RTL and Bidirectional Text Issues

[nikbinmarjan]

Steps to reproduce

1. Open the Mail app (or Notes/Talk).
2. Compose a new email or message, or reply to an existing one.
3. Type a sentence that contains a mix of English (LTR) and Arabic/Persian/Hebrew (RTL) text. For example: "Hello, this is a تست example." (Replace "تست" with any Arabic/Persian/Hebrew word). A more complex example: "The product name is اسم المنتج - Example."
4. Observe how the text is displayed. The RTL text may be displayed incorrectly, with reversed word order, incorrect punctuation placement, or other issues.
5. Try different combinations of RTL and LTR text to see the range of problems.
6. Test with numbers embedded in RTL text (e.g., "The price is 123 ريال").

Expected behavior

The Mail app (and Notes/Talk,..) should correctly render bidirectional text, ensuring that RTL and LTR text is displayed in the proper order and direction. Punctuation and numbers should also be displayed correctly.

Actual behavior

there is no rtl/ltr button such as other mail client (outlook,roundcube,gmail,....)to select and bidirectionl text is incorrect direction.

Mail app version

5.1.10

Nextcloud version

Nextcloud Hub 10 (31.0.7)

Mailserver or service

postfix/dovecot

Operating system

No response

PHP engine version

PHP 8.3

Nextcloud memory caching

No response

Web server

Nginx

Database

MariaDB

Additional info

No response

[ChristophWurst]

Thank you for your report

there is no rtl/ltr button such as other mail client

That is correct, because we detect the direction from the language. We made a bunch of changes to improve bidirectional text handling. Most is linked from nextcloud/groupware#84.

Could you please share a screenshot of the specific areas that appear wrong? Thanks

[nextcloud-command]

Hi there! It looks like this issue hasn’t seen much activity for a while and might need a bit more information to move forward. If we don’t hear back soon, we may close it to keep things organized. Thanks again for your contributions – we really appreciate it!

[nikbinmarjan]

my language is english but in compose new message i can not write persian/english togethere because direction icon is not accessible in editor.

[hamza221]

Looks like the direction button doesn't exist as an official plugin in CKEditor 5. maybe we can create a custom plugin at some point ?

[hamza221]

@nikbinmarjan do you think just adding the direction buttons would solve the issue at hand or are other fixes needed?

[hamza221]

We decided to add a direction button to the toolbar