diff --git a/.eslintrc.js b/.eslintrc.js
index 2b04712f..b2897179 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -23,6 +23,7 @@ module.exports = {
     'no-console': 'off',
     'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
     'comma-dangle': 'off',
+    'no-unused-expressions': 'off'
   },
   overrides: [
     {
diff --git a/package.json b/package.json
index 39e9049f..f99f673a 100644
--- a/package.json
+++ b/package.json
@@ -91,6 +91,7 @@
     "ts-node": "^10.0.0",
     "turndown": "^7.0.0",
     "typescript": "^4.3.2",
+    "utility-types": "^3.10.0",
     "vite": "^2.3.7",
     "vue": "^3.1.1",
     "vue-router": "^4.0.0-0",
diff --git a/src/main/app.ts b/src/main/app.ts
index 89afdb1a..1a607b78 100644
--- a/src/main/app.ts
+++ b/src/main/app.ts
@@ -176,7 +176,7 @@ const showSetting = () => {
   }
 
   showWindow()
-  win.webContents.executeJavaScript('globalBus.emit("show-setting");', true)
+  win.webContents.executeJavaScript('window.ctx.action.getAction("status-bar.show-setting")();', true)
 }
 
 const serve = () => {
diff --git a/src/renderer/components/ContextMenu.vue b/src/renderer/components/ContextMenu.vue
index bf7f2c21..f620779b 100644
--- a/src/renderer/components/ContextMenu.vue
+++ b/src/renderer/components/ContextMenu.vue
@@ -12,7 +12,7 @@
 
 <script lang="ts">
 import { defineComponent, nextTick, onBeforeUnmount, onMounted, ref } from 'vue'
-import { Components } from '../types'
+import { Components } from '@fe/support/types'
 
 export default defineComponent({
   name: 'context-menu',
diff --git a/src/renderer/components/Editor.vue b/src/renderer/components/Editor.vue
index 686ca3df..05d891d7 100644
--- a/src/renderer/components/Editor.vue
+++ b/src/renderer/components/Editor.vue
@@ -9,7 +9,6 @@
       @paste-img="pasteImg"
       @upload-file="uploadFile"
       @change-document="val => store.commit('setDocumentInfo', val)"
-      @xterm-run="val => bus.emit('xterm-run', val)"
       @save="saveFile"></MonacoEditor>
   </div>
 </template>
@@ -19,12 +18,13 @@ import { debounce } from 'lodash-es'
 import dayjs from 'dayjs'
 import { defineComponent, nextTick, onBeforeMount, onMounted, ref, toRefs, watch } from 'vue'
 import { useStore } from 'vuex'
-import { encodeMarkdownLink } from '../useful/utils'
-import { useBus } from '../useful/bus'
-import { useModal } from '../useful/modal'
-import { useToast } from '../useful/toast'
-import File from '../useful/file'
-import Storage from '../useful/storage'
+import { encodeMarkdownLink, fileToBase64URL } from '@fe/utils'
+import { useBus } from '@fe/support/bus'
+import * as api from '@fe/support/api'
+import Storage from '@fe/utils/storage'
+import { registerAction, removeAction } from '@fe/context/action'
+import { isEncrypted, saveDoc, toUri } from '@fe/context/document'
+import { Doc } from '@fe/support/types'
 import MonacoEditor from './MonacoEditor.vue'
 
 const FILE_POSITION_KEY = 'filePosition'
@@ -33,28 +33,17 @@ export default defineComponent({
   name: 'editor',
   components: { MonacoEditor },
   setup (_, { emit }) {
+    let editorIsReady = false
     const bus = useBus()
     const store = useStore()
-    const modal = useModal()
-    const toast = useToast()
 
     let timer: number | null = null
     const refEditor = ref<any>(null)
-    const { currentFile, currentContent, previousContent, previousHash, passwordHash } = toRefs(store.state)
+    const { currentFile, currentContent } = toRefs(store.state)
 
     const getEditor = () => refEditor.value
     const revealLine = (line: number) => getEditor().revealLine(line)
     const revealLineInCenter = (line: number) => getEditor().revealLineInCenter(line)
-    const toUri = (file: any) => File.toUri(file)
-
-    async function inputPassword (title: string, filename: string) {
-      const password = await modal.input({ title, type: 'password', hint: filename })
-      if (!password) {
-        throw new Error('未输入密码')
-      }
-
-      return password
-    }
 
     function saveFileOpenPosition (top: number) {
       if (currentFile.value) {
@@ -79,27 +68,6 @@ export default defineComponent({
       saveFileOpenPositionDebounce(top)
     }
 
-    async function createFile ({ file, content }: {file: any; content: any}) {
-      try {
-        // 加密文件内容
-        if (File.isEncryptedFile(file)) {
-          const password = await inputPassword('[创建] 请输入密码', file.name)
-          const encrypted = File.encrypt(content, password)
-          content = encrypted.content
-          // 储存这次解密文件密码的 hash，用于下次判断是否输入了相同密码
-          store.commit('setPasswordHash', { file, passwordHash: encrypted.passwordHash })
-        }
-
-        await File.write(file, content, 'new')
-
-        bus.emit('file-created', file)
-        store.commit('setCurrentFile', file)
-      } catch (error) {
-        toast.show('warning', error.message)
-        console.error(error)
-      }
-    }
-
     function clearTimer () {
       if (timer) {
         window.clearTimeout(timer)
@@ -107,14 +75,14 @@ export default defineComponent({
       }
     }
 
-    async function saveFile (f: any = null) {
+    async function saveFile (f: Doc | null = null) {
       const file = f || currentFile.value
 
-      if (!(file && file.repo && file.path)) {
+      if (!(file && file.repo && file.path && file.status)) {
         return
       }
 
-      if (previousContent.value === currentContent.value) {
+      if (file.content === currentContent.value) {
         return
       }
 
@@ -126,34 +94,7 @@ export default defineComponent({
         return
       }
 
-      try {
-        let content = currentContent.value
-
-        // 加密文件内容
-        if (File.isEncryptedFile(file)) {
-          const password = await inputPassword('[保存] 请输入密码', file.name)
-          const encrypted = File.encrypt(content, password)
-          const oldPasswdHash = passwordHash.value[`${file.repo}|${file.path}`]
-          if (oldPasswdHash !== encrypted.passwordHash) {
-            if (!(await modal.confirm({ title: '提示', content: '密码和上一次输入的密码不一致，是否用新密码保存？' }))) {
-              return
-            }
-          }
-
-          content = encrypted.content
-          // 储存这次解密文件密码的 hash，用于下次判断是否输入了相同密码
-          store.commit('setPasswordHash', { file, passwordHash: encrypted.passwordHash })
-        }
-
-        const { hash } = await File.write(file, content, previousHash.value)
-
-        store.commit('setPreviousHash', hash)
-        store.commit('setPreviousContent', currentContent.value)
-        store.commit('setSavedAt', new Date())
-      } catch (error) {
-        toast.show('warning', error.message)
-        console.error(error)
-      }
+      await saveDoc(file, currentContent.value)
     }
 
     function restartTimer () {
@@ -164,7 +105,7 @@ export default defineComponent({
       }
 
       timer = window.setTimeout(() => {
-        if (!currentFile.value || File.isEncryptedFile(currentFile.value)) { // 加密文件不自动保存
+        if (!currentFile.value || isEncrypted(currentFile.value)) { // 加密文件不自动保存
           return
         }
 
@@ -174,10 +115,10 @@ export default defineComponent({
 
     async function pasteImg (file: any, asBase64: boolean) {
       if (asBase64) {
-        const uri = await File.toBase64URL(file)
+        const uri = await fileToBase64URL(file)
         getEditor().insert(`![图片](${uri})\n`)
       } else {
-        const { relativePath } = await File.upload(currentFile.value.repo, currentFile.value.path, file)
+        const { relativePath } = await api.upload(currentFile.value.repo, currentFile.value.path, file)
         bus.emit('file-uploaded', relativePath)
         getEditor().insert(`![图片](${encodeMarkdownLink(relativePath)})\n`)
       }
@@ -185,63 +126,32 @@ export default defineComponent({
 
     async function uploadFile (file: any) {
       const filename = `${dayjs().format('YYYYMMDDHHmmss')}.${file.name}`
-      const { relativePath } = await File.upload(currentFile.value.repo, currentFile.value.path, file, filename)
+      const { relativePath } = await api.upload(currentFile.value.repo, currentFile.value.path, file, filename)
       bus.emit('file-uploaded', relativePath)
       getEditor().insert(`附件 [${dayjs().format('YYYY-MM-DD HH:mm')}] [${file.name} (${(file.size / 1024).toFixed(2)}KiB)](${encodeMarkdownLink(relativePath)}){class=open target=_blank}\n`)
     }
 
-    async function changeFile (current: any, previous?: any) {
+    async function changeFile (current?: Doc | null) {
       clearTimer()
 
-      if (previous && previous.repo && previous.path) {
-        await saveFile(previous)
-      }
-
-      if (!current) {
-        store.commit('setPreviousContent', '\n')
-        getEditor().setModel(toUri(current), '\n')
-        store.commit('setCurrentFile', null)
+      if (!editorIsReady) {
         return
       }
 
-      if (current.content) { // 系统文件
-        store.commit('setPreviousContent', current.content)
-        store.commit('setSavedAt', null)
-        getEditor().setModel(toUri(current), current.content)
-        return
+      getEditor().setModel(toUri(current), current?.content ?? '\n')
+
+      if (current && current.status) {
+        // 切换文件时候保留定位
+        nextTick(() => {
+          const top = Storage.get(FILE_POSITION_KEY, {})[`${current.repo}|${current.path}`] || 1
+          getEditor().setScrollToTop(top)
+        })
       }
-
-      try {
-        let { content, hash } = await File.read(current)
-
-        // 解密文件内容
-        if (File.isEncryptedFile(current)) {
-          const password = await inputPassword('[打开] 请输入密码', current.name)
-          const decrypted = File.decrypt(content, password)
-          content = decrypted.content
-          // 储存这次解密文件密码的 hash，用于下次判断是否输入了相同密码
-          store.commit('setPasswordHash', { file: current, passwordHash: decrypted.passwordHash })
-        }
-
-        store.commit('setPreviousContent', content)
-        store.commit('setPreviousHash', hash)
-        store.commit('setSavedAt', null)
-        getEditor().setModel(toUri(current), content)
-      } catch (error) {
-        store.commit('setCurrentFile', null)
-        toast.show('warning', error.message.includes('Malformed') ? '密码错误' : error.message)
-        console.error(error)
-      }
-
-      // 切换文件时候保留定位
-      nextTick(() => {
-        const top = Storage.get(FILE_POSITION_KEY, {})[`${current.repo}|${current.path}`] || 1
-        getEditor().setScrollToTop(top)
-      })
     }
 
     function editorReady () {
-      bus.emit('editor-ready')
+      bus.emit('editor.ready')
+      editorIsReady = true
       if (currentFile.value) {
         changeFile(currentFile.value)
       }
@@ -253,46 +163,39 @@ export default defineComponent({
     const resize = () => nextTick(() => getEditor().resize())
     const insert = (text?: string) => getEditor().insert(text)
 
-    const replaceValue = (value?: { search: string; replace: string }) => {
-      if (value) {
-        getEditor().replaceValue(value.search, value.replace)
-      }
+    const replaceValue = (search: string, replace: string) => {
+      getEditor().replaceValue(search, replace)
     }
 
-    const replaceLine = (params?: { line: number; value: string }) => {
-      if (params) {
-        getEditor().replaceLine(params.line, params.value)
-      }
+    const replaceLine = (line: number, value: string) => {
+      getEditor().replaceLine(line, value)
     }
 
-    const getLine = (params?: {line: number; callback?: (value: string) => void}) => {
-      if (params) {
-        const { line, callback } = params
-        callback && callback(getEditor().getLineContent(line))
-      }
+    const getLine = (line: number) => {
+      return getEditor().getLineContent(line)
     }
 
     const toggleWrap = () => getEditor().toggleWrap()
 
     onMounted(() => {
       bus.on('resize', resize)
-      bus.on('editor-insert-value', insert)
-      bus.on('editor-replace-value', replaceValue)
-      bus.on('editor-get-line', getLine)
-      bus.on('editor-replace-line', replaceLine)
-      bus.on('editor-toggle-wrap', toggleWrap)
-      bus.on('file-new', createFile as any)
+      registerAction('editor.get-editor', getEditor)
+      registerAction('editor.insert-value', insert)
+      registerAction('editor.replace-value', replaceValue)
+      registerAction('editor.get-line', getLine)
+      registerAction('editor.replace-line', replaceLine)
+      registerAction('editor.toggle-wrap', toggleWrap)
       restartTimer()
     })
 
     onBeforeMount(() => {
       bus.off('resize', resize)
-      bus.off('editor-insert-value', insert)
-      bus.off('editor-replace-value', replaceValue)
-      bus.off('editor-get-line', getLine)
-      bus.off('editor-replace-line', replaceLine)
-      bus.off('editor-toggle-wrap', toggleWrap)
-      bus.off('file-new', createFile as any)
+      removeAction('editor.get-editor')
+      removeAction('editor.insert-value')
+      removeAction('editor.replace-value')
+      removeAction('editor.get-line')
+      removeAction('editor.replace-line')
+      removeAction('editor.toggle-wrap')
     })
 
     return {
diff --git a/src/renderer/components/FileTabs.vue b/src/renderer/components/FileTabs.vue
index e3001467..85b08f12 100644
--- a/src/renderer/components/FileTabs.vue
+++ b/src/renderer/components/FileTabs.vue
@@ -4,19 +4,22 @@
 
 <script lang="ts">
 import { useStore } from 'vuex'
-import Tabs from './Tabs.vue'
-import File from '../useful/file'
 import { defineComponent, onBeforeMount, onBeforeUnmount, ref, toRefs, watch } from 'vue'
-import { Components } from '../types'
-import { isAction } from '../useful/shortcut'
+import { isAction } from '@fe/context/shortcut'
+import { Components, Doc } from '@fe/support/types'
+import { useBus } from '@fe/support/bus'
+import { ensureCurrentFileSaved, isEncrypted, switchDoc, toUri } from '@fe/context/document'
+import { isBelongTo } from '@fe/utils/path'
+import Tabs from './Tabs.vue'
 
-const blankUri = File.toUri(null)
+const blankUri = toUri(null)
 
 export default defineComponent({
   name: 'file-tabs',
   components: { Tabs },
   setup () {
     const store = useStore()
+    const bus = useBus()
 
     const { currentFile, tabs } = toRefs(store.state)
     const list = ref<Components.FileTabs.Item[]>([])
@@ -27,14 +30,18 @@ export default defineComponent({
     }
 
     function switchFile (file: any) {
-      store.commit('setCurrentFile', file)
+      switchDoc(file)
     }
 
     function switchTab (item: Components.FileTabs.Item) {
       switchFile(item.payload.file)
     }
 
-    function removeTabs (items: Components.FileTabs.Item[]) {
+    async function removeTabs (items: Components.FileTabs.Item[]) {
+      if (items.find(x => x.key === current.value)) {
+        await ensureCurrentFileSaved()
+      }
+
       const keys = items.map(x => x.key)
       setTabs(tabs.value.filter((x: any) => keys.indexOf(x.key) === -1))
     }
@@ -84,24 +91,50 @@ export default defineComponent({
       }
     }
 
+    function removeFile (doc?: Doc | null) {
+      const tab = tabs.value.find((x: Components.FileTabs.Item) => {
+        return x.key === toUri(doc) || (x.payload.file && doc && isBelongTo(doc.path, x.payload.file.path))
+      })
+
+      if (tab) {
+        removeTabs([tab])
+      }
+    }
+
+    function handleSwitchFailed (payload?: { doc?: Doc | null, message: string }) {
+      if (isEncrypted(payload?.doc) || payload?.message?.indexOf('NOENT')) {
+        removeFile(payload?.doc)
+      }
+    }
+
+    function handleMoved (payload?: { oldDoc: Doc }) {
+      if (payload) {
+        removeFile(payload.oldDoc)
+      }
+    }
+
     onBeforeMount(() => {
+      bus.on('doc.created', switchFile)
+      bus.on('doc.deleted', removeFile)
+      bus.on('doc.switch-failed', handleSwitchFailed)
+      bus.on('doc.moved', handleMoved)
       window.addEventListener('keydown', keydownHandler, true)
     })
 
     onBeforeUnmount(() => {
+      bus.off('doc.created', switchFile)
+      bus.off('doc.deleted', removeFile)
+      bus.off('doc.switch-failed', handleSwitchFailed)
+      bus.off('doc.moved', handleMoved)
       window.removeEventListener('keydown', keydownHandler)
     })
 
