event-editor: Extract attendee summary row into a separate widget

Make the summary row reusable and filterable based on the attendee type.
This gives us the possibility to have separate summaries for
people/groups and resources/rooms.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/671>

po/POTFILES.in

@@ -21,6 +21,8 @@ src/gui/event-editor/gcal-attendee-row.blp
 src/gui/event-editor/gcal-attendee-row.c
 src/gui/event-editor/gcal-attendee-details-page.blp
 src/gui/event-editor/gcal-attendee-details-page.c
+src/gui/event-editor/gcal-attendee-summary-row.blp
+src/gui/event-editor/gcal-attendee-summary-row.c
 src/gui/event-editor/gcal-attendees-section.blp
 src/gui/event-editor/gcal-attendees-section.c
 src/gui/event-editor/gcal-date-chooser-row.blp

src/gui/event-editor/event-editor.gresource.xml

@@ -16,5 +16,6 @@
     <file compressed="true">gcal-attendees-section.ui</file>
     <file compressed="true">gcal-attendee-row.ui</file>
     <file compressed="true">gcal-attendee-details-page.ui</file>
+    <file compressed="true">gcal-attendee-summary-row.ui</file>
   </gresource>
 </gresources>

src/gui/event-editor/gcal-attendee-details-page.c

@@ -415,6 +415,15 @@ gcal_attendee_details_page_set_attendees (GcalAttendeeDetailsPage *self,
     }
 }
 
+/**
+ * gcal_attendee_details_page_set_type_filter:
+ * @self: a #GcalAttendeeDetailsPage instance.
+ * @flags: flags of type #GcalEventAttendeeTypeFilterFlags.
+ *
+ * Sets the type of attendees to use as the base filter on the
+ * list of attendees. E.g. only people or only resources, or both
+ * are filtered before grouping by response is performed.
+ */
 void
 gcal_attendee_details_page_set_type_filter (GcalAttendeeDetailsPage         *self,
                                             GcalEventAttendeeTypeFilterFlags flags)

src/gui/event-editor/gcal-attendee-summary-row.blp

@@ -0,0 +1,26 @@
+using Gtk 4.0;
+using Adw 1;
+
+template $GcalAttendeeSummaryRow: Adw.ActionRow {
+  visible: bind template.filtered-list as <Gtk.FilterListModel>.n-items;
+  activatable-widget: open_details;
+
+  styles [
+    "property",
+  ]
+
+  [suffix]
+  Label {
+    valign: center;
+    label: bind template.filtered-list as <Gtk.FilterListModel>.n-items;
+
+    styles [
+      "participants-count-label",
+    ]
+  }
+
+  [suffix]
+  Image open_details {
+    icon-name: "go-next-symbolic";
+  }
+}

