fix pasting into fenced code block

browser/components/CodeEditor.js

@@ -13,7 +13,7 @@ import crypto from 'crypto'
 import consts from 'browser/lib/consts'
 import styles from '../components/CodeEditor.styl'
 import fs from 'fs'
-const { ipcRenderer, remote } = require('electron')
+const { ipcRenderer, remote, clipboard } = require('electron')
 import normalizeEditorFontFamily from 'browser/lib/normalizeEditorFontFamily'
 const spellcheck = require('browser/lib/spellcheck')
 const buildEditorContextMenu = require('browser/lib/contextMenuBuilder')
@@ -25,6 +25,10 @@ CodeMirror.modeURL = '../node_modules/codemirror/mode/%N/%N.js'
 const buildCMRulers = (rulers, enableRulers) =>
   (enableRulers ? rulers.map(ruler => ({ column: ruler })) : [])
 
+function translateHotkey (hotkey) {
+  return hotkey.replace(/\s*\+\s*/g, '-').replace(/Command/g, 'Cmd').replace(/Control/g, 'Ctrl')
+}
+
 export default class CodeEditor extends React.Component {
   constructor (props) {
     super(props)
@@ -56,7 +60,11 @@ export default class CodeEditor extends React.Component {
         noteKey
       )
     }
-    this.pasteHandler = (editor, e) => this.handlePaste(editor, e)
+    this.pasteHandler = (editor, e) => {
+      e.preventDefault()
+
+      this.handlePaste(editor, false)
+    }
     this.loadStyleHandler = e => {
       this.editor.refresh()
     }
@@ -124,42 +132,9 @@ export default class CodeEditor extends React.Component {
     }
   }
 
-  updateTableEditorState () {
-    const active = this.tableEditor.cursorIsInTable(this.tableEditorOptions)
-    if (active) {
-      if (this.extraKeysMode !== 'editor') {
-        this.extraKeysMode = 'editor'
-        this.editor.setOption('extraKeys', this.editorKeyMap)
-      }
-    } else {
-      if (this.extraKeysMode !== 'default') {
-        this.extraKeysMode = 'default'
-        this.editor.setOption('extraKeys', this.defaultKeyMap)
-        this.tableEditor.resetSmartCursor()
-      }
-    }
-  }
-
-  componentDidMount () {
-    const { rulers, enableRulers, switchPreview } = this.props
+  updateDefaultKeyMap () {
+    const { hotkey } = this.props
     const expandSnippet = this.expandSnippet.bind(this)
-    eventEmitter.on('line:jump', this.scrollToLineHandeler)
-
-    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.defaultKeyMap = CodeMirror.normalizeKeyMap({
       Tab: function (cm) {
@@ -211,8 +186,50 @@ export default class CodeEditor extends React.Component {
           document.execCommand('copy')
         }
         return CodeMirror.Pass
+      },
+      [translateHotkey(hotkey.pasteSmartly)]: cm => {
+        this.handlePaste(cm, true)
       }
     })
+  }
+
+  updateTableEditorState () {
+    const active = this.tableEditor.cursorIsInTable(this.tableEditorOptions)
+    if (active) {
+      if (this.extraKeysMode !== 'editor') {
+        this.extraKeysMode = 'editor'
+        this.editor.setOption('extraKeys', this.editorKeyMap)
+      }
+    } else {
+      if (this.extraKeysMode !== 'default') {
+        this.extraKeysMode = 'default'
+        this.editor.setOption('extraKeys', this.defaultKeyMap)
+        this.tableEditor.resetSmartCursor()
+      }
+    }
+  }
+
+  componentDidMount () {
+    const { rulers, enableRulers } = this.props
+    eventEmitter.on('line:jump', this.scrollToLineHandeler)
+
+    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.updateDefaultKeyMap()
 
     this.value = this.props.value
     this.editor = CodeMirror(this.refs.root, {
@@ -245,7 +262,7 @@ export default class CodeEditor extends React.Component {
     this.editor.on('blur', this.blurHandler)
     this.editor.on('change', this.changeHandler)
     this.editor.on('paste', this.pasteHandler)
-    if (switchPreview !== 'RIGHTCLICK') {
+    if (this.props.switchPreview !== 'RIGHTCLICK') {
       this.editor.on('contextmenu', this.contextMenuHandler)
     }
     eventEmitter.on('top:search', this.searchHandler)
@@ -479,6 +496,14 @@ export default class CodeEditor extends React.Component {
       this.editor.setOption('extraKeys', this.defaultKeyMap)
     }
 