-    watch(currentFile, (file: any, prevFile: any) => {
-      if (!file && File.isEncryptedFile(prevFile)) {
-        setTabs(tabs.value.filter((x: any) => !File.isSameFile(x.payload.file, prevFile)))
-      }
-
-      const uri = File.toUri(file)
+    watch(currentFile, (file: any) => {
+      const uri = toUri(file)
       const item = {
         key: uri,
         label: file ? file.name : '空白页',
-        description: file ? file.path : '空白页',
+        description: file ? `[${file.repo}] ${file.path}` : '空白页',
         payload: { file },
       }
 
diff --git a/src/renderer/components/Filter.vue b/src/renderer/components/Filter.vue
index bf46cc5a..5d37f1b8 100644
--- a/src/renderer/components/Filter.vue
+++ b/src/renderer/components/Filter.vue
@@ -7,10 +7,11 @@
 <script lang="ts">
 import { useStore } from 'vuex'
 import { computed, defineComponent, onMounted, onUnmounted, ref, toRef } from 'vue'
-import { encodeMarkdownLink } from '@fe/useful/utils'
-import { getCurrentAction } from '@fe/useful/shortcut'
-import { useBus } from '@fe/useful/bus'
-import { basename, dirname, isBelongTo, join, relative } from '@fe/useful/path'
+import { encodeMarkdownLink } from '@fe/utils'
+import { getCurrentAction } from '@fe/context/shortcut'
+import { dirname, isBelongTo, join, relative } from '@fe/utils/path'
+import { insertValue } from '@fe/context/editor'
+import { switchDoc } from '@fe/context/document'
 import XMask from './Mask.vue'
 import QuickOpen from './QuickOpen.vue'
 
@@ -19,7 +20,6 @@ export default defineComponent({
   components: { QuickOpen, XMask },
   setup () {
     const store = useStore()
-    const bus = useBus()
 
     const currentFile = toRef(store.state, 'currentFile')
     const callback = ref<Function | null>(null)
@@ -36,7 +36,7 @@ export default defineComponent({
                 ? relative(cwd, f.path)
                 : join('/', f.path)
               const fileName = f.name.replace(/\.[^.]*$/, '')
-              bus.emit('editor-insert-value', `[${fileName}](${encodeMarkdownLink(filePath)})`)
+              insertValue(`[${fileName}](${encodeMarkdownLink(filePath)})`)
             }
             callback.value = null
           }
@@ -46,7 +46,7 @@ export default defineComponent({
           break
         case 'show-quick-open':
           callback.value = (f: any) => {
-            store.commit('setCurrentFile', f)
+            switchDoc(f)
             callback.value = null
           }
           withMarked.value = true
diff --git a/src/renderer/components/Layout.vue b/src/renderer/components/Layout.vue
index 8ab9f6ec..fda2ea1c 100644
--- a/src/renderer/components/Layout.vue
+++ b/src/renderer/components/Layout.vue
@@ -31,10 +31,11 @@
 </template>
 
 <script lang="ts">
-import { defineComponent, onBeforeUnmount, onMounted, nextTick, ref, toRefs } from 'vue'
+import { defineComponent, onBeforeUnmount, onMounted, ref, toRefs } from 'vue'
 import { useStore } from 'vuex'
-import { useBus } from '../useful/bus'
-import { $args, FLAG_DISABLE_XTERM } from '../useful/global-args'
+import { useBus } from '@fe/support/bus'
+import { $args, FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import { emitResize } from '@fe/context/layout'
 
 let resizeOrigin: any = null
 
@@ -51,34 +52,6 @@ export default defineComponent({
     const terminal = ref(null)
     const refs: any = { aside, editor, terminal }
 
-    function toggleSide () {
-      store.commit('setShowSide', !showSide.value)
-      nextTick(() => bus.emit('resize'))
-    }
-
-    function toggleView () {
-      store.commit('setShowView', !showView.value)
-      nextTick(() => bus.emit('resize'))
-    }
-
-    function toggleXterm (val?: boolean) {
-      const show = typeof val === 'boolean' ? val : !showXterm.value
-
-      store.commit('setShowXterm', show)
-
-      nextTick(() => {
-        nextTick(() => bus.emit('resize'))
-
-        if (showXterm.value) {
-          bus.emit('xterm-init')
-        }
-      })
-    }
-
-    function emitResize () {
-      bus.emit('resize')
-    }
-
     function resizeFrame (e: MouseEvent) {
       if (e.buttons !== 1) {
         resizeOrigin = null
@@ -122,19 +95,11 @@ export default defineComponent({
     }
 
     onMounted(() => {
-      bus.on('toggle-view', toggleView)
-      bus.on('toggle-side', toggleSide)
-      bus.on('toggle-xterm', toggleXterm)
-
       window.addEventListener('resize', emitResize)
       window.document.addEventListener('mousemove', resizeFrame)
     })
 
     onBeforeUnmount(() => {
-      bus.off('toggle-side', toggleSide)
-      bus.off('toggle-view', toggleView)
-      bus.off('toggle-xterm', toggleXterm)
-
       window.removeEventListener('resize', emitResize)
       window.document.removeEventListener('mousemove', resizeFrame)
     })
diff --git a/src/renderer/components/ModalUi.vue b/src/renderer/components/ModalUi.vue
index d49e1f85..386357c0 100644
--- a/src/renderer/components/ModalUi.vue
+++ b/src/renderer/components/ModalUi.vue
@@ -18,7 +18,7 @@
 <script lang="ts">
 import { defineComponent, nextTick, ref } from 'vue'
 import XMask from './Mask.vue'
-import { Components } from '../types'
+import { Components } from '@fe/support/types'
 
 type ModalType = '' | 'confirm' | 'input'
 
diff --git a/src/renderer/components/MonacoEditor.vue b/src/renderer/components/MonacoEditor.vue
index 05116873..d61b879d 100644
--- a/src/renderer/components/MonacoEditor.vue
+++ b/src/renderer/components/MonacoEditor.vue
@@ -7,8 +7,9 @@ import dayjs from 'dayjs'
 import TurndownService from 'turndown'
 import * as monaco from 'monaco-editor'
 import { defineComponent, onBeforeUnmount, onMounted, ref } from 'vue'
-import { $args } from '../useful/global-args'
-import env from '../useful/env'
+import { $args } from '@fe/support/global-args'
+import { getAction } from '@fe/context/action'
+import env from '@fe/utils/env'
 
 const models: {[key: string]: monaco.editor.ITextModel} = {}
 
@@ -91,7 +92,7 @@ export default defineComponent({
       })
 
       getEditor().addCommand(KM.Shift | KM.Alt | KC.KEY_R, () => {
-        emit('xterm-run', getEditor().getModel()!.getValueInRange(getEditor().getSelection()!))
+        getAction('xterm.run')(getEditor().getModel()!.getValueInRange(getEditor().getSelection()!))
       })
 
       getEditor().addCommand(KM.CtrlCmd | KC.Enter, () => {
diff --git a/src/renderer/components/Preview.vue b/src/renderer/components/Preview.vue
index d9fab464..7b8f9f93 100644
--- a/src/renderer/components/Preview.vue
+++ b/src/renderer/components/Preview.vue
@@ -43,12 +43,12 @@
 import { debounce } from 'lodash-es'
 import { useStore } from 'vuex'
 import { computed, defineComponent, nextTick, onBeforeUnmount, onMounted, ref, toRefs, watch } from 'vue'
-
-import { extname } from '@fe/useful/path'
-import { triggerHook } from '@fe/useful/plugin'
-import { useBus } from '@fe/useful/bus'
-import markdown from '@fe/useful/markdown'
-import { useToast } from '@fe/useful/toast'
+import { extname } from '@fe/utils/path'
+import { markdown } from '@fe/context/markdown'
+import { triggerHook } from '@fe/context/plugin'
+import { useBus } from '@fe/support/bus'
+import { useToast } from '@fe/support/toast'
+import { registerAction, removeAction } from '@fe/context/action'
 import Render from './Render.vue'
 
 import 'github-markdown-css/github-markdown.css'
@@ -218,16 +218,16 @@ export default defineComponent({
     onMounted(() => {
       nextTick(renderDebonce)
       triggerHook('ON_VIEW_MOUNTED', { getViewDom })
+      registerAction('view.refresh', render)
       window.addEventListener('keydown', keydownHandler, true)
       bus.on('resize', resizeHandler)
-      bus.on('view-rerender', render)
       resizeHandler()
     })
 
     onBeforeUnmount(() => {
+      removeAction('view.refresh')
       window.removeEventListener('keydown', keydownHandler)
       bus.off('resize', resizeHandler)
-      bus.off('view-rerender', render)
     })
 
     watch(currentContent, () => autoPreview.value && renderDebonce())
diff --git a/src/renderer/components/QuickOpen.vue b/src/renderer/components/QuickOpen.vue
index e851aac5..0d17a71d 100644
--- a/src/renderer/components/QuickOpen.vue
+++ b/src/renderer/components/QuickOpen.vue
@@ -29,8 +29,8 @@
 import { debounce } from 'lodash-es'
 import { computed, defineComponent, nextTick, onMounted, ref, toRefs, watch } from 'vue'
 import { useStore } from 'vuex'
-import file from '../useful/file'
-import fuzzyMatch from '../useful/fuzzy-match'
+import * as api from '@fe/support/api'
+import fuzzyMatch from '@fe/utils/fuzzy-match'
 
 type TabKey = 'marked' | 'search' | 'file'
 
@@ -143,7 +143,7 @@ export default defineComponent({
       if (repo.value && text.trim()) {
         const fetchTime = new Date().getTime()
         lastFetchTime.value = fetchTime
-        const data = await file.search(repo.value, text.trim())
+        const data = await api.search(repo.value, text.trim())
         // 总是保证最后的搜索结果出现在列表
         if (fetchTime >= lastFetchTime.value) {
           call(data)
diff --git a/src/renderer/components/Setting.vue b/src/renderer/components/Setting.vue
index 4a5d9587..3bb8d858 100644
--- a/src/renderer/components/Setting.vue
+++ b/src/renderer/components/Setting.vue
@@ -13,9 +13,9 @@
 import { useStore } from 'vuex'
 import { computed, defineComponent, onMounted, ref } from 'vue'
 import { JSONEditor } from '@json-editor/json-editor'
-import file from '@fe/useful/file'
-import { FLAG_DISABLE_XTERM } from '@fe/useful/global-args'
-import { useToast } from '@fe/useful/toast'
+import * as api from '@fe/support/api'
+import { FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import { useToast } from '@fe/support/toast'
 
 JSONEditor.defaults.language = 'zh'
 JSONEditor.defaults.languages.zh = { ...JSONEditor.defaults.languages.en }
@@ -91,7 +91,7 @@ export default defineComponent({
         schema,
       })
 
-      const data = await file.fetchSettings()
+      const data = await api.fetchSettings()
       data.repos = Object.keys(data.repositories).map(name => ({
         name,
         path: data.repositories[name]
@@ -131,7 +131,7 @@ export default defineComponent({
 
         const data = { repositories, shell: value.shell }
 
-        await file.writeSettings(data)
+        await api.writeSettings(data)
         store.dispatch('fetchRepositories')
       }
       emit('close')
@@ -142,7 +142,7 @@ export default defineComponent({
       if (target.name && target.name.endsWith('[path]')) {
         const jsonPath = target.name.replace(/\]/g, '').replace(/\[/g, '.')
         const field = editor.getEditor(jsonPath)
-        const { canceled, filePaths } = await file.choosePath({
+        const { canceled, filePaths } = await api.choosePath({
           properties: ['openDirectory', 'createDirectory'],
         })
 
diff --git a/src/renderer/components/StatusBarMenu.vue b/src/renderer/components/StatusBarMenu.vue
index b7be11d7..addac80c 100644
--- a/src/renderer/components/StatusBarMenu.vue
+++ b/src/renderer/components/StatusBarMenu.vue
@@ -18,8 +18,8 @@
 
 <script lang="ts">
 import { defineComponent, onBeforeUnmount, ref } from 'vue'
-import { useBus } from '../useful/bus'
-import { getMenus, MenuItem } from '../useful/plugin/status-bar'
+import { getMenus, MenuItem } from '@fe/context/status-bar'
+import { hookAction } from '@fe/context/action'
 import SvgIcon from './SvgIcon.vue'
 
 export default defineComponent({
@@ -32,7 +32,6 @@ export default defineComponent({
     }
   },
   setup (props) {
-    const bus = useBus()
     const list = ref(getMenus(props.position))
     const showList = ref(true)
 
@@ -48,9 +47,9 @@ export default defineComponent({
       list.value = getMenus(props.position)
     }
 
-    bus.on('status-bar-menu-update', updateMenu)
+    const cleanup = hookAction('before-run', 'status-bar.refresh-menu', updateMenu)
     onBeforeUnmount(() => {
-      bus.off('status-bar-menu-update', updateMenu)
+      cleanup()
     })
 
     return {
diff --git a/src/renderer/components/Tabs.vue b/src/renderer/components/Tabs.vue
index 8ba3fd3d..853ee738 100644
--- a/src/renderer/components/Tabs.vue
+++ b/src/renderer/components/Tabs.vue
@@ -20,8 +20,8 @@
 <script lang="ts">
 import Sortable from 'sortablejs'
 import { computed, defineComponent, nextTick, onMounted, ref, watch } from 'vue'
-import { useContextMenu } from '../useful/context-menu'
-import { Components } from '../types'
+import { useContextMenu } from '@fe/support/context-menu'
+import { Components } from '@fe/support/types'
 import SvgIcon from './SvgIcon.vue'
 
 export default defineComponent({
diff --git a/src/renderer/components/TitleBar.vue b/src/renderer/components/TitleBar.vue
index 0b3babe2..a65535bb 100644
--- a/src/renderer/components/TitleBar.vue
+++ b/src/renderer/components/TitleBar.vue
@@ -31,9 +31,10 @@
 <script lang="ts">
 import { computed, defineComponent, onBeforeUnmount, onMounted, ref, toRefs, watch } from 'vue'
 import { useStore } from 'vuex'
-import env from '@fe/useful/env'
-import File from '@fe/useful/file'
+import env from '@fe/utils/env'
+import { isEncrypted } from '@fe/context/document'
 import SvgIcon from './SvgIcon.vue'
+import { Doc } from '@fe/support/types'
 
 const { isElectron, isMacOS } = env
 
@@ -43,8 +44,8 @@ export default defineComponent({
   setup () {
     const store = useStore()
 
-    const { currentFile, savedAt, currentContent, previousContent } = toRefs(store.state)
-    const saved = computed(() => currentContent.value === previousContent.value)
+    const { currentFile } = toRefs(store.state)
+    const { isSaved } = toRefs(store.getters)
 
     let win: any = null
 
@@ -96,7 +97,7 @@ export default defineComponent({
     onMounted(() => {
       if (!isElectron) {
         window.onbeforeunload = () => {
-          return !saved.value || null
+          return !isSaved.value || null
         }
       }
 
@@ -135,20 +136,27 @@ export default defineComponent({
     const statusText = computed(() => {
       let status = ''
 
-      if (savedAt.value === null && currentFile.value) {
-        status = '加载完毕'
-      } else if (savedAt.value) {
-        status = saved.value ? '已保存' : '未保存'
-      }
+      const file: Doc = currentFile.value
 
-      const file = currentFile.value
       if (file) {
         if (file.repo === '__help__') {
           return file.title
         }
 
+        if (!isSaved.value) {
+          status = '未保存'
+        } else if (file.status === 'saved') {
+          status = '已保存'
+        } else if (file.status === 'save-failed') {
+          status = '保存失败！'
+        } else if (file.status === 'loaded') {
+          status = '加载完毕'
+        } else {
+          status = '加载中…'
+        }
+
         if (file.path && file.repo) {
-          return `${file.path}-${status} [${file.repo}]`
+          return `${isSaved.value ? '' : '*'}${file.path}-${status} [${file.repo}]`
         } else {
           return file.name
         }
@@ -162,7 +170,7 @@ export default defineComponent({
         return { background: '#818181' }
       }
 
-      if (!saved.value && File.isEncryptedFile(currentFile.value)) {
+      if (currentFile.value && !isSaved.value && (isEncrypted(currentFile.value) || currentFile.value.status === 'save-failed')) {
         return { background: '#ff9800ad' }
       }
 
@@ -173,9 +181,9 @@ export default defineComponent({
       document.title = currentFile.value ? (currentFile.value.name || currentFile.value.title || 'Yank Note') : '未打开文件'
     }, { immediate: true })
 
-    watch(saved, val => {
+    watch(isSaved, (val: boolean) => {
       // 暴露文档保存状态给 Electron 用
-      (window as any).documentSaved = val
+      window.documentSaved = val
     }, { immediate: true })
 
     return {
diff --git a/src/renderer/components/Toast.vue b/src/renderer/components/Toast.vue
index 7d0a11c3..d4b80dc9 100644
--- a/src/renderer/components/Toast.vue
+++ b/src/renderer/components/Toast.vue
@@ -4,7 +4,7 @@
 
