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[gtk/wip/otte/listview: 8/8] tests: Add testcolumnview

commit eab942f254aaa84943a370a04a8fa995e46df171
Author: Benjamin Otte <otte redhat com>
Date:   Mon Oct 28 20:50:25 2019 +0100

    tests: Add testcolumnview

 tests/testcolumnview.c | 495 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 495 insertions(+)
---
diff --git a/tests/testcolumnview.c b/tests/testcolumnview.c
new file mode 100644
index 0000000000..52d0de3a60
--- /dev/null
+++ b/tests/testcolumnview.c
@@ -0,0 +1,495 @@
+#include <gtk/gtk.h>
+
+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
+                                "," G_FILE_ATTRIBUTE_STANDARD_SIZE,
+                                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);
+}
+
+#if 0
+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_label_set_max_width_chars (GTK_LABEL (data->name), 25);
+  gtk_label_set_ellipsize (GTK_LABEL (data->name), PANGO_ELLIPSIZE_END);
+  gtk_container_add (GTK_CONTAINER (box), data->name);
+}
+#endif
+
+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;
+}
+
+const char *ui_file =
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<interface>\n"
+"  <object class='GtkColumnView' id='view'>\n"
+"    <child>\n"
+"      <object class='GtkColumnViewColumn'>\n"
+"        <property name='title'>Name</property>\n"
+"        <property name='factory'>\n"
+"          <object class='GtkBuilderListItemFactory'>\n"
+"            <property name='bytes'><![CDATA[\n"
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<interface>\n"
+"  <template class='GtkListItem'>\n"
+"    <property name='child'>\n"
+"      <object class='GtkTreeExpander' id='expander'>\n"
+"        <binding name='list-row'>GtkListItem.item</binding>\n"
+"        <property name='child'>\n"
+"          <object class='GtkBox'>\n"
+"            <child>\n"
+"              <object class='GtkImage'>\n"
+"                <binding name='gicon'>file-info(expander.item:GFileInfo, 'standard::icon', 
object):GIcon</binding>\n"
+"              </object>\n"
+"            </child>\n"
+"            <child>\n"
+"              <object class='GtkLabel'>\n"
+"                <property name='halign'>start</property>\n"
+"                <property name='label'>start</property>\n"
+"                <binding name='label'>file-info(expander.item:GFileInfo, 'standard::display-name', 
string)</binding>\n"
+"              </object>\n"
+"            </child>\n"
+"          </object>\n"
+"        </property>\n"
+"      </object>\n"
+"    </property>\n"
+"  </template>\n"
+"</interface>\n"
+"            ]]></property>\n"
+"          </object>\n"
+"        </property>\n"
+"      </object>\n"
+"    </child>\n"
+"    <child>\n"
+"      <object class='GtkColumnViewColumn'>\n"
+"        <property name='title'>Size</property>\n"
+"        <property name='factory'>\n"
+"          <object class='GtkBuilderListItemFactory'>\n"
+"            <property name='bytes'><![CDATA[\n"
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<interface>\n"
+"  <template class='GtkListItem'>\n"
+"    <property name='child'>\n"
+"      <object class='GtkLabel'>\n"
+"        <property name='halign'>start</property>\n"
+"        <binding name='label'>file-info(GtkListItem.item:GtkTreeListRow.item:GFileInfo, 'standard::size', 
uint64)</binding>\n"
+"      </object>\n"
+"    </property>\n"
+"  </template>\n"
+"</interface>\n"
+"            ]]></property>\n"
+"          </object>\n"
+"        </property>\n"
+"      </object>\n"
+"    </child>\n"
+"  </object>\n"
+"</interface>\n";
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *win, *vbox, *sw, *view, *search_entry, *statusbar;
+  GListModel *dirmodel;
+  GtkTreeListModel *tree;
+  GtkFilterListModel *filter;
+  GFile *root;
+  GtkBuilder *builder;
+
+  gtk_init ();
+
+  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_default_size (GTK_WINDOW (win), 800, 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);
+
+  builder = gtk_builder_new_from_string (ui_file, -1);
+  view = GTK_WIDGET (gtk_builder_get_object (builder, "view"));
+  gtk_container_add (GTK_CONTAINER (sw), view);
+  g_object_unref (builder);
+
+  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);
+
+  gtk_column_view_set_model (GTK_COLUMN_VIEW (view), G_LIST_MODEL (filter));
+
+  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 (filter);
+
+  gtk_widget_show (win);
+
+  gtk_main ();
+
+  return 0;
+}
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