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Home > Web Development > Front End Web Development > Learning Google Apps Script
Learning Google Apps Script
Learning Google Apps Script

Learning Google Apps Script: Customize and automate Google Applications using Apps Script

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Learning Google Apps Script

Chapter 2. Creating Basic Elements

In the previous chapter, you learned about Google Apps Script (GAS) and how to create a script project. In this chapter, you will learn how to create a clickable button, a custom menu, a message box, a sidebar and dialogs, as well as how to debug your script. We will use Sheets for the first two tasks and Docs for all the other tasks.

Creating a clickable button

In the previous chapter, you learned how to open the script editor in Google Sheets. For this task, open the script editor in a newly created or any existing Google Sheet and follow these steps:

  1. Select cell B3 or any other cell. Click on Insert and select Drawing..., as shown in the following screenshot:
    Creating a clickable button
  2. A drawing editor window will open. Click on the Text box icon and then click anywhere within the canvas area. Type Click Me. Resize the object to enclose the text only, as shown in the following screenshot:
    Creating a clickable button
  3. Click on Save & Close to exit the drawing editor. Now, the Click Me image will be inserted into the active cell (B3), as shown in the following screenshot:
    Creating a clickable button

    You can drag this image anywhere around the spreadsheet except in the menu bar.

    Tip

    In Google Sheets, images are not anchored to a particular cell, and they can be dragged or moved around.

    If you click on the image, a drop-down arrow on the top-right corner will be visible:

    Creating a clickable button
  4. Click on the Assign script…...

Showing toast when a button is clicked

Toast appears as a popup window in the lower-right corner of the active spreadsheet with a title and message. To create a toast dialog, edit or replace the greeting function as follows:

function greeting() {
  SpreadsheetApp.getActiveSpreadsheet()
   .toast("Hello World!", "Greeting");
}

Now if you click the button, then a toast dialog will appear as shown in the following screenshot, and it disappears within 5 seconds (the default):

Showing toast when a button is clicked

You can include a third argument, that is, timeout seconds, in the toast method. This means how long the toast will be visible for. Put a negative number if you want it to show up forever. For example, toast("Hello World!", "Greeting", -1).

Tip

Toast only works in Sheets.

Creating a custom menu

You might be wondering whether you can execute the greeting function without the help of the button. The answer is yes. In the script editor, there is a Run menu. If you click on Run | greeting, then the greeting function will be executed and the message box will open.

Creating a button for every function may not be feasible. Although you cannot alter or add items to the application's standard menu (except the Add-ons menu) such as File, Edit, View, and so on, you can add custom menus and menu items.

For this task, create a new Google Docs document or open an existing document. Open the script editor and type these two functions:

function createMenu() {
  DocumentApp.getUi()
   .createMenu("PACKT")
   .addItem("Greeting","greeting")
   .addToUi();
}

function greeting() {
  var ui = DocumentApp.getUi();
  ui.alert("Greeting", "Hello World!", ui.ButtonSet.OK);
}

In the first function, you are using the DocumentApp...

Creating a sidebar

A sidebar is a static dialog box and is included on the right-hand side of the document editor window. To create a sidebar, type the following code in the editor:

function onOpen() {
  var htmlOutput = HtmlService
  .createHtmlOutput('<button onclick="alert(\'Hello World!\');">Click Me</button>')
  .setTitle('My Sidebar');

  DocumentApp.getUi().showSidebar(htmlOutput);
}

In the preceding code, you are using HtmlService and invoking its method createHtmlOutput then consecutively invoking the setTitle method. To test this code, run the onOpen function or reload the document. The sidebar will open in the right-hand side of the document window as shown in the following screenshot. The sidebar layout size is a fixed one, which means you cannot change, alter, or resize it.

Creating a sidebar

The button in the sidebar is an HTML element, not a GAS element, and if clicked, it opens the browser interface's alert box.

Creating an Add-ons menu

In the previous task, you included the HTML code inline as a string argument to the createHtmlOutput method. Alternatively, you can put this HTML snippet in a separate HTML file.

To create a new HTML file, in the script editor, go to File | New | Html file, as shown in the following screenshot:

Creating an Add-ons menu

Then in the Create File box, enter your preferred name for the new HTML file. For this task, enter Index and click on the OK button. The .html extension will be added automatically.

