From abb3f2c3bcff582f75b1032a61abd4256bdcdee1 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Sat, 5 Sep 2015 05:54:26 +0000
Subject: searchview: improve footer navigation

Aallow navigating backwards and forwards, as some pages will be
bookmarked or some browsers may not have history.  Also add a
link back to the index where they presumably came from.

While we're at it, limit the number of results we have to 25
for now to avoid making the page too big and wasting clients
memory for irrelevant results.
---
 lib/PublicInbox/SearchView.pm | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

(limited to 'lib/PublicInbox/SearchView.pm')

diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index 6113bbf1..4d49d250 100644
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -7,6 +7,7 @@ use PublicInbox::SearchMsg;
 use PublicInbox::Hval;
 use PublicInbox::View;
 use POSIX qw/strftime/;
+our $LIM = 25;
 
 sub sres_top_html {
 	my ($ctx, $q) = @_;
@@ -15,7 +16,7 @@ sub sres_top_html {
 	my $o = int($cgi->param('o') || 0);
 	my $r = $cgi->param('r');
 	$r = (defined $r && $r ne '0');
-	my $opts = { offset => $o, mset => 1, relevance => $r };
+	my $opts = { limit => $LIM, offset => $o, mset => 1, relevance => $r };
 	my $mset = $ctx->{srch}->query($q, $opts);
 	my $total = $mset->get_matches_estimated;
 	my $query = PublicInbox::Hval->new_oneline($q);
@@ -29,9 +30,9 @@ sub sres_top_html {
 	$res .= qq{<input\ntype=submit\nvalue=search /></form>} .
 		  PublicInbox::View::PRE_WRAP;
 
-	my $foot = $ctx->{footer};
+	my $foot = $ctx->{footer} || '';
+	$foot = qq{Back to <a\nhref=".">index</a>.};
 	if ($total == 0) {
-		$foot ||= '';
 		$res .= "\n\n[No results found]</pre><hr /><pre>$foot";
 	} else {
 		$q = $query->as_href;
@@ -69,14 +70,23 @@ sub sres_top_html {
 		my $end = $o + $nr;
 		my $beg = $o + 1;
 		$res .= "<hr /><pre>";
-		$res .= "Results $beg-$end of $total.";
-		if ($nr < $total) {
-			$o = $o + $nr;
-			$qp = "q=$q&amp;o=$o";
+		$res .= "Results $beg-$end of $total";
+
+		my $n = $o + $LIM;
+		if ($n < $total) {
+			$qp = "q=$q&amp;o=$n";
+			$qp .= "&amp;r" if $r;
+			$res .= qq{, <a\nhref="?$qp">next</a>}
+		}
+		if ($o > 0) {
+			$res .= $n < $total ? '/' : ',      ';
+			my $p = $o - $LIM;
+			$qp = "q=$q";
+			$qp .= "&amp;o=$p" if $p > 0;
 			$qp .= "&amp;r" if $r;
-			$res .= qq{ <a\nhref="?$qp">more</a>}
+			$res .= qq{<a\nhref="?$qp">prev</a>};
 		}
-		$res .= "\n\n".$foot if $foot;
+		$res .= "\n\n".$foot;
 	}
 
 	$res .= "</pre></body></html>";
-- 
cgit v1.2.3-24-ge0c7