 <script lang="ts">
 import { defineComponent, ref } from 'vue'
-import { Components } from '../types'
+import { Components } from '@fe/support/types'
 
 interface ToastData {
   type: Components.Toast.ToastType;
diff --git a/src/renderer/components/Tree.vue b/src/renderer/components/Tree.vue
index 5430fbd5..b08ba1b7 100644
--- a/src/renderer/components/Tree.vue
+++ b/src/renderer/components/Tree.vue
@@ -14,31 +14,22 @@
 </template>
 
 <script lang="ts">
-import { computed, defineComponent, onBeforeMount, onBeforeUnmount, toRefs, watch } from 'vue'
+import { computed, defineComponent, onBeforeMount, toRefs, watch } from 'vue'
 import { useStore } from 'vuex'
-import { useBus } from '../useful/bus'
-import { useContextMenu } from '../useful/context-menu'
+import { useContextMenu } from '@fe/support/context-menu'
+import { getAction } from '@fe/context/action'
+import { refreshRepo, refreshTree } from '@fe/context/tree'
 import TreeNode from './TreeNode.vue'
 
 export default defineComponent({
   name: 'tree',
   components: { TreeNode },
   setup () {
-    const bus = useBus()
     const store = useStore()
     const contextMenu = useContextMenu()
 
     const { currentRepo, tree, repositories } = toRefs(store.state)
 
-    function refreshTree () {
-      store.dispatch('fetchTree', currentRepo.value)
-    }
-
-    function refreshRepo () {
-      refreshTree()
-      store.dispatch('fetchRepositories')
-    }
-
     function showContextMenu () {
       contextMenu.show([
         {
@@ -50,30 +41,13 @@ export default defineComponent({
     }
 
     function showSetting () {
-      bus.emit('show-setting')
+      getAction('status-bar.show-setting')()
     }
 
     onBeforeMount(() => {
-      bus.on('file-created', refreshTree)
-      bus.on('file-moved', refreshTree)
-      bus.on('file-deleted', refreshTree)
-      bus.on('file-uploaded', refreshTree)
-      bus.on('file-marked', refreshTree)
-      bus.on('file-unmarked', refreshTree)
-      bus.on('tree-refresh', refreshTree)
       refreshTree()
     })
 
-    onBeforeUnmount(() => {
-      bus.off('file-created', refreshTree)
-      bus.off('file-moved', refreshTree)
-      bus.off('file-deleted', refreshTree)
-      bus.off('file-uploaded', refreshTree)
-      bus.off('file-marked', refreshTree)
-      bus.off('file-unmarked', refreshTree)
-      bus.off('tree-refresh', refreshTree)
-    })
-
     watch(currentRepo, refreshTree)
 
     const hasRepo = computed(() => Object.keys(repositories.value).length > 0)
diff --git a/src/renderer/components/TreeNode.vue b/src/renderer/components/TreeNode.vue
index a39a4914..c44716e4 100644
--- a/src/renderer/components/TreeNode.vue
+++ b/src/renderer/components/TreeNode.vue
@@ -33,17 +33,14 @@
 <script lang="ts">
 import { computed, defineComponent, nextTick, ref, toRefs, watch } from 'vue'
 import { useStore } from 'vuex'
-import { useBus } from '@fe/useful/bus'
-import { useToast } from '@fe/useful/toast'
-import { useModal } from '@fe/useful/modal'
-import { useContextMenu } from '@fe/useful/context-menu'
-import File from '@fe/useful/file'
-import { basename, dirname, isBelongTo } from '@fe/useful/path'
-import Extensions from '@fe/useful/extensions'
-import { triggerHook } from '@fe/useful/plugin'
-import { getContextMenuItems } from '@fe/useful/plugin/tree'
-import { FLAG_DISABLE_XTERM } from '@fe/useful/global-args'
-import { Components } from '@fe/types'
+import { useContextMenu } from '@fe/support/context-menu'
+import Extensions from '@fe/support/extensions'
+import { triggerHook } from '@fe/context/plugin'
+import { getContextMenuItems, refreshTree } from '@fe/context/tree'
+import { FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import { Components } from '@fe/support/types'
+import { getAction } from '@fe/context/action'
+import { createDoc, deleteDoc, duplicateDoc, isEncrypted, markDoc, moveDoc, openInOS, switchDoc, unmarkDoc } from '@fe/context/document'
 import SvgIcon from './SvgIcon.vue'
 
 export default defineComponent({
@@ -52,9 +49,6 @@ export default defineComponent({
   props: ['item'],
   setup (props) {
     const store = useStore()
-    const bus = useBus()
-    const toast = useToast()
-    const modal = useModal()
     const contextMenu = useContextMenu()
 
     const refDir = ref<any>(null)
@@ -67,181 +61,68 @@ export default defineComponent({
 
     const { currentFile, currentRepo } = toRefs(store.state)
 
-    async function createFile (path: string | null = null, content: string | null = null) {
-      if (path === null) {
-        const currentPath = props.item.type === 'dir' ? props.item.path : dirname(props.item.path)
-
-        let filename = await modal.input({
-          title: '创建文件(加密文件以 .c.md 结尾)',
-          hint: '文件路径',
-          content: '当前路径：' + currentPath,
-          value: 'new.md',
-          select: true
-        })
-
-        if (!filename) {
-          return
-        }
-
-        if (!filename.endsWith('.md')) {
-          filename = filename.replace(/\/$/, '') + '.md'
-        }
-
-        path = currentPath.replace(/\/$/, '') + '/' + filename
-      }
-
-      if (!path) {
-        return
-      }
-
-      const filename = basename(path)
-
-      const file = {
-        type: 'file',
-        repo: props.item.repo,
-        path,
-        name: filename,
-      }
-
-      if (content === null) {
-        content = `# ${filename.replace(/\.md$/i, '')}\n`
-      }
-
-      bus.emit('file-new', { file, content })
+    async function createFile () {
+      await createDoc({ repo: props.item.repo }, props.item)
     }
 
     async function duplicateFile () {
-      let newPath = await modal.input({
-        title: '重复文件',
-        hint: '目标路径',
-        content: '当前路径：' + props.item.path,
-        value: props.item.path,
-        // 默认选中文件名
-        select: [props.item.path.lastIndexOf('/') + 1, props.item.name.lastIndexOf('.') > -1 ? props.item.path.lastIndexOf('.') : props.item.path.length, 'forward']
-      })
-
-      if (!newPath) {
-        return
-      }
-
-      newPath = newPath.replace(/\/$/, '')
-
-      const { content } = await File.read({ path: props.item.path, repo: props.item.repo })
-      await createFile(newPath, content)
+      await duplicateDoc(props.item)
     }
 
     async function toggleMark () {
       if (props.item.marked) {
         localMarked.value = false
-        await File.unmark(props.item)
-        bus.emit('file-unmarked', props.item)
+        await unmarkDoc(props.item)
       } else {
         localMarked.value = true
-        await File.mark(props.item)
-        bus.emit('file-marked', props.item)
+        await markDoc(props.item)
       }
     }
 
     async function select (item: any) {
       if (item.type !== 'dir') {
         if (Extensions.supported(item.name)) {
-          store.commit('setCurrentFile', item)
+          switchDoc(item)
         } else {
           if (!(await triggerHook('ON_TREE_NODE_SELECT', item))) {
-            File.openInOS(props.item)
+            openInOS(item)
           }
         }
       }
     }
 
     function revealInExplorer () {
-      File.openInOS(props.item)
+      openInOS(props.item)
     }
 
     function revealInXterminal () {
       const path = currentRepo.value ? currentRepo.value.path + '/' + props.item.path : ''
 
-      bus.emit('xterm-run', `--yank-note-run-command-cd-- ${path}`)
+      getAction('xterm.run')(`--yank-note-run-command-cd-- ${path}`)
     }
 
-    async function renameFile () {
-      if (props.item.path === '/') {
-        toast.show('warning', '不能移动根目录')
-        return
-      }
-
-      let newPath = await modal.input({
-        title: '移动文件',
-        hint: '新的路径',
-        content: '当前路径：' + props.item.path,
-        value: props.item.path,
-        // 默认选中文件名
-        select: [props.item.path.lastIndexOf('/') + 1, props.item.name.lastIndexOf('.') > -1 ? props.item.path.lastIndexOf('.') : props.item.path.length, 'forward']
-      })
-
-      if (!newPath) {
-        return
-      }
-
-      newPath = newPath.replace(/\/$/, '')
-      const oldPath = props.item.path.replace(/\/$/, '')
-
-      if (newPath === oldPath) {
-        return
-      }
-
-      // TODO 文件统一处理
-      // bus.emit('file-move', {file, newPath})
-      const newFile = {
-        name: basename(newPath),
-        path: newPath,
-        repo: props.item.repo,
-        type: props.item.type
-      }
-
-      await File.move(props.item, newPath)
-      // 重命名当前文件或父目录后，切换到新位置
-      if (currentFile.value && (File.isSameFile(props.item, currentFile.value) || (props.item.type === 'dir' && isBelongTo(props.item.path, currentFile.value.path)))) {
-        if (newFile.type === 'file') {
-          store.commit('setCurrentFile', newFile)
-        } else {
-          // TODO 切换到新位置
-          store.commit('setCurrentFile', null)
-        }
-      }
-
-      bus.emit('file-moved', newFile)
+    async function moveFile () {
+      await moveDoc(props.item)
     }
 
     async function deleteFile () {
-      if (props.item.path === '/') {
-        toast.show('warning', '不能删除根目录')
-        return
-      }
-
-      const confirm = await modal.confirm({ title: '删除文件', content: `确定要删除 [${props.item.path}] 吗？` })
-
-      if (confirm) {
-        await File.delete(props.item)
-
-        // 删除当前文件或父目录后，关闭当前文件
-        if (currentFile.value && (File.isSameFile(props.item, currentFile.value) || (props.item.type === 'dir' && isBelongTo(props.item.path, currentFile.value.path)))) {
-          store.commit('setCurrentFile', null)
-        }
-
-        bus.emit('file-deleted', props.item)
-      }
+      await deleteDoc(props.item)
     }
 
     function buildContextMenu (item: any) {
       const menu: Components.ContextMenu.Item[] = [
-        { id: 'delete', label: '删除', onClick: () => deleteFile() },
-        { id: 'rename', label: '重命名 / 移动', onClick: () => renameFile() },
         { type: 'separator' },
         { id: 'openInOS', label: '在系统中打开', onClick: () => revealInExplorer() },
-        { id: 'refreshTree', label: '刷新目录树', onClick: () => bus.emit('tree-refresh') },
+        { id: 'refreshTree', label: '刷新目录树', onClick: refreshTree },
       ]
 
+      if (item.path !== '/') {
+        menu.unshift(...[
+          { id: 'rename', label: '重命名 / 移动', onClick: () => moveFile() },
+          { id: 'delete', label: '删除', onClick: () => deleteFile() },
+        ] as Components.ContextMenu.Item[])
+      }
+
       if (item.type === 'dir') {
         const other = FLAG_DISABLE_XTERM ? [] : [{ id: 'openInTerminal', label: '在终端中打开', onClick: () => revealInXterminal() }]
 
@@ -258,7 +139,7 @@ export default defineComponent({
           ]
 
           // 非加密文件增加复制重复菜单
-          if (!File.isEncryptedFile(props.item)) {
+          if (!isEncrypted(props.item)) {
             additional.push({ id: 'duplicate', label: '重复文件', onClick: () => duplicateFile() })
           }
 
@@ -326,16 +207,9 @@ export default defineComponent({
       currentRepoName,
       selected,
       marked,
-
       showContextMenu,
-      duplicateFile,
-      toggleMark,
       select,
-      revealInExplorer,
-      revealInXterminal,
       createFile,
-      renameFile,
-      deleteFile
     }
   },
 })
diff --git a/src/renderer/components/Xterm.vue b/src/renderer/components/Xterm.vue
index ebc78198..522363d1 100644
--- a/src/renderer/components/Xterm.vue
+++ b/src/renderer/components/Xterm.vue
@@ -10,9 +10,11 @@ import { defineComponent, nextTick, onBeforeMount, onBeforeUnmount, ref } from '
 import { useStore } from 'vuex'
 import { Terminal } from 'xterm'
 import { FitAddon } from 'xterm-addon-fit'
-import { useBus } from '../useful/bus'
-import { $args, FLAG_DEMO, FLAG_DISABLE_XTERM } from '../useful/global-args'
-import { getLogger } from '../useful/utils'
+import { useBus } from '@fe/support/bus'
+import { $args, FLAG_DEMO, FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import { toggleXterm } from '@fe/context/layout'
+import { registerAction, removeAction } from '@fe/context/action'
+import { getLogger } from '@fe/utils'
 import 'xterm/css/xterm.css'
 
 const logger = getLogger('component-x-term')
@@ -88,7 +90,7 @@ export default defineComponent({
         socket.on('output', (arrayBuffer: any) => xterm!.write(arrayBuffer))
         socket.on('disconnect', () => {
           xterm!.clear()
-          bus.emit('toggle-xterm', false)
+          toggleXterm(false)
         })
       }
 
@@ -105,7 +107,7 @@ export default defineComponent({
         return
       }
 
-      bus.emit('toggle-xterm', true)
+      toggleXterm(true)
       nextTick(() => {
         init()
 
@@ -151,15 +153,15 @@ export default defineComponent({
     }
 
     onBeforeMount(() => {
-      (window as any).runInXterm = runInXterm
-      bus.on('xterm-run', handleRunInXterm)
-      bus.on('xterm-init', init)
+      registerAction('xterm.run-code', runInXterm)
+      registerAction('xterm.run', handleRunInXterm)
+      registerAction('xterm.init', init)
     })
 
     onBeforeUnmount(() => {
-      (window as any).runInXterm = null
-      bus.off('xterm-init', init)
-      bus.off('xterm-run', handleRunInXterm)
+      removeAction('xterm.run-code')
+      removeAction('xterm.run')
+      removeAction('xterm.init')
     })
 
