Hide empty days/dates on mobile view

I figured out a "hacky" solution for this, but it involves modifying the module's files. I have not been able to create a successful theme override for this yet. Any ideas?

    // Render row and insert content in cell.
    // @see template_preprocess_calendar_view_day()
    $renderable_row = $this->view->rowPlugin->render($result);
    foreach ($this->view->calendars ?? [] as $t => $table) {
      foreach ($table['#rows'] as $r => $rows) {
        foreach (array_keys($rows['data']) as $timestamp) {
          if (in_array($timestamp, $timestamps)) {
            $today = new \DateTime();
            $today->setTimestamp($timestamp);
            $today->setTime(0, 0, 0);
            $interval = $start_day->diff($today);
            $values['instance'] = $interval->format('%a');
            $renderable_row['#values'] = $values;

            $cell = &$this->view->calendars[$t]['#rows'][$r]['data'][$timestamp];
            $cell['data']['#children'][$start] = $renderable_row;
			$cell['class'][] = 'hasevent';
          }
        }
      }
    }
  }

I added "$cell['class'][] = 'hasevent';", which adds a class of "hasevent" to the

I patched the preprocess for calendar_view_day, adding a check for empty children in the day, and adding a class to the template wrapper.

I'm a little tripped up on 'attributes' vs '#attributes'. Here's what I have:

    $variables['attributes'] = new \Drupal\Core\Template\Attribute();
    $variables['attributes']->addClass('calendar-view-day--empty');

This also works:

    $variables['#attributes']['class'][] = 'calendar-view-day--empty'

Seems like the render process will convert #attributes into an Attributes object if it's not already defined. Is this more a matter of style, or any benefits to doing it one way or the other?

I realized we may want to have the classes on the container, so I patched the preprocess for views_view_calendar.

The calendar style parses all the items into $view->calendar. So I had to loop through the items in there, check for empty #children and add the class.

Any thoughts on the class names?

How about "hasevent" and "noevent" as the class names?

Hi, was this feature added?

It was possible to acheive everything with a preprocess function but it is a nice addition to the module codebase anyway.

So it is fixed on the dev branch 2.1.x.

Could you please try and confirm that you can now hide empty cells with CSS as you wanted to?

Marking as fixed.

Please comment and/or reopen as appropriate.

Automatically closed - issue fixed for 2 weeks with no activity.