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package SL::Template::Plugin::L;
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use base qw( Template::Plugin );
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use Template::Plugin;
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use List::MoreUtils qw(apply);
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use List::Util qw(max);
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use strict;
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{ # This will give you an id for identifying html tags and such.
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# It's guaranteed to be unique unless you exceed 10 mio calls per request.
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# Do not use these id's to store information across requests.
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my $_id_sequence = int rand 1e7;
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sub _tag_id {
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return $_id_sequence = ($_id_sequence + 1) % 1e7;
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}
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}
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sub _H {
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my $string = shift;
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return $::locale->quote_special_chars('HTML', $string);
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}
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sub _J {
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my $string = "" . shift;
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$string =~ s/\"/\\\"/g;
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return $string;
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}
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sub _hashify {
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return (@_ && (ref($_[0]) eq 'HASH')) ? %{ $_[0] } : @_;
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}
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sub new {
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my ($class, $context, @args) = @_;
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return bless {
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CONTEXT => $context,
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}, $class;
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}
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sub _context {
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die 'not an accessor' if @_ > 1;
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return $_[0]->{CONTEXT};
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}
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sub name_to_id {
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my $self = shift;
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my $name = shift;
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$name =~ s/[^\w_]/_/g;
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$name =~ s/_+/_/g;
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return $name;
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}
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sub attributes {
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my ($self, @slurp) = @_;
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my %options = _hashify(@slurp);
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my @result = ();
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while (my ($name, $value) = each %options) {
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next unless $name;
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next if $name eq 'disabled' && !$value;
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$value = '' if !defined($value);
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push @result, _H($name) . '="' . _H($value) . '"';
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}
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return @result ? ' ' . join(' ', @result) : '';
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}
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sub html_tag {
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my ($self, $tag, $content, @slurp) = @_;
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my $attributes = $self->attributes(@slurp);
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return "<${tag}${attributes}/>" unless defined($content);
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return "<${tag}${attributes}>${content}</${tag}>";
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}
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sub select_tag {
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my $self = shift;
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my $name = shift;
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my $options_str = shift;
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my %attributes = _hashify(@_);
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$attributes{id} ||= $self->name_to_id($name);
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$options_str = $self->options_for_select($options_str) if ref $options_str;
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return $self->html_tag('select', $options_str, %attributes, name => $name);
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}
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sub textarea_tag {
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my ($self, $name, $content, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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$attributes{id} ||= $self->name_to_id($name);
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$content = $content ? _H($content) : '';
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return $self->html_tag('textarea', $content, %attributes, name => $name);
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}
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sub checkbox_tag {
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my ($self, $name, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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$attributes{id} ||= $self->name_to_id($name);
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$attributes{value} = 1 unless defined $attributes{value};
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my $label = delete $attributes{label};
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if ($attributes{checked}) {
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$attributes{checked} = 'checked';
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} else {
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delete $attributes{checked};
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}
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my $code = $self->html_tag('input', undef, %attributes, name => $name, type => 'checkbox');
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$code .= $self->html_tag('label', $label, for => $attributes{id}) if $label;
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return $code;
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}
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sub radio_button_tag {
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my $self = shift;
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my $name = shift;
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my %attributes = _hashify(@_);
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$attributes{value} = 1 unless defined $attributes{value};
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$attributes{id} ||= $self->name_to_id($name . "_" . $attributes{value});
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my $label = delete $attributes{label};
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if ($attributes{checked}) {
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$attributes{checked} = 'checked';
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} else {
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delete $attributes{checked};
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}
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my $code = $self->html_tag('input', undef, %attributes, name => $name, type => 'radio');
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$code .= $self->html_tag('label', $label, for => $attributes{id}) if $label;
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return $code;
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}
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sub input_tag {
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my ($self, $name, $value, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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$attributes{id} ||= $self->name_to_id($name);
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$attributes{type} ||= 'text';
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return $self->html_tag('input', undef, %attributes, name => $name, value => $value);
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}
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sub hidden_tag {
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return shift->input_tag(@_, type => 'hidden');
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}
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sub div_tag {
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my ($self, $content, @slurp) = @_;
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return $self->html_tag('div', $content, @slurp);
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}
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sub ul_tag {
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my ($self, $content, @slurp) = @_;
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return $self->html_tag('ul', $content, @slurp);
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}
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sub li_tag {
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my ($self, $content, @slurp) = @_;
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return $self->html_tag('li', $content, @slurp);
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}
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sub link {
