dragging read-only calendars should not be allowed

[Victor gonzalez]

Enviroment:

current build number: 414
device name: krillin
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2016-08-25 12:46:55
version version: 414
version ubuntu: 20160825
version device: 20160606-ab415b2
version custom: 20160805-985-38-15

Product: BQ E4.5
Preconditions: have 2 g-accounts to create and share calendars

Steps to reproduce:

DESKTOP
1º Open account 1/calendars and share it with account 2 giving no permissions to make changes
2º Create an event and invite account 2

PHONE
1º Add account 2 to system settings/accounts and switch the calendar toggle to start syncing
2º Open calendar app and check the event shared appear
3º Check that it is possible dragging the event up and down from week view

Current result: On the phone it is possible to drag events of a read-only calendar. Changes only take effect in phone's calendar app.
Expected result: Drag events from a read-only calendar shouldn't be possible

[Renato Araujo Oliveira Filho (renatofilho)]

The event still writable even google interface. (If you open google web interface, you still be able to edit the event).

Right now the sync does not import any information saying if the event is a read-only instance. Without that we handle this event as a normal event.