[RNMobile] Improve how URLs are populated in embed blocks from device clipboard

[jhnstn]

What problem does this address?

While testing iOS 18.5 I noticed when adding a YouTube embed block with an Instagram url in my clipboard, the link input was auto populated with the domain name (instagram.com) cut off from the view. When I inserted the block an Instagram block appeared. I didn't expect the YouTube embed to accept a url from another embed service. It was also difficult to know I had a URL from a different service in my clipboard since the cursor was placed at the right end of the text hiding the domain name.

What is your proposed solution?

Embed blocks should not auto populate the link field from the device clipboard if the url is from a different service.
Additionally we might want to consider placing the cursor of an auto pasted url to the left of the text so the domain name is clear.

[hypest]

WDYT @jd-alexander since you worked on the embed block on native? Is this perhaps intended behaviour?

cc @fluiddot for the FYI as you are on scheduled leave at the moment.

[jd-alexander]

WDYT @jd-alexander since you worked on the embed block on native? Is this perhaps intended behaviour?

cc @fluiddot for the FYI as you are on scheduled leave at the moment.

Thanks for the ping @hypest This behavior is expected. On the web the Embed block performs this upgrade operation when varying providers are used on specific Embed variants.

[jd-alexander]

Thanks for sharing the proposed solution @jhnstn I will take a look at this behavior.