[gnome-control-center/wip/privacy-swarm: 156/160] Add a microphone panel

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit d7c0c0d4e0f5edcfc0a4ef3f1dec1a21f7fd2770
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 11 14:24:32 2018 -0500

    Add a microphone panel
    
    This is a broken out version of the privacy panel dialog.

 panels/microphone/cc-microphone-panel.c            | 472 +++++++++++++++++++++
 panels/microphone/cc-microphone-panel.h            |  30 ++
 panels/microphone/cc-microphone-panel.ui           | 107 +++++
 .../gnome-microphone-panel.desktop.in.in           |  19 +
 panels/microphone/meson.build                      |  40 ++
 panels/microphone/microphone.gresource.xml         |   6 +
 6 files changed, 674 insertions(+)
---
diff --git a/panels/microphone/cc-microphone-panel.c b/panels/microphone/cc-microphone-panel.c
new file mode 100644
index 000000000..856b942fc
--- /dev/null
+++ b/panels/microphone/cc-microphone-panel.c
@@ -0,0 +1,472 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2018 Red Hat, Inc
+ *
+ * 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 2 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/>.
+ *
+ * Author: Matthias Clasen <mclasen redhat com>
+ */
+
+#include "list-box-helper.h"
+#include "cc-microphone-panel.h"
+#include "cc-microphone-resources.h"
+#include "cc-util.h"
+
+#include <gio/gdesktopappinfo.h>
+#include <glib/gi18n.h>
+
+#define APP_PERMISSIONS_TABLE "devices"
+#define APP_PERMISSIONS_ID "microphone"
+
+struct _CcMicrophonePanel
+{
+  CcPanel     parent_instance;
+
+  GtkStack *stack;
+  GtkListBox  *microphone_apps_list_box;
+
+  GSettings  *privacy_settings;
+
+  GCancellable *cancellable;
+
+  GDBusProxy *perm_store;
+  GVariant *microphone_apps_perms;
+  GVariant *microphone_apps_data;
+  GHashTable *microphone_app_switches;
+
+  GtkSizeGroup *microphone_icon_size_group;
+};
+
+CC_PANEL_REGISTER (CcMicrophonePanel, cc_microphone_panel)
+
+typedef struct
+{
+  CcMicrophonePanel *self;
+  GtkWidget *widget;
+  gchar *app_id;
+  gboolean changing_state;
+  gboolean pending_state;
+} MicrophoneAppStateData;
+
+static void
+microphone_app_state_data_free (MicrophoneAppStateData *data)
+{
+    g_free (data->app_id);
+    g_slice_free (MicrophoneAppStateData, data);
+}
+
+static void
+on_perm_store_set_done (GObject *source_object,
+                        GAsyncResult *res,
+                        gpointer user_data)
+{
+  MicrophoneAppStateData *data;
+  GVariant *results;
+  GError *error = NULL;
+
+  results = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object),
+                                      res,
+                                      &error);
+  if (results == NULL)
+    {
+      if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        g_warning ("Failed to store permissions: %s", error->message);
+      g_error_free (error);
+
+      return;
+    }
+  g_variant_unref (results);
+
+  data = (MicrophoneAppStateData *) user_data;
+  data->changing_state = FALSE;
+  gtk_switch_set_state (GTK_SWITCH (data->widget), data->pending_state);
+}
+
+static gboolean
+on_microphone_app_state_set (GtkSwitch *widget,
+                           gboolean   state,
+                           gpointer   user_data)
+{
+  MicrophoneAppStateData *data = (MicrophoneAppStateData *) user_data;
+  CcMicrophonePanel *self = data->self;
+  GVariant *params;
+  GVariantIter iter;
+  gchar *key;
+  gchar **value;
+  GVariantBuilder builder;
+
+  if (data->changing_state)
+    return TRUE;
+
+  data->changing_state = TRUE;
+  data->pending_state = state;
+
+  g_variant_iter_init (&iter, self->microphone_apps_perms);
+  g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
+  while (g_variant_iter_loop (&iter, "{s^as}", &key, &value))
+    {
+      gchar *tmp = NULL;
