The html drag sample only works for browser and sometimes on a phone browser with long press and drag but not with all the mobile/touch browsers.
HTML Drag and Drop, and external Clipboard pasting is using DragEvents.
Is there any sample code for TouchEvents? Touch Events - Level 2
That is correct – HTML drag-and-drop API is based on mouse events, not touch events. The questions is which mobile browsers support it.
HTML Drag and Drop API - Web APIs | MDN
"draganddrop" | Can I use... Support tables for HTML5, CSS3, etc
For example, I find that our HTML Drag and Drop sample, HTML Drag and Drop, and external Clipboard pasting, doesn’t work in Firefox on Android, but does work in Chrome on Android with the long press and drag that you mention.
But the level 2 Touch Events API that you mention is not standard. Note for example Safari: "TouchEvent" | Can I use... Support tables for HTML5, CSS3, etc
Or: "TouchType" | Can I use... Support tables for HTML5, CSS3, etc
Our jQuery Drag and Drop sample, HTML Drag and Drop, doesn’t seem to work in either Firefox or Chrome on Android. But maybe that’s just because it doesn’t use the latest jQuery library? I haven’t used jQuery in many years, so I don’t know about it.
So the answer to your question is “sorry, no, not for that scenario”.