Creating an Add-ons menu

A new Index.html file will be created with a few lines of default HTML code, as shown in the following screenshot:

Creating an Add-ons menu

Insert your button tags between the body tags as shown here:

<!DOCTYPE html>
<html>
  <head>
    <base target="_top">
  </head>
  <body>
    <button onclick="alert('Hello World!');">Click Me</button>
  </body>
</html>

Insert the code shown here in the Code.gs file:

function onOpen(){
  DocumentApp...

Creating a clickable button

In the previous chapter, you learned how to open the script editor in Google Sheets. For this task, open the script editor in a newly created or any existing Google Sheet and follow these steps:

  1. Select cell B3 or any other cell. Click on Insert and select Drawing..., as shown in the following screenshot:

  2. A drawing editor window will open. Click on the Text box icon and then click anywhere within the canvas area. Type Click Me. Resize the object to enclose the text only, as shown in the following screenshot:

  3. Click on Save & Close to exit the drawing editor. Now, the Click Me image will be inserted into the active cell (B3), as shown in the following screenshot:

    You can drag this image anywhere around the spreadsheet except in the menu bar.

    Tip

    In Google Sheets, images are not anchored to a particular cell, and they can be dragged or moved around.

    If you click on the image, a drop-down arrow on the top-right corner will be visible:

  4. Click on the Assign script… menu item...

Showing toast when a button is clicked

Toast appears as a popup window in the lower-right corner of the active spreadsheet with a title and message. To create a toast dialog, edit or replace the greeting function as follows:

function greeting() {
  SpreadsheetApp.getActiveSpreadsheet()
   .toast("Hello World!", "Greeting");
}

Now if you click the button, then a toast dialog will appear as shown in the following screenshot, and it disappears within 5 seconds (the default):

You can include a third argument, that is, timeout seconds, in the toast method. This means how long the toast will be visible for. Put a negative number if you want it to show up forever. For example, toast("Hello World!", "Greeting", -1).

Tip

Toast only works in Sheets.

Creating a custom menu

You might be wondering whether you can execute the greeting function without the help of the button. The answer is yes. In the script editor, there is a Run menu. If you click on Run | greeting, then the greeting function will be executed and the message box will open.

Creating a button for every function may not be feasible. Although you cannot alter or add items to the application's standard menu (except the Add-ons menu) such as File, Edit, View, and so on, you can add custom menus and menu items.

For this task, create a new Google Docs document or open an existing document. Open the script editor and type these two functions:

function createMenu() {
  DocumentApp.getUi()
   .createMenu("PACKT")
   .addItem("Greeting","greeting")
   .addToUi();
}

function greeting() {
  var ui = DocumentApp.getUi();
  ui.alert("Greeting", "Hello World!", ui.ButtonSet.OK);
}

In the first function, you are using the DocumentApp class, invoking the getUi method, and consecutively invoking...

Creating a sidebar

A sidebar is a static dialog box and is included on the right-hand side of the document editor window. To create a sidebar, type the following code in the editor:

function onOpen() {
  var htmlOutput = HtmlService
  .createHtmlOutput('<button onclick="alert(\'Hello World!\');">Click Me</button>')
  .setTitle('My Sidebar');

  DocumentApp.getUi().showSidebar(htmlOutput);
}

In the preceding code, you are using HtmlService and invoking its method createHtmlOutput then consecutively invoking the setTitle method. To test this code, run the onOpen function or reload the document. The sidebar will open in the right-hand side of the document window as shown in the following screenshot. The sidebar layout size is a fixed one, which means you cannot change, alter, or resize it.

The button in the sidebar is an HTML element, not a GAS element, and if clicked, it opens the browser interface's alert box.

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Page 1 of 10

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Key benefits

  • Gain insight into customizing and automating Google applications with JavaScript
  • Create add-ons for Google Sheets, Docs, or Forms; automate your workflow; integrate with external APIs; and more.
  • A step-by-step guide to building real-world solutions

Description

Google Apps Script is a cloud-based scripting language based on JavaScript to customize and automate Google applications. Apps Script makes it easy to create and publish add-ons in an online store for Google Sheets, Docs, and Forms. It serves as one single platform to build, code, and ultimately share your App on the Web store. This book begins by covering the basics of the Google application platform and goes on to empower you to automate most of the Google applications. You will learn the concepts of creating a menu, sending mails, building interactive web pages, and implementing all these techniques to develop an interactive Web page as a form to submit sheets You will be guided through all these tasks with plenty of screenshots and code snippets that will ensure your success in customizing and automating various Google applications This guide is an invaluable tutorial for beginners who intend to develop the skills to automate and customize Google applications

Who is this book for?

