save drafts during compose or reply

[tomholub]

When I type my email or response, drafts should get continuously uploaded to Gmail API (can skip IMAP for now).

• once a second, check if the content of the message, subject or recipients have changed compared to previous second
• if it changed, and initiate an upload/update of draft in the background
• (If it's the first upload of this draft, receive back the draft ID, and then use that draft id in subsequent updates of the draft)
• if it didn't change, skip updating draft and wait until next run
• cancel this timer when user leaves the screen through any means (back button or menu -> other place), but make sure to run this method one last time in the background while the screen is being switched, to ensure the last changes are saved
• do not include attachments in these drafts (Gmail API is not good, would need to re-upload them each time)

[ekievsky]

@tomholub How do I restore this draft, should we put the drafted text into the new message?

[ekievsky]

@tomholub something happened

[tomholub]

Thanks. I'm in the process of getting the app verified with increased scopes (added contacts scope)