🎨 Variable Font Animation Demo - Gooey Text Effect#111
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- Created interactive variable font animation component using Google Fonts' Recursive - Implements proximity-based text distortion with smooth animations - Combines font-variation-settings with CSS transforms for enhanced gooey effect - Added comprehensive Storybook stories with interactive controls - Features real-time cursor tracking with requestAnimationFrame optimization - Includes multiple demo variations (subtle, intense, custom text, etc.) - Responsive design with fallback loading states
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WalkthroughA new React component, Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant VariableFontAnimation
participant GoogleFonts
User->>VariableFontAnimation: Mounts component
VariableFontAnimation->>GoogleFonts: Injects font link
GoogleFonts-->>VariableFontAnimation: Font loads
VariableFontAnimation->>User: Renders animated text
User->>VariableFontAnimation: Moves mouse over text
VariableFontAnimation->>VariableFontAnimation: Calculates per-letter distance to cursor
VariableFontAnimation->>VariableFontAnimation: Updates letter styles via requestAnimationFrame
User->>VariableFontAnimation: Mouse leaves text
VariableFontAnimation->>VariableFontAnimation: Resets letter styles
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~15 minutes Poem
✨ Finishing Touches
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Actionable comments posted: 3
🧹 Nitpick comments (2)
apps/docs/src/experimental/VariableFontAnimation.tsx (2)
23-37: Enhance font loading with error handling and optimization.The current font loading approach lacks error handling and could benefit from optimization strategies.
Improve font loading:
useEffect(() => { // Load the Recursive variable font from Google Fonts const link = document.createElement('link'); link.href = 'https://fonts.googleapis.com/css2?family=Recursive:slnt,wght,CASL,CRSV,MONO@-15..0,300..1000,0..1,0..1,0..1&display=swap'; link.rel = 'stylesheet'; + link.crossOrigin = 'anonymous'; document.head.appendChild(link); link.onload = () => setIsLoaded(true); + link.onerror = () => { + console.warn('Failed to load Recursive font, falling back to system fonts'); + setIsLoaded(true); // Still show component with fallback fonts + }; + + // Set a timeout as fallback + const timeoutId = setTimeout(() => { + if (!isLoaded) { + console.warn('Font loading timeout, proceeding with fallback'); + setIsLoaded(true); + } + }, 5000); return () => { if (document.head.contains(link)) { document.head.removeChild(link); } + clearTimeout(timeoutId); }; }, []);
39-109: Animation implementation is well-optimized.The use of
requestAnimationFrame, proper event listener cleanup, and efficient distance calculations demonstrate good performance practices. The mathematical approach for intensity mapping is sound.Consider memoizing calculations for repeated operations:
// Could memoize expensive calculations const memoizedDistanceCalc = useMemo(() => { return (centerX: number, centerY: number, clientX: number, clientY: number) => Math.sqrt(Math.pow(centerX - clientX, 2) + Math.pow(centerY - clientY, 2)); }, []);
📜 Review details
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Review profile: CHILL
Plan: Pro
📒 Files selected for processing (2)
apps/docs/src/experimental/VariableFontAnimation.stories.tsx(1 hunks)apps/docs/src/experimental/VariableFontAnimation.tsx(1 hunks)
🧰 Additional context used
📓 Path-based instructions (7)
**/*.{tsx,ts}
📄 CodeRabbit Inference Engine (.cursor/rules/form-component-patterns.mdc)
**/*.{tsx,ts}: Props interfaces should be named as ComponentNameProps
Form schemas should be named formSchema or componentNameSchema
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
{apps,packages}/**/*.{ts,tsx}
📄 CodeRabbit Inference Engine (.cursor/rules/monorepo-organization.mdc)
{apps,packages}/**/*.{ts,tsx}: Use package name imports for published packages (e.g., import { TextField } from '@lambdacurry/forms/remix-hook-form')
Import from specific entry points (e.g., import { TextField } from '@lambdacurry/forms/remix-hook-form/text-field')
Do not use relative imports across packages (e.g., avoid import { TextField } from '../../packages/components/src/remix-hook-form/text-field')
Order imports: 1) external libraries, 2) internal package imports, 3) cross-package imports, 4) type-only imports (grouped separately)
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
