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[PR #25813] fix: resolve chat sidebar UI bugs for hover panel and dropdown menu #31212

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opened 2026-02-21 20:49:02 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:49:02 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/25813

State: closed
Merged: Yes

Summary

This PR fixes three UI bugs in the chat sidebar component related to hover panel state management and dropdown menu behavior.

Fixes #25812

Changes:

  1. Reset hover sidebar state when fixed sidebar expands - Added useEffect to reset showSidePanel when sidebar transitions from collapsed to expanded state
  2. Close dropdown menu when hover sidebar hides - Added forceClose prop to MenuDropdown to handle panel visibility changes
  3. Prevent sidebar flash on page refresh - Used lazy state initialization for sidebarCollapseState to read localStorage value immediately

Screenshots

Before After
Hover panel appears unexpectedly after collapse Hover panel stays hidden until user hovers
Dropdown menu remains floating when sidebar hides Dropdown menu closes automatically
Sidebar flashes during page refresh Smooth initial render without animation

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/25813 **State:** closed **Merged:** Yes --- ## Summary This PR fixes three UI bugs in the chat sidebar component related to hover panel state management and dropdown menu behavior. Fixes #25812 ### Changes: 1. **Reset hover sidebar state when fixed sidebar expands** - Added useEffect to reset showSidePanel when sidebar transitions from collapsed to expanded state 2. **Close dropdown menu when hover sidebar hides** - Added forceClose prop to MenuDropdown to handle panel visibility changes 3. **Prevent sidebar flash on page refresh** - Used lazy state initialization for sidebarCollapseState to read localStorage value immediately ## Screenshots | Before | After | |--------|-------| | Hover panel appears unexpectedly after collapse | Hover panel stays hidden until user hovers | | Dropdown menu remains floating when sidebar hides | Dropdown menu closes automatically | | Sidebar flashes during page refresh | Smooth initial render without animation | ## 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 20:49:02 -05:00
yindo closed this issue 2026-02-21 20:49:02 -05:00
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Reference: langgenius/dify#31212
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