Make upower optional

This commit is just an improved version of the pull request by Wolfgang Ulbrich
at https://github.com/mate-desktop/mate-session-manager/pull/38
making it working with both upower and systemd, and improving configure part

4 files changed, 63 insertions, 19 deletions

diff --git a/configure.ac b/configure.ac
index 88a669b..b706409 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,7 +70,6 @@ PKG_CHECK_MODULES(MATE_SESSION,
         gio-2.0 >= $GIO_REQUIRED
         gtk+-$GTK_API_VERSION >= $GTK_REQUIRED
         dbus-glib-1 >= $DBUS_GLIB_REQUIRED
-        upower-glib >= $UPOWER_REQUIRED
 )
 
 PKG_CHECK_MODULES(SESSION_PROPERTIES,
@@ -128,6 +127,24 @@ AM_CONDITIONAL(HAVE_SYSTEMD, test "x$use_systemd" = "xyes")
 AC_SUBST(HAVE_SYSTEMD)
 
 dnl ====================================================================
+dnl UPOWER
+dnl ====================================================================
+
+AC_ARG_ENABLE(upower,
+              AS_HELP_STRING([--enable-upower],
+              [Use upower to suspend/hibernate]),
+              enable_upower=$enableval,
+              enable_upower=yes)
+if test "x$enable_upower" = "xyes"; then
+    PKG_CHECK_MODULES(UPOWER, upower-glib >= $UPOWER_REQUIRED, has_upower=yes, has_upower=no)
+    AC_DEFINE(HAVE_UPOWER, 1, [upower support])
+    AC_SUBST(UPOWER_CFLAGS)
+    AC_SUBST(UPOWER_LIBS)
+fi
+AM_CONDITIONAL(HAVE_UPOWER, test "x$enable_upower" = "xyes")
+AC_SUBST(HAVE_UPOWER)
+
+dnl ====================================================================
 dnl X development libraries check
 dnl ====================================================================
 
@@ -385,6 +402,7 @@ echo "
         GTK+ version:             ${with_gtk}
         Default WM:               ${with_default_wm}
         Systemd support:          ${use_systemd}
+        Upower support:           ${enable_upower}
         IPv6 support:             ${have_full_ipv6}
         Backtrace support:        ${have_backtrace}
         XRender support:          ${have_xrender}
diff --git a/mate-session/Makefile.am b/mate-session/Makefile.am
index 2c73d63..9485fec 100644
--- a/mate-session/Makefile.am
+++ b/mate-session/Makefile.am
@@ -7,6 +7,7 @@ noinst_PROGRAMS = 		\
 AM_CPPFLAGS =					\
 	$(MATE_SESSION_CFLAGS)		\
 	$(SYSTEMD_CFLAGS)			\
+	$(UPOWER_CFLAGS)			\
 	$(DISABLE_DEPRECATED_CFLAGS)
 
 AM_CFLAGS = $(WARN_CFLAGS)
@@ -78,6 +79,7 @@ mate_session_LDADD =				\
 	$(XEXT_LIBS)				\
 	$(MATE_SESSION_LIBS)			\
 	$(SYSTEMD_LIBS)				\
+	$(UPOWER_LIBS)				\
 	$(EXECINFO_LIBS)
 
 libgsmutil_la_SOURCES =				\
diff --git a/mate-session/gsm-logout-dialog.c b/mate-session/gsm-logout-dialog.c
index 1a79875..323f123 100644
--- a/mate-session/gsm-logout-dialog.c
+++ b/mate-session/gsm-logout-dialog.c
@@ -27,7 +27,9 @@
 #include <glib/gi18n.h>
 #include <gtk/gtk.h>
 
+#ifdef HAVE_UPOWER
 #include <upower.h>
+#endif
 
 #include "gsm-logout-dialog.h"
 #ifdef HAVE_SYSTEMD
@@ -52,8 +54,9 @@ typedef enum {
 struct _GsmLogoutDialogPrivate
 {
         GsmDialogLogoutType  type;
-
+#ifdef HAVE_UPOWER
         UpClient            *up_client;
+#endif
 #ifdef HAVE_SYSTEMD
         GsmSystemd          *systemd;
 #endif
@@ -147,9 +150,9 @@ gsm_logout_dialog_init (GsmLogoutDialog *logout_dialog)
         gtk_window_set_skip_taskbar_hint (GTK_WINDOW (logout_dialog), TRUE);
         gtk_window_set_keep_above (GTK_WINDOW (logout_dialog), TRUE);
         gtk_window_stick (GTK_WINDOW (logout_dialog));
-
+#ifdef HAVE_UPOWER
         logout_dialog->priv->up_client = up_client_new ();
-
+#endif
 #ifdef HAVE_SYSTEMD
         if (LOGIND_RUNNING())
             logout_dialog->priv->systemd = gsm_get_systemd ();
@@ -176,12 +179,12 @@ gsm_logout_dialog_destroy (GsmLogoutDialog *logout_dialog,
                 g_source_remove (logout_dialog->priv->timeout_id);
                 logout_dialog->priv->timeout_id = 0;
         }
-
+#ifdef HAVE_UPOWER
         if (logout_dialog->priv->up_client) {
                 g_object_unref (logout_dialog->priv->up_client);
                 logout_dialog->priv->up_client = NULL;
         }
-
+#endif
 #ifdef HAVE_SYSTEMD
         if (logout_dialog->priv->systemd) {
                 g_object_unref (logout_dialog->priv->systemd);
@@ -201,13 +204,17 @@ static gboolean
 gsm_logout_supports_system_suspend (GsmLogoutDialog *logout_dialog)
 {
         gboolean ret;
+        ret = FALSE;
 #ifdef HAVE_SYSTEMD
         if (LOGIND_RUNNING())
             ret = gsm_systemd_can_suspend (logout_dialog->priv->systemd);
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         else
 #endif
+#ifdef HAVE_UPOWER
         ret = up_client_get_can_suspend (logout_dialog->priv->up_client);
-
+#endif
         return ret;
 }
 
