[Vue学习] 实现Tab选项卡效果, 动态增删Tab, 内容支持动态组件
内容导读
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内容图文
最近学习了一下Vue, 尝试实现一个自定义Tab组件, 效果如下:
支持动态添加tab项, 内容支持放入动态组件
效果图:
目录结构:
1. 使用vue-cli创建脚手架项目
2. 在components中创建C1,C2,C3,MyTab四个自定义组件
package.json
1
{
2 "name": "hello",
3 "version": "0.1.0",
4 "private": true,
5 "scripts": {
6 "serve": "vue-cli-service serve",
7 "build": "vue-cli-service build",
8 "lint": "vue-cli-service lint"
9 },
10 "dependencies": {
11 "core-js": "^3.6.5",
12 "vue": "^2.6.11"
13 },
14 "devDependencies": {
15 "@vue/cli-plugin-babel": "~4.5.0",
16 "@vue/cli-plugin-eslint": "~4.5.0",
17 "@vue/cli-service": "~4.5.0",
18 "babel-eslint": "^10.1.0",
19 "eslint": "^6.7.2",
20 "eslint-plugin-vue": "^6.2.2",
21 "vue-template-compiler": "^2.6.11"
22 },
23 "eslintConfig": {
24 "root": true,
25 "env": {
26 "node": true27 },
28 "extends": [
29 "plugin:vue/essential",
30 "eslint:recommended"
31 ],
32 "parserOptions": {
33 "parser": "babel-eslint"
34 },
35 "rules": {}
36 },
37 "browserslist": [
38 "> 1%",
39 "last 2 versions",
40 "not dead"
41 ]
42 }
MyTab.vue
1 <script>
2 export default {
3 components: {},
4 props: {
5 tabs: {
6 type: Array,
7 required: true,
8default: function name() {
9return []
10 },
11 },
12 currentTab: {
13 type: String,
14 required: true,
15 },
16 },
17 render: function(h) {
18var self = this 19return h(
20 "div", // 标签名称 21 {
22 class: "tab-container",
23 },
24 [
25 h(
26 "ol",
27 { class: "title" },
28 self.tabs.map(function name(t) {
29return h(
30 "li",
31 {
32 class: {
33 active: self.isActive(t),
34 },
35 on: {
36 click: function name() {
37 self.$emit("tabChange", t.title)
38 },
39 },
40 },
41 t.title
42 )
43 })
44 ),
45 h(
46 "ol",
47 { class: "content" },
48 self.tabs
49 .filter((t) => {
50return self.isActive(t)
51 })
52 .map(function name(t) {
53return h("li", [h(t.com, { props: t.props })])
54 })
55 ),
56 ]
57 )
58 },
59 methods: {
60 isActive(tab) {
61var cur = this.currentTab
62if (cur == "") {
63 cur = this.tabs[0].title
64 }
65return cur == tab.title
66 },
67 },
68 computed: {},
69}
70 </script>
71 <style scoped>
72ol,
73li {
74 padding: 0;
75 margin: 0;
76 list-style: none;
77}
78 79 .tab-container {
80 border: solid 0px #f60;
81 width: 400px;
82}
83 84 .tab-container .title li {
85 padding: 5px 10px;
86 background-color: cadetblue;
87 display: inline-block;
88 margin: 0 2px 1px 0;
89 color: #fff;
90 cursor: pointer;
91}
92 93 .tab-container .title li:hover {
94 background-color: rgb(72, 142, 145);
95}
96 97 .tab-container .title li.active {
98 background-color: rgb(43, 105, 107);
99}
100101 .tab-container .content li {
102 padding: 5px 10px;
103 background-color: rgb(195, 253, 255);
104 border: solid 2px rgb(51, 141, 148);
105}
106 </style>
C1.vue
1
<
template
>
2
<
p
>{{ content }}</p> 3</template> 4<script> 5export default {
6 props: {
7 content: {
8 type: String,
9default: "none",
10 },
11 },
12 data() {
13return {}
14 },
15}
16</script>17<style scoped>18ol li {19 border: solid 1px #abc;20 padding: 5px 10px;21}22</style>
C2.vue
1
<
template
>
