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testlistview: Load icons async

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Speeds up loading by 4x, because out of view icons aren't loaded
anymore.
This commit is contained in:
Benjamin Otte
2019-10-03 06:50:51 +02:00
parent 84e1a21e05
commit 233db07715
1 changed files with 87 additions and 6 deletions
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93
tests/testlistview.c
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@@ -37,7 +37,6 @@ create_directory_list (GFile *file)
GtkDirectoryList *dir;
dir = gtk_directory_list_new (G_FILE_ATTRIBUTE_STANDARD_TYPE
"," G_FILE_ATTRIBUTE_STANDARD_ICON
"," G_FILE_ATTRIBUTE_STANDARD_NAME
"," G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
NULL);
@@ -94,6 +93,7 @@ struct _RowData
GtkWidget *expander;
GtkWidget *icon;
GtkWidget *name;
GCancellable *cancellable;
GtkTreeListRow *current_item;
GBinding *expander_binding;
@@ -108,17 +108,86 @@ 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_binding_unbind (data->expander_binding);
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;
GIcon *icon;
guint depth;
row_data_unbind (data);
@@ -136,10 +205,22 @@ row_data_bind (RowData *data,
info = gtk_tree_list_row_get_item (item);
icon = g_file_info_get_icon (info);
gtk_widget_set_visible (data->icon, icon != NULL);
if (icon)
gtk_image_set_from_gicon (GTK_IMAGE (data->icon), icon);
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));