/*
 Insert Characters Plugin for Redactor

 Plugin to insert special character, for version 10+ of Redactor Text Editor (http://imperavi.com/redactor/)
 Usage:
 plugins : ['specialcharacters']
 Also requires font-awesome to be available (for icon button)
 Author - Ryan Hewitt - www.mesuva.com.au
 Released under MIT license
*/


if (!RedactorPlugins) var RedactorPlugins = {};

RedactorPlugins.specialcharacters = function()
{
    return {
        entities:  [
            ['&nbsp;',    '&#160;',  true, 'no-break space'],
            ['&amp;',     '&#38;',   true, 'ampersand'],
            ['&quot;',    '&#34;',   true, 'quotation mark'],
            // finance
            ['&cent;',    '&#162;',  true, 'cent sign'],
            ['&euro;',    '&#8364;', true, 'euro sign'],
            ['&pound;',   '&#163;',  true, 'pound sign'],
            ['&yen;',     '&#165;',  true, 'yen sign'],
            // signs
            ['&copy;',    '&#169;',  true, 'copyright sign'],
            ['&reg;',     '&#174;',  true, 'registered sign'],
            ['&trade;',   '&#8482;', true, 'trade mark sign'],
            ['&permil;',  '&#8240;', true, 'per mille sign'],
            ['&micro;',   '&#181;',  true, 'micro sign'],
            ['&middot;',  '&#183;',  true, 'middle dot'],
            ['&bull;',    '&#8226;', true, 'bullet'],
            ['&hellip;',  '&#8230;', true, 'three dot leader'],
            ['&prime;',   '&#8242;', true, 'minutes / feet'],
            ['&Prime;',   '&#8243;', true, 'seconds / inches'],
            ['&sect;',    '&#167;',  true, 'section sign'],
            ['&para;',    '&#182;',  true, 'paragraph sign'],
            ['&szlig;',   '&#223;',  true, 'sharp s / ess-zed'],
            // quotations
            ['&lsaquo;',  '&#8249;', true, 'single left-pointing angle quotation mark'],
            ['&rsaquo;',  '&#8250;', true, 'single right-pointing angle quotation mark'],
            ['&laquo;',   '&#171;',  true, 'left pointing guillemet'],
            ['&raquo;',   '&#187;',  true, 'right pointing guillemet'],
            ['&lsquo;',   '&#8216;', true, 'left single quotation mark'],
            ['&rsquo;',   '&#8217;', true, 'right single quotation mark'],
            ['&ldquo;',   '&#8220;', true, 'left double quotation mark'],
            ['&rdquo;',   '&#8221;', true, 'right double quotation mark'],
            ['&sbquo;',   '&#8218;', true, 'single low-9 quotation mark'],
            ['&bdquo;',   '&#8222;', true, 'double low-9 quotation mark'],
            ['&lt;',      '&#60;',   true, 'less-than sign'],
            ['&gt;',      '&#62;',   true, 'greater-than sign'],
            ['&le;',      '&#8804;', true, 'less-than or equal to'],
            ['&ge;',      '&#8805;', true, 'greater-than or equal to'],
            ['&ndash;',   '&#8211;', true, 'en dash'],
            ['&mdash;',   '&#8212;', true, 'em dash'],
            ['&macr;',    '&#175;',  true, 'macron'],
            ['&oline;',   '&#8254;', true, 'overline'],
            ['&curren;',  '&#164;',  true, 'currency sign'],
            ['&brvbar;',  '&#166;',  true, 'broken bar'],
            ['&uml;',     '&#168;',  true, 'diaeresis'],
            ['&iexcl;',   '&#161;',  true, 'inverted exclamation mark'],
            ['&iquest;',  '&#191;',  true, 'turned question mark'],
            ['&circ;',    '&#710;',  true, 'circumflex accent'],
            ['&tilde;',   '&#732;',  true, 'small tilde'],
            ['&deg;',     '&#176;',  true, 'degree sign'],
            ['&minus;',   '&#8722;', true, 'minus sign'],
