Merge pull request #3726 from BoostIO/update-readme

Update readme

.babelrc

@@ -1,20 +1,14 @@
 {
-  "stage": 0,
+  "presets": ["react", "es2015"],
   "env": {
     "development": {
-      "plugins": ["react-transform"],
-      "extra": {
-        "react-transform": {
-          "transforms": [{
-            "transform": "react-transform-hmr",
-            "imports": ["react"],
-            "locals": ["module"]
-          }, {
-            "transform": "react-transform-catch-errors",
-            "imports": ["react", "redbox-react"]
-          }]
-        }
-      }
+      "presets": ["react-hmre"]
+    },
+    "test": {
+      "presets": ["env" ,"react", "es2015"],
+      "plugins": [
+        [ "babel-plugin-webpack-alias", { "config": "<rootDir>/webpack.config.js" } ]
+      ]
     }
   }
 }

.boostnoterc.sample

@@ -0,0 +1,35 @@
+{
+    "amaEnabled": true,
+    "editor": {
+        "fontFamily": "Monaco, Consolas",
+        "fontSize": "14",
+        "indentSize": "2",
+        "indentType": "space",
+        "keyMap": "vim",
+        "switchPreview": "BLUR",
+        "theme": "monokai"
+    },
+    "hotkey": {
+        "toggleMain": "Cmd + Alt + L"
+    },
+    "isSideNavFolded": false,
+    "listStyle": "DEFAULT",
+    "listWidth": 174,
+    "navWidth": 200,
+    "preview": {
+        "codeBlockTheme": "dracula",
+        "fontFamily": "Lato",
+        "fontSize": "14",
+        "lineNumber": true
+    },
+    "sortBy": {
+        "default": "UPDATED_AT"
+    },
+    "sortTagsBy": "ALPHABETICAL",
+    "ui": {
+        "defaultNote": "ALWAYS_ASK",
+        "disableDirectWrite": false,
+        "theme": "default"
+    },
+    "zoom": 1
+}

.editorconfig

@@ -0,0 +1,16 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Space indentation
+[*]
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+
+# The indent size used in the `package.json` file cannot be changed
+# https://github.com/npm/npm/pull/3180#issuecomment-16336516
+[{*.yml,*.yaml,package.json}]
+indent_style = space
+indent_size = 2

.eslintignore

@@ -0,0 +1,4 @@
+node_modules/
+compiled/
+dist/
+extra_scripts/

.eslintrc

@@ -0,0 +1,29 @@
+{
+  "extends": ["standard", "standard-jsx", "plugin:react/recommended", "prettier"],
+  "plugins": ["react", "prettier"],
+  "rules": {
+    "no-useless-escape": 0,
+    "prefer-const": ["warn", {
+      "destructuring": "all"
+    }],
+    "no-unused-vars": "warn",
+    "no-undef": "warn",
+    "no-lone-blocks": "warn",
+    "react/prop-types": 0,
+    "react/no-string-refs": 0,
+    "react/no-find-dom-node": "warn",
+    "react/no-render-return-value": "warn",
+    "react/no-deprecated": "warn",
+    "prettier/prettier": ["error"]
+  },
+  "globals": {
+    "FileReader": true,
+    "localStorage": true,
+    "fetch": true,
+    "Image": true,
+    "MutationObserver": true
+  },
+  "env": {
+    "jest": true
+  }
+}

.github/FUNDING.yml

@@ -0,0 +1 @@
+issuehunt: BoostIo/Boostnote

.gitignore

@@ -1,6 +1,14 @@
+.DS_Store
 .env
+Desktop.ini
+Thumbs.db
 node_modules/*
 !node_modules/boost
-Boost-darwin-x64/
-backup/
-compiled
+/dist
+/compiled
+/secret
+*.log
+.idea
+.vscode
+package-lock.json
+config.json

.gitmodules

@@ -1,4 +0,0 @@
-[submodule "submodules/ace"]
-	path = submodules/ace
-	url = https://github.com/ajaxorg/ace-builds.git
-	branch = master

.prettierrc

@@ -0,0 +1,5 @@
+{
+  "singleQuote": true,
+  "semi": false,
+  "jsxSingleQuote": true
+}

.travis.yml

@@ -0,0 +1,19 @@
+language: node_js
+node_js:
+  - 8
+script:
+  - npm run lint && npm run test
+  - 'if [[ ${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH} = "master" ]]; then npm install -g grunt npm@6.4 && grunt pre-build; fi'
+after_success:
+  - openssl aes-256-cbc -K $encrypted_440d7f9a3c38_key -iv $encrypted_440d7f9a3c38_iv
+    -in .snapcraft/travis_snapcraft.cfg -out .snapcraft/snapcraft.cfg -d
+sudo: required
+services:
+  - docker
+deploy:
+  'on':
+    branch: master
+  provider: script
+  script: if [ ${TRAVIS_NODE_VERSION} = "stable" ];then docker run -v $(pwd):$(pwd) -t snapcore/snapcraft sh -c "apt update -qq
+    && cd $(pwd) && snapcraft && snapcraft push *.snap --release edge"; fi
+  skip_cleanup: true

.vscode/launch.json

@@ -0,0 +1,41 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "BoostNote Main",
+      "protocol": "inspector",
+      "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron",
+      "runtimeArgs": [
+        "--remote-debugging-port=9223",
+        "--hot",
+        "${workspaceFolder}/index.js"
+      ],
+      "windows": {
+        "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron.cmd"
+      }
+    },
+    {
+      "type": "chrome",
+      "request": "attach",
+      "name": "BoostNote Renderer",
+      "port": 9223,
+      "webRoot": "${workspaceFolder}",
+      "sourceMapPathOverrides": {
+        "webpack:///./~/*": "${webRoot}/node_modules/*",
+        "webpack:///*": "${webRoot}/*"
+      }
+    }
+  ],
+  "compounds": [
+    {
+      "name": "BostNote All",
+      "configurations": ["BoostNote Main", "BoostNote Renderer"]
+    }
+  ]
+}

.vscode/tasks.json

@@ -0,0 +1,27 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Build Boostnote",
+      "group": "build",
+      "type": "npm",
+      "script": "watch",
+      "isBackground": true,
+      "presentation": {
+        "reveal": "always",
+      },
+      "problemMatcher": {
+        "pattern":[
+          {
+            "regexp": "^([^\\\\s].*)\\\\((\\\\d+,\\\\d+)\\\\):\\\\s*(.*)$",
+            "file": 1,
+            "location": 2,
+            "message": 3
+          }
+        ]
+      }
+    }
+  ]
+}

FAQ.md

@@ -0,0 +1,29 @@
+# Frequently Asked Questions
+
+
+<details><summary>Allowing dangerous HTML tags</summary>
+
+Sometimes it is useful to allow dangerous HTML tags to add interactivity to your notebook. One of the example is to use details/summary as a way to expand/collaps your todo-list.
+
+* How to enable:
+  * Go to **Preferences** → **Interface** → **Sanitization** → **Allow dangerous html tags**
+* Example note: Multiple todo-list
+  * Create new notes
+  * Paste the below code, and you'll see that you can expand/collaps the todo-list, and you can have multiple todo-list in your note.
+  
+```html
+<details><summary>What I want to do</summary>
+
+- [x] Create an awesome feature X
+- [ ] Do my homework
+
+</details>
+```
+
+</details>
+
+## Other questions
+
+You can ask [here][ISSUES]
+
+[ISSUES]: https://github.com/BoostIO/Boostnote/issues

ISSUE_TEMPLATE.md

@@ -0,0 +1,35 @@
+# Current behavior
+
+<!--
+Let us know what is currently happening.
+
+Please include some **screenshots** with the **developer tools** open (console tab) when you report a bug.
+
+If your issue is regarding the new Boost Note.next, please open an issue in the new repo 👉 https://github.com/BoostIO/BoostNote.next/issues.
+-->
+
+# Expected behavior
+
+<!--
+Let us know what you think should happen.
+-->
+
+# Steps to reproduce
+
+<!-- 
+Please be thorough, issues we can reproduce are easier to fix.
+-->
+
+1. 
+2. 
+3. 
+
+# Environment
+
+- Boostnote version: <!-- 0.x.x -->
+- OS version and name: <!-- Windows 10 / Ubuntu 18.04 / etc -->
+
+<!--
+Love Boostnote? Please consider supporting us on IssueHunt:
+👉  https://issuehunt.io/repos/53266139
+-->

LICENSE

@@ -0,0 +1,18 @@
+GPL-3.0
+
+Boostnote - an open source note-taking app made for programmers just like you.
+
+Copyright (C) 2017 - 2019 BoostIO
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,42 @@
+<!--
+Before submitting this PR, please make sure that:
+- You have read and understand the contributing.md
+- You have checked docs/code_style.md for information on code style
+-->
+
+## Description
+
+<!--
+Tell us what your PR does.
+Please attach a screenshot/ video/gif image describing your PR if possible.
+-->
+
+## Issue fixed
+
+<!--
+Please list out all issue fixed with this PR here.
+-->
+
+<!--
+Please make sure you fill in these checkboxes,
+your PR will be reviewed faster if we know exactly what it does.
+
+Change :white_circle: to :radio_button: in all the options that apply
+-->
+
+## Type of changes
+
+- :white_circle: Bug fix (Change that fixed an issue)
+- :white_circle: Breaking change (Change that can cause existing functionality to change)
+- :white_circle: Improvement (Change that improves the code. Maybe performance or development improvement)
+- :white_circle: Feature (Change that adds new functionality)
+- :white_circle: Documentation change (Change that modifies documentation. Maybe typo fixes)
+
+## Checklist:
+
+- :white_circle: My code follows [the project code style](docs/code_style.md)
+- :white_circle: I have written test for my code and it has been tested
+- :white_circle: All existing tests have been passed
+- :white_circle: I have attached a screenshot/video to visualize my change if possible
+- :white_circle: This PR will modify the UI or affects the UX
+- :white_circle: This PR will add/update/delete a keybinding

__mocks__/electron.js

@@ -0,0 +1,7 @@
+module.exports = {
+  require: jest.genMockFunction(),
+  match: jest.genMockFunction(),
+  app: jest.genMockFunction(),
+  remote: jest.genMockFunction(),
+  dialog: jest.genMockFunction()
+}

appdmg.json

@@ -0,0 +1,11 @@
+{
+  "title": "Boostnote",
+  "icon": "resources/dmg.icns",
+  "background": "resources/boostnote-install.png",
+  "icon-size": 80,
+  "contents": [
+    { "x": 448, "y": 344, "type": "link", "path": "/Applications" },
+    { "x": 192, "y": 344, "type": "file", "path": "dist/Boostnote-darwin-x64/Boostnote.app" }
+  ]
+
+}

atom-lib/finder-window.js

@@ -1,30 +0,0 @@
-const electron = require('electron')
-const BrowserWindow = electron.BrowserWindow
-const path = require('path')
-
-var finderWindow = new BrowserWindow({
-  width: 640,
-  height: 400,
-  show: false,
-  frame: false,
-  resizable: false,
-  'zoom-factor': 1.0,
-  'always-on-top': true,
-  'web-preferences': {
-    'overlay-scrollbars': true,
-    'skip-taskbar': true
-  },
-  'standard-window': false
-})
-
-var url = path.resolve(__dirname, '../browser/finder/index.html')
-
-finderWindow.loadURL('file://' + url)
-
-finderWindow.on('blur', function () {
-  finderWindow.hide()
-})
-
-finderWindow.setVisibleOnAllWorkspaces(true)
-
-module.exports = finderWindow

atom-lib/main-window.js

@@ -1,25 +0,0 @@
-const electron = require('electron')
-const BrowserWindow = electron.BrowserWindow
-const path = require('path')
-
-var mainWindow = new BrowserWindow({
-  width: 1080,
-  height: 720,
-  'zoom-factor': 1.0,
-  'web-preferences': {
-    'overlay-scrollbars': true
-  },
-  'standard-window': false
-})
-
-const url = path.resolve(__dirname, '../browser/main/index.html')
-
-mainWindow.loadURL('file://' + url)
-
-mainWindow.setVisibleOnAllWorkspaces(true)
-
-mainWindow.webContents.on('new-window', function (e) {
-  e.preventDefault()
-})
-
-module.exports = mainWindow

atom-lib/menu-template.js

@@ -1,122 +0,0 @@
-const electron = require('electron')
-const BrowserWindow = electron.BrowserWindow
-
-module.exports = [
-  {
-    label: 'Electron',
-    submenu: [
-      {
-        label: 'About Boost',
-        selector: 'orderFrontStandardAboutPanel:'
-      },
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Services',
-        submenu: []
-      },
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Hide Boost',
-        accelerator: 'Command+H',
-        selector: 'hide:'
-      },
-      {
-        label: 'Hide Others',
-        accelerator: 'Command+Shift+H',
-        selector: 'hideOtherApplications:'
-      },
-      {
-        label: 'Show All',
-        selector: 'unhideAllApplications:'
-      },
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Quit',
-        accelerator: 'Command+Q',
-        selector: 'terminate:'
-      }
-    ]
-  },
-  {
-    label: 'Edit',
-    submenu: [
-      {
-        label: 'Undo',
-        accelerator: 'Command+Z',
-        selector: 'undo:'
-      },
-      {
-        label: 'Redo',
-        accelerator: 'Shift+Command+Z',
-        selector: 'redo:'
-      },
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Cut',
-        accelerator: 'Command+X',
-        selector: 'cut:'
-      },
-      {
-        label: 'Copy',
-        accelerator: 'Command+C',
-        selector: 'copy:'
-      },
-      {
-        label: 'Paste',
-        accelerator: 'Command+V',
-        selector: 'paste:'
-      },
-      {
-        label: 'Select All',
-        accelerator: 'Command+A',
-        selector: 'selectAll:'
-      }
-    ]
-  },
-  {
-    label: 'View',
-    submenu: [
-      {
-        label: 'Reload',
-        accelerator: 'Command+R',
-        click: function () {
-          BrowserWindow.getFocusedWindow().reload()
-        }
-      }
-    ]
-  },
-  {
-    label: 'Window',
-    submenu: [
-      {
-        label: 'Minimize',
-        accelerator: 'Command+M',
-        selector: 'performMiniaturize:'
-      },
-      {
-        label: 'Close',
-        accelerator: 'Command+W',
-        selector: 'performClose:'
-      },
-      {
-        type: 'separator'
-      },
-      {
-        label: 'Bring All to Front',
-        selector: 'arrangeInFront:'
-      }
-    ]
-  },
-  {
-    label: 'Help',
-    submenu: []
-  }
-]

browser/components/CodeEditor.styl

@@ -0,0 +1,5 @@
+.codeEditor-typo
+  text-decoration underline wavy red
+
+.spellcheck-select
+  border: none

browser/components/ColorPicker.js

@@ -0,0 +1,77 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+import { SketchPicker } from 'react-color'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './ColorPicker.styl'
+
+const componentHeight = 330
+
+class ColorPicker extends React.Component {
+  constructor(props) {
+    super(props)
+
+    this.state = {
+      color: this.props.color || '#939395'
+    }
+
+    this.onColorChange = this.onColorChange.bind(this)
+    this.handleConfirm = this.handleConfirm.bind(this)
+  }
+
+  componentWillReceiveProps(nextProps) {
+    this.onColorChange(nextProps.color)
+  }
+
+  onColorChange(color) {
+    this.setState({
+      color
+    })
+  }
+
+  handleConfirm() {
+    this.props.onConfirm(this.state.color)
+  }
+
+  render() {
+    const { onReset, onCancel, targetRect } = this.props
+    const { color } = this.state
+
+    const clientHeight = document.body.clientHeight
+    const alignX = targetRect.right + 4
+    let alignY = targetRect.top
+    if (targetRect.top + componentHeight > clientHeight) {
+      alignY = targetRect.bottom - componentHeight
+    }
+
+    return (
+      <div
+        styleName='colorPicker'
+        style={{ top: `${alignY}px`, left: `${alignX}px` }}
+      >
+        <div styleName='cover' onClick={onCancel} />
+        <SketchPicker color={color} onChange={this.onColorChange} />
+        <div styleName='footer'>
+          <button styleName='btn-reset' onClick={onReset}>
+            Reset
+          </button>
+          <button styleName='btn-cancel' onClick={onCancel}>
+            Cancel
+          </button>
+          <button styleName='btn-confirm' onClick={this.handleConfirm}>
+            Confirm
+          </button>
+        </div>
+      </div>
+    )
+  }
+}
+
+ColorPicker.propTypes = {
+  color: PropTypes.string,
+  targetRect: PropTypes.object,
+  onConfirm: PropTypes.func.isRequired,
+  onCancel: PropTypes.func.isRequired,
+  onReset: PropTypes.func.isRequired
+}
+
+export default CSSModules(ColorPicker, styles)

browser/components/ColorPicker.styl

@@ -0,0 +1,39 @@
+.colorPicker
+  position fixed
+  z-index 2
+  display flex
+  flex-direction column
+
+.cover
+  position fixed
+  top 0
+  right 0
+  bottom 0
+  left 0
+
+.footer
+  display flex
+  justify-content center
+  z-index 2
+  align-items center
+  & > button + button
+    margin-left 10px
+
+.btn-cancel,
+.btn-confirm,
+.btn-reset
+  vertical-align middle
+  height 25px
+  margin-top 2.5px
+  border-radius 2px
+  border none
+  padding 0 5px
+  background-color $default-button-background
+  &:hover
+    background-color $default-button-background--hover
+.btn-confirm
+  background-color #1EC38B
+  &:hover
+    background-color darken(#1EC38B, 25%)
+
+

browser/components/MarkdownEditor.js

@@ -0,0 +1,447 @@
+/* eslint-disable camelcase */
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './MarkdownEditor.styl'
+import CodeEditor from 'browser/components/CodeEditor'
+import MarkdownPreview from 'browser/components/MarkdownPreview'
+import eventEmitter from 'browser/main/lib/eventEmitter'
+import { findStorage } from 'browser/lib/findStorage'
+import ConfigManager from 'browser/main/lib/ConfigManager'
+import attachmentManagement from 'browser/main/lib/dataApi/attachmentManagement'
+
+class MarkdownEditor extends React.Component {
+  constructor(props) {
+    super(props)
+
+    // char codes for ctrl + w
+    this.escapeFromEditor = [17, 87]
+
+    // ctrl + shift + ;
+    this.supportMdSelectionBold = [16, 17, 186]
+
+    this.state = {
+      status:
+        props.config.editor.switchPreview === 'RIGHTCLICK'
+          ? props.config.editor.delfaultStatus
+          : 'CODE',
+      renderValue: props.value,
+      keyPressed: new Set(),
+      isLocked: props.isLocked
+    }
+
+    this.lockEditorCode = this.handleLockEditor.bind(this)
+    this.focusEditor = this.focusEditor.bind(this)
+
+    this.previewRef = React.createRef()
+  }
+
+  componentDidMount() {
+    this.value = this.refs.code.value
+    eventEmitter.on('editor:lock', this.lockEditorCode)
+    eventEmitter.on('editor:focus', this.focusEditor)
+  }
+
+  componentDidUpdate() {
+    this.value = this.refs.code.value
+  }
+
+  UNSAFE_componentWillReceiveProps(props) {
+    if (props.value !== this.props.value) {
+      this.queueRendering(props.value)
+    }
+  }
+
+  componentWillUnmount() {
+    this.cancelQueue()
+    eventEmitter.off('editor:lock', this.lockEditorCode)
+    eventEmitter.off('editor:focus', this.focusEditor)
+  }
+
+  focusEditor() {
+    this.setState(
+      {
+        status: 'CODE'
+      },
+      () => {
+        if (this.refs.code == null) {
+          return
+        }
+        this.refs.code.focus()
+      }
+    )
+  }
+
+  queueRendering(value) {
+    clearTimeout(this.renderTimer)
+    this.renderTimer = setTimeout(() => {
+      this.renderPreview(value)
+    }, 500)
+  }
+
+  cancelQueue() {
+    clearTimeout(this.renderTimer)
+  }
+
+  renderPreview(value) {
+    this.setState({
+      renderValue: value
+    })
+  }
+
+  setValue(value) {
+    this.refs.code.setValue(value)
+  }
+
+  handleChange(e) {
+    this.value = this.refs.code.value
+    this.props.onChange(e)
+  }
+
+  handleContextMenu(e) {
+    if (this.state.isLocked) return
+    const { config } = this.props
+    if (config.editor.switchPreview === 'RIGHTCLICK') {
+      const newStatus = this.state.status === 'PREVIEW' ? 'CODE' : 'PREVIEW'
+      this.setState(
+        {
+          status: newStatus
+        },
+        () => {
+          if (newStatus === 'CODE') {
+            this.refs.code.focus()
+          } else {
+            this.previewRef.current.focus()
+          }
+          eventEmitter.emit('topbar:togglelockbutton', this.state.status)
+
+          const newConfig = Object.assign({}, config)
+          newConfig.editor.delfaultStatus = newStatus
+          ConfigManager.set(newConfig)
+        }
+      )
+    }
+  }
+
+  handleBlur(e) {
+    if (this.state.isLocked) return
+    this.setState({ keyPressed: new Set() })
+    const { config } = this.props
+    if (
+      config.editor.switchPreview === 'BLUR' ||
+      (config.editor.switchPreview === 'DBL_CLICK' &&
+        this.state.status === 'CODE')
+    ) {
+      const cursorPosition = this.refs.code.editor.getCursor()
+      this.setState(
+        {
+          status: 'PREVIEW'
+        },
+        () => {
+          this.previewRef.current.focus()
+          this.previewRef.current.scrollToLine(cursorPosition.line)
+        }
+      )
+      eventEmitter.emit('topbar:togglelockbutton', this.state.status)
+    }
+  }
+
+  handleDoubleClick(e) {
+    if (this.state.isLocked) return
+    this.setState({ keyPressed: new Set() })
+    const { config } = this.props
+    if (config.editor.switchPreview === 'DBL_CLICK') {
+      this.setState(
+        {
+          status: 'CODE'
+        },
+        () => {
+          this.refs.code.focus()
+          eventEmitter.emit('topbar:togglelockbutton', this.state.status)
+        }
+      )
+    }
+  }
+
+  handlePreviewMouseDown(e) {
+    this.previewMouseDownedAt = new Date()
+  }
+
+  handlePreviewMouseUp(e) {
+    const { config } = this.props
+    if (
+      config.editor.switchPreview === 'BLUR' &&
+      new Date() - this.previewMouseDownedAt < 200
+    ) {
+      this.setState(
+        {
+          status: 'CODE'
+        },
+        () => {
+          this.refs.code.focus()
+        }
+      )
+      eventEmitter.emit('topbar:togglelockbutton', this.state.status)
+    }
+  }
+
+  handleCheckboxClick(e) {
+    e.preventDefault()
+    e.stopPropagation()
+    const idMatch = /checkbox-([0-9]+)/
+    const checkedMatch = /^(\s*>?)*\s*[+\-*] \[x]/i
+    const uncheckedMatch = /^(\s*>?)*\s*[+\-*] \[ ]/
+    const checkReplace = /\[x]/i
+    const uncheckReplace = /\[ ]/
+    if (idMatch.test(e.target.getAttribute('id'))) {
+      const lineIndex =
+        parseInt(e.target.getAttribute('id').match(idMatch)[1], 10) - 1
+      const lines = this.refs.code.value.split('\n')
+
+      const targetLine = lines[lineIndex]
+      let newLine = targetLine
+
+      if (targetLine.match(checkedMatch)) {
+        newLine = targetLine.replace(checkReplace, '[ ]')
+      }
+      if (targetLine.match(uncheckedMatch)) {
+        newLine = targetLine.replace(uncheckReplace, '[x]')
+      }
+      this.refs.code.setLineContent(lineIndex, newLine)
+    }
+  }
+
+  focus() {
+    if (this.state.status === 'PREVIEW') {
+      this.setState(
+        {
+          status: 'CODE'
+        },
+        () => {
+          this.refs.code.focus()
+        }
+      )
+    } else {
+      this.refs.code.focus()
+    }
+    eventEmitter.emit('topbar:togglelockbutton', this.state.status)
+  }
+
+  reload() {
+    this.refs.code.reload()
+    this.cancelQueue()
+    this.renderPreview(this.props.value)
+  }
+
+  handleKeyDown(e) {
+    const { config } = this.props
+    if (this.state.status !== 'CODE') return false
+    const keyPressed = this.state.keyPressed
+    keyPressed.add(e.keyCode)
+    this.setState({ keyPressed })
+    const isNoteHandlerKey = el => {
+      return keyPressed.has(el)
+    }
+    // These conditions are for ctrl-e and ctrl-w
+    if (
+      keyPressed.size === this.escapeFromEditor.length &&
+      !this.state.isLocked &&
+      this.state.status === 'CODE' &&
+      this.escapeFromEditor.every(isNoteHandlerKey)
+    ) {
+      this.handleContextMenu()
+      if (config.editor.switchPreview === 'BLUR') document.activeElement.blur()
+    }
+    if (
+      keyPressed.size === this.supportMdSelectionBold.length &&
+      this.supportMdSelectionBold.every(isNoteHandlerKey)
+    ) {
+      this.addMdAroundWord('**')
+    }
+  }
+
+  addMdAroundWord(mdElement) {
+    if (this.refs.code.editor.getSelection()) {
+      return this.addMdAroundSelection(mdElement)
+    }
+    const currentCaret = this.refs.code.editor.getCursor()
+    const word = this.refs.code.editor.findWordAt(currentCaret)
+    const cmDoc = this.refs.code.editor.getDoc()
+    cmDoc.replaceRange(mdElement, word.anchor)
+    cmDoc.replaceRange(mdElement, {
+      line: word.head.line,
+      ch: word.head.ch + mdElement.length
+    })
+  }
+
+  addMdAroundSelection(mdElement) {
+    this.refs.code.editor.replaceSelection(
+      `${mdElement}${this.refs.code.editor.getSelection()}${mdElement}`
+    )
+  }
+
+  handleDropImage(dropEvent) {
+    dropEvent.preventDefault()
+    const { storageKey, noteKey } = this.props
+
+    this.setState(
+      {
+        status: 'CODE'
+      },
+      () => {
+        this.refs.code.focus()
+
+        this.refs.code.editor.execCommand('goDocEnd')
+        this.refs.code.editor.execCommand('goLineEnd')
+        this.refs.code.editor.execCommand('newlineAndIndent')
+
+        attachmentManagement.handleAttachmentDrop(
+          this.refs.code,
+          storageKey,
+          noteKey,
+          dropEvent
+        )
+      }
+    )
+  }
+
+  handleKeyUp(e) {
+    const keyPressed = this.state.keyPressed
+    keyPressed.delete(e.keyCode)
+    this.setState({ keyPressed })
+  }
+
+  handleLockEditor() {
+    this.setState({ isLocked: !this.state.isLocked })
+  }
+
+  render() {
+    const {
+      className,
+      value,
+      config,
+      storageKey,
+      noteKey,
+      linesHighlighted,
+      getNote,
+      RTL
+    } = this.props
+
+    let editorFontSize = parseInt(config.editor.fontSize, 10)
+    if (!(editorFontSize > 0 && editorFontSize < 101)) editorFontSize = 14
+    let editorIndentSize = parseInt(config.editor.indentSize, 10)
+    if (!(editorFontSize > 0 && editorFontSize < 132)) editorIndentSize = 4
+
+    const previewStyle = {}
+    if (this.props.ignorePreviewPointerEvents)
+      previewStyle.pointerEvents = 'none'
+
+    const storage = findStorage(storageKey)
+
+    return (
+      <div
+        className={
+          className == null ? 'MarkdownEditor' : `MarkdownEditor ${className}`
+        }
+        onContextMenu={e => this.handleContextMenu(e)}
+        tabIndex='-1'
+        onKeyDown={e => this.handleKeyDown(e)}
+        onKeyUp={e => this.handleKeyUp(e)}
+      >
+        <CodeEditor
+          styleName={
+            this.state.status === 'CODE' ? 'codeEditor' : 'codeEditor--hide'
+          }
+          ref='code'
+          mode='Boost Flavored Markdown'
+          value={value}
+          theme={config.editor.theme}
+          keyMap={config.editor.keyMap}
+          fontFamily={config.editor.fontFamily}
+          fontSize={editorFontSize}
+          indentType={config.editor.indentType}
+          indentSize={editorIndentSize}
+          enableRulers={config.editor.enableRulers}
+          rulers={config.editor.rulers}
+          displayLineNumbers={config.editor.displayLineNumbers}
+          lineWrapping
+          matchingPairs={config.editor.matchingPairs}
+          matchingCloseBefore={config.editor.matchingCloseBefore}
+          matchingTriples={config.editor.matchingTriples}
+          explodingPairs={config.editor.explodingPairs}
+          codeBlockMatchingPairs={config.editor.codeBlockMatchingPairs}
+          codeBlockMatchingCloseBefore={
+            config.editor.codeBlockMatchingCloseBefore
+          }
+          codeBlockMatchingTriples={config.editor.codeBlockMatchingTriples}
+          codeBlockExplodingPairs={config.editor.codeBlockExplodingPairs}
+          scrollPastEnd={config.editor.scrollPastEnd}
+          storageKey={storageKey}
+          noteKey={noteKey}
+          fetchUrlTitle={config.editor.fetchUrlTitle}
+          enableTableEditor={config.editor.enableTableEditor}
+          linesHighlighted={linesHighlighted}
+          onChange={e => this.handleChange(e)}
+          onBlur={e => this.handleBlur(e)}
+          spellCheck={config.editor.spellcheck}
+          enableSmartPaste={config.editor.enableSmartPaste}
+          hotkey={config.hotkey}
+          switchPreview={config.editor.switchPreview}
+          enableMarkdownLint={config.editor.enableMarkdownLint}
+          customMarkdownLintConfig={config.editor.customMarkdownLintConfig}
+          dateFormatISO8601={config.editor.dateFormatISO8601}
+          prettierConfig={config.editor.prettierConfig}
+          deleteUnusedAttachments={config.editor.deleteUnusedAttachments}
+          RTL={RTL}
+        />
+        <MarkdownPreview
+          ref={this.previewRef}
+          styleName={
+            this.state.status === 'PREVIEW' ? 'preview' : 'preview--hide'
+          }
+          style={previewStyle}
+          theme={config.ui.theme}
+          keyMap={config.editor.keyMap}
+          fontSize={config.preview.fontSize}
+          fontFamily={config.preview.fontFamily}
+          codeBlockTheme={config.preview.codeBlockTheme}
+          codeBlockFontFamily={config.editor.fontFamily}
+          lineNumber={config.preview.lineNumber}
+          indentSize={editorIndentSize}
+          scrollPastEnd={config.preview.scrollPastEnd}
+          smartQuotes={config.preview.smartQuotes}
+          smartArrows={config.preview.smartArrows}
+          breaks={config.preview.breaks}
+          sanitize={config.preview.sanitize}
+          mermaidHTMLLabel={config.preview.mermaidHTMLLabel}
+          onContextMenu={e => this.handleContextMenu(e)}
+          onDoubleClick={e => this.handleDoubleClick(e)}
+          tabIndex='0'
+          value={this.state.renderValue}
+          onMouseUp={e => this.handlePreviewMouseUp(e)}
+          onMouseDown={e => this.handlePreviewMouseDown(e)}
+          onCheckboxClick={e => this.handleCheckboxClick(e)}
+          showCopyNotification={config.ui.showCopyNotification}
+          storagePath={storage.path}
+          noteKey={noteKey}
+          customCSS={config.preview.customCSS}
+          allowCustomCSS={config.preview.allowCustomCSS}
+          lineThroughCheckbox={config.preview.lineThroughCheckbox}
+          getNote={getNote}
+          export={config.export}
+          onDrop={e => this.handleDropImage(e)}
+          RTL={RTL}
+        />
+      </div>
+    )
+  }
+}
+
+MarkdownEditor.propTypes = {
+  className: PropTypes.string,
+  value: PropTypes.string,
+  onChange: PropTypes.func,
+  ignorePreviewPointerEvents: PropTypes.bool
+}
+
+export default CSSModules(MarkdownEditor, styles)

