feat: improve useApi

examples/next/Metainfo.vue

@@ -10,17 +10,12 @@ export default {
     }
   },
   setup() {
-    const mapping = inject('__vueMetaConfig')
-
-    return {
-      mapping
-    }
   },
   render() {
     const targets = {}
 
     for (const key in this.metainfo) {
-      const config = this.mapping[key] || {}
+      const config = this.$metaInfo.config[key] || {}
 
       const vnodes = renderMeta(this, key, this.metainfo[key], config)
       let target = (key !== 'base' && this.metainfo[key].target) || config.target || 'head'

examples/next/index.js

@@ -1,9 +1,12 @@
-import { markRaw, reactive, onMounted, customRef, getCurrentInstance } from 'vue'
+import { markRaw, reactive, onUnmounted, getCurrentInstance } from 'vue'
-import { def, hasOwn, isObject, isArray, isPlainObject } from '@vue/shared'
+import { hasOwn, isObject, isArray, isPlainObject } from '@vue/shared'
 import { defaultMapping } from './config'
 
 let appId = 0
 
+const shadow = markRaw({})
+const metainfo = reactive({})
+
 export function createMeta ({ resolver, config }) {
   const id = Symbol(`vueMeta[${appId++}]`)
 
@@ -12,116 +15,142 @@ export function createMeta ({ resolver, config }) {
       const $metaInfo = {
         id,
         resolver,
-        shadow: markRaw({}),
+        config: {
-        metainfo: reactive({})
+          ...defaultMapping,
+          ...config
+        }
       }
 
       app.config.globalProperties.$metaInfo = $metaInfo
-      app.provide('metainfo', $metaInfo.metainfo)
+      app.provide('metainfo', metainfo)
-      app.provide('__vueMetaConfig', {
-        id,
-        ...defaultMapping,
-        ...config
-      })
-
-      app.config.globalProperties.$meta = this
     }
   }
 }
 
-export function useMeta (obj) {
+export function useMeta (obj, context) {
-  const vm = getCurrentInstance()
+  // set empty object to remove everything
+  const unmount = () => setMetainfoByObject(context, {}, shadow, metainfo)
 
-  const { shadow, metainfo } = vm.ctx.$metaInfo
+  if (!context) {
-  addMetainfoRecursive(obj, vm, shadow, metainfo)
+    context = getCurrentInstance()
 
-  return createProxy(obj, createHandler(vm))
+    onUnmounted(unmount)
+  }
+
+  if (!context) {
+    context = {}
+  }
+
+  setMetainfoByObject(context, obj, shadow, metainfo)
+
+  const meta = createProxy(obj, createHandler(context))
+
+  return {
+    meta,
+    unmount
+  }
 }
 
 function createProxy (obj, handler) {
-  return new Proxy(obj, handler)
+  return markRaw(new Proxy(obj, handler))
 }
 
-function createHandler (vm, keyPath = []) {
+function createHandler (context, keyPath = []) {
   return {
     get (target, prop) {
       const value = target[prop]
 
-      if (isObject(value)) {
+      if (!isObject(value)) {
-        if (!value.__vm_proxy) {
+        return value
-          const newKeyPath = [...keyPath, prop]
-
-          const handler = createHandler(vm, newKeyPath)
-          value.__vm_proxy = createProxy(value, handler)
-        }
-
-        return value.__vm_proxy
       }
 
-      return value
+      if (!value.__vm_proxy) {
+        const newKeyPath = [...keyPath, prop]
+
+        const handler = createHandler(context, newKeyPath)
+        value.__vm_proxy = createProxy(value, handler)
+      }
+
+      return value.__vm_proxy
     },
     set (target, prop, value) {
-      updateMetainfo(keyPath, vm, prop, value)
+      updateMetainfo(keyPath, context, prop, value)
       return true
     }
   }
 }
 
