[gnome-control-center] applications: Show snap interface controls

From: Georges Basile Stavracas Neto <gbsneto src gnome org>
To: commits-list gnome org
Cc:
Subject: [gnome-control-center] applications: Show snap interface controls
Date: Tue, 17 Dec 2019 23:35:33 +0000 (UTC)
commit 096eefe7b966dd869f0ee81e89d6d8f5d960ea90
Author: Robert Ancell <robert ancell canonical com>
Date:   Wed Feb 20 11:33:19 2019 +0100

    applications: Show snap interface controls

 panels/applications/applications.gresource.xml |   1 +
 panels/applications/cc-applications-panel.c    | 106 +++++-
 panels/applications/cc-snap-row.c              | 432 +++++++++++++++++++++++++
 panels/applications/cc-snap-row.h              |  35 ++
 panels/applications/cc-snap-row.ui             |  53 +++
 panels/applications/meson.build                |   1 +
 po/POTFILES.in                                 |   1 +
 7 files changed, 628 insertions(+), 1 deletion(-)
---
diff --git a/panels/applications/applications.gresource.xml b/panels/applications/applications.gresource.xml
index d23f1b2e0..b77aaba45 100644
--- a/panels/applications/applications.gresource.xml
+++ b/panels/applications/applications.gresource.xml
@@ -5,6 +5,7 @@
     <file preprocess="xml-stripblanks">cc-applications-panel.ui</file>
     <file preprocess="xml-stripblanks">cc-applications-row.ui</file>
     <file preprocess="xml-stripblanks">cc-info-row.ui</file>
+    <file preprocess="xml-stripblanks">cc-snap-row.ui</file>
     <file preprocess="xml-stripblanks">cc-toggle-row.ui</file>
     <file>cc-applications-panel.css</file>
   </gresource>
diff --git a/panels/applications/cc-applications-panel.c b/panels/applications/cc-applications-panel.c
index 8759afd42..f4d0605ad 100644
--- a/panels/applications/cc-applications-panel.c
+++ b/panels/applications/cc-applications-panel.c
@@ -23,6 +23,9 @@
 
 #include <config.h>
 #include <glib/gi18n.h>
+#ifdef HAVE_SNAP
+#include <snapd-glib/snapd-glib.h>
+#endif
 
 #include <gio/gdesktopappinfo.h>
 
@@ -33,6 +36,9 @@
 #include "cc-action-row.h"
 #include "cc-applications-resources.h"
 #include "cc-util.h"
+#ifdef HAVE_SNAP
+#include "cc-snap-row.h"
+#endif
 #include "globs.h"
 #include "list-box-helper.h"
 #include "search.h"
@@ -555,6 +561,98 @@ location_cb (CcApplicationsPanel *self)
 
