path: root/js/core/core.js

/*! UIkit 2.26.4 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
(function(core) {

    if (typeof define == "function" && define.amd) { // AMD

        define("uikit", function(){

            var uikit = window.UIkit || core(window, window.jQuery, window.document);

            uikit.load = function(res, req, onload, config) {

                var resources = res.split(','), load = [], i, base = (config.config && config.config.uikit && config.config.uikit.base ? config.config.uikit.base : "").replace(/\/+$/g, "");

                if (!base) {
                    throw new Error( "Please define base path to UIkit in the requirejs config." );
                }

                for (i = 0; i < resources.length; i += 1) {
                    var resource = resources[i].replace(/\./g, '/');
                    load.push(base+'/components/'+resource);
                }

                req(load, function() {
                    onload(uikit);
                });
            };

            return uikit;
        });
    }

    if (!window.jQuery) {
        throw new Error( "UIkit requires jQuery" );
    }

    if (window && window.jQuery) {
        core(window, window.jQuery, window.document);
    }


})(function(global, $, doc) {

    "use strict";

    var UI = {}, _UI = global.UIkit ? Object.create(global.UIkit) : undefined;

    UI.version = '2.26.4';

    UI.noConflict = function() {
        // restore UIkit version
        if (_UI) {
            global.UIkit = _UI;
            $.UIkit      = _UI;
            $.fn.uk      = _UI.fn;
        }

        return UI;
    };

    UI.prefix = function(str) {
        return str;
    };

    // cache jQuery
    UI.$ = $;

    UI.$doc  = UI.$(document);
    UI.$win  = UI.$(window);
    UI.$html = UI.$('html');

    UI.support = {};
    UI.support.transition = (function() {

        var transitionEnd = (function() {

            var element = doc.body || doc.documentElement,
                transEndEventNames = {
                    WebkitTransition : 'webkitTransitionEnd',
                    MozTransition    : 'transitionend',
                    OTransition      : 'oTransitionEnd otransitionend',
                    transition       : 'transitionend'
                }, name;

            for (name in transEndEventNames) {
                if (element.style[name] !== undefined) return transEndEventNames[name];
            }
        }());

        return transitionEnd && { end: transitionEnd };
    })();

    UI.support.animation = (function() {

        var animationEnd = (function() {

            var element = doc.body || doc.documentElement,
                animEndEventNames = {
                    WebkitAnimation : 'webkitAnimationEnd',
                    MozAnimation    : 'animationend',
                    OAnimation      : 'oAnimationEnd oanimationend',
                    animation       : 'animationend'
                }, name;

            for (name in animEndEventNames) {
                if (element.style[name] !== undefined) return animEndEventNames[name];
            }
        }());

        return animationEnd && { end: animationEnd };
    })();

    // requestAnimationFrame polyfill
    //https://github.com/darius/requestAnimationFrame
    (function() {

        Date.now = Date.now || function() { return new Date().getTime(); };

        var vendors = ['webkit', 'moz'];
        for (var i = 0; i < vendors.length && !window.requestAnimationFrame; ++i) {
            var vp = vendors[i];
            window.requestAnimationFrame = window[vp+'RequestAnimationFrame'];
            window.cancelAnimationFrame = (window[vp+'CancelAnimationFrame']
                                       || window[vp+'CancelRequestAnimationFrame']);
        }
        if (/iP(ad|hone|od).*OS 6/.test(window.navigator.userAgent) // iOS6 is buggy
            || !window.requestAnimationFrame || !window.cancelAnimationFrame) {
            var lastTime = 0;
            window.requestAnimationFrame = function(callback) {
                var now = Date.now();
                var nextTime = Math.max(lastTime + 16, now);
                return setTimeout(function() { callback(lastTime = nextTime); },
                                  nextTime - now);
            };
            window.cancelAnimationFrame = clearTimeout;
        }
    }());

    UI.support.touch = (
        ('ontouchstart' in document) ||
        (global.DocumentTouch && document instanceof global.DocumentTouch)  ||
        (global.navigator.msPointerEnabled && global.navigator.msMaxTouchPoints > 0) || //IE 10
        (global.navigator.pointerEnabled && global.navigator.maxTouchPoints > 0) || //IE >=11
        false
    );

