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+<template>
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+ <!-- #ifndef APP-NVUE -->
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+ <view
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+ v-if="isShow"
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+ ref="ani"
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+ :animation="animationData"
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+ :class="customClass"
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+ :style="transformStyles"
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+ @click="onClick">
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+ <slot></slot>
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+ </view>
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+ <!-- #endif -->
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+ <!-- #ifdef APP-NVUE -->
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+ <view
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+ v-if="isShow"
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+ ref="ani"
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+ :animation="animationData"
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+ :class="customClass"
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+ :style="transformStyles"
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+ @click="onClick">
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+ <slot></slot>
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+ </view>
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+ <!-- #endif -->
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+</template>
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+<script>
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+ import mpMixin from '@/uni_modules/uv-ui-tools/libs/mixin/mpMixin.js'
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+ import mixin from '@/uni_modules/uv-ui-tools/libs/mixin/mixin.js'
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+ import { createAnimation } from './createAnimation'
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+ /**
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+ * transition 动画组件
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+ * @description
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+ * @tutorial
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+ * @property {Boolean} show 控制组件显示或关闭 (默认 false )
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+ * @property {Array | String } mode 内置过渡动画类型 (默认 'fade' )
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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-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 slide-right 由右至左过渡
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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 {String | Number} duration 动画的执行时间,单位ms (默认 300 )
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+ * @property {String} timingFunction 使用的动画过渡函数 (默认 'ease-out' )
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+ * @property {Object} customStyle 自定义样式
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+ * @property {String} customClass 自定义类名
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+ * @event {Function} click 点击组件触发
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+ * @event {Function} change 过渡动画结束时触发
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+ * @example
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+ */
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+ export default {
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+ name: 'uv-transition',
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+ mixins: [mpMixin,mixin],
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+ emits:['click','change'],
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+ props: {
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+ // 是否展示组件
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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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+ // 使用的动画模式
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+ mode: {
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+ type: [Array, String, null],
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+ default() {
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+ return 'fade'
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+ }
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+ },
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+ // 动画的执行时间,单位ms
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+ duration: {
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+ type: [String, Number],
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+ default: 300
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+ },
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+ // 使用的动画过渡函数
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+ timingFunction: {
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+ type: String,
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+ default: 'ease-out'
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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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+ // nvue模式下 是否直接显示,在uv-list等cell下面使用就需要设置
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+ cellChild: {
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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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+ // 初始化动画条件
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+ transformStyles() {
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+ const style = {
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+ transform: this.transform,
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+ opacity: this.opacity,
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+ ...this.$uv.addStyle(this.customStyle),
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+ 'transition-duration': `${this.duration / 1000}s`
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+ };
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+ return this.$uv.addStyle(style,'string');
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+ }
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+ },
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+ created() {
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+ // 动画默认配置
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+ this.config = {
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+ duration: this.duration,
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+ timingFunction: this.timingFunction,
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+ transformOrigin: '50% 50%',
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+ delay: 0
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+ };
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+ this.durationTime = this.duration;
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+ },
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+ methods: {
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+ /**
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+ * ref 触发 初始化动画
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+ */
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+ init(obj = {}) {
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+ if (obj.duration) {
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+ this.durationTime = obj.duration;
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+ }
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+ this.animation = createAnimation(Object.assign(this.config, obj),this);
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+ },
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+ /**
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+ * 点击组件触发回调
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+ */
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+ onClick() {
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+ this.$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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+ // #ifdef APP-NVUE
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+ if(this.cellChild) {
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+ this.opacity = 1;
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+ } else{
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+ this.animation.run();
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+ }
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+ // #endif
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+ // #ifndef APP-NVUE
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+ this.animation.run();
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+ // #endif
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+ // #ifdef VUE3
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+ // #ifdef H5
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+ this.opacity = 1;
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+ // #endif
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+ // #endif
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+ this.$emit('change', {
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+ detail: this.isShow
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+ })
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+ }, 20);
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+ })
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+ },
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+ // 关闭过渡动画
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+ close(type) {
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+ if (!this.animation) return;
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+ this.tranfromInit(true)
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+ .step()
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+ .run(() => {
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+ this.isShow = false;
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+ this.animationData = null;
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+ this.animation = null;
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+ let { opacity, transform } = this.styleInit(false);
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+ this.opacity = opacity || 1;
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+ this.transform = transform;
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+ this.$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.mode === 'string') {
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+ buildStyle(type, this.mode);
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+ } else {
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+ this.mode.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.mode === 'string') {
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+ buildTranfrom(type, this.mode)
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+ } else {
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+ this.mode.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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