76 lines
2.3 KiB
Markdown
76 lines
2.3 KiB
Markdown
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
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[[!tag patch]]
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> The implementation looks fine to me (assuming it works with current ikiwiki),
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> apart from the "XXX" already noted in the patch. The design could reasonably
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> be considered premature generalization, though - how often do you actually
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> need to define new tmplvars?
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>
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> As for the page/destpage/preview thing, it would be good if the preprocess
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> hook could distinguish between software-supplied and user-supplied
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> parameters (the [[plugins/tag]] plugin could benefit from this too). Perhaps
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> the IkiWiki core could be modified so that
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> `hook(type => "preprocess", splitparams => 1, ...)` would invoke preprocess
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> with { page => "foo", destpage => "bar", ... } as a special first argument,
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> and the user-supplied parameters as subsequent arguments? Then plugins like
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> tag could use:
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>
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> my $ikiparams = shift;
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> my %params = @_;
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>
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> add_tags($ikiparams->{page}, keys %params);
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>
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> --[[smcv]]
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----
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#!/usr/bin/perl
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package IkiWiki::Plugin::tmplvars;
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use warnings;
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use strict;
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use IkiWiki 2.00;
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my %tmplvars;
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sub import {
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hook(type => "preprocess", id => "tmplvars", call => \&preprocess);
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hook(type => "pagetemplate", id => "tmplvars", call => \&pagetemplate);
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}
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sub preprocess (@) {
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my %params=@_;
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if ($params{page} eq $params{destpage}) {
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my $page = $params{page};
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if (undef $tmplvars{$page}){
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$tmplvars{$page} = {};
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}
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# XXX: The only way to get at just the user-specified params is
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# to try to remove all the Ikiwiki-supplied ones.
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delete $params{page};
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delete $params{destpage};
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delete $params{preview};
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foreach my $arg (keys %params){
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$tmplvars{$page}->{$arg} = $params{$arg};
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}
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}
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}
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sub pagetemplate (@) {
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my %params=@_;
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my $template = $params{template};
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if (exists $tmplvars{$params{page}}) {
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foreach my $arg (keys %{$tmplvars{$params{page}}}){
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$template->param($arg => $tmplvars{$params{page}}->{$arg});
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}
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}
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return undef;
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}
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