/*
 *
 * (c) Copyright Ascensio System Limited 2010-2017
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
*/
if (Common === undefined) {
    var Common = {};
}

if (Common.Utils === undefined) {
    Common.Utils = {};
}

Common.Utils = _.extend(new(function() {
    var userAgent = navigator.userAgent.toLowerCase(),
        check = function(regex){
            return regex.test(userAgent);
        },
        isStrict = document.compatMode == "CSS1Compat",
        version = function (is, regex) {
            var m;
            return (is && (m = regex.exec(userAgent))) ? parseFloat(m[1]) : 0;
        },
        docMode = document.documentMode,
        isEdge = check(/edge/),
        isOpera = check(/opera/),
        isOpera10_5 = isOpera && check(/version\/10\.5/),
        isIE = !isOpera && (check(/msie/) || check(/trident/) || check(/edge/)),
        isIE7 = isIE && ((check(/msie 7/) && docMode != 8 && docMode != 9 && docMode != 10) || docMode == 7),
        isIE8 = isIE && ((check(/msie 8/) && docMode != 7 && docMode != 9 && docMode != 10) || docMode == 8),
        isIE9 = isIE && ((check(/msie 9/) && docMode != 7 && docMode != 8 && docMode != 10) || docMode == 9),
        isIE10 = isIE && ((check(/msie 10/) && docMode != 7 && docMode != 8 && docMode != 9) || docMode == 10),
        isIE11 = isIE && ((check(/trident\/7\.0/) && docMode != 7 && docMode != 8 && docMode != 9 && docMode != 10) || docMode == 11),
        isIE6 = isIE && check(/msie 6/),
        isChrome = !isIE && check(/\bchrome\b/),
        isWebKit = !isIE && check(/webkit/),
        isSafari = !isIE && !isChrome && check(/safari/),
        isSafari2 = isSafari && check(/applewebkit\/4/), // unique to Safari 2
        isSafari3 = isSafari && check(/version\/3/),
        isSafari4 = isSafari && check(/version\/4/),
        isSafari5_0 = isSafari && check(/version\/5\.0/),
        isSafari5 = isSafari && check(/version\/5/),
        isGecko = !isWebKit && !isIE && check(/gecko/), // IE11 adds "like gecko" into the user agent string
        isGecko3 = isGecko && check(/rv:1\.9/),
        isGecko4 = isGecko && check(/rv:2\.0/),
        isGecko5 = isGecko && check(/rv:5\./),
        isGecko10 = isGecko && check(/rv:10\./),
        isFF3_0 = isGecko3 && check(/rv:1\.9\.0/),
        isFF3_5 = isGecko3 && check(/rv:1\.9\.1/),
        isFF3_6 = isGecko3 && check(/rv:1\.9\.2/),
        isWindows = check(/windows|win32/),
        isMac = check(/macintosh|mac os x/),
        isLinux = check(/linux/),
        chromeVersion = version(true, /\bchrome\/(\d+\.\d+)/),
        firefoxVersion = version(true, /\bfirefox\/(\d+\.\d+)/),
        ieVersion = version(isIE, /msie (\d+\.\d+)/),
        operaVersion = version(isOpera, /version\/(\d+\.\d+)/),
        safariVersion = version(isSafari, /version\/(\d+\.\d+)/),
        webKitVersion = version(isWebKit, /webkit\/(\d+\.\d+)/),
        isSecure = /^https/i.test(window.location.protocol),
        emailRe = /^(mailto:)?([a-z0-9'\._-]+@[a-z0-9\.-]+\.[a-z0-9]{2,4})([a-яё0-9\._%+-=\? :&]*)/i,
        ipRe = /^(((https?)|(ftps?)):\/\/)?([\-\wа-яё]*:?[\-\wа-яё]*@)?(((1[0-9]{2}|2[0-4][0-9]|25[0-5]|[1-9][0-9]|[0-9])\.){3}(1[0-9]{2}|2[0-4][0-9]|25[0-5]|[1-9][0-9]|[0-9]))(:\d+)?(\/[%\-\wа-яё]*(\.[\wа-яё]{2,})?(([\wа-яё\-\.\?\\\/+@&#;:`~=%!,\(\)]*)(\.[\wа-яё]{2,})?)*)*\/?/i,
