Rework of the log in system

[GoogleCodeExporter]

Current behavior:
 * user cannot open the editor without logging in to Google Accounts;
 * if there are connection issues, the cloud options (log out, share, save to cloud, open) are disabled;

This approach causes various issues, notably it makes it impossible to 
implement App Cache reliably.

Proposed behavior:
 * user can open the app without logging in;
 * after the app is initialized, the app checks for login;
 * if the user is logged into Google Accounts, disable options that depend on logging in: open/save to cloud, share.
 * if the user tries to use a feature that depends on login, request login either in another window or save changes, redirect to Google Accounts login and get back to the saved file.

Original issue reported on code.google.com by dsto...@gmail.com on 12 Aug 2010 at 10:39

• Blocking: #11, #19

[GoogleCodeExporter]

Original comment by dsto...@gmail.com on 12 Aug 2010 at 10:39

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Original comment by dsto...@gmail.com on 13 Aug 2010 at 2:17

[GoogleCodeExporter]

This issue was closed by revision r58.

Original comment by dsto...@gmail.com on 14 Aug 2010 at 12:37

• Changed state: Fixed