/[Frey]/trunk/lib/Frey/Action.pm
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Revision 1175 - (hide annotations)
Mon Jul 6 20:27:57 2009 UTC (14 years, 9 months ago) by dpavlin
File size: 11257 byte(s)
adaptive length of input type=text on form using new form_value_len
which is implemented by App class
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     ! $_->is_lazy
57 dpavlin 435 }
58 dpavlin 430 map {
59 dpavlin 435 my $attr = $self->class->meta->get_attribute($_);
60 dpavlin 440 blessed $attr && $attr->is_required && $attr;
61 dpavlin 369 } $self->class->meta->get_attribute_list;
62    
63 dpavlin 975 @required = map { $_->name } @required;
64     warn "## required = ",dump( @required ), " for ", $self->class if @required && $self->debug;
65    
66     if ( $param eq 'as_hash' ) {
67     my $hash;
68 dpavlin 1162 map {
69     $hash->{$_} = 1;
70     $hash->{$_} = 0 if defined $self->params->{$_};
71     } @required;
72 dpavlin 975 return $hash;
73     }
74 dpavlin 369 return @required if wantarray;
75     return \@required;
76     }
77    
78     =head2 attributes
79    
80     Generated from attributes specified in code (extracted using L<Frey::PPI>)
81     and required atributes
82    
83     my @class_attributes = $self->attributes;
84     my @class_attributes = $self->attributes;
85    
86     =cut
87    
88     sub attributes {
89     my ( $self ) = @_;
90     my $a;
91     my @attrs = @{ $self->attribute_order };
92     @attrs = map { $a->{$_}++; $_ } @attrs;
93 dpavlin 975 push @attrs, $_ foreach grep { ! $a->{$_} } @{ $self->required };
94 dpavlin 386 warn "# attributes = ",dump( @attrs ) if $self->debug;
95 dpavlin 369 return @attrs if wantarray;
96     return \@attrs;
97     }
98    
99     =head2 params_form
100    
101 dpavlin 386 my $html = $self->params_form;
102     my ($html,$default_params) = $self->params_form;
103 dpavlin 369
104     =cut
105    
106 dpavlin 1113 sub form_id {
107     my ($self) = @_;
108     my $form_id = $self->class;
109     $form_id =~ s{\W+}{_}g;
110     return $form_id;
111     }
112    
113     sub select_values {
114     my ( $self, $name, $attr_type, $values ) = @_;
115    
116     $attr_type ||= '?' and warn "$name doesn't have attr_type";
117    
118     my $form_id = $self->form_id;
119     my $max_value_len = 0;
120 dpavlin 1175 my $form_value_len = $self->class->form_value_len if $self->class->can('form_value_len');
121 dpavlin 1113 my @values;
122     my $display;
123     my $html = '';
124    
125     foreach ( @$values ) {
126     my $v = ref($_) eq 'HASH' ? $_->{$name} : $_;
127     if ( $v =~ s/\t+(.+)$// ) {
128     $display->{$v} = $1;
129     }
130     warn "## value '$v'";
131     push @values, $v;
132     $max_value_len = length($v) if length($v) > $max_value_len;
133     }
134    
135 dpavlin 1175 if ( my $l = $form_value_len->{$name} ) {
136     $max_value_len = $l if $l > $max_value_len;
137     }
138    
139 dpavlin 1113 warn "# max_value_len: $max_value_len";
140     #my $render = eval $class . '->render_' . $name;
141     my $call = 'render_' . $name;
142 dpavlin 1142 my $render = $self->class->$call if $self->class->can($call);
143 dpavlin 1113 warn "## render $@";
144    
145     if ( $#values > 3 && $render !~ m{radio} ) {
146     my $options = join("\n",
147     map {
148     my $d = $display->{$_} || $_;
149     qq|<option value="$_">$d</option>|;
150     } @values
151     );
152     # onchange="alert(this.options[this.selectedIndex].value);"
153     $html = qq|
154     <select title="$attr_type" name="$name">
155     $options
156     </select>
157     | if $options;
158     } else {
159     my $delimiter = $max_value_len > $self->input_step_size ? qq|<br>| : '';
160     my $radio =
161     # $delimiter .
