/[Frey]/branches/zimbardo/lib/Frey/Action.pm
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Annotation of /branches/zimbardo/lib/Frey/Action.pm

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Revision 1161 - (hide annotations)
Thu Jul 2 16:53:39 2009 UTC (14 years, 10 months ago) by dpavlin
Original Path: trunk/lib/Frey/Action.pm
File size: 10258 byte(s)
added form_header and form_footer callbacks
1 dpavlin 369 package Frey::Action;
2     use Moose;
3     extends 'Frey::PPI';
4 dpavlin 1133 with 'Frey::Web', 'Frey::Config';
5 dpavlin 369
6 dpavlin 386 use Clone qw/clone/;
7 dpavlin 369 use Data::Dump qw/dump/;
8    
9     =head1 DESCRIPTION
10    
11     Invoke any L<Frey> object creating html for with various default parameters
12     if not supplied at invocation.
13    
14 dpavlin 940 You can force rendering of fields if you define C<render_attribute> sub with
15     desired rendering as in:
16    
17     sub render_pipe { 'radio' }
18    
19 dpavlin 369 =cut
20    
21     has 'class' => (
22     is => 'rw',
23     isa => 'Str',
24     required => 1,
25     );
26    
27     has 'params' => (
28     is => 'rw',
29     isa => 'HashRef',
30     default => sub { {} },
31     );
32    
33 dpavlin 782 has 'input_step_size' => (
34 dpavlin 780 documentation => 'Resize input fields by this step',
35     is => 'rw',
36     isa => 'Int',
37     # required => 1,
38     default => 20,
39     );
40    
41 dpavlin 369 =head2 required
42    
43     my @required_attributes = $self->required;
44     my $required_attributes = $self->required;
45 dpavlin 975 my $required_hash = $self->required('as_hash');
46 dpavlin 369
47     =cut
48    
49     sub required {
50 dpavlin 975 my ($self,$param) = @_;
51 dpavlin 369 $self->load_class( $self->class );
52 dpavlin 731
53 dpavlin 369 my @required =
54 dpavlin 435 grep {
55 dpavlin 469 defined $_ && $_->can('name') &&
56     ! defined( $self->params->{ $_->name } ) &&
57     ! $_->is_lazy
58 dpavlin 435 }
59 dpavlin 430 map {
60 dpavlin 435 my $attr = $self->class->meta->get_attribute($_);
61 dpavlin 440 blessed $attr && $attr->is_required && $attr;
62 dpavlin 369 } $self->class->meta->get_attribute_list;
63    
64 dpavlin 975 @required = map { $_->name } @required;
65     warn "## required = ",dump( @required ), " for ", $self->class if @required && $self->debug;
66    
67     if ( $param eq 'as_hash' ) {
68     my $hash;
69     map { $hash->{$_}++ } @required;
70     return $hash;
71     }
72 dpavlin 369 return @required if wantarray;
73     return \@required;
74     }
75    
76     =head2 attributes
77    
78     Generated from attributes specified in code (extracted using L<Frey::PPI>)
79     and required atributes
80    
81     my @class_attributes = $self->attributes;
82     my @class_attributes = $self->attributes;
83    
84     =cut
85    
86     sub attributes {
87     my ( $self ) = @_;
88     my $a;
89     my @attrs = @{ $self->attribute_order };
90     @attrs = map { $a->{$_}++; $_ } @attrs;
91 dpavlin 975 push @attrs, $_ foreach grep { ! $a->{$_} } @{ $self->required };
92 dpavlin 386 warn "# attributes = ",dump( @attrs ) if $self->debug;
93 dpavlin 369 return @attrs if wantarray;
94     return \@attrs;
95     }
96    
97     =head2 params_form
98    
99 dpavlin 386 my $html = $self->params_form;
100     my ($html,$default_params) = $self->params_form;
101 dpavlin 369
102     =cut
103    
