/*! lg-fullscreen - v1.0.1 - 2016-09-30
* http://sachinchoolur.github.io/lightgallery
* copyright (c) 2016 sachin n; licensed gplv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // amd. register as an anonymous module unless amdmoduleid is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // node. does not work with strict commonjs, but
    // only commonjs-like environments that support module.exports,
    // like node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jquery);
  }
}(this, function ($) {

(function() {

    'use strict';

    var defaults = {
        fullscreen: true
    };

    var fullscreen = function(element) {

        // get lightgallery core plugin data
        this.core = $(element).data('lightgallery');

        this.$el = $(element);

        // extend module defalut settings with lightgallery core settings
        this.core.s = $.extend({}, defaults, this.core.s);

        this.init();

        return this;
    };

    fullscreen.prototype.init = function() {
        var fullscreen = '';
        if (this.core.s.fullscreen) {

            // check for fullscreen browser support
            if (!document.fullscreenenabled && !document.webkitfullscreenenabled &&
                !document.mozfullscreenenabled && !document.msfullscreenenabled) {
                return;
            } else {
                fullscreen = '<span class="lg-fullscreen lg-icon"></span>';
                this.core.$outer.find('.lg-toolbar').append(fullscreen);
                this.fullscreen();
            }
        }
    };

    fullscreen.prototype.requestfullscreen = function() {
        var el = document.documentelement;
        if (el.requestfullscreen) {
            el.requestfullscreen();
        } else if (el.msrequestfullscreen) {
            el.msrequestfullscreen();
        } else if (el.mozrequestfullscreen) {
            el.mozrequestfullscreen();
        } else if (el.webkitrequestfullscreen) {
            el.webkitrequestfullscreen();
        }
    };

    fullscreen.prototype.exitfullscreen = function() {
        if (document.exitfullscreen) {
            document.exitfullscreen();
        } else if (document.msexitfullscreen) {
            document.msexitfullscreen();
        } else if (document.mozcancelfullscreen) {
            document.mozcancelfullscreen();
        } else if (document.webkitexitfullscreen) {
            document.webkitexitfullscreen();
        }
    };

    // https://developer.mozilla.org/en-us/docs/web/guide/api/dom/using_full_screen_mode
    fullscreen.prototype.fullscreen = function() {
        var _this = this;

        $(document).on('fullscreenchange.lg webkitfullscreenchange.lg mozfullscreenchange.lg msfullscreenchange.lg', function() {
            _this.core.$outer.toggleclass('lg-fullscreen-on');
        });

        this.core.$outer.find('.lg-fullscreen').on('click.lg', function() {
            if (!document.fullscreenelement &&
                !document.mozfullscreenelement && !document.webkitfullscreenelement && !document.msfullscreenelement) {
                _this.requestfullscreen();
            } else {
                _this.exitfullscreen();
            }
        });

    };

    fullscreen.prototype.destroy = function() {

        // exit from fullscreen if activated
        this.exitfullscreen();

        $(document).off('fullscreenchange.lg webkitfullscreenchange.lg mozfullscreenchange.lg msfullscreenchange.lg');
    };

    $.fn.lightgallery.modules.fullscreen = fullscreen;

})();

}));