DialogJavaScript.html

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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 *
 *     http://www.apache.org/licenses/LICENSE-2.0
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * See the License for the specific language governing permissions and
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<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
  /**
   * Run initializations on dialog load.
   */
  $(function() {
    // Assign handler functions to dialog elements here, if needed.
    $('#title-form').submit(onTitleSave);

    // Call the server here to retrieve any information needed to build
    // the dialog, if necessary.
    google.script.run
       .withSuccessHandler(function(title) {
            // Respond to success conditions here.
            $('#dialog-title').val(title);
            showStatus('Ready.');
          })
       .withFailureHandler(function(msg) {
            // Respond to failure conditions here.
            showStatus('Error retrieving title: ' + msg, 'error');
          })
       .getDocTitle();

  });

  /**
   * Calls the server to modify the document.
   * Changes the document title to match the dialog text.
   */
  function onTitleSave() {
    this.disabled = true;
    showStatus('Saving...');

    // Gather any information that needs to be sent to the server here.
    var title = $('#dialog-title').val();

    // Send the value to the server and handle the response.
    google.script.run
        .withSuccessHandler(
          function(msg, element) {
            // Respond to success conditions here.
            showStatus('Document title saved.');
            element.disabled = false;
          })
        .withFailureHandler(
          function(msg, element) {
            // Respond to failure conditions here.
            showStatus('Could not save title: ' + msg, 'error');
            element.disabled = false;
          })
        .withUserObject(this)
        .setDocTitle(title);
    return false;
  }

  /**
   * Displays the given status message in the dialog.
   *
   * @param {String} msg The status message to display.
   * @param {String} classId The message type (class id) that the message
   *   should be displayed as.
   */
  function showStatus(msg, classId) {
    $('#dialog-status').removeClass().html(msg);
    if (classId) {
      $('#dialog-status').addClass(classId);
    }
  }

</script>