lib/Continuity/Widget.pm

package Continuity::Widget;

our $VERSION = '0.01';

=head1 NAME

Continuity::Widget - Handy Moose-based Widget Thingie for Continuity Apps

=head1 SYNOPSIS

  use Continuity::Widget;

=head1 DESCRIPTION

Don't quite know what this will be yet.

=cut

use Data::Dump qw/dump/;
use Data::UUID;
use Moose;
with 'Continuity::Coro::Moose';

# List of callbacks, buttons for now
has callback => ( is => 'rw', default => sub {{}} );

has renderer => ( is => 'rw', isa => 'HashRef', default => sub {{}});

has 'uuid'   => (
  is      => 'ro', 
  isa     => 'Str', 
  default => sub { Data::UUID->new->create_str }
);

has render_as => ( is => 'rw', isa => 'Str', required => 1, default => 'view' );

# Given a name generate a unique field ID
sub field_name {
  my ($self, $name) = @_;
  return $self->uuid . '-' . $name;
}

sub render_iterator {
        my ($self, $before, $iterator, $after) = @_;
        my %attrmap = %{ $self->meta->get_attribute_map };
        my $middle;
        while( my ($name, $attr) = each %attrmap ) {
                my $reader = $attr->get_read_method;
                my $val = $self->$reader || '';
                my $field_name = $self->field_name($name);
                $middle .= $iterator->( $name, $field_name, $attr->label, $val ) || '';
        }
        if ( $middle ) {
                return $before . $middle . $self->render_buttons . $after;
        } else {
                warn "iterator didn't produce output, skipping";
                return "<!-- empty -->";
        }
}
        

# This renders an input form. Need to make the renderer selection dynamic
sub render_edit {
  my ($self) = @_;
  my $out = '<div class="editform">';
  my %attrmap = %{ $self->meta->get_attribute_map };
  while( my ($name, $attr) = each %attrmap ) {
        next if $name =~ /^_/;
    my $reader = $attr->get_read_method;
    my $val = $self->$reader || '';
    my $field_name = $self->field_name($name);
    $out .= qq|
      <div class=fieldholder>
        <div class=label> @{[$attr->label]} </div>
        <div class=field>
          <input type=text id="$field_name" name="$field_name" value="@{[$val]}">
        </div>
      </div>
    |;
  }
  $out .= $self->render_buttons;
  $out .= '</div>';
  return $out;
}

sub render_view {
  my ($self) = @_;
  my $out = '<div class="view">';
  my %attrmap = %{ $self->meta->get_attribute_map };
  while( my ($name, $attr) = each %attrmap ) {
        #next if $name =~ /^_/;
    my $reader = $attr->get_read_method;
    my $val = $self->$reader || '';
    my $field_name = $self->field_name($name);
    $out .= qq|
      <div class=fieldholder>
        <div class=label> @{[$attr->label]} </div>
        <div class=field>
          @{[$val]}
        </div>
      </div>
    |;
  }
  $out .= $self->render_buttons;
  $out .= '</div>';
  return $out;
}

sub set_from_hash {
        my ($self, $f) = @_;
        my %attrmap = %{ $self->meta->get_attribute_map };
        my $hash;
        while( my ($name, $attr) = each %attrmap ) {
                my $field_name = $self->field_name($name);
                if(defined $f->{$field_name}) {
                        my $writer = $attr->get_write_method;
                        $self->$writer($f->{$field_name});
                        $hash->{ $name } = $f->{$field_name};
                }
        }
        warn "# set_from_hash ", $self->uuid," produced hash = ",dump( $hash ) if $hash;
        return $hash;
}

sub add_button {
  my ($self, $name, $callback) = @_;
  $self->callback->{$name} = $callback;
}

sub remove_button {
        my ( $self, $name ) = @_;
        delete( $self->callback->{$name} );
}

sub render_buttons {
  my ($self) = @_;
  my $out = '';
  foreach my $name (keys %{$self->callback}) {
    my $btn_name = $self->field_name($name);
    $out .= qq{
      <input type="submit" name="@{[$btn_name]}" value="$name">
    };
  }
  return $out;
}

sub exec_buttons {
  my ($self, $f) = @_;
  foreach my $name (keys %{$self->callback}) {
    my $btn_name = $self->field_name($name);
    if($f->{$btn_name}) {
      $self->callback->{$name}->($f);
    }
  }
}

sub main {
  my ($self) = @_;
  $self->renderer->{view} = \&render_view;
  $self->renderer->{edit} = \&render_edit;
  while(1) {
    my $out = $self->renderer->{ $self->render_as }->($self);
    my $f = $self->next($out);
    $self->set_from_hash($f);
    $self->exec_buttons($f);
  }
}

=head1 SEE ALSO

L<Continuity>, http://continuity.tlt42.org/

=head1 AUTHOR

awwaiid, E<lt>awwaiid@thelackthereof.orgE<gt>, L<http://thelackthereof.org/>

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2008 by Brock Wilcox

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.10.0 or,
at your option, any later version of Perl 5 you may have available.

