[gnome-games] collections-page: Add get_current_collection()

[Alexander Mikhaylenko <alexm src gnome org>]

commit 0ac7a4f1b02a6a7a1b4f5722d22ddc088a1e596c
Author: Neville <nevilleantony98 gmail com>
Date:   Wed Jul 29 16:44:25 2020 +0530

    collections-page: Add get_current_collection()
    
    This will be used to access the currently shown collection, in the main
    collection view. Returns null if the collection subpage is not open.

 src/ui/collections-page.vala | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/src/ui/collections-page.vala b/src/ui/collections-page.vala
index 822a9f126..4c5b84490 100644
--- a/src/ui/collections-page.vala
+++ b/src/ui/collections-page.vala
@@ -16,6 +16,8 @@ private class Games.CollectionsPage : Gtk.Bin {
        [GtkChild]
        private CollectionEmpty collection_empty_subpage;
 
+       private Collection current_collection;
+
        private bool _is_collection_empty;
        public bool is_collection_empty {
                get { return _is_collection_empty; }
@@ -105,6 +107,13 @@ private class Games.CollectionsPage : Gtk.Bin {
                return on_subpage_back_clicked ();
        }
 
+       public Collection? get_current_collection () {
+               if (!is_subpage_open)
+                       return null;
+
+               return current_collection;
+       }
+
        [GtkCallback]
        private bool on_subpage_back_clicked () {
                if (!is_subpage_open)
@@ -117,6 +126,7 @@ private class Games.CollectionsPage : Gtk.Bin {
 
        [GtkCallback]
        private void on_collection_activated (Collection collection) {
+               current_collection = collection;
                collection_title = collection.get_title ();
                collections_deck.visible_child = collections_subpage_stack;