Held Quasimode: the interface pattern where your body holds the state

GrantCuster · x · 2026-11-10

A collage of thoughts on the Held Quasimode pattern ('the body holds the state'): binding modes to sustained physical action keeps them inside the user's attention. Covers classic examples like the Apple Lisa mouse and Paper's two-finger undo, the counterexample of iPhone jiggle mode as a disguised latch, and the author's own practice using quasimodes for selection and duplication in a canvas app.

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