demo: Use a listview as sidebar

This implements all the keybindings from GtkTreeView that can be
supported.

It does not implement expand-all, because supporting that means
causing the TreeListModel to emit lots of create_model vfuncs which in
turn would cause many items-changed signal which in turn would cause
many signal handlers to run which in turn would make "expand-all" very
reentrant, and I'm uneasy about supporting that.

For the mouse, just add a click gesture to the expander icon that toggles
expanded state.

demos/gtk-demo/award.c

@@ -0,0 +1,248 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "award.h"
+
+struct _GtkAward
+{
+  GObject parent;
+
+  char *explanation;
+  char *name;
+  char *title;
+  GDateTime *granted; /* or NULL if not granted */
+};
+
+enum {
+  PROP_0,
+  PROP_EXPLANATION,
+  PROP_NAME,
+  PROP_TITLE,
+  PROP_GRANTED,
+
+  N_PROPS,
+};
+
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+G_DEFINE_TYPE (GtkAward, gtk_award, G_TYPE_OBJECT)
+
+static void
+gtk_award_set_property (GObject      *object,
+                        guint         prop_id,
+                        const GValue *value,
+                        GParamSpec   *pspec)
+
+{
+  GtkAward *self = GTK_AWARD (object);
+
+  switch (prop_id)
+    {
+    case PROP_EXPLANATION:
+      self->explanation = g_value_dup_string (value);
+      break;
+
+    case PROP_NAME:
+      self->name = g_value_dup_string (value);
+      break;
+
+    case PROP_TITLE:
+      self->title = g_value_dup_string (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_award_get_property (GObject    *object,
+                        guint       prop_id,
+                        GValue     *value,
+                        GParamSpec *pspec)
+{
+  GtkAward *self = GTK_AWARD (object);
+
+  switch (prop_id)
+    {
+    case PROP_EXPLANATION:
+      g_value_set_string (value, self->explanation);
+      break;
+
+    case PROP_NAME:
+      g_value_set_string (value, self->name);
+      break;
+
+    case PROP_TITLE:
+      g_value_set_string (value, self->title);
+      break;
+
+    case PROP_GRANTED:
+      g_value_set_boxed (value, self->granted);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_award_dispose (GObject *object)
+{
+  GtkAward *self = GTK_AWARD (object);
+
+  g_clear_pointer (&self->name, g_free);
+  g_clear_pointer (&self->title, g_free);
+  g_clear_pointer (&self->granted, g_date_time_unref);
+
+  G_OBJECT_CLASS (gtk_award_parent_class)->dispose (object);
+}
+
+static void
+gtk_award_class_init (GtkAwardClass *class)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+
+  gobject_class->set_property = gtk_award_set_property;
+  gobject_class->get_property = gtk_award_get_property;
+  gobject_class->dispose = gtk_award_dispose;
+
+  properties[PROP_EXPLANATION] =
+    g_param_spec_string ("explanation",
+                         "Explanation",
+                         "How to get the title",
+                         NULL,
+                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  properties[PROP_NAME] =
+    g_param_spec_string ("name",
+                         "Name",
+                         "internal name of the award",
+                         NULL,
+                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  properties[PROP_TITLE] =
+    g_param_spec_string ("title",
+                         "Title",
+                         "user-visible title",
+                         NULL,
+                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  properties[PROP_GRANTED] =
+    g_param_spec_boxed ("granted",
+                        "Granted",
+                        "Timestamp the award was granted or NULL if not granted yet",
+                        G_TYPE_DATE_TIME,
+                        G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+}
+
+static void
+gtk_award_init (GtkAward *self)
+{
+}
+
+GListModel *
+gtk_award_get_list (void)
+{
+  static GListModel *list = NULL;
+
+  if (list == NULL)
+    {
+      GtkBuilder *builder;
+
+      g_type_ensure (GTK_TYPE_AWARD);
+      builder = gtk_builder_new_from_resource ("/awards.ui");
+      gtk_builder_connect_signals (builder, NULL);
+      list = G_LIST_MODEL (gtk_builder_get_object (builder, "list"));
+      g_object_ref (list);
+      g_object_unref (builder);
+    }
+
+  return g_object_ref (list);
+}
+
+const char *
+gtk_award_get_name (GtkAward *award)
+{
+  return award->name;
+}
+
+const char *
+gtk_award_get_title (GtkAward *award)
+{
+  return award->title;
+}
+
+GDateTime *
+gtk_award_get_granted (GtkAward *award)
+{
+  return award->granted;
+}
+
+GtkAward *
+award_find (const char *name)
+{
+  GListModel *list;
+  GtkAward *self;
+  guint i;
+
+  list = gtk_award_get_list ();
+  g_object_unref (list);
+
+  for (i = 0; i < g_list_model_get_n_items (list); i++)
+    {
+      self = g_list_model_get_item (list, i);
+      g_object_unref (self);
+
+      if (g_ascii_strcasecmp (name, self->name) == 0)
+        return self;
+    }
+
+  return NULL;
+}
+
+void
+award (const char *name)
+{
+  GtkAward *self;
+  GNotification *notification;
+
+  self = award_find (name);
+  if (self == NULL)
+    {
+      g_warning ("Did not find award \"%s\"", name);
+      return;
+    }
+
+  if (self->granted)
+    return;
+
+  self->granted = g_date_time_new_now_utc ();
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_GRANTED]);
+
+  notification = g_notification_new ("You won an award!");
+  g_notification_set_body (notification, self->title);
+  g_application_send_notification (g_application_get_default (), NULL, notification);
+  g_object_unref (notification);
+}
+

demos/gtk-demo/award.h

@@ -0,0 +1,18 @@
+#ifndef __AWARD_H__
+#define __AWARD_H__
+
+#include <gtk/gtk.h>
+
+#define GTK_TYPE_AWARD (gtk_award_get_type ())
+
+G_DECLARE_FINAL_TYPE (GtkAward, gtk_award, GTK, AWARD, GObject)
+
+GListModel *    gtk_award_get_list                      (void);
+
+const char *    gtk_award_get_name                      (GtkAward               *award);
+const char *    gtk_award_get_title                     (GtkAward               *award);
+GDateTime *     gtk_award_get_granted                   (GtkAward               *award);
+
+void            award                                   (const char             *name);
+
+#endif /* __AWARD_H__ */

demos/gtk-demo/awardlistitem.ui

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface domain="gtk40">
+  <template class="GtkListItem">
+    <child>
+      <object class="GtkLabel">
+        <property name="label" bind-source="GtkListItem" bind-property="position"></property>
+        <property name="margin">6</property>
+      </object>
+    </child>
+  </template>
+</interface>

demos/gtk-demo/awards.ui

@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GListStore" id="list">
+    <property name="item-type">GtkAward</property>
+    <child>
+      <object class="GtkAward">
+        <property name="name">demo-inspector</property>
+        <!-- Transformers -->
+        <property name="title" translatable="yes">You got a high-rise double-pump carburetor.</property>
+        <property name="explanation" translatable="yes">Launch the inspector</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">demo-start</property>
+        <!-- The Matrix -->
+        <property name="title" translatable="yes">After this, there is no turning back.</property>
+        <property name="explanation" translatable="yes">Start gtk-demo</property>
+      </object>
+    </child>
+
+    <child>
+      <object class="GtkAward">
+        <property name="name">listbox-reshare</property>
+        <!-- Mean Girls -->
+        <property name="title" translatable="yes">Trying to make fetch happen</property>
+        <property name="explanation" translatable="yes">Reshare a tweet</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">listbox-100th-row</property>
+        <!-- Aladdin -->
+        <property name="title" translatable="yes">The ever impressive, long contained, often imitated, but never duplicated Genie of the lamp.</property>
+        <property name="explanation" translatable="yes">Select a 100th row in a list</property>
+      </object>
+    </child>
+
+    <child>
+      <object class="GtkAward">
+        <property name="name">password-best</property>
+        <!-- Spaceballs -->
+        <property name="title" translatable="yes">I've got the same combination on my luggage!</property>
+        <property name="explanation" translatable="yes">Use "12345" as the password</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">password-correct</property>
+        <!-- Stanley Parable -->
+        <property name="title" translatable="yes">Night Shark 1-1-5</property>
+        <property name="explanation" translatable="yes">Correctly enter a password</property>
+      </object>
+    </child>
+
+    <child>
+      <object class="GtkAward">
+        <property name="name">puzzle-give-up</property>
+        <!-- Pretty Woman -->
+        <property name="title" translatable="yes">Big Mistake. Big. Huge!</property>
+        <property name="explanation" translatable="yes">Close the puzzle without finishing it</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">puzzle-solve</property>
+        <!-- The Incredibles -->
+        <property name="title" translatable="yes">That was totally wicked!</property>
+        <property name="explanation" translatable="yes">Solve a puzzle</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">puzzle-solve-animated</property>
+        <!-- The Phantom Menace -->
+        <property name="title" translatable="yes">A surprise to be sure but a welcome one.</property>
+        <property name="explanation" translatable="yes">Solve an animated puzzle</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkAward">
+        <property name="name">puzzle-solve-large</property>
+        <!-- Portal -->
+        <property name="title" translatable="yes">Science isn't about WHY. It's about WHY NOT?!</property>
+        <property name="explanation" translatable="yes">Solve a puzzle with at least 20 pieces</property>
+      </object>
+    </child>
+  </object>
+</interface>

demos/gtk-demo/awardview.c

@@ -0,0 +1,79 @@
+/* Awards
+ *
+ * This demo demonstrates how to use lists to show the awards you have collected
+ * while exploring this demo.
+ *
+ */
+
+#include <gtk/gtk.h>
+
+/* Include the header for accessing the awards */
+#include "award.h"
+
+static GtkWidget *window = NULL;
+
+#if 0
+static void
+create_listitem (GtkListItem *item, gpointer user_data)
+{
+  GtkWidget *label;
+
+  label = gtk_label_new (NULL);
+  g_object_set (label, "margin", 6, NULL); /* omg, why do we need to do this?! */
+  gtk_label_set_xalign (GTK_LABEL (label), 0);
+  gtk_container_add (GTK_CONTAINER (item), label);
+}
+
+static void
+bind_listitem (GtkListItem *item, gpointer user_data)
+{
+  GtkAward *award = gtk_list_item_get_item (item);
+
+  gtk_label_set_text (GTK_LABEL (gtk_bin_get_child (GTK_BIN (item))),
+                      gtk_award_get_title (award));
+}
+#endif
+
+GtkWidget *
+do_awardview (GtkWidget *do_widget)
+{
+  if (!window)
+    {
+      GtkWidget *sw, *listview;
+      GListModel *list;
+
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Awards");
+      gtk_window_set_default_size (GTK_WINDOW (window), 400, 300);
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      sw = gtk_scrolled_window_new (NULL, NULL);
+      gtk_container_add (GTK_CONTAINER (window), sw);
+
+#if 0
+      listview = gtk_list_view_new ();
+      gtk_list_view_set_functions (GTK_LIST_VIEW (listview),
+                                   create_listitem,
+                                   bind_listitem,
+                                   NULL, NULL);
+#else
+      listview = gtk_list_view_new_with_factory (
+          gtk_builder_list_item_factory_new_from_resource ("/awardview/awardlistitem.ui"));
+#endif
+      list = gtk_award_get_list ();
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), list);
+      g_object_unref (list);
+      gtk_list_view_set_show_separators (GTK_LIST_VIEW (listview), TRUE);
+      gtk_container_add (GTK_CONTAINER (sw), listview);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/demo.gresource.xml

@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
+  <gresource prefix="/">
+    <file>awards.ui</file>
+  </gresource>
   <gresource prefix="/ui">
     <file preprocess="xml-stripblanks">main.ui</file>
     <file preprocess="xml-stripblanks">appmenu.ui</file>
@@ -9,6 +12,9 @@
     <file>application.ui</file>
     <file>menus.ui</file>
   </gresource>
+  <gresource prefix="/awardview">
+    <file>awardlistitem.ui</file>
+  </gresource>
   <gresource prefix="/builder">
     <file>demo.ui</file>
   </gresource>
@@ -111,6 +117,9 @@
     <file>gnome-fs-directory.png</file>
     <file>gnome-fs-regular.png</file>
   </gresource>
+  <gresource prefix="/listview_weather">
+    <file compressed="true">listview_weather.txt</file>
+  </gresource>
   <gresource prefix="/shortcuts">
     <file>shortcuts.ui</file>
     <file>shortcuts-builder.ui</file>
@@ -147,6 +156,7 @@
   </gresource>
   <gresource prefix="/sources">
     <file>application_demo.c</file>
+    <file>awardview.c</file>
     <file>assistant.c</file>
     <file>builder.c</file>
     <file>changedisplay.c</file>
@@ -189,6 +199,8 @@
     <file>infobar.c</file>
     <file>links.c</file>
     <file>listbox.c</file>
+    <file>listview_settings.c</file>
+    <file>listview_weather.c</file>
     <file>list_store.c</file>
     <file>markup.c</file>
     <file>menus.c</file>

demos/gtk-demo/geninclude.py

@@ -13,17 +13,16 @@ in_files = sys.argv[2:]
 file_output = """
 typedef GtkWidget *(*GDoDemoFunc) (GtkWidget *do_widget);
 
-typedef struct _Demo Demo;
+typedef struct _DemoData DemoData;
 
-struct _Demo
+struct _DemoData
 {
-  gchar *name;
-  gchar *title;
-  gchar *filename;
+  char *name;
+  char *title;
+  char *filename;
   GDoDemoFunc func;
-  Demo *children;
+  DemoData *children;
 };
-
 """
 
 # Demo = namedtuple('Demo', ['name', 'title', 'file', 'func'])
@@ -67,7 +66,7 @@ for demo in demos:
 i = 0
 for parent in parents:
     id = parent_ids[i]
-    file_output += "\nDemo child" + str(id) + "[] = {\n"
+    file_output += "\nDemoData child" + str(id) + "[] = {\n"
     # iterate over all demos and check if the name starts with the given parent name
     for child in demos:
         if child[1].startswith(parent + "/"):
@@ -82,7 +81,7 @@ for parent in parents:
 # Sort demos by title
 demos = sorted(demos, key=lambda x: x[1])
 
-file_output += "\nDemo gtk_demos[] = {\n"
+file_output += "\nDemoData gtk_demos[] = {\n"
 for demo in demos:
     # Do not generate one of these for demos with a parent demo
     if "/" not in demo[1]:

demos/gtk-demo/listbox.c

@@ -8,6 +8,7 @@
 #include <gtk/gtk.h>
 #include <stdlib.h>
 #include <string.h>
+#include "award.h"
 
 static GdkPixbuf *avatar_pixbuf_other;
 static GtkWidget *window = NULL;
@@ -234,9 +235,9 @@ reshare_clicked (GtkMessageRow *row,
 {
   GtkMessageRowPrivate *priv = row->priv;
 
+  award ("listbox-reshare");
   priv->message->n_reshares++;
   gtk_message_row_update (row);
-
 }
 
 static void
@@ -255,11 +256,14 @@ gtk_message_row_state_flags_changed (GtkWidget    *widget,
 {
   GtkMessageRowPrivate *priv = GTK_MESSAGE_ROW (widget)->priv;
   GtkStateFlags flags;
+  gboolean visible;
 
   flags = gtk_widget_get_state_flags (widget);
 
-  gtk_widget_set_visible (priv->extra_buttons_box,
-                          flags & (GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_SELECTED));
+  visible = flags & (GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_SELECTED) ? TRUE : FALSE;
+  gtk_widget_set_visible (priv->extra_buttons_box, visible);
+  if (visible && gtk_list_box_row_get_index (GTK_LIST_BOX_ROW (widget)) % 100 == 99)
+    award ("listbox-100th-row");
 
   GTK_WIDGET_CLASS (gtk_message_row_parent_class)->state_flags_changed (widget, previous_state_flags);
 }

demos/gtk-demo/listview_settings.c

@@ -0,0 +1,147 @@
+/* Lists/Settings
+ *
+ * This demo shows a settings viwer for GSettings.
+ *
+ * It demonstrates how to implement support for trees with listview.
+ */
+
+#include <gtk/gtk.h>
+
+static int
+strvcmp (gconstpointer p1,
+         gconstpointer p2)
+{
+  const char * const *s1 = p1;
+  const char * const *s2 = p2;
+
+  return strcmp (*s1, *s2);
+}
+
+static GListModel *
+create_settings_model (gpointer item,
+                       gpointer unused)
+{
+  GSettings *settings = item;
+  char **schemas;
+  GListStore *result;
+  guint i;
+
+  if (settings == NULL)
+    {
+      g_settings_schema_source_list_schemas (g_settings_schema_source_get_default (),
+                                             TRUE,
+                                             &schemas,
+                                             NULL);
+    }
+  else
+    {
+      schemas = g_settings_list_children (settings);
+    }
+
+  if (schemas == NULL || schemas[0] == NULL)
+    {
+      g_free (schemas);
+      return NULL;
+    }
+
+  qsort (schemas, g_strv_length (schemas), sizeof (char *), strvcmp);
+
+  result = g_list_store_new (G_TYPE_SETTINGS);
+  for (i = 0;  schemas[i] != NULL; i++)
+    {
+      GSettings *child;
+
+      if (settings == NULL)
+        child = g_settings_new (schemas[i]);
+      else
+        child = g_settings_get_child (settings, schemas[i]);
+
+      g_list_store_append (result, child);
+      g_object_unref (child);
+    }
+
+  return G_LIST_MODEL (result);
+}
+
+static void
+setup_widget (GtkListItem *list_item,
+              gpointer     unused)
+{
+  GtkWidget *label, *expander;
+
+  expander = gtk_tree_expander_new ();
+  gtk_container_add (GTK_CONTAINER (list_item), expander);
+
+  label = gtk_label_new (NULL);
+  gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+  gtk_tree_expander_set_child (GTK_TREE_EXPANDER (expander), label);
+}
+
+static void
+bind_widget (GtkListItem *list_item,
+             gpointer     unused)
+{
+  GSettings *settings;
+  GtkWidget *label, *expander;
+  GSettingsSchema *schema;
+
+  expander = gtk_bin_get_child (GTK_BIN (list_item));
+  gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (expander), gtk_list_item_get_item (list_item));
+  label = gtk_tree_expander_get_child (GTK_TREE_EXPANDER (expander));
+  settings = gtk_tree_expander_get_item (GTK_TREE_EXPANDER (expander));
+
+  g_object_get (settings, "settings-schema", &schema, NULL);
+
+  gtk_label_set_label (GTK_LABEL (label), g_settings_schema_get_id (schema));
+
+  g_settings_schema_unref (schema);
+}
+
+static GtkWidget *window = NULL;
+
+GtkWidget *
+do_listview_settings (GtkWidget *do_widget)
+{
+  if (window == NULL)
+    {
+      GtkWidget *listview, *sw;;
+      GListModel *model;
+      GtkTreeListModel *treemodel;
+
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Settings");
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK(gtk_widget_destroyed), &window);
+
+      sw = gtk_scrolled_window_new (NULL, NULL);
+      gtk_container_add (GTK_CONTAINER (window), sw);
+    
+      listview = gtk_list_view_new_with_factory (
+        gtk_functions_list_item_factory_new (setup_widget,
+                                             bind_widget,
+                                             NULL, NULL));
+
+      model = create_settings_model (NULL, NULL);
+      treemodel = gtk_tree_list_model_new (FALSE,
+                                           model,
+                                           TRUE,
+                                           create_settings_model,
+                                           NULL,
+                                           NULL);
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (treemodel));
+      g_object_unref (treemodel);
+      g_object_unref (model);
+
+      gtk_container_add (GTK_CONTAINER (sw), listview);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/listview_weather.c

