l-echart.uvue
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<template>
<!-- #ifdef APP -->
<web-view class="lime-echart" ref="chartRef" @loaded="loaded" :style="[customStyle]"
:webview-styles="[webviewStyles]" src="/uni_modules/lime-echart/static/uvue.html?v=1011">
</web-view>
<!-- #endif -->
<!-- #ifdef H5 -->
<div class="lime-echart" ref="chartRef"></div>
<!-- #endif -->
</template>
<script lang="uts" setup>
// @ts-nocheck
import { Echarts } from './uvue';
type EchartsResolve = (value : Echarts) => void
defineOptions({
name: 'l-echart'
})
const emits = defineEmits(['finished'])
const props = defineProps({
// #ifdef APP
webviewStyles: {
type: Object
},
customStyle: {
type: Object
},
// #endif
// #ifndef APP
webviewStyles: {
type: Object
},
customStyle: {
type: [String, Object]
},
// #endif
isDisableScroll: {
type: Boolean,
default: false
},
isClickable: {
type: Boolean,
default: true
},
enableHover: {
type: Boolean,
default: false
},
beforeDelay: {
type: Number,
default: 30
}
})
const finished = ref(false)
const map = [] as EchartsResolve[]
const callbackMap = [] as EchartsResolve[]
// let context = null as UniWebViewElement | null
let chart = null as Echarts | null
let chartRef = ref<UniWebViewElement | null>(null)
const trigger = () => {
// #ifdef APP
if (finished.value) {
if (chart == null) {
chart = new Echarts(chartRef.value!)
}
while (map.length > 0) {
const resolve = map.pop() as EchartsResolve
resolve(chart!)
}
}
// #endif
// #ifdef H5
while (map.length > 0) {
if(chart != null){
const resolve = map.pop() as EchartsResolve
resolve(chart!)
}
}
// #endif
if(chart != null){
while(callbackMap.length > 0){
const callback = callbackMap.pop() as EchartsResolve
callback(chart!)
}
}
}
// #ifdef APP
const loaded = (event : WebViewLoadedEvent) => {
event.stopPropagation()
event.preventDefault()
finished.value = true
trigger()
emits('finished')
}
// #endif
const _next = () : boolean => {
if (chart == null) {
console.warn(`组件还未初始化,请先使用 init`)
return true
}
return false
}
const setOption = (option : UTSJSONObject) => {
if (_next()) return
chart!.setOption(option);
}
const showLoading = () => {
if (_next()) return
chart!.showLoading();
}
const hideLoading = () => {
if (_next()) return
chart!.hideLoading();
}
const clear = () => {
if (_next()) return
chart!.clear();
}
const dispose = () => {
if (_next()) return
chart!.dispose();
}
const resize = (size : UTSJSONObject) => {
if (_next()) return
chart!.resize(size);
}
const canvasToTempFilePath = (opt : UTSJSONObject) => {
if (_next()) return
chart!.canvasToTempFilePath(opt);
}
// function init() : Promise<Echarts> {
// return new Promise((resolve) => {
// map.push(resolve)
// trigger()
// })
// }
// #ifdef APP
function init(callback : ((chart : Echarts) => void) | null) : Promise<Echarts> {
// if (chart !== null && callback != null) {
// callback(chart!)
// } else {
// console.warn('echarts 未加载完成,您可以延时一下')
// }
if(callback!=null){
callbackMap.push(callback)
}
return new Promise<Echarts>((resolve) => {
map.push(resolve)
trigger()
})
}
// #endif
// #ifdef H5
const touchstart = (e) => {
if(chart == null) return
const handler = chart.getZr().handler;
const rect = chart.getZr().dom.getBoundingClientRect()
handler.dispatch('mousedown', {
zrX: e.touches[0].clientX - rect.left,
zrY: e.touches[0].clientY - rect.top
})
handler.dispatch('click', {
zrX: e.touches[0].clientX - rect.left,
zrY: e.touches[0].clientY - rect.top
})
}
const touchmove = (e) => {
if(chart == null) return
const handler = chart.getZr().handler;
const rect = chart.getZr().dom.getBoundingClientRect()
handler.dispatch('mousemove', {
zrX: e.touches[0].clientX - rect.left,
zrY: e.touches[0].clientY - rect.top
})
}
const mouseup = (e) => {
if(chart == null) return
const handler = chart.getZr().handler;
handler.dispatch('mousemove', {
zrX: 999999999,
zrY: 999999999
})
handler.dispatch('mouseup', {
zrX: 999999999,
zrY: 999999999
})
}
function init(echarts: any, ...args: any[]): Promise<Echarts>{
if(echarts == null){
console.error('请确保已经引入了 ECharts 库');
return Promise.reject('请确保已经引入了 ECharts 库');
}
let theme:string|null=null
let opts={}
let callback:Function|null=null;
args.forEach(item =>{
if(typeof item === 'function') {
callback = item
} else if(['string'].includes(typeof item)){
theme = item
} else if(typeof item === 'object'){
opts = item
}
})
chart = echarts.init(chartRef.value, theme, opts)
window.addEventListener('touchstart', touchstart)
window.addEventListener('touchmove', touchmove)
window.addEventListener('touchend', mouseup)
if(callback!=null && typeof callback == 'function'){
callbackMap.push(callback)
}
return new Promise<Echarts>((resolve) => {
map.push(resolve)
trigger()
})
}
onMounted(()=>{
finished.value = true
trigger()
emits('finished')
})
onUnmounted(()=>{
window.removeEventListener('touchstart', touchstart)
window.removeEventListener('touchmove', touchmove)
window.removeEventListener('touchend', mouseup)
})
// #endif
defineExpose({
init,
setOption,
showLoading,
hideLoading,
clear,
dispose,
resize,
canvasToTempFilePath
})
</script>
<style lang="scss">
.lime-echart {
flex: 1;
}
</style>