/* gcal-multi-choice.c
 *
 * GTK - The GIMP Toolkit
 *
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

#define G_LOG_DOMAIN "GcalMultiChoice"

#include "config.h"

#include "gcal-multi-choice.h"

struct _GcalMultiChoice
{
  GtkWidget                       parent;

  GtkWidget                      *down_button;
  GtkWidget                      *button;
  GtkStack                       *stack;
  GtkWidget                      *up_button;
  GtkWidget                      *label1;
  GtkWidget                      *label2;

  gint                            value;
  gint                            min_value;
  gint                            max_value;
  gchar                          *category;
  gchar                          *prev_button_tooltip_text;
  gchar                          *next_button_tooltip_text;

  GtkWidget                     **choices;
  gint                            n_choices;
  GtkWidget                      *active;
  GtkPopoverBin                  *popover_bin;

  GcalMultiChoiceFormatCallback   format_cb;
  gpointer                        format_data;
  GDestroyNotify                  format_destroy;
  GcalMultiChoiceValueCallback    prev_cb;
  GcalMultiChoiceValueCallback    next_cb;
};

enum
{
  PROP_0,
  PROP_VALUE,
  PROP_MIN_VALUE,
  PROP_MAX_VALUE,
  PROP_CHOICES,
  PROP_POPOVER,
  PROP_CATEGORY,
  PROP_PREVIOUS_BUTTON_TOOLTIP,
  PROP_NEXT_BUTTON_TOOLTIP,
  N_PROPS,
};

enum
{
  WRAPPED,
  ACTIVATE,
  LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0, };
static GParamSpec *properties[N_PROPS] = { NULL, };

static void gcal_multi_choice_accessible_init (GtkAccessibleInterface *iface);

static void gcal_multi_choice_accessible_range_init (GtkAccessibleRangeInterface *iface);

G_DEFINE_FINAL_TYPE_WITH_CODE (GcalMultiChoice, gcal_multi_choice, GTK_TYPE_WIDGET,
                               G_IMPLEMENT_INTERFACE (GTK_TYPE_ACCESSIBLE, gcal_multi_choice_accessible_init)
                               G_IMPLEMENT_INTERFACE (GTK_TYPE_ACCESSIBLE_RANGE, gcal_multi_choice_accessible_range_init))

/*
 * Auxiliary methods
 */

static gchar *
get_value_string (GcalMultiChoice *self,
                  gint             value)
{
  if (self->format_cb)
    return self->format_cb (self, value, self->format_data);
  else if (0 <= value && value < self->n_choices)
    return g_strdup (gtk_label_get_label (GTK_LABEL (self->choices[value])));
  else
    return g_strdup_printf ("%d", value);
}

static void
apply_value (GcalMultiChoice        *self,
             GtkStackTransitionType  transition)
{
  GtkWidget *label;
  const gchar *name;
  gchar *text;

  if (gtk_stack_get_visible_child (GTK_STACK (self->stack)) == self->label1)
    {
      name = "label2";
      label = self->label2;
    }
  else
    {
      name = "label1";
      label = self->label1;
    }

  text = get_value_string (self, self->value);
  gtk_label_set_text (GTK_LABEL (label), text);
  gtk_accessible_update_property (GTK_ACCESSIBLE (self),
                                  GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, text,
                                  -1);
  g_free (text);

  gtk_stack_set_visible_child_full (GTK_STACK (self->stack), name, transition);
}

static void
set_value (GcalMultiChoice         *self,
           gint                     value,
           GtkStackTransitionType   transition)
{
  value = CLAMP (value, self->min_value, self->max_value);

  if (self->value == value)
    return;

  self->value = value;

  apply_value (self, transition);

  gtk_accessible_update_property (GTK_ACCESSIBLE (self),
                                  GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, (gdouble) self->max_value,
                                  GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, (gdouble) self->min_value,
                                  GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, (gdouble) self->value,
                                  -1);