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my ($self, $href, $content, @slurp) = @_;
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my %params = _hashify(@slurp);
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$href ||= '#';
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return $self->html_tag('a', $content, %params, href => $href);
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}
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sub submit_tag {
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my ($self, $name, $value, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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$attributes{onclick} = "if (confirm('" . delete($attributes{confirm}) . "')) return true; else return false;" if $attributes{confirm};
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return $self->input_tag($name, $value, %attributes, type => 'submit', class => 'submit');
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}
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sub button_tag {
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my ($self, $onclick, $value, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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return $self->input_tag(undef, $value, %attributes, type => 'button', onclick => $onclick);
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}
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sub options_for_select {
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my $self = shift;
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my $collection = shift;
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my %options = _hashify(@_);
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my $value_key = $options{value} || 'id';
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my $title_key = $options{title} || $value_key;
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my $value_sub = $options{value_sub};
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my $title_sub = $options{title_sub};
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my $value_title_sub = $options{value_title_sub};
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my %selected = map { ( $_ => 1 ) } @{ ref($options{default}) eq 'ARRAY' ? $options{default} : $options{default} ? [ $options{default} ] : [] };
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my $access = sub {
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my ($element, $index, $key, $sub) = @_;
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my $ref = ref $element;
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return $sub ? $sub->($element)
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: !$ref ? $element
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: $ref eq 'ARRAY' ? $element->[$index]
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: $ref eq 'HASH' ? $element->{$key}
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: $element->$key;
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};
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my @elements = ();
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push @elements, [ undef, $options{empty_title} || '' ] if $options{with_empty};
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push @elements, map [
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$value_title_sub ? $value_title_sub->($_) : (
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$access->($_, 0, $value_key, $value_sub),
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$access->($_, 1, $title_key, $title_sub),
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)
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], @{ $collection } if $collection && ref $collection eq 'ARRAY';
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my $code = '';
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foreach my $result (@elements) {
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my %attributes = ( value => $result->[0] );
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$attributes{selected} = 'selected' if $selected{ $result->[0] || '' };
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$code .= $self->html_tag('option', _H($result->[1]), %attributes);
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}
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return $code;
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}
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sub javascript {
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my ($self, $data) = @_;
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return $self->html_tag('script', $data, type => 'text/javascript');
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}
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sub stylesheet_tag {
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my $self = shift;
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my $code = '';
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foreach my $file (@_) {
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$file .= '.css' unless $file =~ m/\.css$/;
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$file = "css/${file}" unless $file =~ m|/|;
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$code .= qq|<link rel="stylesheet" href="${file}" type="text/css" media="screen" />|;
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}
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return $code;
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}
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sub date_tag {
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my ($self, $name, $value, @slurp) = @_;
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my %params = _hashify(@slurp);
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my $name_e = _H($name);
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my $seq = _tag_id();
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my $datefmt = apply {
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s/d+/\%d/gi;
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s/m+/\%m/gi;
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s/y+/\%Y/gi;
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} $::myconfig{"dateformat"};
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$params{cal_align} ||= 'BR';
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$self->input_tag($name, $value,
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id => $name_e,
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size => 11,
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title => _H($::myconfig{dateformat}),
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onBlur => 'check_right_date_format(this)',
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%params,
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) . ((!$params{no_cal}) ?
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$self->html_tag('img', undef,
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src => 'image/calendar.png',
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id => "trigger$seq",
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title => _H($::myconfig{dateformat}),
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%params,
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) .
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$self->javascript(
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"Calendar.setup({ inputField: '$name_e', ifFormat: '$datefmt', align: '$params{cal_align}', button: 'trigger$seq' });"
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) : '');
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}
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sub javascript_tag {
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my $self = shift;
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my $code = '';
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foreach my $file (@_) {
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$file .= '.js' unless $file =~ m/\.js$/;
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$file = "js/${file}" unless $file =~ m|/|;
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$code .= qq|<script type="text/javascript" src="${file}"></script>|;
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}
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return $code;
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}
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sub tabbed {
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my ($self, $tabs, @slurp) = @_;
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my %params = _hashify(@slurp);
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my $id = $params{id} || 'tab_' . _tag_id();
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$params{selected} *= 1;
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die 'L.tabbed needs an arrayred of tabs for first argument'
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unless ref $tabs eq 'ARRAY';
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my (@header, @blocks);
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for my $i (0..$#$tabs) {
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my $tab = $tabs->[$i];
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next if $tab eq '';
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my $selected = $params{selected} == $i;
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my $tab_id = "__tab_id_$i";
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push @header, $self->li_tag(
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$self->link('', $tab->{name}, rel => $tab_id),
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($selected ? (class => 'selected') : ())
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);
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push @blocks, $self->div_tag($tab->{data},
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id => $tab_id, class => 'tabcontent');
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}
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return '' unless @header;
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return $self->ul_tag(
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join('', @header), id => $id, class => 'shadetabs'
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) .
