Format Validation of Controls in a Widget

Describe the Problem We're creating an elementor addon which includes a custom widget. Our widget uses Elementor TEXT controls for a phone number, fax number, email address. We also use an Elementor URL control for a website url. I would like to do format validation on these controls and show a warning to the user if it doesn't match the format. For example, the phone number should only allow digits, spaces, hyphens, parentheses and x/X for extension. I can't find any elementor documentation of how to do this. There's only documentation of how to do this for form fields but that doesn't apply to controls Propose a Solution Implement function(s) within Base_Control class (and/or other control classes)of Elementor Core that allows controls to define explicit patterns (regex patterns) of what is an acceptable format. any widget that extends from Widget_Base can then validate its controls against the expected pattern to see if there's a valid format. …