  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_VALUE]);
}

static void
go_up (GcalMultiChoice *self)
{
  gboolean wrapped = FALSE;
  gint value;

  value = self->next_cb ? self->next_cb (self->value) : self->value + 1;
  g_assert_cmpint (value, > ,self->value);

  if (value > self->max_value)
    {
      value = self->min_value;
      wrapped = TRUE;
    }

  set_value (self, value, GTK_STACK_TRANSITION_TYPE_NONE);

  if (wrapped)
    g_signal_emit (self, signals[WRAPPED], 0);
}

static void
go_down (GcalMultiChoice *self)
{
  gint value;
  gboolean wrapped = FALSE;

  value = self->prev_cb ? self->prev_cb (self->value) : self->value - 1;
  g_assert_cmpint (value, < , self->value);

  if (value < self->min_value)
    {
      value = self->max_value;
      wrapped = TRUE;
    }

  set_value (self, value, GTK_STACK_TRANSITION_TYPE_NONE);

  if (wrapped)
    g_signal_emit (self, signals[WRAPPED], 0);
}

static void
update_sensitivity (GcalMultiChoice *self)
{
  GtkWidget *popover = gtk_popover_bin_get_popover (self->popover_bin);
  GtkAccessibleTristate state;

  gtk_widget_set_can_target (self->button, !!popover);

  state = !!popover ? GTK_ACCESSIBLE_TRISTATE_TRUE : GTK_ACCESSIBLE_TRISTATE_FALSE;
  gtk_accessible_update_property (GTK_ACCESSIBLE (self),
                                  GTK_ACCESSIBLE_PROPERTY_HAS_POPUP, state,
                                  -1);
  if (popover != NULL)
    gtk_accessible_update_relation (GTK_ACCESSIBLE (self),
                                    GTK_ACCESSIBLE_RELATION_CONTROLS, popover, NULL,
                                    -1);
  else
    gtk_accessible_reset_relation (GTK_ACCESSIBLE (self),
                                   GTK_ACCESSIBLE_RELATION_CONTROLS);
}

static void
button_clicked_cb (GtkWidget       *button,
                   GcalMultiChoice *self)
{
  GtkStateFlags state_flags;

  state_flags = gtk_widget_get_state_flags (button);

  if (button == self->down_button)
    go_down (self);
  else if (button == self->up_button)
    go_up (self);
  else
    g_assert_not_reached ();

  if (!gtk_widget_grab_focus (GTK_WIDGET (self)))
    g_assert_not_reached ();

  gtk_widget_set_state_flags (button, state_flags, TRUE);
}

static gboolean
key_pressed_cb (GcalMultiChoice       *self,
                guint                  keyval,
                guint                  keycode,
                GdkModifierType        state,
                GtkEventControllerKey *event_controller)
{
  gboolean is_active;
  gint old_value;

  g_assert (GCAL_IS_MULTI_CHOICE (self));
  g_assert (GTK_IS_EVENT_CONTROLLER_KEY (event_controller));

  switch (keyval)
    {
    case GDK_KEY_space:
    case GDK_KEY_KP_Space:
    case GDK_KEY_Return:
    case GDK_KEY_ISO_Enter:
    case GDK_KEY_KP_Enter:
      is_active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (self->button));
      if (gtk_popover_bin_get_popover (self->popover_bin))
        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (self->button), !is_active);
      return TRUE;

    case GDK_KEY_Up:
    case GDK_KEY_KP_Up:
      old_value = self->value;
      go_up (self);
      if (old_value == self->value)
        gtk_widget_error_bell (GTK_WIDGET (self));
      return TRUE;

    case GDK_KEY_Down:
    case GDK_KEY_KP_Down:
      old_value = self->value;
      go_down (self);
      if (old_value == self->value)
        gtk_widget_error_bell (GTK_WIDGET (self));
      return TRUE;
    }

  return FALSE;
}

static void
button_toggled_cb (GcalMultiChoice *self)
{
  const gboolean active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (self->button));

