mirror of
https://github.com/jxxghp/MoviePilot-Frontend.git
synced 2026-05-11 18:10:49 +08:00
278 lines
7.8 KiB
TypeScript
278 lines
7.8 KiB
TypeScript
import { ref, computed, onMounted, onBeforeUnmount, readonly, watch } from 'vue'
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import { useDisplay } from 'vuetify'
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import { usePWA } from './usePWA'
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// 下拉手势配置类型
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export interface PullDownConfig {
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START_THRESHOLD: number // 开始下拉的最小距离
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SHOW_INDICATOR: number // 显示指示器的距离
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TRIGGER_THRESHOLD: number // 触发回调的距离
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MAX_PULL_DISTANCE: number // 最大下拉距离
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PULL_RESISTANCE: number // 下拉阻力系数
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CONTENT_FOLLOW_RATIO: number // 页面内容跟随比例
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TOLERANCE: number // 手指抖动容忍度
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}
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// 下拉手势选项
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export interface PullDownOptions {
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config?: Partial<PullDownConfig>
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// 检查是否可以使用下拉手势的函数
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canUsePullGesture?: () => boolean
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// 触发回调
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onTrigger?: () => void
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// 是否启用（默认true）
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enabled?: boolean
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}
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// 默认配置
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const DEFAULT_CONFIG: PullDownConfig = {
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START_THRESHOLD: 20,
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SHOW_INDICATOR: 60,
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TRIGGER_THRESHOLD: 100,
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MAX_PULL_DISTANCE: 200,
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PULL_RESISTANCE: 0.75,
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CONTENT_FOLLOW_RATIO: 0.4,
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TOLERANCE: 80,
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}
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export function usePullDownGesture(options: PullDownOptions = {}) {
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const display = useDisplay()
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const { appMode } = usePWA()
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// 合并配置
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const config = { ...DEFAULT_CONFIG, ...options.config }
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// 状态管理
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const isPulling = ref(false)
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const startY = ref(0)
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const pullDistance = ref(0)
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const initialScrollTop = ref(0)
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const hasDialogOpen = ref(false)
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const lastDialogCheckTime = ref(0)
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const DIALOG_CHECK_INTERVAL = 500
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// 计算属性
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const contentTransform = computed(() => {
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if (!isPulling.value || pullDistance.value <= 0) return 'translateY(0)'
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const moveDistance = pullDistance.value * config.CONTENT_FOLLOW_RATIO
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return `translateY(${moveDistance}px)`
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})
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const contentTransition = computed(() => {
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return isPulling.value ? 'none' : 'transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94)'
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})
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const showPullIndicator = computed(() => {
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return isPulling.value && pullDistance.value >= config.SHOW_INDICATOR
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})
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const indicatorRotation = computed(() => {
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if (!isPulling.value) return 0
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const progress = Math.min(
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(pullDistance.value - config.SHOW_INDICATOR) / (config.TRIGGER_THRESHOLD - config.SHOW_INDICATOR),
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1,
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)
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return progress * 180
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})
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const indicatorOpacity = computed(() => {
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if (!isPulling.value) return 0
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const progress = Math.min(
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(pullDistance.value - config.SHOW_INDICATOR) / (config.TRIGGER_THRESHOLD - config.SHOW_INDICATOR),
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1,
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)
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return 0.7 + progress * 0.3
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})
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const indicatorTransform = computed(() => {
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return `translate(-50%, ${Math.min(60 + pullDistance.value - config.SHOW_INDICATOR, 70)}px)`
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})
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// 弹窗检测函数
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const hasOpenDialog = (excludeSelector?: string) => {
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try {
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const dialogSelectors = [
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'.v-overlay--active:not(.v-overlay--scroll-blocked)',
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'.v-dialog--active',
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'.v-menu--active',
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'.v-bottom-sheet--active',
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'.v-snackbar--active',
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'[role="dialog"]:not([style*="display: none"])',
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'.modal:not(.d-none):not([style*="display: none"])',
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'[aria-modal="true"]:not([style*="display: none"])',
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]
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for (const selector of dialogSelectors) {
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const elements = document.querySelectorAll(selector)
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if (elements.length > 0) {
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// 如果需要排除特定元素（如QuickAccess面板）
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if (excludeSelector && elements.length === 1) {
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const element = elements[0]
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if (element.closest(excludeSelector)) {
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continue
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}
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}
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return true
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}
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}
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return false
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} catch (error) {
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console.warn('检测弹窗状态时出错:', error)
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return true
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}
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}
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// 事件处理函数
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const handleTouchStart = (event: TouchEvent) => {
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if (!appMode.value || !display.mdAndDown.value || !options.enabled) return
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// 检查是否可以使用下拉手势
