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###
Copyright 2013 Marco Braak
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
###
$ = jQuery
class SimpleWidget
defaults: {}
constructor: (el, options) ->
@$el = $(el)
@options = $.extend({}, @defaults, options)
destroy: ->
@_deinit()
_init: ->
null
_deinit: ->
null
@register = (widget_class, widget_name) ->
getDataKey = ->
return "simple_widget_#{widget_name}"
getWidgetData = (el, data_key) ->
widget = $.data(el, data_key)
if widget and (widget instanceof SimpleWidget)
return widget
else
return null
createWidget = ($el, options) ->
data_key = getDataKey()
for el in $el
existing_widget = getWidgetData(el, data_key)
if not existing_widget
widget = new widget_class(el, options)
if not $.data(el, data_key)
$.data(el, data_key, widget)
# Call init after setting data, so we can call methods
widget._init()
return $el
destroyWidget = ($el) ->
data_key = getDataKey()
for el in $el
widget = getWidgetData(el, data_key)
if widget
widget.destroy()
$.removeData(el, data_key)
callFunction = ($el, function_name, args) ->
result = null
for el in $el
widget = $.data(el, getDataKey())
if widget and (widget instanceof SimpleWidget)
widget_function = widget[function_name]
if widget_function and (typeof widget_function == 'function')
result = widget_function.apply(widget, args)
return result
$.fn[widget_name] = (argument1, args...) ->
$el = this
if argument1 is undefined or typeof argument1 == 'object'
options = argument1
return createWidget($el, options)
else if typeof argument1 == 'string' and argument1[0] != '_'
function_name = argument1
if function_name == 'destroy'
return destroyWidget($el)
else if function_name == 'get_widget_class'
return widget_class
else
return callFunction($el, function_name, args)
module.exports = SimpleWidget
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