Mohamed Boudra
2238171955
Measuring scrollHeight on the live textarea with an explicit height set can only grow — it can never report a shorter content height. The old `height: auto` toggle flickered across browsers. Use a hidden off-DOM textarea that mirrors the composer's text-metric styles and width, and read its scrollHeight on value/resize changes. Gated by Metro file extension (.web / .native) so it's trivial to rip out later.
14 lines
322 B
TypeScript
14 lines
322 B
TypeScript
import type { RefObject } from "react";
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interface Args {
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value: string;
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textareaRef: RefObject<unknown>;
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minHeight: number;
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maxHeight: number;
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onHeight: (height: number) => void;
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}
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export function useComposerHeightMirror(_args: Args): void {
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// No-op on native: onContentSizeChange drives height natively.
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}
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