  if (gtk_popover_bin_get_popover (self->popover_bin))
    {
      if (active)
        {
          gtk_popover_bin_popup (self->popover_bin);
          gtk_accessible_update_state (GTK_ACCESSIBLE (self),
                                       GTK_ACCESSIBLE_STATE_EXPANDED, TRUE,
                                       -1);
        }
      else
        {
          gtk_accessible_reset_state (GTK_ACCESSIBLE (self),
                                      GTK_ACCESSIBLE_STATE_EXPANDED);
        }
    }
}

static gboolean
menu_deactivate_cb (GcalMultiChoice *self)
{
  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (self->button), FALSE);

  return TRUE;
}

static void
button_state_flags_changed_cb (GcalMultiChoice *self,
                               GtkStateFlags    previous_state_flags)
{
  GtkStateFlags state_flags;

  g_assert (GCAL_IS_MULTI_CHOICE (self));

  state_flags = gtk_widget_get_state_flags (self->button);

  gtk_widget_set_state_flags (GTK_WIDGET (self), state_flags, TRUE);
}

/*
 * GObject overrides
 */

static void
gcal_multi_choice_dispose (GObject *object)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (object);

  g_clear_pointer ((GtkWidget **) &self->popover_bin, gtk_widget_unparent);

  g_clear_pointer (&self->choices, g_free);
  g_clear_pointer (&self->category, g_free);
  g_clear_pointer (&self->prev_button_tooltip_text, g_free);
  g_clear_pointer (&self->next_button_tooltip_text, g_free);

  if (self->format_destroy)
    g_clear_pointer (&self->format_data, self->format_destroy);

  G_OBJECT_CLASS (gcal_multi_choice_parent_class)->dispose (object);
}

static void
gcal_multi_choice_get_property (GObject    *object,
                                guint       property_id,
                                GValue     *value,
                                GParamSpec *pspec)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (object);

  switch (property_id)
    {
    case PROP_VALUE:
      g_value_set_int (value, self->value);
      break;

    case PROP_MIN_VALUE:
      g_value_set_int (value, self->min_value);
      break;

    case PROP_MAX_VALUE:
      g_value_set_int (value, self->max_value);
      break;

    case PROP_POPOVER:
      g_value_set_object (value, gcal_multi_choice_get_popover (self));
      break;

    case PROP_CATEGORY:
      g_value_set_string (value, gcal_multi_choice_get_category (self));
      break;

    case PROP_PREVIOUS_BUTTON_TOOLTIP:
      g_value_set_string (value, self->prev_button_tooltip_text);
      break;

    case PROP_NEXT_BUTTON_TOOLTIP:
      g_value_set_string (value, self->next_button_tooltip_text);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
    }
}

static void
gcal_multi_choice_set_property (GObject      *object,
                                guint         property_id,
                                const GValue *value,
                                GParamSpec   *pspec)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (object);

  switch (property_id)
    {
    case PROP_VALUE:
      gcal_multi_choice_set_value (self, g_value_get_int (value));
      break;

    case PROP_MIN_VALUE:
      self->min_value = g_value_get_int (value);
      g_object_notify_by_pspec (object, properties[PROP_MIN_VALUE]);
      gcal_multi_choice_set_value (self, self->value);
      break;

    case PROP_MAX_VALUE:
      self->max_value = g_value_get_int (value);
      g_object_notify_by_pspec (object, properties[PROP_MAX_VALUE]);
      gcal_multi_choice_set_value (self, self->value);
      break;

    case PROP_CHOICES:
      gcal_multi_choice_set_choices (self, (const gchar **)g_value_get_boxed (value));
      break;

    case PROP_POPOVER:
      gcal_multi_choice_set_popover (self, g_value_get_object (value));
      break;

    case PROP_CATEGORY:
      gcal_multi_choice_set_category (self, g_value_get_string (value));
      break;

    case PROP_PREVIOUS_BUTTON_TOOLTIP:
      if (g_set_str (&self->prev_button_tooltip_text, g_value_get_string (value)))
        g_object_notify_by_pspec (object, properties[PROP_PREVIOUS_BUTTON_TOOLTIP]);
      break;

    case PROP_NEXT_BUTTON_TOOLTIP:
      if (g_set_str (&self->next_button_tooltip_text, g_value_get_string (value)))
        g_object_notify_by_pspec (object, properties[PROP_NEXT_BUTTON_TOOLTIP]);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
      break;
    }
}