+
+      if (g_strv_length (value) != 1)
+        /* It's OK to drop the entry if it's not in expected format */
+        continue;
+
+      if (g_strcmp0 (data->app_id, key) == 0)
+        {
+          tmp = value[0];
+          value[0] = state ? "yes" : "no";
+        }
+
+      g_variant_builder_add (&builder, "{s^as}", key, value);
+
+      if (tmp != NULL)
+        value[0] = tmp;
+    }
+
+  params = g_variant_new ("(sbsa{sas}v)",
+                          APP_PERMISSIONS_TABLE,
+                          TRUE,
+                          APP_PERMISSIONS_ID,
+                          &builder,
+                          self->microphone_apps_data);
+
+  g_dbus_proxy_call (self->perm_store,
+                     "Set",
+                     params,
+                     G_DBUS_CALL_FLAGS_NONE,
+                     -1,
+                     self->cancellable,
+                     on_perm_store_set_done,
+                     data);
+
+  return TRUE;
+}
+
+static void
+add_microphone_app (CcMicrophonePanel *self,
+                  const gchar    *app_id,
+                  gboolean        enabled)
+{
+  GDesktopAppInfo *app_info;
+  char *desktop_id;
+  GtkWidget *box, *row, *w;
+  GIcon *icon;
+  MicrophoneAppStateData *data;
+
+  w = g_hash_table_lookup (self->microphone_app_switches, app_id);
+  if (w != NULL)
+    {
+      gtk_switch_set_active (GTK_SWITCH (w), enabled);
+
+      return;
+    }
+
+  desktop_id = g_strdup_printf ("%s.desktop", app_id);
+  app_info = g_desktop_app_info_new (desktop_id);
+  g_free (desktop_id);
+  if (app_info == NULL)
+      return;
+
+  row = gtk_list_box_row_new ();
+  gtk_widget_show (row);
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_show (box);
+  gtk_widget_set_margin_start (box, 12);
+  gtk_widget_set_margin_end (box, 6);
+  gtk_widget_set_margin_top (box, 12);
+  gtk_widget_set_margin_bottom (box, 12);
+  gtk_container_add (GTK_CONTAINER (row), box);
+  gtk_widget_set_hexpand (box, TRUE);
+  gtk_container_add (GTK_CONTAINER (self->microphone_apps_list_box), row);
+
+  icon = g_app_info_get_icon (G_APP_INFO (app_info));
+  w = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_LARGE_TOOLBAR);
+  gtk_widget_show (w);
+  gtk_widget_set_halign (w, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (w, GTK_ALIGN_CENTER);
+  gtk_size_group_add_widget (self->microphone_icon_size_group, w);
+  gtk_box_pack_start (GTK_BOX (box), w, FALSE, FALSE, 0);
+
+  w = gtk_label_new (g_app_info_get_name (G_APP_INFO (app_info)));
+  gtk_widget_show (w);
+  gtk_widget_set_margin_start (w, 12);
+  gtk_widget_set_margin_end (w, 12);
+  gtk_widget_set_halign (w, GTK_ALIGN_START);
+  gtk_widget_set_valign (w, GTK_ALIGN_CENTER);
+  gtk_label_set_xalign (GTK_LABEL (w), 0);
+  gtk_box_pack_start (GTK_BOX (box), w, TRUE, TRUE, 0);
+
+  w = gtk_switch_new ();
+  gtk_widget_show (w);
+  gtk_switch_set_active (GTK_SWITCH (w), enabled);
+  gtk_widget_set_halign (w, GTK_ALIGN_END);
+  gtk_widget_set_valign (w, GTK_ALIGN_CENTER);
+  gtk_box_pack_start (GTK_BOX (box), w, FALSE, FALSE, 0);
+  g_settings_bind (self->privacy_settings, "disable-microphone",
+                   w, "sensitive",
+                   G_SETTINGS_BIND_INVERT_BOOLEAN);
+  g_hash_table_insert (self->microphone_app_switches,
+                       g_strdup (app_id),
+                       g_object_ref (w));
+
+  data = g_slice_new (MicrophoneAppStateData);
+  data->self = self;
+  data->app_id = g_strdup (app_id);
+  data->widget = w;
+  data->changing_state = FALSE;
+  g_signal_connect_data (G_OBJECT (w),
+                         "state-set",
+                         G_CALLBACK (on_microphone_app_state_set),
+                         data,
+                         (GClosureNotify) microphone_app_state_data_free,
+                         0);
