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

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Revision 1164 - (show annotations)
Thu Jul 2 17:59:56 2009 UTC (14 years, 9 months ago) by dpavlin
File size: 10549 byte(s)
support submit button label
1 package Frey::Action;
2 use Moose;
3 extends 'Frey::PPI';
4 with 'Frey::Web', 'Frey::Config';
5
6 use Clone qw/clone/;
7 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 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 =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 has 'input_step_size' => (
34 documentation => 'Resize input fields by this step',
35 is => 'rw',
36 isa => 'Int',
37 # required => 1,
38 default => 20,
39 );
40
41 =head2 required
42
43 my @required_attributes = $self->required;
44 my $required_attributes = $self->required;
45 my $required_hash = $self->required('as_hash');
46
47 =cut
48
49 sub required {
50 my ($self,$param) = @_;
51 $self->load_class( $self->class );
52
53 my @required =
54 grep {
55 defined $_ && $_->can('name') &&
56 ! $_->is_lazy
57 }
58 map {
59 my $attr = $self->class->meta->get_attribute($_);
60 blessed $attr && $attr->is_required && $attr;
61 } $self->class->meta->get_attribute_list;
62
63 @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 map {
69 $hash->{$_} = 1;
70 $hash->{$_} = 0 if defined $self->params->{$_};
71 } @required;
72 return $hash;
73 }
74 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 push @attrs, $_ foreach grep { ! $a->{$_} } @{ $self->required };
94 warn "# attributes = ",dump( @attrs ) if $self->debug;
95 return @attrs if wantarray;
96 return \@attrs;
97 }
98
99 =head2 params_form
100
101 my $html = $self->params_form;
102 my ($html,$default_params) = $self->params_form;
103
104 =cut
105
106 sub form_id {
107 my ($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 my @values;
121 my $display;
122 my $html = '';
123
124 foreach ( @$values ) {
125 my $v = ref($_) eq 'HASH' ? $_->{$name} : $_;
126 if ( $v =~ s/\t+(.+)$// ) {
127 $display->{$v} = $1;
128 }
129 warn "## value '$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 my $call = 'render_' . $name;
137 my $render = $self->class->$call if $self->class->can($call);
138 warn "## render $@";
139
140 if ( $#values > 3 && $render !~ m{radio} ) {
141 my $options = join("\n",
142 map {
143 my $d = $display->{$_} || $_;
144 qq|<option value="$_">$d</option>|;
145 } @values
146 );
147 # onchange="alert(this.options[this.selectedIndex].value);"
148 $html = qq|
149 <select title="$attr_type" name="$name">
150 $options
151 </select>
152 | if $options;
153 } else {
154 my $delimiter = $max_value_len > $self->input_step_size ? qq|<br>| : '';
155 my $radio =
156 # $delimiter .
157 join("\n",
158 map { strip(qq|
159 <span title="$attr_type">
160 <input type="radio" name="$name" value="$_">
161 $_
162 </span>
163 $delimiter
164 |) } @values
165 );
166 if ( $radio ) {
167
168 my $size = int( $max_value_len / $self->input_step_size ) + 1;
169 $size = 5 if $size > 5;
170 $size *= $self->input_step_size;
171 $radio .= qq|
172 <span>
173 <input type="radio" name="$name" value=" " onclick="document.getElementById('new-$name').focus();" >
174 <input type="text" name="new-$name" id="new-$name" onchange="clear_radio('$form_id','$name'); this.disable = false;" onblur="this.disable = true;" title="enter new value" size="$size">
175 </span>
176 |;
177 }
178 $html = qq|<div style="display: block;">$radio</div>|;
179 }
180
181 return $html;
182 }
183
184 sub params_form {
185 my ( $self ) = @_;
186
187 foreach my $checkbox ( split(/\s+/, $self->params->{'frey-checkboxes'} ) ) {
188 next if defined $self->params->{ $checkbox };
189
190 $self->params->{ $checkbox } = 0;
191 warn "# checkbox $checkbox not ticked";
192 }
193
194 my $required = $self->required('as_hash');
195 if ( grep { $required->{$_} } keys %$required ) {
196 warn $self->class, " required params ", dump( keys %$required ) if $self->debug;
197 } else {
198 warn "all params available ", dump( $self->params ), " not creating form" if $self->debug;
199 return (undef,$self->params) if wantarray;
200 return;
201 }
202
203 my $class = $self->class;
204
205 $self->load_class( $class );
206
207 my $default = clone $self->params; # XXX we really don't want to modify params!