browser/components/MarkdownEditor.styl

@@ -0,0 +1,26 @@
+.root
+  position relative
+
+.codeEditor
+  absolute top bottom left right
+
+.hide
+  z-index 0
+  opacity 0
+  pointer-events none
+
+.codeEditor--hide
+  @extend .codeEditor
+  @extend .hide
+
+.preview
+  display block
+  absolute top bottom left right
+  background-color white
+  height 100%
+  width 100%
+
+.preview--hide
+  @extend .preview
+  @extend .hide
+

browser/components/MarkdownPreview.js

@@ -0,0 +1,913 @@
+import PropTypes from 'prop-types'
+import React from 'react'
+import { connect } from 'react-redux'
+import Markdown from 'browser/lib/markdown'
+import _ from 'lodash'
+import CodeMirror from 'codemirror'
+import 'codemirror-mode-elixir'
+import consts from 'browser/lib/consts'
+import Raphael from 'raphael'
+import flowchart from 'flowchart'
+import mermaidRender from './render/MermaidRender'
+import SequenceDiagram from '@rokt33r/js-sequence-diagrams'
+import Chart from 'chart.js'
+import eventEmitter from 'browser/main/lib/eventEmitter'
+import config from 'browser/main/lib/ConfigManager'
+import htmlTextHelper from 'browser/lib/htmlTextHelper'
+import convertModeName from 'browser/lib/convertModeName'
+import copy from 'copy-to-clipboard'
+import mdurl from 'mdurl'
+import exportNote from 'browser/main/lib/dataApi/exportNote'
+import formatMarkdown from 'browser/main/lib/dataApi/formatMarkdown'
+import formatHTML, {
+  CSS_FILES,
+  buildStyle,
+  getCodeThemeLink,
+  getStyleParams,
+  escapeHtmlCharactersInCodeTag
+} from 'browser/main/lib/dataApi/formatHTML'
+import formatPDF from 'browser/main/lib/dataApi/formatPDF'
+import yaml from 'js-yaml'
+import i18n from 'browser/lib/i18n'
+import path from 'path'
+import { remote, shell } from 'electron'
+import attachmentManagement from '../main/lib/dataApi/attachmentManagement'
+import filenamify from 'filenamify'
+import { render } from 'react-dom'
+import Carousel from 'react-image-carousel'
+import { push } from 'connected-react-router'
+import ConfigManager from '../main/lib/ConfigManager'
+import uiThemes from 'browser/lib/ui-themes'
+import { buildMarkdownPreviewContextMenu } from 'browser/lib/contextMenuBuilder'
+
+const dialog = remote.dialog
+
+const scrollBarStyle = `
+::-webkit-scrollbar {
+  ${config.get().ui.showScrollBar ? '' : 'display: none;'}
+  width: 12px;
+}
+
+::-webkit-scrollbar-thumb {
+  ${config.get().ui.showScrollBar ? '' : 'display: none;'}
+  background-color: rgba(0, 0, 0, 0.15);
+}
+
+::-webkit-scrollbar-track-piece {
+  background-color: inherit;
+}
+`
+const scrollBarDarkStyle = `
+::-webkit-scrollbar {
+  ${config.get().ui.showScrollBar ? '' : 'display: none;'}
+  width: 12px;
+}
+
+::-webkit-scrollbar-thumb {
+  ${config.get().ui.showScrollBar ? '' : 'display: none;'}
+  background-color: rgba(0, 0, 0, 0.3);
+}
+
+::-webkit-scrollbar-track-piece {
+  background-color: inherit;
+}
+`
+
+// return the line number of the line that used to generate the specified element
+// return -1 if the line is not found
+function getSourceLineNumberByElement(element) {
+  let isHasLineNumber = element.dataset.line !== undefined
+  let parent = element
+  while (!isHasLineNumber && parent.parentElement !== null) {
+    parent = parent.parentElement
+    isHasLineNumber = parent.dataset.line !== undefined
+  }
+  return parent.dataset.line !== undefined ? parseInt(parent.dataset.line) : -1
+}
+
+class MarkdownPreview extends React.Component {
+  constructor(props) {
+    super(props)
+
+    this.contextMenuHandler = e => this.handleContextMenu(e)
+    this.mouseDownHandler = e => this.handleMouseDown(e)
+    this.mouseUpHandler = e => this.handleMouseUp(e)
+    this.DoubleClickHandler = e => this.handleDoubleClick(e)
+    this.scrollHandler = _.debounce(this.handleScroll.bind(this), 100, {
+      leading: false,
+      trailing: true
+    })
+    this.checkboxClickHandler = e => this.handleCheckboxClick(e)
+    this.saveAsTextHandler = () => this.handleSaveAsText()
+    this.saveAsMdHandler = () => this.handleSaveAsMd()
+    this.saveAsHtmlHandler = () => this.handleSaveAsHtml()
+    this.saveAsPdfHandler = () => this.handleSaveAsPdf()
+    this.printHandler = () => this.handlePrint()
+    this.resizeHandler = _.throttle(this.handleResize.bind(this), 100)
+
+    this.linkClickHandler = this.handleLinkClick.bind(this)
+    this.initMarkdown = this.initMarkdown.bind(this)
+    this.initMarkdown()
+  }
+
+  initMarkdown() {
+    const { smartQuotes, sanitize, breaks } = this.props
+    this.markdown = new Markdown({
+      typographer: smartQuotes,
+      sanitize,
+      breaks
+    })
+  }
+
+  handleCheckboxClick(e) {
+    this.props.onCheckboxClick(e)
+  }
+
+  handleScroll(e) {
+    if (this.props.onScroll) {
+      this.props.onScroll(e)
+    }
+  }
+
+  handleContextMenu(event) {
+    const menu = buildMarkdownPreviewContextMenu(this, event)
+    const switchPreview = ConfigManager.get().editor.switchPreview
+    if (menu != null && switchPreview !== 'RIGHTCLICK') {
+      menu.popup(remote.getCurrentWindow())
+    } else if (_.isFunction(this.props.onContextMenu)) {
+      this.props.onContextMenu(event)
+    }
+  }
+
+  handleDoubleClick(e) {
+    if (this.props.onDoubleClick != null) this.props.onDoubleClick(e)
+  }
+
+  handleMouseDown(e) {
+    const config = ConfigManager.get()
+    const clickElement = e.target
+    const targetTag = clickElement.tagName // The direct parent HTML of where was clicked ie "BODY" or "DIV"
+    const lineNumber = getSourceLineNumberByElement(clickElement) // Line location of element clicked.
+
+    if (
+      config.editor.switchPreview === 'RIGHTCLICK' &&
+      e.buttons === 2 &&
+      config.editor.type === 'SPLIT'
+    ) {
+      eventEmitter.emit('topbar:togglemodebutton', 'CODE')
+    }
+    if (e.ctrlKey) {
+      if (config.editor.type === 'SPLIT') {
+        if (lineNumber !== -1) {
+          eventEmitter.emit('line:jump', lineNumber)
+        }
+      } else {
+        if (lineNumber !== -1) {
+          eventEmitter.emit('editor:focus')
+          eventEmitter.emit('line:jump', lineNumber)
+        }
+      }
+    }
+
+    if (this.props.onMouseDown != null && targetTag === 'BODY')
+      this.props.onMouseDown(e)
+  }
+
+  handleMouseUp(e) {
+    if (!this.props.onMouseUp) return
+    if (e.target != null && e.target.tagName === 'A') {
+      return null
+    }
+    if (this.props.onMouseUp != null) this.props.onMouseUp(e)
+  }
+
+  handleSaveAsText() {
+    this.exportAsDocument('txt')
+  }
+
+  handleSaveAsMd() {
+    this.exportAsDocument('md', formatMarkdown(this.props))
+  }
+
+  handleSaveAsHtml() {
+    this.exportAsDocument('html', formatHTML(this.props))
+  }
+
+  handleSaveAsPdf() {
+    this.exportAsDocument('pdf', formatPDF(this.props))
+  }
+
+  handlePrint() {
+    this.refs.root.contentWindow.print()
+  }
+
+  exportAsDocument(fileType, contentFormatter) {
+    const note = this.props.getNote()
+
+    const options = {
+      defaultPath: filenamify(note.title, {
+        replacement: '_'
+      }),
+      filters: [{ name: 'Documents', extensions: [fileType] }],
+      properties: ['openFile', 'createDirectory']
+    }
+
+    dialog.showSaveDialog(remote.getCurrentWindow(), options, filename => {
+      if (filename) {
+        const storagePath = this.props.storagePath
+
+        exportNote(storagePath, note, filename, contentFormatter)
+          .then(res => {
+            dialog.showMessageBox(remote.getCurrentWindow(), {
+              type: 'info',
+              message: `Exported to ${filename}`,
+              buttons: [i18n.__('Ok')]
+            })
+          })
+          .catch(err => {
+            dialog.showErrorBox(
+              'Export error',
+              err ? err.message || err : 'Unexpected error during export'
+            )
+            throw err
+          })
+      }
+    })
+  }
+
+  fixDecodedURI(node) {
+    if (
+      node &&
+      node.children.length === 1 &&
+      typeof node.children[0] === 'string'
+    ) {
+      const { innerText, href } = node
+
+      node.innerText = mdurl.decode(href) === innerText ? href : innerText
+    }
+  }
+
+  getScrollBarStyle() {
+    const { theme } = this.props
+
+    return uiThemes.some(item => item.name === theme && item.isDark)
+      ? scrollBarDarkStyle
+      : scrollBarStyle
+  }
+
+  componentDidMount() {
+    const { onDrop } = this.props
+
+    this.refs.root.setAttribute('sandbox', 'allow-scripts')
+    this.refs.root.contentWindow.document.body.addEventListener(
+      'contextmenu',
+      this.contextMenuHandler
+    )
+
+    let styles = `
+      <style id='style'></style>
+      <link rel="stylesheet" id="codeTheme">
+      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+      <style>
+        ${this.getScrollBarStyle()}
+      </style>
+    `
+
+    CSS_FILES.forEach(file => {
+      styles += `<link rel="stylesheet" href="${file}">`
+    })
+
+    this.refs.root.contentWindow.document.head.innerHTML = styles
+    this.rewriteIframe()
+    this.applyStyle()
+
+    this.refs.root.contentWindow.document.addEventListener(
+      'mousedown',
+      this.mouseDownHandler
+    )
+    this.refs.root.contentWindow.document.addEventListener(
+      'mouseup',
+      this.mouseUpHandler
+    )
+    this.refs.root.contentWindow.document.addEventListener(
+      'dblclick',
+      this.DoubleClickHandler
+    )
+    this.refs.root.contentWindow.document.addEventListener(
+      'drop',
+      onDrop || this.preventImageDroppedHandler
+    )
+    this.refs.root.contentWindow.document.addEventListener(
+      'dragover',
+      this.preventImageDroppedHandler
+    )
+    this.refs.root.contentWindow.document.addEventListener(
+      'scroll',
+      this.scrollHandler
+    )
+    this.refs.root.contentWindow.addEventListener('resize', this.resizeHandler)
+    eventEmitter.on('export:save-text', this.saveAsTextHandler)
+    eventEmitter.on('export:save-md', this.saveAsMdHandler)
+    eventEmitter.on('export:save-html', this.saveAsHtmlHandler)
+    eventEmitter.on('export:save-pdf', this.saveAsPdfHandler)
+    eventEmitter.on('print', this.printHandler)
+  }
+
+  componentWillUnmount() {
+    const { onDrop } = this.props
+
+    this.refs.root.contentWindow.document.body.removeEventListener(
+      'contextmenu',
+      this.contextMenuHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'mousedown',
+      this.mouseDownHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'mouseup',
+      this.mouseUpHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'dblclick',
+      this.DoubleClickHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'drop',
+      onDrop || this.preventImageDroppedHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'dragover',
+      this.preventImageDroppedHandler
+    )
+    this.refs.root.contentWindow.document.removeEventListener(
+      'scroll',
+      this.scrollHandler
+    )
+    this.refs.root.contentWindow.removeEventListener(
+      'resize',
+      this.resizeHandler
+    )
+    eventEmitter.off('export:save-text', this.saveAsTextHandler)
+    eventEmitter.off('export:save-md', this.saveAsMdHandler)
+    eventEmitter.off('export:save-html', this.saveAsHtmlHandler)
+    eventEmitter.off('export:save-pdf', this.saveAsPdfHandler)
+    eventEmitter.off('print', this.printHandler)
+  }
+
+  componentDidUpdate(prevProps) {
+    // actual rewriteIframe function should be called only once
+    let needsRewriteIframe = false
+    if (prevProps.value !== this.props.value) needsRewriteIframe = true
+    if (
+      prevProps.smartQuotes !== this.props.smartQuotes ||
+      prevProps.sanitize !== this.props.sanitize ||
+      prevProps.mermaidHTMLLabel !== this.props.mermaidHTMLLabel ||
+      prevProps.smartArrows !== this.props.smartArrows ||
+      prevProps.breaks !== this.props.breaks ||
+      prevProps.lineThroughCheckbox !== this.props.lineThroughCheckbox
+    ) {
+      this.initMarkdown()
+      needsRewriteIframe = true
+    }
+    if (
+      prevProps.fontFamily !== this.props.fontFamily ||
+      prevProps.fontSize !== this.props.fontSize ||
+      prevProps.codeBlockFontFamily !== this.props.codeBlockFontFamily ||
+      prevProps.codeBlockTheme !== this.props.codeBlockTheme ||
+      prevProps.lineNumber !== this.props.lineNumber ||
+      prevProps.showCopyNotification !== this.props.showCopyNotification ||
+      prevProps.theme !== this.props.theme ||
+      prevProps.scrollPastEnd !== this.props.scrollPastEnd ||
+      prevProps.allowCustomCSS !== this.props.allowCustomCSS ||
+      prevProps.customCSS !== this.props.customCSS ||
+      prevProps.RTL !== this.props.RTL
+    ) {
+      this.applyStyle()
+      needsRewriteIframe = true
+    }
+
+    if (needsRewriteIframe) {
+      this.rewriteIframe()
+    }
+
+    // Should scroll to top after selecting another note
+    if (prevProps.noteKey !== this.props.noteKey) {
+      this.scrollTo(0, 0)
+    }
+  }
+
+  applyStyle() {
+    const {
+      fontFamily,
+      fontSize,
+      codeBlockFontFamily,
+      lineNumber,
+      codeBlockTheme,
+      scrollPastEnd,
+      theme,
+      allowCustomCSS,
+      customCSS,
+      RTL
+    } = getStyleParams(this.props)
+
+    this.getWindow().document.getElementById(
+      'codeTheme'
+    ).href = getCodeThemeLink(codeBlockTheme)
+
+    this.getWindow().document.getElementById('style').innerHTML = buildStyle(
+      fontFamily,
+      fontSize,
+      codeBlockFontFamily,
+      lineNumber,
+      scrollPastEnd,
+      theme,
+      allowCustomCSS,
+      customCSS,
+      RTL
+    )
+  }
+
+  rewriteIframe() {
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll(
+        'input[type="checkbox"]'
+      ),
+      el => {
+        el.removeEventListener('click', this.checkboxClickHandler)
+      }
+    )
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('a'),
+      el => {
+        el.removeEventListener('click', this.linkClickHandler)
+      }
+    )
+
+    const {
+      theme,
+      indentSize,
+      showCopyNotification,
+      storagePath,
+      noteKey,
+      sanitize,
+      mermaidHTMLLabel
+    } = this.props
+    let { value, codeBlockTheme } = this.props
+
+    this.refs.root.contentWindow.document.body.setAttribute('data-theme', theme)
+    if (sanitize === 'NONE') {
+      const splitWithCodeTag = value.split('```')
+      value = escapeHtmlCharactersInCodeTag(splitWithCodeTag)
+    }
+    const renderedHTML = this.markdown.render(value)
+    attachmentManagement.migrateAttachments(value, storagePath, noteKey)
+    this.refs.root.contentWindow.document.body.innerHTML = attachmentManagement.fixLocalURLS(
+      renderedHTML,
+      storagePath
+    )
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll(
+        'input[type="checkbox"]'
+      ),
+      el => {
+        el.addEventListener('click', this.checkboxClickHandler)
+      }
+    )
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('a'),
+      el => {
+        this.fixDecodedURI(el)
+        el.addEventListener('click', this.linkClickHandler)
+      }
+    )
+
+    codeBlockTheme = consts.THEMES.find(theme => theme.name === codeBlockTheme)
+
+    const codeBlockThemeClassName = codeBlockTheme
+      ? codeBlockTheme.className
+      : 'cm-s-default'
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.code code'),
+      el => {
+        let syntax = CodeMirror.findModeByName(convertModeName(el.className))
+        if (syntax == null) syntax = CodeMirror.findModeByName('Plain Text')
+        CodeMirror.requireMode(syntax.mode, () => {
+          const content = htmlTextHelper.decodeEntities(el.innerHTML)
+          const copyIcon = document.createElement('i')
+          copyIcon.innerHTML =
+            '<button class="clipboardButton"><svg width="13" height="13" viewBox="0 0 1792 1792" ><path d="M768 1664h896v-640h-416q-40 0-68-28t-28-68v-416h-384v1152zm256-1440v-64q0-13-9.5-22.5t-22.5-9.5h-704q-13 0-22.5 9.5t-9.5 22.5v64q0 13 9.5 22.5t22.5 9.5h704q13 0 22.5-9.5t9.5-22.5zm256 672h299l-299-299v299zm512 128v672q0 40-28 68t-68 28h-960q-40 0-68-28t-28-68v-160h-544q-40 0-68-28t-28-68v-1344q0-40 28-68t68-28h1088q40 0 68 28t28 68v328q21 13 36 28l408 408q28 28 48 76t20 88z"/></svg></button>'
+          copyIcon.onclick = e => {
+            e.preventDefault()
+            e.stopPropagation()
+            copy(content)
+            if (showCopyNotification) {
+              this.notify('Saved to Clipboard!', {
+                body: 'Paste it wherever you want!',
+                silent: true
+              })
+            }
+          }
+
+          el.parentNode.appendChild(copyIcon)
+          el.innerHTML = ''
+          el.parentNode.className += ` ${codeBlockThemeClassName}`
+
+          CodeMirror.runMode(content, syntax.mime, el, {
+            tabSize: indentSize
+          })
+        })
+      }
+    )
+
+    const opts = {}
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.flowchart'),
+      el => {
+        Raphael.setWindow(this.getWindow())
+        try {
+          const diagram = flowchart.parse(
+            htmlTextHelper.decodeEntities(el.innerHTML)
+          )
+          el.innerHTML = ''
+          diagram.drawSVG(el, opts)
+          _.forEach(el.querySelectorAll('a'), el => {
+            el.addEventListener('click', this.linkClickHandler)
+          })
+        } catch (e) {
+          el.className = 'flowchart-error'
+          el.innerHTML = 'Flowchart parse error: ' + e.message
+        }
+      }
+    )
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.sequence'),
+      el => {
+        Raphael.setWindow(this.getWindow())
+        try {
+          const diagram = SequenceDiagram.parse(
+            htmlTextHelper.decodeEntities(el.innerHTML)
+          )
+          el.innerHTML = ''
+          diagram.drawSVG(el, { theme: 'simple' })
+          _.forEach(el.querySelectorAll('a'), el => {
+            el.addEventListener('click', this.linkClickHandler)
+          })
+        } catch (e) {
+          el.className = 'sequence-error'
+          el.innerHTML = 'Sequence diagram parse error: ' + e.message
+        }
+      }
+    )
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.chart'),
+      el => {
+        try {
+          const format = el.attributes.getNamedItem('data-format').value
+          const chartConfig =
+            format === 'yaml'
+              ? yaml.load(el.innerHTML)
+              : JSON.parse(el.innerHTML)
+          el.innerHTML = ''
+
+          const canvas = document.createElement('canvas')
+          el.appendChild(canvas)
+
+          const height = el.attributes.getNamedItem('data-height')
+          if (height && height.value !== 'undefined') {
+            el.style.height = height.value + 'vh'
+            canvas.height = height.value + 'vh'
+          }
+
+          // eslint-disable-next-line no-unused-vars
+          const chart = new Chart(canvas, chartConfig)
+        } catch (e) {
+          el.className = 'chart-error'
+          el.innerHTML = 'chartjs diagram parse error: ' + e.message
+        }
+      }
+    )
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.mermaid'),
+      el => {
+        mermaidRender(
+          el,
+          htmlTextHelper.decodeEntities(el.innerHTML),
+          theme,
+          mermaidHTMLLabel
+        )
+      }
+    )
+
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('.gallery'),
+      el => {
+        const images = el.innerHTML.split(/\n/g).filter(i => i.length > 0)
+        el.innerHTML = ''
+
+        const height = el.attributes.getNamedItem('data-height')
+        if (height && height.value !== 'undefined') {
+          el.style.height = height.value + 'vh'
+        }
+
+        let autoplay = el.attributes.getNamedItem('data-autoplay')
+        if (autoplay && autoplay.value !== 'undefined') {
+          autoplay = parseInt(autoplay.value, 10) || 0
+        } else {
+          autoplay = 0
+        }
+
+        render(<Carousel images={images} autoplay={autoplay} />, el)
+      }
+    )
+
+    const markdownPreviewIframe = document.querySelector('.MarkdownPreview')
+    const rect = markdownPreviewIframe.getBoundingClientRect()
+    const config = { attributes: true, subtree: true }
+    const imgObserver = new MutationObserver(mutationList => {
+      for (const mu of mutationList) {
+        if (mu.target.className === 'carouselContent-enter-done') {
+          this.setImgOnClickEventHelper(mu.target, rect)
+          break
+        }
+      }
+    })
+
+    const imgList = markdownPreviewIframe.contentWindow.document.body.querySelectorAll(
+      'img'
+    )
+    for (const img of imgList) {
+      const parentEl = img.parentElement
+      this.setImgOnClickEventHelper(img, rect)
+      imgObserver.observe(parentEl, config)
+    }
+
+    const aList = markdownPreviewIframe.contentWindow.document.body.querySelectorAll(
+      'a'
+    )
+    for (const a of aList) {
+      a.removeEventListener('click', this.linkClickHandler)
+      a.addEventListener('click', this.linkClickHandler)
+    }
+  }
+
+  setImgOnClickEventHelper(img, rect) {
+    img.onclick = () => {
+      const widthMagnification = document.body.clientWidth / img.width
+      const heightMagnification = document.body.clientHeight / img.height
+      const baseOnWidth = widthMagnification < heightMagnification
+      const magnification = baseOnWidth
+        ? widthMagnification
+        : heightMagnification
+
+      const zoomImgWidth = img.width * magnification
+      const zoomImgHeight = img.height * magnification
+      const zoomImgTop = (document.body.clientHeight - zoomImgHeight) / 2
+      const zoomImgLeft = (document.body.clientWidth - zoomImgWidth) / 2
+      const originalImgTop = img.y + rect.top
+      const originalImgLeft = img.x + rect.left
+      const originalImgRect = {
+        top: `${originalImgTop}px`,
+        left: `${originalImgLeft}px`,
+        width: `${img.width}px`,
+        height: `${img.height}px`
+      }
+      const zoomInImgRect = {
+        top: `${baseOnWidth ? zoomImgTop : 0}px`,
+        left: `${baseOnWidth ? 0 : zoomImgLeft}px`,
+        width: `${zoomImgWidth}px`,
+        height: `${zoomImgHeight}px`
+      }
+      const animationSpeed = 300
+
+      const zoomImg = document.createElement('img')
+      zoomImg.src = img.src
+      zoomImg.style = `
+        position: absolute;
+        top: ${baseOnWidth ? zoomImgTop : 0}px;
+        left: ${baseOnWidth ? 0 : zoomImgLeft}px;
+        width: ${zoomImgWidth};
+        height: ${zoomImgHeight}px;
+        `
+      zoomImg.animate([originalImgRect, zoomInImgRect], animationSpeed)
+
+      const overlay = document.createElement('div')
+      overlay.style = `
+        background-color: rgba(0,0,0,0.5);
+        cursor: zoom-out;
+        position: absolute;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: ${document.body.clientHeight}px;
+        z-index: 100;
+      `
+      overlay.onclick = () => {
+        zoomImg.style = `
+          position: absolute;
+          top: ${originalImgTop}px;
+          left: ${originalImgLeft}px;
+          width: ${img.width}px;
+          height: ${img.height}px;
+          `
+        const zoomOutImgAnimation = zoomImg.animate(
+          [zoomInImgRect, originalImgRect],
+          animationSpeed
+        )
+        zoomOutImgAnimation.onfinish = () => overlay.remove()
+      }
+
+      overlay.appendChild(zoomImg)
+      document.body.appendChild(overlay)
+    }
+  }
+
+  handleResize() {
+    _.forEach(
+      this.refs.root.contentWindow.document.querySelectorAll('svg[ratio]'),
+      el => {
+        el.setAttribute('height', el.clientWidth / el.getAttribute('ratio'))
+      }
+    )
+  }
+
+  focus() {
+    this.refs.root.focus()
+  }
+
+  getWindow() {
+    return this.refs.root.contentWindow
+  }
+
+  /**
+   * @public
+   * @param {Number} targetLine
+   */
+  scrollToLine(targetLine) {
+    const blocks = this.getWindow().document.querySelectorAll(
+      'body [data-line]'
+    )
+
+    for (let index = 0; index < blocks.length; index++) {
+      let block = blocks[index]
+      const line = parseInt(block.getAttribute('data-line'))
+
+      if (line > targetLine || index === blocks.length - 1) {
+        block = blocks[index - 1]
+        block != null && this.scrollTo(0, block.offsetTop)
+        break
+      }
+    }
+  }
+
+  /**
+   * `document.body.scrollTo`
+   * @param {Number} x
+   * @param {Number} y
+   */
+  scrollTo(x, y) {
+    this.getWindow().document.body.scrollTo(x, y)
+  }
+
+  preventImageDroppedHandler(e) {
+    e.preventDefault()
+    e.stopPropagation()
+  }
+
+  notify(title, options) {
+    if (global.process.platform === 'win32') {
+      options.icon = path.join(
+        'file://',
+        global.__dirname,
+        '../../resources/app.png'
+      )
+    }
+    return new window.Notification(title, options)
+  }
+
+  handleLinkClick(e) {
+    e.preventDefault()
+    e.stopPropagation()
+
+    const el = e.target.closest('a[href]')
+    if (!el) return
+
+    const rawHref = el.getAttribute('href')
+    const { dispatch } = this.props
+    if (!rawHref) return // not checked href because parser will create file://... string for [empty link]()
+
+    const parser = document.createElement('a')
+    parser.href = rawHref
+    const isStartWithHash = rawHref[0] === '#'
+    const { href, hash } = parser
+
+    const linkHash = hash === '' ? rawHref : hash // needed because we're having special link formats that are removed by parser e.g. :line:10
+
+    const extractIdRegex = /file:\/\/.*main.?\w*.html#/ // file://path/to/main(.development.)html
+    const regexNoteInternalLink = new RegExp(`${extractIdRegex.source}(.+)`)
+    if (isStartWithHash || regexNoteInternalLink.test(rawHref)) {
+      const posOfHash = linkHash.indexOf('#')
+      if (posOfHash > -1) {
+        const extractedId = linkHash.slice(posOfHash + 1)
+        const targetId = mdurl.encode(extractedId)
+        const targetElement = this.getWindow().document.getElementById(targetId)
+
+        if (targetElement != null) {
+          this.scrollTo(0, targetElement.offsetTop)
+        }
+        return
+      }
+    }
+
+    // this will match the new uuid v4 hash and the old hash
+    // e.g.
+    // :note:1c211eb7dcb463de6490 and
+    // :note:7dd23275-f2b4-49cb-9e93-3454daf1af9c
+    const regexIsNoteLink = /^:note:([a-zA-Z0-9-]{20,36})$/
+    if (regexIsNoteLink.test(linkHash)) {
+      eventEmitter.emit('list:jump', linkHash.replace(':note:', ''))
+      return
+    }
+
+    const regexIsLine = /^:line:[0-9]/
+    if (regexIsLine.test(linkHash)) {
+      const numberPattern = /\d+/g
+
+      const lineNumber = parseInt(linkHash.match(numberPattern)[0])
+      eventEmitter.emit('line:jump', lineNumber)
+      return
+    }
+
+    // this will match the old link format storage.key-note.key
+    // e.g.
+    // 877f99c3268608328037-1c211eb7dcb463de6490
+    const regexIsLegacyNoteLink = /^(.{20})-(.{20})$/
+    if (regexIsLegacyNoteLink.test(linkHash)) {
+      eventEmitter.emit('list:jump', linkHash.split('-')[1])
+      return
+    }
+
+    const regexIsTagLink = /^:tag:([\w]+)$/
+    if (regexIsTagLink.test(rawHref)) {
+      const tag = rawHref.match(regexIsTagLink)[1]
+      dispatch(push(`/tags/${encodeURIComponent(tag)}`))
+      return
+    }
+
+    // other case
+    this.openExternal(href)
+  }
+
+  openExternal(href) {
+    try {
+      const success =
+        shell.openExternal(href) || shell.openExternal(decodeURI(href))
+      if (!success) console.error('failed to open url ' + href)
+    } catch (e) {
+      // URI Error threw from decodeURI
+      console.error(e)
+    }
+  }
+
+  render() {
+    const { className, style, tabIndex } = this.props
+    return (
+      <iframe
+        className={
+          className != null ? 'MarkdownPreview ' + className : 'MarkdownPreview'
+        }
+        style={style}
+        tabIndex={tabIndex}
+        ref='root'
+      />
+    )
+  }
+}
+
+MarkdownPreview.propTypes = {
+  onClick: PropTypes.func,
+  onDoubleClick: PropTypes.func,
+  onMouseUp: PropTypes.func,
+  onMouseDown: PropTypes.func,
+  onContextMenu: PropTypes.func,
+  className: PropTypes.string,
+  value: PropTypes.string,
+  showCopyNotification: PropTypes.bool,
+  storagePath: PropTypes.string,
+  smartQuotes: PropTypes.bool,
+  smartArrows: PropTypes.bool,
+  breaks: PropTypes.bool
+}
+
+export default connect(
+  null,
+  null,
+  null,
+  { forwardRef: true }
+)(MarkdownPreview)