src/gui/event-editor/gcal-attendee-summary-row.c

@@ -0,0 +1,359 @@
+/* gcal-attendee-summary-row.c
+ *
+ * Copyright (C) 2025 Alen Galinec <mind.on.warp@gmail.com>
+ *
+ * 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 3 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/>.
+ */
+
+#include "gcal-attendee-summary-row.h"
+#include "gcal-enum-types.h"
+#include "gcal-enums.h"
+#include "gcal-event-attendee.h"
+#include "gio/gio.h"
+#include "glib.h"
+
+#include <adwaita.h>
+#include <glib-object.h>
+#include <gtk/gtk.h>
+#include <libintl.h>
+
+struct _GcalAttendeeSummaryRow
+{
+  AdwActionRow parent_instance;
+
+  GListStore         *attendees;
+  GtkFilterListModel *filtered_attendees;
+  GtkCustomFilter    *attendee_filter;
+
+  /* participation summary */
+  guint num_accepted;
+  guint num_declined;
+  guint num_tentative;
+  guint num_not_responded;
+  guint num_delegated;
+
+  GcalEventAttendeeTypeFilterFlags filter_flags;
+};
+
+G_DEFINE_FINAL_TYPE (GcalAttendeeSummaryRow, gcal_attendee_summary_row, ADW_TYPE_ACTION_ROW)
+
+enum
+{
+  PROP_ATTENDEES = 1,
+  PROP_FILTER_FLAGS,
+  PROP_FILTERED_LIST,
+  PROP_NUM_ACCEPTED,
+  PROP_NUM_DECLINED,
+  PROP_NUM_TENTATIVE,
+  PROP_NUM_DELEGATED,
+  PROP_NUM_UNKNOWN,
+  N_PROPS
+};
+
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+/* Auxiliary methods */
+
+static void
+notify_summary_changed (GcalAttendeeSummaryRow *self)
+{
+  for (guint i = 1; i < N_PROPS; ++i)
+    g_object_notify_by_pspec (G_OBJECT (self), properties[i]);
+}
+
+static gboolean
+custom_filter_func (GcalEventAttendee      *attendee,
+                    GcalAttendeeSummaryRow *self)
+{
+  GcalEventAttendeeType attendee_type = gcal_event_attendee_get_attendee_type (attendee);
+
+  switch (self->filter_flags)
+  {
+    case GCAL_EVENT_ATTENDEE_TYPE_FILTER_PERSON:
+      return attendee_type == GCAL_EVENT_ATTENDEE_TYPE_INDIVIDUAL || attendee_type == GCAL_EVENT_ATTENDEE_TYPE_GROUP;
+
+    case GCAL_EVENT_ATTENDEE_TYPE_FILTER_RESOURCE:
+      return attendee_type == GCAL_EVENT_ATTENDEE_TYPE_ROOM || attendee_type == GCAL_EVENT_ATTENDEE_TYPE_RESOURCE;
+
+    default:
+      return TRUE;
+  }
+}
+
+static inline void
+concat_subtitle_part (GStrvBuilder *builder,
+                      guint         value,
+                      const gchar  *text)
+{
+  if (value <= 0)
+    return;
+
+  g_strv_builder_take (builder, g_strdup_printf ("%d %s", value, text));
+}
+
+static const gchar*
+build_summary_subtitle (GcalAttendeeSummaryRow *self)
+{
+  g_autoptr (GStrvBuilder) builder = g_strv_builder_new ();
+  g_auto (GStrv) parts = NULL;
+
+  concat_subtitle_part (builder, self->num_accepted, ngettext ("accepted", "accepted", self->num_accepted));
+  concat_subtitle_part (builder, self->num_tentative, ngettext ("maybe", "maybe", self->num_tentative));
+  concat_subtitle_part (builder, self->num_declined, ngettext ("declined", "declined", self->num_declined));
+  concat_subtitle_part (builder, self->num_delegated, ngettext ("delegated", "delegated", self->num_delegated));
+  concat_subtitle_part (builder, self->num_not_responded, ngettext ("not responded", "not responded", self->num_not_responded));
+
+  parts = g_strv_builder_end (builder);
+
+  return g_strjoinv (", ", parts);
+}
+
+static void
+setup_filtered_attendees (GcalAttendeeSummaryRow *self,
+                          GListModel             *attendees)
+{
+  g_return_if_fail (GCAL_IS_ATTENDEE_SUMMARY_ROW (self));
+
+  g_list_store_remove_all (self->attendees);
+  self->num_accepted = 0;
+  self->num_declined = 0;
+  self->num_delegated = 0;
+  self->num_tentative = 0;
+  self->num_not_responded = 0;
+
+  if (attendees == NULL)
+    return;
+
+  guint n = g_list_model_get_n_items (attendees);
+  for (uint i = 0; i < n; ++i)
+    {
+      GcalEventAttendee *attendee = g_list_model_get_item (attendees, i);
+      g_list_store_append (self->attendees, attendee);
+
+      /* this should be faster than going through self->filtered_attendees afterwards */
+      if (!custom_filter_func (attendee, self))
+        continue;
+
+      switch (gcal_event_attendee_get_part_status (attendee))
+        {
+        case GCAL_EVENT_ATTENDEE_PART_ACCEPTED:
+          self->num_accepted++;
+          break;
+        case GCAL_EVENT_ATTENDEE_PART_DECLINED:
+          self->num_declined++;
+          break;
+        case GCAL_EVENT_ATTENDEE_PART_DELEGATED:
+          self->num_delegated++;
+          break;
+        case GCAL_EVENT_ATTENDEE_PART_TENTATIVE:
+          self->num_tentative++;
+          break;
+        default:
+          self->num_not_responded++;
+        }
+    }
+
+  g_autofree const gchar *subtitle = build_summary_subtitle (self);
+  adw_action_row_set_subtitle (ADW_ACTION_ROW (self), subtitle);
+
+  notify_summary_changed (self);
+}
+
+static void
+change_attendee_filter_type (GcalAttendeeSummaryRow           *self,
+                             GcalEventAttendeeTypeFilterFlags  value)
+{
+  self->filter_flags = value;
+  gtk_filter_changed (GTK_FILTER (self->attendee_filter), GTK_FILTER_CHANGE_DIFFERENT);
+  gtk_actionable_set_action_target (GTK_ACTIONABLE (self), "u", self->filter_flags);
+}
+
+static void
