fix(runtime): 修复、迭代生命周期

packages/taro-api/src/index.js

@@ -24,6 +24,8 @@ import {
   useTitleClick,
   useOptionMenuClick,
   usePullIntercept,
+  useShareTimeline,
+  useAddToFavorites,
   useReady,
   useRouter,
   options,
@@ -57,6 +59,8 @@ const Taro = {
   useTitleClick,
   useOptionMenuClick,
   usePullIntercept,
+  useShareTimeline,
+  useAddToFavorites,
   useReady,
   useRouter,
   options,

packages/taro-cli/package.json

@@ -90,7 +90,7 @@
     "inquirer": "^5.2.0",
     "klaw": "^2.1.1",
     "latest-version": "^5.1.0",
-    "lodash": "^4.17.5",
+    "lodash": "4.17.19",
     "mem-fs": "^1.1.3",
     "mem-fs-editor": "^4.0.0",
     "minimatch": "^3.0.4",

packages/taro-loader/src/page.ts

@@ -3,8 +3,14 @@ import { getOptions, stringifyRequest } from 'loader-utils'
 import * as path from 'path'
 import { frameworkMeta } from './utils'
 
+interface PageConfig {
+  content: any
+  path: string
+}
+
 export default function (this: webpack.loader.LoaderContext) {
   const options = getOptions(this)
+  const config = getPageConfig(options.config, this.resourcePath)
   const stringify = (s: string): string => stringifyRequest(this, s)
   const { isNeedRawLoader } = frameworkMeta[options.framework]
   // raw is a placeholder loader to locate changed .vue resource
@@ -18,7 +24,24 @@ if (typeof PRERENDER !== 'undefined') {
 }`
   return `import { createPageConfig } from '@tarojs/runtime'
 import component from ${stringify(componentPath)}
+${config.enableShareTimeline ? 'component.enableShareTimeline = true' : ''}
+${config.enableShareAppMessage ? 'component.enableShareAppMessage = true' : ''}
 var inst = Page(createPageConfig(component, '${options.name}'))
 ${options.prerender ? prerender : ''}
 `
 }
+
+function getPageConfig (configs: Record<string, PageConfig>, resourcePath: string) {
+  const configPath = removeExt(resourcePath) + '.config'
+  for (const name in configs) {
+    const config = configs[name]
+    if (removeExt(configs[name].path) === configPath) {
+      return config.content
+    }
+  }
+  return {}
+}
+
+function removeExt (file: string) {
+  return path.join(path.dirname(file), path.basename(file, path.extname(file)))
+}

packages/taro-mini-runner/src/plugins/MiniPlugin.ts

@@ -232,7 +232,8 @@ export default class TaroMiniPlugin {
               options: {
                 framework,
                 name: module.name,
-                prerender: this.prerenderPages.has(module.name)
+                prerender: this.prerenderPages.has(module.name),
+                config: this.filesConfig
               }
             })
           }
@@ -653,6 +654,10 @@ export default class TaroMiniPlugin {
 
   generateConfigFile (compilation: webpack.compilation.Compilation, filePath: string, config: Config & { component?: boolean }) {
     const fileConfigName = this.getConfigPath(this.getComponentName(filePath))
+    const unOfficalConfigs = ['enableShareAppMessage', 'enableShareTimeline']
+    unOfficalConfigs.forEach(item => {
+      delete config[item]
+    })
     const fileConfigStr = JSON.stringify(config)
     compilation.assets[fileConfigName] = {
       size: () => fileConfigStr.length,

packages/taro-runtime/src/dsl/common.ts

@@ -17,6 +17,7 @@ import { CurrentReconciler } from '../reconciler'
 const instances = new Map<string, Instance>()
 
 export function injectPageInstance (inst: Instance<PageProps>, id: string) {
+  CurrentReconciler.mergePageInstance?.(instances.get(id), inst)
   instances.set(id, inst)
 }
 
@@ -86,7 +87,7 @@ export function getOnHideEventKey (path: string) {
   return path + '.' + 'onHide'
 }
 
