95 lines
2.6 KiB
JavaScript
95 lines
2.6 KiB
JavaScript
/**
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* 顶栏长连接通知：共享状态 + 只绑定一次 appWs:notice
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* 多页各挂 AppTopPushNotice 时，仅「页面栈顶」的实例展示（用 $root 与栈顶 $vm 比较）
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*/
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import Vue from 'vue'
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import { parseAppWsNoticeDisplay, formatNoticeTimeForBanner } from '@/common/utils/parseAppWsNotice.js'
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const HIDE_MS = 3000
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function _fingerprint(item) {
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if (item && item.id) return 'id:' + item.id
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return 't:' + (item.time || '') + '|' + (item.text || '')
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}
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function _createState() {
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// 非 H5/非 Vue2 时降级为普通对象
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if (typeof Vue !== 'undefined' && Vue.observable) {
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return Vue.observable({
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visible: false,
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enterActive: false,
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displayTime: '',
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displayText: '',
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displayPicture: '',
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gnpLastKey: '',
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gnpLastKeyAt: 0,
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gnpNoticeSeen: {},
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gnpHideTimer: null,
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})
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}
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return {
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visible: false,
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enterActive: false,
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displayTime: '',
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displayText: '',
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displayPicture: '',
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gnpLastKey: '',
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gnpLastKeyAt: 0,
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gnpNoticeSeen: {},
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gnpHideTimer: null,
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}
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}
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export const noticeTopState = _createState()
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let _bound = false
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function _onMsg(msg) {
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const item = parseAppWsNoticeDisplay(msg)
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if (!item || !String(item.text).trim()) return
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const key = _fingerprint(item)
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const now = Date.now()
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if (key === noticeTopState.gnpLastKey && now - (noticeTopState.gnpLastKeyAt || 0) < 2000) return
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if (item.id && noticeTopState.gnpNoticeSeen[item.id]) return
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if (item.id) {
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noticeTopState.gnpNoticeSeen = { ...noticeTopState.gnpNoticeSeen, [item.id]: 1 }
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}
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noticeTopState.gnpLastKey = key
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noticeTopState.gnpLastKeyAt = now
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noticeTopState.displayTime = formatNoticeTimeForBanner(item.time) || '—'
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noticeTopState.displayText = item.text
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noticeTopState.displayPicture = item.picture || ''
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if (noticeTopState.gnpHideTimer) {
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clearTimeout(noticeTopState.gnpHideTimer)
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noticeTopState.gnpHideTimer = null
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}
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noticeTopState.visible = true
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noticeTopState.enterActive = false
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// 与 index 内联版一致，下一帧后触发入场动画
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setTimeout(() => {
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noticeTopState.enterActive = true
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}, 30)
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noticeTopState.gnpHideTimer = setTimeout(() => {
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hideTopNotice()
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}, HIDE_MS)
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}
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export function hideTopNotice() {
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if (noticeTopState.gnpHideTimer) {
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clearTimeout(noticeTopState.gnpHideTimer)
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noticeTopState.gnpHideTimer = null
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}
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noticeTopState.enterActive = false
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setTimeout(() => {
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noticeTopState.visible = false
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noticeTopState.displayPicture = ''
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}, 220)
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}
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/** 在 App onLaunch 或首屏调用一次 */
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export function bindAppWsTopNoticeListenerOnce() {
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if (_bound) return
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_bound = true
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uni.$off('appWs:notice', _onMsg)
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uni.$on('appWs:notice', _onMsg)
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}
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