@@ -0,0 +1,316 @@
+/* Lists/Weather
+ *
+ * This demo shows a few of the rarer features of GtkListView and
+ * how they can be used to display weather information.
+ *
+ * The hourly weather info uses a horizontal listview. This is easy
+ * to achieve because GtkListView implements the GtkOrientable interface.
+ *
+ * To make the items in the list stand out more, the listview uses
+ * separators.
+ *
+ * A GtkNoSelectionModel is used to make sure no item in the list can be
+ * selected. All other interactions with the items is still possible.
+ */
+
+#include <gtk/gtk.h>
+
+#define GTK_TYPE_WEATHER_INFO (gtk_weather_info_get_type ())
+
+G_DECLARE_FINAL_TYPE (GtkWeatherInfo, gtk_weather_info, GTK, WEATHER_INFO, GObject)
+
+typedef enum {
+  GTK_WEATHER_CLEAR,
+  GTK_WEATHER_FEW_CLOUDS,
+  GTK_WEATHER_FOG,
+  GTK_WEATHER_OVERCAST,
+  GTK_WEATHER_SCATTERED_SHOWERS,
+  GTK_WEATHER_SHOWERS,
+  GTK_WEATHER_SNOW,
+  GTK_WEATHER_STORM
+} GtkWeatherType;
+
+struct _GtkWeatherInfo
+{
+  GObject parent_instance;
+
+  gint64 timestamp;
+  int temperature;
+  GtkWeatherType weather_type;
+};
+
+struct _GtkWeatherInfoClass
+{
+  GObjectClass parent_class;
+};
+
+static void
+gtk_weather_info_class_init (GtkWeatherInfoClass *klass)
+{
+}
+
+static void
+gtk_weather_info_init (GtkWeatherInfo *self)
+{
+}
+
+G_DEFINE_TYPE (GtkWeatherInfo, gtk_weather_info, G_TYPE_OBJECT);
+
+static GtkWeatherInfo *
+gtk_weather_info_new (GDateTime      *timestamp,
+                      GtkWeatherInfo *copy_from)
+{
+  GtkWeatherInfo *result;
+
+  result = g_object_new (GTK_TYPE_WEATHER_INFO, NULL);
+
+  result->timestamp = g_date_time_to_unix (timestamp);
+  if (copy_from)
+    {
+      result->temperature = copy_from->temperature;
+      result->weather_type = copy_from->weather_type;
+      g_object_unref (copy_from);
+    }
+
+  return result;
+}
+
+static GDateTime *
+parse_timestamp (const char *string,
+                 GTimeZone  *timezone)
+{
+  char *with_seconds;
+  GDateTime *result;
+
+  with_seconds = g_strconcat (string, ":00", NULL);
+  result = g_date_time_new_from_iso8601 (with_seconds, timezone);
+  g_free (with_seconds);
+
+  return result;
+}
+
+static GtkWeatherType
+parse_weather_type (const char     *clouds,
+                    const char     *precip,
+                    GtkWeatherType  fallback)
+{
+  if (strstr (precip, "SN"))
+    return GTK_WEATHER_SNOW;
+
+  if (strstr (precip, "TS"))
+    return GTK_WEATHER_STORM;
+
+  if (strstr (precip, "DZ"))
+    return GTK_WEATHER_SCATTERED_SHOWERS;
+
+  if (strstr (precip, "SH") || strstr (precip, "RA"))
+    return GTK_WEATHER_SHOWERS;
+
+  if (strstr (precip, "FG"))
+    return GTK_WEATHER_FOG;
+
+  if (g_str_equal (clouds, "M") ||
+      g_str_equal (clouds, ""))
+    return fallback;
+
+  if (strstr (clouds, "OVC") ||
+      strstr (clouds, "BKN"))
+    return GTK_WEATHER_OVERCAST;
+
+  if (strstr (clouds, "BKN") ||
+      strstr (clouds, "SCT"))
+    return GTK_WEATHER_FEW_CLOUDS;
+
+  if (strstr (clouds, "VV"))
+    return GTK_WEATHER_FOG;
+
+  return GTK_WEATHER_CLEAR;
+}
+
+static double
+parse_temperature (const char *s,
+                   double      fallback)
+{
+  char *endptr;
+  double d;
+
+  d = g_ascii_strtod (s, &endptr);
+  if (*endptr != '\0')
+    return fallback;
+
+  return d;
+}
+
+static GListModel *
+create_weather_model (void)
+{
+  GListStore *store;
+  GTimeZone *utc;
+  GDateTime *timestamp;
+  GtkWeatherInfo *info;
+  GBytes *data;
+  char **lines;
+  guint i;
+
+  store = g_list_store_new (GTK_TYPE_WEATHER_INFO);
+  data = g_resources_lookup_data ("/listview_weather/listview_weather.txt", 0, NULL);
+  lines = g_strsplit (g_bytes_get_data (data, NULL), "\n", 0);
+
+  utc = g_time_zone_new_utc ();
+  timestamp = g_date_time_new (utc, 2011, 1, 1, 0, 0, 0);
+  info = gtk_weather_info_new (timestamp, NULL);
+  g_list_store_append (store, info);
+
+  for (i = 0; lines[i] != NULL && *lines[i]; i++)
+    {
+      char **fields;
+      GDateTime *date;
+
+      fields = g_strsplit (lines[i], ",", 0);
+      date = parse_timestamp (fields[0], utc);
+      while (g_date_time_difference (date, timestamp) > 30 * G_TIME_SPAN_MINUTE)
+        {
+          GDateTime *new_timestamp = g_date_time_add_hours (timestamp, 1);
+          g_date_time_unref (timestamp);
+          timestamp = new_timestamp;
+          info = gtk_weather_info_new (timestamp, info);
+          g_list_store_append (store, info);
+        }
+
+      info->temperature = parse_temperature (fields[1], info->temperature);
+      info->weather_type = parse_weather_type (fields[2], fields[3], info->weather_type);
+      g_date_time_unref (date);
+      g_strfreev (fields);
+    }
+
+  g_strfreev (lines);
+  g_bytes_unref (data);
+  g_time_zone_unref (utc);
+
+  return G_LIST_MODEL (store);
+}
+
+static void
+setup_widget (GtkListItem *list_item,
+              gpointer     unused)
+{
+  GtkWidget *box, *child;
+
+  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_container_add (GTK_CONTAINER (list_item), box);
+
+  child = gtk_label_new (NULL);
+  gtk_label_set_width_chars (GTK_LABEL (child), 5);
+  gtk_container_add (GTK_CONTAINER (box), child);
+
+  child = gtk_image_new ();
+  gtk_image_set_icon_size (GTK_IMAGE (child), GTK_ICON_SIZE_LARGE);
+  gtk_container_add (GTK_CONTAINER (box), child);
+
+  child = gtk_label_new (NULL);
+  gtk_widget_set_vexpand (child, TRUE);
+  gtk_widget_set_valign (child, GTK_ALIGN_END);
+  gtk_label_set_width_chars (GTK_LABEL (child), 4);
+  gtk_container_add (GTK_CONTAINER (box), child);
+}
+
+static void
+bind_widget (GtkListItem *list_item,
+             gpointer     unused)
+{
+  GtkWidget *box, *child;
+  GtkWeatherInfo *info;
+  GDateTime *timestamp;
+  char *s;
+
+  box = gtk_bin_get_child (GTK_BIN (list_item));
+  info = gtk_list_item_get_item (list_item);
+
+  child = gtk_widget_get_first_child (box);
+  timestamp = g_date_time_new_from_unix_utc (info->timestamp);
+  s = g_date_time_format (timestamp, "%R");
+  gtk_label_set_text (GTK_LABEL (child), s);
+  g_free (s);
+  g_date_time_unref (timestamp);
+
+  child = gtk_widget_get_next_sibling (child);
+  switch (info->weather_type)
+  {
+  case GTK_WEATHER_CLEAR:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-clear-symbolic");
+    break;
+  case GTK_WEATHER_FEW_CLOUDS:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-few-clouds-symbolic");
+    break;
+  case GTK_WEATHER_FOG:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-fog-symbolic");
+    break;
+  case GTK_WEATHER_OVERCAST:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-overcast-symbolic");
+    break;
+  case GTK_WEATHER_SCATTERED_SHOWERS:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-showers-scattered-symbolic");
+    break;
+  case GTK_WEATHER_SHOWERS:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-showers-symbolic");
+    break;
+  case GTK_WEATHER_SNOW:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-snow-symbolic");
+    break;
+  case GTK_WEATHER_STORM:
+    gtk_image_set_from_icon_name (GTK_IMAGE (child), "weather-storm-symbolic");
+    break;
+  default:
+    gtk_image_clear (GTK_IMAGE (child));
+    break;
+  }
+
+
+  child = gtk_widget_get_next_sibling (child);
+  s = g_strdup_printf ("%d°", info->temperature);
+  gtk_label_set_text (GTK_LABEL (child), s);
+  g_free (s);
+}
+
+static GtkWidget *window = NULL;
+
+GtkWidget *
+do_listview_weather (GtkWidget *do_widget)
+{
+  if (window == NULL)
+    {
+      GtkWidget *listview, *sw;;
+      GListModel *model, *selection;
+
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Weather");
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK(gtk_widget_destroyed), &window);
+
+      sw = gtk_scrolled_window_new (NULL, NULL);
+      gtk_container_add (GTK_CONTAINER (window), sw);
+    
+      listview = gtk_list_view_new_with_factory (
+        gtk_functions_list_item_factory_new (setup_widget,
+                                             bind_widget,
+                                             NULL, NULL));
+      gtk_orientable_set_orientation (GTK_ORIENTABLE (listview), GTK_ORIENTATION_HORIZONTAL);
+      gtk_list_view_set_show_separators (GTK_LIST_VIEW (listview), TRUE);
+      model = create_weather_model ();
+      selection = G_LIST_MODEL (gtk_no_selection_new (model));
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), selection);
+      g_object_unref (selection);
+      g_object_unref (model);
+
+      gtk_container_add (GTK_CONTAINER (sw), listview);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/main.c

@@ -8,6 +8,7 @@
 #include <gtk/gtk.h>
 #include <glib/gstdio.h>
 
+#include "award.h"
 #include "demos.h"
 
 static GtkWidget *info_view;
@@ -15,10 +16,32 @@ static GtkWidget *source_view;
 
 static gchar *current_file = NULL;
 
+static GtkWidget *window;
 static GtkWidget *notebook;
-static GtkWidget *treeview;
+static GtkWidget *listview;
+static GtkSingleSelection *selection;
 static GtkWidget *headerbar;
 
+typedef struct _GtkDemo GtkDemo;
+struct _GtkDemo
+{
+  GObject parent_instance;
+
+  const char *name;
+  const char *title;
+  const char *filename;
+  GDoDemoFunc func;
+  GListModel *children_model;
+};
+
+# define GTK_TYPE_DEMO (gtk_demo_get_type ())
+G_DECLARE_FINAL_TYPE (GtkDemo, gtk_demo, GTK, DEMO, GObject);
+
+G_DEFINE_TYPE (GtkDemo, gtk_demo, G_TYPE_OBJECT);
+
+static void gtk_demo_init (GtkDemo *self) {}
+static void gtk_demo_class_init (GtkDemoClass *klass) {}
+
 enum {
   NAME_COLUMN,
   TITLE_COLUMN,
@@ -111,69 +134,7 @@ activate_inspector (GSimpleAction *action,
                     gpointer       user_data)
 {
   gtk_window_set_interactive_debugging (TRUE);
-}
-
-static void
-window_closed_cb (GtkWidget *window, gpointer data)
-{
-  CallbackData *cbdata = data;
-  GtkTreeIter iter;
-  PangoStyle style;
-
-  gtk_tree_model_get_iter (cbdata->model, &iter, cbdata->path);
-  gtk_tree_model_get (GTK_TREE_MODEL (cbdata->model), &iter,
-                      STYLE_COLUMN, &style,
-                      -1);
-  if (style == PANGO_STYLE_ITALIC)
-    gtk_tree_store_set (GTK_TREE_STORE (cbdata->model), &iter,
-                        STYLE_COLUMN, PANGO_STYLE_NORMAL,
-                        -1);
-
-  gtk_tree_path_free (cbdata->path);
-  g_free (cbdata);
-}
-
-static void
-run_example_for_row (GtkWidget    *window,
-                     GtkTreeModel *model,
-                     GtkTreeIter  *iter)
-{
-  PangoStyle style;
-  GDoDemoFunc func;
-  GtkWidget *demo;
-
-  gtk_tree_model_get (GTK_TREE_MODEL (model),
-                      iter,
-                      FUNC_COLUMN, &func,
-                      STYLE_COLUMN, &style,
-                      -1);
-
-  if (func)
-    {
-      gtk_tree_store_set (GTK_TREE_STORE (model),
-                          iter,
-                          STYLE_COLUMN, (style == PANGO_STYLE_ITALIC ? PANGO_STYLE_NORMAL : PANGO_STYLE_ITALIC),
-                          -1);
-      demo = (func) (window);
-
-      if (demo != NULL)
-        {
-          CallbackData *cbdata;
-
-          cbdata = g_new (CallbackData, 1);
-          cbdata->model = model;
-          cbdata->path = gtk_tree_model_get_path (model, iter);
-
-          if (GTK_IS_WINDOW (demo))
-            {
-              gtk_window_set_transient_for (GTK_WINDOW (demo), GTK_WINDOW (window));
-              gtk_window_set_modal (GTK_WINDOW (demo), TRUE);
-            }
-
-          g_signal_connect (demo, "destroy",
-                            G_CALLBACK (window_closed_cb), cbdata);
-        }
-    }
+  award ("demo-inspector");
 }
 
 static void
@@ -181,14 +142,19 @@ activate_run (GSimpleAction *action,
               GVariant      *parameter,
               gpointer       user_data)
 {
-  GtkWidget *window = user_data;
-  GtkTreeSelection *selection;
-  GtkTreeModel *model;
-  GtkTreeIter iter;
+  GtkTreeListRow *row = gtk_single_selection_get_selected_item (selection);
+  GtkDemo *demo = gtk_tree_list_row_get_item (row);
+  GtkWidget *result;
 
-  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
-  if (gtk_tree_selection_get_selected (selection, &model, &iter))
-    run_example_for_row (window, model, &iter);
+  if (!demo->func)
+    return;
+
+  result = demo->func(window);
+  if (result != NULL && GTK_IS_WINDOW (result))
+    {
+      gtk_window_set_transient_for (GTK_WINDOW (result), GTK_WINDOW (window));
+      gtk_window_set_modal (GTK_WINDOW (result), TRUE);
+    }
 }
 
 /* Stupid syntax highlighting.
@@ -888,81 +854,74 @@ load_file (const gchar *demoname,
 }
 
 static void
-selection_cb (GtkTreeSelection *selection,
-              GtkTreeModel     *model)
+
+selection_cb (GtkSingleSelection *selection,
+              GParamSpec         *pspec,
+              gpointer            user_data)
 {
-  GtkTreeIter iter;
-  char *name;
-  char *filename;
-  char *title;
+  GtkTreeListRow *row = gtk_single_selection_get_selected_item (selection);
+  GtkDemo *demo = gtk_tree_list_row_get_item (row);
 
-  if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
-    return;
+  if (demo->filename)
+    load_file (demo->name, demo->filename);
 
-  gtk_tree_model_get (model, &iter,
-                      NAME_COLUMN, &name,
-                      TITLE_COLUMN, &title,
-                      FILENAME_COLUMN, &filename,
-                      -1);
-
-  if (filename)
-    load_file (name, filename);
-
-  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), title);
-
-  g_free (name);
-  g_free (title);
-  g_free (filename);
+  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), demo->title);
 }
 
-static void
-populate_model (GtkTreeModel *model)
+
+
+static GListModel *
+create_demo_model (void)
 {
-  Demo *d = gtk_demos;
+  GListStore *store = g_list_store_new (GTK_TYPE_DEMO);
+  DemoData *demo = gtk_demos;
 
-  /* this code only supports 1 level of children. If we
-   * want more we probably have to use a recursing function.
-   */
-  while (d->title)
+  while (demo->title)
     {
-      Demo *children = d->children;
-      GtkTreeIter iter;
+      GtkDemo *d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
+      DemoData *children = demo->children;
 
-      gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
+      d->name = demo->name;
+      d->title = demo->title;
+      d->filename = demo->filename;
+      d->func = demo->func;
 
-      gtk_tree_store_set (GTK_TREE_STORE (model),
-                          &iter,
-                          NAME_COLUMN, d->name,
-                          TITLE_COLUMN, d->title,
-                          FILENAME_COLUMN, d->filename,
-                          FUNC_COLUMN, d->func,
-                          STYLE_COLUMN, PANGO_STYLE_NORMAL,
-                          -1);
+      g_list_store_append (store, d);
 
-      d++;
-
-      if (!children)
-        continue;
-
-      while (children->title)
+      if (children)
         {
-          GtkTreeIter child_iter;
+          d->children_model = G_LIST_MODEL (g_list_store_new (GTK_TYPE_DEMO));
 
-          gtk_tree_store_append (GTK_TREE_STORE (model), &child_iter, &iter);
+          while (children->title)
+            {
+              GtkDemo *child = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
 
-          gtk_tree_store_set (GTK_TREE_STORE (model),
-                              &child_iter,
-                              NAME_COLUMN, children->name,
-                              TITLE_COLUMN, children->title,
-                              FILENAME_COLUMN, children->filename,
-                              FUNC_COLUMN, children->func,
-                              STYLE_COLUMN, PANGO_STYLE_NORMAL,
-                              -1);
+              child->name = children->name;
+              child->title = children->title;
+              child->filename = children->filename;
+              child->func = children->func;
 
-          children++;
+              g_list_store_append (G_LIST_STORE (d->children_model), child);
+              children++;
+            }
         }
+
+      demo++;
     }
 
+  return G_LIST_MODEL (store);
+}
+
+static GListModel *
+get_child_model (gpointer item,
+                 gpointer user_data)
+{
+  GtkDemo *demo = item;
+
+  if (demo->children_model)
+    return g_object_ref (G_LIST_MODEL (demo->children_model));
+
+  return NULL;
 }
 
 static void
@@ -982,22 +941,6 @@ startup (GApplication *app)
   g_object_unref (builder);
 }
 
-static void
-row_activated_cb (GtkWidget         *tree_view,
-                  GtkTreePath       *path,
-                  GtkTreeViewColumn *column)
-{
-  GtkTreeIter iter;
-  GtkWidget *window;
-  GtkTreeModel *model;
-
-  window = GTK_WIDGET (gtk_widget_get_root (tree_view));
-  model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
-  gtk_tree_model_get_iter (model, &iter, path);
-
-  run_example_for_row (window, model, &iter);
-}
-
 static void
 start_cb (GtkMenuItem *item, GtkWidget *scrollbar)
 {
@@ -1024,19 +967,50 @@ scrollbar_popup (GtkWidget *scrollbar, GtkWidget *menu)
   return TRUE;
 }
 
+static void
+setup_demo_row_func (GtkListItem *list_item,
+                     gpointer     user_data)
+{
+  GtkWidget *label;
+  GtkWidget *expander;
+
+  expander = gtk_tree_expander_new ();
+
+  label = gtk_label_new ("");
+  gtk_widget_set_halign (label, GTK_ALIGN_START);
+
+  gtk_tree_expander_set_child (GTK_TREE_EXPANDER (expander), label);
+  gtk_container_add (GTK_CONTAINER (list_item), expander);
+}
+
+static void
+bind_demo_row_func (GtkListItem *list_item,
+                    gpointer     user_data)
+{
+  GtkWidget *label, *expander;
+  GtkTreeListRow *row;
+  GtkDemo *demo;
+
+  row = gtk_list_item_get_item (list_item);
+  demo = gtk_tree_list_row_get_item (row);
+  expander = gtk_bin_get_child (GTK_BIN (list_item));
+  gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (expander), row);
+  label = gtk_tree_expander_get_child (GTK_TREE_EXPANDER (expander));
+
+  gtk_label_set_label (GTK_LABEL (label), demo->title);
+}
+
 static void
 activate (GApplication *app)
 {
   GtkBuilder *builder;
-  GtkWindow *window;
-  GtkWidget *widget;
-  GtkTreeModel *model;
-  GtkTreeIter iter;
   GError *error = NULL;
   GtkWidget *sw;
   GtkWidget *scrollbar;
   GtkWidget *menu;
   GtkWidget *item;
+  GListModel *listmodel;
+  GtkTreeListModel *treemodel;
 
   static GActionEntry win_entries[] = {
     { "run", activate_run, NULL, NULL, NULL }
@@ -1050,8 +1024,8 @@ activate (GApplication *app)
       exit (1);
     }
 
-  window = (GtkWindow *)gtk_builder_get_object (builder, "window");
-  gtk_application_add_window (GTK_APPLICATION (app), window);
+  window = (GtkWidget *)gtk_builder_get_object (builder, "window");
+  gtk_application_add_window (GTK_APPLICATION (app), GTK_WINDOW (window));
   g_action_map_add_action_entries (G_ACTION_MAP (window),
                                    win_entries, G_N_ELEMENTS (win_entries),
                                    window);
@@ -1061,8 +1035,7 @@ activate (GApplication *app)
   info_view = (GtkWidget *)gtk_builder_get_object (builder, "info-textview");
   source_view = (GtkWidget *)gtk_builder_get_object (builder, "source-textview");
   headerbar = (GtkWidget *)gtk_builder_get_object (builder, "headerbar");
-  treeview = (GtkWidget *)gtk_builder_get_object (builder, "treeview");
-  model = gtk_tree_view_get_model (GTK_TREE_VIEW (treeview));
+  listview = (GtkWidget *)gtk_builder_get_object (builder, "listview");
 
   sw = (GtkWidget *)gtk_builder_get_object (builder, "source-scrolledwindow");
   scrollbar = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
@@ -1081,17 +1054,25 @@ activate (GApplication *app)
 
   load_file (gtk_demos[0].name, gtk_demos[0].filename);
 
-  populate_model (model);
+  listmodel = create_demo_model ();
+  treemodel = gtk_tree_list_model_new (FALSE,
+                                       G_LIST_MODEL (listmodel),
+                                       FALSE,
+                                       get_child_model,
+                                       NULL,
+                                       NULL);
 
-  g_signal_connect (treeview, "row-activated", G_CALLBACK (row_activated_cb), model);
+  gtk_list_view_set_factory (GTK_LIST_VIEW (listview),
+                             gtk_functions_list_item_factory_new (setup_demo_row_func,
+                                                                  bind_demo_row_func,
+                                                                  NULL,
+                                                                  NULL));
+  selection = gtk_single_selection_new (G_LIST_MODEL (treemodel));
+  g_signal_connect (selection, "notify::selected-item", G_CALLBACK (selection_cb), NULL);
+  gtk_list_view_set_model (GTK_LIST_VIEW (listview),
+                           G_LIST_MODEL (selection));
 
-  widget = (GtkWidget *)gtk_builder_get_object (builder, "treeview-selection");
-  g_signal_connect (widget, "changed", G_CALLBACK (selection_cb), model);
-
-  gtk_tree_model_get_iter_first (gtk_tree_view_get_model (GTK_TREE_VIEW (treeview)), &iter);
-  gtk_tree_selection_select_iter (GTK_TREE_SELECTION (widget), &iter);
-
-  gtk_tree_view_collapse_all (GTK_TREE_VIEW (treeview));
+  award ("demo-start");
 
   gtk_widget_show (GTK_WIDGET (window));
 
@@ -1108,7 +1089,7 @@ auto_quit (gpointer data)
 static void
 list_demos (void)
 {
-  Demo *d, *c;
+  DemoData *d, *c;
 
   d = gtk_demos;
 
@@ -1135,7 +1116,7 @@ command_line (GApplication            *app,
   const gchar *name = NULL;
   gboolean autoquit = FALSE;
   gboolean list = FALSE;
-  Demo *d, *c;
+  DemoData *d, *c;
   GDoDemoFunc func = 0;
   GtkWidget *window, *demo;
 

demos/gtk-demo/main.ui

@@ -66,32 +66,9 @@
                 <property name="can-focus">1</property>
                 <property name="hscrollbar-policy">never</property>
                 <property name="min-content-width">150</property>
+
                 <child>
-                  <object class="GtkTreeView" id="treeview">
-                    <property name="can-focus">1</property>
-                    <property name="model">treestore</property>
-                    <property name="headers-visible">0</property>
-                    <child internal-child="selection">
-                      <object class="GtkTreeSelection" id="treeview-selection">
-                        <property name="mode">browse</property>
-                      </object>
-                    </child>
-                    <child>
-                      <object class="GtkTreeViewColumn">
-                        <child>
-                          <object class="GtkCellRendererText"/>
-                          <attributes>
-                            <attribute name="style">4</attribute>
-                            <attribute name="text">1</attribute>
-                          </attributes>
-                        </child>
-                        <child>
-                          <object class="GtkCellRendererText">
-                            <property name="text">  </property>
-                          </object>
-                        </child>
-                      </object>
-                    </child>
+                  <object class="GtkListView" id="listview">
                   </object>
                 </child>
               </object>

demos/gtk-demo/meson.build

@@ -3,6 +3,7 @@
 demos = files([
   'application_demo.c',
   'assistant.c',
+  'awardview.c',
   'builder.c',
   'changedisplay.c',
   'clipboard.c',
@@ -43,6 +44,8 @@ demos = files([
   'listbox.c',
   'flowbox.c',
   'list_store.c',
+  'listview_settings.c',
+  'listview_weather.c',
   'markup.c',
   'menus.c',
   'modelbutton.c',
@@ -85,6 +88,7 @@ demos = files([
 gtkdemo_deps = [ libgtk_dep, ]
 
 extra_demo_sources = files(['main.c',
+                            'award.c',
                             'gtkfishbowl.c',
                             'fontplane.c',
                             'gtkgears.c',

demos/gtk-demo/password_entry.c

@@ -11,6 +11,8 @@
 #include <glib/gi18n.h>
 #include <gtk/gtk.h>
 
+#include "award.h"
+
 static GtkWidget *entry;
 static GtkWidget *entry2;
 static GtkWidget *button;
@@ -25,6 +27,18 @@ update_button (GObject    *object,
 
   gtk_widget_set_sensitive (button,
                             text[0] != '\0' && g_str_equal (text, text2));
+
+  if (g_str_equal (text, text2) &&
+      g_ascii_strcasecmp (text, "12345") == 0)
+    award ("password-best");
+}
+
+static void
+button_pressed (GtkButton *button,
+                GtkWidget *window)
+{
+  award ("password-correct");
+  gtk_widget_destroy (window);
 }
 
 GtkWidget *
@@ -72,7 +86,7 @@ do_password_entry (GtkWidget *do_widget)
 
       button = gtk_button_new_with_mnemonic ("_Done");
       gtk_style_context_add_class (gtk_widget_get_style_context (button), "suggested-action");
-      g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
+      g_signal_connect (button, "clicked", G_CALLBACK (button_pressed), window);
       gtk_widget_set_sensitive (button, FALSE);
       gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
 

demos/gtk-demo/sliding_puzzle.c

@@ -11,6 +11,9 @@
 #include "puzzlepiece.h"
 #include "paintable.h"
 
+/* Give out awards */
+#include "award.h"
+
 static GtkWidget *window = NULL;
 static GtkWidget *frame = NULL;
 static GtkWidget *choices = NULL;
@@ -156,6 +159,14 @@ check_solved (GtkWidget *grid)
   picture = gtk_grid_get_child_at (GTK_GRID (grid), pos_x, pos_y);
   gtk_picture_set_paintable (GTK_PICTURE (picture), piece);
 
+  /* Hand out a bunch of awards
+   */
+  award ("puzzle-solve");
+  if ((gdk_paintable_get_flags (piece) & GDK_PAINTABLE_STATIC_CONTENTS) == 0)
+    award ("puzzle-solve-animated");
+  if (height * width > 20)
+    award ("puzzle-solve-large");
+
   return TRUE;
 }
 
@@ -401,6 +412,18 @@ add_choice (GtkWidget    *choices,
   gtk_container_add (GTK_CONTAINER (choices), icon);
 }
 
+static void
+widget_destroyed (GtkWidget      *widget,
+		  GtkWidget     **widget_pointer)
+{
+  if (widget_pointer)
+    *widget_pointer = NULL;
+
+  if (!solved)
+    award ("puzzle-give-up");
+}
+
+
 GtkWidget *
 do_sliding_puzzle (GtkWidget *do_widget)
 {
@@ -469,7 +492,7 @@ do_sliding_puzzle (GtkWidget *do_widget)
       gtk_window_set_titlebar (GTK_WINDOW (window), header);
       gtk_window_set_default_size (GTK_WINDOW (window), 400, 300);
       g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
+                        G_CALLBACK (widget_destroyed), &window);
 
       frame = gtk_aspect_frame_new (NULL, 0.5, 0.5, (float) gdk_paintable_get_intrinsic_aspect_ratio (puzzle), FALSE);
       gtk_container_add (GTK_CONTAINER (window), frame);

docs/reference/gtk/gtk4-docs.xml

@@ -53,6 +53,7 @@
       <xi:include href="xml/gtkselectionmodel.xml" />
       <xi:include href="xml/gtknoselection.xml" />
       <xi:include href="xml/gtksingleselection.xml" />
+      <xi:include href="xml/gtkdirectorylist.xml" />
     </chapter>
 