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$self->div_tag(
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join('', @blocks), class => 'tabcontentstyle'
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) .
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$self->javascript(
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qq|var $id = new ddtabcontent("$id");$id.setpersist(true);| .
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qq|$id.setselectedClassTarget("link");$id.init();|
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);
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}
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sub tab {
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my ($self, $name, $src, @slurp) = @_;
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my %params = _hashify(@slurp);
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$params{method} ||= 'process';
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return () if defined $params{if} && !$params{if};
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my $data;
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if ($params{method} eq 'raw') {
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$data = $src;
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} elsif ($params{method} eq 'process') {
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$data = $self->_context->process($src, %{ $params{args} || {} });
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} else {
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die "unknown tag method '$params{method}'";
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}
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return () unless $data;
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return +{ name => $name, data => $data };
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}
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sub areainput_tag {
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my ($self, $name, $value, @slurp) = @_;
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my %attributes = _hashify(@slurp);
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my $rows = delete $attributes{rows} || 1;
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my $min = delete $attributes{min_rows} || 1;
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return $rows > 1
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? $self->textarea_tag($name, $value, %attributes, rows => max $rows, $min)
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: $self->input_tag($name, $value, %attributes);
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}
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sub multiselect2side {
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my ($self, $id, @slurp) = @_;
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my %params = _hashify(@slurp);
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$params{labelsx} = "\"" . _J($params{labelsx} || $::locale->text('Available')) . "\"";
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$params{labeldx} = "\"" . _J($params{labeldx} || $::locale->text('Selected')) . "\"";
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$params{moveOptions} = 'false';
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my $vars = join(', ', map { "${_}: " . $params{$_} } keys %params);
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my $code = <<EOCODE;
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<script type="text/javascript">
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\$().ready(function() {
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\$('#${id}').multiselect2side({ ${vars} });
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});
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</script>
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EOCODE
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return $code;
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}
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sub dump {
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my $self = shift;
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require Data::Dumper;
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return '<pre>' . Data::Dumper::Dumper(@_) . '</pre>';
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}
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1;
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__END__
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=head1 NAME
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SL::Templates::Plugin::L -- Layouting / tag generation
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=head1 SYNOPSIS
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Usage from a template:
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[% USE L %]
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[% L.select_tag('direction', [ [ 'left', 'To the left' ], [ 'right', 'To the right' ] ]) %]
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[% L.select_tag('direction', L.options_for_select([ { direction => 'left', display => 'To the left' },
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{ direction => 'right', display => 'To the right' } ],
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value => 'direction', title => 'display', default => 'right')) %]
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=head1 DESCRIPTION
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A module modeled a bit after Rails' ActionView helpers. Several small
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functions that create HTML tags from various kinds of data sources.
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=head1 FUNCTIONS
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=head2 LOW-LEVEL FUNCTIONS
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=over 4
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=item C<name_to_id $name>
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Converts a name to a HTML id by replacing various characters.
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=item C<attributes %items>
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Creates a string from all elements in C<%items> suitable for usage as
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HTML tag attributes. Keys and values are HTML escaped even though keys
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must not contain non-ASCII characters for browsers to accept them.
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=item C<html_tag $tag_name, $content_string, %attributes>
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Creates an opening and closing HTML tag for C<$tag_name> and puts
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C<$content_string> between the two. If C<$content_string> is undefined
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or empty then only a E<lt>tag/E<gt> tag will be created. Attributes
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are key/value pairs added to the opening tag.
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C<$content_string> is not HTML escaped.
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=back
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=head2 HIGH-LEVEL FUNCTIONS
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=over 4
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=item C<select_tag $name, $options_string, %attributes>
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Creates a HTML 'select' tag named C<$name> with the contents
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C<$options_string> and with arbitrary HTML attributes from
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C<%attributes>. The tag's C<id> defaults to C<name_to_id($name)>.