162     join("\n",
163     map { strip(qq|
164     <span title="$attr_type">
165     <input type="radio" name="$name" value="$_">
166     $_
167     </span>
168     $delimiter
169     |) } @values
170     );
171     if ( $radio ) {
172    
173     my $size = int( $max_value_len / $self->input_step_size ) + 1;
174     $size = 5 if $size > 5;
175     $size *= $self->input_step_size;
176     $radio .= qq|
177     <span>
178     <input type="radio" name="$name" value=" " onclick="document.getElementById('new-$name').focus();" >
179     <input type="text" name="new-$name" id="new-$name" onchange="clear_radio('$form_id','$name'); this.disable = false;" onblur="this.disable = true;" title="enter new value" size="$size">
180     </span>
181     |;
182     }
183     $html = qq|<div style="display: block;">$radio</div>|;
184     }
185    
186 dpavlin 1161 return $html;
187 dpavlin 1113 }
188    
189 dpavlin 369 sub params_form {
190     my ( $self ) = @_;
191 dpavlin 978
192     foreach my $checkbox ( split(/\s+/, $self->params->{'frey-checkboxes'} ) ) {
193     next if defined $self->params->{ $checkbox };
194    
195     $self->params->{ $checkbox } = 0;
196     warn "# checkbox $checkbox not ticked";
197     }
198    
199 dpavlin 975 my $required = $self->required('as_hash');
200 dpavlin 1162 if ( grep { $required->{$_} } keys %$required ) {
201 dpavlin 975 warn $self->class, " required params ", dump( keys %$required ) if $self->debug;
202     } else {
203 dpavlin 414 warn "all params available ", dump( $self->params ), " not creating form" if $self->debug;
204 dpavlin 386 return (undef,$self->params) if wantarray;
205 dpavlin 369 return;
206     }
207    
208     my $class = $self->class;
209    
210     $self->load_class( $class );
211    
212 dpavlin 386 my $default = clone $self->params; # XXX we really don't want to modify params!
213 dpavlin 369
214 dpavlin 731 my $params_config = {};
215     $params_config = $self->config($class);
216     warn "# $class config = ",dump( $params_config ) if $self->debug;
217 dpavlin 369
218 dpavlin 386 my $form;
219 dpavlin 1113 my $form_id = $self->form_id;
220 dpavlin 386
221 dpavlin 645 my @checkboxes;
222    
223 dpavlin 731 my $label_width = 1; # minimum
224    
225 dpavlin 1101 my @fields =
226 dpavlin 645 grep {
227 dpavlin 940 die "$_ doesn't have meta" unless $class->can('meta');
228 dpavlin 645 ! $class->meta->get_attribute($_)->is_lazy
229 dpavlin 1108 # && ! defined $default->{$_} # XXX show fields with values
230 dpavlin 715 && ! m{^_} # skip _private
231 dpavlin 1101 } $self->attributes;
232    
233     my $fieldset;
234    
235     my $last;
236     foreach my $name ( @fields ) {
237     my $set = $name;
238     $set =~ s{_[^_]+$}{};
239     push @{ $fieldset->{$set} }, $name;
240     }
241    
242     delete( $fieldset->{$_} )
243     foreach ( grep { $#{ $fieldset->{$_} } == 0 } keys %$fieldset );
244    
245 dpavlin 1108 warn "# fieldset = ",dump( $fieldset );
246 dpavlin 1101
247     foreach my $name ( @fields ) {
248 dpavlin 414 my $attr_type = '';
249 dpavlin 369 my $type = $name =~ m/^pass/ ? 'password' : 'text';
250 dpavlin 372 my $label = $name;
251     my $label_title = '';
252 dpavlin 369 my $value_html = '';
253 dpavlin 504
254     my $attr = $class->meta->get_attribute( $name );
255     $attr_type = $attr->type_constraint->name if $attr->has_type_constraint;
256    
257 dpavlin 645 my $value =
258     defined $default->{$name} ? $default->{$name} :