+}
+
+/* Steals permissions and permissions_data references */
+static void
+update_perm_store (CcMicrophonePanel *self,
+                   GVariant *permissions,
+                   GVariant *permissions_data)
+{
+  GVariantIter iter;
+  gchar *key;
+  gchar **value;
+  gboolean has_app;
+
+  g_clear_pointer (&self->microphone_apps_perms, g_variant_unref);
+  self->microphone_apps_perms = permissions;
+  g_clear_pointer (&self->microphone_apps_data, g_variant_unref);
+  self->microphone_apps_data = permissions_data;
+
+  has_app = FALSE;
+  g_variant_iter_init (&iter, permissions);
+  while (g_variant_iter_loop (&iter, "{s^as}", &key, &value))
+    {
+      gboolean enabled;
+
+      if (g_strv_length (value) != 1)
+        {
+          g_debug ("Permissions for %s in incorrect format, ignoring.", key);
+          continue;
+        }
+
+      enabled = (g_strcmp0 (value[0], "no") != 0);
+
+      add_microphone_app (self, key, enabled);
+      has_app = TRUE;
+    }
+
+  gtk_widget_set_visible (GTK_WIDGET (self->microphone_apps_list_box), has_app);
+}
+
+static void
+on_perm_store_signal (GDBusProxy *proxy,
+                      gchar      *sender_name,
+                      gchar      *signal_name,
+                      GVariant   *parameters,
+                      gpointer    user_data)
+{
+  GVariant *permissions, *permissions_data;
+
+  if (g_strcmp0 (signal_name, "Changed") != 0)
+    return;
+
+  permissions = g_variant_get_child_value (parameters, 4);
+  permissions_data = g_variant_get_child_value (parameters, 3);
+  update_perm_store (user_data, permissions, permissions_data);
+}
+
+static void
+on_perm_store_lookup_done(GObject      *source_object,
+                          GAsyncResult *res,
+                          gpointer      user_data)
+{
+  CcMicrophonePanel *self = user_data;
+  g_autoptr (GError) error = NULL;
+  GVariant *ret, *permissions, *permissions_data;
+
+  ret = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object),
+                                  res,
+                                  &error);
+  if (ret == NULL)
+    {
+      if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        g_warning ("Failed fetch permissions from flatpak permission store: %s", error->message);
+
+      gtk_widget_set_visible (GTK_WIDGET (self->microphone_apps_list_box), FALSE);
+
+      return;
+    }
+
+  permissions = g_variant_get_child_value (ret, 0);
+  permissions_data = g_variant_get_child_value (ret, 1);
+  update_perm_store (user_data, permissions, permissions_data);
+
+  g_signal_connect_object (source_object,
+                           "g-signal",
+                           G_CALLBACK (on_perm_store_signal),
+                           user_data,
+                           0);
+}
+
+static void
+on_perm_store_ready (GObject      *source_object,
+                     GAsyncResult *res,
+                     gpointer      user_data)
+{
+  CcMicrophonePanel *self;
+  g_autoptr (GError) error = NULL;
+  GDBusProxy *proxy;
+  GVariant *params;
+
+  proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
+  if (proxy == NULL)
+    {
+      if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        g_warning ("Failed to connect to flatpak permission store: %s", error->message);
+      return;
+    }
+  self = user_data;
+  self->perm_store = proxy;
+
+  params = g_variant_new ("(ss)",
+                          APP_PERMISSIONS_TABLE,
+                          APP_PERMISSIONS_ID);
+  g_dbus_proxy_call (self->perm_store,
+                     "Lookup",
+                     params,
+                     G_DBUS_CALL_FLAGS_NONE,
+                     -1,
+                     self->cancellable,
+                     on_perm_store_lookup_done,
+                     self);
+}
+
+static void