     return {
diff --git a/src/renderer/context/action.ts b/src/renderer/context/action.ts
new file mode 100644
index 00000000..b08bef81
--- /dev/null
+++ b/src/renderer/context/action.ts
@@ -0,0 +1,50 @@
+import { getLogger } from '@fe/utils'
+import { useBus } from '@fe/support/bus'
+import type { ActionName as ViewActionName } from './view'
+import type { ActionName as LayoutActionName } from './layout'
+import type { ActionName as StatusBarActionName } from './status-bar'
+import type { ActionName as EditorActionName } from './editor'
+import type { ActionName as TreeActionName } from './tree'
+import type { ActionName as DocActionName } from './document'
+
+const logger = getLogger('action')
+const bus = useBus()
+
+export type ActionFun = (...args: any[]) => any
+export type ActionName = ViewActionName | LayoutActionName | StatusBarActionName | EditorActionName | TreeActionName | DocActionName
+export type HookType = 'before-run' | 'after-run'
+
+export const actions: { [key: string]: ActionFun } = {}
+
+export function hookAction (type: HookType, name: ActionName, handler: (payload: any) => void): () => void
+export function hookAction (type: HookType, name: string, handler: (payload: any) => void): () => void
+export function hookAction (type: HookType, name: string, handler: (payload: any) => void) {
+  bus.on(`action.${type}.${name}`, handler)
+  return () => bus.off(`action.${type}.${name}`, handler)
+}
+
+export function registerAction (name: ActionName, handler: ActionFun): void
+export function registerAction (name: string, handler: ActionFun): void
+export function registerAction (name: string, handler: ActionFun) {
+  logger.debug('registerAction', name)
+  actions[name] = handler
+}
+
+export function getAction (name: ActionName): ActionFun
+export function getAction (name: string): ActionFun
+export function getAction (name: string) {
+  logger.debug('getAction', name)
+  return (...args: any[]) => {
+    bus.emit(`action.before-run.${name}`, args)
+    const result = actions[name]?.(...args)
+    bus.emit(`action.after-run.${name}`, result)
+    return result
+  }
+}
+
+export function removeAction (name: ActionName): void
+export function removeAction (name: string): void
+export function removeAction (name: string) {
+  logger.debug('removeAction', name)
+  delete actions[name]
+}
diff --git a/src/renderer/useful/plugin/build-in.ts b/src/renderer/context/build-in-plugins.ts
similarity index 100%
rename from src/renderer/useful/plugin/build-in.ts
rename to src/renderer/context/build-in-plugins.ts
diff --git a/src/renderer/context/document.ts b/src/renderer/context/document.ts
new file mode 100644
index 00000000..6fd2461c
--- /dev/null
+++ b/src/renderer/context/document.ts
@@ -0,0 +1,339 @@
+import { Optional } from 'utility-types'
+import Crypto from '@fe/utils/crypto'
+import { useModal } from '@fe/support/modal'
+import { useToast } from '@fe/support/toast'
+import store from '@fe/support/store'
+import type { Doc } from '@fe/support/types'
+import { basename, dirname, join } from '@fe/utils/path'
+import { useBus } from '@fe/support/bus'
+import * as api from '@fe/support/api'
+import { getLogger } from '@fe/utils'
+import { registerAction } from './action'
+
+export type ActionName = 'doc.create'
+  | 'doc.create'
+  | 'doc.delete'
+  | 'doc.move'
+  | 'doc.mark'
+  | 'doc.unmark'
+  | 'doc.open-in-os'
+  | 'doc.save'
+  | 'doc.switch'
+  | 'doc.show-help'
+
+const logger = getLogger('document')
+const bus = useBus()
+
+function decrypt (content: any, password: string) {
+  if (!password) {
+    throw new Error('未输入解密密码')
+  }
+
+  return Crypto.decrypt(content, password)
+}
+
+function encrypt (content: any, password: string) {
+  if (!password) {
+    throw new Error('未输入解密密码')
+  }
+
+  return Crypto.encrypt(content, password)
+}
+
+async function inputPassword (title: string, filename: string) {
+  const password = await useModal().input({ title, type: 'password', hint: filename })
+  if (!password) {
+    throw new Error('未输入密码')
+  }
+
+  return password
+}
+
+export function isEncrypted (doc?: Pick<Doc, 'path'> | null) {
+  return doc && doc.path.toLowerCase().endsWith('.c.md')
+}
+
+export function isSameFile (a?: Doc | null, b?: Doc | null) {
+  return a && b && a.repo === b.repo && a.path === b.path
+}
+
+export function toUri (doc?: Doc | null) {
+  if (doc && doc.repo && doc.path) {
+    return encodeURI(`yank-note://${doc.repo}/${doc.path.replace(/^\//, '')}`)
+  } else {
+    return 'yank-note://system/blank.md'
+  }
+}
+
+export async function createDoc (doc: Pick<Doc, 'repo' | 'path' | 'content'>, baseDoc: Doc): Promise<Doc>
+export async function createDoc (doc: Optional<Pick<Doc, 'repo' | 'path' | 'content'>, 'path'>, baseDoc?: Doc): Promise<Doc>
+export async function createDoc (doc: Optional<Pick<Doc, 'repo' | 'path' | 'content'>, 'path'>, baseDoc?: Doc) {
+  if (!doc.path) {
+    if (baseDoc) {
+      const currentPath = baseDoc.type === 'dir' ? baseDoc.path : dirname(baseDoc.path)
+
+      let filename = await useModal().input({
+        title: '创建文件(加密文件以 .c.md 结尾)',
+        hint: '文件路径',
+        content: '当前路径：' + currentPath,
+        value: 'new.md',
+        select: true
+      })
+
+      if (!filename) {
+        return
+      }
+
+      if (!filename.endsWith('.md')) {
+        filename = filename.replace(/\/$/, '') + '.md'
+      }
+
+      doc.path = join(currentPath, filename).replace(/^\//, '')
+    }
+  }
+
+  if (!doc.path) {
+    throw new Error('需要传入文件路径')
+  }
+
+  const filename = basename(doc.path)
+
+  const file: Doc = { ...doc, path: doc.path, type: 'file', name: filename, contentHash: 'new' }
+
+  if (typeof file.content !== 'string') {
+    file.content = `# ${filename.replace(/\.md$/i, '')}\n`
+  }
+
+  try {
+    // 加密文件内容
+    if (isEncrypted(file)) {
+      const password = await inputPassword('[创建] 请输入密码', file.name)
+      const encrypted = encrypt(file.content, password)
+      file.content = encrypted.content
+    }
+
+    await api.writeFile(file, file.content)
+
+    bus.emit('doc.created', file)
+  } catch (error) {
+    useToast().show('warning', error.message)
+    console.error(error)
+  }
+
+  return file
+}
+
+export async function duplicateDoc (origin: Doc) {
+  let newPath = await useModal().input({
+    title: '重复文件',
+    hint: '目标路径',
+    content: '当前路径：' + origin.path,
+    value: origin.path,
+    // 默认选中文件名
+    select: [
+      origin.path.lastIndexOf('/') + 1,
+      origin.name.lastIndexOf('.') > -1 ? origin.path.lastIndexOf('.') : origin.path.length,
+      'forward'
+    ]
+  })
+
+  if (!newPath) {
+    return
+  }
+
+  newPath = newPath.replace(/\/$/, '')
+
+  const { content } = await api.readFile(origin)
+
+  await createDoc({ repo: origin.repo, path: newPath, content })
+}
+
+export async function deleteDoc (doc: Doc) {
+  if (doc.path === '/') {
+    throw new Error('不能删除根目录')
+  }
+
+  const confirm = await useModal().confirm({ title: '删除文件', content: `确定要删除 [${doc.path}] 吗？` })
+
+  if (confirm) {
+    await api.deleteFile(doc)
+
+    bus.emit('doc.deleted', doc)
+  }
+}
+
+export async function moveDoc (doc: Doc, newPath?: string) {
+  if (doc.path === '/') {
+    throw new Error('不能移动根目录')
+  }
+
+  newPath = newPath ?? await useModal().input({
+    title: '移动文件',
+    hint: '新的路径',
+    content: '当前路径：' + doc.path,
+    value: doc.path,
+    // 默认选中文件名
+    select: [
+      doc.path.lastIndexOf('/') + 1,
+      doc.name.lastIndexOf('.') > -1 ? doc.path.lastIndexOf('.') : doc.path.length,
+      'forward'
+    ]
+  })
+
+  if (!newPath) {
+    return
+  }
+
+  newPath = newPath.replace(/\/$/, '')
+  const oldPath = doc.path.replace(/\/$/, '')
+
+  if (newPath === oldPath) {
+    return
+  }
+
+  const newDoc: Doc = {
+    name: basename(newPath),
+    path: newPath,
+    repo: doc.repo,
+    type: doc.type
+  }
+
+  await api.moveFile(doc, newPath)
+
+  bus.emit('doc.moved', { oldDoc: doc, newDoc })
+}
+
+export async function saveDoc (doc: Doc, content: string) {
+  logger.debug('saveDoc', doc)
+  try {
+    let sendContent = content
+    let passwordHash = ''
+
+    // 加密文件内容
+    if (isEncrypted(doc)) {
+      const password = await inputPassword('[保存] 请输入密码', doc.name)
+      const encrypted = encrypt(sendContent, password)
+      if (doc.passwordHash !== encrypted.passwordHash) {
+        if (!(await useModal().confirm({ title: '提示', content: '密码和上一次输入的密码不一致，是否用新密码保存？' }))) {
+          return
+        }
+      }
+
+      sendContent = encrypted.content
+      passwordHash = encrypted.passwordHash
+    }
+
+    const { hash } = await api.writeFile(doc, sendContent)
+    Object.assign(doc, {
+      content,
+      passwordHash,
+      contentHash: hash,
+      status: 'saved'
+    })
+    bus.emit('doc.saved', store.state.currentFile)
+  } catch (error) {
+    store.commit('setCurrentFile', { ...doc, status: 'save-failed' })
+    useToast().show('warning', error.message)
+    throw error
+  }
+}
+
+export async function ensureCurrentFileSaved () {
+  const { currentFile, currentContent } = store.state
+  if (!currentFile || !currentFile.status) {
+    return
+  }
+
+  try {
+    if (isEncrypted(currentFile)) {
+      if (!store.getters.isSaved && !(await useModal().confirm({ title: '未保存文件', content: '确定要离开吗？' }))) {
+        throw new Error('请先保存文件')
+      } else {
+        store.commit('setCurrentFile', null)
+      }
+    } else {
+      if (currentFile && currentContent && currentFile.content !== currentContent && currentFile.repo !== '__help__') {
+        await saveDoc(currentFile, currentContent)
+      }
+    }
+  } catch (error) {
+    useToast().show('warning', error.message)
+    throw error
+  }
+}
+
+export async function switchDoc (doc: Doc | null) {
+  logger.debug('switchDoc', doc)
+
+  await ensureCurrentFileSaved()
+
+  try {
+    if (!doc) {
+      store.commit('setCurrentFile', null)
+      bus.emit('doc.switched', null)
+      return
+    }
+
+    store.commit('setCurrentFile', { ...doc, status: undefined })
+
+    let passwordHash = ''
+    let { content, hash } = await api.readFile(doc)
+
+    // 解密文件内容
+    if (isEncrypted(doc)) {
+      const password = await inputPassword('[打开] 请输入密码', doc.name)
+      const decrypted = decrypt(content, password)
+      content = decrypted.content
+      passwordHash = decrypted.passwordHash
+    }
+
+    store.commit('setCurrentFile', {
+      ...doc,
+      content,
+      passwordHash,
+      contentHash: hash,
+      status: 'loaded'
+    })
+
+    bus.emit('doc.switched', store.state.currentFile)
+  } catch (error) {
+    bus.emit('doc.switch-failed', { doc, message: error.message })
+    useToast().show('warning', error.message.includes('Malformed') ? '密码错误' : error.message)
+    throw error
+  }
+}
+
+export async function markDoc (doc: Doc) {
+  await api.markFile(doc)
+  bus.emit('doc.changed', doc)
+}
+
+export async function unmarkDoc (doc: Doc) {
+  await api.unmarkFile(doc)
+  bus.emit('doc.changed', doc)
+}
+
+export async function openInOS (doc: Doc) {
+  await api.openInOS(doc)
+}
+
+export async function showHelp (doc: string) {
+  switchDoc({
+    type: 'file',
+    repo: '__help__',
+    title: doc,
+    name: doc,
+    path: doc,
+  })
+}
+
+registerAction('doc.create', createDoc)
+registerAction('doc.create', duplicateDoc)
+registerAction('doc.delete', deleteDoc)
+registerAction('doc.move', moveDoc)
+registerAction('doc.mark', markDoc)
+registerAction('doc.unmark', unmarkDoc)
+registerAction('doc.open-in-os', openInOS)
+registerAction('doc.save', saveDoc)
+registerAction('doc.switch', switchDoc)
+registerAction('doc.show-help', showHelp)
diff --git a/src/renderer/context/editor.ts b/src/renderer/context/editor.ts
new file mode 100644
index 00000000..66305768
--- /dev/null
+++ b/src/renderer/context/editor.ts
@@ -0,0 +1,15 @@
+import { getAction } from './action'
+
+export type ActionName = 'editor.get-editor'
+  | 'editor.insert-value'
+  | 'editor.replace-value'
+  | 'editor.get-line'
+  | 'editor.replace-line'
+  | 'editor.toggle-wrap'
+
+export const getEditor = () => getAction('editor.get-editor')()
+export const insertValue = (str: string) => getAction('editor.insert-value')(str)
+export const replaceValue = (search: string, replace: string) => getAction('editor.replace-value')(search, replace)
+export const getLine = (line: number) => getAction('editor.get-line')(line) as string
+export const replaceLine = (line: number, str: string) => getAction('editor.replace-line')(line, str)
+export const toggleWrap = () => getAction('editor.toggle-wrap')()
diff --git a/src/renderer/context/index.ts b/src/renderer/context/index.ts
new file mode 100644
index 00000000..a75e9e57
--- /dev/null
+++ b/src/renderer/context/index.ts
@@ -0,0 +1,32 @@
+import { useBus } from '@fe/support/bus'
+import { useToast } from '@fe/support/toast'
+import store from '@fe/support/store'
+import * as action from './action'
+import * as shortcut from './shortcut'
+import * as view from './view'
+import * as tree from './tree'
+import * as markdown from './markdown'
+import * as statusBar from './status-bar'
+import * as layout from './layout'
+import * as editor from './editor'
+
+export type CtxHookType = view.HookType | tree.HookType
+
+const bus = useBus()
+
+const ctx = {
+  bus,
+  store,
+  action,
+  shortcut,
+  ui: { useToast },
+  tree,
+  markdown,
+  statusBar,
+  layout,
+  editor
+}
+
+window.ctx = ctx
+
+export default ctx
diff --git a/src/renderer/context/layout.ts b/src/renderer/context/layout.ts
new file mode 100644
index 00000000..3a4c4b30
--- /dev/null
+++ b/src/renderer/context/layout.ts
@@ -0,0 +1,43 @@
+import { nextTick } from 'vue'
+import store from '@fe/support/store'
+import { useBus } from '@fe/support/bus'
+import { getAction, registerAction } from './action'
+
+export type ActionName = 'layout.toggle-view'
+  | 'layout.toggle-side'
+  | 'layout.toggle-xterm'
+
+const bus = useBus()
+
+export function emitResize () {
+  nextTick(() => bus.emit('resize'))
+}
+
+export function toggleSide () {
+  store.commit('setShowSide', !store.state.showSide)
+  emitResize()
+}
+
+export function toggleView () {
+  store.commit('setShowView', !store.state.showView)
+  emitResize()
+}
+
+export function toggleXterm (val?: boolean) {
+  const showXterm = store.state.showXterm
+  const show = typeof val === 'boolean' ? val : !showXterm
+
+  store.commit('setShowXterm', show)
+
+  nextTick(() => {
+    emitResize()
+
+    if (showXterm) {
+      getAction('xterm.init')()
+    }
+  })
+}
+
+registerAction('layout.toggle-view', toggleView)
+registerAction('layout.toggle-side', toggleSide)
+registerAction('layout.toggle-xterm', toggleXterm)
diff --git a/src/renderer/useful/markdown.ts b/src/renderer/context/markdown.ts
similarity index 51%
rename from src/renderer/useful/markdown.ts
rename to src/renderer/context/markdown.ts
index b152f8d8..541a500a 100644
--- a/src/renderer/useful/markdown.ts
+++ b/src/renderer/context/markdown.ts
@@ -1,15 +1,12 @@
 import Markdown from 'markdown-it'
 import MarkdownItAttrs from 'markdown-it-attrs'
 import MultimdTable from 'markdown-it-multimd-table'
-import { getPlugins as getMarkdownItPlugins } from '@fe/useful/plugin/markdown'
 
-const markdown = Markdown({ linkify: true, breaks: true, html: true })
+export const markdown = Markdown({ linkify: true, breaks: true, html: true })
 
-getMarkdownItPlugins().forEach(({ plugin, params }) => {
+export function registerPlugin (plugin: (md: Markdown, ...args: any) => void, params?: any) {
   markdown.use(plugin, params)
-})
+}
 
 markdown.use(MarkdownItAttrs)
 markdown.use(MultimdTable, { multiline: true })
-
-export default markdown
diff --git a/src/renderer/context/plugin.ts b/src/renderer/context/plugin.ts
new file mode 100644
index 00000000..05ba071d
--- /dev/null
+++ b/src/renderer/context/plugin.ts
@@ -0,0 +1,66 @@
+import { getLogger } from '@fe/utils'
+import buildInPlugins from './build-in-plugins'
+import context, { CtxHookType } from './index'
+
+const logger = getLogger('plugin')
+
+const ctx = { ...context, registerHook, removeHook, triggerHook }
+
+export type Ctx = typeof ctx;
+export type HookType = 'ON_STARTUP' | CtxHookType
+export type HookFun = (...args: any[]) => boolean | void | Promise<boolean | void>
+export interface Plugin {
+  name: string;
+  register?: (ctx: Ctx) => void;
+}
+
+const hooks: { [key in HookType]?: {fun: HookFun; once: boolean}[] } = {}
+const plugins: {[name: string]: Plugin} = {}
+
+export function registerHook (type: HookType, fun: HookFun, once = false) {
+  if (Array.isArray(hooks[type])) {
+    hooks[type] = [...hooks[type]!, { fun, once }]
+  } else {
+    hooks[type] = [{ fun, once }]
+  }
+}
+
+export function removeHook (type: HookType, fun: HookFun) {
+  if (Array.isArray(hooks[type])) {
+    hooks[type] = hooks[type]!.filter(x => x.fun !== fun)
+  }
+}
+
+export async function triggerHook (type: HookType, ...args: any[]) {
+  logger.debug('triggerHook', type, args)
+  for (const { fun, once } of (hooks[type] || [])) {
+    once && ctx.removeHook(type, fun)
+    if (await fun(...args)) {
+      return true
+    }
+  }
+
+  return false
+}
+
+export function register (plugin: Plugin) {
+  logger.debug('register', plugin)
+  plugins[plugin.name] = plugin
+  plugin.register && plugin.register(ctx)
+}
+
+function init () {
+  logger.debug('init')
+
+  buildInPlugins.forEach((plugin) => {
+    register(plugin)
+  })
+
+  window.registerPlugin = register
+
+  const script = window.document.createElement('script')
+  script.src = '/api/plugins'
+  window.document.body.appendChild(script)
+}
+
+init()
diff --git a/src/renderer/useful/shortcut.ts b/src/renderer/context/shortcut.ts
similarity index 97%
rename from src/renderer/useful/shortcut.ts
rename to src/renderer/context/shortcut.ts
index 6c8ae292..afc06711 100644
--- a/src/renderer/useful/shortcut.ts
+++ b/src/renderer/context/shortcut.ts
@@ -1,5 +1,5 @@
-import { getLogger } from './utils'
-import env from './env'
+import { getLogger } from '@fe/utils'
+import env from '@fe/utils/env'
 
 const logger = getLogger('shortcut')
 
diff --git a/src/renderer/useful/startup.ts b/src/renderer/context/startup.ts
similarity index 58%
rename from src/renderer/useful/startup.ts
rename to src/renderer/context/startup.ts
index 46171442..64bf8543 100644
--- a/src/renderer/useful/startup.ts
+++ b/src/renderer/context/startup.ts
@@ -1,21 +1,23 @@
-import { useStore } from 'vuex'
-import { useBus } from './bus'
-import env from './env'
+import { useBus } from '@fe/support/bus'
+import env from '@fe/utils/env'
+import { triggerHook } from '@fe/context/plugin'
+import store, { getLastOpenFile } from '@fe/support/store'
+import { Doc } from '@fe/support/types'
 import { hasCtrlCmd } from './shortcut'
-import { triggerHook } from './plugin'
+import { showHelp, switchDoc, unmarkDoc } from './document'
+import { refreshTree } from './tree'
+
+const bus = useBus()
 
 export default function startup () {
-  const bus = useBus()
-  const store = useStore()
-
   triggerHook('ON_STARTUP')
 