     <chapter id="Application">
@@ -87,6 +88,9 @@
       <xi:include href="xml/gtkrevealer.xml" />
       <xi:include href="xml/gtklistbox.xml" />
       <xi:include href="xml/gtkflowbox.xml" />
+      <xi:include href="xml/gtklistview.xml" />
+      <xi:include href="xml/gtkgridview.xml" />
+      <xi:include href="xml/gtktreeexpander.xml" />
       <xi:include href="xml/gtkstack.xml" />
       <xi:include href="xml/gtkstackswitcher.xml" />
       <xi:include href="xml/gtkstacksidebar.xml" />

docs/reference/gtk/gtk4-sections.txt

@@ -493,6 +493,71 @@ gtk_single_selection_set_can_unselect
 gtk_single_selection_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtklistitem</FILE>
+<TITLE>GtkListItem</TITLE>
+GtkListItem
+gtk_list_item_get_item
+gtk_list_item_get_position
+gtk_list_item_get_selected
+gtk_list_item_get_selectable
+gtk_list_item_set_selectable
+<SUBSECTION Standard>
+GTK_LIST_ITEM
+GTK_LIST_ITEM_CLASS
+GTK_LIST_ITEM_GET_CLASS
+GTK_IS_LIST_ITEM
+GTK_IS_LIST_ITEM_CLASS
+GTK_TYPE_LIST_ITEM
+<SUBSECTION Private>
+gtk_list_item_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtklistview</FILE>
+<TITLE>GtkListView</TITLE>
+GtkListView
+gtk_list_view_new
+gtk_list_view_new_with_factory
+gtk_list_view_set_factory
+gtk_list_view_get_factory
+gtk_list_view_set_model
+gtk_list_view_get_model
+gtk_list_view_set_show_separators
+gtk_list_view_get_show_separators
+<SUBSECTION Standard>
+GTK_LIST_VIEW
+GTK_LIST_VIEW_CLASS
+GTK_LIST_VIEW_GET_CLASS
+GTK_IS_LIST_VIEW
+GTK_IS_LIST_VIEW_CLASS
+GTK_TYPE_LIST_VIEW
+<SUBSECTION Private>
+gtk_list_view_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtkgridview</FILE>
+<TITLE>GtkGridView</TITLE>
+GtkGridView
+gtk_grid_view_new
+gtk_grid_view_set_model
+gtk_grid_view_get_model
+gtk_grid_view_set_max_columns
+gtk_grid_view_get_max_columns
+gtk_grid_view_set_min_columns
+gtk_grid_view_get_min_columns
+<SUBSECTION Standard>
+GTK_GRID_VIEW
+GTK_GRID_VIEW_CLASS
+GTK_GRID_VIEW_GET_CLASS
+GTK_IS_GRID_VIEW
+GTK_IS_GRID_VIEW_CLASS
+GTK_TYPE_GRID_VIEW
+<SUBSECTION Private>
+gtk_grid_view_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkbuildable</FILE>
 GtkBuildable
@@ -1322,6 +1387,32 @@ GTK_TYPE_FILE_FILTER
 gtk_file_filter_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkdirectorylist</FILE>
+<TITLE>GtkDirectoryList</TITLE>
+GtkDirectoryList
+gtk_directory_list_new
+gtk_directory_list_get_attributes
+gtk_directory_list_set_attributes
+gtk_directory_list_get_file
+gtk_directory_list_set_file
+gtk_directory_list_get_io_priority
+gtk_directory_list_set_io_priority
+gtk_directory_list_is_loading
+gtk_directory_list_get_error
+<SUBSECTION Standard>
+GTK_DIRECTORY_LIST
+GTK_IS_DIRECTORY_LIST
+GTK_TYPE_DIRECTORY_LIST
+GTK_DIRECTORY_LIST_CLASS
+GTK_IS_DIRECTORY_LIST_CLASS
+GTK_DIRECTORY_LIST_GET_CLASS
+<SUBSECTION Private>
+gtk_directory_list_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtkspinbutton</FILE>
 <SECTION>
 <FILE>gtkfilterlistmodel</FILE>
 <TITLE>GtkFilterListModel</TITLE>
@@ -3464,6 +3555,26 @@ gtk_tree_list_model_get_type
 gtk_tree_list_row_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtktreeexpander</FILE>
+<TITLE>GtkTreeExpander</TITLE>
+gtk_tree_expander_new
+gtk_tree_expander_get_child
+gtk_tree_expander_set_child
+gtk_tree_expander_get_item
+gtk_tree_expander_get_list_row
+gtk_tree_expander_set_list_row
+<SUBSECTION Standard>
+GTK_TREE_EXPANDER
+GTK_IS_TREE_EXPANDER
+GTK_TYPE_TREE_EXPANDER
+GTK_TREE_EXPANDER_CLASS
+GTK_IS_TREE_EXPANDER_CLASS
+GTK_TREE_EXPANDER_GET_CLASS
+<SUBSECTION Private>
+gtk_tree_expander_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtktreemodel</FILE>
 <TITLE>GtkTreeModel</TITLE>

gdk/wayland/gdkwaylandsurface.h

@@ -45,9 +45,6 @@ typedef struct _GdkWaylandSurfaceClass GdkWaylandSurfaceClass;
 GDK_AVAILABLE_IN_ALL
 GType                    gdk_wayland_surface_get_type             (void);
 
-GDK_AVAILABLE_IN_ALL
-GdkSurface *              gdk_wayland_surface_new_subsurface       (GdkDisplay            *display,
-                                                                    const GdkRectangle    *position);
 GDK_AVAILABLE_IN_ALL
 struct wl_surface       *gdk_wayland_surface_get_wl_surface       (GdkSurface *surface);
 

gtk/gtk.h

@@ -55,6 +55,7 @@
 #include <gtk/gtkbox.h>
 #include <gtk/gtkbuildable.h>
 #include <gtk/gtkbuilder.h>
+#include <gtk/gtkbuilderlistitemfactory.h>
 #include <gtk/gtkbutton.h>
 #include <gtk/gtkcalendar.h>
 #include <gtk/gtkcellarea.h>
@@ -90,6 +91,7 @@
 #include <gtk/gtkcustomlayout.h>
 #include <gtk/gtkdebug.h>
 #include <gtk/gtkdialog.h>
+#include <gtk/gtkdirectorylist.h>
 #include <gtk/gtkdnd.h>
 #include <gtk/gtkdragdest.h>
 #include <gtk/gtkdragsource.h>
@@ -121,6 +123,7 @@
 #include <gtk/gtkfontchooserdialog.h>
 #include <gtk/gtkfontchooserwidget.h>
 #include <gtk/gtkframe.h>
+#include <gtk/gtkfunctionslistitemfactory.h>
 #include <gtk/gtkgesture.h>
 #include <gtk/gtkgestureclick.h>
 #include <gtk/gtkgesturedrag.h>
@@ -134,6 +137,7 @@
 #include <gtk/gtkglarea.h>
 #include <gtk/gtkgrid.h>
 #include <gtk/gtkgridlayout.h>
+#include <gtk/gtkgridview.h>
 #include <gtk/gtkheaderbar.h>
 #include <gtk/gtkicontheme.h>
 #include <gtk/gtkiconview.h>
@@ -148,7 +152,10 @@
 #include <gtk/gtklevelbar.h>
 #include <gtk/gtklinkbutton.h>
 #include <gtk/gtklistbox.h>
+#include <gtk/gtklistitem.h>
+#include <gtk/gtklistitemfactory.h>
 #include <gtk/gtkliststore.h>
+#include <gtk/gtklistview.h>
 #include <gtk/gtklockbutton.h>
 #include <gtk/gtkmain.h>
 #include <gtk/gtkmaplistmodel.h>
@@ -243,6 +250,7 @@
 #include <gtk/gtktooltip.h>
 #include <gtk/gtktestutils.h>
 #include <gtk/gtktreednd.h>
+#include <gtk/gtktreeexpander.h>
 #include <gtk/gtktreelistmodel.h>
 #include <gtk/gtktreemodel.h>
 #include <gtk/gtktreemodelfilter.h>

gtk/gtkbuilderlistitemfactory.c

@@ -0,0 +1,137 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtkbuilderlistitemfactory.h"
+
+#include "gtkbuilder.h"
+#include "gtklistitemfactoryprivate.h"
+#include "gtklistitemprivate.h"
+
+struct _GtkBuilderListItemFactory
+{
+  GtkListItemFactory parent_instance;
+
+  GBytes *bytes;
+};
+
+struct _GtkBuilderListItemFactoryClass
+{
+  GtkListItemFactoryClass parent_class;
+};
+
+G_DEFINE_TYPE (GtkBuilderListItemFactory, gtk_builder_list_item_factory, GTK_TYPE_LIST_ITEM_FACTORY)
+
+static void
+gtk_builder_list_item_factory_setup (GtkListItemFactory *factory,
+                                     GtkListItem        *list_item)
+{
+  GtkBuilderListItemFactory *self = GTK_BUILDER_LIST_ITEM_FACTORY (factory);
+  GtkBuilder *builder;
+  GError *error = NULL;
+
+  GTK_LIST_ITEM_FACTORY_CLASS (gtk_builder_list_item_factory_parent_class)->setup (factory, list_item);
+
+  builder = gtk_builder_new ();
+
+  if (!gtk_builder_extend_with_template  (builder, GTK_WIDGET (list_item), G_OBJECT_TYPE (list_item),
+					  (const gchar *)g_bytes_get_data (self->bytes, NULL),
+					  g_bytes_get_size (self->bytes),
+					  &error))
+    {
+      g_critical ("Error building template for list item: %s", error->message);
+      g_error_free (error);
+
+      /* This should never happen, if the template XML cannot be built
+       * then it is a critical programming error.
+       */
+      g_object_unref (builder);
+      return;
+    }
+
+  gtk_builder_connect_signals (builder, list_item);
+
+  g_object_unref (builder);
+}
+
+static void
+gtk_builder_list_item_factory_finalize (GObject *object)
+{
+  GtkBuilderListItemFactory *self = GTK_BUILDER_LIST_ITEM_FACTORY (object);
+
+  g_bytes_unref (self->bytes);
+
+  G_OBJECT_CLASS (gtk_builder_list_item_factory_parent_class)->finalize (object);
+}
+
+static void
+gtk_builder_list_item_factory_class_init (GtkBuilderListItemFactoryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkListItemFactoryClass *factory_class = GTK_LIST_ITEM_FACTORY_CLASS (klass);
+
+  object_class->finalize = gtk_builder_list_item_factory_finalize;
+
+  factory_class->setup = gtk_builder_list_item_factory_setup;
+}
+
+static void
+gtk_builder_list_item_factory_init (GtkBuilderListItemFactory *self)
+{
+}
+
+GtkListItemFactory *
+gtk_builder_list_item_factory_new_from_bytes (GBytes *bytes)
+{
+  GtkBuilderListItemFactory *self;
+
+  g_return_val_if_fail (bytes != NULL, NULL);
+
+  self = g_object_new (GTK_TYPE_BUILDER_LIST_ITEM_FACTORY, NULL);
+
+  self->bytes = g_bytes_ref (bytes);
+
+  return GTK_LIST_ITEM_FACTORY (self);
+}
+
+GtkListItemFactory *
+gtk_builder_list_item_factory_new_from_resource (const char *resource_path)
+{
+  GtkListItemFactory *result;
+  GError *error = NULL;
+  GBytes *bytes;
+
+  g_return_val_if_fail (resource_path != NULL, NULL);
+
+  bytes = g_resources_lookup_data (resource_path, 0, &error);
+  if (!bytes)
+    {
+      g_critical ("Unable to load resource for list item template: %s", error->message);
+      g_error_free (error);
+      return NULL;
+    }
+
+  result = gtk_builder_list_item_factory_new_from_bytes (bytes);
+
+  g_bytes_unref (bytes);
+
+  return result;
+}
+

gtk/gtkbuilderlistitemfactory.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_BUILDER_LIST_ITEM_FACTORY_H__
+#define __GTK_BUILDER_LIST_ITEM_FACTORY_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtklistitemfactory.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_BUILDER_LIST_ITEM_FACTORY         (gtk_builder_list_item_factory_get_type ())
+#define GTK_BUILDER_LIST_ITEM_FACTORY(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_BUILDER_LIST_ITEM_FACTORY, GtkBuilderListItemFactory))
+#define GTK_BUILDER_LIST_ITEM_FACTORY_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_BUILDER_LIST_ITEM_FACTORY, GtkBuilderListItemFactoryClass))
+#define GTK_IS_BUILDER_LIST_ITEM_FACTORY(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_BUILDER_LIST_ITEM_FACTORY))
+#define GTK_IS_BUILDER_LIST_ITEM_FACTORY_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_BUILDER_LIST_ITEM_FACTORY))
+#define GTK_BUILDER_LIST_ITEM_FACTORY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_BUILDER_LIST_ITEM_FACTORY, GtkBuilderListItemFactoryClass))
+
+typedef struct _GtkBuilderListItemFactory GtkBuilderListItemFactory;
+typedef struct _GtkBuilderListItemFactoryClass GtkBuilderListItemFactoryClass;
+
+GDK_AVAILABLE_IN_ALL
+GType                   gtk_builder_list_item_factory_get_type          (void) G_GNUC_CONST;
+
+GDK_AVAILABLE_IN_ALL
+GtkListItemFactory *    gtk_builder_list_item_factory_new_from_bytes    (GBytes         *bytes);
+GDK_AVAILABLE_IN_ALL
+GtkListItemFactory *    gtk_builder_list_item_factory_new_from_resource (const char     *resource_path);
+
+
+G_END_DECLS
+
+#endif /* __GTK_BUILDER_LIST_ITEM_FACTORY_H__ */

gtk/gtkdirectorylist.c

@@ -0,0 +1,681 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtkdirectorylist.h"
+
+#include "gtkintl.h"
+#include "gtkprivate.h"
+
+/**
+ * SECTION:gtkdirectorylist
+ * @title: GtkDirectoryList
+ * @short_description: A list model for directory listings
+ * @see_also: #GListModel, g_file_enumerate_children()
+ *
+ * #GtkDirectoryList is a list model that wraps g_file_enumerate_children_async().
+ * It presents a #GListModel and fills it asynchronously with the #GFileInfos
+ * returned from that function.
+ *
+ * Enumeration will start automatically when a the GtkDirectoryList:file property
+ * is set.
+ *
+ * While the #GtkDirectoryList is being filled, the GtkDirectoryList:loading
+ * property will be set to %TRUE. You can listen to that property if you want
+ * to show information like a #GtkSpinner or a "Loading..." text.
+ * If loading fails at any point, the GtkDirectoryList:error property will be set
+ * to give more indication about the failure.
+ *
+ * The #GFileInfos returned from a #GtkDirectoryList have the "standard::file"
+ * attribute set to the #GFile they refer to. This way you can get at the file
+ * that is referred to in the same way you would via g_file_enumerator_get_child().
+ * This means you do not need access to the #GtkDirectoryList but can access
+ * the #GFile directly from the #GFileInfo when operating with a #GtkListView or
+ * similar.
+ */
+
+/* random number that everyone else seems to use, too */
+#define FILES_PER_QUERY 100
+
+enum {
+  PROP_0,
+  PROP_ATTRIBUTES,
+  PROP_ERROR,
+  PROP_FILE,
+  PROP_IO_PRIORITY,
+  PROP_ITEM_TYPE,
+  PROP_LOADING,
+  NUM_PROPERTIES
+};
+
+struct _GtkDirectoryList
+{
+  GObject parent_instance;
+
+  char *attributes;
+  int io_priority;
+  GFile *file;
+
+  GCancellable *cancellable;
+  GError *error; /* Error while loading */
+  GSequence *items; /* Use GPtrArray or GListStore here? */
+};
+
+struct _GtkDirectoryListClass
+{
+  GObjectClass parent_class;
+};
+
+static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
+
+static GType
+gtk_directory_list_get_item_type (GListModel *list)
+{
+  return G_TYPE_FILE_INFO;
+}
+
+static guint
+gtk_directory_list_get_n_items (GListModel *list)
+{
+  GtkDirectoryList *self = GTK_DIRECTORY_LIST (list);
+
+  return g_sequence_get_length (self->items);
+}
+
+static gpointer
+gtk_directory_list_get_item (GListModel *list,
+                             guint       position)
+{
+  GtkDirectoryList *self = GTK_DIRECTORY_LIST (list);
+  GSequenceIter *iter;
+
+  iter = g_sequence_get_iter_at_pos (self->items, position);
+
+  if (g_sequence_iter_is_end (iter))
+    return NULL;
+  else
+    return g_object_ref (g_sequence_get (iter));
+}
+
+static void
+gtk_directory_list_model_init (GListModelInterface *iface)
+{
+  iface->get_item_type = gtk_directory_list_get_item_type;
+  iface->get_n_items = gtk_directory_list_get_n_items;
+  iface->get_item = gtk_directory_list_get_item;
+}
+
+G_DEFINE_TYPE_WITH_CODE (GtkDirectoryList, gtk_directory_list, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_directory_list_model_init))
+
+static void
+gtk_directory_list_set_property (GObject      *object,
+                                 guint         prop_id,
+                                 const GValue *value,
+                                 GParamSpec   *pspec)
+{
+  GtkDirectoryList *self = GTK_DIRECTORY_LIST (object);
+
+  switch (prop_id)
+    {
+    case PROP_ATTRIBUTES:
+      gtk_directory_list_set_attributes (self, g_value_get_string (value));
+      break;
+
+    case PROP_FILE:
+      gtk_directory_list_set_file (self, g_value_get_object (value));
+      break;
+
+    case PROP_IO_PRIORITY:
+      gtk_directory_list_set_io_priority (self, g_value_get_int (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void 
+gtk_directory_list_get_property (GObject     *object,
+                                 guint        prop_id,
+                                 GValue      *value,
+                                 GParamSpec  *pspec)
+{
+  GtkDirectoryList *self = GTK_DIRECTORY_LIST (object);
+
+  switch (prop_id)
+    {
+    case PROP_ATTRIBUTES:
+      g_value_set_string (value, self->attributes);
+      break;
+
+    case PROP_ERROR:
+      g_value_set_boxed (value, self->error);
+      break;
+
+    case PROP_FILE:
+      g_value_set_object (value, self->file);
+      break;
+
+    case PROP_IO_PRIORITY:
+      g_value_set_int (value, self->io_priority);
+      break;
+
+    case PROP_ITEM_TYPE:
+      g_value_set_gtype (value, G_TYPE_FILE_INFO);
+      break;
+
+    case PROP_LOADING:
+      g_value_set_boolean (value, gtk_directory_list_is_loading (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static gboolean
+gtk_directory_list_stop_loading (GtkDirectoryList *self)
+{
+  if (self->cancellable == NULL)
+    return FALSE;
+
+  g_cancellable_cancel (self->cancellable);
+  g_clear_object (&self->cancellable);
+  return TRUE;
+}
+
+static void
+gtk_directory_list_dispose (GObject *object)
+{
+  GtkDirectoryList *self = GTK_DIRECTORY_LIST (object);
+
+  gtk_directory_list_stop_loading (self);
+
+  g_clear_object (&self->file);
+  g_clear_pointer (&self->attributes, g_free);
+
+  g_clear_error (&self->error);
+  g_clear_pointer (&self->items, g_sequence_free);
+
+  G_OBJECT_CLASS (gtk_directory_list_parent_class)->dispose (object);
+}
+
+static void
+gtk_directory_list_class_init (GtkDirectoryListClass *class)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+
+  gobject_class->set_property = gtk_directory_list_set_property;
+  gobject_class->get_property = gtk_directory_list_get_property;
+  gobject_class->dispose = gtk_directory_list_dispose;
+
+  /**
+   * GtkDirectoryList:attributes:
+   *
+   * The attributes to query
+   */
+  properties[PROP_ATTRIBUTES] =
+      g_param_spec_string ("attributes",
+                           P_("attributes"),
+                           P_("Attributes to query"),
+                           NULL,
+                           GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
+
+  /**
+   * GtkDirectoryList:error:
+   *
+   * Error encountered while loading files
+   */
+  properties[PROP_ERROR] =
+      g_param_spec_boxed ("error",
+                          P_("error"),
+                          P_("Error encountered while loading files"),
+                          G_TYPE_ERROR,
+                          GTK_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
+
+  /**
+   * GtkDirectoryList:file:
+   *
+   * File to query
+   */
+  properties[PROP_FILE] =
+      g_param_spec_object ("file",
+                           P_("File"),
+                           P_("The file to query"),
+                           G_TYPE_FILE,
+                           GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
+
+  /**
+   * GtkDirectoryList:io-priority:
+   *
+   * Priority used when loading
+   */
+  properties[PROP_IO_PRIORITY] =
+      g_param_spec_int ("io-priority",
+                        P_("IO priority"),
+                        P_("Priority used when loading"),
+                        -G_MAXINT, G_MAXINT, G_PRIORITY_DEFAULT,
+                        GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
+
+  /**
+   * GtkDirectoryList:item-type:
+   *
+   * The #GType for elements of this object
+   */
+  properties[PROP_ITEM_TYPE] =
+      g_param_spec_gtype ("item-type",
+                          P_("Item type"),
+                          P_("The type of elements of this object"),
+                          G_TYPE_FILE_INFO,
+                          GTK_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
+
+  /**
+   * GtkDirectoryList:loading:
+   *
+   * %TRUE if files are being loaded
+   */
+  properties[PROP_LOADING] =
+      g_param_spec_boolean ("loading",
+                            P_("loading"),
+                            P_("TRUE if files are being loaded"),
+                            FALSE,
+                            GTK_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
+
+  g_object_class_install_properties (gobject_class, NUM_PROPERTIES, properties);
+}
+
+static void
+gtk_directory_list_init (GtkDirectoryList *self)
+{
+  self->items = g_sequence_new (g_object_unref);
+  self->io_priority = G_PRIORITY_DEFAULT;
+}
+
+/**
+ * gtk_directory_list_new:
+ * @file: (allow-none): The file to query
+ * @attributes: (allow-none): The attributes to query with
+ *
+ * Creates a new #GtkDirectoryList querying the given @file with the given
+ * @attributes.
+ *
+ * Returns: a new #GtkDirectoryList
+ **/
+GtkDirectoryList *
+gtk_directory_list_new (const char *attributes,
+                        GFile      *file)
+                        
+{
+  g_return_val_if_fail (file == NULL || G_IS_FILE (file), NULL);
+
+  return g_object_new (GTK_TYPE_DIRECTORY_LIST,
+                       "attributes", attributes,
+                       "file", file,
+                       NULL);
+}
+
+static void
+gtk_directory_list_clear_items (GtkDirectoryList *self)
+{
+  guint n_items;
+
+  n_items = g_sequence_get_length (self->items);
+  if (n_items > 0)
+    {
+      g_sequence_remove_range (g_sequence_get_begin_iter (self->items),
+                               g_sequence_get_end_iter (self->items));
+
+      g_list_model_items_changed (G_LIST_MODEL (self), 0, n_items, 0);
+    }
+
+  if (self->error)
+    {
+      g_clear_error (&self->error);
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ERROR]);
+    }
+}
+
+static void
+gtk_directory_list_enumerator_closed_cb (GObject      *source,
+                                         GAsyncResult *res,
+                                         gpointer      user_data)
+{
+  g_file_enumerator_close_finish (G_FILE_ENUMERATOR (source), res, NULL);
+}
+
+static void
+gtk_directory_list_got_files_cb (GObject      *source,
+                                 GAsyncResult *res,
+                                 gpointer      user_data)
+{
+  GtkDirectoryList *self = user_data; /* invalid if cancelled */
+  GFileEnumerator *enumerator = G_FILE_ENUMERATOR (source);
+  GError *error = NULL;
+  GList *l, *files;
+  guint n;
+
+  files = g_file_enumerator_next_files_finish (enumerator, res, &error);
+
+  if (files == NULL)
+    {
+      if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        {
+          g_clear_error (&error);
+          return;
+        }
+
+      g_file_enumerator_close_async (enumerator,
+                                     self->io_priority,
+                                     NULL,
+                                     gtk_directory_list_enumerator_closed_cb,
+                                     NULL);
+
+      g_object_freeze_notify (G_OBJECT (self));
+
+      g_clear_object (&self->cancellable);
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_LOADING]);
+
+      if (error)
+        {
+          self->error = error;
+          g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ERROR]);
+        }
+
+      g_object_thaw_notify (G_OBJECT (self));
+      return;
+    }
+
+  n = 0;
+  for (l = files; l; l = l->next)
+    {
+      GFileInfo *info;
+      GFile *file;
+      
+      info = l->data;
+      file = g_file_enumerator_get_child (enumerator, info);
+      g_file_info_set_attribute_object (info, "standard::file", G_OBJECT (file));
+      g_object_unref (file);
+      g_sequence_append (self->items, info);
+      n++;
+    }
+  g_list_free (files);
+
+  g_file_enumerator_next_files_async (enumerator,
+                                      g_file_is_native (self->file) ? 50 * FILES_PER_QUERY : FILES_PER_QUERY,
+                                      self->io_priority,
+                                      self->cancellable,
+                                      gtk_directory_list_got_files_cb,
+                                      self);
+
+  if (n > 0)
+    g_list_model_items_changed (G_LIST_MODEL (self), g_sequence_get_length (self->items) - n, 0, n);
+}
+
+static void
+gtk_directory_list_got_enumerator_cb (GObject      *source,
+                                      GAsyncResult *res,
+                                      gpointer      user_data)
+{
+  GtkDirectoryList *self = user_data; /* invalid if cancelled */
+  GFile *file = G_FILE (source);
+  GFileEnumerator *enumerator;
+  GError *error = NULL;
+
+  enumerator = g_file_enumerate_children_finish (file, res, &error);
+  if (enumerator == NULL)
+    {
+      if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        {
+          g_clear_error (&error);
+          return;
+        }
+
+      g_object_freeze_notify (G_OBJECT (self));
+      self->error = error;
+      g_clear_object (&self->cancellable);
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_LOADING]);
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ERROR]);
+      g_object_thaw_notify (G_OBJECT (self));
+      return;
+    }
+
+  g_file_enumerator_next_files_async (enumerator,
+                                      g_file_is_native (file) ? 50 * FILES_PER_QUERY : FILES_PER_QUERY,
+                                      self->io_priority,
+                                      self->cancellable,
+                                      gtk_directory_list_got_files_cb,
+                                      self);
+  g_object_unref (enumerator);
+}
+
+static void
+gtk_directory_list_start_loading (GtkDirectoryList *self)
+{
+  gboolean was_loading;
+
+  was_loading = gtk_directory_list_stop_loading (self);
+  gtk_directory_list_clear_items (self);
+
+  if (self->file == NULL)
+    {
+      if (was_loading)
+        g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_LOADING]);
+      return;
+    }
+
+  self->cancellable = g_cancellable_new ();
+  g_file_enumerate_children_async (self->file,
+                                   self->attributes,
+                                   G_FILE_QUERY_INFO_NONE,
+                                   self->io_priority,
+                                   self->cancellable,
+                                   gtk_directory_list_got_enumerator_cb,
+                                   self);
+
+  if (!was_loading)
+    g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_LOADING]);
+}
+
+/**
+ * gtk_directory_list_set_file:
+ * @self: a #GtkDirectoryList
+ * @file: (allow-none): the #GFile to be enumerated
+ *
+ * Sets the @file to be enumerated and starts the enumeration.
+ *
+ * If @file is %NULL, the result will be an empty list.
+ */
+void
+gtk_directory_list_set_file (GtkDirectoryList *self,
+                             GFile            *file)
+{
+  g_return_if_fail (GTK_IS_DIRECTORY_LIST (self));
+  g_return_if_fail (file == NULL || G_IS_FILE (file));
+
+  if (self->file == file ||
+      (self->file && file && g_file_equal (self->file, file)))
+    return;
+
+  g_object_freeze_notify (G_OBJECT (self));
+
+  g_set_object (&self->file, file);
+
+  gtk_directory_list_start_loading (self);
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_FILE]);
+
+  g_object_thaw_notify (G_OBJECT (self));
+}
+
+/**
+ * gtk_directory_list_get_file:
+ * @self: a #GtkDirectoryList
+ *
+ * Gets the file whose children are currently enumerated.
+ *
+ * Returns: (nullable) (transfer none): The file whose children are enumerated
+ **/
+GFile *
+gtk_directory_list_get_file (GtkDirectoryList *self)
+{
+  g_return_val_if_fail (GTK_IS_DIRECTORY_LIST (self), NULL);
+
+  return self->file;
+}
+
+/**
+ * gtk_directory_list_set_attributes:
+ * @self: a #GtkDirectoryList
+ * @attributes: (allow-none): the attributes to enumerate
+ *
+ * Sets the @attributes to be enumerated and starts the enumeration.
+ *
+ * If @attributes is %NULL, no attributes will be queried, but a list
+ * of #GFileInfos will still be created.
+ */
+void
+gtk_directory_list_set_attributes (GtkDirectoryList *self,
+                                   const char       *attributes)
+{
+  g_return_if_fail (GTK_IS_DIRECTORY_LIST (self));
+
+  if (self->attributes == attributes)
+    return;
+
+  g_object_freeze_notify (G_OBJECT (self));
+
+  g_free (self->attributes);
+  self->attributes = g_strdup (attributes);
+
+  gtk_directory_list_start_loading (self);
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ATTRIBUTES]);
+
+  g_object_thaw_notify (G_OBJECT (self));
+}
+
+/**
+ * gtk_directory_list_get_attributes:
+ * @self: a #GtkDirectoryList
+ *
+ * Gets the attributes queried on the children.
+ *
+ * Returns: (nullable) (transfer none): The queried attributes
+ */
+const char *
+gtk_directory_list_get_attributes (GtkDirectoryList *self)
+{
+  g_return_val_if_fail (GTK_IS_DIRECTORY_LIST (self), NULL);
+
+  return self->attributes;
+}
+
+/**
+ * gtk_directory_list_set_io_priority:
+ * @self: a #GtkDirectoryList
+ * @io_priority: IO priority to use
+ *
+ * Sets the IO priority to use while loading directories.
+ *
+ * Setting the priority while @self is loading will reprioritize the
+ * ongoing load as soon as possible.
+ *
+ * The default IO priority is %G_PRIORITY_DEFAULT, which is higher than
+ * the GTK redraw priority. If you are loading a lot of directories in
+ * parrallel, lowering it to something like %G_PRIORITY_DEFAULT_IDLE
+ * may increase responsiveness.
+ */
+void
+gtk_directory_list_set_io_priority (GtkDirectoryList *self,
+                                    int               io_priority)
+{
+  g_return_if_fail (GTK_IS_DIRECTORY_LIST (self));
+
+  if (self->io_priority == io_priority)
+    return;
+
+  self->io_priority = io_priority;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_IO_PRIORITY]);
+}
+
+/**
+ * gtk_directory_list_get_io_priority:
+ * @self: a #GtkDirectoryList
+ *
+ * Gets the IO priority set via gtk_directory_list_set_io_priority().
+ *
+ * Returns: The IO priority.
+ */
+int
+gtk_directory_list_get_io_priority (GtkDirectoryList *self)
+{
+  g_return_val_if_fail (GTK_IS_DIRECTORY_LIST (self), G_PRIORITY_DEFAULT);
+
+  return self->io_priority;
+}
+
+/**
+ * gtk_directory_list_is_loading:
+ * @self: a #GtkDirectoryList
+ *
+ * Returns %TRUE if the children enumeration is currently in
+ * progress.
+ * Files will be added to @self from time to time while loading is
+ * going on. The order in which are added is undefined and may change
+ * inbetween runs.
+ *
+ * Returns: %TRUE if @self is loading
+ */
+gboolean
+gtk_directory_list_is_loading (GtkDirectoryList *self)
+{
+  g_return_val_if_fail (GTK_IS_DIRECTORY_LIST (self), FALSE);
+
+  return self->cancellable != NULL;
+}
+
+/**
+ * gtk_directory_list_get_error:
+ * @self: a #GtkDirectoryList
+ *
+ * Gets the loading error, if any.
+ *
+ * If an error occurs during the loading process, the loading process
+ * will finish and this property allows querying the error that happened.
+ * This error will persist until a file is loaded again.
+ *
+ * An error being set does not mean that no files were loaded, and all
+ * successfully queried files will remain in the list.
+ *
+ * Returns: (nullable) (transfer none): The loading error or %NULL if
+ *     loading finished successfully.
+ */
+const GError *
+gtk_directory_list_get_error (GtkDirectoryList *self)
+{
+  g_return_val_if_fail (GTK_IS_DIRECTORY_LIST (self), FALSE);
+
+  return self->error;
+}
+

