/*
 * Foundation Responsive Library
 * http://foundation.zurb.com
 * Copyright 2014, ZURB
 * Free to use under the MIT license.
 * http://www.opensource.org/licenses/mit-license.php
 */

(function ($, window, document, undefined) {
    'use strict';

    var header_helpers = function (class_array) {
        var i = class_array.length;
        var head = $('head');

        while (i--) {
            if (head.has('.' + class_array[i]).length === 0) {
                head.append('<meta class="' + class_array[i] + '" />');
            }
        }
    };

    header_helpers([
        'foundation-mq-small',
        'foundation-mq-small-only',
        'foundation-mq-medium',
        'foundation-mq-medium-only',
        'foundation-mq-large',
        'foundation-mq-large-only',
        'foundation-mq-xlarge',
        'foundation-mq-xlarge-only',
        'foundation-mq-xxlarge',
        'foundation-data-attribute-namespace']);

    // Enable FastClick if present

    $(function () {
        if (typeof FastClick !== 'undefined') {
            // Don't attach to body if undefined
            if (typeof document.body !== 'undefined') {
                FastClick.attach(document.body);
            }
        }
    });

    // private Fast Selector wrapper,
    // returns jQuery object. Only use where
    // getElementById is not available.
    var S = function (selector, context) {
        if (typeof selector === 'string') {
            if (context) {
                var cont;
                if (context.jquery) {
                    cont = context[0];
                    if (!cont) return context;
                } else {
                    cont = context;
                }
                return $(cont.querySelectorAll(selector));
            }

            return $(document.querySelectorAll(selector));
        }

        return $(selector, context);
    };

    // Namespace functions.

    var attr_name = function (init) {
        var arr = [];
        if (!init) arr.push('data');
        if (this.namespace.length > 0) arr.push(this.namespace);
        arr.push(this.name);

        return arr.join('-');
    };

    var add_namespace = function (str) {
        var parts = str.split('-'),
            i = parts.length,
            arr = [];

        while (i--) {
            if (i !== 0) {
                arr.push(parts[i]);
            } else {
                if (this.namespace.length > 0) {
                    arr.push(this.namespace, parts[i]);
                } else {
                    arr.push(parts[i]);
                }
            }
        }

        return arr.reverse().join('-');
    };

    // Event binding and data-options updating.

    var bindings = function (method, options) {
        var self = this,
            should_bind_events = !S(this).data(this.attr_name(true));

        if (S(this.scope).is('[' + this.attr_name() + ']')) {
            S(this.scope).data(this.attr_name(true) + '-init', $.extend({}, this.settings, (options || method), this.data_options(S(this.scope))));

            if (should_bind_events) {
                this.events(this.scope);
            }

        } else {
            S('[' + this.attr_name() + ']', this.scope).each(function () {
                var should_bind_events = !S(this).data(self.attr_name(true) + '-init');
                S(this).data(self.attr_name(true) + '-init', $.extend({}, self.settings, (options || method), self.data_options(S(this))));

                if (should_bind_events) {
                    self.events(this);
                }
            });
        }
        // # Patch to fix #5043 to move this *after* the if/else clause in order for Backbone and similar frameworks to have improved control over event binding and data-options updating.
        if (typeof method === 'string') {
            return this[method].call(this, options);
        }

    };

    var single_image_loaded = function (image, callback) {
        function loaded() {
            callback(image[0]);
        }

        function bindLoad() {
            this.one('load', loaded);

            if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) {
                var src = this.attr('src'),
                    param = src.match(/\?/) ? '&' : '?';

                param += 'random=' + (new Date()).getTime();
                this.attr('src', src + param);
            }
        }

        if (!image.attr('src')) {
            loaded();
            return;
        }

        if (image[0].complete || image[0].readyState === 4) {
            loaded();
        } else {
            bindLoad.call(image);
        }
    };

    /*
     https://github.com/paulirish/matchMedia.js
     */

    window.matchMedia = window.matchMedia || (function (doc) {

        'use strict';

        var bool,
            docElem = doc.documentElement,
            refNode = docElem.firstElementChild || docElem.firstChild,
        // fakeBody required for <FF4 when executed in <head>
            fakeBody = doc.createElement('body'),
            div = doc.createElement('div');

        div.id = 'mq-test-1';
        div.style.cssText = 'position:absolute;top:-100em';
        fakeBody.style.background = 'none';
        fakeBody.appendChild(div);

        return function (q) {

            div.innerHTML = '&shy;<style media="' + q + '"> #mq-test-1 { width: 42px; }</style>';

            docElem.insertBefore(fakeBody, refNode);
            bool = div.offsetWidth === 42;
            docElem.removeChild(fakeBody);

            return {
                matches: bool,
                media: q
            };

        };

    }(document));