-  bus.on('editor-ready', () => {
+  bus.on('editor.ready', () => {
     const { currentFile } = store.state
 
     if (!currentFile) {
       // 当前没打开文件，直接打开 README
-      store.dispatch('showHelp', 'README.md')
+      showHelp('README.md')
     }
   })
 
@@ -53,3 +55,18 @@ export default function startup () {
     })
   }
 }
+
+const doc = getLastOpenFile()
+switchDoc(doc)
+
+bus.on('doc.created', refreshTree)
+bus.on('doc.deleted', refreshTree)
+bus.on('doc.moved', refreshTree)
+bus.on('doc.changed', refreshTree)
+bus.on('doc.switch-failed', refreshTree)
+
+bus.on('doc.switch-failed', (payload?: { doc?: Doc | null, message: string }) => {
+  if (payload && payload.doc && payload?.message?.indexOf('NOENT')) {
+    unmarkDoc(payload.doc)
+  }
+})
diff --git a/src/renderer/useful/plugin/status-bar.ts b/src/renderer/context/status-bar.ts
similarity index 76%
rename from src/renderer/useful/plugin/status-bar.ts
rename to src/renderer/context/status-bar.ts
index d2de9d65..f65969b1 100644
--- a/src/renderer/useful/plugin/status-bar.ts
+++ b/src/renderer/context/status-bar.ts
@@ -1,6 +1,6 @@
-import { useBus } from '@fe/useful/bus'
+import { getAction } from './action'
 
-const bus = useBus()
+export type ActionName = 'status-bar.show-setting' | 'status-bar.refresh-menu'
 
 export type MenuItem = {
   id: string;
@@ -26,9 +26,13 @@ const menus: { [key: string]: Menu } = {}
 export const getMenus = (position: string) =>
   Object.values(menus).filter(x => x.position === position)
 
+export function refreshMenu () {
+  getAction('status-bar.refresh-menu')()
+}
+
 export function updateMenu (menu: Menu) {
   menus[menu.id] = menu
-  bus.emit('status-bar-menu-update', menu)
+  refreshMenu()
 }
 
 export function tapMenu (id: string, fn: (menu: Menu) => Menu) {
@@ -37,12 +41,5 @@ export function tapMenu (id: string, fn: (menu: Menu) => Menu) {
 
 export function removeMenu (id: string) {
   delete menus[id]
-  bus.emit('status-bar-menu-update')
-}
-
-export const ctx = {
-  getMenus,
-  tapMenu,
-  updateMenu,
-  removeMenu,
+  refreshMenu()
 }
diff --git a/src/renderer/context/tree.ts b/src/renderer/context/tree.ts
new file mode 100644
index 00000000..2d293686
--- /dev/null
+++ b/src/renderer/context/tree.ts
@@ -0,0 +1,29 @@
+import { Components } from '@fe/support/types'
+import store from '@fe/support/store'
+import { registerAction } from './action'
+
+export type ActionName = 'tree.refresh'
+export type HookType = 'ON_TREE_NODE_SELECT'
+export type MenuItem = Components.ContextMenu.Item
+export type BuildContextMenu = (items: MenuItem[], node: any) => MenuItem[]
+
+const contextMenuFunList: BuildContextMenu[] = []
+
+export const registerContextMenu = (fun: BuildContextMenu) => {
+  contextMenuFunList.push(fun)
+}
+
+export const getContextMenuItems = (node: any) => {
+  return contextMenuFunList.reduce((items, fun) => fun(items, node), [] as MenuItem[])
+}
+
+export function refreshTree () {
+  store.dispatch('fetchTree')
+}
+
+export function refreshRepo () {
+  refreshTree()
+  store.dispatch('fetchRepositories')
+}
+
+registerAction('tree.refresh', refreshTree)
diff --git a/src/renderer/useful/plugin/view.ts b/src/renderer/context/view.ts
similarity index 84%
rename from src/renderer/useful/plugin/view.ts
rename to src/renderer/context/view.ts
index ba54608b..7e47d77f 100644
--- a/src/renderer/useful/plugin/view.ts
+++ b/src/renderer/context/view.ts
@@ -6,3 +6,5 @@ export type HookType = 'ON_VIEW_ELEMENT_CLICK'
   | 'ON_VIEW_MOUNTED'
   | 'ON_VIEW_FILE_CHANGE'
   | 'ON_VIEW_BEFORE_CONVERT'
+
+export type ActionName = 'view.refresh'
diff --git a/src/renderer/index.ts b/src/renderer/index.ts
index 9fe0a901..5aef1592 100644
--- a/src/renderer/index.ts
+++ b/src/renderer/index.ts
@@ -1,13 +1,14 @@
+import './support/demo'
+
 import { createApp } from 'vue'
-import './demo'
 import App from './App.vue'
 import router from './router'
-import store from './store'
 
-import bus from './useful/bus'
-import toast from './useful/toast'
-import modal from './useful/modal'
-import contextmenu from './useful/context-menu'
+import store from './support/store'
+import bus from './support/bus'
+import toast from './support/toast'
+import modal from './support/modal'
+import contextmenu from './support/context-menu'
 
 const app = createApp(App)
 
diff --git a/src/renderer/plugins/copy-text.ts b/src/renderer/plugins/copy-text.ts
index c31a7a17..dc5cb10c 100644
--- a/src/renderer/plugins/copy-text.ts
+++ b/src/renderer/plugins/copy-text.ts
@@ -1,21 +1,16 @@
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import { hasCtrlCmd } from '@fe/useful/shortcut'
-import { encodeMarkdownLink } from '@fe/useful/utils'
-import { useBus } from '@fe/useful/bus'
-import { copyText } from '@fe/useful/copy-text'
-import store from '@fe/store'
+import { Plugin, Ctx } from '@fe/context/plugin'
+import { hasCtrlCmd } from '@fe/context/shortcut'
+import { encodeMarkdownLink } from '@fe/utils'
+import { copyText } from '@fe/support/copy-text'
+import store from '@fe/support/store'
 
 export default {
   name: 'copy-text',
   register: (ctx: Ctx) => {
-    ctx.registerHook('ON_STARTUP', () => {
-      const bus = useBus()
-      bus.on('copy-text', copyText)
-    })
+    ctx.action.registerAction('app.copy-text', copyText)
 
     ctx.registerHook('ON_VIEW_ELEMENT_CLICK', async (e: MouseEvent) => {
       const target = e.target as HTMLElement
-      const bus = useBus()
 
       const preventEvent = () => {
         e.preventDefault()
@@ -26,13 +21,15 @@ export default {
       // 复制标题链接
       if (['H1', 'H2', 'H3', 'H4', 'H5', 'H6'].indexOf(target.tagName) > -1 && target.id && hasCtrlCmd(e)) {
         const { currentFile } = store.state
-        bus.emit('copy-text', encodeMarkdownLink(currentFile.path) + '#' + encodeMarkdownLink(decodeURIComponent(target.id)))
-        return preventEvent()
+        if (currentFile) {
+          copyText(encodeMarkdownLink(currentFile.path) + '#' + encodeMarkdownLink(decodeURIComponent(target.id)))
+          return preventEvent()
+        }
       }
 
       // 复制内容
       if (target.classList.contains('copy-inner-text') && hasCtrlCmd(e)) {
-        bus.emit('copy-text', target.innerText)
+        copyText(target.innerText)
         return preventEvent()
       }
 
diff --git a/src/renderer/plugins/markdown-applet.ts b/src/renderer/plugins/markdown-applet.ts
index ac4feece..cbd3e3f5 100644
--- a/src/renderer/plugins/markdown-applet.ts
+++ b/src/renderer/plugins/markdown-applet.ts
@@ -1,10 +1,10 @@
+import { defineComponent, h, onMounted, ref, watch } from 'vue'
 import CryptoJS from 'crypto-js'
 import { debounce } from 'lodash-es'
 import dayjs from 'dayjs'
 import Markdown from 'markdown-it'
-import { useBus } from '@fe/useful/bus'
-import { Plugin } from '@fe/useful/plugin'
-import { defineComponent, h, onMounted, ref, watch } from 'vue'
+import { useBus } from '@fe/support/bus'
+import { Plugin } from '@fe/context/plugin'
 
 const Applet = defineComponent({
   name: 'applet',
diff --git a/src/renderer/plugins/markdown-code.ts b/src/renderer/plugins/markdown-code.ts
index 7855daac..0f6777ff 100644
--- a/src/renderer/plugins/markdown-code.ts
+++ b/src/renderer/plugins/markdown-code.ts
@@ -1,7 +1,7 @@
 import Highlight from 'highlight.js'
-import { getKeyLabel } from '@fe/useful/shortcut'
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import { getLogger } from '../useful/utils'
+import { getKeyLabel } from '@fe/context/shortcut'
+import { Plugin, Ctx } from '@fe/context/plugin'
+import { getLogger } from '@fe/utils'
 
 const logger = getLogger('markdown-code')
 
diff --git a/src/renderer/plugins/markdown-drawio.ts b/src/renderer/plugins/markdown-drawio.ts
index 4d028862..53caabf7 100644
--- a/src/renderer/plugins/markdown-drawio.ts
+++ b/src/renderer/plugins/markdown-drawio.ts
@@ -1,9 +1,9 @@
 import Markdown from 'markdown-it'
-import { Plugin } from '@fe/useful/plugin'
-import file from '@fe/useful/file'
-import { useBus } from '@fe/useful/bus'
-import { openInNewWindow } from '@fe/useful/utils'
 import { defineComponent, h, ref, watch } from 'vue'
+import { Plugin } from '@fe/context/plugin'
+import * as api from '@fe/support/api'
+import { useBus } from '@fe/support/bus'
+import { openInNewWindow } from '@fe/utils'
 
 const Drawio = defineComponent({
   name: 'drawio',
@@ -102,7 +102,7 @@ async function buildSrcdoc ({ repo, path, content, url }: F) {
   if (url) {
     content = await (await fetch(url)).text()
   } else if (!content && repo && path) {
-    content = (await file.read({ repo, path })).content
+    content = (await api.readFile({ repo, path })).content
   }
 
   content = content.replace(/<!--.*?-->/gs, '').trim()
diff --git a/src/renderer/plugins/markdown-echarts.ts b/src/renderer/plugins/markdown-echarts.ts
index 4f4e7b15..7abe92c2 100644
--- a/src/renderer/plugins/markdown-echarts.ts
+++ b/src/renderer/plugins/markdown-echarts.ts
@@ -1,8 +1,8 @@
+import { h } from 'vue'
 import * as echarts from 'echarts'
 import CryptoJS from 'crypto-js'
 import Markdown from 'markdown-it'
-import { Plugin } from '@fe/useful/plugin'
-import { h } from 'vue'
+import { Plugin } from '@fe/context/plugin'
 
 const render = (code: string) => {
   const id = `echart-${CryptoJS.MD5(code).toString()}-${Math.random().toString(36).substr(2)}`
diff --git a/src/renderer/plugins/markdown-footnote.ts b/src/renderer/plugins/markdown-footnote.ts
index 345df8c4..f6e009f5 100644
--- a/src/renderer/plugins/markdown-footnote.ts
+++ b/src/renderer/plugins/markdown-footnote.ts
@@ -6,7 +6,7 @@
 // https://github.com/markdown-it/markdown-it-footnote/blob/master/index.js
 
 import { createVNode, Fragment } from 'vue'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 
 // Process footnotes
 //
diff --git a/src/renderer/plugins/markdown-html.ts b/src/renderer/plugins/markdown-html.ts
index 93aa7871..c98f8a57 100644
--- a/src/renderer/plugins/markdown-html.ts
+++ b/src/renderer/plugins/markdown-html.ts
@@ -1,4 +1,4 @@
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 import StateBlock from 'markdown-it/lib/rules_block/state_block'
 import StateInline from 'markdown-it/lib/rules_inline/state_inline'
 import Token from 'markdown-it/lib/token'
diff --git a/src/renderer/plugins/markdown-katex.ts b/src/renderer/plugins/markdown-katex.ts
index 04b49380..0ef5e91f 100644
--- a/src/renderer/plugins/markdown-katex.ts
+++ b/src/renderer/plugins/markdown-katex.ts
@@ -13,8 +13,8 @@ for rendering output.
 */
 
 import katex from 'katex'
-import { Plugin } from '@fe/useful/plugin'
 import { h } from 'vue'
+import { Plugin } from '@fe/context/plugin'
 
 // Test if potential opening or closing delimieter
 // Assumes that there is a "$" at state.src[pos]
diff --git a/src/renderer/plugins/markdown-link.ts b/src/renderer/plugins/markdown-link.ts
index 515bc8fb..e43c87f7 100644
--- a/src/renderer/plugins/markdown-link.ts
+++ b/src/renderer/plugins/markdown-link.ts
@@ -1,12 +1,17 @@
 import StateCore from 'markdown-it/lib/rules_core/state_core'
 import Token from 'markdown-it/lib/token'
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import store from '@fe/store'
-import env from '@fe/useful/env'
-import { basename, dirname, join } from '@fe/useful/path'
+import { Plugin, Ctx } from '@fe/context/plugin'
+import store from '@fe/support/store'
+import env from '@fe/utils/env'
+import { basename, dirname, join } from '@fe/utils/path'
+import { switchDoc } from '@fe/context/document'
 
 const handleLink = (link: HTMLAnchorElement, ctx: Ctx) => {
   const { currentFile } = store.state
+  if (!currentFile) {
+    return
+  }
+
   const { repo: fileRepo, path: filePath } = currentFile
 
   // 系统中打开附件
@@ -33,7 +38,7 @@ const handleLink = (link: HTMLAnchorElement, ctx: Ctx) => {
       }
 