208
209 my $params_config = {};
210 $params_config = $self->config($class);
211 warn "# $class config = ",dump( $params_config ) if $self->debug;
212
213 my $form;
214 my $form_id = $self->form_id;
215
216 my @checkboxes;
217
218 my $label_width = 1; # minimum
219
220 my @fields =
221 grep {
222 die "$_ doesn't have meta" unless $class->can('meta');
223 ! $class->meta->get_attribute($_)->is_lazy
224 # && ! defined $default->{$_} # XXX show fields with values
225 && ! m{^_} # skip _private
226 } $self->attributes;
227
228 my $fieldset;
229
230 my $last;
231 foreach my $name ( @fields ) {
232 my $set = $name;
233 $set =~ s{_[^_]+$}{};
234 push @{ $fieldset->{$set} }, $name;
235 }
236
237 delete( $fieldset->{$_} )
238 foreach ( grep { $#{ $fieldset->{$_} } == 0 } keys %$fieldset );
239
240 warn "# fieldset = ",dump( $fieldset );
241
242 foreach my $name ( @fields ) {
243 my $attr_type = '';
244 my $type = $name =~ m/^pass/ ? 'password' : 'text';
245 my $label = $name;
246 my $label_title = '';
247 my $value_html = '';
248
249 my $attr = $class->meta->get_attribute( $name );
250 $attr_type = $attr->type_constraint->name if $attr->has_type_constraint;
251
252 my $value =
253 defined $default->{$name} ? $default->{$name} :
254 $attr->has_default ? $attr->default( $name ) :
255 undef;
256
257 if ( ref($params_config) eq 'HASH' && defined $params_config->{$name} ) {
258 $value = $params_config->{$name};
259 } elsif ( ref($params_config) eq 'ARRAY' ) {
260 $value_html = $self->select_values( $name, $attr_type, $params_config );
261 $default->{$name} = $params_config->[0]->{$name};
262 } elsif ( $attr->has_type_constraint && $attr->type_constraint->can('values') ) {
263 $value_html = $self->select_values( $name, $attr_type, $attr->type_constraint->values );
264 } elsif ( $class->can( $name . '_available' ) ) {
265 my $available = $name . '_available';
266 $available = $class->$available;
267 confess $@ if $@;
268 $available =~ s/^\s+//gs;
269 $available =~ s/\s+$//gs;
270 $value_html = $self->select_values( $name, $attr_type, [ split(/\n/,$available) ]);
271 } elsif ( $attr_type =~ m{^Bool} ) {
272 my $suffix = '';
273 $suffix = ' checked=1' if $value;
274 $value_html = qq|<input type="checkbox" name="$name" title="$attr_type" value=1$suffix>|;
275 push @checkboxes, $name;
276 } elsif ( ! defined $value && ! $required->{$name} ) {
277 $value_html = qq|<tt id="$name">undef</tt><!-- $name = undef -->|; # FIXME if $self->debug
278 } elsif ( $attr_type !~ m{^(Str|Int|Email)$} || $value =~ $Frey::Web::re_html || $name =~ m{text} ) {
279 $value_html = qq|<textarea name="$name" title="$attr_type">$value</textarea>|;
280 }
281
282 $label_title = qq| title="| . $attr->documentation . qq|"| if $attr->has_documentation;
283
284 $default->{$name} = $value unless defined $default->{$name};
285
286 my $size = ( int( length($value) / $self->input_step_size ) + 1 ) * $self->input_step_size;
287 $value_html = qq|<input type="$type" name="$name" title="$attr_type" value="$value" size="$size">| unless $value_html;
288
289 # warn "# required $name ", $class->meta->get_attribute( $name )->dump( 2 );
