Add support for converting to MD when paste HTML

browser/components/CodeEditor.js

@@ -14,6 +14,8 @@ import consts from 'browser/lib/consts'
 import fs from 'fs'
 const { ipcRenderer } = require('electron')
 import normalizeEditorFontFamily from 'browser/lib/normalizeEditorFontFamily'
+import TurndownService from 'turndown'
+import { gfm } from 'turndown-plugin-gfm'
 
 CodeMirror.modeURL = '../node_modules/codemirror/mode/%N/%N.js'
 
@@ -52,6 +54,9 @@ export default class CodeEditor extends React.Component {
     this.searchState = null
 
     this.formatTable = () => this.handleFormatTable()
+
+    this.turndownService = new TurndownService()
+    this.turndownService.use(gfm)
   }
 
   handleSearch (msg) {
@@ -406,6 +411,12 @@ export default class CodeEditor extends React.Component {
       )
       return prevChar === '](' && nextChar === ')'
     }
+
+    const pastedHtml = clipboardData.getData('text/html')
+    if (pastedHtml !== '') {
+      this.handlePasteHtml(e, editor, pastedHtml)
+    }
+
     if (dataTransferItem.type.match('image')) {
       attachmentManagement.handlePastImageEvent(this, storageKey, noteKey, dataTransferItem)
     } else if (this.props.fetchUrlTitle && isURL(pastedTxt) && !isInLinkTag(editor)) {
@@ -459,6 +470,12 @@ export default class CodeEditor extends React.Component {
     })
   }
 
+  handlePasteHtml (e, editor, pastedHtml) {
+    e.preventDefault()
+    const markdown = this.turndownService.turndown(pastedHtml)
+    editor.replaceSelection(markdown)
+  }
+
   mapNormalResponse (response, pastedTxt) {
     return this.decodeResponse(response).then((body) => {
       return new Promise((resolve, reject) => {

package.json

@@ -100,7 +100,9 @@
     "sanitize-html": "^1.18.2",
     "striptags": "^2.2.1",
     "unique-slug": "2.0.0",
-    "uuid": "^3.2.1"
+    "uuid": "^3.2.1",
+    "turndown":"^4.0.2",
+    "turndown-plugin-gfm":"^1.0.2"
   },
   "devDependencies": {
     "ava": "^0.25.0",

yarn.lock

@@ -93,6 +93,10 @@ abab@^1.0.3, abab@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.4.tgz#5faad9c2c07f60dd76770f71cf025b62a63cfd4e"
 
+abab@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/abab/-/abab-2.0.0.tgz#aba0ab4c5eee2d4c79d3487d85450fb2376ebb0f"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -138,6 +142,10 @@ acorn@^5.0.0, acorn@^5.3.0, acorn@^5.5.0:
   version "5.5.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
 
+acorn@^5.5.3:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+
 ajv-keywords@^1.0.0:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-1.5.1.tgz#314dd0a4b3368fad3dfcdc54ede6171b886daf3c"
@@ -2162,6 +2170,12 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   dependencies:
     cssom "0.3.x"
 
+cssstyle@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.0.0.tgz#79b16d51ec5591faec60e688891f15d2a5705129"
+  dependencies:
+    cssom "0.3.x"
+
 ctype@0.5.3:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/ctype/-/ctype-0.5.3.tgz#82c18c2461f74114ef16c135224ad0b9144ca12f"
@@ -2673,7 +2687,7 @@ domelementtype@~1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
 
-domexception@^1.0.0:
+domexception@^1.0.0, domexception@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.1.tgz#937442644ca6a31261ef36e3ec677fe805582c90"
   dependencies:
@@ -3010,6 +3024,17 @@ escodegen@^1.6.1, escodegen@^1.9.0:
   optionalDependencies:
     source-map "~0.6.1"
 
+escodegen@^1.9.1:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.11.0.tgz#b27a9389481d5bfd5bec76f7bb1eb3f8f4556589"
+  dependencies:
+    esprima "^3.1.3"
+    estraverse "^4.2.0"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.6.1"
+
 escope@^3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
@@ -5257,6 +5282,37 @@ jsdom@^11.5.1:
     ws "^4.0.0"
     xml-name-validator "^3.0.0"
 