       // 打开文件
-      store.commit('setCurrentFile', {
+      switchDoc({
         path,
         name: basename(path),
         repo: fileRepo,
diff --git a/src/renderer/plugins/markdown-mermaid.ts b/src/renderer/plugins/markdown-mermaid.ts
index daf1b1ca..1c230445 100644
--- a/src/renderer/plugins/markdown-mermaid.ts
+++ b/src/renderer/plugins/markdown-mermaid.ts
@@ -1,6 +1,6 @@
 import Markdown from 'markdown-it'
 import mermaid from 'mermaid/dist/mermaid.js'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 import { h } from 'vue'
 
 const mermaidChart: any = (code: string) => {
diff --git a/src/renderer/plugins/markdown-mind-map.ts b/src/renderer/plugins/markdown-mind-map.ts
index 38e7a2f3..22567ce9 100644
--- a/src/renderer/plugins/markdown-mind-map.ts
+++ b/src/renderer/plugins/markdown-mind-map.ts
@@ -1,9 +1,9 @@
 import { defineComponent, h, onMounted, ref, watch } from 'vue'
 import { debounce } from 'lodash-es'
 import Renderer from 'markdown-it/lib/renderer'
-import { Plugin } from '@fe/useful/plugin'
-import crypto from '@fe/useful/crypto'
-import { dataURItoBlobLink, openInNewWindow } from '@fe/useful/utils'
+import { Plugin } from '@fe/context/plugin'
+import crypto from '@fe/utils/crypto'
+import { dataURItoBlobLink, openInNewWindow } from '@fe/utils'
 
 const layoutStorageKey = 'mind-map-layout'
 
diff --git a/src/renderer/plugins/markdown-plantuml.ts b/src/renderer/plugins/markdown-plantuml.ts
index 3c595093..49614191 100644
--- a/src/renderer/plugins/markdown-plantuml.ts
+++ b/src/renderer/plugins/markdown-plantuml.ts
@@ -3,7 +3,7 @@ import { debounce } from 'lodash-es'
 import { defineComponent, h, nextTick, onMounted, reactive, ref, watch } from 'vue'
 import Markdown from 'markdown-it'
 import Token from 'markdown-it/lib/token'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 
 const emptySrc = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
 
diff --git a/src/renderer/plugins/markdown-render-vnode.ts b/src/renderer/plugins/markdown-render-vnode.ts
index 827bcca9..55917608 100644
--- a/src/renderer/plugins/markdown-render-vnode.ts
+++ b/src/renderer/plugins/markdown-render-vnode.ts
@@ -2,7 +2,7 @@ import { createVNode, Fragment, Text, VNode } from 'vue'
 import Token from 'markdown-it/lib/token'
 import Renderer from 'markdown-it/lib/renderer'
 import { escapeHtml, unescapeAll } from 'markdown-it/lib/common/utils'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 
 const attrNameReg = /^[a-zA-Z_:][a-zA-Z0-9:._-]*/
 const defaultRules = {} as any
diff --git a/src/renderer/plugins/markdown-run-code.ts b/src/renderer/plugins/markdown-run-code.ts
index 5f9fd74a..97977635 100644
--- a/src/renderer/plugins/markdown-run-code.ts
+++ b/src/renderer/plugins/markdown-run-code.ts
@@ -1,7 +1,8 @@
 import { computed, defineComponent, h, ref, VNode } from 'vue'
 import CryptoJS from 'crypto-js'
 import Markdown from 'markdown-it'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
+import { getAction } from '@fe/context/action'
 
 const cachePrefix = 'run_code_result_'
 
@@ -48,7 +49,7 @@ const RunCode = defineComponent({
     }
 
     const runInXterm = (e: MouseEvent) => {
-      (window as any).runInXterm(props.language, props.code, e.ctrlKey)
+      getAction('xterm.run-code')(props.language, props.code, e.ctrlKey)
     }
 
     return () => {
diff --git a/src/renderer/plugins/markdown-source-line.ts b/src/renderer/plugins/markdown-source-line.ts
index f502fdcd..198f2380 100644
--- a/src/renderer/plugins/markdown-source-line.ts
+++ b/src/renderer/plugins/markdown-source-line.ts
@@ -1,4 +1,4 @@
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 import Renderer from 'markdown-it/lib/renderer'
 
 const buildFunction = (className: string): Renderer.RenderRule => {
diff --git a/src/renderer/plugins/markdown-task-list.ts b/src/renderer/plugins/markdown-task-list.ts
index 20cf2056..6bc6893c 100644
--- a/src/renderer/plugins/markdown-task-list.ts
+++ b/src/renderer/plugins/markdown-task-list.ts
@@ -8,7 +8,7 @@
 // https://github.com/blog/1825-task-lists-in-all-markdown-documents
 
 import Markdown from 'markdown-it'
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 
 let disableCheckboxes = true
 
diff --git a/src/renderer/plugins/markdown-toc.ts b/src/renderer/plugins/markdown-toc.ts
index 504b4edb..e3a3b054 100644
--- a/src/renderer/plugins/markdown-toc.ts
+++ b/src/renderer/plugins/markdown-toc.ts
@@ -2,8 +2,8 @@
 
 import Markdown from 'markdown-it'
 import StateInline from 'markdown-it/lib/rules_inline/state_inline'
-import { getKeyLabel } from '@fe/useful/shortcut'
-import { Plugin } from '@fe/useful/plugin'
+import { getKeyLabel } from '@fe/context/shortcut'
+import { Plugin } from '@fe/context/plugin'
 
 import { injectLineNumbers } from './markdown-source-line'
 
diff --git a/src/renderer/plugins/status-bar-get.ts b/src/renderer/plugins/status-bar-get.ts
index bbd27d46..9a3a3a48 100644
--- a/src/renderer/plugins/status-bar-get.ts
+++ b/src/renderer/plugins/status-bar-get.ts
@@ -1,5 +1,5 @@
-import { FLAG_DEMO, URL_GITHUB, URL_MAS } from '@fe/useful/global-args'
-import { Plugin } from '@fe/useful/plugin'
+import { FLAG_DEMO, URL_GITHUB, URL_MAS } from '@fe/support/global-args'
+import { Plugin } from '@fe/context/plugin'
 
 export default {
   name: 'status-bar-github',
diff --git a/src/renderer/plugins/status-bar-help.ts b/src/renderer/plugins/status-bar-help.ts
index debb161b..7d9e19a7 100644
--- a/src/renderer/plugins/status-bar-help.ts
+++ b/src/renderer/plugins/status-bar-help.ts
@@ -1,6 +1,6 @@
-import { Plugin } from '@fe/useful/plugin'
-import { Alt, getActionLabel, isAction } from '@fe/useful/shortcut'
-import store from '@fe/store'
+import { showHelp } from '@fe/context/document'
+import { Plugin } from '@fe/context/plugin'
+import { Alt, getActionLabel, isAction } from '@fe/context/shortcut'
 
 export default {
   name: 'status-bar-view',
@@ -8,12 +8,12 @@ export default {
     const actions = {
       'toggle-readme': {
         title: 'README',
-        action: () => store.dispatch('showHelp', 'README.md'),
+        action: () => showHelp('README.md'),
         shortcut: [Alt, 'h'],
       },
       'toggle-features': {
         title: '特色功能说明',
-        action: () => store.dispatch('showHelp', 'FEATURES.md'),
+        action: () => showHelp('FEATURES.md'),
         shortcut: null,
       },
     }
diff --git a/src/renderer/plugins/status-bar-refresh.ts b/src/renderer/plugins/status-bar-refresh.ts
index 67273dac..17b39df5 100644
--- a/src/renderer/plugins/status-bar-refresh.ts
+++ b/src/renderer/plugins/status-bar-refresh.ts
@@ -1,12 +1,10 @@
-import { Plugin } from '@fe/useful/plugin'
-import store from '@fe/store'
-import { useBus } from '@fe/useful/bus'
+import { Plugin } from '@fe/context/plugin'
+import store from '@fe/support/store'
+import { getAction } from '@fe/context/action'
 
 export default {
   name: 'status-bar-refresh',
   register: ctx => {
-    const bus = useBus()
-
     const updateMenu = (autoPreview: boolean) => {
       ctx.statusBar.updateMenu({
         id: 'status-bar-refresh-status',
@@ -21,7 +19,7 @@ export default {
         tips: '强制渲染',
         icon: 'sync-alt-solid',
         hidden: autoPreview,
-        onClick: () => bus.emit('view-rerender')
+        onClick: () => getAction('view.refresh')()
       })
     }
 
diff --git a/src/renderer/plugins/status-bar-repository-switch.ts b/src/renderer/plugins/status-bar-repository-switch.ts
index 6ed2d0de..972508eb 100644
--- a/src/renderer/plugins/status-bar-repository-switch.ts
+++ b/src/renderer/plugins/status-bar-repository-switch.ts
@@ -1,9 +1,10 @@
-import { Plugin } from '@fe/useful/plugin'
-import { Menu as StatusBarMenu } from '@fe/useful/plugin/status-bar'
-import store from '@fe/store'
-import { useBus } from '@fe/useful/bus'
-import { $args } from '@fe/useful/global-args'
-import { basename } from '@fe/useful/path'
+import { Plugin } from '@fe/context/plugin'
+import { Menu as StatusBarMenu } from '@fe/context/status-bar'
+import store from '@fe/support/store'
+import { useBus } from '@fe/support/bus'
+import { $args } from '@fe/support/global-args'
+import { basename } from '@fe/utils/path'
+import { switchDoc } from '@fe/context/document'
 
 export default {
   name: 'status-bar-repository-switch',
@@ -35,7 +36,7 @@ export default {
       }
 
       if (initFilePath) {
-        store.commit('setCurrentFile', { repo: currentRepo.name, name: basename(initFilePath), path: initFilePath })
+        switchDoc({ type: 'file', repo: currentRepo.name, name: basename(initFilePath), path: initFilePath })
       }
     }
 
@@ -66,8 +67,7 @@ export default {
 
     ctx.statusBar.updateMenu(menu)
 
-    bus.on('switch-repo-by-name', chooseRepoByName)
-    bus.on('editor-ready', initRepo)
+    bus.on('editor.ready', initRepo)
     store.dispatch('fetchRepositories')
 
     store.watch(() => store.state.repositories, updateMenu)
diff --git a/src/renderer/plugins/status-bar-setting.ts b/src/renderer/plugins/status-bar-setting.ts
index 5289935f..3681127d 100644
--- a/src/renderer/plugins/status-bar-setting.ts
+++ b/src/renderer/plugins/status-bar-setting.ts
@@ -1,11 +1,13 @@
-import store from '@fe/store'
-import { Plugin } from '@fe/useful/plugin'
+import store from '@fe/support/store'
+import { Plugin } from '@fe/context/plugin'
 
 export default {
   name: 'status-bar-setting',
   register: ctx => {
     const showSetting = () => store.commit('setShowSetting', true)
-    ctx.bus.on('show-setting', showSetting)
+
+    ctx.action.registerAction('status-bar.show-setting', showSetting)
+
     ctx.statusBar.updateMenu({
       id: 'status-bar-setting',
       position: 'left',
diff --git a/src/renderer/plugins/status-bar-tool.ts b/src/renderer/plugins/status-bar-tool.ts
index 5b04d54c..2bde7b32 100644
--- a/src/renderer/plugins/status-bar-tool.ts
+++ b/src/renderer/plugins/status-bar-tool.ts
@@ -1,4 +1,4 @@
-import { Plugin } from '@fe/useful/plugin'
+import { Plugin } from '@fe/context/plugin'
 
 export default {
   name: 'status-bar-tool',
diff --git a/src/renderer/plugins/status-bar-view.ts b/src/renderer/plugins/status-bar-view.ts
index 5f7e4e24..438635be 100644
--- a/src/renderer/plugins/status-bar-view.ts
+++ b/src/renderer/plugins/status-bar-view.ts
@@ -1,32 +1,31 @@
-import { Plugin } from '@fe/useful/plugin'
-import { useBus } from '@fe/useful/bus'
-import { Alt, getActionLabel, isAction } from '@fe/useful/shortcut'
-import { FLAG_DISABLE_XTERM } from '@fe/useful/global-args'
+import { Plugin } from '@fe/context/plugin'
+import { Alt, getActionLabel, isAction } from '@fe/context/shortcut'
+import { FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import { toggleSide, toggleView, toggleXterm } from '@fe/context/layout'
+import { toggleWrap } from '@fe/context/editor'
 
 export default {
   name: 'status-bar-view',
   register: ctx => {
-    const bus = useBus()
-
     const actions = {
       'toggle-side': {
         title: '切换侧栏',
-        action: () => bus.emit('toggle-side'),
+        action: toggleSide,
         shortcut: [Alt, 'e'],
       },
       'toggle-view': {
         title: '切换预览',
-        action: () => bus.emit('toggle-view'),
+        action: toggleView,
         shortcut: [Alt, 'v'],
       },
       'toggle-xterm': {
         title: '切换终端',
-        action: () => bus.emit('toggle-xterm'),
+        action: () => toggleXterm(),
         shortcut: [Alt, 't'],
       },
       'toggle-wrap': {
         title: '切换换行',
-        action: () => bus.emit('editor-toggle-wrap'),
+        action: toggleWrap,
         shortcut: [Alt, 'w'],
       },
     }
diff --git a/src/renderer/plugins/switch-todo.ts b/src/renderer/plugins/switch-todo.ts
index 3d7c127c..b428806a 100644
--- a/src/renderer/plugins/switch-todo.ts
+++ b/src/renderer/plugins/switch-todo.ts
@@ -1,13 +1,12 @@
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import { useBus } from '@fe/useful/bus'
 import dayjs from 'dayjs'
+import { getLine, replaceLine } from '@fe/context/editor'
+import { Plugin, Ctx } from '@fe/context/plugin'
 
 export default {
   name: 'switch-todo',
   register: (ctx: Ctx) => {
     ctx.registerHook('ON_VIEW_ELEMENT_CLICK', async (e: MouseEvent) => {
       const target = e.target as HTMLElement
-      const bus = useBus()
 
       const preventEvent = () => {
         e.preventDefault()
@@ -16,13 +15,13 @@ export default {
       }
 
       function switchTodo (line: number, checked: boolean) {
-        let lineText = ''
-        bus.emit('editor-get-line', { line, callback: (val: string) => { lineText = val } })
+        const lineText = getLine(line)
 
         const value = checked
           ? lineText.replace('[ ]', `[x] ~~${dayjs().format('YYYY-MM-DD HH:mm')}~~`)
           : lineText.replace(/(\[x\] ~~[\d-: ]+~~|\[x\])/, '[ ]')
-        bus.emit('editor-replace-line', { line, value })
+
+        replaceLine(line, value)
       }
 
       if (target.tagName === 'INPUT' && target.parentElement!.classList.contains('source-line')) {
diff --git a/src/renderer/plugins/table-cell-edit.ts b/src/renderer/plugins/table-cell-edit.ts
index 9b90c08b..3e313886 100644
--- a/src/renderer/plugins/table-cell-edit.ts
+++ b/src/renderer/plugins/table-cell-edit.ts
@@ -1,13 +1,13 @@
-import { useBus } from '@fe/useful/bus'
-import { useModal } from '@fe/useful/modal'
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import { hasCtrlCmd } from '@fe/useful/shortcut'
-import { useToast } from '@fe/useful/toast'
+import { useModal } from '@fe/support/modal'
+import { Plugin, Ctx } from '@fe/context/plugin'
+import { hasCtrlCmd } from '@fe/context/shortcut'
+import { getAction } from '@fe/context/action'
+import { useToast } from '@fe/support/toast'
+import { getLine, replaceLine } from '@fe/context/editor'
 
 const editTableCell = async (start: number, end: number, cellIndex: number, input: HTMLTextAreaElement | null) => {
   const toast = useToast()
   const modal = useModal()
-  const bus = useBus()
 
   if (end - start !== 1) {
     toast.show('warning', '暂只支持编辑单行文本')
@@ -52,8 +52,7 @@ const editTableCell = async (start: number, end: number, cellIndex: number, inpu
     return result
   }
 
-  let text = ''
-  bus.emit('editor-get-line', { line: start, callback: (val: string) => { text = val.trim() } })
+  const text = getLine(start).trim()
 
   const columns = escapedSplit(text)
   const cellText = columns[cellIndex].trim()
@@ -76,7 +75,7 @@ const editTableCell = async (start: number, end: number, cellIndex: number, inpu
       const ok = () => {
         if (input.value !== cellText) {
           resolve(input.value)
-          bus.emit('view-rerender')
+          getAction('view.refresh')()
         }
 
         cancel()
@@ -119,7 +118,7 @@ const editTableCell = async (start: number, end: number, cellIndex: number, inpu
   if (text.startsWith('|')) content = '| ' + content
   if (text.endsWith('|')) content += ' |'
 
