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feat: add zebra-stripes component. #424
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<!--rehype:ignore:start--> | ||
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# Zebra Stripes Extensions | ||
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<!--rehype:ignore:end--> | ||
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[![npm version](https://img.shields.io/npm/v/@uiw/codemirror-extensions-mentions.svg)](https://www.npmjs.com/package/@uiw/codemirror-extensions-mentions) | ||
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Styles alternating lines for CodeMirror6. | ||
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[![Zebra Stripes Extensions](https://user-images.githubusercontent.com/1680273/205496628-e7e6f83f-18e9-4bff-8bc8-71a913c60687.png)](https://uiwjs.github.io/react-codemirror/#/extensions/mentions) | ||
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## Install | ||
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```bash | ||
npm install @uiw/codemirror-zebra-stripes --save | ||
``` | ||
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## Usage | ||
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```jsx | ||
import CodeMirror from '@uiw/react-codemirror'; | ||
import { zebraStripes } from '@uiw/codemirror-zebra-stripes'; | ||
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function App() { | ||
return <CodeMirror value="" height="200px" extensions={[zebraStripes({ step: 2 })]} />; | ||
} | ||
export default App; | ||
``` | ||
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```jsx | ||
import CodeMirror from '@uiw/react-codemirror'; | ||
import { zebraStripes } from '@uiw/codemirror-zebra-stripes'; | ||
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function App() { | ||
return ( | ||
<CodeMirror | ||
value="" | ||
height="200px" | ||
extensions={[ | ||
zebraStripes({ | ||
lineNumber: [1, [3, 6], 10], | ||
lightColor: '#aca2ff33', | ||
darkColor: '#aca2ff40', | ||
}), | ||
]} | ||
/> | ||
); | ||
} | ||
export default App; | ||
``` | ||
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```js | ||
import { EditorView } from '@codemirror/view'; | ||
import { EditorState } from '@codemirror/state'; | ||
import { mentions } from '@uiw/codemirror-zebra-stripes'; | ||
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const state = EditorState.create({ | ||
doc: 'my source code', | ||
extensions: [zebraStripes({ step: 2 })], | ||
}); | ||
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const view = new EditorView({ | ||
parent: document.querySelector('#editor'), | ||
state, | ||
}); | ||
``` | ||
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## API | ||
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```ts | ||
import { Extension } from '@codemirror/state'; | ||
export declare type ZebraStripesOptions = { | ||
step?: number | null; | ||
lightColor?: string; | ||
darkColor?: string; | ||
/** | ||
* @example `[1,[2,6], 10]` | ||
*/ | ||
lineNumber?: (number | number[])[] | null; | ||
}; | ||
export declare function zebraStripes(options?: ZebraStripesOptions): Extension; | ||
``` | ||
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## Contributors | ||
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As always, thanks to our amazing contributors! | ||
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<a href="https://github.com/uiwjs/react-codemirror/graphs/contributors"> | ||
<img src="https://uiwjs.github.io/react-codemirror/CONTRIBUTORS.svg" /> | ||
</a> | ||
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Made with [github-action-contributors](https://github.com/jaywcjlove/github-action-contributors). | ||
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## License | ||
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Licensed under the MIT License. |
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{ | ||
"name": "@uiw/codemirror-extensions-zebra-stripes", | ||
"version": "4.15.1", | ||
"description": "Styles alternating lines for CodeMirror6.", | ||
"homepage": "https://uiwjs.github.io/react-codemirror/#/extensions/zebra-stripes", | ||
"author": "kenny wong <wowohoo@qq.com>", | ||
"license": "MIT", | ||
"main": "./cjs/index.js", | ||
"module": "./esm/index.js", | ||
"scripts": { | ||
"watch": "tsbb watch", | ||
"build": "tsbb build" | ||
}, | ||
"repository": { | ||
"type": "git", | ||
"url": "https://github.com/uiwjs/react-codemirror.git" | ||
}, | ||
"files": [ | ||
"src", | ||
"esm", | ||
"cjs" | ||
], | ||
"peerDependencies": { | ||
"@codemirror/state": ">=6.0.0", | ||
"@codemirror/view": ">=6.0.0" | ||
}, | ||
"devDependencies": { | ||
"@codemirror/state": "^6.1.0", | ||
"@codemirror/view": "^6.0.0" | ||
}, | ||
"keywords": [ | ||
"codemirror", | ||
"codemirror6", | ||
"zebra-stripes", | ||
"extensions", | ||
"ide", | ||
"code" | ||
], | ||
"jest": { | ||
"coverageReporters": [ | ||
"lcov", | ||
"json-summary" | ||
] | ||
} | ||
} |
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import { Extension } from '@codemirror/state'; | ||
import { Facet, RangeSetBuilder } from '@codemirror/state'; | ||
