the method is called when an item is moved into a possible drop landing during dnd

HTMLElement $dragIn(HTMLElement source,HTMLElement target,Event ev);
sourceHTMLElementa DOM element on which a dnd action started
targetHTMLElementa DOM element of a possible drop landing
evEventa native HTML event
HTMLElementa DOM element which will be saved as a drop target (to ignore a drop landing, return a null value)

Related samples


The method isn't purposed for direct call! It is an extension point.

You can override it with your own logic, but check drag-n-drop related events first, as they provide a much more convenient way for drag-n-drop handling.

See also
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