<svelte:window bind:activeElement>

[Rich-Harris]

Apparently we can track this using captured focus events:

https://svelte.dev/repl?version=3.1.0&gist=83b2c5fc64d3eb5fb5fa0691e47bbce8

Whether it belongs on <svelte:window> isn't totally clear, since it's document.activeElement rather than window.activeElement. Maybe we'd need a new <svelte:document> instead.

cc @mrkishi

[mrkishi]

I'd go for <svelte:document> simply for correctness (or: html alignment), but I can understand if that's too much for a single property. If it were to be on <svelte:window>, I'd opt for a different name though, as to make it obvious it's a custom thing.

On that note, I looked at other possible bindings and came up with activeElement, fullscreenElement, pointerLockElement, URL and visibilityState. These are all read-only properties for which we could observe with event listeners.

Apart from this, title could be a two-way binding, but it would require overwriting document.title's setter in order to get updates (unless I'm missing another way to watch changes). Since this would only be generated if used, I think we could actually do it with a here-be-dragons note in the API docs.

With all of these, I think <svelte:document> is warranted. If this is a go, I can try for a PR (although I'm not gonna be as efficient as you wizards).

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[ibilux]

I'd go for <svelte:document> simply for correctness (or: html alignment), but I can understand if that's too much for a single property. If it were to be on <svelte:window>, I'd opt for a different name though, as to make it obvious it's a custom thing.

On that note, I looked at other possible bindings and came up with activeElement, fullscreenElement, pointerLockElement, URL and visibilityState. These are all read-only properties for which we could observe with event listeners.

Apart from this, title could be a two-way binding, but it would require overwriting document.title's setter in order to get updates (unless I'm missing another way to watch changes). Since this would only be generated if used, I think we could actually do it with a here-be-dragons note in the API docs.

With all of these, I think <svelte:document> is warranted. If this is a go, I can try for a PR (although I'm not gonna be as efficient as you wizards).

Did this ever get implemented?

[MahmoodKhalil57]

bump