gtk/gtkdirectorylist.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_DIRECTORY_LIST_H__
+#define __GTK_DIRECTORY_LIST_H__
+
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gio/gio.h>
+/* for GDK_AVAILABLE_IN_ALL */
+#include <gdk/gdk.h>
+
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_DIRECTORY_LIST (gtk_directory_list_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkDirectoryList, gtk_directory_list, GTK, DIRECTORY_LIST, GObject)
+
+GDK_AVAILABLE_IN_ALL
+GtkDirectoryList *      gtk_directory_list_new                  (const char             *attributes,
+                                                                 GFile                  *file);
+
+GDK_AVAILABLE_IN_ALL
+void                    gtk_directory_list_set_file             (GtkDirectoryList       *self,
+                                                                 GFile                  *file);
+GDK_AVAILABLE_IN_ALL
+GFile *                 gtk_directory_list_get_file             (GtkDirectoryList       *self);
+GDK_AVAILABLE_IN_ALL
+void                    gtk_directory_list_set_attributes       (GtkDirectoryList       *self,
+                                                                 const char             *attributes);
+GDK_AVAILABLE_IN_ALL
+const char *            gtk_directory_list_get_attributes       (GtkDirectoryList       *self);
+GDK_AVAILABLE_IN_ALL
+void                    gtk_directory_list_set_io_priority      (GtkDirectoryList       *self,
+                                                                 int                     io_priority);
+GDK_AVAILABLE_IN_ALL
+int                     gtk_directory_list_get_io_priority      (GtkDirectoryList       *self);
+
+GDK_AVAILABLE_IN_ALL
+gboolean                gtk_directory_list_is_loading           (GtkDirectoryList       *self);
+GDK_AVAILABLE_IN_ALL
+const GError *          gtk_directory_list_get_error            (GtkDirectoryList       *self);
+
+G_END_DECLS
+
+#endif /* __GTK_DIRECTORY_LIST_H__ */

gtk/gtkfunctionslistitemfactory.c

@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtkfunctionslistitemfactory.h"
+
+#include "gtklistitemfactoryprivate.h"
+#include "gtklistitemprivate.h"
+
+struct _GtkFunctionsListItemFactory
+{
+  GtkListItemFactory parent_instance;
+
+  GtkListItemSetupFunc setup_func;
+  GtkListItemBindFunc bind_func;
+  gpointer user_data;
+  GDestroyNotify user_destroy;
+};
+
+struct _GtkFunctionsListItemFactoryClass
+{
+  GtkListItemFactoryClass parent_class;
+};
+
+G_DEFINE_TYPE (GtkFunctionsListItemFactory, gtk_functions_list_item_factory, GTK_TYPE_LIST_ITEM_FACTORY)
+
+static void
+gtk_functions_list_item_factory_setup (GtkListItemFactory *factory,
+                                       GtkListItem        *list_item)
+{
+  GtkFunctionsListItemFactory *self = GTK_FUNCTIONS_LIST_ITEM_FACTORY (factory);
+
+  GTK_LIST_ITEM_FACTORY_CLASS (gtk_functions_list_item_factory_parent_class)->setup (factory, list_item);
+
+  if (self->setup_func)
+    self->setup_func (list_item, self->user_data);
+}
+
+static void                  
+gtk_functions_list_item_factory_bind (GtkListItemFactory *factory,
+                                      GtkListItem        *list_item,
+                                      guint               position,
+                                      gpointer            item,
+                                      gboolean            selected)
+{
+  GtkFunctionsListItemFactory *self = GTK_FUNCTIONS_LIST_ITEM_FACTORY (factory);
+
+  GTK_LIST_ITEM_FACTORY_CLASS (gtk_functions_list_item_factory_parent_class)->bind (factory, list_item, position, item, selected);
+
+  if (self->bind_func)  
+    self->bind_func (list_item, self->user_data);
+}
+
+static void
+gtk_functions_list_item_factory_rebind (GtkListItemFactory *factory,
+                                        GtkListItem        *list_item,
+                                        guint               position,
+                                        gpointer            item,
+                                        gboolean            selected)
+{
+  GtkFunctionsListItemFactory *self = GTK_FUNCTIONS_LIST_ITEM_FACTORY (factory);
+
+  GTK_LIST_ITEM_FACTORY_CLASS (gtk_functions_list_item_factory_parent_class)->bind (factory, list_item, position, item, selected);
+
+  if (self->bind_func)  
+    self->bind_func (list_item, self->user_data);
+}
+
+static void
+gtk_functions_list_item_factory_finalize (GObject *object)
+{
+  GtkFunctionsListItemFactory *self = GTK_FUNCTIONS_LIST_ITEM_FACTORY (object);
+
+  if (self->user_destroy)
+    self->user_destroy (self->user_data);
+
+  G_OBJECT_CLASS (gtk_functions_list_item_factory_parent_class)->finalize (object);
+}
+
+static void
+gtk_functions_list_item_factory_class_init (GtkFunctionsListItemFactoryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkListItemFactoryClass *factory_class = GTK_LIST_ITEM_FACTORY_CLASS (klass);
+
+  object_class->finalize = gtk_functions_list_item_factory_finalize;
+
+  factory_class->setup = gtk_functions_list_item_factory_setup;
+  factory_class->bind = gtk_functions_list_item_factory_bind;
+  factory_class->rebind = gtk_functions_list_item_factory_rebind;
+}
+
+static void
+gtk_functions_list_item_factory_init (GtkFunctionsListItemFactory *self)
+{
+}
+
+GtkListItemFactory *
+gtk_functions_list_item_factory_new (GtkListItemSetupFunc setup_func,
+                                     GtkListItemBindFunc  bind_func,
+                                     gpointer             user_data,
+                                     GDestroyNotify       user_destroy)
+{
+  GtkFunctionsListItemFactory *self;
+
+  g_return_val_if_fail (setup_func || bind_func, NULL);
+  g_return_val_if_fail (user_data != NULL || user_destroy == NULL, NULL);
+
+  self = g_object_new (GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY, NULL);
+
+  self->setup_func = setup_func;
+  self->bind_func = bind_func;
+  self->user_data = user_data;
+  self->user_destroy = user_destroy;
+
+  return GTK_LIST_ITEM_FACTORY (self);
+}
+

gtk/gtkfunctionslistitemfactory.h

@@ -0,0 +1,82 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_FUNCTIONS_LIST_ITEM_FACTORY_H__
+#define __GTK_FUNCTIONS_LIST_ITEM_FACTORY_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtklistitemfactory.h>
+#include <gtk/gtklistitem.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY         (gtk_functions_list_item_factory_get_type ())
+#define GTK_FUNCTIONS_LIST_ITEM_FACTORY(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY, GtkFunctionsListItemFactory))
+#define GTK_FUNCTIONS_LIST_ITEM_FACTORY_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY, GtkFunctionsListItemFactoryClass))
+#define GTK_IS_FUNCTIONS_LIST_ITEM_FACTORY(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY))
+#define GTK_IS_FUNCTIONS_LIST_ITEM_FACTORY_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY))
+#define GTK_FUNCTIONS_LIST_ITEM_FACTORY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_FUNCTIONS_LIST_ITEM_FACTORY, GtkFunctionsListItemFactoryClass))
+
+typedef struct _GtkFunctionsListItemFactory GtkFunctionsListItemFactory;
+typedef struct _GtkFunctionsListItemFactoryClass GtkFunctionsListItemFactoryClass;
+
+/**
+ * GtkListItemSetupFunc:
+ * @item: the #GtkListItem to set up
+ * @user_data: (closure): user data
+ *
+ * Called whenever a new list item needs to be setup for managing a row in
+ * the list.
+ *
+ * At this point, the list item is not bound yet, so gtk_list_item_get_item()
+ * will return %NULL.
+ * The list item will later be bound to an item via the #GtkListItemBindFunc.
+ */
+typedef void (* GtkListItemSetupFunc) (GtkListItem *item, gpointer user_data);
+
+/**
+ * GtkListItemBindFunc:
+ * @item: the #GtkListItem to bind
+ * @user_data: (closure): user data
+ *
+ * Binds a#GtkListItem previously set up via a #GtkListItemSetupFunc to
+ * an @item.
+ *
+ * Rebinding a @item to different @items is supported as well as
+ * unbinding it by setting @item to %NULL.
+ */
+typedef void (* GtkListItemBindFunc) (GtkListItem *item,
+                                      gpointer   user_data);
+
+GDK_AVAILABLE_IN_ALL
+GType                   gtk_functions_list_item_factory_get_type (void) G_GNUC_CONST;
+
+GDK_AVAILABLE_IN_ALL
+GtkListItemFactory *    gtk_functions_list_item_factory_new     (GtkListItemSetupFunc    setup_func,
+                                                                 GtkListItemBindFunc     bind_func,
+                                                                 gpointer                user_data,
+                                                                 GDestroyNotify          user_destroy);
+
+
+G_END_DECLS
+
+#endif /* __GTK_FUNCTIONS_LIST_ITEM_FACTORY_H__ */

gtk/gtkgridview.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_GRID_VIEW_H__
+#define __GTK_GRID_VIEW_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtkwidget.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_GRID_VIEW         (gtk_grid_view_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkGridView, gtk_grid_view, GTK, GRID_VIEW, GtkWidget)
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget *     gtk_grid_view_new                               (void);
+GDK_AVAILABLE_IN_ALL
+GtkWidget *     gtk_grid_view_new_with_factory                  (GtkListItemFactory     *factory);
+
+GDK_AVAILABLE_IN_ALL
+GListModel *    gtk_grid_view_get_model                         (GtkGridView            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_grid_view_set_model                         (GtkGridView            *self,
+                                                                 GListModel             *model);
+GDK_AVAILABLE_IN_ALL
+void            gtk_grid_view_set_factory                       (GtkGridView            *self,
+                                                                 GtkListItemFactory     *factory);
+GDK_AVAILABLE_IN_ALL
+GtkListItemFactory *
+                gtk_grid_view_get_factory                       (GtkGridView            *self);
+GDK_AVAILABLE_IN_ALL
+guint           gtk_grid_view_get_min_columns                   (GtkGridView            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_grid_view_set_min_columns                   (GtkGridView            *self,
+                                                                 guint                   min_columns);
+GDK_AVAILABLE_IN_ALL
+guint           gtk_grid_view_get_max_columns                   (GtkGridView            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_grid_view_set_max_columns                   (GtkGridView            *self,
+                                                                 guint                   max_columns);
+
+
+G_END_DECLS
+
+#endif  /* __GTK_GRID_VIEW_H__ */