{apps,packages}/**/src/**/*.{ts,tsx}
📄 CodeRabbit Inference Engine (.cursor/rules/monorepo-organization.mdc)
{apps,packages}/**/src/**/*.{ts,tsx}: Use relative imports within the same package (e.g., import { FormControl } from './form')
Use relative imports for sibling directories (e.g., import { Button } from '../ui/button')
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
apps/docs/**/*.{ts,tsx}
📄 CodeRabbit Inference Engine (.cursor/rules/monorepo-organization.mdc)
In apps/docs, import from package name instead of relative paths for cross-package dependencies
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
{apps,packages}/**/src/**/*.{tsx,ts}
📄 CodeRabbit Inference Engine (.cursor/rules/monorepo-organization.mdc)
{apps,packages}/**/src/**/*.{tsx,ts}: Use kebab-case for component file names (e.g., text-field.tsx, data-table.tsx)
Match component name in PascalCase to the exported component from the file (e.g., text-field.tsx exports TextField)
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
**/*.{ts,tsx}
📄 CodeRabbit Inference Engine (.cursor/rules/monorepo-organization.mdc)
Avoid circular dependencies
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsxapps/docs/src/experimental/VariableFontAnimation.tsx
**/*.stories.tsx
📄 CodeRabbit Inference Engine (.cursor/rules/storybook-testing.mdc)
**/*.stories.tsx: Always use semantic queries (e.g., getByRole, getByLabelText) instead of CSS selectors or getByTestId in Storybook play functions.
Always usefindBy*queries for async elements instead ofgetBy*in play functions.
Always click an input before clearing it withuserEvent.clearin play functions.
Never place decorators in the meta configuration; always place decorators on individual stories.
Each story should test only one primary workflow; do not test multiple unrelated scenarios in a single story.
Always use play functions to simulate user interactions and assert results in stories.
Use the three-phase testing pattern in play functions: default state, invalid submission, valid submission.
Always include required imports for Storybook interaction testing:Meta,StoryObj,expect,userEvent, andwithReactRouterStubDecorator.
Meta configuration in stories should be minimal and clean, without global decorators.
Use the step function to organize complex interactions in play functions.
Export individual test functions for reusability and group related test functions together in story files.
Stories should serve as both documentation and automated tests.
Tests should complete in under 10 seconds for fast feedback.
Use accessibility-first queries and test keyboard navigation in stories.
Files:
apps/docs/src/experimental/VariableFontAnimation.stories.tsx
🧠 Learnings (3)
📓 Common learnings
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS custom properties for dynamic values, prefer CSS Grid for complex layouts, use container queries for responsiveness, and optimize animations for performance in all components
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use container queries and fluid typography for responsive design in all components
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS-only animations with Tailwind CSS for transitions and state changes; do not use external animation libraries
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{tsx} : Use consistent component structure: import React, Slot, cva, cn utility, and define variants using CVA
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Use accessibility-first queries and test keyboard navigation in stories.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/form-component-patterns.mdc:0-0
Timestamp: 2025-07-23T12:46:51.780Z
Learning: Applies to packages/components/src/remix-hook-form/**/*.stories.tsx : Form components should work with the existing Storybook testing patterns
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use Tailwind 4's improved arbitrary value syntax and modern CSS functions for sizing and spacing
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Always use semantic queries (e.g., getByRole, getByLabelText) instead of CSS selectors or getByTestId in Storybook play functions.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/react-typescript-patterns.mdc:0-0
Timestamp: 2025-07-23T12:47:43.342Z
Learning: Applies to src/components/**/*.tsx : Implement polymorphic components using asChild and as props in React 19 style
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Use the step function to organize complex interactions in play functions.
