From 358fa953e189d6f8a7925be8533fe7b7c5699503 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Thu, 15 Apr 2010 16:40:01 -0400
Subject: sidebar: Now a sidebar directive can be used to override the sidebar
 shown on a page.

---
 IkiWiki/Plugin/sidebar.pm | 42 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

(limited to 'IkiWiki/Plugin')

diff --git a/IkiWiki/Plugin/sidebar.pm b/IkiWiki/Plugin/sidebar.pm
index 41812e1c1..d63cb5246 100644
--- a/IkiWiki/Plugin/sidebar.pm
+++ b/IkiWiki/Plugin/sidebar.pm
@@ -10,6 +10,7 @@ use IkiWiki 3.00;
 
 sub import {
 	hook(type => "getsetup", id => "sidebar", call => \&getsetup);
+	hook(type => "preprocess", id => "sidebar", call => \&preprocess);
 	hook(type => "pagetemplate", id => "sidebar", call => \&pagetemplate);
 }
 
@@ -21,9 +22,39 @@ sub getsetup () {
 		},
 }
 
+my %pagesidebar;
+
+sub preprocess (@) {
+	my %params=@_;
+	my $content=shift;
+	shift;
+
+	if (! defined $content) {
+		error(gettext("sidebar content not specified"));
+	}
+
+	my $page=$params{page};
+	return "" unless $page eq $params{destpage};
+	my $file = $pagesources{$page};
+	my $type = pagetype($file);
+
+	$pagesidebar{$page}=
+		IkiWiki::htmlize($page, $page, $type,
+		IkiWiki::linkify($page, $page,
+		IkiWiki::preprocess($page, $page,
+		IkiWiki::filter($page, $page, $content))));
+
+	return "";
+}
+
+my $oldfile;
+my $oldcontent;
+
 sub sidebar_content ($) {
 	my $page=shift;
 	
+	return $pagesidebar{$page} if exists $pagesidebar{$page};
+
 	my $sidebar_page=bestlink($page, "sidebar") || return;
 	my $sidebar_file=$pagesources{$sidebar_page} || return;
 	my $sidebar_type=pagetype($sidebar_file);
@@ -34,7 +65,16 @@ sub sidebar_content ($) {
 		# currently requires a wiki rebuild.
 		add_depends($page, $sidebar_page);
 
-		my $content=readfile(srcfile($sidebar_file));
+		my $content;
+		if (defined $oldfile && $sidebar_file eq $oldfile) {
+			$content=$oldcontent;
+		}
+		else {
+			$content=readfile(srcfile($sidebar_file));
+			$oldcontent=$content;
+			$oldfile=$sidebar_file;
+		}
+
 		return unless length $content;
 		return IkiWiki::htmlize($sidebar_page, $page, $sidebar_type,
 		       IkiWiki::linkify($sidebar_page, $page,
-- 
cgit v1.2.3