+    if (prevProps.hotkey !== this.props.hotkey) {
+      this.updateDefaultKeyMap()
+
+      if (this.extraKeysMode === 'default') {
+        this.editor.setOption('extraKeys', this.defaultKeyMap)
+      }
+    }
+
     if (this.state.clientWidth !== this.refs.root.clientWidth) {
       this.setState({
         clientWidth: this.refs.root.clientWidth
@@ -567,15 +592,14 @@ export default class CodeEditor extends React.Component {
     this.editor.replaceSelection(imageMd)
   }
 
-  handlePaste (editor, e) {
-    const clipboardData = e.clipboardData
-    const { storageKey, noteKey } = this.props
-    const dataTransferItem = clipboardData.items[0]
-    const pastedTxt = clipboardData.getData('text')
+  handlePaste (editor, forceSmartPaste) {
+    const { storageKey, noteKey, fetchUrlTitle, enableSmartPaste } = this.props
+
     const isURL = str => {
       const matcher = /^(?:\w+:)?\/\/([^\s\.]+\.\S{2}|localhost[\:?\d]*)\S*$/
       return matcher.test(str)
     }
+
     const isInLinkTag = editor => {
       const startCursor = editor.getCursor('start')
       const prevChar = editor.getRange(
@@ -590,30 +614,73 @@ export default class CodeEditor extends React.Component {
       return prevChar === '](' && nextChar === ')'
     }
 
-    const pastedHtml = clipboardData.getData('text/html')
-    if (pastedHtml !== '') {
-      this.handlePasteHtml(e, editor, pastedHtml)
-    } else if (dataTransferItem.type.match('image')) {
-      attachmentManagement.handlePastImageEvent(
-        this,
-        storageKey,
-        noteKey,
-        dataTransferItem
-      )
-    } else if (
-      this.props.fetchUrlTitle &&
-      isURL(pastedTxt) &&
-      !isInLinkTag(editor)
-    ) {
-      this.handlePasteUrl(e, editor, pastedTxt)
+    const isInFencedCodeBlock = editor => {
+      const cursor = editor.getCursor()
+
+      let token = editor.getTokenAt(cursor)
+      if (token.state.fencedState) {
+        return true
+      }
+
+      let line = line = cursor.line - 1
+      while (line >= 0) {
+        token = editor.getTokenAt({
+          ch: 3,
+          line
+        })
+
+        if (token.start === token.end) {
+          --line
+        } else if (token.type === 'comment') {
+          if (line > 0) {
+            token = editor.getTokenAt({
+              ch: 3,
+              line: line - 1
+            })
+
+            return token.type !== 'comment'
+          } else {
+            return true
+          }
+        } else {
+          return false
+        }
+      }
+
+      return false
     }
-    if (attachmentManagement.isAttachmentLink(pastedTxt)) {
+
+    const pastedTxt = clipboard.readText()
+
+    if (isInFencedCodeBlock(editor)) {
+      this.handlePasteText(editor, pastedTxt)
+    } else if (fetchUrlTitle && isURL(pastedTxt) && !isInLinkTag(editor)) {
+      this.handlePasteUrl(editor, pastedTxt)
+    } else if (enableSmartPaste || forceSmartPaste) {
+      const image = clipboard.readImage()
+      if (!image.isEmpty()) {
+        attachmentManagement.handlePastNativeImage(
+          this,
+          storageKey,
+          noteKey,
+          image
+        )
+      } else {
+        const pastedHtml = clipboard.readHTML()
+        if (pastedHtml.length > 0) {
+          this.handlePasteHtml(editor, pastedHtml)
+        } else {
+          this.handlePasteText(editor, pastedTxt)
+        }
+      }
+    } else if (attachmentManagement.isAttachmentLink(pastedTxt)) {
       attachmentManagement
         .handleAttachmentLinkPaste(storageKey, noteKey, pastedTxt)
         .then(modifiedText => {
           this.editor.replaceSelection(modifiedText)
         })
-      e.preventDefault()
+    } else {
+      this.handlePasteText(editor, pastedTxt)
     }
   }
 
@@ -623,8 +690,7 @@ export default class CodeEditor extends React.Component {
     }
   }
 
-  handlePasteUrl (e, editor, pastedTxt) {
-    e.preventDefault()
+  handlePasteUrl (editor, pastedTxt) {
     const taggedUrl = `<${pastedTxt}>`
     editor.replaceSelection(taggedUrl)
 
@@ -663,12 +729,15 @@ export default class CodeEditor extends React.Component {
       })
   }
 
-  handlePasteHtml (e, editor, pastedHtml) {
-    e.preventDefault()
+  handlePasteHtml (editor, pastedHtml) {
     const markdown = this.turndownService.turndown(pastedHtml)
     editor.replaceSelection(markdown)
   }
 
