first commit

.babelrc

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+{
+  "presets": ["vue-app"]
+}

.gitignore

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+node_modules/

README.md

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+# v-money
+
+Tiny (<2k gzipped) input/directive mask for currency formatting.

build.config.js

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+const webpack = require.main.require('webpack')
+const {name, version} = require('./package.json')
+
+const demo = process.env.NODE_ENV === 'development' || process.env.npm_lifecycle_event === 'docs:build'
+
+module.exports = {
+  // generate html only for dev and dist:demo
+  html: demo,
+  babel: {
+    babelrc: false,
+  },
+  webpack: {
+    devtool: false, // disable source-map
+    output: {
+      publicPath: '.', // generate client.*.js relative to ./demo/index.html
+      filename: demo ? undefined : kebabCase(name) + '.js', // my-component.js
+      library: demo ? undefined : camelCase(name) // MyComponent
+    },
+    plugins: [
+      new webpack.DefinePlugin({
+        'proccess.env.VERSION': JSON.stringify(version) // adds MyComponent.version
+      })
+    ]
+  }
+}
+
+// utils
+
+// converts MyComponent to my-component
+function kebabCase (s) {
+  return s.replace(/([A-Z])([^A-Z\-])/g, (_, a, b) => `-${a}${b}`)
+          .toLowerCase()
+          .replace(/[\s_-]+/g, '-')
+          .replace(/(^\W)|(\W$)/g, '')
+}
+
+// converts my-component to MyComponent
+function camelCase (s) {
+  return s.replace(/([\-_\s]+[a-z])|(^[a-z])/g, $1 => $1.toUpperCase())
+          .replace(/[\-_\s]+/g, '')
+}

package.json

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+{
+  "name": "v-money",
+  "version": "0.1.0",
+  "description": "Vue currency input/directive mask",
+  "main": "dist/v-money.js",
+  "scripts": {
+    "dev": "vue build ./src/docs/docs.vue --config ./src/docs/build.config.js --host 0.0.0.0",
+    "build": "vue build ./src/index.js --config ./build.config.js --dist ./dist/ --prod --lib",
+    "docs:build": "vue build ./src/docs/docs.vue --config ./src/docs/build.config.js --dist ./docs/ --prod",
+    "docs:serve": "open http://localhost:5000/docs/ && serve ./",
+    "compile": "npm run build -- --disable-compress",
+    "test": "jest"
+  },
+  "keywords": ["vue", "input", "mask", "directive", "currency", "money"],
+  "files": ["dist/"],
+  "author": "Marcos Neves <marcos.neves@gmail.com> (https://vuejs-tips.github.io/)",
+  "license": "MIT",
+  "devDependencies": {
+    "babel-jest": "^20.0.3",
+    "babel-preset-vue-app": "^1.2.0",
+    "jest": "^20.0.4"
+  }
+}

src/assign.js

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+export default function (defaults, extras) {
+  return Object.keys(defaults).concat(Object.keys(extras)).reduce( function (acc, val) {
+    acc[val] = extras[val] === undefined ? defaults[val] : extras[val]
+    return acc
+  }, {})
+}

src/component.vue

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+<template lang="html">
+  <input type="tel"
+         v-model="editableValue"
+         v-money="{precision, decimal, thousands, prefix, suffix}"
+         style="text-align: right" />
+</template>
+
+<script>
+import money from './directive'
+import defaults from './options'
+import {format, unformat} from './utils'
+
+export default {
+  props: {
+    value: {
+      required: true,
+      type: [Number, String],
+      default: 0
+    },
+    masked: {
+      type: Boolean,
+      default: false
+    },
+    precision: {
+      type: Number,
+      default: () => defaults.precision
+    },
+    decimal: {
+      type: String,
+      default: () => defaults.decimal
+    },
+    thousands: {
+      type: String,
+      default: () => defaults.thousands
+    },
+    prefix: {
+      type: String,
+      default: () => defaults.prefix
+    },
+    suffix: {
+      type: String,
+      default: () => defaults.suffix
+    }
+  },
+
+  directives: {money},
+
+  computed: {
+    editableValue: {
+      get () { return format(this.value, this.$props) },
+      set (newValue) {
+        this.$emit('input', this.masked ? newValue : unformat(newValue, this.precision))
+      }
+    }
+  }
+}
+</script>