apps/docs/src/experimental/VariableFontAnimation.stories.tsx (11)
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Meta configuration in stories should be minimal and clean, without global decorators.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Always include required imports for Storybook interaction testing: Meta, StoryObj, expect, userEvent, and withReactRouterStubDecorator.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Stories should serve as both documentation and automated tests.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Never place decorators in the meta configuration; always place decorators on individual stories.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to apps/docs/src/remix-hook-form/*.stories.tsx : Story files must be named in kebab-case and have the .stories.tsx extension, located in apps/docs/src/remix-hook-form/.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/form-component-patterns.mdc:0-0
Timestamp: 2025-07-23T12:46:51.780Z
Learning: Applies to packages/components/src/remix-hook-form/**/*.stories.tsx : Form components should work with the existing Storybook testing patterns
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Use accessibility-first queries and test keyboard navigation in stories.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Export individual test functions for reusability and group related test functions together in story files.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Use the step function to organize complex interactions in play functions.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Always use play functions to simulate user interactions and assert results in stories.
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/storybook-testing.mdc:0-0
Timestamp: 2025-07-23T12:48:03.192Z
Learning: Applies to **/*.stories.tsx : Always use semantic queries (e.g., getByRole, getByLabelText) instead of CSS selectors or getByTestId in Storybook play functions.
apps/docs/src/experimental/VariableFontAnimation.tsx (10)
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS-only animations with Tailwind CSS for transitions and state changes; do not use external animation libraries
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS custom properties for dynamic values, prefer CSS Grid for complex layouts, use container queries for responsiveness, and optimize animations for performance in all components
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use container queries and fluid typography for responsive design in all components
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{tsx} : Use consistent component structure: import React, Slot, cva, cn utility, and define variants using CVA
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Use Tailwind 4's improved arbitrary value syntax and modern CSS functions for sizing and spacing
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/react-typescript-patterns.mdc:0-0
Timestamp: 2025-07-23T12:47:43.342Z
Learning: Applies to src/components/**/*.tsx : Organize React components with the structure: external imports, internal imports, type definitions, variants, implementation, displayName
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/react-typescript-patterns.mdc:0-0
Timestamp: 2025-07-23T12:47:43.342Z
Learning: Applies to src/components/**/*.tsx : Use functional components with TypeScript interfaces
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/react-typescript-patterns.mdc:0-0
Timestamp: 2025-07-23T12:47:43.342Z
Learning: Applies to src/components/**/*.tsx : Name props interfaces as ComponentNameProps (e.g., TextFieldProps)
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/ui-component-patterns.mdc:0-0
Timestamp: 2025-07-06T02:47:43.432Z
Learning: Applies to src/components/**/*.{ts,tsx} : Implement variant patterns using class-variance-authority (CVA) for all components that require variants
Learnt from: CR
PR: lambda-curry/forms#0
File: .cursor/rules/monorepo-organization.mdc:0-0
Timestamp: 2025-07-23T12:47:17.244Z
Learning: Applies to packages/components/src/**/*.{ts,tsx} : Use named exports for components for better tree-shaking (e.g., export const ComponentName = ...; avoid default exports)
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- GitHub Check: test
🔇 Additional comments (6)
apps/docs/src/experimental/VariableFontAnimation.tsx (5)
3-10: LGTM!The props interface correctly follows the
ComponentNamePropsnaming convention and provides well-typed optional props with sensible defaults.
111-127: LGTM on letter generation logic.The approach to split text into individual letters with proper space handling using non-breaking space is well-implemented. Using index as keys is acceptable since the text is static during component lifecycle.
131-204: Replace inline styles with Tailwind CSS and container queries.The current styling approach conflicts with established patterns. Learnings emphasize using Tailwind CSS, container queries for responsiveness, and CSS custom properties for dynamic values.
