Text expansion support

browser/components/CodeEditor.js

@@ -6,8 +6,10 @@ import 'codemirror-mode-elixir'
 import attachmentManagement from 'browser/main/lib/dataApi/attachmentManagement'
 import eventEmitter from 'browser/main/lib/eventEmitter'
 import iconv from 'iconv-lite'
-
-const { ipcRenderer } = require('electron')
+import crypto from 'crypto'
+import consts from 'browser/lib/consts'
+import fs from 'fs'
+const { ipcRenderer, remote } = require('electron')
 
 CodeMirror.modeURL = '../node_modules/codemirror/mode/%N/%N.js'
 
@@ -92,8 +94,21 @@ export default class CodeEditor extends React.Component {
 
   componentDidMount () {
     const { rulers, enableRulers } = this.props
-    this.value = this.props.value
+    const expandSnippet = this.expandSnippet.bind(this)
+
+    const 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.'
+      }
+    ]
+    if (!fs.existsSync(consts.SNIPPET_FILE)) {
+      fs.writeFileSync(consts.SNIPPET_FILE, JSON.stringify(defaultSnippet, null, 4), 'utf8')
+    }
 
+    this.value = this.props.value
     this.editor = CodeMirror(this.refs.root, {
       rulers: buildCMRulers(rulers, enableRulers),
       value: this.props.value,
@@ -114,6 +129,8 @@ export default class CodeEditor extends React.Component {
         Tab: function (cm) {
           const cursor = cm.getCursor()
           const line = cm.getLine(cursor.line)
+          const cursorPosition = cursor.ch
+          const charBeforeCursor = line.substr(cursorPosition - 1, 1)
           if (cm.somethingSelected()) cm.indentSelection('add')
           else {
             const tabs = cm.getOption('indentWithTabs')
@@ -125,6 +142,16 @@ export default class CodeEditor extends React.Component {
                 cm.execCommand('insertSoftTab')
               }
               cm.execCommand('goLineEnd')
+            } else if (!charBeforeCursor.match(/\t|\s|\r|\n/) && cursor.ch > 1) {
+              // text expansion on tab key if the char before is alphabet
+              const snippets = JSON.parse(fs.readFileSync(consts.SNIPPET_FILE, 'utf8'))
+              if (expandSnippet(line, cursor, cm, snippets) === false) {
+                if (tabs) {
+                  cm.execCommand('insertTab')
+                } else {
+                  cm.execCommand('insertSoftTab')
+                }
+              }
             } else {
               if (tabs) {
                 cm.execCommand('insertTab')
@@ -168,6 +195,53 @@ export default class CodeEditor extends React.Component {
     CodeMirror.Vim.map('ZZ', ':q', 'normal')
   }
 
+  expandSnippet (line, cursor, cm, snippets) {
+    const wordBeforeCursor = this.getWordBeforeCursor(line, cursor.line, cursor.ch)
+    for (let i = 0; i < snippets.length; i++) {
+      if (snippets[i].prefix.indexOf(wordBeforeCursor.text) !== -1) {
+        cm.replaceRange(
+          snippets[i].content,
+          wordBeforeCursor.range.from,
+          wordBeforeCursor.range.to
+        )
+        return true
+      }
+    }
+
+    return false
+  }
+
+  getWordBeforeCursor (line, lineNumber, cursorPosition) {
+    let wordBeforeCursor = ''
+    const originCursorPosition = cursorPosition
+    const emptyChars = /\t|\s|\r|\n/
+
+    // to prevent the word to expand is long that will crash the whole app
+    // the safeStop is there to stop user to expand words that longer than 20 chars
+    const safeStop = 20
+
+    while (cursorPosition > 0) {
+      const currentChar = line.substr(cursorPosition - 1, 1)
+      // if char is not an empty char
+      if (!emptyChars.test(currentChar)) {
+        wordBeforeCursor = currentChar + wordBeforeCursor
+      } else if (wordBeforeCursor.length >= safeStop) {
+        throw new Error('Your snippet trigger is too long !')
+      } else {
+        break
+      }
+      cursorPosition--
+    }
+
+    return {
+      text: wordBeforeCursor,
+      range: {
+        from: {line: lineNumber, ch: originCursorPosition},
+        to: {line: lineNumber, ch: cursorPosition}
+      }
+    }
+  }
+
   quitEditor () {
     document.querySelector('textarea').blur()
   }

browser/lib/consts.js

@@ -2,6 +2,7 @@ const path = require('path')
 const fs = require('sander')
 const { remote } = require('electron')
 const { app } = remote
+const os = require('os')
 
 const themePath = process.env.NODE_ENV === 'production'
   ? path.join(app.getAppPath(), './node_modules/codemirror/theme')
@@ -12,6 +13,16 @@ const themes = fs.readdirSync(themePath)
   })
 themes.splice(themes.indexOf('solarized'), 1, 'solarized dark', 'solarized light')
 