Newbies to google apps script but having practical experience in Javascript.

What you will learn

  • Learn about the Google Apps script platform and work with scripts to develop Google apps
  • Create custom menus and dialogs
  • Parse and send emails
  • Generate Google calendar events
  • Build Translator and RSS reader applications
  • Develop interactive web pages
  • Design interactive web-forms
  • Form a workflow application

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Mar 18, 2016
Length: 232 pages
Edition : 1st
Language : English
ISBN-13 : 9781785882456
Category :
Web Development
Concepts :
Front End Web Development
Tools :
Google Apps Script

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Product feature icon Download this book in EPUB and PDF formats
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Product Details

Publication date : Mar 18, 2016
Length: 232 pages
Edition : 1st
Language : English
ISBN-13 : 9781785882456
Category :
Web Development
Concepts :
Front End Web Development
Tools :
Google Apps Script

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Table of Contents

10 Chapters
1. Introducing Google Apps Scripts Chevron down icon Chevron up icon
1. Introducing Google Apps Scripts
Google Applications
Google Apps Script
Google Drive
Gmail
Google Calendar
Google Docs
Google Sheets
Google Apps services
Script projects
Google Forms
Summary
2. Creating Basic Elements Chevron down icon Chevron up icon
2. Creating Basic Elements
Creating a clickable button
Showing toast when a button is clicked
Creating a custom menu
Creating a sidebar
Creating an Add-ons menu
Creating a modal dialog
Creating a modeless dialog
Debugging your script
Summary
3. Parsing and Sending E-mails Chevron down icon Chevron up icon
3. Parsing and Sending E-mails
Creating Gmail Contacts by script
Accessing Sheet, cell, range, and offset
Reading and writing the Sheet data
Building a Gmail Contact search application
Building the Gmail parser application
Properties service
Downloading Gmail attachments to Drive
Sending e-mails using the MailApp service
Sending an e-mail notification on Form submission
Creating triggers manually
Creating and deleting triggers by script
Forwarding e-mails if the specific keyword is found in the message body
Sending e-mail with attachments
Embedding inline images in an e-mail message
Building an e-mail merger application
Summary
4. Creating Interactive Forms Chevron down icon Chevron up icon
4. Creating Interactive Forms
Creating Forms using script
Publishing the script as a web application
HtmlService
Creating a Form using HtmlService
Submitting form using Google script API method
Creating forms using add-ons CSS and jQuery libraries
Creating an e-voting application
Creating a ticket reservation application
Summary
5. Creating Google Calendar and Drive Applications Chevron down icon Chevron up icon
5. Creating Google Calendar and Drive Applications
The CalendarApp class
Enabling advanced Google services
The DriveApp class
Summary
6. Creating Feed Reader and Translator Applications Chevron down icon Chevron up icon
6. Creating Feed Reader and Translator Applications
The UrlFetchApp class
RSS and Atom feeds
The LanguageApp class
Creating a document reviewing and instant inline commenting application
Summary
7. Creating Interactive Webpages Chevron down icon Chevron up icon
7. Creating Interactive Webpages
Creating a web app to render Sheet data as HTML
Creating a web app to return JSON
Converting Sheet data as a PDF file
Sending an HTTP/HTTPS request with query string
Creating RSS feed using ContentService
Creating a file upload application
Creating an employee timesheet application
Summary
8. Building a Workflow Application Chevron down icon Chevron up icon
8. Building a Workflow Application
Order processing workflow – steps explained
Configuring Google Sheets
Creating the Order form
Enhancing the Order form
Creating the dispatch form
Dispatching the articles
Enabling the user to acknowledge the article delivery
Summary
9. More Tips and Tricks and Creating an Add-on Chevron down icon Chevron up icon
9. More Tips and Tricks and Creating an Add-on
Overcoming the "script exceeded maximum execution time" error
Configuring your script project to use external libraries
Using JSDoc annotations
Using the OAuth open source library
Creating, testing, and publishing add-ons
Other useful links
Summary
Index Chevron down icon Chevron up icon
Index

