/* =========================================================
 * bootstrap-modal.js v2.1.1
 * http://twitter.github.com/bootstrap/javascript.html#modals
 * =========================================================
 * Copyright 2012 Twitter, Inc.
 *
 * 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.
 * ========================================================= */


!function ($) {

    "use strict"; // jshint ;_;


    /* MODAL CLASS DEFINITION
     * ====================== */

    var Modal = function (element, options) {
        this.options = options
        this.$element = $(element)
            .delegate('[data-dismiss="modal"]', 'click.dismiss.modal', $.proxy(this.hide, this))
        this.options.remote && this.$element.find('.modal-body').load(this.options.remote)
    }

    Modal.prototype = {

        constructor: Modal

        , toggle: function () {
            return this[!this.isShown ? 'show' : 'hide']()
        }

        , show: function () {
            var that = this
                , e = $.Event('show')

            this.$element.trigger(e)

            if (this.isShown || e.isDefaultPrevented()) return

            $('body').addClass('modal-open')

            this.isShown = true

            this.escape()

            this.backdrop(function () {
                var transition = $.support.transition && that.$element.hasClass('fade')

                if (!that.$element.parent().length) {
                    that.$element.appendTo(document.body) //don't move modals dom position
                }

                that.$element
                    .show()

                if (transition) {
                    that.$element[0].offsetWidth // force reflow
                }

                that.$element
                    .addClass('in')
                    .attr('aria-hidden', false)
                    .focus()

                that.enforceFocus()

                transition ?
                    that.$element.one($.support.transition.end, function () { that.$element.trigger('shown') }) :
                    that.$element.trigger('shown')

            })
        }

        , hide: function (e) {
            e && e.preventDefault()

            var that = this

            e = $.Event('hide')

            this.$element.trigger(e)

            if (!this.isShown || e.isDefaultPrevented()) return

            this.isShown = false

            $('body').removeClass('modal-open')

            this.escape()

            $(document).off('focusin.modal')

            this.$element
                .removeClass('in')
                .attr('aria-hidden', true)

            $.support.transition && this.$element.hasClass('fade') ?
                this.hideWithTransition() :
                this.hideModal()
        }

        , enforceFocus: function () {
            var that = this
            $(document).on('focusin.modal', function (e) {
                if (that.$element[0] !== e.target && !that.$element.has(e.target).length) {
                    that.$element.focus()
                }
            })
        }

        , escape: function () {

        }

        , hideWithTransition: function () {
            var that = this
                , timeout = setTimeout(function () {
                    that.$element.off($.support.transition.end)
                    that.hideModal()
                }, 500)

            this.$element.one($.support.transition.end, function () {
                clearTimeout(timeout)
                that.hideModal()
            })
        }

        , hideModal: function (that) {
            this.$element
                .hide()
                .trigger('hidden')

            this.backdrop()
        }

        , removeBackdrop: function () {
            this.$backdrop.remove()
            this.$backdrop = null
        }

        , backdrop: function (callback) {
            var that = this
                , animate = this.$element.hasClass('fade') ? 'fade' : ''

            if (this.isShown && this.options.backdrop) {
                var doAnimate = $.support.transition && animate

                this.$backdrop = $('<div class="modal-backdrop ' + animate + '" />')
                    .appendTo(document.body)

                if (this.options.backdrop != 'static') {
                    this.$backdrop.click($.proxy(this.hide, this))
                }

                if (doAnimate) this.$backdrop[0].offsetWidth // force reflow

                this.$backdrop.addClass('in')

                doAnimate ?
                    this.$backdrop.one($.support.transition.end, callback) :
                    callback()

            } else if (!this.isShown && this.$backdrop) {
                this.$backdrop.removeClass('in')

                $.support.transition && this.$element.hasClass('fade')?
                    this.$backdrop.one($.support.transition.end, $.proxy(this.removeBackdrop, this)) :
                    this.removeBackdrop()

            } else if (callback) {
                callback()
            }
        }
    }


    /* MODAL PLUGIN DEFINITION
     * ======================= */

    $.fn.modal = function (option) {
        return this.each(function () {
            var $this = $(this)
                , data = $this.data('modal')
                , options = $.extend({}, $.fn.modal.defaults, $this.data(), typeof option == 'object' && option)
            if (!data) $this.data('modal', (data = new Modal(this, options)))
            if (typeof option == 'string') data[option]()
            else if (options.show) data.show()
        })
    }

    $.fn.modal.defaults = {
        backdrop: true
        , keyboard: true
        , show: true
    }

    $.fn.modal.Constructor = Modal


    /* MODAL DATA-API
     * ============== */

    $(function () {
        $('body').on('click.modal.data-api', '[data-toggle="modal"]', function ( e ) {
            var $this = $(this)
                , href = $this.attr('href')
                , $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7
                , option = $target.data('modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())

            e.preventDefault()

            $target
                .modal(option)
                .one('hide', function () {
                    $this.focus()
                })
        })
    })

}(window.jQuery);