element-plus/website/components/demo-block.vue

346 lines
8.7 KiB
Vue

<template>
<div
class="demo-block"
:class="[blockClass, { 'hover': hovering }]"
@mouseenter="hovering = true"
@mouseleave="hovering = false"
>
<div class="source">
<slot name="source"></slot>
</div>
<div ref="meta" class="meta">
<div v-if="$slots.default" class="description">
<slot></slot>
</div>
<div class="highlight">
<slot name="highlight"></slot>
</div>
</div>
<div
ref="control"
class="demo-block-control"
:class="{ 'is-fixed': fixedControl }"
@click="isExpanded = !isExpanded"
>
<transition name="arrow-slide">
<i :class="[iconClass, { 'hovering': hovering }]"></i>
</transition>
<transition name="text-slide">
<span v-show="hovering">{{ controlText }}</span>
</transition>
<el-tooltip effect="dark" :content="langConfig['tooltip-text']" placement="right">
<transition name="text-slide">
<el-button
v-show="hovering || isExpanded"
size="small"
type="text"
class="control-button"
@click.stop="goCodepen"
>
{{ langConfig['button-text'] }}
</el-button>
</transition>
</el-tooltip>
</div>
</div>
</template>
<script>
import { nextTick } from 'vue'
import hljs from 'highlight.js'
import compoLang from '../i18n/component.json'
import { stripScript, stripStyle, stripTemplate } from '../util'
const version = '1.0.0' // element version
export default {
data() {
return {
codepen: {
script: '',
html: '',
style: '',
},
hovering: false,
isExpanded: false,
fixedControl: false,
scrollParent: null,
}
},
computed: {
lang() {
return this.$route.path.split('/')[1]
},
langConfig() {
return compoLang.filter(config => config.lang === this.lang)[0]['demo-block']
},
blockClass() {
return `demo-${ this.lang } demo-${ this.$router.currentRoute.value.path.split('/').pop() }`
},
iconClass() {
return this.isExpanded ? 'el-icon-caret-top' : 'el-icon-caret-bottom'
},
controlText() {
return this.isExpanded ? this.langConfig['hide-text'] : this.langConfig['show-text']
},
codeArea() {
return this.$el.getElementsByClassName('meta')[0]
},
codeAreaHeight() {
if (this.$el.getElementsByClassName('description').length > 0) {
return this.$el.getElementsByClassName('description')[0].clientHeight +
this.$el.getElementsByClassName('highlight')[0].clientHeight + 20
}
return this.$el.getElementsByClassName('highlight')[0].clientHeight
},
},
watch: {
isExpanded(val) {
this.codeArea.style.height = val ? `${ this.codeAreaHeight + 1 }px` : '0'
if (!val) {
this.fixedControl = false
this.$refs.control.style.left = '0'
this.removeScrollHandler()
return
}
setTimeout(() => {
this.scrollParent = document.querySelector('.page-component__scroll > .el-scrollbar__wrap')
this.scrollParent && this.scrollParent.addEventListener('scroll', this.scrollHandler)
this.scrollHandler()
}, 200)
},
},
created() {
const highlight = this.$slots.highlight()
if (highlight && highlight[0]) {
let code = ''
let cur = highlight[0]
if (cur.tag === 'pre' && (cur.children && cur.children[0])) {
cur = cur.children[0]
if (cur.tag === 'code') {
code = cur.children[0].text
}
}
if (code) {
this.codepen.html = stripTemplate(code)
this.codepen.script = stripScript(code)
this.codepen.style = stripStyle(code)
}
}
},
mounted() {
nextTick(() => {
let highlight = this.$el.getElementsByClassName('highlight')[0]
if (this.$el.getElementsByClassName('description').length === 0) {
highlight.style.width = '100%'
highlight.borderRight = 'none'
}
try {
hljs.highlightBlock(highlight.querySelector('code'))
} catch (error) {
console.log(error)
}
})
},
beforeUnmount() {
this.removeScrollHandler()
},
methods: {
goCodepen() {
