/[Frey]/trunk/lib/Frey/Action.pm
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Contents of /trunk/lib/Frey/Action.pm

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Revision 940 - (show annotations)
Tue Jan 6 13:18:43 2009 UTC (15 years, 3 months ago) by dpavlin
File size: 7196 byte(s)
implement render_column as type of field to render in params form
1 package Frey::Action;
2 use Moose;
3 extends 'Frey::PPI';
4 with 'Frey::Web';
5 with 'Frey::Config';
6
7 use Clone qw/clone/;
8 use Data::Dump qw/dump/;
9
10 =head1 DESCRIPTION
11
12 Invoke any L<Frey> object creating html for with various default parameters
13 if not supplied at invocation.
14
15 You can force rendering of fields if you define C<render_attribute> sub with
16 desired rendering as in:
17
18 sub render_pipe { 'radio' }
19
20 =cut
21
22 has 'class' => (
23 is => 'rw',
24 isa => 'Str',
25 required => 1,
26 );
27
28 has 'params' => (
29 is => 'rw',
30 isa => 'HashRef',
31 default => sub { {} },
32 );
33
34 has 'input_step_size' => (
35 documentation => 'Resize input fields by this step',
36 is => 'rw',
37 isa => 'Int',
38 # required => 1,
39 default => 20,
40 );
41
42 =head2 required
43
44 my @required_attributes = $self->required;
45 my $required_attributes = $self->required;
46
47 =cut
48
49 sub required {
50 my ( $self ) = @_;
51 $self->load_class( $self->class );
52
53 my @required =
54 grep {
55 defined $_ && $_->can('name') &&
56 ! defined( $self->params->{ $_->name } ) &&
57 ! $_->is_lazy
58 }
59 map {
60 my $attr = $self->class->meta->get_attribute($_);
61 blessed $attr && $attr->is_required && $attr;
62 } $self->class->meta->get_attribute_list;
63
64 warn "## required = ",dump( map { $_->name } @required ), " for ", $self->class if @required && $self->debug;
65 return @required if wantarray;
66 return \@required;
67 }
68
69 =head2 attributes
70
71 Generated from attributes specified in code (extracted using L<Frey::PPI>)
72 and required atributes
73
74 my @class_attributes = $self->attributes;
75 my @class_attributes = $self->attributes;
76
77 =cut
78
79 sub attributes {
80 my ( $self ) = @_;
81 my $a;
82 my @attrs = @{ $self->attribute_order };
83 @attrs = map { $a->{$_}++; $_ } @attrs;
84 push @attrs, $_ foreach grep { ! $a->{$_} } map { $_->name } @{ $self->required };
85 warn "# attributes = ",dump( @attrs ) if $self->debug;
86 return @attrs if wantarray;
87 return \@attrs;
88 }
89
90 =head2 params_form
91
92 my $html = $self->params_form;
93 my ($html,$default_params) = $self->params_form;
94
95 =cut
96
97 sub params_form {
98 my ( $self ) = @_;
99 my @required = $self->required;
100 if ( ! @required ) {
101 warn "all params available ", dump( $self->params ), " not creating form" if $self->debug;
102 return (undef,$self->params) if wantarray;
103 return;
104 } else {
105 warn $self->class, " required params ", map { $_->dump(2) } @required if $self->debug;
106 }
107
108 my $class = $self->class;
109
110 $self->load_class( $class );
111
112 my $default = clone $self->params; # XXX we really don't want to modify params!
113
114 my $params_config = {};
115 $params_config = $self->config($class);
116 warn "# $class config = ",dump( $params_config ) if $self->debug;
117
118 my $form;
119
120 sub select_values {
121 my ( $name, $attr_type, $values ) = @_;
122
123 my $max_value_len = 0;
124 my @values;
125 my $html = '';
126
127 foreach ( @$values ) {
128 my $v = ref($_) eq 'HASH' ? $_->{$name} : $_;
129 warn "## value '$v'";
130 push @values, $v;
131 $max_value_len = length($v) if length($v) > $max_value_len;
132 }
133
134 warn "# max_value_len: $max_value_len";
135 my $render = eval $class . '->render_' . $name;
136 warn "## render $@";
137
138 if ( $#values > 3 && $render !~ m{radio} ) {
139 my $options = join("\n",
140 map {
141 qq|<option value="$_">$_</option>|;
142 } @values
143 );
144 # onchange="alert(this.options[this.selectedIndex].value);"
145 $html = qq|
146 <select title="$attr_type" name="$name">
147 $options
148 </select>
149 | if $options;
150 } else {
151 my $delimiter = $max_value_len > $self->input_step_size ? qq|<br>| : '';
152 my $radio =
153 # $delimiter .
