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49
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1 package Form::ValueItem::List;
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2 use Common;
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3 use base qw(Form::ValueItem);
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4
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5 BEGIN {
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6 DeclareProperty ListValues => ACCESS_READ;
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7 DeclareProperty CurrentItem => ACCESS_READ;
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8 }
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9
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10 sub CTOR {
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11 my $this = shift;
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12 $this->SUPER::CTOR(@_);
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13
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14 $this->{$ListValues} = [];
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15
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16 my $source = $this->Form->Bindings->{$this->Attributes->{source}};
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17
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18 if (ref $source eq 'CODE') {
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19 $this->LoadList($source->());
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20 } elsif (ref $source and (UNIVERSAL::isa($source,'HASH') or UNIVERSAL::isa($source,'ARRAY'))){
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21 $this->LoadList($source);
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22 } else {
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23 if (not $source) {
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24 warn "a source isn't specified for the listvalue ".$this->Id->Canonical;
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25 } else {
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26 warn "an unsupported source type ".(ref $source)." for the listvalue".$this->Id->Canonical;
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27 }
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28 }
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29 }
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30
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31 sub Value {
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32 my $this = shift;
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33
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34 if (@_) {
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35 my $newValue = shift;
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36
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37 $this->{$CurrentItem}->{active} = 0 if $this->{$CurrentItem};
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38
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39 my ($item) = (defined $newValue ? grep {defined $_->{id} and $_->{id} eq $newValue} @{$this->{$ListValues}} : undef);
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40
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41 if ($item) {
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42 $this->{$CurrentItem} = $item;
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43 $item->{active} = 1;
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44 return $this->SUPER::Value($newValue);
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45 } else {
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46 undef $this->{$CurrentItem};
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47 return $this->SUPER::Value(undef);
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48 }
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49 } else {
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50 return $this->SUPER::Value;
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51 }
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52 }
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53
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54 sub LoadList {
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55 my ($this,$refList) = @_;
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56
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57 if (ref $refList and UNIVERSAL::isa($refList,'HASH')) {
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58 $this->{$CurrentItem} = undef;
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59 $this->{$ListValues} = [ sort { $a->{name} cmp $b->{name} } map { Form::ValueItem::List::Item->new($_,ref $refList->{$_} eq 'ARRAY' ? @{$refList->{$_}} : $refList->{$_})} keys %{$refList}];
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60 $this->SUPER::Value(undef);
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61 } elsif (ref $refList and UNIVERSAL::isa($refList,'ARRAY')) {
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62 $this->{$CurrentItem} = undef;
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63 $this->{$ListValues} = [map { Form::ValueItem::List::Item->new(ref $_ eq 'ARRAY' ? @$_ : $_ )} @$refList];
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64 $this->SUPER::Value(undef);
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65 } else {
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66 die new Exception('An unexpected list type');
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67 }
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68 }
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69
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70 package Form::ValueItem::List::Item;
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71 use fields qw(
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72 id
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73 description
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74 name
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75 active
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76 );
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77
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78 sub new {
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79 my ($class,$id,$name,$desc) = @_;
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80
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81 my $this=fields::new($class);
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82 $this->{id} = $id;
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83 $this->{name} = $name;
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84 $this->{description} = $desc;
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85
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86 return $this;
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87 }
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88
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89 #compatibility with TToolkit
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90
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91 sub Id {
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92 $_[0]->{id};
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93 }
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94
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95 sub Description {
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96 $_[0]->{description};
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97 }
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98
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99 sub Active {
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100 $_[0]->{active};
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101 }
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102
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103 sub Name {
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104 $_[0]->{name};
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105 }
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106
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107 1;
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