 /* --- permissions section --- */
 
+#ifdef HAVE_SNAP
+static void
+remove_snap_permissions (CcApplicationsPanel *self)
+{
+  g_autoptr(GList) rows = NULL;
+  GList *link;
+
+  rows = gtk_container_get_children (GTK_CONTAINER (self->permission_list));
+  for (link = rows; link; link = link->next)
+    {
+      GtkWidget *row = link->data;
+
+      if (row == self->builtin)
+        break;
+
+      if (CC_IS_SNAP_ROW (row))
+        gtk_container_remove (GTK_CONTAINER (self->permission_list), GTK_WIDGET (row));
+    }
+}
+
+static gboolean
+add_snap_permissions (CcApplicationsPanel *self,
+                      GAppInfo            *info,
+                      const gchar         *app_id)
+{
+  const gchar *snap_name;
+  g_autoptr(GList) rows = NULL;
+  gint index;
+  g_autoptr(SnapdClient) client = NULL;
+  g_autoptr(GPtrArray) plugs = NULL;
+  g_autoptr(GPtrArray) slots = NULL;
+  gint added = 0;
+  g_autoptr(GError) error = NULL;
+
+  if (!g_str_has_prefix (app_id, PORTAL_SNAP_PREFIX))
+    return FALSE;
+  snap_name = app_id + strlen (PORTAL_SNAP_PREFIX);
+
+  rows = gtk_container_get_children (GTK_CONTAINER (self->permission_list));
+  index = g_list_index (rows, self->builtin);
+  g_assert (index >= 0);
+
+  client = snapd_client_new ();
+  if (!snapd_client_get_connections2_sync (client,
+                                           SNAPD_GET_CONNECTIONS_FLAGS_NONE,
+                                           snap_name, NULL,
+                                           NULL, NULL,
+                                           &plugs, &slots,
+                                           NULL, &error))
+    {
+      g_warning ("Failed to get snap interfaces: %s", error->message);
+      return FALSE;
+    }
+
+  for (int i = 0; i < plugs->len; i++)
+    {
+      SnapdPlug *plug = g_ptr_array_index (plugs, i);
+      CcSnapRow *row;
+      g_autoptr(GPtrArray) available_slots = NULL;
+      const gchar * const hidden_interfaces[] = { "content",
+                                                  "desktop", "desktop-legacy",
+                                                  "mir",
+                                                  "unity7", "unity8",
+                                                  "wayland",
+                                                  "x11",
+                                                  NULL };
+
+      /* Ignore interfaces that are too low level to make sense to show or disable */
+      if (g_strv_contains (hidden_interfaces, snapd_plug_get_interface (plug)))
+        continue;
+
+      available_slots = g_ptr_array_new_with_free_func (g_object_unref);
+      for (int j = 0; j < slots->len; j++)
+        {
+          SnapdSlot *slot = g_ptr_array_index (slots, j);
+          if (g_strcmp0 (snapd_plug_get_interface (plug), snapd_slot_get_interface (slot)) != 0)
+            continue;
+
+          g_ptr_array_add (available_slots, g_object_ref (slot));
+        }
+
+      row = cc_snap_row_new (self->cancellable, plug, available_slots);
+      gtk_widget_show (GTK_WIDGET (row));
+      gtk_list_box_insert (GTK_LIST_BOX (self->permission_list), GTK_WIDGET (row), index);
+      index++;
+      added++;
+    }
+
+    return added > 0;
+}
+#endif
+
 static gint
 add_static_permission_row (CcApplicationsPanel *self,
                            const gchar         *title,
@@ -600,7 +698,8 @@ add_static_permissions (CcApplicationsPanel *self,
   gint added = 0;
   g_autofree gchar *text = NULL;
 
-  keyfile = get_flatpak_metadata (app_id);
+  if (!g_str_has_prefix (app_id, PORTAL_SNAP_PREFIX))
+    keyfile = get_flatpak_metadata (app_id);
   if (keyfile == NULL)
     return FALSE;
 
@@ -681,6 +780,11 @@ update_permission_section (CcApplicationsPanel *self,
   gtk_widget_set_visible (self->no_location, set && disabled);
   has_any |= set;
 
