477096 - Extension (C++) fails to get instance of nsIXULRuntime

Status: RESOLVED INVALID

(Toolkit :: Startup and Profile System, defect)

Description

[Andris Pavenis]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.5) Gecko/2008121622 Fedora/3.0.5-1.fc10 Firefox/3.0.5
Build Identifier: Thunderbird-3.1a1pre and Firefox-3.2a1pre >= 2009/02/03

I'm getting error message from the following code:

nsCOMPtr<nsIXULRuntime> runtime = do_GetService("@mozilla.org/xre/app-info;1", &rv);
if (NS_FAILED(rv))
{
   logMessage("mozvoikko: Failed to get nsIXULRuntime instance"
        " (service @mozilla.org/xre/app-info;1)");
   return rv;
}

Extension works with 
- all Firefox 3.0.X, 3.1b2, 3.1b3pre
- Firefox 3.1a1pre before 2009/02/03 but not after (tested with i686 and x86_64 Linux)
- Thunderbird-3.0b1, 3.0b2pre
- Thunderbird 3.1a1pre before 2009/02/03 but not after (tested i686 Linux)
- Seamonkey 2.0a3pre (perhaps before 2009/02/03, I have not tested later)




Reproducible: Always

Steps to Reproduce:
1.Install nightly version (Thunderbird or Firefox) newer than 2009/02/03 on Linux system

2.Get and install extension from http://ap1.pp.fi/mozilla/mozvoikko/0.9.6/ (there are Linux-ix86_gcc3 and Linux-x86_64_gcc3 versions only).

3a. Look whether Finish language is available in list of spellcheck directories
3b. Look whether there is error messages about getting nsIXULRuntime instance in error console (Tools -> Error console)
 
Actual Results:  
With broken versions I'm getting following message in error console.

mozvoikko: Failed to get nsIXULRuntime instance (service @mozilla.org/xre/app-info;1)

Failed to get directories where Voikko libraries and data are installed

Additionally Finnish language spell-check is not available

Expected Results:  
One can test the same extensions with for example Firefox-3.0.6 or Thunderbird-3.1b1: for both I'm not getting similar error message and Finnish language spell-check works. The final message in error console from mozvoikko is:

libvoikko.so.1 is successfully initialized.

after messages that several other shared libraries are loaded.


URLS due to extension license (GPL):
Homepage: http://ap1.pp.fi/mozilla/mozilla+voikko.html contains sources of additional components and older extension version, but it's in Finnish (sorry).

Current extension sources: http://voikko.svn.sourceforge.net/viewvc/voikko/trunk/mozvoikko/ (from these the provided extensions are built)

Comment 1

[Benjamin Smedberg]

http://hg.mozilla.org/mozilla-central/rev/ad08e07cb8e6

The IID of nsIXULRuntime changed (on trunk only) for bug 475811. You are presumably building against an SDK for 3.1 which doesn't have this change. This is by design.