Unverified50% confidenceFactExact time
macOS's drag-and-drop system is built on the NSPasteboard mechanism, using a Promise mechanism for deferred evaluation so that file data is only actually transferred after the drop target accepts the drop.
1
Sources
50%
Confidence
Long-term
Relevance
8/10/2026
First Seen
Sources
Chute：把Mac刘海变成隔空投送传送门的效率神器
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