[gnome-disk-utility/udisks2-port] Show whether a swap device is running and make it possible to start/stop it

[David Zeuthen <davidz src gnome org>]

commit fc6042cf6b141281ec49f70eecf94ba3302809b3
Author: David Zeuthen <davidz redhat com>
Date:   Wed Mar 30 15:03:06 2011 -0400

    Show whether a swap device is running and make it possible to start/stop it
    
    IOW, treat swap devices just as mountable filesystems.
    
    Signed-off-by: David Zeuthen <davidz redhat com>

 data/ui/palimpsest.ui          |   34 +++++++++++++
 src/palimpsest/gduvolumegrid.c |   13 ++++-
 src/palimpsest/gduwindow.c     |  107 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 151 insertions(+), 3 deletions(-)
---
diff --git a/data/ui/palimpsest.ui b/data/ui/palimpsest.ui
index f60fe5a..d7866c5 100644
--- a/data/ui/palimpsest.ui
+++ b/data/ui/palimpsest.ui
@@ -33,6 +33,18 @@
       </object>
     </child>
     <child>
+      <object class="GtkAction" id="devtab-action-activate-swap">
+        <property name="tooltip" translatable="yes">Activate the swap space</property>
+        <property name="icon_name">gdu-action-mount-symbolic</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAction" id="devtab-action-deactivate-swap">
+        <property name="tooltip" translatable="yes">Deactivate the swap space</property>
+        <property name="icon_name">gdu-action-unmount-symbolic</property>
+      </object>
+    </child>
+    <child>
       <object class="GtkAction" id="devtab-action-lock">
         <property name="tooltip" translatable="yes">Lock the encrypted device</property>
         <property name="icon_name">changes-prevent-symbolic</property>
@@ -799,6 +811,28 @@
                                   </packing>
                                 </child>
                                 <child>
+                                  <object class="GtkToolButton" id="toolbutton7">
+                                    <property name="visible">True</property>
+                                    <property name="can_focus">False</property>
+                                    <property name="related_action">devtab-action-activate-swap</property>
+                                  </object>
+                                  <packing>
+                                    <property name="expand">False</property>
+                                    <property name="homogeneous">True</property>
+                                  </packing>
+                                </child>
+                                <child>
+                                  <object class="GtkToolButton" id="toolbutton8">
+                                    <property name="visible">True</property>
+                                    <property name="can_focus">False</property>
+                                    <property name="related_action">devtab-action-deactivate-swap</property>
+                                  </object>
+                                  <packing>
+                                    <property name="expand">False</property>
+                                    <property name="homogeneous">True</property>
+                                  </packing>
+                                </child>
+                                <child>
                                   <object class="GtkToolButton" id="toolbutton99">
                                     <property name="visible">True</property>
                                     <property name="can_focus">False</property>
diff --git a/src/palimpsest/gduvolumegrid.c b/src/palimpsest/gduvolumegrid.c
index eaba319..8e7b1b5 100644
--- a/src/palimpsest/gduvolumegrid.c
+++ b/src/palimpsest/gduvolumegrid.c
@@ -1948,20 +1948,27 @@ grid_element_set_details (GduVolumeGrid  *grid,
                 const gchar *const *mount_points;
                 mount_points = udisks_filesystem_get_mount_points (filesystem);
                 if (g_strv_length ((gchar **) mount_points) > 0)
-                  {
-                    element->show_mounted = TRUE;
-                  }
+                  element->show_mounted = TRUE;
               }
           }
         else if (g_strcmp0 (usage, "other") == 0 && g_strcmp0 (type, "swap") == 0)
           {
             const gchar *label;
+            UDisksSwapspace *swapspace;
+
             label = udisks_block_device_get_id_label (block);
             type_for_display = udisks_util_get_id_for_display (usage, type, version, FALSE);
             if (strlen (label) == 0)
               label = C_("volume-grid", "Swap");
             s = g_strdup_printf ("%s\n%s %s", label, size_str, type_for_display);
             g_free (type_for_display);
+
+            swapspace = UDISKS_PEEK_SWAPSPACE (element->object);
+            if (swapspace != NULL)
+              {
+                if (udisks_swapspace_get_active (swapspace))
+                  element->show_mounted = TRUE;
+              }
           }
         else
           {
diff --git a/src/palimpsest/gduwindow.c b/src/palimpsest/gduwindow.c
index 2821762..ac73657 100644
--- a/src/palimpsest/gduwindow.c
+++ b/src/palimpsest/gduwindow.c
@@ -99,6 +99,8 @@ static void on_devtab_action_unmount_activated (GtkAction *action, gpointer user
 static void on_devtab_action_eject_activated (GtkAction *action, gpointer user_data);
 static void on_devtab_action_unlock_activated (GtkAction *action, gpointer user_data);
 static void on_devtab_action_lock_activated (GtkAction *action, gpointer user_data);
+static void on_devtab_action_activate_swap_activated (GtkAction *action, gpointer user_data);
+static void on_devtab_action_deactivate_swap_activated (GtkAction *action, gpointer user_data);
 
