Re: [gtk-list] file selection bombs

[Nils Philippsen <nils rhlx01 rz fht-esslingen de>]

Recently I got the following mail regarding to my query on gtk-list. I
apologize for only posting source code which wouldhn't compile standalone. Now
I attached to files (updownload.c, updownload.h), which will compile out of
the box (gcc -o updownload updownload.c -L<where your gtk+libs are> -I<where
your gtk+includes are> -lgtk -lgdk -lglib -lX11 -lm) _and_ show the strange
behaviour I noticed only in gtk+-0.99.0 (not in previuos versions of gtk+):

Selecting file by double-clicking on it will bomb with SIGABRT, Selecting file
by single-clicking, then OK will succeed.

Thanks for any help regarding this,
Nils

PS: I really do think this is a bug in gtk+, since it bombs with a
double-click and succeeds with a single-click, then OK.

On Thu, 18 Dec 1997, Tim Janik wrote:

> On Thu, 18 Dec 1997, Nils Philippsen wrote:
> 
> > Hi,
> > 
> > I'm suffering from a problem within the file selection box. Nearly every time
> > I select a file, then OK, the app bombs with SIGABRT:
> > 
> > --snip--
> 
> hm, could you please post an example that compiles out of the box
> and give a short description how to trigger the bug?
> 
> id rather spend my time debugging your problem, than converting your code
> to get it to work ;)
> 
> > 
> > Regards Nils
> > 
> 
> ---
> ciaoTJ
> 

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Nils Philippsen                      @college: nils@rhlx01.rz.fht-esslingen.de
Vogelsangstrasse 115                @home: nils@wombat.dialup.fht-esslingen.de
D 70197 Stuttgart                     Do not meddle in the affairs of wizards,
+49-711-6599405                     for you are crunchy and good with ketchup.
#ifndef __UPDOWNLOAD_H

#define __UPDOWNLOAD_H

#ifdef __cplusplus
  extern "C" {
#endif /* __cplusplus */

void file_upload_cmd_callback (GtkWidget * widget, gpointer data);
void file_download_cmd_callback (GtkWidget * widget, gpointer data);
gint file_upload_del_callback(GtkWidget * widget, GdkEvent *event, GtkWidget *dlg);
void file_upload_ok_sel(GtkWidget *widget, GtkWidget *dlg);
void file_upload_cancel_sel(GtkWidget *widget, GtkWidget *dlg);
void file_upload_fileerror(void);
gint file_upload_fileerror_del(GtkWidget * widget, GdkEvent *event, GtkWidget *dlg);
void file_upload_fileerror_ok(GtkWidget *widget, GtkWidget *dlg);


#ifdef __cplusplus
  }
#endif /* __cplusplus */

#endif /* __UPDOWNLOAD_H */
#include <gtk/gtk.h>
#include <string.h>

#include "updownload.h"

char *filename;

void
main (int argc, char **argv)
{
  GtkWidget *filew;
  filename=strdup("");
  gtk_init(&argc, &argv);
  filew = gtk_file_selection_new ("Upload File");
  gtk_signal_connect (GTK_OBJECT (filew), "delete_event", 
			(GtkSignalFunc) file_upload_del_callback, GTK_WIDGET(filew));
  gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION (filew)->ok_button),
			"clicked", (GtkSignalFunc) file_upload_ok_sel, GTK_WIDGET(filew));
  gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION (filew)->cancel_button),
			"clicked", (GtkSignalFunc) file_upload_cancel_sel, GTK_WIDGET(filew));
  gtk_file_selection_set_filename (GTK_FILE_SELECTION(filew), filename);
  gtk_widget_show(filew);
  gtk_main();
}

gint
file_upload_del_callback (GtkWidget *widget, GdkEvent *event, GtkWidget *dlg)
{
  file_upload_cancel_sel(widget, dlg);
  return FALSE;
}

void
file_upload_cancel_sel (GtkWidget *widget, GtkWidget *dlg)
{
  gtk_widget_hide(dlg);
  gtk_widget_destroy(dlg);
}

void
file_upload_ok_sel (GtkWidget *widget, GtkWidget *dlg)
{
  char newfilename[1025];
  FILE *fd;
  strncpy(newfilename,gtk_file_selection_get_filename (GTK_FILE_SELECTION (dlg)),1024);
  gtk_widget_hide(GTK_WIDGET(dlg));
  gtk_widget_destroy(GTK_WIDGET(dlg));
  if((fd=fopen(newfilename, "r"))==(FILE *) NULL) {
    fclose(fd);
    file_upload_fileerror();
  } else {
    fclose(fd);
    if (filename!=(char *)0)
      free(filename);
    filename=strdup(newfilename);
  }
  g_print("Selected filename: %s\n", filename);
  gtk_main_quit();
}

void
file_upload_fileerror(void)
{
  GtkWidget *window;
  GtkWidget *label;
  GtkWidget *button;

  window=gtk_dialog_new();

  gtk_grab_add(window);

  gtk_container_border_width(GTK_CONTAINER(window),10);

  gtk_grab_add(window);

  gtk_window_set_title (GTK_WINDOW (window), "Error");

  label=gtk_label_new("File could not be accessed");

  gtk_container_add(GTK_CONTAINER(GTK_DIALOG(window)->vbox), label);

  gtk_widget_show(label);

  button=gtk_button_new_with_label("  OK  ");

  GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);

  gtk_container_add(GTK_CONTAINER(GTK_DIALOG(window)->action_area), button);

  gtk_widget_grab_default (button);

  gtk_signal_connect (GTK_OBJECT(button), "delete_event", (GtkSignalFunc) file_upload_fileerror_del, window);

  gtk_signal_connect (GTK_OBJECT(button), "clicked", (GtkSignalFunc) file_upload_fileerror_ok, window);

  gtk_widget_show(button);

  gtk_widget_show(window);

}

gint
file_upload_fileerror_del(GtkWidget *widget, GdkEvent *event, GtkWidget *dlg)
{
  file_upload_fileerror_ok(widget, dlg);
  return FALSE;
}

void
file_upload_fileerror_ok(GtkWidget *widget, GtkWidget *dlg)
{
  gtk_grab_remove(dlg);
  gtk_widget_hide(dlg);
  gtk_widget_destroy(dlg);
}