Review Request 126291: initial implementation of a platform plugin for OS X (WIP)

[Martin Gräßlin]

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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/126291/#review92378
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Thanks for contributing the code, I'm very happy to see this happening! Sorry, that I cannot provide a good review as I'm not really into the OSX API, thus my review here might look a little bit nitpicky.

General comment: maybe rename the directory from "osx" to "cocoa"? After all it's more about the windowing system than the operating system.


src/platforms/osx/kwindowsystem_macobjc.mm (line 89)
<https://git.reviewboard.kde.org/r/126291/#comment62996>

    Why is the define needed? Doesn't it make more sense to just not build the OSX backend if COCOA is disabled?



src/platforms/osx/kwindowsystem_macobjc.mm (lines 111 - 113)
<https://git.reviewboard.kde.org/r/126291/#comment62997>

    please no commented code



src/platforms/osx/kwindowsystem_macobjc.mm (line 175)
<https://git.reviewboard.kde.org/r/126291/#comment62998>

    Please use categorized logging. I suggest adding a new category for the OSX backend.



src/platforms/osx/kwindowsystem_macobjc.mm (lines 302 - 303)
<https://git.reviewboard.kde.org/r/126291/#comment62999>

    then please remove the code



src/platforms/osx/kwindowsystem_macobjc.mm (lines 331 - 342)
<https://git.reviewboard.kde.org/r/126291/#comment63000>

    why support setting the current desktop if the number of desktops is hardcoded to 1?



src/platforms/osx/kwindowsystem_macobjc.mm (line 446)
<https://git.reviewboard.kde.org/r/126291/#comment63002>

    what's experimental window tracking?
    
    And that ifdef if enabled would not compile



src/platforms/osx/kwindowsystem_macobjc.mm (line 447)
<https://git.reviewboard.kde.org/r/126291/#comment63001>

    QObject()


- Martin Gräßlin


On Feb. 14, 2016, 5:44 p.m., René J.V. Bertin wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/126291/
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> 
> (Updated Feb. 14, 2016, 5:44 p.m.)
> 
> 
> Review request for KDE Software on Mac OS X and KDE Frameworks.
> 
> 
> Repository: kwindowsystem
> 
> 
> Description
> -------
> 
> KWindowSystem has been lacking a platform plugin for OS X. This RR presents a "backport" of the modified KDE4 KWindowSystem implementation that has been used in the MacPorts kdelibs4 port for the last 2 or 3 (or more) years.
> 
> I have made some initial steps to remove deprecated Carbon API calls, but this is clearly a work in progress.
> 
> Open questions include
> - is there any justification to run an event handler (or Cocoa observer) to keep track of running applications, possibly even listing all their open windows?
> - is there any use for the Qt event listener framework (cf. the NETEventFilter in the X11 plugin)? I haven't yet had time to try to figure out what this "could be good for", and am very open to suggestions in this departments.
> - one application for such an event filter would be a listener that catches the opening and closing of all windows by the running process, and keeps track of their `WId`s. A new method could then be added (to `KWindowInfo`?) to distinguish `WId`s created by the running application from "foreign" ones (useful also on Wayland and MS Windows).
> 
> `KWindowSystem::setMainWindow` should become a front for payload provided by the plugins. I'll leave that to the regular/official maintainer(s) of this framework.
> 
> This code could probably do with *lots* of comments; I'll try to add them as questions about this or that bit of code arise.
> 
> 
> Diffs
> -----
> 
>   src/kwindowsystem.cpp 407a67d 
>   src/platforms/osx/CMakeLists.txt 4fc3347 
>   src/platforms/osx/cocoa.json PRE-CREATION 
>   src/platforms/osx/kkeyserver.cpp 3ddb921 
>   src/platforms/osx/kwindowinfo.cpp e8555bb 
>   src/platforms/osx/kwindowinfo.mm PRE-CREATION 
>   src/platforms/osx/kwindowinfo_mac_p.h c8f307e 
>   src/platforms/osx/kwindowinfo_p_cocoa.h PRE-CREATION 
>   src/platforms/osx/kwindowsystem.cpp 1758829 
>   src/platforms/osx/kwindowsystem_mac_p.h PRE-CREATION 
>   src/platforms/osx/kwindowsystem_macobjc.mm PRE-CREATION 
>   src/platforms/osx/kwindowsystem_p_cocoa.h PRE-CREATION 
>   src/platforms/osx/plugin.h PRE-CREATION 
>   src/platforms/osx/plugin.cpp PRE-CREATION 
> 
> Diff: https://git.reviewboard.kde.org/r/126291/diff/
> 
> 
> Testing
> -------
> 
> On OS X 10.9.5 with Qt 5.5.1 and frameworks 5.16.0 .
> 
> 
> Thanks,
> 
> René J.V. Bertin
> 
>

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