feat: 更新视频播放器组件，添加章节视频功能并优化返回逻辑
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235
components/course/chapter-video.vue
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235
components/course/chapter-video.vue
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<template>
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<view class="course-video">
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<view v-if="videoList.length > 0" class="video-player" :class="{'full-screen': isFullScreen}">
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<VideoPlayer
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ref="commonVideo"
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:videoTitle="videoTitle"
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:currentVideoIndex="currentVideoIndex"
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:currentVideoList="videoList"
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:http="http"
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:poster="cover"
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@unlockChangeVideo="unlockChangeVideo"
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@changeVideo="changeVideo"
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@fullScreenChange="changeScreen"
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/>
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</view>
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<view v-if="videoList.length > 0" style="height: 400rpx;"></view>
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<view class="course-info">
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<view class="course-flag">视频教学</view>
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<view class="course-title">课程：{{ course.courseTitle || '' }}</view>
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<view class="chapter-title">章节：{{ course.chapterTitle || '' }}</view>
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<view v-if="videoList.length > 0" scroll-x="true" class="video-list">
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<view v-for="(v, i) in videoList" :class="`video_item ${currentVideo.id == v.id ? 'active' : ''}`"
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@click="handleClick(v,i)">
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【{{ v.type == "2" ? "音频" : "视频" }}】{{ getNumber(i + 1) }}
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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import VideoPlayer from '@/components/video-player/index.vue'
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import { BEFORE_NAVIGATE_BACK_EVENT } from '@/components/nav-bar/back-events'
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export default {
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components: {
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VideoPlayer,
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},
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props: {
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course: {
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type: Object,
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default: () => ({
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courseTitle: '',
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chapterTitle: '',
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}),
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},
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cover: {
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type: String,
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default: '',
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},
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videoList: {
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type: Array,
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default: () => [],
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},
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currentIndex: {
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type: Number,
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default: 0,
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},
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http: {
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type: Object,
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default: () => {},
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},
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},
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computed: {
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videoTitle() {
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return (this.course.chapterTitle || '') + ' ' + (this.getNumber(this.currentVideoIndex + 1))
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},
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},
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watch: {
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videoList: {
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handler(newVal) {
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this.currentVideoIndex = this.currentIndex;
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if (newVal.length > 0) {
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this.currentVideo = newVal[this.currentVideoIndex];
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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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data() {
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return {
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currentVideoIndex: this.currentIndex,
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currentVideo: this.videoList[this.currentVideoIndex] || {},
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screenLoading: false,
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isFullScreen: false,
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changeVideoLock: false,
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_backHandler: null,
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}
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},
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created() {
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this._bindBackEvent()
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},
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beforeUnmount() {
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this._unbindBackEvent()
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this.unload()
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},
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beforeDestroy() {
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this._unbindBackEvent()
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this.unload()
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},
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methods: {
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_bindBackEvent() {
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if (this._backHandler) return
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this._backHandler = () => { this.unload() }
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uni.$on(BEFORE_NAVIGATE_BACK_EVENT, this._backHandler)
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},
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_unbindBackEvent() {
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if (!this._backHandler) return
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uni.$off(BEFORE_NAVIGATE_BACK_EVENT, this._backHandler)
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this._backHandler = null
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},
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unload() {
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this.$refs.commonVideo && this.$refs.commonVideo.unload && this.$refs.commonVideo.unload()
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},
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handleClick(v, i) {
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if (this.changeVideoLock) {
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uni.showToast({
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title: '操作太频繁了',
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icon: 'none',
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})
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return
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}
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this.currentVideoIndex = i;
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this.currentVideo = v;
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this.changeVideo(this.currentVideoIndex);
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},
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changeVideo(currentVideoIndex, type) {
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switch (type) {
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case 'next':
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this.currentVideoIndex = currentVideoIndex + 1;
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break;
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case 'prev':
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this.currentVideoIndex = currentVideoIndex - 1;
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break;
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default:
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this.currentVideoIndex = currentVideoIndex;
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break;
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}
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this.currentVideo = this.videoList[this.currentVideoIndex];
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},
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getNumber(num) {
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return num >= 10 ? num : `0${num}`;
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},
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changeScreenLoading(status) {
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this.screenLoading = status;
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},
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changeScreen(status) {
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this.isFullScreen = status;
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},
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unlockChangeVideo() {
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this.changeVideoLock = false
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},
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initVideo() {
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this.changeVideoLock = true
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this.screenLoading = false;
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this.$nextTick(() => {
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if (this.currentVideo.type != 2 && this.$refs.commonVideo && this.$refs.commonVideo.init) {
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this.$refs.commonVideo.init({
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currentVideo: this.currentVideo,
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currentVideoList: this.videoList,
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});
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}
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this.changeVideoLock = false
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});
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},
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},
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}
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</script>
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<style lang="scss" scoped>
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.video-player {
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position: fixed;
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left: 0;
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width: 100%;
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height: 400rpx;
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z-index: 2;
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background-color: #000;
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&.full-screen {
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z-index: 9999999;
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}
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}
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.course-info {
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padding: 20rpx;
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}
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.course-flag {
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font-size: 40rpx; color: #3983FF;
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font-family: PangMenZhengDaoBiaoTiTiMianFeiBan;
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padding: 20rpx 0;
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}
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.course-title {
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font-size: 32rpx;
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line-height: 1.2;
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padding: 20rpx 0;
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}
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.chapter-title {
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font-size: 28rpx;
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line-height: 1.2;
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padding: 20rpx 0;
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}
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.video-list {
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width: 100%;
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display: flex;
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flex-wrap: wrap;
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justify-content: flex-start;
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align-items: center;
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gap: 20rpx;
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padding: 20rpx 0;
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margin-top: 10rpx;
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.video_item {
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display: flex;
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flex-wrap: wrap;
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justify-content: center;
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align-items: center;
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background: #fff;
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color: #5188e5;
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border-radius: 10rpx;
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line-height: 1;
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border: 1px solid #5188e5;
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box-shadow: 0px 0px 6rpx 0px rgba(255, 255, 255, 1);
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padding: 18rpx 20rpx;
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font-weight: bold;
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font-size: 28rpx;
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&:nth-child(4n) {
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margin-right: 0;
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}
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&.active {
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background-color: #5188e5 !important;
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color: #fff !important;
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}
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}
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}
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</style>
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