/*! UIkit 2.27.2 | www.getuikit.com | © 2014 YOOtheme | MIT License */ (function(addon) {

var component;

if (window.UIkit) {
    component = addon(UIkit);
}

if (typeof define == 'function' && define.amd) { // AMD
    define('uikit-lightbox', ['uikit'], function(){
        return component || addon(UIkit);
    });
}

})(function(UI){

"use strict";

var modal, cache = {};

UI.component('lightbox', {

    defaults: {
        allowfullscreen : true,
        duration        : 400,
        group           : false,
        keyboard        : true
    },

    index : 0,
    items : false,

    boot: function() {

        UI.$html.on('click', '[data-uk-lightbox]', function(e){

            e.preventDefault();

            var link = UI.$(this);

            if (!link.data('lightbox')) {

                UI.lightbox(link, UI.Utils.options(link.attr('data-uk-lightbox')));
            }

            link.data('lightbox').show(link);
        });

        // keyboard navigation
        UI.$doc.on('keyup', function(e) {

            if (modal && modal.is(':visible') && modal.lightbox.options.keyboard) {

                e.preventDefault();

                switch(e.keyCode) {
                    case 37:
                        modal.lightbox.previous();
                        break;
                    case 39:
                        modal.lightbox.next();
                        break;
                }
            }
        });
    },

    init: function() {

        var siblings = [];

        this.index    = 0;
        this.siblings = [];

        if (this.element && this.element.length) {

            var domSiblings  = this.options.group ? UI.$('[data-uk-lightbox*="'+this.options.group+'"]') : this.element;

            domSiblings.each(function() {

                var ele = UI.$(this);

                siblings.push({
                    source : ele.attr('href'),
                    title  : ele.attr('data-title') || ele.attr('title'),
                    type   : ele.attr("data-lightbox-type") || 'auto',
                    link   : ele
                });
            });

            this.index    = domSiblings.index(this.element);
            this.siblings = siblings;

        } else if (this.options.group && this.options.group.length) {
            this.siblings = this.options.group;
        }

        this.trigger('lightbox-init', [this]);
    },

    show: function(index) {

        this.modal = getModal(this);

        // stop previous animation
        this.modal.dialog.stop();
        this.modal.content.stop();

        var $this = this, promise = UI.$.Deferred(), data, item;

        index = index || 0;

        // index is a jQuery object or DOM element
        if (typeof(index) == 'object') {

            this.siblings.forEach(function(s, idx){

                if (index[0] === s.link[0]) {
                    index = idx;
                }
            });
        }

        // fix index if needed
        if ( index < 0 ) {
            index = this.siblings.length - index;
        } else if (!this.siblings[index]) {
            index = 0;
        }

        item   = this.siblings[index];

        data = {
            lightbox : $this,
            source   : item.source,
            type     : item.type,
            index    : index,
            promise  : promise,
            title    : item.title,
            item     : item,
            meta     : {
                content : '',
                width   : null,
                height  : null
            }
        };

        this.index = index;

        this.modal.content.empty();

        if (!this.modal.is(':visible')) {
            this.modal.content.css({width:'', height:''}).empty();
            this.modal.modal.show();
        }

        this.modal.loader.removeClass('uk-hidden');

        promise.promise().done(function() {

            $this.data = data;
            $this.fitSize(data);

        }).fail(function(){

            data.meta.content = '<div class="uk-position-cover uk-flex uk-flex-middle uk-flex-center"><strong>Loading resource failed!</strong></div>';
            data.meta.width   = 400;
            data.meta.height  = 300;

            $this.data = data;
            $this.fitSize(data);
        });

        $this.trigger('showitem.uk.lightbox', [data]);
    },

    fitSize: function() {

        var $this    = this,
            data     = this.data,
            pad      = this.modal.dialog.outerWidth() - this.modal.dialog.width(),
            dpadTop  = parseInt(this.modal.dialog.css('margin-top'), 10),
            dpadBot  = parseInt(this.modal.dialog.css('margin-bottom'), 10),
            dpad     = dpadTop + dpadBot,
            content  = data.meta.content,
            duration = $this.options.duration;

        if (this.siblings.length > 1) {

            content = [
                content,
                '<a href="#" class="uk-slidenav uk-slidenav-contrast uk-slidenav-previous uk-hidden-touch" data-lightbox-previous></a>',
                '<a href="#" class="uk-slidenav uk-slidenav-contrast uk-slidenav-next uk-hidden-touch" data-lightbox-next></a>'
            ].join('');
        }