gtk/gtklistitem.c

@@ -0,0 +1,512 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtklistitemprivate.h"
+
+#include "gtkcssnodeprivate.h"
+#include "gtkeventcontrollerkey.h"
+#include "gtkgestureclick.h"
+#include "gtkintl.h"
+#include "gtkmain.h"
+#include "gtkwidgetprivate.h"
+
+/**
+ * SECTION:gtklistitem
+ * @title: GtkListItem
+ * @short_description: Widget used to represent items of a ListModel
+ * @see_also: #GtkListView, #GListModel
+ *
+ * #GtkListItem is the widget that GTK list-handling containers such
+ * as #GtkListView create to represent items in a #GListModel.  
+ * They are managed by the container and cannot be created by application
+ * code.
+ *
+ * #GtkListIems are container widgets that need to be populated by
+ * application code. The container provides functions to do that.
+ *
+ * #GtkListItems exist in 2 stages:
+ *
+ * 1. The unbound stage where the listitem is not currently connected to
+ *    an item in the list. In that case, the GtkListItem:item property is
+ *    set to %NULL.
+ *
+ * 2. The bound stage where the listitem references an item from the list.
+ *    The GtkListItem:item property is not %NULL.
+ */
+
+struct _GtkListItem
+{
+  GtkBin parent_instance;
+
+  GObject *item;
+  guint position;
+
+  guint selectable : 1;
+  guint selected : 1;
+};
+
+enum
+{
+  PROP_0,
+  PROP_ITEM,
+  PROP_POSITION,
+  PROP_SELECTABLE,
+  PROP_SELECTED,
+
+  N_PROPS
+};
+
+G_DEFINE_TYPE (GtkListItem, gtk_list_item, GTK_TYPE_BIN)
+
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+static gboolean
+gtk_list_item_focus (GtkWidget        *widget,
+                     GtkDirectionType  direction)
+{
+  GtkListItem *self = GTK_LIST_ITEM (widget);
+  GtkWidget *child;
+
+  /* The idea of this function is the following:
+   * 1. If any child can take focus, do not ever attempt
+   *    to take focus.
+   * 2. Otherwise, if this item is selectable or activatable,
+   *    allow focusing this widget.
+   *
+   * This makes sure every item in a list is focusable for
+   * activation and selection handling, but no useless widgets
+   * get focused and moving focus is as fast as possible.
+   */
+  child = gtk_bin_get_child (GTK_BIN (self));
+
+  if (child)
+    {
+      if (gtk_widget_get_focus_child (widget))
+        return FALSE;
+      if (gtk_widget_child_focus (child, direction))
+        return TRUE;
+    }
+
+  if (!gtk_widget_get_can_focus (widget) ||
+      !self->selectable)
+    return FALSE;
+
+  gtk_widget_grab_focus (widget);
+  return TRUE;
+}
+
+static void
+gtk_list_item_dispose (GObject *object)
+{
+  GtkListItem *self = GTK_LIST_ITEM (object);
+
+  g_assert (self->item == NULL);
+
+  G_OBJECT_CLASS (gtk_list_item_parent_class)->dispose (object);
+}
+
+static void
+gtk_list_item_get_property (GObject    *object,
+                            guint       property_id,
+                            GValue     *value,
+                            GParamSpec *pspec)
+{
+  GtkListItem *self = GTK_LIST_ITEM (object);
+
+  switch (property_id)
+    {
+    case PROP_ITEM:
+      g_value_set_object (value, self->item);
+      break;
+
+    case PROP_POSITION:
+      g_value_set_uint (value, self->position);
+      break;
+
+    case PROP_SELECTABLE:
+      g_value_set_boolean (value, self->selectable);
+      break;
+
+    case PROP_SELECTED:
+      g_value_set_boolean (value, self->selected);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_list_item_set_property (GObject      *object,
+                            guint         property_id,
+                            const GValue *value,
+                            GParamSpec   *pspec)
+{
+  GtkListItem *self = GTK_LIST_ITEM (object);
+
+  switch (property_id)
+    {
+    case PROP_SELECTABLE:
+      gtk_list_item_set_selectable (self, g_value_get_boolean (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_list_item_class_init (GtkListItemClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  widget_class->focus = gtk_list_item_focus;
+
+  gobject_class->dispose = gtk_list_item_dispose;
+  gobject_class->get_property = gtk_list_item_get_property;
+  gobject_class->set_property = gtk_list_item_set_property;
+
+  /**
+   * GtkListItem:item:
+   *
+   * Displayed item
+   */
+  properties[PROP_ITEM] =
+    g_param_spec_object ("item",
+                         P_("Item"),
+                         P_("Displayed item"),
+                         G_TYPE_OBJECT,
+                         G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GtkListItem:position:
+   *
+   * Position in the item
+   */
+  properties[PROP_POSITION] =
+    g_param_spec_uint ("position",
+                       P_("Position"),
+                       P_("Position of the item"),
+                       0, G_MAXUINT, 0,
+                       G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GtkListItem:selectable:
+   *
+   * If the item can be selected by the user
+   */
+  properties[PROP_SELECTABLE] =
+    g_param_spec_boolean ("selectable",
+                          P_("Selectable"),
+                          P_("If the item can be selected by the user"),
+                          TRUE,
+                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GtkListItem:selected:
+   *
+   * If the item is currently selected
+   */
+  properties[PROP_SELECTED] =
+    g_param_spec_boolean ("selected",
+                          P_("Selected"),
+                          P_("If the item is currently selected"),
+                          FALSE,
+                          G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+
+  /* This gets overwritten by gtk_list_item_new() but better safe than sorry */
+  gtk_widget_class_set_css_name (widget_class, I_("row"));
+}
+
+static void
+gtk_list_item_click_gesture_pressed (GtkGestureClick *gesture,
+                                     int              n_press,
+                                     double           x,
+                                     double           y,
+                                     GtkListItem     *self)
+{
+  GtkWidget *widget = GTK_WIDGET (self);
+  GdkModifierType state;
+  GdkModifierType mask;
+  gboolean extend = FALSE, modify = FALSE;
+
+  if (!self->selectable)
+    {
+      gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
+      return;
+    }
+
+  if (gtk_get_current_event_state (&state))
+    {
+      mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_MODIFY_SELECTION);
+      if ((state & mask) == mask)
+        modify = TRUE;
+      mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_EXTEND_SELECTION);
+      if ((state & mask) == mask)
+        extend = TRUE;
+    }
+
+  gtk_widget_activate_action (GTK_WIDGET (self),
+                              "list.select-item",
+                              "(ubb)",
+                              self->position, modify, extend);
+
+  gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_ACTIVE, FALSE);
+
+  if (gtk_widget_get_focus_on_click (widget))
+    gtk_widget_grab_focus (widget);
+}
+
+static void
+gtk_list_item_focus_changed_cb (GtkEventControllerKey *controller,
+                                GParamSpec            *psepc,
+                                GtkListItem           *self)
+{
+  GtkWidget *widget = GTK_WIDGET (self);
+
+  if (gtk_event_controller_key_contains_focus (controller))
+    {
+      gtk_widget_activate_action (widget,
+                                  "list.scroll-to-item",
+                                  "u",
+                                  self->position);
+    }
+}
+
+static void
+gtk_list_item_click_gesture_released (GtkGestureClick *gesture,
+                                      int              n_press,
+                                      double           x,
+                                      double           y,
+                                      GtkListItem     *self)
+{
+  gtk_widget_unset_state_flags (GTK_WIDGET (self), GTK_STATE_FLAG_ACTIVE);
+}
+
+static void
+gtk_list_item_click_gesture_canceled (GtkGestureClick  *gesture,
+                                      GdkEventSequence *sequence,
+                                      GtkListItem      *self)
+{
+  gtk_widget_unset_state_flags (GTK_WIDGET (self), GTK_STATE_FLAG_ACTIVE);
+}
+
+static void
+gtk_list_item_init (GtkListItem *self)
+{
+  GtkEventController *controller;
+  GtkGesture *gesture;
+
+  self->selectable = TRUE;
+  gtk_widget_set_can_focus (GTK_WIDGET (self), TRUE);
+
+  gesture = gtk_gesture_click_new ();
+  gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
+                                              GTK_PHASE_BUBBLE);
+  gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture),
+                                     FALSE);
+  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture),
+                                 GDK_BUTTON_PRIMARY);
+  g_signal_connect (gesture, "pressed",
+                    G_CALLBACK (gtk_list_item_click_gesture_pressed), self);
+  g_signal_connect (gesture, "released",
+                    G_CALLBACK (gtk_list_item_click_gesture_released), self);
+  g_signal_connect (gesture, "cancel",
+                    G_CALLBACK (gtk_list_item_click_gesture_canceled), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
+
+  controller = gtk_event_controller_key_new ();
+  g_signal_connect (controller, "notify::contains-focus", G_CALLBACK (gtk_list_item_focus_changed_cb), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), controller);
+}
+
+GtkListItem *
+gtk_list_item_new (const char *css_name)
+{
+  GtkListItem *result;
+
+  g_return_val_if_fail (css_name != NULL, NULL);
+
+  result = g_object_new (GTK_TYPE_LIST_ITEM,
+                         "css-name", css_name,
+                         NULL);
+
+  return result;
+}
+
+/**
+ * gtk_list_item_get_item:
+ * @self: a #GtkListItem
+ *
+ * Gets the item that is currently displayed in model that @self is
+ * currently bound to or %NULL if @self is unbound.
+ *
+ * Returns: (nullable) (transfer none) (type GObject): The item displayed
+ **/
+gpointer
+gtk_list_item_get_item (GtkListItem *self)
+{
+  g_return_val_if_fail (GTK_IS_LIST_ITEM (self), NULL);
+
+  return self->item;
+}
+
+/**
+ * gtk_list_item_get_position:
+ * @self: a #GtkListItem
+ *
+ * Gets the position in the model that @self currently displays.
+ * If @self is unbound, 0 is returned.
+ *
+ * Returns: The position of this item
+ **/
+guint
+gtk_list_item_get_position (GtkListItem *self)
+{
+  g_return_val_if_fail (GTK_IS_LIST_ITEM (self), 0);
+
+  return self->position;
+}
+
+void
+gtk_list_item_set_item (GtkListItem *self,
+                        gpointer     item)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM (self));
+  g_return_if_fail (item == NULL || G_IS_OBJECT (item));
+
+  if (self->item == item)
+    return;
+
+  g_clear_object (&self->item);
+  if (item)
+    self->item = g_object_ref (item);
+
+  gtk_css_node_invalidate (gtk_widget_get_css_node (GTK_WIDGET (self)), GTK_CSS_CHANGE_ANIMATIONS);
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ITEM]);
+}
+
+void
+gtk_list_item_set_position (GtkListItem *self,
+                            guint        position)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM (self));
+
+  if (self->position == position)
+    return;
+
+  self->position = position;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_POSITION]);
+}
+
+/**
+ * gtk_list_item_get_selected:
+ * @self: a #GtkListItem
+ *
+ * Checks if the item is displayed as selected. The selected state is
+ * maintained by the container and its list model and cannot be set
+ * otherwise.
+ *
+ * Returns: %TRUE if the item is selected.
+ **/
+gboolean
+gtk_list_item_get_selected (GtkListItem *self)
+{
+  g_return_val_if_fail (GTK_IS_LIST_ITEM (self), FALSE);
+
+  return self->selected;
+}
+
+void
+gtk_list_item_set_selected (GtkListItem *self,
+                            gboolean     selected)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM (self));
+
+  if (self->selected == selected)
+    return;
+
+  self->selected = selected;
+
+  if (selected)
+    gtk_widget_set_state_flags (GTK_WIDGET (self), GTK_STATE_FLAG_SELECTED, FALSE);
+  else
+    gtk_widget_unset_state_flags (GTK_WIDGET (self), GTK_STATE_FLAG_SELECTED);
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SELECTED]);
+}
+
+/**
+ * gtk_list_item_get_selectable:
+ * @self: a #GtkListItem
+ *
+ * Checks if a list item has been set to be selectable via
+ * gtk_list_item_set_selectable().
+ *
+ * Do not confuse this function with gtk_list_item_get_selected().
+ *
+ * Returns: %TRUE if the item is selectable
+ **/
+gboolean
+gtk_list_item_get_selectable (GtkListItem *self)
+{
+  g_return_val_if_fail (GTK_IS_LIST_ITEM (self), FALSE);
+
+  return self->selectable;
+}
+
+/**
+ * gtk_list_item_set_selectable:
+ * @self: a #GtkListItem
+ * @selectable: if the item should be selectable
+ *
+ * Sets @self to be selectable. If an item is selectable, clicking
+ * on the item or using the keyboard will try to select or unselect
+ * the item. If this succeeds is up to the model to determine, as
+ * it is managing the selected state.
+ *
+ * Note that this means that making an item non-selectable has no
+ * influence on the selected state at all. A non-selectable item 
+ * may still be selected.
+ *
+ * By default, list items are selectable. When rebinding them to
+ * a new item, they will also be reset to be selectable by GTK.
+ **/
+void
+gtk_list_item_set_selectable (GtkListItem *self,
+                              gboolean     selectable)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM (self));
+
+  if (self->selectable == selectable)
+    return;
+
+  self->selectable = selectable;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SELECTABLE]);
+}

gtk/gtklistitem.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_LIST_ITEM_H__
+#define __GTK_LIST_ITEM_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtkbin.h>
+
+G_BEGIN_DECLS
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkListItem, gtk_list_item, GTK, LIST_ITEM, GtkBin)
+
+#define GTK_TYPE_LIST_ITEM         (gtk_list_item_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+gpointer        gtk_list_item_get_item                          (GtkListItem            *self);
+GDK_AVAILABLE_IN_ALL
+guint           gtk_list_item_get_position                      (GtkListItem            *self);
+GDK_AVAILABLE_IN_ALL
+gboolean        gtk_list_item_get_selected                      (GtkListItem            *self);
+GDK_AVAILABLE_IN_ALL
+gboolean        gtk_list_item_get_selectable                    (GtkListItem            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_list_item_set_selectable                    (GtkListItem            *self,
+                                                                 gboolean                selectable);
+
+
+G_END_DECLS
+
+#endif  /* __GTK_LIST_ITEM_H__ */

gtk/gtklistitemfactory.c

@@ -0,0 +1,187 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtklistitemfactoryprivate.h"
+
+#include "gtklistitemprivate.h"
+
+G_DEFINE_TYPE (GtkListItemFactory, gtk_list_item_factory, G_TYPE_OBJECT)
+
+static void
+gtk_list_item_factory_default_setup (GtkListItemFactory *self,
+                                     GtkListItem        *list_item)
+{
+}
+
+static void
+gtk_list_item_factory_default_teardown (GtkListItemFactory *self,
+                                        GtkListItem        *list_item)
+{
+  GtkWidget *child;
+
+  child = gtk_bin_get_child (GTK_BIN (list_item));
+  if (child)
+    gtk_container_remove (GTK_CONTAINER (list_item), child);
+
+  gtk_list_item_set_selectable (list_item, TRUE);
+
+}
+
+static void                  
+gtk_list_item_factory_default_bind (GtkListItemFactory *self,
+                                    GtkListItem        *list_item,
+                                    guint               position,
+                                    gpointer            item,
+                                    gboolean            selected)
+{
+  gtk_list_item_set_item (list_item, item);
+  gtk_list_item_set_position (list_item, position);
+  gtk_list_item_set_selected (list_item, selected);
+}
+
+static void
+gtk_list_item_factory_default_rebind (GtkListItemFactory *self,
+                                      GtkListItem        *list_item,
+                                      guint               position,
+                                      gpointer            item,
+                                      gboolean            selected)
+{
+  gtk_list_item_set_item (list_item, item);
+  gtk_list_item_set_position (list_item, position);
+  gtk_list_item_set_selected (list_item, selected);
+}
+
+static void
+gtk_list_item_factory_default_update (GtkListItemFactory *self,
+                                      GtkListItem        *list_item,
+                                      guint               position,
+                                      gboolean            selected)
+{
+  gtk_list_item_set_position (list_item, position);
+  gtk_list_item_set_selected (list_item, selected);
+}
+
+static void
+gtk_list_item_factory_default_unbind (GtkListItemFactory *self,
+                                      GtkListItem        *list_item)
+{
+  gtk_list_item_set_item (list_item, NULL);
+  gtk_list_item_set_position (list_item, 0);
+  gtk_list_item_set_selected (list_item, FALSE);
+}
+
+static void
+gtk_list_item_factory_class_init (GtkListItemFactoryClass *klass)
+{
+  klass->setup = gtk_list_item_factory_default_setup;
+  klass->teardown = gtk_list_item_factory_default_teardown;
+  klass->bind = gtk_list_item_factory_default_bind;
+  klass->rebind = gtk_list_item_factory_default_rebind;
+  klass->update = gtk_list_item_factory_default_update;
+  klass->unbind = gtk_list_item_factory_default_unbind;
+}
+
+static void
+gtk_list_item_factory_init (GtkListItemFactory *self)
+{
+}
+
+void
+gtk_list_item_factory_setup (GtkListItemFactory *self,
+                             GtkListItem        *list_item)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->setup (self, list_item);
+}
+
+void
+gtk_list_item_factory_teardown (GtkListItemFactory *self,
+                                GtkListItem        *list_item)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->teardown (self, list_item);
+}
+
+void
+gtk_list_item_factory_bind (GtkListItemFactory *self,
+                            GtkListItem        *list_item,
+                            guint               position,
+                            gpointer            item,
+                            gboolean            selected)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+  g_return_if_fail (GTK_IS_LIST_ITEM (list_item));
+
+  g_object_freeze_notify (G_OBJECT (list_item));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->bind (self, list_item, position, item, selected);
+
+  g_object_thaw_notify (G_OBJECT (list_item));
+}
+
+void
+gtk_list_item_factory_rebind (GtkListItemFactory *self,
+                              GtkListItem        *list_item,
+                              guint               position,
+                              gpointer            item,
+                              gboolean            selected)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+  g_return_if_fail (GTK_IS_LIST_ITEM (list_item));
+
+  g_object_freeze_notify (G_OBJECT (list_item));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->rebind (self, list_item, position, item, selected);
+
+  g_object_thaw_notify (G_OBJECT (list_item));
+}
+
+void
+gtk_list_item_factory_update (GtkListItemFactory *self,
+                              GtkListItem        *list_item,
+                              guint               position,
+                              gboolean            selected)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+  g_return_if_fail (GTK_IS_LIST_ITEM (list_item));
+
+  g_object_freeze_notify (G_OBJECT (list_item));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->update (self, list_item, position, selected);
+
+  g_object_thaw_notify (G_OBJECT (list_item));
+}
+
+void
+gtk_list_item_factory_unbind (GtkListItemFactory *self,
+                              GtkListItem        *list_item)
+{
+  g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (self));
+  g_return_if_fail (GTK_IS_LIST_ITEM (list_item));
+
+  g_object_freeze_notify (G_OBJECT (list_item));
+
+  GTK_LIST_ITEM_FACTORY_GET_CLASS (self)->unbind (self, list_item);
+
+  g_object_thaw_notify (G_OBJECT (list_item));
+}

gtk/gtklistitemfactory.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_LIST_ITEM_FACTORY_H__
+#define __GTK_LIST_ITEM_FACTORY_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+typedef struct _GtkListItemFactoryClass GtkListItemFactoryClass;
+
+#include <gdk/gdk.h>
+#include <gtk/gtktypes.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_LIST_ITEM_FACTORY         (gtk_list_item_factory_get_type ())
+#define GTK_LIST_ITEM_FACTORY(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_LIST_ITEM_FACTORY, GtkListItemFactory))
+#define GTK_LIST_ITEM_FACTORY_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_LIST_ITEM_FACTORY, GtkListItemFactoryClass))
+#define GTK_IS_LIST_ITEM_FACTORY(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_LIST_ITEM_FACTORY))
+#define GTK_IS_LIST_ITEM_FACTORY_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_LIST_ITEM_FACTORY))
+#define GTK_LIST_ITEM_FACTORY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_LIST_ITEM_FACTORY, GtkListItemFactoryClass))
+
+
+GDK_AVAILABLE_IN_ALL
+GType        gtk_list_item_factory_get_type       (void) G_GNUC_CONST;
+
+
+G_END_DECLS
+
+#endif /* __GTK_LIST_ITEM_FACTORY_H__ */

gtk/gtklistitemfactoryprivate.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+
+#ifndef __GTK_LIST_ITEM_FACTORY_PRIVATE_H__
+#define __GTK_LIST_ITEM_FACTORY_PRIVATE_H__
+
+#include <gtk/gtklistitem.h>
+#include <gtk/gtklistitemfactory.h>
+#include <gtk/gtklistview.h>
+
+G_BEGIN_DECLS
+
+struct _GtkListItemFactory
+{
+  GObject parent_instance;
+};
+
+struct _GtkListItemFactoryClass
+{
+  GObjectClass parent_class;
+
+  /* setup @list_item so it can be bound */
+  void                  (* setup)                               (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+  /* undo the effects of GtkListItemFactoryClass::setup() */
+  void                  (* teardown)                            (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+
+  /* bind @list_item to the given @item, which is in @position and @selected state */
+  void                  (* bind)                                (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gpointer                item,
+                                                                 gboolean                selected);
+  /* unbind the current item and bind a new one */
+  void                  (* rebind)                              (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gpointer                item,
+                                                                 gboolean                selected);
+  /* like GtkListItemFactoryClass::rebind(), but the item didn't change */
+  void                  (* update)                              (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gboolean                selected);
+  /* undo the effects of GtkListItemFactoryClass::bind() */
+  void                  (* unbind)                              (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+};
+
+void                    gtk_list_item_factory_setup             (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+void                    gtk_list_item_factory_teardown          (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+
+void                    gtk_list_item_factory_bind              (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gpointer                item,
+                                                                 gboolean                selected);
+void                    gtk_list_item_factory_rebind            (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gpointer                item,
+                                                                 gboolean                selected);
+void                    gtk_list_item_factory_update            (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item,
+                                                                 guint                   position,
+                                                                 gboolean                selected);
+void                    gtk_list_item_factory_unbind            (GtkListItemFactory     *self,
+                                                                 GtkListItem            *list_item);
+
+
+G_END_DECLS
+
+#endif /* __GTK_LIST_ITEM_FACTORY_PRIVATE_H__ */

gtk/gtklistitemmanagerprivate.h

@@ -0,0 +1,105 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+
+#ifndef __GTK_LIST_ITEM_MANAGER_H__
+#define __GTK_LIST_ITEM_MANAGER_H__
+
+#include "gtk/gtktypes.h"
+
+#include "gtk/gtklistitemfactoryprivate.h"
+#include "gtk/gtkrbtreeprivate.h"
+#include "gtk/gtkselectionmodel.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_LIST_ITEM_MANAGER         (gtk_list_item_manager_get_type ())
+#define GTK_LIST_ITEM_MANAGER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManager))
+#define GTK_LIST_ITEM_MANAGER_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManagerClass))
+#define GTK_IS_LIST_ITEM_MANAGER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_LIST_ITEM_MANAGER))
+#define GTK_IS_LIST_ITEM_MANAGER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_LIST_ITEM_MANAGER))
+#define GTK_LIST_ITEM_MANAGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManagerClass))
+
+typedef struct _GtkListItemManager GtkListItemManager;
+typedef struct _GtkListItemManagerClass GtkListItemManagerClass;
+typedef struct _GtkListItemManagerItem GtkListItemManagerItem; /* sorry */
+typedef struct _GtkListItemManagerItemAugment GtkListItemManagerItemAugment;
+typedef struct _GtkListItemTracker GtkListItemTracker;
+
+struct _GtkListItemManagerItem
+{
+  GtkWidget *widget;
+  guint n_items;
+};
+
+struct _GtkListItemManagerItemAugment
+{
+  guint n_items;
+};
+
+
+GType                   gtk_list_item_manager_get_type          (void) G_GNUC_CONST;
+
+GtkListItemManager *    gtk_list_item_manager_new_for_size      (GtkWidget              *widget,
+                                                                 const char             *item_css_name,
+                                                                 gsize                   element_size,
+                                                                 gsize                   augment_size,
+                                                                 GtkRbTreeAugmentFunc    augment_func);
+#define gtk_list_item_manager_new(widget, item_css_name, type, augment_type, augment_func) \
+  gtk_list_item_manager_new_for_size (widget, item_css_name, sizeof (type), sizeof (augment_type), (augment_func))
+
+void                    gtk_list_item_manager_augment_node      (GtkRbTree              *tree,
+                                                                 gpointer                node_augment,
+                                                                 gpointer                node,
+                                                                 gpointer                left,
+                                                                 gpointer                right);
+gpointer                gtk_list_item_manager_get_root          (GtkListItemManager     *self);
+gpointer                gtk_list_item_manager_get_first         (GtkListItemManager     *self);
+gpointer                gtk_list_item_manager_get_nth           (GtkListItemManager     *self,
+                                                                 guint                   position,
+                                                                 guint                  *offset);
+guint                   gtk_list_item_manager_get_item_position (GtkListItemManager     *self,
+                                                                 gpointer                item);
+gpointer                gtk_list_item_manager_get_item_augment  (GtkListItemManager     *self,
+                                                                 gpointer                item);
+
+void                    gtk_list_item_manager_set_factory       (GtkListItemManager     *self,
+                                                                 GtkListItemFactory     *factory);
+GtkListItemFactory *    gtk_list_item_manager_get_factory       (GtkListItemManager     *self);
+void                    gtk_list_item_manager_set_model         (GtkListItemManager     *self,
+                                                                 GtkSelectionModel      *model);
+GtkSelectionModel *     gtk_list_item_manager_get_model         (GtkListItemManager     *self);
+
+guint                   gtk_list_item_manager_get_size          (GtkListItemManager     *self);
+
+GtkListItemTracker *    gtk_list_item_tracker_new               (GtkListItemManager     *self);
+void                    gtk_list_item_tracker_free              (GtkListItemManager     *self,
+                                                                 GtkListItemTracker     *tracker);
+void                    gtk_list_item_tracker_set_position      (GtkListItemManager     *self,
+                                                                 GtkListItemTracker     *tracker,
+                                                                 guint                   position,
+                                                                 guint                   n_before,
+                                                                 guint                   n_after);
+guint                   gtk_list_item_tracker_get_position      (GtkListItemManager     *self,
+                                                                 GtkListItemTracker     *tracker);
+
+
+G_END_DECLS
+
+#endif /* __GTK_LIST_ITEM_MANAGER_H__ */

gtk/gtklistitemprivate.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_LIST_ITEM_PRIVATE_H__
+#define __GTK_LIST_ITEM_PRIVATE_H__
+
+#include "gtklistitem.h"
+
+#include "gtklistitemmanagerprivate.h"
+
+G_BEGIN_DECLS
+
+GtkListItem *   gtk_list_item_new                               (const char             *css_name);
+
+void            gtk_list_item_set_item                          (GtkListItem            *self,
+                                                                 gpointer                item);
+void            gtk_list_item_set_position                      (GtkListItem            *self,
+                                                                 guint                   position);
+void            gtk_list_item_set_selected                      (GtkListItem            *self,
+                                                                 gboolean                selected);
+
+G_END_DECLS
+
+#endif  /* __GTK_LIST_ITEM_PRIVATE_H__ */

gtk/gtklistlistmodel.c

@@ -206,15 +206,12 @@ gtk_list_list_model_new_with_size (GType          item_type,
   return result;
 }
 
-void
-gtk_list_list_model_item_added (GtkListListModel *self,
-                                gpointer          item)
+static guint
+gtk_list_list_model_find (GtkListListModel *self,
+                          gpointer          item)
 {
-  gpointer x;
   guint position;
-
-  g_return_if_fail (GTK_IS_LIST_LIST_MODEL (self));
-  g_return_if_fail (item != NULL);
+  gpointer x;
 
   position = 0;
   for (x = self->get_first (self->data);
@@ -222,7 +219,17 @@ gtk_list_list_model_item_added (GtkListListModel *self,
        x = self->get_next (x, self->data))
     position++;
 
-  gtk_list_list_model_item_added_at (self, position);
+  return position;
+}
+
+void
+gtk_list_list_model_item_added (GtkListListModel *self,
+                                gpointer          item)
+{
+  g_return_if_fail (GTK_IS_LIST_LIST_MODEL (self));
+  g_return_if_fail (item != NULL);
+
+  gtk_list_list_model_item_added_at (self, gtk_list_list_model_find (self, item));
 }
 
 void
@@ -241,26 +248,49 @@ void
 gtk_list_list_model_item_removed (GtkListListModel *self,
                                   gpointer          previous)
 {
-  gpointer x;
   guint position;
 
   g_return_if_fail (GTK_IS_LIST_LIST_MODEL (self));
 
   if (previous == NULL)
+    position = 0;
+  else
+    position = 1 + gtk_list_list_model_find (self, previous);
+
+  gtk_list_list_model_item_removed_at (self, position);
+}
+
+void
+gtk_list_list_model_item_moved (GtkListListModel *self,
+                                gpointer          item,
+                                gpointer          previous_previous)
+{
+  guint position, previous_position;
+  guint min, max;
+
+  g_return_if_fail (GTK_IS_LIST_LIST_MODEL (self));
+  g_return_if_fail (item != previous_previous);
+
+  position = gtk_list_list_model_find (self, item);
+
+  if (previous_previous == NULL)
     {
-      position = 0;
+      previous_position = 0;
     }
   else
     {
-      position = 1;
-
-      for (x = self->get_first (self->data);
-           x != previous;
-           x = self->get_next (x, self->data))
-        position++;
+      previous_position = gtk_list_list_model_find (self, previous_previous);
+      if (position > previous_position)
+        previous_position++;
     }
 
