Get rid of compiler warnings

If we can, we should rejig the code to avoid declaring unused arguments
and variables; if we can't, we can use G_GNUC_UNUSED to eliminate the
warning.

src/access.c

@@ -110,12 +110,9 @@ send_response (AccessDialogHandle *handle)
 }
 
 static void
-access_dialog_response (GtkWidget *widget,
-                        int response,
-                        gpointer user_data)
+access_dialog_response (AccessDialogHandle *handle,
+                        int response)
 {
-  AccessDialogHandle *handle = user_data;
-
   switch (response)
     {
     default:
@@ -138,9 +135,8 @@ access_dialog_response (GtkWidget *widget,
 }
 
 static gboolean
-handle_close (XdpImplRequest *object,
-              GDBusMethodInvocation *invocation,
-              AccessDialogHandle *handle)
+handle_close (AccessDialogHandle *handle,
+              GDBusMethodInvocation *invocation G_GNUC_UNUSED)
 {
   GVariantBuilder opt_builder;
 
@@ -181,7 +177,7 @@ add_choice (GtkWidget *box,
     {
       GtkWidget *label;
       GtkWidget *group = NULL;
-      int i;
+      gsize i;
 
       label = gtk_label_new (name);
       gtk_widget_show (label);
@@ -315,7 +311,7 @@ handle_access_dialog (XdpImplAccess *object,
 
   if (choices)
     {
-      int i;
+      gsize i;
 
       choice_table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
       for (i = 0; i < g_variant_n_children (choices); i++)
@@ -359,9 +355,9 @@ G_GNUC_END_IGNORE_DEPRECATIONS
   handle->external_parent = external_parent;
   handle->choices = choice_table;
 
-  g_signal_connect (request, "handle-close", G_CALLBACK (handle_close), handle);
+  g_signal_connect_swapped (request, "handle-close", G_CALLBACK (handle_close), handle);
 
-  g_signal_connect (dialog, "response", G_CALLBACK (access_dialog_response), handle);
+  g_signal_connect_swapped (dialog, "response", G_CALLBACK (access_dialog_response), handle);
 
   gtk_widget_realize (dialog);
 

src/account.c

@@ -84,15 +84,12 @@ send_response (AccountDialogHandle *handle)
 }
 
 static void
-account_dialog_done (GtkWidget *widget,
+account_dialog_done (AccountDialogHandle *handle,
                      int response,
                      const char *user_name,
                      const char *real_name,
-                     const char *icon_file,
-                     gpointer user_data)
+                     const char *icon_file)
 {
-  AccountDialogHandle *handle = user_data;
-
   g_clear_pointer (&handle->user_name, g_free);
   g_clear_pointer (&handle->real_name, g_free);
   g_clear_pointer (&handle->icon_uri, g_free);
@@ -123,9 +120,8 @@ account_dialog_done (GtkWidget *widget,
 }
 
 static gboolean
-handle_close (XdpImplRequest *object,
-              GDBusMethodInvocation *invocation,
-              AccountDialogHandle *handle)
+handle_close (AccountDialogHandle *handle,
+              GDBusMethodInvocation *invocation G_GNUC_UNUSED)
 {
   GVariantBuilder opt_builder;
 
@@ -206,9 +202,9 @@ handle_get_user_information (XdpImplAccount *object,
   handle->real_name = g_strdup (real_name);
   handle->icon_uri = g_filename_to_uri (icon_file, NULL, NULL);
 
-  g_signal_connect (request, "handle-close", G_CALLBACK (handle_close), handle);
+  g_signal_connect_swapped (request, "handle-close", G_CALLBACK (handle_close), handle);
 
-  g_signal_connect (dialog, "done", G_CALLBACK (account_dialog_done), handle);
+  g_signal_connect_swapped (dialog, "done", G_CALLBACK (account_dialog_done), handle);
 
   gtk_widget_realize (dialog);
 

src/accountdialog.c

@@ -58,7 +58,8 @@ account_dialog_finalize (GObject *object)
 }
 
 static gboolean
-account_dialog_delete_event (GtkWidget *dialog, GdkEventAny *event)
+account_dialog_delete_event (GtkWidget *dialog,
+                             GdkEventAny *event G_GNUC_UNUSED)
 {
   gtk_widget_hide (dialog);
 

src/appchooser.c

@@ -228,7 +228,7 @@ handle_choose_application (XdpImplAppChooser *object,
 }
 
 static gboolean
-handle_update_choices (XdpImplAppChooser *object,
+handle_update_choices (XdpImplAppChooser *object G_GNUC_UNUSED,
                        GDBusMethodInvocation *invocation,
                        const char *arg_handle,
                        const char **choices)

src/appchooserdialog.c

@@ -76,7 +76,7 @@ G_DEFINE_TYPE (AppChooserDialog, app_chooser_dialog, GTK_TYPE_WINDOW)
 static void
 update_header (GtkListBoxRow *row,
                GtkListBoxRow *before,
-               gpointer       data)
+               gpointer       data G_GNUC_UNUSED)
 {
   if (before != NULL &&
       gtk_list_box_row_get_header (row) == NULL)
@@ -125,7 +125,7 @@ close_dialog (AppChooserDialog *dialog,
 static void
 show_more (AppChooserDialog *dialog)
 {
-  int i;
+  guint i;
 
