1 files changed, 144 insertions, 0 deletions
diff --git a/panels/universal-access/cc-visual-alerts-dialog.c b/panels/universal-access/cc-visual-alerts-dialog.c
new file mode 100644
index 0000000..398753d
--- /dev/null
+++ b/panels/universal-access/cc-visual-alerts-dialog.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2020 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 2.1 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 Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <gdesktop-enums.h>
+
+#include "cc-visual-alerts-dialog.h"
+
+#define WM_SETTINGS                  "org.gnome.desktop.wm.preferences"
+#define KEY_VISUAL_BELL_ENABLED      "visual-bell"
+#define KEY_VISUAL_BELL_TYPE         "visual-bell-type"
+
+struct _CcVisualAlertsDialog
+{
+  GtkDialog parent;
+
+  GtkSwitch *enable_switch;
+  GtkCheckButton *screen_radio;
+  GtkButton *test_button;
+  GtkCheckButton *window_radio;
+
+  GSettings *wm_settings;
+};
+
+G_DEFINE_TYPE (CcVisualAlertsDialog, cc_visual_alerts_dialog, GTK_TYPE_DIALOG);
+
+static void
+visual_bell_type_notify_cb (CcVisualAlertsDialog *self)
+{
+  GtkCheckButton *widget;
+  GDesktopVisualBellType type;
+
+  type = g_settings_get_enum (self->wm_settings, KEY_VISUAL_BELL_TYPE);
+
+  if (type == G_DESKTOP_VISUAL_BELL_FRAME_FLASH)
+    widget = self->window_radio;
+  else
+    widget = self->screen_radio;
+
+  gtk_check_button_set_active (widget, TRUE);
+}
+
+static void
+visual_bell_type_toggle_cb (CcVisualAlertsDialog *self)
+{
+  gboolean frame_flash;
+  GDesktopVisualBellType type;
+
+  frame_flash = gtk_check_button_get_active (GTK_CHECK_BUTTON (self->window_radio));
+
+  if (frame_flash)
+    type = G_DESKTOP_VISUAL_BELL_FRAME_FLASH;
+  else
+    type = G_DESKTOP_VISUAL_BELL_FULLSCREEN_FLASH;
+  g_settings_set_enum (self->wm_settings, KEY_VISUAL_BELL_TYPE, type);
+}
+
+static void
+test_flash (CcVisualAlertsDialog *self)
+{
+  GtkNative *native = gtk_widget_get_native (GTK_WIDGET (self));
+  GdkSurface *surface = gtk_native_get_surface (native);
+
+  gdk_surface_beep (surface);
+}
+
+static void
+cc_visual_alerts_dialog_dispose (GObject *object)
+{
+  CcVisualAlertsDialog *self = CC_VISUAL_ALERTS_DIALOG (object);
+
+  g_clear_object (&self->wm_settings);
+
+  G_OBJECT_CLASS (cc_visual_alerts_dialog_parent_class)->dispose (object);
+}
+
+static void
+cc_visual_alerts_dialog_class_init (CcVisualAlertsDialogClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->dispose = cc_visual_alerts_dialog_dispose;
+
+  gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/universal-access/cc-visual-alerts-dialog.ui");
+
+  gtk_widget_class_bind_template_child (widget_class, CcVisualAlertsDialog, enable_switch);
+  gtk_widget_class_bind_template_child (widget_class, CcVisualAlertsDialog, screen_radio);
+  gtk_widget_class_bind_template_child (widget_class, CcVisualAlertsDialog, test_button);
+  gtk_widget_class_bind_template_child (widget_class, CcVisualAlertsDialog, window_radio);
+}
+
+static void
+cc_visual_alerts_dialog_init (CcVisualAlertsDialog *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+
+  self->wm_settings = g_settings_new (WM_SETTINGS);
+
+  /* set the initial visual bell values */
+  visual_bell_type_notify_cb (self);
+
+  /* and listen */
+  g_settings_bind (self->wm_settings, KEY_VISUAL_BELL_ENABLED,
+                   self->enable_switch, "active",
+                   G_SETTINGS_BIND_DEFAULT);
+
+  g_object_bind_property (self->enable_switch, "active",
+                          self->window_radio, "sensitive",
+                          G_BINDING_SYNC_CREATE);
+
+  g_object_bind_property (self->enable_switch, "active",
+                          self->screen_radio, "sensitive",
+                          G_BINDING_SYNC_CREATE);
+  g_signal_connect_object (self->wm_settings, "changed::" KEY_VISUAL_BELL_TYPE,
+                           G_CALLBACK (visual_bell_type_notify_cb), self, G_CONNECT_SWAPPED);
+  g_signal_connect_object (self->window_radio,
+                           "toggled", G_CALLBACK (visual_bell_type_toggle_cb), self, G_CONNECT_SWAPPED);
+
+  g_signal_connect_object (self->test_button,
+                           "clicked", G_CALLBACK (test_flash), self, G_CONNECT_SWAPPED);
+}
+
+CcVisualAlertsDialog *
+cc_visual_alerts_dialog_new (void)
+{
+  return g_object_new (cc_visual_alerts_dialog_get_type (),
+                       "use-header-bar", TRUE,
+                       NULL);
+}