[gtk/wip/otte/widgetfactory-dnd: 5/6] droptarget: Make formats construct-only writable




commit 5a9f320180846e6a837af6f57cf5d3de9deea826
Author: Benjamin Otte <otte redhat com>
Date:   Mon Jul 26 02:34:18 2021 +0200

    droptarget: Make formats construct-only writable
    
    This way, it can be set in GtkBuilder.
    
    Also make sure to only ever look at the GTypes set in the formats, as
    GtkDropTarget cannot deal with mime types.

 gtk/gtkdroptarget.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkdroptarget.c b/gtk/gtkdroptarget.c
index da1bbe6640..5b91bbb103 100644
--- a/gtk/gtkdroptarget.c
+++ b/gtk/gtkdroptarget.c
@@ -344,7 +344,7 @@ gtk_drop_target_accept (GtkDropTarget *self,
   if (self->formats == NULL)
     return TRUE;
 
-  return gdk_content_formats_match (self->formats, gdk_drop_get_formats (drop));
+  return gdk_content_formats_match_gtype (self->formats, gdk_drop_get_formats (drop)) != G_TYPE_INVALID;
 }
 
 static GdkDragAction
@@ -544,6 +544,12 @@ gtk_drop_target_set_property (GObject      *object,
       gtk_drop_target_set_actions (self, g_value_get_flags (value));
       break;
 
+    case PROP_FORMATS:
+      self->formats = g_value_dup_boxed (value);
+      if (self->formats == NULL)
+        self->formats = gdk_content_formats_new (NULL, 0);
+      break;
+
     case PROP_PRELOAD:
       gtk_drop_target_set_preload (self, g_value_get_boolean (value));
       break;
@@ -661,7 +667,7 @@ gtk_drop_target_class_init (GtkDropTargetClass *class)
                            P_("Formats"),
                            P_("The supported formats"),
                            GDK_TYPE_CONTENT_FORMATS,
-                           GTK_PARAM_READABLE);
+                           GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
 
   /**
    * GtkDropTarget:preload: (attributes org.gtk.Property.get=gtk_drop_target_get_preload 
org.gtk.Property.set=gtk_drop_target_set_preload)
@@ -843,7 +849,6 @@ gtk_drop_target_class_init (GtkDropTargetClass *class)
 static void
 gtk_drop_target_init (GtkDropTarget *self)
 {
-  self->formats = gdk_content_formats_new (NULL, 0);
 }
 
 /**
@@ -864,13 +869,19 @@ gtk_drop_target_new (GType         type,
                      GdkDragAction actions)
 {
   GtkDropTarget *result;
+  GdkContentFormats *formats;
+
+  if (type != G_TYPE_INVALID)
+    formats = gdk_content_formats_new_for_gtype (type);
+  else
+    formats = NULL;
 
   result = g_object_new (GTK_TYPE_DROP_TARGET,
+                         "formats", formats,
                          "actions", actions,
                          NULL);
 
-  if (type != G_TYPE_INVALID)
-    gtk_drop_target_set_gtypes (result, &type, 1);
+  g_clear_pointer (&formats, gdk_content_formats_unref);
 
   return result;
 }


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