path: root/doc/todo/tmplvars_plugin.mdwn

A simple plugin to allow per-page customization of a template by passing paramaters to HTML::Template. For those times when a whole pagetemplate is too much work. --Ethan
[[!tags patch]]
#!/usr/bin/perl
package IkiWiki::Plugin::tmplvars;

use warnings;
use strict;
use IkiWiki 2.00;

my %tmplvars;

sub import { #{{{
    hook(type => "preprocess", id => "tmplvars", call => \&preprocess);
    hook(type => "pagetemplate", id => "tmplvars", call => \&pagetemplate);
} # }}}

sub preprocess (@) { #{{{
    my %params=@_;

    if ($params{page} eq $params{destpage}) {
	    my $page = $params{page};
	    if (undef $tmplvars{$page}){
		    $tmplvars{$page} = {};
	    }
	    # XXX: The only way to get at just the user-specified params is
	    # to try to remove all the Ikiwiki-supplied ones.
	    delete $params{page};
	    delete $params{destpage};
	    delete $params{preview};
	    foreach my $arg (keys %params){
		    $tmplvars{$page}->{$arg} = $params{$arg};
	    }
    }

} # }}}

sub pagetemplate (@) { #{{{
        my %params=@_;
        my $template = $params{template};

        if (exists $tmplvars{$params{page}}) {
                foreach my $arg (keys %{$tmplvars{$params{page}}}){
                        $template->param($arg => $tmplvars{$params{page}}->{$arg});
                }
        }

        return undef;
} # }}}

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