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The C<$options_string> is usually created by the
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L</options_for_select> function. If C<$options_string> is an array
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reference then it will be passed to L</options_for_select>
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automatically.
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=item C<input_tag $name, $value, %attributes>
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Creates a HTML 'input type=text' tag named C<$name> with the value
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C<$value> and with arbitrary HTML attributes from C<%attributes>. The
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tag's C<id> defaults to C<name_to_id($name)>.
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=item C<hidden_tag $name, $value, %attributes>
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Creates a HTML 'input type=hidden' tag named C<$name> with the value
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C<$value> and with arbitrary HTML attributes from C<%attributes>. The
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tag's C<id> defaults to C<name_to_id($name)>.
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=item C<submit_tag $name, $value, %attributes>
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Creates a HTML 'input type=submit class=submit' tag named C<$name> with the
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value C<$value> and with arbitrary HTML attributes from C<%attributes>. The
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tag's C<id> defaults to C<name_to_id($name)>.
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If C<$attributes{confirm}> is set then a JavaScript popup dialog will
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be added via the C<onclick> handler asking the question given with
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C<$attributes{confirm}>. If request is only submitted if the user
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clicks the dialog's ok/yes button.
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=item C<textarea_tag $name, $value, %attributes>
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Creates a HTML 'textarea' tag named C<$name> with the content
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C<$value> and with arbitrary HTML attributes from C<%attributes>. The
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tag's C<id> defaults to C<name_to_id($name)>.
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=item C<checkbox_tag $name, %attributes>
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Creates a HTML 'input type=checkbox' tag named C<$name> with arbitrary
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HTML attributes from C<%attributes>. The tag's C<id> defaults to
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C<name_to_id($name)>. The tag's C<value> defaults to C<1>.
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If C<%attributes> contains a key C<label> then a HTML 'label' tag is
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created with said C<label>. No attribute named C<label> is created in
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that case.
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=item C<date_tag $name, $value, cal_align =E<gt> $align_code, %attributes>
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Creates a date input field, with an attached javascript that will open a
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calendar on click. The javascript ist by default anchoered at the bottom right
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sight. This can be overridden with C<cal_align>, see Calendar documentation for
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the details, usually you'll want a two letter abbreviation of the alignment.
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Right + Bottom becomes C<BL>.
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=item C<radio_button_tag $name, %attributes>
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Creates a HTML 'input type=radio' tag named C<$name> with arbitrary
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HTML attributes from C<%attributes>. The tag's C<value> defaults to
|
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C<1>. The tag's C<id> defaults to C<name_to_id($name . "_" . $value)>.
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|
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If C<%attributes> contains a key C<label> then a HTML 'label' tag is
|
|
created with said C<label>. No attribute named C<label> is created in
|
|
that case.
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|
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=item C<javascript_tag $file1, $file2, $file3...>
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|
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Creates a HTML 'E<lt>script type="text/javascript" src="..."E<gt>'
|
|
tag for each file name parameter passed. Each file name will be
|
|
postfixed with '.js' if it isn't already and prefixed with 'js/' if it
|
|
doesn't contain a slash.
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|
|
|
=item C<stylesheet_tag $file1, $file2, $file3...>
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|
|
|
Creates a HTML 'E<lt>link rel="text/stylesheet" href="..."E<gt>' tag
|
|
for each file name parameter passed. Each file name will be postfixed
|
|
with '.css' if it isn't already and prefixed with 'css/' if it doesn't
|
|
contain a slash.
|
|
|
|
=item C<date_tag $name, $value, cal_align =E<gt> $align_code, %attributes>
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|
|
Creates a date input field, with an attached javascript that will open a
|
|
calendar on click. The javascript ist by default anchoered at the bottom right
|
|
sight. This can be overridden with C<cal_align>, see Calendar documentation for
|
|
the details, usually you'll want a two letter abbreviation of the alignment.
|
|
Right + Bottom becomes C<BL>.
