build: Switch to GTK4 and libadwaita

Switch the build system to GTK4 and libadwaita, instead of GTK3
and libhandy.

This commit breaks the build.

.gitlab-ci.yml

@@ -7,7 +7,7 @@ cache:
     - _ccache/
 
 variables:
-  DEBIAN_IMAGE: "registry.freedesktop.org/pwithnall/malcontent/debian-unstable:v2"
+  DEBIAN_IMAGE: "registry.freedesktop.org/pwithnall/malcontent/debian-unstable:v3"
   MESON_TEST_TIMEOUT_MULTIPLIER: 2
   G_MESSAGES_DEBUG: all
   MESON_COMMON_OPTIONS: "--buildtype debug --wrap-mode=nodownload"

.gitlab-ci/debian-unstable.Dockerfile

@@ -5,14 +5,14 @@ RUN apt-get update -qq && apt-get install --no-install-recommends -qq -y \
     git \
     gtk-doc-tools \
     lcov \
+    libadwaita-1-dev \
     libaccountsservice-dev \
     libappstream-dev \
     libflatpak-dev \
     libgirepository1.0-dev \
     libglib2.0-dev \
     libglib-testing-0-dev \
-    libgtk-3-dev \
+    libgtk-4-dev \
-    libhandy-1-dev \
     libpam0g-dev \
     libpolkit-gobject-1-dev \
     libxml2-utils \

libmalcontent-ui/meson.build

@@ -28,8 +28,8 @@ libmalcontent_ui_public_deps = [
   dependency('gio-2.0', version: '>= 2.44'),
   dependency('glib-2.0', version: '>= 2.54.2'),
   dependency('gobject-2.0', version: '>= 2.54'),
-  dependency('gtk+-3.0', version: '>= 3.24'),
+  dependency('gtk4', version: '>= 4.6'),
-  libhandy_dep,
+  libadwaita_dep,
   libmalcontent_dep,
 ]
 libmalcontent_ui_private_deps = [
@@ -87,7 +87,7 @@ if xmllint.found()
     'validate-ui', xmllint,
     args: [
       '--nonet', '--noblanks', '--noout',
-      '--relaxng', join_paths(gtk_prefix, 'share', 'gtk-3.0', 'gtkbuilder.rng'),
+      '--relaxng', join_paths(gtk_prefix, 'share', 'gtk-4.0', 'gtk4builder.rng'),
       files(
         'restrict-applications-dialog.ui',
         'restrict-applications-selector.ui',

malcontent-control/meson.build

@@ -27,9 +27,9 @@ malcontent_control = executable('malcontent-control',
     dependency('gio-2.0', version: '>= 2.44'),
     dependency('glib-2.0', version: '>= 2.54.2'),
     dependency('gobject-2.0', version: '>= 2.54'),
-    dependency('gtk+-3.0'),
+    dependency('gtk4', version: '>= 4.6'),
     dependency('polkit-gobject-1'),
-    libhandy_dep,
+    libadwaita_dep,
     libmalcontent_dep,
     libmalcontent_ui_dep,
   ],
@@ -84,7 +84,7 @@ if xmllint.found()
     'validate-ui', xmllint,
     args: [
       '--nonet', '--noblanks', '--noout',
-      '--relaxng', join_paths(gtk_prefix, 'share', 'gtk-3.0', 'gtkbuilder.rng'),
+      '--relaxng', join_paths(gtk_prefix, 'share', 'gtk-4.0', 'gtk4builder.rng'),
       files(
         'carousel.ui',
         'main.ui',

meson.build

@@ -134,7 +134,12 @@ else
                        'Malcontent-' + libmalcontent_api_version + '.typelib']
 endif
 if get_option('ui').enabled()
-  libhandy_dep = dependency('libhandy-1', version: '>=1.1.0', fallback: ['libhandy', 'libhandy_dep'])
+  libadwaita_dep = dependency(
+    'libadwaita-1',
+    version: '>= 1.1',
+    fallback: ['libadwaita', 'libadwaita_dep'],
+    default_options: ['examples=false', 'introspection=disabled', 'tests=false', 'vapi=false'],
+  )
   subdir('libmalcontent-ui')
 endif
 subdir('malcontent-client')

subprojects/libadwaita.wrap

@@ -0,0 +1,4 @@
+[wrap-git]
+url = https://gitlab.gnome.org/GNOME/libadwaita.git
+revision = 1.1.0
+depth = 1

subprojects/libhandy.wrap

@@ -1,4 +0,0 @@
-[wrap-git]
-directory = libhandy
-url = https://gitlab.gnome.org/GNOME/libhandy.git
-revision = origin/main