gosora/pubnot/trumbowyg/plugins/preformatted/trumbowyg.preformatted.js

124 lines
3.9 KiB
JavaScript

/* ===========================================================
* trumbowyg.preformatted.js v1.0
* Preformatted plugin for Trumbowyg
* http://alex-d.github.com/Trumbowyg
* ===========================================================
* Author : Casella Edoardo (Civile)
*/
(function ($) {
'use strict';
$.extend(true, $.trumbowyg, {
langs: {
// jshint camelcase:false
en: {
preformatted: 'Code sample <pre>'
},
fr: {
preformatted: 'Exemple de code'
},
it: {
preformatted: 'Codice <pre>'
},
zh_cn: {
preformatted: '代码示例 <pre>'
},
ru: {
preformatted: 'Пример кода <pre>'
},
ja: {
preformatted: 'コードサンプル <pre>'
}
},
// jshint camelcase:true
plugins: {
preformatted: {
init: function (trumbowyg) {
var btnDef = {
fn: function () {
trumbowyg.saveRange();
var text = trumbowyg.getRangeText();
if (text.replace(/\s/g, '') !== '') {
try {
var curtag = getSelectionParentElement().tagName.toLowerCase();
if (curtag === 'code' || curtag === 'pre') {
return unwrapCode();
}
else {
trumbowyg.execCmd('insertHTML', '<pre><code>' + strip(text) + '</code></pre>');
}
} catch (e) {
}
}
},
tag: 'pre'
};
trumbowyg.addBtnDef('preformatted', btnDef);
}
}
}
});
/*
* GetSelectionParentElement
*/
function getSelectionParentElement() {
var parentEl = null,
selection;
if (window.getSelection) {
selection = window.getSelection();
if (selection.rangeCount) {
parentEl = selection.getRangeAt(0).commonAncestorContainer;
if (parentEl.nodeType !== 1) {
parentEl = parentEl.parentNode;
}
}
} else if ((selection = document.selection) && selection.type !== 'Control') {
parentEl = selection.createRange().parentElement();
}
return parentEl;
}
/*
* Strip
* returns a text without HTML tags
*/
function strip(html) {
var tmp = document.createElement('DIV');
tmp.innerHTML = html;
return tmp.textContent || tmp.innerText || '';
}
/*
* UnwrapCode
* ADD/FIX: to improve, works but can be better
* "paranoic" solution
*/
function unwrapCode() {
var container = null;
if (document.selection) { //for IE
container = document.selection.createRange().parentElement();
} else {
var select = window.getSelection();
if (select.rangeCount > 0) {
container = select.getRangeAt(0).startContainer.parentNode;
}
}
//'paranoic' unwrap
var ispre = $(container).contents().closest('pre').length;
var iscode = $(container).contents().closest('code').length;
if (ispre && iscode) {
$(container).contents().unwrap('code').unwrap('pre');
} else if (ispre) {
$(container).contents().unwrap('pre');
} else if (iscode) {
$(container).contents().unwrap('code');
}
}
})(jQuery);