    UI.support.mutationobserver = (global.MutationObserver || global.WebKitMutationObserver || null);

    UI.Utils = {};

    UI.Utils.isFullscreen = function() {
        return document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement || document.fullscreenElement || false;
    };

    UI.Utils.str2json = function(str, notevil) {
        try {
            if (notevil) {
                return JSON.parse(str
                    // wrap keys without quote with valid double quote
                    .replace(/([\$\w]+)\s*:/g, function(_, $1){return '"'+$1+'":';})
                    // replacing single quote wrapped ones to double quote
                    .replace(/'([^']+)'/g, function(_, $1){return '"'+$1+'"';})
                );
            } else {
                return (new Function("", "var json = " + str + "; return JSON.parse(JSON.stringify(json));"))();
            }
        } catch(e) { return false; }
    };

    UI.Utils.debounce = function(func, wait, immediate) {
        var timeout;
        return function() {
            var context = this, args = arguments;
            var later = function() {
                timeout = null;
                if (!immediate) func.apply(context, args);
            };
            var callNow = immediate && !timeout;
            clearTimeout(timeout);
            timeout = setTimeout(later, wait);
            if (callNow) func.apply(context, args);
        };
    };

    UI.Utils.throttle = function (func, limit) {
        var wait = false;
        return function () {
            if (!wait) {
                func.call();
                wait = true;
                setTimeout(function () {
                    wait = false;
                }, limit);
            }
        }
    };

    UI.Utils.removeCssRules = function(selectorRegEx) {
        var idx, idxs, stylesheet, _i, _j, _k, _len, _len1, _len2, _ref;

        if(!selectorRegEx) return;

        setTimeout(function(){
            try {
              _ref = document.styleSheets;
              for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                stylesheet = _ref[_i];
                idxs = [];
                stylesheet.cssRules = stylesheet.cssRules;
                for (idx = _j = 0, _len1 = stylesheet.cssRules.length; _j < _len1; idx = ++_j) {
                  if (stylesheet.cssRules[idx].type === CSSRule.STYLE_RULE && selectorRegEx.test(stylesheet.cssRules[idx].selectorText)) {
                    idxs.unshift(idx);
                  }
                }
                for (_k = 0, _len2 = idxs.length; _k < _len2; _k++) {
                  stylesheet.deleteRule(idxs[_k]);
                }
              }
            } catch (_error) {}
        }, 0);
    };

    UI.Utils.isInView = function(element, options) {

        var $element = $(element);

        if (!$element.is(':visible')) {
            return false;
        }

        var window_left = UI.$win.scrollLeft(), window_top = UI.$win.scrollTop(), offset = $element.offset(), left = offset.left, top = offset.top;

        options = $.extend({topoffset:0, leftoffset:0}, options);

        if (top + $element.height() >= window_top && top - options.topoffset <= window_top + UI.$win.height() &&
            left + $element.width() >= window_left && left - options.leftoffset <= window_left + UI.$win.width()) {
          return true;
        } else {
          return false;
        }
    };

    UI.Utils.checkDisplay = function(context, initanimation) {

        var elements = UI.$('[data-uk-margin], [data-uk-grid-match], [data-uk-grid-margin], [data-uk-check-display]', context || document), animated;

        if (context && !elements.length) {
            elements = $(context);
        }

        elements.trigger('display.uk.check');

        // fix firefox / IE animations
        if (initanimation) {

            if (typeof(initanimation)!='string') {
                initanimation = '[class*="uk-animation-"]';
            }

            elements.find(initanimation).each(function(){

                var ele  = UI.$(this),
                    cls  = ele.attr('class'),
                    anim = cls.match(/uk-animation-(.+)/);

                ele.removeClass(anim[0]).width();

                ele.addClass(anim[0]);
            });
        }

        return elements;
    };

    UI.Utils.options = function(string) {

        if ($.type(string)!='string') return string;

        if (string.indexOf(':') != -1 && string.trim().substr(-1) != '}') {
            string = '{'+string+'}';
        }

        var start = (string ? string.indexOf("{") : -1), options = {};

        if (start != -1) {
            try {
                options = UI.Utils.str2json(string.substr(start));
            } catch (e) {}
        }

        return options;
    };

