IkiWiki/Plugin/relativedate.pm



#!/usr/bin/perl
package IkiWiki::Plugin::relativedate;

use warnings;
no warnings 'redefine';
use strict;
use IkiWiki 3.00;
use POSIX;
use Encode;

sub import {
    add_underlay("javascript");
    hook(type => "getsetup", id => "relativedate", call => \&getsetup);
    hook(type => "format", id => "relativedate", call => \&format);
    inject(name => "IkiWiki::displaytime", call => \&mydisplaytime);
}

sub getsetup () {
    return
        plugin => {
            safe => 1,
            rebuild => 1,
        },
}

sub format (@) {
        my %params=@_;

    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.js", $page, $absolute).
        '" type="text/javascript" charset="utf-8"></script>'."\n".
        '<script src="'.urlto("relativedate.js", $page, $absolute).
        '" type="text/javascript" charset="utf-8"></script>';
}

sub mydisplaytime ($;$) {
    my $time=shift;
    my $format=shift;

    # This needs to be in a form that can be parsed by javascript.
    # Being fairly human readable is also nice, as it will be exposed
    # as the title if javascript is not available.
    my $gmtime=decode_utf8(POSIX::strftime("%a, %d %b %Y %H:%M:%S %z",
            localtime($time)));

    return '<span class="relativedate" title="'.$gmtime.'">'.
        IkiWiki::formattime($time, $format).'</span>';
}

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