Multi-character suggestion triggers only open at the start of a text block

[ntietje1]

EDIT: I realize this was fixed by fix: suggestion menu behaviour (BLO-1283, BLO-955) #2930

What’s broken?

Suggestion menus with a multi-character trigger, such as [[, do not open when other text appears earlier in the same text block:

• Typing [[ at the beginning of an empty paragraph opens the suggestion menu.
• Typing Something [[ does not open it.

The problem is in SuggestionMenu's handleTextInput implementation. When the final character of a multi-character trigger is entered, the handler reads triggerCharacter.length existing characters and then appends the newly entered character:

What did you expect to happen?

A multi-character suggestion trigger should open wherever the trigger is typed in an eligible text block, regardless of what text appears before it.

Steps to reproduce

1. Configure a SuggestionMenuController with a multi-character trigger:

<SuggestionMenuController
   triggerCharacter="[["
   getItems={getItems}
/>

2. Focus an empty paragraph and type [[.
3. Observe that the suggestion menu opens.
4. Close the menu or create another paragraph.
5. Type test [[.
6. Observe that the suggestion menu does not open.

BlockNote version

v0.46.2

Environment

Firefox/Chromium on Windows with React 19

Additional context

No response

Contribution

• I'd be interested in contributing a fix for this issue

Sponsor

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