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Wang Zichong
2025-12-19 10:28:57 +08:00
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## Note
## XEmbed TrayManager1 Proxy
This project is modified from KDE's xembed-sni-proxy project, extracted from plasma-workspace.
The goal of this project is to make xembed system trays available in DDE Treeland (wayland) session.
##XEmbed SNI Proxy
This is to allow legacy apps (xchat, pidgin, tuxguitar) etc. system trays[1] available in DDE Treeland which only supports StatusNotifierItem [2].
The goal of this project is to make xembed system trays available in Plasma.
> [!NOTE]
> The initial commit was a minimal KF6 dependency version of KDE's `xembed-sni-proxy` project, extracted from `plasma-workspace`.
> Currently this project is a standalone project that provides Xembed tray information on TrayManager1 D-Bus, so `dde-tray-loader` could consume it and provide Xembed tray icons.
> This project will be integrated into `dde-tray-loader` project.
This is to allow legacy apps (xchat, pidgin, tuxguitar) etc. system trays[1] available in Plasma which only supports StatusNotifierItem [2].
## Build instructions
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.
```shell
$ cmake -Bbuild .
$ cmake --build build
```
This project should be portable onto all other DEs that speak SNI.
##How it works (in theory)
* We register a window as a system tray container
* We render embedded 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
There are a few extra hacks in the real code to deal with some toolkits being awkward.
##Build instructions
cmake .
make
sudo make install
After building, run `xembedsniproxy`.
After building, run `xembed-traymanager-proxy`.
[1] http://standards.freedesktop.org/systemtray-spec/systemtray-spec-latest.html
[2] http://www.freedesktop.org/wiki/Specifications/StatusNotifierItem/