    UI.Utils.animate = function(element, cls) {

        var d = $.Deferred();

        element = UI.$(element);

        element.css('display', 'none').addClass(cls).one(UI.support.animation.end, function() {
            element.removeClass(cls);
            d.resolve();
        });

        element.css('display', '');

        return d.promise();
    };

    UI.Utils.uid = function(prefix) {
        return (prefix || 'id') + (new Date().getTime())+"RAND"+(Math.ceil(Math.random() * 100000));
    };

    UI.Utils.template = function(str, data) {

        var tokens = str.replace(/\n/g, '\\n').replace(/\{\{\{\s*(.+?)\s*\}\}\}/g, "{{!$1}}").split(/(\{\{\s*(.+?)\s*\}\})/g),
            i=0, toc, cmd, prop, val, fn, output = [], openblocks = 0;

        while(i < tokens.length) {

            toc = tokens[i];

            if(toc.match(/\{\{\s*(.+?)\s*\}\}/)) {
                i = i + 1;
                toc  = tokens[i];
                cmd  = toc[0];
                prop = toc.substring(toc.match(/^(\^|\#|\!|\~|\:)/) ? 1:0);

                switch(cmd) {
                    case '~':
                        output.push("for(var $i=0;$i<"+prop+".length;$i++) { var $item = "+prop+"[$i];");
                        openblocks++;
                        break;
                    case ':':
                        output.push("for(var $key in "+prop+") { var $val = "+prop+"[$key];");
                        openblocks++;
                        break;
                    case '#':
                        output.push("if("+prop+") {");
                        openblocks++;
                        break;
                    case '^':
                        output.push("if(!"+prop+") {");
                        openblocks++;
                        break;
                    case '/':
                        output.push("}");
                        openblocks--;
                        break;
                    case '!':
                        output.push("__ret.push("+prop+");");
                        break;
                    default:
                        output.push("__ret.push(escape("+prop+"));");
                        break;
                }
            } else {
                output.push("__ret.push('"+toc.replace(/\'/g, "\\'")+"');");
            }
            i = i + 1;
        }

        fn  = new Function('$data', [
            'var __ret = [];',
            'try {',
            'with($data){', (!openblocks ? output.join('') : '__ret = ["Not all blocks are closed correctly."]'), '};',
            '}catch(e){__ret = [e.message];}',
            'return __ret.join("").replace(/\\n\\n/g, "\\n");',
            "function escape(html) { return String(html).replace(/&/g, '&amp;').replace(/\"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');}"
        ].join("\n"));

        return data ? fn(data) : fn;
    };

    UI.Utils.events       = {};
    UI.Utils.events.click = UI.support.touch ? 'tap' : 'click';

    global.UIkit = UI;

    // deprecated

    UI.fn = function(command, options) {

        var args = arguments, cmd = command.match(/^([a-z\-]+)(?:\.([a-z]+))?/i), component = cmd[1], method = cmd[2];

        if (!UI[component]) {
            $.error("UIkit component [" + component + "] does not exist.");
            return this;
        }

        return this.each(function() {
            var $this = $(this), data = $this.data(component);
            if (!data) $this.data(component, (data = UI[component](this, method ? undefined : options)));
            if (method) data[method].apply(data, Array.prototype.slice.call(args, 1));
        });
    };

    $.UIkit          = UI;
    $.fn.uk          = UI.fn;

    UI.langdirection = UI.$html.attr("dir") == "rtl" ? "right" : "left";

    UI.components    = {};

    UI.component = function(name, def) {

        var fn = function(element, options) {

            var $this = this;

            this.UIkit   = UI;
            this.element = element ? UI.$(element) : null;
            this.options = $.extend(true, {}, this.defaults, options);
            this.plugins = {};

            if (this.element) {
                this.element.data(name, this);
            }

            this.init();

            (this.options.plugins.length ? this.options.plugins : Object.keys(fn.plugins)).forEach(function(plugin) {

                if (fn.plugins[plugin].init) {
                    fn.plugins[plugin].init($this);
                    $this.plugins[plugin] = true;
                }

            });

            this.trigger('init.uk.component', [name, this]);

            return this;
        };

        fn.plugins = {};