+#ifdef HAVE_SNAP
+  remove_snap_permissions (self);
+  has_any |= add_snap_permissions (self, info, portal_app_id);
+#endif
+
   remove_static_permissions (self);
   has_builtin = add_static_permissions (self, info, portal_app_id);
   gtk_widget_set_visible (self->builtin, has_builtin);
diff --git a/panels/applications/cc-snap-row.c b/panels/applications/cc-snap-row.c
new file mode 100644
index 000000000..d20faf6e4
--- /dev/null
+++ b/panels/applications/cc-snap-row.c
@@ -0,0 +1,432 @@
+/* cc-snap-row.c
+ *
+ * Copyright 2019 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include <config.h>
+#include <glib/gi18n.h>
+
+#include "cc-snap-row.h"
+#include "cc-applications-resources.h"
+
+struct _CcSnapRow
+{
+  GtkListBoxRow parent;
+
+  GtkLabel     *title_label;
+  GtkSwitch    *slot_toggle;
+  GtkComboBox  *slots_combo;
+  GtkListStore *slots_combo_model;
+
+  GCancellable *cancellable;
+
+  SnapdPlug    *plug;
+  SnapdSlot    *connected_slot;
+  GPtrArray    *slots;
+};
+
+G_DEFINE_TYPE (CcSnapRow, cc_snap_row, GTK_TYPE_LIST_BOX_ROW)
+
+typedef struct
+{
+  CcSnapRow *self;
+  SnapdSlot *slot;
+} ConnectData;
+
+static const gchar *
+get_label (const gchar *interface_name)
+{
+  if (strcmp (interface_name, "account-control") == 0)
+    return _("Add user accounts and change passwords");
+  else if (strcmp (interface_name, "alsa") == 0)
+    return _("Play and record sound");
+  else if (strcmp (interface_name, "avahi-observe") == 0)
+    return _("Detect network devices using mDNS/DNS-SD (Bonjour/zeroconf)");
+  else if (strcmp (interface_name, "bluetooth-control") == 0)
+    return _("Access bluetooth hardware directly");
+  else if (strcmp (interface_name, "bluez") == 0)
+    return _("Use bluetooth devices");
+  else if (strcmp (interface_name, "camera") == 0)
+    return _("Use your camera");
+  else if (strcmp (interface_name, "cups-control") == 0)
+    return _("Print documents");
+  else if (strcmp (interface_name, "joystick") == 0)
+    return _("Use any connected joystick");
+  else if (strcmp (interface_name, "docker") == 0)
+    return _("Allow connecting to the Docker service");
+  else if (strcmp (interface_name, "gsettings") == 0)
+    return _("Can change settings");
+  else if (strcmp (interface_name, "firewall-control") == 0)
+    return _("Configure network firewall");
+  else if (strcmp (interface_name, "fuse-support") == 0)
+    return _("Setup and use privileged FUSE filesystems");
+  else if (strcmp (interface_name, "fwupd") == 0)
+    return _("Update firmware on this device");
+  else if (strcmp (interface_name, "hardware-observe") == 0)
+    return _("Access hardware information");
+  else if (strcmp (interface_name, "hardware-random-control") == 0)
+    return _("Provide entropy to hardware random number generator");
+  else if (strcmp (interface_name, "hardware-random-observe") == 0)
+    return _("Use hardware-generated random numbers");
+  else if (strcmp (interface_name, "home") == 0)
+    return _("Access files in your home folder");
+  else if (strcmp (interface_name, "libvirt") == 0)
+    return _("Access libvirt service");
+  else if (strcmp (interface_name, "locale-control") == 0)
+    return _("Change system language and region settings");
+  else if (strcmp (interface_name, "location-control") == 0)
+    return _("Change location settings and providers");
+  else if (strcmp (interface_name, "location-observe") == 0)
+    return _("Access your location");
+  else if (strcmp (interface_name, "log-observe") == 0)
+    return _("Read system and application logs");
+  else if (strcmp (interface_name, "lxd") == 0)
+    return _("Access LXD service");
+  else if (strcmp (interface_name, "media-hub") == 0)
+    return _("access the media-hub service");
+  else if (strcmp (interface_name, "modem-manager") == 0)
+    return _("Use and configure modems");
+  else if (strcmp (interface_name, "mount-observe") == 0)
+    return _("Read system mount information and disk quotas");
+  else if (strcmp (interface_name, "mpris") == 0)
+    return _("Control music and video players");
+  else if (strcmp (interface_name, "network") == 0)
+    return _("Has network access");
+  else if (strcmp (interface_name, "network-control") == 0)
+    return _("Change low-level network settings");
+  else if (strcmp (interface_name, "network-manager") == 0)
+    return _("Access the NetworkManager service to read and change network settings");
+  else if (strcmp (interface_name, "network-observe") == 0)
+    return _("Read access to network settings");
+  else if (strcmp (interface_name, "network-setup-control") == 0)
+    return _("Change network settings");
+  else if (strcmp (interface_name, "network-setup-observe") == 0)
