Review Request 125655: Xembed SNI Proxy

[David Edmundson]

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https://git.reviewboard.kde.org/r/125655/
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Review request for Plasma.


Repository: plasma-workspace


Description
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The goal of this project is to make xembed system trays available in Plasma.

This is to allow legacy apps (xchat, pidgin, tuxguitar) etc. system trays[1] available in Plasma which only supports StatusNotifierItem [2].

Ideally we also want this to work in an xwayland session, making X system tray icons available even when plasmashell only has a wayland connection.

How it works (in theory)

* We register a window as a system tray container
* We render embeded windows composited offscreen
* We render contents into an image and send this over DBus via the SNI protocol
* XDamage events trigger a repaint
* Activate and context menu events are replyed via X send event into the embedded container as left and right clicks


Code is a mix of hacks and bodges bashing client apps into place, and I happily acknowledge it looks pretty bad. Unfotunately most of it seems to be needed, but I'd love to be proved wrong on most of it.

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CMakeLists changes are obviously currently wrong, I can strip half of find_packages and I need an add_subdirectory in the root file, but it's easier for me to sync with the separate repo mirror this way till we're close to merging. I expect this to take quite some revisions.


Diffs
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  xembedsniproxy/CMakeLists.txt PRE-CREATION 
  xembedsniproxy/Readme.md PRE-CREATION 
  xembedsniproxy/fdoselectionmanager.h PRE-CREATION 
  xembedsniproxy/fdoselectionmanager.cpp PRE-CREATION 
  xembedsniproxy/main.cpp PRE-CREATION 
  xembedsniproxy/org.kde.StatusNotifierItem.xml PRE-CREATION 
  xembedsniproxy/org.kde.StatusNotifierWatcher.xml PRE-CREATION 
  xembedsniproxy/snidbus.h PRE-CREATION 
  xembedsniproxy/snidbus.cpp PRE-CREATION 
  xembedsniproxy/sniproxy.h PRE-CREATION 
  xembedsniproxy/sniproxy.cpp PRE-CREATION 
  xembedsniproxy/xcbutils.h PRE-CREATION 
  xembedsniproxy/xembedsniproxy.desktop PRE-CREATION 

Diff: https://git.reviewboard.kde.org/r/125655/diff/


Testing
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Thanks,

David Edmundson

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