Refactor to use Tailwind classes and extract styles:
- <style>{` - .variable-font-container { - font-family: 'Recursive', monospace; - font-size: ${fontSize}px; - /* ... rest of inline styles */ - } - /* ... more inline styles */ - `}</style> + <style>{` + .gooey-letter { + font-variation-settings: + 'wght' var(--font-weight, 400), + 'slnt' var(--font-slant, 0), + 'CASL' var(--font-casual, 0); + transform: + scale(var(--scale, 1)) + skew(var(--skew-x, 0deg), var(--skew-y, 0deg)); + transition: + font-variation-settings ${animationSpeed}s cubic-bezier(0.25, 0.46, 0.45, 0.94), + transform ${animationSpeed}s cubic-bezier(0.25, 0.46, 0.45, 0.94); + } + `}</style>And use Tailwind classes for the container:
- <div className={`variable-font-container ${className}`}> + <div + className={cn(variableFontVariants({ size, theme }), className)} + style={{ fontSize: `${fontSize}px` }} + >Replace media queries with container queries as recommended in learnings.
⛔ Skipped due to learnings
Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS custom properties for dynamic values, prefer CSS Grid for complex layouts, use container queries for responsiveness, and optimize animations for performance in all componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use Tailwind CSS 4 custom properties and container queries for theming and responsive designLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use container queries and fluid typography for responsive design in all componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use Tailwind 4's improved arbitrary value syntax and modern CSS functions for sizing and spacingLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use Tailwind CSS 4 with modern CSS features and performance optimizations in all UI componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS-only animations with Tailwind CSS for transitions and state changes; do not use external animation librariesLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/storybook-testing.mdc:0-0 Timestamp: 2025-07-23T12:48:03.192Z Learning: Applies to **/*.stories.tsx : Always use semantic queries (e.g., getByRole, getByLabelText) instead of CSS selectors or getByTestId in Storybook play functions.Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{tsx} : Use consistent component structure: import React, Slot, cva, cn utility, and define variants using CVALearnt from: jaruesink PR: lambda-curry/forms#14 File: packages/components/src/remix/remix-textarea.tsx:10-15 Timestamp: 2024-11-26T05:28:16.321Z Learning: When reviewing components like `RemixTextarea` in `packages/components/src/remix/`, avoid suggesting to memoize the `components` object with `useMemo` if the performance benefit is minimal.Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/storybook-testing.mdc:0-0 Timestamp: 2025-07-23T12:48:03.192Z Learning: Applies to **/*.stories.tsx : Use accessibility-first queries and test keyboard navigation in stories.
1-1: Import missing essential utilities for component patterns.According to the established component patterns, components should import essential utilities like
cvafor variants andcnfor class name handling, even if not immediately used.Add the missing imports:
-import React, { useEffect, useRef, useState } from 'react'; +import React, { useEffect, useRef, useState } from 'react'; +import { cva } from 'class-variance-authority'; +import { cn } from '@/lib/utils';⛔ Skipped due to learnings
Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{tsx} : Use consistent component structure: import React, Slot, cva, cn utility, and define variants using CVALearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Organize React components with the structure: external imports, internal imports, type definitions, variants, implementation, displayNameLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/{hooks,components}/**/*.{ts,tsx} : Use modern useRef patterns with useCallback for imperative actions in React 19Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/form-component-patterns.mdc:0-0 Timestamp: 2025-07-23T12:46:51.780Z Learning: Applies to packages/components/src/remix-hook-form/**/*.tsx : Use the required imports for Remix Hook Form integration, Zod, and base UI components in form-aware componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/storybook-testing.mdc:0-0 Timestamp: 2025-07-23T12:48:03.192Z Learning: Applies to **/*.stories.tsx : Always include required imports for Storybook interaction testing: `Meta`, `StoryObj`, `expect`, `userEvent`, and `withReactRouterStubDecorator`.Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to {apps,packages}/**/*.{ts,tsx} : Do not use relative imports across packages (e.g., avoid import { TextField } from '../../packages/components/src/remix-hook-form/text-field')Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/{components,hooks}/**/*.