The stuff in this article is created by the CSS Working Group. The stuff you want would not be handled by them.

> Who needs ways to reliably trigger the display of the touch platform-native keyboard, to be notified if it is displayed and to move the input field in view so it is not obscured by the keyboard?

Sounds like you need window.visualViewport: https://developer.mozilla.org/en-US/docs/Web/API/VisualViewp...

> The mobile web contains two viewports, the layout viewport and the visual viewport. The layout viewport covers all the elements on a page and the visual viewport is what is actually visible on the screen. When the user pinch-zooms into the page, the visual viewport shrinks but the layout viewport is unchanged. User-interface features like the on-screen keyboard (OSK) can shrink the visual viewport without affecting the layout viewport.