290
291 if ( defined $required->{$name} ) {
292 $label_title .= qq| class="required"|;
293 my $class = 'required';
294 $class = 'required-filled' if ! $required->{$name};
295 $value_html =~ s{(<\S+)\s}{$1 class=$class };
296 }
297
298 my $set = $name;
299 $set =~ s{_[^_]+$}{};
300
301 my ( $before, $after ) = ( '', '<br>' );
302
303 if ( my $s = $fieldset->{$set} ) {
304 if ($s->[0] eq $name) {
305 $before = qq|
306 <fieldset>
307 <legend>$set</legend>
308 |;
309 } elsif ( $s->[ -1 ] eq $name ) {
310 $after = qq|
311 </fieldset>
312 |;
313 }
314 $label =~ s{^\Q$set\E_+}{};
315 }
316
317 $label = $self->_label( $label );
318 $form .= qq|$before<label for="$name"$label_title>$label</label>$value_html $after|;
319 my $ll = length($label);
320 $label_width = $ll if $ll > $label_width;
321 }
322 $form .= qq|<input type="hidden" name="frey-checkboxes" value="| . join(' ', @checkboxes) . qq|">| if @checkboxes;
323
324 $label_width += 2; # XXX padding left+right em
325
326 $self->add_js('static/Frey/Action.js');
327
328 $self->add_css(qq|
329 label,input {
330 display: block;
331 float: left;
332 margin-bottom: 10px;
333 }
334
335 input:focus {
336 border-color: #cc0;
337 background: #ffc;
338 }
339
340 label {
341 text-align: right;
342 width: ${label_width}ex;
343 padding-right: 1ex;
344 white-space: nowrap;
345 }
346
347 label.required {
348 font-weight: bold;
349 }
350 input.required,
351 select.required {
352 border-color: #c00;
353 }
354 input.required-filled,
355 select.required-filled {
356 border-color: #0c0;
357 }
358
359 br {
360 clear: left;
361 }
362
363 fieldset {
364 margin: 0;
365 padding: 0;
366 margin-bottom: 0.5em;
367 }
368 |);
369
370 my $html;
371
372 # http://www.quirksmode.org/oddsandends/forms.html
373 # $form =~ s{<([^>]+)(name=")([^"]+)(")([^>]*)>}{<$1$2$3$4 id="$3" $5}gs;
374
375 if ( $form ) {
376
377 if ( $self->class->can('form_header') ) {
378 $html = $self->class->form_header;
379 } else {
380 $html = qq|
381 <h1>$class params</h1>
382 |;
383 }
384
385 my $submit = $self->_label( 'submit' );
386 $submit =~ s{^submit$}{Run $class};
387
388 $html .= qq|
389 <form name="$form_id" id="$form_id" method="post">
390 $form
391 <input type="submit" value="$submit">
392 </form>
393 |;
394 $html .= $self->class->form_footer if $self->class->can('form_footer');
395 }
396
397 $self->add_status({
398 $self->class => {
399 params => $self->params,
400 params_config => $params_config,
401 default => $default,
402 },
403 });
404
405 return ($html,$default) if wantarray;
406 return $html;
407 }
408
409 sub _label {
410 my ($self,$name) = @_;
411 my $labels = $self->class->form_labels if $self->class->can('form_labels');
412 my $label = $labels->{$name};
413 if ( ! defined $label ) {
414 $label = $name;
415 $label =~ s{_}{ }g;
416 }
417 return $label;
418 }
419
420 =head1 SEE ALSO
421
422 L<http://www.quirksmode.org/css/forms.html> for info on CSS2 forms
423
424 =cut
425
426 __PACKAGE__->meta->make_immutable;
427 no Moose;
428
429 1;

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