Bug: Inconsistent mention list hide behavior

[PatrickNausha]

Repro steps

Repro steps given a quill editor with quill-mention configured:

1. Enter @ in the editor to reveal the mention list.
2. Click blank space on the page.
3. Observe: The mention list hides.
4. Enter @ in the editor to reveal the mention list.
5. Click some text in the page.
6. Observe: The mention list hides.
7. Enter @ in the editor to reveal the mention list.
8. Click an image (must be img tag) in the page.

Expected: The mention list should hide after clicking anywhere outside the quill editor. Actual: The mention list remains visible after clicking the image.

I believe the same exists for button elements in addition to img elements.

Versions tested

I've repro'd with

• Quill 2.0.2
• quill-mention 6.0.0 (?) served at https://quill-mention.com/quill.mention.min.js

and

• Quill 1.3.7
• quill-mention 4.1.0

in Google Chrome.

Demo

You can repro the problem in this fiddle which is a simplified version of the quill-mention.com home page source.

[PatrickNausha]

The impact of this bug in my app is that some clicks dismiss the editor, but—depending on where you click—the editor may disappear while the mention list remains.