example: add lazy-loading (#135)

* example: add lazy-loading closes #129 * updates
intlify · Oct 4, 2020 · a7d2147 · a7d2147
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diff --git a/examples/lazy-loading/vite/.gitignore b/examples/lazy-loading/vite/.gitignore
@@ -0,0 +1,4 @@
+node_modules
+.DS_Store
+dist
+*.local
diff --git a/examples/lazy-loading/vite/index.html b/examples/lazy-loading/vite/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Lazy loading exaple</title>
+  </head>
+  <body>
+    <div id="app"></div>
+    <script type="module" src="/src/main.ts"></script>
+  </body>
+</html>
diff --git a/examples/lazy-loading/vite/package.json b/examples/lazy-loading/vite/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "lazy-loading-vite",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build"
+  },
+  "dependencies": {
+    "vue": "^3.0.0",
+    "vue-i18n": "^9.0.0-beta.4",
+    "vue-router": "^4.0.0-beta.13"
+  },
+  "devDependencies": {
+    "@vue/compiler-sfc": "^3.0.0",
+    "vite": "^1.0.0-rc.4"
+  }
+}
diff --git a/examples/lazy-loading/vite/public/.gitkeep b/examples/lazy-loading/vite/public/.gitkeep
diff --git a/examples/lazy-loading/vite/src/App.vue b/examples/lazy-loading/vite/src/App.vue
@@ -0,0 +1,57 @@
+<template>
+  <nav>
+    <div class="navigation">
+      <router-link :to="{ name: 'home', params: { locale } }">
+        {{ $t('navigations.home') }}
+      </router-link>
+      |
+      <router-link :to="{ name: 'about', params: { locale } }">
+        {{ $t('navigations.about') }}
+      </router-link>
+    </div>
+    <form class="language">
+      <label>{{ $t('labels.language') }}</label>
+      <select v-model="locale">
+        <option value="en">en</option>
+        <option value="ja">ja</option>
+      </select>
+    </form>
+  </nav>
+  <router-view></router-view>
+</template>
+
+<script>
+import { ref, watch, defineComponent } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+
+export default defineComponent({
+  name: 'App',
+  setup() {
+    const locale = ref('en')
+    const router = useRouter()
+    const route = useRoute()
+
+    // when change the locale, go to locale route
+    watch(locale, val => {
+      router.push({
+        name: route.name,
+        params: { locale: val }
+      })
+    })
+
+    return { locale }
+  }
+})
+</script>
+
+<style scoped>
+nav {
+  display: inline-flex;
+}
+.navigation {
+  margin-right: 1rem;
+}
+.language label {
+  margin-right: 1rem;
+}
+</style>
diff --git a/examples/lazy-loading/vite/src/assets/.gitkeep b/examples/lazy-loading/vite/src/assets/.gitkeep
diff --git a/examples/lazy-loading/vite/src/components/.gitkeep b/examples/lazy-loading/vite/src/components/.gitkeep
diff --git a/examples/lazy-loading/vite/src/i18n.ts b/examples/lazy-loading/vite/src/i18n.ts
@@ -0,0 +1,28 @@
+import { createI18n } from 'vue-i18n'
+import type { I18n, Locale } from 'vue-i18n'
+
+import en from './locales/en'
+
+export function setupI18n(locale: Locale = 'en'): I18n {
+  const i18n = createI18n({
+    locale,
+    fallbackLocale: 'en',
+    messages: {
+      en
+    }
+  }) as I18n
+  setI18nLanguage(i18n, locale)
+  return i18n
+}
+
+export function setI18nLanguage(i18n: I18n, locale: Locale): void {
+  i18n.global.locale.value = locale
+  /**
+   * NOTE:
+   * If you need to specify the language setting for headers, such as the `fetch` API, set it here.
+   * The following is an example for axios.
