Add bespoke sync plugin #145
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,5 @@ | ||
| import autoprefixer from 'autoprefixer' | ||
| import builtinModules from 'builtin-modules' | ||
| import cssnano from 'cssnano' | ||
| import path from 'path' | ||
| import postcssUrl from 'postcss-url' | ||
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@@ -7,28 +8,25 @@ import json from 'rollup-plugin-json' | |
| import nodeResolve from 'rollup-plugin-node-resolve' | ||
| import postcss from 'rollup-plugin-postcss' | ||
| import pugPlugin from 'rollup-plugin-pug' | ||
| import replace from 'rollup-plugin-replace' | ||
| import { terser } from 'rollup-plugin-terser' | ||
| import typescript from 'rollup-plugin-typescript' | ||
| import url from 'rollup-plugin-url' | ||
| import { dependencies } from './package.json' | ||
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| const external = [ | ||
| ...Object.keys(dependencies), | ||
| 'chrome-launcher/dist/chrome-finder', | ||
| 'yargs/yargs', | ||
| ] | ||
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| const plugins = (opts = {}) => [ | ||
| json({ preferConst: true }), | ||
| nodeResolve({ | ||
| browser: !!opts.browser, | ||
| mainFields: ['module', 'jsnext:main', 'main'], | ||
| }), | ||
| replace({ 'process.env.NODE_ENV': JSON.stringify('production') }), | ||
|
There was a problem hiding this comment. The bundled See also: ai/nanoid#127 (comment) |
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| commonjs(), | ||
| typescript({ resolveJsonModule: false }), | ||
| postcss({ | ||
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@@ -48,28 +46,34 @@ const plugins = [ | |
| !process.env.ROLLUP_WATCH && terser(), | ||
| ] | ||
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| const browser = { | ||
| external, | ||
| plugins: plugins({ browser: true }), | ||
| } | ||
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| const cli = { | ||
| external: [...builtinModules, ...external], | ||
| plugins: plugins(), | ||
| } | ||
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| export default [ | ||
| { | ||
| ...browser, | ||
| input: 'src/templates/bespoke.js', | ||
| output: { file: 'lib/bespoke.js', format: 'iife' }, | ||
| }, | ||
| { | ||
| ...browser, | ||
| input: 'src/templates/watch.js', | ||
| output: { file: 'lib/watch.js', format: 'iife' }, | ||
| }, | ||
| { | ||
| ...browser, | ||
| input: 'src/server/server-index.js', | ||
| output: { file: 'lib/server/server-index.js', format: 'iife' }, | ||
| }, | ||
| { | ||
| ...cli, | ||
| input: 'src/marp-cli.ts', | ||
| output: { exports: 'named', file: 'lib/marp-cli.js', format: 'cjs' }, | ||
| }, | ||
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||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| import nanoid from 'nanoid' | ||
| import { FragmentEvent } from './fragments' | ||
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| export interface BespokeSyncOption { | ||
| key?: string | ||
| } | ||
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| export interface BespokeSyncState { | ||
| reference: number | ||
| index: number | ||
| fragmentIndex: number | ||
| } | ||
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| export default function bespokeSync(opts: BespokeSyncOption = {}) { | ||
| const key = opts.key || nanoid() | ||
| const storageKey = `bespoke-marp-sync-${key}` | ||
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| const getState = (): Partial<BespokeSyncState> => { | ||
| const stateJSON = localStorage.getItem(storageKey) | ||
| if (!stateJSON) return Object.create(null) | ||
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| return JSON.parse(stateJSON) | ||
| } | ||
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| const setState = ( | ||
| updater: (prevState: Partial<BespokeSyncState>) => Partial<BespokeSyncState> | ||
| ) => { | ||
| const currentState = getState() | ||
| const newState = { ...currentState, ...updater(currentState) } | ||
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| localStorage.setItem(storageKey, JSON.stringify(newState)) | ||
| return newState | ||
| } | ||
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| // Initialize or increase reference count | ||
| setState(prev => ({ reference: (prev.reference || 0) + 1 })) | ||
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| return deck => { | ||
| Object.defineProperty(deck, 'syncKey', { | ||
| value: key, | ||
| enumerable: true, | ||
| }) | ||
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| // Update storage value to store current page and fragment index | ||
| // (Wrap by setTimeout to skip fragment event for initialization) | ||
| setTimeout(() => { | ||
| deck.on('fragment', (e: FragmentEvent) => { | ||
| setState(() => ({ index: e.index, fragmentIndex: e.fragmentIndex })) | ||
| }) | ||
| }, 0) | ||
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| // Listen "storage" event | ||
| window.addEventListener('storage', e => { | ||
| if (e.key === storageKey && e.oldValue && e.newValue) { | ||
| const prev: Partial<BespokeSyncState> = JSON.parse(e.oldValue) | ||
| const current: Partial<BespokeSyncState> = JSON.parse(e.newValue) | ||
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| if ( | ||
| prev.index !== current.index || | ||
| prev.fragmentIndex !== current.fragmentIndex | ||
| ) { | ||
| deck.slide(current.index, { fragment: current.fragmentIndex }) | ||
| } | ||
| } | ||
| }) | ||
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| deck.on('destroy', () => { | ||
| const { reference } = getState() | ||
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| if (reference === undefined || reference <= 1) { | ||
| localStorage.removeItem(storageKey) | ||
| } else { | ||
| setState(() => ({ reference: reference - 1 })) | ||
| } | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| export const readQuery = (name: string) => | ||
| new URLSearchParams(location.search).get(name) |
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We have to use Bespoke.js from GitHub directly because
Bespoke.prototype.destroy()is not defined in the latest release on npm.