From d2291f37104f0ad8ce9bef3ccffac668342d096d Mon Sep 17 00:00:00 2001
From: chenjiahan <chenjiahan@youzan.com>
Date: Sun, 26 Jul 2020 15:29:52 +0800
Subject: [PATCH] feat: migrate Tab component

---
 breaking-changes.md     |  3 +-
 components.js           |  3 ++
 src/tab/README.md       | 18 +++++-----
 src/tab/README.zh-CN.md | 20 +++++------
 src/tab/demo/index.vue  |  4 +--
 src/tab/index.js        |  6 ++--
 src/tabs/Content.js     | 17 +++++----
 src/tabs/Title.js       |  3 +-
 src/tabs/index.js       | 79 +++++++++++++++++++++--------------------
 vant.config.js          | 32 ++++++++---------
 10 files changed, 97 insertions(+), 88 deletions(-)

diff --git a/breaking-changes.md b/breaking-changes.md
index e55b7c0d5..a5d59d872 100644
--- a/breaking-changes.md
+++ b/breaking-changes.md
@@ -4,8 +4,9 @@
 
 以下改动是为了适配 Vue 3 的 v-model API 用法变更：
 
-- Circle: `v-model` 重命名为 `v-model:currentRate`
+- Tabs: `v-model` 重命名为 `v-model:active`
 - Popup: `v-model` 重命名为 `v-model:show`
+- Circle: `v-model` 重命名为 `v-model:currentRate`
 - ShareSheet: `v-model` 重命名为 `v-model:show`
 - ActionSheet: `v-model` 重命名为 `v-model:show`
 - List: `v-model` 重命名为 `v-model:loading`，`error.sync` 重命名为 `v-model:error`
diff --git a/components.js b/components.js
index 87557aa4c..5a02e8202 100644
--- a/components.js
+++ b/components.js
@@ -40,4 +40,7 @@ module.exports = [
   'tabbar',
   'tabbar-item',
   'list',
+  'tab',
+  'tabs',
+  'sticky',
 ];
diff --git a/src/tab/README.md b/src/tab/README.md
index 714912b34..6d6f2e65e 100644
--- a/src/tab/README.md
+++ b/src/tab/README.md
@@ -14,10 +14,10 @@ Vue.use(Tabs);
 
 ### Basic Usage
 
-The first tab is actived by default, you can set `v-model` to active specified tab.
+The first tab is actived by default, you can set `v-model:active` to active specified tab.
 
 ```html
-<van-tabs v-model="active">
+<van-tabs v-model:active="active">
   <van-tab v-for="index in 4" :title="'tab' + index">
     content of tab {{ index }}
   </van-tab>
@@ -37,7 +37,7 @@ export default {
 ### Match By Name
 
 ```html
-<van-tabs v-model="activeName">
+<van-tabs v-model:active="activeName">
   <van-tab title="tab 1" name="a">content of tab 1</van-tab>
   <van-tab title="tab 2" name="b">content of tab 2</van-tab>
   <van-tab title="tab 3" name="c">content of tab 3</van-tab>
@@ -129,7 +129,7 @@ export default {
 In sticky mode, the tab will be fixed to top when scroll to top.
 
 ```html
-<van-tabs v-model="active" sticky>
+<van-tabs v-model:active="active" sticky>
   <van-tab v-for="index in 4" :title="'tab ' + index">
     content {{ index }}
   </van-tab>
@@ -141,7 +141,7 @@ In sticky mode, the tab will be fixed to top when scroll to top.
 Use title slot to custom tab title.
 
 ```html
-<van-tabs v-model="active">
+<van-tabs v-model:active="active">
   <van-tab v-for="index in 2" :key="index">
     <template #title> <van-icon name="more-o" />tab </template>
     content {{ index }}
@@ -154,7 +154,7 @@ Use title slot to custom tab title.
 Use `animated` props to change tabs with animation.
 
 ```html
-<van-tabs v-model="active" animated>
+<van-tabs v-model:active="active" animated>
   <van-tab v-for="index in 4" :title="'tab ' + index">
     content {{ index }}
   </van-tab>
@@ -166,7 +166,7 @@ Use `animated` props to change tabs with animation.
 In swipeable mode, you can switch tabs with swipe gestrue in the content.
 
