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287 lines
6.7 KiB
287 lines
6.7 KiB
5 months ago
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<template>
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<!-- #ifndef APP-NVUE -->
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<view v-show="isShow" ref="ani" :animation="animationData" :class="customClass" :style="transformStyles" @click="onClick"><slot></slot></view>
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<!-- #endif -->
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<!-- #ifdef APP-NVUE -->
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<view v-if="isShow" ref="ani" :animation="animationData" :class="customClass" :style="transformStyles" @click="onClick"><slot></slot></view>
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<!-- #endif -->
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</template>
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<script>
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import { createAnimation } from './createAnimation'
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/**
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* Transition 过渡动画
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* @description 简单过渡动画组件
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* @tutorial https://ext.dcloud.net.cn/plugin?id=985
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* @property {Boolean} show = [false|true] 控制组件显示或隐藏
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* @property {Array|String} modeClass = [fade|slide-top|slide-right|slide-bottom|slide-left|zoom-in|zoom-out] 过渡动画类型
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* @value fade 渐隐渐出过渡
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* @value slide-top 由上至下过渡
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* @value slide-right 由右至左过渡
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* @value slide-bottom 由下至上过渡
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* @value slide-left 由左至右过渡
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* @value zoom-in 由小到大过渡
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* @value zoom-out 由大到小过渡
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* @property {Number} duration 过渡动画持续时间
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* @property {Object} styles 组件样式，同 css 样式，注意带’-‘连接符的属性需要使用小驼峰写法如：`backgroundColor:red`
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*/
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export default {
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name: 'uniTransition',
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emits:['click','change'],
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props: {
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show: {
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type: Boolean,
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default: false
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},
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modeClass: {
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type: [Array, String],
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default() {
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return 'fade'
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}
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},
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duration: {
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type: Number,
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default: 300
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},
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styles: {
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type: Object,
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default() {
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return {}
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}
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},
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customClass:{
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type: String,
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default: ''
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},
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onceRender:{
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type:Boolean,
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default:false
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},
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},
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data() {
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return {
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isShow: false,
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transform: '',
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opacity: 1,
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animationData: {},
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durationTime: 300,
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config: {}
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}
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},
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watch: {
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show: {
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handler(newVal) {
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if (newVal) {
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this.open()
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} else {
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// 避免上来就执行 close,导致动画错乱
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if (this.isShow) {
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this.close()
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}
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}
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},
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immediate: true
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}
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},
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computed: {
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// 生成样式数据
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stylesObject() {
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let styles = {
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...this.styles,
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'transition-duration': this.duration / 1000 + 's'
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}
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let transform = ''
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for (let i in styles) {
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let line = this.toLine(i)
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transform += line + ':' + styles[i] + ';'
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}
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return transform
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},
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// 初始化动画条件
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transformStyles() {
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return 'transform:' + this.transform + ';' + 'opacity:' + this.opacity + ';' + this.stylesObject
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}
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},
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created() {
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// 动画默认配置
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this.config = {
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duration: this.duration,
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timingFunction: 'ease',
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transformOrigin: '50% 50%',
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delay: 0
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}
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this.durationTime = this.duration
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},
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methods: {
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/**
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* ref 触发 初始化动画
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*/
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init(obj = {}) {
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if (obj.duration) {
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this.durationTime = obj.duration
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}
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this.animation = createAnimation(Object.assign(this.config, obj),this)
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},
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/**
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* 点击组件触发回调
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*/
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onClick() {
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this.$emit('click', {
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detail: this.isShow
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})
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},
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/**
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* ref 触发 动画分组
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* @param {Object} obj
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*/
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step(obj, config = {}) {
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if (!this.animation) return
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for (let i in obj) {
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try {
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if(typeof obj[i] === 'object'){
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this.animation[i](...obj[i])
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}else{