-function addMetainfoRecursive (obj, vm, shadowParent, liveParent) {
+function setMetainfo (context, key, value, shadowParent, liveParent, keyTree = []) {
-  for (const key in obj) {
+  if (isPlainObject(value)) {
-    if (isPlainObject(obj[key])) {
+    if (!shadowParent[key]) {
-      if (!shadowParent[key]) {
+      shadowParent[key] = {}
-        shadowParent[key] = {}
+      liveParent[key] = {}
-        liveParent[key] = {}
+    }
-      }
 
-      addMetainfoRecursive(obj[key], vm, shadowParent[key], liveParent[key])
+    return setMetainfoByObject(context, value, shadowParent[key], liveParent[key], keyTree)
+  }
+
+  let idx = -1
+  if (!hasOwn(shadowParent, key)) {
+    shadowParent[key] = []
+  } else {
+    idx = shadowParent[key].findIndex(({ context: $context }) => $context === context)
+  }
+
+  if (idx > -1 && value === undefined) {
+    shadowParent[key].splice(idx, 1)
+  } else if (idx > -1) {
+    shadowParent[key][idx].value = value
+  } else if (value) {
+    shadowParent[key].push({ context, value })
+  }
+
+  resolveActiveMetainfo(context, key, keyTree, shadowParent, liveParent)
+}
+
+function setMetainfoByObject (context, obj, shadowParent, liveParent, keyTree = []) {
+  for (const key in shadowParent) {
+    if (hasOwn(obj, key)) {
       continue
     }
 
-    if (!shadowParent[key]) {
+    if (isPlainObject(shadowParent[key])) {
-      shadowParent[key] = []
+      setMetainfoByObject(context, {}, shadowParent[key], liveParent[key], [...keyTree, key])
+      continue
     }
 
-    shadowParent[key].push({ vm, value: obj[key] })
+    setMetainfo(context, key, undefined, shadowParent, liveParent, [...keyTree, key])
+  }
 
-    setLive(vm, key, shadowParent, liveParent)
+  for (const key in obj) {
+    setMetainfo(context, key, obj[key], shadowParent, liveParent, [...keyTree, key])
   }
 }
 
-function updateMetainfo (keyPath, vm, key, value) {
+function updateMetainfo (keyPath, context, key, value) {
-  let { shadow: shadowParent, metainfo: liveParent } = vm.ctx.$metaInfo
+  let shadowParent = shadow
+  let liveParent = metainfo
 
   for (const _key of keyPath) {
     shadowParent = shadowParent[_key]
     liveParent = liveParent[_key]
   }
 
-  if (isPlainObject(value)) {
+  setMetainfo(context, key, value, shadowParent, liveParent)
-    if (!shadowParent[key]) {
-      shadowParent[key] = {}
-      liveParent[key] = {}
-    }
-    // TODO: fix this shit
-    addMetainfoRecursive(value, vm, shadowParent[key], liveParent[key])
-    return
-  }
-
-  const idx = shadowParent[key].findIndex(({ vm: _vm }) => _vm === vm)
-  shadowParent[key][idx].value = value
-
-  setLive(vm, key, shadowParent, liveParent)
 }
 
-function setLive (vm, key, shadowParent, liveParent) {
+function resolveActiveMetainfo (context, key, keyTree, shadowParent, liveParent) {
   let value
+
   if (shadowParent[key].length > 1) {
-    value = vm.ctx.$metaInfo.resolver(shadowParent[key])
+    value = context.ctx.$metaInfo.resolver(key, shadowParent[key], liveParent[key])
-  } else {
+  } else if (shadowParent[key].length) {
     value = shadowParent[key][0].value
   }
 
-  if (!hasOwn(liveParent, key) || liveParent[key] !== value) {
+  if (value === undefined) {
+    delete liveParent[key]
+  } else if (!hasOwn(liveParent, key) || liveParent[key] !== value) {
     liveParent[key] = value
   }
 }

examples/vue-router/app.js

@@ -1,8 +1,8 @@
-import { createApp, defineComponent, reactive, inject, markRaw, toRefs, h, customRef, watch, watchEffect } from 'vue'
+import { createApp, defineComponent, reactive, inject, toRefs, h, watch } from 'vue'
 import { createRouter, createWebHistory } from 'vue-router'
 import Metainfo from '../next/Metainfo.vue'
 import { createMeta, useMeta } from '../next'
-import About from './about.vue'
+// import About from './about.vue'
 
 const metaUpdated = 'no'
 