+   *
+   * axios.defaults.headers.common['Accept-Language'] = locale
+   */
+  document.querySelector('html').setAttribute('lang', locale)
+}
diff --git a/examples/lazy-loading/vite/src/index.css b/examples/lazy-loading/vite/src/index.css
@@ -0,0 +1,6 @@
+#app {
+  font-family: Avenir, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  color: #2c3e50;
+}
diff --git a/examples/lazy-loading/vite/src/locales/en.js b/examples/lazy-loading/vite/src/locales/en.js
@@ -0,0 +1,13 @@
+export default {
+  pages: {
+    home: 'This page is home page',
+    about: 'This page is about page'
+  },
+  navigations: {
+    home: 'Home',
+    about: 'About'
+  },
+  labels: {
+    language: 'Languages'
+  }
+}
diff --git a/examples/lazy-loading/vite/src/locales/ja.js b/examples/lazy-loading/vite/src/locales/ja.js
@@ -0,0 +1,13 @@
+export default {
+  pages: {
+    home: 'このページはホームです。',
+    about: 'このページはアバウトページです。'
+  },
+  navigations: {
+    home: 'ホーム',
+    about: 'アバウト'
+  },
+  labels: {
+    language: '言語'
+  }
+}
diff --git a/examples/lazy-loading/vite/src/main.ts b/examples/lazy-loading/vite/src/main.ts
@@ -0,0 +1,13 @@
+import { createApp } from 'vue'
+import App from './App.vue'
+import './index.css'
+import { setupRouter } from './router'
+import { setupI18n } from './i18n'
+
+const i18n = setupI18n()
+const router = setupRouter(i18n)
+
+const app = createApp(App)
+app.use(i18n)
+app.use(router)
+app.mount('#app')
diff --git a/examples/lazy-loading/vite/src/pages/About.vue b/examples/lazy-loading/vite/src/pages/About.vue
@@ -0,0 +1,3 @@
+<template>
+  <h2>{{ $t('pages.about') }}</h2>
+</template>
diff --git a/examples/lazy-loading/vite/src/pages/Home.vue b/examples/lazy-loading/vite/src/pages/Home.vue
@@ -0,0 +1,3 @@
+<template>
+  <h2>{{ $t('pages.home') }}</h2>
+</template>
diff --git a/examples/lazy-loading/vite/src/router.ts b/examples/lazy-loading/vite/src/router.ts
@@ -0,0 +1,59 @@
+import { createRouter, createWebHistory } from 'vue-router'
+import { setI18nLanguage } from './i18n'
+import type { Router, RouteRecordRaw } from 'vue-router'
+import type { I18n, Locale } from 'vue-i18n'
+
+import Home from './pages/Home.vue'
+import About from './pages/About.vue'
+
+export function setupRouter(i18n: I18n): Router {
+  const SUPPORT_LOCALES = ['en', 'ja']
+  const { global: composer } = i18n
+
+  // setup routes
+  const routes: RouteRecordRaw[] = [
+    {
+      path: '/:locale/',
+      name: 'home',
+      component: Home
+    },
+    {
+      path: '/:locale/about',
+      name: 'about',
+      component: About
+    },
+    {
+      path: '/:pathMatch(.*)*',
+      redirect: () => `/${composer.locale.value}`
+    }
+  ]
+
+  // create router instance
+  const router = createRouter({
+    history: createWebHistory(),
+    routes
+  })
+
+  // navigation guards
+  router.beforeEach(async (to, from, next) => {
+    const locale = (to.params as any).locale as Locale
+
+    // check locale
+    if (!SUPPORT_LOCALES.includes(locale)) {
+      return false
+    }
+
+    // load locale messages
+    if (!composer.availableLocales.includes(locale)) {
+      const messages = await import(`./locales/${locale}`)
+      composer.setLocaleMessage(locale, messages.default)
+    }
+
+    // set i18n language
+    setI18nLanguage(i18n, locale)
+
+    return next()
+  })
+
+  return router
+}
diff --git a/examples/lazy-loading/vite/tsconfig.json b/examples/lazy-loading/vite/tsconfig.json
@@ -0,0 +1,76 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "esnext",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "module": "esnext",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    "lib": ["dom", "esnext"],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    // "outDir": "./",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    "moduleResolution": "node",               /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    "types": [
+      "./node_modules/@types",
+      "./node_modules/vite/dist",
+      "./node_modules/vue-i18n/dist"
+    ],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
+    "forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
+
+    "resolveJsonModule": true
+  },
+  "exclude": ["node_modules", "dist"]
+}