browser/components/MarkdownSplitEditor.js

@@ -0,0 +1,500 @@
+import React from 'react'
+import CodeEditor from 'browser/components/CodeEditor'
+import MarkdownPreview from 'browser/components/MarkdownPreview'
+import { findStorage } from 'browser/lib/findStorage'
+import _ from 'lodash'
+
+import styles from './MarkdownSplitEditor.styl'
+import CSSModules from 'browser/lib/CSSModules'
+
+class MarkdownSplitEditor extends React.Component {
+  constructor(props) {
+    super(props)
+    this.value = props.value
+    this.focus = () => this.refs.code.focus()
+    this.reload = () => this.refs.code.reload()
+    this.userScroll = props.config.preview.scrollSync
+    this.state = {
+      isSliderFocused: false,
+      codeEditorWidthInPercent: 50,
+      codeEditorHeightInPercent: 50
+    }
+  }
+
+  componentDidUpdate(prevProps) {
+    if (
+      this.props.config.preview.scrollSync !==
+      prevProps.config.preview.scrollSync
+    ) {
+      this.userScroll = this.props.config.preview.scrollSync
+    }
+  }
+
+  handleCursorActivity(editor) {
+    if (this.userScroll) {
+      const previewDoc = _.get(
+        this,
+        'refs.preview.refs.root.contentWindow.document'
+      )
+      const previewTop = _.get(previewDoc, 'body.scrollTop')
+
+      const line = editor.doc.getCursor().line
+      let top
+      if (line === 0) {
+        top = 0
+      } else {
+        const blockElements = previewDoc.querySelectorAll('body [data-line]')
+        const blocks = []
+        for (const block of blockElements) {
+          const l = parseInt(block.getAttribute('data-line'))
+
+          blocks.push({
+            line: l,
+            top: block.offsetTop
+          })
+
+          if (l > line) {
+            break
+          }
+        }
+
+        if (blocks.length === 1) {
+          const block = blockElements[blockElements.length - 1]
+
+          blocks.push({
+            line: editor.doc.size,
+            top: block.offsetTop + block.offsetHeight
+          })
+        }
+
+        const i = blocks.length - 1
+
+        const ratio =
+          (blocks[i].top - blocks[i - 1].top) /
+          (blocks[i].line - blocks[i - 1].line)
+
+        const delta = Math.floor(_.get(previewDoc, 'body.clientHeight') / 3)
+
+        top =
+          blocks[i - 1].top +
+          Math.floor((line - blocks[i - 1].line) * ratio) -
+          delta
+      }
+
+      this.scrollTo(previewTop, top, y =>
+        _.set(previewDoc, 'body.scrollTop', y)
+      )
+    }
+  }
+
+  setValue(value) {
+    this.refs.code.setValue(value)
+  }
+
+  handleOnChange(e) {
+    this.value = this.refs.code.value
+    this.props.onChange(e)
+  }
+
+  handleEditorScroll(e) {
+    if (this.userScroll) {
+      const previewDoc = _.get(
+        this,
+        'refs.preview.refs.root.contentWindow.document'
+      )
+      const codeDoc = _.get(this, 'refs.code.editor.doc')
+
+      const from = codeDoc.cm.coordsChar({ left: 0, top: 0 }).line
+      const to = codeDoc.cm.coordsChar({
+        left: 0,
+        top: codeDoc.cm.display.lastWrapHeight * 1.125
+      }).line
+      const previewTop = _.get(previewDoc, 'body.scrollTop')
+
+      let top
+      if (from === 0) {
+        top = 0
+      } else if (to === codeDoc.lastLine()) {
+        top =
+          _.get(previewDoc, 'body.scrollHeight') -
+          _.get(previewDoc, 'body.clientHeight')
+      } else {
+        const line = from + Math.floor((to - from) / 3)
+
+        const blockElements = previewDoc.querySelectorAll('body [data-line]')
+        const blocks = []
+        for (const block of blockElements) {
+          const l = parseInt(block.getAttribute('data-line'))
+
+          blocks.push({
+            line: l,
+            top: block.offsetTop
+          })
+
+          if (l > line) {
+            break
+          }
+        }
+
+        if (blocks.length === 1) {
+          const block = blockElements[blockElements.length - 1]
+
+          blocks.push({
+            line: codeDoc.size,
+            top: block.offsetTop + block.offsetHeight
+          })
+        }
+
+        const i = blocks.length - 1
+
+        const ratio =
+          (blocks[i].top - blocks[i - 1].top) /
+          (blocks[i].line - blocks[i - 1].line)
+
+        top =
+          blocks[i - 1].top + Math.floor((line - blocks[i - 1].line) * ratio)
+      }
+
+      this.scrollTo(previewTop, top, y =>
+        _.set(previewDoc, 'body.scrollTop', y)
+      )
+    }
+  }
+
+  handlePreviewScroll(e) {
+    if (this.userScroll) {
+      const previewDoc = _.get(
+        this,
+        'refs.preview.refs.root.contentWindow.document'
+      )
+      const codeDoc = _.get(this, 'refs.code.editor.doc')
+
+      const srcTop = _.get(previewDoc, 'body.scrollTop')
+      const editorTop = _.get(codeDoc, 'scrollTop')
+
+      let top
+      if (srcTop === 0) {
+        top = 0
+      } else {
+        const delta = Math.floor(_.get(previewDoc, 'body.clientHeight') / 3)
+        const previewTop = srcTop + delta
+
+        const blockElements = previewDoc.querySelectorAll('body [data-line]')
+        const blocks = []
+        for (const block of blockElements) {
+          const top = block.offsetTop
+
+          blocks.push({
+            line: parseInt(block.getAttribute('data-line')),
+            top
+          })
+
+          if (top > previewTop) {
+            break
+          }
+        }
+
+        if (blocks.length === 1) {
+          const block = blockElements[blockElements.length - 1]
+
+          blocks.push({
+            line: codeDoc.size,
+            top: block.offsetTop + block.offsetHeight
+          })
+        }
+
+        const i = blocks.length - 1
+
+        const from = codeDoc.cm.heightAtLine(blocks[i - 1].line, 'local')
+        const to = codeDoc.cm.heightAtLine(blocks[i].line, 'local')
+
+        const ratio =
+          (previewTop - blocks[i - 1].top) / (blocks[i].top - blocks[i - 1].top)
+
+        top = from + Math.floor((to - from) * ratio) - delta
+      }
+
+      this.scrollTo(editorTop, top, y => codeDoc.cm.scrollTo(0, y))
+    }
+  }
+
+  handleCheckboxClick(e) {
+    e.preventDefault()
+    e.stopPropagation()
+    const idMatch = /checkbox-([0-9]+)/
+    const checkedMatch = /^(\s*>?)*\s*[+\-*] \[x]/i
+    const uncheckedMatch = /^(\s*>?)*\s*[+\-*] \[ ]/
+    const checkReplace = /\[x]/i
+    const uncheckReplace = /\[ ]/
+    if (idMatch.test(e.target.getAttribute('id'))) {
+      const lineIndex =
+        parseInt(e.target.getAttribute('id').match(idMatch)[1], 10) - 1
+      const lines = this.refs.code.value.split('\n')
+
+      const targetLine = lines[lineIndex]
+      let newLine = targetLine
+
+      if (targetLine.match(checkedMatch)) {
+        newLine = targetLine.replace(checkReplace, '[ ]')
+      }
+      if (targetLine.match(uncheckedMatch)) {
+        newLine = targetLine.replace(uncheckReplace, '[x]')
+      }
+      this.refs.code.setLineContent(lineIndex, newLine)
+    }
+  }
+
+  handleMouseMove(e) {
+    if (this.state.isSliderFocused) {
+      const rootRect = this.refs.root.getBoundingClientRect()
+      if (this.props.isStacking) {
+        const rootHeight = rootRect.height
+        const offset = rootRect.top
+        let newCodeEditorHeightInPercent =
+          ((e.pageY - offset) / rootHeight) * 100
+
+        // limit minSize to 10%, maxSize to 90%
+        if (newCodeEditorHeightInPercent <= 10) {
+          newCodeEditorHeightInPercent = 10
+        }
+
+        if (newCodeEditorHeightInPercent >= 90) {
+          newCodeEditorHeightInPercent = 90
+        }
+
+        this.setState({
+          codeEditorHeightInPercent: newCodeEditorHeightInPercent
+        })
+      } else {
+        const rootWidth = rootRect.width
+        const offset = rootRect.left
+        let newCodeEditorWidthInPercent = ((e.pageX - offset) / rootWidth) * 100
+
+        // limit minSize to 10%, maxSize to 90%
+        if (newCodeEditorWidthInPercent <= 10) {
+          newCodeEditorWidthInPercent = 10
+        }
+
+        if (newCodeEditorWidthInPercent >= 90) {
+          newCodeEditorWidthInPercent = 90
+        }
+
+        this.setState({
+          codeEditorWidthInPercent: newCodeEditorWidthInPercent
+        })
+      }
+    }
+  }
+
+  handleMouseUp(e) {
+    e.preventDefault()
+    this.setState({
+      isSliderFocused: false
+    })
+  }
+
+  handleMouseDown(e) {
+    e.preventDefault()
+    this.setState({
+      isSliderFocused: true
+    })
+  }
+
+  scrollTo(from, to, scroller) {
+    const distance = to - from
+    const framerate = 1000 / 60
+    const frames = 20
+    const refractory = frames * framerate
+
+    this.userScroll = false
+
+    let frame = 0
+    let scrollPos, time
+    const timer = setInterval(() => {
+      time = frame / frames
+      scrollPos =
+        time < 0.5
+          ? 2 * time * time // ease in
+          : -1 + (4 - 2 * time) * time // ease out
+
+      scroller(from + scrollPos * distance)
+
+      if (frame >= frames) {
+        clearInterval(timer)
+        setTimeout(() => {
+          this.userScroll = true
+        }, refractory)
+      }
+      frame++
+    }, framerate)
+  }
+
+  render() {
+    const {
+      config,
+      value,
+      storageKey,
+      noteKey,
+      linesHighlighted,
+      getNote,
+      isStacking,
+      RTL
+    } = this.props
+    let storage
+    try {
+      storage = findStorage(storageKey)
+    } catch (e) {
+      return <div />
+    }
+
+    let editorStyle = {}
+    let previewStyle = {}
+    let sliderStyle = {}
+
+    let editorFontSize = parseInt(config.editor.fontSize, 10)
+    if (!(editorFontSize > 0 && editorFontSize < 101)) editorFontSize = 14
+    editorStyle.fontSize = editorFontSize
+
+    let editorIndentSize = parseInt(config.editor.indentSize, 10)
+    if (!(editorStyle.fontSize > 0 && editorStyle.fontSize < 132))
+      editorIndentSize = 4
+    editorStyle.indentSize = editorIndentSize
+
+    editorStyle = Object.assign(
+      editorStyle,
+      isStacking
+        ? {
+            width: '100%',
+            height: `${this.state.codeEditorHeightInPercent}%`
+          }
+        : {
+            width: `${this.state.codeEditorWidthInPercent}%`,
+            height: '100%'
+          }
+    )
+
+    previewStyle = Object.assign(
+      previewStyle,
+      isStacking
+        ? {
+            width: '100%',
+            height: `${100 - this.state.codeEditorHeightInPercent}%`
+          }
+        : {
+            width: `${100 - this.state.codeEditorWidthInPercent}%`,
+            height: '100%'
+          }
+    )
+
+    sliderStyle = Object.assign(
+      sliderStyle,
+      isStacking
+        ? {
+            left: 0,
+            top: `${this.state.codeEditorHeightInPercent}%`
+          }
+        : {
+            left: `${this.state.codeEditorWidthInPercent}%`,
+            top: 0
+          }
+    )
+
+    if (this.props.ignorePreviewPointerEvents || this.state.isSliderFocused)
+      previewStyle.pointerEvents = 'none'
+
+    return (
+      <div
+        styleName='root'
+        ref='root'
+        onMouseMove={e => this.handleMouseMove(e)}
+        onMouseUp={e => this.handleMouseUp(e)}
+      >
+        <CodeEditor
+          ref='code'
+          width={editorStyle.width}
+          height={editorStyle.height}
+          mode='Boost Flavored Markdown'
+          value={value}
+          theme={config.editor.theme}
+          keyMap={config.editor.keyMap}
+          fontFamily={config.editor.fontFamily}
+          fontSize={editorStyle.fontSize}
+          displayLineNumbers={config.editor.displayLineNumbers}
+          lineWrapping
+          matchingPairs={config.editor.matchingPairs}
+          matchingCloseBefore={config.editor.matchingCloseBefore}
+          matchingTriples={config.editor.matchingTriples}
+          explodingPairs={config.editor.explodingPairs}
+          codeBlockMatchingPairs={config.editor.codeBlockMatchingPairs}
+          codeBlockMatchingCloseBefore={
+            config.editor.codeBlockMatchingCloseBefore
+          }
+          codeBlockMatchingTriples={config.editor.codeBlockMatchingTriples}
+          codeBlockExplodingPairs={config.editor.codeBlockExplodingPairs}
+          indentType={config.editor.indentType}
+          indentSize={editorStyle.indentSize}
+          enableRulers={config.editor.enableRulers}
+          rulers={config.editor.rulers}
+          scrollPastEnd={config.editor.scrollPastEnd}
+          fetchUrlTitle={config.editor.fetchUrlTitle}
+          enableTableEditor={config.editor.enableTableEditor}
+          storageKey={storageKey}
+          noteKey={noteKey}
+          linesHighlighted={linesHighlighted}
+          onChange={e => this.handleOnChange(e)}
+          onScroll={e => this.handleEditorScroll(e)}
+          onCursorActivity={e => this.handleCursorActivity(e)}
+          spellCheck={config.editor.spellcheck}
+          enableSmartPaste={config.editor.enableSmartPaste}
+          hotkey={config.hotkey}
+          switchPreview={config.editor.switchPreview}
+          enableMarkdownLint={config.editor.enableMarkdownLint}
+          customMarkdownLintConfig={config.editor.customMarkdownLintConfig}
+          dateFormatISO8601={config.editor.dateFormatISO8601}
+          deleteUnusedAttachments={config.editor.deleteUnusedAttachments}
+          RTL={RTL}
+        />
+        <div
+          styleName={isStacking ? 'slider-hoz' : 'slider'}
+          style={{ left: sliderStyle.left, top: sliderStyle.top }}
+          onMouseDown={e => this.handleMouseDown(e)}
+        >
+          <div styleName='slider-hitbox' />
+        </div>
+        <MarkdownPreview
+          ref='preview'
+          style={previewStyle}
+          theme={config.ui.theme}
+          keyMap={config.editor.keyMap}
+          fontSize={config.preview.fontSize}
+          fontFamily={config.preview.fontFamily}
+          codeBlockTheme={config.preview.codeBlockTheme}
+          codeBlockFontFamily={config.editor.fontFamily}
+          lineNumber={config.preview.lineNumber}
+          indentSize={editorIndentSize}
+          scrollPastEnd={config.preview.scrollPastEnd}
+          smartQuotes={config.preview.smartQuotes}
+          smartArrows={config.preview.smartArrows}
+          breaks={config.preview.breaks}
+          sanitize={config.preview.sanitize}
+          mermaidHTMLLabel={config.preview.mermaidHTMLLabel}
+          tabInde='0'
+          value={value}
+          onCheckboxClick={e => this.handleCheckboxClick(e)}
+          onScroll={e => this.handlePreviewScroll(e)}
+          showCopyNotification={config.ui.showCopyNotification}
+          storagePath={storage.path}
+          noteKey={noteKey}
+          customCSS={config.preview.customCSS}
+          allowCustomCSS={config.preview.allowCustomCSS}
+          lineThroughCheckbox={config.preview.lineThroughCheckbox}
+          getNote={getNote}
+          export={config.export}
+          RTL={RTL}
+        />
+      </div>
+    )
+  }
+}
+
+export default CSSModules(MarkdownSplitEditor, styles)

browser/components/MarkdownSplitEditor.styl

@@ -0,0 +1,38 @@
+.root
+  width 100%
+  height 100%
+  font-size 30px
+  display flex
+  flex-wrap wrap
+  .slider
+    absolute top bottom
+    top -2px
+    width 0
+    z-index 0
+    border-left 1px solid $ui-borderColor
+  .slider-hitbox
+    absolute top bottom left right
+    width 7px
+    left -3px
+    z-index 10
+    cursor col-resize
+  .slider-hoz
+    absolute left right
+    .slider-hitbox
+      absolute left right
+      width: 100%
+      height 7px
+      cursor row-resize
+
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .root
+      .slider
+        border-left 1px solid get-theme-var(theme, 'borderColor')
+
+for theme in 'dark' 'dracula' 'solarized-dark'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/ModalEscButton.js

@@ -0,0 +1,17 @@
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './ModalEscButton.styl'
+
+const ModalEscButton = ({ handleEscButtonClick }) => (
+  <button styleName='escButton' onClick={handleEscButtonClick}>
+    <div styleName='esc-mark'>×</div>
+    <div>esc</div>
+  </button>
+)
+
+ModalEscButton.propTypes = {
+  handleEscButtonClick: PropTypes.func.isRequired
+}
+
+export default CSSModules(ModalEscButton, styles)

browser/components/ModalEscButton.styl

@@ -0,0 +1,16 @@
+.escButton
+  height 50px
+  position absolute
+  background-color transparent
+  color $ui-inactive-text-color
+  border none
+  top 1px
+  right 10px
+  text-align center
+  width top-bar--height
+  height top-bar-height
+
+.esc-mark
+  font-size 28px
+  margin-top -5px
+  margin-bottom -7px

browser/components/NavToggleButton.js

@@ -0,0 +1,29 @@
+/**
+ * @fileoverview Micro component for toggle SideNav
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import styles from './NavToggleButton.styl'
+import CSSModules from 'browser/lib/CSSModules'
+
+/**
+ * @param {boolean} isFolded
+ * @param {Function} handleToggleButtonClick
+ */
+
+const NavToggleButton = ({ isFolded, handleToggleButtonClick }) => (
+  <button styleName='navToggle' onClick={e => handleToggleButtonClick(e)}>
+    {isFolded ? (
+      <i className='fa fa-angle-double-right fa-2x' />
+    ) : (
+      <i className='fa fa-angle-double-left fa-2x' />
+    )}
+  </button>
+)
+
+NavToggleButton.propTypes = {
+  isFolded: PropTypes.bool.isRequired,
+  handleToggleButtonClick: PropTypes.func.isRequired
+}
+
+export default CSSModules(NavToggleButton, styles)

browser/components/NavToggleButton.styl

@@ -0,0 +1,32 @@
+.navToggle
+  navButtonColor()
+  display block
+  position absolute
+  left 5px
+  bottom 5px
+  border-radius 16.5px
+  height 34px
+  width 34px
+  line-height 100%
+  padding 0
+  &:hover
+    border: 1px solid #1EC38B;
+    background-color: alpha(#1EC38B, 30%)
+    border-radius: 50%;
+
+body[data-theme="white"]
+  navWhiteButtonColor()
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .navToggle:hover
+      background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 20%)
+      border 1px solid get-theme-var(theme, 'button--active-backgroundColor')
+      transition 0.15s
+      color get-theme-var(theme, 'text-color')
+
+for theme in 'dark' 'dracula' 'solarized-dark'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/NoteItem.js

@@ -0,0 +1,184 @@
+/**
+ * @fileoverview Note item component.
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import { isArray, sortBy } from 'lodash'
+import invertColor from 'invert-color'
+import Emoji from 'react-emoji-render'
+import CSSModules from 'browser/lib/CSSModules'
+import { getTodoStatus } from 'browser/lib/getTodoStatus'
+import styles from './NoteItem.styl'
+import TodoProcess from './TodoProcess'
+import i18n from 'browser/lib/i18n'
+
+/**
+ * @description Tag element component.
+ * @param {string} tagName
+ * @param {string} color
+ * @return {React.Component}
+ */
+const TagElement = ({ tagName, color }) => {
+  const style = {}
+  if (color) {
+    style.backgroundColor = color
+    style.color = invertColor(color, {
+      black: '#222',
+      white: '#f1f1f1',
+      threshold: 0.3
+    })
+  }
+  return (
+    <span styleName='item-bottom-tagList-item' key={tagName} style={style}>
+      #{tagName}
+    </span>
+  )
+}
+
+/**
+ * @description Tag element list component.
+ * @param {Array|null} tags
+ * @param {boolean} showTagsAlphabetically
+ * @param {Object} coloredTags
+ * @return {React.Component}
+ */
+const TagElementList = (tags, showTagsAlphabetically, coloredTags) => {
+  if (!isArray(tags)) {
+    return []
+  }
+
+  if (showTagsAlphabetically) {
+    return sortBy(tags).map(tag =>
+      TagElement({ tagName: tag, color: coloredTags[tag] })
+    )
+  } else {
+    return tags.map(tag =>
+      TagElement({ tagName: tag, color: coloredTags[tag] })
+    )
+  }
+}
+
+/**
+ * @description Note item component when using normal display mode.
+ * @param {boolean} isActive
+ * @param {Object} note
+ * @param {Function} handleNoteClick
+ * @param {Function} handleNoteContextMenu
+ * @param {Function} handleDragStart
+ * @param {Object} coloredTags
+ * @param {string} dateDisplay
+ */
+const NoteItem = ({
+  isActive,
+  note,
+  dateDisplay,
+  handleNoteClick,
+  handleNoteContextMenu,
+  handleDragStart,
+  pathname,
+  storageName,
+  folderName,
+  viewType,
+  showTagsAlphabetically,
+  coloredTags
+}) => (
+  <div
+    styleName={isActive ? 'item--active' : 'item'}
+    key={note.key}
+    onClick={e => handleNoteClick(e, note.key)}
+    onContextMenu={e => handleNoteContextMenu(e, note.key)}
+    onDragStart={e => handleDragStart(e, note)}
+    draggable='true'
+  >
+    <div styleName='item-wrapper'>
+      {note.type === 'SNIPPET_NOTE' ? (
+        <i styleName='item-title-icon' className='fa fa-fw fa-code' />
+      ) : (
+        <i styleName='item-title-icon' className='fa fa-fw fa-file-text-o' />
+      )}
+      <div styleName='item-title'>
+        {note.title.trim().length > 0 ? (
+          <Emoji text={note.title} />
+        ) : (
+          <span styleName='item-title-empty'>{i18n.__('Empty note')}</span>
+        )}
+      </div>
+      <div styleName='item-middle'>
+        <div styleName='item-middle-time'>{dateDisplay}</div>
+        <div styleName='item-middle-app-meta'>
+          <div
+            title={
+              viewType === 'ALL'
+                ? storageName
+                : viewType === 'STORAGE'
+                ? folderName
+                : null
+            }
+            styleName='item-middle-app-meta-label'
+          >
+            {viewType === 'ALL' && storageName}
+            {viewType === 'STORAGE' && folderName}
+          </div>
+        </div>
+      </div>
+      <div styleName='item-bottom'>
+        <div styleName='item-bottom-tagList'>
+          {note.tags.length > 0 ? (
+            TagElementList(note.tags, showTagsAlphabetically, coloredTags)
+          ) : (
+            <span
+              style={{ fontStyle: 'italic', opacity: 0.5 }}
+              styleName='item-bottom-tagList-empty'
+            >
+              {i18n.__('No tags')}
+            </span>
+          )}
+        </div>
+        <div>
+          {note.isStarred ? (
+            <img
+              styleName='item-star'
+              src='../resources/icon/icon-starred.svg'
+            />
+          ) : (
+            ''
+          )}
+          {note.isPinned && !pathname.match(/\/starred|\/trash/) ? (
+            <i styleName='item-pin' className='fa fa-thumb-tack' />
+          ) : (
+            ''
+          )}
+          {note.type === 'MARKDOWN_NOTE' ? (
+            <TodoProcess todoStatus={getTodoStatus(note.content)} />
+          ) : (
+            ''
+          )}
+        </div>
+      </div>
+    </div>
+  </div>
+)
+
+NoteItem.propTypes = {
+  isActive: PropTypes.bool.isRequired,
+  dateDisplay: PropTypes.string.isRequired,
+  coloredTags: PropTypes.object,
+  note: PropTypes.shape({
+    storage: PropTypes.string.isRequired,
+    key: PropTypes.string.isRequired,
+    type: PropTypes.string.isRequired,
+    title: PropTypes.string.isrequired,
+    tags: PropTypes.array,
+    isStarred: PropTypes.bool.isRequired,
+    isTrashed: PropTypes.bool.isRequired,
+    blog: PropTypes.shape({
+      blogLink: PropTypes.string,
+      blogId: PropTypes.number
+    })
+  }),
+  handleNoteClick: PropTypes.func.isRequired,
+  handleNoteContextMenu: PropTypes.func.isRequired,
+  handleDragStart: PropTypes.func.isRequired
+}
+
+export default CSSModules(NoteItem, styles)

browser/components/NoteItem.styl

@@ -0,0 +1,403 @@
+$control-height = 30px
+
+.root
+  absolute left bottom
+  top $topBar-height - 1
+  background-color $ui-noteList-backgroundColor
+
+.item
+  position relative
+  padding 0 20px
+  user-select none
+  cursor pointer
+  background-color $ui-noteList-backgroundColor
+  transition 0.2s
+  &:hover
+    background-color alpha($ui-button--active-backgroundColor, 20%)
+    .item-title
+    .item-title-icon
+    .item-bottom-time
+      transition 0.15s
+      color $ui-text-color
+    .item-bottom-tagList-item
+      background-color alpha(white, 0.6)
+      color $ui-text-color
+    .item-star
+      color $ui-favorite-star-button-color
+  &:active
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color $ui-text-color
+    .item-title
+    .item-title-icon
+    .item-bottom-time
+      transition 0.15s
+      color $ui-text-color
+    .item-bottom-tagList-item
+      background-color alpha(white, 0.6)
+      color $ui-text-color
+
+.item-wrapper
+  padding 15px 0
+  border-bottom $ui-border
+  position relative
+
+.item--active
+  @extend .item
+  background-color alpha($ui-button--active-backgroundColor, 60%)
+  color $ui-text-color
+  .item-title
+  .item-title-empty
+  .item-bottom-tagList-empty
+  .item-bottom-time
+  .item-title-icon
+    color $ui-text-color
+  .item-bottom-tagList-item
+    background-color alpha(white, 0.6)
+    color $ui-text-color
+  .item-wrapper
+    border-color transparent
+  .item-star
+    color $ui-favorite-star-button-color
+  &:hover
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color #e74c3c
+    .menu-button-label
+      color $ui-text-color
+  &:active, &:active:hover
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color #e74c3c
+    .menu-button-label
+      color $ui-text-color
+
+.item-title-icon
+  position relative
+  font-size 12px
+  color $ui-inactive-text-color
+  top 2px
+
+.item-title
+  font-size 15px
+  font-weight 700
+  position relative
+  top -12px
+  left 20px
+  padding 0px 15px 0px 0px
+  margin-bottom 4px
+  overflow ellipsis
+  color $ui-inactive-text-color
+
+.item-title-empty
+  font-weight normal
+  color $ui-inactive-text-color
+
+.item-middle
+  font-size 13px
+  padding-left 2px
+  padding-bottom 2px
+
+.item-middle-time
+  color $ui-inactive-text-color
+  display inline-block
+
+.item-middle-app-meta
+  float right
+  .item-middle-app-meta-label
+    opacity 0.4
+    color $ui-inactive-text-color
+    padding 0 3px
+    white-space nowrap
+    text-overflow ellipsis
+    overflow hidden
+    max-width 200px
+
+.item-bottom
+  position relative
+  bottom 0px
+  margin-top 10px
+  font-size 12px
+  line-height 20px
+  overflow ellipsis
+  display block
+
+.item-bottom-tagList
+  flex 1
+  overflow ellipsis
+  line-height 25px
+  padding-left 2px
+  margin-right 40px
+
+.item-bottom-tagList-item
+  font-size 11px
+  margin-right 8px
+  padding 0
+  box-sizing border-box
+  border-radius 2px
+  padding 4px
+  vertical-align middle
+  background-color white
+  color $ui-inactive-text-color
+
+.item-bottom-time
+  color $ui-inactive-text-color
+  font-size 13px
+  padding-left 2px
+  padding-bottom 2px
+
+.item-star
+  position absolute
+  right 2px
+  top 5px
+  color alpha($ui-favorite-star-button-color, 60%)
+  font-size 12px
+  padding 0
+  border-radius 17px
+
+.item-pin
+  position absolute
+  right 25px
+  top 7px
+  color #E54D42
+  font-size 14px
+  padding 0
+  border-radius 17px
+
+body[data-theme="white"]
+  .item
+    background-color $ui-white-noteList-backgroundColor
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+    &:active
+      background-color $ui-button--active-backgroundColor
+
+  .item--active
+    @extend .item
+    background-color $ui-button--active-backgroundColor
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+
+body[data-theme="dark"]
+  .root
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-noteList-backgroundColor
+
+  .item
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-noteList-backgroundColor
+    &:hover
+      transition 0.15s
+      background-color alpha($ui-dark-button--active-backgroundColor, 20%)
+      color $ui-dark-text-color
+      .item-title
+      .item-title-icon
+      .item-bottom-time
+        transition 0.15s
+        color $ui-dark-text-color
+      .item-bottom-tagList-item
+        transition 0.15s
+        background-color alpha($ui-dark-tagList-backgroundColor, 20%)
+        color $ui-dark-text-color
+    &:active
+      transition 0.15s
+      background-color $ui-dark-button--active-backgroundColor
+      color $ui-dark-text-color
+      .item-title
+      .item-title-icon
+      .item-bottom-time
+        transition 0.15s
+        color $ui-dark-text-color
+      .item-bottom-tagList-item
+        transition 0.15s
+        background-color alpha($ui-dark-tagList-backgroundColor, 10%)
+        color $ui-dark-text-color
+
+  .item-wrapper
+    border-color alpha($ui-dark-button--active-backgroundColor, 60%)
+
+  .item--active
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-button--active-backgroundColor
+    .item-wrapper
+      border-color transparent
+    .item-title
+    .item-title-icon
+    .item-bottom-time
+      color $ui-dark-text-color
+    .item-bottom-tagList-item
+      background-color alpha($ui-dark-tagList-backgroundColor, 10%)
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 60%)
+      color $ui-dark-button--hover-color
+      .item-bottom-tagList-item
+        background-color alpha($ui-dark-tagList-backgroundColor, 20%)
+
+  .item-title
+    color $ui-inactive-text-color
+
+  .item-title-icon
+    color $ui-inactive-text-color
+
+  .item-title-empty
+    color $ui-inactive-text-color
+
+  .item-bottom-tagList-item
+    background-color alpha($ui-dark-button--active-backgroundColor, 40%)
+    color $ui-inactive-text-color
+
+  .item-bottom-tagList-empty
+    color $ui-inactive-text-color
+    vertical-align middle
+
+
+body[data-theme="solarized-dark"]
+  .root
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-noteList-backgroundColor
+
+  .item
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-noteList-backgroundColor
+    &:hover
+      transition 0.15s
+      // background-color alpha($ui-solarized-dark-noteList-backgroundColor, 20%)
+      color $ui-solarized-dark-text-color
+      .item-title
+      .item-title-icon
+      .item-bottom-time
+        transition 0.15s
+        color $ui-solarized-dark-text-color
+      .item-bottom-tagList-item
+        transition 0.15s
+        background-color alpha($ui-solarized-dark-noteList-backgroundColor, 20%)
+        color $ui-solarized-dark-text-color
+    &:active
+      transition 0.15s
+      background-color $ui-solarized-dark-noteList-backgroundColor
+      color $ui-solarized-dark-text-color
+      .item-title
+      .item-title-icon
+      .item-bottom-time
+        transition 0.15s
+        color $ui-solarized-dark-text-color
+      .item-bottom-tagList-item
+        transition 0.15s
+        background-color alpha($ui-solarized-dark-noteList-backgroundColor, 10%)
+        color $ui-solarized-dark-text-color
+
+  .item-wrapper
+    border-color alpha($ui-solarized-dark-button--active-backgroundColor, 60%)
+
+  .item--active
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-button-backgroundColor
+    .item-wrapper
+      border-color transparent
+    .item-title
+    .item-title-icon
+    .item-bottom-time
+      color $ui-solarized-dark-text-color
+    .item-bottom-tagList-item
+      background-color alpha(white, 10%)
+      color $ui-solarized-dark-text-color
+    &:hover
+      // background-color alpha($ui-solarized-dark-button--active-backgroundColor, 60%)
+      color #c0392b
+      .item-bottom-tagList-item
+        background-color alpha(#fff, 20%)
+
+  .item-title
+    color $ui-inactive-text-color
+
+  .item-title-icon
+    color $ui-inactive-text-color
+
+  .item-title-empty
+    color $ui-inactive-text-color
+
+  .item-bottom-tagList-item
+    background-color alpha($ui-dark-button--active-backgroundColor, 40%)
+    color $ui-inactive-text-color
+
+  .item-bottom-tagList-empty
+    color $ui-inactive-text-color
+    vertical-align middle
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .root
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'noteList-backgroundColor')
+
+    .item
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'noteList-backgroundColor')
+      &:hover
+        transition 0.15s
+        // background-color alpha(get-theme-var(theme, 'noteList-backgroundColor'), 20%)
+        color get-theme-var(theme, 'text-color')
+        .item-title
+        .item-title-icon
+        .item-bottom-time
+          transition 0.15s
+          color get-theme-var(theme, 'text-color')
+        .item-bottom-tagList-item
+          transition 0.15s
+          background-color alpha(get-theme-var(theme, 'noteList-backgroundColor'), 20%)
+          color get-theme-var(theme, 'text-color')
+      &:active
+        transition 0.15s
+        background-color get-theme-var(theme, 'noteList-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+        .item-title
+        .item-title-icon
+        .item-bottom-time
+          transition 0.15s
+          color get-theme-var(theme, 'text-color')
+        .item-bottom-tagList-item
+          transition 0.15s
+          background-color alpha(get-theme-var(theme, 'noteList-backgroundColor'), 10%)
+          color get-theme-var(theme, 'text-color')
+
+    .item-wrapper
+      border-color alpha(get-theme-var(theme, 'button-backgroundColor'), 60%)
+
+    .item--active
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      .item-wrapper
+        border-color transparent
+      .item-title
+      .item-title-icon
+      .item-bottom-time
+        color get-theme-var(theme, 'active-color')
+      .item-bottom-tagList-item
+        background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 10%)
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        // background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 60%)
+        color get-theme-var(theme, 'button--hover-color')
+        .item-bottom-tagList-item
+          background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 20%)
+
+    .item-title
+      color $ui-inactive-text-color
+
+    .item-title-icon
+      color $ui-inactive-text-color
+
+    .item-title-empty
+      color $ui-inactive-text-color
+
+    .item-bottom-tagList-item
+      background-color alpha($ui-dark-button--active-backgroundColor, 40%)
+      color $ui-inactive-text-color
+
+    .item-bottom-tagList-empty
+      color $ui-inactive-text-color
+      vertical-align middle
+
+for theme in 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/NoteItemSimple.js

