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Merge branch 'handle-sections-changed' into 'main'

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wip: list widgets: handle sections-changed

See merge request GNOME/gtk!6011
This commit is contained in:
Matthias Clasen 2023-05-27 17:55:00 +00:00
commit bcae6271df
1 changed files with 69 additions and 0 deletions
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69
gtk/gtklistitemmanager.c
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@ -1565,6 +1565,67 @@ gtk_list_item_manager_model_items_changed_cb (GListModel *model,
gtk_widget_queue_resize (self->widget);
}
static void
gtk_list_item_manager_model_sections_changed_cb (GListModel *model,
guint position,
guint n_items,
GtkListItemManager *self)
{
GtkListItemChange change;
GtkListTile *tile, *header;
guint offset;
if (!gtk_list_item_manager_has_sections (self))
return;
gtk_list_item_change_init (&change);
tile = gtk_list_item_manager_get_nth (self, position, &offset);
header = gtk_list_tile_get_header (self, tile);
gtk_list_item_change_clear_header (&change, &header->widget);
gtk_list_tile_set_type (header, GTK_LIST_TILE_UNMATCHED_HEADER);
n_items -= MIN (n_items, position - offset);
while (n_items > 0)
{
switch (tile->type)
{
case GTK_LIST_TILE_HEADER:
case GTK_LIST_TILE_UNMATCHED_HEADER:
gtk_list_item_change_clear_header (&change, &tile->widget);
gtk_list_tile_set_type (tile, GTK_LIST_TILE_REMOVED);
break;
case GTK_LIST_TILE_FOOTER:
case GTK_LIST_TILE_UNMATCHED_FOOTER:
gtk_list_tile_set_type (tile, GTK_LIST_TILE_REMOVED);
break;
case GTK_LIST_TILE_ITEM:
n_items -= MIN (n_items, tile->n_items);
break;
case GTK_LIST_TILE_REMOVED:
default:
g_assert_not_reached ();
break;
}
tile = gtk_list_tile_get_next_skip (tile);
}
if (!gtk_list_tile_is_footer (tile))
tile = gtk_list_tile_get_footer (self, tile);
gtk_list_tile_set_type (tile, GTK_LIST_TILE_UNMATCHED_FOOTER);
gtk_list_item_manager_ensure_items (self, &change, G_MAXUINT, 0);
gtk_list_item_change_finish (&change);
gtk_widget_queue_resize (GTK_WIDGET (self->widget));
}
static void
gtk_list_item_manager_model_selection_changed_cb (GListModel *model,
guint position,
@ -1624,6 +1685,9 @@ gtk_list_item_manager_clear_model (GtkListItemManager *self)
g_signal_handlers_disconnect_by_func (self->model,
gtk_list_item_manager_model_items_changed_cb,
self);
g_signal_handlers_disconnect_by_func (self->model,
gtk_list_item_manager_model_sections_changed_cb,
self);
g_clear_object (&self->model);
gtk_list_item_manager_gc_tiles (self);
@ -1682,6 +1746,11 @@ gtk_list_item_manager_set_model (GtkListItemManager *self,
"selection-changed",
G_CALLBACK (gtk_list_item_manager_model_selection_changed_cb),
self);
if (GTK_IS_SECTION_MODEL (model))
g_signal_connect (model,
"sections-changed",
G_CALLBACK (gtk_list_item_manager_model_sections_changed_cb),
self);
gtk_list_item_change_init (&change);
gtk_list_item_manager_add_items (self, &change, 0, g_list_model_get_n_items (G_LIST_MODEL (model)));