[gnome-software: 2/13] gs-category-tile: Add GObject properties

[Philip Withnall <pwithnall src gnome org>]

commit a091f37b1d1651d92d9b8f9cec8e71277411ef34
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu Jul 29 14:48:07 2021 +0100

    gs-category-tile: Add GObject properties
    
    This will allow the category to be bound, which might allow the UI code
    to be simpler in future.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 src/gs-category-tile.c | 69 ++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 61 insertions(+), 8 deletions(-)
---
diff --git a/src/gs-category-tile.c b/src/gs-category-tile.c
index 17fab7355..9a0e717f5 100644
--- a/src/gs-category-tile.c
+++ b/src/gs-category-tile.c
@@ -22,6 +22,42 @@ struct _GsCategoryTile
 
 G_DEFINE_TYPE (GsCategoryTile, gs_category_tile, GTK_TYPE_BUTTON)
 
+typedef enum {
+       PROP_CATEGORY = 1,
+} GsCategoryTileProperty;
+
+static GParamSpec *obj_props[PROP_CATEGORY + 1] = { NULL, };
+
+static void
+gs_category_tile_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+       GsCategoryTile *self = GS_CATEGORY_TILE (object);
+
+       switch ((GsCategoryTileProperty) prop_id) {
+       case PROP_CATEGORY:
+               g_value_set_object (value, gs_category_tile_get_category (self));
+               break;
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+               break;
+       }
+}
+
+static void
+gs_category_tile_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+       GsCategoryTile *self = GS_CATEGORY_TILE (object);
+
+       switch ((GsCategoryTileProperty) prop_id) {
+       case PROP_CATEGORY:
+               gs_category_tile_set_category (self, g_value_get_object (value));
+               break;
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+               break;
+       }
+}
+
 GsCategory *
 gs_category_tile_get_category (GsCategoryTile *tile)
 {
@@ -47,8 +83,10 @@ gs_category_tile_set_category (GsCategoryTile *tile, GsCategory *cat)
        g_return_if_fail (GS_IS_CATEGORY_TILE (tile));
        g_return_if_fail (GS_IS_CATEGORY (cat));
 
-       g_set_object (&tile->cat, cat);
-       gs_category_tile_refresh (tile);
+       if (g_set_object (&tile->cat, cat)) {
+               gs_category_tile_refresh (tile);
+               g_object_notify_by_pspec (G_OBJECT (tile), obj_props[PROP_CATEGORY]);
+       }
 }
 
 static void
@@ -74,8 +112,26 @@ gs_category_tile_class_init (GsCategoryTileClass *klass)
        GObjectClass *object_class = G_OBJECT_CLASS (klass);
        GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
+       object_class->get_property = gs_category_tile_get_property;
+       object_class->set_property = gs_category_tile_set_property;
        object_class->dispose = gs_category_tile_dispose;
 
+       /**
+        * GsCategoryTile:category: (not nullable)
+        *
+        * The category to display in this tile.
+        *
+        * This must not be %NULL.
+        *
+        * Since: 41
+        */
+       obj_props[PROP_CATEGORY] =
+               g_param_spec_object ("category", NULL, NULL,
+                                    GS_TYPE_CATEGORY,
+                                    G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+       g_object_class_install_properties (object_class, G_N_ELEMENTS (obj_props), obj_props);
+
        gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/Software/gs-category-tile.ui");
 
        gtk_widget_class_bind_template_child (widget_class, GsCategoryTile, label);
@@ -85,10 +141,7 @@ gs_category_tile_class_init (GsCategoryTileClass *klass)
 GtkWidget *
 gs_category_tile_new (GsCategory *cat)
 {
-       GsCategoryTile *tile;
-
-       tile = g_object_new (GS_TYPE_CATEGORY_TILE, NULL);
-       gs_category_tile_set_category (tile, cat);
-
-       return GTK_WIDGET (tile);
+       return g_object_new (GS_TYPE_CATEGORY_TILE,
+                            "category", cat,
+                            NULL);
 }