diff options
| -rw-r--r-- | shell/ev-sidebar-thumbnails.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c index 22054251..20243e5b 100644 --- a/shell/ev-sidebar-thumbnails.c +++ b/shell/ev-sidebar-thumbnails.c @@ -476,6 +476,14 @@ update_visible_range (EvSidebarThumbnails *sidebar_thumbnails, { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; int old_start_page, old_end_page; + int n_pages_in_visible_range; + + /* Preload before and after current visible scrolling range, the same amount of + * thumbs in it, to help prevent thumbnail creation happening in the user's sight. + * https://bugzilla.gnome.org/show_bug.cgi?id=342110#c15 */ + n_pages_in_visible_range = (end_page - start_page) + 1; + start_page = MAX (0, start_page - n_pages_in_visible_range); + end_page = MIN (priv->n_pages - 1, end_page + n_pages_in_visible_range); old_start_page = priv->start_page; old_end_page = priv->end_page; |