iflrandevu/assets/ext/trumbowyg/plugins/cleanpaste/trumbowyg.cleanpaste.js
2020-03-11 10:24:25 +01:00

112 lines
3.6 KiB
JavaScript

/* ===========================================================
* trumbowyg.cleanpaste.js v1.0
* Font Clean paste plugin for Trumbowyg
* http://alex-d.github.com/Trumbowyg
* ===========================================================
* Authors : Eric Radin
* Todd Graham (slackwalker)
*
* This plugin will perform a "cleaning" on any paste, in particular
* it will clean pasted content of microsoft word document tags and classes.
*/
(function ($) {
'use strict';
function checkValidTags(snippet) {
var theString = snippet;
// Replace uppercase element names with lowercase
theString = theString.replace(/<[^> ]*/g, function (match) {
return match.toLowerCase();
});
// Replace uppercase attribute names with lowercase
theString = theString.replace(/<[^>]*>/g, function (match) {
match = match.replace(/ [^=]+=/g, function (match2) {
return match2.toLowerCase();
});
return match;
});
// Put quotes around unquoted attributes
theString = theString.replace(/<[^>]*>/g, function (match) {
match = match.replace(/( [^=]+=)([^"][^ >]*)/g, '$1\"$2\"');
return match;
});
return theString;
}
function cleanIt(html) {
// first make sure all tags and attributes are made valid
html = checkValidTags(html);
// Replace opening bold tags with strong
html = html.replace(/<b(\s+|>)/g, '<strong$1');
// Replace closing bold tags with closing strong
html = html.replace(/<\/b(\s+|>)/g, '</strong$1');
// Replace italic tags with em
html = html.replace(/<i(\s+|>)/g, '<em$1');
// Replace closing italic tags with closing em
html = html.replace(/<\/i(\s+|>)/g, '</em$1');
// strip out comments -cgCraft
html = html.replace(/<!(?:--[\s\S]*?--\s*)?>\s*/g, '');
// strip out &nbsp; -cgCraft
html = html.replace(/&nbsp;/gi, ' ');
// strip out extra spaces -cgCraft
html = html.replace(/ <\//gi, '</');
while (html.indexOf(' ') !== -1) {
html = html.split(' ').join(' ');
}
// strip &nbsp; -cgCraft
html = html.replace(/^\s*|\s*$/g, '');
// Strip out unaccepted attributes
html = html.replace(/<[^>]*>/g, function (match) {
match = match.replace(/ ([^=]+)="[^"]*"/g, function (match2, attributeName) {
if (['alt', 'href', 'src', 'title'].indexOf(attributeName) !== -1) {
return match2;
}
return '';
});
return match;
});
// Final cleanout for MS Word crud
html = html.replace(/<\?xml[^>]*>/g, '');
html = html.replace(/<[^ >]+:[^>]*>/g, '');
html = html.replace(/<\/[^ >]+:[^>]*>/g, '');
// remove unwanted tags
html = html.replace(/<(div|span|style|meta|link).*?>/gi, '');
return html;
}
// clean editor
// this will clean the inserted contents
// it does a compare, before and after paste to determine the
// pasted contents
$.extend(true, $.trumbowyg, {
plugins: {
cleanPaste: {
init: function (trumbowyg) {
trumbowyg.pasteHandlers.push(function () {
try {
trumbowyg.$ed.html(cleanIt(trumbowyg.$ed.html()));
} catch (c) {
}
});
}
}
}
});
})(jQuery);