Files can be dragged out of the window through dnd.prepareDrag. Independent of paths.
OptionaldragWhy dragOut is false; its presence always means dragOut is false.
How the window hosts its WebView: visual for the main and popup windows, standard for a DUI or CUI panel.
The page receives standard HTML5 drag events; false means the window has no drag-drop support at all.
Real filesystem paths are obtainable through dnd.getPathsAsync and the dnd:* events. Not fixed for the window's lifetime: a navigation or Chromium re-registering its own drop target can withdraw it, announced by dnd:capabilitiesChanged.
OptionalpathsWhy paths is false; its presence always means paths is false.
Payload of the
dnd:capabilitiesChangedevent. What the window's drag-drop integration can deliver changed after the page loaded, for instance when a navigation changes the document origin. The payload has the same fields asdnd.getCapabilitiesreturns.