        hostnameRe = /^(((https?)|(ftps?)):\/\/)?([\-\wа-яё]*:?[\-\wа-яё]*@)?(([\-\wа-яё]+\.)+[\wа-яё\-]{2,}(:\d+)?(\/[%\-\wа-яё]*(\.[\wа-яё]{2,})?(([\wа-яё\-\.\?\\\/+@&#;:`'~=%!,\(\)]*)(\.[\wа-яё]{2,})?)*)*\/?)/i,
        localRe = /^(((https?)|(ftps?)):\/\/)([\-\wа-яё]*:?[\-\wа-яё]*@)?(([\-\wа-яё]+)(:\d+)?(\/[%\-\wа-яё]*(\.[\wа-яё]{2,})?(([\wа-яё\-\.\?\\\/+@&#;:`'~=%!,\(\)]*)(\.[\wа-яё]{2,})?)*)*\/?)/i,
        emailStrongRe = /(mailto:)?([a-z0-9'\._-]+@[a-z0-9\.-]+\.[a-z0-9]{2,4})([a-яё0-9\._%+-=\?:&]*)/ig,
        ipStrongRe = /(((https?)|(ftps?)):\/\/([\-\wа-яё]*:?[\-\wа-яё]*@)?)(((1[0-9]{2}|2[0-4][0-9]|25[0-5]|[1-9][0-9]|[0-9])\.){3}(1[0-9]{2}|2[0-4][0-9]|25[0-5]|[1-9][0-9]|[0-9]))(:\d+)?(\/[%\-\wа-яё]*(\.[\wа-яё]{2,})?(([\wа-яё\-\.\?\\\/+@&#;:`~=%!,\(\)]*)(\.[\wа-яё]{2,})?)*)*\/?/ig,
        hostnameStrongRe = /((((https?)|(ftps?)):\/\/([\-\wа-яё]*:?[\-\wа-яё]*@)?)|(([\-\wа-яё]*:?[\-\wа-яё]*@)?www\.))((([\-\wа-яё]+\.)+[\wа-яё\-]{2,}|([\-\wа-яё]+))(:\d+)?(\/[%\-\wа-яё]*(\.[\wа-яё]{2,})?(([\wа-яё\-\.\?\\\/+@&#;:`~=%!,\(\)]*)(\.[\wа-яё]{2,})?)*)*\/?)/ig,
        documentSettingsType = {
        	Paragraph  : 0,
            Table      : 1,
            Header     : 2,
            TextArt    : 3,
            Shape      : 4,
            Image      : 5,
            Slide      : 6,
            Chart      : 7,
            MailMerge  : 8,
            Signature  : 9,
            Pivot      : 10
        },
        isMobile = /android|avantgo|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od|ad)|iris|kindle|lge |maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent || navigator.vendor || window.opera),
        me = this,
        checkSize = function() {
			me.zoom = 1;
			if (isChrome && !isOpera && !isMobile && document && document.firstElementChild && document.body)
			{
                // делаем простую проверку
                // считаем: 0 < window.devicePixelRatio < 2 => _devicePixelRatio = 1; zoom = window.devicePixelRatio / _devicePixelRatio;
                // считаем: window.devicePixelRatio >= 2 => _devicePixelRatio = 2; zoom = window.devicePixelRatio / _devicePixelRatio;
                if (window.devicePixelRatio > 0.1)
                {
                    if (window.devicePixelRatio < 1.99)
                    {
                        var _devicePixelRatio = 1;
                        me.zoom = window.devicePixelRatio / _devicePixelRatio;
                    }
                    else
                    {
                        var _devicePixelRatio = 2;
                        me.zoom = window.devicePixelRatio / _devicePixelRatio;
                    }
                    // chrome 54.x: zoom = "reset" - clear retina zoom (windows)
                    //document.firstElementChild.style.zoom = "reset";
                    document.firstElementChild.style.zoom = 1.0 / me.zoom;
                }
                else
                    document.firstElementChild.style.zoom = "normal";
			}
            me.innerWidth = window.innerWidth * me.zoom;
            me.innerHeight = window.innerHeight * me.zoom;
        };
        me.zoom = 1;
        me.innerWidth = window.innerWidth;
        me.innerHeight = window.innerHeight;
        checkSize();
        $(window).on('resize', checkSize);

