bug(web): unnecessary flicker on banner while typing

[mcdurdin]

Describe the bug

From a team review of the Keyman for Android UX (#7161)

Even if suggestions remain the same, they blink out, then in again on each keystroke. It causes a flicker that is quite distracting while typing two-thumbs, and shouldn't be necessary!

Expected behavior

No flicker -- we should not see a blank unless we actually have no suggestions available. Perhaps delay updating the banner until the next suggestion lookup completes?

Screenshots

In the following video, I am typing slowly but you can see how the suggestions disappear and reappear with each keystroke, even if they don't change. Particularly noticeable on backspace.

Screen_Recording_20220831-043504_Keyman.mp4

Related issues

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Keyman for Windows/macOS/Linux/iPhone/iPad/Android:

• Device: Samsung A90 5G
• OS: Android 12
• Keyman version: 15.0.269-stable

[mcdurdin]

This seems to me to be adequately addressed in v17.0. @jahorton do you know which PR would have resolved this?

[jahorton]

I'd have to go digging and experimenting in order to tell. I'm not even sure if it was the gesture work (🐵) or the ES-modularization work (🧩) that would have fixed it... though likely the latter.

I did note the link mentioned above for a 🧩 PR, but I can't find an actual comment referring to this one from there.

[mcdurdin]

Fixed by #8544 or related PRs.

(Note the "619 hidden items" 😨 on that PR means that the reference to this issue will be somewhere in that conversation history I guess!)