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[web] Show message tooltip on hover in the pinned messages modal
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Authored by rohan on Apr 21 2023, 6:49 AM.
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Details

Summary

Currently, the tooltip displays below the pinned messages modal when a message is hovered over. This is because of the z-index property in the ModalOverlay component.

The solution here is to make the tooltip container, icons, and label to have a z-index of 5 so it displays above the modal. This visually has no effect on the tooltip in chat.

Linear: https://linear.app/comm/issue/ENG-3451/show-message-tooltip-on-hover-in-the-pinned-messages-modal

Depends on D7505

Test Plan

Please watch the video showing the behavior of the tooltip in both chat and the pinned messages modal

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web/utils/tooltip-action-utils.js
47 ↗(On Diff #25531)

This is the same approach as in https://phab.comm.dev/D7382

rohan requested review of this revision.Apr 21 2023, 7:07 AM
tomek requested changes to this revision.Apr 25 2023, 3:06 AM

Is there a way to avoid specifying z-index? (usually when we use z-index in one place, it quickly becomes necessary in a lot of places) If there's no other way, can we limit the number of places where it has to be specified?

This revision now requires changes to proceed.Apr 25 2023, 3:06 AM

Limit instances of z-index

In D7563#225479, @tomek wrote:

Is there a way to avoid specifying z-index? (usually when we use z-index in one place, it quickly becomes necessary in a lot of places) If there's no other way, can we limit the number of places where it has to be specified?

I believe the z-index is necessary since we're rendering the message in the ModalOverlay, and that has a z-index of 4, so by default I think the tooltip will render below the modal.

Screenshot 2023-04-25 at 6.29.07 AM.png (1×3 px, 552 KB)

I think alternatively, though like you say, we can limit the number of 'z-indexes' to just messageTooltipContainer and emojiKeyboard, and add a position: relative to messageTooltipContainer since z-index only works on positioned elements.

rohan added inline comments.
web/utils/tooltip-action-utils.js
61 ↗(On Diff #25649)

This is the same approach as in https://phab.comm.dev/D7382

I believe the z-index is necessary since we're rendering the message in the ModalOverlay, and that has a z-index of 4, so by default I think the tooltip will render below the modal.

Ahhh, that's exactly what I've described. The fact that z-index is used in one place made it necessary to use it in the other.

I think alternatively, though like you say, we can limit the number of 'z-indexes' to just messageTooltipContainer and emojiKeyboard, and add a position: relative to messageTooltipContainer since z-index only works on positioned elements.

That's a good idea!

This revision is now accepted and ready to land.Apr 25 2023, 3:42 PM