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- Eliminate dual-controller sync that caused lag and cursor issues: PlaygroundPage now uses HighlightingController directly as the single source of truth - Add result caching to JsonSyntaxHighlighter so cursor movements and selection changes skip re-tokenization entirely - Use pre-allocated const TextStyle instances to reduce GC pressure - Line number gutter only rebuilds when line count changes, not on every keystroke - Fix CI concurrency: cancel-in-progress now only applies to PRs, allowing push-to-main workflows to run to completion Made-with: Cursor
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TextEditingController that overrides buildTextSpan() to return syntax-highlighted spans directly — native cursor, selection and scrolling work out of the box. - **Update project config**: add iOS CocoaPods setup (Podfile + xcconfig includes), documentation cover image, clean up outdated README section, and add .cursor/ to .gitignore. ## Test plan - [x] flutter analyze lib/ — zero issues - [x] flutter test — 111 tests passing - [ ] Manual: open playground, type/edit JSON and confirm cursor, selection and scroll work correctly - [ ] Manual: confirm syntax highlighting colors render (keys blue, strings orange, numbers green)
- Change dart analyze from --fatal-infos to --fatal-warnings so info-level hints do not block the pipeline - Remove unnecessary dart:ui import from integration test - Use function declarations instead of variable assignments in test callbacks to satisfy prefer_function_declarations lint - Remove unused component_parser imports from test files Made-with: Cursor
Golden tests depend on platform-specific font rendering and fail on GitHub Actions runners. Use --exclude-tags=golden in the test step. Made-with: Cursor
Add tags: 'golden' to the landing page golden test widget, allowing the CI to skip it with --exclude-tags=golden. Made-with: Cursor
Declare the 'golden' test tag so dart test recognizes it when using --exclude-tags filtering. Made-with: Cursor
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Summary
HighlightingControlleras the sole source of truth — zero sync overhead.JsonSyntaxHighlighternow caches the last result, so cursor movements, selection changes and focus events skip re-tokenization entirely.cancel-in-progressnow only applies to pull requests, preventing push-to-main workflows from being cancelled when multiple merges happen in sequence.Test plan
flutter analyze lib/— zero issuesflutter test— 111 tests passing