feat: 首次提交

This commit is contained in:
peerless_hero
2023-08-17 21:28:49 +08:00
parent 36f80fb971
commit ec1e5e16cd
571 changed files with 95322 additions and 0 deletions

View File

@ -0,0 +1,232 @@
<!--本文件由FirstUI授权予新疆天衡创新研究院有限公司手机号 1 8 614 0 72549身份证尾号5A07X5专用请尊重知识产权勿私下传播违者追究法律责任-->
<template>
<view @appear="handleAppear" class="fui-lazyload__wrap"
:style="{background:background,width:width==-1?'100%':width+'rpx',height:(height==0 || height==-1)?'auto':height+'rpx',borderRadius:radius+'rpx',marginTop:marginTop+'rpx',marginRight:marginRight+'rpx',marginBottom:marginBottom+'rpx',marginLeft:marginLeft+'rpx'}"
@tap="handleTap">
<image class="fui-lazyload__img" lazy-load :class="[visible?'fui-lazyload__visible':'fui-lazyload__hidden']"
:style="getStyl" :src="show?src:placeholder" :mode="(height==0 || height==-1)?'widthFix':mode" :webp="webp"
:draggable="draggable" @load="handleLoad" @error="handleError" :id="elId"></image>
<slot></slot>
</view>
</template>
<script>
export default {
name: "fui-lazyload",
emits: ['error', 'load', 'click'],
// #ifdef MP-WEIXIN
options: {
virtualHost: true
},
// #endif
props: {
src: {
type: String,
default: ''
},
width: {
type: [String, Number],
default: 320
},
height: {
type: [String, Number],
default: 320
},
radius: {
type: [String, Number],
default: 0
},
placeholder: {
type: String,
default: ''
},
background: {
type: String,
default: '#EEEEEE'
},
mode: {
type: String,
default: 'widthFix'
},
webp: {
type: Boolean,
default: false
},
draggable: {
type: Boolean,
default: true
},
marginTop: {
type: [String, Number],
default: 0
},
marginRight: {
type: [String, Number],
default: 0
},
marginBottom: {
type: [String, Number],
default: 0
},
marginLeft: {
type: [String, Number],
default: 0
},
param: {
type: [Number, String],
default: 0
}
},
computed: {
getStyl() {
const width = this.width == -1 ? '100%' : `${this.width}rpx`;
let style = `width:${width};border-radius:${this.radius}rpx;`;
// TODO如果有平台自适应不显示图片auto时将写法改为height:rpx;
if (this.height != 0 || this.height != -1) {
style += `height:${this.height}rpx;`
}
return style
}
},
data() {
return {
show: false,
visible: false,
isMounted: false,
elId: `fui_lazy_${Math.ceil(Math.random() * 10e5).toString(36)}`
};
},
created() {
this.visible = this.placeholder ? true : false;
this.observer = null;
},
// #ifndef APP-NVUE
mounted() {
this.isMounted = true
setTimeout(() => {
// #ifdef H5
if (window.self === window.top) {
this.startObserver()
} else {
//嵌套在iframe中
this.handleFade()
}
// #endif
// #ifndef H5
this.startObserver()
// #endif
}, 50)
},
// #endif
// #ifdef H5
updated() {
if(!this.isMounted){
this.handleFade()
}
},
// #endif
// #ifndef VUE3
beforeDestroy() {
this.endObserver()
},
// #endif
// #ifdef VUE3
beforeUnmount() {
this.endObserver()
},
// #endif
methods: {
handleFade() {
setTimeout(() => {
this.show = true
}, 200)
this.visible = false;
setTimeout(() => {
this.visible = true;
}, 500)
},
endObserver() {
if (this.observer) {
this.observer.disconnect()
this.observer = null;
}
},
startObserver() {
if (this.observer || this.show) return;
try {
const observer = uni.createIntersectionObserver(this)
observer.relativeToViewport({
bottom: 50
}).observe(`#${this.elId}`, (res) => {
if (res.intersectionRatio > 0 && !this.show) {
this.handleFade()
this.endObserver()
}
})
this.observer = observer
} catch (e) {
this.handleFade()
this.endObserver()
}
},
handleAppear(e) {
if (this.observer || this.show) return;
this.handleFade()
},
handleError(e) {
if (!this.show) return;
this.$emit('error', {
detail: e.detail,
param: this.param
})
},
handleLoad(e) {
if (!this.show) return;
this.$emit('load', {
detail: e.detail,
param: this.param
})
},
handleTap() {
this.$emit('click', {
param: this.param
})
}
}
}
</script>
<style scoped>
.fui-lazyload__wrap {
/* #ifndef APP-NVUE */
display: inline-flex;
flex-shrink: 0;
/* #endif */
position: relative;
}
.fui-lazyload__img {
/* #ifndef APP-NVUE */
display: block;
flex-shrink: 0;
/* #endif */
transition-duration: .35s;
transition-property: opacity;
transition-timing-function: linear;
}
.fui-lazyload__visible {
/* #ifndef APP-NVUE */
visibility: visible;
/* #endif */
opacity: 1;
}
.fui-lazyload__hidden {
/* #ifndef APP-NVUE */
visibility: hidden;
/* #endif */
opacity: 0;
}
</style>