+const snippetFile = process.env.NODE_ENV === 'production'
+  ? path.join(app.getPath('appData'), 'Boostnote', 'snippets.json')
+  : path.join(getAppData(), 'Boostnote', 'snippets.json')
+
+function getAppData () {
+  return process.env.APPDATA || (process.platform === 'darwin'
+  ? path.join(process.env.HOME, 'Library', 'Preferences')
+  : path.join(os.homedir(), '.config'))
+}
+
 const consts = {
   FOLDER_COLORS: [
     '#E10051',
@@ -31,7 +42,8 @@ const consts = {
     'Dodger Blue',
     'Violet Eggplant'
   ],
-  THEMES: ['default'].concat(themes)
+  THEMES: ['default'].concat(themes),
+  SNIPPET_FILE: snippetFile
 }
 
 module.exports = consts

browser/main/lib/dataApi/createSnippet.js

@@ -0,0 +1,26 @@
+import fs from 'fs'
+import crypto from 'crypto'
+import consts from 'browser/lib/consts'
+import fetchSnippet from 'browser/main/lib/dataApi/fetchSnippet'
+
+function createSnippet (snippetFile) {
+  return new Promise((resolve, reject) => {
+    const newSnippet = {
+      id: crypto.randomBytes(16).toString('hex'),
+      name: 'Unnamed snippet',
+      prefix: [],
+      content: ''
+    }
+    fetchSnippet(null, snippetFile).then((snippets) => {
+      snippets.push(newSnippet)
+      fs.writeFile(snippetFile || consts.SNIPPET_FILE, JSON.stringify(snippets, null, 4), (err) => {
+        if (err) reject(err)
+        resolve(newSnippet)
+      })
+    }).catch((err) => {
+      reject(err)
+    })
+  })
+}
+
+module.exports = createSnippet

browser/main/lib/dataApi/deleteSnippet.js

@@ -0,0 +1,17 @@
+import fs from 'fs'
+import consts from 'browser/lib/consts'
+import fetchSnippet from 'browser/main/lib/dataApi/fetchSnippet'
+
+function deleteSnippet (snippet, snippetFile) {
+  return new Promise((resolve, reject) => {
+    fetchSnippet(null, snippetFile).then((snippets) => {
+      snippets = snippets.filter(currentSnippet => currentSnippet.id !== snippet.id)
+      fs.writeFile(snippetFile || consts.SNIPPET_FILE, JSON.stringify(snippets, null, 4), (err) => {
+        if (err) reject(err)
+        resolve(snippet)
+      })
+    })
+  })
+}
+
+module.exports = deleteSnippet

browser/main/lib/dataApi/fetchSnippet.js

@@ -0,0 +1,21 @@
+import fs from 'fs'
+import crypto from 'crypto'
+import consts from 'browser/lib/consts'
+
+function fetchSnippet (id, snippetFile) {
+  return new Promise((resolve, reject) => {
+    fs.readFile(snippetFile || consts.SNIPPET_FILE, 'utf8', (err, data) => {
+      if (err) {
+        reject(err)
+      }
+      const snippets = JSON.parse(data)
+      if (id) {
+        const snippet = snippets.find(snippet => { return snippet.id === id })
+        resolve(snippet)
+      }
+      resolve(snippets)
+    })
+  })
+}
+
+module.exports = fetchSnippet

browser/main/lib/dataApi/index.js

@@ -13,6 +13,10 @@ const dataApi = {
   deleteNote: require('./deleteNote'),
   moveNote: require('./moveNote'),
   migrateFromV5Storage: require('./migrateFromV5Storage'),
+  createSnippet: require('./createSnippet'),
+  deleteSnippet: require('./deleteSnippet'),
+  updateSnippet: require('./updateSnippet'),
+  fetchSnippet: require('./fetchSnippet'),
 
