[wp-trac] [WordPress Trac] #63161: Unable to Navigate Autocomplete Suggestions via Keyboard in Theme & Plugin File Editor

[WordPress Trac]

#63161: Unable to Navigate Autocomplete Suggestions via Keyboard in Theme & Plugin
File Editor
-----------------------------+-----------------------------
 Reporter:  akshayrochaniwp  |      Owner:  (none)
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  General          |    Version:
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 This issue affects the built-in Theme and Plugin File Editor within the
 WordPress admin area.

 When editing a file inside the editor, keyword suggestions appear as we
 type. However, there is a problem specifically with `.php` files:

 - When typing in a `.php` file, the autocomplete suggestion list appears.
 - Attempting to navigate the suggestions using the up/down arrow keys does
 not work as expected.
 - The selection remains stuck on the first suggested item, making it
 impossible to move through the list via keyboard input.
 - However, when selecting suggestions using the mouse cursor, they work as
 expected.

 > Here’s a screen recording demonstrating the issue :
 (https://www.awesomescreenshot.com/video/37998611?key=262d499496bfcc778da2e6975eaaf248)

 This issue is only present in `.php` files. Other file types such as
 `.css`, `.js`, and `.html` work correctly and allow navigation via
 keyboard input.

 **Steps to Reproduce:**

 1. Open the WordPress Theme or Plugin File Editor.
 2. Edit a `.php` file and start typing a function or keyword that triggers
 the autocomplete suggestion list.
 3. Try navigating the suggestion list using the up/down arrow keys.
 4. Notice that the selection remains stuck on the first item and does not
 move.
 5. Now, try selecting a suggestion with the mouse cursor—it works fine.

 **Expected Behavior:**
 - The up/down arrow keys should allow smooth navigation through the
 autocomplete suggestions, just like they do for `.css`, `.js`, and `.html`
 files.

 **Actual Behavior: **
 - Keyboard navigation is broken for `.php` files, preventing users from
 selecting suggestions efficiently.

 **Environment Details: **
 - WordPress Version:  6.7.2
 - Browser: Chrome, Firefox
 - Theme & Plugins: Tested with default theme Twenty Twenty-One and no
 plugin active.

 Would appreciate further insights or confirmation from the Core team on
 this. Thank you!

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Ticket URL: <https://core.trac.wordpress.org/ticket/63161>
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