        $.extend(true, fn.prototype, {

            defaults : {plugins: []},

            boot: function(){},
            init: function(){},

            on: function(a1,a2,a3){
                return UI.$(this.element || this).on(a1,a2,a3);
            },

            one: function(a1,a2,a3){
                return UI.$(this.element || this).one(a1,a2,a3);
            },

            off: function(evt){
                return UI.$(this.element || this).off(evt);
            },

            trigger: function(evt, params) {
                return UI.$(this.element || this).trigger(evt, params);
            },

            find: function(selector) {
                return UI.$(this.element ? this.element: []).find(selector);
            },

            proxy: function(obj, methods) {

                var $this = this;

                methods.split(' ').forEach(function(method) {
                    if (!$this[method]) $this[method] = function() { return obj[method].apply(obj, arguments); };
                });
            },

            mixin: function(obj, methods) {

                var $this = this;

                methods.split(' ').forEach(function(method) {
                    if (!$this[method]) $this[method] = obj[method].bind($this);
                });
            },

            option: function() {

                if (arguments.length == 1) {
                    return this.options[arguments[0]] || undefined;
                } else if (arguments.length == 2) {
                    this.options[arguments[0]] = arguments[1];
                }
            }

        }, def);

        this.components[name] = fn;

        this[name] = function() {

            var element, options;

            if (arguments.length) {

                switch(arguments.length) {
                    case 1:

                        if (typeof arguments[0] === "string" || arguments[0].nodeType || arguments[0] instanceof jQuery) {
                            element = $(arguments[0]);
                        } else {
                            options = arguments[0];
                        }

                        break;
                    case 2:

                        element = $(arguments[0]);
                        options = arguments[1];
                        break;
                }
            }

            if (element && element.data(name)) {
                return element.data(name);
            }

            return (new UI.components[name](element, options));
        };

        if (UI.domready) {
            UI.component.boot(name);
        }

        return fn;
    };

    UI.plugin = function(component, name, def) {
        this.components[component].plugins[name] = def;
    };

    UI.component.boot = function(name) {

        if (UI.components[name].prototype && UI.components[name].prototype.boot && !UI.components[name].booted) {
            UI.components[name].prototype.boot.apply(UI, []);
            UI.components[name].booted = true;
        }
    };

    UI.component.bootComponents = function() {

        for (var component in UI.components) {
            UI.component.boot(component);
        }
    };


    // DOM mutation save ready helper function

    UI.domObservers = [];
    UI.domready     = false;

    UI.ready = function(fn) {

        UI.domObservers.push(fn);

        if (UI.domready) {
            fn(document);
        }
    };

    UI.on = function(a1,a2,a3){

        if (a1 && a1.indexOf('ready.uk.dom') > -1 && UI.domready) {
            a2.apply(UI.$doc);
        }

        return UI.$doc.on(a1,a2,a3);
    };

    UI.one = function(a1,a2,a3){

        if (a1 && a1.indexOf('ready.uk.dom') > -1 && UI.domready) {
            a2.apply(UI.$doc);
            return UI.$doc;
        }

        return UI.$doc.one(a1,a2,a3);
    };

    UI.trigger = function(evt, params) {
        return UI.$doc.trigger(evt, params);
    };

    UI.domObserve = function(selector, fn) {

        if(!UI.support.mutationobserver) return;

        fn = fn || function() {};

        UI.$(selector).each(function() {

            var element  = this,
                $element = UI.$(element);

            if ($element.data('observer')) {
                return;
            }

            try {

                var observer = new UI.support.mutationobserver(UI.Utils.debounce(function(mutations) {
                    fn.apply(element, []);
                    $element.trigger('changed.uk.dom');
                }, 50), {childList: true, subtree: true});

                // pass in the target node, as well as the observer options
                observer.observe(element, { childList: true, subtree: true });

                $element.data('observer', observer);

            } catch(e) {}
        });
    };

    UI.init = function(root) {

        root = root || document;

        UI.domObservers.forEach(function(fn){
            fn(root);
        });
    };

    UI.on('domready.uk.dom', function(){

        UI.init();

        if (UI.domready) UI.Utils.checkDisplay();
    });

    document.addEventListener('DOMContentLoaded', function(){

        var domReady = function() {

            UI.$body = UI.$('body');

