
else
@pending_destroy_click = false
container_mouseup: (evt) ->
this.results_reset(evt) if evt.target.nodeName is "ABBR" and not @is_disabled
blur_test: (evt) ->
this.close_field() if not @active_field and @container.hasClass "chzn-container-active"
close_field: ->
$(document).unbind "click", @click_test_action
@active_field = false
this.results_hide()
@container.removeClass "chzn-container-active"
this.winnow_results_clear()
this.clear_backstroke()
this.show_search_field_default()
this.search_field_scale()
activate_field: ->
@container.addClass "chzn-container-active"
@active_field = true
@search_field.val(@search_field.val())
@search_field.focus()
test_active_click: (evt) ->
if $(evt.target).parents('#' + @container_id).length
@active_field = true
else
this.close_field()
results_build: ->
@parsing = true
@results_data = root.SelectParser.select_to_array @form_field
if @is_multiple and @choices > 0
@search_choices.find("li.search-choice").remove()
@choices = 0
else if not @is_multiple
@selected_item.addClass("chzn-default").find("span").text(@default_text)
if @disable_search or @form_field.options.length <= @disable_search_threshold
@container.addClass "chzn-container-single-nosearch"
else
@container.removeClass "chzn-container-single-nosearch"
content = ''
for data in @results_data
if data.group
content += this.result_add_group data
else if !data.empty
content += this.result_add_option data
if data.selected and @is_multiple
this.choice_build data
else if data.selected and not @is_multiple
@selected_item.removeClass("chzn-default").find("span").text data.text
this.single_deselect_control_build() if @allow_single_deselect
this.search_field_disabled()
this.show_search_field_default()
this.search_field_scale()
@search_results.html content
@parsing = false
result_add_group: (group) ->
if not group.disabled
group.dom_id = @container_id + "_g_" + group.array_index
'<li id="' + group.dom_id + '" class="group-result">' + $("<div />").text(group.label).html() + '</li>'
else
""
result_do_highlight: (el) ->
if el.length
this.result_clear_highlight()
@result_highlight = el
@result_highlight.addClass "highlighted"
maxHeight = parseInt @search_results.css("maxHeight"), 10
visible_top = @search_results.scrollTop()
visible_bottom = maxHeight + visible_top
high_top = @result_highlight.position().top + @search_results.scrollTop()
high_bottom = high_top + @result_highlight.outerHeight()
if high_bottom >= visible_bottom
@search_results.scrollTop if (high_bottom - maxHeight) > 0 then (high_bottom - maxHeight) else 0
else if high_top < visible_top
@search_results.scrollTop high_top
result_clear_highlight: ->
@result_highlight.removeClass "highlighted" if @result_highlight
@result_highlight = null
results_show: ->
if not @is_multiple
@selected_item.addClass "chzn-single-with-drop"
if @result_single_selected
this.result_do_highlight( @result_single_selected )
else if @max_selected_options <= @choices
@form_field_jq.trigger("liszt:maxselected", {chosen: this})
return false
dd_top = if @is_multiple then @container.height() else (@container.height() - 1)
@form_field_jq.trigger("liszt:showing_dropdown", {chosen: this})
@dropdown.css {"top": dd_top + "px", "left":0}
@results_showing = true
@search_field.focus()
@search_field.val @search_field.val()
this.winnow_results()
results_hide: ->
@selected_item.removeClass "chzn-single-with-drop" unless @is_multiple
this.result_clear_highlight()
@form_field_jq.trigger("liszt:hiding_dropdown", {chosen: this})
@dropdown.css {"left":(if @is_rtl then '' else '-') + "9000px"}
@results_showing = false
set_tab_index: (el) ->
if @form_field_jq.attr "tabindex"
ti = @form_field_jq.attr "tabindex"
@form_field_jq.attr "tabindex", -1
@search_field.attr "tabindex", ti
show_search_field_default: ->
if @is_multiple and @choices < 1 and not @active_field
@search_field.val(@default_text)
@search_field.addClass "default"
else
@search_field.val("")
@search_field.removeClass "default"
search_results_mouseup: (evt) ->
target = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
if target.length
@result_highlight = target
this.result_select(evt)
@search_field.focus()
search_results_mouseover: (evt) ->
target = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
this.result_do_highlight( target ) if target
search_results_mouseout: (evt) ->