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Rating distribution
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
(6 Ratings)
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4 star 16.7%
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markr Oct 20, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I noticed a review that claimed that the Kindle version of this book was "unreadable" not only is that claim incorrect but the book is actually excellent. For someone to be allowed to give a 1 star rating because of a problem with their reader is disgraceful. I hope someone removes it.
Amazon Verified review Amazon
Daniel Dec 05, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I am an "enthusiast" programmer so I kind of drift from project to project and language to language but I always come back to this book to get started up in Google App Script.I find it very useful. It is a great primer and its examples are short and to the point. A similar book I had tried to use was doing a working example throughout and it gets hard when there is a problem because you reach a dead end. That was not the case in the book. I can look at an example of a couple of pages and get going. Between that and looking at the online documentation from Google, you are good to go. Even his Utilities.sleep(1000) was very good practice as I had to insert over 200 calendar events without getting over the limit.It is even better to use on Kindle because you can bookmark and jump from place to place getting to the "good" stuff when you want to make something.It was a very good reference as well as introduction for me. I very highly recommend it for that.
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Amazon Customer Mar 22, 2017
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Once fleshed out more, this is a very useful book. It has helped me with several problems already, but GAS is so extensive and the book so short, that many things still are not covered (OK -- this will always be the case, but more is better).
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Praveen Jain Jul 27, 2023
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Overpriced, no explanation in the book, only code
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Cliente de Amazon Jun 01, 2016
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
The free kindle sample is pretty much worthless .... Only the table of Contents, the Disclaimer and the credits can be "read".This does not five any real insight about the usefulness or not of this book. And I am not willing to pay 31.99 for something am am not sure will be of use. Sad.
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About the author

Profile icon Ganapathy
Ganapathy
Ramalingam Ganapathy is an independent computer software professional with more than 15 years of working experience of JavaScript and Google Apps Script. In 1985, he started his career as a digital electronic circuit designer and service engineer. Highly interested in reading technical books and building electronic projects, he is a detail-oriented and logical person. Since 2001, he has been freelancing with Elance and Upwork (formerly oDesk). He earned a good reputation on the Upwork portal, and most of his clients are satisfied.
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If you already have Adobe reader installed, then clicking on the link will download and open the PDF file directly. If you don't, then save the PDF file on your machine and download the Reader to view it.

Please Note: Packt eBooks are non-returnable and non-refundable.

Packt eBook and Licensing When you buy an eBook from Packt Publishing, completing your purchase means you accept the terms of our licence agreement. Please read the full text of the agreement. In it we have tried to balance the need for the ebook to be usable for you the reader with our needs to protect the rights of us as Publishers and of our authors. In summary, the agreement says:

  • You may make copies of your eBook for your own use onto any machine
  • You may not pass copies of the eBook on to anyone else
How can I make a purchase on your website? Chevron down icon Chevron up icon

If you want to purchase a video course, eBook or Bundle (Print+eBook) please follow below steps:

  1. Register on our website using your email address and the password.
  2. Search for the title by name or ISBN using the search option.
  3. Select the title you want to purchase.
  4. Choose the format you wish to purchase the title in; if you order the Print Book, you get a free eBook copy of the same title. 
  5. Proceed with the checkout process (payment to be made using Credit Card, Debit Cart, or PayPal)
Where can I access support around an eBook? Chevron down icon Chevron up icon
  • If you experience a problem with using or installing Adobe Reader, the contact Adobe directly.
  • To view the errata for the book, see www.packtpub.com/support and view the pages for the title you have.
  • To view your account details or to download a new copy of the book go to www.packtpub.com/account
  • To contact us directly if a problem is not resolved, use www.packtpub.com/contact-us
What eBook formats do Packt support? Chevron down icon Chevron up icon

Our eBooks are currently available in a variety of formats such as PDF and ePubs. In the future, this may well change with trends and development in technology, but please note that our PDFs are not Adobe eBook Reader format, which has greater restrictions on security.

You will need to use Adobe Reader v9 or later in order to read Packt's PDF eBooks.

What are the benefits of eBooks? Chevron down icon Chevron up icon
  • You can get the information you need immediately
  • You can easily take them with you on a laptop
  • You can download them an unlimited number of times
  • You can print them out
  • They are copy-paste enabled
  • They are searchable
  • There is no password protection
  • They are lower price than print
  • They save resources and space
What is an eBook? Chevron down icon Chevron up icon

Packt eBooks are a complete electronic version of the print edition, available in PDF and ePub formats. Every piece of content down to the page numbering is the same. Because we save the costs of printing and shipping the book to you, we are able to offer eBooks at a lower cost than print editions.

When you have purchased an eBook, simply login to your account and click on the link in Your Download Area. We recommend you saving the file to your hard drive before opening it.

For optimal viewing of our eBooks, we recommend you download and install the free Adobe Reader version 9.