veterans_H5/h5_web/pages/skillsTraining/courseDetailed/courseDetailed.vue

<template>
	<view class="details">
		<u-navbar back-text="" title="" back-icon-color="#FFFFFF" :background="{ background: '#3D5D4C' }"
			:border-bottom="false"></u-navbar>
		<!-- 视频 -->
		<view class="details-video" v-if="isPlay">
			<video class="details-video-con" id="myVideo" @timeupdate="timeUpdate" :src="videoInfo.videoUrl" controls
				:initial-time="initial_time" object-fit="fill" play-btn-position="center" @ended="ended"
				@tap="videoClick" @loadedmetadata="loadedmetadata">
				<cover-view class="video-control">
					<cover-view class="multi rate" @tap.stop="showSwitchRate">x {{ currentRate }}</cover-view>
				</cover-view>
				<cover-view class="multi-list rate" :class="{ active: rateShow }">
					<cover-view v-for="(item, index) in ['0.5', '1.0', '1.5', '2.0']" :key="index"
						class="multi-item rate" :data-rate="item" @tap="switchRate"
						:class="{ active: item == currentRate }">
						{{ item }}
					</cover-view>
				</cover-view>
			</video>
		</view>
		<!-- 介绍 -->
		<view class="details-content">
			<view class="details-content-title">{{ videoInfo.chapterName }}</view>
			<view class="details-content-progress">本课程
				共{{ info.amount }}课，已学完{{ info.finishCount }}课，共进度{{ info.finishPercent || 0 }}%</view>
			<view class="details-content-teacher">主讲老师：{{ info.presenter }}</view>
			<view class="details-content-info">{{ videoInfo.chapterInfo }}</view>
		</view>

		<!-- 课程章节 -->
		<view class="details-classes">
			<view class="details-classes-header">
				<view>精选课程</view>
				<view>
					更多
					<u-icon name="arrow-right" size="22" color="#A3A3A3" />
				</view>
			</view>
			<view class="details-classes-list">
				<view class="details-classes-list-item" v-for="(item, index) in info.chapterList" :key="index"
					:class="{ active: index === videoIndex }" @click="classesClick(index)">
					<view>{{ index + 1 }}</view>
					<view>{{ item.flag === 2 ? '已学' : item.finishPercent + '%' }}</view>
				</view>
			</view>
		</view>
		<view class="details-line">
			<view></view>
		</view>
		<!-- 评论 -->
		<view class="details-comment">
			<view class="details-comment-header">
				<view>课程评论</view>
				<view>共{{ total }}条评论</view>
			</view>
			<view class="details-comment-list">
				<view class="details-comment-list-item" v-for="(item, index) in commentList" :key="index">
					<view class="left">
						<u-avatar :src="item.createByAvatar" size="96" mode="square"></u-avatar>
					</view>
					<view class="right">
						<view>{{ item.createBy }}</view>
						<view>
							<u-rate :count="5" size="28" disabled="" active-color="#FFBC00" v-model="item.starLevel">
							</u-rate>
							<text>{{ item.createTime }}</text>
						</view>
						<view>{{ item.content }}</view>
					</view>
				</view>
			</view>
			<view class="details-comment-page" v-if="total">
				<wyb-pagination :padding="0" :totalItems="total" :current="query.pageNum" @change="pageChange" />
			</view>

			<view class="details-comment-mine"><text>我的评论</text></view>

			<view class="details-comment-conent">
				<view class="details-comment-conent-star">
					<u-rate :count="5" size="40" active-color="#FFBC00" v-model="form.starLevel"></u-rate>
				</view>
				<view class="details-comment-content-textarea">
					<u-input v-model="form.content" placeholder="请输入您的评价" type="textarea"
						:custom-style="{ backgroundColor: '#F5F5F5', padding: '30rpx', borderRadius: '10rpx', minHeight: '280rpx' }">
					</u-input>
				</view>
				<view class="details-comment-conent-button" @click="submitCommet">提交</view>
			</view>
		</view>
		<u-toast ref="uToast" />
	</view>
</template>