// since 2.6.2 use code rather than jsfiddle https://blog.codepen.io/documentation/api/prefill/
const { script, html, style } = this.codepen
const resourcesTpl = '<scr' + 'ipt src="//unpkg.com/vue/dist/vue.js"></scr' + 'ipt>' +
'\n<scr' + `ipt src="//unpkg.com/element-ui@${ version }/lib/index.js"></scr` + 'ipt>'
let jsTpl = (script || '').replace(/export default/, 'var Main =').trim()
let htmlTpl = `${resourcesTpl}\n<div id="app">\n${html.trim()}\n</div>`
let cssTpl = `@import url("//unpkg.com/element-ui@${ version }/lib/theme-chalk/index.css");\n${(style || '').trim()}\n`
jsTpl = jsTpl
? jsTpl + '\nvar Ctor = Vue.extend(Main)\nnew Ctor().$mount(\'#app\')'
: 'new Vue().$mount(\'#app\')'
const data = {
js: jsTpl,
css: cssTpl,
html: htmlTpl,
}
const form = document.getElementById('fiddle-form') || document.createElement('form')
while (form.firstChild) {
form.removeChild(form.firstChild)
}
form.method = 'POST'
form.action = 'https://codepen.io/pen/define/'
form.target = '_blank'
form.style.display = 'none'
const input = document.createElement('input')
input.setAttribute('name', 'data')
input.setAttribute('type', 'hidden')
input.setAttribute('value', JSON.stringify(data))
form.appendChild(input)
document.body.appendChild(form)
form.submit()
},
scrollHandler() {
const { top, bottom, left } = this.$refs.meta.getBoundingClientRect()
this.fixedControl = bottom > document.documentElement.clientHeight &&
top + 44 <= document.documentElement.clientHeight
this.$refs.control.style.left = this.fixedControl ? `${ left }px` : '0'
},
removeScrollHandler() {
this.scrollParent && this.scrollParent.removeEventListener('scroll', this.scrollHandler)
},
},
}
</script>
<style lang="scss" scoped>
.demo-block {
border: solid 1px #ebebeb;
border-radius: 3px;
transition: .2s;
&.hover {
box-shadow: 0 0 8px 0 rgba(232, 237, 250, .6), 0 2px 4px 0 rgba(232, 237, 250, .5);
}
code {
font-family: Menlo, Monaco, Consolas, Courier, monospace;
}
.demo-button {
float: right;
}
.source {
padding: 24px;
}
.meta {
background-color: #fafafa;
border-top: solid 1px #eaeefb;
overflow: hidden;
height: 0;
transition: height .2s;
}
.description {
padding: 20px;
box-sizing: border-box;
border: solid 1px #ebebeb;
border-radius: 3px;
font-size: 14px;
line-height: 22px;
color: #666;
word-break: break-word;
margin: 10px;
background-color: #fff;
p {
margin: 0;
line-height: 26px;
}
code {
color: #5e6d82;
background-color: #e6effb;
margin: 0 4px;
display: inline-block;
padding: 1px 5px;
font-size: 12px;
border-radius: 3px;
height: 18px;
line-height: 18px;
}
}
.highlight {
pre {
margin: 0;
}
code.hljs {
margin: 0;
border: none;
max-height: none;
border-radius: 0;
&::before {
content: none;
}
}
}
.demo-block-control {
border-top: solid 1px #eaeefb;
height: 44px;
box-sizing: border-box;
background-color: #fff;
border-bottom-left-radius: 4px;
border-bottom-right-radius: 4px;
text-align: center;
margin-top: -1px;
color: #d3dce6;
cursor: pointer;
position: relative;
&.is-fixed {
position: fixed;
bottom: 0;
width: 868px;
}
i {
font-size: 16px;
line-height: 44px;
transition: .3s;
&.hovering {
transform: translateX(-40px);
}
}
> span {
position: absolute;
transform: translateX(-30px);
font-size: 14px;
line-height: 44px;
transition: .3s;
display: inline-block;
}
&:hover {
color: #409EFF;
background-color: #f9fafc;
}
& .text-slide-enter,
& .text-slide-leave-active {
opacity: 0;
transform: translateX(10px);
}
.control-button {
line-height: 26px;
position: absolute;
top: 0;
right: 0;
font-size: 14px;
padding-left: 5px;
padding-right: 25px;
}
}
}
</style>