Support Evernote task lists.

.gitignore

@@ -7,3 +7,6 @@ Thumbs.db
 
 # Build directory
 dist
+
+# JetBrains WebStorm
+.idea

contributors/makethemo.md

@@ -0,0 +1,9 @@
+2017-11-12
+
+I hereby agree to the terms of the "Markdown Here Individual Contributor License Agreement", with MD5 checksum 6a31e08cf66139e91c0db5599b6ab084.
+
+I furthermore declare that I am authorized and able to make this agreement and sign this declaration.
+
+Signed,
+
+Jinseop Mo https://github.com/makethemo

src/common/markdown-render.js

@@ -72,6 +72,28 @@ function markdownRender(mdText, userprefs, marked, hljs) {
     return defaultLinkRenderer.call(this, href, title, text);
   };
 
+  var defaultListRenderer = markedRenderer.list;
+  markedRenderer.list = function(body, ordered) {
+    if (userprefs['evernote-task-lists-enabled'] && /<.*en-todo.*>/.test(body)) {
+      return '<div>' + body + '</div>\n';
+    }
+    return defaultListRenderer.call(this, body, ordered);
+  };
+
+  var defaultListItemRenderer = markedRenderer.listitem;
+  markedRenderer.listitem = function(text) {
+    if (userprefs['evernote-task-lists-enabled'] && /\s*\[[x ]\]\s*/.test(text)) {
+      var todoImg = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
+      text = text
+          .replace(/\s*\[ \]\s*/g, '<img class="en-todo" src="' + todoImg + '"> ')
+          .replace(/\s*\[x\]\s*/g, '<img class="en-todo en-todo-checked" src="' + todoImg + '"> ');
+      return '<div>' + text + '</div>\n';
+    }
+    else {
+      return defaultListItemRenderer.call(this, text);
+    }
+  };
+
   var markedOptions = {
     renderer: markedRenderer,
     gfm: true,

src/common/mdh-html-to-text.js

@@ -111,6 +111,11 @@ MdhHtmlToText.prototype._preprocess = function() {
                           /&lt;<a (href="mailto:[^>]+)>([^<]*)<\/a>&gt;/ig,
                           '&lt;&lt;a $1&gt;$2&lt;\/a&gt;&gt;');
 
+  // Support Evernote task lists.
+  // This code must be executed before handling <img>.
+  this.preprocessInfo.html = this.preprocessInfo.html.replace(/<.*en-todo-checked.*>/ig, '- [x]')
+                                                     .replace(/<.*en-todo.*>/ig, '- [ ]');
+
   // It's a deviation from Markdown, but we'd like to leave any rendered
   // images already in the email intact. So we'll escape their tags.
   // Note that we can't use excludeTagBlocks because there's no closing tag.

src/common/options.html

@@ -634,6 +634,13 @@ <h1>
           </label>
         </div>
         <hr/>
+        <div>
+          <input type="checkbox" id="evernote-task-lists-enabled"/>
+          <label for="evernote-task-lists-enabled" data-i18n="evernote_task_lists_enabled_label">
+            <b>Enable Evernote task lists.</b>
+          </label>
+        </div>
+        <hr/>
       </div>
 
       <div class="control-group">

src/common/options.js

@@ -16,7 +16,7 @@
 var cssEdit, cssSyntaxEdit, cssSyntaxSelect, rawMarkdownIframe, savedMsg,
     mathEnable, mathEdit, hotkeyShift, hotkeyCtrl, hotkeyAlt, hotkeyKey,
     forgotToRenderCheckEnabled, headerAnchorsEnabled, gfmLineBreaksEnabled,
-    loaded = false;
+    evernoteTaskListsEnabled, loaded = false;
 
 function onLoad() {
   var xhr;
@@ -41,6 +41,7 @@ function onLoad() {
   forgotToRenderCheckEnabled = document.getElementById('forgot-to-render-check-enabled');
   headerAnchorsEnabled = document.getElementById('header-anchors-enabled');
   gfmLineBreaksEnabled = document.getElementById('gfm-line-breaks-enabled');
+  evernoteTaskListsEnabled = document.getElementById('evernote-task-lists-enabled');
 
   //
   // Syntax highlighting styles and selection
@@ -91,6 +92,8 @@ function onLoad() {
 
     gfmLineBreaksEnabled.checked = prefs['gfm-line-breaks-enabled'];
 
+    evernoteTaskListsEnabled.checked = prefs['evernote-task-lists-enabled'];
+
     // Start watching for changes to the styles.
     setInterval(checkChange, 100);
   });
@@ -215,7 +218,7 @@ function checkChange() {
         mathEnable.checked + mathEdit.value +
         hotkeyShift.checked + hotkeyCtrl.checked + hotkeyAlt.checked + hotkeyKey.value +
         forgotToRenderCheckEnabled.checked + headerAnchorsEnabled.checked +
-        gfmLineBreaksEnabled.checked;
+        gfmLineBreaksEnabled.checked + evernoteTaskListsEnabled.checked;
 
   if (newOptions !== lastOptions) {
     // CSS has changed.
@@ -246,7 +249,8 @@ function checkChange() {
                     },
           'forgot-to-render-check-enabled': forgotToRenderCheckEnabled.checked,
           'header-anchors-enabled': headerAnchorsEnabled.checked,
-          'gfm-line-breaks-enabled': gfmLineBreaksEnabled.checked
+          'gfm-line-breaks-enabled': gfmLineBreaksEnabled.checked,
+          'evernote-task-lists-enabled' : evernoteTaskListsEnabled.checked
         },
         function() {
           updateMarkdownRender();