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|
|
=item C<tabbed \@tab, %attributes>
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|
|
|
Will create a tabbed area. The tabs should be created with the helper function
|
|
C<tab>. Example:
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|
|
|
[% L.tabbed([
|
|
L.tab(LxERP.t8('Basic Data'), 'part/_main_tab.html'),
|
|
L.tab(LxERP.t8('Custom Variables'), 'part/_cvar_tab.html', if => SELF.display_cvar_tab),
|
|
]) %]
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|
|
|
An optional attribute is C<selected>, which accepts the ordinal of a tab which
|
|
should be selected by default.
|
|
|
|
=item C<areainput_tag $name, $content, %PARAMS>
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|
|
|
Creates a generic input tag or textarea tag, depending on content size. The
|
|
mount of desired rows must be given with C<rows> parameter, Accpeted parameters
|
|
include C<min_rows> for rendering a minimum of rows if a textarea is displayed.
|
|
|
|
You can force input by setting rows to 1, and you can force textarea by setting
|
|
rows to anything >1.
|
|
|
|
=item C<multiselect2side $id, %params>
|
|
|
|
Creates a JavaScript snippet calling the jQuery function
|
|
C<multiselect2side> on the select control with the ID C<$id>. The
|
|
select itself is not created. C<%params> can contain the following
|
|
entries:
|
|
|
|
=over 2
|
|
|
|
=item C<labelsx>
|
|
|
|
The label of the list of available options. Defaults to the
|
|
translation of 'Available'.
|
|
|
|
=item C<labeldx>
|
|
|
|
The label of the list of selected options. Defaults to the
|
|
translation of 'Selected'.
|
|
|
|
=back
|
|
|
|
=item C<dump REF>
|
|
|
|
Dumps the Argument using L<Data::Dumper> into a E<lt>preE<gt> block.
|
|
|
|
=back
|
|
|
|
=head2 CONVERSION FUNCTIONS
|
|
|
|
=over 4
|
|
|
|
=item C<options_for_select \@collection, %options>
|
|
|
|
Creates a string suitable for a HTML 'select' tag consisting of one
|
|
'E<lt>optionE<gt>' tag for each element in C<\@collection>. The value
|
|
to use and the title to display are extracted from the elements in
|
|
C<\@collection>. Each element can be one of four things:
|
|
|
|
=over 12
|
|
|
|
=item 1. An array reference with at least two elements. The first element is
|
|
the value, the second element is its title.
|
|
|
|
=item 2. A scalar. The scalar is both the value and the title.
|
|
|
|
=item 3. A hash reference. In this case C<%options> must contain
|
|
I<value> and I<title> keys that name the keys in the element to use
|
|
for the value and title respectively.
|
|
|
|
=item 4. A blessed reference. In this case C<%options> must contain
|
|
I<value> and I<title> keys that name functions called on the blessed
|
|
reference whose return values are used as the value and title
|
|
respectively.
|
|
|
|
=back
|
|
|
|
For cases 3 and 4 C<$options{value}> defaults to C<id> and
|
|
C<$options{title}> defaults to C<$options{value}>.
|
|
|
|
In addition to pure keys/method you can also provide coderefs as I<value_sub>
|
|
and/or I<title_sub>. If present, these take precedence over keys or methods,
|
|
and are called with the element as first argument. It must return the value or
|
|
title.
|
|
|
|
Lastly a joint coderef I<value_title_sub> may be provided, which in turn takes
|
|
precedence over each individual sub. It will only be called once for each
|
|
element and must return a list of value and title.
|
|
|
|
If the option C<with_empty> is set then an empty element (value
|
|
C<undef>) will be used as the first element. The title to display for
|
|
this element can be set with the option C<empty_title> and defaults to
|
|
an empty string.
|
|
|
|
The option C<default> can be either a scalar or an array reference
|
|
containing the values of the options which should be set to be
|
|
selected.
|
|
|
|
=item C<tab, description, target, %PARAMS>
|
|
|
|
Creates a tab for C<tabbed>. The description will be used as displayed name.
|
|
The target should be a block or template that can be processed. C<tab> supports
|
|
a C<method> parameter, which can override the process method to apply target.
|
|
C<method => 'raw'> will just include the given text as is. I was too lazy to
|
|
implement C<include> properly.
|
|
|
|
Also an C<if> attribute is supported, so that tabs can be suppressed based on
|
|
some occasion. In this case the supplied block won't even get processed, and
|
|
the resulting tab will get ignored by C<tabbed>:
|
|
|
|
L.tab('Awesome tab wih much info', '_much_info.html', if => SELF.wants_all)
|
|
|
|
=back
|
|
|
|
=head1 MODULE AUTHORS
|
|
|
|
Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>
|
|
|
|
L<http://linet-services.de>
|