[gnome-software: 6/18] gs-app: Add a GsApp:content-rating property

[Philip Withnall <pwithnall src gnome org>]

commit 987c21ae96c29a8f68a4e1f212fe34f1ea5a06d4
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu May 27 18:44:46 2021 +0100

    gs-app: Add a GsApp:content-rating property
    
    This exposes the existing content rating functionality, but adds support
    for change notification, which parts of the UI could attach signals to.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 lib/gs-app.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/lib/gs-app.c b/lib/gs-app.c
index 61d400d68..9613f8947 100644
--- a/lib/gs-app.c
+++ b/lib/gs-app.c
@@ -151,9 +151,10 @@ typedef enum {
        PROP_KEY_COLORS,
        PROP_IS_UPDATE_DOWNLOADED,
        PROP_URL_MISSING,
+       PROP_CONTENT_RATING,
 } GsAppProperty;
 
-static GParamSpec *obj_props[PROP_URL_MISSING + 1] = { NULL, };
+static GParamSpec *obj_props[PROP_CONTENT_RATING + 1] = { NULL, };
 
 G_DEFINE_TYPE_WITH_PRIVATE (GsApp, gs_app, G_TYPE_OBJECT)
 
@@ -2147,7 +2148,8 @@ gs_app_set_content_rating (GsApp *app, AsContentRating *content_rating)
        g_autoptr(GMutexLocker) locker = NULL;
        g_return_if_fail (GS_IS_APP (app));
        locker = g_mutex_locker_new (&priv->mutex);
-       g_set_object (&priv->content_rating, content_rating);
+       if (g_set_object (&priv->content_rating, content_rating))
+               gs_app_queue_notify (app, obj_props[PROP_CONTENT_RATING]);
 }
 
 /**
@@ -4710,6 +4712,9 @@ gs_app_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *
        case PROP_URL_MISSING:
                g_value_set_string (value, priv->url_missing);
                break;
+       case PROP_CONTENT_RATING:
+               g_value_set_object (value, priv->content_rating);
+               break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -4784,6 +4789,9 @@ gs_app_set_property (GObject *object, guint prop_id, const GValue *value, GParam
        case PROP_URL_MISSING:
                gs_app_set_url_missing (app, g_value_get_string (value));
                break;
+       case PROP_CONTENT_RATING:
+               gs_app_set_content_rating (app, g_value_get_object (value));
+               break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -5016,6 +5024,23 @@ gs_app_class_init (GsAppClass *klass)
                                        NULL,
                                        G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
 
+       /**
+        * GsApp:content-rating: (nullable)
+        *
+        * The content rating for the app, which gives information on how
+        * suitable it is for different age ranges of user.
+        *
+        * This is %NULL if no content rating information is available.
+        *
+        * Since: 41
+        */
+       obj_props[PROP_CONTENT_RATING] =
+               g_param_spec_object ("content-rating", NULL, NULL,
+                                    /* FIXME: Use the get_type() function directly here to work
+                                     * around https://github.com/ximion/appstream/pull/318 */
+                                    as_content_rating_get_type (),
+                                    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);
 }