src/directive.js

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+import {format, backspace} from './utils'
+import assign from './assign'
+import defaults from './options'
+
+function dispatchDelete (e) {
+  var key = e.keyCode || e.which
+  if (key === 8 || key === 46) { // Backspace / Delete
+    e.preventDefault()
+    e.target.dispatchEvent(new KeyboardEvent('keypress'))
+  }
+}
+
+export default function (el, binding) {
+  var opt = assign(defaults, binding.value)
+
+  el.value = format(el.value, opt)
+  keepCursorBeforeSuffix()
+
+  function keepCursorBeforeSuffix () {
+    if (el === document.activeElement) {
+      var index = el.value.length - opt.suffix.length
+      el.setSelectionRange(index, index)
+    }
+  }
+
+  function keypress (e) {
+    e.preventDefault()
+    var key = e.keyCode || e.which
+    if (key === 0) { // Backspace / Delete
+      backspace(el)
+    }
+    el.value += String.fromCharCode(key)
+    el.value = format(el.value, opt)
+    el.dispatchEvent(new Event('input'))
+  }
+
+  el.onkeydown = dispatchDelete
+  el.onkeypress = keypress
+  el.oninput = keepCursorBeforeSuffix
+  el.dispatchEvent(new Event('input'))
+}

src/docs/build.config.js

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+const path = require('path')
+
+module.exports = {
+  babel: {
+    babelrc: false,
+  },
+  // html: {
+  //   template: path.resolve(__dirname, './layout.html')
+  // },
+  webpack: {
+    devtool: false, // disable source-map
+    output: {
+      publicPath: '', // generate client.*.js relative to ./demo/index.html
+    }
+  }
+}

src/docs/docs.vue

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+<template lang="html">
+<div class="container col-4 col-xl-6 col-md-8 col-sm-10 col-xs-12">
+  <label>Component</label>
+  <div class="columns">
+    <div class="column col-6 col-sm-12">
+      <money v-model="price" class="form-input input-lg" v-bind="config"></money>
+    </div>
+    <div class="column col-6 col-sm-12">
+      <h3>{{price}}</h3>
+    </div>
+  </div>
+
+  <label>Directive</label>
+  <div class="columns">
+    <div class="column col-6 col-sm-12">
+      <input type="tel" v-money="config" v-model="priceDirective" class="form-input input-lg" style="text-align: right" />
+    </div>
+    <div class="column col-6 col-sm-12">
+      <h3>{{priceDirective}}</h3>
+    </div>
+  </div>
+
+  <div class="columns">
+    <div class="column col-2 col-sm-3">
+      <label class="form-label" for="prefix">Prefix</label>
+    </div>
+    <div class="column col-2 col-sm-3">
+      <input class="form-input" type="text" id="prefix" v-model="config.prefix" />
+    </div>
+
+    <div class="column col-2 col-sm-3">
+      <label class="form-label" for="suffix">Suffix</label>
+    </div>
+    <div class="column col-2 col-sm-3">
+      <input class="form-input" type="text" id="suffix" v-model="config.suffix" />
+    </div>
+
+    <div class="column col-2 col-sm-3">
+      <label class="form-label" for="precision">Precision</label>
+    </div>
+    <div class="column col-2 col-sm-3">
+      <input class="form-input" type="number" id="precision" v-model.number="config.precision" min="0" max="4" />
+    </div>
+
+    <div class="column col-2 col-sm-3">
+      <label class="form-label" for="decimal">Decimal</label>
+    </div>
+    <div class="column col-2 col-sm-3">
+      <input class="form-input" type="text" id="decimal" v-model="config.decimal" />
+    </div>
+    <div class="column col-2 col-sm-3">
+      <label class="form-label" for="thousands">Thousands</label>
+    </div>
+    <div class="column col-2 col-sm-3">
+      <input class="form-input" type="text" id="thousands" v-model="config.thousands" />
+    </div>
+    <div class="column col-4 col-sm-5">
+      <div class="form-group">
+        <label class="form-checkbox">
+          <input type="checkbox" id="masked" v-model="config.masked" />
+          <i class="form-icon"></i> Masked Output
+        </label>
+      </div>
+    </div>
+  </div>
+</div>
+</template>
+
+<script>
+import Vue from 'vue'
+import money from '../index'
+
+Vue.use(money)
+
+export default {
+  data () {
+    return {
+      price: 1234.5,
+      priceDirective: 5432.1,
+      config: {decimal: ',', thousands: '.', prefix: 'R$ ', suffix: ' #', precision: 2, masked: false}
+    }
+  }
+}
+</script>
+
+<style lang="css">
+@import url('https://cdnjs.cloudflare.com/ajax/libs/spectre.css/0.2.14/spectre.min.css');
+input {
+  font-family: monospace;
+  font-size: 1.8rem !important;
+}
+</style>