154 join("\n",
155 map { strip(qq|
156 <span title="$attr_type">
157 <input type="radio" name="$name" value="$_">
158 $_
159 </span>
160 $delimiter
161 |) } @values
162 );
163 $html = qq|<div style="display: block;">$radio</div>|;
164 }
165
166 return
167 # qq|<input type="text" name="$name">| .
168 $html
169 }
170
171 foreach my $checkbox ( split(/\s+/, $default->{'frey-checkboxes'} ) ) {
172 next if defined $default->{ $checkbox };
173
174 $default->{ $checkbox } = 0;
175 $self->params->{ $checkbox } = 0;
176 warn "# checkbox $checkbox not ticked";
177 }
178
179 my @checkboxes;
180
181 my $label_width = 1; # minimum
182
183 foreach my $name (
184 grep {
185 die "$_ doesn't have meta" unless $class->can('meta');
186 ! $class->meta->get_attribute($_)->is_lazy
187 && ! defined $default->{$_}
188 && ! m{^_} # skip _private
189 } $self->attributes
190 ) {
191 my $attr_type = '';
192 my $type = $name =~ m/^pass/ ? 'password' : 'text';
193 my $label = $name;
194 my $label_title = '';
195 my $value_html = '';
196
197 my $attr = $class->meta->get_attribute( $name );
198 $attr_type = $attr->type_constraint->name if $attr->has_type_constraint;
199
200 my $value =
201 defined $default->{$name} ? $default->{$name} :
202 $attr->has_default ? $attr->default( $name ) :
203 '';
204
205 if ( ref($params_config) eq 'HASH' && defined $params_config->{$name} ) {
206 $value = $params_config->{$name};
207 } elsif ( ref($params_config) eq 'ARRAY' ) {
208 $value_html = select_values( $name, $attr_type, $params_config );
209 $default->{$name} = $params_config->[0]->{$name};
210 } elsif ( $attr->has_type_constraint && $attr->type_constraint->can('values') ) {
211 $value_html = select_values( $name, $attr_type, $attr->type_constraint->values );
212 } elsif ( $attr_type =~ m{^Bool} ) {
213 my $suffix = '';
214 $suffix = ' checked' if $value;
215 $value_html = qq|<input type="checkbox" name="$name" title="$attr_type" value="$value"$suffix>|;
216 push @checkboxes, $name;
217 } elsif ( ! defined $value ) {
218 $value_html = qq|<tt id="$name">undef</tt><!-- $name = undef -->|; # FIXME if $self->debug
219 } elsif ( $attr_type !~ m{^(Str|Int)$} || $value =~ $Frey::Web::re_html || $name =~ m{text} ) {
220 $value_html = qq|<textarea name="$name" title="$attr_type">$value</textarea>|;
221 }
222
223 $label_title = qq| title="| . $attr->documentation . qq|"| if $attr->has_documentation;
224
225 $default->{$name} = $value unless defined $default->{$name};
226
227 my $size = ( int( length($value) / $self->input_step_size ) + 1 ) * $self->input_step_size;
228 $value_html = qq|<input type="$type" name="$name" title="$attr_type" value="$value" size="$size">| unless $value_html;
229
230 # warn "# required $name ", $class->meta->get_attribute( $name )->dump( 2 );
231 $form .= qq|<label for="$name"$label_title>$label</label>$value_html<br>|;
232 my $ll = length($label);
233 $label_width = $ll if $ll > $label_width;
234 }
235 $form .= qq|<input type="hidden" name="frey-checkboxes" value="| . join(' ', @checkboxes) . qq|">| if @checkboxes;
236
237 $self->add_css(qq|
238 label,input {
239 display: block;
240 float: left;
241 margin-bottom: 10px;
242 }
243
244 label {
245 text-align: right;
246 width: ${label_width}ex;
247 padding-right: 20px;
248 }
249
250 br {
251 clear: left;
252 }
253 |);
254
255 my $html;
256
257 # http://www.quirksmode.org/oddsandends/forms.html
258 # $form =~ s{<([^>]+)(name=")([^"]+)(")([^>]*)>}{<$1$2$3$4 id="$3" $5}gs;
259
260 $html = qq|
261 <h1>$class params</h1>
262 <form method="post">
263 $form
264 <input type="submit" value="Run $class">
265 </form>
266 | if $form;
267
268 $self->add_status({
269 $self->class => {
270 params => $self->params,
271 params_config => $params_config,
272 default => $default,
273 },
274 });
275
276 return ($html,$default) if wantarray;
277 return $html;
278 }
279
280 =head1 SEE ALSO
281
282 L<http://www.quirksmode.org/css/forms.html> for info on CSS2 forms
283
284 =cut
285
286 1;

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