@@ -0,0 +1,77 @@
+/**
+ * @fileoverview Note item component with simple display mode.
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './NoteItemSimple.styl'
+import i18n from 'browser/lib/i18n'
+
+/**
+ * @description Note item component when using simple display mode.
+ * @param {boolean} isActive
+ * @param {Object} note
+ * @param {Function} handleNoteClick
+ * @param {Function} handleNoteContextMenu
+ * @param {Function} handleDragStart
+ */
+const NoteItemSimple = ({
+  isActive,
+  isAllNotesView,
+  note,
+  handleNoteClick,
+  handleNoteContextMenu,
+  handleDragStart,
+  pathname,
+  storage
+}) => (
+  <div
+    styleName={isActive ? 'item-simple--active' : 'item-simple'}
+    key={note.key}
+    onClick={e => handleNoteClick(e, note.key)}
+    onContextMenu={e => handleNoteContextMenu(e, note.key)}
+    onDragStart={e => handleDragStart(e, note)}
+    draggable='true'
+  >
+    <div styleName='item-simple-title'>
+      {note.type === 'SNIPPET_NOTE' ? (
+        <i styleName='item-simple-title-icon' className='fa fa-fw fa-code' />
+      ) : (
+        <i
+          styleName='item-simple-title-icon'
+          className='fa fa-fw fa-file-text-o'
+        />
+      )}
+      {note.isPinned && !pathname.match(/\/starred|\/trash/) ? (
+        <i styleName='item-pin' className='fa fa-thumb-tack' />
+      ) : (
+        ''
+      )}
+      {note.title.trim().length > 0 ? (
+        note.title
+      ) : (
+        <span styleName='item-simple-title-empty'>{i18n.__('Empty note')}</span>
+      )}
+      {isAllNotesView && (
+        <div styleName='item-simple-right'>
+          <span styleName='item-simple-right-storageName'>{storage.name}</span>
+        </div>
+      )}
+    </div>
+  </div>
+)
+
+NoteItemSimple.propTypes = {
+  isActive: PropTypes.bool.isRequired,
+  note: PropTypes.shape({
+    storage: PropTypes.string.isRequired,
+    key: PropTypes.string.isRequired,
+    type: PropTypes.string.isRequired,
+    title: PropTypes.string.isrequired
+  }),
+  handleNoteClick: PropTypes.func.isRequired,
+  handleNoteContextMenu: PropTypes.func.isRequired,
+  handleDragStart: PropTypes.func.isRequired
+}
+
+export default CSSModules(NoteItemSimple, styles)

browser/components/NoteItemSimple.styl

@@ -0,0 +1,295 @@
+$control-height = 30px
+
+.root
+  absolute left bottom
+  top $topBar-height - 1
+  background-color $ui-noteList-backgroundColor
+
+.item-simple
+  position relative
+  padding 0 20px
+  user-select none
+  cursor pointer
+  background-color $ui-noteList-backgroundColor
+  transition 0.2s
+  &:hover
+    background-color alpha($ui-button--active-backgroundColor, 20%)
+    .item-simple-title
+    .item-simple-title-empty
+    .item-simple-title-icon
+      color $ui-text-color
+  &:active
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color $ui-text-color
+    .item-simple-title
+    .item-simple-title-empty
+    .item-simple-title-icon
+      color $ui-text-color
+
+.item-simple--active
+  @extend .item-simple
+  background-color alpha($ui-button--active-backgroundColor, 60%)
+  color $ui-text-color
+  .item-simple-title
+  .item-simple-title-empty
+    border-color transparent
+    color $ui-text-color
+  .item-simple-title-icon
+    color $ui-text-color
+  &:hover
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color #e74c3c
+    .menu-button-label
+      color $ui-text-color
+  &:active, &:active:hover
+    background-color alpha($ui-button--active-backgroundColor, 40%)
+    color #e74c3c
+    .menu-button-label
+      color $ui-text-color
+
+.item-simple-title
+  font-size 13px
+  height 40px
+  padding-right 20px
+  box-sizing border-box
+  line-height 24px
+  padding-top 8px
+  overflow ellipsis
+  color $ui-inactive-text-color
+  border-bottom $ui-border
+  position relative
+
+.item-simple-title-icon
+  font-size 12px
+  color $ui-inactive-text-color
+  padding-right 6px
+
+.item-simple-title-empty
+  font-weight normal
+  color $ui-inactive-text-color
+
+.item-pin
+  position absolute
+  right 0px
+  top 12px
+  color #E54D42
+  font-size 14px
+  padding 0
+  border-radius 17px
+
+body[data-theme="white"]
+  .item-simple
+    background-color $ui-white-noteList-backgroundColor
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+    &:active
+      background-color $ui-button--active-backgroundColor
+
+  .item-simple--active
+    @extend .item-simple
+    background-color $ui-button--active-backgroundColor
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+
+body[data-theme="dark"]
+  .root
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-noteList-backgroundColor
+
+  .item-simple
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-noteList-backgroundColor
+    &:hover
+      transition 0.15s
+      background-color alpha($ui-dark-button--active-backgroundColor, 20%)
+      color $ui-dark-text-color
+      .item-simple-title
+      .item-simple-title-empty
+      .item-simple-title-icon
+      .item-simple-bottom-time
+        transition 0.15s
+        color $ui-dark-text-color
+      .item-simple-bottom-tagList-item
+        transition 0.15s
+        background-color alpha(#fff, 20%)
+        color $ui-dark-text-color
+    &:active
+      transition 0.15s
+      background-color $ui-dark-button--active-backgroundColor
+      color $ui-dark-text-color
+      .item-simple-title
+      .item-simple-title-empty
+      .item-simple-title-icon
+      .item-simple-bottom-time
+        transition 0.15s
+        color $ui-dark-text-color
+      .item-simple-bottom-tagList-item
+        transition 0.15s
+        background-color alpha(white, 10%)
+        color $ui-dark-text-color
+
+  .item-simple--active
+    border-color $ui-dark-borderColor
+    background-color $ui-dark-button--active-backgroundColor
+    .item-simple-wrapper
+      border-color transparent
+    .item-simple-title
+    .item-simple-title-empty
+    .item-simple-title-icon
+    .item-simple-bottom-time
+      color $ui-dark-text-color
+    .item-simple-bottom-tagList-item
+      background-color alpha(white, 10%)
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 60%)
+      color #c0392b
+      .item-simple-bottom-tagList-item
+        background-color alpha(#fff, 20%)
+
+  .item-simple-title
+    color $ui-inactive-text-color
+    border-color alpha($ui-dark-button--active-backgroundColor, 60%)
+
+  .item-simple-title-icon
+    color $ui-darkinactive-text-color
+
+  .item-simple-title-empty
+    color $ui-dark-inactive-text-color
+
+
+body[data-theme="solarized-dark"]
+  .root
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-noteList-backgroundColor
+
+  .item-simple
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-noteList-backgroundColor
+    &:hover
+      transition 0.15s
+      background-color alpha($ui-dark-button--active-backgroundColor, 60%)
+      color $ui-solarized-dark-text-color
+      .item-simple-title
+      .item-simple-title-empty
+      .item-simple-title-icon
+      .item-simple-bottom-time
+        transition 0.15s
+        color $ui-solarized-dark-text-color
+      .item-simple-bottom-tagList-item
+        transition 0.15s
+        background-color alpha(#fff, 20%)
+        color $ui-solarized-dark-text-color
+    &:active
+      transition 0.15s
+      // background-color $ui-solarized-dark-button--active-backgroundColor
+      color $ui-dark-text-color
+      .item-simple-title
+      .item-simple-title-empty
+      .item-simple-title-icon
+      .item-simple-bottom-time
+        transition 0.15s
+        color $ui-solarized-dark-text-color
+      .item-simple-bottom-tagList-item
+        transition 0.15s
+        background-color alpha(white, 10%)
+        color $ui-solarized-dark-text-color
+
+  .item-simple--active
+    border-color $ui-solarized-dark-borderColor
+    background-color $ui-solarized-dark-tag-backgroundColor
+    .item-simple-wrapper
+      border-color transparent
+    .item-simple-title
+    .item-simple-title-empty
+    .item-simple-title-icon
+       color $ui-dark-text-color
+    .item-simple-bottom-time
+      color $ui-solarized-dark-text-color
+    .item-simple-bottom-tagList-item
+      background-color alpha(white, 10%)
+      color $ui-solarized-dark-text-color
+    &:hover
+      // background-color alpha($ui-dark-button--active-backgroundColor, 60%)
+      color #c0392b
+      .item-simple-bottom-tagList-item
+        background-color alpha(#fff, 20%)
+  .item-simple-title
+    color $ui-dark-text-color
+    border-bottom $ui-dark-borderColor
+  .item-simple-right
+    float right
+    .item-simple-right-storageName
+      padding-left 4px
+      opacity 0.4
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .root
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'noteList-backgroundColor')
+
+    .item-simple
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'noteList-backgroundColor')
+      &:hover
+        transition 0.15s
+        background-color alpha(get-theme-var(theme, 'button-backgroundColor'), 60%)
+        color get-theme-var(theme, 'text-color')
+        .item-simple-title
+        .item-simple-title-empty
+        .item-simple-title-icon
+        .item-simple-bottom-time
+          transition 0.15s
+          color get-theme-var(theme, 'text-color')
+        .item-simple-bottom-tagList-item
+          transition 0.15s
+          background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 20%)
+          color get-theme-var(theme, 'text-color')
+      &:active
+        transition 0.15s
+        background-color get-theme-var(theme, 'button--active-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+        .item-simple-title
+        .item-simple-title-empty
+        .item-simple-title-icon
+        .item-simple-bottom-time
+          transition 0.15s
+          color get-theme-var(theme, 'text-color')
+        .item-simple-bottom-tagList-item
+          transition 0.15s
+          background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 10%)
+          color get-theme-var(theme, 'text-color')
+
+    .item-simple--active
+      border-color get-theme-var(theme, 'borderColor')
+      background-color get-theme-var(theme, 'button--active-backgroundColor')
+      .item-simple-wrapper
+        border-color transparent
+      .item-simple-title
+      .item-simple-title-empty
+      .item-simple-title-icon
+      .item-simple-bottom-time
+        color get-theme-var(theme, 'text-color')
+      .item-simple-bottom-tagList-item
+        background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 10%)
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        // background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 60%)
+        color #c0392b
+        .item-simple-bottom-tagList-item
+          background-color alpha(get-theme-var(theme, 'tagList-backgroundColor'), 20%)
+    .item-simple-title
+      color $ui-dark-text-color
+      border-bottom $ui-dark-borderColor
+    .item-simple-right
+      float right
+      .item-simple-right-storageName
+        padding-left 4px
+        opacity 0.4
+
+for theme in 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/RealtimeNotification.js

@@ -0,0 +1,63 @@
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './RealtimeNotification.styl'
+
+const electron = require('electron')
+const { shell } = electron
+
+class RealtimeNotification extends React.Component {
+  constructor(props) {
+    super(props)
+
+    this.state = {
+      notifications: []
+    }
+  }
+
+  componentDidMount() {
+    this.fetchNotifications()
+  }
+
+  fetchNotifications() {
+    const notificationsUrl =
+      'https://raw.githubusercontent.com/BoostIO/notification/master/notification.json'
+    fetch(notificationsUrl)
+      .then(response => {
+        return response.json()
+      })
+      .then(json => {
+        this.setState({ notifications: json.notifications })
+      })
+  }
+
+  handleLinkClick(e) {
+    shell.openExternal(e.currentTarget.href)
+    e.preventDefault()
+  }
+
+  render() {
+    const { notifications } = this.state
+    const link =
+      notifications.length > 0 ? (
+        <a
+          styleName='notification-link'
+          href={notifications[0].linkUrl}
+          onClick={e => this.handleLinkClick(e)}
+        >
+          Info: {notifications[0].text}
+        </a>
+      ) : (
+        ''
+      )
+
+    return (
+      <div styleName='notification-area' style={this.props.style}>
+        {link}
+      </div>
+    )
+  }
+}
+
+RealtimeNotification.propTypes = {}
+
+export default CSSModules(RealtimeNotification, styles)

browser/components/RealtimeNotification.styl

@@ -0,0 +1,49 @@
+.notification-area
+  z-index 1000
+  font-size 12px
+  position: relative
+  top: 12px
+  background-color none
+
+.notification-link
+  position absolute
+  text-decoration none
+  color #282A36
+  font-size 14px
+  border 1px solid #6FA8E6
+  background-color alpha(#6FA8E6, 0.2)
+  padding 5px 12px
+  border-radius 2px
+  transition 0.2s
+  &:hover
+    color #1378BD
+
+body[data-theme="dark"]
+  .notification-area
+    background-color none
+
+  .notification-link
+    color #fff
+    border 1px solid alpha(#5CB85C, 0.6)
+    background-color alpha(#5CB85C, 0.2)
+    transition 0.2s
+    &:hover
+      color #5CB85C
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .notification-area
+      background-color none
+
+    .notification-link
+      color get-theme-var(theme, 'text-color')
+      border none
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      &:hover
+        color get-theme-var(theme, 'button--hover-color')
+
+for theme in 'solarized-dark' 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/SideNavFilter.js

@@ -0,0 +1,96 @@
+/**
+ * @fileoverview Filter for all notes.
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './SideNavFilter.styl'
+import i18n from 'browser/lib/i18n'
+
+/**
+ * @param {boolean} isFolded
+ * @param {boolean} isHomeActive
+ * @param {Function} handleAllNotesButtonClick
+ * @param {boolean} isStarredActive
+ * @param {Function} handleStarredButtonClick
+ * @return {React.Component}
+ */
+const SideNavFilter = ({
+  isFolded,
+  isHomeActive,
+  handleAllNotesButtonClick,
+  isStarredActive,
+  handleStarredButtonClick,
+  isTrashedActive,
+  handleTrashedButtonClick,
+  counterDelNote,
+  counterTotalNote,
+  counterStarredNote,
+  handleFilterButtonContextMenu
+}) => (
+  <div styleName={isFolded ? 'menu--folded' : 'menu'}>
+    <button
+      styleName={isHomeActive ? 'menu-button--active' : 'menu-button'}
+      onClick={handleAllNotesButtonClick}
+    >
+      <div styleName='iconWrap'>
+        <img
+          src={
+            isHomeActive
+              ? '../resources/icon/icon-all-active.svg'
+              : '../resources/icon/icon-all.svg'
+          }
+        />
+      </div>
+      <span styleName='menu-button-label'>{i18n.__('All Notes')}</span>
+      <span styleName='counters'>{counterTotalNote}</span>
+    </button>
+
+    <button
+      styleName={isStarredActive ? 'menu-button-star--active' : 'menu-button'}
+      onClick={handleStarredButtonClick}
+    >
+      <div styleName='iconWrap'>
+        <img
+          src={
+            isStarredActive
+              ? '../resources/icon/icon-star-active.svg'
+              : '../resources/icon/icon-star-sidenav.svg'
+          }
+        />
+      </div>
+      <span styleName='menu-button-label'>{i18n.__('Starred')}</span>
+      <span styleName='counters'>{counterStarredNote}</span>
+    </button>
+
+    <button
+      styleName={isTrashedActive ? 'menu-button-trash--active' : 'menu-button'}
+      onClick={handleTrashedButtonClick}
+      onContextMenu={handleFilterButtonContextMenu}
+    >
+      <div styleName='iconWrap'>
+        <img
+          src={
+            isTrashedActive
+              ? '../resources/icon/icon-trash-active.svg'
+              : '../resources/icon/icon-trash-sidenav.svg'
+          }
+        />
+      </div>
+      <span styleName='menu-button-label'>{i18n.__('Trash')}</span>
+      <span styleName='counters'>{counterDelNote}</span>
+    </button>
+  </div>
+)
+
+SideNavFilter.propTypes = {
+  isFolded: PropTypes.bool,
+  isHomeActive: PropTypes.bool.isRequired,
+  handleAllNotesButtonClick: PropTypes.func.isRequired,
+  isStarredActive: PropTypes.bool.isRequired,
+  isTrashedActive: PropTypes.bool.isRequired,
+  handleStarredButtonClick: PropTypes.func.isRequired,
+  handleTrashedButtonClick: PropTypes.func.isRequired
+}
+
+export default CSSModules(SideNavFilter, styles)

browser/components/SideNavFilter.styl

@@ -0,0 +1,230 @@
+.menu
+  margin-bottom 20px
+
+.menu-button
+  navButtonColor()
+  height 36px
+  padding 0 15px 0 20px
+  font-size 14px
+  width 100%
+  text-align left
+  overflow ellipsis
+  display flex
+  align-items center
+  &:hover, &:active, &:active:hover
+    color #1EC38B
+    background-color alpha($ui-button-default--active-backgroundColor, 20%)
+
+.iconWrap
+  width 20px
+  text-align center
+
+.counters
+  float right
+  color $ui-inactive-text-color
+
+.menu-button--active
+  @extend .menu-button
+  SideNavFilter()
+  color #1EC38B
+  background-color alpha($ui-button-default--active-backgroundColor, 20%)
+  .menu-button-label, .counters
+    color #1EC38B
+  &:hover
+    color #1EC38B
+
+.menu-button-star--active
+  @extend .menu-button
+  SideNavFilter()
+  color #1EC38B
+  background-color alpha($ui-button-default--active-backgroundColor, 20%)
+  .menu-button-label, .counters
+    color #1EC38B
+
+.menu-button-trash--active
+  @extend .menu-button
+  SideNavFilter()
+  color #1EC38B
+  background-color alpha($ui-button-default--active-backgroundColor, 20%)
+  .menu-button-label, .counters
+    color #1EC38B
+
+.menu-button-label
+  margin-left 10px
+  flex 1
+
+.menu--folded
+  @extend .menu
+  .menu-button, .menu-button--active, .menu-button-star--active, .menu-button-trash--active
+    text-align center
+    padding 0 12px
+    &:hover .menu-button-label
+      transition opacity 0.15s
+      opacity 1
+      color $ui-tooltip-text-color
+      background-color $ui-tooltip-backgroundColor
+
+
+  .menu-button-label
+    position fixed
+    display inline-block
+    height 36px
+    left 44px
+    padding 0 10px
+    margin-left 0
+    overflow ellipsis
+    z-index 10
+    line-height 32px
+    border-top-right-radius 2px
+    border-bottom-right-radius 2px
+    pointer-events none
+    opacity 0
+    font-size 13px
+  .counters
+    display none
+
+body[data-theme="white"]
+  .menu-button
+    navWhiteButtonColor()
+
+  .counters
+    color $ui-inactive-text-color
+
+  .menu-button--active
+    color #e74c3c
+    background-color $ui-button--active-backgroundColor
+    .menu-button-label
+      color $ui-text-color
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #e74c3c
+      .menu-button-label
+        color $ui-text-color
+    &:active, &:active:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #e74c3c
+      .menu-button-label
+        color $ui-text-color
+
+  .menu-button-star--active
+    color #F9BF3B
+    background-color $ui-button--active-backgroundColor
+    .menu-button-label
+      color $ui-text-color
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #F9BF3B
+      .menu-button-label
+        color $ui-text-color
+    &:active, &:active:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #F9BF3B
+      .menu-button-label
+        color $ui-text-color
+
+  .menu-button-trash--active
+    color #5D9E36
+    background-color $ui-button--active-backgroundColor
+    .menu-button-label
+      color $ui-text-color
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #5D9E36
+      .menu-button-label
+        color $ui-text-color
+    &:active, &:active:hover
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+      color #5D9E36
+      .menu-button-label
+        color $ui-text-color
+
+body[data-theme="dark"]
+  .menu-button
+    &:active
+      background-color $ui-dark-button--active-backgroundColor
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 20%)
+      color $ui-dark-text-color
+
+  .menu-button--active
+    color #c0392b
+    background-color $ui-dark-button--active-backgroundColor
+    .menu-button-label
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 50%)
+      color #c0392b
+      .menu-button-label
+        color $ui-dark-text-color
+
+  .menu-button-star--active
+    color $ui-favorite-star-button-color
+    background-color $ui-dark-button--active-backgroundColor
+    .menu-button-label
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 50%)
+      color $ui-favorite-star-button-color
+      .menu-button-label
+        color $ui-dark-text-color
+
+  .menu-button-trash--active
+    color #5D9E36
+    background-color $ui-dark-button--active-backgroundColor
+    .menu-button-label
+      color $ui-dark-text-color
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 50%)
+      color #5D9E36
+      .menu-button-label
+        color $ui-dark-text-color
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .menu-button
+      &:active
+        background-color get-theme-var(theme, 'noteList-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        background-color get-theme-var(theme, 'button-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+
+    .menu-button--active
+      color get-theme-var(theme, 'text-color')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      .menu-button-label
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        background-color get-theme-var(theme, 'button-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+        .menu-button-label
+          color get-theme-var(theme, 'text-color')
+
+    .menu-button-star--active
+      color get-theme-var(theme, 'text-color')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      .menu-button-label
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        background-color get-theme-var(theme, 'button-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+        .menu-button-label
+          color get-theme-var(theme, 'text-color')
+
+    .menu-button-trash--active
+      color get-theme-var(theme, 'text-color')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      .menu-button-label
+        color get-theme-var(theme, 'text-color')
+      &:hover
+        background-color get-theme-var(theme, 'button-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+        .menu-button-label
+          color get-theme-var(theme, 'text-color')
+
+for theme in 'solarized-dark' 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/SnippetTab.js

@@ -0,0 +1,149 @@
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './SnippetTab.styl'
+import context from 'browser/lib/context'
+import i18n from 'browser/lib/i18n'
+
+class SnippetTab extends React.Component {
+  constructor(props) {
+    super(props)
+
+    this.state = {
+      isRenaming: false,
+      name: props.snippet.name
+    }
+  }
+
+  componentWillUpdate(nextProps) {
+    if (nextProps.snippet.name !== this.props.snippet.name) {
+      this.setState({
+        name: nextProps.snippet.name
+      })
+    }
+  }
+
+  handleClick(e) {
+    this.props.onClick(e)
+  }
+
+  handleContextMenu(e) {
+    context.popup([
+      {
+        label: i18n.__('Rename'),
+        click: e => this.handleRenameClick(e)
+      }
+    ])
+  }
+
+  handleRenameClick(e) {
+    this.startRenaming()
+  }
+
+  handleNameInputBlur(e) {
+    this.handleRename()
+  }
+
+  handleNameInputChange(e) {
+    this.setState({
+      name: e.target.value
+    })
+  }
+
+  handleNameInputKeyDown(e) {
+    switch (e.keyCode) {
+      case 13:
+        this.handleRename()
+        break
+      case 27:
+        this.setState((prevState, props) => ({
+          name: props.snippet.name,
+          isRenaming: false
+        }))
+        break
+    }
+  }
+
+  handleRename() {
+    this.setState(
+      {
+        isRenaming: false
+      },
+      () => {
+        if (this.props.snippet.name !== this.state.name) {
+          this.props.onRename(this.state.name)
+        }
+      }
+    )
+  }
+
+  handleDeleteButtonClick(e) {
+    this.props.onDelete(e)
+  }
+
+  startRenaming() {
+    this.setState(
+      {
+        isRenaming: true
+      },
+      () => {
+        this.refs.name.focus()
+        this.refs.name.select()
+      }
+    )
+  }
+
+  handleDragStart(e) {
+    e.dataTransfer.dropEffect = 'move'
+    this.props.onDragStart(e)
+  }
+
+  handleDrop(e) {
+    this.props.onDrop(e)
+  }
+
+  render() {
+    const { isActive, snippet, isDeletable } = this.props
+    return (
+      <div styleName={isActive ? 'root--active' : 'root'}>
+        {!this.state.isRenaming ? (
+          <button
+            styleName='button'
+            onClick={e => this.handleClick(e)}
+            onDoubleClick={e => this.handleRenameClick(e)}
+            onContextMenu={e => this.handleContextMenu(e)}
+            onDragStart={e => this.handleDragStart(e)}
+            onDrop={e => this.handleDrop(e)}
+            draggable='true'
+          >
+            {snippet.name.trim().length > 0 ? (
+              snippet.name
+            ) : (
+              <span>{i18n.__('Unnamed')}</span>
+            )}
+          </button>
+        ) : (
+          <input
+            styleName='input'
+            ref='name'
+            value={this.state.name}
+            onChange={e => this.handleNameInputChange(e)}
+            onBlur={e => this.handleNameInputBlur(e)}
+            onKeyDown={e => this.handleNameInputKeyDown(e)}
+          />
+        )}
+        {isDeletable && (
+          <button
+            styleName='deleteButton'
+            onClick={e => this.handleDeleteButtonClick(e)}
+          >
+            <i className='fa fa-times' />
+          </button>
+        )}
+      </div>
+    )
+  }
+}
+
+SnippetTab.propTypes = {}
+
+export default CSSModules(SnippetTab, styles)

browser/components/SnippetTab.styl

@@ -0,0 +1,142 @@
+.root
+  position relative
+  flex 1
+  min-width 70px
+  overflow hidden
+  border-left 1px solid $ui-borderColor
+  border-top 1px solid $ui-borderColor
+  &:hover
+    background-color alpha($ui-button--active-backgroundColor, 20%)
+    .deleteButton
+      color: $ui-text-color
+      visibility visible
+      transition 0.15s
+    .button
+      color: $ui-text-color
+      transition 0.15s
+
+.root--active
+  @extend .root
+  min-width 100px
+  background-color alpha($ui-button--active-backgroundColor, 60%)
+  .deleteButton
+    visibility visible
+    color: $ui-text-color
+    transition 0.15s
+  .button
+    font-weight bold
+    color: $ui-text-color
+    transition 0.15s
+
+.button
+  width 100%
+  height 29px
+  overflow ellipsis
+  text-align left
+  padding-right 23px
+  border none
+  background-color transparent
+  transition 0.15s
+  border-left 4px solid transparent
+  color $ui-inactive-text-color
+
+.deleteButton
+  position absolute
+  top 5px
+  height 20px
+  right 5px
+  width 20px
+  text-align center
+  border none
+  padding 0
+  color $ui-inactive-text-color
+  background-color transparent
+  border-radius 2px
+  visibility hidden
+
+.input
+  height 29px
+  border $ui-active-color
+  padding 0 5px
+  width 100%
+  outline none
+
+body[data-theme="default"], body[data-theme="white"]
+  .root--active
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+
+body[data-theme="dark"]
+  .root
+    border-color $ui-dark-borderColor
+    border-top 1px solid $ui-dark-borderColor
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 20%)
+      transition 0.15s
+      .button
+        color $ui-dark-text-color
+        transition 0.15s
+      .deleteButton
+        color $ui-dark-text-color
+        transition 0.15s
+
+  .root--active
+    background-color $ui-dark-button--active-backgroundColor
+    border-left 1px solid $ui-dark-borderColor
+    border-top 1px solid $ui-dark-borderColor
+    .button
+      color $ui-dark-text-color
+    .deleteButton
+      color $ui-dark-text-color
+
+  .button
+    border none
+    background-color transparent
+    transition color background-color 0.15s
+    border-left 4px solid transparent
+
+  .input
+    background-color $ui-dark-button--active-backgroundColor
+    color $ui-dark-text-color
+    transition 0.15s
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .root
+      border-color get-theme-var(theme, 'borderColor')
+      &:hover
+        background-color get-theme-var(theme, 'noteDetail-backgroundColor')
+        transition 0.15s
+        .deleteButton
+          color get-theme-var(theme, 'text-color')
+          transition 0.15s
+        .button
+          color get-theme-var(theme, 'text-color')
+          transition 0.15s
+
+    .root--active
+      color get-theme-var(theme, 'active-color')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      border-color get-theme-var(theme, 'borderColor')
+      .deleteButton
+        color get-theme-var(theme, 'text-color')
+      .button
+        color get-theme-var(theme, 'active-color')
+
+    .button
+      border none
+      color $ui-inactive-text-color
+      background-color transparent
+      transition color background-color 0.15s
+      border-left 4px solid transparent
+
+    .input
+      background-color get-theme-var(theme, 'noteDetail-backgroundColor')
+      color get-theme-var(theme, 'text-color')
+      transition 0.15s
+
+for theme in 'solarized-dark' 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/StorageItem.js

