add useCallback

[zytact]

Summary by CodeRabbit

• Refactor
  • Enhanced the interactive canvas experience by optimizing performance. Users will notice a smoother, more responsive interaction when switching between drawing, erasing, dragging, and shape modes.

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Name	Status	Preview	Comments	Updated (UTC)
strokeshare	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 6, 2025 4:36am

[coderabbitai]

Walkthrough

The update applies React's useCallback hook to the resetInteractionStates function in the InfiniteCanvas component. This change memoizes the function to prevent unnecessary re-creations on each render. The dependencies array is explicitly defined to ensure the memoized function updates only when states like addToHistory, drawing modes, and various canvas elements change.

Changes

File(s)	Change Summary
components/ui/InfiniteCanvas.tsx	Wrapped the resetInteractionStates function with the useCallback hook and added a dependencies array including addToHistory, circleMode, isDragging, isDrawing, isErasing, lines, rectangleMode, rectangles, circles, textElements, and images.

Sequence Diagram(s)

sequenceDiagram
    participant Canvas as InfiniteCanvas
    participant Func as resetInteractionStates (useCallback)
    participant Deps as Dependencies

    Canvas->>Func: Call resetInteractionStates
    Func->>Canvas: Reset interaction states (drag, draw, erase, shape)
    Note over Func: Memoization checks dependencies:
    Note right of Deps: addToHistory, circleMode, isDragging, etc.

Loading

Poem

I hop with joy in the code garden today,
My functions now linger, they wisely stay.
With each dependency in a joyful array,
InfiniteCanvas dances in a more graceful way.
A bunny sings of refactors, hip-hip-hooray!

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📜 Recent review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 5b507b3 and 4190c21.

📒 Files selected for processing (1)

• components/ui/InfiniteCanvas.tsx (3 hunks)

🔇 Additional comments (2)

components/ui/InfiniteCanvas.tsx (2)

12-12: Added useCallback import for function memoization.

Adding the useCallback hook import is necessary for the optimization implemented later in the code.

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1492-1534: Good optimization using useCallback.

Memoizing the resetInteractionStates function with useCallback is a great performance improvement. This prevents unnecessary recreation of the function on each render, which is especially important since this function is used in event handlers and as a dependency in useEffect.

The dependency array is properly implemented with all the relevant state variables and functions that the callback uses internally.

✨ Finishing Touches

• 📝 Generate Docstrings

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