On Monday 09 February 2009 22:52:58 Sebastian Kügler wrote: > On Monday 09 February 2009 21:28:17 David Baron wrote: > > > On Monday 09 February 2009 08:37:48 David Baron wrote: > > > > Great. > > > > > > > > I downloaded and compiled. > > > > > > > > I still get "no data sources" in the explorer and in some test code > > > > which would simply show the sources() list. > > > > > > You need to actually request sources. For example connect to > > > "EmailCollections" or "ContactCollections". The dataengine will only > > > load the stuff from Akonadi you actually ask for. > > > > OK. > > > > In the explorer, requeted ContactCollections > > This showed by a ContactCollection-6 dir address book > > If I the request ContactCollection-6, I do indeed get all the contacts by > > number. Trying to navigate this (now large) list quickly hangs up the > > explorer. > > > > > Alternatively, add > > > > > > fetchEmailCollections(); > > > fetchContactColletions(); > > > > > > to the constructor of the dataengine. This way it'll load the > > > collections on engine startup. You can then use the collections you get > > > back to retrieve emails and contacts. > > > > Because of a pontentially large amount to date, this approach should not > > be used. > > Yes of course, otherwise I would have added to the dataengine in the first > place... It's completely transparant to the user though (thanks to the > design of dataengines). > > > My applet will want to assemble a list of QAbstractListItems or > > QStringLists something like: > > contact-name phone-number-1 > > contact-name phone-number-2 > > contact-name2 phone-number-1 > > etc. > > > > There may be several collection-# lists and a lot of data. Once loaded > > which takes a bit of time, possibly geometric by number of items!, > > kaddressbook seems to run reasonably (using the akonadi dir resource). > > > > I would load the data in a background thread--question is how long it > > will need to load and be navigated to fill a sorted listwidget. I guess > > I'll just have to try it out and see. > > The loading of data in the dataengine is async. Don't block on it but react > to signals announcing new datasources instead. Look at lionmail.cpp for an > example.
What if the initial get sources always returned something, in this case EmailCollections, ContactCollections which is a handful of items? The caller will always have something to test and can choose which if any to request. _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
