feat: Added Context Menu for markdown preview mode and copy url when hyperlink

browser/lib/contextMenuBuilder.js

@@ -1,6 +1,12 @@
+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.
@@ -62,4 +68,61 @@ const buildEditorContextMenu = function (editor, event) {
   return Menu.buildFromTemplate(template)
 }
 
-module.exports = buildEditorContextMenu
+/**
+ * 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: 'cut'
+  }, {
+    role: 'copy'
+  }, {
+    role: 'paste'
+  }, {
+    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
+}