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (dialog->scrolled_window),
                                   GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
@@ -147,9 +147,8 @@ show_more (AppChooserDialog *dialog)
 }
 
 static void
-row_activated (GtkListBox *list,
-               GtkWidget *row,
-               AppChooserDialog *dialog)
+row_activated (AppChooserDialog *dialog,
+               GtkWidget *row)
 {
   GAppInfo *info = NULL;
 
@@ -165,24 +164,21 @@ row_activated (GtkListBox *list,
 }
 
 static void
-row_selected (GtkListBox *list,
-              GtkWidget *row,
-              AppChooserDialog *dialog)
+row_selected (AppChooserDialog *dialog,
+              GtkWidget *row)
 {
   gtk_widget_set_sensitive (dialog->open_button, TRUE);
   dialog->selected_row = row;
 }
 
 static void
-cancel_clicked (GtkWidget *button,
-                AppChooserDialog *dialog)
+cancel_clicked (AppChooserDialog *dialog)
 {
   close_dialog (dialog, NULL);
 }
 
 static void
-open_clicked (GtkWidget *button,
-              AppChooserDialog *dialog)
+open_clicked (AppChooserDialog *dialog)
 {
   GAppInfo *info = NULL;
 
@@ -230,14 +226,14 @@ launch_software (AppChooserDialog *dialog)
 }
 
 static void
-find_in_software (GtkWidget *button,
-                  AppChooserDialog *dialog)
+find_in_software (AppChooserDialog *dialog)
 {
   launch_software (dialog);
 }
 
 static gboolean
-app_chooser_delete_event (GtkWidget *dialog, GdkEventAny *event)
+app_chooser_delete_event (GtkWidget *dialog,
+                          GdkEventAny *event G_GNUC_UNUSED)
 {
   close_dialog (APP_CHOOSER_DIALOG (dialog), NULL);
 
@@ -319,7 +315,7 @@ static void
 ensure_default_in_initial_list (const char **choices,
                                 const char  *default_id)
 {
-  int i;
+  guint i;
   guint n_choices;
 
   if (default_id == NULL)
@@ -350,11 +346,10 @@ ensure_default_in_initial_list (const char **choices,
 }
 
 static void
-more_pressed (GtkGestureMultiPress *gesture,
+more_pressed (AppChooserDialog *dialog,
               int n_press,
-              double x,
-              double y,
-              AppChooserDialog *dialog)
+              double x G_GNUC_UNUSED,
+              double y)
 {
   if (n_press != 1)
     return;
@@ -370,8 +365,8 @@ app_chooser_dialog_new (const char **choices,
                         const char *location)
 {
   AppChooserDialog *dialog;
-  int n_choices;
-  int i;
+  guint n_choices;
+  guint i;
   g_autofree char *short_location = shorten_location (location);
 
   dialog = g_object_new (app_chooser_dialog_get_type (), NULL);
@@ -446,7 +441,7 @@ app_chooser_dialog_new (const char **choices,
           gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_BUBBLE);
           gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_PRIMARY);
 
-          g_signal_connect (gesture, "pressed", G_CALLBACK (more_pressed), dialog);
+          g_signal_connect_swapped (gesture, "pressed", G_CALLBACK (more_pressed), dialog);
 
           gtk_list_box_row_set_selectable (GTK_LIST_BOX_ROW (row), FALSE);
           image = gtk_image_new_from_icon_name ("view-more-symbolic", GTK_ICON_SIZE_BUTTON);
@@ -467,7 +462,7 @@ void
 app_chooser_dialog_update_choices (AppChooserDialog  *dialog,
                                    const char       **choices)
 {
-  int i;
+  guint i;
   GPtrArray *new_choices;
 
   new_choices = g_ptr_array_new ();