@@ -16,25 +16,24 @@ const ChildComponent = defineComponent({
   <h3>You're looking at the <strong>{{ page }}</strong> page</h3>
   <p>Has metaInfo been updated due to navigation? {{ metaUpdated }}</p>
 </div>`,
-  created () {
+  setup (props) {
-    // console.log(this)
-  },
-  setup () {
     const state = reactive({
       date: null,
       metaUpdated
     })
 
-    const metainfo = useMeta({
+    const title = props.page[0].toUpperCase() + props.page.slice(1)
+
+    useMeta({
       charset: 'utf16',
-      description: 'Description 2',
+      title,
+      description: 'Description ' + props.page,
       og: {
-        title: 'Og Title 2'
+        title: 'Og Title ' + props.page
       }
     })
 
     return {
-      metainfo,
       ...toRefs(state)
     }
   }
@@ -51,7 +50,7 @@ function view (page) {
 
 const App = {
   setup () {
-    /* const metainfo = useMeta({
+    const { meta } = useMeta({
       base: { href: '/vue-router', target: '_blank' },
       charset: 'utf8',
       title: 'My Title',
@@ -83,7 +82,7 @@ const App = {
       script: [
         '<!--[if IE]>',
         { src: 'head-script1.js' },
-        '<![endif]>',
+        '<![endif]-->',
         { src: 'body-script2.js', target: 'body' },
         { src: 'body-script3.js', target: '#put-it-here' }
       ],
@@ -102,21 +101,12 @@ const App = {
       }
     })
 
-    setTimeout(() => (metainfo.title = 'My Updated Title'), 2000) */
+    setTimeout(() => (meta.title = 'My Updated Title'), 2000)
-
-    const meta = useMeta({
-      charset: 'utf8',
-      title: 'Title 1',
-      og: {
-        title: 'Og Title 1'
-      }
-    })
-
-    setTimeout(() => (meta.charset = 'utf17'), 2000)
-    setTimeout(() => (meta.og = { title: 'Updated Og Title 1' }), 3000) // TODO: fix
 
     const metainfo = inject('metainfo')
 
+    window.$metainfo = metainfo
+
     watch(metainfo, (newValue, oldValue) => {
       console.log('UPDATE', newValue)
     })
@@ -137,7 +127,7 @@ const App = {
     <div id="app">
       <h1>vue-router</h1>
       <router-link to="/">Home</router-link>
-      <!-- router-link to="/about">About</router-link -->
+      <router-link to="/about">About</router-link>
       <transition name="page" mode="out-in">
         <router-view></router-view>
       </transition>
@@ -146,15 +136,16 @@ const App = {
   `
 }
 
-function decisionMaker5000000 (options) {
+function decisionMaker5000000 (key, options, currentValue) {
   let theChosenOne
 
   for (const option of options) {
-    if (!theChosenOne || theChosenOne.vm.id < option.vm.id) {
+    if (!theChosenOne || theChosenOne.context.uid < option.context.uid) {
       theChosenOne = option
     }
   }
 
+  console.log(key, currentValue, options.map(({ value }) => value))
   console.log(theChosenOne.value)
   return theChosenOne.value
 }
@@ -178,10 +169,16 @@ const router = createRouter({
   history: createWebHistory('/vue-router'),
   routes: [
     { name: 'home', path: '/', component: view('home') },
-    { name: 'about', path: '/about', component: About }
+    { name: 'about', path: '/about', component: view('about') }
   ]
 })
 
+useMeta({
+  og: {
+    something: 'test'
+  }
+})
+
 const app = createApp(App)
 app.component('metainfo', Metainfo)
 app.use(router)