Pure Wayland client side decoration

Desktop
1

I am currently building a pure Wayland Application (my target platform is Ubuntu 24), Mutter does not seem to support SSD: server side decoration . I am trying to use libdecor but for some reason the application exits. My code looks like this:

wl_surface_commit(mystate.surface);  //must commit everything before the loop

struct wl_callback *cb = wl_surface_frame(mystate.surface);
wl_callback_add_listener(cb, &callbackoutputlistener, &mystate);

auto context = libdecor_new(display, &libdecor_iface);
mystate.decorframe = libdecor_decorate(context, mystate.surface,&libdecor_frame_iface, &mystate);
libdecor_frame_set_app_id(mystate.decorframe, "libdecor-demo");
libdecor_frame_set_title(mystate.decorframe, "libdecor demo");
libdecor_frame_map(mystate.decorframe);
libdecor_frame_set_min_content_size(mystate.decorframe, 1000, 1000);

//then the loop
while(…){}

If I dont use libdecom, then everything works fine

2

Yes, mutter does not support server side decorations for Wayland clients.

3

My code is (stripped it down to only have wayland related stuff) is available here:
https://bitbucket.org/asif_bahrainwala/waylandclient/src

when I enable #define USELIBDECOR (in main.h) , I get a memory leak (address sanitizer says so) , when I comment it out, libdecor is not in use and everything works fine

I am unable to debug this. I believe that there must be an event pending.

The libdecor library I got from: libdecor / libdecor · GitLab

4

but then again, even the code at Gtk – 4.0: Getting Started with GTK shows memory leaks (on valgrind)

5

You should read the developer documentation for Valgrind before using it with GLib and GTK based application code.

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