 ```html
-<van-tabs v-model="active" swipeable>
+<van-tabs v-model:active="active" swipeable>
   <van-tab v-for="index in 4" :title="'tab ' + index">
     content {{ index }}
   </van-tab>
@@ -178,7 +178,7 @@ In swipeable mode, you can switch tabs with swipe gestrue in the content.
 In scrollspy mode, the list of content will be tiled.
 
 ```html
-<van-tabs v-model="active" scrollspy sticky>
+<van-tabs v-model:active="active" scrollspy sticky>
   <van-tab v-for="index in 8" :title="'tab ' + index">
     content {{ index }}
   </van-tab>
@@ -219,7 +219,7 @@ export default {
 
 | Attribute | Description | Type | Default |
 | --- | --- | --- | --- |
-| v-model | Index of active tab | _number \| string_ | `0` |
+| v-model:active | Index of active tab | _number \| string_ | `0` |
 | type | Can be set to `line` `card` | _string_ | `line` |
 | color | Tab color | _string_ | `#ee0a24` |
 | background | Background color | _string_ | `white` |
diff --git a/src/tab/README.zh-CN.md b/src/tab/README.zh-CN.md
index a2ba20c5b..ead80003c 100644
--- a/src/tab/README.zh-CN.md
+++ b/src/tab/README.zh-CN.md
@@ -14,10 +14,10 @@ Vue.use(Tabs);
 
 ### 基础用法
 
-通过 `v-model` 绑定当前激活标签对应的索引值，默认情况下启用第一个标签。
+通过 `v-model:active` 绑定当前激活标签对应的索引值，默认情况下启用第一个标签。
 
 ```html
-<van-tabs v-model="active">
+<van-tabs v-model:active="active">
   <van-tab title="标签 1">内容 1</van-tab>
   <van-tab title="标签 2">内容 2</van-tab>
   <van-tab title="标签 3">内容 3</van-tab>
@@ -37,10 +37,10 @@ export default {
 
 ### 通过名称匹配
 
-在标签指定 `name` 属性的情况下，`v-model` 的值为当前标签的 `name`（此时无法通过索引值来匹配标签）。
+在标签指定 `name` 属性的情况下，`v-model:active` 的值为当前标签的 `name`（此时无法通过索引值来匹配标签）。
 
 ```html
-<van-tabs v-model="activeName">
+<van-tabs v-model:active="activeName">
   <van-tab title="标签 1" name="a">内容 1</van-tab>
   <van-tab title="标签 2" name="b">内容 2</van-tab>
   <van-tab title="标签 3" name="c">内容 3</van-tab>
@@ -133,7 +133,7 @@ export default {
 通过 `sticky` 属性可以开启粘性布局，粘性布局下，标签页滚动到顶部时会自动吸顶。
 
 ```html
-<van-tabs v-model="active" sticky>
+<van-tabs v-model:active="active" sticky>
   <van-tab v-for="index in 4" :title="'选项 ' + index">
     内容 {{ index }}
   </van-tab>
@@ -145,7 +145,7 @@ export default {
 通过 `title` 插槽可以自定义标签内容。
 
 ```html
-<van-tabs v-model="active">
+<van-tabs v-model:active="active">
   <van-tab v-for="index in 2" :key="index">
     <template #title> <van-icon name="more-o" />选项 </template>
     内容 {{ index }}
@@ -158,7 +158,7 @@ export default {
 通过 `animated` 属性可以开启切换标签内容时的转场动画。
 
