I want to remove an whole article div from category article listing on a joomla page using plugin

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plugin

extension

Joomla

I have a category page which lists all articles belongs to that category in joomla.

I have made a custom content plugin, which is for setting a custom field while creating articles of any type, Now i can see/access in "OnContentPrepare" method the custom value which i saved during article creation.

Now i want my plugin to hide/remove article which have value 1 for custom field from frontend thats it.

But this shouldnt affect any backend values like publish, title, content e.t.c. Just "display:none" of CSS.

below is the code of my plugin:

defined ( '_JEXEC' ) or die ( 'Restricted access' );
class plgContentDtStatus extends JPlugin
{
protected $autoloadLanguage = true;
public function onContentPrepareForm($form, $data)
{
$app = JFactory::getApplication();
$option = $app->input->get('option');
switch($option) {
case 'com_content':
if ($app->isAdmin()) {
JForm::addFormPath(__DIR__ . '/forms');
//Show specific forms based on categories
$form->loadFile('content', false);
}
return true;
}

return true;
}

public function onContentPrepare($context, &$article, &$params, $page = 0)
{

if(isset($article->attribs) && !empty($article->attribs)){
$attr=json_decode($article->attribs);
/* After this line i can access the custom field value */
}

if(isset($attr->is_done) && $attr->is_done){

//-------------------------
$article->images=0;
$article->published=0;
$tmp=json_decode($params->__toString());
foreach($tmp as $key=>$val)
{
$params->set($key,0);
$article->text='';
}
/* Right now i am trying above code to hide articles not working for all templates. i want to place a class or inline css to hide whole div of article, or is there any way to skip the article and move to next one */
//-------------------------
}

return true;
}

}

Please suggest, Thanks in advance.

What I have tried:

i have placed my code what i have tried yet.