+gcal_attendee_summary_row_set_property (GObject      *object,
+                                        guint         property_id,
+                                        const GValue *value,
+                                        GParamSpec   *pspec)
+{
+  GcalAttendeeSummaryRow *self = GCAL_ATTENDEE_SUMMARY_ROW (object);
+
+  switch (property_id)
+    {
+    case PROP_ATTENDEES:
+      setup_filtered_attendees (self, g_value_get_object (value));
+      break;
+    case PROP_FILTER_FLAGS:
+      change_attendee_filter_type (self, g_value_get_flags (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+gcal_attendee_summary_row_get_property (GObject    *object,
+                                        guint       property_id,
+                                        GValue     *value,
+                                        GParamSpec *pspec)
+{
+  GcalAttendeeSummaryRow *self = GCAL_ATTENDEE_SUMMARY_ROW (object);
+
+  switch (property_id)
+    {
+    case PROP_FILTER_FLAGS:
+      g_value_set_flags (value, self->filter_flags);
+      break;
+    case PROP_FILTERED_LIST:
+      g_value_set_object (value, self->filtered_attendees);
+      break;
+    case PROP_NUM_ACCEPTED:
+      g_value_set_uint (value, self->num_accepted);
+      break;
+    case PROP_NUM_DECLINED:
+      g_value_set_uint (value, self->num_declined);
+      break;
+    case PROP_NUM_DELEGATED:
+      g_value_set_uint (value, self->num_delegated);
+      break;
+    case PROP_NUM_TENTATIVE:
+      g_value_set_uint (value, self->num_tentative);
+      break;
+    case PROP_NUM_UNKNOWN:
+      g_value_set_uint (value, self->num_not_responded);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+gcal_attendee_summary_row_finalize (GObject *object)
+{
+  GcalAttendeeSummaryRow *self = (GcalAttendeeSummaryRow *) object;
+
+  g_clear_pointer (&self->attendees, g_list_store_remove_all);
+  g_clear_object (&self->attendee_filter);
+
+  self->filtered_attendees = NULL;
+
+  G_OBJECT_CLASS (gcal_attendee_summary_row_parent_class)->finalize (object);
+}
+
+static void
+gcal_attendee_summary_row_class_init (GcalAttendeeSummaryRowClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gcal_attendee_summary_row_finalize;
+  object_class->set_property = gcal_attendee_summary_row_set_property;
+  object_class->get_property = gcal_attendee_summary_row_get_property;
+
+  /**
+   * GcalAttendeeSummaryRow:attendees:
+   *
+   * The unfiltered list of attendees.
+   */
+  properties[PROP_ATTENDEES] =
+    g_param_spec_object ("attendees", NULL, NULL,
+                         G_TYPE_LIST_MODEL,
+                         G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:filter-flags:
+   *
+   * The GCAL_TYPE_EVENT_ATTENDEE_TYPE_FILTER_FLAGS used to filter the attendees.
+   */
+  properties[PROP_FILTER_FLAGS] =
+    g_param_spec_flags ("filter-flags", NULL, NULL,
+                       GCAL_TYPE_EVENT_ATTENDEE_TYPE_FILTER_FLAGS, GCAL_EVENT_ATTENDEE_TYPE_FILTER_NONE,
+                       G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:filtered-list:
+   *
+   * The filtered list of attendees.
+   * Filtered by #GcalAttendeeSummaryRow:filter-type
+   */
+  properties[PROP_FILTERED_LIST] =
+    g_param_spec_object ("filtered-list", NULL, NULL,
+                         GTK_TYPE_FILTER_LIST_MODEL,
+                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:num-accepted:
+   *
+   * Gets the number of attendees who accepted.
+   */
+  properties[PROP_NUM_ACCEPTED] =
+    g_param_spec_uint ("num-accepted", NULL, NULL,
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:num-declined:
+   *
+   * Gets the number of attendees who declined.
+   */
+  properties[PROP_NUM_DECLINED] =
+    g_param_spec_uint ("num-declined", NULL, NULL,
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:num-tentative:
+   *
+   * Gets the number of attendees who "maybe" will attend.
+   */
+  properties[PROP_NUM_TENTATIVE] =
+    g_param_spec_uint ("num-tentative", NULL, NULL,
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:num-unknown:
+   *
+   * Gets the number of attendees with an unknown response.
+   */
+  properties[PROP_NUM_UNKNOWN] =
+    g_param_spec_uint ("num-unknown", NULL, NULL,
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GcalAttendeeSummaryRow:num-delegated:
+   *
+   * Gets the number of attendees who delegated their attendance to someone else.
+   */
+  properties[PROP_NUM_DELEGATED] =
+    g_param_spec_uint ("num-delegated", NULL, NULL,
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+
+  gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/ui/event-editor/gcal-attendee-summary-row.ui");
+}
+
+static void
+gcal_attendee_summary_row_init (GcalAttendeeSummaryRow *instance)
+{
+  instance->attendees = g_list_store_new (GCAL_TYPE_EVENT_ATTENDEE);
+  instance->attendee_filter = gtk_custom_filter_new ((GtkCustomFilterFunc) custom_filter_func, instance, NULL);
+  instance->filtered_attendees = gtk_filter_list_model_new (G_LIST_MODEL (instance->attendees), GTK_FILTER (instance->attendee_filter));
+
+  gtk_widget_init_template(GTK_WIDGET(instance));
+
+  gtk_actionable_set_action_name (GTK_ACTIONABLE (instance), "event-editor.show-attendees-detail-page");
+}
+