 ```html
-<van-tabs v-model="active" animated>
+<van-tabs v-model:active="active" animated>
   <van-tab v-for="index in 4" :title="'选项 ' + index">
     内容 {{ index }}
   </van-tab>
@@ -170,7 +170,7 @@ export default {
 通过 `swipeable` 属性可以开启滑动切换标签页。
 
 ```html
-<van-tabs v-model="active" swipeable>
+<van-tabs v-model:active="active" swipeable>
   <van-tab v-for="index in 4" :title="'选项 ' + index">
     内容 {{ index }}
   </van-tab>
@@ -182,7 +182,7 @@ export default {
 通过 `scrollspy` 属性可以开启滚动导航模式，该模式下，内容将会平铺展示。
 
 ```html
-<van-tabs v-model="active" scrollspy sticky>
+<van-tabs v-model:active="active" scrollspy sticky>
   <van-tab v-for="index in 8" :title="'选项 ' + index">
     内容 {{ index }}
   </van-tab>
@@ -226,7 +226,7 @@ export default {
 
 | 参数 | 说明 | 类型 | 默认值 |
 | --- | --- | --- | --- |
-| v-model | 绑定当前选中标签的标识符 | _number \| string_ | `0` |
+| v-model:active | 绑定当前选中标签的标识符 | _number \| string_ | `0` |
 | type | 样式风格类型，可选值为`card` | _string_ | `line` |
 | color | 标签主题色 | _string_ | `#ee0a24` |
 | background | 标签栏背景色 | _string_ | `white` |
diff --git a/src/tab/demo/index.vue b/src/tab/demo/index.vue
index 9d24cac71..4a1bf2451 100644
--- a/src/tab/demo/index.vue
+++ b/src/tab/demo/index.vue
@@ -1,7 +1,7 @@
 <template>
   <demo-section>
     <demo-block :title="t('basicUsage')">
-      <van-tabs v-model="active">
+      <van-tabs v-model:active="active">
         <van-tab :title="t('tab') + index" v-for="index in tabs" :key="index">
           {{ t('content') }} {{ index }}
         </van-tab>
@@ -9,7 +9,7 @@
     </demo-block>
 
     <demo-block :title="t('matchByName')">
-      <van-tabs v-model="activeName">
+      <van-tabs v-model:active="activeName">
         <van-tab name="a" :title="t('tab') + 1"> {{ t('content') }} 1 </van-tab>
         <van-tab name="b" :title="t('tab') + 2"> {{ t('content') }} 2 </van-tab>
         <van-tab name="c" :title="t('tab') + 3"> {{ t('content') }} 3 </van-tab>
diff --git a/src/tab/index.js b/src/tab/index.js
index 75489232e..8ce34d4ca 100644
--- a/src/tab/index.js
+++ b/src/tab/index.js
@@ -53,11 +53,11 @@ export default createComponent({
     },
   },
 
-  render(h) {
-    const { slots, parent, isActive } = this;
+  render() {
+    const { parent, isActive } = this;
     const shouldRender = this.inited || parent.scrollspy || !parent.lazyRender;
     const show = parent.scrollspy || isActive;
-    const Content = shouldRender ? slots() : h();
+    const Content = shouldRender ? this.$slots.default?.() : null;
 
     if (parent.animated) {
       return (
diff --git a/src/tabs/Content.js b/src/tabs/Content.js
index a65bf0d47..a6b9eceb4 100644
--- a/src/tabs/Content.js
+++ b/src/tabs/Content.js
@@ -15,6 +15,8 @@ export default createComponent({
     currentIndex: Number,
   },
 
