Bug 29998 - Connecting to signal Tp::TextChannel::chatStateChanged needs typedef if not done in Tp namespace
Summary: Connecting to signal Tp::TextChannel::chatStateChanged needs typedef if not d...
Status: RESOLVED FIXED
Alias: None
Product: Telepathy
Classification: Unclassified
Component: tp-qt (show other bugs)
Version: git master
Hardware: Other All
: medium normal
Assignee: Andre Moreira Magalhaes
QA Contact: Telepathy bugs list
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Keywords:
Depends on:
Blocks:
 
Reported: 2010-09-03 08:15 UTC by Lutz Schoenemann
Modified: 2010-11-16 07:02 UTC (History)
0 users

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Attachments
patch to the text-channel.h file (838 bytes, patch)
2010-09-03 08:15 UTC, Lutz Schoenemann 		Details | Splinter Review
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Description Lutz Schoenemann 2010-09-03 08:15:00 UTC 
Created attachment 38405 [details] [review]
patch to the text-channel.h file

I have a class in my own namespace and wanted to connect the signal Tp::TextChannel::chatStateChanged(const Tp::ContactPtr &, ChannelChatState) to a slot of this class 
MyNamespace::MyClass::onChatStateChanged(const Tp::ContactPtr &, Tp::ChannelChatState).

I have tried it with 3 different connects:
1. connect( channel, SIGNAL(chatStateChanged(Tp::ContactPtr, ChannelChatState)), SLOT(onChatStateChanged(Tp::ContactPtr, Tp::ChannelChatState)) );
2. connect( channel, SIGNAL(chatStateChanged(Tp::ContactPtr, Tp::ChannelChatState)), SLOT(onChatStateChanged(Tp::ContactPtr, Tp::ChannelChatState)) );
3. connect( channel, SIGNAL(chatStateChanged(Tp::ContactPtr, ChannelChatState)), SLOT(onChatStateChanged(Tp::ContactPtr, ChannelChatState)) );

the first wasn't possible because the meta-object system complains about not compatible types (ChannelChatState != Tp::ChannelChatState)
the second wasn't possible because the meta-object system wasn't able to find that signal
the third wasn't possible because the meta-object system wasn't able to find the slot

Finally I was able to connect the signal to the slot by using this typedef:
typedef Tp::ChannelChatState ChannelChatState
and the 3rd version of the connects
3. connect( channel, SIGNAL(chatStateChanged(Tp::ContactPtr, ChannelChatState)), SLOT(onChatStateChanged(Tp::ContactPtr, ChannelChatState)) );


It would be a lot easier to change the header by adding the namespace Tp:: in front of ChannelChatState type
Comment 1 Olli Salli 2010-11-05 01:06:35 UTC 
Will be fixed in 0.5.0.
Comment 2 Olli Salli 2010-11-16 07:02:38 UTC 
Fix merged to master. Will be in 0.5.0.

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