#!/usr/bin/perl

# Copyright (C) 2003 Mandrakesoft
#
# Author: Florent Villard <warly@mandrakesoft.com>
#         A Ginies
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

package MDK::Wizard::Wizcommon_gtk2;
use strict;
use common;

sub wizard_progress_bar {
    use lib qw(/usr/lib/libDrakX);
    use ugtk2 qw(:wrappers);
    my ($command, $descr) = @_;
    my ($value, $timer);
    my $my_win = ugtk2->new("");
    my $window1 = $my_win->{window};
    gtkadd($window1,
	   gtkpack(Gtk2::VBox->new(0,0),
		   gtkpack_(Gtk2::VBox->new(0, 3),
			    0, my $text = Gtk2::Label->new($descr),
			    0, my $text2 = Gtk2::Label->new,
			    0, Gtk2::HSeparator->new,
			    0, my $pbar = Gtk2::ProgressBar->new,
			   ),
		  ),
	  );
    $window1->realize;
    $pbar->set_pulse_step(0.1);

    local *TMP;
    open(TMP, "$command 2>&1 |");
    while ($value = <TMP>) {
      $timer = Glib::Timeout->add(10, sub {});
      $pbar->pulse;
      $text2->set_text($value);
      gtkflush();
      next;
      $my_win->main;
      $window1->show_all;
      undef $value;
    }
    close TMP;
    $my_win->destroy;
    return 0;
}


my $timeout;
sub gtktext_get_log {
  my ($command, $log_w, $log_scroll) = @_;
  my $buffer = $log_w->get_buffer;
  $buffer->delete($buffer->get_start_iter, $buffer->get_end_iter);

  my ($prev_scroll, $want_scroll_down) = (0, 1);
  my $pid = open(my $F, "$command 2>&1 |") or return sub { 1 };
  fcntl($F, c::F_SETFL(), c::O_NONBLOCK()) or die "can't fcntl F_SETFL: $!";
  Glib::Source->remove($timeout) if $timeout; $timeout = '';
  $timeout = Glib::Timeout->add(100, sub {
                                  if ($buffer) {
                                    my $end = $buffer->get_end_iter;
                                    while (defined (my $s = <$F>)) {
                                      $buffer->insert_interactive($end, $s, -1);
                                    }
                                    my $new_scroll = $log_scroll->child->get_vadjustment->get_value;
                                    $want_scroll_down &&= $new_scroll >= $prev_scroll;
                                    $prev_scroll = $new_scroll;
                                    $log_w->scroll_to_iter($end, 0, 0, 0, 0) if $want_scroll_down;
                                  }
                                  if (waitpid($pid, c::WNOHANG()) > 0) {
                                    $buffer->insert_interactive($buffer->get_end_iter, "\n" . "#" x 20 . "\n" . " This script has terminated,\nyou can close this window", -1) if $buffer;
                                    $pid = $timeout = '';
                                    0;
				} else {
                                    1;
				}
			      });
  sub {
      if ($pid) {
	  $::in->ask_yesorno('', N("The command is still running. Do you want to kill it and quit the Wizard?")) or return;
	  kill 9, $pid+1;
	  1;
      }
      $buffer = '';
      1;
  };
}

sub run_command_and_log {
    use lib qw(/usr/lib/libDrakX);
    my ($command, $descr, $when_command_is_over) = @_;
    my $w = ugtk2->new('');
    gtkadd(gtkset_size_request($w->{window}, 800, 400),
           gtkpack_(gtkset_modal(Gtk2::VBox->new, 1),
                    0, $descr,
                    1, my $log_scroll = create_scrolled_window(my $log_w = gtkset_editable(Gtk2::TextView->new, 0)),
                    0, my $close_w = Gtk2::Button->new(N("Close"))),
                   );
    my $stop_running = gtktext_get_log($command, $log_w, $log_scroll);
    $close_w->signal_connect(clicked => sub { $stop_running->() and $w->destroy and return 0 });
    $close_w->grab_focus;
    $w->show;
}

1;