Slow typing performance when approx 45k characters used within editor

[nialljawad96]

Steps to Reproduce

1. Place 45000 characters into editor
2. Type a sentence
3. Observe lag and delay

Environment

• MacOS
• Flutter 3.16.4
• Fleather version 1.13.2

[amantoux]

@nialljawad96 thank you for pointing this out
Indeed performance on large pieces of text hasn't been tested yet.

[Amir-P]

Hi @nialljawad96, we have a PR (#408) that might fix this issue. Would you be able to test it and get back to us? You can use it like following:

dependency_overrides:
  parchment:
    git:
      url: https://github.com/fleather-editor/fleather
      ref: perf/cache_offset_and_length_for_nodes
      path: packages/parchment
  fleather:
    git:
      url: https://github.com/fleather-editor/fleather
      ref: perf/cache_offset_and_length_for_nodes
      path: packages/fleather