this.result_clear_highlight() if $(evt.target).hasClass "active-result" or $(evt.target).parents('.active-result').first()
choices_click: (evt) ->
evt.preventDefault()
if( @active_field and not($(evt.target).hasClass "search-choice" or $(evt.target).parents('.search-choice').first) and not @results_showing )
this.results_show()
choice_build: (item) ->
if @is_multiple and @max_selected_options <= @choices
@form_field_jq.trigger("liszt:maxselected", {chosen: this})
return false # fire event
choice_id = @container_id + "_c_" + item.array_index
@choices += 1
if item.disabled
html = '<li class="search-choice search-choice-disabled" id="' + choice_id + '"><span>' + item.html + '</span></li>'
else
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>'
@search_container.before html
link = $('#' + choice_id).find("a").first()
link.click (evt) => this.choice_destroy_link_click(evt)
choice_destroy_link_click: (evt) ->
evt.preventDefault()
if not @is_disabled
@pending_destroy_click = true
this.choice_destroy $(evt.target)
else
evt.stopPropagation
choice_destroy: (link) ->
if this.result_deselect (link.attr "rel")
@choices -= 1
this.show_search_field_default()
this.results_hide() if @is_multiple and @choices > 0 and @search_field.val().length < 1
link.parents('li').first().remove()
this.search_field_scale()
results_reset: ->
@form_field.options[0].selected = true
@selected_item.find("span").text @default_text
@selected_item.addClass("chzn-default") if not @is_multiple
this.show_search_field_default()
this.results_reset_cleanup()
@form_field_jq.trigger "change"
this.results_hide() if @active_field
results_reset_cleanup: ->
@current_value = @form_field_jq.val()
@selected_item.find("abbr").remove()
result_select: (evt) ->
if @result_highlight
high = @result_highlight
high_id = high.attr "id"
this.result_clear_highlight()
if @is_multiple
this.result_deactivate high
else
@search_results.find(".result-selected").removeClass "result-selected"
@result_single_selected = high
@selected_item.removeClass("chzn-default")
high.addClass "result-selected"
position = high_id.substr(high_id.lastIndexOf("_") + 1 )
item = @results_data[position]
item.selected = true
@form_field.options[item.options_index].selected = true
if @is_multiple
this.choice_build item
else
@selected_item.find("span").first().text item.text
this.single_deselect_control_build() if @allow_single_deselect
this.results_hide() unless (evt.metaKey or evt.ctrlKey) and @is_multiple
@search_field.val ""
@form_field_jq.trigger "change", {'selected': @form_field.options[item.options_index].value} if @is_multiple || @form_field_jq.val() != @current_value
@current_value = @form_field_jq.val()
this.search_field_scale()
result_activate: (el) ->
el.addClass("active-result")
result_deactivate: (el) ->
el.removeClass("active-result")
result_deselect: (pos) ->
result_data = @results_data[pos]
if not @form_field.options[result_data.options_index].disabled
result_data.selected = false
@form_field.options[result_data.options_index].selected = false
result = $("#" + @container_id + "_o_" + pos)
result.removeClass("result-selected").addClass("active-result").show()
this.result_clear_highlight()
this.winnow_results()
@form_field_jq.trigger "change", {deselected: @form_field.options[result_data.options_index].value}
this.search_field_scale()
return true
else
return false
single_deselect_control_build: ->
@selected_item.find("span").first().after "<abbr class=\"search-choice-close\"></abbr>" if @allow_single_deselect and @selected_item.find("abbr").length < 1
winnow_results: ->
this.no_results_clear()
results = 0
searchText = if @search_field.val() is @default_text then "" else $('<div/>').text($.trim(@search_field.val())).html()
regexAnchor = if @search_contains then "" else "^"
regex = new RegExp(regexAnchor + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
for option in @results_data
if not option.disabled and not option.empty
if option.group
$('#' + option.dom_id).css('display', 'none')
else if not (@is_multiple and option.selected)
found = false
result_id = option.dom_id
result = $("#" + result_id)
if regex.test option.html
found = true
results += 1
else if @enable_split_word_search and (option.html.indexOf(" ") >= 0 or option.html.indexOf("[") == 0)
#TODO: replace this substitution of /\[\]/ with a list of characters to skip.