+    return _("Read network settings");
+  else if (strcmp (interface_name, "ofono") == 0)
+    return _("Access the ofono service to read and change network settings for mobile telephony");
+  else if (strcmp (interface_name, "openvtswitch") == 0)
+    return _("Control Open vSwitch hardware");
+  else if (strcmp (interface_name, "optical-drive") == 0)
+    return _("Read from CD/DVD");
+  else if (strcmp (interface_name, "password-manager-service") == 0)
+    return _("Read, add, change, or remove saved passwords");
+  else if (strcmp (interface_name, "ppp") == 0)
+    return _("Access pppd and ppp devices for configuring Point-to-Point Protocol connections");
+  else if (strcmp (interface_name, "process-control") == 0)
+    return _("Pause or end any process on the system");
+  else if (strcmp (interface_name, "pulseaudio") == 0)
+    return _("Play and record sound");
+  else if (strcmp (interface_name, "raw-usb") == 0)
+    return _("Access USB hardware directly");
+  else if (strcmp (interface_name, "removable-media") == 0)
+    return _("Read/write files on removable storage devices");
+  else if (strcmp (interface_name, "screen-inhibit-control") == 0)
+    return _("Prevent screen sleep/lock");
+  else if (strcmp (interface_name, "serial-port") == 0)
+    return _("Access serial port hardware");
+  else if (strcmp (interface_name, "shutdown") == 0)
+    return _("Restart or power off the device");
+  else if (strcmp (interface_name, "snapd-control") == 0)
+    return _("Install, remove and configure software");
+  else if (strcmp (interface_name, "storage-framework-service") == 0)
+    return _("Access Storage Framework service");
+  else if (strcmp (interface_name, "system-observe") == 0)
+    return _("Read process and system information");
+  else if (strcmp (interface_name, "system-trace") == 0)
+    return _("Monitor and control any running program");
+  else if (strcmp (interface_name, "time-control") == 0)
+    return _("Change the date and time");
+  else if (strcmp (interface_name, "timeserver-control") == 0)
+    return _("Change time server settings");
+  else if (strcmp (interface_name, "timezone-control") == 0)
+    return _("Change the time zone");
+  else if (strcmp (interface_name, "udisks2") == 0)
+    return _("Access the UDisks2 service for configuring disks and removable media");
+  else if (strcmp (interface_name, "unity8-calendar") == 0)
+    return _("Read/change shared calendar events in Ubuntu Unity 8");
+  else if (strcmp (interface_name, "unity8-contacts") == 0)
+    return _("Read/change shared contacts in Ubuntu Unity 8");
+  else if (strcmp (interface_name, "upower-observe") == 0)
+    return _("Access energy usage data");
+  else if (strcmp (interface_name, "u2f-devices") == 0)
+    return _("Read/write access to U2F devices exposed");
+  else
+    return interface_name;
+}
+
+static void
+update_state (CcSnapRow *self)
+{
+  gboolean have_single_option;
+  GtkTreeIter iter;
+
+  have_single_option = self->slots->len == 1;
+  gtk_widget_set_visible (GTK_WIDGET (self->slot_toggle), have_single_option);
+  gtk_widget_set_visible (GTK_WIDGET (self->slots_combo), !have_single_option);
+
+  gtk_switch_set_active (self->slot_toggle, self->connected_slot != NULL);
+
+  if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (self->slots_combo_model), &iter))
+    {
+      do
+        {
+          SnapdSlot *slot;
+
+          gtk_tree_model_get (GTK_TREE_MODEL (self->slots_combo_model), &iter, 0, &slot, -1);
+          if (slot == self->connected_slot)
+            gtk_combo_box_set_active_iter (self->slots_combo, &iter);
+        } while (gtk_tree_model_iter_next (GTK_TREE_MODEL (self->slots_combo_model), &iter));
+    }
+}
+
+static void
+disable_controls (CcSnapRow *self)
+{
+  gtk_widget_set_sensitive (GTK_WIDGET (self->slot_toggle), FALSE);
+  gtk_widget_set_sensitive (GTK_WIDGET (self->slots_combo), FALSE);
+}
+
+static void
+enable_controls (CcSnapRow *self)
+{
+  gtk_widget_set_sensitive (GTK_WIDGET (self->slot_toggle), TRUE);
+  gtk_widget_set_sensitive (GTK_WIDGET (self->slots_combo), TRUE);
+}
+
+static ConnectData *
+connect_data_new (CcSnapRow *self, SnapdSlot *slot)
+{
+  ConnectData *data;
+
+  data = g_new0 (ConnectData, 1);
+  data->self = self;
+  data->slot = g_object_ref (slot);
+
+  return data;
+}
+
+static void
+connect_data_free (ConnectData *data)
+{
+  g_clear_object (&data->slot);
+  g_free (data);
+}
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (ConnectData, connect_data_free)
+
+static void
+connect_interface_cb (GObject *client, GAsyncResult *result, gpointer user_data)
+{
+  g_autoptr(ConnectData) data = user_data;
+  CcSnapRow *self = data->self;