-  bus.emit('editor-replace-line', { line: start, value: content })
+  replaceLine(start, content)
 }
 
 export default {
diff --git a/src/renderer/plugins/transform-img-out-link.ts b/src/renderer/plugins/transform-img-out-link.ts
index 29c25e23..69d0d3c7 100644
--- a/src/renderer/plugins/transform-img-out-link.ts
+++ b/src/renderer/plugins/transform-img-out-link.ts
@@ -1,15 +1,20 @@
 import mime from 'mime-types'
-import file from '@fe/useful/file'
-import { Plugin, Ctx } from '@fe/useful/plugin'
-import { CtrlCmd, getActionLabel, isAction, LeftClick, Shift } from '@fe/useful/shortcut'
-import { encodeMarkdownLink } from '@fe/useful/utils'
-import { useBus } from '@fe/useful/bus'
-import env from '@fe/useful/env'
-import { useToast } from '@fe/useful/toast'
-import store from '@fe/store'
+import * as api from '@fe/support/api'
+import { Plugin, Ctx } from '@fe/context/plugin'
+import { CtrlCmd, getActionLabel, isAction, LeftClick, Shift } from '@fe/context/shortcut'
+import { encodeMarkdownLink } from '@fe/utils'
+import env from '@fe/utils/env'
+import { useToast } from '@fe/support/toast'
+import store from '@fe/support/store'
+import { replaceValue } from '@fe/context/editor'
+import { refreshTree } from '@fe/context/tree'
 
 async function transformImgOutLink (img: HTMLImageElement) {
   const { currentFile } = store.state
+  if (!currentFile) {
+    return
+  }
+
   const { repo, path } = currentFile
 
   const transform = (ximg: HTMLImageElement): Promise<string> => {
@@ -21,7 +26,7 @@ async function transformImgOutLink (img: HTMLImageElement) {
       canvas.toBlob(async blob => {
         try {
           const imgFile = new File([blob!], 'file.png')
-          const { relativePath } = await file.upload(repo, path, imgFile)
+          const { relativePath } = await api.upload(repo, path, imgFile)
           resolve(relativePath)
         } catch (error) {
           reject(error)
@@ -38,7 +43,7 @@ async function transformImgOutLink (img: HTMLImageElement) {
     const res = await window.fetch(`api/proxy?url=${encodeURIComponent(img.src)}&headers=${img.getAttribute('headers') || ''}`)
     const blob = await res.blob()
     const imgFile = new File([blob!], 'file.' + mime.extension(res.headers.get('content-type')!))
-    const { relativePath } = await file.upload(repo, path, imgFile)
+    const { relativePath } = await api.upload(repo, path, imgFile)
     replacedLink = relativePath
   }
 
@@ -59,7 +64,6 @@ async function transformAll () {
   }
 
   const toast = useToast()
-  const bus = useBus()
 
   const result = []
   const imgList = refView.querySelectorAll('img')
@@ -72,8 +76,8 @@ async function transformAll () {
       result.push(data)
     }
   }
-  result.forEach(data => bus.emit('editor-replace-value', { search: data.oldLink, replace: data.replacedLink }))
-  bus.emit('tree-refresh')
+  result.forEach(data => replaceValue(data.oldLink, data.replacedLink))
+  refreshTree()
 }
 
 async function handleKeydown (e: KeyboardEvent) {
@@ -85,7 +89,6 @@ async function handleKeydown (e: KeyboardEvent) {
 }
 
 async function handleClick (e: MouseEvent) {
-  const bus = useBus()
   const target = e.target as HTMLElement
   if (target.tagName !== 'IMG') {
     return false
@@ -95,8 +98,8 @@ async function handleClick (e: MouseEvent) {
   if (isAction(e, actionClick)) { // 转换外链图片到本地
     const data = await transformImgOutLink(img)
     if (data) {
-      bus.emit('tree-refresh')
-      bus.emit('editor-replace-value', { search: data.oldLink, replace: data.replacedLink })
+      refreshTree()
+      replaceValue(data.oldLink, data.replacedLink)
     }
   } else {
     env.openAlwaysOnTopWindow(img.src)
@@ -115,7 +118,7 @@ export default {
     ctx.shortcut.addAction(actionClick, [CtrlCmd, Shift, LeftClick])
 
     ctx.registerHook('ON_VIEW_KEY_DOWN', handleKeydown)
-    ctx.registerHook('ON_VIEW_ELEMENT_CLICK', handleClick )
+    ctx.registerHook('ON_VIEW_ELEMENT_CLICK', handleClick)
     ctx.registerHook('ON_VIEW_RENDERED', ({ getViewDom }) => {
       refView = getViewDom()
     })
diff --git a/src/renderer/shims-vue.d.ts b/src/renderer/shims-vue.d.ts
index 8f783d69..45d11d17 100644
--- a/src/renderer/shims-vue.d.ts
+++ b/src/renderer/shims-vue.d.ts
@@ -4,6 +4,13 @@ declare module '*.vue' {
   export default component
 }
 
+declare interface Window {
+  ctx: any;
+  globalBus: any;
+  registerPlugin: any;
+  documentSaved: boolean;
+}
+
 declare module 'markdown-it-task-lists'
 declare module 'markdown-it-attrs'
 declare module 'markdown-it-multimd-table'
diff --git a/src/renderer/support/api.ts b/src/renderer/support/api.ts
new file mode 100644
index 00000000..e7843b00
--- /dev/null
+++ b/src/renderer/support/api.ts
@@ -0,0 +1,141 @@
+import { slugify } from 'transliteration'
+import { basename, relative, extname, join, dirname } from '@fe/utils/path'
+import { fileToBase64URL } from '@fe/utils'
+import env from '@fe/utils/env'
+import Crypto from '@fe/utils/crypto'
+import { Doc } from './types'
+import { FLAG_DEMO } from './global-args'
+
+async function fetchHttp (input: RequestInfo, init?: RequestInit) {
+  const response = await fetch(input, init)
+  const result = await response.json()
+  if (result.status !== 'ok') {
+    throw new Error(result.message)
+  }
+
+  return result
+}
+
+async function fetchHelpContent (doc: string) {
+  const result = await fetchHttp('/api/help?doc=' + doc)
+  return { content: result.data.content, hash: '' }
+}
+
+export async function readFile ({ path, repo }: Pick<Doc, 'path' | 'repo'>) {
+  if (repo === '__help__') {
+    return await fetchHelpContent(path)
+  }
+
+  const result = await fetchHttp(`/api/file?path=${encodeURIComponent(path)}&repo=${encodeURIComponent(repo)}`)
+  const hash = result.data.hash
+  const content = result.data.content
+
+  return { content, hash }
+}
+
+export async function writeFile ({ repo, path, contentHash }: Doc, content: string) {
+  const result = await fetchHttp('/api/file', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ repo, path, content, old_hash: contentHash })
+  })
+
+  return { hash: result.data }
+}
+
+export async function moveFile ({ repo, path }: Doc, newPath: string) {
+  return fetchHttp('/api/file', {
+    method: 'PATCH',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ repo: repo, oldPath: path, newPath })
+  })
+}
+
+export async function deleteFile ({ path, repo }: Doc) {
+  return fetchHttp(`/api/file?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'DELETE' })
+}
+
+export async function markFile ({ path, repo }: Doc) {
+  return fetchHttp(`/api/mark?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'POST' })
+}
+
+export async function unmarkFile ({ path, repo }: Doc) {
+  return fetchHttp(`/api/mark?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'DELETE' })
+}
+
+export async function fetchMarkedFiles () {
+  const { data } = await fetchHttp('/api/mark')
+  return data
+}
+
+export async function fetchTree (repo: string) {
+  const result = await fetchHttp(`/api/tree?repo=${repo}`)
+  return result.data
+}
+
+export async function fetchRepositories () {
+  const result = await fetchHttp('/api/repositories')
+  return result.data
+}
+
+export async function fetchSettings () {
+  const result = await fetchHttp('/api/settings')
+  return result.data
+}
+
+export async function writeSettings (body: any) {
+  return fetchHttp('/api/settings', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body)
+  })
+}
+
+export async function choosePath (args: any) {
+  const from = env.isElectron ? 'electron' : 'browser'
+  const result = await fetchHttp(`/api/choose?from=${from}`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(args)
+  })
+  return result.data
+}
+
+export async function search (repo: string, text: string) {
+  const result = await fetchHttp(`/api/search?repo=${repo}&search=${encodeURIComponent(text)}`)
+  return result.data
+}
+
+export async function upload (repo: string, belongPath: string, uploadFile: any, name: string | null = null) {
+  if (FLAG_DEMO) {
+    return Promise.resolve({
+      repo,
+      path: belongPath,
+      relativePath: URL.createObjectURL(uploadFile)
+    })
+  }
+
+  const fileBase64Url = await fileToBase64URL(uploadFile)
+  const filename = name || Crypto.binMd5(fileBase64Url).substr(0, 8) + extname(uploadFile.name)
+
+  const formData = new FormData()
+  const dirName = slugify(basename(belongPath))
+  const parentPath = dirname(belongPath)
+  const path: string = join(
+    parentPath,
+    'FILES',
+    dirName.startsWith('.') ? 'upload' : dirName, filename
+  )
+  formData.append('repo', repo)
+  formData.append('path', path)
+  formData.append('attachment', fileBase64Url)
+
+  await fetchHttp('/api/attachment', { method: 'POST', body: formData })
+
+  const relativePath: string = relative(parentPath, path)
+  return { repo, path, relativePath }
+}
+
+export async function openInOS ({ repo, path }: Doc) {
+  return fetchHttp(`/api/open?repo=${encodeURIComponent(repo)}&path=${encodeURIComponent(path)}`)
+}
diff --git a/src/renderer/useful/bus.ts b/src/renderer/support/bus.ts
similarity index 94%
rename from src/renderer/useful/bus.ts
rename to src/renderer/support/bus.ts
index dc295bfd..08c5f65b 100644
--- a/src/renderer/useful/bus.ts
+++ b/src/renderer/support/bus.ts
@@ -25,5 +25,5 @@ export function useBus () {
 }
 
 export default function install () {
-  (window as any).globalBus = emitter
+  window.globalBus = emitter
 }
diff --git a/src/renderer/useful/context-menu.ts b/src/renderer/support/context-menu.ts
similarity index 92%
rename from src/renderer/useful/context-menu.ts
rename to src/renderer/support/context-menu.ts
index d721b081..0bf5b9d1 100644
--- a/src/renderer/useful/context-menu.ts
+++ b/src/renderer/support/context-menu.ts
@@ -1,5 +1,5 @@
 import { App, ComponentPublicInstance, createApp } from 'vue'
-import { Components } from '@fe/types'
+import { Components } from '@fe/support/types'
 import Modal from '@fe/components/ContextMenu.vue'
 
 interface Instance extends ComponentPublicInstance {
diff --git a/src/renderer/useful/copy-text.ts b/src/renderer/support/copy-text.ts
similarity index 92%
rename from src/renderer/useful/copy-text.ts
rename to src/renderer/support/copy-text.ts
index e3a26bc9..909595af 100644
--- a/src/renderer/useful/copy-text.ts
+++ b/src/renderer/support/copy-text.ts
@@ -1,4 +1,4 @@
-import { useToast } from '@fe/useful/toast'
+import { useToast } from '@fe/support/toast'
 
 export function copyText (text?: string) {
   if (text === undefined) {
diff --git a/src/renderer/demo.ts b/src/renderer/support/demo.ts
similarity index 96%
rename from src/renderer/demo.ts
rename to src/renderer/support/demo.ts
index fd6af0b3..2da9462b 100644
--- a/src/renderer/demo.ts
+++ b/src/renderer/support/demo.ts
@@ -1,6 +1,5 @@
-import { FLAG_DEMO } from './useful/global-args'
-import { useToast } from './useful/toast'
-import file from './useful/file'
+import { FLAG_DEMO } from './global-args'
+import { useToast } from './toast'
 
 if (FLAG_DEMO) {
   localStorage.clear()
@@ -8,12 +7,6 @@ if (FLAG_DEMO) {
   const xFetch = window.fetch
   const cache: {[key: string]: string} = {}
 
-  file.upload = (repo, path, fileData: File) => Promise.resolve({
-    repo,
-    path,
-    relativePath: URL.createObjectURL(fileData)
-  })
-
   window.addEventListener('click', e => {
     const target = e.target as HTMLElement
     if (target.parentElement?.tagName === 'FORM' && target.innerText.includes('docx')) {
@@ -49,6 +42,10 @@ if (FLAG_DEMO) {
       const url = new URL(location.origin + uri)
       const method = (init && init.method) || 'GET'
 
+      if (uri.startsWith('/api/mark')) {
+        return Promise.resolve({ status: 'ok', message: '操作成功', data: {} })
+      }
+
       if (uri.startsWith('/api/repositories')) {
         return Promise.resolve({ status: 'ok', message: '获取成功', data: { test: '/test' } })
       }
diff --git a/src/renderer/useful/extensions.ts b/src/renderer/support/extensions.ts
similarity index 97%
rename from src/renderer/useful/extensions.ts
rename to src/renderer/support/extensions.ts
index 4af42fbc..03ea8dbf 100644
--- a/src/renderer/useful/extensions.ts
+++ b/src/renderer/support/extensions.ts
@@ -1,4 +1,4 @@
-import { extname } from './path'
+import { extname } from '@fe/utils/path'
 const extensions = [
   '.txt',
   '.gitignore',
diff --git a/src/renderer/useful/global-args.ts b/src/renderer/support/global-args.ts
similarity index 100%
rename from src/renderer/useful/global-args.ts
rename to src/renderer/support/global-args.ts
diff --git a/src/renderer/useful/modal.ts b/src/renderer/support/modal.ts
similarity index 93%
rename from src/renderer/useful/modal.ts
rename to src/renderer/support/modal.ts
index 3e05d637..7e2e15db 100644
--- a/src/renderer/useful/modal.ts
+++ b/src/renderer/support/modal.ts
@@ -1,5 +1,5 @@
 import { App, ComponentPublicInstance, createApp } from 'vue'
-import { Components } from '@fe/types'
+import { Components } from '@fe/support/types'
 import Modal from '@fe/components/ModalUi.vue'
 
 interface Instance extends ComponentPublicInstance {
diff --git a/src/renderer/store.ts b/src/renderer/support/store.ts
similarity index 65%
rename from src/renderer/store.ts
rename to src/renderer/support/store.ts
index 8f43f7e0..03948ec5 100644
--- a/src/renderer/store.ts
+++ b/src/renderer/support/store.ts
@@ -1,16 +1,16 @@
+import { omit } from 'lodash-es'
 import { createStore } from 'vuex'
-import Storage from '@fe/useful/storage'
-import file from '@fe/useful/file'
-import { basename } from '@fe/useful/path'
+import Storage from '@fe/utils/storage'
+import { basename } from '@fe/utils/path'
+import * as api from '@fe/support/api'
+import { Doc } from './types'
 
-/**
- * 获取上一次打开的文件
- * @param repoName 仓库名称
- */
-const getLastOpenFile = (repoName?: string) => {
+export const getLastOpenFile = (repoName?: string) => {
   const currentFile = Storage.get('currentFile')
   const recentOpenTime = Storage.get('recentOpenTime', {}) as {[key: string]: number}
 
+  repoName ??= Storage.get('currentRepo')?.name
+
   if (!repoName) {
     return null
   }
@@ -44,15 +44,11 @@ export default createStore({
     showXterm: false,
     autoPreview: true,
     showSetting: false,
-    savedAt: null,
     currentContent: '',
-    previousContent: '',
-    previousHash: '',
     currentRepo: Storage.get('currentRepo'),
-    currentFile: getLastOpenFile(Storage.get('currentRepo')?.name),
+    currentFile: null as Doc | null,
     recentOpenTime: Storage.get('recentOpenTime', {}),
     tabs: Storage.get('tabs', []),
-    passwordHash: {},
     documentInfo: {
       textLength: 0,
       selectedLength: 0,
@@ -66,11 +62,6 @@ export default createStore({
     setMarkedFiles (state, files) {
       state.markedFiles = files
     },
-    setPasswordHash (state, { file, passwordHash }) {
-      if (file && passwordHash) {
-        state.passwordHash = { ...state.passwordHash, [`${file.repo}|${file.path}`]: passwordHash }
-      }
-    },
     setRepositories (state, data) {
       state.repositories = data
     },
@@ -98,15 +89,6 @@ export default createStore({
     setShowXterm (state, data) {
       state.showXterm = data
     },
-    setPreviousHash (state, data) {
-      state.previousHash = data
-    },
-    setPreviousContent (state, data) {
-      state.previousContent = data
-    },
-    setSavedAt (state, data) {
-      state.savedAt = data
-    },
     setDocumentInfo (state, data) {
       state.documentInfo = data
     },
@@ -115,13 +97,13 @@ export default createStore({
     },
     setCurrentRepo (state, data) {
       state.currentRepo = data
-      state.currentFile = getLastOpenFile(data?.name)
       state.tree = null
       Storage.set('currentRepo', data)
     },
-    setCurrentFile (state, data) {
+    setCurrentFile (state, data: Doc | null) {
       state.currentFile = data
-      Storage.set('currentFile', data)
+
+      Storage.set('currentFile', omit(data, 'content'))
 
       if (data) {
         state.recentOpenTime = { ...(state.recentOpenTime || {}), [`${data.repo}|${data.path}`]: new Date().valueOf() }
@@ -130,34 +112,32 @@ export default createStore({
     },
   },
   getters: {
+    isSaved (state) {
+      if (!state.currentFile?.status) {
+        return true
+      }
+
+      return state.currentContent === state.currentFile?.content
+    }
   },
   actions: {
     async fetchMarkedFiles ({ commit }) {
-      const files = (await file.markedFiles()).map((x: any) => ({ ...x, name: basename(x.path) }))
+      const files = (await api.fetchMarkedFiles()).map((x: any) => ({ ...x, name: basename(x.path) }))
       commit('setMarkedFiles', files)
     },
     async fetchRepositories ({ commit }) {
-      const repos = await file.fetchRepositories()
+      const repos = await api.fetchRepositories()
       commit('setRepositories', repos)
     },
-    async fetchTree ({ commit }, repo) {
+    async fetchTree ({ commit, state }) {
+      const repo = state.currentRepo
       if (!repo) {
         console.warn('未选择仓库')
         return
       }
 