/*
 * GtkWidget overrides
 */

static void
gcal_multi_choice_state_flags_changed (GtkWidget    *widget,
                                       GtkStateFlags previous_state_flags)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (widget);
  GtkStateFlags state_flags;
  GtkWidget *popover;

  state_flags = gtk_widget_get_state_flags (widget);
  if (state_flags & GTK_STATE_FLAG_FOCUSED)
    gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_FOCUS_VISIBLE, FALSE);

  if (!gtk_widget_is_sensitive (widget))
    {
      if ((popover = gtk_popover_bin_get_popover (self->popover_bin)))
        gtk_widget_set_visible (popover, FALSE);
    }
}

static gboolean
gcal_multi_choice_focus (GtkWidget        *widget,
                         GtkDirectionType  direction)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (widget);
  GtkWidget *popover = gtk_popover_bin_get_popover (self->popover_bin);

  if (popover && gtk_widget_get_visible (popover))
    return gtk_widget_child_focus (popover, direction);
  else
    return gtk_widget_child_focus (self->button, direction);
}

static gboolean
gcal_multi_choice_grab_focus (GtkWidget *widget)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (widget);

  return gtk_widget_grab_focus (self->button);
}

/*
 * GtkAccessible overrides
 */

static gboolean
gcal_multi_choice_accessible_get_platform_state (GtkAccessible              *accessible,
                                                 GtkAccessiblePlatformState  state)
{
  GcalMultiChoice *self = GCAL_MULTI_CHOICE (accessible);

  return gtk_accessible_get_platform_state (GTK_ACCESSIBLE (self->button), state);
}

/*
 * GtkAccessibleRange overrides
 */

static gboolean
gcal_multi_choice_accessible_range_set_current_value (GtkAccessibleRange *accessible_range,
                                                      gdouble             value)
{
  gcal_multi_choice_set_value (GCAL_MULTI_CHOICE (accessible_range), value);
  return TRUE;
}

/*
 * Init
 */

static void
gcal_multi_choice_class_init (GcalMultiChoiceClass *class)
{
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
  GObjectClass *object_class = G_OBJECT_CLASS (class);

  object_class->dispose = gcal_multi_choice_dispose;
  object_class->set_property = gcal_multi_choice_set_property;
  object_class->get_property = gcal_multi_choice_get_property;

  widget_class->state_flags_changed = gcal_multi_choice_state_flags_changed;
  widget_class->focus = gcal_multi_choice_focus;
  widget_class->grab_focus = gcal_multi_choice_grab_focus;

  properties[PROP_VALUE] =
      g_param_spec_int ("value", "Value", "Value",
                        G_MININT, G_MAXINT, 0,
                        G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
  properties[PROP_MIN_VALUE] =
      g_param_spec_int ("min-value", "Minimum Value", "Minimum Value",
                        G_MININT, G_MAXINT, 0,
                        G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
  properties[PROP_MAX_VALUE] =
      g_param_spec_int ("max-value", "Maximum Value", "Maximum Value",
                        G_MININT, G_MAXINT, 0,
                        G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
  properties[PROP_CHOICES] =
      g_param_spec_boxed ("choices", "Choices", "Choices",
                          G_TYPE_STRV,
                          G_PARAM_WRITABLE|G_PARAM_EXPLICIT_NOTIFY);

