Digital Inspiration Technology Blog: Send Self-Destructing Messages with Google Docs

Monday 15 October 2012

Digital Inspiration Technology Blog



Digital Inspiration is an award-winning how-to tech blog around all things related to computer software, web applications, mobile and personal productivity.



Send Self-Destructing Messages with Google Docs

http://www.labnol.org/internet/send-self-destructing-messages/26125/

Oct 15th 2012, 12:52



Would you like to send a confidential note to a friend that self-destructs after it has been read so that no one else (including your friend) can ever see that secret note again? Maybe it has a password that shouldn't be stored anywhere. Or you are worried that the private note can get leaked online. →There are web apps – like Burn Note and Privnote - that offer an easy solution. They essentially create a temporary web page that auto-expires after it has been viewed once. Dashlane is another app also lets you send encrypted notes from the desktop and the recipient gets 30 minutes of reading time after which the note will vanish forever.Alternatively, you can even use Google Docs to send secret, self-destructing messages to anyone in few easy steps. Here's a quick video demo:http://www.youtube.com/watch?v=o5jX58eEicYSelf-Destructing Messages in Google DocsIt takes a minute to convert a Google Docs sheet into a self-destructing one.Click here to make a copy of the Google sheet in your own account. Once the sheet is auto-cleared, type your secret message anywhere inside the sheet and hit the Share button to send it to a friend. Make sure the permission is set to "Can Edit" in the sharing window.Your friend opens the sheet, reads the message and after 10 seconds, the entire sheet on his screen will clear itself. If you wish to send another self-destructing message, create a copy of the original sheet and repeat the steps.How does it work?The trick is simple. We have an onOpen trigger attached to the Google sheet that becomes active as soon as the sheet is opened. This trigger waits for 10 seconds (Utilities.sleep) and then runs the clear() command to empty all the cells of the sheet.Here's the Google Apps Script code that actually makes your "secret message" vanish.

function onOpen() {



var time = 10; // Wait Time (in seconds)



var ss = SpreadsheetApp.getActiveSpreadsheet();

ss.toast("This message will disappear after " + time + " seconds");



Utilities.sleep(time*1000);

ss.toast("We are now sending this private note to the shredder");



ss.getActiveSheet()

.getRange(1, 1, ss.getLastRow(), ss.getLastColumn()).clear();

}



This story, Send Self-Destructing Messages with Google Docs, was originally published at Digital Inspiration on 15/10/2012 under Google Docs, Password, Internet.













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