+cc_microphone_panel_finalize (GObject *object)
+{
+  CcMicrophonePanel *self = CC_MICROPHONE_PANEL (object);
+
+  g_cancellable_cancel (self->cancellable);
+  g_clear_object (&self->privacy_settings);
+  g_clear_object (&self->cancellable);
+  g_clear_object (&self->perm_store);
+  g_clear_object (&self->microphone_icon_size_group);
+  g_clear_pointer (&self->microphone_apps_perms, g_variant_unref);
+  g_clear_pointer (&self->microphone_apps_data, g_variant_unref);
+  g_clear_pointer (&self->microphone_app_switches, g_hash_table_unref);
+
+  G_OBJECT_CLASS (cc_microphone_panel_parent_class)->finalize (object);
+}
+
+static const char *
+cc_microphone_panel_get_help_uri (CcPanel *panel)
+{
+  return "help:gnome-help/microphone";
+}
+
+static void
+cc_microphone_panel_init (CcMicrophonePanel *self)
+{
+  g_resources_register (cc_microphone_get_resource ());
+
+  gtk_widget_init_template (GTK_WIDGET (self));
+
+  self->cancellable = g_cancellable_new ();
+
+  gtk_list_box_set_header_func (self->microphone_apps_list_box,
+                                cc_list_box_update_header_func,
+                                NULL, NULL);
+  self->microphone_icon_size_group = gtk_size_group_new (GTK_SIZE_GROUP_BOTH);
+
+  self->privacy_settings = g_settings_new ("org.gnome.desktop.privacy");
+
+
+  self->microphone_app_switches = g_hash_table_new_full (g_str_hash,
+                                                       g_str_equal,
+                                                       g_free,
+                                                       g_object_unref);
+
+  g_dbus_proxy_new_for_bus (G_BUS_TYPE_SESSION,
+                            G_DBUS_PROXY_FLAGS_NONE,
+                            NULL,
+                            "org.freedesktop.impl.portal.PermissionStore",
+                            "/org/freedesktop/impl/portal/PermissionStore",
+                            "org.freedesktop.impl.portal.PermissionStore",
+                            self->cancellable,
+                            on_perm_store_ready,
+                            self);
+}
+
+static gboolean
+to_child_name (GBinding *binding,
+               const GValue *from,
+               GValue *to,
+               gpointer user_data)
+{
+  if (g_value_get_boolean (from))
+    g_value_set_string (to, "content");
+  else
+    g_value_set_string (to, "empty");
+  return TRUE;
+}
+
+static void
+cc_microphone_panel_constructed (GObject *object)
+{
+  CcMicrophonePanel *self = CC_MICROPHONE_PANEL (object);
+  GtkWidget *box, *widget;
+
+  G_OBJECT_CLASS (cc_microphone_panel_parent_class)->constructed (object);
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_widget_show (box);
+
+  widget = gtk_switch_new ();
+  gtk_widget_show (widget);
+  gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
+  gtk_box_pack_start (GTK_BOX (box), widget, FALSE, FALSE, 4);
+
+  g_settings_bind (self->privacy_settings, "disable-microphone",
+                   widget, "active",
+                   G_SETTINGS_BIND_INVERT_BOOLEAN);
+  g_object_bind_property_full  (widget, "active",
+                                self->stack, "visible-child-name",
+                                G_BINDING_SYNC_CREATE,
+                                to_child_name,
+                                NULL,
+                                NULL, NULL);
+
+  cc_shell_embed_widget_in_header (cc_panel_get_shell (CC_PANEL (self)),
+                                   box,
+                                   GTK_POS_RIGHT);
+}
+
+static void
+cc_microphone_panel_class_init (CcMicrophonePanelClass *klass)
+{
+  CcPanelClass *panel_class = CC_PANEL_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  panel_class->get_help_uri = cc_microphone_panel_get_help_uri;
+
+  object_class->finalize = cc_microphone_panel_finalize;