        // calculate width
        var tmp = UI.$('<div>&nbsp;</div>').css({
            opacity   : 0,
            position  : 'absolute',
            top       : 0,
            left      : 0,
            width     : '100%',
            maxWidth  : $this.modal.dialog.css('max-width'),
            padding   : $this.modal.dialog.css('padding'),
            margin    : $this.modal.dialog.css('margin')
        }), maxwidth, maxheight, w = data.meta.width, h = data.meta.height;

        tmp.appendTo('body').width();

        maxwidth  = tmp.width();
        maxheight = window.innerHeight - dpad;

        tmp.remove();

        this.modal.dialog.find('.uk-modal-caption').remove();

        if (data.title) {
            this.modal.dialog.append('<div class="uk-modal-caption">'+data.title+'</div>');
            maxheight -= this.modal.dialog.find('.uk-modal-caption').outerHeight();
        }

        if (maxwidth < data.meta.width) {

            h = Math.floor( h * (maxwidth / w) );
            w = maxwidth;
        }

        if (maxheight < h) {

            h = Math.floor(maxheight);
            w = Math.ceil(data.meta.width * (maxheight/data.meta.height));
        }

        this.modal.content.css('opacity', 0).width(w).html(content);

        if (data.type == 'iframe') {
            this.modal.content.find('iframe:first').height(h);
        }

        var dh   = h + pad,
            t    = Math.floor(window.innerHeight/2 - dh/2) - dpad;

        if (t < 0) { t = 0; }

        this.modal.closer.addClass('uk-hidden');

        if ($this.modal.data('mwidth') == w &&  $this.modal.data('mheight') == h) {
            duration = 0;
        }

        this.modal.dialog.animate({width: w + pad, height: h + pad, top: t }, duration, 'swing', function() {
            $this.modal.loader.addClass('uk-hidden');
            $this.modal.content.css({width:''}).animate({opacity: 1}, function() {
                $this.modal.closer.removeClass('uk-hidden');
            });

            $this.modal.data({mwidth: w, mheight: h});
        });
    },

    next: function() {
        this.show(this.siblings[(this.index+1)] ? (this.index+1) : 0);
    },

    previous: function() {
        this.show(this.siblings[(this.index-1)] ? (this.index-1) : this.siblings.length-1);
    }
});

// Plugins

UI.plugin('lightbox', 'image', {

    init: function(lightbox) {

        lightbox.on('showitem.uk.lightbox', function(e, data){

            if (data.type == 'image' || data.source && data.source.match(/\.(jpg|jpeg|png|gif|svg)$/i)) {

                var resolve = function(source, width, height) {

                    data.meta = {
                        content : '<img class="uk-responsive-width" width="'+width+'" height="'+height+'" src ="'+source+'">',
                        width   : width,
                        height  : height
                    };

                    data.type = 'image';

                    data.promise.resolve();
                };

                if (!cache[data.source]) {

                    var img = new Image();

                    img.onerror = function(){
                        data.promise.reject('Loading image failed');
                    };

                    img.onload = function(){
                        cache[data.source] = {width: img.width, height: img.height};
                        resolve(data.source, cache[data.source].width, cache[data.source].height);
                    };

                    img.src = data.source;

                } else {
                    resolve(data.source, cache[data.source].width, cache[data.source].height);
                }
            }
        });
    }
});

UI.plugin('lightbox', 'youtube', {

    init: function(lightbox) {

        var youtubeRegExp = /(\/\/.*?youtube\.[a-z]+)\/watch\?v=([^&]+)&?(.*)/,
            youtubeRegExpShort = /youtu\.be\/(.*)/;

        lightbox.on('showitem.uk.lightbox', function(e, data){

            var id, matches, resolve = function(id, width, height) {

                data.meta = {
                    content: '<iframe src="//www.youtube.com/embed/'+id+'" width="'+width+'" height="'+height+'" style="max-width:100%;"'+(modal.lightbox.options.allowfullscreen?' allowfullscreen':'')+'></iframe>',
                    width: width,
                    height: height
                };

                data.type = 'iframe';

                data.promise.resolve();
            };

            if (matches = data.source.match(youtubeRegExp)) {
                id = matches[2];
            }

            if (matches = data.source.match(youtubeRegExpShort)) {
                id = matches[1];
            }

            if (id) {

                if(!cache[id]) {

                    var img = new Image(), lowres = false;

                    img.onerror = function(){
                        cache[id] = {width:640, height:320};
                        resolve(id, cache[id].width, cache[id].height);
                    };

                    img.onload = function(){
                        //youtube default 404 thumb, fall back to lowres
                        if (img.width == 120 && img.height == 90) {
                            if (!lowres) {
                                lowres = true;
                                img.src = '//img.youtube.com/vi/' + id + '/0.jpg';
                            } else {
                                cache[id] = {width: 640, height: 320};
                                resolve(id, cache[id].width, cache[id].height);
                            }
                        } else {
                            cache[id] = {width: img.width, height: img.height};
                            resolve(id, img.width, img.height);
                        }
                    };

                    img.src = '//img.youtube.com/vi/'+id+'/maxresdefault.jpg';

                } else {
                    resolve(id, cache[id].width, cache[id].height);
                }

                e.stopImmediatePropagation();
            }
        });
    }
});

