/* ===========================================================

* bootstrap-modal.js v2.1
* ===========================================================
* Copyright 2012 Jordan Schroter
*
* 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.init(element, options);
};

Modal.prototype = {

        constructor: Modal,

        init: 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);

                var manager = typeof this.options.manager === 'function' ?
                        this.options.manager.call(this) : this.options.manager;

                manager = manager.appendModal ?
                        manager : $(manager).modalmanager().data('modalmanager');

                manager.appendModal(this);
        },

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

        show: function () {
                var e = $.Event('show');

                if (this.isShown) return;

                this.$element.triggerHandler(e);

                if (e.isDefaultPrevented()) return;

                this.escape();

                this.tab();

                this.options.loading && this.loading();
        },

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

                e = $.Event('hide');

                this.$element.triggerHandler(e);

                if (!this.isShown || e.isDefaultPrevented()) return (this.isShown = false);

                this.isShown = false;

                this.escape();

                this.tab();

                this.isLoading && this.loading();

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

                this.$element
                        .removeClass('in')
                        .removeClass('animated')
                        .removeClass(this.options.attentionAnimation)
                        .removeClass('modal-overflow')
                        .attr('aria-hidden', true);

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

        layout: function () {
                var prop = this.options.height ? 'height' : 'max-height',
                        value = this.options.height || this.options.maxHeight;

                if (this.options.width){
                        this.$element.css('width', this.options.width);

                        var that = this;
                        this.$element.css('margin-left', function () {
                                if (/%/ig.test(that.options.width)){
                                        return -(parseInt(that.options.width) / 2) + '%';
                                } else {
                                        return -($(this).width() / 2) + 'px';
                                }
                        });
                } else {
                        this.$element.css('width', '');
                        this.$element.css('margin-left', '');
                }

                this.$element.find('.modal-body')
                        .css('overflow', '')
                        .css(prop, '');

                var modalOverflow = $(window).height() - 10 < this.$element.height();

                if (value){
                        this.$element.find('.modal-body')
                                .css('overflow', 'auto')
                                .css(prop, value);
                }

                if (modalOverflow || this.options.modalOverflow) {
                        this.$element
                                .css('margin-top', 0)
                                .addClass('modal-overflow');
                } else {
                        this.$element
                                .css('margin-top', 0 - this.$element.height() / 2)
                                .removeClass('modal-overflow');
                }
        },

        tab: function () {
                var that = this;

                if (this.isShown && this.options.consumeTab) {
                        this.$element.on('keydown.tabindex.modal', '[data-tabindex]', function (e) {
                        if (e.keyCode && e.keyCode == 9){
                                        var $next = $(this),
                                                $rollover = $(this);

                                        that.$element.find('[data-tabindex]:enabled:not([readonly])').each(function (e) {
                                                if (!e.shiftKey){
                                                        $next = $next.data('tabindex') < $(this).data('tabindex') ?
                                                                $next = $(this) :
                                                                $rollover = $(this);
                                                } else {
                                                        $next = $next.data('tabindex') > $(this).data('tabindex') ?
                                                                $next = $(this) :
                                                                $rollover = $(this);
                                                }
                                        });

                                        $next[0] !== $(this)[0] ?
                                                $next.focus() : $rollover.focus();

                                        e.preventDefault();
                                }
                        });
                } else if (!this.isShown) {
                        this.$element.off('keydown.tabindex.modal');
                }
        },

        escape: function () {
                var that = this;
                if (this.isShown && this.options.keyboard) {
                        if (!this.$element.attr('tabindex')) this.$element.attr('tabindex', -1);

                        this.$element.on('keyup.dismiss.modal', function (e) {
                                e.which == 27 && that.hide();
                        });
                } else if (!this.isShown) {
                        this.$element.off('keyup.dismiss.modal')
                }
        },

        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 () {
                this.$element
                        .hide()
                        .triggerHandler('hidden');

                var prop = this.options.height ? 'height' : 'max-height';
                var value = this.options.height || this.options.maxHeight;

                if (value){
                        this.$element.find('.modal-body')
                                .css('overflow', '')
                                .css(prop, '');
                }

        },

        removeLoading: function () {
                this.$loading.remove();
                this.$loading = null;
                this.isLoading = false;
        },

        loading: function (callback) {
                callback = callback || function () {};

                var animate = this.$element.hasClass('fade') ? 'fade' : '';

                if (!this.isLoading) {
                        var doAnimate = $.support.transition && animate;

                        this.$loading = $('<div class="loading-mask ' + animate + '">')
                                .append(this.options.spinner)
                                .appendTo(this.$element);

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

                        this.$loading.addClass('in');

                        this.isLoading = true;

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

                } else if (this.isLoading && this.$loading) {
                        this.$loading.removeClass('in');

                        var that = this;
                        $.support.transition && this.$element.hasClass('fade')?
                                this.$loading.one($.support.transition.end, function () { that.removeLoading() }) :
                                that.removeLoading();

                } else if (callback) {
                        callback(this.isLoading);
                }
        },

        focus: function () {
                var $focusElem = this.$element.find(this.options.focusOn);

                $focusElem = $focusElem.length ? $focusElem : this.$element;

                $focusElem.focus();
        },

        attention: function (){
                // NOTE: transitionEnd with keyframes causes odd behaviour

                if (this.options.attentionAnimation){
                        this.$element
                                .removeClass('animated')
                                .removeClass(this.options.attentionAnimation);

                        var that = this;

                        setTimeout(function () {
                                that.$element
                                        .addClass('animated')
                                        .addClass(that.options.attentionAnimation);
                        }, 0);
                }

                this.focus();
        },

        destroy: function () {
                var e = $.Event('destroy');
                this.$element.triggerHandler(e);
                if (e.isDefaultPrevented()) return;

                this.teardown();
        },

        teardown: function () {
                if (!this.$parent.length){
                        this.$element.remove();
                        this.$element = null;
                        return;
                }

                if (this.$parent !== this.$element.parent()){
                        this.$element.appendTo(this.$parent);
                }

                this.$element.off('.modal');
                this.$element.removeData('modal');
                this.$element
                        .removeClass('in')
                        .attr('aria-hidden', true);
        }
};

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

$.fn.modal = function (option, args) {
        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].apply(data, [].concat(args));
                else if (options.show) data.show()
        })
};

$.fn.modal.defaults = {
        keyboard: true,
        backdrop: true,
        loading: false,
        show: true,
        width: null,
        height: null,
        maxHeight: null,
        modalOverflow: false,
        consumeTab: true,
        focusOn: null,
        replace: false,
        resize: false,
        attentionAnimation: 'shake',
        manager: 'body',
        spinner: '<div class="loading-spinner" style="width: 200px; margin-left: -100px;"><div class="progress progress-striped active"><div class="bar" style="width: 100%;"></div></div></div>'
};

$.fn.modal.Constructor = Modal;

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

$(function () {
        $(document).off('click.modal').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);