-export function createPageConfig (component: React.ComponentClass, pageName?: string, data?: Record<string, unknown>) {
+export function createPageConfig (component: any, pageName?: string, data?: Record<string, unknown>) {
   const id = pageName ?? `taro_page_${pageId()}`
   // 小程序 Page 构造器是一个傲娇小公主，不能把复杂的对象挂载到参数上
   let pageElement: TaroRootElement | null = null
@@ -175,18 +176,6 @@ export function createPageConfig (component: React.ComponentClass, pageName?: st
       const path = getPath(id, this.options)
       return safeExecute(path, 'onPageScroll', options)
     },
-    onShareAppMessage (options) {
-      const target = options.target
-      if (target != null) {
-        const id = target.id
-        const element = document.getElementById(id)
-        if (element != null) {
-          options.target!.dataset = element.dataset
-        }
-      }
-      const path = getPath(id, this.options)
-      return safeExecute(path, 'onShareAppMessage', options)
-    },
     onResize (options) {
       const path = getPath(id, this.options)
       return safeExecute(path, 'onResize', options)
@@ -210,6 +199,32 @@ export function createPageConfig (component: React.ComponentClass, pageName?: st
     onPullIntercept () {
       const path = getPath(id, this.options)
       return safeExecute(path, 'onPullIntercept')
+    },
+    onAddToFavorites () {
+      const path = getPath(id, this.options)
+      return safeExecute(path, 'onAddToFavorites')
+    }
+  }
+
+  // onShareAppMessage 和 onShareTimeline 一样，会影响小程序右上方按钮的选项，因此不能默认注册。
+  if (component.onShareAppMessage || component.enableShareAppMessage) {
+    config.onShareAppMessage = function (options) {
+      const target = options.target
+      if (target != null) {
+        const id = target.id
+        const element = document.getElementById(id)
+        if (element != null) {
+          options.target!.dataset = element.dataset
+        }
+      }
+      const path = getPath(id, this.options)
+      return safeExecute(path, 'onShareAppMessage', options)
+    }
+  }
+  if (component.onShareTimeline || component.enableShareTimeline) {
+    config.onShareTimeline = function () {
+      const path = getPath(id, this.options)
+      return safeExecute(path, 'onShareTimeline')
     }
   }
 

packages/taro-runtime/src/dsl/hooks.ts

@@ -1,3 +1,4 @@
+import { isFunction, isArray } from '@tarojs/shared'
 import { PageContext, R as React } from './react'
 import { getPageInstance, injectPageInstance } from './common'
 import { PageLifeCycle } from './instance'
@@ -19,19 +20,34 @@ const taroHooks = (lifecycle: keyof PageLifeCycle) => {
         inst = Object.create(null)
       }
 
+      inst = inst!
+
       // callback is immutable but inner function is up to date
       const callback = (...args: any) => fnRef.current(...args)
-      if (lifecycle !== 'onShareAppMessage') {
-        (inst![lifecycle] as any) = [
-          ...((inst![lifecycle] as any) || []),
-          callback
-        ]
+      if (lifecycle === 'onShareAppMessage') {
+        inst[lifecycle] = callback
       } else {
-        inst![lifecycle] = callback
+        if (isFunction(inst[lifecycle])) {
+          (inst[lifecycle] as any) = [inst[lifecycle], callback]
+        } else {
+          (inst[lifecycle] as any) = [
+            ...((inst[lifecycle] as any) || []),
+            callback
+          ]
+        }
       }
       if (first) {
         injectPageInstance(inst!, id)
       }
+      return () => {
+        const inst = getPageInstance(id)
+        const list = inst![lifecycle]
+        if (list === callback) {
+          (inst![lifecycle] as any) = undefined
+        } else if (isArray(list)) {
+          (inst![lifecycle] as any) = list.filter(item => item !== callback)
+        }
+      }
     }, [])
   }
 }
@@ -58,6 +74,10 @@ export const useOptionMenuClick = taroHooks('onOptionMenuClick')
 
 export const usePullIntercept = taroHooks('onPullIntercept')
 
+export const useShareTimeline = taroHooks('onShareTimeline')
+
+export const useAddToFavorites = taroHooks('onAddToFavorites')
+
 export const useReady = taroHooks('onReady')
 
 export const useRouter = (dynamic = false) => {

packages/taro-runtime/src/dsl/instance.ts

@@ -53,6 +53,8 @@ export interface PageLifeCycle extends Show {
   onPopMenuClick?(): void
   onReady?(): void
   onPullIntercept?(): void
+  onShareTimeline?(): void
+  onAddToFavorites?(): void
   eh?(event: MpEvent): void
   onLoad(options: Record<string, unknown>): void
   onUnload(): void

