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feat(a11y): implement Escape key shortcut to dismiss modals and popups (#20) - #21
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Summary
Resolves #20 by introducing the
useEscapeKeycustom hook and integrating Escape-key dismiss functionality intoWalletModal, alongside comprehensive unit test coverage.Key Changes
src/hooks/useEscapeKey.ts): Reusable, SSR-safe keyboard event listener attaching akeydownlistener towindowwith clean lifecycle teardown.src/components/wallet/WalletModal.tsx): InvokesuseEscapeKey(onClose, isOpen)so active modals dismiss immediately upon pressingEscape.src/__tests__/useEscapeKey.test.tsx): Validates positive trigger on Escape, ignored non-Escape keys, disabled state gating, and proper listener cleanup on unmount.Verification
main.