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this.animation[i](obj[i])
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}
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} catch (e) {
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console.error(`方法 ${i} 不存在`)
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}
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}
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this.animation.step(config)
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return this
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},
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/**
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* ref 触发 执行动画
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*/
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run(fn) {
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if (!this.animation) return
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this.animation.run(fn)
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},
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// 开始过度动画
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open() {
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clearTimeout(this.timer)
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this.transform = ''
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this.isShow = true
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let { opacity, transform } = this.styleInit(false)
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if (typeof opacity !== 'undefined') {
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this.opacity = opacity
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}
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this.transform = transform
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// 确保动态样式已经生效后，执行动画，如果不加 nextTick ，会导致 wx 动画执行异常
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this.$nextTick(() => {
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// TODO 定时器保证动画完全执行，目前有些问题，后面会取消定时器
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this.timer = setTimeout(() => {
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this.animation = createAnimation(this.config, this)
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this.tranfromInit(false).step()
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this.animation.run()
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this.$emit('change', {
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detail: this.isShow
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})
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}, 20)
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})
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},
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// 关闭过度动画
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close(type) {
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if (!this.animation) return
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this.tranfromInit(true)
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.step()
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.run(() => {
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this.isShow = false
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this.animationData = null
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this.animation = null
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let { opacity, transform } = this.styleInit(false)
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this.opacity = opacity || 1
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this.transform = transform
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this.$emit('change', {
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detail: this.isShow
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})
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})
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},
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// 处理动画开始前的默认样式
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styleInit(type) {
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let styles = {
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transform: ''
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}
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let buildStyle = (type, mode) => {
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if (mode === 'fade') {
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styles.opacity = this.animationType(type)[mode]
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} else {
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styles.transform += this.animationType(type)[mode] + ' '
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}
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}
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if (typeof this.modeClass === 'string') {
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buildStyle(type, this.modeClass)
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} else {
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this.modeClass.forEach(mode => {
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buildStyle(type, mode)
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})
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}
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return styles
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},
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// 处理内置组合动画
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tranfromInit(type) {
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let buildTranfrom = (type, mode) => {
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let aniNum = null
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if (mode === 'fade') {
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aniNum = type ? 0 : 1
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} else {
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aniNum = type ? '-100%' : '0'
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if (mode === 'zoom-in') {
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aniNum = type ? 0.8 : 1
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}
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if (mode === 'zoom-out') {
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aniNum = type ? 1.2 : 1
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}
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if (mode === 'slide-right') {
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aniNum = type ? '100%' : '0'
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}
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if (mode === 'slide-bottom') {
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aniNum = type ? '100%' : '0'
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}
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}
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this.animation[this.animationMode()[mode]](aniNum)
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}
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if (typeof this.modeClass === 'string') {
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buildTranfrom(type, this.modeClass)
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} else {
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this.modeClass.forEach(mode => {
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buildTranfrom(type, mode)
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})
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}
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return this.animation
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},
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animationType(type) {
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return {
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fade: type ? 1 : 0,
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'slide-top': `translateY(${type ? '0' : '-100%'})`,
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'slide-right': `translateX(${type ? '0' : '100%'})`,
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'slide-bottom': `translateY(${type ? '0' : '100%'})`,
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'slide-left': `translateX(${type ? '0' : '-100%'})`,
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'zoom-in': `scaleX(${type ? 1 : 0.8}) scaleY(${type ? 1 : 0.8})`,
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'zoom-out': `scaleX(${type ? 1 : 1.2}) scaleY(${type ? 1 : 1.2})`
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}
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},
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// 内置动画类型与实际动画对应字典
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animationMode() {
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return {
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fade: 'opacity',
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'slide-top': 'translateY',
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'slide-right': 'translateX',
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'slide-bottom': 'translateY',
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'slide-left': 'translateX',
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'zoom-in': 'scale',
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'zoom-out': 'scale'
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}
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},
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// 驼峰转中横线
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toLine(name) {
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return name.replace(/([A-Z])/g, '-$1').toLowerCase()
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}
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}
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}
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</script>
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<style></style>
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