    return {
        userAgent: userAgent,
        isStrict: isStrict,
        isIEQuirks: isIE && (!isStrict && (isIE6 || isIE7 || isIE8 || isIE9)),
        isOpera : isOpera,
        isOpera10_5 : isOpera10_5,
        isWebKit : isWebKit,
        isChrome : isChrome,
        isSafari : isSafari,
        isSafari3 : isSafari3,
        isSafari4 : isSafari4,
        isSafari5 : isSafari5,
        isSafari5_0 : isSafari5_0,
        isSafari2 : isSafari2,
        isIE : isIE,
        isIE6 : isIE6,
        isIE7 : isIE7,
        isIE7m : isIE6 || isIE7,
        isIE7p : isIE && !isIE6,
        isIE8 : isIE8,
        isIE8m : isIE6 || isIE7 || isIE8,
        isIE8p : isIE && !(isIE6 || isIE7),
        isIE9 : isIE9,
        isIE9m : isIE6 || isIE7 || isIE8 || isIE9,
        isIE9p : isIE && !(isIE6 || isIE7 || isIE8),
        isIE10 : isIE10,
        isIE10m : isIE6 || isIE7 || isIE8 || isIE9 || isIE10,
        isIE10p : isIE && !(isIE6 || isIE7 || isIE8 || isIE9),
        isIE11: isIE11,
        isIE11m : isIE6 || isIE7 || isIE8 || isIE9 || isIE10 || isIE11,
        isIE11p : isIE && !(isIE6 || isIE7 || isIE8 || isIE9 || isIE10),
        isGecko : isGecko,
        isGecko3 : isGecko3,
        isGecko4 : isGecko4,
        isGecko5 : isGecko5,
        isGecko10 : isGecko10,
        isFF3_0 : isFF3_0,
        isFF3_5 : isFF3_5,
        isFF3_6 : isFF3_6,
        isFF4 : 4 <= firefoxVersion && firefoxVersion < 5,
        isFF5 : 5 <= firefoxVersion && firefoxVersion < 6,
        isFF10 : 10 <= firefoxVersion && firefoxVersion < 11,
        isLinux : isLinux,
        isWindows : isWindows,
        isMac : isMac,
        chromeVersion: chromeVersion,
        firefoxVersion: firefoxVersion,
        ieVersion: ieVersion,
        operaVersion: operaVersion,
        safariVersion: safariVersion,
        webKitVersion: webKitVersion,
        isSecure: isSecure,
        emailRe: emailRe,
        ipRe: ipRe,
        hostnameRe: hostnameRe,
        localRe: localRe,
        emailStrongRe: emailStrongRe,
        ipStrongRe: ipStrongRe,
        hostnameStrongRe: hostnameStrongRe,
        documentSettingsType: documentSettingsType,
        zoom: function() {return me.zoom;},
        innerWidth: function() {return me.innerWidth;},
        innerHeight: function() {return me.innerHeight;}
    }
})(), Common.Utils || {});

Common.Utils.ThemeColor = new(function() {
    return {
        ThemeValues: [6, 15, 7, 16, 0, 1, 2, 3, 4, 5],

        setColors: function(colors, standart_colors) {
            var i, j, item;

            if (standart_colors && standart_colors.length > 0) {
                var standartcolors = [];

                for (i = 0; i < standart_colors.length; i++) {
                    item = this.getHexColor(standart_colors[i].get_r(), standart_colors[i].get_g(), standart_colors[i].get_b());
                    standartcolors.push(item);
                }

                this.standartcolors = standartcolors;
            }

            var effectСolors= [];