src/appchooserdialog.ui

@@ -13,7 +13,7 @@
             <property name="visible">1</property>
             <property name="label" translatable="yes">_Cancel</property>
             <property name="use-underline">1</property>
-            <signal name="clicked" handler="cancel_clicked"/>
+            <signal name="clicked" handler="cancel_clicked" swapped="yes"/>
           </object>
         </child>
         <child>
@@ -23,7 +23,7 @@
             <property name="label" translatable="yes">_Open</property>
             <property name="use-underline">1</property>
             <property name="can-default">1</property>
-            <signal name="clicked" handler="open_clicked"/>
+            <signal name="clicked" handler="open_clicked" swapped="yes"/>
             <style>
               <class name="suggested-action"/>
             </style>
@@ -67,8 +67,8 @@
                           <class name="frame"/>
                           <class name="view"/>
                         </style>
-                        <signal name="row-activated" handler="row_activated"/>
-                        <signal name="row-selected" handler="row_selected"/>
+                        <signal name="row-activated" handler="row_activated" swapped="yes"/>
+                        <signal name="row-selected" handler="row_selected" swapped="yes"/>
                         <property name="selection-mode">single</property>
                         <property name="activate-on-single-click">0</property>
                         <property name="visible">1</property>
@@ -140,7 +140,7 @@
                         <style>
                           <class name="suggested-action"/>
                         </style>
-                        <signal name="clicked" handler="find_in_software"/>
+                        <signal name="clicked" handler="find_in_software" swapped="yes"/>
                         <child>
                           <object class="GtkBox">
                             <property name="visible">1</property>

src/dynamic-launcher.c

@@ -137,12 +137,9 @@ send_prepare_install_response (InstallDialogHandle *handle)
 }
 
 static void
-handle_prepare_install_response (GtkDialog *dialog,
-                                 gint       response,
-                                 gpointer   data)
+handle_prepare_install_response (InstallDialogHandle *handle,
+                                 int response)
 {
-  InstallDialogHandle *handle = data;
-
   switch (response)
     {
     default:
@@ -329,7 +326,7 @@ handle_prepare_install (XdpImplDynamicLauncher *object,
 
   g_signal_connect (request, "handle-close", G_CALLBACK (handle_close), handle);
 
-  g_signal_connect (dialog, "response", G_CALLBACK (handle_prepare_install_response), handle);
+  g_signal_connect_swapped (dialog, "response", G_CALLBACK (handle_prepare_install_response), handle);
 
   gtk_widget_realize (dialog);
 
@@ -352,7 +349,7 @@ static gboolean
 handle_request_install_token (XdpImplDynamicLauncher *object,
                               GDBusMethodInvocation  *invocation,
                               const char             *arg_app_id,
-                              GVariant               *arg_options)
+                              GVariant               *arg_options G_GNUC_UNUSED)
 {
   /* Generally these should be allowed in each desktop specific x-d-p backend,
    * but add them here as well as a fallback.

src/email.c

@@ -124,7 +124,7 @@ handle_compose_email (XdpImplEmail *object,
                       GDBusMethodInvocation *invocation,
                       const char *arg_handle,
                       const char *arg_app_id,
-                      const char *arg_parent_window,
+                      const char *arg_parent_window G_GNUC_UNUSED,
                       GVariant *arg_options)
 {
   g_autoptr(Request) request = NULL;

src/externalwindow-wayland.c

@@ -102,7 +102,7 @@ external_window_wayland_dispose (GObject *object)
 }
 
 static void
-external_window_wayland_init (ExternalWindowWayland *external_window_wayland)
+external_window_wayland_init (ExternalWindowWayland *self G_GNUC_UNUSED)
 {
 }
 

src/externalwindow-x11.c

@@ -120,7 +120,7 @@ external_window_x11_dispose (GObject *object)
 }
 
 static void
-external_window_x11_init (ExternalWindowX11 *external_window_x11)
+external_window_x11_init (ExternalWindowX11 *self G_GNUC_UNUSED)
 {
 }
 

src/externalwindow.c

@@ -139,7 +139,7 @@ external_window_get_property (GObject    *object,
 }
 
 static void
-external_window_init (ExternalWindow *external_window)
+external_window_init (ExternalWindow *self G_GNUC_UNUSED)
 {
 }
 

src/fdonotification.c

@@ -89,12 +89,12 @@ fdo_find_notification_by_notify_id (guint32 id)
 
 static void
 notify_signal (GDBusConnection *connection,
-               const char *sender_name,
-               const char *object_path,
-               const char *interface_name,
+               const char *sender_name G_GNUC_UNUSED,
+               const char *object_path G_GNUC_UNUSED,
+               const char *interface_name G_GNUC_UNUSED,
                const char *signal_name,
                GVariant *parameters,
-               gpointer user_data)
+               gpointer user_data G_GNUC_UNUSED)
 {
   guint32 id = 0;
   const char *action = NULL;