silverstripe-framework/admin/thirdparty/chosen/coffee/lib/abstract-chosen.coffee
2012-11-27 16:28:17 +13:00

127 lines
4.0 KiB
CoffeeScript

###
Chosen source: generate output using 'cake build'
Copyright (c) 2011 by Harvest
###
root = this
class AbstractChosen
constructor: (@form_field, @options={}) ->
this.set_default_values()
@is_multiple = @form_field.multiple
this.set_default_text()
this.setup()
this.set_up_html()
this.register_observers()
this.finish_setup()
set_default_values: ->
@click_test_action = (evt) => this.test_active_click(evt)
@activate_action = (evt) => this.activate_field(evt)
@active_field = false
@mouse_on_container = false
@results_showing = false
@result_highlighted = null
@result_single_selected = null
@allow_single_deselect = if @options.allow_single_deselect? and @form_field.options[0]? and @form_field.options[0].text is "" then @options.allow_single_deselect else false
@disable_search_threshold = @options.disable_search_threshold || 0
@disable_search = @options.disable_search || false
@search_contains = @options.search_contains || false
@choices = 0
@single_backstroke_delete = @options.single_backstroke_delete || false
@max_selected_options = @options.max_selected_options || Infinity
set_default_text: ->
if @form_field.getAttribute("data-placeholder")
@default_text = @form_field.getAttribute("data-placeholder")
else if @is_multiple
@default_text = @options.placeholder_text_multiple || @options.placeholder_text || "Select Some Options"
else
@default_text = @options.placeholder_text_single || @options.placeholder_text || "Select an Option"
@results_none_found = @form_field.getAttribute("data-no_results_text") || @options.no_results_text || "No results match"
mouse_enter: -> @mouse_on_container = true
mouse_leave: -> @mouse_on_container = false
input_focus: (evt) ->
if @is_multiple
setTimeout (=> this.container_mousedown()), 50 unless @active_field
else
@activate_field() unless @active_field
input_blur: (evt) ->
if not @mouse_on_container
@active_field = false
setTimeout (=> this.blur_test()), 100
result_add_option: (option) ->
if not option.disabled
option.dom_id = @container_id + "_o_" + option.array_index
classes = if option.selected and @is_multiple then [] else ["active-result"]
classes.push "result-selected" if option.selected
classes.push "group-option" if option.group_array_index?
classes.push option.classes if option.classes != ""
style = if option.style.cssText != "" then " style=\"#{option.style}\"" else ""
'<li id="' + option.dom_id + '" class="' + classes.join(' ') + '"'+style+'>' + option.html + '</li>'
else
""
results_update_field: ->
this.results_reset_cleanup() if not @is_multiple
this.result_clear_highlight()
@result_single_selected = null
this.results_build()
results_toggle: ->
if @results_showing
this.results_hide()
else
this.results_show()
results_search: (evt) ->
if @results_showing
this.winnow_results()
else
this.results_show()
keyup_checker: (evt) ->
stroke = evt.which ? evt.keyCode
this.search_field_scale()
switch stroke
when 8
if @is_multiple and @backstroke_length < 1 and @choices > 0
this.keydown_backstroke()
else if not @pending_backstroke
this.result_clear_highlight()
this.results_search()
when 13
evt.preventDefault()
this.result_select(evt) if this.results_showing
when 27
this.results_hide() if @results_showing
return true
when 9, 38, 40, 16, 91, 17
# don't do anything on these keys
else this.results_search()
generate_field_id: ->
new_id = this.generate_random_id()
@form_field.id = new_id
new_id
generate_random_char: ->
chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
rand = Math.floor(Math.random() * chars.length)
newchar = chars.substring rand, rand+1
root.AbstractChosen = AbstractChosen