            UI.trigger('beforeready.uk.dom');

            UI.component.bootComponents();

            // custom scroll observer
            var rafToken = requestAnimationFrame((function(){

                var memory = {dir: {x:0, y:0}, x: window.pageXOffset, y:window.pageYOffset};

                var fn = function(){
                    // reading this (window.page[X|Y]Offset) causes a full page recalc of the layout in Chrome,
                    // so we only want to do this once
                    var wpxo = window.pageXOffset;
                    var wpyo = window.pageYOffset;

                    // Did the scroll position change since the last time we were here?
                    if (memory.x != wpxo || memory.y != wpyo) {

                        // Set the direction of the scroll and store the new position
                        if (wpxo != memory.x) {memory.dir.x = wpxo > memory.x ? 1:-1; } else { memory.dir.x = 0; }
                        if (wpyo != memory.y) {memory.dir.y = wpyo > memory.y ? 1:-1; } else { memory.dir.y = 0; }

                        memory.x = wpxo;
                        memory.y = wpyo;

                        // Trigger the scroll event, this could probably be sent using memory.clone() but this is
                        // more explicit and easier to see exactly what is being sent in the event.
                        UI.$doc.trigger('scrolling.uk.document', [{
                            "dir": {"x": memory.dir.x, "y": memory.dir.y}, "x": wpxo, "y": wpyo
                        }]);
                    }

                    cancelAnimationFrame(rafToken);
                    rafToken = requestAnimationFrame(fn);
                };

                if (UI.support.touch) {
                    UI.$html.on('touchmove touchend MSPointerMove MSPointerUp pointermove pointerup', fn);
                }

                if (memory.x || memory.y) fn();

                return fn;

            })());

            // run component init functions on dom
            UI.trigger('domready.uk.dom');

            if (UI.support.touch) {

                // remove css hover rules for touch devices
                // UI.Utils.removeCssRules(/\.uk-(?!navbar).*:hover/);

                // viewport unit fix for uk-height-viewport - should be fixed in iOS 8
                if (navigator.userAgent.match(/(iPad|iPhone|iPod)/g)) {

                    UI.$win.on('load orientationchange resize', UI.Utils.debounce((function(){

                        var fn = function() {
                            $('.uk-height-viewport').css('height', window.innerHeight);
                            return fn;
                        };

                        return fn();

                    })(), 100));
                }
            }

            UI.trigger('afterready.uk.dom');

            // mark that domready is left behind
            UI.domready = true;

            // auto init js components
            if (UI.support.mutationobserver) {

                var initFn = UI.Utils.debounce(function(){
                    requestAnimationFrame(function(){ UI.init(document.body);});
                }, 10);

                (new UI.support.mutationobserver(function(mutations) {

                    var init = false;

                    mutations.every(function(mutation){

                        if (mutation.type != 'childList') return true;

                        for (var i = 0, node; i < mutation.addedNodes.length; ++i) {

                            node = mutation.addedNodes[i];

                            if (node.outerHTML && node.outerHTML.indexOf('data-uk-') !== -1) {
                                return (init = true) && false;
                            }
                        }
                        return true;
                    });

                    if (init) initFn();

                })).observe(document.body, {childList: true, subtree: true});
            }
        };

        if (document.readyState == 'complete' || document.readyState == 'interactive') {
            setTimeout(domReady);
        }

        return domReady;

    }());

    // add touch identifier class
    UI.$html.addClass(UI.support.touch ? "uk-touch" : "uk-notouch");

    // add uk-hover class on tap to support overlays on touch devices
    if (UI.support.touch) {

        var hoverset = false,
            exclude,
            hovercls = 'uk-hover',
            selector = '.uk-overlay, .uk-overlay-hover, .uk-overlay-toggle, .uk-animation-hover, .uk-has-hover';

        UI.$html.on('mouseenter touchstart MSPointerDown pointerdown', selector, function() {

            if (hoverset) $('.'+hovercls).removeClass(hovercls);

            hoverset = $(this).addClass(hovercls);

        }).on('mouseleave touchend MSPointerUp pointerup', function(e) {

            exclude = $(e.target).parents(selector);

            if (hoverset) {
                hoverset.not(exclude).removeClass(hovercls);
            }
        });
    }

    return UI;
});