import { EditorView, Decoration, ViewPlugin, DecorationSet, ViewUpdate } from '@codemirror/view'; | ||
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const lineNumber = Facet.define({ | ||
combine: (values) => { | ||
return values.length && Array.isArray(values) ? values.flat() : []; | ||
}, | ||
}); | ||
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const stepSize = Facet.define({ | ||
combine: (values) => { | ||
return values.length && Array.isArray(values) ? Math.min(...values) : 2; | ||
}, | ||
}); | ||
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const stripe = Decoration.line({ | ||
attributes: { class: 'cm-zebra-stripe' }, | ||
}); | ||
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function stripeDeco(view: EditorView) { | ||
const step = view.state.facet(stepSize); | ||
const num = view.state.facet(lineNumber); | ||
const builder = new RangeSetBuilder<Decoration>(); | ||
for (let { from, to } of view.visibleRanges) { | ||
for (let pos = from; pos <= to; ) { | ||
let line = view.state.doc.lineAt(pos); | ||
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if (line.number % step === 0 && num.length === 0) { | ||
builder.add(line.from, line.from, stripe); | ||
} | ||
if (num.length > 0 && num.flat().includes(line.number)) { | ||
builder.add(line.from, line.from, stripe); | ||
} | ||
pos = line.to + 1; | ||
} | ||
} | ||
return builder.finish(); | ||
} | ||
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const showStripes = ViewPlugin.fromClass( | ||
class { | ||
decorations: DecorationSet; | ||
constructor(view: EditorView) { | ||
this.decorations = stripeDeco(view); | ||
} | ||
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update(update: ViewUpdate) { | ||
this.decorations = stripeDeco(update.view); | ||
// if (update.docChanged || update.viewportChanged) { | ||
// this.decorations = stripeDeco(update.view); | ||
// } | ||
} | ||
}, | ||
{ | ||
decorations: (v) => v.decorations, | ||
}, | ||
); | ||
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const baseTheme = (opt: Pick<Partial<ZebraStripesOptions>, 'lightColor' | 'darkColor'> = {}) => { | ||
return EditorView.baseTheme({ | ||
'&light .cm-zebra-stripe': { backgroundColor: opt.lightColor || '#eef6ff' }, | ||
'&dark .cm-zebra-stripe': { backgroundColor: opt.darkColor || '#3a404d' }, | ||
}); | ||
}; | ||
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export type ZebraStripesOptions = { | ||
step?: number | null; | ||
lightColor?: string; | ||
darkColor?: string; | ||
/** | ||
* @example `[1,[2,6], 10]` | ||
*/ | ||
lineNumber?: (number | number[])[] | null; | ||
}; | ||
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const range = (start: number, stop: number, step: number) => | ||
Array.from({ length: (stop - start) / step + 1 }, (_, i) => start + i * step); | ||
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export function zebraStripes(options: ZebraStripesOptions = {}): Extension { | ||
const zebraStripeTheme = baseTheme({ lightColor: options.lightColor, darkColor: options.darkColor }); | ||
if (options.lineNumber && Array.isArray(options.lineNumber)) { | ||
options.step = null; | ||
options.lineNumber = options.lineNumber.map((item) => { | ||
if (Array.isArray(item) && typeof item[0] === 'number' && typeof item[1] === 'number') { | ||
return range(item[0], item[1], 1); | ||
} | ||
return item; | ||
}); | ||
} else { | ||
options.lineNumber = null; | ||
} | ||
return [ | ||
options.lineNumber === null ? [] : lineNumber.of(options.lineNumber || []), | ||
options.step === null ? [] : stepSize.of(options.step || 2), | ||
showStripes, | ||
zebraStripeTheme, | ||
]; | ||
} |
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{ | ||
"extends": "../../tsconfig", | ||
"include": ["src"], | ||
"compilerOptions": { | ||
"outDir": "./cjs", | ||
"baseUrl": ".", | ||
"noEmit": false | ||
} | ||
} |
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import data from '@uiw/codemirror-extensions-zebra-stripes/README.md'; | ||
import { zebraStripes } from '@uiw/codemirror-extensions-zebra-stripes'; | ||
import CodeMirror, { ReactCodeMirrorProps } from '@uiw/react-codemirror'; | ||
import { useEffect, useState } from 'react'; | ||
import { langs } from '@uiw/codemirror-extensions-langs'; | ||
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export const LineNumberDemo = () => { | ||
const dark = document.documentElement.getAttribute('data-color-mode'); | ||
const [theme, setTheme] = useState<ReactCodeMirrorProps['theme']>(dark === 'dark' ? 'dark' : 'light'); | ||
useEffect(() => { | ||
setTheme(document.documentElement.getAttribute('data-color-mode') === 'dark' ? 'dark' : 'light'); | ||
document.addEventListener('colorschemechange', (e) => { | ||
setTheme(e.detail.colorScheme as ReactCodeMirrorProps['theme']); | ||
}); | ||
}, []); | ||
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return ( | ||
<CodeMirror | ||
value={data.source} | ||
theme={theme} | ||
height="300px" | ||
style={{ margin: '0 0 23px 0' }} | ||
extensions={[ | ||
langs.markdown(), | ||
zebraStripes({ lineNumber: [1, [3, 6], 10], lightColor: '#aca2ff33', darkColor: '#aca2ff40' }), | ||
]} | ||
/> | ||
); | ||
}; |
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