{ts,tsx} : Create strongly typed React context values and custom hooks for context consumptionLearnt from: jaruesink PR: lambda-curry/forms#14 File: packages/components/src/remix/remix-textarea.tsx:10-15 Timestamp: 2024-11-26T05:28:16.321Z Learning: When reviewing components like `RemixTextarea` in `packages/components/src/remix/`, avoid suggesting to memoize the `components` object with `useMemo` if the performance benefit is minimal.Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/form-component-patterns.mdc:0-0 Timestamp: 2025-07-23T12:46:51.780Z Learning: Applies to packages/components/src/remix-hook-form/**/*.tsx : Ensure proper accessibility and validation integration in form componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*.{ts,tsx} : Use named exports for components for better tree-shaking (e.g., export const ComponentName = ...; avoid default exports)Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Embrace React 19 ref handling patterns and avoid legacy patterns like forwardRefLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Use ref cleanup functions in React 19 when assigning refsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Use the React 19 use() hook for async operations in componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/form-component-patterns.mdc:0-0 Timestamp: 2025-07-23T12:46:51.780Z Learning: Applies to packages/components/src/remix-hook-form/**/*.tsx : Use React.memo for expensive form componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{tsx} : Use React.memo and React.useMemo for memoizing components and computed class names to optimize performanceLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Use direct ref props in React 19 components instead of forwardRefLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Prefer composition over inheritance in React components
226-226: Follow named export pattern instead of default export.According to learnings, components should use named exports for better tree-shaking.
-export default VariableFontAnimation; +// Remove default export, keep only named export⛔ Skipped due to learnings
Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*.{ts,tsx} : Use named exports for components for better tree-shaking (e.g., export const ComponentName = ...; avoid default exports)Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*.{ts,tsx} : Avoid default exports for componentsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*.{ts,tsx} : Use tree-shaking friendly exportsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*index.{ts,tsx} : Re-export with explicit names and types; avoid mixing default and named exportsLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/{components,hooks}/**/*.{ts,tsx} : Use named exports for components and typesLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/utils/**/*.ts : Use default exports only for single-purpose modulesLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/monorepo-organization.mdc:0-0 Timestamp: 2025-07-23T12:47:17.244Z Learning: Applies to packages/components/src/**/*.{ts,tsx} : Always export both component and props type (e.g., export { ComponentName }; export type { ComponentNameProps };)Learnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{ts,tsx} : Use CSS-only animations with Tailwind CSS for transitions and state changes; do not use external animation librariesLearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/ui-component-patterns.mdc:0-0 Timestamp: 2025-07-06T02:47:43.432Z Learning: Applies to src/components/**/*.{tsx} : Use consistent component structure: import React, Slot, cva, cn utility, and define variants using CVALearnt from: CR PR: lambda-curry/forms#0 File: .cursor/rules/react-typescript-patterns.mdc:0-0 Timestamp: 2025-07-23T12:47:43.342Z Learning: Applies to src/components/**/*.tsx : Organize React components with the structure: external imports, internal imports, type definitions, variants, implementation, displayNameapps/docs/src/experimental/VariableFontAnimation.stories.tsx (1)
4-77: Excellent documentation and meta configuration.The meta configuration follows the clean, minimal approach without global decorators as recommended. The comprehensive documentation and well-configured controls provide excellent developer experience.
| import type { Meta, StoryObj } from '@storybook/react'; | ||
| import { VariableFontAnimation } from './VariableFontAnimation'; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add required imports for comprehensive Storybook testing.
According to established patterns, stories should include imports for interaction testing to serve as both documentation and automated tests.
