From da9b05867b3b3b447e1aa3ed165314ae47cc10ed Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Fri, 27 Aug 2010 10:40:08 +0200
Subject: Sync plugins farbar and topbar with Ikiwiki 3.20100722 sidebar.

---
 IkiWiki/Plugin/farbar.pm | 81 +++++++++++++++++++++++++++++++++++++++++-------
 IkiWiki/Plugin/topbar.pm | 81 +++++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 138 insertions(+), 24 deletions(-)

diff --git a/IkiWiki/Plugin/farbar.pm b/IkiWiki/Plugin/farbar.pm
index ab4390a..37f1013 100644
--- a/IkiWiki/Plugin/farbar.pm
+++ b/IkiWiki/Plugin/farbar.pm
@@ -7,15 +7,64 @@ package IkiWiki::Plugin::farbar;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
 
-sub import { #{{{
+sub import {
+	hook(type => "getsetup", id => "farbar", call => \&getsetup);
+	hook(type => "preprocess", id => "farbar", call => \&preprocess);
 	hook(type => "pagetemplate", id => "farbar", call => \&pagetemplate);
-} # }}}
+}
 
-sub farbar_content ($) { #{{{
+sub getsetup () {
+	return
+		plugin => {
+			safe => 1,
+			rebuild => 1,
+		},
+		global_farbars => {
+			type => "boolean",
+			example => 1,
+			description => "show farbar page on all pages?",
+			safe => 1,
+			rebuild => 1,
+		},
+}
+
+my %pagefarbar;
+
+sub preprocess (@) {
+	my %params=@_;
+
+	my $page=$params{page};
+	return "" unless $page eq $params{destpage};
+	
+	if (! defined $params{content}) {
+		$pagefarbar{$page}=undef;
+	}
+	else {
+		my $file = $pagesources{$page};
+		my $type = pagetype($file);
+
+		$pagefarbar{$page}=
+			IkiWiki::htmlize($page, $page, $type,
+			IkiWiki::linkify($page, $page,
+			IkiWiki::preprocess($page, $page, $params{content})));
+	}
+
+	return "";
+}
+
+my $oldfile;
+my $oldcontent;
+
+sub farbar_content ($) {
 	my $page=shift;
 	
+	return delete $pagefarbar{$page} if defined $pagefarbar{$page};
+
+	return if ! exists $pagefarbar{$page} && 
+		defined $config{global_farbars} && ! $config{global_farbars};
+
 	my $farbar_page=bestlink($page, "farbar") || return;
 	my $farbar_file=$pagesources{$farbar_page} || return;
 	my $farbar_type=pagetype($farbar_file);
@@ -26,7 +75,16 @@ sub farbar_content ($) { #{{{
 		# currently requires a wiki rebuild.
 		add_depends($page, $farbar_page);
 
-		my $content=readfile(srcfile($farbar_file));
+		my $content;
+		if (defined $oldfile && $farbar_file eq $oldfile) {
+			$content=$oldcontent;
+		}
+		else {
+			$content=readfile(srcfile($farbar_file));
+			$oldcontent=$content;
+			$oldfile=$farbar_file;
+		}
+
 		return unless length $content;
 		return IkiWiki::htmlize($farbar_page, $page, $farbar_type,
 		       IkiWiki::linkify($farbar_page, $page,
@@ -34,20 +92,19 @@ sub farbar_content ($) { #{{{
 		       IkiWiki::filter($farbar_page, $page, $content))));
 	}
 
-} # }}}
+}
 
-sub pagetemplate (@) { #{{{
+sub pagetemplate (@) {
 	my %params=@_;
 
-	my $page=$params{page};
 	my $template=$params{template};
-	
-	if ($template->query(name => "farbar")) {
-		my $content=farbar_content($page);
+	if ($params{destpage} eq $params{page} &&
+	    $template->query(name => "farbar")) {
+		my $content=farbar_content($params{destpage});
 		if (defined $content && length $content) {
 		        $template->param(farbar => $content);
 		}
 	}
-} # }}}
+}
 
 1
diff --git a/IkiWiki/Plugin/topbar.pm b/IkiWiki/Plugin/topbar.pm
index aa62a11..2705161 100644
--- a/IkiWiki/Plugin/topbar.pm
+++ b/IkiWiki/Plugin/topbar.pm
@@ -7,15 +7,64 @@ package IkiWiki::Plugin::topbar;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
 
-sub import { #{{{
+sub import {
+	hook(type => "getsetup", id => "topbar", call => \&getsetup);
+	hook(type => "preprocess", id => "topbar", call => \&preprocess);
 	hook(type => "pagetemplate", id => "topbar", call => \&pagetemplate);
-} # }}}
+}
 
-sub topbar_content ($) { #{{{
+sub getsetup () {
+	return
+		plugin => {
+			safe => 1,
+			rebuild => 1,
+		},
+		global_topbars => {
+			type => "boolean",
+			example => 1,
+			description => "show topbar page on all pages?",
+			safe => 1,
+			rebuild => 1,
+		},
+}
+
+my %pagetopbar;
+
+sub preprocess (@) {
+	my %params=@_;
+
+	my $page=$params{page};
+	return "" unless $page eq $params{destpage};
+	
+	if (! defined $params{content}) {
+		$pagetopbar{$page}=undef;
+	}
+	else {
+		my $file = $pagesources{$page};
+		my $type = pagetype($file);
+
+		$pagetopbar{$page}=
+			IkiWiki::htmlize($page, $page, $type,
+			IkiWiki::linkify($page, $page,
+			IkiWiki::preprocess($page, $page, $params{content})));
+	}
+
+	return "";
+}
+
+my $oldfile;
+my $oldcontent;
+
+sub topbar_content ($) {
 	my $page=shift;
 	
+	return delete $pagetopbar{$page} if defined $pagetopbar{$page};
+
+	return if ! exists $pagetopbar{$page} && 
+		defined $config{global_topbars} && ! $config{global_topbars};
+
 	my $topbar_page=bestlink($page, "topbar") || return;
 	my $topbar_file=$pagesources{$topbar_page} || return;
 	my $topbar_type=pagetype($topbar_file);
@@ -26,7 +75,16 @@ sub topbar_content ($) { #{{{
 		# currently requires a wiki rebuild.
 		add_depends($page, $topbar_page);
 
-		my $content=readfile(srcfile($topbar_file));
+		my $content;
+		if (defined $oldfile && $topbar_file eq $oldfile) {
+			$content=$oldcontent;
+		}
+		else {
+			$content=readfile(srcfile($topbar_file));
+			$oldcontent=$content;
+			$oldfile=$topbar_file;
+		}
+
 		return unless length $content;
 		return IkiWiki::htmlize($topbar_page, $page, $topbar_type,
 		       IkiWiki::linkify($topbar_page, $page,
@@ -34,20 +92,19 @@ sub topbar_content ($) { #{{{
 		       IkiWiki::filter($topbar_page, $page, $content))));
 	}
 
-} # }}}
+}
 
-sub pagetemplate (@) { #{{{
+sub pagetemplate (@) {
 	my %params=@_;
 
-	my $page=$params{page};
 	my $template=$params{template};
-	
-	if ($template->query(name => "topbar")) {
-		my $content=topbar_content($page);
+	if ($params{destpage} eq $params{page} &&
+	    $template->query(name => "topbar")) {
+		my $content=topbar_content($params{destpage});
 		if (defined $content && length $content) {
 		        $template->param(topbar => $content);
 		}
 	}
-} # }}}
+}
 
 1
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