| 1 | /* @flow */
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| 2 | const selector = 'input, a, textarea, select, button, [tabIndex]:not([tabIndex="-1"])';
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| 3 |
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| 4 | export function getFocusBounds(element: HTMLElement): Array<?HTMLElement> {
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| 5 | const focusableChildren = element.querySelectorAll(selector);
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| 6 | return [focusableChildren[0] || null, focusableChildren[focusableChildren.length - 1] || null];
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| 7 | }
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| 8 |
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| 9 | export function getFirstFocusableChild(element: HTMLElement): ?HTMLElement {
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| 10 | return element.querySelector(selector);
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| 11 | }
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