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[web] Don't allow creating subchannels with users the user should not be able to add

Authored by inka on Wed, Jul 10, 1:32 AM.
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issue: ENG-8710
The user should not be able to add some users to some chats. On native we handle this in the UI by showing a popup if the user wants to add someone they cannot.
On web we decided that for now we will just not display those users. Handlig tih siwth a popup is tracked in ENG-8798

Property alert is set only when the user cannot be added to the thread. There are four cases. They can be found in lib/shared/search-utils.js in usePotentialMemberItems.

Test Plan

Tested that in all four cses the users don't show up in search results on web anymore.

Diff Detail

rCOMM Comm
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Event Timeline

inka requested review of this revision.Wed, Jul 10, 2:12 AM
This revision is now accepted and ready to land.Wed, Jul 10, 4:38 AM

This diff and the parent diff are missing React.useMemos in critical places

Feedback to both @inka and @tomek: please be more thoughtful about this going forward. Skipping a useMemo can cause huge performance regressions and can even result in the app crashing

If you disagree or this feedback doesn't make sense, please re-request review

224 ↗(On Diff #42208)

You are creating a new array on every invocation here, which will force useENSNames to constantly re-query for ENS names

Please wrap this in a React.useMemo

228–229 ↗(On Diff #42208)

This also needs to be wrapped in a React.useMemo