2
<
ol
>
3
<
li
v-for
="tr in list"
:key
="tr"
>{{ tr }}</li> 4</ol> 5</template> 6<script> 7export default {
8 props: ["list"],
9 data1() {
10return {
11 list: [1, 2, 3, 4, 5, 6],
12 }
13 },
14}
15</script>16<style scoped>17ol li {18 border: solid 1px #c0c0c0;19 margin: 2px;20 padding: 5px 10px;21}22</style>
C3.vue
1
<
template
>
2
<
table
>
3
<
tr
v-for
="(tr, idx) in table"
:key
="tr[0] + ‘_‘ + idx"
>
4
<
td
v-for
="(td, idx2) in tr"
:key
="td + ‘_‘ + idx + ‘_‘ + idx2"
>{{ td }}</td> 5</tr> 6</table> 7</template> 8<script> 9export default {
10 props: ["table"],
11 data1() {
12return {
13 table: [
14 [1, 2, 3, 4, 5, 6],
15 [2, 4, 5, 6, 7, 8],
16 [3, 4, 5, 6, 7, 8],
17 ],
18 }
19 },
20}
21</script>22<style scoped>23table {24 border: solid 1px #c0c0c0;25}2627table tr td {28 padding: 5px 10px;29 border: solid 1px #c0c0c0;30}31</style>
App.vue
1
<
template
>
2
<
div
id
="app"
>
3
<
div
class
="opt"
>
4
<
button
@click
="tabAdd"
>AddTab</button> 5<button @click="tabRemove">RemoveTab</button> 6<button>{{ index }}</button> 7</div> 8 9<MyTab :tabs="tabs" v-on:tabChange="tabChange" :currentTab="currentTab"></MyTab>10</div>11</template>1213<script>14//import HelloWorld from ‘./components/HelloWorld.vue‘15import MyTab from "./components/MyTab.vue"1617export default {
18 name: "App",
19 components: { MyTab },
20 data() {
21return {
22 index: 3,
23 currentTab: "textTab",
24 tabs: [
25 {
26 title: "textTab",
27 com: this.$Com("C1"),
28 props: {
29 content: "一段文字而已..",
30 },
31 },
32 {
33 title: "listTab",
34 com: this.$Com("C2"),
35 props: {
36 list: [1, 2, 3, 4, 5, 6],
37 },
38 },
39 {
40 title: "tableTab",
41 com: this.$Com("C3"),
42 props: {
43 table: [
44 [1, 2, 3, 4, 5, 6],
45 [2, 4, 5, 6, 7, 8],
46 [3, 4, 5, 6, 7, 8],
47 ],
48 },
49 },
50 ],
51 }
52 },
53 methods: {
54 tabAdd() {
55this.tabs.push({
56 title: "tableTab"+this.index++,
57 com: this.$Com("C3"),
58 props: {
59 table: [
60 [1+this.index, 2, 3, 4, 5, 6],
61 [7+this.index, 8, 9, 10, 11, 12],
62 ],
63 },
64 })
65 },
66 tabRemove() {
67if (this.index >3) {
68this.tabs.splice(this.tabs.length -1, 1)
69this.index--70this.currentTab =this.tabs[0].title
71 }
72 },
73 tabChange(currentTab) {
74this.currentTab = currentTab
75 },
76 },
77}
78</script>7980<style>81#app {82 font-family: Avenir, Helvetica, Arial, sans-serif;83 -webkit-font-smoothing: antialiased;84 -moz-osx-font-smoothing: grayscale;85 color: #2c3e50;86 margin: 60px;87 font-size: 14px;88}8990.opt {91 margin: 10px 0;92}93.opt button {94 margin-right: 5px;95}96</style>
main.js
1 import Vue from "vue"
2 import App from "./App.vue"
3 4 Vue.config.productionTip = false 5 6 Vue.prototype.$Com = function(fileName) {
7return Vue.component(fileName, () => import("./components/" + fileName + ".vue"))
8}
910new Vue({
11 render: (h) => h(App),
12 }).$mount("#app")
参考1: https://cn.vuejs.org/v2/guide/components-dynamic-async.html
参考2: https://cn.vuejs.org/v2/guide/render-function.html
原文：https://www.cnblogs.com/sanshizi/p/14691163.html
内容总结
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