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[web] Separate `ChatMessageListContainer` from `ChatMessageList`
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Authored by jacek on Jul 4 2022, 5:58 AM.
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Details

Summary

Excluded ChatTopBar and ChatInputBar components and thread selection logic from ChatMessageList into ChatMessageListContainer. This approach follows the solution in native app.
The MessageList component will not contain logic for selecting threads and the change will separate logic responsible for displaying thread content from thread selection logic (which will be extended in diffs introducing thread creation).
There are no changes in code logic - only moving and changes related to types.

Test Plan

Running web app and confirming it works aas before. Confirm if drag and drop for files still works.

Diff Detail

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Event Timeline

web/chat/chat-message-list.react.js
376 ↗(On Diff #14131)

The variable was incorrectly typed, and the type here should be narrowed to boolean as it's in component definition.

The previous type was wrong but worked here because of any-typed dndProps when passing parameters into component (we discussed it with @palys-swm)

377 ↗(On Diff #14131)

The ID should depend directly on threadInfo passed to component instead of value received from navigation. As these ID values should be the same (as for now), it was not a problem but should be changed to avoid problems when introducing navigation for thread creation (in next diffs)

Couple of minor questions inline

web/chat/chat-message-list-container.css
10 ↗(On Diff #14131)

Saw that this was copy/pasted from existing CSS, but we should probably move it to theme.css and refer to it here as var(--blah)

web/chat/chat-message-list-container.react.js
23–32 ↗(On Diff #14131)

Do we need to a create a new variable activeID that's set to activeChatThreadID? Or can we just use activeChatThreadID directly?

(Noticed that this was originally in ChatMessageList, so realize you didn't necessarily choose to do it like this)

82 ↗(On Diff #14131)

Do we want to keep this console.log around, or was it just included to help with developing/debugging?

If we want to keep it around, we should probably have a more descriptive log message... but my guess is that this wasn't meant to be included?

web/chat/chat-message-list.react.js
377 ↗(On Diff #14131)

Why do we need to use optional chaining here? Aren't we guaranteed to have a valid threadInfo and aren't valid threadInfos guaranteed to have an id property?

412 ↗(On Diff #14131)

Can this be threadInfo.id?

This revision is now accepted and ready to land.Jul 5 2022, 12:05 PM
web/chat/chat-message-list-container.css
10 ↗(On Diff #14131)

Totally agree. As the diff focus on moving code, I didn't want to introduce unnecessary changes.
It should probably be covered by separate diff (and probably some other CSS changes, because current code is a bit suspicious and difficult to modify (e.g. the solution with hard-coded margins 400px and 402px)

web/chat/chat-message-list-container.react.js
23–32 ↗(On Diff #14131)

I think we can use activeChatThreadID directly. As in my comment above, I didn't want to introduce unnecessary changes. I think it's the best to cover these improvements in separate diff.

82 ↗(On Diff #14131)

Yes, it was added accidentally. Thanks for catching. I have no idea how could I miss it.

web/chat/chat-message-list.react.js
377 ↗(On Diff #14131)

Good catch, we don't need it. Thanks

412 ↗(On Diff #14131)

Yes, the same above in line 401, I suppose. It's probably because the threadInfo was an optional before my changes in this file.

Fix optional chaining issues after Atul's review.
Remove duplicated part of code, that was not removed after moving some parts of the logic to the parent component.

atul added inline comments.
web/chat/chat-message-list-container.react.js
59 ↗(On Diff #14217)

There's no messageListData in this file, so we should probably change the message here.

59–60 ↗(On Diff #14217)

Should we position these invariants above the first usages of threadInfo and inputState?

This revision is now accepted and ready to land.Jul 6 2022, 9:10 AM
web/chat/chat-message-list-container.css
10 ↗(On Diff #14131)

Yeah, make sense for this diff to focus on moving code

web/chat/chat-message-list-container.react.js
23–32 ↗(On Diff #14131)

Makes sense

tomek added inline comments.
web/chat/chat-message-list-container.react.js
44 ↗(On Diff #14217)

Shouldn't we add types here?

web/chat/chat-message-list-container.react.js
44 ↗(On Diff #14217)

The diff focuses on moving code from ChatMessageList. It seems that react-dnd doesn't support flow types, so adding matching types here may be challenging

59–60 ↗(On Diff #14217)

You're right, I'll move it

rebase & update after review comments