1 files changed, 209 insertions, 0 deletions
diff --git a/panels/keyboard/cc-alt-chars-key-dialog.c b/panels/keyboard/cc-alt-chars-key-dialog.c
new file mode 100644
index 0000000..c32c6ba
--- /dev/null
+++ b/panels/keyboard/cc-alt-chars-key-dialog.c
@@ -0,0 +1,209 @@
+/* cc-alt-chars-key-dialog.c
+ *
+ * Copyright 2019 Bastien Nocera <hadess@hadess.net>
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "cc-alt-chars-key-dialog.h"
+
+struct _CcAltCharsKeyDialog
+{
+  GtkDialog       parent_instance;
+
+  GSettings      *input_source_settings;
+
+  GtkRadioButton *leftalt_radio;
+  GtkRadioButton *leftsuper_radio;
+  GtkRadioButton *menukey_radio;
+  GtkRadioButton *rightalt_radio;
+  GtkRadioButton *rightctrl_radio;
+  GtkRadioButton *rightsuper_radio;
+};
+
+G_DEFINE_TYPE (CcAltCharsKeyDialog, cc_alt_chars_key_dialog, GTK_TYPE_DIALOG)
+
+static GtkRadioButton *
+get_radio_button_from_xkb_option_name (CcAltCharsKeyDialog *self,
+                                       const gchar         *name)
+{
+  if (g_str_equal (name, "lv3:switch"))
+    return self->rightctrl_radio;
+  else if (g_str_equal (name, "lv3:menu_switch"))
+    return self->menukey_radio;
+  else if (g_str_equal (name, "lv3:lwin_switch"))
+    return self->leftsuper_radio;
+  else if (g_str_equal (name, "lv3:rwin_switch"))
+    return self->rightsuper_radio;
+  else if (g_str_equal (name, "lv3:lalt_switch"))
+    return self->leftalt_radio;
+  else if (g_str_equal (name, "lv3:ralt_switch"))
+    return self->rightalt_radio;
+
+  return NULL;
+}
+
+static const gchar *
+get_xkb_option_name_from_radio_button (CcAltCharsKeyDialog *self,
+                                       GtkRadioButton      *radio)
+{
+  if (radio == self->rightctrl_radio)
+    return "lv3:switch";
+  else if (radio == self->menukey_radio)
+    return "lv3:menu_switch";
+  else if (radio == self->leftsuper_radio)
+    return "lv3:lwin_switch";
+  else if (radio == self->rightsuper_radio)
+    return "lv3:rwin_switch";
+  else if (radio == self->leftalt_radio)
+    return "lv3:lalt_switch";
+  else if (radio == self->rightalt_radio)
+    return "lv3:ralt_switch";
+
+  return NULL;
+}
+
+static void
+update_active_radio (CcAltCharsKeyDialog *self)
+{
+  g_auto(GStrv) options = NULL;
+  guint i;
+
+  options = g_settings_get_strv (self->input_source_settings, "xkb-options");
+
+  for (i = 0; options != NULL && options[i] != NULL; i++)
+    {
+      GtkRadioButton *radio;
+
+      if (!g_str_has_prefix (options[i], "lv3:"))
+        continue;
+
+      radio = get_radio_button_from_xkb_option_name (self, options[i]);
+
+      if (!radio)
+        continue;
+
+      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio), TRUE);
+      return;
+    }
+
+  /* Fallback to Right Alt as default */
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (self->rightalt_radio), TRUE);
+}
+
+static void
+on_active_lv3_changed_cb (GtkRadioButton      *radio,
+                          CcAltCharsKeyDialog *self)
+{
+  g_autoptr(GPtrArray) array = NULL;
+  g_auto(GStrv) options = NULL;
+  gboolean found;
+  guint i;
+
+  if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (radio)))
+    return;
+
+  /* Either replace the existing "lv3:" option in the string
+   * array, or add the option at the end
+   */
+  array = g_ptr_array_new ();
+  options = g_settings_get_strv (self->input_source_settings, "xkb-options");
+  found = FALSE;
+
+  for (i = 0; options != NULL && options[i] != NULL; i++)
+    {
+      if (g_str_has_prefix (options[i], "lv3:"))
+        {
+          g_ptr_array_add (array, (gchar *)get_xkb_option_name_from_radio_button (self, radio));
+          found = TRUE;
+        }
+      else
+        {
+          g_ptr_array_add (array, options[i]);
+        }
+    }
+
+  if (!found)
+    g_ptr_array_add (array, (gchar *)get_xkb_option_name_from_radio_button (self, radio));
+
+  g_ptr_array_add (array, NULL);
+
+  g_settings_set_strv (self->input_source_settings,
+                       "xkb-options",
+                       (const gchar * const *) array->pdata);
+}
+
+static void
+on_xkb_options_changed_cb (CcAltCharsKeyDialog *self)
+{
+  update_active_radio (self);
+}
+
+static void
+cc_alt_chars_key_dialog_finalize (GObject *object)
+{
+  CcAltCharsKeyDialog *self = (CcAltCharsKeyDialog *)object;
+
+  g_clear_object (&self->input_source_settings);
+
+  G_OBJECT_CLASS (cc_alt_chars_key_dialog_parent_class)->finalize (object);
+}
+
+static void
+cc_alt_chars_key_dialog_class_init (CcAltCharsKeyDialogClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = cc_alt_chars_key_dialog_finalize;
+
+  gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/keyboard/cc-alt-chars-key-dialog.ui");
+
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, leftalt_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, leftsuper_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, menukey_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, rightalt_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, rightctrl_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcAltCharsKeyDialog, rightsuper_radio);
+
+  gtk_widget_class_bind_template_callback (widget_class, on_active_lv3_changed_cb);
+}
+
+static void
+cc_alt_chars_key_dialog_init (CcAltCharsKeyDialog *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+
+  self->input_source_settings = g_settings_new ("org.gnome.desktop.input-sources");
+  g_signal_connect_object (self->input_source_settings,
+                           "changed::xkb-options",
+                           G_CALLBACK (on_xkb_options_changed_cb),
+                           self, G_CONNECT_SWAPPED);
+  update_active_radio (self);
+}
+
+CcAltCharsKeyDialog *
+cc_alt_chars_key_dialog_new (GSettings *input_settings)
+{
+  CcAltCharsKeyDialog *self;
+
+  self = g_object_new (CC_TYPE_ALT_CHARS_KEY_DIALOG,
+                       "use-header-bar", 1,
+                       NULL);
+  self->input_source_settings = g_object_ref (input_settings);
+
+  return self;
+}