[gtk+] inspector: Support editing interned string properties

[Matthias Clasen <matthiasc src gnome org>]

commit 6852a1eef97867a1cd9be285f8fed18eecc9a3aa
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 26 23:38:05 2015 -0400

    inspector: Support editing interned string properties
    
    Sadly, interned string properties cannot be handled generically
    at all - GObject insists on inserting a strcpy in any attempt
    to set a string property with generic api, destroying the
    internedness of the string.
    
    Therefore, we have to special-case GtkCssNode in the property
    editor code :-(

 gtk/inspector/prop-editor.c |   21 +++++++++++++++++++--
 1 files changed, 19 insertions(+), 2 deletions(-)
---
diff --git a/gtk/inspector/prop-editor.c b/gtk/inspector/prop-editor.c
index c6a70a9..b014dba 100644
--- a/gtk/inspector/prop-editor.c
+++ b/gtk/inspector/prop-editor.c
@@ -42,6 +42,7 @@
 #include "gtksettingsprivate.h"
 #include "gtktogglebutton.h"
 #include "gtkwidgetprivate.h"
+#include "gtkcssnodeprivate.h"
 
 struct _GtkInspectorPropEditorPrivate
 {
@@ -394,6 +395,18 @@ string_modified (GtkEntry *entry, ObjectProperty *p)
 }
 
 static void
+intern_string_modified (GtkEntry *entry, ObjectProperty *p)
+{
+  const gchar *s;
+
+  s = g_intern_string (gtk_entry_get_text (entry));
+  if (g_str_equal (p->spec->name, "id"))
+    gtk_css_node_set_id (GTK_CSS_NODE (p->obj), s);
+  else if (g_str_equal (p->spec->name, "name"))
+    gtk_css_node_set_name (GTK_CSS_NODE (p->obj), s);
+}
+
+static void
 string_changed (GObject *object, GParamSpec *pspec, gpointer data)
 {
   GtkEntry *entry = GTK_ENTRY (data);
@@ -922,8 +935,12 @@ property_editor (GObject                *object,
                                  G_CALLBACK (string_changed),
                                  prop_edit, G_OBJECT (prop_edit));
 
-      connect_controller (G_OBJECT (prop_edit), "changed",
-                          object, spec, G_CALLBACK (string_modified));
+      if (GTK_IS_CSS_NODE (object))
+        connect_controller (G_OBJECT (prop_edit), "changed",
+                            object, spec, G_CALLBACK (intern_string_modified));
+      else
+        connect_controller (G_OBJECT (prop_edit), "changed",
+                            object, spec, G_CALLBACK (string_modified));
     }
   else if (type == G_TYPE_PARAM_BOOLEAN)
     {