+  emits: ['change'],
+
   computed: {
     style() {
       if (this.animated) {
@@ -28,10 +30,10 @@ export default createComponent({
     listeners() {
       if (this.swipeable) {
         return {
-          touchstart: this.touchStart,
-          touchmove: this.touchMove,
-          touchend: this.onTouchEnd,
-          touchcancel: this.onTouchEnd,
+          onTouchstart: this.touchStart,
+          onTouchmove: this.touchMove,
+          onTouchend: this.onTouchEnd,
+          onTouchcancel: this.onTouchEnd,
         };
       }
     },
@@ -54,15 +56,16 @@ export default createComponent({
     },
 
     genChildren() {
+      const Content = this.$slots.default?.();
       if (this.animated) {
         return (
           <div class={bem('track')} style={this.style}>
-            {this.slots()}
+            {Content}
           </div>
         );
       }
 
-      return this.slots();
+      return Content;
     },
   },
 
@@ -70,7 +73,7 @@ export default createComponent({
     return (
       <div
         class={bem('content', { animated: this.animated })}
-        {...{ on: this.listeners }}
+        {...this.listeners}
       >
         {this.genChildren()}
       </div>
diff --git a/src/tabs/Title.js b/src/tabs/Title.js
index 0f3e481fc..3e0bfb683 100644
--- a/src/tabs/Title.js
+++ b/src/tabs/Title.js
@@ -15,6 +15,7 @@ export default createComponent({
     disabled: Boolean,
     scrollable: Boolean,
     activeColor: String,
+    renderTitle: Function,
     inactiveColor: String,
     swipeThreshold: [Number, String],
   },
@@ -59,7 +60,7 @@ export default createComponent({
     genText() {
       const Text = (
         <span class={bem('text', { ellipsis: this.ellipsis })}>
-          {this.slots() || this.title}
+          {this.renderTitle ? this.renderTitle() : this.title}
         </span>
       );
 
diff --git a/src/tabs/index.js b/src/tabs/index.js
index 476024b43..9c2ff1cf3 100644
--- a/src/tabs/index.js
+++ b/src/tabs/index.js
@@ -40,10 +40,6 @@ export default createComponent({
     }),
   ],
 
-  model: {
-    prop: 'active',
-  },
-
   props: {
     color: String,
     sticky: Boolean,
@@ -90,7 +86,11 @@ export default createComponent({
     },
   },
 
+  emits: ['rendered', 'input', 'change', 'disabled', 'click', 'scroll'],
+
   data() {
+    this.titleRefs = [];
+
     return {
       position: '',
       currentIndex: null,
@@ -194,18 +194,18 @@ export default createComponent({
       const shouldAnimate = this.inited;
 
       this.$nextTick(() => {
-        const { titles } = this.$refs;
+        const { titleRefs } = this;
 
         if (
-          !titles ||
-          !titles[this.currentIndex] ||
+          !titleRefs ||
+          !titleRefs[this.currentIndex] ||
           this.type !== 'line' ||
           isHidden(this.$el)
         ) {
           return;
         }
 
-        const title = titles[this.currentIndex].$el;
+        const title = titleRefs[this.currentIndex].$el;
         const { lineWidth, lineHeight } = this;
         const width = isDef(lineWidth) ? lineWidth : title.offsetWidth / 2;
         const left = title.offsetLeft + title.offsetWidth / 2;
@@ -302,14 +302,14 @@ export default createComponent({
 
     // scroll active tab into view
     scrollIntoView(immediate) {
-      const { titles } = this.$refs;
+      const { titleRefs } = this;
 
-      if (!this.scrollable || !titles || !titles[this.currentIndex]) {
+      if (!this.scrollable || !titleRefs || !titleRefs[this.currentIndex]) {
         return;
       }
 
       const { nav } = this.$refs;
-      const title = titles[this.currentIndex].$el;
+      const title = titleRefs[this.currentIndex].$el;
       const to = title.offsetLeft - (nav.offsetWidth - title.offsetWidth) / 2;
 
       scrollLeftTo(nav, to, immediate ? 0 : +this.duration);
@@ -369,31 +369,32 @@ export default createComponent({
   render() {
     const { type, ellipsis, animated, scrollable } = this;
 