-  gtk_list_list_model_item_removed_at (self, position);
+  /* item didn't move */
+  if (position == previous_position)
+    return;
+
+  min = MIN (position, previous_position);
+  max = MAX (position, previous_position) + 1;
+  g_list_model_items_changed (G_LIST_MODEL (self), min, max - min, max - min);
 }
 
 void

gtk/gtklistlistmodelprivate.h

@@ -64,6 +64,9 @@ void                    gtk_list_list_model_item_removed        (GtkListListMode
                                                                  gpointer                previous);
 void                    gtk_list_list_model_item_removed_at     (GtkListListModel       *self,
                                                                  guint                   position);
+void                    gtk_list_list_model_item_moved          (GtkListListModel       *self,
+                                                                 gpointer                item,
+                                                                 gpointer                previous_previous);
 
 void                    gtk_list_list_model_clear               (GtkListListModel       *self);
 

gtk/gtklistview.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright © 2018 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_LIST_VIEW_H__
+#define __GTK_LIST_VIEW_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtkwidget.h>
+#include <gtk/gtklistitem.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_LIST_VIEW         (gtk_list_view_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkListView, gtk_list_view, GTK, LIST_VIEW, GtkWidget)
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget *     gtk_list_view_new                               (void);
+GDK_AVAILABLE_IN_ALL
+GtkWidget *     gtk_list_view_new_with_factory                  (GtkListItemFactory     *factory);
+
+GDK_AVAILABLE_IN_ALL
+GListModel *    gtk_list_view_get_model                         (GtkListView            *self);
+GDK_AVAILABLE_IN_ALL
+void            gtk_list_view_set_model                         (GtkListView            *self,
+                                                                 GListModel             *model);
+GDK_AVAILABLE_IN_ALL
+void            gtk_list_view_set_factory                       (GtkListView            *self,
+                                                                 GtkListItemFactory     *factory);
+GDK_AVAILABLE_IN_ALL
+GtkListItemFactory *
+                gtk_list_view_get_factory                       (GtkListView            *self);
+
+GDK_AVAILABLE_IN_ALL
+void            gtk_list_view_set_show_separators               (GtkListView            *self,
+                                                                 gboolean                show_separators);
+GDK_AVAILABLE_IN_ALL
+gboolean        gtk_list_view_get_show_separators               (GtkListView            *self);
+
+G_END_DECLS
+
+#endif  /* __GTK_LIST_VIEW_H__ */

gtk/gtkpopover.c

@@ -685,13 +685,6 @@ gtk_popover_unrealize (GtkWidget *widget)
   g_clear_object (&priv->surface);
 }
 
-static void
-gtk_popover_move_focus (GtkWidget        *widget,
-                        GtkDirectionType  direction)
-{
-  g_signal_emit_by_name (gtk_widget_get_root (widget), "move-focus", direction);
-}
-
 static void
 gtk_popover_show (GtkWidget *widget)
 {
@@ -1374,7 +1367,6 @@ gtk_popover_class_init (GtkPopoverClass *klass)
   widget_class->measure = gtk_popover_measure;
   widget_class->size_allocate = gtk_popover_size_allocate;
   widget_class->snapshot = gtk_popover_snapshot;
-  widget_class->move_focus = gtk_popover_move_focus;
 
   container_class->add = gtk_popover_add;
   container_class->remove = gtk_popover_remove;

gtk/gtkselectionmodel.h

@@ -33,6 +33,18 @@ G_BEGIN_DECLS
 GDK_AVAILABLE_IN_ALL
 G_DECLARE_INTERFACE (GtkSelectionModel, gtk_selection_model, GTK, SELECTION_MODEL, GListModel)
 
+/**
+ * GTK_INVALID_LIST_POSITION:
+ *
+ * The value used to refer to a guaranteed invalid position in a #GListModel. This
+ * value may be returned from some functions, others may accept it as input.
+ * Its interpretion may differ for different functions.
+ *
+ * Refer to each function's documentation for if this value is allowed and what it
+ * does.
+ */
+#define GTK_INVALID_LIST_POSITION (G_MAXUINT)
+
 /**
  * GtkSelectionModelInterface:
  * @is_selected: Return if the item at the given position is selected.

gtk/gtksingleselection.h

@@ -26,18 +26,6 @@ G_BEGIN_DECLS
 
 #define GTK_TYPE_SINGLE_SELECTION (gtk_single_selection_get_type ())
 
-/**
- * GTK_INVALID_LIST_POSITION:
- *
- * The value used to refer to a guaranteed invalid position in a #GListModel. This
- * value may be returned from some functions, others may accept it as input.
- * Its interpretion may differ for different functions.
- *
- * Refer to each function's documentation for if this value is allowed and what it
- * does.
- */
-#define GTK_INVALID_LIST_POSITION (G_MAXUINT)
-
 GDK_AVAILABLE_IN_ALL
 G_DECLARE_FINAL_TYPE (GtkSingleSelection, gtk_single_selection, GTK, SINGLE_SELECTION, GObject)
 

gtk/gtktextview.c

@@ -1632,6 +1632,7 @@ gtk_text_view_init (GtkTextView *text_view)
   priv->indent = 0;
   priv->tabs = NULL;
   priv->editable = TRUE;
+  priv->cursor_alpha = 1.0;
 
   priv->scroll_after_paste = FALSE;
 

gtk/gtktreeexpander.c

@@ -0,0 +1,682 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "config.h"
+
+#include "gtktreeexpander.h"
+
+#include "gtkbindings.h"
+#include "gtkboxlayout.h"
+#include "gtkgestureclick.h"
+#include "gtkiconprivate.h"
+#include "gtkintl.h"
+#include "gtktreelistmodel.h"
+
+/**
+ * SECTION:gtktreeexpander
+ * @title: GtkTreeExpander
+ * @short_description: An indenting expander button for use in a tree list
+ * @see_also: #GtkTreeListModel
+ *
+ * GtkTreeExpander is a widget that provides an expander for a list.
+ *
+ * It is typically placed as a bottommost child into a #GtkListView to allow
+ * users to expand and collapse children in a list with a #GtkTreeListModel.
+ * It will provide the common UI elements, gestures and keybindings for this
+ * purpose.
+ *
+ * On top of this, the "listitem.expand", "listitem.collapse" and
+ * "listitem.toggle-expand" actions are provided to allow adding custom UI
+ * for managing expanded state.
+ *
+ * The #GtkTreeListModel must be set to not be passthrough. Then it will provide
+ * #GtkTreeListRow items which can be set via gtk_tree_expander_set_list_row()
+ * on the expander. The expander will then watch that row item automatically.  
+ * gtk_tree_expander_set_child() sets the widget that displays the actual row
+ * contents.
+ *
+ * # CSS nodes
+ *
+ * |[<!-- language="plain" -->
+ * treeexpander
+ * ├── [indent]*
+ * ├── [expander]
+ * ╰── <child>
+ * ]|
+ *
+ * GtkTreeExpander has zero or one CSS nodes with the name "expander" that should
+ * display the expander icon. The node will be `:checked` when it is expanded.
+ * If the node is not expandable, an "indent" node will be displayed instead.
+ *
+ * For every level of depth, another "indent" node is prepended.
+ */
+
+struct _GtkTreeExpander
+{
+  GtkWidget parent_instance;
+
+  GtkTreeListRow *list_row;
+  GtkWidget *child;
+
+  GtkWidget *expander;
+  guint notify_handler;
+};
+
+enum
+{
+  PROP_0,
+  PROP_CHILD,
+  PROP_ITEM,
+  PROP_LIST_ROW,
+
+  N_PROPS
+};
+
+G_DEFINE_TYPE (GtkTreeExpander, gtk_tree_expander, GTK_TYPE_WIDGET)
+
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+static void
+gtk_tree_expander_click_gesture_pressed (GtkGestureClick *gesture,
+                                         int              n_press,
+                                         double           x,
+                                         double           y,
+                                         gpointer         unused)
+{
+  GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
+
+  gtk_widget_activate_action (widget, "listitem.toggle-expand", NULL);
+
+  gtk_widget_set_state_flags (widget,
+                              GTK_STATE_FLAG_ACTIVE,
+                              FALSE);
+}
+
+static void
+gtk_tree_expander_click_gesture_released (GtkGestureClick *gesture,
+                                          int              n_press,
+                                          double           x,
+                                          double           y,
+                                          gpointer         unused)
+{
+  gtk_widget_unset_state_flags (gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)),
+                                GTK_STATE_FLAG_ACTIVE);
+}
+
+static void
+gtk_tree_expander_click_gesture_canceled (GtkGestureClick  *gesture,
+                                          GdkEventSequence *sequence,
+                                          gpointer          unused)
+{
+  gtk_widget_unset_state_flags (gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)),
+                                GTK_STATE_FLAG_ACTIVE);
+}
+
+static void
+gtk_tree_expander_update_for_list_row (GtkTreeExpander *self)
+{
+  if (self->list_row == NULL)
+    {
+      GtkWidget *child;
+
+      for (child = gtk_widget_get_first_child (GTK_WIDGET (self));
+           child != self->child;
+           child = gtk_widget_get_first_child (GTK_WIDGET (self)))
+        {
+          gtk_widget_unparent (child);
+        }
+      self->expander = NULL;
+    }
+  else
+    {
+      GtkWidget *child;
+      guint i, depth;
+
+      depth = gtk_tree_list_row_get_depth (self->list_row);
+      if (gtk_tree_list_row_is_expandable (self->list_row))
+        {
+          if (self->expander == NULL)
+            {
+              GtkGesture *gesture;
+
+              self->expander = gtk_icon_new ("expander");
+
+              gesture = gtk_gesture_click_new ();
+              gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
+                                                          GTK_PHASE_BUBBLE);
+              gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture),
+                                                 FALSE);
+              gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture),
+                                             GDK_BUTTON_PRIMARY);
+              g_signal_connect (gesture, "pressed",
+                                G_CALLBACK (gtk_tree_expander_click_gesture_pressed), NULL);
+              g_signal_connect (gesture, "released",
+                                G_CALLBACK (gtk_tree_expander_click_gesture_released), NULL);
+              g_signal_connect (gesture, "cancel",
+                                G_CALLBACK (gtk_tree_expander_click_gesture_canceled), NULL);
+              gtk_widget_add_controller (self->expander, GTK_EVENT_CONTROLLER (gesture));
+
+              gtk_widget_insert_before (self->expander,
+                                        GTK_WIDGET (self),
+                                        self->child);
+            }
+          if (gtk_tree_list_row_get_expanded (self->list_row))
+            gtk_widget_set_state_flags (self->expander, GTK_STATE_FLAG_CHECKED, FALSE);
+          else
+            gtk_widget_unset_state_flags (self->expander, GTK_STATE_FLAG_CHECKED);
+          child = gtk_widget_get_prev_sibling (self->expander);
+        }
+      else
+        {
+          g_clear_pointer (&self->expander, gtk_widget_unparent);
+          depth++;
+          if (self->child)
+            child = gtk_widget_get_prev_sibling (self->child);
+          else
+            child = gtk_widget_get_last_child (GTK_WIDGET (self));
+        }
+
+      for (i = 0; i < depth; i++)
+        {
+          if (child)
+            child = gtk_widget_get_prev_sibling (child);
+          else
+            gtk_widget_insert_after (gtk_icon_new ("indent"), GTK_WIDGET (self), NULL);
+        }
+
+      while (child)
+        {
+          GtkWidget *prev = gtk_widget_get_prev_sibling (child);
+          gtk_widget_unparent (child);
+          child = prev;
+        }
+    }
+}
+
+static void
+gtk_tree_expander_list_row_notify_cb (GtkTreeListRow  *list_row,
+                                      GParamSpec      *pspec,
+                                      GtkTreeExpander *self)
+{
+  if (pspec->name == g_intern_static_string ("expanded"))
+    {
+      if (self->expander)
+        {
+          if (gtk_tree_list_row_get_expanded (list_row))
+            gtk_widget_set_state_flags (self->expander, GTK_STATE_FLAG_CHECKED, FALSE);
+          else
+            gtk_widget_unset_state_flags (self->expander, GTK_STATE_FLAG_CHECKED);
+        }
+    }
+  else if (pspec->name == g_intern_static_string ("item"))
+    {
+      g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ITEM]);
+    }
+  else
+    {
+      /* can this happen other than when destroying the row? */
+      gtk_tree_expander_update_for_list_row (self);
+    }
+}
+
+static gboolean
+gtk_tree_expander_focus (GtkWidget        *widget,
+                         GtkDirectionType  direction)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  /* The idea of this function is the following:
+   * 1. If any child can take focus, do not ever attempt
+   *    to take focus.
+   * 2. Otherwise, if this item is selectable or activatable,
+   *    allow focusing this widget.
+   *
+   * This makes sure every item in a list is focusable for
+   * activation and selection handling, but no useless widgets
+   * get focused and moving focus is as fast as possible.
+   */
+  if (self->child)
+    {
+      if (gtk_widget_get_focus_child (widget))
+        return FALSE;
+      if (gtk_widget_child_focus (self->child, direction))
+        return TRUE;
+    }
+
+  if (!gtk_widget_get_can_focus (widget))
+    return FALSE;
+
+  gtk_widget_grab_focus (widget);
+  return TRUE;
+}
+
+static void
+gtk_tree_expander_clear_list_row (GtkTreeExpander *self)
+{
+  if (self->list_row == NULL)
+    return;
+
+  g_signal_handler_disconnect (self->list_row, self->notify_handler);
+  self->notify_handler = 0;
+  g_clear_object (&self->list_row);
+}
+
+static void
+gtk_tree_expander_dispose (GObject *object)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (object);
+
+  gtk_tree_expander_clear_list_row (self);
+  gtk_tree_expander_update_for_list_row (self);
+
+  g_clear_pointer (&self->child, gtk_widget_unparent);
+
+  g_assert (self->expander == NULL);
+
+  G_OBJECT_CLASS (gtk_tree_expander_parent_class)->dispose (object);
+}
+
+static void
+gtk_tree_expander_get_property (GObject    *object,
+                                guint       property_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (object);
+
+  switch (property_id)
+    {
+    case PROP_CHILD:
+      g_value_set_object (value, self->child);
+      break;
+
+    case PROP_ITEM:
+      g_value_set_object (value, gtk_tree_expander_get_item (self));
+      break;
+
+    case PROP_LIST_ROW:
+      g_value_set_object (value, self->list_row);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_tree_expander_set_property (GObject      *object,
+                                guint         property_id,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (object);
+
+  switch (property_id)
+    {
+    case PROP_CHILD:
+      gtk_tree_expander_set_child (self, g_value_get_object (value));
+      break;
+
+    case PROP_LIST_ROW:
+      gtk_tree_expander_set_list_row (self, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_tree_expander_expand (GtkWidget  *widget,
+                          const char *action_name,
+                          GVariant   *parameter)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  if (self->list_row == NULL)
+    return;
+
+  gtk_tree_list_row_set_expanded (self->list_row, TRUE);
+}
+
+static void
+gtk_tree_expander_collapse (GtkWidget  *widget,
+                            const char *action_name,
+                            GVariant   *parameter)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  if (self->list_row == NULL)
+    return;
+
+  gtk_tree_list_row_set_expanded (self->list_row, FALSE);
+}
+
+static void
+gtk_tree_expander_toggle_expand (GtkWidget  *widget,
+                                 const char *action_name,
+                                 GVariant   *parameter)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  if (self->list_row == NULL)
+    return;
+
+  gtk_tree_list_row_set_expanded (self->list_row, !gtk_tree_list_row_get_expanded (self->list_row));
+}
+
+static void
+expand_collapse_right (GtkWidget *widget,
+                       gpointer   unused)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  if (self->list_row == NULL)
+    return;
+
+  gtk_tree_list_row_set_expanded (self->list_row, gtk_widget_get_direction (widget) != GTK_TEXT_DIR_RTL);
+}
+
+static void
+expand_collapse_left (GtkWidget *widget,
+                      gpointer   unused)
+{
+  GtkTreeExpander *self = GTK_TREE_EXPANDER (widget);
+
+  if (self->list_row == NULL)
+    return;
+
+  gtk_tree_list_row_set_expanded (self->list_row, gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+}
+
+static void
+gtk_tree_expander_class_init (GtkTreeExpanderClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GtkBindingSet *binding_set;
+
+  widget_class->focus = gtk_tree_expander_focus;
+
+  gobject_class->dispose = gtk_tree_expander_dispose;
+  gobject_class->get_property = gtk_tree_expander_get_property;
+  gobject_class->set_property = gtk_tree_expander_set_property;
+
+  /**
+   * GtkTreeExpander:child:
+   *
+   * The child widget with the actual contents
+   */
+  properties[PROP_CHILD] =
+    g_param_spec_object ("child",
+                         P_("Child"),
+                         P_("The child widget with the actual contents"),
+                         GTK_TYPE_WIDGET,
+                         G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GtkTreeExpander:item:
+   *
+   * The item held by this expander's row
+   */
+  properties[PROP_ITEM] =
+      g_param_spec_object ("item",
+                           P_("Item"),
+                           P_("The item held by this expander's row"),
+                           G_TYPE_OBJECT,
+                           G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  /**
+   * GtkTreeExpander:list-row:
+   *
+   * The list row to track for expander state
+   */
+  properties[PROP_LIST_ROW] =
+    g_param_spec_object ("list-row",
+                         P_("List row"),
+                         P_("The list row to track for expander state"),
+                         GTK_TYPE_TREE_LIST_ROW,
+                         G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+
+  /**
+   * GtkTreeExpander|listitem.expand:
+   *
+   * Expands the expander if it can be expanded.
+   */
+  gtk_widget_class_install_action (widget_class,
+                                   "listitem.expand",
+                                   NULL,
+                                   gtk_tree_expander_expand);
+
+  /**
+   * GtkTreeExpander|listitem.collapse:
+   *
+   * Collapses the expander.
+   */
+  gtk_widget_class_install_action (widget_class,
+                                   "listitem.collapse",
+                                   NULL,
+                                   gtk_tree_expander_collapse);
+
+  /**
+   * GtkTreeExpander|listitem.toggle-expand:
+   *
+   * Tries to expand the expander if it was collapsed or collapses it if
+   * it was expanded.
+   */
+  gtk_widget_class_install_action (widget_class,
+                                   "listitem.toggle-expand",
+                                   NULL,
+                                   gtk_tree_expander_toggle_expand);
+
+  binding_set = gtk_binding_set_by_class (klass);
+
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_plus, 0,
+                                "listitem.expand", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_KP_Add, 0,
+                                "listitem.expand", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_asterisk, 0,
+                                "listitem.expand", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_KP_Multiply, 0,
+                                "listitem.expand", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_minus, 0,
+                                "listitem.collapse", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_KP_Subtract, 0,
+                                "listitem.collapse", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_slash, 0,
+                                "listitem.collapse", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_KP_Divide, 0,
+                                "listitem.collapse", NULL);
+
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_Right, GDK_SHIFT_MASK,
+                                  expand_collapse_right, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_KP_Right, GDK_SHIFT_MASK,
+                                  expand_collapse_right, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
+                                  expand_collapse_right, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
+                                  expand_collapse_right, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_Left, GDK_SHIFT_MASK,
+                                  expand_collapse_left, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_KP_Left, GDK_SHIFT_MASK,
+                                  expand_collapse_left, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
+                                  expand_collapse_left, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
+                                  expand_collapse_left, NULL, NULL);
+
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_space, GDK_CONTROL_MASK,
+                                "listitem.toggle-expand", NULL);
+  gtk_binding_entry_add_action (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK,
+                                "listitem.toggle-expand", NULL);
+
+#if 0
+  /* These can't be implementes yet. */
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_BackSpace, 0, go_to_parent_row, NULL, NULL);
+  gtk_binding_entry_add_callback (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, go_to_parent_row, NULL, NULL);
+#endif
+
+  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
+  gtk_widget_class_set_css_name (widget_class, I_("treeexpander"));
+}
+
+static void
+gtk_tree_expander_init (GtkTreeExpander *self)
+{
+  gtk_widget_set_can_focus (GTK_WIDGET (self), TRUE);
+}
+
+/**
+ * gtk_tree_expander_new:
+ *
+ * Creates a new #GtkTreeExpander
+ *
+ * Returns: a new #GtkTreeExpander
+ **/
+GtkWidget *
+gtk_tree_expander_new (void)
+{
+  return g_object_new (GTK_TYPE_TREE_EXPANDER,
+                       NULL);
+}
+
+/**
+ * gtk_tree_expander_get_child
+ * @self: a #GtkTreeExpander
+ *
+ * Gets the child widget displayed by @self.
+ *
+ * Returns: (nullable) (transfer none): The child displayed by @self
+ **/
+GtkWidget *
+gtk_tree_expander_get_child (GtkTreeExpander *self)
+{
+  g_return_val_if_fail (GTK_IS_TREE_EXPANDER (self), NULL);
+
+  return self->child;
+}
+
+/**
+ * gtk_tree_expander_set_child:
+ * @self: a #GtkTreeExpander widget
+ * @child: (nullable): a #GtkWidget, or %NULL
+ *
+ * Sets the content widget to display.
+ */
+void
+gtk_tree_expander_set_child (GtkTreeExpander *self,
+                             GtkWidget       *child)
+{
+  g_return_if_fail (GTK_IS_TREE_EXPANDER (self));
+  g_return_if_fail (child == NULL || GTK_IS_WIDGET (child));
+
+  if (self->child == child)
+    return;
+
+  g_clear_pointer (&self->child, gtk_widget_unparent);
+
+  if (child)
+    {
+      self->child = child;
+      gtk_widget_set_parent (child, GTK_WIDGET (self));
+    }
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_CHILD]);
+}
+
+/**
+ * gtk_tree_expander_get_item
+ * @self: a #GtkTreeExpander
+ *
+ * Forwards the item set on the #GtkTreeListRow that @self is managing.
+ *
+ * This call is essentially equivalent to calling
+ * `gtk_tree_list_row_get_item (gtk_tree_expander_get_list_row (@self))`.
+ *
+ * Returns: (nullable) (transfer none): The item of the row
+ **/
+gpointer
+gtk_tree_expander_get_item (GtkTreeExpander *self)
+{
+  g_return_val_if_fail (GTK_IS_TREE_EXPANDER (self), NULL);
+
+  if (self->list_row == NULL)
+    return NULL;
+
+  return gtk_tree_list_row_get_item (self->list_row);
+}
+
+/**
+ * gtk_tree_expander_get_list_row
+ * @self: a #GtkTreeExpander
+ *
+ * Gets the list row managed by @self.
+ *
+ * Returns: (nullable) (transfer none): The list row displayed by @self
+ **/
+GtkTreeListRow *
+gtk_tree_expander_get_list_row (GtkTreeExpander *self)
+{
+  g_return_val_if_fail (GTK_IS_TREE_EXPANDER (self), NULL);
+
+  return self->list_row;
+}
+
+/**
+ * gtk_tree_expander_set_list_row:
+ * @self: a #GtkTreeExpander widget
+ * @list_row: (nullable): a #GtkTreeListRow, or %NULL
+ *
+ * Sets the tree list row that this expander should manage.
+ */
+void
+gtk_tree_expander_set_list_row (GtkTreeExpander *self,
+                                GtkTreeListRow  *list_row)
+{
+  g_return_if_fail (GTK_IS_TREE_EXPANDER (self));
+  g_return_if_fail (list_row == NULL || GTK_IS_TREE_LIST_ROW (list_row));
+
+  if (self->list_row == list_row)
+    return;
+
+  g_object_freeze_notify (G_OBJECT (self));
+
+  gtk_tree_expander_clear_list_row (self);
+
+  if (list_row)
+    {
+      self->list_row = g_object_ref (list_row);
+      self->notify_handler = g_signal_connect (list_row,
+                                               "notify",
+                                               G_CALLBACK (gtk_tree_expander_list_row_notify_cb),
+                                               self);
+    }
+
+  gtk_tree_expander_update_for_list_row (self);
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_LIST_ROW]);
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ITEM]);
+
+  g_object_thaw_notify (G_OBJECT (self));
+}
+

gtk/gtktreeexpander.h

@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2019 Benjamin Otte
+ *
+ * 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 2.1 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/>.
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_TREE_EXPANDER_H__
+#define __GTK_TREE_EXPANDER_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtktreelistmodel.h>
+#include <gtk/gtkwidget.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_TREE_EXPANDER         (gtk_tree_expander_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkTreeExpander, gtk_tree_expander, GTK, TREE_EXPANDER, GtkWidget)
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget *             gtk_tree_expander_new                   (void);
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget *             gtk_tree_expander_get_child             (GtkTreeExpander        *self);
+GDK_AVAILABLE_IN_ALL
+void                    gtk_tree_expander_set_child             (GtkTreeExpander        *self,
+                                                                 GtkWidget              *child);
+GDK_AVAILABLE_IN_ALL
+gpointer                gtk_tree_expander_get_item              (GtkTreeExpander        *self);
+GDK_AVAILABLE_IN_ALL
+GtkTreeListRow *        gtk_tree_expander_get_list_row          (GtkTreeExpander        *self);
+GDK_AVAILABLE_IN_ALL
+void                    gtk_tree_expander_set_list_row          (GtkTreeExpander        *self,
+                                                                 GtkTreeListRow         *list_row);
+
+
+G_END_DECLS
+
+#endif  /* __GTK_TREE_EXPANDER_H__ */

gtk/gtktypes.h

@@ -39,6 +39,7 @@ typedef struct _GtkClipboard	       GtkClipboard;
 typedef struct _GtkEventController     GtkEventController;
 typedef struct _GtkGesture             GtkGesture;
 typedef struct _GtkLayoutManager       GtkLayoutManager;
+typedef struct _GtkListItemFactory     GtkListItemFactory;
 typedef struct _GtkNative              GtkNative;
 typedef struct _GtkRequisition	       GtkRequisition;
 typedef struct _GtkRoot  	       GtkRoot;

gtk/gtkwidget.c

@@ -6524,7 +6524,7 @@ gtk_widget_reposition_after (GtkWidget *widget,
   if (parent->priv->children_observer)
     {
       if (prev_previous)
-        g_warning ("oops");
+        gtk_list_list_model_item_moved (parent->priv->children_observer, widget, prev_previous);
       else
         gtk_list_list_model_item_added (parent->priv->children_observer, widget);
     }

gtk/inspector/object-tree.c

@@ -46,6 +46,7 @@
 #include "gtksizegroup.h"
 #include "gtktextview.h"
 #include "gtktogglebutton.h"
+#include "gtktreeexpander.h"
 #include "gtktreelistmodel.h"
 #include "gtktreeview.h"
 #include "gtktreeselection.h"
@@ -1019,7 +1020,6 @@ gtk_inspector_object_tree_create_list_widget (gpointer row_item,
   GtkInspectorObjectTree *wt = user_data;
   gpointer item;
   GtkWidget *row, *box, *column, *child;
-  guint depth;
 
   item = gtk_tree_list_row_get_item (row_item);
 
