[gnome-software: 7/18] gs-app: Add a GsApp:license property

[Philip Withnall <pwithnall src gnome org>]

commit b267af6151df2422a8ead20e394b424feedecf42
Author: Philip Withnall <pwithnall endlessos org>
Date:   Thu May 27 18:48:10 2021 +0100

    gs-app: Add a GsApp:license property
    
    This exposes the existing license functionality, but adds support
    for change notification, which parts of the UI could attach signals to.
    
    The property is read-only, as the setter function is non-trivial.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 lib/gs-app.c | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)
---
diff --git a/lib/gs-app.c b/lib/gs-app.c
index 9613f8947..f06a792cf 100644
--- a/lib/gs-app.c
+++ b/lib/gs-app.c
@@ -152,9 +152,10 @@ typedef enum {
        PROP_IS_UPDATE_DOWNLOADED,
        PROP_URL_MISSING,
        PROP_CONTENT_RATING,
+       PROP_LICENSE,
 } GsAppProperty;
 
-static GParamSpec *obj_props[PROP_CONTENT_RATING + 1] = { NULL, };
+static GParamSpec *obj_props[PROP_LICENSE + 1] = { NULL, };
 
 G_DEFINE_TYPE_WITH_PRIVATE (GsApp, gs_app, G_TYPE_OBJECT)
 
@@ -2677,7 +2678,8 @@ gs_app_set_license (GsApp *app, GsAppQuality quality, const gchar *license)
 
        priv->license_is_free = as_license_is_free_license (license);
 
-       _g_set_str (&priv->license, license);
+       if (_g_set_str (&priv->license, license))
+               gs_app_queue_notify (app, obj_props[PROP_LICENSE]);
 }
 
 /**
@@ -4715,6 +4717,9 @@ gs_app_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *
        case PROP_CONTENT_RATING:
                g_value_set_object (value, priv->content_rating);
                break;
+       case PROP_LICENSE:
+               g_value_set_string (value, priv->license);
+               break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -4792,6 +4797,9 @@ gs_app_set_property (GObject *object, guint prop_id, const GValue *value, GParam
        case PROP_CONTENT_RATING:
                gs_app_set_content_rating (app, g_value_get_object (value));
                break;
+       case PROP_LICENSE:
+               /* Read-only */
+               g_assert_not_reached ();
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -5041,6 +5049,22 @@ gs_app_class_init (GsAppClass *klass)
                                     as_content_rating_get_type (),
                                     G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+       /**
+        * GsApp:license: (nullable)
+        *
+        * The license for the app, which is typically its source code license.
+        *
+        * Use gs_app_set_license() to set this.
+        *
+        * This is %NULL if no licensing information is available.
+        *
+        * Since: 41
+        */
+       obj_props[PROP_LICENSE] =
+               g_param_spec_string ("license", NULL, NULL,
+                                    NULL,
+                                    G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
        g_object_class_install_properties (object_class, G_N_ELEMENTS (obj_props), obj_props);
 }