feat: v2 - minicontent for history window

[maxy-shpfy]

Description

Adds a mini content component for the History window that displays compact undo/redo buttons. The HistoryWindowMiniContent component renders two icon-only buttons (Undo and Redo) that are enabled or disabled based on the current undo/redo state. This mini content is registered with the History window so it can be displayed in a collapsed/mini view of the panel.

Related Issue and Pull requests

Type of Change

• Bug fix
• New feature
• Improvement
• Cleanup/Refactor
• Breaking change
• Documentation update

Checklist

• I have tested this does not break current pipelines / runs functionality
• I have tested the changes on staging

Screenshots (if applicable)

Screen Recording 2026-05-13 at 5.22.20 PM.mov (uploaded via Graphite)

Test Instructions

1. Open the pipeline editor.
2. Make a change to trigger an undoable action.
3. Collapse or minimize the History window panel.
4. Verify that the undo and redo buttons appear in the mini view.
5. Confirm that the undo button is enabled after making a change and that clicking it correctly undoes the action.
6. Confirm that the redo button becomes enabled after undoing and correctly redoes the action.

Additional Comments

Pointer events on the buttons are stopped from propagating to prevent unintended interactions with the surrounding window drag/resize handlers.

[maxy-shpfy]

• feat: v2 - minicontent for history window #2269 👈 (View in Graphite)
• feat: v2 - mini content for collapsed docked windows #2188
• master

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

🎩 Preview

A preview build has been created at: 05-13-feat_v2_-_minicontent_for_history_window/050e8e1

[camielvs]

The only way to open the mini window is to click on a disabled undo/redo button, which is not good UX. I also think that given we now have undo-redo always available in the bottom right of the canvas it's nopt necessary to provide it here in the sidebar. We should consider a single unified "history" button instead, for activating the history mini window.