@@ -0,0 +1,105 @@
+/**
+ * @fileoverview Micro component for showing storage.
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import styles from './StorageItem.styl'
+import CSSModules from 'browser/lib/CSSModules'
+import _ from 'lodash'
+import { SortableHandle } from 'react-sortable-hoc'
+
+const DraggableIcon = SortableHandle(({ className }) => (
+  <i className={`fa ${className}`} />
+))
+
+const FolderIcon = ({ className, color, isActive }) => {
+  const iconStyle = isActive ? 'fa-folder-open-o' : 'fa-folder-o'
+  return (
+    <i className={`fa ${iconStyle} ${className}`} style={{ color: color }} />
+  )
+}
+
+/**
+ * @param {boolean} isActive
+ * @param {object} tooltipRef,
+ * @param {Function} handleButtonClick
+ * @param {Function} handleMouseEnter
+ * @param {Function} handleContextMenu
+ * @param {string} folderName
+ * @param {string} folderColor
+ * @param {boolean} isFolded
+ * @param {number} noteCount
+ * @param {Function} handleDrop
+ * @param {Function} handleDragEnter
+ * @param {Function} handleDragOut
+ * @return {React.Component}
+ */
+const StorageItem = ({
+  styles,
+  isActive,
+  tooltipRef,
+  handleButtonClick,
+  handleMouseEnter,
+  handleContextMenu,
+  folderName,
+  folderColor,
+  isFolded,
+  noteCount,
+  handleDrop,
+  handleDragEnter,
+  handleDragLeave
+}) => {
+  return (
+    <button
+      styleName={isActive ? 'folderList-item--active' : 'folderList-item'}
+      onClick={handleButtonClick}
+      onMouseEnter={handleMouseEnter}
+      onContextMenu={handleContextMenu}
+      onDrop={handleDrop}
+      onDragEnter={handleDragEnter}
+      onDragLeave={handleDragLeave}
+    >
+      {!isFolded && (
+        <DraggableIcon className={styles['folderList-item-reorder']} />
+      )}
+      <span
+        styleName={
+          isFolded ? 'folderList-item-name--folded' : 'folderList-item-name'
+        }
+      >
+        <FolderIcon
+          styleName='folderList-item-icon'
+          color={folderColor}
+          isActive={isActive}
+        />
+        {isFolded
+          ? _.truncate(folderName, { length: 1, omission: '' })
+          : folderName}
+      </span>
+      {!isFolded && _.isNumber(noteCount) && (
+        <span styleName='folderList-item-noteCount'>{noteCount}</span>
+      )}
+      {isFolded && (
+        <span styleName='folderList-item-tooltip' ref={tooltipRef}>
+          {folderName}
+        </span>
+      )}
+    </button>
+  )
+}
+
+StorageItem.propTypes = {
+  isActive: PropTypes.bool.isRequired,
+  tooltipRef: PropTypes.object,
+  handleButtonClick: PropTypes.func,
+  handleMouseEnter: PropTypes.func,
+  handleContextMenu: PropTypes.func,
+  folderName: PropTypes.string.isRequired,
+  folderColor: PropTypes.string,
+  isFolded: PropTypes.bool.isRequired,
+  handleDragEnter: PropTypes.func.isRequired,
+  handleDragLeave: PropTypes.func.isRequired,
+  noteCount: PropTypes.number
+}
+
+export default CSSModules(StorageItem, styles)

browser/components/StorageItem.styl

@@ -0,0 +1,148 @@
+.root
+  width 100%
+  user-select none
+
+.folderList-item
+  display flex
+  width 100%
+  height 34px
+  background-color transparent
+  color $ui-inactive-text-color
+  padding 0
+  text-align left
+  border none
+  overflow ellipsis
+  font-size 14px
+  align-items: center
+  &:first-child
+    margin-top 0
+  &:hover
+    color #1EC38B;
+    background-color alpha($ui-button-default--active-backgroundColor, 20%)
+    transition background-color 0.15s
+  &:active
+    color $$ui-button-default-color
+    background-color alpha($ui-button-default--active-backgroundColor, 20%)
+
+.folderList-item--active
+  @extend .folderList-item
+  color #1EC38B
+  background-color alpha($ui-button-default--active-backgroundColor, 20%)
+  &:hover
+    color #1EC38B;
+    background-color alpha($ui-button-default--active-backgroundColor, 50%)
+
+.folderList-item-name
+  display block
+  flex 1
+  padding-right: 10px
+  border-width 0 0 0 2px
+  border-style solid
+  border-color transparent
+  overflow hidden
+  text-overflow ellipsis
+
+.folderList-item-noteCount
+  float right
+  line-height 26px
+  padding-right 15px
+  font-size 13px
+
+.folderList-item-tooltip
+  tooltip()
+  position fixed
+  padding 0 10px
+  left 44px
+  z-index 10
+  pointer-events none
+  opacity 0
+  border-top-right-radius 2px
+  border-bottom-right-radius 2px
+  height 34px
+  line-height 32px
+  transition-property opacity
+
+.folderList-item:hover, .folderList-item--active:hover
+  .folderList-item-tooltip
+    opacity 1
+
+.folderList-item-name--folded
+  @extend .folderList-item-name
+  padding-left 7px
+  .folderList-item-icon
+    font-size 9px
+
+.folderList-item-icon
+  padding-right: 10px
+
+.folderList-item-reorder
+  font-size: 9px
+  padding: 10px 8px 10px 9px;
+  color: rgba(147, 147, 149, 0.3)
+  cursor: ns-resize
+  &:before
+    content: "\f142 \f142"
+
+body[data-theme="white"]
+  .folderList-item
+    color $ui-inactive-text-color
+    &:hover
+      color $ui-text-color
+      background-color alpha($ui-button--active-backgroundColor, 20%)
+      transition background-color 0.15s
+    &:active
+      color $ui-text-color
+      background-color $ui-button--active-backgroundColor
+
+  .folderList-item--active
+    @extend .folderList-item
+    color $ui-text-color
+    background-color $ui-button--active-backgroundColor
+    &:hover
+      color $ui-text-color
+      background-color alpha($ui-button--active-backgroundColor, 50%)
+
+body[data-theme="dark"]
+  .folderList-item
+    &:hover
+      background-color alpha($ui-dark-button--active-backgroundColor, 20%)
+      color $ui-dark-text-color
+    &:active
+      color $ui-dark-text-color
+      background-color $ui-dark-button--active-backgroundColor
+
+  .folderList-item--active
+    @extend .folderList-item
+    color $ui-dark-text-color
+    background-color $ui-dark-button--active-backgroundColor
+    &:active
+      background-color alpha($ui-dark-button--active-backgroundColor, 50%)
+    &:hover
+      color $ui-dark-text-color
+      background-color alpha($ui-dark-button--active-backgroundColor, 50%)
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .folderList-item
+      &:hover
+        background-color get-theme-var(theme, 'button-backgroundColor')
+        color get-theme-var(theme, 'text-color')
+      &:active
+        color get-theme-var(theme, 'text-color')
+        background-color get-theme-var(theme, 'button-backgroundColor')
+
+    .folderList-item--active
+      @extend .folderList-item
+      color get-theme-var(theme, 'text-color')
+      background-color get-theme-var(theme, 'button-backgroundColor')
+      &:active
+        background-color get-theme-var(theme, 'button-backgroundColor')
+      &:hover
+        color get-theme-var(theme, 'text-color')
+        background-color get-theme-var(theme, 'button-backgroundColor')
+
+for theme in 'solarized-dark' 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/StorageList.js

@@ -0,0 +1,26 @@
+/**
+ * @fileoverview Micro component for showing StorageList
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import styles from './StorageList.styl'
+import CSSModules from 'browser/lib/CSSModules'
+
+/**
+ * @param {Array} storageList
+ */
+
+const StorageList = ({ storageList, isFolded }) => (
+  <div styleName={isFolded ? 'storageList-folded' : 'storageList'}>
+    {storageList.length > 0 ? (
+      storageList
+    ) : (
+      <div styleName='storageList-empty'>No storage mount.</div>
+    )}
+  </div>
+)
+
+StorageList.propTypes = {
+  storageList: PropTypes.arrayOf(PropTypes.element).isRequired
+}
+export default CSSModules(StorageList, styles)

browser/components/StorageList.styl

@@ -0,0 +1,24 @@
+.storageList
+  absolute left right
+  bottom 37px
+  top 180px
+  overflow-y auto
+
+.storageList-folded
+  @extend .storageList
+  width 44px
+
+.storageList-empty
+  padding 0 10px
+  margin-top 15px
+  line-height 24px
+  color $ui-inactive-text-color
+
+body[data-theme="dark"]
+  .storageList-empty
+    color $ui-dark-inactive-text-color
+
+.root-folded
+  .storageList-empty
+    white-space nowrap
+    transform rotate(90deg)

browser/components/TagListItem.js

@@ -0,0 +1,70 @@
+/**
+ * @fileoverview Micro component for showing TagList.
+ */
+import PropTypes from 'prop-types'
+import React from 'react'
+import styles from './TagListItem.styl'
+import CSSModules from 'browser/lib/CSSModules'
+
+/**
+ * @param {string} name
+ * @param {Function} handleClickTagListItem
+ * @param {Function} handleClickNarrowToTag
+ * @param {boolean} isActive
+ * @param {boolean} isRelated
+ * @param {string} bgColor tab backgroundColor
+ */
+
+const TagListItem = ({
+  name,
+  handleClickTagListItem,
+  handleClickNarrowToTag,
+  handleContextMenu,
+  isActive,
+  isRelated,
+  count,
+  color
+}) => (
+  <div
+    styleName='tagList-itemContainer'
+    onContextMenu={e => handleContextMenu(e, name)}
+  >
+    {isRelated ? (
+      <button
+        styleName={
+          isActive ? 'tagList-itemNarrow-active' : 'tagList-itemNarrow'
+        }
+        onClick={() => handleClickNarrowToTag(name)}
+      >
+        <i className={isActive ? 'fa fa-minus-circle' : 'fa fa-plus-circle'} />
+      </button>
+    ) : (
+      <div
+        styleName={
+          isActive ? 'tagList-itemNarrow-active' : 'tagList-itemNarrow'
+        }
+      />
+    )}
+    <button
+      styleName={isActive ? 'tagList-item-active' : 'tagList-item'}
+      onClick={() => handleClickTagListItem(name)}
+    >
+      <span
+        styleName='tagList-item-color'
+        style={{ backgroundColor: color || 'transparent' }}
+      />
+      <span styleName='tagList-item-name'>
+        {`# ${name}`}
+        <span styleName='tagList-item-count'>{count !== 0 ? count : ''}</span>
+      </span>
+    </button>
+  </div>
+)
+
+TagListItem.propTypes = {
+  name: PropTypes.string.isRequired,
+  handleClickTagListItem: PropTypes.func.isRequired,
+  color: PropTypes.string
+}
+
+export default CSSModules(TagListItem, styles)

browser/components/TagListItem.styl

@@ -0,0 +1,123 @@
+.tagList-itemContainer
+  display flex
+
+.tagList-item
+  display flex
+  flex 1
+  width 100%
+  height 26px
+  background-color transparent
+  color $ui-inactive-text-color
+  padding 0
+  margin-bottom 5px
+  text-align left
+  border none
+  overflow ellipsis
+  font-size 13px
+  &:first-child
+    margin-top 0
+  &:hover
+    color $ui-button-default-color
+    background-color alpha($ui-button-default--active-backgroundColor, 20%)
+    transition background-color 0.15s
+  &:active, &:active:hover
+    color $ui-button-default-color
+    background-color $ui-button-default--active-backgroundColor
+
+.tagList-itemNarrow
+  composes tagList-item
+  flex none
+  width 20px
+  padding 0 4px
+
+.tagList-item-active
+  background-color $ui-button-default--active-backgroundColor
+  display flex
+  flex 1
+  width 100%
+  height 26px
+  padding 0
+  margin-bottom 5px
+  text-align left
+  border none
+  overflow ellipsis
+  font-size 13px
+  color $ui-button-default-color
+  &:hover
+    background-color alpha($ui-button-default--active-backgroundColor, 60%)
+    transition 0.2s
+
+.tagList-itemNarrow-active
+  composes tagList-item-active
+  flex none
+  width 20px
+  padding 0 4px
+
+.tagList-item-name
+  display block
+  flex 1
+  padding 0 8px 0 4px
+  height 26px
+  line-height 26px
+  border-width 0 0 0 2px
+  border-style solid
+  border-color transparent
+  overflow hidden
+  text-overflow ellipsis
+
+.tagList-item-count
+  float right
+  line-height 26px
+  padding-right 15px
+  font-size 13px
+
+.tagList-item-color
+  height 26px
+  width 3px
+  display inline-block
+
+body[data-theme="white"]
+  .tagList-item
+    color $ui-inactive-text-color
+    &:hover
+      color $ui-text-color
+      background-color alpha($ui-button--active-backgroundColor, 20%)
+    &:active
+      color $ui-text-color
+      background-color $ui-button--active-backgroundColor
+
+  .tagList-item-active
+    background-color $ui-button--active-backgroundColor
+    color $ui-text-color
+    &:hover
+      background-color alpha($ui-button--active-backgroundColor, 60%)
+  .tagList-item-count
+    color $ui-text-color
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .tagList-item
+      color get-theme-var(theme, 'inactive-text-color')
+      &:hover
+        color get-theme-var(theme, 'text-color')
+        background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 20%)
+      &:active
+        color get-theme-var(theme, 'text-color')
+        background-color get-theme-var(theme, 'button--active-backgroundColor')
+
+    .tagList-item-active
+      background-color get-theme-var(theme, 'button--active-backgroundColor')
+      color get-theme-var(theme, 'text-color')
+      &:active
+        background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 50%)
+      &:hover
+        color get-theme-var(theme, 'text-color')
+        background-color alpha(get-theme-var(theme, 'button--active-backgroundColor'), 50%)
+    .tagList-item-count
+      color get-theme-var(theme, 'button--active-color')
+
+for theme in 'dark'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/TodoListPercentage.js

@@ -0,0 +1,37 @@
+/**
+ * @fileoverview Percentage of todo achievement.
+ */
+
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './TodoListPercentage.styl'
+
+/**
+ * @param {number} percentageOfTodo
+ */
+
+const TodoListPercentage = ({ percentageOfTodo, onClearCheckboxClick }) => (
+  <div
+    styleName='percentageBar'
+    style={{ display: isNaN(percentageOfTodo) ? 'none' : '' }}
+  >
+    <div styleName='progressBar' style={{ width: `${percentageOfTodo}%` }}>
+      <div styleName='progressBarInner'>
+        <p styleName='percentageText'>{percentageOfTodo}%</p>
+      </div>
+    </div>
+    <div styleName='todoClear'>
+      <p styleName='todoClearText' onClick={e => onClearCheckboxClick(e)}>
+        clear
+      </p>
+    </div>
+  </div>
+)
+
+TodoListPercentage.propTypes = {
+  percentageOfTodo: PropTypes.number.isRequired,
+  onClearCheckboxClick: PropTypes.func.isRequired
+}
+
+export default CSSModules(TodoListPercentage, styles)

browser/components/TodoListPercentage.styl

@@ -0,0 +1,89 @@
+.percentageBar
+  display: flex
+  position absolute
+  top 72px
+  right 0px
+  left 0px
+  background-color #DADFE1
+  width 100%
+  height: 17px
+  font-size: 12px
+  z-index 100
+  border-radius 2px
+
+.progressBar
+  background-color: #1EC38B
+  height 17px
+  border-radius 2px
+  transition 0.4s cubic-bezier(0.4, 0.4, 0, 1)
+
+.progressBarInner
+  padding 0 10px
+  min-width 1px
+  height 100%
+  display -webkit-box
+  display box
+  justify-content center
+  align-items center
+
+
+.percentageText
+  color #f4f4f4
+  font-weight 600
+
+.todoClear
+  display flex
+  justify-content: flex-end
+  position absolute
+  z-index 120
+  width 100%
+  height 100%
+  padding 2px 10px
+
+.todoClearText
+  color #f4f4f4
+  cursor pointer
+  font-weight 500
+
+body[data-theme="dark"]
+  .percentageBar
+    background-color #444444
+
+  .progressBar
+    background-color: #1EC38B
+
+  .percentageText
+    color $ui-dark-text-color
+
+  .todoClearText
+    color $ui-dark-text-color
+
+body[data-theme="solarized-dark"]
+  .percentageBar
+    background-color #002b36
+
+  .progressBar
+    background-color: #2aa198
+
+  .percentageText
+    color #fdf6e3
+
+  .todoClearText
+    color #fdf6e3
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    .percentageBar
+      background-color: get-theme-var(theme, 'borderColor')
+
+    .progressBar
+      background-color get-theme-var(theme, 'active-color')
+
+    .percentageText
+      color get-theme-var(theme, 'text-color')
+
+for theme in 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/TodoProcess.js

@@ -0,0 +1,37 @@
+/**
+ * @fileoverview Percentage of todo achievement.
+ */
+
+import PropTypes from 'prop-types'
+import React from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './TodoProcess.styl'
+
+const TodoProcess = ({
+  todoStatus: { total: totalTodo, completed: completedTodo }
+}) => (
+  <div
+    styleName='todo-process'
+    style={{ display: totalTodo > 0 ? '' : 'none' }}
+  >
+    <div styleName='todo-process-text'>
+      <i className='fa fa-fw fa-check-square-o' />
+      {completedTodo} of {totalTodo}
+    </div>
+    <div styleName='todo-process-bar'>
+      <div
+        styleName='todo-process-bar--inner'
+        style={{ width: parseInt((completedTodo / totalTodo) * 100) + '%' }}
+      />
+    </div>
+  </div>
+)
+
+TodoProcess.propTypes = {
+  todoStatus: PropTypes.exact({
+    total: PropTypes.number.isRequired,
+    completed: PropTypes.number.isRequired
+  })
+}
+
+export default CSSModules(TodoProcess, styles)

browser/components/TodoProcess.styl

@@ -0,0 +1,45 @@
+.todo-process
+  font-size 12px
+  display flex
+  padding-top 15px
+  width 85%
+
+.todo-process-text
+  display inline-block
+  padding-right 10px
+  white-space nowrap
+  text-overflow ellipsis
+  color $ui-inactive-text-color
+  i
+    color $ui-inactive-text-color
+    padding-right 5px
+
+.todo-process-bar
+  display inline-block
+  margin auto
+  height 4px
+  border-radius 10px
+  background-color #DADFE1
+  border-radius 2px
+  flex-grow 1
+  border 1px solid alpha(#6C7A89, 10%)
+
+.todo-process-bar--inner
+  height 100%
+  border-radius 5px
+  background-color #6C7A89
+  transition 0.3s
+
+
+body[data-theme="dark"]
+  .todo-process
+    color $ui-dark-text-color
+
+  .todo-process-bar
+    background-color #363A3D
+
+  .todo-process-text
+    color $ui-inactive-text-color
+
+  .todo-process-bar--inner
+    background-color: alpha(#939395, 50%)

browser/components/markdown.styl

@@ -0,0 +1,611 @@
+global-reset()
+
+borderColor = #D0D0D0 // using
+highlightenBorderColor = darken(borderColor, 20%)
+invBorderColor = #404849
+brandBorderColor = #3FB399
+
+focusBorderColor = #369DCD
+
+buttonBorderColor = #4C4C4C
+
+lightButtonColor = #898989
+
+hoverBackgroundColor= transparentify(#444, 4%) // using
+
+inactiveTextColor = #888 // using
+textColor = #4D4D4D // using
+backgroundColor= white
+fontSize= 14px // using
+
+shadowColor= #C5C5C5
+
+invBackgroundColor = #4C4C4C
+invTextColor = white
+
+btnColor = #888
+btnHighlightenColor = #000
+
+brandColor = #2BAC8F
+
+popupShadow = 0 0 5px 0 #888
+
+
+tableHeadBgColor = white
+tableOddBgColor = #F9F9F9
+tableEvenBgColor = white
+
+facebookColor= #3b5998
+githubBtn= #201F1F
+
+// using
+successBackgroundColor= #E0F0D9
+successTextColor= #3E753F
+errorBackgroundColor= #F2DEDE
+errorTextColor= #A64444
+infoBackgroundColor= #D9EDF7
+infoTextColor= #34708E
+
+popupZIndex= 500
+
+body
+  font-size 16px
+  padding 15px
+  font-family helvetica, arial, sans-serif
+  line-height 1.6
+  overflow-x hidden
+  background-color $ui-noteDetail-backgroundColor
+  // do not allow display line breaks
+  .katex-display > .katex
+    white-space nowrap
+  // allow inline line breaks
+  .katex
+    white-space initial
+  .katex .katex-html
+    display inline-flex
+  .katex .mfrac>.vlist>span:nth-child(2)
+    top 0 !important
+  .katex-error
+    background-color errorBackgroundColor
+    color errorTextColor
+    padding 5px
+    margin -5px
+    border-radius 5px
+  .flowchart-error, .sequence-error .chart-error
+    background-color errorBackgroundColor
+    color errorTextColor
+    padding 5px
+    border-radius 5px
+    justify-content left
+li
+  label.taskListItem
+    margin-left -1.8em
+    &.checked
+      text-decoration line-through
+      opacity 0.5
+  &.taskListItem.checked
+    text-decoration line-through
+    opacity 0.5
+div.math-rendered
+  text-align center
+.math-failed
+  background-color alpha(red, 0.1)
+  color darken(red, 15%)
+  padding 5px
+  margin 5px 0
+  border-radius 5px
+sup
+  position relative
+  top -.4em
+  font-size 0.8em
+  vertical-align top
+sub
+  position relative
+  bottom -.4em
+  font-size 0.8em
+  vertical-align top
+a
+  color brandColor
+  text-decoration none
+  padding 5px
+  border-radius 5px
+  margin -5px
+  transition .1s
+  img
+    vertical-align sub
+  &:hover
+    color lighten(brandColor, 5%)
+    text-decoration underline
+    background-color alpha(#FFC95C, 0.3)
+  &:visited
+    color brandColor
+hr
+  border-top none
+  border-bottom solid 1px borderColor
+  margin 15px 0
+h1, h2, h3, h4, h5, h6
+  margin 1em 0 1.5em
+  line-height 1.4
+  font-weight bold
+  word-wrap break-word
+  padding .2em 0 .2em
+h1
+  font-size 2.55em
+  line-height 1.2
+  border-bottom solid 1px borderColor
+  &:first-child
+    margin-top 0
+h2
+  font-size 1.75em
+  line-height 1.225
+  border-bottom solid 1px borderColor
+  &:first-child
+    margin-top 0
+h3
+  font-size 1.5em
+  line-height 1.43
+h4
+  font-size 1.25em
+  line-height 1.4
+h5
+  font-size 1em
+  line-height 1.1
+h6
+  font-size 1em
+  color #777
+p
+  line-height 1.6em
+  margin 0 0 1em
+  white-space pre-line
+  word-wrap break-word
+img
+  cursor zoom-in
+  max-width 100%
+strong, b
+  font-weight bold
+em, i
+  font-style italic
+s, del, strike
+  text-decoration line-through
+u
+  text-decoration underline
+blockquote
+  border-left solid 4px brandBorderColor
+  margin 0 0 1em
+  padding 0 25px
+ul
+  list-style-type disc
+  padding-left 2em
+  margin-bottom 1em
+  li
+    display list-item
+    &.taskListItem
+      list-style none
+      &>input
+        margin-left -1.6em
+      &>p
+        margin-left -1.8em
+    p
+      margin 0
+  &>li>ul, &>li>ol
+    margin 0
+  &>li>ul
+    list-style-type circle
+    &>li>ul
+      list-style-type square
+ol
+  list-style-type decimal
+  padding-left 2em
+  margin-bottom 1em
+  li
+    display list-item
+    p
+      margin 0
+  &>li>ul, &>li>ol
+    margin 0
+code
+  padding 0.2em 0.4em
+  background-color #f7f7f7
+  border-radius 3px
+  font-size 1em
+  text-decoration none
+  margin-right 2px
+pre
+  padding 0.5rem !important
+  border solid 1px #D1D1D1
+  border-radius 5px
+  overflow-x auto
+  margin 0 0 1rem
+  display flex
+  line-height 1.4em
+  code
+    background-color inherit
+    margin 0
+    padding 0
+    border none
+    border-radius 0
+  &.CodeMirror
+    height initial
+    flex-wrap wrap
+    &>code
+      flex 1
+      overflow-x auto
+  &.mermaid svg
+    max-width 100% !important
+  &>span.filename
+    margin -0.5rem 100% 0.5rem -0.5rem
+    padding 0.125rem 0.375rem
+    background-color #777;
+    color white
+    &:empty
+      display none
+  &>span.lineNumber
+    display none
+    font-size 1em
+    padding 0.5rem 0
+    margin -0.5rem 0.5rem -0.5rem -0.5rem
+    border-right 1px solid
+    text-align right
+    border-top-left-radius 4px
+    border-bottom-left-radius 4px
+    &.CodeMirror-gutters
+      position initial
+      top initial
+      left initial
+      min-height 0 !important
+    &>span
+      display block
+      padding 0 .5em 0
+table
+  display block
+  width 100%
+  margin 0 0 1em
+  overflow-x auto
+  thead
+    tr
+      background-color tableHeadBgColor
+    th
+      border-style solid
+      padding 6px 13px
+      line-height 1.6
+      border-width 1px 0 2px 1px
+      border-color borderColor
+      font-weight bold
+      &:last-child
+        border-right solid 1px borderColor
+  tbody
+    tr:nth-child(2n + 1)
+      background-color tableOddBgColor
+    tr:nth-child(2n)
+      background-color tableEvenBgColor
+    td
+      border-style solid
+      padding 6px 13px
+      line-height 1.6
+      border-width 0 0 1px 1px
+      border-color borderColor
+      &:last-child
+        border-right solid 1px borderColor
+kbd
+  background-color #fafbfc
+  border solid 1px borderColor
+  border-bottom-color btnColor
+  border-radius 3px
+  box-shadow inset 0 -1px 0 #959da5
+  display inline-block
+  font-size .8em
+  line-height 1
+  padding 3px 5px
+
+$admonition
+    box-shadow 0 2px 2px 0 rgba(0,0,0,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(0,0,0,.2)
+    position relative
+    margin 1.5625em 0
+    padding 0 1.2rem
+    border-left .4rem solid #448aff
+    border-radius .2rem
+    overflow auto
+
+html .admonition>:last-child
+    margin-bottom 1.2rem
+
+.admonition .admonition
+    margin 1em 0
+
+.admonition p
+    margin-top: 0.5em
+
+$admonition-icon
+    position absolute
+    left 1.2rem
+    font-family: "Material Icons"
+    font-weight: normal;
+    font-style: normal;
+    font-size: 24px
+    display: inline-block;
+    line-height: 1;
+    text-transform: none;
+    letter-spacing: normal;
+    word-wrap: normal;
+    white-space: nowrap;
+    direction: ltr;
+
+    /* Support for all WebKit browsers. */
+    -webkit-font-smoothing: antialiased;
+    /* Support for Safari and Chrome. */
+    text-rendering: optimizeLegibility;
+
+    /* Support for Firefox. */
+    -moz-osx-font-smoothing: grayscale;
+
+    /* Support for IE. */
+    font-feature-settings: 'liga';
+
+$admonition-title
+    margin 0 -1.2rem
+    padding .8rem 1.2rem .8rem 4rem
+    border-bottom .1rem solid rgba(68,138,255,.1)
+    background-color rgba(68,138,255,.1)
+    font-weight 700
+
+.admonition>.admonition-title:last-child
+    margin-bottom 0
+
+admonition_types = {
+    note: {color: #0288D1, icon: "note"},
+    hint: {color: #009688, icon: "info_outline"},
+    danger: {color: #c2185b, icon: "block"},
+    caution: {color: #ffa726, icon: "warning"},
+    error: {color: #d32f2f, icon: "error_outline"},
+    question: {color: #64dd17, icon: "help_outline"},
+    quote: {color: #9e9e9e, icon: "format_quote"},
+    abstract: {color: #00b0ff, icon: "subject"},
+    attention: {color: #455a64, icon: "priority_high"},
+}
+
+for name, val in admonition_types
+    .admonition.{name}
+        @extend $admonition
+        border-left-color: val[color]
+
+    .admonition.{name}>.admonition-title
+        @extend $admonition-title
+        border-bottom-color: .1rem solid rgba(val[color], 0.2)
+        background-color: rgba(val[color], 0.2)
+
+    .admonition.{name}>.admonition-title:before
+        @extend $admonition-icon
+        color: val[color]
+        content: val[icon]
+
+dl
+  margin 2rem 0
+  padding 0
+  display flex
+  width 100%
+  flex-wrap wrap
+  align-items flex-start
+  border-bottom 1px solid borderColor
+  background-color tableHeadBgColor
+
+dt
+  border-top 1px solid borderColor
+  font-weight bold
+  text-align right
+  overflow hidden
+  flex-basis 20%
+  padding 0.4rem 0.9rem
+  box-sizing border-box
+
+dd
+  border-top 1px solid borderColor
+  flex-basis 80%
+  padding 0.4rem 0.9rem
+  min-height 2.5rem
+  background-color $ui-noteDetail-backgroundColor
+  box-sizing border-box
+
+dd + dd
+  margin-left 20%
+
+pre.fence
+  flex-wrap wrap
+
+  .chart, .flowchart, .mermaid, .sequence
+    display flex
+    justify-content center
+    background-color white
+    max-width 100%
+    flex-grow 1
+
+    canvas, svg
+      max-width 100% !important
+
+    svg[ratio]
+      width 100%
+
+  .gallery
+    width 100%
+    height 50vh
+
+    .carousel
+      .carousel-main img
+        min-width auto
+        max-width 100%
+        min-height auto
+        max-height 100%
+
+      .carousel-footer::-webkit-scrollbar-corner
+        background-color transparent
+
+      .carousel-main, .carousel-footer
+        background-color $ui-noteDetail-backgroundColor
+      .prev, .next
+        color $ui-text-color
+        background-color $ui-tag-backgroundColor
+
+.markdownIt-TOC-wrapper
+  list-style none
+  position fixed
+  right 0
+  top 0
+  margin-left 15px
+  z-index 1000
+  transition transform .2s ease-in-out
+  transform translateX(100%)
+
+  .markdownIt-TOC
+    display block
+    max-height 90vh
+    overflow-y auto
+    padding 25px
+    padding-left 38px
+
+  &,
+  &:before
+    background-color $ui-dark-backgroundColor
+    color: $ui-dark-text-color
+
+  &:hover
+    transform translateX(-15px)
+
+  &:before
+    content 'TOC'
+    position absolute
+    width 60px
+    height 30px
+    top 60px
+    left -29px
+    display flex
+    align-items center
+    justify-content center
+    transform-origin top left
+    transform rotate(-90deg)
+
+themeDarkBackground = darken(#21252B, 10%)
+themeDarkText = #f9f9f9
+themeDarkBorder = lighten(themeDarkBackground, 20%)
+themeDarkPreview = $ui-dark-noteDetail-backgroundColor
+themeDarkTableOdd = themeDarkPreview
+themeDarkTableEven = darken(themeDarkPreview, 10%)
+themeDarkTableHead = themeDarkTableEven
+themeDarkTableBorder = themeDarkBorder
+themeDarkModalButtonDefault = themeDarkPreview
+themeDarkModalButtonDanger = #BF360C
+
+body[data-theme="dark"]
+  color themeDarkText
+  border-color themeDarkBorder
+  background-color themeDarkPreview
+  a:hover
+    background-color alpha(lighten(brandColor, 30%), 0.2) !important
+
+  code
+    color #EA6730
+    border-color darken(themeDarkBorder, 10%)
+    background-color lighten(themeDarkPreview, 5%)
+
+  pre
+    border-color lighten(#21252B, 20%)
+    code
+      background-color transparent
+
+  label.taskListItem
+    background-color themeDarkPreview
+  table
+    thead
+      tr
+        background-color themeDarkTableHead
+      th
+        border-color themeDarkTableBorder
+        &:last-child
+          border-right solid 1px themeDarkTableBorder
+    tbody
+      tr:nth-child(2n + 1)
+        background-color themeDarkTableOdd
+      tr:nth-child(2n)
+        background-color themeDarkTableEven
+      td
+        border-color themeDarkTableBorder
+        &:last-child
+          border-right solid 1px themeDarkTableBorder
+  kbd
+    background-color themeDarkBorder
+    color themeDarkText
+  dl
+    border-color themeDarkBorder
+    background-color themeDarkTableHead
+  dt
+    border-color themeDarkBorder
+  dd
+    border-color themeDarkBorder
+    background-color themeDarkPreview
+
+  pre.fence
+    .gallery
+      .carousel-main, .carousel-footer
+        background-color $ui-dark-noteDetail-backgroundColor
+      .prev, .next
+        color $ui-dark-text-color
+        background-color $ui-dark-tag-backgroundColor
+
+  .markdownIt-TOC-wrapper
+    &,
+    &:before
+      background-color darken(themeDarkBackground, 5%)
+      color themeDarkText
+
+apply-theme(theme)
+  body[data-theme={theme}]
+    color get-theme-var(theme, 'text-color')
+    border-color themeDarkBorder
+    background-color get-theme-var(theme, 'noteDetail-backgroundColor')
+    table
+      thead
+        tr
+          background-color get-theme-var(theme, 'table-head-backgroundColor')
+        th
+          border-color get-theme-var(theme, 'table-borderColor')
+          &:last-child
+            border-right solid 1px get-theme-var(theme, 'table-borderColor')
+      tbody
+        tr:nth-child(2n + 1)
+          background-color get-theme-var(theme, 'table-odd-backgroundColor')
+        tr:nth-child(2n)
+          background-color get-theme-var(theme, 'table-even-backgroundColor')
+        td
+          border-color get-theme-var(theme, 'table-borderColor')
+          &:last-child
+            border-right solid 1px get-theme-var(theme, 'table-borderColor')
+    kbd
+      background-color get-theme-var(theme, 'kbd-backgroundColor')
+      color get-theme-var(theme, 'kbd-color')
+
+    dl
+      border-color themeDarkBorder
+      background-color get-theme-var(theme, 'table-head-backgroundColor')
+    dt
+      border-color themeDarkBorder
+    dd
+      border-color themeDarkBorder
+      background-color get-theme-var(theme, 'noteDetail-backgroundColor')
+
+    pre.fence
+      .gallery
+        .carousel-main, .carousel-footer
+          background-color get-theme-var(theme, 'noteDetail-backgroundColor')
+        .prev, .next
+          color get-theme-var(theme, 'button--active-color')
+          background-color get-theme-var(theme, 'button-backgroundColor')
+
+    .markdownIt-TOC-wrapper
+      &,
+      &:before
+        background-color darken(get-theme-var(theme, 'noteDetail-backgroundColor'), 15%)
+        color themeDarkText
+
+for theme in 'solarized-dark' 'dracula'
+  apply-theme(theme)
+
+for theme in $themes
+  apply-theme(theme)