UI.plugin('lightbox', 'vimeo', {

    init: function(lightbox) {

        var regex = /(\/\/.*?)vimeo\.[a-z]+\/([0-9]+).*?/, matches;

        lightbox.on('showitem.uk.lightbox', function(e, data){

            var id, resolve = function(id, width, height) {

                data.meta = {
                    content: '<iframe src="//player.vimeo.com/video/'+id+'" width="'+width+'" height="'+height+'" style="width:100%;box-sizing:border-box;"'+(modal.lightbox.options.allowfullscreen?' allowfullscreen':'')+'></iframe>',
                    width: width,
                    height: height
                };

                data.type = 'iframe';

                data.promise.resolve();
            };

            if (matches = data.source.match(regex)) {

                id = matches[2];

                if(!cache[id]) {

                    UI.$.ajax({
                        type     : 'GET',
                        url      : '//vimeo.com/api/oembed.json?url=' + encodeURI(data.source),
                        jsonp    : 'callback',
                        dataType : 'jsonp',
                        success  : function(data) {
                            cache[id] = {width:data.width, height:data.height};
                            resolve(id, cache[id].width, cache[id].height);
                        }
                    });

                } else {
                    resolve(id, cache[id].width, cache[id].height);
                }

                e.stopImmediatePropagation();
            }
        });
    }
});

UI.plugin('lightbox', 'video', {

    init: function(lightbox) {

        lightbox.on('showitem.uk.lightbox', function(e, data){

            var resolve = function(source, width, height) {

                data.meta = {
                    content: '<video class="uk-responsive-width" src="'+source+'" width="'+width+'" height="'+height+'" controls></video>',
                    width: width,
                    height: height
                };

                data.type = 'video';

                data.promise.resolve();
            };

            if (data.type == 'video' || data.source.match(/\.(mp4|webm|ogv)$/i)) {

                if (!cache[data.source]) {

                    var vid = UI.$('<video style="position:fixed;visibility:hidden;top:-10000px;"></video>').attr('src', data.source).appendTo('body');

                    var idle = setInterval(function() {

                        if (vid[0].videoWidth) {
                            clearInterval(idle);
                            cache[data.source] = {width: vid[0].videoWidth, height: vid[0].videoHeight};
                            resolve(data.source, cache[data.source].width, cache[data.source].height);
                            vid.remove();
                        }

                    }, 20);

                } else {
                    resolve(data.source, cache[data.source].width, cache[data.source].height);
                }
            }
        });
    }
});

UIkit.plugin('lightbox', 'iframe', {

    init: function (lightbox) {

        lightbox.on('showitem.uk.lightbox', function (e, data) {

            var resolve = function (source, width, height) {

                data.meta = {
                    content: '<iframe class="uk-responsive-width" src="' + source + '" width="' + width + '" height="' + height + '"'+(modal.lightbox.options.allowfullscreen?' allowfullscreen':'')+'></iframe>',
                    width: width,
                    height: height
                };

                data.type = 'iframe';

                data.promise.resolve();
            };

            if (data.type === 'iframe' || data.source.match(/\.(html|php)$/)) {
                resolve(data.source, (lightbox.options.width || 800), (lightbox.options.height || 600));
            }
        });

    }
});

function getModal(lightbox) {

    if (modal) {
        modal.lightbox = lightbox;
        return modal;
    }

    // init lightbox container
    modal = UI.$([
        '<div class="uk-modal">',
            '<div class="uk-modal-dialog uk-modal-dialog-lightbox uk-slidenav-position" style="margin-left:auto;margin-right:auto;width:200px;height:200px;top:'+Math.abs(window.innerHeight/2 - 200)+'px;">',
                '<a href="#" class="uk-modal-close uk-close uk-close-alt"></a>',
                '<div class="uk-lightbox-content"></div>',
                '<div class="uk-modal-spinner uk-hidden"></div>',
            '</div>',
        '</div>'
    ].join('')).appendTo('body');

    modal.dialog  = modal.find('.uk-modal-dialog:first');
    modal.content = modal.find('.uk-lightbox-content:first');
    modal.loader  = modal.find('.uk-modal-spinner:first');
    modal.closer  = modal.find('.uk-close.uk-close-alt');
    modal.modal   = UI.modal(modal, {modal:false});

    // next / previous
    modal.on('swipeRight swipeLeft', function(e) {
        modal.lightbox[e.type=='swipeLeft' ? 'next':'previous']();
    }).on('click', '[data-lightbox-previous], [data-lightbox-next]', function(e){
        e.preventDefault();
        modal.lightbox[UI.$(this).is('[data-lightbox-next]') ? 'next':'previous']();
    });

    // destroy content on modal hide
    modal.on('hide.uk.modal', function(e) {
        modal.content.html('');
    });

    var resizeCache = {w: window.innerWidth, h:window.innerHeight};

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

        if (resizeCache.w !== window.innerWidth && modal.is(':visible') && !UI.Utils.isFullscreen()) {
            modal.lightbox.fitSize();
        }

        resizeCache = {w: window.innerWidth, h:window.innerHeight};

    }, 100));

    modal.lightbox = lightbox;

    return modal;
}

UI.lightbox.create = function(items, options) {

    if (!items) return;

    var group = [], o;

    items.forEach(function(item) {

        group.push(UI.$.extend({
            source : '',
            title  : '',
            type   : 'auto',
            link   : false
        }, (typeof(item) == 'string' ? {'source': item} : item)));
    });

    o = UI.lightbox(UI.$.extend({}, options, {'group':group}));

    return o;
};

return UI.lightbox;

});