259     $attr->has_default ? $attr->default( $name ) :
260 dpavlin 978 undef;
261 dpavlin 510
262 dpavlin 1175 if ( defined $params_config && ref($params_config) eq 'HASH' && defined $params_config->{$name} ) {
263 dpavlin 731 $value = $params_config->{$name};
264     } elsif ( ref($params_config) eq 'ARRAY' ) {
265 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, $params_config );
266 dpavlin 731 $default->{$name} = $params_config->[0]->{$name};
267 dpavlin 504 } elsif ( $attr->has_type_constraint && $attr->type_constraint->can('values') ) {
268 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, $attr->type_constraint->values );
269 dpavlin 1079 } elsif ( $class->can( $name . '_available' ) ) {
270 dpavlin 1142 my $available = $name . '_available';
271     $available = $class->$available;
272 dpavlin 1079 confess $@ if $@;
273     $available =~ s/^\s+//gs;
274     $available =~ s/\s+$//gs;
275 dpavlin 1113 $value_html = $self->select_values( $name, $attr_type, [ split(/\n/,$available) ]);
276 dpavlin 640 } elsif ( $attr_type =~ m{^Bool} ) {
277 dpavlin 731 my $suffix = '';
278 dpavlin 978 $suffix = ' checked=1' if $value;
279     $value_html = qq|<input type="checkbox" name="$name" title="$attr_type" value=1$suffix>|;
280 dpavlin 731 push @checkboxes, $name;
281 dpavlin 1085 } elsif ( ! defined $value && ! $required->{$name} ) {
282 dpavlin 731 $value_html = qq|<tt id="$name">undef</tt><!-- $name = undef -->|; # FIXME if $self->debug
283 dpavlin 1119 } elsif ( $attr_type !~ m{^(Str|Int|Email)$} || $value =~ $Frey::Web::re_html || $name =~ m{text} ) {
284 dpavlin 731 $value_html = qq|<textarea name="$name" title="$attr_type">$value</textarea>|;
285 dpavlin 369 }
286 dpavlin 731
287 dpavlin 504 $label_title = qq| title="| . $attr->documentation . qq|"| if $attr->has_documentation;
288 dpavlin 372
289 dpavlin 1175 my $value_size = '';
290    
291 dpavlin 469 $default->{$name} = $value unless defined $default->{$name};
292    
293 dpavlin 1175 if ( ! $value_html ) { # fallback to default input type=text
294 dpavlin 372
295 dpavlin 1175 my $form_value_len = $self->class->form_value_len->{$name} if $self->class->can('form_value_len');
296     $form_value_len = length($value) if length($value) > $form_value_len;
297    
298     my $size = ( int( $form_value_len / ( $self->input_step_size * 1.5 ) ) + 1 ) * $self->input_step_size if $form_value_len;
299     $value = qq|value="$value"| if defined $value;
300     $size = qq|size="$size"| if $size;
301     $value_html = qq|<input type="$type" name="$name" title="$attr_type" $value $size>| unless $value_html;
302    
303     }
304    
305 dpavlin 369 # warn "# required $name ", $class->meta->get_attribute( $name )->dump( 2 );
306 dpavlin 975
307 dpavlin 1162 if ( defined $required->{$name} ) {
308 dpavlin 1108 $label_title .= qq| class="required"|;
309 dpavlin 1162 my $class = 'required';
310     $class = 'required-filled' if ! $required->{$name};
311     $value_html =~ s{(<\S+)\s}{$1 class=$class };
312 dpavlin 1108 }
313 dpavlin 975
314 dpavlin 1101 my $set = $name;
315     $set =~ s{_[^_]+$}{};
316    
317     my ( $before, $after ) = ( '', '<br>' );
318    
319     if ( my $s = $fieldset->{$set} ) {
320     if ($s->[0] eq $name) {
321     $before = qq|
322     <fieldset>
323     <legend>$set</legend>
324     |;
325     } elsif ( $s->[ -1 ] eq $name ) {
326     $after = qq|
327     </fieldset>
328     |;
329     }
330 dpavlin 1160 $label =~ s{^\Q$set\E_+}{};
331 dpavlin 1101 }