browser/components/render/MermaidRender.js

@@ -0,0 +1,72 @@
+import mermaidAPI from 'mermaid/dist/mermaid.min.js'
+import uiThemes from 'browser/lib/ui-themes'
+
+// fixes bad styling in the mermaid dark theme
+const darkThemeStyling = `
+.loopText tspan {
+  fill: white;
+}`
+
+function getRandomInt(min, max) {
+  return Math.floor(Math.random() * (max - min)) + min
+}
+
+function getId() {
+  const pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+  let id = 'm-'
+  for (let i = 0; i < 7; i++) {
+    id += pool[getRandomInt(0, 16)]
+  }
+  return id
+}
+
+function render(element, content, theme, enableHTMLLabel) {
+  try {
+    const height = element.attributes.getNamedItem('data-height')
+    const isPredefined = height && height.value !== 'undefined'
+
+    if (isPredefined) {
+      element.style.height = height.value + 'vh'
+    }
+
+    const isDarkTheme = uiThemes.some(
+      item => item.name === theme && item.isDark
+    )
+
+    mermaidAPI.initialize({
+      theme: isDarkTheme ? 'dark' : 'default',
+      themeCSS: isDarkTheme ? darkThemeStyling : '',
+      flowchart: {
+        htmlLabels: enableHTMLLabel
+      },
+      gantt: {
+        useWidth: element.clientWidth
+      }
+    })
+
+    mermaidAPI.render(getId(), content, svgGraph => {
+      element.innerHTML = svgGraph
+
+      if (!isPredefined) {
+        const el = element.firstChild
+        const viewBox = el.getAttribute('viewBox').split(' ')
+
+        let ratio = viewBox[2] / viewBox[3]
+
+        if (el.style.maxWidth) {
+          const maxWidth = parseFloat(el.style.maxWidth)
+
+          ratio *= el.parentNode.clientWidth / maxWidth
+        }
+
+        el.setAttribute('ratio', ratio)
+        el.setAttribute('height', el.parentNode.clientWidth / ratio)
+      }
+    })
+  } catch (e) {
+    element.className = 'mermaid-error'
+    element.innerHTML = 'mermaid diagram parse error: ' + e.message
+  }
+}
+
+export default render

browser/finder/FinderDetail.js

@@ -1,44 +0,0 @@
-import React, { PropTypes } from 'react'
-import CodeEditor from 'boost/components/CodeEditor'
-import MarkdownPreview from 'boost/components/MarkdownPreview'
-import ModeIcon from 'boost/components/ModeIcon'
-
-export default class FinderDetail extends React.Component {
-  render () {
-    let { activeArticle } = this.props
-
-    if (activeArticle != null) {
-      return (
-        <div className='FinderDetail'>
-          <div className='header'>
-            <div className='left'>
-            <ModeIcon mode={activeArticle.mode}/> {activeArticle.title}
-            </div>
-            <div className='right'>
-              <button onClick={this.props.saveToClipboard} className='clipboardBtn'>
-                <i className='fa fa-clipboard fa-fw'/>
-                <span className='tooltip'>Copy to clipboard (Enter)</span>
-              </button>
-            </div>
-          </div>
-          <div className='content'>
-            {activeArticle.mode === 'markdown'
-              ? <MarkdownPreview content={activeArticle.content}/>
-              : <CodeEditor readOnly mode={activeArticle.mode} code={activeArticle.content}/>
-            }
-          </div>
-        </div>
-      )
-    }
-    return (
-      <div className='FinderDetail'>
-        <div className='nothing'>Nothing selected</div>
-      </div>
-    )
-  }
-}
-
-FinderDetail.propTypes = {
-  activeArticle: PropTypes.shape(),
-  saveToClipboard: PropTypes.func
-}

browser/finder/FinderInput.js

@@ -1,16 +0,0 @@
-import React, { PropTypes } from 'react'
-
-export default class FinderInput extends React.Component {
-  render () {
-    return (
-      <div className='FinderInput'>
-        <input ref='input' value={this.props.value} onChange={this.props.handleSearchChange} type='text'/>
-      </div>
-    )
-  }
-}
-
-FinderInput.propTypes = {
-  handleSearchChange: PropTypes.func,
-  value: PropTypes.string
-}

browser/finder/FinderList.js

@@ -1,71 +0,0 @@
-import React, { PropTypes } from 'react'
-import ReactDOM from 'react-dom'
-import ModeIcon from 'boost/components/ModeIcon'
-import { selectArticle } from './actions'
-
-export default class FinderList extends React.Component {
-  componentDidUpdate () {
-    var index = this.props.articles.indexOf(this.props.activeArticle)
-    var el = ReactDOM.findDOMNode(this)
-    var li = el.querySelectorAll('li')[index]
-
-    if (li == null) {
-      return
-    }
-
-    var overflowBelow = el.clientHeight + el.scrollTop < li.offsetTop + li.clientHeight
-    if (overflowBelow) {
-      el.scrollTop = li.offsetTop + li.clientHeight - el.clientHeight
-    }
-    var overflowAbove = el.scrollTop > li.offsetTop
-    if (overflowAbove) {
-      el.scrollTop = li.offsetTop
-    }
-  }
-
-  handleArticleClick (article) {
-    return (e) => {
-      let { dispatch } = this.props
-      dispatch(selectArticle(article.key))
-    }
-  }
-
-  render () {
-    let articleElements = this.props.articles.map(function (article) {
-      if (article == null) {
-        return (
-          <li className={isActive ? 'active' : ''}>
-            <div className='articleItem'>Undefined</div>
-            <div className='divider'/>
-          </li>
-        )
-      }
-
-      var isActive = this.props.activeArticle != null && (article.key === this.props.activeArticle.key)
-      return (
-        <li key={'article-' + article.key} onClick={this.handleArticleClick(article)} className={isActive ? 'active' : ''}>
-          <div className='articleItem'>
-            <ModeIcon mode={article.mode}/> {article.title}</div>
-          <div className='divider'/>
-        </li>
-      )
-    }.bind(this))
-
-    return (
-      <div className='FinderList'>
-        <ul>
-          {articleElements}
-        </ul>
-      </div>
-    )
-  }
-}
-
-FinderList.propTypes = {
-  articles: PropTypes.array,
-  activeArticle: PropTypes.shape({
-    type: PropTypes.string,
-    key: PropTypes.string
-  }),
-  dispatch: PropTypes.func
-}

browser/finder/actions.js

@@ -1,39 +0,0 @@
-export const SELECT_ARTICLE = 'SELECT_ARTICLE'
-export const SEARCH_ARTICLE = 'SEARCH_ARTICLE'
-export const REFRESH_DATA = 'REFRESH_DATA'
-
-export function selectArticle (key) {
-  return {
-    type: SELECT_ARTICLE,
-    data: { key }
-  }
-}
-
-export function searchArticle (input) {
-  return {
-    type: SEARCH_ARTICLE,
-    data: { input }
-  }
-}
-
-export function refreshData (data) {
-  console.log('refreshing data')
-  let { folders, articles } = data
-
-  return {
-    type: REFRESH_DATA,
-    data: {
-      articles,
-      folders
-    }
-  }
-}
-
-export default {
-  SELECT_ARTICLE,
-  SEARCH_ARTICLE,
-  REFRESH_DATA,
-  selectArticle,
-  searchArticle,
-  refreshData
-}

browser/finder/index.html

@@ -1,42 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-
-  <title>Boost Finder</title>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0"/>
-
-
-  <link rel="stylesheet" href="../../node_modules/font-awesome/css/font-awesome.min.css" media="screen" charset="utf-8">
-  <link rel="stylesheet" href="../../node_modules/devicon/devicon.min.css">
-  <link rel="stylesheet" href="../../node_modules/highlight.js/styles/xcode.css">
-  <link rel="shortcut icon" href="favicon.ico">
-
-  <style>
-  @font-face {
-    font-family: 'Lato';
-    src: url('../../resources/Lato-Regular.woff2') format('woff2'), /* Modern Browsers */
-         url('../../resources/Lato-Regular.woff') format('woff'), /* Modern Browsers */
-         url('../../resources/Lato-Regular.ttf') format('truetype');
-    font-style: normal;
-    font-weight: normal;
-    text-rendering: optimizeLegibility;
-  }
-  </style>
-</head>
-<body>
-  <div id="content"></div>
-  <script src="../../submodules/ace/src-min/ace.js"></script>
-  <script>
-    const electron = require('electron')
-    electron.webFrame.setZoomLevelLimits(1, 1)
-    var scriptUrl = process.env.BOOST_ENV === 'development'
-      ? 'http://localhost:8080/assets/finder.js'
-      : '../../compiled/finder.js'
-    var scriptEl=document.createElement('script')
-    scriptEl.setAttribute("type","text/javascript")
-    scriptEl.setAttribute("src", scriptUrl)
-    document.getElementsByTagName("head")[0].appendChild(scriptEl)
-  </script>
-</body>
-</html>

browser/finder/index.js

@@ -1,230 +0,0 @@
-import React, { PropTypes } from 'react'
-import ReactDOM from 'react-dom'
-import { connect, Provider } from 'react-redux'
-import reducer from './reducer'
-import { createStore } from 'redux'
-import FinderInput from './FinderInput'
-import FinderList from './FinderList'
-import FinderDetail from './FinderDetail'
-import actions, { selectArticle, searchArticle } from './actions'
-import _ from 'lodash'
-import dataStore from 'boost/dataStore'
-
-const electron = require('electron')
-const { remote, clipboard } = electron
-
-var hideFinder = remote.getGlobal('hideFinder')
-
-function notify (...args) {
-  return new window.Notification(...args)
-}
-
-require('../styles/finder/index.styl')
-
-const FOLDER_FILTER = 'FOLDER_FILTER'
-const FOLDER_EXACT_FILTER = 'FOLDER_EXACT_FILTER'
-const TEXT_FILTER = 'TEXT_FILTER'
-const TAG_FILTER = 'TAG_FILTER'
-
-class FinderMain extends React.Component {
-  constructor (props) {
-    super(props)
-  }
-
-  componentDidMount () {
-    ReactDOM.findDOMNode(this.refs.finderInput.refs.input).focus()
-  }
-
-  handleClick (e) {
-    ReactDOM.findDOMNode(this.refs.finderInput.refs.input).focus()
-  }
-
-  handleKeyDown (e) {
-    if (e.keyCode === 38) {
-      this.selectPrevious()
-      e.preventDefault()
-    }
-
-    if (e.keyCode === 40) {
-      this.selectNext()
-      e.preventDefault()
-    }
-
-    if (e.keyCode === 13) {
-      this.saveToClipboard()
-      e.preventDefault()
-    }
-    if (e.keyCode === 27) {
-      hideFinder()
-      e.preventDefault()
-    }
-  }
-
-  saveToClipboard () {
-    let { activeArticle } = this.props
-    clipboard.writeText(activeArticle.content)
-
-    notify('Saved to Clipboard!', {
-      body: 'Paste it wherever you want!'
-    })
-    hideFinder()
-  }
-
-  handleSearchChange (e) {
-    let { dispatch } = this.props
-
-    dispatch(searchArticle(e.target.value))
-  }
-
-  selectArticle (article) {
-    this.setState({currentArticle: article})
-  }
-
-  selectPrevious () {
-    let { activeArticle, dispatch } = this.props
-    let index = this.refs.finderList.props.articles.indexOf(activeArticle)
-    let previousArticle = this.refs.finderList.props.articles[index - 1]
-    if (previousArticle != null) dispatch(selectArticle(previousArticle.key))
-  }
-
-  selectNext () {
-    let { activeArticle, dispatch } = this.props
-    let index = this.refs.finderList.props.articles.indexOf(activeArticle)
-    let previousArticle = this.refs.finderList.props.articles[index + 1]
-    if (previousArticle != null) dispatch(selectArticle(previousArticle.key))
-  }
-
-  render () {
-    let { articles, activeArticle, status, dispatch } = this.props
-    let saveToClipboard = () => this.saveToClipboard()
-    return (
-      <div onClick={e => this.handleClick(e)} onKeyDown={e => this.handleKeyDown(e)} className='Finder'>
-        <FinderInput
-          handleSearchChange={e => this.handleSearchChange(e)}
-          ref='finderInput'
-          onChange={this.handleChange}
-          value={status.search}
-        />
-        <FinderList
-          ref='finderList'
-          activeArticle={activeArticle}
-          articles={articles}
-          dispatch={dispatch}
-          selectArticle={article => this.selectArticle(article)}
-        />
-        <FinderDetail
-          activeArticle={activeArticle}
-          saveToClipboard={saveToClipboard}
-        />
-      </div>
-    )
-  }
-}
-
-FinderMain.propTypes = {
-  articles: PropTypes.array,
-  activeArticle: PropTypes.shape({
-    key: PropTypes.string,
-    tags: PropTypes.array,
-    title: PropTypes.string,
-    content: PropTypes.string
-  }),
-  status: PropTypes.shape(),
-  dispatch: PropTypes.func
-}
-
-// Ignore invalid key
-function ignoreInvalidKey (key) {
-  return key.length > 0 && !key.match(/^\/\/$/) && !key.match(/^\/$/) && !key.match(/^#$/)
-}
-
-// Build filter object by key
-function buildFilter (key) {
-  if (key.match(/^\/\/.+/)) {
-    return {type: FOLDER_EXACT_FILTER, value: key.match(/^\/\/(.+)$/)[1]}
-  }
-  if (key.match(/^\/.+/)) {
-    return {type: FOLDER_FILTER, value: key.match(/^\/(.+)$/)[1]}
-  }
-  if (key.match(/^#(.+)/)) {
-    return {type: TAG_FILTER, value: key.match(/^#(.+)$/)[1]}
-  }
-  return {type: TEXT_FILTER, value: key}
-}
-
-function remap (state) {
-  let { articles, folders, status } = state
-
-  let filters = status.search.split(' ')
-    .map(key => key.trim())
-    .filter(ignoreInvalidKey)
-    .map(buildFilter)
-
-  let folderExactFilters = filters.filter(filter => filter.type === FOLDER_EXACT_FILTER)
-  let folderFilters = filters.filter(filter => filter.type === FOLDER_FILTER)
-  let textFilters = filters.filter(filter => filter.type === TEXT_FILTER)
-  let tagFilters = filters.filter(filter => filter.type === TAG_FILTER)
-
-  let targetFolders
-  if (folders != null) {
-    let exactTargetFolders = folders.filter(folder => {
-      return _.find(folderExactFilters, filter => folder.name.match(new RegExp(`^${filter.value}$`)))
-    })
-    let fuzzyTargetFolders = folders.filter(folder => {
-      return _.find(folderFilters, filter => folder.name.match(new RegExp(`^${filter.value}`)))
-    })
-    targetFolders = status.targetFolders = exactTargetFolders.concat(fuzzyTargetFolders)
-
-    if (targetFolders.length > 0) {
-      articles = articles.filter(article => {
-        return _.findWhere(targetFolders, {key: article.FolderKey})
-      })
-    }
-
-    if (textFilters.length > 0) {
-      articles = textFilters.reduce((articles, textFilter) => {
-        return articles.filter(article => {
-          return article.title.match(new RegExp(textFilter.value, 'i')) || article.content.match(new RegExp(textFilter.value, 'i'))
-        })
-      }, articles)
-    }
-
-    if (tagFilters.length > 0) {
-      articles = tagFilters.reduce((articles, tagFilter) => {
-        return articles.filter(article => {
-          return _.find(article.tags, tag => tag.match(new RegExp(tagFilter.value, 'i')))
-        })
-      }, articles)
-    }
-  }
-
-  let activeArticle = _.findWhere(articles, {key: status.articleKey})
-  if (activeArticle == null) activeArticle = articles[0]
-
-  console.log(status.search)
-  return {
-    articles,
-    activeArticle,
-    status
-  }
-}
-
-var Finder = connect(remap)(FinderMain)
-var store = createStore(reducer)
-
-function refreshData () {
-  let data = dataStore.getData()
-  store.dispatch(actions.refreshData(data))
-}
-
-window.onfocus = e => {
-  refreshData()
-}
-
-ReactDOM.render((
-  <Provider store={store}>
-    <Finder/>
-  </Provider>
-), document.getElementById('content'), function () {
-  refreshData()
-})

browser/finder/reducer.js

@@ -1,47 +0,0 @@
-import { combineReducers } from 'redux'
-import { SELECT_ARTICLE, SEARCH_ARTICLE, REFRESH_DATA } from './actions'
-
-let initialArticles = []
-let initialFolders = []
-let initialStatus = {
-  articleKey: null,
-  search: ''
-}
-
-function status (state = initialStatus, action) {
-  switch (action.type) {
-    case SELECT_ARTICLE:
-      state.articleKey = action.data.key
-      return Object.assign({}, state)
-    case SEARCH_ARTICLE:
-      state.search = action.data.input
-      return Object.assign({}, state)
-    default:
-      return state
-  }
-}
-
-function articles (state = initialArticles, action) {
-  switch (action.type) {
-    case REFRESH_DATA:
-      return action.data.articles
-    default:
-      return state
-  }
-}
-
-function folders (state = initialFolders, action) {
-  switch (action.type) {
-    case REFRESH_DATA:
-      console.log(action)
-      return action.data.folders
-    default:
-      return state
-  }
-}
-
-export default combineReducers({
-  status,
-  folders,
-  articles
-})

browser/lib/CMLanguageList.js

@@ -0,0 +1,78 @@
+export const languageMaps = {
+  brainfuck: 'Brainfuck',
+  cpp: 'C++',
+  cs: 'C#',
+  clojure: 'Clojure',
+  'clojure-repl': 'ClojureScript',
+  cmake: 'CMake',
+  coffeescript: 'CoffeeScript',
+  crystal: 'Crystal',
+  css: 'CSS',
+  d: 'D',
+  dart: 'Dart',
+  delphi: 'Pascal',
+  diff: 'Diff',
+  django: 'Django',
+  dockerfile: 'Dockerfile',
+  ebnf: 'EBNF',
+  elm: 'Elm',
+  erlang: 'Erlang',
+  'erlang-repl': 'Erlang',
+  fortran: 'Fortran',
+  fsharp: 'F#',
+  gherkin: 'Gherkin',
+  go: 'Go',
+  groovy: 'Groovy',
+  haml: 'HAML',
+  haskell: 'Haskell',
+  haxe: 'Haxe',
+  http: 'HTTP',
+  ini: 'toml',
+  java: 'Java',
+  javascript: 'JavaScript',
+  json: 'JSON',
+  julia: 'Julia',
+  kotlin: 'Kotlin',
+  less: 'LESS',
+  livescript: 'LiveScript',
+  lua: 'Lua',
+  markdown: 'Markdown',
+  mathematica: 'Mathematica',
+  nginx: 'Nginx',
+  nsis: 'NSIS',
+  objectivec: 'Objective-C',
+  ocaml: 'Ocaml',
+  perl: 'Perl',
+  php: 'PHP',
+  powershell: 'PowerShell',
+  properties: 'Properties files',
+  protobuf: 'ProtoBuf',
+  python: 'Python',
+  puppet: 'Puppet',
+  q: 'Q',
+  r: 'R',
+  ruby: 'Ruby',
+  rust: 'Rust',
+  sas: 'SAS',
+  scala: 'Scala',
+  scheme: 'Scheme',
+  scss: 'SCSS',
+  shell: 'Shell',
+  smalltalk: 'Smalltalk',
+  sml: 'SML',
+  sql: 'SQL',
+  stylus: 'Stylus',
+  swift: 'Swift',
+  tcl: 'Tcl',
+  tex: 'LaTex',
+  typescript: 'TypeScript',
+  twig: 'Twig',
+  vbnet: 'VB.NET',
+  vbscript: 'VBScript',
+  verilog: 'Verilog',
+  vhdl: 'VHDL',
+  xml: 'HTML',
+  xquery: 'XQuery',
+  yaml: 'YAML',
+  elixir: 'Elixir'
+}

browser/lib/CSSModules.js

@@ -0,0 +1,5 @@
+import CSSModules from 'react-css-modules'
+
+export default function(component, styles) {
+  return CSSModules(component, styles, { handleNotFoundStyleName: 'log' })
+}

browser/lib/Languages.js

@@ -0,0 +1,90 @@
+const languages = [
+  {
+    name: 'Albanian',
+    locale: 'sq'
+  },
+  {
+    name: 'Chinese (zh-CN)',
+    locale: 'zh-CN'
+  },
+  {
+    name: 'Chinese (zh-TW)',
+    locale: 'zh-TW'
+  },
+  {
+    name: 'Czech',
+    locale: 'cs'
+  },
+  {
+    name: 'Danish',
+    locale: 'da'
+  },
+  {
+    name: 'English',
+    locale: 'en'
+  },
+  {
+    name: 'French',
+    locale: 'fr'
+  },
+  {
+    name: 'German',
+    locale: 'de'
+  },
+  {
+    name: 'Hungarian',
+    locale: 'hu'
+  },
+  {
+    name: 'Japanese',
+    locale: 'ja'
+  },
+  {
+    name: 'Korean',
+    locale: 'ko'
+  },
+  {
+    name: 'Norwegian',
+    locale: 'no'
+  },
+  {
+    name: 'Polish',
+    locale: 'pl'
+  },
+  {
+    name: 'Portuguese (PT-BR)',
+    locale: 'pt-BR'
+  },
+  {
+    name: 'Portuguese (PT-PT)',
+    locale: 'pt-PT'
+  },
+  {
+    name: 'Russian',
+    locale: 'ru'
+  },
+  {
+    name: 'Spanish',
+    locale: 'es-ES'
+  },
+  {
+    name: 'Turkish',
+    locale: 'tr'
+  },
+  {
+    name: 'Thai',
+    locale: 'th'
+  }
+]
+
+module.exports = {
+  getLocales() {
+    return languages.reduce(function(localeList, locale) {
+      localeList.push(locale.locale)
+      return localeList
+    }, [])
+  },
+  getLanguages() {
+    return languages
+  }
+}

browser/lib/Mutable.js

@@ -0,0 +1,106 @@
+class MutableMap {
+  constructor(iterable) {
+    this._map = new Map(iterable)
+    Object.defineProperty(this, 'size', {
+      get: () => this._map.size,
+      set: function(value) {
+        this['size'] = value
+      }
+    })
+  }
+
+  get(...args) {
+    return this._map.get(...args)
+  }
+
+  set(...args) {
+    return this._map.set(...args)
+  }
+
+  delete(...args) {
+    return this._map.delete(...args)
+  }
+
+  has(...args) {
+    return this._map.has(...args)
+  }
+
+  clear(...args) {
+    return this._map.clear(...args)
+  }
+
+  forEach(...args) {
+    return this._map.forEach(...args)
+  }
+
+  [Symbol.iterator]() {
+    return this._map[Symbol.iterator]()
+  }
+
+  map(cb) {
+    const result = []
+    for (const [key, value] of this._map) {
+      result.push(cb(value, key))
+    }
+    return result
+  }
+
+  toJS() {
+    const result = {}
+    for (let [key, value] of this._map) {
+      if (value instanceof MutableSet || value instanceof MutableMap) {
+        value = value.toJS()
+      }
+      result[key] = value
+    }
+    return result
+  }
+}
+
+class MutableSet {
+  constructor(iterable) {
+    this._set = new Set(iterable)
+    Object.defineProperty(this, 'size', {
+      get: () => this._set.size,
+      set: function(value) {
+        this['size'] = value
+      }
+    })
+  }
+
+  add(...args) {
+    return this._set.add(...args)
+  }
+
+  delete(...args) {
+    return this._set.delete(...args)
+  }
+
+  forEach(...args) {
+    return this._set.forEach(...args)
+  }
+
+  [Symbol.iterator]() {
+    return this._set[Symbol.iterator]()
+  }
+
+  map(cb) {
+    const result = []
+    this._set.forEach(function(value, key) {
+      result.push(cb(value, key))
+    })
+
+    return result
+  }
+
+  toJS() {
+    return Array.from(this._set)
+  }
+}
+
+const Mutable = {
+  Map: MutableMap,
+  Set: MutableSet
+}
+
+module.exports = Mutable

browser/lib/RcParser.js

@@ -0,0 +1,21 @@
+import path from 'path'
+import sander from 'sander'
+
+const BOOSTNOTERC = '.boostnoterc'
+const homePath = global.process.env.HOME || global.process.env.USERPROFILE
+const _boostnotercPath = path.join(homePath, BOOSTNOTERC)
+
+export function parse(boostnotercPath = _boostnotercPath) {
+  if (!sander.existsSync(boostnotercPath)) return {}
+  try {
+    return JSON.parse(sander.readFileSync(boostnotercPath).toString())
+  } catch (e) {
+    console.warn(e)
+    console.warn("Your .boostnoterc is broken so it's not used.")
+    return {}
+  }
+}
+
+export default {
+  parse
+}

browser/lib/SnippetManager.js

@@ -0,0 +1,92 @@
+import crypto from 'crypto'
+import fs from 'fs'
+import consts from './consts'
+
+class SnippetManager {
+  constructor() {
+    this.defaultSnippet = [
+      {
+        id: crypto.randomBytes(16).toString('hex'),
+        name: 'Dummy text',
+        prefix: ['lorem', 'ipsum'],
+        content:
+          'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.'
+      }
+    ]
+    this.snippets = []
+    this.expandSnippet = this.expandSnippet.bind(this)
+    this.init = this.init.bind(this)
+    this.assignSnippets = this.assignSnippets.bind(this)
+  }
+
+  init() {
+    if (fs.existsSync(consts.SNIPPET_FILE)) {
+      try {
+        this.snippets = JSON.parse(
+          fs.readFileSync(consts.SNIPPET_FILE, { encoding: 'UTF-8' })
+        )
+      } catch (error) {
+        console.log('Error while parsing snippet file')
+      }
+      return
+    }
+    fs.writeFileSync(
+      consts.SNIPPET_FILE,
+      JSON.stringify(this.defaultSnippet, null, 4),
+      'utf8'
+    )
+    this.snippets = this.defaultSnippet
+  }
+
+  assignSnippets(snippets) {
+    this.snippets = snippets
+  }
+
+  expandSnippet(wordBeforeCursor, cursor, cm) {
+    const templateCursorString = ':{}'
+    for (let i = 0; i < this.snippets.length; i++) {
+      if (this.snippets[i].prefix.indexOf(wordBeforeCursor.text) === -1) {
+        continue
+      }
+      if (this.snippets[i].content.indexOf(templateCursorString) !== -1) {
+        const snippetLines = this.snippets[i].content.split('\n')
+        let cursorLineNumber = 0
+        let cursorLinePosition = 0
+
+        let cursorIndex
+        for (let j = 0; j < snippetLines.length; j++) {
+          cursorIndex = snippetLines[j].indexOf(templateCursorString)
+
+          if (cursorIndex !== -1) {
+            cursorLineNumber = j
+            cursorLinePosition = cursorIndex
+
+            break
+          }
+        }
+
+        cm.replaceRange(
+          this.snippets[i].content.replace(templateCursorString, ''),
+          wordBeforeCursor.range.from,
+          wordBeforeCursor.range.to
+        )
+        cm.setCursor({
+          line: cursor.line + cursorLineNumber,
+          ch: cursorLinePosition + cursor.ch - wordBeforeCursor.text.length
+        })
+      } else {
+        cm.replaceRange(
+          this.snippets[i].content,
+          wordBeforeCursor.range.from,
+          wordBeforeCursor.range.to
+        )
+      }
+      return true
+    }
+
+    return false
+  }
+}
+
+const manager = new SnippetManager()
+export default manager

browser/lib/TextEditorInterface.js

@@ -0,0 +1,109 @@
+import { Point } from '@susisu/mte-kernel'
+
+export default class TextEditorInterface {
+  constructor(editor) {
+    this.editor = editor
+    this.doc = editor.getDoc()
+    this.transaction = false
+  }
+
+  getCursorPosition() {
+    const { line, ch } = this.doc.getCursor()
+    return new Point(line, ch)
+  }
+
+  setCursorPosition(pos) {
+    this.doc.setCursor({
+      line: pos.row,
+      ch: pos.column
+    })
+  }
+
+  setSelectionRange(range) {
+    this.doc.setSelection(
+      { line: range.start.row, ch: range.start.column },
+      { line: range.end.row, ch: range.end.column }
+    )
+  }
+
+  getLastRow() {
+    return this.doc.lineCount() - 1
+  }
+
+  acceptsTableEdit() {
+    return true
+  }
+
+  getLine(row) {
+    return this.doc.getLine(row)
+  }
+
+  insertLine(row, line) {
+    const lastRow = this.getLastRow()
+    if (row > lastRow) {
+      const lastLine = this.getLine(lastRow)
+      this.doc.replaceRange(
+        '\n' + line,
+        { line: lastRow, ch: lastLine.length },
+        { line: lastRow, ch: lastLine.length }
+      )
+    } else {
+      this.doc.replaceRange(
+        line + '\n',
+        { line: row, ch: 0 },
+        { line: row, ch: 0 }
+      )
+    }
+  }
+
+  deleteLine(row) {
+    const lastRow = this.getLastRow()
+    if (row >= lastRow) {
+      if (lastRow > 0) {
+        const preLastLine = this.getLine(lastRow - 1)
+        const lastLine = this.getLine(lastRow)
+        this.doc.replaceRange(
+          '',
+          { line: lastRow - 1, ch: preLastLine.length },
+          { line: lastRow, ch: lastLine.length }
+        )
+      } else {
+        const lastLine = this.getLine(lastRow)
+        this.doc.replaceRange(
+          '',
+          { line: lastRow, ch: 0 },
+          { line: lastRow, ch: lastLine.length }
+        )
+      }
+    } else {
+      this.doc.replaceRange('', { line: row, ch: 0 }, { line: row + 1, ch: 0 })
+    }
+  }
+
+  replaceLines(startRow, endRow, lines) {
+    const lastRow = this.getLastRow()
+    if (endRow > lastRow) {
+      const lastLine = this.getLine(lastRow)
+      this.doc.replaceRange(
+        lines.join('\n'),
+        { line: startRow, ch: 0 },
+        { line: lastRow, ch: lastLine.length }
+      )
+    } else {
+      this.doc.replaceRange(
+        lines.join('\n') + '\n',
+        { line: startRow, ch: 0 },
+        { line: endRow, ch: 0 }
+      )
+    }
+  }
+
+  transact(func) {
+    this.transaction = true
+    func()
+    this.transaction = false
+    if (this.onDidFinishTransaction) {
+      this.onDidFinishTransaction.call(undefined)
+    }
+  }
+}

browser/lib/confirmDeleteNote.js

@@ -0,0 +1,24 @@
+import electron from 'electron'
+import i18n from 'browser/lib/i18n'
+const { remote } = electron
+const { dialog } = remote
+
+export function confirmDeleteNote(confirmDeletion, permanent) {
+  if (confirmDeletion || permanent) {
+    const alertConfig = {
+      type: 'warning',
+      message: i18n.__('Confirm note deletion'),
+      detail: i18n.__('This will permanently remove this note.'),
+      buttons: [i18n.__('Confirm'), i18n.__('Cancel')]
+    }
+
+    const dialogButtonIndex = dialog.showMessageBox(
+      remote.getCurrentWindow(),
+      alertConfig
+    )
+
+    return dialogButtonIndex === 0
+  }
+
+  return true
+}

