Blizzard
123 lines
3.3 KiB
JavaScript
123 lines
3.3 KiB
JavaScript
/**
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* 全局底部悬浮播放控制条
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* 监听 app 事件总线，实时同步播放状态
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*/
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const app = getApp()
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Component({
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data: {
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activeContent: null,
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isPlaying: false,
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progressPercent: 0,
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currentTime: 0,
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duration: 0,
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show: false,
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channelIcon: '📻'
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},
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lifetimes: {
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attached() {
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// 初始化状态
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this._syncState()
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// 监听播放状态变化
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this._onPlayerChange = (state) => {
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this.setData({
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activeContent: state.activeContent,
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isPlaying: state.isPlaying,
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show: !!state.activeContent
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})
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this._computeIcon(state.activeContent)
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}
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app.on('playerStateChange', this._onPlayerChange)
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// 监听时间更新
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this._onTimeUpdate = (data) => {
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if (this._isSeeking) return
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if (data.duration > 0) {
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this.setData({
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currentTime: Math.floor(data.currentTime),
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duration: Math.floor(data.duration),
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progressPercent: Math.min((data.currentTime / data.duration) * 100, 100)
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})
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}
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}
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app.on('timeUpdate', this._onTimeUpdate)
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},
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detached() {
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app.off('playerStateChange', this._onPlayerChange)
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app.off('timeUpdate', this._onTimeUpdate)
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}
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},
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pageLifetimes: {
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show() {
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this._syncState()
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}
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},
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methods: {
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/**
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* 同步播放器状态
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*/
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_syncState() {
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const gd = app.globalData
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this.setData({
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activeContent: gd.activeContent,
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isPlaying: gd.isPlaying,
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show: !!gd.activeContent,
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currentTime: Math.floor(gd.currentTime || 0),
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duration: Math.floor(gd.duration || 0),
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progressPercent: gd.duration > 0
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? Math.min((gd.currentTime / gd.duration) * 100, 100)
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: 0
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})
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this._computeIcon(gd.activeContent)
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},
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/**
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* 获取频道 emoji（后端直接返回 emoji 字符、存在 cover 字段中）
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*/
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_computeIcon(content) {
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if (!content) return
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const ch = content.channel || {}
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var icon = ch.cover || ch.icon || content.cover || '📻'
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this.setData({ channelIcon: icon })
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},
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/**
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* 切换播放/暂停
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*/
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onTogglePlay() {
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app.togglePlay()
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},
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/**
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* 跳转到播放器详情页
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*/
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goToPlayer() {
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wx.navigateTo({
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url: '/pages/player/index',
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routeType: 'none'
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})
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},
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/**
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* 进度条拖动中
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*/
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onProgressChanging(e) {
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this._isSeeking = true
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this.setData({ currentTime: e.detail.value })
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},
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/**
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* 进度条拖动结束
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*/
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onProgressChange(e) {
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this._isSeeking = false
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app.seekTo(e.detail.value)
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}
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}
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})
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