bug(android): Holding backspace appears to desync context between web and app.

[mcdurdin]

Describe the bug

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

Holding backspace appears to desync context between web and app. After the first backspace, subsequent letters are not deleted from the textarea, but holding for a few seconds shows the keyboard going to upper case, suggesting web thinks it is at start of context. After that, even tapping the backspace key then does nothing, suggesting same thing.

Per @jahorton, does not appear to repro on iOS (15.0.268-stable).

Expected behavior

Backspace should work. Holding backspace should delete more rapidly.

Screenshots

Screen_Recording_20220831-060939_Keyman.mp4

Related issues

• bug(android): Pressing Backspace key for a while make the cursor stuck on the text pane  #7069
• bug(android): Holding backspace also seems to trigger a longpress on another random key  #7155 is also visible in the video above.

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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]

I tried removing onLongPress from KMKeyboard and the problem went away. So it's a conflict between the Android gesture recognizer and the KeymanWeb code. Next question is: when did this arise -- and why? I may do a bisect to find out.

[mcdurdin]

Fixed by #7156.