/* ========================================================================
 * Bootstrap: button.js v3.3.6
 * http://getbootstrap.com/javascript/#buttons
 * ========================================================================
 * Copyright 2011-2015 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * ======================================================================== */


+function ($) {
    'use strict';

    // BUTTON PUBLIC CLASS DEFINITION
    // ==============================

    var Button = function (element, options) {
        this.$element = $(element)
        this.options = $.extend({}, Button.DEFAULTS, options)
        this.isLoading = false
    }

    Button.VERSION = '3.3.6'

    Button.DEFAULTS = {
        loadingText: 'loading...'
    }

    Button.prototype.setState = function (state) {
        var d = 'disabled'
        var $el = this.$element
        var val = $el.is('input') ? 'val' : 'html'
        var data = $el.data()

        state += 'Text'

        if (data.resetText == null) $el.data('resetText', $el[val]())

        // push to event loop to allow forms to submit
        setTimeout($.proxy(function () {
            $el[val](data[state] == null ? this.options[state] : data[state])

            if (state == 'loadingText') {
                this.isLoading = true
                $el.addClass(d).attr(d, d)
            } else if (this.isLoading) {
                this.isLoading = false
                $el.removeClass(d).removeAttr(d)
            }
        }, this), 0)
    }

    Button.prototype.toggle = function () {
        var changed = true
        var $parent = this.$element.closest('[data-toggle="buttons"]')

        if ($parent.length) {
            var $input = this.$element.find('input')
            if ($input.prop('type') == 'radio') {
                if ($input.prop('checked')) changed = false
                $parent.find('.active').removeClass('active')
                this.$element.addClass('active')
            } else if ($input.prop('type') == 'checkbox') {
                if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
                this.$element.toggleClass('active')
            }
            $input.prop('checked', this.$element.hasClass('active'))
            if (changed) $input.trigger('change')
        } else {
            this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
            this.$element.toggleClass('active')
        }
    }


    // BUTTON PLUGIN DEFINITION
    // ========================

    function Plugin(option) {
        return this.each(function () {
            var $this = $(this)
            var data = $this.data('bs.button')
            var options = typeof option == 'object' && option

            if (!data) $this.data('bs.button', (data = new Button(this, options)))

            if (option == 'toggle') data.toggle()
            else if (option) data.setState(option)
        })
    }

    var old = $.fn.button

    $.fn.button = Plugin
    $.fn.button.Constructor = Button


    // BUTTON NO CONFLICT
    // ==================

    $.fn.button.noConflict = function () {
        $.fn.button = old
        return this
    }


    // BUTTON DATA-API
    // ===============

    $(document)
        .on('click.bs.button.data-api', '[data-toggle^="button"]', function (e) {
            var $btn = $(e.target)
            if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
            Plugin.call($btn, 'toggle')
            if (!($(e.target).is('input[type="radio"]') || $(e.target).is('input[type="checkbox"]'))) e.preventDefault()
        })
        .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
            $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
        })

}(jQuery);