332    
333 dpavlin 1160 $label = $self->_label( $label );
334 dpavlin 1101 $form .= qq|$before<label for="$name"$label_title>$label</label>$value_html $after|;
335 dpavlin 731 my $ll = length($label);
336     $label_width = $ll if $ll > $label_width;
337 dpavlin 369 }
338 dpavlin 645 $form .= qq|<input type="hidden" name="frey-checkboxes" value="| . join(' ', @checkboxes) . qq|">| if @checkboxes;
339    
340 dpavlin 975 $label_width += 2; # XXX padding left+right em
341    
342 dpavlin 950 $self->add_js('static/Frey/Action.js');
343    
344 dpavlin 731 $self->add_css(qq|
345     label,input {
346     display: block;
347     float: left;
348     margin-bottom: 10px;
349     }
350    
351 dpavlin 950 input:focus {
352     border-color: #cc0;
353 dpavlin 975 background: #ffc;
354 dpavlin 950 }
355    
356 dpavlin 731 label {
357     text-align: right;
358     width: ${label_width}ex;
359 dpavlin 975 padding-right: 1ex;
360     white-space: nowrap;
361 dpavlin 731 }
362    
363 dpavlin 975 label.required {
364     font-weight: bold;
365     }
366 dpavlin 1175
367     input,
368     select {
369     margin-right: -${label_width}ex;
370     }
371 dpavlin 1108 input.required,
372     select.required {
373     border-color: #c00;
374     }
375 dpavlin 1162 input.required-filled,
376     select.required-filled {
377     border-color: #0c0;
378     }
379 dpavlin 975
380 dpavlin 731 br {
381     clear: left;
382     }
383 dpavlin 1101
384     fieldset {
385     margin: 0;
386     padding: 0;
387 dpavlin 1102 margin-bottom: 0.5em;
388 dpavlin 1101 }
389 dpavlin 731 |);
390    
391 dpavlin 645 my $html;
392    
393 dpavlin 734 # http://www.quirksmode.org/oddsandends/forms.html
394     # $form =~ s{<([^>]+)(name=")([^"]+)(")([^>]*)>}{<$1$2$3$4 id="$3" $5}gs;
395 dpavlin 731
396 dpavlin 1161 if ( $form ) {
397 dpavlin 645
398 dpavlin 1161 if ( $self->class->can('form_header') ) {
399     $html = $self->class->form_header;
400     } else {
401     $html = qq|
402     <h1>$class params</h1>
403     |;
404     }
405    
406 dpavlin 1164 my $submit = $self->_label( 'submit' );
407     $submit =~ s{^submit$}{Run $class};
408    
409 dpavlin 1161 $html .= qq|
410     <form name="$form_id" id="$form_id" method="post">
411     $form
412 dpavlin 1164 <input type="submit" value="$submit">
413 dpavlin 1161 </form>
414     |;
415     $html .= $self->class->form_footer if $self->class->can('form_footer');
416     }
417    
418 dpavlin 507 $self->add_status({
419 dpavlin 595 $self->class => {
420 dpavlin 469 params => $self->params,
421 dpavlin 731 params_config => $params_config,
422     default => $default,
423 dpavlin 390 },
424 dpavlin 507 });
425 dpavlin 369
426 dpavlin 1171 $self->title( $self->class->title ) if $self->class->title;
427    
428 dpavlin 386 return ($html,$default) if wantarray;
429 dpavlin 369 return $html;
430     }
431    
432 dpavlin 1160 sub _label {
433     my ($self,$name) = @_;
434     my $labels = $self->class->form_labels if $self->class->can('form_labels');
435     my $label = $labels->{$name};
436     if ( ! defined $label ) {
437     $label = $name;
438     $label =~ s{_}{ }g;
439     }
440     return $label;
441     }
442    
443 dpavlin 731 =head1 SEE ALSO
444    
445     L<http://www.quirksmode.org/css/forms.html> for info on CSS2 forms
446    
447     =cut
448    
449 dpavlin 1133 __PACKAGE__->meta->make_immutable;
450     no Moose;
451    
452 dpavlin 369 1;

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