  /**
   * GcalMultiChoice:popover:
   *
   * The popover widget.
   */
  properties[PROP_POPOVER] =
      g_param_spec_object ("popover", NULL, NULL,
                           GTK_TYPE_POPOVER,
                           G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);

  properties[PROP_CATEGORY] =
      g_param_spec_string ("category", "Category", "Category",
                           "",
                           G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
  properties[PROP_PREVIOUS_BUTTON_TOOLTIP] =
      g_param_spec_string ("previous-button-tooltip", NULL, NULL,
                           NULL,
                           G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
  properties[PROP_NEXT_BUTTON_TOOLTIP] =
      g_param_spec_string ("next-button-tooltip", NULL, NULL,
                           NULL,
                           G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);

  g_object_class_install_properties (object_class, N_PROPS, properties);

  signals[WRAPPED] =
    g_signal_new ("wrapped",
                  G_TYPE_FROM_CLASS (object_class),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  NULL,
                  G_TYPE_NONE, 0);
  signals[ACTIVATE] =
      g_signal_new ("activate",
                    G_TYPE_FROM_CLASS (object_class),
                    G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
                    0,
                    NULL, NULL,
                    NULL,
                    G_TYPE_NONE, 0);

  gtk_widget_class_set_activate_signal (widget_class, signals[ACTIVATE]);

  gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/ui/event-editor/gcal-multi-choice.ui");

  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, down_button);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, up_button);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, button);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, stack);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, label1);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, label2);
  gtk_widget_class_bind_template_child (widget_class, GcalMultiChoice, popover_bin);

  gtk_widget_class_bind_template_callback (widget_class, button_clicked_cb);
  gtk_widget_class_bind_template_callback (widget_class, button_toggled_cb);
  gtk_widget_class_bind_template_callback (widget_class, button_state_flags_changed_cb);
  gtk_widget_class_bind_template_callback (widget_class, key_pressed_cb);

  gtk_widget_class_set_css_name (widget_class, "navigator");

  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
}

static void
gcal_multi_choice_accessible_init (GtkAccessibleInterface *iface)
{
  iface->get_platform_state = gcal_multi_choice_accessible_get_platform_state;
}

static void
gcal_multi_choice_accessible_range_init (GtkAccessibleRangeInterface *iface)
{
  iface->set_current_value = gcal_multi_choice_accessible_range_set_current_value;
}

static void
gcal_multi_choice_init (GcalMultiChoice *self)
{
  gtk_widget_init_template (GTK_WIDGET (self));

  update_sensitivity (self);
}

/*
 * Public methods
 */

/**
 * gcal_multi_choice_new:
 *
 * Creates a new #GcalMultiChoice.
 *
 * Returns: (transfer full): a newly created #GcalEventPopover
 */
GtkWidget *
gcal_multi_choice_new (void)
{
  return GTK_WIDGET (g_object_new (GCAL_TYPE_MULTI_CHOICE, NULL));
}

/**
 * gcal_multi_choice_set_value:
 * @self: a #GcalMultiChoice
 * @value: the value
 *
 * Sets the value for @self.
 */
void
gcal_multi_choice_set_value (GcalMultiChoice *self,
                             gint             value)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));

  set_value (self, value, GTK_STACK_TRANSITION_TYPE_NONE);
}

/**
 * gcal_multi_choice_get_value:
 * @self: a #GcalMultiChoice
 *
 * Gets the value for @self.
 *
 * Returns: The value for @self.
 */
gint
gcal_multi_choice_get_value (GcalMultiChoice *self)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));

  return self->value;
}

/**
 * gcal_multi_choice_set_choices:
 * @self: a #GcalMultiChoice
 * @choices: an array of strings
 *
 * Sets the available choices for @self.
 */
void
gcal_multi_choice_set_choices (GcalMultiChoice  *self,
                               const gchar     **choices)
{
  gint i;

  g_assert (GCAL_IS_MULTI_CHOICE (self));

  for (i = 0; i < self->n_choices; i++)
    gtk_stack_remove (self->stack, self->choices[i]);
  g_free (self->choices);

  self->n_choices = g_strv_length ((gchar **)choices);
  self->choices = g_new (GtkWidget *, self->n_choices);
  for (i = 0; i < self->n_choices; i++)
    {
      self->choices[i] = gtk_label_new (choices[i]);
      gtk_widget_set_visible (self->choices[i], TRUE);
      gtk_stack_add_named (GTK_STACK (self->stack),
                           self->choices[i],
                           choices[i]);
    }