            for (i = 0; i < 6; i++) {
                for (j = 0; j < 10; j++) {
                    var idx = i + j * 6;
                    item = {
                        color: this.getHexColor(colors[idx].get_r(), colors[idx].get_g(), colors[idx].get_b()),
                        effectId: idx,
                        effectValue: this.ThemeValues[j]
                    };
                    effectСolors.push(item);
                }
            }
            this.effectcolors = effectСolors;
        },

        getEffectColors: function() {
            return this.effectcolors;
        },

        getStandartColors: function() {
            return this.standartcolors;
        },

        getHexColor: function(r, g, b){
            r = r.toString(16);
            g = g.toString(16);
            b = b.toString(16);
            if (r.length == 1) r = '0' + r;
            if (g.length == 1) g = '0' + g;
            if (b.length == 1) b = '0' + b;
            return r + g + b;
        },

        getRgbColor: function(clr){
            var color = (typeof(clr) == 'object') ? clr.color : clr;

            color=color.replace(/#/,'');
            if(color.length==3) color=color.replace(/(.)/g,'$1$1');
            color=parseInt(color,16);
            var c = new Asc.asc_CColor();
            c.put_type( (typeof(clr) == 'object' && clr.effectId !== undefined)? Asc.c_oAscColor.COLOR_TYPE_SCHEME : Asc.c_oAscColor.COLOR_TYPE_SRGB);
            c.put_r(color>>16);
            c.put_g((color&0xff00)>>8);
            c.put_b(color&0xff);
            c.put_a(0xff);
            if (clr.effectId !== undefined)
                c.put_value(clr.effectId);
            return c;
        },

        colorValue2EffectId: function(clr){
            if (typeof(clr) == 'object' && clr.effectValue !== undefined && this.effectcolors) {
                for (var i = 0; i < this.effectcolors.length; i++) {
                    if (this.effectcolors[i].effectValue===clr.effectValue && clr.color.toUpperCase()===this.effectcolors[i].color.toUpperCase()) {
                        clr.effectId = this.effectcolors[i].effectId;
                        break;
                    }
                }
            }
            return clr;
        }
    }
})();

Common.Utils.Metric = _.extend( new(function() {
    var me = this;

    me.c_MetricUnits = {
        cm: 0,
        pt: 1,
        inch: 2
    };

    me.currentMetric = me.c_MetricUnits.pt;
    me.metricName = ['Cm', 'Pt', 'Inch'];
    me.defaultMetric = me.c_MetricUnits.cm;

    return {
        c_MetricUnits: me.c_MetricUnits,
        txtCm        : 'cm',
        txtPt        : 'pt',
        txtInch      : '\"',

        setCurrentMetric: function(value) {
            me.currentMetric = value;
        },

        getCurrentMetric: function() {
            return me.currentMetric;
        },

        getCurrentMetricName: function() {
            return this['txt' + me.metricName[me.currentMetric]];
        },

        getMetricName: function(unit) {
            return this['txt' + me.metricName[(unit !== undefined) ? unit : 0]];
        },
        
        setDefaultMetric: function(value) {
            me.defaultMetric = value;
        },

        getDefaultMetric: function() {
            return me.defaultMetric;
        },

        fnRecalcToMM: function(value) {
            // value in pt/cm/inch. need to convert to mm
            if (value!==null && value!==undefined) {
                switch (me.currentMetric) {
                    case me.c_MetricUnits.cm:
                        return value * 10;
                    case me.c_MetricUnits.pt:
                        return value * 25.4 / 72.0;
                    case me.c_MetricUnits.inch:
                        return value * 25.4;
                }
            }
            return value;
        },

        fnRecalcFromMM: function(value) {
            // value in mm. need to convert to pt/cm/inch
            switch (me.currentMetric) {
                case me.c_MetricUnits.cm:
                    return parseFloat((value/10.).toFixed(4));
                case me.c_MetricUnits.pt:
                    return parseFloat((value * 72.0 / 25.4).toFixed(3));
                case me.c_MetricUnits.inch:
                    return parseFloat((value / 25.4).toFixed(3));
            }
            return value;
        }
    }
})(), Common.Utils.Metric || {});

