Mailinglist Archive: yast-devel (168 mails)

[Ladislav Slezak <lslezak@xxxxxxx>]

Hi all,

I have added these new functions into PackageCallbacks.ycp (yast2-2.16.52):

RegisterEmptyProgressCallbacks() - registers empty callbacks
RestorePreviousProgressCallbacks() - restores the previous registered callbacks

(Pkg-bindings have a stack of registered functions for each callback, 
unregistering a callback means removing the function from the top of the stack.)


If you need to temporarily turn off the callbacks then use the functions in a 
wrapper to ensure that the restoring function is always called:

//disable callbacks
PackageCallbacks::RegisterEmptyProgressCallbacks();

// Start the requested operation here
DoActionWithoutCallbacks();

// restore the previous callbacks
PackageCallbacks::RestorePreviousProgressCallbacks();



RegisterEmptyProgressCallbacks() sets empty callbacks for all progress 
callbacks, if you need to disable just a particular type of callback then use

PackageCallbacks::SetDummy*Callbacks() and PackageCallbacks::Restore*Callbacks()
functions.


The new functionality is used to fix bug #377919, but it might be useful in 
other modules/scripts.


--

Best Regards

Ladislav Slezák
Yast Developer
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