@@ -1036,37 +1036,14 @@ gtk_inspector_object_tree_create_list_widget (gpointer row_item,
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
   gtk_container_add (GTK_CONTAINER (row), box);
 
-  column = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-  gtk_size_group_add_widget (wt->priv->type_size_group, column);
-  gtk_container_add (GTK_CONTAINER (box), column);
-
   /* expander */
-  depth = gtk_tree_list_row_get_depth (row_item);
-  if (depth > 0)
-    {
-      child = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-      gtk_widget_set_size_request (child, 16 * depth, 0);
-      gtk_container_add (GTK_CONTAINER (column), child);
-    }
-  if (gtk_tree_list_row_is_expandable (row_item))
-    {
-      GtkWidget *title, *arrow;
+  child = gtk_tree_expander_new ();
+  gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (child), row_item);
+  gtk_size_group_add_widget (wt->priv->type_size_group, child);
+  gtk_container_add (GTK_CONTAINER (box), child);
 
-      child = g_object_new (GTK_TYPE_BOX, "css-name", "expander", NULL);
-      
-      title = g_object_new (GTK_TYPE_TOGGLE_BUTTON, "css-name", "title", NULL);
-      gtk_button_set_relief (GTK_BUTTON (title), GTK_RELIEF_NONE);
-      g_object_bind_property (row_item, "expanded", title, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
-      gtk_container_add (GTK_CONTAINER (child), title);
-
-      arrow = gtk_icon_new ("arrow");
-      gtk_container_add (GTK_CONTAINER (title), arrow);
-    }
-  else
-    {
-      child = gtk_image_new (); /* empty whatever */
-    }
-  gtk_container_add (GTK_CONTAINER (column), child);
+  column = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_tree_expander_set_child (GTK_TREE_EXPANDER (child), column);
 
   /* 1st column: type name */
   child = gtk_label_new (G_OBJECT_TYPE_NAME (item));

gtk/inspector/recorder.c

@@ -21,12 +21,16 @@
 
 #include <gtk/gtkbox.h>
 #include <gtk/gtkfilechooserdialog.h>
+#include <gtk/gtkfunctionslistitemfactory.h>
 #include <gtk/gtklabel.h>
 #include <gtk/gtklistbox.h>
+#include <gtk/gtklistview.h>
 #include <gtk/gtkmessagedialog.h>
 #include <gtk/gtkpicture.h>
 #include <gtk/gtkpopover.h>
+#include <gtk/gtksingleselection.h>
 #include <gtk/gtktogglebutton.h>
+#include <gtk/gtktreeexpander.h>
 #include <gtk/gtktreelistmodel.h>
 #include <gtk/gtktreemodel.h>
 #include <gtk/gtktreeview.h>
@@ -49,6 +53,8 @@ struct _GtkInspectorRecorderPrivate
 {
   GListModel *recordings;
   GtkTreeListModel *render_node_model;
+  GListStore *render_node_root_model;
+  GtkSingleSelection *render_node_selection;
 
   GtkWidget *recordings_list;
   GtkWidget *render_node_view;
@@ -293,64 +299,56 @@ node_name (GskRenderNode *node)
     }
 }
 
-static GtkWidget *
-create_widget_for_render_node (gpointer row_item,
-                               gpointer unused)
+static void
+setup_widget_for_render_node (GtkListItem *list_item,
+                              gpointer     unused)
 {
-  GdkPaintable *paintable;
-  GskRenderNode *node;
-  GtkWidget *row, *box, *child;
-  char *name;
-  guint depth;
-
-  paintable = gtk_tree_list_row_get_item (row_item);
-  node = gtk_render_node_paintable_get_render_node (GTK_RENDER_NODE_PAINTABLE (paintable));
-  row = gtk_list_box_row_new ();
-  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
-  gtk_container_add (GTK_CONTAINER (row), box);
+  GtkWidget *expander, *box, *child;
 
   /* expander */
-  depth = gtk_tree_list_row_get_depth (row_item);
-  if (depth > 0)
-    {
-      child = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-      gtk_widget_set_size_request (child, 16 * depth, 0);
-      gtk_container_add (GTK_CONTAINER (box), child);
-    }
-  if (gtk_tree_list_row_is_expandable (row_item))
-    {
-      GtkWidget *title, *arrow;
+  expander = gtk_tree_expander_new ();
+  gtk_container_add (GTK_CONTAINER (list_item), expander);
 
-      child = g_object_new (GTK_TYPE_BOX, "css-name", "expander", NULL);
-      
-      title = g_object_new (GTK_TYPE_TOGGLE_BUTTON, "css-name", "title", NULL);
-      gtk_button_set_relief (GTK_BUTTON (title), GTK_RELIEF_NONE);
-      g_object_bind_property (row_item, "expanded", title, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
-      gtk_container_add (GTK_CONTAINER (child), title);
-      g_object_set_data_full (G_OBJECT (row), "make-sure-its-not-unreffed", g_object_ref (row_item), g_object_unref);
-
-      arrow = gtk_icon_new ("arrow");
-      gtk_container_add (GTK_CONTAINER (title), arrow);
-    }
-  else
-    {
-      child = gtk_image_new (); /* empty whatever */
-    }
-  gtk_container_add (GTK_CONTAINER (box), child);
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
+  gtk_tree_expander_set_child (GTK_TREE_EXPANDER (expander), box);
 
   /* icon */
-  child = gtk_image_new_from_paintable (paintable);
+  child = gtk_image_new ();
   gtk_container_add (GTK_CONTAINER (box), child);
 
   /* name */
-  name = node_name (node);
-  child = gtk_label_new (name);
-  g_free (name);
+  child = gtk_label_new (NULL);
   gtk_container_add (GTK_CONTAINER (box), child);
+}
 
-  g_object_unref (paintable);
+static void
+bind_widget_for_render_node (GtkListItem *list_item,
+                             gpointer     unused)
+{
+  GdkPaintable *paintable;
+  GskRenderNode *node;
+  GtkTreeListRow *row_item;
+  GtkWidget *expander, *box, *child;
+  char *name;
 
-  return row;
+  row_item = gtk_list_item_get_item (list_item);
+  paintable = gtk_tree_list_row_get_item (row_item);
+  node = gtk_render_node_paintable_get_render_node (GTK_RENDER_NODE_PAINTABLE (paintable));
+
+  /* expander */
+  expander = gtk_bin_get_child (GTK_BIN (list_item));
+  gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (expander), row_item);
+  box = gtk_tree_expander_get_child (GTK_TREE_EXPANDER (expander));
+
+  /* icon */
+  child = gtk_widget_get_first_child (box);
+  gtk_image_set_from_paintable (GTK_IMAGE (child), paintable);
+
+  /* name */
+  name = node_name (node);
+  child = gtk_widget_get_last_child (box);
+  gtk_label_set_label (GTK_LABEL (child), name);
+  g_free (name);
 }
 
 static void
@@ -366,11 +364,8 @@ recordings_list_row_selected (GtkListBox           *box,
   else
     recording = NULL;
 
-  g_clear_object (&priv->render_node_model);
-
   if (GTK_INSPECTOR_IS_RENDER_RECORDING (recording))
     {
-      GListStore *root_model;
       graphene_rect_t bounds;
       GskRenderNode *node;
       GdkPaintable *paintable;
@@ -380,14 +375,10 @@ recordings_list_row_selected (GtkListBox           *box,
       paintable = gtk_render_node_paintable_new (node, &bounds);
       gtk_picture_set_paintable (GTK_PICTURE (priv->render_node_view), paintable);
 
-      root_model = g_list_store_new (GDK_TYPE_PAINTABLE);
-      g_list_store_append (root_model, paintable);
-      priv->render_node_model = gtk_tree_list_model_new (FALSE,
-                                                         G_LIST_MODEL (root_model),
-                                                         TRUE,
-                                                         create_list_model_for_render_node_paintable,
-                                                         NULL, NULL);
-      g_object_unref (root_model);
+      g_list_store_splice (priv->render_node_root_model,
+                           0, g_list_model_get_n_items (G_LIST_MODEL (priv->render_node_root_model)),
+                           (gpointer[1]) { paintable },
+                           1);
       g_object_unref (paintable);
 
       g_print ("%u render nodes\n", g_list_model_get_n_items (G_LIST_MODEL (priv->render_node_model)));
@@ -395,14 +386,9 @@ recordings_list_row_selected (GtkListBox           *box,
   else
     {
       gtk_picture_set_paintable (GTK_PICTURE (priv->render_node_view), NULL);
+      g_list_store_remove_all (priv->render_node_root_model);
     }
 
-
-  gtk_list_box_bind_model (GTK_LIST_BOX (priv->render_node_list),
-                           G_LIST_MODEL (priv->render_node_model),
-                           create_widget_for_render_node,
-                           NULL, NULL);
-
   if (recording)
     g_object_unref (recording);
 }
@@ -919,20 +905,16 @@ get_selected_node (GtkInspectorRecorder *recorder)
 {
   GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
   GtkTreeListRow *row_item;
-  GtkListBoxRow *row;
   GdkPaintable *paintable;
   GskRenderNode *node;
 
-  row = gtk_list_box_get_selected_row (GTK_LIST_BOX (priv->render_node_list));
-  if (row == NULL)
+  row_item = gtk_single_selection_get_selected_item (priv->render_node_selection);
+  if (row_item == NULL)
     return NULL;
 
-  row_item = g_list_model_get_item (G_LIST_MODEL (priv->render_node_model),
-                                    gtk_list_box_row_get_index (row));
   paintable = gtk_tree_list_row_get_item (row_item);
   node = gtk_render_node_paintable_get_render_node (GTK_RENDER_NODE_PAINTABLE (paintable));
   g_object_unref (paintable);
-  g_object_unref (row_item);
 
   return node;
 }
@@ -947,14 +929,10 @@ render_node_list_selection_changed (GtkListBox           *list,
   GdkPaintable *paintable;
   GtkTreeListRow *row_item;
 
-  if (row == NULL)
-    {
-      gtk_widget_set_sensitive (priv->render_node_save_button, FALSE);
-      return;
-    }
+  row_item = gtk_single_selection_get_selected_item (priv->render_node_selection);
+  if (row_item == NULL)
+    return;
 
-  row_item = g_list_model_get_item (G_LIST_MODEL (priv->render_node_model),
-                                    gtk_list_box_row_get_index (row));
   paintable = gtk_tree_list_row_get_item (row_item);
 
   gtk_widget_set_sensitive (priv->render_node_save_button, TRUE);
@@ -963,7 +941,6 @@ render_node_list_selection_changed (GtkListBox           *list,
   populate_render_node_properties (GTK_LIST_STORE (priv->render_node_properties), node);
 
   g_object_unref (paintable);
-  g_object_unref (row_item);
 }
 
 static void
@@ -1233,6 +1210,8 @@ gtk_inspector_recorder_dispose (GObject *object)
   GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
 
   g_clear_object (&priv->render_node_model);
+  g_clear_object (&priv->render_node_root_model);
+  g_clear_object (&priv->render_node_selection);
 
   G_OBJECT_CLASS (gtk_inspector_recorder_parent_class)->dispose (object);
 }
@@ -1273,7 +1252,6 @@ gtk_inspector_recorder_class_init (GtkInspectorRecorderClass *klass)
 
   gtk_widget_class_bind_template_callback (widget_class, recordings_clear_all);
   gtk_widget_class_bind_template_callback (widget_class, recordings_list_row_selected);
-  gtk_widget_class_bind_template_callback (widget_class, render_node_list_selection_changed);
   gtk_widget_class_bind_template_callback (widget_class, render_node_save);
   gtk_widget_class_bind_template_callback (widget_class, node_property_activated);
 }
@@ -1282,6 +1260,7 @@ static void
 gtk_inspector_recorder_init (GtkInspectorRecorder *recorder)
 {
   GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
+  GtkListItemFactory *factory;
 
   gtk_widget_init_template (GTK_WIDGET (recorder));
 
@@ -1291,6 +1270,23 @@ gtk_inspector_recorder_init (GtkInspectorRecorder *recorder)
                            recorder,
                            NULL);
 
+  priv->render_node_root_model = g_list_store_new (GDK_TYPE_PAINTABLE);
+  priv->render_node_model = gtk_tree_list_model_new (FALSE,
+                                                     G_LIST_MODEL (priv->render_node_root_model),
+                                                     TRUE,
+                                                     create_list_model_for_render_node_paintable,
+                                                     NULL, NULL);
+  priv->render_node_selection = gtk_single_selection_new (G_LIST_MODEL (priv->render_node_model));
+  g_signal_connect (priv->render_node_selection, "notify::selected-item", G_CALLBACK (render_node_list_selection_changed), recorder);
+
+  factory = gtk_functions_list_item_factory_new (setup_widget_for_render_node,
+                                                 bind_widget_for_render_node,
+                                                 NULL, NULL);
+  gtk_list_view_set_factory (GTK_LIST_VIEW (priv->render_node_list), factory);
+  g_object_unref (factory);
+  gtk_list_view_set_model (GTK_LIST_VIEW (priv->render_node_list),
+                           G_LIST_MODEL (priv->render_node_selection));
+
   priv->render_node_properties = GTK_TREE_MODEL (gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN, GDK_TYPE_TEXTURE));
   gtk_tree_view_set_model (GTK_TREE_VIEW (priv->node_property_tree), priv->render_node_properties);
   g_object_unref (priv->render_node_properties);

gtk/inspector/recorder.ui

@@ -73,15 +73,14 @@
               <object class="GtkFrame">
                 <child>
                   <object class="GtkScrolledWindow">
-                    <property name="hscrollbar-policy">never</property>
                     <property name="propagate-natural-width">1</property>
                     <style>
                       <class name="sidebar"/>
                     </style>
                     <child>
-                      <object class="GtkListBox" id="render_node_list">
+                      <object class="GtkListView" id="render_node_list">
                         <property name="vexpand">1</property>
-                        <signal name="row-selected" handler="render_node_list_selection_changed"/>
+                        <property name="hexpand">1</property>
                       </object>
                     </child>
                   </object>

gtk/meson.build

@@ -177,6 +177,7 @@ gtk_public_sources = files([
   'gtkbuildable.c',
   'gtkbuilder.c',
   'gtkbuilderparser.c',
+  'gtkbuilderlistitemfactory.c',
   'gtkbutton.c',
   'gtkcalendar.c',
   'gtkcellarea.c',
@@ -212,6 +213,7 @@ gtk_public_sources = files([
   'gtkcontainer.c',
   'gtkcssprovider.c',
   'gtkdialog.c',
+  'gtkdirectorylist.c',
   'gtkdnd.c',
   'gtkdragdest.c',
   'gtkdragsource.c',
@@ -245,6 +247,7 @@ gtk_public_sources = files([
   'gtkfontchooserutils.c',
   'gtkfontchooserwidget.c',
   'gtkframe.c',
+  'gtkfunctionslistitemfactory.c',
   'gtkgesture.c',
   'gtkgesturedrag.c',
   'gtkgesturelongpress.c',
@@ -258,6 +261,7 @@ gtk_public_sources = files([
   'gtkglarea.c',
   'gtkgrid.c',
   'gtkgridlayout.c',
+  'gtkgridview.c',
   'gtkheaderbar.c',
   'gtkicontheme.c',
   'gtkiconview.c',
@@ -274,8 +278,12 @@ gtk_public_sources = files([
   'gtklevelbar.c',
   'gtklinkbutton.c',
   'gtklistbox.c',
+  'gtklistitem.c',
+  'gtklistitemfactory.c',
+  'gtklistitemmanager.c',
   'gtklistlistmodel.c',
   'gtkliststore.c',
+  'gtklistview.c',
   'gtklockbutton.c',
   'gtkmain.c',
   'gtkmaplistmodel.c',
@@ -390,6 +398,7 @@ gtk_public_sources = files([
   'gtktooltip.c',
   'gtktooltipwindow.c',
   'gtktreednd.c',
+  'gtktreeexpander.c',
   'gtktreelistmodel.c',
   'gtktreemenu.c',
   'gtktreemodel.c',
@@ -442,6 +451,7 @@ gtk_public_headers = files([
   'gtkboxlayout.h',
   'gtkbuildable.h',
   'gtkbuilder.h',
+  'gtkbuilderlistitemfactory.h',
   'gtkbutton.h',
   'gtkcalendar.h',
   'gtkcenterbox.h',
@@ -478,6 +488,7 @@ gtk_public_headers = files([
   'gtkcustomlayout.h',
   'gtkdebug.h',
   'gtkdialog.h',
+  'gtkdirectorylist.h',
   'gtkdnd.h',
   'gtkdragdest.h',
   'gtkdragsource.h',
@@ -509,6 +520,7 @@ gtk_public_headers = files([
   'gtkfontchooserdialog.h',
   'gtkfontchooserwidget.h',
   'gtkframe.h',
+  'gtkfunctionslistitemfactory.h',
   'gtkgesture.h',
   'gtkgesturedrag.h',
   'gtkgesturelongpress.h',
@@ -522,6 +534,7 @@ gtk_public_headers = files([
   'gtkglarea.h',
   'gtkgrid.h',
   'gtkgridlayout.h',
+  'gtkgridview.h',
   'gtkheaderbar.h',
   'gtkicontheme.h',
   'gtkiconview.h',
@@ -537,7 +550,10 @@ gtk_public_headers = files([
   'gtklevelbar.h',
   'gtklinkbutton.h',
   'gtklistbox.h',
+  'gtklistitem.h',
+  'gtklistitemfactory.h',
   'gtkliststore.h',
+  'gtklistview.h',
   'gtklockbutton.h',
   'gtkmain.h',
   'gtkmaplistmodel.h',
@@ -632,6 +648,7 @@ gtk_public_headers = files([
   'gtktoolshell.h',
   'gtktooltip.h',
   'gtktreednd.h',
+  'gtktreeexpander.h',
   'gtktreelistmodel.h',
   'gtktreemodel.h',
   'gtktreemodelfilter.h',

gtk/theme/Adwaita/_common.scss

@@ -3734,7 +3734,10 @@ list {
   row.expander { padding: 0px; }
   row.expander .row-header { padding: 2px; }
 
