X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/0a8fc6ddf55697a1ed1f8b277265b430ffe5350c..1d3b2674c87c9cac395228dac9b60c751d4e06a1:/IkiWiki/Plugin/linkmap.pm

diff --git a/IkiWiki/Plugin/linkmap.pm b/IkiWiki/Plugin/linkmap.pm
index 2c92784c2..ac26e072e 100644
--- a/IkiWiki/Plugin/linkmap.pm
+++ b/IkiWiki/Plugin/linkmap.pm
@@ -3,79 +3,53 @@ package IkiWiki::Plugin::linkmap;
 
 use warnings;
 use strict;
-use IkiWiki;
+use IkiWiki 3.00;
 use IPC::Open2;
 
-sub import { #{{{
-	IkiWiki::hook(type => "preprocess", id => "linkmap",
-		call => \&preprocess);
-	IkiWiki::hook(type => "format", id => "linkmap",
-		call => \&format);
-} # }}}
+sub import {
+	hook(type => "getsetup", id => "linkmap", call => \&getsetup);
+	hook(type => "preprocess", id => "linkmap", call => \&preprocess);
+}
+
+sub getsetup () {
+	return
+		plugin => {
+			safe => 1,
+			rebuild => undef,
+			section => "widget",
+		},
+}
 
 my $mapnum=0;
-my %maps;
 
-sub preprocess (@) { #{{{
+sub preprocess (@) {
 	my %params=@_;
+
 	$params{pages}="*" unless defined $params{pages};
 	
-	# Needs to update whenever a page is added or removed, so
-	# register a dependency.
-	IkiWiki::add_depends($params{page}, $params{pages});
-	
-	# Can't just return the linkmap here, since the htmlscrubber
-	# scrubs out all <object> tags (with good reason!)
-	# Instead, insert a placeholder tag, which will be expanded during
-	# formatting.
 	$mapnum++;
-	$maps{$mapnum}=\%params;
-	return "<div class=\"linkmap$mapnum\"></div>";
-} # }}}
-
-sub format (@) { #{{{
-        my %params=@_;
-
-	$params{content}=~s/<div class=\"linkmap(\d+)"><\/div>/genmap($1)/eg;
-
-        return $params{content};
-} # }}}
-
-sub genmap ($) { #{{{
-	my $mapnum=shift;
-	return "" unless exists $maps{$mapnum};
-	my %params=%{$maps{$mapnum}};
+	my $connected=IkiWiki::yesno($params{connected});
 
 	# Get all the items to map.
-	my %mapitems = ();
-	foreach my $item (keys %IkiWiki::links) {
-		if (IkiWiki::pagespec_match($item, $params{pages})) {
-			my $link=IkiWiki::htmlpage($item);
-			$link=IkiWiki::abs2rel($link, IkiWiki::dirname($params{page}));
-			$mapitems{$item}=$link;
-		}
-	}
+	my %mapitems = map { $_ => urlto($_, $params{destpage}) }
+		pagespec_match_list($params{page}, $params{pages},
+			# update when a page is added or removed, or its
+			# links change
+			deptype => deptype("presence", "links"));
+
+	my $dest=$params{page}."/linkmap.png";
 
 	# Use ikiwiki's function to create the file, this makes sure needed
 	# subdirs are there and does some sanity checking.
-	IkiWiki::writefile("$params{page}.png", $IkiWiki::config{destdir}, "");
+	will_render($params{page}, $dest);
+	writefile($dest, $config{destdir}, "");
 
 	# Run dot to create the graphic and get the map data.
-	# TODO: should really add the png to renderedfiles and call
-	# check_overwrite, but currently renderedfiles
-	# only supports listing one file per page.
-	my $tries=10;
 	my $pid;
-	while (1) {
-		eval {
-			$pid=open2(*IN, *OUT, "dot /dev/stdin -Tpng -o '$IkiWiki::config{destdir}/$params{page}.png' -Tcmapx");
-		};
-		last unless $@;
-		$tries--;
-		if ($tries < 1) {
-			return "failed to run dot: $@";
-		}
-	}
+	my $sigpipe=0;
+	$SIG{PIPE}=sub { $sigpipe=1 };
+	$pid=open2(*IN, *OUT, "dot -Tpng -o '$config{destdir}/$dest' -Tcmapx");
+	
 	# open2 doesn't respect "use open ':utf8'"
 	binmode (IN, ':utf8'); 
 	binmode (OUT, ':utf8'); 
@@ -83,25 +57,44 @@ sub genmap ($) { #{{{
 	print OUT "digraph linkmap$mapnum {\n";
 	print OUT "concentrate=true;\n";
 	print OUT "charset=\"utf-8\";\n";
+	print OUT "ratio=compress;\nsize=\"".($params{width}+0).", ".($params{height}+0)."\";\n"
+		if defined $params{width} and defined $params{height};
+	my %shown;
+	my $show=sub {
+		my $item=shift;
+		if (! $shown{$item}) {
+			print OUT "\"$item\" [shape=box,href=\"$mapitems{$item}\"];\n";
+			$shown{$item}=1;
+		}
+	};
 	foreach my $item (keys %mapitems) {
-		print OUT "\"$item\" [shape=box,href=\"$mapitems{$item}\"];\n";
-		foreach my $link (map { IkiWiki::bestlink($item, $_) } @{$IkiWiki::links{$item}}) {
-			print OUT "\"$item\" -> \"$link\";\n"
-				if $mapitems{$link};
+		$show->($item) unless $connected;
+		foreach my $link (map { bestlink($item, $_) } @{$links{$item}}) {
+			next unless length $link and $mapitems{$link};
+			foreach my $endpoint ($item, $link) {
+				$show->($endpoint);
+			}
+			print OUT "\"$item\" -> \"$link\";\n";
 		}
 	}
 	print OUT "}\n";
-	close OUT;
+	close OUT || error gettext("failed to run dot");
 
 	local $/=undef;
-	my $ret="<object data=\"".
-	        IkiWiki::abs2rel("$params{page}.png", IkiWiki::dirname($params{page})).
-	        "\" type=\"image/png\" usemap=\"#linkmap$mapnum\">\n".
-	         <IN>.
-	         "</object>";
-	close IN;
+	my $ret="<img src=\"".urlto($dest, $params{destpage}).
+	       "\" alt=\"".gettext("linkmap").
+	       "\" usemap=\"#linkmap$mapnum\" />\n".
+	        <IN>;
+	close IN || error gettext("failed to run dot");
+	
 	waitpid $pid, 0;
+	if ($?) {
+		error gettext("failed to run dot");
+	}
+	$SIG{PIPE}="DEFAULT";
+	error gettext("failed to run dot") if $sigpipe;
+
 	return $ret;
-} #}}}
+}
 
 1