Add missing testing imports:
import type { Meta, StoryObj } from '@storybook/react';
+import { expect, userEvent, within } from '@storybook/test';
+import { step } from '@storybook/test';
import { VariableFontAnimation } from './VariableFontAnimation';Committable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In apps/docs/src/experimental/VariableFontAnimation.stories.tsx at the top of
the file, add the necessary imports for Storybook interaction testing, such as
'userEvent' from '@storybook/testing-library' and 'expect' from
'@storybook/jest'. This will enable writing interaction tests within the
stories, improving documentation and automated test coverage.
| export const Default: Story = { | ||
| args: { | ||
| text: 'LAMBDA CURRY', | ||
| fontSize: 80, | ||
| maxInfluenceRadius: 120, | ||
| animationSpeed: 0.1, | ||
| distortionIntensity: 1, | ||
| }, | ||
| }; | ||
|
|
||
| export const LargeText: Story = { | ||
| args: { | ||
| text: 'GOOEY', | ||
| fontSize: 120, | ||
| maxInfluenceRadius: 150, | ||
| animationSpeed: 0.08, | ||
| distortionIntensity: 1.5, | ||
| }, | ||
| }; | ||
|
|
||
| export const SubtleEffect: Story = { | ||
| args: { | ||
| text: 'Subtle Animation', | ||
| fontSize: 60, | ||
| maxInfluenceRadius: 80, | ||
| animationSpeed: 0.15, | ||
| distortionIntensity: 0.5, | ||
| }, | ||
| }; | ||
|
|
||
| export const IntenseDistortion: Story = { | ||
| args: { | ||
| text: 'EXTREME', | ||
| fontSize: 100, | ||
| maxInfluenceRadius: 200, | ||
| animationSpeed: 0.05, | ||
| distortionIntensity: 2.5, | ||
| }, | ||
| }; | ||
|
|
||
| export const CustomMessage: Story = { | ||
| args: { | ||
| text: 'HELLO WORLD', | ||
| fontSize: 70, | ||
| maxInfluenceRadius: 100, | ||
| animationSpeed: 0.12, | ||
| distortionIntensity: 1.2, | ||
| }, | ||
| }; | ||
|
|
||
| export const SmallText: Story = { | ||
| args: { | ||
| text: 'Variable Fonts Rock!', | ||
| fontSize: 40, | ||
| maxInfluenceRadius: 60, | ||
| animationSpeed: 0.2, | ||
| distortionIntensity: 0.8, | ||
| }, | ||
| }; | ||
|
|
||
| // Interactive playground story | ||
| export const Playground: Story = { | ||
| args: { | ||
| text: 'PLAY WITH ME', | ||
| fontSize: 90, | ||
| maxInfluenceRadius: 140, | ||
| animationSpeed: 0.1, | ||
| distortionIntensity: 1.3, | ||
| }, | ||
| parameters: { | ||
| docs: { | ||
| description: { | ||
| story: 'Use the controls below to experiment with different settings and see how they affect the animation!', | ||
| }, | ||
| }, | ||
| }, | ||
| }; |
There was a problem hiding this comment.
💡 Verification agent
🧩 Analysis chain
Add play functions for interaction testing and accessibility.
Stories should serve as both documentation and automated tests. Consider adding play functions to test user interactions and accessibility.
Add interactive testing to stories:
export const Default: Story = {
args: {
text: 'LAMBDA CURRY',
fontSize: 80,
maxInfluenceRadius: 120,
animationSpeed: 0.1,
distortionIntensity: 1,
},
+ play: async ({ canvasElement, step }) => {
+ const canvas = within(canvasElement);
+
+ await step('Verify component renders', async () => {
+ const textContainer = await canvas.findByRole('generic');
+ await expect(textContainer).toBeInTheDocument();
+ });
+
+ await step('Test mouse interaction', async () => {
+ const textContainer = canvas.getByText('LAMBDA CURRY');
+ await userEvent.hover(textContainer);
+ // Verify font variations are applied (check CSS custom properties)
+ });
+
+ await step('Test keyboard accessibility', async () => {
+ // Test keyboard navigation if applicable
+ await userEvent.tab();
+ });
+ },
};Add similar testing patterns to other stories, especially the Playground story for comprehensive interaction testing.
🏁 Script executed:
#!/bin/bash
# Check for existing play functions in the story file
rg -n "play\s*:" apps/docs/src/experimental/VariableFontAnimation.stories.tsx || echo "No play functions found"Length of output: 136
Add play functions to enable interaction testing and accessibility
I ran a search and confirmed there are no play: functions in apps/docs/src/experimental/VariableFontAnimation.stories.tsx. To align with our Storybook testing guidelines, each story should include a play function that:
- Uses the three-phase pattern (initial render, interaction, accessibility/navigation).