+jsdom@^11.9.0:
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.12.0.tgz#1a80d40ddd378a1de59656e9e6dc5a3ba8657bc8"
+  dependencies:
+    abab "^2.0.0"
+    acorn "^5.5.3"
+    acorn-globals "^4.1.0"
+    array-equal "^1.0.0"
+    cssom ">= 0.3.2 < 0.4.0"
+    cssstyle "^1.0.0"
+    data-urls "^1.0.0"
+    domexception "^1.0.1"
+    escodegen "^1.9.1"
+    html-encoding-sniffer "^1.0.2"
+    left-pad "^1.3.0"
+    nwsapi "^2.0.7"
+    parse5 "4.0.0"
+    pn "^1.1.0"
+    request "^2.87.0"
+    request-promise-native "^1.0.5"
+    sax "^1.2.4"
+    symbol-tree "^3.2.2"
+    tough-cookie "^2.3.4"
+    w3c-hr-time "^1.0.1"
+    webidl-conversions "^4.0.2"
+    whatwg-encoding "^1.0.3"
+    whatwg-mimetype "^2.1.0"
+    whatwg-url "^6.4.1"
+    ws "^5.2.0"
+    xml-name-validator "^3.0.0"
+
 jsdom@^9.4.2:
   version "9.12.0"
   resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-9.12.0.tgz#e8c546fffcb06c00d4833ca84410fed7f8a097d4"
@@ -5416,7 +5472,7 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
-left-pad@^1.2.0:
+left-pad@^1.2.0, left-pad@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e"
 
@@ -6288,6 +6344,10 @@ nwsapi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/nwsapi/-/nwsapi-2.0.0.tgz#7c8faf4ad501e1d17a651ebc5547f966b547c5c7"
 
+nwsapi@^2.0.7:
+  version "2.0.8"
+  resolved "https://registry.yarnpkg.com/nwsapi/-/nwsapi-2.0.8.tgz#e3603579b7e162b3dbedae4fb24e46f771d8fa24"
+
 oauth-sign@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.6.0.tgz#7dbeae44f6ca454e1f168451d630746735813ce3"
@@ -7028,6 +7088,10 @@ pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
+psl@^1.1.24:
+  version "1.1.29"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
+
 punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
@@ -7510,7 +7574,7 @@ request@2.55.0:
     tough-cookie ">=0.12.0"
     tunnel-agent "~0.4.0"
 
-request@^2.45.0, request@^2.79.0, request@^2.83.0:
+request@^2.45.0, request@^2.79.0, request@^2.83.0, request@^2.87.0:
   version "2.87.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.87.0.tgz#32f00235cd08d482b4d0d68db93a829c0ed5756e"
   dependencies:
@@ -8515,6 +8579,13 @@ tough-cookie@>=0.12.0, tough-cookie@>=2.3.3, tough-cookie@^2.3.2, tough-cookie@^
   dependencies:
     punycode "^1.4.1"
 
+tough-cookie@^2.3.4:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
+  dependencies:
+    psl "^1.1.24"
+    punycode "^1.4.1"
+
 tr46@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
@@ -8565,6 +8636,16 @@ tunnel-agent@~0.4.0:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
 
+turndown-plugin-gfm@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/turndown-plugin-gfm/-/turndown-plugin-gfm-1.0.2.tgz#6f8678a361f35220b2bdf5619e6049add75bf1c7"
+
+turndown@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/turndown/-/turndown-4.0.2.tgz#c3ddb8ba32a3665723599be2f4e7860adb6042ae"
+  dependencies:
+    jsdom "^11.9.0"
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
@@ -9098,6 +9179,12 @@ ws@^4.0.0:
     async-limiter "~1.0.0"
     safe-buffer "~5.1.0"
 
+ws@^5.2.0:
+  version "5.2.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
+  dependencies:
+    async-limiter "~1.0.0"
+
 xdg-basedir@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"