104 dpavlin 1113 sub form_id {
105     my ($self) = @_;
106     my $form_id = $self->class;
107     $form_id =~ s{\W+}{_}g;
108     return $form_id;
109     }
110    
111     sub select_values {
112     my ( $self, $name, $attr_type, $values ) = @_;
113    
114     $attr_type ||= '?' and warn "$name doesn't have attr_type";
115    
116     my $form_id = $self->form_id;
117     my $max_value_len = 0;
118     my @values;
119     my $display;
120     my $html = '';
121    
122     foreach ( @$values ) {
123     my $v = ref($_) eq 'HASH' ? $_->{$name} : $_;
124     if ( $v =~ s/\t+(.+)$// ) {
125     $display->{$v} = $1;
126     }
127     warn "## value '$v'";
128     push @values, $v;
129     $max_value_len = length($v) if length($v) > $max_value_len;
130     }
131    
132     warn "# max_value_len: $max_value_len";
133     #my $render = eval $class . '->render_' . $name;
134     my $call = 'render_' . $name;
135 dpavlin 1142 my $render = $self->class->$call if $self->class->can($call);
136 dpavlin 1113 warn "## render $@";
137    
138     if ( $#values > 3 && $render !~ m{radio} ) {
139     my $options = join("\n",
140     map {
141     my $d = $display->{$_} || $_;
142     qq|<option value="$_">$d</option>|;
143     } @values
144     );
145     # onchange="alert(this.options[this.selectedIndex].value);"
146     $html = qq|
147     <select title="$attr_type" name="$name">
148     $options
149     </select>
150     | if $options;
151     } else {
152     my $delimiter = $max_value_len > $self->input_step_size ? qq|<br>| : '';
153     my $radio =
154     # $delimiter .
155     join("\n",
156     map { strip(qq|
157     <span title="$attr_type">
158     <input type="radio" name="$name" value="$_">
159     $_
160     </span>
161     $delimiter
162     |) } @values
163     );
164     if ( $radio ) {
165    
166     my $size = int( $max_value_len / $self->input_step_size ) + 1;
167     $size = 5 if $size > 5;
168     $size *= $self->input_step_size;
169     $radio .= qq|
170     <span>
171     <input type="radio" name="$name" value=" " onclick="document.getElementById('new-$name').focus();" >
172     <input type="text" name="new-$name" id="new-$name" onchange="clear_radio('$form_id','$name'); this.disable = false;" onblur="this.disable = true;" title="enter new value" size="$size">
173     </span>
174     |;
175     }
176     $html = qq|<div style="display: block;">$radio</div>|;
177     }
178    
179 dpavlin 1161 return $html;
180 dpavlin 1113 }
181    
182 dpavlin 369 sub params_form {
183     my ( $self ) = @_;
184 dpavlin 978
185     foreach my $checkbox ( split(/\s+/, $self->params->{'frey-checkboxes'} ) ) {
186     next if defined $self->params->{ $checkbox };
187    
188     $self->params->{ $checkbox } = 0;
189     warn "# checkbox $checkbox not ticked";
190     }
191    
192 dpavlin 975 my $required = $self->required('as_hash');
193     if ( $required ) {
194     warn $self->class, " required params ", dump( keys %$required ) if $self->debug;
195     } else {
196 dpavlin 414 warn "all params available ", dump( $self->params ), " not creating form" if $self->debug;
197 dpavlin 386 return (undef,$self->params) if wantarray;
198 dpavlin 369 return;
199     }
200    
201     my $class = $self->class;
202    
203     $self->load_class( $class );
204    
205 dpavlin 386 my $default = clone $self->params; # XXX we really don't want to modify params!