-  &.separators row:not(:first-child) {
+  &.separators.horizontal row:not(:first-child) {
+    border-left: 1px solid $borders_color;
+  }
+  &.separators:not(.horizontal) row:not(:first-child) {
     border-top: 1px solid $borders_color;
   }
 }

gtk/theme/Adwaita/gtk-contained-dark.css

@@ -1627,7 +1627,9 @@ list row.expander { padding: 0px; }
 
 list row.expander .row-header { padding: 2px; }
 
-list.separators row:not(:first-child) { border-top: 1px solid #1b1b1b; }
+list.separators.horizontal row:not(:first-child) { border-left: 1px solid #1b1b1b; }
+
+list.separators:not(.horizontal) row:not(:first-child) { border-top: 1px solid #1b1b1b; }
 
 row { transition: all 150ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
 

gtk/theme/Adwaita/gtk-contained.css

@@ -1643,7 +1643,9 @@ list row.expander { padding: 0px; }
 
 list row.expander .row-header { padding: 2px; }
 
-list.separators row:not(:first-child) { border-top: 1px solid #cdc7c2; }
+list.separators.horizontal row:not(:first-child) { border-left: 1px solid #cdc7c2; }
+
+list.separators:not(.horizontal) row:not(:first-child) { border-top: 1px solid #cdc7c2; }
 
 row { transition: all 150ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
 

tests/meson.build

@@ -59,6 +59,8 @@ gtk_tests = [
   ['testlist2'],
   ['testlist3'],
   ['testlist4'],
+  ['testlistview'],
+  ['testlistview-animating'],
   ['testlevelbar'],
   ['testlockbutton'],
   ['testmenubutton'],

tests/testlistview-animating.c

@@ -0,0 +1,192 @@
+#include <gtk/gtk.h>
+
+#ifdef SMALL
+#define AVERAGE 15
+#define VARIANCE 10
+#else
+#define AVERAGE 300
+#define VARIANCE 200
+#endif
+
+static void
+update_label (GtkListItem *list_item,
+              GParamSpec  *pspec,
+              GtkLabel    *label)
+{
+  gpointer item;
+  char *s;
+
+  item = gtk_list_item_get_item (list_item);
+
+  if (item)
+    s = g_strdup_printf ("%u: %s",
+                         gtk_list_item_get_position (list_item),
+                         (const char *) g_object_get_data (item, "message"));
+  else
+    s = NULL;
+
+  gtk_label_set_text (label, s);
+
+  g_free (s);
+}
+
+static void
+setup_list_item (GtkListItem *list_item,
+                 gpointer     unused)
+{
+  GtkWidget *label = gtk_label_new ("");
+
+  g_signal_connect (list_item, "notify", G_CALLBACK (update_label), label);
+  gtk_container_add (GTK_CONTAINER (list_item), label);
+}
+
+static GtkWidget *
+create_widget_for_listbox (gpointer item,
+                           gpointer unused)
+{
+  const char *message = g_object_get_data (item, "message");
+  GtkWidget *widget;
+
+  widget = gtk_label_new (message);
+
+  return widget;
+}
+
+static gboolean reverse_sort;
+
+static int
+compare (gconstpointer first,
+         gconstpointer second,
+         gpointer      unused)
+{
+  int diff = (GPOINTER_TO_UINT (g_object_get_data ((gpointer) first, "counter")) % 1000)
+             - (GPOINTER_TO_UINT (g_object_get_data ((gpointer) second, "counter")) % 1000);
+
+  if (reverse_sort)
+    return -diff;
+  else
+    return diff;
+}
+
+static void
+add (GListStore *store)
+{
+  static guint counter;
+  GObject *o;
+  char *message;
+  guint pos;
+
+  counter++;
+  o = g_object_new (G_TYPE_OBJECT, NULL);
+  g_object_set_data (o, "counter", GUINT_TO_POINTER (counter));
+  message = g_strdup_printf ("Item %u", counter);
+  g_object_set_data_full (o, "message", message, g_free);
+
+  pos = g_random_int_range (0, g_list_model_get_n_items (G_LIST_MODEL (store)) + 1);
+  g_list_store_insert (store, pos, o);
+  g_object_unref (o);
+}
+
+static void
+delete (GListStore *store)
+{
+  guint pos;
+
+  pos = g_random_int_range (0, g_list_model_get_n_items (G_LIST_MODEL (store)));
+  g_list_store_remove (store, pos);
+}
+
+static gboolean
+do_stuff (gpointer store)
+{
+  if (g_random_int_range (AVERAGE - VARIANCE, AVERAGE + VARIANCE) < g_list_model_get_n_items (store))
+    delete (store);
+  else
+    add (store);
+
+  return G_SOURCE_CONTINUE;
+}
+
+static gboolean
+revert_sort (gpointer sort)
+{
+  reverse_sort = !reverse_sort;
+
+  gtk_sort_list_model_resort (sort);
+
+  return G_SOURCE_CONTINUE;
+}
+
+int
+main (int   argc,
+      char *argv[])
+{
+  GtkWidget *win, *hbox, *vbox, *sw, *listview, *listbox, *label;
+  GListStore *store;
+  GtkSortListModel *sort;
+  guint i;
+
+  gtk_init ();
+
+  store = g_list_store_new (G_TYPE_OBJECT);
+  for (i = 0; i < AVERAGE; i++)
+    add (store);
+  sort = gtk_sort_list_model_new (G_LIST_MODEL (store),
+                                  compare,
+                                  NULL, NULL);
+
+  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_default_size (GTK_WINDOW (win), 400, 600);
+  g_signal_connect (win, "destroy", G_CALLBACK (gtk_main_quit), win);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+  gtk_container_add (GTK_CONTAINER (win), hbox);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
+  gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+  label = gtk_label_new ("GtkListView");
+  gtk_container_add (GTK_CONTAINER (vbox), label);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_widget_set_hexpand (sw, TRUE);
+  gtk_widget_set_vexpand (sw, TRUE);
+  gtk_container_add (GTK_CONTAINER (vbox), sw);
+
+  listview = gtk_list_view_new_with_factory (
+    gtk_functions_list_item_factory_new (setup_list_item,
+                                         NULL,
+                                         NULL, NULL));
+  gtk_container_add (GTK_CONTAINER (sw), listview);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
+  gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+  label = gtk_label_new ("GtkListBox");
+  gtk_container_add (GTK_CONTAINER (vbox), label);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_widget_set_hexpand (sw, TRUE);
+  gtk_widget_set_vexpand (sw, TRUE);
+  gtk_container_add (GTK_CONTAINER (vbox), sw);
+
+  listbox = gtk_list_box_new ();
+  gtk_container_add (GTK_CONTAINER (sw), listbox);
+
+  gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (sort));
+  gtk_list_box_bind_model (GTK_LIST_BOX (listbox),
+                           G_LIST_MODEL (sort),
+                           create_widget_for_listbox,
+                           NULL, NULL);
+
+  g_timeout_add (100, do_stuff, store);
+  g_timeout_add_seconds (3, revert_sort, sort);
+
+  gtk_widget_show (win);
+
+  gtk_main ();
+
+  g_object_unref (store);
+
+  return 0;
+}

tests/testlistview.c

@@ -0,0 +1,679 @@
+#include <gtk/gtk.h>
+
+#define FILE_INFO_TYPE_SELECTION (file_info_selection_get_type ())
+
+G_DECLARE_FINAL_TYPE (FileInfoSelection, file_info_selection, FILE_INFO, SELECTION, GObject)
+
+struct _FileInfoSelection
+{
+  GObject parent_instance;
+
+  GListModel *model;
+};
+
+struct _FileInfoSelectionClass
+{
+  GObjectClass parent_class;
+};
+
+static GType
+file_info_selection_get_item_type (GListModel *list)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (list);
+
+  return g_list_model_get_item_type (self->model);
+}
+
+static guint
+file_info_selection_get_n_items (GListModel *list)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (list);
+
+  return g_list_model_get_n_items (self->model);
+}
+
+static gpointer
+file_info_selection_get_item (GListModel *list,
+                               guint       position)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (list);
+
+  return g_list_model_get_item (self->model, position);
+}
+
+static void
+file_info_selection_list_model_init (GListModelInterface *iface)
+{
+  iface->get_item_type = file_info_selection_get_item_type;
+  iface->get_n_items = file_info_selection_get_n_items;
+  iface->get_item = file_info_selection_get_item;
+}
+
+static gboolean
+file_info_selection_is_selected (GtkSelectionModel *model,
+                                 guint              position)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (model);
+  gpointer item;
+
+  item = g_list_model_get_item (self->model, position);
+  if (item == NULL)
+    return FALSE;
+
+  if (GTK_IS_TREE_LIST_ROW (item))
+    {
+      GtkTreeListRow *row = item;
+      item = gtk_tree_list_row_get_item (row);
+      g_object_unref (row);
+    }
+
+  return g_file_info_get_attribute_boolean (item, "filechooser::selected");
+}
+
+static void
+file_info_selection_set_selected (FileInfoSelection *self,
+                                  guint              position,
+                                  gboolean           selected)
+{
+  gpointer item;
+
+  item = g_list_model_get_item (self->model, position);
+  if (item == NULL)
+    return;
+
+  if (GTK_IS_TREE_LIST_ROW (item))
+    {
+      GtkTreeListRow *row = item;
+      item = gtk_tree_list_row_get_item (row);
+      g_object_unref (row);
+    }
+
+  g_file_info_set_attribute_boolean (item, "filechooser::selected", selected);
+}
+
+static gboolean
+file_info_selection_select_item (GtkSelectionModel *model,
+                                 guint              position,
+                                 gboolean           exclusive)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (model);
+
+  if (exclusive)
+    {
+      guint i;
+
+      for (i = 0; i < g_list_model_get_n_items (self->model); i++)
+        file_info_selection_set_selected (self, i, i == position);
+
+      gtk_selection_model_selection_changed (model, 0, g_list_model_get_n_items (self->model));
+    }
+  else
+    {
+      file_info_selection_set_selected (self, position, TRUE);
+
+      gtk_selection_model_selection_changed (model, position, 1);
+    }
+
+  return TRUE;
+}
+
+static gboolean
+file_info_selection_unselect_item (GtkSelectionModel *model,
+                                   guint              position)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (model);
+
+  file_info_selection_set_selected (self, position, FALSE);
+
+  gtk_selection_model_selection_changed (model, position, 1);
+
+  return TRUE;
+}
+
+static gboolean
+file_info_selection_select_range (GtkSelectionModel *model,
+                                  guint              position,
+                                  guint              n_items,
+                                  gboolean           exclusive)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (model);
+  guint i;
+
+  if (exclusive)
+    for (i = 0; i < position; i++)
+      file_info_selection_set_selected (self, i, FALSE);
+
+  for (i = position; i < position + n_items; i++)
+    file_info_selection_set_selected (self, i, TRUE);
+
+  if (exclusive)
+    for (i = position + n_items; i < g_list_model_get_n_items (self->model); i++)
+      file_info_selection_set_selected (self, i, FALSE);
+
+  if (exclusive)
+    gtk_selection_model_selection_changed (model, 0, g_list_model_get_n_items (self->model));
+  else
+    gtk_selection_model_selection_changed (model, position, n_items);
+
+  return TRUE;
+}
+
+static gboolean
+file_info_selection_unselect_range (GtkSelectionModel *model,
+                                    guint              position,
+                                    guint              n_items)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (model);
+  guint i;
+
+  for (i = position; i < position + n_items; i++)
+    file_info_selection_set_selected (self, i, FALSE);
+
+  gtk_selection_model_selection_changed (model, position, n_items);
+
+  return TRUE;
+}
+
+static void
+file_info_selection_selection_model_init (GtkSelectionModelInterface *iface)
+{
+  iface->is_selected = file_info_selection_is_selected; 
+  iface->select_item = file_info_selection_select_item; 
+  iface->unselect_item = file_info_selection_unselect_item; 
+  iface->select_range = file_info_selection_select_range; 
+  iface->unselect_range = file_info_selection_unselect_range; 
+}
+
+G_DEFINE_TYPE_EXTENDED (FileInfoSelection, file_info_selection, G_TYPE_OBJECT, 0,
+                        G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL,
+                                               file_info_selection_list_model_init)
+                        G_IMPLEMENT_INTERFACE (GTK_TYPE_SELECTION_MODEL,
+                                               file_info_selection_selection_model_init))
+
+static void
+file_info_selection_items_changed_cb (GListModel        *model,
+                                      guint              position,
+                                      guint              removed,
+                                      guint              added,
+                                      FileInfoSelection *self)
+{
+  g_list_model_items_changed (G_LIST_MODEL (self), position, removed, added);
+}
+
+static void
+file_info_selection_clear_model (FileInfoSelection *self)
+{
+  if (self->model == NULL)
+    return;
+
+  g_signal_handlers_disconnect_by_func (self->model, 
+                                        file_info_selection_items_changed_cb,
+                                        self);
+  g_clear_object (&self->model);
+}
+
+static void
+file_info_selection_dispose (GObject *object)
+{
+  FileInfoSelection *self = FILE_INFO_SELECTION (object);
+
+  file_info_selection_clear_model (self);
+
+  G_OBJECT_CLASS (file_info_selection_parent_class)->dispose (object);
+}
+
+static void
+file_info_selection_class_init (FileInfoSelectionClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->dispose = file_info_selection_dispose;
+}
+
+static void
+file_info_selection_init (FileInfoSelection *self)
+{
+}
+
+static FileInfoSelection *
+file_info_selection_new (GListModel *model)
+{
+  FileInfoSelection *result;
+
+  result = g_object_new (FILE_INFO_TYPE_SELECTION, NULL);
+
+  result->model = g_object_ref (model);
+  g_signal_connect (result->model, "items-changed",
+                    G_CALLBACK (file_info_selection_items_changed_cb), result);
+
+  return result;
+}
+
+/*** ---------------------- ***/
+
+GSList *pending = NULL;
+guint active = 0;
+
+static void
+loading_cb (GtkDirectoryList *dir,
+            GParamSpec       *pspec,
+            gpointer          unused)
+{
+  if (gtk_directory_list_is_loading (dir))
+    {
+      active++;
+      /* HACK: ensure loading finishes and the dir doesn't get destroyed */
+      g_object_ref (dir);
+    }
+  else
+    {
+      active--;
+      g_object_unref (dir);
+
+      while (active < 20 && pending)
+        {
+          GtkDirectoryList *dir2 = pending->data;
+          pending = g_slist_remove (pending, dir2);
+          gtk_directory_list_set_file (dir2, g_object_get_data (G_OBJECT (dir2), "file"));
+          g_object_unref (dir2);
+        }
+    }
+}
+
+static GtkDirectoryList *
+create_directory_list (GFile *file)
+{
+  GtkDirectoryList *dir;
+
+  dir = gtk_directory_list_new (G_FILE_ATTRIBUTE_STANDARD_TYPE
+                                "," G_FILE_ATTRIBUTE_STANDARD_NAME
+                                "," G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
+                                NULL);
+  gtk_directory_list_set_io_priority (dir, G_PRIORITY_DEFAULT_IDLE);
+  g_signal_connect (dir, "notify::loading", G_CALLBACK (loading_cb), NULL);
+  g_assert (!gtk_directory_list_is_loading (dir));
+
+  if (active > 20)
+    {
+      g_object_set_data_full (G_OBJECT (dir), "file", g_object_ref (file), g_object_unref);
+      pending = g_slist_prepend (pending, g_object_ref (dir));
+    }
+  else
+    {
+      gtk_directory_list_set_file (dir, file);
+    }
+
+  return dir;
+}
+
+static int
+compare_files (gconstpointer first,
+               gconstpointer second,
+               gpointer unused)
+{
+  GFile *first_file, *second_file;
+  char *first_path, *second_path;
+  int result;
+#if 0
+  GFileType first_type, second_type;
+
+  /* This is a bit slow, because each g_file_query_file_type() does a stat() */
+  first_type = g_file_query_file_type (G_FILE (first), G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL);
+  second_type = g_file_query_file_type (G_FILE (second), G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL);
+
+  if (first_type == G_FILE_TYPE_DIRECTORY && second_type != G_FILE_TYPE_DIRECTORY)
+    return -1;
+  if (first_type != G_FILE_TYPE_DIRECTORY && second_type == G_FILE_TYPE_DIRECTORY)
+    return 1;
+#endif
+
+  first_file = G_FILE (g_file_info_get_attribute_object (G_FILE_INFO (first), "standard::file"));
+  second_file = G_FILE (g_file_info_get_attribute_object (G_FILE_INFO (second), "standard::file"));
+  first_path = g_file_get_path (first_file);
+  second_path = g_file_get_path (second_file);
+
+  result = strcasecmp (first_path, second_path);
+
+  g_free (first_path);
+  g_free (second_path);
+
+  return result;
+}
+
+static GListModel *
+create_list_model_for_directory (gpointer file)
+{
+  GtkSortListModel *sort;
+  GtkDirectoryList *dir;
+
+  if (g_file_query_file_type (file, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL) != G_FILE_TYPE_DIRECTORY)
+    return NULL;
+
+  dir = create_directory_list(file);
+  sort = gtk_sort_list_model_new (G_LIST_MODEL (dir),
+                                  compare_files,
+                                  NULL, NULL);
+  g_object_unref (dir);
+  return G_LIST_MODEL (sort);
+}
+
+typedef struct _RowData RowData;
+struct _RowData
+{
+  GtkWidget *expander;
+  GtkWidget *icon;
+  GtkWidget *name;
+  GCancellable *cancellable;
+
+  GtkTreeListRow *current_item;
+};
+
+static void row_data_notify_item (GtkListItem *item,
+                                  GParamSpec  *pspec,
+                                  RowData     *data);
+static void
+row_data_unbind (RowData *data)
+{
+  if (data->current_item == NULL)
+    return;
+
+  if (data->cancellable)
+    {
+      g_cancellable_cancel (data->cancellable);
+      g_clear_object (&data->cancellable);
+    }
+
+  g_clear_object (&data->current_item);
+}
+
+static void
+row_data_update_info (RowData   *data,
+                      GFileInfo *info)
+{
+  GIcon *icon;
+  const char *thumbnail_path;
+
+  thumbnail_path = g_file_info_get_attribute_byte_string (info, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
+  if (thumbnail_path)
+    {
+      /* XXX: not async */
+      GFile *thumbnail_file = g_file_new_for_path (thumbnail_path);
+      icon = g_file_icon_new (thumbnail_file);
+      g_object_unref (thumbnail_file);
+    }
+  else
+    {
+      icon = g_file_info_get_icon (info);
+    }
+
+  gtk_widget_set_visible (data->icon, icon != NULL);
+  gtk_image_set_from_gicon (GTK_IMAGE (data->icon), icon);
+}
+
+static void
+copy_attribute (GFileInfo   *to,
+                GFileInfo   *from,
+                const gchar *attribute)
+{
+  GFileAttributeType type;
+  gpointer value;
+
+  if (g_file_info_get_attribute_data (from, attribute, &type, &value, NULL))
+    g_file_info_set_attribute (to, attribute, type, value);
+}
+
+static void
+row_data_got_thumbnail_info_cb (GObject      *source,
+                                GAsyncResult *res,
+                                gpointer      _data)
+{
+  RowData *data = _data; /* invalid if operation was cancelled */
+  GFile *file = G_FILE (source);
+  GFileInfo *queried, *info;
+
+  queried = g_file_query_info_finish (file, res, NULL);
+  if (queried == NULL)
+    return;
+
+  /* now we know row is valid */
+
+  info = gtk_tree_list_row_get_item (data->current_item);
+
+  copy_attribute (info, queried, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
+  copy_attribute (info, queried, G_FILE_ATTRIBUTE_THUMBNAILING_FAILED);
+  copy_attribute (info, queried, G_FILE_ATTRIBUTE_STANDARD_ICON);
+
+  g_object_unref (queried);
+
+  row_data_update_info (data, info);
+  
+  g_clear_object (&data->cancellable);
+}
+
+static void
+row_data_bind (RowData        *data,
+               GtkTreeListRow *item)
+{
+  GFileInfo *info;
+
+  row_data_unbind (data);
+
+  if (item == NULL)
+    return;
+
+  data->current_item = g_object_ref (item);
+
+  gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (data->expander), item);
+
+  info = gtk_tree_list_row_get_item (item);
+
+  if (!g_file_info_has_attribute (info, "filechooser::queried"))
+    {
+      data->cancellable = g_cancellable_new ();
+      g_file_info_set_attribute_boolean (info, "filechooser::queried", TRUE);
+      g_file_query_info_async (G_FILE (g_file_info_get_attribute_object (info, "standard::file")),
+                               G_FILE_ATTRIBUTE_THUMBNAIL_PATH ","
+                               G_FILE_ATTRIBUTE_THUMBNAILING_FAILED ","
+                               G_FILE_ATTRIBUTE_STANDARD_ICON,
+                               G_FILE_QUERY_INFO_NONE,
+                               G_PRIORITY_DEFAULT,
+                               data->cancellable,
+                               row_data_got_thumbnail_info_cb,
+                               data);
+    }
+
+  row_data_update_info (data, info);
+
+  gtk_label_set_label (GTK_LABEL (data->name), g_file_info_get_display_name (info));
+
+  g_object_unref (info);
+}
+
+static void
+row_data_notify_item (GtkListItem *item,
+                      GParamSpec  *pspec,
+                      RowData     *data)
+{
+  row_data_bind (data, gtk_list_item_get_item (item));
+}
+
+static void
+row_data_free (gpointer _data)
+{
+  RowData *data = _data;
+
+  row_data_unbind (data);
+
+  g_slice_free (RowData, data);
+}
+
+static void
+setup_widget (GtkListItem *list_item,
+              gpointer     unused)
+{
+  GtkWidget *box, *child;
+  RowData *data;
+
+  data = g_slice_new0 (RowData);
+  g_signal_connect (list_item, "notify::item", G_CALLBACK (row_data_notify_item), data);
+  g_object_set_data_full (G_OBJECT (list_item), "row-data", data, row_data_free);
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+  gtk_container_add (GTK_CONTAINER (list_item), box);
+
+  child = gtk_label_new (NULL);
+  gtk_label_set_width_chars (GTK_LABEL (child), 5);
+  gtk_label_set_xalign (GTK_LABEL (child), 1.0);
+  g_object_bind_property (list_item, "position", child, "label", G_BINDING_SYNC_CREATE);
+  gtk_container_add (GTK_CONTAINER (box), child);
+
+  data->expander = gtk_tree_expander_new ();
+  gtk_container_add (GTK_CONTAINER (box), data->expander);
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+  gtk_tree_expander_set_child (GTK_TREE_EXPANDER (data->expander), box);
+
+  data->icon = gtk_image_new ();
+  gtk_container_add (GTK_CONTAINER (box), data->icon);
+
+  data->name = gtk_label_new (NULL);
+  gtk_container_add (GTK_CONTAINER (box), data->name);
+}
+
+static GListModel *
+create_list_model_for_file_info (gpointer file_info,
+                                 gpointer unused)
+{
+  GFile *file = G_FILE (g_file_info_get_attribute_object (file_info, "standard::file"));
+
+  if (file == NULL)
+    return NULL;
+
+  return create_list_model_for_directory (file);
+}
+
+static gboolean
+update_statusbar (GtkStatusbar *statusbar)
+{
+  GListModel *model = g_object_get_data (G_OBJECT (statusbar), "model");
+  GString *string = g_string_new (NULL);
+  guint n;
+  gboolean result = G_SOURCE_REMOVE;
+
+  gtk_statusbar_remove_all (statusbar, 0);
+
+  n = g_list_model_get_n_items (model);
+  g_string_append_printf (string, "%u", n);
+  if (GTK_IS_FILTER_LIST_MODEL (model))
+    {
+      guint n_unfiltered = g_list_model_get_n_items (gtk_filter_list_model_get_model (GTK_FILTER_LIST_MODEL (model)));
+      if (n != n_unfiltered)
+        g_string_append_printf (string, "/%u", n_unfiltered);
+    }
+  g_string_append (string, " items");
+
+  if (pending || active)
+    {
+      g_string_append_printf (string, " (%u directories remaining)", active + g_slist_length (pending));
+      result = G_SOURCE_CONTINUE;
+    }
+      result = G_SOURCE_CONTINUE;
+
+  gtk_statusbar_push (statusbar, 0, string->str);
+  g_free (string->str);
+
+  return result;
+}
+
+static gboolean
+match_file (gpointer item, gpointer data)
+{
+  GtkWidget *search_entry = data;
+  GFileInfo *info = gtk_tree_list_row_get_item (item);
+  GFile *file = G_FILE (g_file_info_get_attribute_object (info, "standard::file"));
+  char *path;
+  gboolean result;
+  
+  path = g_file_get_path (file);
+
+  result = strstr (path, gtk_editable_get_text (GTK_EDITABLE (search_entry))) != NULL;
+
+  g_object_unref (info);
+  g_free (path);
+
+  return result;
+}
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *win, *vbox, *sw, *listview, *search_entry, *statusbar;
+  GListModel *dirmodel;
+  GtkTreeListModel *tree;
+  GtkFilterListModel *filter;
+  FileInfoSelection *selectionmodel;
+  GFile *root;
+
+  gtk_init ();
+
+  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_default_size (GTK_WINDOW (win), 400, 600);
+  g_signal_connect (win, "destroy", G_CALLBACK (gtk_main_quit), win);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_container_add (GTK_CONTAINER (win), vbox);
+
+  search_entry = gtk_search_entry_new ();
+  gtk_container_add (GTK_CONTAINER (vbox), search_entry);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_widget_set_vexpand (sw, TRUE);
+  gtk_search_entry_set_key_capture_widget (GTK_SEARCH_ENTRY (search_entry), sw);
+  gtk_container_add (GTK_CONTAINER (vbox), sw);
+
+  listview = gtk_list_view_new_with_factory (
+    gtk_functions_list_item_factory_new (setup_widget,
+                                         NULL,
+                                         NULL, NULL));
+  gtk_container_add (GTK_CONTAINER (sw), listview);
+
+  if (argc > 1)
+    root = g_file_new_for_commandline_arg (argv[1]);
+  else
+    root = g_file_new_for_path (g_get_current_dir ());
+  dirmodel = create_list_model_for_directory (root);
+  tree = gtk_tree_list_model_new (FALSE,
+                                  dirmodel,
+                                  TRUE,
+                                  create_list_model_for_file_info,
+                                  NULL, NULL);
+  g_object_unref (dirmodel);
+  g_object_unref (root);
+
+  filter = gtk_filter_list_model_new (G_LIST_MODEL (tree),
+                                      match_file,
+                                      search_entry,
+                                      NULL);
+  g_signal_connect_swapped (search_entry, "search-changed", G_CALLBACK (gtk_filter_list_model_refilter), filter);
+
+  selectionmodel = file_info_selection_new (G_LIST_MODEL (filter));
+  g_object_unref (filter);
+
+  gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (selectionmodel));
+
+  statusbar = gtk_statusbar_new ();
+  gtk_widget_add_tick_callback (statusbar, (GtkTickCallback) update_statusbar, NULL, NULL);
+  g_object_set_data (G_OBJECT (statusbar), "model", filter);
+  g_signal_connect_swapped (filter, "items-changed", G_CALLBACK (update_statusbar), statusbar);
+  update_statusbar (GTK_STATUSBAR (statusbar));
+  gtk_container_add (GTK_CONTAINER (vbox), statusbar);
+
+  g_object_unref (tree);
+  g_object_unref (selectionmodel);
+
+  gtk_widget_show (win);
+
+  gtk_main ();
+
+  return 0;
+}