+  SnapdSlot *slot = data->slot;
+  g_autoptr(GError) error = NULL;
+
+  if (snapd_client_connect_interface_finish (SNAPD_CLIENT (client), result, &error))
+    {
+      g_clear_object (&self->connected_slot);
+      self->connected_slot = g_object_ref (slot);
+    }
+  else
+    {
+      if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        return;
+      g_warning ("Failed to connect interface: %s", error->message);
+    }
+
+  update_state (self);
+  enable_controls (self);
+}
+
+static void
+connect_plug (CcSnapRow *self, SnapdSlot *slot)
+{
+  g_autoptr(SnapdClient) client = NULL;
+
+  /* already connected */
+  if (self->connected_slot == slot)
+    return;
+
+  disable_controls (self);
+
+  client = snapd_client_new ();
+  snapd_client_connect_interface_async (client,
+                                        snapd_plug_get_snap (self->plug), snapd_plug_get_name (self->plug),
+                                        snapd_slot_get_snap (slot), snapd_slot_get_name (slot),
+                                        NULL, NULL,
+                                        self->cancellable,
+                                        connect_interface_cb, connect_data_new (self, slot));
+}
+
+static void
+disconnect_interface_cb (GObject *client, GAsyncResult *result, gpointer user_data)
+{
+  CcSnapRow *self = user_data;
+  g_autoptr(GError) error = NULL;
+
+  if (snapd_client_disconnect_interface_finish (SNAPD_CLIENT (client), result, &error))
+    {
+      g_clear_object (&self->connected_slot);
+    }
+  else
+    {
+      if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        return;
+      g_warning ("Failed to disconnect interface: %s", error->message);
+    }
+
+  update_state (self);
+  enable_controls (self);
+}
+
+static void
+disconnect_plug (CcSnapRow *self)
+{
+  g_autoptr(SnapdClient) client = NULL;
+
+  /* already disconnected */
+  if (self->connected_slot == NULL)
+    return;
+
+  disable_controls (self);
+
+  client = snapd_client_new ();
+  snapd_client_disconnect_interface_async (client,
+                                           snapd_plug_get_snap (self->plug), snapd_plug_get_name 
(self->plug),
+                                           NULL, NULL,
+                                           NULL, NULL,
+                                           self->cancellable,
+                                           disconnect_interface_cb, self);
+}
+
+static void
+switch_changed_cb (CcSnapRow *self)
+{
+  if (gtk_switch_get_active (self->slot_toggle))
+    {
+      if (self->slots->len == 1)
+        connect_plug (self, g_ptr_array_index (self->slots, 0));
+    }
+  else
+    {
+      disconnect_plug (self);
+    }
+}
+
+static void
+combo_changed_cb (CcSnapRow *self)
+{
+  GtkTreeIter iter;
+  SnapdSlot *slot = NULL;
+
+  if (!gtk_combo_box_get_active_iter (self->slots_combo, &iter))
+    return;
+
+  gtk_tree_model_get (GTK_TREE_MODEL (self->slots_combo_model), &iter, 0, &slot, -1);
+  if (slot != NULL)
+    connect_plug (self, slot);
+  else
+    disconnect_plug (self);
+}
+
+static void
+cc_snap_row_finalize (GObject *object)
+{
+  CcSnapRow *self = CC_SNAP_ROW (object);
+
+  g_clear_object (&self->cancellable);
+  g_clear_object (&self->plug);
+  g_clear_pointer (&self->slots, g_ptr_array_unref);
+
+  G_OBJECT_CLASS (cc_snap_row_parent_class)->finalize (object);
+}
+
+static void
+cc_snap_row_class_init (CcSnapRowClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->finalize = cc_snap_row_finalize;
+
+  gtk_widget_class_set_template_from_resource (widget_class, 
"/org/gnome/control-center/applications/cc-snap-row.ui");
+
+  gtk_widget_class_bind_template_child (widget_class, CcSnapRow, title_label);
+  gtk_widget_class_bind_template_child (widget_class, CcSnapRow, slot_toggle);
+  gtk_widget_class_bind_template_child (widget_class, CcSnapRow, slots_combo);
+  gtk_widget_class_bind_template_child (widget_class, CcSnapRow, slots_combo_model);
+
+  gtk_widget_class_bind_template_callback (widget_class, combo_changed_cb);
+  gtk_widget_class_bind_template_callback (widget_class, switch_changed_cb);
+}
+
+static void
+cc_snap_row_init (CcSnapRow *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+}
+
+CcSnapRow *
+cc_snap_row_new (GCancellable *cancellable, SnapdPlug *plug, GPtrArray *slots)
+{
+  CcSnapRow *self;
+  GPtrArray *connected_slots;
+  GtkTreeIter iter;
+
+  g_return_val_if_fail (SNAPD_IS_PLUG (plug), NULL);
+
+  self = CC_SNAP_ROW (g_object_new (CC_TYPE_SNAP_ROW, NULL));
+
+  self->cancellable = g_object_ref (cancellable);
+  self->plug = g_object_ref (plug);
+  self->slots = g_ptr_array_ref (slots);
+
+  connected_slots = snapd_plug_get_connected_slots (plug);
+  if (connected_slots->len > 0)
