use warnings;
use strict;
-use IkiWiki;
+use IkiWiki 3.00;
-# Here's the javascript that makes this possible. A key feature is the use
-# of css to hide toggleables, to avoid any flashing on page load. The css
-# is only emitted after the javascript tests that it's going to be able to
-# show the toggleables.
-my $javascript=<<'EOF';
-<script type="text/javascript">
-<!--
-if (document.getElementById && document.getElementsByTagName && document.createTextNode) {
- document.write('<style type="text/css">div.toggleable { display: none; }</style>');
- window.onload = inittoggle;
+sub import {
+ add_underlay("javascript");
+ hook(type => "getsetup", id => "toggle", call => \&getsetup);
+ hook(type => "preprocess", id => "toggle",
+ call => \&preprocess_toggle);
+ hook(type => "preprocess", id => "toggleable",
+ call => \&preprocess_toggleable);
+ hook(type => "format", id => "toggle", call => \&format);
}
-function inittoggle() {
- var as = getElementsByClass('toggle');
- for (var i = 0; i < as.length; i++) {
- var id = as[i].href.match(/#(\w.+)/)[1];
- document.getElementById(id).style.display="none";
- as[i].onclick = function() {
- toggle(this);
- return false;
- }
- }
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ section => "widget",
+ },
}
-function toggle(s) {
- var id = s.href.match(/#(\w.+)/)[1];
- style = document.getElementById(id).style;
- if (style.display == "none")
- style.display = "block";
- else
- style.display = "none";
-}
+sub genid ($$) {
+ my $page=shift;
+ my $id=shift;
-function getElementsByClass(class) {
- var ret = new Array();
- var pattern = new RegExp("(^|\\s)"+class+"(\\s|$)");
- var els = document.getElementsByTagName('*');
- for (i = 0, j = 0; i < els.length; i++) {
- if ( pattern.test(els[i].className) ) {
- ret[j] = els[i];
- j++;
- }
+ $id="$page.$id";
+
+ # make it a legal html id attribute
+ $id=~s/[^-a-zA-Z0-9.]/-/g;
+ if ($id !~ /^[a-zA-Z]/) {
+ $id="id$id";
}
- return ret;
+ return $id;
}
-//-->
-</script>
-EOF
-
-sub import { #{{{
- hook(type => "preprocess", id => "toggle",
- call => \&preprocess_toggle);
- hook(type => "preprocess", id => "toggleable",
- call => \&preprocess_toggleable, scan => 1);
- hook(type => "format", id => "toggle", call => \&format);
-} # }}}
-sub preprocess_toggle (@) { #{{{
+sub preprocess_toggle (@) {
my %params=(id => "default", text => "more", @_);
- return "<a class=\"toggle\" href=\"#$params{page}.$params{id}\">$params{text}</a>";
-} # }}}
+ my $id=genid($params{page}, $params{id});
+ return "<a class=\"toggle\" href=\"#$id\">$params{text}</a>";
+}
-sub preprocess_toggleable (@) { #{{{
- my %params=(id => "default", text => "", @_);
+sub preprocess_toggleable (@) {
+ my %params=(id => "default", text => "", open => "no", @_);
# Preprocess the text to expand any preprocessor directives
- # embedded inside it. This is why scan is set for this preprocessor
- # directive, since it could expand to something with a link in it.
+ # embedded inside it.
$params{text}=IkiWiki::preprocess($params{page}, $params{destpage}, $params{text});
+
+ my $id=genid($params{page}, $params{id});
+ my $class=(lc($params{open}) ne "yes") ? "toggleable" : "toggleable-open";
# Should really be a postprocessor directive, oh well. Work around
- # markdown's dislike of markdown inside a <div>.
- return "<div class=\"toggleable\" id=\"$params{page}.$params{id}\"></div>\n\n$params{text}<div class=\"toggleableend\"></div>";
-} # }}}
+ # markdown's dislike of markdown inside a <div> with various funky
+ # whitespace.
+ my ($indent)=$params{text}=~/( +)$/;
+ $indent="" unless defined $indent;
+ return "<div class=\"$class\" id=\"$id\"></div>\n\n$params{text}\n$indent<div class=\"toggleableend\"></div>";
+}
-sub format (@) { #{{{
+sub format (@) {
my %params=@_;
- if ($params{content}=~s!(<div class="toggleable" id="[^"]+">)</div>!$1!g) {
+ if ($params{content}=~s!(<div class="toggleable(?:-open)?" id="[^"]+">\s*)</div>!$1!g) {
$params{content}=~s/<div class="toggleableend">//g;
- $params{content}=~s!^<\/body>!$javascript</body>!m;
+ if (! ($params{content}=~s!^(<body[^>]*>)!$1.include_javascript($params{page})!em)) {
+ # no <body> tag, probably in preview mode
+ $params{content}=include_javascript($params{page}, 1).$params{content};
+ }
}
return $params{content};
-} # }}}
+}
+
+sub include_javascript ($;$) {
+ my $page=shift;
+ my $absolute=shift;
+
+ return '<script src="'.urlto("ikiwiki/ikiwiki.js", $page, $absolute).
+ '" type="text/javascript" charset="utf-8"></script>'."\n".
+ '<script src="'.urlto("ikiwiki/toggle.js", $page, $absolute).
+ '" type="text/javascript" charset="utf-8"></script>';
+}
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