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if (options.canUsePullGesture && !options.canUsePullGesture()) return
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// 检查是否有弹窗打开
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hasDialogOpen.value = hasOpenDialog('.quick-access-panel')
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lastDialogCheckTime.value = Date.now()
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if (hasDialogOpen.value) return
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const touch = event.touches[0]
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startY.value = touch.clientY
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// 重置下拉状态
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isPulling.value = false
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pullDistance.value = 0
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// 记录开始时的滚动位置
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initialScrollTop.value = window.scrollY || document.documentElement.scrollTop || 0
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}
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const handleTouchMove = (event: TouchEvent) => {
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if (!appMode.value || !display.mdAndDown.value || !options.enabled) return
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// 检查是否可以使用下拉手势
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if (options.canUsePullGesture && !options.canUsePullGesture()) return
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// 只在必要时重新检测弹窗
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const currentTime = Date.now()
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if (currentTime - lastDialogCheckTime.value > DIALOG_CHECK_INTERVAL) {
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hasDialogOpen.value = hasOpenDialog('.quick-access-panel')
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lastDialogCheckTime.value = currentTime
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}
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if (hasDialogOpen.value) {
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isPulling.value = false
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pullDistance.value = 0
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return
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}
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const touch = event.touches[0]
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const deltaY = touch.clientY - startY.value
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if (isPulling.value) {
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if (deltaY > -config.TOLERANCE) {
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pullDistance.value = Math.max(0, Math.min(deltaY * config.PULL_RESISTANCE, config.MAX_PULL_DISTANCE))
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event.preventDefault()
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} else {
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isPulling.value = false
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pullDistance.value = 0
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}
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} else {
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if (deltaY > config.START_THRESHOLD) {
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const currentScrollTop = window.scrollY || document.documentElement.scrollTop || 0
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if (currentScrollTop <= 100 && initialScrollTop.value <= 100) {
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isPulling.value = true
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pullDistance.value = Math.min(deltaY * config.PULL_RESISTANCE, config.MAX_PULL_DISTANCE)
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event.preventDefault()
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}
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}
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}
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}
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const handleTouchEnd = () => {
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if (!appMode.value || !display.mdAndDown.value || !options.enabled) return
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// 检查是否可以使用下拉手势
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if (options.canUsePullGesture && !options.canUsePullGesture()) return
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// 重置弹窗检测标志
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hasDialogOpen.value = false
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lastDialogCheckTime.value = 0
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if (isPulling.value && pullDistance.value >= config.TRIGGER_THRESHOLD) {
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// 达到触发阈值，执行回调
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options.onTrigger?.()
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}
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// 停止拖拽状态
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isPulling.value = false
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// 延迟重置其他状态
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setTimeout(() => {
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pullDistance.value = 0
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startY.value = 0
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}, 300)
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}
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// 生命周期管理
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let eventsAdded = false
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const addEventListeners = () => {
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if (!eventsAdded && appMode.value) {
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document.addEventListener('touchstart', handleTouchStart, { passive: false })
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document.addEventListener('touchmove', handleTouchMove, { passive: false })
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document.addEventListener('touchend', handleTouchEnd, { passive: true })
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eventsAdded = true
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}
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}
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const removeEventListeners = () => {
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if (eventsAdded) {
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document.removeEventListener('touchstart', handleTouchStart)
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document.removeEventListener('touchmove', handleTouchMove)
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document.removeEventListener('touchend', handleTouchEnd)
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eventsAdded = false
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}
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}
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// 监听 appMode 变化动态添加/移除事件监听器
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onMounted(() => {
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watch(
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appMode,
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newValue => {
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if (newValue) {
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addEventListeners()
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} else {
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removeEventListeners()
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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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onBeforeUnmount(() => {
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removeEventListeners()
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})
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return {
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// 状态
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isPulling: readonly(isPulling),
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pullDistance: readonly(pullDistance),
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// 计算属性
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contentTransform,
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contentTransition,
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showPullIndicator,
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indicatorRotation,
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indicatorOpacity,
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indicatorTransform,
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// 配置
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config,
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// 工具函数
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hasOpenDialog,
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}
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}
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