 static void iscsi_connection_switch_on_notify_active (GObject     *object,
                                                       GParamSpec  *pspec,
@@ -519,6 +521,14 @@ gdu_window_constructed (GObject *object)
                     "activate",
                     G_CALLBACK (on_devtab_action_lock_activated),
                     window);
+  g_signal_connect (gtk_builder_get_object (window->builder, "devtab-action-activate-swap"),
+                    "activate",
+                    G_CALLBACK (on_devtab_action_activate_swap_activated),
+                    window);
+  g_signal_connect (gtk_builder_get_object (window->builder, "devtab-action-deactivate-swap"),
+                    "activate",
+                    G_CALLBACK (on_devtab_action_deactivate_swap_activated),
+                    window);
 }
 
 static void
@@ -1305,6 +1315,25 @@ update_device_page_for_block (GduWindow         *window,
             }
         }
     }
+  else if (g_strcmp0 (udisks_block_device_get_id_usage (block), "other") == 0 &&
+           g_strcmp0 (udisks_block_device_get_id_type (block), "swap") == 0)
+    {
+      UDisksSwapspace *swapspace;
+      swapspace = UDISKS_PEEK_SWAPSPACE (object);
+      if (swapspace != NULL)
+        {
+          if (udisks_swapspace_get_active (swapspace))
+            {
+              gtk_action_set_visible (GTK_ACTION (gtk_builder_get_object (window->builder,
+                                                                          "devtab-action-deactivate-swap")), TRUE);
+            }
+          else
+            {
+              gtk_action_set_visible (GTK_ACTION (gtk_builder_get_object (window->builder,
+                                                                          "devtab-action-activate-swap")), TRUE);
+            }
+        }
+    }
   else if (g_strcmp0 (udisks_block_device_get_id_usage (block), "crypto") == 0)
     {
       GDBusObject *cleartext_device;
@@ -2229,3 +2258,81 @@ on_devtab_action_lock_activated (GtkAction *action,
 }
 
 /* ---------------------------------------------------------------------------------------------------- */
+
+static void
+swapspace_start_cb (UDisksSwapspace  *swapspace,
+                    GAsyncResult     *res,
+                    gpointer          user_data)
+{
+  GduWindow *window = GDU_WINDOW (user_data);
+  GError *error;
+
+  error = NULL;
+  if (!udisks_swapspace_call_start_finish (swapspace,
+                                           res,
+                                           &error))
+    {
+      gdu_window_show_error (window,
+                             _("Error starting swap"),
+                             error);
+      g_error_free (error);
+    }
+  g_object_unref (window);
+}
+
+static void
+on_devtab_action_activate_swap_activated (GtkAction *action, gpointer user_data)
+{
+  GduWindow *window = GDU_WINDOW (user_data);
+  GDBusObject *object;
+  UDisksSwapspace *swapspace;
+  const gchar *options[] = {NULL};
+
+  object = gdu_volume_grid_get_selected_device (GDU_VOLUME_GRID (window->volume_grid));
+  swapspace = UDISKS_PEEK_SWAPSPACE (object);
+  udisks_swapspace_call_start (swapspace,
+                               options, /* options */
+                               NULL, /* cancellable */
+                               (GAsyncReadyCallback) swapspace_start_cb,
+                               g_object_ref (window));
+}
+
+static void
+swapspace_stop_cb (UDisksSwapspace  *swapspace,
+                   GAsyncResult     *res,
+                   gpointer          user_data)
+{
+  GduWindow *window = GDU_WINDOW (user_data);
+  GError *error;
+
+  error = NULL;
+  if (!udisks_swapspace_call_stop_finish (swapspace,
+                                          res,
+                                          &error))
+    {
+      gdu_window_show_error (window,
+                             _("Error stopping swap"),
+                             error);
+      g_error_free (error);
+    }
+  g_object_unref (window);
+}
+
+static void
+on_devtab_action_deactivate_swap_activated (GtkAction *action, gpointer user_data)
+{
+  GduWindow *window = GDU_WINDOW (user_data);
+  GDBusObject *object;
+  UDisksSwapspace *swapspace;
+  const gchar *options[] = {NULL};
+
+  object = gdu_volume_grid_get_selected_device (GDU_VOLUME_GRID (window->volume_grid));
+  swapspace = UDISKS_PEEK_SWAPSPACE (object);
+  udisks_swapspace_call_stop (swapspace,
+                              options, /* options */
+                              NULL, /* cancellable */
+                              (GAsyncReadyCallback) swapspace_stop_cb,
+                              g_object_ref (window));
+}
+
+/* ---------------------------------------------------------------------------------------------------- */