206 dpavlin 369
207 dpavlin 731 my $params_config = {};
208     $params_config = $self->config($class);
209     warn "# $class config = ",dump( $params_config ) if $self->debug;
210 dpavlin 369
211 dpavlin 386 my $form;
212 dpavlin 1113 my $form_id = $self->form_id;
213 dpavlin 386
214 dpavlin 645 my @checkboxes;
215    
216 dpavlin 731 my $label_width = 1; # minimum
217    
218 dpavlin 1101 my @fields =
219 dpavlin 645 grep {
220 dpavlin 940 die "$_ doesn't have meta" unless $class->can('meta');
221 dpavlin 645 ! $class->meta->get_attribute($_)->is_lazy
222 dpavlin 1108 # && ! defined $default->{$_} # XXX show fields with values
223 dpavlin 715 && ! m{^_} # skip _private
224 dpavlin 1101 } $self->attributes;
225    
226     my $fieldset;
227    
228     my $last;
229     foreach my $name ( @fields ) {
230     my $set = $name;
231     $set =~ s{_[^_]+$}{};
232     push @{ $fieldset->{$set} }, $name;
233     }
234    
235     delete( $fieldset->{$_} )
236     foreach ( grep { $#{ $fieldset->{$_} } == 0 } keys %$fieldset );
237    
238 dpavlin 1108 warn "# fieldset = ",dump( $fieldset );
239 dpavlin 1101
240     foreach my $name ( @fields ) {
241 dpavlin 414 my $attr_type = '';
242 dpavlin 369 my $type = $name =~ m/^pass/ ? 'password' : 'text';
243 dpavlin 372 my $label = $name;
244     my $label_title = '';
245 dpavlin 369 my $value_html = '';
246 dpavlin 504
247     my $attr = $class->meta->get_attribute( $name );
248     $attr_type = $attr->type_constraint->name if $attr->has_type_constraint;
249    
250 dpavlin 645 my $value =
251     defined $default->{$name} ? $default->{$name} :
252     $attr->has_default ? $attr->default( $name ) :
253 dpavlin 978 undef;
254 dpavlin 510
255 dpavlin 783 if ( ref($params_config) eq 'HASH' && defined $params_config->{$name} ) {
256 dpavlin 731 $value = $params_config->{$name};
257     } elsif ( ref($params_config) eq 'ARRAY' ) {
258 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, $params_config );
259 dpavlin 731 $default->{$name} = $params_config->[0]->{$name};
260 dpavlin 504 } elsif ( $attr->has_type_constraint && $attr->type_constraint->can('values') ) {
261 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, $attr->type_constraint->values );
262 dpavlin 1079 } elsif ( $class->can( $name . '_available' ) ) {
263 dpavlin 1142 my $available = $name . '_available';
264     $available = $class->$available;
265 dpavlin 1079 confess $@ if $@;
266     $available =~ s/^\s+//gs;
267     $available =~ s/\s+$//gs;
268 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, [ split(/\n/,$available) ]);
269 dpavlin 640 } elsif ( $attr_type =~ m{^Bool} ) {
270 dpavlin 731 my $suffix = '';
271 dpavlin 978 $suffix = ' checked=1' if $value;
272     $value_html = qq|<input type="checkbox" name="$name" title="$attr_type" value=1$suffix>|;
273 dpavlin 731 push @checkboxes, $name;
274 dpavlin 1085 } elsif ( ! defined $value && ! $required->{$name} ) {
275 dpavlin 731 $value_html = qq|<tt id="$name">undef</tt><!-- $name = undef -->|; # FIXME if $self->debug
276 dpavlin 1119 } elsif ( $attr_type !~ m{^(Str|Int|Email)$} || $value =~ $Frey::Web::re_html || $name =~ m{text} ) {
277 dpavlin 731 $value_html = qq|<textarea name="$name" title="$attr_type">$value</textarea>|;
278 dpavlin 369 }
279 dpavlin 731
280 dpavlin 504 $label_title = qq| title="| . $attr->documentation . qq|"| if $attr->has_documentation;
281 dpavlin 372
282 dpavlin 469 $default->{$name} = $value unless defined $default->{$name};
283    
284 dpavlin 782 my $size = ( int( length($value) / $self->input_step_size ) + 1 ) * $self->input_step_size;
285 dpavlin 780 $value_html = qq|<input type="$type" name="$name" title="$attr_type" value="$value" size="$size">| unless $value_html;
286 dpavlin 372
