gengxin

2026-09-09 14:47:29 +08:00
parent 4d9da40abd
commit 65755c9e96
832 changed files with 412085 additions and 0 deletions
@@ -0,0 +1,145 @@
+// Keep the native Page lifecycle, but hydrate the correct account before any
+// story page reads/writes storage. This also covers cold starts from shares.
+const bridge = require('./platformBridge')
+const LIFECYCLE_METHODS = new Set(['onLoad', 'onShow', 'onReady', 'onHide', 'onUnload'])
+const CLEANUP_METHOD = /^(?:destroy|clear|unbind|pause|invalidate|beginPauseLock)/
+module.exports = function registerTangPage(options) {
+  function isCurrent(page) {
+    return !page.__tangDead && !page.__tangOriginalUnloaded
+      && page.__tangVisible && page.__tangScope === bridge.getScope()
+  }
+  function returnHome(page) {
+    if (page.__tangRedirected || page.__tangDead) return
+    page.__tangRedirected = true
+    wx.reLaunch({ url: '/tang-detective/pages/home/home' })
+  }
+  function cleanUp(page, name) {
+    if (!page.__tangLoaded || typeof options[name] !== 'function') return
+    if (name !== 'onUnload' && page.__tangOriginalUnloaded) return
+    if (name === 'onUnload') {
+      if (page.__tangOriginalUnloaded) return
+      page.__tangOriginalUnloaded = true
+    }
+    page.__tangCleaning = true
+    try {
+      options[name].call(page)
+    } finally {
+      // This exception is synchronous only; pending timers and audio callbacks
+      // regain the normal visible/account/dead guards as soon as cleanup ends.
+      page.__tangCleaning = false
+    }
+  }
+  function deliverReady(page) {
+    if (!isCurrent(page) || !page.__tangLoaded || !page.__tangHasShown
+      || !page.__tangReadyRequested || page.__tangReadyDelivered) return
+    page.__tangReadyDelivered = true
+    if (typeof options.onReady === 'function') options.onReady.call(page)
+  }
+  const guarded = { ...options }
+  Object.keys(options).forEach(key => {
+    // Event handlers such as onAudioTimeUpdate are ordinary guarded methods,
+    // even though their names begin with "on".
+    if (typeof options[key] !== 'function' || LIFECYCLE_METHODS.has(key)) return
+    guarded[key] = function (...args) {
+      if (this.__tangCleaning) {
+        // Release resources across an account change, but do not run helpers
+        // such as saveCurrentAudioTime against the newly selected account.
+        if (this.__tangScope === bridge.getScope() || CLEANUP_METHOD.test(key)) {
+          return options[key].apply(this, args)
+        }
+        return
+      }
+      if (this.__tangDead || this.__tangOriginalUnloaded || !this.__tangLoaded || !this.__tangVisible) return
+      if (this.__tangScope && this.__tangScope !== bridge.getScope()) {
+        returnHome(this)
+        return
+      }
+      return options[key].apply(this, args)
+    }
+  })
+  Page({
+    ...guarded,
+    data: { ...(options.data || {}), tangBootPending: true },
+    tangIgnoreBootTap() {},
+    onLoad(query) {
+      this.__tangQuery = query
+      this.__tangScope = bridge.getScope()
+      this.__tangDead = false
+      this.__tangVisible = false
+      this.__tangLoaded = false
+      this.__tangCleaning = false
+      this.__tangOriginalUnloaded = false
+      this.__tangRedirected = false
+      this.__tangShowGeneration = 0
+      this.__tangReadyRequested = false
+      this.__tangReadyDelivered = false
+      this.__tangHasShown = false
+      const nativeSetData = this.setData
+      this.setData = function (...args) {
+        if (this.__tangScope !== bridge.getScope()) return
+        if (!this.__tangCleaning && !isCurrent(this)) return
+        return nativeSetData.apply(this, args)
+      }
+      this.__tangBoot = bridge.open()
+    },
+    onShow() {
+      if (this.__tangDead) return
+      this.__tangVisible = true
+      const generation = ++this.__tangShowGeneration
+      const scope = bridge.getScope()
+      if (this.__tangOriginalUnloaded || scope !== this.__tangScope) {
+        returnHome(this)
+        return
+      }
+      Promise.resolve(this.__tangBoot).then(() => {
+        if (this.__tangDead || !this.__tangVisible || generation !== this.__tangShowGeneration) return
+        if (bridge.getScope() !== scope) {
+          returnHome(this)
+          return
+        }
+        if (!this.__tangLoaded) {
+          this.__tangLoaded = true
+          if (options.onLoad) options.onLoad.call(this, this.__tangQuery)
+          if (!isCurrent(this)) return
+          this.setData({ tangBootPending: false })
+        }
+        if (options.onShow) options.onShow.call(this)
+        this.__tangHasShown = true
+        deliverReady(this)
+      }).catch(() => {
+        if (isCurrent(this) && generation === this.__tangShowGeneration) {
+          wx.showToast({ title: '故事暂时未能打开，请返回重试', icon: 'none' })
+        }
+      })
+    },
+    onReady() {
+      this.__tangReadyRequested = true
+      deliverReady(this)
+    },
+    onHide() {
+      this.__tangVisible = false
+      ++this.__tangShowGeneration
+      try {
+        cleanUp(this, 'onHide')
+      } finally {
+        // A hidden page from an obsolete account must not retain contexts with
+        // callbacks that directly reference storage instead of guarded methods.
+        try {
+          if (this.__tangScope !== bridge.getScope()) cleanUp(this, 'onUnload')
+        } finally {
+          bridge.flush()
+        }
+      }
+    },
+    onUnload() {
+      this.__tangDead = true
+      this.__tangVisible = false
+      ++this.__tangShowGeneration
+      try {
+        cleanUp(this, 'onUnload')
+      } finally {
+        bridge.flush()
+      }
+    },
+  })
+}