    /*
     * jquery.requestAnimationFrame
     * https://github.com/gnarf37/jquery-requestAnimationFrame
     * Requires jQuery 1.8+
     *
     * Copyright (c) 2012 Corey Frang
     * Licensed under the MIT license.
     */

    (function ($) {

        // requestAnimationFrame polyfill adapted from Erik Möller
        // fixes from Paul Irish and Tino Zijdel
        // http://paulirish.com/2011/requestanimationframe-for-smart-animating/
        // http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

        var animating,
            lastTime = 0,
            vendors = ['webkit', 'moz'],
            requestAnimationFrame = window.requestAnimationFrame,
            cancelAnimationFrame = window.cancelAnimationFrame,
            jqueryFxAvailable = 'undefined' !== typeof jQuery.fx;

        for (; lastTime < vendors.length && !requestAnimationFrame; lastTime++) {
            requestAnimationFrame = window[vendors[lastTime] + 'RequestAnimationFrame'];
            cancelAnimationFrame = cancelAnimationFrame ||
            window[vendors[lastTime] + 'CancelAnimationFrame'] ||
            window[vendors[lastTime] + 'CancelRequestAnimationFrame'];
        }

        function raf() {
            if (animating) {
                requestAnimationFrame(raf);

                if (jqueryFxAvailable) {
                    jQuery.fx.tick();
                }
            }
        }

        if (requestAnimationFrame) {
            // use rAF
            window.requestAnimationFrame = requestAnimationFrame;
            window.cancelAnimationFrame = cancelAnimationFrame;

            if (jqueryFxAvailable) {
                jQuery.fx.timer = function (timer) {
                    if (timer() && jQuery.timers.push(timer) && !animating) {
                        animating = true;
                        raf();
                    }
                };

                jQuery.fx.stop = function () {
                    animating = false;
                };
            }
        } else {
            // polyfill
            window.requestAnimationFrame = function (callback) {
                var currTime = new Date().getTime(),
                    timeToCall = Math.max(0, 16 - (currTime - lastTime)),
                    id = window.setTimeout(function () {
                        callback(currTime + timeToCall);
                    }, timeToCall);
                lastTime = currTime + timeToCall;
                return id;
            };

            window.cancelAnimationFrame = function (id) {
                clearTimeout(id);
            };

        }

    }(jQuery));


    function removeQuotes(string) {
        if (typeof string === 'string' || string instanceof String) {
            string = string.replace(/^['\\/"]+|(;\s?})+|['\\/"]+$/g, '');
        }

        return string;
    }

    window.Foundation = {
        name: 'Foundation',

        version: '5.5.0',

        media_queries: {
            'small': S('.foundation-mq-small').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'small-only': S('.foundation-mq-small-only').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'medium': S('.foundation-mq-medium').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'medium-only': S('.foundation-mq-medium-only').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'large': S('.foundation-mq-large').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'large-only': S('.foundation-mq-large-only').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'xlarge': S('.foundation-mq-xlarge').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'xlarge-only': S('.foundation-mq-xlarge-only').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, ''),
            'xxlarge': S('.foundation-mq-xxlarge').css('font-family').replace(/^[\/\\'"]+|(;\s?})+|[\/\\'"]+$/g, '')
        },

        stylesheet: $('<style></style>').appendTo('head')[0].sheet,

        global: {
            namespace: undefined
        },

        init: function (scope, libraries, method, options, response) {
            var args = [scope, method, options, response],
                responses = [];

            // check RTL
            this.rtl = /rtl/i.test(S('html').attr('dir'));

            // set foundation global scope
            this.scope = scope || this.scope;

            this.set_namespace();

            if (libraries && typeof libraries === 'string' && !/reflow/i.test(libraries)) {
                if (this.libs.hasOwnProperty(libraries)) {
                    responses.push(this.init_lib(libraries, args));
                }
            } else {
                for (var lib in this.libs) {
                    responses.push(this.init_lib(lib, libraries));
                }
            }

            S(window).load(function () {
                S(window)
                    .trigger('resize.fndtn.clearing')
                    .trigger('resize.fndtn.dropdown')
                    .trigger('resize.fndtn.equalizer')
                    .trigger('resize.fndtn.interchange')
                    .trigger('resize.fndtn.joyride')
                    .trigger('resize.fndtn.magellan')
                    .trigger('resize.fndtn.topbar')
                    .trigger('resize.fndtn.slider');
            });

            return scope;
        },

        init_lib: function (lib, args) {
            if (this.libs.hasOwnProperty(lib)) {
                this.patch(this.libs[lib]);

                if (args && args.hasOwnProperty(lib)) {
                    if (typeof this.libs[lib].settings !== 'undefined') {
                        $.extend(true, this.libs[lib].settings, args[lib]);
                    }
                    else if (typeof this.libs[lib].defaults !== 'undefined') {
                        $.extend(true, this.libs[lib].defaults, args[lib]);
                    }
                    return this.libs[lib].init.apply(this.libs[lib], [this.scope, args[lib]]);
                }

