libmalcontent: Add enum types to fix introspection of MctManagerError

Without a GType for the error enum, g-ir-scanner fails to properly
associate it with the error quark function, and (for example) error code
matching in JS doesn’t work.

This adds the enum types in a new public header file.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

libmalcontent/malcontent.h

@@ -23,5 +23,6 @@
 #pragma once
 
 #include <libmalcontent/app-filter.h>
+#include <libmalcontent/enums.h>
 #include <libmalcontent/manager.h>
 #include <libmalcontent/session-limits.h>

libmalcontent/meson.build

@@ -28,8 +28,14 @@ libmalcontent_private_deps = [
 # FIXME: Would be good to use subdir here: https://github.com/mesonbuild/meson/issues/2969
 libmalcontent_include_subdir = join_paths(libmalcontent_api_name, 'libmalcontent')
 
+enums = gnome.mkenums_simple('enums',
+  sources: libmalcontent_headers,
+  install_header: true,
+  install_dir: join_paths(includedir, libmalcontent_include_subdir),
+)
+
 libmalcontent = library(libmalcontent_api_name,
-  libmalcontent_sources + libmalcontent_headers + libmalcontent_private_headers,
+  libmalcontent_sources + libmalcontent_headers + libmalcontent_private_headers + enums,
   dependencies: libmalcontent_public_deps + libmalcontent_private_deps,
   include_directories: root_inc,
   install: true,
@@ -39,6 +45,7 @@ libmalcontent = library(libmalcontent_api_name,
 libmalcontent_dep = declare_dependency(
   link_with: libmalcontent,
   include_directories: root_inc,
+  sources: libmalcontent_headers + [enums[1]],
 )
 
 # Public library bits.
@@ -57,7 +64,7 @@ pkgconfig.generate(libmalcontent,
 )
 
 libmalcontent_gir = gnome.generate_gir(libmalcontent,
-  sources: libmalcontent_sources + libmalcontent_headers + libmalcontent_private_headers,
+  sources: libmalcontent_sources + libmalcontent_headers + libmalcontent_private_headers + enums,
   nsversion: libmalcontent_api_version,
   namespace: 'Malcontent',
   symbol_prefix: 'mct_',

meson.build

@@ -21,6 +21,7 @@ bindir = join_paths(prefix, get_option('bindir'))
 datadir = join_paths(prefix, get_option('datadir'))
 libdir = join_paths(prefix, get_option('libdir'))
 libexecdir = join_paths(prefix, get_option('libexecdir'))
+includedir = join_paths(prefix, get_option('includedir'))
 
 # FIXME: This isn’t exposed in accountsservice.pc
 # See https://gitlab.freedesktop.org/accountsservice/accountsservice/merge_requests/16