- Leverages semantic queries (
findByText,getByRole, etc.) over CSS selectors. - Organizes steps via the
stephelper for clear, debuggable interactions.
Locations to update:
• apps/docs/src/experimental/VariableFontAnimation.stories.tsx (all story exports)
Suggested diff for the Default story:
export const Default: Story = {
args: {
text: 'LAMBDA CURRY',
fontSize: 80,
maxInfluenceRadius: 120,
animationSpeed: 0.1,
distortionIntensity: 1,
},
+ play: async ({ canvasElement, step }) => {
+ const canvas = within(canvasElement);
+
+ await step('Initial render', async () => {
+ const textEl = await canvas.findByText('LAMBDA CURRY');
+ expect(textEl).toBeInTheDocument();
+ });
+
+ await step('Hover to trigger animation', async () => {
+ const textEl = canvas.getByText('LAMBDA CURRY');
+ await userEvent.hover(textEl);
+ // TODO: assert CSS custom property changes or style updates
+ });
+
+ await step('Keyboard navigation', async () => {
+ await userEvent.tab();
+ // TODO: assert focus styles or accessibility behavior
+ });
+ },
};Apply the same pattern to the other story variants (including Playground) to ensure each has automated interaction and accessibility tests.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export const Default: Story = { | |
| args: { | |
| text: 'LAMBDA CURRY', | |
| fontSize: 80, | |
| maxInfluenceRadius: 120, | |
| animationSpeed: 0.1, | |
| distortionIntensity: 1, | |
| }, | |
| }; | |
| export const LargeText: Story = { | |
| args: { | |
| text: 'GOOEY', | |
| fontSize: 120, | |
| maxInfluenceRadius: 150, | |
| animationSpeed: 0.08, | |
| distortionIntensity: 1.5, | |
| }, | |
| }; | |
| export const SubtleEffect: Story = { | |
| args: { | |
| text: 'Subtle Animation', | |
| fontSize: 60, | |
| maxInfluenceRadius: 80, | |
| animationSpeed: 0.15, | |
| distortionIntensity: 0.5, | |
| }, | |
| }; | |
| export const IntenseDistortion: Story = { | |
| args: { | |
| text: 'EXTREME', | |
| fontSize: 100, | |
| maxInfluenceRadius: 200, | |
| animationSpeed: 0.05, | |
| distortionIntensity: 2.5, | |
| }, | |
| }; | |
| export const CustomMessage: Story = { | |
| args: { | |
| text: 'HELLO WORLD', | |
| fontSize: 70, | |
| maxInfluenceRadius: 100, | |
| animationSpeed: 0.12, | |
| distortionIntensity: 1.2, | |
| }, | |
| }; | |
| export const SmallText: Story = { | |
| args: { | |
| text: 'Variable Fonts Rock!', | |
| fontSize: 40, | |
| maxInfluenceRadius: 60, | |
| animationSpeed: 0.2, | |
| distortionIntensity: 0.8, | |
| }, | |
| }; | |
| // Interactive playground story | |
| export const Playground: Story = { | |
| args: { | |
| text: 'PLAY WITH ME', | |
| fontSize: 90, | |
| maxInfluenceRadius: 140, | |
| animationSpeed: 0.1, | |
| distortionIntensity: 1.3, | |
| }, | |
| parameters: { | |
| docs: { | |
| description: { | |
| story: 'Use the controls below to experiment with different settings and see how they affect the animation!', | |
| }, | |
| }, | |
| }, | |
| }; | |
| export const Default: Story = { | |
| args: { | |
| text: 'LAMBDA CURRY', | |
| fontSize: 80, | |
| maxInfluenceRadius: 120, | |
| animationSpeed: 0.1, | |
| distortionIntensity: 1, | |
| }, | |
| play: async ({ canvasElement, step }) => { | |
| const canvas = within(canvasElement); | |
| await step('Initial render', async () => { | |
| const textEl = await canvas.findByText('LAMBDA CURRY'); | |
| expect(textEl).toBeInTheDocument(); | |
| }); | |
| await step('Hover to trigger animation', async () => { | |
| const textEl = canvas.getByText('LAMBDA CURRY'); | |
| await userEvent.hover(textEl); | |
