initialized lesson04 vuex

Author: zhangzhenfei

README.md

@@ -962,3 +962,85 @@ methods: {
   Clear completed
 </button>
 ````
+## lesson04.vue-vuex
+
+> Vuex 是一个专为 Vue.js 应用程序开发的状态管理模式。它采用集中式存储管理应用的所有组件的状态，并以相应的规则保证状态以一种可预测的方式发生变化。Vuex 也集成到 Vue 的官方调试工具 devtools extension，提供了诸如零配置的 time-travel 调试、状态快照导入导出等高级调试功能。
+
+这一节教程中，我们基于`03.vue-todos`将把`vue`的状态管理插件`vuex`整合进来，复制项目`03.vue-todos`改名为`04.vue-vuex-todos`
+
+加入vuex插件库
+````
+cnpm i vuex --save
+````
+
+为了不影响`lesson03`的`store`实现，我们在`src`中新建了一个`vuex-store`文件夹，作为vuex的store存储库
+`src/vuex-store/index.js`
+````javascript
+import Vue from 'vue'
+import Vuex from 'vuex'
+import uuid from 'uuid'
+
+Vue.use(Vuex)
+
+export default new Vuex.Store({
+  state: {
+    todos: [] // 存储所有todos
+  },
+  mutations: {
+    ADD_TODO (state, todoContent) {
+      state.todos.push({
+        id: uuid(),
+        title: todoContent,
+        completed: false
+      })
+    },
+    REMOVE_TODO (state, todo) {
+      var todos = state.todos
+      todos.splice(todos.indexOf(todo), 1)
+    },
+    COMPLETE_TODO (state, todo) {
+      todo.completed = !todo.completed
+    }
+  },
+  actions: {
+    addTodo ({ commit }, todoContent) {
+      commit('ADD_TODO', todoContent)
+    },
+    removeTodo ({ commit }, todo) {
+      commit('REMOVE_TODO', todo)
+    },
+    completeTodo ({ commit }, todo) {
+      commit('COMPLETE_TODO', todo)
+    }
+
+  },
+  getters: {
+    todos: state => state.todos.filter((todo) => { return !todo.completed }),
+    completedTodos: state => state.todos.filter((todo) => { return todo.completed })
+  }
+
+})
+````
+
+> Vuex 通过 store 选项，提供了一种机制将状态从根组件『注入』到每一个子组件中（需调用 Vue.use(Vuex)）
+
+src/main.js
+````javascript
+// The Vue build version to load with the `import` command
+// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
+import Vue from 'vue'
+import App from './App'
+import router from './router'
+import store from './vuex-store/index'
+
+Vue.config.productionTip = false
+
+/* eslint-disable no-new */
+new Vue({
+  el: '#app',
+  router,
+  store,
+  template: '<App/>',
+  components: { App }
+})
+````

lesson/04.vue-vuex-todos/.babelrc

@@ -0,0 +1,14 @@
+{
+  "presets": [
+    ["env", { "modules": false }],
+    "stage-2"
+  ],
+  "plugins": ["transform-runtime"],
+  "comments": false,
+  "env": {
+    "test": {
+      "presets": ["env", "stage-2"],
+      "plugins": [ "istanbul" ]
+    }
+  }
+}

lesson/04.vue-vuex-todos/.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true

lesson/04.vue-vuex-todos/.eslintignore

@@ -0,0 +1,2 @@
+build/*.js
+config/*.js

lesson/04.vue-vuex-todos/.eslintrc.js

@@ -0,0 +1,31 @@
+// http://eslint.org/docs/user-guide/configuring
+
+module.exports = {
+  root: true,
+  parser: 'babel-eslint',
+  parserOptions: {
+    sourceType: 'module'
+  },
+  env: {
+    browser: true
+  },
+  // https://github.com/feross/standard/blob/master/RULES.md#javascript-standard-s
+  // tyle
+  extends: 'standard',
+  exclude: [
+    /node_modules/ // 排除第三方文件
+  ],
+  // required to lint *.vue files
+  plugins: ['html'],
+  // add your custom rules here
+  'rules': {
+    // allow paren-less arrow functions
+    'arrow-parens': 0,
+    // allow async-await
+    'generator-star-spacing': 0,
+    // allow debugger during development
+    'no-debugger': process.env.NODE_ENV === 'production'
+      ? 2
+      : 0
+  }
+}

lesson/04.vue-vuex-todos/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+node_modules/
+dist/
+npm-debug.log
+yarn-error.log
+test/unit/coverage
+test/e2e/reports
+selenium-debug.log

lesson/04.vue-vuex-todos/.postcssrc.js

@@ -0,0 +1,8 @@
+// https://github.com/michael-ciniawsky/postcss-load-config
+
+module.exports = {
+  "plugins": {
+    // to edit target browsers: use "browserlist" field in package.json
+    "autoprefixer": {}
+  }
+}

lesson/04.vue-vuex-todos/README.md

@@ -0,0 +1,30 @@
+# 04.vue-vuex-todos
+
+> A Vue.js project
+
+## Build Setup
+
+``` bash
+# install dependencies
+npm install
+
+# serve with hot reload at localhost:8080
+npm run dev
+
+# build for production with minification
+npm run build
+
+# build for production and view the bundle analyzer report
+npm run build --report
+
+# run unit tests
+npm run unit
+
+# run e2e tests
+npm run e2e
+
+# run all tests
+npm test
+```
+
+For detailed explanation on how things work, checkout the [guide](http://vuejs-templates.github.io/webpack/) and [docs for vue-loader](http://vuejs.github.io/vue-loader).

lesson/04.vue-vuex-todos/build/build.js

@@ -0,0 +1,35 @@
+require('./check-versions')()
+
+process.env.NODE_ENV = 'production'
+
+var ora = require('ora')
+var rm = require('rimraf')
+var path = require('path')
+var chalk = require('chalk')
+var webpack = require('webpack')
+var config = require('../config')
+var webpackConfig = require('./webpack.prod.conf')
+
+var spinner = ora('building for production...')
