Add a lock button widget

This is a special-purpose button that can be used together with
GPermission objects to control the sensitivity of system settings.

Suitable permission objects can e.g. be obtained from PolicyKit.

http://bugzilla.gnome.org/show_bug.cgi?id=626457

1 files changed, 277 insertions, 0 deletions

diff --git a/tests/testlockbutton.c b/tests/testlockbutton.c
new file mode 100644
index 0000000000..f6bbbd4b71
--- /dev/null
+++ b/tests/testlockbutton.c
@@ -0,0 +1,277 @@
+/* testlockbutton.c
+ * Copyright (C) 2011 Red Hat, Inc.
+ * Authors: Matthias Clasen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gtk/gtk.h>
+#include <gio/gio.h>
+
+/* a fake permission implementation */
+
+#define G_TYPE_TEST_PERMISSION      (g_test_permission_get_type ())
+#define G_TEST_PERMISSION(inst)     (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+                                     G_TYPE_TEST_PERMISSION,             \
+                                     GTestPermission))
+#define G_IS_TEST_PERMISSION(inst)  (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+                                     G_TYPE_TEST_PERMISSION))
+
+typedef struct _GTestPermission GTestPermission;
+typedef struct _GTestPermissionClass GTestPermissionClass;
+
+struct _GTestPermission
+{
+  GPermission parent;
+
+  gboolean success;
+};
+
+struct _GTestPermissionClass
+{
+  GPermissionClass parent_class;
+};
+
+G_DEFINE_TYPE (GTestPermission, g_test_permission, G_TYPE_PERMISSION)
+
+static void
+g_test_permission_init (GTestPermission *test)
+{
+}
+
+static gboolean
+update_allowed (GTestPermission  *test,
+                gboolean          allowed,
+                GError          **error)
+{
+  gboolean can_acquire, can_release;
+
+  g_object_get (test,
+                "can-acquire", &can_acquire,
+                "can-release", &can_release,
+                NULL);
+
+  if (test->success)
+    {
+      g_permission_impl_update (G_PERMISSION (test),
+                                allowed, can_acquire, can_release);
+      return TRUE;
+    }
+  else
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR, G_IO_ERROR_FAILED, "Sorry, no luck");
+      return FALSE;
+    }
+}
+
+static gboolean
+acquire (GPermission   *permission,
+         GCancellable  *cancellable,
+         GError       **error)
+{
+  GTestPermission *test = G_TEST_PERMISSION (permission);
+  return update_allowed (test, TRUE, error);
+}
+
+static void
+acquire_async (GPermission         *permission,
+               GCancellable        *cancellable,
+               GAsyncReadyCallback  callback,
+               gpointer             user_data)
+{
+  GSimpleAsyncResult *result;
+  g_print ("GTestPermission::acquire_async\n");
+  result = g_simple_async_result_new ((GObject*)permission,
+                                      callback,
+                                      user_data,
+                                      acquire_async);
+  g_simple_async_result_complete (result);
+  g_object_unref (result);
+}
+
+gboolean
+acquire_finish (GPermission   *permission,
+                GAsyncResult  *result,
+                GError       **error)
+{
+  GTestPermission *test = G_TEST_PERMISSION (permission);
+  g_print ("GTestPermission::acquire_finish\n");
+  return update_allowed (test, TRUE, error);
+}
+
+static gboolean
+release (GPermission   *permission,
+         GCancellable  *cancellable,
+         GError       **error)
+{
+  GTestPermission *test = G_TEST_PERMISSION (permission);
+  return update_allowed (test, FALSE, error);
+}
+
+static void
+release_async (GPermission         *permission,
+               GCancellable        *cancellable,
+               GAsyncReadyCallback  callback,
+               gpointer             user_data)
+{
+  GSimpleAsyncResult *result;
+  result = g_simple_async_result_new ((GObject*)permission,
+                                      callback,
+                                      user_data,
+                                      acquire_async);
+  g_simple_async_result_complete (result);
+  g_object_unref (result);
+}
+
+gboolean
+release_finish (GPermission   *permission,
+                GAsyncResult  *result,
+                GError       **error)
+{
+  GTestPermission *test = G_TEST_PERMISSION (permission);
+  return update_allowed (test, FALSE, error);
+}
+
+static void
+g_test_permission_class_init (GTestPermissionClass *class)
+{
+  GPermissionClass *permission_class = G_PERMISSION_CLASS (class);