                args = args instanceof Array ? args : new Array(args);
                return this.libs[lib].init.apply(this.libs[lib], args);
            }

            return function () {
            };
        },

        patch: function (lib) {
            lib.scope = this.scope;
            lib.namespace = this.global.namespace;
            lib.rtl = this.rtl;
            lib['data_options'] = this.utils.data_options;
            lib['attr_name'] = attr_name;
            lib['add_namespace'] = add_namespace;
            lib['bindings'] = bindings;
            lib['S'] = this.utils.S;
        },

        inherit: function (scope, methods) {
            var methods_arr = methods.split(' '),
                i = methods_arr.length;

            while (i--) {
                if (this.utils.hasOwnProperty(methods_arr[i])) {
                    scope[methods_arr[i]] = this.utils[methods_arr[i]];
                }
            }
        },

        set_namespace: function () {

            // Description:
            //    Don't bother reading the namespace out of the meta tag
            //    if the namespace has been set globally in javascript
            //
            // Example:
            //    Foundation.global.namespace = 'my-namespace';
            // or make it an empty string:
            //    Foundation.global.namespace = '';
            //
            //

            // If the namespace has not been set (is undefined), try to read it out of the meta element.
            // Otherwise use the globally defined namespace, even if it's empty ('')
            var namespace = ( this.global.namespace === undefined ) ? $('.foundation-data-attribute-namespace').css('font-family') : this.global.namespace;

            // Finally, if the namsepace is either undefined or false, set it to an empty string.
            // Otherwise use the namespace value.
            this.global.namespace = ( namespace === undefined || /false/i.test(namespace) ) ? '' : namespace;
        },

        libs: {},

        // methods that can be inherited in libraries
        utils: {

            // Description:
            //    Fast Selector wrapper returns jQuery object. Only use where getElementById
            //    is not available.
            //
            // Arguments:
            //    Selector (String): CSS selector describing the element(s) to be
            //    returned as a jQuery object.
            //
            //    Scope (String): CSS selector describing the area to be searched. Default
            //    is document.
            //
            // Returns:
            //    Element (jQuery Object): jQuery object containing elements matching the
            //    selector within the scope.
            S: S,

            // Description:
            //    Executes a function a max of once every n milliseconds
            //
            // Arguments:
            //    Func (Function): Function to be throttled.
            //
            //    Delay (Integer): Function execution threshold in milliseconds.
            //
            // Returns:
            //    Lazy_function (Function): Function with throttling applied.
            throttle: function (func, delay) {
                var timer = null;

                return function () {
                    var context = this, args = arguments;

                    if (timer == null) {
                        timer = setTimeout(function () {
                            func.apply(context, args);
                            timer = null;
                        }, delay);
                    }
                };
            },

            // Description:
            //    Executes a function when it stops being invoked for n seconds
            //    Modified version of _.debounce() http://underscorejs.org
            //
            // Arguments:
            //    Func (Function): Function to be debounced.
            //
            //    Delay (Integer): Function execution threshold in milliseconds.
            //
            //    Immediate (Bool): Whether the function should be called at the beginning
            //    of the delay instead of the end. Default is false.
            //
            // Returns:
            //    Lazy_function (Function): Function with debouncing applied.
            debounce: function (func, delay, immediate) {
                var timeout, result;
                return function () {
                    var context = this, args = arguments;
                    var later = function () {
                        timeout = null;
                        if (!immediate) result = func.apply(context, args);
                    };
                    var callNow = immediate && !timeout;
                    clearTimeout(timeout);
                    timeout = setTimeout(later, delay);
                    if (callNow) result = func.apply(context, args);
                    return result;
                };
            },

            // Description:
            //    Parses data-options attribute
            //
            // Arguments:
            //    El (jQuery Object): Element to be parsed.
            //
            // Returns:
            //    Options (Javascript Object): Contents of the element's data-options
            //    attribute.
            data_options: function (el, data_attr_name) {
                data_attr_name = data_attr_name || 'options';
                var opts = {}, ii, p, opts_arr,
                    data_options = function (el) {
                        var namespace = Foundation.global.namespace;

                        if (namespace.length > 0) {
                            return el.data(namespace + '-' + data_attr_name);
                        }

