Pass selected file to a Virtru encrypt function.

encryptFromDialog.js

async function encrypt(filePath, fileName) {
  const encryptParams = new Virtru.EncryptParamsBuilder()
    .withFileSource(filePath)
    .withDisplayFilename(fileName)
    .build();
  ct = await client.encrypt(encryptParams);
  await ct.toFile(`${filePath}.tdf3.html`);
}

ipcMain.on('open-file-dialog', async (event) => {
  client = new Virtru.Client({email, appId});
  var paths = dialog.showOpenDialogSync(win, {
    properties: ['openFile', 'multiSelections']
  });
  //support encryption of multiple file selections
  for (i in paths) {
    var array = (paths[i]).split("/");
    var fileName = array[(array.length - 1)];
    encrypt(paths[i], fileName);
  }
})