-      const tree = await file.fetchTree(repo.name)
+      const tree = await api.fetchTree(repo.name)
       commit('setTree', tree)
     },
-    async showHelp ({ commit }, doc) {
-      const content = await file.fetchHelpContent(doc)
-      commit('setCurrentFile', {
-        repo: '__help__',
-        title: doc,
-        name: doc,
-        path: '/' + doc,
-        content
-      })
-    },
   }
 })
diff --git a/src/renderer/useful/toast.ts b/src/renderer/support/toast.ts
similarity index 92%
rename from src/renderer/useful/toast.ts
rename to src/renderer/support/toast.ts
index 18328a67..c4679071 100644
--- a/src/renderer/useful/toast.ts
+++ b/src/renderer/support/toast.ts
@@ -1,6 +1,6 @@
 import { App, ComponentPublicInstance, createApp } from 'vue'
 import Toast from '@fe/components/Toast.vue'
-import { Components } from '@fe/types'
+import { Components } from '@fe/support/types'
 
 interface ToastInstance extends ComponentPublicInstance {
   show: (type: Components.Toast.ToastType, content: string, timeout?: number) => void;
diff --git a/src/renderer/types.ts b/src/renderer/support/types.ts
similarity index 80%
rename from src/renderer/types.ts
rename to src/renderer/support/types.ts
index d7ed238b..e2f81903 100644
--- a/src/renderer/types.ts
+++ b/src/renderer/support/types.ts
@@ -1,3 +1,15 @@
+export interface Doc {
+  type: 'file' | 'dir';
+  name: string;
+  repo: string;
+  path: string;
+  content?: string;
+  title?: string;
+  passwordHash?: string;
+  contentHash?: string;
+  status?: 'loaded' | 'save-failed' | 'saved';
+}
+
 export namespace Components {
   export namespace Modal {
     export type ConfirmModalParams = { title?: string; content?: string }
@@ -43,7 +55,7 @@ export namespace Components {
   export namespace FileTabs {
     export interface Item extends Tabs.Item {
       payload: {
-        file: any; // TODO 文件类型
+        file: Doc | null;
       };
     }
   }
diff --git a/src/renderer/useful/file.ts b/src/renderer/useful/file.ts
deleted file mode 100644
index 8583487f..00000000
--- a/src/renderer/useful/file.ts
+++ /dev/null
@@ -1,202 +0,0 @@
-import Crypto from './crypto'
-import { slugify } from 'transliteration'
-import env from './env'
-import { basename, relative, extname, join, dirname } from './path'
-
-// TODO 文件类型
-type F = { repo: string; path: string };
-
-const fetchHttp = async (input: RequestInfo, init?: RequestInit) => {
-  const response = await fetch(input, init)
-  const result = await response.json()
-  if (result.status !== 'ok') {
-    throw new Error(result.message)
-  }
-
-  return result
-}
-
-const isEncryptedFile = (file: any) => {
-  return file && file.path.endsWith('.c.md')
-}
-
-const isSameFile = (a?: F | null, b?: F | null) => {
-  return a && b && a.repo === b.repo && a.path === b.path
-}
-
-const toUri = (file?: F | null) => {
-  if (file && file.repo && file.path) {
-    return encodeURI(`yank-note://${file.repo}/${file.path.replace(/^\//, '')}`)
-  } else {
-    return 'yank-note://system/blank.md'
-  }
-}
-
-const decrypt = (content: any, password: string) => {
-  if (!password) {
-    throw new Error('未输入解密密码')
-  }
-
-  return Crypto.decrypt(content, password)
-}
-
-const encrypt = (content: any, password: string) => {
-  if (!password) {
-    throw new Error('未输入解密密码')
-  }
-
-  return Crypto.encrypt(content, password)
-}
-
-const read = async ({ path, repo }: F) => {
-  const result = await fetchHttp(`/api/file?path=${encodeURIComponent(path)}&repo=${encodeURIComponent(repo)}`)
-  const hash = result.data.hash
-  const content = result.data.content
-
-  return { content, hash }
-}
-
-const write = async ({ repo, path }: F, content: any, oldHash: string) => {
-  const result = await fetchHttp('/api/file', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ repo, path, content, old_hash: oldHash })
-  })
-
-  return { hash: result.data }
-}
-
-const move = async ({ repo, path }: F, newPath: string) => {
-  return fetchHttp('/api/file', {
-    method: 'PATCH',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ repo: repo, oldPath: path, newPath })
-  })
-}
-
-const deleteFile = async ({ path, repo }: F) => {
-  return fetchHttp(`/api/file?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'DELETE' })
-}
-
-const mark = async ({ path, repo }: F) => {
-  return fetchHttp(`/api/mark?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'POST' })
-}
-
-const unmark = async ({ path, repo }: F) => {
-  return fetchHttp(`/api/mark?path=${encodeURIComponent(path)}&repo=${repo}`, { method: 'DELETE' })
-}
-
-const markedFiles = async () => {
-  const { data } = await fetchHttp('/api/mark')
-  return data
-}
-
-const fetchTree = async (repo: string) => {
-  const result = await fetchHttp(`/api/tree?repo=${repo}`)
-  return result.data
-}
-
-const fetchHelpContent = async (doc: string) => {
-  const result = await fetchHttp('/api/help?doc=' + doc)
-  return result.data.content
-}
-
-const fetchRepositories = async () => {
-  const result = await fetchHttp('/api/repositories')
-  return result.data
-}
-
-const fetchSettings = async () => {
-  const result = await fetchHttp('/api/settings')
-  return result.data
-}
-
-const writeSettings = (body: any) => {
-  return fetchHttp('/api/settings', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(body)
-  })
-}
-
-const choosePath = async (args: any) => {
-  const from = env.isElectron ? 'electron' : 'browser'
-  const result = await fetchHttp(`/api/choose?from=${from}`, {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(args)
-  })
-  return result.data
-}
-
-const search = async (repo: string, text: string) => {
-  const result = await fetchHttp(`/api/search?repo=${repo}&search=${encodeURIComponent(text)}`)
-  return result.data
-}
-
-const upload = async (repo: string, belongPath: string, uploadFile: any, name: string | null = null): Promise<{repo: string; path: string; relativePath: string}> => {
-  return new Promise((resolve, reject) => {
-    const fr = new FileReader()
-    fr.readAsDataURL(uploadFile)
-    fr.onloadend = async () => {
-      try {
-        const filename = name || Crypto.binMd5(fr.result).substr(0, 8) + extname(uploadFile.name)
-
-        const formData = new FormData()
-        const dirName = slugify(basename(belongPath))
-        const parentPath = dirname(belongPath)
-        const path = join(
-          parentPath,
-          'FILES',
-          dirName.startsWith('.') ? 'upload' : dirName, filename
-        )
-        formData.append('repo', repo)
-        formData.append('path', path)
-        formData.append('attachment', fr.result as string)
-
-        await fetchHttp('/api/attachment', { method: 'POST', body: formData })
-
-        const relativePath = relative(parentPath, path)
-        resolve({ repo, path, relativePath })
-      } catch (error) {
-        reject(error)
-      }
-    }
-  })
-}
-
-const openInOS = async ({ repo, path }: F) => {
-  return fetchHttp(`/api/open?repo=${encodeURIComponent(repo)}&path=${encodeURIComponent(path)}`)
-}
-
-const toBase64URL = async (file: any) => new Promise((resolve, reject) => {
-  const fr = new FileReader()
-  fr.readAsDataURL(file)
-  fr.onload = () => resolve(fr.result)
-  fr.onerror = error => reject(error)
-})
-
-export default {
-  isSameFile,
-  isEncryptedFile,
-  toUri,
-  decrypt,
-  encrypt,
-  read,
-  write,
-  move,
-  delete: deleteFile,
-  fetchTree,
-  fetchRepositories,
-  fetchHelpContent,
-  fetchSettings,
-  writeSettings,
-  choosePath,
-  openInOS,
-  search,
-  upload,
-  mark,
-  unmark,
-  markedFiles,
-  toBase64URL,
-}
diff --git a/src/renderer/useful/plugin/index.ts b/src/renderer/useful/plugin/index.ts
deleted file mode 100644
index 16088915..00000000
--- a/src/renderer/useful/plugin/index.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-import * as shortcut from '@fe/useful/shortcut'
-import { getLogger } from '@fe/useful/utils'
-import { useBus } from '@fe/useful/bus'
-import { useToast } from '@fe/useful/toast'
-import buildInPlugins from './build-in'
-import store from '@fe/store'
-import * as tree from './tree'
-import * as statusBar from './status-bar'
-import * as view from './view'
-import * as markdown from './markdown'
-
-export type HookType = 'ON_STARTUP' | tree.HookType | view.HookType
-
-export type HookFun = (...args: any[]) => boolean | void | Promise<boolean | void>
-
-const logger = getLogger('plugin')
-const bus = useBus()
-
-const hooks: { [key in HookType]?: {fun: HookFun; once: boolean}[] } = {}
-
-const ctx = {
-  bus,
-  store,
-  shortcut,
-  ui: {
-    useToast,
-  },
-  registerHook: (type: HookType, fun: HookFun, once = false) => {
-    if (Array.isArray(hooks[type])) {
-      hooks[type] = [...hooks[type]!, { fun, once }]
-    } else {
-      hooks[type] = [{ fun, once }]
-    }
-  },
-  removeHook: (type: HookType, fun: HookFun) => {
-    if (Array.isArray(hooks[type])) {
-      hooks[type] = hooks[type]!.filter(x => x.fun !== fun)
-    }
-  },
-  triggerHook: async (type: HookType, ...args: any[]) => {
-    logger.debug('triggerHook', type, args)
-    for (const { fun, once } of (hooks[type] || [])) {
-      once && ctx.removeHook(type, fun)
-      if (await fun(...args)) {
-        return true
-      }
-    }
-
-    return false
-  },
-  tree: tree.ctx,
-  markdown: markdown.ctx,
-  statusBar: statusBar.ctx
-}
-
-export type Ctx = typeof ctx;
-
-export interface Plugin {
-  name: string;
-  register?: (ctx: Ctx) => void;
-}
-
-const plugins: {[name: string]: Plugin} = {}
-export const register = (plugin: Plugin) => {
-  logger.debug('register', plugin)
-  plugins[plugin.name] = plugin
-  plugin.register && plugin.register(ctx)
-}
-
-export const init = () => {
-  logger.debug('init')
-
-  buildInPlugins.forEach((plugin) => {
-    register(plugin)
-  })
-
-  ;(window as any).registerPlugin = register
-
-  const script = window.document.createElement('script')
-  script.src = '/api/plugins'
-  window.document.body.appendChild(script)
-}
-
-export const triggerHook = ctx.triggerHook
-
-init()
diff --git a/src/renderer/useful/plugin/markdown.ts b/src/renderer/useful/plugin/markdown.ts
deleted file mode 100644
index ff2da6d0..00000000
--- a/src/renderer/useful/plugin/markdown.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import Markdown from 'markdown-it'
-
-const markdownItPlugins: {plugin: any; params: any}[] = []
-
-export const getPlugins = () => markdownItPlugins
-
-export const ctx = {
-  registerPlugin: (plugin: (md: Markdown, ...args: any) => void, params?: any) => {
-    markdownItPlugins.push({ plugin, params })
-  }
-}
diff --git a/src/renderer/useful/plugin/tree.ts b/src/renderer/useful/plugin/tree.ts
deleted file mode 100644
index 82550d73..00000000
--- a/src/renderer/useful/plugin/tree.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import { Components } from '@fe/types'
-
-export type HookType = 'ON_TREE_NODE_SELECT'
-
-type MenuItem = Components.ContextMenu.Item
-
-type BuildContextMenu = (items: MenuItem[], node: any) => MenuItem[]
-
-const contextMenuFunList: BuildContextMenu[] = []
-
-export const registerContextMenu = (fun: BuildContextMenu) => {
-  contextMenuFunList.push(fun)
-}
-
-export const getContextMenuItems = (node: any) => {
-  return contextMenuFunList.reduce((items, fun) => fun(items, node), [] as MenuItem[])
-}
-
-export const ctx = {
-  registerContextMenu
-}
diff --git a/src/renderer/useful/crypto.ts b/src/renderer/utils/crypto.ts
similarity index 100%
rename from src/renderer/useful/crypto.ts
rename to src/renderer/utils/crypto.ts
diff --git a/src/renderer/useful/env.ts b/src/renderer/utils/env.ts
similarity index 100%
rename from src/renderer/useful/env.ts
rename to src/renderer/utils/env.ts
diff --git a/src/renderer/useful/fuzzy-match.ts b/src/renderer/utils/fuzzy-match.ts
similarity index 100%
rename from src/renderer/useful/fuzzy-match.ts
rename to src/renderer/utils/fuzzy-match.ts
diff --git a/src/renderer/useful/utils.ts b/src/renderer/utils/index.ts
similarity index 85%
rename from src/renderer/useful/utils.ts
rename to src/renderer/utils/index.ts
index 447dc385..e4853bb6 100644
--- a/src/renderer/useful/utils.ts
+++ b/src/renderer/utils/index.ts
@@ -1,4 +1,4 @@
-import env from '@fe/useful/env'
+import env from './env'
 
 export const encodeMarkdownLink = (path: string) => {
   return path
@@ -45,6 +45,15 @@ export const dataURItoBlobLink = (dataURI: string) => {
   return window.URL.createObjectURL(blob)
 }
 
+export function fileToBase64URL (file: File) {
+  return new Promise<string>((resolve, reject) => {
+    const fr = new FileReader()
+    fr.readAsDataURL(file)
+    fr.onload = () => resolve(fr.result as string)
+    fr.onerror = error => reject(error)
+  })
+}
+
 export const getLogger = (subject: string) => {
   const logger = (level: string) => (...args: any) => {
     const time = `${new Date().toLocaleString()}.${Date.now() % 1000}`
diff --git a/src/renderer/useful/path.ts b/src/renderer/utils/path.ts
similarity index 100%
rename from src/renderer/useful/path.ts
rename to src/renderer/utils/path.ts
diff --git a/src/renderer/useful/storage.ts b/src/renderer/utils/storage.ts
similarity index 100%
rename from src/renderer/useful/storage.ts
rename to src/renderer/utils/storage.ts
diff --git a/src/renderer/views/Main.vue b/src/renderer/views/Main.vue
index 0b3f7c17..ae5ba2b2 100644
--- a/src/renderer/views/Main.vue
+++ b/src/renderer/views/Main.vue
@@ -28,8 +28,8 @@
 
 <script lang="ts">
 import { defineComponent, onMounted, ref } from 'vue'
-import startup from '@fe/useful/startup'
-import { FLAG_DISABLE_XTERM } from '@fe/useful/global-args'
+import startup from '@fe/context/startup'
+import { FLAG_DISABLE_XTERM } from '@fe/support/global-args'
 import Layout from '@fe/components/Layout.vue'
 import TitleBar from '@fe/components/TitleBar.vue'
 import StatusBar from '@fe/components/StatusBar.vue'
diff --git a/tsconfig.json b/tsconfig.json
index 8c62fd1c..28afadcc 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,9 +11,9 @@
     "lib": ["esnext", "dom", "dom.iterable"],
     "baseUrl": ".",
     "paths": {
-      "@/*": ["src/*"],
       "@fe/*": ["src/renderer/*"],
-      "@main/*": ["src/main/*"]
+      "@main/*": ["src/main/*"],
+      "@/*": ["src/*"]
     },
   },
   "include": ["src/**/*.ts", "src/**/*.d.ts", "src/**/*.tsx", "src/**/*.vue"]
diff --git a/yarn.lock b/yarn.lock
index e3abe675..83d432a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5927,6 +5927,11 @@ util@^0.11.0:
   dependencies:
     inherits "2.0.3"
 
+utility-types@^3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/utility-types/-/utility-types-3.10.0.tgz#ea4148f9a741015f05ed74fd615e1d20e6bed82b"
+  integrity sha512-O11mqxmi7wMKCo6HKFt5AhO4BwY3VV68YU07tgxfz8zJTIxr4BpsezN49Ffwy9j3ZpwwJp4fkRwjRzq3uWE6Rg==
+
 uuid@^3.3.2:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.4.0.tgz#b23e4358afa8a202fe7a100af1f5f883f02007ee"