packages/taro-runtime/src/dsl/react.ts

@@ -93,6 +93,23 @@ function setReconciler () {
         lifecycle = 'componentDidHide'
       }
       return instance[lifecycle] as Function
+    },
+    mergePageInstance (prev, next) {
+      if (!prev || !next) return
+
+      // 子组件使用 lifecycle hooks 注册了生命周期后，会存在 prev，里面是注册的生命周期回调。
+      Object.keys(prev).forEach(item => {
+        if (item === 'onShareAppMessage') {
+          if (!isFunction(next[item])) next[item] = prev[item]
+          return
+        }
+
+        if (isFunction(next[item])) {
+          next[item] = [next[item], ...prev[item]]
+        } else {
+          next[item] = [...(next[item] || []), ...prev[item]]
+        }
+      })
     }
   }
 

packages/taro-runtime/src/reconciler.ts

@@ -2,7 +2,9 @@ import type { TaroElement } from './dom/element'
 import type { TaroText } from './dom/text'
 import type { DataTree, TaroNode } from './dom/node'
 import type { TaroRootElement } from './dom/root'
-import type { PageInstance } from './dsl/instance'
+import type { Instance, PageInstance, PageProps } from './dsl/instance'
+
+type Inst = Instance<PageProps>
 
 export interface Reconciler<Instance, DOMElement = TaroElement, TextElement = TaroText, DOMNode = TaroNode> {
   // mini apps
@@ -26,6 +28,8 @@ export interface Reconciler<Instance, DOMElement = TaroElement, TextElement = Ta
   createPullDownComponent?(el: Instance, path: string, framework)
 
   findDOMNode?(instance: Instance): DOMElement | undefined
+
+  mergePageInstance?(prev: Inst | undefined, next: Inst): void
 }
 
 export const CurrentReconciler: Reconciler<any> = {

packages/taro/types/taro.hooks.d.ts

@@ -42,6 +42,16 @@ declare namespace Taro {
    */
   function useTabItemTap(callback: (payload: TabItemTapObject) => any): void
 
+  /**
+   * 用户点击右上角菜单“收藏”按钮时的回调。
+   */
+  function useAddToFavorites(callback: (paload: AddToFavoritesObject) => AddToFavoritesReturnObject): void
+
+  /**
+   * 用户点击右上角菜单“分享到朋友圈”按钮时的回调。
+   */
+  function useShareTimeline(callback: () => any): void
+
   /**
    * 页面初次渲染完成的回调。
    * 此时页面已经准备妥当，可以和视图层进行交互。

packages/taro/types/taro.lifecycle.d.ts

@@ -28,19 +28,19 @@ declare namespace Taro {
      * 转发事件来源
      * `button`：页面内转发按钮
      * `menu`：右上角转发菜单
-     * 
+     *
      * @since 1.2.4
      */
     from?: 'button' | 'menu' | string
     /**
      * 如果 `from` 值是 `button`，则 `target` 是触发这次转发事件的 `button`，否则为 `undefined`
-     * 
+     *
      * @since 1.2.4
      */
     target?: object
     /**
      * 页面中包含 `<web-view>` 组件时，返回当前 `<web-view>` 的 url
-     * 
+     *
      * @since 1.6.4
      */
     webViewUrl?: string
@@ -62,7 +62,7 @@ declare namespace Taro {
      * 支持PNG及JPG
      * 显示图片长宽比是 5:4
      * 默认使用截图
-     * 
+     *
      * @since 1.5.0
      */
     imageUrl?: string
@@ -71,26 +71,44 @@ declare namespace Taro {
   interface TabItemTapObject {
     /**
      * 被点击tabItem的序号，从 0 开始
-     * 
-     * @since 1.9.0
      */
     index: string
 
     /**
      * 被点击tabItem的页面路径
-     * 
-     * @since 1.9.0
      */
     pagePath: string
 
     /**
      * 被点击tabItem的按钮文字
-     * 
-     * @since 1.9.0
      */
     text: string
   }
 
+  interface AddToFavoritesObject {
+    /**
+     * 页面中包含web-view组件时，返回当前web-view的url
+     */
+    webviewUrl: string
+  }
+
+  interface AddToFavoritesReturnObject {
+    /**
+     * 自定义标题
+     */
+    title?: string
+
+    /**
+     * 自定义图片，显示图片长宽比为 1：1
+     */
+    imageUrl?: string
+
+    /**
+     * 自定义query字段
+     */
+    query?: string
+  }
+
   type GetDerivedStateFromProps<P, S> =
   /**
    * Returns an update to a component's state based on its new props and old state.