287 dpavlin 369 # warn "# required $name ", $class->meta->get_attribute( $name )->dump( 2 );
288 dpavlin 975
289 dpavlin 1108 if ( $required->{$name} ) {
290     $label_title .= qq| class="required"|;
291     $value_html =~ s{(<\S+)\s}{$1 class=required };
292     }
293 dpavlin 975
294 dpavlin 1101 my $set = $name;
295     $set =~ s{_[^_]+$}{};
296    
297     my ( $before, $after ) = ( '', '<br>' );
298    
299     if ( my $s = $fieldset->{$set} ) {
300     if ($s->[0] eq $name) {
301     $before = qq|
302     <fieldset>
303     <legend>$set</legend>
304     |;
305     } elsif ( $s->[ -1 ] eq $name ) {
306     $after = qq|
307     </fieldset>
308     |;
309     }
310 dpavlin 1160 $label =~ s{^\Q$set\E_+}{};
311 dpavlin 1101 }
312    
313 dpavlin 1160 $label = $self->_label( $label );
314 dpavlin 1101 $form .= qq|$before<label for="$name"$label_title>$label</label>$value_html $after|;
315 dpavlin 731 my $ll = length($label);
316     $label_width = $ll if $ll > $label_width;
317 dpavlin 369 }
318 dpavlin 645 $form .= qq|<input type="hidden" name="frey-checkboxes" value="| . join(' ', @checkboxes) . qq|">| if @checkboxes;
319    
320 dpavlin 975 $label_width += 2; # XXX padding left+right em
321    
322 dpavlin 950 $self->add_js('static/Frey/Action.js');
323    
324 dpavlin 731 $self->add_css(qq|
325     label,input {
326     display: block;
327     float: left;
328     margin-bottom: 10px;
329     }
330    
331 dpavlin 950 input:focus {
332     border-color: #cc0;
333 dpavlin 975 background: #ffc;
334 dpavlin 950 }
335    
336 dpavlin 731 label {
337     text-align: right;
338     width: ${label_width}ex;
339 dpavlin 975 padding-right: 1ex;
340     white-space: nowrap;
341 dpavlin 731 }
342    
343 dpavlin 975 label.required {
344     font-weight: bold;
345     }
346 dpavlin 1108 input.required,
347     select.required {
348     border-color: #c00;
349     }
350 dpavlin 975
351 dpavlin 731 br {
352     clear: left;
353     }
354 dpavlin 1101
355     fieldset {
356     margin: 0;
357     padding: 0;
358 dpavlin 1102 margin-bottom: 0.5em;
359 dpavlin 1101 }
360 dpavlin 731 |);
361    
362 dpavlin 645 my $html;
363    
364 dpavlin 734 # http://www.quirksmode.org/oddsandends/forms.html
365     # $form =~ s{<([^>]+)(name=")([^"]+)(")([^>]*)>}{<$1$2$3$4 id="$3" $5}gs;
366 dpavlin 731
367 dpavlin 1161 if ( $form ) {
368 dpavlin 645
369 dpavlin 1161 if ( $self->class->can('form_header') ) {
370     $html = $self->class->form_header;
371     } else {
372     $html = qq|
373     <h1>$class params</h1>
374     |;
375     }
376    
377     $html .= qq|
378     <form name="$form_id" id="$form_id" method="post">
379     $form
380     <input type="submit" value="Run $class">
381     </form>
382     |;
383     $html .= $self->class->form_footer if $self->class->can('form_footer');
384     }
385    
386 dpavlin 507 $self->add_status({
387 dpavlin 595 $self->class => {
388 dpavlin 469 params => $self->params,
389 dpavlin 731 params_config => $params_config,
390     default => $default,
391 dpavlin 390 },
392 dpavlin 507 });
393 dpavlin 369
394 dpavlin 386 return ($html,$default) if wantarray;
395 dpavlin 369 return $html;
396     }
397    
398 dpavlin 1160 sub _label {
399     my ($self,$name) = @_;
400     my $labels = $self->class->form_labels if $self->class->can('form_labels');
401     my $label = $labels->{$name};
402     if ( ! defined $label ) {
403     $label = $name;
404     $label =~ s{_}{ }g;
405     }
406     return $label;
407     }
408    
409 dpavlin 731 =head1 SEE ALSO
410    
411     L<http://www.quirksmode.org/css/forms.html> for info on CSS2 forms
412    
413     =cut
414    
415 dpavlin 1133 __PACKAGE__->meta->make_immutable;
416     no Moose;
417    
418 dpavlin 369 1;

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