parts = option.html.replace(/\[|\]/g, "").split(" ")
if parts.length
for part in parts
if regex.test part
found = true
results += 1
if found
if searchText.length
startpos = option.html.search zregex
text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length)
text = text.substr(0, startpos) + '<em>' + text.substr(startpos)
else
text = option.html
result.html(text)
this.result_activate result
$("#" + @results_data[option.group_array_index].dom_id).css('display', 'list-item') if option.group_array_index?
else
this.result_clear_highlight() if @result_highlight and result_id is @result_highlight.attr 'id'
this.result_deactivate result
if results < 1 and searchText.length
this.no_results searchText
else
this.winnow_results_set_highlight()
winnow_results_clear: ->
@search_field.val ""
lis = @search_results.find("li")
for li in lis
li = $(li)
if li.hasClass "group-result"
li.css('display', 'auto')
else if not @is_multiple or not li.hasClass "result-selected"
this.result_activate li
winnow_results_set_highlight: ->
if not @result_highlight
selected_results = if not @is_multiple then @search_results.find(".result-selected.active-result") else []
do_high = if selected_results.length then selected_results.first() else @search_results.find(".active-result").first()
this.result_do_highlight do_high if do_high?
no_results: (terms) ->
no_results_html = $('<li class="no-results">' + @results_none_found + ' "<span></span>"</li>')
no_results_html.find("span").first().html(terms)
@search_results.append no_results_html
no_results_clear: ->
@search_results.find(".no-results").remove()
keydown_arrow: ->
if not @result_highlight
first_active = @search_results.find("li.active-result").first()
this.result_do_highlight $(first_active) if first_active
else if @results_showing
next_sib = @result_highlight.nextAll("li.active-result").first()
this.result_do_highlight next_sib if next_sib
this.results_show() if not @results_showing
keyup_arrow: ->
if not @results_showing and not @is_multiple
this.results_show()
else if @result_highlight
prev_sibs = @result_highlight.prevAll("li.active-result")
if prev_sibs.length
this.result_do_highlight prev_sibs.first()
else
this.results_hide() if @choices > 0
this.result_clear_highlight()
keydown_backstroke: ->
if @pending_backstroke
this.choice_destroy @pending_backstroke.find("a").first()
this.clear_backstroke()
else
next_available_destroy = @search_container.siblings("li.search-choice").last()
if next_available_destroy.length and not next_available_destroy.hasClass("search-choice-disabled")
@pending_backstroke = next_available_destroy
if @single_backstroke_delete
@keydown_backstroke()
else
@pending_backstroke.addClass "search-choice-focus"
clear_backstroke: ->
@pending_backstroke.removeClass "search-choice-focus" if @pending_backstroke
@pending_backstroke = null
keydown_checker: (evt) ->
stroke = evt.which ? evt.keyCode
this.search_field_scale()
this.clear_backstroke() if stroke != 8 and this.pending_backstroke
switch stroke
when 8
@backstroke_length = this.search_field.val().length
break
when 9
this.result_select(evt) if this.results_showing and not @is_multiple
@mouse_on_container = false
break
when 13
evt.preventDefault()
break
when 38
evt.preventDefault()
this.keyup_arrow()
break
when 40
this.keydown_arrow()
break
search_field_scale: ->
if @is_multiple
h = 0
w = 0
style_block = "position:absolute; left: -1000px; top: -1000px; display:none;"
styles = ['font-size','font-style', 'font-weight', 'font-family','line-height', 'text-transform', 'letter-spacing']
for style in styles
style_block += style + ":" + @search_field.css(style) + ";"
div = $('<div />', { 'style' : style_block })
div.text @search_field.val()
$('body').append div
w = div.width() + 25
div.remove()
if( w > @f_width-10 )
w = @f_width - 10
@search_field.css({'width': w + 'px'})
dd_top = @container.height()
@dropdown.css({"top": dd_top + "px"})
generate_random_id: ->
string = "sel" + this.generate_random_char() + this.generate_random_char() + this.generate_random_char()
while $("#" + string).length > 0
string += this.generate_random_char()
string
root.Chosen = Chosen
get_side_border_padding = (elmt) ->
side_border_padding = elmt.outerWidth() - elmt.width()
root.get_side_border_padding = get_side_border_padding
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