src/gui/event-editor/gcal-attendee-summary-row.h

@@ -0,0 +1,32 @@
+/* gcal-attendee-summary-row.c
+ *
+ * Copyright (C) 2025 Alen Galinec <mind.on.warp@gmail.com>
+ *
+ * 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 3 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/>.
+ */
+
+#ifndef GCAL_ATTENDEE_SUMMARY_ROW_H
+#define GCAL_ATTENDEE_SUMMARY_ROW_H
+
+#include <adwaita.h>
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+#define GCAL_TYPE_ATTENDEE_SUMMARY_ROW (gcal_attendee_summary_row_get_type ())
+G_DECLARE_FINAL_TYPE (GcalAttendeeSummaryRow, gcal_attendee_summary_row, GCAL, ATTENDEE_SUMMARY_ROW, AdwActionRow)
+
+G_END_DECLS
+
+#endif

src/gui/event-editor/gcal-attendees-section.blp

@@ -23,30 +23,16 @@ template $GcalAttendeesSection: Gtk.Box {
       ]
     }
 
-    Adw.ActionRow summary_row {
+    $GcalAttendeeSummaryRow summary_row {
       title: _("Participants");
-      activatable-widget: open_details;
+      attendees: bind template.attendees;
-      activated => $on_participant_summary_row_activated_cb(template) not-swapped;
+      filter-flags: GCAL_EVENT_ATTENDEE_TYPE_FILTER_PERSON;
+    }
 
-      styles [
+    $GcalAttendeeSummaryRow {
-        "property",
+      title: _("Resources");
-      ]
+      attendees: bind template.attendees;
-
+      filter-flags: GCAL_EVENT_ATTENDEE_TYPE_FILTER_RESOURCE;
-      [suffix]
-      Label {
-        valign: center;
-        label: bind template.num-participants as <string>;
-        tooltip-text: _("Number of participants");
-
-        styles [
-          "participants-count-label",
-        ]
-      }
-
-      [suffix]
-      Image open_details {
-        icon-name: "go-next-symbolic";
-      }
     }
   }
 }

src/gui/event-editor/gcal-attendees-section.c

@@ -22,13 +22,14 @@
 #include <gtk/gtk.h>
 #include <libintl.h>
 
+#include "gcal-attendee-summary-row.h"
 #include "gcal-context.h"
-#include "gcal-enums.h"
 #include "gcal-event-attendee.h"
 #include "gcal-event-editor-section.h"
 #include "gcal-event-organizer.h"
 #include "gcal-event.h"
 #include "gcal-utils.h"
+#include "glib-object.h"
 
 struct _GcalAttendeesSection
 {
@@ -40,12 +41,7 @@ struct _GcalAttendeesSection
   AdwActionRow        *organizer_row;
   AdwActionRow        *summary_row;
 