Common.Utils.RGBColor = function(colorString) {
    var r, g, b;

    if (colorString.charAt(0) == '#') {
        colorString = colorString.substr(1,6);
    }

    colorString = colorString.replace(/ /g,'');
    colorString = colorString.toLowerCase();

    var colorDefinitions = [
        {
            re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
//                    example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
            process: function (bits){
                return [
                    parseInt(bits[1]),
                    parseInt(bits[2]),
                    parseInt(bits[3])
                ];
            }
        },
        {
            re: /^hsb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
//                    example: ['hsb(123, 34, 100)'],
            process: function (bits){
                var rgb = {};
                var h = Math.round(bits[1]);
                var s = Math.round(bits[2] * 255 / 100);
                var v = Math.round(bits[3] * 255 / 100);
                if(s == 0) {
                    rgb.r = rgb.g = rgb.b = v;
                } else {
                    var t1 = v;
                    var t2 = (255 - s) * v / 255;
                    var t3 = (t1 - t2) * (h % 60) / 60;

                    if (h == 360) h = 0;
                    if (h < 60)         {rgb.r = t1;    rgb.b = t2;     rgb.g = t2 + t3}
                    else if (h < 120)   {rgb.g = t1;    rgb.b = t2;     rgb.r = t1 - t3}
                    else if (h < 180)   {rgb.g = t1;    rgb.r = t2;     rgb.b = t2 + t3}
                    else if (h < 240)   {rgb.b = t1;    rgb.r = t2;     rgb.g = t1 - t3}
                    else if (h < 300)   {rgb.b = t1;    rgb.g = t2;     rgb.r = t2 + t3}
                    else if (h < 360)   {rgb.r = t1;    rgb.g = t2;     rgb.b = t1 - t3}
                    else                {rgb.r = 0;     rgb.g = 0;      rgb.b = 0}
                }
                return [
                    Math.round(rgb.r),
                    Math.round(rgb.g),
                    Math.round(rgb.b)
                ];
            }
        },
        {
            re: /^(\w{2})(\w{2})(\w{2})$/,
//                    example: ['#00ff00', '336699'],
            process: function (bits){
                return [
                    parseInt(bits[1], 16),
                    parseInt(bits[2], 16),
                    parseInt(bits[3], 16)
                ];
            }
        },
        {
            re: /^(\w{1})(\w{1})(\w{1})$/,
//                    example: ['#fb0', 'f0f'],
            process: function (bits){
                return [
                    parseInt(bits[1] + bits[1], 16),
                    parseInt(bits[2] + bits[2], 16),
                    parseInt(bits[3] + bits[3], 16)
                ];
            }
        }
    ];

    for (var i = 0; i < colorDefinitions.length; i++) {
        var re = colorDefinitions[i].re;
        var processor = colorDefinitions[i].process;
        var bits = re.exec(colorString);
        if (bits) {
            var channels = processor(bits);
            r = channels[0];
            g = channels[1];
            b = channels[2];
        }
    }

    r = (r < 0 || isNaN(r)) ? 0 : ((r > 255) ? 255 : r);
    g = (g < 0 || isNaN(g)) ? 0 : ((g > 255) ? 255 : g);
    b = (b < 0 || isNaN(b)) ? 0 : ((b > 255) ? 255 : b);

    var isEqual = function(color){
        return ((r == color.r) && (g == color.g) && (b == color.b));
    };

    var toRGB = function() {
        return 'rgb(' + r + ', ' + g + ', ' + b + ')';
    };

    var toRGBA = function(alfa) {
        if (alfa===undefined) alfa = 1;
        return 'rgba(' + r + ', ' + g + ', ' + b + ', ' + alfa + ')';
    };

    var toHex = function() {
        var _r = r.toString(16);
        var _g = g.toString(16);
        var _b = b.toString(16);
        if (_r.length == 1) _r = '0' + _r;
        if (_g.length == 1) _g = '0' + _g;
        if (_b.length == 1) _b = '0' + _b;
        return '#' + _r + _g + _b;
    };

    var toHSB = function() {
        var hsb = {
            h: 0,
            s: 0,
            b: 0
        };