+
+  permission_class->acquire = acquire;
+  permission_class->acquire_async = acquire_async;
+  permission_class->acquire_finish = acquire_finish;
+
+  permission_class->release = release;
+  permission_class->release_async = release_async;
+  permission_class->release_finish = release_finish;
+}
+
+void
+g_test_permission_set_success (GTestPermission *permission,
+                               gboolean         success)
+{
+  permission->success = success;
+}
+
+static GtkWidget *allowed_button;
+static GtkWidget *can_acquire_button;
+static GtkWidget *can_release_button;
+static GtkWidget *success_button;
+
+static void
+update_clicked (GtkButton *button, GtkLockButton *lockbutton)
+{
+  GPermission *permission;
+  gboolean allowed, can_acquire, can_release;
+  gboolean success;
+
+  permission = gtk_lock_button_get_permission (lockbutton);
+
+  allowed = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (allowed_button));
+  can_acquire = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (can_acquire_button));
+  can_release = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (can_release_button));
+  success = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (success_button));
+  g_permission_impl_update (permission, allowed, can_acquire, can_release);
+  g_test_permission_set_success (G_TEST_PERMISSION (permission), success);
+}
+
+static GtkWidget *content;
+
+static void
+permission_changed (GPermission *permission,
+                    GParamSpec  *pspec)
+{
+  gboolean allowed, can_acquire, can_release;
+
+  g_object_get (permission,
+                "allowed", &allowed,
+                "can-acquire", &can_acquire,
+                "can-release", &can_release,
+                NULL);
+
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (allowed_button), allowed);
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (can_acquire_button), can_acquire);
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (can_release_button), can_release);
+
+  gtk_widget_set_sensitive (content, allowed);
+}
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *window;
+  GtkWidget *dialog;
+  GtkWidget *button;
+  GtkWidget *box;
+  GtkWidget *bbox;
+  GtkWidget *update;
+  GPermission *permission;
+
+  gtk_init (&argc, &argv);
+
+  permission = g_object_new (G_TYPE_TEST_PERMISSION, NULL);
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
+  gtk_container_set_border_width (GTK_CONTAINER (window), 12);
+
+  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (window), box);
+
+  allowed_button = gtk_check_button_new_with_label ("Allowed");
+  gtk_container_add (GTK_CONTAINER (box), allowed_button);
+  can_acquire_button = gtk_check_button_new_with_label ("Can acquire");
+  gtk_container_add (GTK_CONTAINER (box), can_acquire_button);
+  can_release_button = gtk_check_button_new_with_label ("Can release");
+  gtk_container_add (GTK_CONTAINER (box), can_release_button);
+  success_button = gtk_check_button_new_with_label ("Will succeed");
+  gtk_container_add (GTK_CONTAINER (box), success_button);
+  update = gtk_button_new_with_label ("Update");
+  gtk_container_add (GTK_CONTAINER (box), update);
+  g_signal_connect (permission, "notify",
+                    G_CALLBACK (permission_changed), NULL);
+
+  button = gtk_lock_button_new (permission);
+
+  g_signal_connect (update, "clicked",
+                    G_CALLBACK (update_clicked), button);
+
+  dialog = gtk_dialog_new_with_buttons ("Dialog", NULL, 0,
+                                        "Close", GTK_RESPONSE_CLOSE,
+                                        "Some other action", GTK_RESPONSE_APPLY,
+                                        NULL);
+  gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+
+  bbox = gtk_dialog_get_action_area (GTK_DIALOG (dialog));
+  gtk_container_add (GTK_CONTAINER (bbox), button);
+  gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (bbox), button, TRUE);
+  gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (bbox), button, TRUE);
+
+  content = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (content), gtk_check_button_new_with_label ("Control 1"));
+  gtk_container_add (GTK_CONTAINER (content), gtk_check_button_new_with_label ("Control 2"));
+  gtk_widget_set_sensitive (content, FALSE);
+
+  gtk_container_add (GTK_CONTAINER (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), content);
+
+  gtk_widget_show_all (window);
+  gtk_widget_show_all (dialog);
+
+  gtk_main ();
+
+  return 0;
+}