=cut

1;

1	dpavlin	69	package Continuity::Widget;
2
3			our $VERSION = '0.01';
4
5			=head1 NAME
6
7			Continuity::Widget - Handy Moose-based Widget Thingie for Continuity Apps
8
9			=head1 SYNOPSIS
10
11			use Continuity::Widget;
12
13			=head1 DESCRIPTION
14
15			Don't quite know what this will be yet.
16
17			=cut
18
19	dpavlin	70	use Data::Dump qw/dump/;
20	dpavlin	69	use Data::UUID;
21			use Moose;
22			with 'Continuity::Coro::Moose';
23
24			# List of callbacks, buttons for now
25			has callback => ( is => 'rw', default => sub {{}} );
26
27			has renderer => ( is => 'rw', isa => 'HashRef', default => sub {{}});
28
29			has 'uuid' => (
30			is => 'ro',
31			isa => 'Str',
32			default => sub { Data::UUID->new->create_str }
33			);
34
35	dpavlin	73	has render_as => ( is => 'rw', isa => 'Str', required => 1, default => 'view' );
36
37	dpavlin	69	# Given a name generate a unique field ID
38			sub field_name {
39			my ($self, $name) = @_;
40			return $self->uuid . '-' . $name;
41			}
42
43	dpavlin	79	sub render_iterator {
44			my ($self, $before, $iterator, $after) = @_;
45			my %attrmap = %{ $self->meta->get_attribute_map };
46			my $middle;
47			while( my ($name, $attr) = each %attrmap ) {
48			my $reader = $attr->get_read_method;
49			my $val = $self->$reader \|\| '';
50			my $field_name = $self->field_name($name);
51			$middle .= $iterator->( $name, $field_name, $attr->label, $val ) \|\| '';
52			}
53			if ( $middle ) {
54			return $before . $middle . $self->render_buttons . $after;
55			} else {
56			warn "iterator didn't produce output, skipping";
57			return "<!-- empty -->";
58			}
59			}
60
61
62	dpavlin	69	# This renders an input form. Need to make the renderer selection dynamic
63			sub render_edit {
64			my ($self) = @_;
65			my $out = '<div class="editform">';
66			my %attrmap = %{ $self->meta->get_attribute_map };
67			while( my ($name, $attr) = each %attrmap ) {
68	dpavlin	70	next if $name =~ /^_/;
69	dpavlin	69	my $reader = $attr->get_read_method;
70			my $val = $self->$reader \|\| '';
71			my $field_name = $self->field_name($name);
72			$out .= qq\|
73			<div class=fieldholder>
74			<div class=label> @{[$attr->label]} </div>
75			<div class=field>
76			<input type=text id="$field_name" name="$field_name" value="@{[$val]}">
77			</div>
78			</div>
79			\|;
80			}
81			$out .= $self->render_buttons;
82			$out .= '</div>';
83			return $out;
84			}
85
86			sub render_view {
87			my ($self) = @_;
88			my $out = '<div class="view">';
89			my %attrmap = %{ $self->meta->get_attribute_map };
90			while( my ($name, $attr) = each %attrmap ) {
91	dpavlin	70	#next if $name =~ /^_/;
92	dpavlin	69	my $reader = $attr->get_read_method;
93			my $val = $self->$reader \|\| '';
94			my $field_name = $self->field_name($name);
95			$out .= qq\|
96			<div class=fieldholder>
97			<div class=label> @{[$attr->label]} </div>
98			<div class=field>
99			@{[$val]}
100			</div>
101			</div>
102			\|;
103			}
104			$out .= $self->render_buttons;
105			$out .= '</div>';
106			return $out;
107			}
108
109			sub set_from_hash {
110	dpavlin	82	my ($self, $f) = @_;
111	dpavlin	70	my %attrmap = %{ $self->meta->get_attribute_map };
112			my $hash;
113			while( my ($name, $attr) = each %attrmap ) {
114			my $field_name = $self->field_name($name);
115			if(defined $f->{$field_name}) {
116			my $writer = $attr->get_write_method;
117			$self->$writer($f->{$field_name});
118			$hash->{ $name } = $f->{$field_name};
119			}
120			}
121	dpavlin	82	warn "# set_from_hash ", $self->uuid," produced hash = ",dump( $hash ) if $hash;
122			return $hash;
123	dpavlin	69	}
124
125			sub add_button {
126			my ($self, $name, $callback) = @_;
127			$self->callback->{$name} = $callback;
128			}
129
130	dpavlin	82	sub remove_button {
131			my ( $self, $name ) = @_;
132			delete( $self->callback->{$name} );
133			}
134
135	dpavlin	69	sub render_buttons {
136			my ($self) = @_;
137			my $out = '';
138			foreach my $name (keys %{$self->callback}) {
139			my $btn_name = $self->field_name($name);
140			$out .= qq{
141			<input type="submit" name="@{[$btn_name]}" value="$name">
142			};
143			}
144			return $out;
145			}
146
147			sub exec_buttons {
148			my ($self, $f) = @_;
149			foreach my $name (keys %{$self->callback}) {
150			my $btn_name = $self->field_name($name);
151			if($f->{$btn_name}) {
152			$self->callback->{$name}->($f);
153			}
154			}
155			}
156
157			sub main {
158			my ($self) = @_;
159			$self->renderer->{view} = \&render_view;
160			$self->renderer->{edit} = \&render_edit;
161			while(1) {
162	dpavlin	73	my $out = $self->renderer->{ $self->render_as }->($self);
163	dpavlin	69	my $f = $self->next($out);
164			$self->set_from_hash($f);
165			$self->exec_buttons($f);
166			}
167			}
168
169			=head1 SEE ALSO
170
171			L<Continuity>, http://continuity.tlt42.org/
172
173			=head1 AUTHOR
174
175			awwaiid, E<lt>awwaiid@thelackthereof.orgE<gt>, L<http://thelackthereof.org/>
176
177			=head1 COPYRIGHT AND LICENSE
178
179			Copyright (C) 2008 by Brock Wilcox
180
181			This library is free software; you can redistribute it and/or modify
182			it under the same terms as Perl itself, either Perl version 5.10.0 or,
183			at your option, any later version of Perl 5 you may have available.
184
185			=cut
186
187			1;
188