-  /* participation summary */
+  GListStore          *attendees;
-  guint num_accepted;
-  guint num_declined;
-  guint num_tentative;
-  guint num_not_responded;
-  guint num_delegated;
 };
 
 static void          gcal_event_editor_section_init_iface        (GcalEventEditorSectionInterface *iface);
@@ -57,22 +53,10 @@ enum
 {
   PROP_0,
   PROP_CONTEXT,
-  PROP_NUM_ACCEPTED,
+  PROP_ATTENDEES,
-  PROP_NUM_DECLINED,
-  PROP_NUM_TENTATIVE,
-  PROP_NUM_DELEGATED,
-  PROP_NUM_UNKNOWN,
-  PROP_NUM_TOTAL,
   N_PROPS
 };
 
-enum
-{
-  SUMMARY_ROW_ACTIVATED,
-  N_SIGNALS,
-};
-
-static guint signals[N_SIGNALS] = { 0, };
 static GParamSpec *properties[N_PROPS] = { NULL, };
 
 static void
@@ -84,50 +68,8 @@ reset_section (GcalAttendeesSection *self,
 
   g_set_object (&self->event, event);
 
+  g_list_store_remove_all (self->attendees);
   adw_action_row_set_subtitle (self->organizer_row, NULL);
-  adw_action_row_set_subtitle (self->summary_row, NULL);
-
-  self->num_accepted = 0;
-  self->num_declined = 0;
-  self->num_tentative = 0;
-  self->num_not_responded = 0;
-  self->num_delegated = 0;
-}
-
-static inline void
-concat_subtitle_part (GStrvBuilder *builder,
-                      guint         value,
-                      const gchar  *text)
-{
-  if (value <= 0)
-    return;
-
-  g_strv_builder_take (builder, g_strdup_printf ("%d %s", value, text));
-}
-
-static gchar*
-build_summary_subtitle (GcalAttendeesSection  *self)
-{
-  g_autoptr (GStrvBuilder) builder = g_strv_builder_new ();
-
-  concat_subtitle_part (builder, self->num_accepted, ngettext ("accepted", "accepted", self->num_accepted));
-  concat_subtitle_part (builder, self->num_tentative, ngettext ("maybe", "maybe", self->num_tentative));
-  concat_subtitle_part (builder, self->num_declined, ngettext ("declined", "declined", self->num_declined));
-  concat_subtitle_part (builder, self->num_delegated, ngettext ("delegated", "delegated", self->num_delegated));
-  concat_subtitle_part (builder, self->num_not_responded, ngettext ("not responded", "not responded", self->num_not_responded));
-
-  g_auto (GStrv) parts = g_strv_builder_end (builder);
-
-  gchar *result = g_strjoinv (", ", parts);
-
-  return result;
-}
-
-static void
-gcal_attendees_section_notify (GcalAttendeesSection *self)
-{
-  for (guint i = 1; i < N_PROPS; ++i)
-    g_object_notify_by_pspec (G_OBJECT (self), properties[i]);
 }
 
 static void
@@ -157,37 +99,9 @@ gcal_attendees_section_set_event (GcalEventEditorSection *section,
   /* set attendees and summarize attendance status */
   attendees = gcal_event_get_attendees (self->event);
   for (GSList *l = attendees; l != NULL; l = l->next)
-    {
+    g_list_store_append (self->attendees, GCAL_EVENT_ATTENDEE (l->data));
-      g_autoptr (GcalEventAttendee) attendee = GCAL_EVENT_ATTENDEE (l->data);
 
-      switch (gcal_event_attendee_get_part_status (attendee))
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ATTENDEES]);
-        {
-        case GCAL_EVENT_ATTENDEE_PART_ACCEPTED:
-          self->num_accepted++;
-          break;
-
-        case GCAL_EVENT_ATTENDEE_PART_DECLINED:
-          self->num_declined++;
-          break;
-
-        case GCAL_EVENT_ATTENDEE_PART_TENTATIVE:
-          self->num_tentative++;
-          break;
-
-        case GCAL_EVENT_ATTENDEE_PART_DELEGATED:
-          self->num_delegated++;
-          break;
-
-        default:
-          self->num_not_responded++;
-          break;
-        }
-    }
-
-  adw_action_row_set_subtitle (self->summary_row, build_summary_subtitle (self));
-
-  /* notify properties changed */
-  gcal_attendees_section_notify (self);
 }
 
 static void
@@ -211,21 +125,6 @@ gcal_event_editor_section_init_iface (GcalEventEditorSectionInterface *iface)
   iface->changed = gcal_attendees_section_changed;
 }
 
