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@jperals jperals commented Nov 11, 2025

Extract the useMobile hook and the breakpoints from components into component-toolkit, making window.matchMedia more error-resilient in the way.

After this, components will be refactored to use the useMobile hook and the breakpoints from component-toolkit.

Related ticket: AWSUI-61447

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codecov bot commented Nov 11, 2025

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.78%. Comparing base (d7ff55d) to head (c4caf56).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #173   +/-   ##
=======================================
  Coverage   98.78%   98.78%           
=======================================
  Files          36       37    +1     
  Lines         905      906    +1     
  Branches      242      254   +12     
=======================================
+ Hits          894      895    +1     
  Misses         11       11           

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@jperals jperals marked this pull request as ready for review November 11, 2025 17:18
@jperals jperals requested a review from a team as a code owner November 11, 2025 17:18
@jperals jperals requested review from YueyingLu and removed request for a team November 11, 2025 17:18
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

export function safeMatchMedia(element: HTMLElement, query: string) {
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Moved from src/internal/visual-mode/index.ts so that the new useMobile hook can use it too

* wouldn't know which one of them to use).
* Instead, we use the media query here in JS too.
*/
return safeMatchMedia(document.body, `(max-width: ${mobileBreakpoint}px)`);
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Small difference with the existing implementation in components —I am not considering the case where window.matchMedia is falsy —TypeScript told me it is not possible and browser support quite agrees.

If, for any reason, in the very worst case, the call to matchMedia errors out, the error will be caught in safeMatchMedia.

['default', -1],
];

export const mobileBreakpoint = BREAKPOINT_MAPPING.filter(b => b[0] === 'xs')[0][1];
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It is also necessary to extract the breakpoints because useMobile needs the mobileBreakpoint.

@jperals jperals added this pull request to the merge queue Nov 12, 2025
Merged via the queue into main with commit 1e2200f Nov 12, 2025
45 checks passed
@jperals jperals deleted the use-mobile branch November 12, 2025 12:43
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2 participants