+    {
+      SnapdSlotRef *connected_slot_ref = g_ptr_array_index (connected_slots, 0);
+
+      for (int i = 0; i < slots->len; i++)
+        {
+          SnapdSlot *slot = g_ptr_array_index (slots, i);
+
+          if (g_strcmp0 (snapd_slot_get_snap (slot), snapd_slot_ref_get_snap (connected_slot_ref)) == 0 &&
+              g_strcmp0 (snapd_slot_get_name (slot), snapd_slot_ref_get_slot (connected_slot_ref)) == 0)
+            self->connected_slot = slot;
+        }
+    }
+
+  gtk_label_set_label (self->title_label, get_label (snapd_plug_get_interface (plug)));
+
+  /* Add option into combo box */
+  gtk_list_store_append (self->slots_combo_model, &iter);
+  gtk_list_store_set (self->slots_combo_model, &iter, 1, "--", -1);
+  for (int i = 0; i < slots->len; i++)
+    {
+      SnapdSlot *slot = g_ptr_array_index (slots, i);
+      g_autofree gchar *label = NULL;
+
+      label = g_strdup_printf ("%s:%s", snapd_slot_get_snap (slot), snapd_slot_get_name (slot));
+      gtk_list_store_append (self->slots_combo_model, &iter);
+      gtk_list_store_set (self->slots_combo_model, &iter, 0, slot, 1, label, -1);
+    }
+
+  update_state (self);
+
+  return self;
+}
diff --git a/panels/applications/cc-snap-row.h b/panels/applications/cc-snap-row.h
new file mode 100644
index 000000000..26563bd8d
--- /dev/null
+++ b/panels/applications/cc-snap-row.h
@@ -0,0 +1,35 @@
+/* cc-snap-row.h
+ *
+ * Copyright 2019 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include <snapd-glib/snapd-glib.h>
+
+G_BEGIN_DECLS
+
+#define CC_TYPE_SNAP_ROW (cc_snap_row_get_type())
+G_DECLARE_FINAL_TYPE (CcSnapRow, cc_snap_row, CC, SNAP_ROW, GtkListBoxRow)
+
+CcSnapRow* cc_snap_row_new      (GCancellable *cancellable,
+                                 SnapdPlug    *plug,
+                                 GPtrArray    *slots);
+
+G_END_DECLS
diff --git a/panels/applications/cc-snap-row.ui b/panels/applications/cc-snap-row.ui
new file mode 100644
index 000000000..fb485c99e
--- /dev/null
+++ b/panels/applications/cc-snap-row.ui
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GtkListStore" id="slots_combo_model">
+    <columns>
+      <!-- column-name slot -->
+      <column type="GObject"/>
+      <!-- column-name label -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <template class="CcSnapRow" parent="GtkListBoxRow">
+    <property name="visible">True</property>
+    <property name="can-focus">True</property>
+    <property name="activatable">False</property>
+    <child>
+      <object class="GtkBox">
+        <property name="visible">True</property>
+        <property name="border-width">12</property>
+        <property name="spacing">12</property>
+        <child>
+          <object class="GtkLabel" id="title_label">
+            <property name="visible">True</property>
+            <property name="xalign">0</property>
+            <property name="hexpand">1</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkSwitch" id="slot_toggle">
+            <property name="visible">True</property>
+            <property name="valign">center</property>
+            <signal name="notify::active" handler="switch_changed_cb" swapped="yes"/>
+          </object>
+        </child>
+        <child>
+          <object class="GtkComboBox" id="slots_combo">
+            <property name="visible">True</property>
+            <property name="valign">center</property>
+            <property name="model">slots_combo_model</property>
+            <signal name="changed" handler="combo_changed_cb" swapped="yes"/>
+            <child>
+              <object class="GtkCellRendererText">
+                <property name="ellipsize">end</property>
+              </object>
+              <attributes>
+                <attribute name="text">1</attribute>
+              </attributes>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/panels/applications/meson.build b/panels/applications/meson.build
index ce3b41a77..4e324c33e 100644
--- a/panels/applications/meson.build
+++ b/panels/applications/meson.build
@@ -42,6 +42,7 @@ deps = common_deps
 
 if enable_snap
   deps += snapd_glib_deps
+  sources += files('cc-snap-row.c')
 endif
 
 panels_libs += static_library(
diff --git a/po/POTFILES.in b/po/POTFILES.in
index bd46ca1ba..7584e1769 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -2,6 +2,7 @@
 # Please keep this file sorted alphabetically.
 panels/applications/cc-applications-panel.c
 panels/applications/cc-applications-panel.ui
+panels/applications/cc-snap-row.c
 panels/applications/gnome-applications-panel.desktop.in.in
 panels/background/bg-colors-source.c
 panels/background/cc-background-chooser.c
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