(hostToFocus: HTMLElement | null | undefined, overlay: HTMLIonOverlayElement)
| 160 | * the host element itself. |
| 161 | */ |
| 162 | const focusElementInOverlay = (hostToFocus: HTMLElement | null | undefined, overlay: HTMLIonOverlayElement) => { |
| 163 | let elementToFocus = hostToFocus; |
| 164 | |
| 165 | const shadowRoot = hostToFocus?.shadowRoot; |
| 166 | if (shadowRoot) { |
| 167 | // If there are no inner focusable elements, just focus the host element. |
| 168 | elementToFocus = shadowRoot.querySelector<HTMLElement>(focusableQueryString) || hostToFocus; |
| 169 | } |
| 170 | |
| 171 | if (elementToFocus) { |
| 172 | focusVisibleElement(elementToFocus); |
| 173 | } else { |
| 174 | // Focus overlay instead of letting focus escape |
| 175 | overlay.focus(); |
| 176 | } |
| 177 | }; |
| 178 | |
| 179 | /** |
| 180 | * Traps keyboard focus inside of overlay components. |
no test coverage detected