Google SpreadSheetのデータ入力支援サイドバーをつくってみる　その５：値を入力できるようにする

実際のところ

page.html

<!DOCTYPE html>
<html>
  <head>
    <base target="_top">
  </head>
  <body>
    <p>Hello, world!</p>
    <hr/>
    <div id="output">none</div>
    <form id="myForm" onsubmit="handleFormSubmit(this)">
      <input name="value" type="text" />
      <input type="submit" value="Submit" />
    </form>
    <hr/>
    <input type="button" value="Close" onclick="google.script.host.close()" />
  </body>
  <script>
      // submit時に別窓に飛ぶことを防止
      function preventFormSubmit() {
        var forms = document.querySelectorAll('form');
        for (var i = 0; i < forms.length; i++) {
          forms[i].addEventListener('submit', function(event) {
            event.preventDefault();
          });
        }
      }
      //イベントリスナーに登録
      window.addEventListener('load', preventFormSubmit);  
  
  
    function onSuccess(numUnread) {
      var div = document.getElementById('output');
      div.innerHTML = "<p>sucess!</p>";
    }
    
    function handleFormSubmit(formObject) {
      return google.script.run.withSuccessHandler(onSuccess).changeVal(formObject);
    }
  </script>

code.gs

function onOpen() {
  //サイドメニュー表示
  SpreadsheetApp.getUi() 
      .createMenu('Custom Menu')
      .addItem('Show sidebar', 'showSidebar')
      .addToUi();
}

function changeVal(formObject){
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var cell = ss.getSheets()[0].getRange('B5');
  var result = cell.setValue(formObject.value);
  return;
}

function showSidebar() {
  //サイドバー
  var html = HtmlService.createHtmlOutputFromFile('page')
      .setTitle('My custom sidebar')
      .setWidth(300); //幅300px
  SpreadsheetApp.getUi() 
      .showSidebar(html);
}