291610 - Alarms don't work (trunk)

Status: RESOLVED FIXED

(Calendar :: Internal Components, defect)

Description

[Michiel van Leeuwen (email: mvl+moz@)]

There is nothing that checks the calendars for alarms. (calIItemBase.alarmTime
isn't used anywere)

Three questions come to mind:
- Where to store alarm information, and how to deal with shared calendars? (You
don't want alarms for other persons calendars)
- How to find out which event is the next to fire an alarm? (Does the frontend
want to get all events just to check for that?)
- Do we want options like per-event setting of what the alarm action is? (Maybe
just a pref to select between email and popup)

Comment 1

[Mike Shaver (:shaver emeritus)]

What does Sunbird 0.2 do with VALARMs in, say, random webcal calendars to which
the user does not have write permission?  That might be a useful guide to how to
handle some parts of the shared calendar issue.

The whole "VALARM in multi-user VCALENDAR" thing is a mess, from everything I
can tell, so I'm not really sure how things like CalDAV want it to work.

Comment 2

[Michiel van Leeuwen (email: mvl+moz@)]

(In reply to comment #1)
> What does Sunbird 0.2 do with VALARMs in, say, random webcal calendars to which
> the user does not have write permission?

I'm afraid it handles that poorly. All the data about alarm is stored in the
calendar file. If the file can't be published, the data would be lost. See bug
265516. bug 265525 ask for a fix. Maybe this part of the discussion should be
moved there, and use this for the discussion on how do do alarm in the
calICalendar world. 

Comment 3

[Dan Mosedale (:dmosedale, :dmose)]

It would be interesting to know what iCal does.

Comment 4

[Stuart Parmenter]

I'm going to mark this fixed and file seperate bugs on the remaining alarm issues.