<script>
	import wybPagination from '@/components/wyb-pagination/wyb-pagination.vue';
	export default {
		data() {
			return {
				info: {},
				videoContext: uni.createVideoContext('myVideo', this),
				videoInfo: {},
				videoIndex: 0,
				// 视频实时时间
				initial_time: 0,
				// 视频已经播放时间
				playedTime: 0,
				rateShow: false, // 倍速浮层
				currentRate: 1.0, // 默认倍速
				// 视频实际时间
				video_real_time: 0,
				classesId: '',
				isPlay: true,
				query: {
					pageNum: 1,
					pageSize: 5,
					tabId: ''
				},
				total: 0,
				commentList: [],
				form: {
					tabId: '',
					starLevel: 0,
					content: ''
				},
				currentDuration: 0,
				duration: 0,
				isApply: 1
			};
		},
		onLoad(page) {
			if (page.id) {
				this.getClassesDetails(page.id);
				this.classesId = page.id;
				this.query.tabId = this.classesId
				this.form.tabId = this.classesId
				this.isApply = page.isApply || 1
			}
		},
		beforeDestroy() {
			this.confirmSubmitDuration();
		},
		methods: {
			/**
			 * 获取视频总时长
			 * @param {Object} data
			 */
			loadedmetadata(data) {
				this.duration = data.detail.duration;
			},
			/**
			 * 显示倍速浮层
			 * @param {Object} rate
			 */
			showSwitchRate(rate) {
				let that = this;
				that.rateShow = true;
			},
			/**
			 * 切换倍速
			 * @param {Object} e
			 */
			switchRate(e) {
				let that = this;
				let rate = Number(e.currentTarget.dataset.rate);
				that.currentRate = rate;
				that.rateShow = false;
				this.videoContext.playbackRate(rate);
			},
			/**
			 * 视频点击
			 * @param {Object} e
			 */
			videoClick(e) {
				this.rateShow = false;
			},
			/**
			 * 获取课程详情
			 * @param {Object} id
			 */
			getClassesDetails(id) {
				this.$u.api.school
					.getPackageCourseDetail({
						id
					})
					.then(res => {
						if (res.code === 200) {
							this.info = res.data;
							this.videoInfo = res.data.chapterList[this.videoIndex];
							this.initial_time = Number(res.data.chapterList[this.videoIndex].currentDuration);
							this.video_real_time = Number(res.data.chapterList[this.videoIndex].playDuration);
							this.playedTime = Number(res.data.chapterList[this.videoIndex].playDuration);
							this.query.pageNum = 1;
							this.isPlay = true;
							this.getCommentList();
						}
					});
			},
			/**
			 * 课程章节点击
			 * @param {Object} index
			 */
			classesClick(index) {
				this.isPlay = false;
				let playDuration = this.video_real_time;
				if (this.videoInfo.playDuration > this.video_real_time) {
					this.currentDuration = this.video_real_time;
					playDuration = this.videoInfo.playDuration;
				} else {
					this.currentDuration = this.video_real_time;
				}
				this.submitTimeLong({
						tabId: this.videoInfo.id,
						playDuration: playDuration,
						duration: this.duration,
						currentDuration: this.currentDuration
					},
					index
				);
			},
			/**
			 * 控制视频不能快进
			 * @param {Object} e
			 */
			timeUpdate(e) {
				//播放的总时长
				let duration = e.detail.duration;
				//实时播放进度 秒数
				let jumpTime = parseInt(e.detail.currentTime);
				//当前视频进度
				if (jumpTime - this.playedTime > 3) {
					// 差别过大，调用seek方法跳转到实际观看时间
					this.videoContext.seek(this.playedTime);
					wx.showToast({
						title: '未完整看完该视频，不能快进',
						icon: 'none',
						duration: 2000
					});
				} else {
					this.video_real_time = parseInt(e.detail.currentTime);
					if (this.video_real_time > this.playedTime) {
						this.playedTime = this.video_real_time;
					}
				}
				if (parseInt(this.duration) !== 0 && parseInt(this.duration) === parseInt(this.video_real_time)) {
					this.videoContext.pause();
					this.confirmSubmitDuration();
				}
			},
			/**
			 * 视频结束
			 */
			ended() {
				// 用户把进度条拉到最后，但是实际观看时间不够，跳转回去会自动暂停。
				// 这里加个判断。
				if (this.playedTime < this.duration) {
					this.videoContext.play();
				}
			},
			/**
			 * 提交课程时长
			 */
			submitTimeLong({
				tabId,
				playDuration,
				currentDuration,
				duration
			}, index, flag) {
				if (tabId) {
					this.$u.api.training
						.videoTimeLongApi({
							tabId,
							playDuration,
							currentDuration,
							duration
						})
						.then(res => {
							if (res.code === 200) {
								if (!flag) {
									this.$refs.uToast.show({
										title: '已记录章节时长!',
										type: 'success'
									});
									this.videoInfo = this.info.chapterList[index];
									this.videoIndex = index;
									this.getClassesDetails(this.classesId);
								}
							} else {
								this.$refs.uToast.show({
									title: res.msg,
									type: 'error'
								});
							}
						});
				}
			},
			/**
			 * 获取评论列表
			 */
			getCommentList() {
				if (this.query.tabId) {
					this.$u.api.training.getClassesCommentApi(this.query).then(res => {
						if (res.code === 200) {
							this.total = Number(res.total);
							this.commentList = res.rows;
						}
					});
				}
			},
			/**
			 * @param {Object} e 分页触发
			 */
			pageChange(e) {
				this.query.pageNum = e.current;
				this.getCommentList();
			},
			/**
			 * 提交评论
			 */
			submitCommet() {
				if (this.form.tabId) {
					if (this.form.starLevel && this.form.content) {
						this.$u.api.training.addClassesCommentApi(this.form).then(res => {
							if (res.code === 200) {
								this.$refs.uToast.show({
									title: '评论成功!',
									type: 'success'
								});
								this.form.content = '';
								this.form.starLevel = 0;
								this.getCommentList();
							} else {
								this.$refs.uToast.show({
									title: res.msg,
									type: 'error'
								});
							}
						});
					}
					if (!this.form.starLevel) {
						this.$refs.uToast.show({
							title: '请选择星级',
							type: 'warning'
						});
					}
					if (!this.form.content) {
						this.$refs.uToast.show({
							title: '请输入评论内容',
							type: 'warning'
						});
					}
				} else {
					this.$refs.uToast.show({
						title: '未找到课程章节,无法提交评论!',
						type: 'warning'
					});
				}
			},
			confirmSubmitDuration() {
				let playDuration = this.video_real_time;
				if (this.videoInfo.playDuration > this.video_real_time) {
					this.currentDuration = this.video_real_time;
					playDuration = this.videoInfo.playDuration;
				} else {
					this.currentDuration = this.video_real_time;
				}
				if (Number(this.isApply) === 1) {
					this.submitTimeLong({
							tabId: this.videoInfo.id,
							playDuration: playDuration,
							currentDuration: this.currentDuration,
							duration: this.duration
						},
						0,
						true
					);
				}
			}
		}
	};
</script>

<style lang="scss" scoped>
	@import './courseDetailed.scss';
</style>