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trumbowyg.preformatted.js (4081B)

      1 /* ===========================================================
      2  * trumbowyg.preformatted.js v1.0
      3  * Preformatted plugin for Trumbowyg
      4  * http://alex-d.github.com/Trumbowyg
      5  * ===========================================================
      6  * Author : Casella Edoardo (Civile)
      7  */
      8 
      9 
     10 (function ($) {
     11     'use strict';
     12 
     13     $.extend(true, $.trumbowyg, {
     14         langs: {
     15             // jshint camelcase:false
     16             en: {
     17                 preformatted: 'Code sample <pre>'
     18             },
     19             fr: {
     20                 preformatted: 'Exemple de code <pre>'
     21             },
     22             it: {
     23                 preformatted: 'Codice <pre>'
     24             },
     25             zh_cn: {
     26                 preformatted: '代码示例 <pre>'
     27             },
     28             ru: {
     29                 preformatted: 'Пример кода <pre>'
     30             },
     31             ja: {
     32                 preformatted: 'コードサンプル <pre>'
     33             },
     34             tr: {
     35                 preformatted: 'Kod örneği <pre>'
     36             }
     37         },
     38         // jshint camelcase:true
     39 
     40         plugins: {
     41             preformatted: {
     42                 init: function (trumbowyg) {
     43                     var btnDef = {
     44                         fn: function () {
     45                             trumbowyg.saveRange();
     46                             var text = trumbowyg.getRangeText();
     47                             if (text.replace(/\s/g, '') !== '') {
     48                                 try {
     49                                     var curtag = getSelectionParentElement().tagName.toLowerCase();
     50                                     if (curtag === 'code' || curtag === 'pre') {
     51                                         return unwrapCode();
     52                                     }
     53                                     else {
     54                                         trumbowyg.execCmd('insertHTML', '<pre><code>' + strip(text) + '</code></pre>');
     55                                     }
     56                                 } catch (e) {
     57                                 }
     58                             }
     59                         },
     60                         tag: 'pre'
     61                     };
     62 
     63                     trumbowyg.addBtnDef('preformatted', btnDef);
     64                 }
     65             }
     66         }
     67     });
     68 
     69     /*
     70      * GetSelectionParentElement
     71      */
     72     function getSelectionParentElement() {
     73         var parentEl = null,
     74             selection;
     75 
     76         if (window.getSelection) {
     77             selection = window.getSelection();
     78             if (selection.rangeCount) {
     79                 parentEl = selection.getRangeAt(0).commonAncestorContainer;
     80                 if (parentEl.nodeType !== 1) {
     81                     parentEl = parentEl.parentNode;
     82                 }
     83             }
     84         } else if ((selection = document.selection) && selection.type !== 'Control') {
     85             parentEl = selection.createRange().parentElement();
     86         }
     87 
     88         return parentEl;
     89     }
     90 
     91     /*
     92      * Strip
     93      * returns a text without HTML tags
     94      */
     95     function strip(html) {
     96         var tmp = document.createElement('DIV');
     97         tmp.innerHTML = html;
     98         return tmp.textContent || tmp.innerText || '';
     99     }
    100 
    101     /*
    102      * UnwrapCode
    103      * ADD/FIX: to improve, works but can be better
    104      * "paranoic" solution
    105      */
    106     function unwrapCode() {
    107         var container = null;
    108 
    109         if (document.selection) { //for IE
    110             container = document.selection.createRange().parentElement();
    111         } else {
    112             var select = window.getSelection();
    113             if (select.rangeCount > 0) {
    114                 container = select.getRangeAt(0).startContainer.parentNode;
    115             }
    116         }
    117 
    118         //'paranoic' unwrap
    119         var ispre = $(container).contents().closest('pre').length;
    120         var iscode = $(container).contents().closest('code').length;
    121 
    122         if (ispre && iscode) {
    123             $(container).contents().unwrap('code').unwrap('pre');
    124         } else if (ispre) {
    125             $(container).contents().unwrap('pre');
    126         } else if (iscode) {
    127             $(container).contents().unwrap('code');
    128         }
    129     }
    130 })(jQuery);