                        return el.data(data_attr_name);
                    };

                var cached_options = data_options(el);

                if (typeof cached_options === 'object') {
                    return cached_options;
                }

                opts_arr = (cached_options || ':').split(';');
                ii = opts_arr.length;

                function isNumber(o) {
                    return !isNaN(o - 0) && o !== null && o !== '' && o !== false && o !== true;
                }

                function trim(str) {
                    if (typeof str === 'string') return $.trim(str);
                    return str;
                }

                while (ii--) {
                    p = opts_arr[ii].split(':');
                    p = [p[0], p.slice(1).join(':')];

                    if (/true/i.test(p[1])) p[1] = true;
                    if (/false/i.test(p[1])) p[1] = false;
                    if (isNumber(p[1])) {
                        if (p[1].indexOf('.') === -1) {
                            p[1] = parseInt(p[1], 10);
                        } else {
                            p[1] = parseFloat(p[1]);
                        }
                    }

                    if (p.length === 2 && p[0].length > 0) {
                        opts[trim(p[0])] = trim(p[1]);
                    }
                }

                return opts;
            },

            // Description:
            //    Adds JS-recognizable media queries
            //
            // Arguments:
            //    Media (String): Key string for the media query to be stored as in
            //    Foundation.media_queries
            //
            //    Class (String): Class name for the generated <meta> tag
            register_media: function (media, media_class) {
                if (Foundation.media_queries[media] === undefined) {
                    $('head').append('<meta class="' + media_class + '"/>');
                    Foundation.media_queries[media] = removeQuotes($('.' + media_class).css('font-family'));
                }
            },

            // Description:
            //    Add custom CSS within a JS-defined media query
            //
            // Arguments:
            //    Rule (String): CSS rule to be appended to the document.
            //
            //    Media (String): Optional media query string for the CSS rule to be
            //    nested under.
            add_custom_rule: function (rule, media) {
                if (media === undefined && Foundation.stylesheet) {
                    Foundation.stylesheet.insertRule(rule, Foundation.stylesheet.cssRules.length);
                } else {
                    var query = Foundation.media_queries[media];

                    if (query !== undefined) {
                        Foundation.stylesheet.insertRule('@media ' +
                        Foundation.media_queries[media] + '{ ' + rule + ' }');
                    }
                }
            },

            // Description:
            //    Performs a callback function when an image is fully loaded
            //
            // Arguments:
            //    Image (jQuery Object): Image(s) to check if loaded.
            //
            //    Callback (Function): Function to execute when image is fully loaded.
            image_loaded: function (images, callback) {
                var self = this,
                    unloaded = images.length;

                if (unloaded === 0) {
                    callback(images);
                }

                images.each(function () {
                    single_image_loaded(self.S(this), function () {
                        unloaded -= 1;
                        if (unloaded === 0) {
                            callback(images);
                        }
                    });
                });
            },

            // Description:
            //    Returns a random, alphanumeric string
            //
            // Arguments:
            //    Length (Integer): Length of string to be generated. Defaults to random
            //    integer.
            //
            // Returns:
            //    Rand (String): Pseudo-random, alphanumeric string.
            random_str: function () {
                if (!this.fidx) this.fidx = 0;
                this.prefix = this.prefix || [(this.name || 'F'), (+new Date).toString(36)].join('-');

                return this.prefix + (this.fidx++).toString(36);
            },

            // Description:
            //    Helper for window.matchMedia
            //
            // Arguments:
            //    mq (String): Media query
            //
            // Returns:
            //    (Boolean): Whether the media query passes or not
            match: function (mq) {
                return window.matchMedia(mq).matches;
            },

            // Description:
            //    Helpers for checking Foundation default media queries with JS
            //
            // Returns:
            //    (Boolean): Whether the media query passes or not

            is_small_up: function () {
                return this.match(Foundation.media_queries.small);
            },

            is_medium_up: function () {
                return this.match(Foundation.media_queries.medium);
            },

            is_large_up: function () {
                return this.match(Foundation.media_queries.large);
            },

            is_xlarge_up: function () {
                return this.match(Foundation.media_queries.xlarge);
            },

            is_xxlarge_up: function () {
                return this.match(Foundation.media_queries.xxlarge);
            },

            is_small_only: function () {
                return !this.is_medium_up() && !this.is_large_up() && !this.is_xlarge_up() && !this.is_xxlarge_up();
            },

            is_medium_only: function () {
                return this.is_medium_up() && !this.is_large_up() && !this.is_xlarge_up() && !this.is_xxlarge_up();
            },

            is_large_only: function () {
                return this.is_medium_up() && this.is_large_up() && !this.is_xlarge_up() && !this.is_xxlarge_up();
            },

            is_xlarge_only: function () {
                return this.is_medium_up() && this.is_large_up() && this.is_xlarge_up() && !this.is_xxlarge_up();
            },

            is_xxlarge_only: function () {
                return this.is_medium_up() && this.is_large_up() && this.is_xlarge_up() && this.is_xxlarge_up();
            }
        }
    };

    $.fn.foundation = function () {
        var args = Array.prototype.slice.call(arguments, 0);

        return this.each(function () {
            Foundation.init.apply(Foundation, [this].concat(args));
            return this;
        });
    };

}(jQuery, window, window.document));
