use warnings;
use strict;
-use IkiWiki;
+use IkiWiki 3.00;
use IPC::Open2;
+use HTML::Entities;
-sub import { #{{{
+sub import {
+ hook(type => "getsetup", id => "linkmap", call => \&getsetup);
hook(type => "preprocess", id => "linkmap", call => \&preprocess);
- hook(type => "format", id => "linkmap", call => \&format);
-} # }}}
+}
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ section => "widget",
+ },
+}
my $mapnum=0;
-my %maps;
-sub preprocess (@) { #{{{
+sub pageescape {
+ my $item = shift;
+ # encoding explicitly in case ikiwiki is configured to accept <> or &
+ # in file names
+ my $title = pagetitle($item, 1);
+ # it would not be necessary to encode *all* the html entities (<> would
+ # be sufficient, &" probably a good idea), as dot accepts utf8, but it
+ # isn't bad either
+ $title = encode_entities($title);
+ return("<$title>");
+}
+
+sub preprocess (@) {
my %params=@_;
$params{pages}="*" unless defined $params{pages};
- # Needs to update whenever a page is added or removed, so
- # register a dependency.
- add_depends($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 $item (keys %links) {
- if (pagespec_match($item, $params{pages})) {
- my $link=htmlpage($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.
- writefile("$params{page}.png", $config{destdir}, "");
+ will_render($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 {
- $pid=open2(*IN, *OUT, "dot -Tpng -o '$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}/$dest' -Tcmapx");
+
# open2 doesn't respect "use open ':utf8'"
binmode (IN, ':utf8');
binmode (OUT, ':utf8');
print OUT "charset=\"utf-8\";\n";
print OUT "ratio=compress;\nsize=\"".($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 pageescape($item)." [shape=box,href=\"$mapitems{$item}\"];\n";
+ $shown{$item}=1;
+ }
+ };
foreach my $item (keys %mapitems) {
- print OUT "\"$item\" [shape=box,href=\"$mapitems{$item}\"];\n";
+ $show->($item) unless $connected;
foreach my $link (map { bestlink($item, $_) } @{$links{$item}}) {
- print OUT "\"$item\" -> \"$link\";\n"
- if $mapitems{$link};
+ next unless length $link and $mapitems{$link};
+ foreach my $endpoint ($item, $link) {
+ $show->($endpoint);
+ }
+ print OUT pageescape($item)." -> ".pageescape($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