| // TODO: assert CSS custom property changes or style updates | |
| }); | |
| await step('Keyboard navigation', async () => { | |
| await userEvent.tab(); | |
| // TODO: assert focus styles or accessibility behavior | |
| }); | |
| }, | |
| }; |
🤖 Prompt for AI Agents
In apps/docs/src/experimental/VariableFontAnimation.stories.tsx from lines 82 to
158, each story export lacks a play function for interaction and accessibility
testing. Add a play function to every story that follows the three-phase
pattern: initial render verification, user interaction simulation, and
accessibility/navigation checks. Use semantic queries like findByText or
getByRole instead of CSS selectors, and organize the steps with the step helper
for clarity and debuggability. Implement this pattern consistently across all
story exports including Default, LargeText, SubtleEffect, IntenseDistortion,
CustomMessage, SmallText, and Playground.
| export const VariableFontAnimation: React.FC<VariableFontAnimationProps> = ({ | ||
| text = 'LAMBDA CURRY', | ||
| fontSize = 80, | ||
| maxInfluenceRadius = 120, | ||
| animationSpeed = 0.1, | ||
| distortionIntensity = 1, | ||
| className = '', | ||
| }) => { |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Component structure should follow established patterns.
The component doesn't follow the recommended structure from learnings: external imports, internal imports, type definitions, variants (using CVA), implementation, displayName.
Consider restructuring to use CVA for variants:
+const variableFontVariants = cva(
+ "font-recursive font-normal leading-tight cursor-default select-none flex justify-center items-center min-h-[200px] p-10 rounded-[20px] overflow-hidden relative",
+ {
+ variants: {
+ size: {
+ small: "text-2xl min-h-[150px] p-5",
+ medium: "text-5xl",
+ large: "text-8xl min-h-[250px] p-12",
+ },
+ theme: {
+ default: "bg-gradient-to-br from-indigo-400 to-purple-600",
+ warm: "bg-gradient-to-br from-orange-400 to-red-600",
+ cool: "bg-gradient-to-br from-blue-400 to-cyan-600",
+ }
+ },
+ defaultVariants: {
+ size: "medium",
+ theme: "default",
+ }
+ }
+);Committable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In apps/docs/src/experimental/VariableFontAnimation.tsx around lines 12 to 19,
the component structure does not follow the recommended pattern of organizing
external imports, internal imports, type definitions, variants using CVA,
implementation, and displayName. Refactor the file to reorder these sections
accordingly and define variants using the CVA utility before the component
implementation to maintain consistency and clarity.
1 participant
🎯 Overview
This PR adds an experimental Variable Font Animation component that creates a mesmerizing "gooey" text distortion effect, perfect for showcasing the power of variable fonts and modern CSS animations!
✨ What's New
🔤 VariableFontAnimation Component
requestAnimationFramefor smooth 60fps performance🎛️ Comprehensive Storybook Stories
🛠️ Technical Implementation
Font Technology
weight(300-1000),slant(0 to -15°),casual(0-1)Animation System
Performance Optimizations
requestAnimationFramefor smooth animations🎨 Visual Features
🎮 Interactive Controls
All parameters are configurable via Storybook controls:
🚀 Demo Variations
🎯 Use Cases
Perfect for:
🔍 How to Test
cd apps/docs && yarn dev📱 Browser Support
This is a fun proof-of-concept showcasing the creative possibilities of variable fonts and modern CSS animations! 🎨✨
💻 View my work • 🚫 Ban all checks • About Codegen
Summary by CodeRabbit
New Features
Documentation