how to access the text entry in GtkFileChooser - gtk

Question

In GTK+, is it possible to access the GtkWidget -- text entry for file name in GtkFileChooser? I want to disable the editable attribute of the text entry using gtk_entry_set_editable.

Answer 1

As far as I know, no.
What do you ultimately want to achieve? Perhaps there is another approach.

Answer 2

If one had a legitimate reason to get a pointer to the GtkEntry, then derive from GtkFileChooserDialog, which will probably mutate into a GtkFileChooserDefault. GObject will complain about an illegal cast when checking type instance even though it works and the data of derived object can be accessed without errors, use GTK_FILE_CHOOSER instead of MY_FILE_CHOOSER to avoid the warning messages and a local static for the entry pointer. The entry widget is NOT accessible during construction. Here is the pertinent code:
static GtkEntry *chooser_entry;
static void my_file_chooser_finalize (GObject *object)
{
chooser_entry = NULL;
(G_OBJECT_CLASS (my_file_chooser_parent_class))->finalize (object);
}
static void my_file_chooser_init (MyFileChooser *self)
{
chooser_entry = NULL;
}
static void look_for_entry(GtkWidget *widget, void *self)
{
if (GTK_IS_ENTRY(widget)) {
chooser_entry = (GtkEntry*)widget;
}
else if (GTK_IS_CONTAINER(widget)) {
gtk_container_forall ( GTK_CONTAINER (widget), look_for_entry, self);
}
}
static void file_chooser_find_entry (GtkWidget *chooser)
{
GList *children, *iter;
/* Get all objects inside the dialog */
children = gtk_container_get_children (GTK_CONTAINER (chooser));
for (iter = children; iter; iter = iter->next) {
if (GTK_IS_CONTAINER(iter->data)) {
gtk_container_forall ( GTK_CONTAINER (iter->data), look_for_entry, chooser);
if (chooser_entry != NULL) {
break;
}
}
}
g_list_free (children);
}
GtkEntry *my_file_chooser_get_entry (GtkWidget *widget)
{
if (chooser_entry == NULL) {
file_chooser_find_entry (widget);
}
return chooser_entry;
}
char *my_file_chooser_get_entry_text(GtkWidget *widget)
{
char *text;
GtkEntry *entry;
text = NULL;
if (GTK_IS_FILE_CHOOSER(widget)) {
entry = my_file_chooser_get_entry(widget);
if (GTK_IS_ENTRY(entry)) {
if (gtk_entry_get_text_length (entry)) {
text = g_strdup (gtk_entry_get_text(entry));
}
}
}
return text;
}
Maybe not ideal, but works.