# Copyright (C) 2007  Alex Schroeder <alex@gnu.org>
#
# 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 3 of the License, 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
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

use strict;
use v5.10;

our ($q);
our ($GoogleCustomSearchEngine);

$GoogleCustomSearchEngine = 'http://www.google.com/cse?cx=004774160799092323420:6-ff2s0o6yi&q=';

AddModuleDescription('google-custom-search.pl');

# disable search form
sub GetSearchForm {}

# No more searching of titles
*OldGoogleCustomGetSearchLink = \&GetSearchLink;
*GetSearchLink = \&NewGoogleCustomGetSearchLink;

sub NewGoogleCustomGetSearchLink {
  my ($text, $class, $name, $title) = @_;
  $text = NormalToFree($text);
  # It would be complicated to use ScriptLink here because of quoting
  # issues: ScriptUrl expects a quoted URL, which it then proceeds to
  # unquote again, etc. It's safer to just copy the necessary code
  # from ScriptLink.
  my %params;
  $params{'-rel'} = 'nofollow';
  $params{-href} = $GoogleCustomSearchEngine . UrlEncode(qq("$text"));
  $params{'-class'} = $class if $class;
  $params{'-name'} = UrlEncode($name) if $name;
  $params{'-title'} = $title if $title;
  return $q->a(\%params, $text);
}

*OldGoogleCustomGetHeader = \&GetHeader;
*GetHeader = \&NewGoogleCustomGetHeader;

sub NewGoogleCustomGetHeader {
  my $html = OldGoogleCustomGetHeader(@_);
  my $form = qq {
<!-- Google CSE Search Box Begins  -->
<form class="tiny" action="http://www.google.com/cse" id="searchbox_004774160799092323420:6-ff2s0o6yi"><p>
<input type="hidden" name="cx" value="004774160799092323420:6-ff2s0o6yi" />
<input type="text" name="q" size="25" />
<input type="submit" name="sa" value="Search" />
</p></form>
<script type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_004774160799092323420%3A6-ff2s0o6yi"></script>
<!-- Google CSE Search Box Ends -->
};
  $html =~ s{</span>}{</span>$form};
  return $html;
}