        var min = Math.min(r, g, b);
        var max = Math.max(r, g, b);
        var delta = max - min;
        hsb.b = max;
        hsb.s = max != 0 ? 255 * delta / max : 0;
        if (hsb.s != 0) {
            if (r == max) {
                hsb.h = 0 + (g - b) / delta;
            } else if (g == max) {
                hsb.h = 2 + (b - r) / delta;
            } else {
                hsb.h = 4 + (r - g) / delta;
            }
        } else {
            hsb.h = 0;
        }
        hsb.h *= 60;
        if (hsb.h < 0) {
            hsb.h += 360;
        }
        hsb.s *= 100 / 255;
        hsb.b *= 100 / 255;

        hsb.h = parseInt(hsb.h);
        hsb.s = parseInt(hsb.s);
        hsb.b = parseInt(hsb.b);

        return hsb;
    };

    return {
        r       : r,
        g       : g,
        b       : b,
        isEqual : isEqual,
        toRGB   : toRGB,
        toRGBA  : toRGBA,
        toHex   : toHex,
        toHSB   : toHSB
    }
};

Common.Utils.String = new (function() {
    return {
        format: function(format) {
            var args = _.toArray(arguments).slice(1);
            return format.replace(/\{(\d+)\}/g, function(s, i) {
                return args[i];
            });
        },

        htmlEncode: function(string) {
            return _.escape(string);
        },

        htmlDecode: function(string) {
            return _.unescape(string);
        },

        ellipsis: function(value, len, word) {
            if (value && value.length > len) {
                if (word) {
                    var vs = value.substr(0, len - 2),
                        index = Math.max(vs.lastIndexOf(' '), vs.lastIndexOf('.'), vs.lastIndexOf('!'), vs.lastIndexOf('?'));
                    if (index !== -1 && index >= (len - 15)) {
                        return vs.substr(0, index) + "...";
                    }
                }
                return value.substr(0, len - 3) + "...";
            }
            return value;
        },

        platformKey: function(string, template, hookFn) {
            if (_.isEmpty(template))
                template = ' ({0})';

            if (Common.Utils.isMac) {
                if (_.isFunction(hookFn)) {
                    string = hookFn.call(this, string);
                }
                return Common.Utils.String.format(template, string.replace(/\+(?=\S)/g, '').replace(/Ctrl|ctrl/g, '⌘').replace(/Alt|alt/g, '⌥').replace(/Shift|shift/g, '⇧'));
            }

            return Common.Utils.String.format(template, string);
        }
    }
})();

Common.Utils.isBrowserSupported = function() {
    return !((Common.Utils.ieVersion != 0 && Common.Utils.ieVersion < 10.0) ||
             (Common.Utils.safariVersion != 0 && Common.Utils.safariVersion < 5.0) ||
             (Common.Utils.firefoxVersion != 0 && Common.Utils.firefoxVersion < 4.0) ||
             (Common.Utils.chromeVersion != 0 && Common.Utils.chromeVersion < 7.0) ||
             (Common.Utils.operaVersion != 0 && Common.Utils.operaVersion < 10.5));
};

Common.Utils.showBrowserRestriction = function() {
    var editor = (window.DE ? 'Document' : window.SSE ? 'Spreadsheet' : window.PE ? 'Presentation' : 'that');
    var newDiv = document.createElement("div");
    newDiv.innerHTML = '<div class="app-error-panel">' +
                            '<div class="message-block">' +
                                '<div class="message-inner">' +
                                    '<div class="title">Your browser is not supported.</div>' +
                                    '<div class="text">Sorry, ' + editor + ' Editor is currently only supported in the latest versions of the Chrome, Firefox, Safari or Internet Explorer web browsers.</div>' +
                                '</div>' +
                            '</div>' +
                            '<div class="message-auxiliary"></div>' +
                        '</div>';

    document.body.appendChild(newDiv);

    $('#loading-mask').hide().remove();
    $('#viewport').hide().remove();
};

