vue 模拟视频进度条组件（可支持点击，拖拽）_vue时间轴 视频拖动条

videoProgress.vue

<template>
    <div
        ref="progressWrapper"
        class="video-progress"
        @click="onTrackClick"
        @mousemove="mouseMove">
        <div class="video-progress-track" :style="{ 'width': progress + '%'}"></div>
        <div class="video-progress-point" ref="slider" :style="{ 'left': progress + '%'}" @mousedown="mouseDown"></div>
    </div>
</template>
<script>
export default {
    props: {
        progress: {
            type: Number,
            default: 0
        }
    },
    data() {
        return {
            isDrag: false,
            distanceX: 0,
            videoProgress: 0
        }
    },
    watch: {
        isDrag(val) {
            this.$emit('getDragStatus', val)
        },
        progress(val) {
            if (this.$refs.progressWrapper) {
                this.videoProgress = (this.progress * (this.$refs.progressWrapper.offsetWidth * this.zoom)) / 100
            }
        }
    },
    methods: {
        onTrackClick(event) {
            this.isDrag = false
            const sliderElement = this.$refs.slider
            if (event.target === sliderElement) return
            this.calculateDiatance(event.offsetX)
        },
        mouseDown(event) {
            if (this.progress === 100) return
            this.isDrag = true
            this.distanceX = event.pageX - this.videoProgress
            document.addEventListener('mouseup', () => {
                this.isDrag = false
            })
        },
        mouseMove(event) {
            if (this.isDrag) {
                const offsetX = event.pageX - this.distanceX
                this.calculateDiatance(offsetX)
            }
        },
        calculateDiatance(pageX) {
            const parentWidth = this.$refs.progressWrapper.offsetWidth
            const sliderWidth = this.$refs.slider.offsetWidth
            if (pageX > parentWidth - sliderWidth) {
     
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