Play sound on key press/release

This needs entries in the sound theme for button-{pressed,released}
which the xdg default one doesn't provide.

eek/eek-gtk-keyboard.c

@@ -23,12 +23,10 @@
  * @short_description: a #GtkWidget displaying #EekKeyboard
  */
 
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif  /* HAVE_CONFIG_H */
 
-#ifdef HAVE_LIBCANBERRA
-#include <canberra-gtk.h>
+#ifdef HAVE_GSOUND
+#include <gsound.h>
 #endif
 
 #include <math.h>
@@ -58,6 +56,9 @@ typedef struct _EekGtkKeyboardPrivate
     EekRenderer *renderer;
     EekKeyboard *keyboard;
     EekTheme *theme;
+#ifdef HAVE_GSOUND
+    GSoundContext *sound_ctx;
+#endif
 
     GdkEventSequence *sequence; // unowned reference
 } EekGtkKeyboardPrivate;
@@ -438,7 +439,16 @@ eek_gtk_keyboard_class_init (EekGtkKeyboardClass *klass)
 static void
 eek_gtk_keyboard_init (EekGtkKeyboard *self)
 {
-    /* void */
+#if HAVE_GSOUND
+    EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
+    GError *err = NULL;
+
+    priv->sound_ctx = gsound_context_new(NULL, &err);
+    if (!priv->sound_ctx) {
+        g_warning ("GSound init failed: %s", err->message);
+        g_clear_error (&err);
+    }
+#endif
 }
 
 /**
@@ -567,11 +577,11 @@ on_key_pressed (EekKey      *key,
     render_pressed_key (GTK_WIDGET(self), key);
     gtk_widget_queue_draw (GTK_WIDGET(self));
 
-#if HAVE_LIBCANBERRA
-    ca_gtk_play_for_widget (widget, 0,
-                            CA_PROP_EVENT_ID, "button-pressed",
-                            CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
-                            CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
+#if HAVE_GSOUND
+    g_return_if_fail (GSOUND_IS_CONTEXT (priv->sound_ctx));
+    gsound_context_play_simple(priv->sound_ctx, NULL, NULL,
+                               GSOUND_ATTR_EVENT_ID, "button-pressed",
+                               GSOUND_ATTR_EVENT_DESCRIPTION, "Button pressed",
                                NULL);
 #endif
 }
@@ -589,11 +599,11 @@ on_key_released (EekKey      *key,
     render_released_key (GTK_WIDGET(self), key);
     gtk_widget_queue_draw (GTK_WIDGET(self));
 
-#if HAVE_LIBCANBERRA
-    ca_gtk_play_for_widget (widget, 0,
-                            CA_PROP_EVENT_ID, "button-released",
-                            CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
-                            CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
+#if HAVE_GSOUND
+    g_return_if_fail (GSOUND_IS_CONTEXT (priv->sound_ctx));
+    gsound_context_play_simple(priv->sound_ctx, NULL, NULL,
+                               GSOUND_ATTR_EVENT_ID, "button-released",
+                               GSOUND_ATTR_EVENT_DESCRIPTION, "Button released",
                                NULL);
 #endif
 }

meson.build

@@ -3,12 +3,14 @@ project(
     'c', 'rust',
     version: '1.0.10',
     license: 'GPLv3',
-    meson_version: '>=0.43.0',
+    meson_version: '>=0.49.0',
     default_options: [ 'warning_level=1', 'buildtype=debugoptimized', 'c_std=gnu11' ],
 )
 
 i18n = import('i18n')
 
+conf_data = configuration_data()
+
 if get_option('buildtype').startswith('debug')
     add_project_arguments('-DDEBUG=1', language : 'c')
 endif
@@ -26,6 +28,22 @@ else
 endif
 dbusdir = join_paths(depdatadir, 'dbus-1/interfaces')
 
+gsound_dep = dependency('gsound', required : false)
+if gsound_dep.found()
+  conf_data.set10('HAVE_GSOUND', true)
+endif
+
+summary = [
+        '',
+        '------------------',
+        'squeekboard @0@'.format(meson.project_version()),
+        '',
+        '   gsound: @0@'.format(conf_data.get('HAVE_GSOUND', false)),
+        '------------------',
+        ''
+]
+message('\n'.join(summary))
+
 subdir('data')
 subdir('protocols')
 subdir('eek')

src/config.h.in

@@ -0,0 +1,6 @@
+/*
+ * Autogenerated by the Meson build system.
+ * Do not edit, your changes will be lost.
+ */
+
+#mesondefine HAVE_GSOUND

src/meson.build

@@ -4,7 +4,10 @@ dbus_src = gnome.gdbus_codegen(
     join_paths(meson.source_root() / 'data' / 'dbus', 'sm.puri.OSK0.xml')
 )
 
+config_h = configure_file(input: 'config.h.in', output: 'config.h',configuration: conf_data)
+
 sources = [
+  config_h,
   'imservice.c',
   'server-context-service.c',
   'server-main.c',
@@ -60,6 +63,7 @@ deps = [
   cc.find_library('dl'),
   cc.find_library('pthread'),
 #  dependency('libxklavier'), # FIXME remove
+  gsound_dep,
 ]
 
 # Replacement for eekboard-server