Hi,

I'm trying to add Custom Filters to my extension, but I run into
problems. I want the Filters to be only available for Inbox/mail and
thought I could use the isValidForType function for that.

nsMsgFilterCore.idl, but I only get the value 0 for both filters on a
mail folder as for filters on a news account.

I also notice that when I go to the Message Filters definition that the
function isValidForType is called twice. I don't understand why this is
happening.

isValidForType has scope as its second parameter, but I cannot find any
documentation on that either...

Can someone please help me with the problems mentioned above me in
adding custom filters to my extension?

Onno

Op 28-6-2012 14:50 schreef Onno Ekker het volgende:

I found the scope is defined in nsMsgSearchCore.idl and it looks like
this can be used too to determine if it's a news filter.

I still would like to know why type is always zero and why
isValidForType is called twice.

Onno

On 6/28/2012 10:46 AM, Onno Ekker wrote:

The custom filter code was added to the core Thunderbird by me many
years ago, and I am probably its biggest user in my FiltaQuilla extension.

But I don't really know the answer to your questions. I spent a couple
of minutes searching through the raw code using
http://mxr.mozilla.org/comm-aurora/, but that did not provide any
obvious answers to your questions. I doubt if anyone can answer your
questions short of instrumenting and debugging in the core code.

I can tell you that type comes from a global set in the filter editor.

rkent

On 7/2/2012 16:30, Kent James wrote:

Hi Kent,

Thanks for your answer. I think the isValidForType function being called
twice might have been my mistake. I don't see it anymore in the latest
version of my extension.

When toying around some more I found out that type is set depending on
when the filters are applied. I haven't found any real logic in the
returned values yet though :-)

Onno