html - html5 "required" attribute for mixed radio/text -


i'm designing form has, among others, following elements:

<div>     <div class="radio-list">         <label><input type="radio" name="ftp_directory" id="ftpdir_public_html" value="public_html"> <strong>public_html</strong> directory</label>         <label><input type="radio" name="ftp_directory" id="ftpdir_blank" value="."> <strong>root</strong> directory </label>         <label><input type="radio" id="ftpdir_custom" value=""> other directory (please specify)</label>     </div>     <input name="ftp_directory" class="form-control" type="text" disabled="disabled" aria-disabled="true"> </div>

i enable latter <input> text element when check 3rd radio (via jquery) , fine.

what want set required attribute in correct way vaildates if of first 2 radio button checked or 3rd radio checked , input has text.

note: know can js/jquery validation code i'd in pure html5.

as said, cannot radio buttons + text input. however, can achieve similar data lists , single text field:

<input type="text" name="ftp_directory" list="preselection" required> <datalist id="preselection">   <option>public_html</option>   <option value=".">current directory</option> </datalist>

logically, meets constraints. however, might not stylistically you're looking for.


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