-    const Nav = this.children.map((item, index) => (
-      <Title
-        ref="titles"
-        refInFor
-        type={type}
-        dot={item.dot}
-        info={isDef(item.badge) ? item.badge : item.info}
-        title={item.title}
-        color={this.color}
-        style={item.titleStyle}
-        isActive={index === this.currentIndex}
-        ellipsis={ellipsis}
-        disabled={item.disabled}
-        scrollable={scrollable}
-        activeColor={this.titleActiveColor}
-        inactiveColor={this.titleInactiveColor}
-        swipeThreshold={this.swipeThreshold}
-        scopedSlots={{
-          default: () => item.slots('title'),
-        }}
-        onClick={() => {
-          this.onClick(item, index);
-        }}
-      />
-    ));
+    const Nav = this.children.map((item, index) => {
+      return (
+        <Title
+          ref={(val) => {
+            this.titleRefs[index] = val;
+          }}
+          dot={item.dot}
+          type={type}
+          info={isDef(item.badge) ? item.badge : item.info}
+          title={item.title}
+          color={this.color}
+          style={item.titleStyle}
+          isActive={index === this.currentIndex}
+          ellipsis={ellipsis}
+          disabled={item.disabled}
+          scrollable={scrollable}
+          renderTitle={item.$slots.title}
+          activeColor={this.titleActiveColor}
+          inactiveColor={this.titleInactiveColor}
+          swipeThreshold={this.swipeThreshold}
+          onClick={() => {
+            this.onClick(item, index);
+          }}
+        />
+      );
+    });
 
     const Wrap = (
       <div
@@ -409,12 +410,12 @@ export default createComponent({
           class={bem('nav', [type])}
           style={this.navStyle}
         >
-          {this.slots('nav-left')}
+          {this.$slots['nav-left']?.()}
           {Nav}
           {type === 'line' && (
             <div class={bem('line')} style={this.lineStyle} />
           )}
-          {this.slots('nav-right')}
+          {this.$slots['nav-right']?.()}
         </div>
       </div>
     );
@@ -440,7 +441,7 @@ export default createComponent({
           currentIndex={this.currentIndex}
           onChange={this.setCurrentIndex}
         >
-          {this.slots()}
+          {this.$slots.default?.()}
         </Content>
       </div>
     );
diff --git a/vant.config.js b/vant.config.js
index 6e159f079..5753c0f74 100644
--- a/vant.config.js
+++ b/vant.config.js
@@ -269,10 +269,10 @@ module.exports = {
                 path: 'steps',
                 title: 'Steps 步骤条',
               },
-              // {
-              //   path: 'sticky',
-              //   title: 'Sticky 粘性布局',
-              // },
+              {
+                path: 'sticky',
+                title: 'Sticky 粘性布局',
+              },
               // {
               //   path: 'swipe',
               //   title: 'Swipe 轮播',
@@ -306,10 +306,10 @@ module.exports = {
                 path: 'sidebar',
                 title: 'Sidebar 侧边导航',
               },
-              // {
-              //   path: 'tab',
-              //   title: 'Tab 标签页',
-              // },
+              {
+                path: 'tab',
+                title: 'Tab 标签页',
+              },
               {
                 path: 'tabbar',
                 title: 'Tabbar 标签栏',
@@ -603,10 +603,10 @@ module.exports = {
                 path: 'steps',
                 title: 'Steps',
               },
-              // {
-              //   path: 'sticky',
-              //   title: 'Sticky',
-              // },
+              {
+                path: 'sticky',
+                title: 'Sticky',
+              },
               // {
               //   path: 'swipe',
               //   title: 'Swipe',
@@ -640,10 +640,10 @@ module.exports = {
                 path: 'sidebar',
                 title: 'Sidebar',
               },
-              // {
-              //   path: 'tab',
-              //   title: 'Tab',
-              // },
+              {
+                path: 'tab',
+                title: 'Tab',
+              },
               {
                 path: 'tabbar',
                 title: 'Tabbar',