@@ -215,13 +222,17 @@ static gboolean
 gsm_logout_supports_system_hibernate (GsmLogoutDialog *logout_dialog)
 {
         gboolean ret;
+        ret = FALSE;
 #ifdef HAVE_SYSTEMD
         if (LOGIND_RUNNING())
             ret = gsm_systemd_can_hibernate (logout_dialog->priv->systemd);
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         else
 #endif
+#ifdef HAVE_UPOWER
         ret = up_client_get_can_hibernate (logout_dialog->priv->up_client);
-
+#endif
         return ret;
 }
 
diff --git a/mate-session/gsm-manager.c b/mate-session/gsm-manager.c
index cbe680b..eda565b 100644
--- a/mate-session/gsm-manager.c
+++ b/mate-session/gsm-manager.c
@@ -38,7 +38,9 @@
 #include <dbus/dbus-glib.h>
 #include <dbus/dbus-glib-lowlevel.h>
 
+#ifdef HAVE_UPOWER
 #include <upower.h>
+#endif
 
 #include <gtk/gtk.h> /* for logout dialog */
 #include <gio/gio.h> /* for gsettings */
@@ -144,9 +146,10 @@ struct GsmManagerPrivate
 
         DBusGProxy             *bus_proxy;
         DBusGConnection        *connection;
-
+#ifdef HAVE_UPOWER
         /* Interface with other parts of the system */
         UpClient               *up_client;
+#endif
 };
 
 enum {
@@ -1142,10 +1145,11 @@ manager_perhaps_lock (GsmManager *manager)
 static void
 manager_attempt_hibernate (GsmManager *manager)
 {
+#ifdef HAVE_UPOWER
         gboolean  can_hibernate;
         GError   *error;
         gboolean  ret;
-
+#endif
 #ifdef HAVE_SYSTEMD
         if (LOGIND_RUNNING()) {
 
@@ -1158,8 +1162,11 @@ manager_attempt_hibernate (GsmManager *manager)
 
                 gsm_systemd_attempt_hibernate (systemd);
         }
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         else {
 #endif
+#ifdef HAVE_UPOWER
         can_hibernate = up_client_get_can_hibernate (manager->priv->up_client);
         if (can_hibernate) {
 
@@ -1174,7 +1181,8 @@ manager_attempt_hibernate (GsmManager *manager)
                         g_error_free (error);
                 }
         }
-#ifdef HAVE_SYSTEMD
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         }
 #endif
 }
@@ -1182,10 +1190,11 @@ manager_attempt_hibernate (GsmManager *manager)
 static void
 manager_attempt_suspend (GsmManager *manager)
 {
+#ifdef HAVE_UPOWER
         gboolean  can_suspend;
         GError   *error;
         gboolean  ret;
-
+#endif
 #ifdef HAVE_SYSTEMD
         if (LOGIND_RUNNING()) {
 
@@ -1198,8 +1207,11 @@ manager_attempt_suspend (GsmManager *manager)
 
                 gsm_systemd_attempt_suspend (systemd);
         }
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         else {
 #endif
+#ifdef HAVE_UPOWER
         can_suspend = up_client_get_can_suspend (manager->priv->up_client);
         if (can_suspend) {
 
@@ -1214,7 +1226,8 @@ manager_attempt_suspend (GsmManager *manager)
                         g_error_free (error);
                 }
         }
-#ifdef HAVE_SYSTEMD
+#endif
+#if defined(HAVE_SYSTEMD) && defined(HAVE_UPOWER)
         }
 #endif
 }
@@ -2387,12 +2400,12 @@ gsm_manager_dispose (GObject *object)
                 g_object_unref (manager->priv->settings_screensaver);
                 manager->priv->settings_screensaver = NULL;
         }
-
+#ifdef HAVE_UPOWER
         if (manager->priv->up_client != NULL) {
                 g_object_unref (manager->priv->up_client);
                 manager->priv->up_client = NULL;
         }
-
+#endif
         G_OBJECT_CLASS (gsm_manager_parent_class)->dispose (object);
 }
 
@@ -2599,9 +2612,9 @@ gsm_manager_init (GsmManager *manager)
                           "status-changed",
                           G_CALLBACK (on_presence_status_changed),
                           manager);
-
+#ifdef HAVE_UPOWER
         manager->priv->up_client = up_client_new ();
-
+#endif
         g_signal_connect (manager->priv->settings_session,
                           "changed",
                           G_CALLBACK (on_gsettings_key_changed),
@@ -3270,12 +3283,12 @@ gsm_manager_can_shutdown (GsmManager *manager,
 #endif
         gboolean can_suspend;
         gboolean can_hibernate;
-
+#ifdef HAVE_UPOWER
         g_object_get (manager->priv->up_client,
                       "can-suspend", &can_suspend,
                       "can-hibernate", &can_hibernate,
                       NULL);
-
+#endif
         g_debug ("GsmManager: CanShutdown called");
 
         g_return_val_if_fail (GSM_IS_MANAGER (manager), FALSE);