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Bug 711360 - Signals in objects do not support GSignalAccumulator
Signals in objects do not support GSignalAccumulator
Status: RESOLVED DUPLICATE of bug 735243
Product: vala
Classification: Core
Component: Code Generator: GSignal
unspecified
Other Linux
: Normal enhancement
: ---
Assigned To: Vala maintainers
Vala maintainers
Depends on:
Blocks:
 
 
Reported: 2013-11-03 21:47 UTC by Richard Wiedenhöft
Modified: 2017-03-08 14:08 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Richard Wiedenhöft 2013-11-03 21:47:18 UTC 
It is not possible to collect the return values of all functions connected to a signal right now. GLib provides a way to do this (https://developer.gnome.org/gobject/stable/gobject-Signals.html#GSignalAccumulator), but vala does not seem to support it yet.

Flo suggested in IRC, that it could be implemented using an additional attribute for signals.
Comment 1 Luca Bruno 2013-11-03 22:04:36 UTC 
It's not trivial. However you can simulate that by simply passing a shared object with the value you want to be acculated to the signal emission.
Comment 2 Luca Bruno 2013-11-03 22:05:42 UTC 

*** This bug has been marked as a duplicate of bug 635665 ***
Comment 3 Rico Tzschichholz 2017-03-08 14:08:10 UTC 

*** This bug has been marked as a duplicate of bug 735243 ***