Common.Utils.applyCustomization = function(config, elmap) {
    for (var name in config) {
        var $el;
        if (!!elmap[name]) {
            $el = $(elmap[name]);

            if ($el.length) {
                var item = config[name];
                if (item === false || item.visible === false) {
                    $el.hide()
                } else {
                    if (!!item.text) {
                        $el.text(item.text);
                    }

                    if (item.visible === false) {
                        $el.hide();
                    }
                }
            }
        }
    }
};

Common.Utils.applyCustomizationPlugins = function(plugins) {
    if (!plugins || plugins.length<1) return;

    var _createXMLHTTPObject = function() {
        var xmlhttp;
        try {
            xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (E) {
                xmlhttp = false;
            }
        }
        if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
            xmlhttp = new XMLHttpRequest();
        }
        return xmlhttp;
    };

    var _getPluginCode = function(url) {
        if (!url) return '';
        try {
            var xhrObj = _createXMLHTTPObject();
            if (xhrObj && url) {
                xhrObj.open('GET', url, false);
                xhrObj.send('');
                if (xhrObj.status == 200)
                    eval(xhrObj.responseText);
            }
        }
        catch (e) {}
        return null;
    };

    plugins.forEach(function(url){
        if (url) _getPluginCode(url);
    });
};

Common.Utils.fillUserInfo = function(info, lang, defname) {
    var _user = info || {};
    !_user.id && (_user.id = ('uid-' + Date.now()));
    if (_.isEmpty(_user.name)) {
        _.isEmpty(_user.firstname) && _.isEmpty(_user.lastname) && (_user.firstname = defname);
        if (_.isEmpty(_user.firstname))
            _user.fullname = _user.lastname;
        else if (_.isEmpty(_user.lastname))
            _user.fullname = _user.firstname;
        else
            _user.fullname = /^ru/.test(lang) ? _user.lastname + ' ' + _user.firstname :  _user.firstname + ' ' + _user.lastname;
    } else
        _user.fullname = _user.name;
    return _user;
};


Common.Utils.createXhr = function () {
    var xmlhttp;
    try {
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
        try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (E) {
            xmlhttp = false;
        }
    }
    if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
        xmlhttp = new XMLHttpRequest();
    }

    return xmlhttp;
};

Common.Utils.getConfigJson = function (url) {
    if ( url ) {
        try {
            var xhrObj = Common.Utils.createXhr();
            if ( xhrObj ) {
                xhrObj.open('GET', url, false);
                xhrObj.send('');

                return JSON.parse(xhrObj.responseText);
            }
        } catch (e) {}
    }

    return null;
};

Common.Utils.getConfigJson = function (url) {
    if ( url ) {
        try {
            var xhrObj = Common.Utils.createXhr();
            if ( xhrObj ) {
                xhrObj.open('GET', url, false);
                xhrObj.send('');

                return JSON.parse(xhrObj.responseText);
            }
        } catch (e) {}
    }

    return null;
}

Common.Utils.asyncCall = function (callback, scope, args) {
    (new Promise(function (resolve, reject) {
        resolve();
    })).then(function () {
        callback.call(scope, args);
    });
};

// Extend javascript String type
String.prototype.strongMatch = function(regExp){
    if (regExp && regExp instanceof RegExp) {
        var arr = this.toString().match(regExp);
        return !!(arr && arr.length > 0 && arr[0].length == this.length);
    }

    return false;
};

Common.Utils.InternalSettings = new(function() {
    var settings = {};

    var _get = function(name) {
            return settings[name];
        },
        _set = function(name, value) {
            settings[name] = value;
        };

    return {
        get: _get,
        set: _set
    }
});

Common.Utils.InternalSettings.set('toolbar-height-tabs', 32);
Common.Utils.InternalSettings.set('toolbar-height-tabs-top-title', 28);
Common.Utils.InternalSettings.set('toolbar-height-controls', 67);
Common.Utils.InternalSettings.set('document-title-height', 28);

Common.Utils.InternalSettings.set('toolbar-height-compact', Common.Utils.InternalSettings.get('toolbar-height-tabs'));
Common.Utils.InternalSettings.set('toolbar-height-normal', Common.Utils.InternalSettings.get('toolbar-height-tabs') + Common.Utils.InternalSettings.get('toolbar-height-controls'));