patch for multiple sidebars

doc/todo/beef_up_sidebar_to_allow_for_multiple_sidebars.mdwn

@@ -13,5 +13,57 @@ those contents instead.
 
 > In mine I just copied sidebar out and made some extra "sidebars", but they go elsewhere. Ugly hack, but it works. --[[simonraven]]
 
+>> Here a simple [[patch]] for multiple sidebars. Not too fancy but better than having multiple copies of the sidebar plugin. --[[jeanprivat]]
+
+<pre>
+--- /usr/share/perl5/IkiWiki/Plugin/sidebar.pm	2010-02-11 22:53:17.000000000 -0500
++++ plugins/IkiWiki/Plugin/sidebar.pm	2010-02-27 09:54:12.524412391 -0500
+@@ -19,12 +19,20 @@
+ 			safe => 1,
+ 			rebuild => 1,
+ 		},
++		active_sidebars => {
++			type => "string",
++			example => qw(sidebar banner footer),
++			description => "Which sidebars must be activated and processed.",
++			safe => 1,
++			rebuild => 1
++		},
+ }
+ 
+-sub sidebar_content ($) {
++sub sidebar_content ($$) {
+ 	my $page=shift;
++	my $sidebar=shift;
+ 	
+-	my $sidebar_page=bestlink($page, "sidebar") || return;
++	my $sidebar_page=bestlink($page, $sidebar) || return;
+ 	my $sidebar_file=$pagesources{$sidebar_page} || return;
+ 	my $sidebar_type=pagetype($sidebar_file);
+ 	
+@@ -49,11 +57,17 @@
+ 
+ 	my $page=$params{page};
+ 	my $template=$params{template};
+-	
+-	if ($template->query(name => "sidebar")) {
+-		my $content=sidebar_content($page);
+-		if (defined $content && length $content) {
+-		        $template->param(sidebar => $content);
++
++	my @sidebars;
++	if (defined $config{active_sidebars} && length $config{active_sidebars}) { @sidebars = @{$config{active_sidebars}}; }
++	else { @sidebars = qw(sidebar); }
++
++	foreach my $sidebar (@sidebars) {
++		if ($template->query(name => $sidebar)) {
++			my $content=sidebar_content($page, $sidebar);
++			if (defined $content && length $content) {
++				$template->param($sidebar => $content);
++			}
+ 		}
+ 	}
+ }
+</pre>
 
 [[!tag wishlist]]