            ['&plusmn;',  '&#177;',  true, 'plus-minus sign'],
            ['&divide;',  '&#247;',  true, 'division sign'],
            ['&frasl;',   '&#8260;', true, 'fraction slash'],
            ['&times;',   '&#215;',  true, 'multiplication sign'],
            ['&sup1;',    '&#185;',  true, 'superscript one'],
            ['&sup2;',    '&#178;',  true, 'superscript two'],
            ['&sup3;',    '&#179;',  true, 'superscript three'],
            ['&frac14;',  '&#188;',  true, 'fraction one quarter'],
            ['&frac12;',  '&#189;',  true, 'fraction one half'],
            ['&frac34;',  '&#190;',  true, 'fraction three quarters'],
            // math / logical
            ['&fnof;',    '&#402;',  true, 'function / florin'],
            ['&int;',     '&#8747;', true, 'integral'],
            ['&sum;',     '&#8721;', true, 'n-ary sumation'],
            ['&infin;',   '&#8734;', true, 'infinity'],
            ['&radic;',   '&#8730;', true, 'square root'],
            ['&sim;',     '&#8764;', false,'similar to'],
            ['&cong;',    '&#8773;', false,'approximately equal to'],
            ['&asymp;',   '&#8776;', true, 'almost equal to'],
            ['&ne;',      '&#8800;', true, 'not equal to'],
            ['&equiv;',   '&#8801;', true, 'identical to'],
            ['&isin;',    '&#8712;', false,'element of'],
            ['&notin;',   '&#8713;', false,'not an element of'],
            ['&ni;',      '&#8715;', false,'contains as member'],
            ['&prod;',    '&#8719;', true, 'n-ary product'],
            ['&and;',     '&#8743;', false,'logical and'],
            ['&or;',      '&#8744;', false,'logical or'],
            ['&not;',     '&#172;',  true, 'not sign'],
            ['&cap;',     '&#8745;', true, 'intersection'],
            ['&cup;',     '&#8746;', false,'union'],
            ['&part;',    '&#8706;', true, 'partial differential'],
            ['&forall;',  '&#8704;', false,'for all'],
            ['&exist;',   '&#8707;', false,'there exists'],
            ['&empty;',   '&#8709;', false,'diameter'],
            ['&nabla;',   '&#8711;', false,'backward difference'],
            ['&lowast;',  '&#8727;', false,'asterisk operator'],
            ['&prop;',    '&#8733;', false,'proportional to'],
            ['&ang;',     '&#8736;', false,'angle'],
            // undefined
            ['&acute;',   '&#180;',  true, 'acute accent'],
            ['&cedil;',   '&#184;',  true, 'cedilla'],
            ['&ordf;',    '&#170;',  true, 'feminine ordinal indicator'],
            ['&ordm;',    '&#186;',  true, 'masculine ordinal indicator'],
            ['&dagger;',  '&#8224;', true, 'dagger'],
            ['&Dagger;',  '&#8225;', true, 'double dagger'],
            // alphabetical special chars
            ['&Agrave;',  '&#192;',  true, 'A - grave'],
            ['&Aacute;',  '&#193;',  true, 'A - acute'],
            ['&Acirc;',   '&#194;',  true, 'A - circumflex'],
            ['&Atilde;',  '&#195;',  true, 'A - tilde'],
            ['&Auml;',    '&#196;',  true, 'A - diaeresis'],
            ['&Aring;',   '&#197;',  true, 'A - ring above'],
            ['&AElig;',   '&#198;',  true, 'ligature AE'],
            ['&Ccedil;',  '&#199;',  true, 'C - cedilla'],
            ['&Egrave;',  '&#200;',  true, 'E - grave'],
            ['&Eacute;',  '&#201;',  true, 'E - acute'],
            ['&Ecirc;',   '&#202;',  true, 'E - circumflex'],
            ['&Euml;',    '&#203;',  true, 'E - diaeresis'],
            ['&Igrave;',  '&#204;',  true, 'I - grave'],
            ['&Iacute;',  '&#205;',  true, 'I - acute'],
