Search format

Such blocks contain a form with search string and a button for submitting data to the search result page.

Minimal requirements for this block to be operational:

1. Available tag <form>, query input string <input>, data submit button.
2. Available attribute for selector <form>.

      'attrs' => [
         '.landing-block-node-form' => [
            'name' => 'Search result page',
            'attribute' => 'action',
            'type' => 'url',
            'allowedTypes' => [
               'landing',
            ],
            'disableCustomURL' => true,
            'disallowType' => true,
            'disableBlocks' => true
         ]
      ]

3. Optionally, subtype and subtype_params can be added to the blocks description. In this case the attribute Search result page (see para. 2) will include the landing page when a block is added (for user convenience):

   'block' => [
      'name' => Loc::getMessage('LANDING_BLOCK_59_2-NAME'),
      'section' => array('sidebar', 'other'),
      'subtype' => 'search',
      'subtype_params' => [
         'type' => 'form',
         'resultPage' => 'result'
      ]
   ],

   Where result is ID for search results page template. When such page is found at the site, it is be added automatically.