+  object_class->constructed = cc_microphone_panel_constructed;
+
+  gtk_widget_class_set_template_from_resource (widget_class, 
"/org/gnome/control-center/microphone/cc-microphone-panel.ui");
+
+  gtk_widget_class_bind_template_child (widget_class, CcMicrophonePanel, stack);
+  gtk_widget_class_bind_template_child (widget_class, CcMicrophonePanel, microphone_apps_list_box);
+}
diff --git a/panels/microphone/cc-microphone-panel.h b/panels/microphone/cc-microphone-panel.h
new file mode 100644
index 000000000..7b5aee594
--- /dev/null
+++ b/panels/microphone/cc-microphone-panel.h
@@ -0,0 +1,30 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2018 Red Hat, Inc
+ *
+ * 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 2 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/>.
+ *
+ * Author: Matthias Clasen <mclasen redhat com>
+ */
+
+#pragma once
+
+#include <shell/cc-panel.h>
+
+G_BEGIN_DECLS
+
+#define CC_TYPE_MICROPHONE_PANEL (cc_microphone_panel_get_type ())
+G_DECLARE_FINAL_TYPE (CcMicrophonePanel, cc_microphone_panel, CC, MICROPHONE_PANEL, CcPanel)
+
+G_END_DECLS
diff --git a/panels/microphone/cc-microphone-panel.ui b/panels/microphone/cc-microphone-panel.ui
new file mode 100644
index 000000000..54e9aa692
--- /dev/null
+++ b/panels/microphone/cc-microphone-panel.ui
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.18.1 -->
+<interface>
+  <requires lib="gtk+" version="3.14"/>
+  <template class="CcMicrophonePanel" parent="CcPanel">
+    <property name="visible">True</property>
+    <child>
+      <object class="GtkStack" id="stack">
+        <property name="visible">1</property>
+        <child>
+          <object class="GtkBox">
+            <property name="visible">1</property>
+            <property name="orientation">vertical</property>
+            <property name="valign">center</property>
+            <child>
+              <object class="GtkImage">
+                <property name="visible">1</property>
+                <property name="valign">start</property>
+                <property name="pixel-size">96</property>
+                <property name="icon-name">microphone-disabled-symbolic</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+              <packing>
+                <property name="fill">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">1</property>
+                <property name="margin-top">20</property>
+                <property name="margin-bottom">15</property>
+                <property name="label" translatable="yes">Microphone is turned off</property>
+                <attributes>
+                  <attribute name="scale" value="1.44"/>
+                </attributes>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">1</property>
+                <property name="label" translatable="yes">No applications can record sound.</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">empty</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkScrolledWindow">
+            <property name="visible">1</property>
+            <property name="hscrollbar-policy">never</property>
+            <child>
+              <object class="HdyColumn">
+                <property name="visible">True</property>
+                <property name="maximum_width">600</property>
+                <property name="linear_growth_width">400</property>
+                <property name="margin_top">32</property>
+                <property name="margin_bottom">32</property>
+                <property name="margin_start">12</property>
+                <property name="margin_end">12</property>
+
+                <child>
+                  <object class="GtkBox">
+                    <property name="visible">1</property>
+                    <property name="orientation">vertical</property>
+                    <property name="hexpand">1</property>
