GitLab

(mac-ae-keyboard-modifiers): New function.
(mac-handle-toolbar-switch-mode): Use it.
(mac-dnd-handle-drag-n-drop-event): Likewise.  Set action to `copy'
if keyboard modifiers on drop contain option key.
(mac-dnd-drop-data): Add optional argument `action'.
(special-event-map): Remove binding for M-drag-n-drop.