Review Request 122470: Optimize DataSource

[Kai Uwe Broulik]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/122470/
-----------------------------------------------------------

(Updated Feb. 16, 2015, 1:57 p.m.)


Status
------

This change has been marked as submitted.


Review request for Plasma.


Repository: plasma-framework


Description
-------

This optimizes the DataSource Item.

- Use QQmlParserStatus to provide event compression for the setupData() method so it is only called once all the bindings have been setup, it used to be called repeatedly a lot
- Split setting up the binding outside of setupData, so connections like "connectedSources: sources" work with this new approach (that consumer thing looks like it leaks)
- Re-introduce interval alignment, this allows the clock to use a 60s interval for polling and align to the minute, need to use int since we cannot pass an enum defined in a different class
- Cache sources() and emit change signal only when it has actually changed


Diffs
-----

  src/declarativeimports/core/datasource.h 3aaa2bb 
  src/declarativeimports/core/datasource.cpp 759e5f4 

Diff: https://git.reviewboard.kde.org/r/122470/diff/


Testing
-------

Battery monitor, which does crazy things to the data source works, media controller works, and the clock is able to align to the minute. Could potentially speed up applet initialization a little.


Thanks,

Kai Uwe Broulik

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20150216/60c3c29e/attachment.html>