+                    <child>
+                      <object class="GtkLabel" id="microphone_description_label">
+                        <property name="visible">1</property>
+                        <property name="margin-bottom">12</property>
+                        <property name="label" translatable="yes">Applications which have been granted 
access to the microphone.</property>
+                        <property name="wrap">1</property>
+                        <property name="max-width-chars">50</property>
+                        <property name="xalign">0</property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkListBox" id="microphone_apps_list_box">
+                        <property name="visible">1</property>
+                        <property name="can-focus">1</property>
+                        <property name="selection-mode">none</property>
+                        <style>
+                          <class name="view"/>
+                          <class name="frame"/>
+                        </style>
+                      </object>
+                    </child>
+                  </object>
+                </child>
+
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">content</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/panels/microphone/gnome-microphone-panel.desktop.in.in 
b/panels/microphone/gnome-microphone-panel.desktop.in.in
new file mode 100644
index 000000000..d819fce22
--- /dev/null
+++ b/panels/microphone/gnome-microphone-panel.desktop.in.in
@@ -0,0 +1,19 @@
+[Desktop Entry]
+Name=Microphone
+Comment=Protect your conversations
+Exec=gnome-control-center microphone
+# FIXME
+# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
+Icon=audio-input-microphone
+Terminal=false
+Type=Application
+NoDisplay=true
+StartupNotify=true
+Categories=GNOME;GTK;Settings;DesktopSettings;X-GNOME-Settings-Panel;X-GNOME-PrivacySettings;
+OnlyShowIn=GNOME;Unity;
+X-GNOME-Bugzilla-Bugzilla=GNOME
+X-GNOME-Bugzilla-Product=gnome-control-center
+X-GNOME-Bugzilla-Component=privacy
+X-GNOME-Bugzilla-Version=@VERSION@
+# Translators: Search terms to find the Privacy panel. Do NOT translate or localize the semicolons! The list 
MUST also end with a semicolon!
+Keywords=screen;lock;diagnostics;crash;private;recent;temporary;tmp;index;name;network;identity;
diff --git a/panels/microphone/meson.build b/panels/microphone/meson.build
new file mode 100644
index 000000000..e0847a4c4
--- /dev/null
+++ b/panels/microphone/meson.build
@@ -0,0 +1,40 @@
+panels_list += cappletname
+desktop = 'gnome-@0@-panel.desktop'.format(cappletname)
+
+desktop_in = configure_file(
+  input: desktop + '.in.in',
+  output: desktop + '.in',
+  configuration: desktop_conf
+)
+
+i18n.merge_file(
+  desktop,
+  type: 'desktop',
+  input: desktop_in,
+  output: desktop,
+  po_dir: po_dir,
+  install: true,
+  install_dir: control_center_desktopdir
+)
+
+sources = files('cc-microphone-panel.c')
+
+resource_data = files('cc-microphone-panel.ui')
+
+sources += gnome.compile_resources(
+  'cc-' + cappletname + '-resources',
+  cappletname + '.gresource.xml',
+  c_name: 'cc_' + cappletname,
+  dependencies: resource_data,
+  export: true
+)
+
+cflags += '-DGNOMELOCALEDIR="@0@"'.format(control_center_localedir)
+
+panels_libs += static_library(
+  cappletname,
+  sources: sources,
+  include_directories: [top_inc, common_inc],
+  dependencies: common_deps,
+  c_args: cflags
+)
diff --git a/panels/microphone/microphone.gresource.xml b/panels/microphone/microphone.gresource.xml
new file mode 100644
index 000000000..f3f938e69
--- /dev/null
+++ b/panels/microphone/microphone.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/gnome/control-center/microphone">
+    <file preprocess="xml-stripblanks">cc-microphone-panel.ui</file>
+  </gresource>
+</gresources>