            ['&Icirc;',   '&#206;',  true, 'I - circumflex'],
            ['&Iuml;',    '&#207;',  true, 'I - diaeresis'],
            ['&ETH;',     '&#208;',  true, 'ETH'],
            ['&Ntilde;',  '&#209;',  true, 'N - tilde'],
            ['&Ograve;',  '&#210;',  true, 'O - grave'],
            ['&Oacute;',  '&#211;',  true, 'O - acute'],
            ['&Ocirc;',   '&#212;',  true, 'O - circumflex'],
            ['&Otilde;',  '&#213;',  true, 'O - tilde'],
            ['&Ouml;',    '&#214;',  true, 'O - diaeresis'],
            ['&Oslash;',  '&#216;',  true, 'O - slash'],
            ['&OElig;',   '&#338;',  true, 'ligature OE'],
            ['&Scaron;',  '&#352;',  true, 'S - caron'],
            ['&Ugrave;',  '&#217;',  true, 'U - grave'],
            ['&Uacute;',  '&#218;',  true, 'U - acute'],
            ['&Ucirc;',   '&#219;',  true, 'U - circumflex'],
            ['&Uuml;',    '&#220;',  true, 'U - diaeresis'],
            ['&Yacute;',  '&#221;',  true, 'Y - acute'],
            ['&Yuml;',    '&#376;',  true, 'Y - diaeresis'],
            ['&THORN;',   '&#222;',  true, 'THORN'],
            ['&agrave;',  '&#224;',  true, 'a - grave'],
            ['&aacute;',  '&#225;',  true, 'a - acute'],
            ['&acirc;',   '&#226;',  true, 'a - circumflex'],
            ['&atilde;',  '&#227;',  true, 'a - tilde'],
            ['&auml;',    '&#228;',  true, 'a - diaeresis'],
            ['&aring;',   '&#229;',  true, 'a - ring above'],
            ['&aelig;',   '&#230;',  true, 'ligature ae'],
            ['&ccedil;',  '&#231;',  true, 'c - cedilla'],
            ['&egrave;',  '&#232;',  true, 'e - grave'],
            ['&eacute;',  '&#233;',  true, 'e - acute'],
            ['&ecirc;',   '&#234;',  true, 'e - circumflex'],
            ['&euml;',    '&#235;',  true, 'e - diaeresis'],
            ['&igrave;',  '&#236;',  true, 'i - grave'],
            ['&iacute;',  '&#237;',  true, 'i - acute'],
            ['&icirc;',   '&#238;',  true, 'i - circumflex'],
            ['&iuml;',    '&#239;',  true, 'i - diaeresis'],
            ['&eth;',     '&#240;',  true, 'eth'],
            ['&ntilde;',  '&#241;',  true, 'n - tilde'],
            ['&ograve;',  '&#242;',  true, 'o - grave'],
            ['&oacute;',  '&#243;',  true, 'o - acute'],
            ['&ocirc;',   '&#244;',  true, 'o - circumflex'],
            ['&otilde;',  '&#245;',  true, 'o - tilde'],
            ['&ouml;',    '&#246;',  true, 'o - diaeresis'],
            ['&oslash;',  '&#248;',  true, 'o slash'],
            ['&oelig;',   '&#339;',  true, 'ligature oe'],
            ['&scaron;',  '&#353;',  true, 's - caron'],
            ['&ugrave;',  '&#249;',  true, 'u - grave'],
            ['&uacute;',  '&#250;',  true, 'u - acute'],
            ['&ucirc;',   '&#251;',  true, 'u - circumflex'],
            ['&uuml;',    '&#252;',  true, 'u - diaeresis'],
            ['&yacute;',  '&#253;',  true, 'y - acute'],
            ['&thorn;',   '&#254;',  true, 'thorn'],
            ['&yuml;',    '&#255;',  true, 'y - diaeresis'],
            ['&Alpha;',   '&#913;',  true, 'Alpha'],
            ['&Beta;',    '&#914;',  true, 'Beta'],
            ['&Gamma;',   '&#915;',  true, 'Gamma'],
            ['&Delta;',   '&#916;',  true, 'Delta'],
            ['&Epsilon;', '&#917;',  true, 'Epsilon'],
            ['&Zeta;',    '&#918;',  true, 'Zeta'],
            ['&Eta;',     '&#919;',  true, 'Eta'],
            ['&Theta;',   '&#920;',  true, 'Theta'],
            ['&Iota;',    '&#921;',  true, 'Iota'],
            ['&Kappa;',   '&#922;',  true, 'Kappa'],