-static guint
-gcal_attendees_section_get_num_participants (GcalAttendeesSection *self)
-{
-  g_assert (GCAL_IS_ATTENDEES_SECTION (self));
-
-  return self->num_accepted + self->num_declined + self->num_tentative + self->num_delegated + self->num_not_responded;
-}
-
-static void
-on_participant_summary_row_activated_cb (AdwActionRow *summary_row,
-                                         GcalAttendeesSection *self)
-{
-  g_signal_emit (self, signals[SUMMARY_ROW_ACTIVATED], 0);
-}
-
 static void
 gcal_attendees_section_get_property (GObject *object,
                                      guint property_id,
@@ -240,28 +139,8 @@ gcal_attendees_section_get_property (GObject *object,
       g_value_set_object (value, self->context);
       break;
 
-    case PROP_NUM_ACCEPTED:
+    case PROP_ATTENDEES:
-      g_value_set_uint (value, self->num_accepted);
+      g_value_set_object (value, self->attendees);
-      break;
-
-    case PROP_NUM_DECLINED:
-      g_value_set_uint (value, self->num_declined);
-      break;
-
-    case PROP_NUM_TENTATIVE:
-      g_value_set_uint (value, self->num_tentative);
-      break;
-
-    case PROP_NUM_DELEGATED:
-      g_value_set_uint (value, self->num_delegated);
-      break;
-
-    case PROP_NUM_UNKNOWN:
-      g_value_set_uint (value, self->num_not_responded);
-      break;
-
-    case PROP_NUM_TOTAL:
-      g_value_set_uint (value, gcal_attendees_section_get_num_participants (self));
       break;
 
     default:
@@ -296,6 +175,7 @@ gcal_attendees_section_finalize (GObject *object)
 
   g_clear_object (&self->context);
   g_clear_object (&self->event);
+  g_clear_pointer (&self->attendees, g_list_store_remove_all);
 
   G_OBJECT_CLASS (gcal_attendees_section_parent_class)->finalize (object);
 }
@@ -303,6 +183,7 @@ gcal_attendees_section_finalize (GObject *object)
 static void
 gcal_attendees_section_init (GcalAttendeesSection *instance)
 {
+  instance->attendees = g_list_store_new (GCAL_TYPE_EVENT_ATTENDEE);
   gtk_widget_init_template (GTK_WIDGET (instance));
 }
 
@@ -312,6 +193,8 @@ gcal_attendees_section_class_init (GcalAttendeesSectionClass *klass)
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
+  g_type_ensure (GCAL_TYPE_ATTENDEE_SUMMARY_ROW);
+
   object_class->finalize = gcal_attendees_section_finalize;
   object_class->get_property = gcal_attendees_section_get_property;
   object_class->set_property = gcal_attendees_section_set_property;
@@ -326,87 +209,15 @@ gcal_attendees_section_class_init (GcalAttendeesSectionClass *klass)
                          GCAL_TYPE_CONTEXT,
                          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 
-  /**
+  properties[PROP_ATTENDEES] =
-   * GcalAttendeesSection:num-accepted:
+    g_param_spec_object ("attendees", NULL, NULL,
-   *
+                         G_TYPE_LIST_STORE,
-   * Gets the number of attendees who accepted.
+                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
-   */
-  properties[PROP_NUM_ACCEPTED] =
-    g_param_spec_uint ("num-accepted", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  /**
-   * GcalAttendeesSection:num-declined:
-   *
-   * Gets the number of attendees who declined.
-   */
-  properties[PROP_NUM_DECLINED] =
-    g_param_spec_uint ("num-declined", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  /**
-   * GcalAttendeesSection:num-tentative:
-   *
-   * Gets the number of attendees who "maybe" will attend.
-   */
-  properties[PROP_NUM_TENTATIVE] =
-    g_param_spec_uint ("num-tentative", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
-
-  /**
-   * GcalAttendeesSection:num-unknown:
-   *
-   * Gets the number of attendees with an unknown response.
-   */
-  properties[PROP_NUM_UNKNOWN] =
-    g_param_spec_uint ("num-unknown", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
-
-  /**
-   * GcalAttendeesSection: num-delegated:
-   *
-   * Gets the number of attendees who delegated their attendance to someone else.
-   */
-  properties[PROP_NUM_DELEGATED] =
-    g_param_spec_uint ("num-delegated", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY  | G_PARAM_STATIC_STRINGS);
-
-  /**
-   * GcalAttendeesSection:num-participants:
-   *
-   * Gets the total number of attendees/participants.
-   */
-  properties[PROP_NUM_TOTAL] =
-    g_param_spec_uint ("num-participants", NULL, NULL,
-                       0, G_MAXUINT, 0,
-                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
   g_object_class_install_properties (object_class, N_PROPS, properties);
 
