From 4bda18a50aab714e72fce347cb4cff32316e55de Mon Sep 17 00:00:00 2001
From: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Date: Tue, 5 Jan 2010 15:23:22 +0100
Subject: [PATCH] Support align attribute for img with caption

This is achieved by preparing CSS definitions that emulates the behavior
of the align attribute, and passing it to the outermost IMG wrapper
(A or TABLE) instead of passing the align value to IMG directly.
---
 IkiWiki/Plugin/img.pm | 21 ++++++++++++++++-----
 doc/style.css         | 20 ++++++++++++++++++++
 2 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 32023fa97..6f1919ea0 100644
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -155,16 +155,23 @@ sub preprocess (@) {
 		'" height="'.$dheight.'"'.
 		(exists $params{alt} ? ' alt="'.$params{alt}.'"' : '').
 		(exists $params{title} ? ' title="'.$params{title}.'"' : '').
-		(exists $params{align} ? ' align="'.$params{align}.'"' : '').
 		(exists $params{class} ? ' class="'.$params{class}.'"' : '').
 		(exists $params{id} ? ' id="'.$params{id}.'"' : '').
 		' />';
 
 	if (! defined $params{link} || lc($params{link}) eq 'yes') {
-		$imgtag='<a href="'.$fileurl.'">'.$imgtag.'</a>';
+		if (exists $params{caption} || !exists $params{align}) {
+			$imgtag='<a href="'.$fileurl.'">'.$imgtag.'</a>';
+		} else {
+			$imgtag='<a href="'.$fileurl.'" class="align-'.$params{align}.'">'.$imgtag.'</a>';
+		}
 	}
 	elsif ($params{link} =~ /^\w+:\/\//) {
-		$imgtag='<a href="'.$params{link}.'">'.$imgtag.'</a>';
+		if (exists $params{caption} || !exists $params{align}) {
+			$imgtag='<a href="'.$params{link}.'">'.$imgtag.'</a>';
+		} else {
+			$imgtag='<a href="'.$params{link}.'" class="align-'.$params{align}.'">'.$imgtag.'</a>';
+		}
 	}
 	else {
 		my $b = bestlink($params{page}, $params{link});
@@ -173,12 +180,16 @@ sub preprocess (@) {
 			add_depends($params{page}, $b, deptype("presence"));
 			$imgtag=htmllink($params{page}, $params{destpage},
 				$params{link}, linktext => $imgtag,
-				noimageinline => 1);
+				noimageinline => 1,
+				(exists $params{caption} || !exists $params{align}) ?
+					() : (class => 'align-'.$params{align}));
 		}
 	}
 
 	if (exists $params{caption}) {
-		return '<table class="img">'.
+		return '<table class="img'.
+			(exists $params{align} ? ' align-'.$params{align} : '').
+			'">'.
 			'<caption>'.$params{caption}.'</caption>'.
 			'<tr><td>'.$imgtag.'</td></tr>'.
 			'</table>';
diff --git a/doc/style.css b/doc/style.css
index be86a0818..c56494fff 100644
--- a/doc/style.css
+++ b/doc/style.css
@@ -82,6 +82,26 @@ div.tags {
 	text-align: center;
 }
 
+.align-left {
+	float:left;
+}
+
+.align-right {
+	float:right;
+}
+
+.align-top {
+	vertical-align:top;
+}
+
+.align-bottom {
+	vertical-align:bottom;
+}
+
+.align-middle {
+	vertical-align:middle;
+}
+
 #backlinks {
 	margin-top: 1em;
 }
-- 
2.26.2