  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_CHOICES]);
}

/**
 * gcal_multi_choice_set_format_callback:
 * @self: a #GcalMultiChoice
 * @callback: (nullable) (scope notified) (closure user_data) (destroy destroy): callback
 * @user_data: user data passed to @callback
 * @destroy: destroy notifier for @user_data
 *
 * Sets the format callback.
 */
void
gcal_multi_choice_set_format_callback (GcalMultiChoice               *self,
                                       GcalMultiChoiceFormatCallback  callback,
                                       gpointer                       user_data,
                                       GDestroyNotify                 destroy)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));

  if (self->format_destroy)
    self->format_destroy (self->format_data);

  self->format_cb = callback;
  self->format_data = user_data;
  self->format_destroy = destroy;

  apply_value (self, GTK_STACK_TRANSITION_TYPE_NONE);
}

/**
 * gcal_multi_choice_set_popover:
 * @self: a #GcalMultiChoice
 * @popover: a popover widget.
 *
 * Sets the popover for @self.
 */
void
gcal_multi_choice_set_value_callbacks (GcalMultiChoice              *self,
                                       GcalMultiChoiceValueCallback  prev_cb,
                                       GcalMultiChoiceValueCallback  next_cb)
{
  self->prev_cb = prev_cb;
  self->next_cb = next_cb;
}

void
gcal_multi_choice_set_popover (GcalMultiChoice *self,
                               GtkWidget       *popover)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));
  g_assert (popover == NULL || GTK_IS_POPOVER (popover));

  if (gtk_popover_bin_get_popover (self->popover_bin) == popover)
    return;

  gtk_popover_bin_set_popover (self->popover_bin, popover);

  if (popover)
    g_signal_connect_swapped (popover, "closed", G_CALLBACK (menu_deactivate_cb), self);

  update_sensitivity (self);

  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_POPOVER]);
}

/**
 * gcal_multi_choice_get_popover:
 * @self: a #GcalMultiChoice
 *
 * Gets the popover for @self.
 *
 * Returns: (transfer none): a #GtkPopover
 */
GtkPopover *
gcal_multi_choice_get_popover (GcalMultiChoice *self)
{
  GtkWidget *popover;

  g_assert (GCAL_IS_MULTI_CHOICE (self));

  popover = gtk_popover_bin_get_popover (self->popover_bin);

  return (GtkPopover *)popover;
}

/**
 * gcal_multi_choice_set_category:
 * @self: a #GcalMultiChoice
 * @category: The category name
 *
 * Set the value of the category name
 */
void
gcal_multi_choice_set_category (GcalMultiChoice *self,
                                const gchar     *category)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));

  if (g_strcmp0 (self->category, category) != 0)
    {
      self->category = g_strdup (category ? category : "");

      gtk_accessible_update_property (GTK_ACCESSIBLE (self),
                                      GTK_ACCESSIBLE_PROPERTY_LABEL, category,
                                      -1);

      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_CATEGORY]);
    }
}

/**
 * gcal_multi_choice_get_category:
 * @self: a #GcalMultiChoice
 *
 * Get the name of the category
 *
 * Returns: (transfer none): the category for the multi-choice.
 */
const gchar*
gcal_multi_choice_get_category (GcalMultiChoice *self)
{
  g_assert (GCAL_IS_MULTI_CHOICE (self));

  return self->category ? self->category : "";
}