   _migrateFromV6Storage: require('./migrateFromV6Storage'),
   _resolveStorageData: require('./resolveStorageData'),

browser/main/lib/dataApi/updateSnippet.js

@@ -0,0 +1,33 @@
+import fs from 'fs'
+import consts from 'browser/lib/consts'
+
+function updateSnippet (snippet, snippetFile) {
+  return new Promise((resolve, reject) => {
+    const snippets = JSON.parse(fs.readFileSync(snippetFile || consts.SNIPPET_FILE, 'utf-8'))
+
+    for (let i = 0; i < snippets.length; i++) {
+      const currentSnippet = snippets[i]
+
+      if (currentSnippet.id === snippet.id) {
+        if (
+          currentSnippet.name === snippet.name &&
+          currentSnippet.prefix === snippet.prefix &&
+          currentSnippet.content === snippet.content
+        ) {
+          // if everything is the same then don't write to disk
+          resolve(snippets)
+        } else {
+          currentSnippet.name = snippet.name
+          currentSnippet.prefix = snippet.prefix
+          currentSnippet.content = snippet.content
+          fs.writeFile(snippetFile || consts.SNIPPET_FILE, JSON.stringify(snippets, null, 4), (err) => {
+            if (err) reject(err)
+            resolve(snippets)
+          })
+        }
+      }
+    }
+  })
+}
+
+module.exports = updateSnippet

browser/main/modals/PreferencesModal/SnippetEditor.js

@@ -0,0 +1,90 @@
+import CodeMirror from 'codemirror'
+import React from 'react'
+import _ from 'lodash'
+import fs from 'fs'
+import consts from 'browser/lib/consts'
+import dataApi from 'browser/main/lib/dataApi'
+
+const defaultEditorFontFamily = ['Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', 'monospace']
+const buildCMRulers = (rulers, enableRulers) =>
+  enableRulers ? rulers.map(ruler => ({ column: ruler })) : []
+
+export default class SnippetEditor extends React.Component {
+
+  componentDidMount () {
+    this.props.onRef(this)
+    const { rulers, enableRulers } = this.props
+    this.cm = CodeMirror(this.refs.root, {
+      rulers: buildCMRulers(rulers, enableRulers),
+      lineNumbers: this.props.displayLineNumbers,
+      lineWrapping: true,
+      theme: this.props.theme,
+      indentUnit: this.props.indentSize,
+      tabSize: this.props.indentSize,
+      indentWithTabs: this.props.indentType !== 'space',
+      keyMap: this.props.keyMap,
+      scrollPastEnd: this.props.scrollPastEnd,
+      dragDrop: false,
+      foldGutter: true,
+      gutters: ['CodeMirror-linenumbers', 'CodeMirror-foldgutter'],
+      autoCloseBrackets: true
+    })
+    this.cm.setSize('100%', '100%')
+    let changeDelay = null
+
+    this.cm.on('change', () => {
+      this.snippet.content = this.cm.getValue()
+
+      clearTimeout(changeDelay)
+      changeDelay = setTimeout(() => {
+        this.saveSnippet()
+      }, 500)
+    })
+  }
+
+  componentWillUnmount () {
+    this.props.onRef(undefined)
+  }
+
+  onSnippetChanged (newSnippet) {
+    this.snippet = newSnippet
+    this.cm.setValue(this.snippet.content)
+  }
+
+  onSnippetNameOrPrefixChanged (newSnippet) {
+    this.snippet.name = newSnippet.name
+    this.snippet.prefix = newSnippet.prefix.toString().replace(/\s/g, '').split(',')
+    this.saveSnippet()
+  }
+
+  saveSnippet () {
+    dataApi.updateSnippet(this.snippet).catch((err) => { throw err })
+  }
+
+  render () {
+    const { fontSize } = this.props
+    let fontFamily = this.props.fontFamily
+    fontFamily = _.isString(fontFamily) && fontFamily.length > 0
+      ? [fontFamily].concat(defaultEditorFontFamily)
+      : defaultEditorFontFamily
+    return (
+      <div styleName='SnippetEditor' ref='root' tabIndex='-1' style={{
+        fontFamily: fontFamily.join(', '),
+        fontSize: fontSize,
+        position: 'absolute',
+        width: '100%',
+        height: '90%'
+      }} />
+    )
+  }
+}
+
+SnippetEditor.defaultProps = {
+  readOnly: false,
+  theme: 'xcode',
+  keyMap: 'sublime',
+  fontSize: 14,
+  fontFamily: 'Monaco, Consolas',
+  indentSize: 4,
+  indentType: 'space'
+}