+spinner.start()
+
+rm(path.join(config.build.assetsRoot, config.build.assetsSubDirectory), err => {
+  if (err) throw err
+  webpack(webpackConfig, function (err, stats) {
+    spinner.stop()
+    if (err) throw err
+    process.stdout.write(stats.toString({
+      colors: true,
+      modules: false,
+      children: false,
+      chunks: false,
+      chunkModules: false
+    }) + '\n\n')
+
+    console.log(chalk.cyan('  Build complete.\n'))
+    console.log(chalk.yellow(
+      '  Tip: built files are meant to be served over an HTTP server.\n' +
+      '  Opening index.html over file:// won\'t work.\n'
+    ))
+  })
+})

lesson/04.vue-vuex-todos/build/check-versions.js

@@ -0,0 +1,45 @@
+var chalk = require('chalk')
+var semver = require('semver')
+var packageConfig = require('../package.json')
+
+function exec (cmd) {
+  return require('child_process').execSync(cmd).toString().trim()
+}
+
+var versionRequirements = [
+  {
+    name: 'node',
+    currentVersion: semver.clean(process.version),
+    versionRequirement: packageConfig.engines.node
+  },
+  {
+    name: 'npm',
+    currentVersion: exec('npm --version'),
+    versionRequirement: packageConfig.engines.npm
+  }
+]
+
+module.exports = function () {
+  var warnings = []
+  for (var i = 0; i < versionRequirements.length; i++) {
+    var mod = versionRequirements[i]
+    if (!semver.satisfies(mod.currentVersion, mod.versionRequirement)) {
+      warnings.push(mod.name + ': ' +
+        chalk.red(mod.currentVersion) + ' should be ' +
+        chalk.green(mod.versionRequirement)
+      )
+    }
+  }
+
+  if (warnings.length) {
+    console.log('')
+    console.log(chalk.yellow('To use this template, you must update following to modules:'))
+    console.log()
+    for (var i = 0; i < warnings.length; i++) {
+      var warning = warnings[i]
+      console.log('  ' + warning)
+    }
+    console.log()
+    process.exit(1)
+  }
+}

lesson/04.vue-vuex-todos/build/dev-client.js

@@ -0,0 +1,9 @@
+/* eslint-disable */
+require('eventsource-polyfill')
+var hotClient = require('webpack-hot-middleware/client?noInfo=true&reload=true')
+
+hotClient.subscribe(function (event) {
+  if (event.action === 'reload') {
+    window.location.reload()
+  }
+})

lesson/04.vue-vuex-todos/build/dev-server.js

@@ -0,0 +1,91 @@
+require('./check-versions')()
+
+var config = require('../config')
+if (!process.env.NODE_ENV) {
+  process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV)
+}
+
+var opn = require('opn')
+var path = require('path')
+var express = require('express')
+var webpack = require('webpack')
+var proxyMiddleware = require('http-proxy-middleware')
+var webpackConfig = process.env.NODE_ENV === 'testing'
+  ? require('./webpack.prod.conf')
+  : require('./webpack.dev.conf')
+
+// default port where dev server listens for incoming traffic
+var port = process.env.PORT || config.dev.port
+// automatically open browser, if not set will be false
+var autoOpenBrowser = !!config.dev.autoOpenBrowser
+// Define HTTP proxies to your custom API backend
+// https://github.com/chimurai/http-proxy-middleware
+var proxyTable = config.dev.proxyTable
+
+var app = express()
+var compiler = webpack(webpackConfig)
+
+var devMiddleware = require('webpack-dev-middleware')(compiler, {
+  publicPath: webpackConfig.output.publicPath,
+  quiet: true
+})
+
+var hotMiddleware = require('webpack-hot-middleware')(compiler, {
+  log: () => {}
+})
+// force page reload when html-webpack-plugin template changes
+compiler.plugin('compilation', function (compilation) {
+  compilation.plugin('html-webpack-plugin-after-emit', function (data, cb) {
+    hotMiddleware.publish({ action: 'reload' })
+    cb()
+  })
+})
+
+// proxy api requests
+Object.keys(proxyTable).forEach(function (context) {
+  var options = proxyTable[context]
+  if (typeof options === 'string') {
+    options = { target: options }
+  }
+  app.use(proxyMiddleware(options.filter || context, options))
+})
+
+// handle fallback for HTML5 history API
+app.use(require('connect-history-api-fallback')())
+
+// serve webpack bundle output
+app.use(devMiddleware)
+
+// enable hot-reload and state-preserving
+// compilation error display
+app.use(hotMiddleware)
+
+// serve pure static assets
+var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
+app.use(staticPath, express.static('./static'))
+
+var uri = 'http://localhost:' + port
+
+var _resolve
+var readyPromise = new Promise(resolve => {
+  _resolve = resolve
+})
+
+console.log('> Starting dev server...')
+devMiddleware.waitUntilValid(() => {
+  console.log('> Listening at ' + uri + '\n')
+  // when env is testing, don't need open it
+  if (autoOpenBrowser && process.env.NODE_ENV !== 'testing') {
+    opn(uri)
+  }
+  _resolve()
+})
+
+var server = app.listen(port)
+
+module.exports = {
+  ready: readyPromise,
+  close: () => {
+    server.close()
+  }
+}