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[PR #29623] fix(workflow): agent prompt editor canvas not covering full text height #32487

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opened 2026-02-21 20:51:30 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:51:30 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/29623

State: closed
Merged: Yes

Summary

Fixed an issue where the prompt editor canvas/background in the Agent node does not extend to cover long text content. When users input lengthy system prompts, the background styling would clip and not follow the content height, creating a visual bug where text appears outside the styled area.

Root Cause: The background styling (bg-components-input-bg-normal, rounded-lg) was incorrectly applied to inputClassName which targets the ContentEditable component directly, instead of the container div that wraps and scrolls the content.

Solution:

  1. Moved background and rounded styling from inputClassName to editorContainerClassName
  2. Changed focus: to focus-within: for proper focus state handling on the container
  3. Kept only padding (px-2 py-1) in inputClassName

Screenshots

Before After
image image

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/29623 **State:** closed **Merged:** Yes --- ## Summary Fixed an issue where the prompt editor canvas/background in the Agent node does not extend to cover long text content. When users input lengthy system prompts, the background styling would clip and not follow the content height, creating a visual bug where text appears outside the styled area. Root Cause: The background styling (bg-components-input-bg-normal, rounded-lg) was incorrectly applied to inputClassName which targets the ContentEditable component directly, instead of the container div that wraps and scrolls the content. Solution: > 1. Moved background and rounded styling from inputClassName to editorContainerClassName > 2. Changed focus: to focus-within: for proper focus state handling on the container > 3. Kept only padding (px-2 py-1) in inputClassName ## Screenshots | Before | After | | :---: | :---: | |<img width="1918" height="888" alt="image" src="https://github.com/user-attachments/assets/bbbe11dc-0359-4758-ae20-6bebbdc11614" />| <img width="1918" height="888" alt="image" src="https://github.com/user-attachments/assets/f3bd8766-c1f7-4493-9b15-ac18d79201a9" /> ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:51:30 -05:00
yindo closed this issue 2026-02-21 20:51:30 -05:00
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Reference: langgenius/dify#32487
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