src/index.js

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+import component from './component'
+import directive from './directive'
+import options from './options'
+const VERSION = proccess.env.VERSION
+
+export {
+  component,
+  directive,
+  options,
+  VERSION
+}
+
+function install (Vue) {
+  Vue.directive('money', directive)
+  Vue.component('money', component)
+}
+
+export default install
+
+// Install by default if included from script tag
+if (typeof window !== 'undefined' && window.Vue) {
+  window.Vue.use(install)
+}

src/options.js

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+export default {
+  prefix: '',
+  suffix: '',
+  thousands: ',',
+  decimal: '.',
+  precision: 2
+}

src/utils.js

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+import defaults from './options'
+
+function format (input, opt = defaults) {
+  if (typeof input === 'number') {
+    input = input.toFixed(fixed(opt.precision))
+  }
+  var numbers = onlyNumbers(input)
+  var currency = numbersToCurrency(numbers, opt.precision)
+  var parts = toStr(currency).split('.')
+  var integer = parts[0]
+  var decimal = parts[1]
+  integer = addThousandSeparator(integer, opt.thousands)
+  return opt.prefix + joinIntegerAndDecimal(integer, decimal, opt.decimal) + opt.suffix
+}
+
+function unformat (input, precision) {
+  var numbers = onlyNumbers(input)
+  var currency = numbersToCurrency(numbers, precision)
+  return parseFloat(currency)
+}
+
+function onlyNumbers (input) {
+  return toStr(input).replace(/\D+/g, '') || '0'
+}
+
+// Uncaught RangeError: toFixed() digits argument must be between 0 and 20 at Number.toFixed
+function fixed (precision) {
+  return between(0, precision, 20)
+}
+
+function between (min, n, max) {
+  return Math.max(min, Math.min(n, max))
+}
+
+function numbersToCurrency (numbers, precision) {
+  var exp = Math.pow(10, precision)
+  var float = parseFloat(numbers) / exp
+  return float.toFixed(fixed(precision))
+}
+
+function addThousandSeparator (integer, separator) {
+  return integer.replace(/(\d)(?=(?:\d{3})+\b)/gm, `$1${separator}`)
+}
+
+function currencyToIntegerAndDecimal (float) {
+  return toStr(float).split('.')
+}
+
+function joinIntegerAndDecimal (integer, decimal, separator) {
+  return decimal ? integer + separator + decimal : integer
+}
+
+function toStr (value) {
+  return value ? value.toString() : ''
+}
+
+function backspace (el) {
+  el.value = onlyNumbers(el.value).slice(0, -1)
+}
+
+export {
+  format,
+  unformat,
+  backspace,
+  onlyNumbers
+}