browser/lib/consts.js

@@ -0,0 +1,91 @@
+const path = require('path')
+const fs = require('sander')
+const { remote } = require('electron')
+const { app } = remote
+
+const CODEMIRROR_THEME_PATH = 'node_modules/codemirror/theme'
+const CODEMIRROR_EXTRA_THEME_PATH = 'extra_scripts/codemirror/theme'
+
+const isProduction = process.env.NODE_ENV === 'production'
+
+const paths = [
+  isProduction
+    ? path.join(app.getAppPath(), CODEMIRROR_THEME_PATH)
+    : path.resolve(CODEMIRROR_THEME_PATH),
+  isProduction
+    ? path.join(app.getAppPath(), CODEMIRROR_EXTRA_THEME_PATH)
+    : path.resolve(CODEMIRROR_EXTRA_THEME_PATH)
+]
+
+const themes = paths
+  .map(directory =>
+    fs.readdirSync(directory).map(file => {
+      const name = file.substring(0, file.lastIndexOf('.'))
+
+      return {
+        name,
+        path: path.join(directory, file),
+        className: `cm-s-${name}`
+      }
+    })
+  )
+  .reduce((accumulator, value) => accumulator.concat(value), [])
+  .sort((a, b) => a.name.localeCompare(b.name))
+
+themes.splice(
+  themes.findIndex(({ name }) => name === 'solarized'),
+  1,
+  {
+    name: 'solarized dark',
+    path: path.join(paths[0], 'solarized.css'),
+    className: `cm-s-solarized cm-s-dark`
+  },
+  {
+    name: 'solarized light',
+    path: path.join(paths[0], 'solarized.css'),
+    className: `cm-s-solarized cm-s-light`
+  }
+)
+themes.splice(0, 0, {
+  name: 'default',
+  path: path.join(paths[0], 'elegant.css'),
+  className: `cm-s-default`
+})
+
+const snippetFile =
+  process.env.NODE_ENV !== 'test'
+    ? path.join(app.getPath('userData'), 'snippets.json')
+    : '' // return nothing as we specified different path to snippets.json in test
+
+const consts = {
+  FOLDER_COLORS: [
+    '#E10051',
+    '#FF8E00',
+    '#E8D252',
+    '#3FD941',
+    '#30D5C8',
+    '#2BA5F7',
+    '#B013A4'
+  ],
+  FOLDER_COLOR_NAMES: [
+    'Razzmatazz (Red)',
+    'Pizazz (Orange)',
+    'Confetti (Yellow)',
+    'Emerald (Green)',
+    'Turquoise',
+    'Dodger Blue',
+    'Violet Eggplant'
+  ],
+  THEMES: themes,
+  SNIPPET_FILE: snippetFile,
+  DEFAULT_EDITOR_FONT_FAMILY: [
+    'Monaco',
+    'Menlo',
+    'Ubuntu Mono',
+    'Consolas',
+    'source-code-pro',
+    'monospace'
+  ]
+}
+
+module.exports = consts

browser/lib/context.js

@@ -0,0 +1,17 @@
+const { remote } = require('electron')
+const { Menu, MenuItem } = remote
+
+function popup(templates) {
+  const menu = new Menu()
+  templates.forEach(item => {
+    menu.append(new MenuItem(item))
+  })
+  menu.popup(remote.getCurrentWindow())
+}
+
+const context = {
+  popup
+}
+
+module.export = context
+export default context

browser/lib/contextMenuBuilder.js

@@ -0,0 +1,152 @@
+import i18n from 'browser/lib/i18n'
+import fs from 'fs'
+
+const { remote } = require('electron')
+const { Menu } = remote.require('electron')
+const { clipboard } = remote.require('electron')
+const { shell } = remote.require('electron')
+const spellcheck = require('./spellcheck')
+const uri2path = require('file-uri-to-path')
+
+/**
+ * Creates the context menu that is shown when there is a right click in the editor of a (not-snippet) note.
+ * If the word is does not contains a spelling error (determined by the 'error style'), no suggestions for corrections are requested
+ * => they are not visible in the context menu
+ * @param editor CodeMirror editor
+ * @param {MouseEvent} event that has triggered the creation of the context menu
+ * @returns {Electron.Menu} The created electron context menu
+ */
+const buildEditorContextMenu = function(editor, event) {
+  if (
+    editor == null ||
+    event == null ||
+    event.pageX == null ||
+    event.pageY == null
+  ) {
+    return null
+  }
+  const cursor = editor.coordsChar({ left: event.pageX, top: event.pageY })
+  const wordRange = editor.findWordAt(cursor)
+  const word = editor.getRange(wordRange.anchor, wordRange.head)
+  const existingMarks = editor.findMarks(wordRange.anchor, wordRange.head) || []
+  let isMisspelled = false
+  for (const mark of existingMarks) {
+    if (mark.className === spellcheck.getCSSClassName()) {
+      isMisspelled = true
+      break
+    }
+  }
+  let suggestion = []
+  if (isMisspelled) {
+    suggestion = spellcheck.getSpellingSuggestion(word)
+  }
+
+  const selection = {
+    isMisspelled: isMisspelled,
+    spellingSuggestions: suggestion
+  }
+  const template = [
+    {
+      role: 'cut'
+    },
+    {
+      role: 'copy'
+    },
+    {
+      role: 'paste'
+    },
+    {
+      role: 'selectall'
+    }
+  ]
+
+  if (selection.isMisspelled) {
+    const suggestions = selection.spellingSuggestions
+    template.unshift.apply(
+      template,
+      suggestions
+        .map(function(suggestion) {
+          return {
+            label: suggestion,
+            click: function(suggestion) {
+              if (editor != null) {
+                editor.replaceRange(
+                  suggestion.label,
+                  wordRange.anchor,
+                  wordRange.head
+                )
+              }
+            }
+          }
+        })
+        .concat({
+          type: 'separator'
+        })
+    )
+  }
+  return Menu.buildFromTemplate(template)
+}
+
+/**
+ * Creates the context menu that is shown when there is a right click Markdown preview of a (not-snippet) note.
+ * @param {MarkdownPreview} markdownPreview
+ * @param {MouseEvent} event that has triggered the creation of the context menu
+ * @returns {Electron.Menu} The created electron context menu
+ */
+const buildMarkdownPreviewContextMenu = function(markdownPreview, event) {
+  if (
+    markdownPreview == null ||
+    event == null ||
+    event.pageX == null ||
+    event.pageY == null
+  ) {
+    return null
+  }
+
+  // Default context menu inclusions
+  const template = [
+    {
+      role: 'copy'
+    },
+    {
+      role: 'selectall'
+    }
+  ]
+
+  if (
+    event.target.tagName.toLowerCase() === 'a' &&
+    event.target.getAttribute('href')
+  ) {
+    // Link opener for files on the local system pointed to by href
+    const href = event.target.href
+    const isLocalFile = href.startsWith('file:')
+    if (isLocalFile) {
+      const absPath = uri2path(href)
+      try {
+        if (fs.lstatSync(absPath).isFile()) {
+          template.push({
+            label: i18n.__('Show in explorer'),
+            click: e => shell.showItemInFolder(absPath)
+          })
+        }
+      } catch (e) {
+        console.log(
+          'Error while evaluating if the file is locally available',
+          e
+        )
+      }
+    }
+
+    // Add option to context menu to copy url
+    template.push({
+      label: i18n.__('Copy Url'),
+      click: e => clipboard.writeText(href)
+    })
+  }
+  return Menu.buildFromTemplate(template)
+}
+
+module.exports = {
+  buildEditorContextMenu: buildEditorContextMenu,
+  buildMarkdownPreviewContextMenu: buildMarkdownPreviewContextMenu
+}

browser/lib/convertModeName.js

@@ -0,0 +1,14 @@
+export default function convertModeName(name) {
+  switch (name) {
+    case 'ejs':
+      return 'Embedded Javascript'
+    case 'html_ruby':
+      return 'Embedded Ruby'
+    case 'objectivec':
+      return 'Objective C'
+    case 'text':
+      return 'Plain Text'
+    default:
+      return name
+  }
+}

browser/lib/customMeta.js

@@ -0,0 +1,21 @@
+import CodeMirror from 'codemirror'
+import 'codemirror-mode-elixir'
+
+const stylusCodeInfo = CodeMirror.modeInfo.find(info => info.name === 'Stylus')
+if (stylusCodeInfo == null) {
+  CodeMirror.modeInfo.push({
+    name: 'Stylus',
+    mime: 'text/x-styl',
+    mode: 'stylus',
+    ext: ['styl'],
+    alias: ['styl']
+  })
+} else {
+  stylusCodeInfo.alias = ['styl']
+}
+CodeMirror.modeInfo.push({
+  name: 'Elixir',
+  mime: 'text/x-elixir',
+  mode: 'elixir',
+  ext: ['ex']
+})

browser/lib/date-formatter.js

@@ -0,0 +1,18 @@
+/**
+ * @fileoverview Formatting date string.
+ */
+import moment from 'moment'
+
+/**
+ * @description Return date string. For example, 'Sep.9, 2016 12:00'.
+ * @param {mixed}
+ * @return {string}
+ */
+export function formatDate(date) {
+  const m = moment(date)
+  if (!m.isValid()) {
+    throw Error('Invalid argument.')
+  }
+
+  return m.format('MMM D, gggg H:mm')
+}

browser/lib/findNoteTitle.js

@@ -0,0 +1,64 @@
+export function findNoteTitle(
+  value,
+  enableFrontMatterTitle,
+  frontMatterTitleField = 'title'
+) {
+  const splitted = value.split('\n')
+  let title = null
+  let isInsideCodeBlock = false
+
+  if (splitted[0] === '---') {
+    let line = 0
+    while (++line < splitted.length) {
+      if (
+        enableFrontMatterTitle &&
+        splitted[line].startsWith(frontMatterTitleField + ':')
+      ) {
+        title = splitted[line]
+          .substring(frontMatterTitleField.length + 1)
+          .trim()
+
+        break
+      }
+      if (splitted[line] === '---') {
+        splitted.splice(0, line + 1)
+
+        break
+      }
+    }
+  }
+
+  if (title === null) {
+    splitted.some((line, index) => {
+      const trimmedLine = line.trim()
+      const trimmedNextLine =
+        splitted[index + 1] === undefined ? '' : splitted[index + 1].trim()
+      if (trimmedLine.match('```')) {
+        isInsideCodeBlock = !isInsideCodeBlock
+      }
+      if (
+        isInsideCodeBlock === false &&
+        (trimmedLine.match(/^# +/) || trimmedNextLine.match(/^=+$/))
+      ) {
+        title = trimmedLine
+        return true
+      }
+    })
+  }
+
+  if (title === null) {
+    title = ''
+    splitted.some(line => {
+      if (line.trim().length > 0) {
+        title = line.trim()
+        return true
+      }
+    })
+  }
+
+  return title
+}
+
+export default {
+  findNoteTitle
+}

browser/lib/findStorage.js

@@ -0,0 +1,15 @@
+const _ = require('lodash')
+
+export function findStorage(storageKey) {
+  const cachedStorageList = JSON.parse(localStorage.getItem('storages'))
+  if (!_.isArray(cachedStorageList))
+    throw new Error("Target storage doesn't exist.")
+  const storage = _.find(cachedStorageList, { key: storageKey })
+  if (storage === undefined) throw new Error("Target storage doesn't exist.")
+
+  return storage
+}
+
+export default {
+  findStorage
+}

browser/lib/getTodoStatus.js

@@ -0,0 +1,25 @@
+export function getTodoStatus(content) {
+  const splitted = content.split('\n')
+  let numberOfTodo = 0
+  let numberOfCompletedTodo = 0
+
+  splitted.forEach(line => {
+    const trimmedLine = line.trim().replace(/^(>\s*)*/, '')
+    if (trimmedLine.match(/^[+\-*] \[(\s|x)] ./i)) {
+      numberOfTodo++
+    }
+    if (trimmedLine.match(/^[+\-*] \[x] ./i)) {
+      numberOfCompletedTodo++
+    }
+  })
+
+  return {
+    total: numberOfTodo,
+    completed: numberOfCompletedTodo
+  }
+}
+
+export function getTodoPercentageOfCompleted(content) {
+  const state = getTodoStatus(content)
+  return Math.floor((state.completed / state.total) * 100)
+}

browser/lib/htmlTextHelper.js

@@ -0,0 +1,45 @@
+/**
+ * @fileoverview Text trimmer for html.
+ */
+
+/**
+ * @param {string} text
+ * @return {string}
+ */
+
+export function decodeEntities(text) {
+  var entities = [
+    ['apos', "'"],
+    ['amp', '&'],
+    ['lt', '<'],
+    ['gt', '>'],
+    ['#63', '\\?'],
+    ['#36', '\\$']
+  ]
+
+  for (var i = 0, max = entities.length; i < max; ++i) {
+    text = text.replace(new RegExp(`&${entities[i][0]};`, 'g'), entities[i][1])
+  }
+
+  return text
+}
+
+export function encodeEntities(text) {
+  const entities = [
+    ["'", 'apos'],
+    ['<', 'lt'],
+    ['>', 'gt'],
+    ['\\?', '#63'],
+    ['\\$', '#36']
+  ]
+
+  entities.forEach(entity => {
+    text = text.replace(new RegExp(entity[0], 'g'), `&${entity[1]};`)
+  })
+  return text
+}
+
+export default {
+  decodeEntities,
+  encodeEntities
+}

browser/lib/i18n.js

@@ -0,0 +1,18 @@
+const path = require('path')
+const { remote } = require('electron')
+const { app } = remote
+const { getLocales } = require('./Languages.js')
+
+// load package for localization
+const i18n = new (require('i18n-2'))({
+  // setup some locales - other locales default to the first locale
+  locales: getLocales(),
+  extension: '.json',
+  directory:
+    process.env.NODE_ENV === 'production'
+      ? path.join(app.getAppPath(), './locales')
+      : path.resolve('./locales'),
+  devMode: false
+})
+
+export default i18n

browser/lib/keygen.js

@@ -0,0 +1,10 @@
+const crypto = require('crypto')
+const uuidv4 = require('uuid/v4')
+
+module.exports = function(uuid) {
+  if (typeof uuid === typeof true && uuid) {
+    return uuidv4()
+  }
+  const length = 10
+  return crypto.randomBytes(length).toString('hex')
+}

browser/lib/markdown-it-deflist.js

@@ -0,0 +1,282 @@
+'use strict'
+
+module.exports = function definitionListPlugin(md) {
+  var isSpace = md.utils.isSpace
+
+  // Search `[:~][\n ]`, returns next pos after marker on success
+  // or -1 on fail.
+  function skipMarker(state, line) {
+    let start = state.bMarks[line] + state.tShift[line]
+    const max = state.eMarks[line]
+
+    if (start >= max) {
+      return -1
+    }
+
+    // Check bullet
+    const marker = state.src.charCodeAt(start++)
+    if (marker !== 0x7e /* ~ */ && marker !== 0x3a /* : */) {
+      return -1
+    }
+
+    const pos = state.skipSpaces(start)
+
+    // require space after ":"
+    if (start === pos) {
+      return -1
+    }
+
+    return start
+  }
+
+  function markTightParagraphs(state, idx) {
+    const level = state.level + 2
+
+    let i
+    let l
+    for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
+      if (
+        state.tokens[i].level === level &&
+        state.tokens[i].type === 'paragraph_open'
+      ) {
+        state.tokens[i + 2].hidden = true
+        state.tokens[i].hidden = true
+        i += 2
+      }
+    }
+  }
+
+  function deflist(state, startLine, endLine, silent) {
+    var ch,
+      contentStart,
+      ddLine,
+      dtLine,
+      itemLines,
+      listLines,
+      listTokIdx,
+      max,
+      newEndLine,
+      nextLine,
+      offset,
+      oldDDIndent,
+      oldIndent,
+      oldLineMax,
+      oldParentType,
+      oldSCount,
+      oldTShift,
+      oldTight,
+      pos,
+      prevEmptyEnd,
+      tight,
+      token
+
+    if (silent) {
+      // quirk: validation mode validates a dd block only, not a whole deflist
+      if (state.ddIndent < 0) {
+        return false
+      }
+      return skipMarker(state, startLine) >= 0
+    }
+
+    nextLine = startLine + 1
+    if (nextLine >= endLine) {
+      return false
+    }
+
+    if (state.isEmpty(nextLine)) {
+      nextLine++
+      if (nextLine >= endLine) {
+        return false
+      }
+    }
+
+    if (state.sCount[nextLine] < state.blkIndent) {
+      return false
+    }
+    contentStart = skipMarker(state, nextLine)
+    if (contentStart < 0) {
+      return false
+    }
+
+    // Start list
+    listTokIdx = state.tokens.length
+    tight = true
+
+    token = state.push('dl_open', 'dl', 1)
+    token.map = listLines = [startLine, 0]
+
+    //
+    // Iterate list items
+    //
+
+    dtLine = startLine
+    ddLine = nextLine
+
+    // One definition list can contain multiple DTs,
+    // and one DT can be followed by multiple DDs.
+    //
+    // Thus, there is two loops here, and label is
+    // needed to break out of the second one
+    //
+    /* eslint no-labels:0,block-scoped-var:0 */
+    OUTER: for (;;) {
+      prevEmptyEnd = false
+
+      token = state.push('dt_open', 'dt', 1)
+      token.map = [dtLine, dtLine]
+
+      token = state.push('inline', '', 0)
+      token.map = [dtLine, dtLine]
+      token.content = state
+        .getLines(dtLine, dtLine + 1, state.blkIndent, false)
+        .trim()
+      token.children = []
+
+      token = state.push('dt_close', 'dt', -1)
+
+      for (;;) {
+        token = state.push('dd_open', 'dd', 1)
+        token.map = itemLines = [ddLine, 0]
+
+        pos = contentStart
+        max = state.eMarks[ddLine]
+        offset =
+          state.sCount[ddLine] +
+          contentStart -
+          (state.bMarks[ddLine] + state.tShift[ddLine])
+
+        while (pos < max) {
+          ch = state.src.charCodeAt(pos)
+
+          if (isSpace(ch)) {
+            if (ch === 0x09) {
+              offset += 4 - (offset % 4)
+            } else {
+              offset++
+            }
+          } else {
+            break
+          }
+
+          pos++
+        }
+
+        contentStart = pos
+
+        oldTight = state.tight
+        oldDDIndent = state.ddIndent
+        oldIndent = state.blkIndent
+        oldTShift = state.tShift[ddLine]
+        oldSCount = state.sCount[ddLine]
+        oldParentType = state.parentType
+        state.blkIndent = state.ddIndent = state.sCount[ddLine] + 2
+        state.tShift[ddLine] = contentStart - state.bMarks[ddLine]
+        state.sCount[ddLine] = offset
+        state.tight = true
+        state.parentType = 'deflist'
+
+        newEndLine = ddLine
+        while (
+          ++newEndLine < endLine &&
+          (state.sCount[newEndLine] >= state.sCount[ddLine] ||
+            state.isEmpty(newEndLine))
+        ) {}
+
+        oldLineMax = state.lineMax
+        state.lineMax = newEndLine
+
+        state.md.block.tokenize(state, ddLine, newEndLine, true)
+
+        state.lineMax = oldLineMax
+
+        // If any of list item is tight, mark list as tight
+        if (!state.tight || prevEmptyEnd) {
+          tight = false
+        }
+        // Item become loose if finish with empty line,
+        // but we should filter last element, because it means list finish
+        prevEmptyEnd = state.line - ddLine > 1 && state.isEmpty(state.line - 1)
+
+        state.tShift[ddLine] = oldTShift
+        state.sCount[ddLine] = oldSCount
+        state.tight = oldTight
+        state.parentType = oldParentType
+        state.blkIndent = oldIndent
+        state.ddIndent = oldDDIndent
+
+        token = state.push('dd_close', 'dd', -1)
+
+        itemLines[1] = nextLine = state.line
+
+        if (nextLine >= endLine) {
+          break OUTER
+        }
+
+        if (state.sCount[nextLine] < state.blkIndent) {
+          break OUTER
+        }
+        contentStart = skipMarker(state, nextLine)
+        if (contentStart < 0) {
+          break
+        }
+
+        ddLine = nextLine
+
+        // go to the next loop iteration:
+        // insert DD tag and repeat checking
+      }
+
+      if (nextLine >= endLine) {
+        break
+      }
+      dtLine = nextLine
+
+      if (state.isEmpty(dtLine)) {
+        break
+      }
+      if (state.sCount[dtLine] < state.blkIndent) {
+        break
+      }
+
+      ddLine = dtLine + 1
+      if (ddLine >= endLine) {
+        break
+      }
+      if (state.isEmpty(ddLine)) {
+        ddLine++
+      }
+      if (ddLine >= endLine) {
+        break
+      }
+
+      if (state.sCount[ddLine] < state.blkIndent) {
+        break
+      }
+      contentStart = skipMarker(state, ddLine)
+      if (contentStart < 0) {
+        break
+      }
+
+      // go to the next loop iteration:
+      // insert DT and DD tags and repeat checking
+    }
+
+    // Finilize list
+    token = state.push('dl_close', 'dl', -1)
+
+    listLines[1] = nextLine
+
+    state.line = nextLine
+
+    // mark paragraphs tight if needed
+    if (tight) {
+      markTightParagraphs(state, listTokIdx)
+    }
+
+    return true
+  }
+
+  md.block.ruler.before('paragraph', 'deflist', deflist, {
+    alt: ['paragraph', 'reference']
+  })
+}

browser/lib/markdown-it-fence.js

@@ -0,0 +1,141 @@
+'use strict'
+
+module.exports = function(md, renderers, defaultRenderer) {
+  const paramsRE = /^[ \t]*([\w+#-]+)?(?:\(((?:\s*\w[-\w]*(?:=(?:'(?:.*?[^\\])?'|"(?:.*?[^\\])?"|(?:[^'"][^\s]*)))?)*)\))?(?::([^:]*)(?::(\d+))?)?\s*$/
+
+  function fence(state, startLine, endLine, silent) {
+    let pos = state.bMarks[startLine] + state.tShift[startLine]
+    let max = state.eMarks[startLine]
+
+    if (state.sCount[startLine] - state.blkIndent >= 4 || pos + 3 > max) {
+      return false
+    }
+
+    const marker = state.src.charCodeAt(pos)
+    if (marker !== 0x7e /* ~ */ && marker !== 0x60 /* ` */) {
+      return false
+    }
+
+    let mem = pos
+    pos = state.skipChars(pos, marker)
+
+    let len = pos - mem
+    if (len < 3) {
+      return false
+    }
+
+    const markup = state.src.slice(mem, pos)
+    const params = state.src.slice(pos, max)
+
+    if (silent) {
+      return true
+    }
+
+    let nextLine = startLine
+    let haveEndMarker = false
+
+    while (true) {
+      nextLine++
+      if (nextLine >= endLine) {
+        break
+      }
+
+      pos = mem = state.bMarks[nextLine] + state.tShift[nextLine]
+      max = state.eMarks[nextLine]
+
+      if (pos < max && state.sCount[nextLine] < state.blkIndent) {
+        break
+      }
+      if (
+        state.src.charCodeAt(pos) !== marker ||
+        state.sCount[nextLine] - state.blkIndent >= 4
+      ) {
+        continue
+      }
+
+      pos = state.skipChars(pos, marker)
+
+      if (pos - mem < len) {
+        continue
+      }
+
+      pos = state.skipSpaces(pos)
+
+      if (pos >= max) {
+        haveEndMarker = true
+        break
+      }
+    }
+
+    len = state.sCount[startLine]
+    state.line = nextLine + (haveEndMarker ? 1 : 0)
+
+    const parameters = {}
+    let langType = ''
+    let fileName = ''
+    let firstLineNumber = 1
+
+    let match = paramsRE.exec(params)
+    if (match) {
+      if (match[1]) {
+        langType = match[1]
+      }
+      if (match[3]) {
+        fileName = match[3]
+      }
+      if (match[4]) {
+        firstLineNumber = parseInt(match[4], 10)
+      }
+
+      if (match[2]) {
+        const params = match[2]
+        const regex = /(\w[-\w]*)(?:=(?:'(.*?[^\\])?'|"(.*?[^\\])?"|([^'"][^\s]*)))?/g
+
+        let name, value
+        while ((match = regex.exec(params))) {
+          name = match[1]
+          value = match[2] || match[3] || match[4] || null
+
+          const height = /^(\d+)h$/.exec(name)
+          if (height && !value) {
+            parameters.height = height[1]
+          } else {
+            parameters[name] = value
+          }
+        }
+      }
+    }
+
+    let token
+    if (renderers[langType]) {
+      token = state.push(`${langType}_fence`, 'div', 0)
+    } else {
+      token = state.push('_fence', 'code', 0)
+    }
+
+    token.langType = langType
+    token.fileName = fileName
+    token.firstLineNumber = firstLineNumber
+    token.parameters = parameters
+
+    token.content = state.getLines(startLine + 1, nextLine, len, true)
+    token.markup = markup
+    token.map = [startLine, state.line]
+
+    return true
+  }
+
+  md.block.ruler.before('fence', '_fence', fence, {
+    alt: ['paragraph', 'reference', 'blockquote', 'list']
+  })
+
+  for (const name in renderers) {
+    md.renderer.rules[`${name}_fence`] = (tokens, index) =>
+      renderers[name](tokens[index])
+  }
+
+  if (defaultRenderer) {
+    md.renderer.rules['_fence'] = (tokens, index) =>
+      defaultRenderer(tokens[index])
+  }
+}

browser/lib/markdown-it-frontmatter.js

@@ -0,0 +1,29 @@
+'use strict'
+
+module.exports = function frontMatterPlugin(md) {
+  function frontmatter(state, startLine, endLine, silent) {
+    if (
+      startLine !== 0 ||
+      state.src.substr(startLine, state.eMarks[0]) !== '---'
+    ) {
+      return false
+    }
+
+    let line = 0
+    while (++line < state.lineMax) {
+      if (
+        state.src.substring(state.bMarks[line], state.eMarks[line]) === '---'
+      ) {
+        state.line = line + 1
+
+        return true
+      }
+    }
+
+    return false
+  }
+
+  md.block.ruler.before('table', 'frontmatter', frontmatter, {
+    alt: ['paragraph', 'reference', 'blockquote', 'list']
+  })
+}

browser/lib/markdown-it-sanitize-html.js

@@ -0,0 +1,141 @@
+'use strict'
+
+import sanitizeHtml from 'sanitize-html'
+import { escapeHtmlCharacters } from './utils'
+import url from 'url'
+
+module.exports = function sanitizePlugin(md, options) {
+  options = options || {}
+
+  md.core.ruler.after('linkify', 'sanitize_inline', state => {
+    for (let tokenIdx = 0; tokenIdx < state.tokens.length; tokenIdx++) {
+      if (state.tokens[tokenIdx].type === 'html_block') {
+        state.tokens[tokenIdx].content = sanitizeHtml(
+          state.tokens[tokenIdx].content,
+          options
+        )
+      }
+      if (state.tokens[tokenIdx].type.match(/.*_fence$/)) {
+        // escapeHtmlCharacters has better performance
+        state.tokens[tokenIdx].content = escapeHtmlCharacters(
+          state.tokens[tokenIdx].content,
+          { skipSingleQuote: true }
+        )
+      }
+      if (state.tokens[tokenIdx].type === 'inline') {
+        const inlineTokens = state.tokens[tokenIdx].children
+        for (let childIdx = 0; childIdx < inlineTokens.length; childIdx++) {
+          if (inlineTokens[childIdx].type === 'html_inline') {
+            inlineTokens[childIdx].content = sanitizeInline(
+              inlineTokens[childIdx].content,
+              options
+            )
+          }
+        }
+      }
+    }
+  })
+}
+
+const tagRegex = /<([A-Z][A-Z0-9]*)\s*((?:\s*[A-Z][A-Z0-9]*(?:=("|')(?:[^\3]+?)\3)?)*)\s*\/?>|<\/([A-Z][A-Z0-9]*)\s*>/i
+const attributesRegex = /([A-Z][A-Z0-9]*)(?:=("|')([^\2]+?)\2)?/gi
+
+function sanitizeInline(html, options) {
+  let match = tagRegex.exec(html)
+  if (!match) {
+    return ''
+  }
+
+  const {
+    allowedTags,
+    allowedAttributes,
+    selfClosing,
+    allowedSchemesAppliedToAttributes
+  } = options
+
+  if (match[1] !== undefined) {
+    // opening tag
+    const tag = match[1].toLowerCase()
+    if (allowedTags.indexOf(tag) === -1) {
+      return ''
+    }
+
+    const attributes = match[2]
+
+    let attrs = ''
+    let name
+    let value
+
+    while ((match = attributesRegex.exec(attributes))) {
+      name = match[1].toLowerCase()
+      value = match[3]
+
+      if (
+        allowedAttributes['*'].indexOf(name) !== -1 ||
+        (allowedAttributes[tag] && allowedAttributes[tag].indexOf(name) !== -1)
+      ) {
+        if (allowedSchemesAppliedToAttributes.indexOf(name) !== -1) {
+          if (
+            naughtyHRef(value, options) ||
+            (tag === 'iframe' &&
+              name === 'src' &&
+              naughtyIFrame(value, options))
+          ) {
+            continue
+          }
+        }
+
+        attrs += ` ${name}`
+        if (match[2]) {
+          attrs += `="${value}"`
+        }
+      }
+    }
+
+    if (selfClosing.indexOf(tag) === -1) {
+      return '<' + tag + attrs + '>'
+    } else {
+      return '<' + tag + attrs + ' />'
+    }
+  } else {
+    // closing tag
+    if (allowedTags.indexOf(match[4].toLowerCase()) !== -1) {
+      return html
+    } else {
+      return ''
+    }
+  }
+}
+
+function naughtyHRef(href, options) {
+  // href = href.replace(/[\x00-\x20]+/g, '')
+  if (!href) {
+    // No href
+    return false
+  }
+  href = href.replace(/<\!\-\-.*?\-\-\>/g, '')
+
+  const matches = href.match(/^([a-zA-Z]+)\:/)
+  if (!matches) {
+    if (href.match(/^[\/\\]{2}/)) {
+      return !options.allowProtocolRelative
+    }
+
+    // No scheme
+    return false
+  }
+
+  const scheme = matches[1].toLowerCase()
+
+  return options.allowedSchemes.indexOf(scheme) === -1
+}
+
+function naughtyIFrame(src, options) {
+  try {
+    const parsed = url.parse(src, false, true)
+
+    return options.allowedIframeHostnames.index(parsed.hostname) === -1
+  } catch (e) {
+    return true
+  }
+}

browser/lib/markdown-toc-generator.js

@@ -0,0 +1,104 @@
+/**
+ * @fileoverview Markdown table of contents generator
+ */
+
+import { EOL } from 'os'
+import toc from 'markdown-toc'
+import mdlink from 'markdown-link'
+import slugify from './slugify'
+
+const hasProp = Object.prototype.hasOwnProperty
+
+/**
+ * From @enyaxu/markdown-it-anchor
+ */
+function uniqueSlug(slug, slugs, opts) {
+  let uniq = slug
+  let i = opts.uniqueSlugStartIndex
+  while (hasProp.call(slugs, uniq)) uniq = `${slug}-${i++}`
+  slugs[uniq] = true
+  return uniq
+}
+
+function linkify(token) {
+  token.content = mdlink(token.content, `#${decodeURI(token.slug)}`)
+  return token
+}
+
+const TOC_MARKER_START = '<!-- toc -->'
+const TOC_MARKER_END = '<!-- tocstop -->'
+
+const tocRegex = new RegExp(`${TOC_MARKER_START}[\\s\\S]*?${TOC_MARKER_END}`)
+
+/**
+ * Takes care of proper updating given editor with TOC.
+ * If TOC doesn't exit in the editor, it's inserted at current caret position.
+ * Otherwise,TOC is updated in place.
+ * @param editor CodeMirror editor to be updated with TOC
+ */
+export function generateInEditor(editor) {
+  function updateExistingToc() {
+    const toc = generate(editor.getValue())
+    const search = editor.getSearchCursor(tocRegex)
+    while (search.findNext()) {
+      search.replace(toc)
+    }
+  }
+
+  function addTocAtCursorPosition() {
+    const toc = generate(
+      editor.getRange(editor.getCursor(), { line: Infinity })
+    )
+    editor.replaceRange(wrapTocWithEol(toc, editor), editor.getCursor())
+  }
+
+  if (tocExistsInEditor(editor)) {
+    updateExistingToc()
+  } else {
+    addTocAtCursorPosition()
+  }
+}
+
+export function tocExistsInEditor(editor) {
+  return tocRegex.test(editor.getValue())
+}
+
+/**
+ * Generates MD TOC based on MD document passed as string.
+ * @param markdownText MD document
+ * @returns generatedTOC String containing generated TOC
+ */
+export function generate(markdownText) {
+  const slugs = {}
+  const opts = {
+    uniqueSlugStartIndex: 1
+  }
+
+  const result = toc(markdownText, {
+    slugify: title => {
+      return uniqueSlug(slugify(title), slugs, opts)
+    },
+    linkify: false
+  })
+
+  const md = toc.bullets(result.json.map(linkify), {
+    highest: result.highest
+  })
+
+  return TOC_MARKER_START + EOL + EOL + md + EOL + EOL + TOC_MARKER_END
+}
+
+function wrapTocWithEol(toc, editor) {
+  const leftWrap = editor.getCursor().ch === 0 ? '' : EOL
+  const rightWrap =
+    editor.getLine(editor.getCursor().line).length === editor.getCursor().ch
+      ? ''
+      : EOL
+  return leftWrap + toc + rightWrap
+}
+
+export default {
+  generate,
+  generateInEditor,
+  tocExistsInEditor
+}