-  /**
-   * GcalAttendeesSection::summary-row-activated:
-   *
-   * This signal is emitted when the summary row is activated.
-   */
-  signals[SUMMARY_ROW_ACTIVATED] =
-    g_signal_new ("summary-row-activated",
-                  GCAL_TYPE_ATTENDEES_SECTION,
-                  G_SIGNAL_RUN_LAST,
-                  0,
-                  NULL, NULL,
-                  NULL,
-                  G_TYPE_NONE,
-                  0);
-
   gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/ui/event-editor/gcal-attendees-section.ui");
 
   gtk_widget_class_bind_template_child (widget_class, GcalAttendeesSection, organizer_row);
   gtk_widget_class_bind_template_child (widget_class, GcalAttendeesSection, summary_row);
-
-  gtk_widget_class_bind_template_callback (widget_class, on_participant_summary_row_activated_cb);
 }

src/gui/event-editor/gcal-event-editor-dialog.blp

@@ -63,7 +63,6 @@ template $GcalEventEditorDialog: Adw.Dialog {
             Adw.PreferencesGroup participants_group {
               $GcalAttendeesSection attendees_section {
                 sensitive: bind template.writable;
-                summary-row-activated => $on_attendees_summary_activated_cb(template) not-swapped;
               }
             }
 

src/gui/event-editor/gcal-event-editor-dialog.c

@@ -309,23 +309,6 @@ out:
  * Callbacks
  */
 
-static void
-on_attendees_summary_activated_cb (GcalAttendeesSection  *section,
-                                   GcalEventEditorDialog *self)
-{
-  g_autoptr (GSList) attendees = NULL;
-
-  g_assert (GCAL_IS_EVENT_EDITOR_DIALOG (self));
-
-  attendees = gcal_event_get_attendees (self->event);
-
-  gcal_attendee_details_page_set_attendees (GCAL_ATTENDEE_DETAILS_PAGE (self->attendee_details_page),
-                                            attendees);
-
-  adw_navigation_view_push (ADW_NAVIGATION_VIEW (self->nav_view),
-                            ADW_NAVIGATION_PAGE (self->attendee_details_page));
-}
-
 static void
 on_event_editor_save_action_activated_cb (GSimpleAction *action,
                                           GVariant      *param,
@@ -635,7 +618,6 @@ gcal_event_editor_dialog_class_init (GcalEventEditorDialogClass *klass)
   /* callbacks */
   gtk_widget_class_bind_template_callback (widget_class, on_cancel_button_clicked_cb);
   gtk_widget_class_bind_template_callback (widget_class, on_delete_row_activated_cb);
-  gtk_widget_class_bind_template_callback (widget_class, on_attendees_summary_activated_cb);
 }
 
 static void
@@ -643,7 +625,7 @@ gcal_event_editor_dialog_init (GcalEventEditorDialog *self)
 {
   static const GActionEntry actions[] = {
     {"save", on_event_editor_save_action_activated_cb },
-    {"show-attendees-detail-page", on_show_attendees_detail_page_action_activated_cb },
+    {"show-attendees-detail-page", on_show_attendees_detail_page_action_activated_cb, "u" },
   };
 
   gint i = 0;

src/gui/event-editor/meson.build

@@ -19,6 +19,7 @@ blueprints = custom_target(
     'gcal-attendees-section.blp',
     'gcal-attendee-row.blp',
     'gcal-attendee-details-page.blp',
+    'gcal-attendee-summary-row.blp',
   ),
   output: '.',
   command: [
@@ -55,4 +56,5 @@ sources += files(
   'gcal-attendees-section.c',
   'gcal-attendee-row.c',
   'gcal-attendee-details-page.c',
+  'gcal-attendee-summary-row.c',
 )