+  handlePasteText (editor, pastedTxt) {
+    editor.replaceSelection(pastedTxt)
+  }
+
   mapNormalResponse (response, pastedTxt) {
     return this.decodeResponse(response).then(body => {
       return new Promise((resolve, reject) => {

browser/components/MarkdownEditor.js

@@ -278,6 +278,8 @@ class MarkdownEditor extends React.Component {
           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}
         />
         <MarkdownPreview styleName={this.state.status === 'PREVIEW'

browser/components/MarkdownSplitEditor.js

@@ -172,6 +172,8 @@ class MarkdownSplitEditor extends React.Component {
           onChange={this.handleOnChange.bind(this)}
           onScroll={this.handleScroll.bind(this)}
           spellCheck={config.editor.spellcheck}
+          enableSmartPaste={config.editor.enableSmartPaste}
+          hotkey={config.hotkey}
           switchPreview={config.editor.switchPreview}
        />
         <div styleName='slider' style={{left: this.state.codeEditorWidthInPercent + '%'}} onMouseDown={e => this.handleMouseDown(e)} >

browser/main/Detail/SnippetNoteDetail.js

@@ -724,6 +724,8 @@ class SnippetNoteDetail extends React.Component {
             enableTableEditor={config.editor.enableTableEditor}
             onChange={(e) => this.handleCodeChange(index)(e)}
             ref={'code-' + index}
+            enableSmartPaste={config.editor.enableSmartPaste}
+            hotkey={config.hotkey}
           />
         }
       </div>

browser/main/lib/ConfigManager.js

@@ -25,7 +25,8 @@ export const DEFAULT_CONFIG = {
   hotkey: {
     toggleMain: OSX ? 'Command + Alt + L' : 'Super + Alt + E',
     toggleMode: OSX ? 'Command + Alt + M' : 'Ctrl + M',
-    deleteNote: OSX ? 'Command + Shift + Backspace' : 'Ctrl + Shift + Backspace'
+    deleteNote: OSX ? 'Command + Shift + Backspace' : 'Ctrl + Shift + Backspace',
+    pasteSmartly: OSX ? 'Command + Shift + V' : 'Ctrl + Shift + V'
   },
   ui: {
     language: 'en',
@@ -52,7 +53,8 @@ export const DEFAULT_CONFIG = {
     enableTableEditor: false,
     enableFrontMatterTitle: true,
     frontMatterTitleField: 'title',
-    spellcheck: false
+    spellcheck: false,
+    enableSmartPaste: false
   },
   preview: {
     fontSize: '14',

browser/main/lib/dataApi/attachmentManagement.js

@@ -316,6 +316,44 @@ function handlePastImageEvent (codeEditor, storageKey, noteKey, dataTransferItem
   reader.readAsDataURL(blob)
 }
 
+/**
+ * @description Creates a new file in the storage folder belonging to the current note and inserts the correct markdown code
+ * @param {CodeEditor} codeEditor Markdown editor. Its insertAttachmentMd() method will be called to include the markdown code
+ * @param {String} storageKey Key of the current storage
+ * @param {String} noteKey Key of the current note
+ * @param {NativeImage} image The native image
+ */
+function handlePastNativeImage (codeEditor, storageKey, noteKey, image) {
+  if (!codeEditor) {
+    throw new Error('codeEditor has to be given')
+  }
+  if (!storageKey) {
+    throw new Error('storageKey has to be given')
+  }
+
+  if (!noteKey) {
+    throw new Error('noteKey has to be given')
+  }
+  if (!image) {
+    throw new Error('image has to be given')
+  }
+
+  const targetStorage = findStorage.findStorage(storageKey)
+  const destinationDir = path.join(targetStorage.path, DESTINATION_FOLDER, noteKey)
+
+  createAttachmentDestinationFolder(targetStorage.path, noteKey)
+
+  const imageName = `${uniqueSlug()}.png`
+  const imagePath = path.join(destinationDir, imageName)
+
+  const binaryData = image.toPNG()
+  fs.writeFileSync(imagePath, binaryData, 'binary')
+
+  const imageReferencePath = path.join(STORAGE_FOLDER_PLACEHOLDER, noteKey, imageName)
+  const imageMd = generateAttachmentMarkdown(imageName, imageReferencePath, true)
+  codeEditor.insertAttachmentMd(imageMd)
+}
+
 /**
 * @description Returns all attachment paths of the given markdown
 * @param {String} markdownContent content in which the attachment paths should be found
@@ -539,6 +577,7 @@ module.exports = {
   generateAttachmentMarkdown,
   handleAttachmentDrop,
   handlePastImageEvent,
+  handlePastNativeImage,
   getAttachmentsInMarkdownContent,
   getAbsolutePathsOfAttachmentsInContent,
   removeStorageAndNoteReferences,