            ['&Lambda;',  '&#923;',  true, 'Lambda'],
            ['&Mu;',      '&#924;',  true, 'Mu'],
            ['&Nu;',      '&#925;',  true, 'Nu'],
            ['&Xi;',      '&#926;',  true, 'Xi'],
            ['&Omicron;', '&#927;',  true, 'Omicron'],
            ['&Pi;',      '&#928;',  true, 'Pi'],
            ['&Rho;',     '&#929;',  true, 'Rho'],
            ['&Sigma;',   '&#931;',  true, 'Sigma'],
            ['&Tau;',     '&#932;',  true, 'Tau'],
            ['&Upsilon;', '&#933;',  true, 'Upsilon'],
            ['&Phi;',     '&#934;',  true, 'Phi'],
            ['&Chi;',     '&#935;',  true, 'Chi'],
            ['&Psi;',     '&#936;',  true, 'Psi'],
            ['&Omega;',   '&#937;',  true, 'Omega'],
            ['&alpha;',   '&#945;',  true, 'alpha'],
            ['&beta;',    '&#946;',  true, 'beta'],
            ['&gamma;',   '&#947;',  true, 'gamma'],
            ['&delta;',   '&#948;',  true, 'delta'],
            ['&epsilon;', '&#949;',  true, 'epsilon'],
            ['&zeta;',    '&#950;',  true, 'zeta'],
            ['&eta;',     '&#951;',  true, 'eta'],
            ['&theta;',   '&#952;',  true, 'theta'],
            ['&iota;',    '&#953;',  true, 'iota'],
            ['&kappa;',   '&#954;',  true, 'kappa'],
            ['&lambda;',  '&#955;',  true, 'lambda'],
            ['&mu;',      '&#956;',  true, 'mu'],
            ['&nu;',      '&#957;',  true, 'nu'],
            ['&xi;',      '&#958;',  true, 'xi'],
            ['&omicron;', '&#959;',  true, 'omicron'],
            ['&pi;',      '&#960;',  true, 'pi'],
            ['&rho;',     '&#961;',  true, 'rho'],
            ['&sigmaf;',  '&#962;',  true, 'final sigma'],
            ['&sigma;',   '&#963;',  true, 'sigma'],
            ['&tau;',     '&#964;',  true, 'tau'],
            ['&upsilon;', '&#965;',  true, 'upsilon'],
            ['&phi;',     '&#966;',  true, 'phi'],
            ['&chi;',     '&#967;',  true, 'chi'],
            ['&psi;',     '&#968;',  true, 'psi'],
            ['&omega;',   '&#969;',  true, 'omega'],
            // symbols
            ['&alefsym;', '&#8501;', false,'alef symbol'],
            ['&piv;',     '&#982;',  false,'pi symbol'],
            ['&real;',    '&#8476;', false,'real part symbol'],
            ['&thetasym;','&#977;',  false,'theta symbol'],
            ['&upsih;',   '&#978;',  false,'upsilon - hook symbol'],
            ['&weierp;',  '&#8472;', false,'Weierstrass p'],
            ['&image;',   '&#8465;', false,'imaginary part'],
            // arrows
            ['&larr;',    '&#8592;', true, 'leftwards arrow'],
            ['&uarr;',    '&#8593;', true, 'upwards arrow'],
            ['&rarr;',    '&#8594;', true, 'rightwards arrow'],
            ['&darr;',    '&#8595;', true, 'downwards arrow'],
            ['&harr;',    '&#8596;', true, 'left right arrow'],
            ['&crarr;',   '&#8629;', false,'carriage return'],
            ['&lArr;',    '&#8656;', false,'leftwards double arrow'],
            ['&uArr;',    '&#8657;', false,'upwards double arrow'],
            ['&rArr;',    '&#8658;', false,'rightwards double arrow'],
            ['&dArr;',    '&#8659;', false,'downwards double arrow'],
            ['&hArr;',    '&#8660;', false,'left right double arrow'],
            ['&there4;',  '&#8756;', false,'therefore'],
            ['&sub;',     '&#8834;', false,'subset of'],
            ['&sup;',     '&#8835;', false,'superset of'],
            ['&nsub;',    '&#8836;', false,'not a subset of'],
            ['&sube;',    '&#8838;', false,'subset of or equal to'],