browser/lib/markdown.js

@@ -0,0 +1,526 @@
+import markdownit from 'markdown-it'
+import sanitize from './markdown-it-sanitize-html'
+import emoji from 'markdown-it-emoji'
+import math from '@rokt33r/markdown-it-math'
+import mdurl from 'mdurl'
+import smartArrows from 'markdown-it-smartarrows'
+import markdownItTocAndAnchor from '@hikerpig/markdown-it-toc-and-anchor'
+import _ from 'lodash'
+import ConfigManager from 'browser/main/lib/ConfigManager'
+import katex from 'katex'
+import { escapeHtmlCharacters, lastFindInArray } from './utils'
+
+function createGutter(str, firstLineNumber) {
+  if (Number.isNaN(firstLineNumber)) firstLineNumber = 1
+  const lastLineNumber = (str.match(/\n/g) || []).length + firstLineNumber - 1
+  const lines = []
+  for (let i = firstLineNumber; i <= lastLineNumber; i++) {
+    lines.push('<span class="CodeMirror-linenumber">' + i + '</span>')
+  }
+  return (
+    '<span class="lineNumber CodeMirror-gutters">' + lines.join('') + '</span>'
+  )
+}
+
+class Markdown {
+  constructor(options = {}) {
+    const config = ConfigManager.get()
+    const defaultOptions = {
+      typographer: config.preview.smartQuotes,
+      linkify: true,
+      html: true,
+      xhtmlOut: true,
+      breaks: config.preview.breaks,
+      sanitize: 'STRICT',
+      onFence: () => {}
+    }
+
+    const updatedOptions = Object.assign(defaultOptions, options)
+    this.md = markdownit(updatedOptions)
+    this.md.linkify.set({ fuzzyLink: false })
+
+    if (updatedOptions.sanitize !== 'NONE') {
+      const allowedTags = [
+        'iframe',
+        'input',
+        'b',
+        'h1',
+        'h2',
+        'h3',
+        'h4',
+        'h5',
+        'h6',
+        'h7',
+        'h8',
+        'br',
+        'b',
+        'i',
+        'strong',
+        'em',
+        'a',
+        'pre',
+        'code',
+        'img',
+        'tt',
+        'div',
+        'ins',
+        'del',
+        'sup',
+        'sub',
+        'p',
+        'ol',
+        'ul',
+        'table',
+        'thead',
+        'tbody',
+        'tfoot',
+        'blockquote',
+        'dl',
+        'dt',
+        'dd',
+        'kbd',
+        'q',
+        'samp',
+        'var',
+        'hr',
+        'ruby',
+        'rt',
+        'rp',
+        'li',
+        'tr',
+        'td',
+        'th',
+        's',
+        'strike',
+        'summary',
+        'details'
+      ]
+      const allowedAttributes = [
+        'abbr',
+        'accept',
+        'accept-charset',
+        'accesskey',
+        'action',
+        'align',
+        'alt',
+        'axis',
+        'border',
+        'cellpadding',
+        'cellspacing',
+        'char',
+        'charoff',
+        'charset',
+        'checked',
+        'clear',
+        'cols',
+        'colspan',
+        'color',
+        'compact',
+        'coords',
+        'datetime',
+        'dir',
+        'disabled',
+        'enctype',
+        'for',
+        'frame',
+        'headers',
+        'height',
+        'hreflang',
+        'hspace',
+        'ismap',
+        'label',
+        'lang',
+        'maxlength',
+        'media',
+        'method',
+        'multiple',
+        'name',
+        'nohref',
+        'noshade',
+        'nowrap',
+        'open',
+        'prompt',
+        'readonly',
+        'rel',
+        'rev',
+        'rows',
+        'rowspan',
+        'rules',
+        'scope',
+        'selected',
+        'shape',
+        'size',
+        'span',
+        'start',
+        'summary',
+        'tabindex',
+        'target',
+        'title',
+        'type',
+        'usemap',
+        'valign',
+        'value',
+        'vspace',
+        'width',
+        'itemprop'
+      ]
+
+      if (updatedOptions.sanitize === 'ALLOW_STYLES') {
+        allowedTags.push('style')
+        allowedAttributes.push('style')
+      }
+
+      // Sanitize use rinput before other plugins
+      this.md.use(sanitize, {
+        allowedTags,
+        allowedAttributes: {
+          '*': allowedAttributes,
+          a: ['href'],
+          div: ['itemscope', 'itemtype'],
+          blockquote: ['cite'],
+          del: ['cite'],
+          ins: ['cite'],
+          q: ['cite'],
+          img: ['src', 'width', 'height'],
+          iframe: ['src', 'width', 'height', 'frameborder', 'allowfullscreen'],
+          input: ['type', 'id', 'checked']
+        },
+        allowedIframeHostnames: ['www.youtube.com'],
+        selfClosing: ['img', 'br', 'hr', 'input'],
+        allowedSchemes: ['http', 'https', 'ftp', 'mailto'],
+        allowedSchemesAppliedToAttributes: ['href', 'src', 'cite'],
+        allowProtocolRelative: true
+      })
+    }
+
+    this.md.use(emoji, {
+      shortcuts: {}
+    })
+    this.md.use(math, {
+      inlineOpen: config.preview.latexInlineOpen,
+      inlineClose: config.preview.latexInlineClose,
+      blockOpen: config.preview.latexBlockOpen,
+      blockClose: config.preview.latexBlockClose,
+      inlineRenderer: function(str) {
+        let output = ''
+        try {
+          output = katex.renderToString(str.trim())
+        } catch (err) {
+          output = `<span class="katex-error">${err.message}</span>`
+        }
+        return output
+      },
+      blockRenderer: function(str) {
+        let output = ''
+        try {
+          output = katex.renderToString(str.trim(), { displayMode: true })
+        } catch (err) {
+          output = `<div class="katex-error">${err.message}</div>`
+        }
+        return output
+      }
+    })
+    this.md.use(require('markdown-it-imsize'))
+    this.md.use(require('markdown-it-footnote'))
+    this.md.use(require('markdown-it-multimd-table'))
+    this.md.use(require('@enyaxu/markdown-it-anchor'), {
+      slugify: require('./slugify')
+    })
+    this.md.use(require('markdown-it-kbd'))
+    this.md.use(require('markdown-it-admonition'), {
+      types: [
+        'note',
+        'hint',
+        'attention',
+        'caution',
+        'danger',
+        'error',
+        'quote',
+        'abstract',
+        'question'
+      ]
+    })
+    this.md.use(require('markdown-it-abbr'))
+    this.md.use(require('markdown-it-sub'))
+    this.md.use(require('markdown-it-sup'))
+
+    this.md.use(md => {
+      markdownItTocAndAnchor(md, {
+        toc: true,
+        tocPattern: /\[TOC\]/i,
+        anchorLink: false,
+        appendIdToHeading: false
+      })
+
+      md.renderer.rules.toc_open = () => '<div class="markdownIt-TOC-wrapper">'
+      md.renderer.rules.toc_close = () => '</div>'
+    })
+
+    this.md.use(require('./markdown-it-deflist'))
+    this.md.use(require('./markdown-it-frontmatter'))
+
+    this.md.use(
+      require('./markdown-it-fence'),
+      {
+        chart: token => {
+          if (token.parameters.hasOwnProperty('yaml')) {
+            token.parameters.format = 'yaml'
+          }
+
+          updatedOptions.onFence('chart', token.parameters.format)
+
+          return `<pre class="fence" data-line="${token.map[0]}">
+            <span class="filename">${token.fileName}</span>
+            <div class="chart" data-height="${
+              token.parameters.height
+            }" data-format="${token.parameters.format || 'json'}">${
+            token.content
+          }</div>
+          </pre>`
+        },
+        flowchart: token => {
+          updatedOptions.onFence('flowchart')
+
+          return `<pre class="fence" data-line="${token.map[0]}">
+            <span class="filename">${token.fileName}</span>
+            <div class="flowchart" data-height="${token.parameters.height}">${
+            token.content
+          }</div>
+          </pre>`
+        },
+        gallery: token => {
+          const content = token.content
+            .split('\n')
+            .slice(0, -1)
+            .map(line => {
+              const match = /!\[[^\]]*]\(([^\)]*)\)/.exec(line)
+              if (match) {
+                return mdurl.encode(match[1])
+              } else {
+                return mdurl.encode(line)
+              }
+            })
+            .join('\n')
+
+          return `<pre class="fence" data-line="${token.map[0]}">
+              <span class="filename">${token.fileName}</span>
+              <div class="gallery" data-autoplay="${
+                token.parameters.autoplay
+              }" data-height="${token.parameters.height}">${content}</div>
+            </pre>`
+        },
+        mermaid: token => {
+          updatedOptions.onFence('mermaid')
+
+          return `<pre class="fence" data-line="${token.map[0]}">
+            <span class="filename">${token.fileName}</span>
+            <div class="mermaid" data-height="${token.parameters.height}">${
+            token.content
+          }</div>
+          </pre>`
+        },
+        sequence: token => {
+          updatedOptions.onFence('sequence')
+
+          return `<pre class="fence" data-line="${token.map[0]}">
+            <span class="filename">${token.fileName}</span>
+            <div class="sequence" data-height="${token.parameters.height}">${
+            token.content
+          }</div>
+          </pre>`
+        }
+      },
+      token => {
+        updatedOptions.onFence('code', token.langType)
+
+        return `<pre class="code CodeMirror" data-line="${token.map[0]}">
+          <span class="filename">${token.fileName}</span>
+          ${createGutter(token.content, token.firstLineNumber)}
+          <code class="${token.langType}">${token.content}</code>
+        </pre>`
+      }
+    )
+
+    const deflate = require('markdown-it-plantuml/lib/deflate')
+    const plantuml = require('markdown-it-plantuml')
+    const plantUmlStripTrailingSlash = url =>
+      url.endsWith('/') ? url.slice(0, -1) : url
+    const plantUmlServerAddress = plantUmlStripTrailingSlash(
+      config.preview.plantUMLServerAddress
+    )
+    const parsePlantUml = function(umlCode, openMarker, closeMarker, type) {
+      const s = unescape(encodeURIComponent(umlCode))
+      const zippedCode = deflate.encode64(
+        deflate.zip_deflate(`${openMarker}\n${s}\n${closeMarker}`, 9)
+      )
+      return `${plantUmlServerAddress}/${type}/${zippedCode}`
+    }
+
+    this.md.use(plantuml, {
+      generateSource: umlCode =>
+        parsePlantUml(umlCode, '@startuml', '@enduml', 'svg')
+    })
+
+    // Ditaa support. PlantUML server doesn't support Ditaa in SVG, so we set the format as PNG at the moment.
+    this.md.use(plantuml, {
+      openMarker: '@startditaa',
+      closeMarker: '@endditaa',
+      generateSource: umlCode =>
+        parsePlantUml(umlCode, '@startditaa', '@endditaa', 'png')
+    })
+
+    // Mindmap support
+    this.md.use(plantuml, {
+      openMarker: '@startmindmap',
+      closeMarker: '@endmindmap',
+      generateSource: umlCode =>
+        parsePlantUml(umlCode, '@startmindmap', '@endmindmap', 'svg')
+    })
+
+    // WBS support
+    this.md.use(plantuml, {
+      openMarker: '@startwbs',
+      closeMarker: '@endwbs',
+      generateSource: umlCode =>
+        parsePlantUml(umlCode, '@startwbs', '@endwbs', 'svg')
+    })
+
+    // Gantt support
+    this.md.use(plantuml, {
+      openMarker: '@startgantt',
+      closeMarker: '@endgantt',
+      generateSource: umlCode =>
+        parsePlantUml(umlCode, '@startgantt', '@endgantt', 'svg')
+    })
+
+    // Override task item
+    this.md.block.ruler.at('paragraph', function(
+      state,
+      startLine /*, endLine */
+    ) {
+      let content, terminate, i, l, token
+      let nextLine = startLine + 1
+      const terminatorRules = state.md.block.ruler.getRules('paragraph')
+      const endLine = state.lineMax
+
+      // jump line-by-line until empty one or EOF
+      for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
+        // this would be a code block normally, but after paragraph
+        // it's considered a lazy continuation regardless of what's there
+        if (state.sCount[nextLine] - state.blkIndent > 3) {
+          continue
+        }
+
+        // quirk for blockquotes, this line should already be checked by that rule
+        if (state.sCount[nextLine] < 0) {
+          continue
+        }
+
+        // Some tags can terminate paragraph without empty line.
+        terminate = false
+        for (i = 0, l = terminatorRules.length; i < l; i++) {
+          if (terminatorRules[i](state, nextLine, endLine, true)) {
+            terminate = true
+            break
+          }
+        }
+        if (terminate) {
+          break
+        }
+      }
+
+      content = state
+        .getLines(startLine, nextLine, state.blkIndent, false)
+        .trim()
+
+      state.line = nextLine
+
+      token = state.push('paragraph_open', 'p', 1)
+      token.map = [startLine, state.line]
+
+      if (state.parentType === 'list') {
+        const match = content.match(/^\[( |x)\] ?(.+)/i)
+        if (match) {
+          const liToken = lastFindInArray(
+            state.tokens,
+            token => token.type === 'list_item_open'
+          )
+          if (liToken) {
+            if (!liToken.attrs) {
+              liToken.attrs = []
+            }
+            if (config.preview.lineThroughCheckbox) {
+              liToken.attrs.push([
+                'class',
+                `taskListItem${match[1] !== ' ' ? ' checked' : ''}`
+              ])
+            } else {
+              liToken.attrs.push(['class', 'taskListItem'])
+            }
+          }
+          content = `<label class='taskListItem${
+            match[1] !== ' ' ? ' checked' : ''
+          }' for='checkbox-${startLine + 1}'><input type='checkbox'${
+            match[1] !== ' ' ? ' checked' : ''
+          } id='checkbox-${startLine + 1}'/> ${content.substring(
+            4,
+            content.length
+          )}</label>`
+        }
+      }
+
+      token = state.push('inline', '', 0)
+      token.content = content
+      token.map = [startLine, state.line]
+      token.children = []
+
+      token = state.push('paragraph_close', 'p', -1)
+
+      return true
+    })
+
+    this.md.renderer.rules.code_inline = function(tokens, idx) {
+      const token = tokens[idx]
+
+      return (
+        '<code class="inline">' +
+        escapeHtmlCharacters(token.content) +
+        '</code>'
+      )
+    }
+
+    if (config.preview.smartArrows) {
+      this.md.use(smartArrows)
+    }
+
+    // Add line number attribute for scrolling
+    const originalRender = this.md.renderer.render
+    this.md.renderer.render = (tokens, options, env) => {
+      tokens.forEach(token => {
+        switch (token.type) {
+          case 'blockquote_open':
+          case 'dd_open':
+          case 'dt_open':
+          case 'heading_open':
+          case 'list_item_open':
+          case 'paragraph_open':
+          case 'table_open':
+            if (token.map) {
+              token.attrPush(['data-line', token.map[0]])
+            }
+        }
+      })
+      const result = originalRender.call(this.md.renderer, tokens, options, env)
+      return result
+    }
+    // FIXME We should not depend on global variable.
+    window.md = this.md
+  }
+
+  render(content) {
+    if (!_.isString(content)) content = ''
+    return this.md.render(content)
+  }
+}
+
+export default Markdown

browser/lib/markdownTextHelper.js

@@ -0,0 +1,39 @@
+/**
+ * @fileoverview Text trimmer for markdown note.
+ */
+
+/**
+ * @param {string} input
+ * @return {string}
+ */
+export function strip(input) {
+  let output = input
+  try {
+    output = output
+      .replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, '$1')
+      .replace(/\n={2,}/g, '\n')
+      .replace(/~~/g, '')
+      .replace(/`{3}.*\n/g, '')
+      .replace(/<(.*?)>/g, '$1')
+      .replace(/^[=\-]{2,}\s*$/g, '')
+      .replace(/\[\^.+?\](: .*?$)?/g, '')
+      .replace(/\s{0,2}\[.*?\]: .*?$/g, '')
+      .replace(/!\[.*?\][\[\(].*?[\]\)]/g, '')
+      .replace(/\[(.*?)\][\[\(].*?[\]\)]/g, '$1')
+      .replace(/>/g, '')
+      .replace(/^\s{1,2}\[(.*?)\]: (\S+)( ".*?")?\s*$/g, '')
+      .replace(/^#{1,6}\s*/gm, '')
+      .replace(/(`{3,})(.*?)\1/gm, '$2')
+      .replace(/^-{3,}\s*$/g, '')
+      .replace(/`(.+?)`/g, '$1')
+      .replace(/\n{2,}/g, '\n\n')
+  } catch (e) {
+    console.error(e)
+    return input
+  }
+  return output
+}
+
+export default {
+  strip
+}

browser/lib/newNote.js

@@ -0,0 +1,108 @@
+import dataApi from 'browser/main/lib/dataApi'
+import ee from 'browser/main/lib/eventEmitter'
+import AwsMobileAnalyticsConfig from 'browser/main/lib/AwsMobileAnalyticsConfig'
+import queryString from 'query-string'
+import { push } from 'connected-react-router'
+
+export function createMarkdownNote(
+  storage,
+  folder,
+  dispatch,
+  location,
+  params,
+  config
+) {
+  AwsMobileAnalyticsConfig.recordDynamicCustomEvent('ADD_MARKDOWN')
+  AwsMobileAnalyticsConfig.recordDynamicCustomEvent('ADD_ALLNOTE')
+
+  let tags = []
+  if (
+    config.ui.tagNewNoteWithFilteringTags &&
+    location.pathname.match(/\/tags/)
+  ) {
+    tags = params.tagname.split(' ')
+  }
+
+  return dataApi
+    .createNote(storage, {
+      type: 'MARKDOWN_NOTE',
+      folder: folder,
+      title: '',
+      tags,
+      content: '',
+      linesHighlighted: []
+    })
+    .then(note => {
+      const noteHash = note.key
+      dispatch({
+        type: 'UPDATE_NOTE',
+        note: note
+      })
+
+      dispatch(
+        push({
+          pathname: location.pathname,
+          search: queryString.stringify({ key: noteHash })
+        })
+      )
+      ee.emit('list:jump', noteHash)
+      ee.emit('detail:focus')
+    })
+}
+
+export function createSnippetNote(
+  storage,
+  folder,
+  dispatch,
+  location,
+  params,
+  config
+) {
+  AwsMobileAnalyticsConfig.recordDynamicCustomEvent('ADD_SNIPPET')
+  AwsMobileAnalyticsConfig.recordDynamicCustomEvent('ADD_ALLNOTE')
+
+  let tags = []
+  if (
+    config.ui.tagNewNoteWithFilteringTags &&
+    location.pathname.match(/\/tags/)
+  ) {
+    tags = params.tagname.split(' ')
+  }
+
+  const defaultLanguage =
+    config.editor.snippetDefaultLanguage === 'Auto Detect'
+      ? null
+      : config.editor.snippetDefaultLanguage
+
+  return dataApi
+    .createNote(storage, {
+      type: 'SNIPPET_NOTE',
+      folder: folder,
+      title: '',
+      tags,
+      description: '',
+      snippets: [
+        {
+          name: '',
+          mode: defaultLanguage,
+          content: '',
+          linesHighlighted: []
+        }
+      ]
+    })
+    .then(note => {
+      const noteHash = note.key
+      dispatch({
+        type: 'UPDATE_NOTE',
+        note: note
+      })
+      dispatch(
+        push({
+          pathname: location.pathname,
+          search: queryString.stringify({ key: noteHash })
+        })
+      )
+      ee.emit('list:jump', noteHash)
+      ee.emit('detail:focus')
+    })
+}

browser/lib/normalizeEditorFontFamily.js

@@ -0,0 +1,9 @@
+import consts from 'browser/lib/consts'
+import isString from 'lodash/isString'
+
+export default function normalizeEditorFontFamily(fontFamily) {
+  const defaultEditorFontFamily = consts.DEFAULT_EDITOR_FONT_FAMILY
+  return isString(fontFamily) && fontFamily.length > 0
+    ? [fontFamily].concat(defaultEditorFontFamily).join(', ')
+    : defaultEditorFontFamily.join(', ')
+}

browser/lib/search.js

@@ -0,0 +1,41 @@
+import _ from 'lodash'
+
+export default function searchFromNotes(notes, search) {
+  if (search.trim().length === 0) return []
+  const searchBlocks = search.split(' ').filter(block => {
+    return block !== ''
+  })
+
+  let foundNotes = notes
+  searchBlocks.forEach(block => {
+    foundNotes = findByWordOrTag(foundNotes, block)
+  })
+  return foundNotes
+}
+
+function findByWordOrTag(notes, block) {
+  let tag = block
+  if (tag.match(/^#.+/)) {
+    tag = tag.match(/#(.+)/)[1]
+  }
+  const tagRegExp = new RegExp(_.escapeRegExp(tag), 'i')
+  const wordRegExp = new RegExp(_.escapeRegExp(block), 'i')
+  return notes.filter(note => {
+    if (_.isArray(note.tags) && note.tags.some(_tag => _tag.match(tagRegExp))) {
+      return true
+    }
+    if (note.type === 'SNIPPET_NOTE') {
+      return (
+        note.description.match(wordRegExp) ||
+        note.snippets.some(snippet => {
+          return (
+            snippet.name.match(wordRegExp) || snippet.content.match(wordRegExp)
+          )
+        })
+      )
+    } else if (note.type === 'MARKDOWN_NOTE') {
+      return note.content.match(wordRegExp)
+    }
+    return false
+  })
+}

browser/lib/slugify.js

@@ -0,0 +1,15 @@
+module.exports = function slugify(title) {
+  const slug = encodeURI(
+    title
+      .trim()
+      .replace(/^\s+/, '')
+      .replace(/\s+$/, '')
+      .replace(/\s+/g, '-')
+      .replace(
+        /[\]\[\!\'\#\$\%\&\(\)\*\+\,\.\/\:\;\<\=\>\?\@\\\^\{\|\}\~\`]/g,
+        ''
+      )
+  )
+
+  return slug
+}

browser/lib/spellcheck.js

@@ -0,0 +1,255 @@
+import styles from '../components/CodeEditor.styl'
+import i18n from 'browser/lib/i18n'
+
+const Typo = require('typo-js')
+const _ = require('lodash')
+
+const CSS_ERROR_CLASS = 'codeEditor-typo'
+const SPELLCHECK_DISABLED = 'NONE'
+const DICTIONARY_PATH = '../dictionaries'
+const MILLISECONDS_TILL_LIVECHECK = 500
+
+let dictionary = null
+let self
+
+function getAvailableDictionaries() {
+  return [
+    { label: i18n.__('Spellcheck disabled'), value: SPELLCHECK_DISABLED },
+    { label: i18n.__('English'), value: 'en_GB' },
+    { label: i18n.__('German'), value: 'de_DE' },
+    { label: i18n.__('French'), value: 'fr_FR' }
+  ]
+}
+
+/**
+ * Only to be used in the tests :)
+ */
+function setDictionaryForTestsOnly(newDictionary) {
+  dictionary = newDictionary
+}
+
+/**
+ * @description Initializes the spellcheck. It removes all existing marks of the current editor.
+ * If a language was given (i.e. lang !== this.SPELLCHECK_DISABLED) it will load the stated dictionary and use it to check the whole document.
+ * @param {Codemirror} editor CodeMirror-Editor
+ * @param {String} lang on of the values from getAvailableDictionaries()-Method
+ */
+function setLanguage(editor, lang) {
+  self = this
+  dictionary = null
+
+  if (editor == null) {
+    return
+  }
+
+  const existingMarks = editor.getAllMarks() || []
+  for (const mark of existingMarks) {
+    mark.clear()
+  }
+  if (lang !== SPELLCHECK_DISABLED) {
+    dictionary = new Typo(lang, false, false, {
+      dictionaryPath: DICTIONARY_PATH,
+      asyncLoad: true,
+      loadedCallback: () => checkWholeDocument(editor)
+    })
+  }
+}
+
+/**
+ * Checks the whole content of the editor for typos
+ * @param {Codemirror} editor CodeMirror-Editor
+ */
+function checkWholeDocument(editor) {
+  const lastLine = editor.lineCount() - 1
+  const textOfLastLine = editor.getLine(lastLine) || ''
+  const lastChar = textOfLastLine.length
+  const from = { line: 0, ch: 0 }
+  const to = { line: lastLine, ch: lastChar }
+  checkMultiLineRange(editor, from, to)
+}
+
+/**
+ * Checks the given range for typos
+ * @param {Codemirror} editor CodeMirror-Editor
+ * @param {line, ch} from starting position of the spellcheck
+ * @param {line, ch} to end position of the spellcheck
+ */
+function checkMultiLineRange(editor, from, to) {
+  function sortRange(pos1, pos2) {
+    if (
+      pos1.line > pos2.line ||
+      (pos1.line === pos2.line && pos1.ch > pos2.ch)
+    ) {
+      return { from: pos2, to: pos1 }
+    }
+    return { from: pos1, to: pos2 }
+  }
+
+  const { from: smallerPos, to: higherPos } = sortRange(from, to)
+  for (let l = smallerPos.line; l <= higherPos.line; l++) {
+    const line = editor.getLine(l) || ''
+    let w = 0
+    if (l === smallerPos.line) {
+      w = smallerPos.ch
+    }
+    let wEnd = line.length
+    if (l === higherPos.line) {
+      wEnd = higherPos.ch
+    }
+    while (w <= wEnd) {
+      const wordRange = editor.findWordAt({ line: l, ch: w })
+      self.checkWord(editor, wordRange)
+      w += wordRange.head.ch - wordRange.anchor.ch + 1
+    }
+  }
+}
+
+/**
+ * @description Checks whether a certain range of characters in the editor (i.e. a word) contains a typo.
+ * If so the ranged will be marked with the class CSS_ERROR_CLASS.
+ * Note: Due to performance considerations, only words with more then 3 signs are checked.
+ * @param {Codemirror} editor CodeMirror-Editor
+ * @param wordRange Object specifying the range that should be checked.
+ * Having the following structure: <code>{anchor: {line: integer, ch: integer}, head: {line: integer, ch: integer}}</code>
+ */
+function checkWord(editor, wordRange) {
+  const word = editor.getRange(wordRange.anchor, wordRange.head)
+  if (word == null || word.length <= 3) {
+    return
+  }
+  if (!dictionary.check(word)) {
+    editor.markText(wordRange.anchor, wordRange.head, {
+      className: styles[CSS_ERROR_CLASS]
+    })
+  }
+}
+
+/**
+ * Checks the changes recently made (aka live check)
+ * @param {Codemirror} editor CodeMirror-Editor
+ * @param fromChangeObject codeMirror changeObject describing the start of the editing
+ * @param toChangeObject codeMirror changeObject describing the end of the editing
+ */
+function checkChangeRange(editor, fromChangeObject, toChangeObject) {
+  /**
+   * Calculate the smallest respectively largest position as a start, resp. end, position and return it
+   * @param start CodeMirror change object
+   * @param end CodeMirror change object
+   * @returns {{start: {line: *, ch: *}, end: {line: *, ch: *}}}
+   */
+  function getStartAndEnd(start, end) {
+    const possiblePositions = [start.from, start.to, end.from, end.to]
+    let smallest = start.from
+    let biggest = end.to
+    for (const currentPos of possiblePositions) {
+      if (
+        currentPos.line < smallest.line ||
+        (currentPos.line === smallest.line && currentPos.ch < smallest.ch)
+      ) {
+        smallest = currentPos
+      }
+      if (
+        currentPos.line > biggest.line ||
+        (currentPos.line === biggest.line && currentPos.ch > biggest.ch)
+      ) {
+        biggest = currentPos
+      }
+    }
+    return { start: smallest, end: biggest }
+  }
+
+  if (dictionary === null || editor == null) {
+    return
+  }
+
+  try {
+    const { start, end } = getStartAndEnd(fromChangeObject, toChangeObject)
+
+    // Expand the range to include words after/before whitespaces
+    start.ch = Math.max(start.ch - 1, 0)
+    end.ch = end.ch + 1
+
+    // clean existing marks
+    const existingMarks = editor.findMarks(start, end) || []
+    for (const mark of existingMarks) {
+      mark.clear()
+    }
+
+    self.checkMultiLineRange(editor, start, end)
+  } catch (e) {
+    console.info(
+      'Error during the spell check. It might be due to problems figuring out the range of the new text..',
+      e
+    )
+  }
+}
+
+function saveLiveSpellCheckFrom(changeObject) {
+  liveSpellCheckFrom = changeObject
+}
+let liveSpellCheckFrom
+const debouncedSpellCheckLeading = _.debounce(
+  saveLiveSpellCheckFrom,
+  MILLISECONDS_TILL_LIVECHECK,
+  {
+    leading: true,
+    trailing: false
+  }
+)
+const debouncedSpellCheck = _.debounce(
+  checkChangeRange,
+  MILLISECONDS_TILL_LIVECHECK,
+  {
+    leading: false,
+    trailing: true
+  }
+)
+
+/**
+ * Handles a keystroke. Buffers the input and performs a live spell check after a certain time. Uses _debounce from lodash to buffer the input
+ * @param {Codemirror} editor CodeMirror-Editor
+ * @param changeObject codeMirror changeObject
+ */
+function handleChange(editor, changeObject) {
+  if (dictionary === null) {
+    return
+  }
+  debouncedSpellCheckLeading(changeObject)
+  debouncedSpellCheck(editor, liveSpellCheckFrom, changeObject)
+}
+
+/**
+ * Returns an array of spelling suggestions for the given (wrong written) word.
+ * Returns an empty array if the dictionary is null (=> spellcheck is disabled) or the given word was null
+ * @param word word to be checked
+ * @returns {String[]} Array of suggestions
+ */
+function getSpellingSuggestion(word) {
+  if (dictionary == null || word == null) {
+    return []
+  }
+  return dictionary.suggest(word)
+}
+
+/**
+ * Returns the name of the CSS class used for errors
+ */
+function getCSSClassName() {
+  return styles[CSS_ERROR_CLASS]
+}
+
+module.exports = {
+  DICTIONARY_PATH,
+  CSS_ERROR_CLASS,
+  SPELLCHECK_DISABLED,
+  getAvailableDictionaries,
+  setLanguage,
+  checkChangeRange,
+  handleChange,
+  getSpellingSuggestion,
+  checkWord,
+  checkMultiLineRange,
+  checkWholeDocument,
+  setDictionaryForTestsOnly,
+  getCSSClassName
+}

browser/lib/turndown.js

@@ -0,0 +1,9 @@
+const TurndownService = require('turndown')
+const { gfm } = require('turndown-plugin-gfm')
+
+export const createTurndownService = function() {
+  const turndown = new TurndownService()
+  turndown.use(gfm)
+  turndown.remove('script')
+  return turndown
+}

browser/lib/ui-themes.js

@@ -0,0 +1,44 @@
+import i18n from 'browser/lib/i18n'
+
+export default [
+  {
+    name: 'dark',
+    label: i18n.__('Dark'),
+    isDark: true
+  },
+  {
+    name: 'default',
+    label: i18n.__('Default'),
+    isDark: false
+  },
+  {
+    name: 'dracula',
+    label: i18n.__('Dracula'),
+    isDark: true
+  },
+  {
+    name: 'monokai',
+    label: i18n.__('Monokai'),
+    isDark: true
+  },
+  {
+    name: 'nord',
+    label: i18n.__('Nord'),
+    isDark: true
+  },
+  {
+    name: 'solarized-dark',
+    label: i18n.__('Solarized Dark'),
+    isDark: true
+  },
+  {
+    name: 'vulcan',
+    label: i18n.__('Vulcan'),
+    isDark: true
+  },
+  {
+    name: 'white',
+    label: i18n.__('White'),
+    isDark: false
+  }
+]