Today i want to show you how to increase number of features in default prestashop rich editor on product edit page. With this tutorial you will be able to use extended TinyMCE options, and also use javascripts in the code. By default, rich editor is simple and doesn't allow to use extended html markups, you can't use also <script> tag and other html language commands like <style> etc.

Default prestashop rich editor on product edit page

Extended rich editor which accepts scripts, styles and other html tags (all of them!)

Modification of admin theme

open ADMIN_DIR/themes/default/template/controllers/product/helpers/form.tpl file. This is file where you can find tinyMCE editor setup funciton. We need to extend it. 

by default, main tinyMCE setup function looks like:

tinySetup({ 
editor_selector :"autoload_rte", 
setup : function(ed) { 
...

change it to (add highlighted lines)

tinySetup({
editor_selector :"autoload_rte", 
theme_advanced_buttons1 : "save,newdocument,bold,italic,underline,strikethrough,justifyleft,justifycenter,justifyright,justifyfull,styleselect,formatselect, fontselect,fontsizeselect", 
theme_advanced_buttons2 : "cut,copy,paste,pastetext,pasteword,search,replace,bullist,numlist,outdent,indent,blockquote,undo,redo,link,unlink,anchor,image,cleanup,help,codemagic,insertdate,inserttime,preview,forecolor,backcolor",
theme_advanced_buttons3 : "code,tablecontrols,hr,removeformat,visualaid,sub,sup,charmap,emotions,iespell,media,advhr,print,ltr,rtl,fullscreen",
theme_advanced_buttons4 : "styleprops,cite,abbr,acronym,del,ins,attribs,visualchars,nonbreaking,template,pagebreak,restoredraft,visualblocks",
theme_advanced_toolbar_location : "top", 
theme_advanced_toolbar_align : "left", 
theme_advanced_statusbar_location : "bottom",
theme_advanced_resizing : false, 
extended_valid_elements: 'pre[*],script[*],style[*]', 
valid_children: "+body[style|script],pre[script|div|p|br|span|img|style|h1|h2|h3|h4|h5],*[*]",
valid_elements : '*[*]', 
force_p_newlines : false, 
cleanup: false, 
forced_root_block : false, 
force_br_newlines : true,   
setup: function(ed) { 
...

Validate.php file change

Now it's time to modification of the Validate class, in this case you have to open /classes/Validate.php file and comment out lines mentioned below (with // comment method). If you're using prestashop 1.5.5 or higher.

//if (preg_match('/<[ \t\n]*script/ims', $html) || preg_match('/('.$events.')[ \t\n]*=/ims', $html) || preg_match('/.*script\:/ims', $html))
//return false;

Save changes. Now you can use extended tinyMCE editor and you can use all available html + js + css markups, only your imagination is the limit :)

If you're using older PrestaShop version (below the 1.5.5) please change this function:

	public static function isCleanHtml($html)
	{
		$events = 'onmousedown|onmousemove|onmmouseup|onmouseover|onmouseout|onload|onunload|onfocus|onblur|onchange';
		$events .= '|onsubmit|ondblclick|onclick|onkeydown|onkeyup|onkeypress|onmouseenter|onmouseleave|onerror|onselect|onreset|onabort|ondragdrop|onresize|onactivate|onafterprint|onmoveend';
		$events .= '|onafterupdate|onbeforeactivate|onbeforecopy|onbeforecut|onbeforedeactivate|onbeforeeditfocus|onbeforepaste|onbeforeprint|onbeforeunload|onbeforeupdate|onmove';
		$events .= '|onbounce|oncellchange|oncontextmenu|oncontrolselect|oncopy|oncut|ondataavailable|ondatasetchanged|ondatasetcomplete|ondeactivate|ondrag|ondragend|ondragenter|onmousewheel';
		$events .= '|ondragleave|ondragover|ondragstart|ondrop|onerrorupdate|onfilterchange|onfinish|onfocusin|onfocusout|onhashchange|onhelp|oninput|onlosecapture|onmessage|onmouseup|onmovestart';
		$events .= '|onoffline|ononline|onpaste|onpropertychange|onreadystatechange|onresizeend|onresizestart|onrowenter|onrowexit|onrowsdelete|onrowsinserted|onscroll|onsearch|onselectionchange';
		$events .= '|onselectstart|onstart|onstop';
		return (!preg_match('/<[ \t\n]*script/ims', $html) && !preg_match('/('.$events.')[ \t\n]*=/ims', $html) && !preg_match('/.*script\:/ims', $html));
	}

to this one:

	public static function isCleanHtml($html){
/*
		$events = 'onmousedown|onmousemove|onmmouseup|onmouseover|onmouseout|onload|onunload|onfocus|onblur|onchange';
		$events .= '|onsubmit|ondblclick|onclick|onkeydown|onkeyup|onkeypress|onmouseenter|onmouseleave|onerror|onselect|onreset|onabort|ondragdrop|onresize|onactivate|onafterprint|onmoveend';
		$events .= '|onafterupdate|onbeforeactivate|onbeforecopy|onbeforecut|onbeforedeactivate|onbeforeeditfocus|onbeforepaste|onbeforeprint|onbeforeunload|onbeforeupdate|onmove';
		$events .= '|onbounce|oncellchange|oncontextmenu|oncontrolselect|oncopy|oncut|ondataavailable|ondatasetchanged|ondatasetcomplete|ondeactivate|ondrag|ondragend|ondragenter|onmousewheel';
		$events .= '|ondragleave|ondragover|ondragstart|ondrop|onerrorupdate|onfilterchange|onfinish|onfocusin|onfocusout|onhashchange|onhelp|oninput|onlosecapture|onmessage|onmouseup|onmovestart';
		$events .= '|onoffline|ononline|onpaste|onpropertychange|onreadystatechange|onresizeend|onresizestart|onrowenter|onrowexit|onrowsdelete|onrowsinserted|onscroll|onsearch|onselectionchange';
		$events .= '|onselectstart|onstart|onstop';
		return (!preg_match('/<[ \t\n]*script/ims', $html) && !preg_match('/('.$events.')[ \t\n]*=/ims', $html) && !preg_match('/.*script\:/ims', $html));
*/
return $html;
	}

version 1.5.6+ has got additional param: $allow_iframe = false in function! don't forget about it!

public static function isCleanHtml($html, $allow_iframe = false)

 so the final function:

public static function isCleanHtml($html, $allow_iframe = false){
    return true;
}