            ['&supe;',    '&#8839;', false,'superset of or equal to'],
            ['&oplus;',   '&#8853;', false,'circled plus'],
            ['&otimes;',  '&#8855;', false,'circled times'],
            ['&perp;',    '&#8869;', false,'perpendicular'],
            ['&sdot;',    '&#8901;', false,'dot operator'],
            ['&lceil;',   '&#8968;', false,'left ceiling'],
            ['&rceil;',   '&#8969;', false,'right ceiling'],
            ['&lfloor;',  '&#8970;', false,'left floor'],
            ['&rfloor;',  '&#8971;', false,'right floor'],
            ['&lang;',    '&#9001;', false,'left-pointing angle bracket'],
            ['&rang;',    '&#9002;', false,'right-pointing angle bracket'],
            ['&loz;',     '&#9674;', true,'lozenge'],
            ['&spades;',  '&#9824;', false,'black spade suit'],
            ['&clubs;',   '&#9827;', true, 'black club suit'],
            ['&hearts;',  '&#9829;', true, 'black heart suit'],
            ['&diams;',   '&#9830;', true, 'black diamond suit'],
            ['&ensp;',    '&#8194;', false,'en space'],
            ['&emsp;',    '&#8195;', false,'em space'],
            ['&thinsp;',  '&#8201;', false,'thin space'],
            ['&zwnj;',    '&#8204;', false,'zero width non-joiner'],
            ['&zwj;',     '&#8205;', false,'zero width joiner'],
            ['&lrm;',     '&#8206;', false,'left-to-right mark'],
            ['&rlm;',     '&#8207;', false,'right-to-left mark'],
            ['&shy;',     '&#173;',  false,'soft hyphen']
        ]
        ,
        init: function() {
            var button = this.button.addAfter('horizontalrule', 'special-character-button', this.lang.get('insert_character'));
            this.button.setAwesome('special-character-button', 'fa-copyright');
            this.button.addCallback(button, this.specialcharacters.show);
        },
        getTemplate: function()
        {
            var output =  String()
                + '<section id="redactor-modal-advanced">';

            for (i = 0; i < this.specialcharacters.entities.length; i++) {
                if (this.specialcharacters.entities[i][2]) {
                    output +=  '<a class="re-icon-select" href="#" title="'+ this.specialcharacters.entities[i][3] +'">' + this.specialcharacters.entities[i][1] + '</a> ';
                }
            }

            output += '</section><style>.re-icon-select {font-family: \'Helvetica Neue\', Helvetica, Arial, sans-serif !important; color: black; text-decoration: none; font-size: 1.4em;  text-align: center; border: 1px solid #EEE; display: inline-block; width: 1em; margin-bottom: 0.2em; } .re-icon-select:hover {color: white; background-color: black}</style>';
            return output;
        },
        show: function()
        {
            this.modal.addTemplate('specialcharacters', this.specialcharacters.getTemplate());
            this.modal.load('specialcharacters', this.lang.get('insert_character'), 500);
            this.modal.createCancelButton();
            this.selection.save();
            this.modal.show();

            var insertfunction = this.specialcharacters.insert;

            $('.re-icon-select').on('click', function() {
                $(this).addClass('re-icon-selected');
                insertfunction();
                return false;
            });

        },
        insert: function()
        {
            var html = $('.re-icon-selected').html();
            this.modal.close();
            this.selection.restore();
            this.insert.text(html);
            this.code.sync();
            this.buffer.set();
        }
    };
};