From 4a51544bd6470ab628dda80e9d7593e4603dd0b6 Mon Sep 17 00:00:00 2001
From: tangjinzhou <415800467@qq.com>
Date: Thu, 26 Jul 2018 13:25:02 +0800
Subject: [PATCH] feat: optimize Chinese input(just support v-model)

---
 components/_util/antInputDirective.js     | 74 +++++++++++++++++++++++
 components/input/Input.jsx                | 12 +++-
 components/input/TextArea.jsx             |  7 ++-
 components/input/__tests__/Search.test.js |  3 +-
 components/input/index.js                 |  4 ++
 site/dev.js                               |  2 +-
 6 files changed, 98 insertions(+), 4 deletions(-)
 create mode 100644 components/_util/antInputDirective.js

diff --git a/components/_util/antInputDirective.js b/components/_util/antInputDirective.js
new file mode 100644
index 000000000..c6812322e
--- /dev/null
+++ b/components/_util/antInputDirective.js
@@ -0,0 +1,74 @@
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+export const inBrowser = typeof window !== 'undefined'
+export const UA = inBrowser && window.navigator.userAgent.toLowerCase()
+export const isIE9 = UA && UA.indexOf('msie 9.0') > 0
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  const map = Object.create(null)
+  const list = str.split(',')
+  for (let i = 0; i < list.length; i++) {
+    map[list[i]] = true
+  }
+  return expectsLowerCase
+    ? val => map[val.toLowerCase()]
+    : val => map[val]
+}
+const isTextInputType = makeMap('text,number,password,search,email,tel,url')
+
+function onCompositionStart (e) {
+  e.target.composing = true
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) return
+  e.target.composing = false
+  trigger(e.target, 'input')
+}
+
+function trigger (el, type) {
+  const e = document.createEvent('HTMLEvents')
+  e.initEvent(type, true, true)
+  el.dispatchEvent(e)
+}
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', () => {
+    const el = document.activeElement
+    if (el && el.vmodel) {
+      trigger(el, 'input')
+    }
+  })
+}
+
+export default {
+  install: (Vue, options) => {
+    Vue.directive('ant-input', {
+      inserted (el, binding, vnode, oldVnode) {
+        if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+          if (!binding.modifiers || !binding.modifiers.lazy) {
+            el.addEventListener('compositionstart', onCompositionStart)
+            el.addEventListener('compositionend', onCompositionEnd)
+            // Safari < 10.2 & UIWebView doesn't fire compositionend when
+            // switching focus before confirming composition choice
+            // this also fixes the issue where some browsers e.g. iOS Chrome
+            // fires "change" instead of "input" on autocomplete.
+            el.addEventListener('change', onCompositionEnd)
+            /* istanbul ignore if */
+            if (isIE9) {
+              el.vmodel = true
+            }
+          }
+        }
+      },
+    })
+  },
+}
diff --git a/components/input/Input.jsx b/components/input/Input.jsx
index 2364f58aa..dd7fa76a3 100644
--- a/components/input/Input.jsx
+++ b/components/input/Input.jsx
@@ -52,7 +52,9 @@ export default {
       } else {
         this.$forceUpdate()
       }
-      this.$emit('change.value', e.target.value)
+      if (!e.target.composing) {
+        this.$emit('change.value', e.target.value)
+      }
       this.$emit('change', e)
       this.$emit('input', e)
     },
@@ -185,6 +187,9 @@ export default {
         class: classNames(getInputClassName(), getClass(this)),
         ref: 'input',
       }
+      if ($listeners['change.value']) {
+        inputProps.directives = [{ name: 'ant-input' }]
+      }
       return this.renderLabeledIcon(
         <input
           {...inputProps}
@@ -203,6 +208,11 @@ export default {
           change: this.handleChange,
           keydown: this.handleKeyDown,
         },
+        directives: [
+          {
+            name: 'ant-input',
+          },
+        ],
       }
       return <TextArea {...textareaProps} ref='input' />
     }
diff --git a/components/input/TextArea.jsx b/components/input/TextArea.jsx
index 2fdd2800d..1ff5a6cde 100644
--- a/components/input/TextArea.jsx
+++ b/components/input/TextArea.jsx
@@ -96,9 +96,11 @@ export default {
         })
       } else {
         this.$forceUpdate()
+      }
+      if (!e.target.composing) {
         this.$emit('change.value', e.target.value)
-        this.$emit('change', e)
       }
+      this.$emit('change', e)
       this.$emit('input', e)
     },
 
@@ -133,6 +135,9 @@ export default {
         input: handleTextareaChange,
       },
     }
+    if ($listeners['change.value']) {
+      textareaProps.directives = [{ name: 'ant-input' }]
+    }
     return (
       <textarea
         {...textareaProps}
diff --git a/components/input/__tests__/Search.test.js b/components/input/__tests__/Search.test.js
index b55809067..e17c538ed 100644
--- a/components/input/__tests__/Search.test.js
+++ b/components/input/__tests__/Search.test.js
@@ -1,9 +1,10 @@
 import { mount } from '@vue/test-utils'
 import { asyncExpect } from '@/tests/utils'
-import Search from '../Search'
+import Input from '../index'
 import Button from '../../button'
 import focusTest from '../../../tests/shared/focusTest'
 
+const { Search } = Input
 describe('Input.Search', () => {
   focusTest(Search)
 
diff --git a/components/input/index.js b/components/input/index.js
index 91732a3d0..771a05cc0 100644
--- a/components/input/index.js
+++ b/components/input/index.js
@@ -1,7 +1,11 @@
+import Vue from 'vue'
 import Input from './Input'
 import Group from './Group'
 import Search from './Search'
 import TextArea from './TextArea'
+import antInputDirective from '../_util/antInputDirective'
+
+Vue.use(antInputDirective)
 
 Input.Group = Group
 Input.Search = Search
diff --git a/site/dev.js b/site/dev.js
index 0d84c3138..3eb5bfb83 100644
--- a/site/dev.js
+++ b/site/dev.js
@@ -10,7 +10,7 @@ import Api from './components/api'
 import './components'
 import demoBox from './components/demoBox'
 import demoContainer from './components/demoContainer'
-import Test from '../components/carousel/demo/index'
+import Test from '../components/test/index'
 
 Vue.use(VueClipboard)
 Vue.use(VueRouter)