Hi all.
I've been trying to fix a bug
(https://bugzilla.redhat.com/show_bug.cgi?id=1219982) with
transmission-remote-gtk.
Was able to narrow it down: when there is a GtkLabel (with markup
enabled) and you open the context menu on a hyperlink to copy it, but
before you click "Copy Link Address" the label content is modified (with
set_markup), you'll end up with a segfault.
So I'm trying to understand if this is intended behavior or a bug.
Couldn't find anything in the documentation or anywhere else.
A short program to trigger the error follows. Right-click on the
hyperlink, wait up to 5 seconds for another "label replaced" log line to
appear and click "Copy Link Address".
Thanks!
Suren
--------------
#include <gtk/gtk.h>
gint TimerCallback (gpointer l) {
gchar *msg;
msg = g_malloc(100);
snprintf(msg, 100,
"<a href=\"http://www.example.com/\";>http://www.example.com/</a>");
gtk_label_set_markup(GTK_LABEL(l), msg);
g_free(msg);
g_message("%s", "label replaced");
return 1;
}
static void activate (GtkApplication* app, gpointer user_data) {
GtkWidget *window;
GtkWidget *l;
gchar *msg;
msg = g_malloc(100);
l = gtk_label_new(NULL);
snprintf(msg, 100,
"<a href=\"http://www.example.com/\";>http://www.example.com/</a>");
gtk_label_set_markup(GTK_LABEL(l), msg);
g_free(msg);
window = gtk_application_window_new (app);
gtk_container_add(GTK_CONTAINER(window), l);
gtk_window_set_title(GTK_WINDOW(window), "Window");
gtk_window_set_default_size (GTK_WINDOW(window), 200, 200);
gtk_widget_show_all(window);
g_timeout_add(5000, TimerCallback, l);
}
int main (int argc, char **argv) {
GtkApplication *app;
int status;
app = gtk_application_new("org.gtk.example", G_APPLICATION_FLAGS_NONE);
g_signal_connect(app, "activate",
G_CALLBACK(activate), NULL);
status = g_application_run(G_APPLICATION(app),
argc, argv);
g_object_unref(app);
return status;
}
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