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181
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1 package IMPL::Web::View::TTLoader;
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2 use strict;
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3
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4 use IMPL::lang qw(:declare :constants);
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5
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6 use Template::Provider();
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7 use Template::Context();
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8 use Template::Constants qw(:status);
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9
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10 use IMPL::Web::View::TTDocument();
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11
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12 use parent qw(
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13 IMPL::Object
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14 );
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15
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16 BEGIN {
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17 public property options => PROP_ALL;
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18 public property provider => PROP_GET | PROP_OWNERSET;
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19 public property context => PROP_GET | PROP_OWNERSET;
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20 public property ext => PROP_ALL;
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21
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22 public property isInitialized => PROP_GET | PROP_OWNERSET;
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23 public property initializer => PROP_GET | PROP_OWNERSET;
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24 }
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25
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26 sub CTOR {
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27 my ($this,$refOpts,%args) = @_;
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28
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29 $this->ext(delete $args{etx});
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30 $this->initializer(delete $args{initializer});
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31
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32 $this->options($refOpts);
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33
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34 $refOpts->{LOAD_TEMPLATES} = $this->provider(new Template::Provider($refOpts));
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35
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36 $this->context(new Template::Context($refOpts));
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37 }
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38
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39 sub document {
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40 my ($this,$name) = @_;
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41
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42 my $tt = $this->template($name);
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43
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44 $this->_init();
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45
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46 my $opts = { $this->options };
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47
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48 $opts->{STASH} = $this->context->stash->clone();
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49 $opts->{LOAD_TEMPLATES} = $this->provider;
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50
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51 return new IMPL::Web::View::TTDocument( $tt, $opts, loader => $this );
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52 }
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53
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54 sub template {
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55 my ($this,$name) = @_;
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56
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57 $name =~ s/^\s+|\s+$//g;
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58
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59 die new IMPL::ArgumentException("A valid template name is required") unless length $name;
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60
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61 $name = $this->_appendExt($name);
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62
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63 my ($tt,$error) = $this->provider->fetch($name);
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64
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65 if ($error == STATUS_DECLINED) {
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66 die new IMPL::KeyNotFoundException($name);
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67 } elsif ($error == STATUS_ERROR) {
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68 die new IMPL::Exception("Failed to load a template", $name, $tt);
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69 }
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70
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71 return $tt;
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72 }
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73
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74 sub _appendExt {
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75 my ($this,$name) = @_;
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76
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77
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78 if (length $this->ext and substr( $name, -length($this->ext) ) eq $this->ext) {
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79 return $name;
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80 } else {
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81 return $name . $this->ext;
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82 }
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83 }
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84
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85 sub _init {
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86 my ($this) = @_;
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87
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88 if (!$this->isInitialized) {
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89 $this->isInitialized(1);
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90
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91 if ($this->initializer) {
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92 eval {
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93 $this->context->process($this->initializer);
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94 }
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95 }
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96 }
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97 }
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98
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99 1;
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100
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101 __END__
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102
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103 =pod
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104
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105 =head1 NAME
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106
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107 C<IMPL::Web::View::TTLoader> - предоставляет глобальный контекст для загрузки шаблонов
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108
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109 =head1 SYNOPSIS
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110
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111 =begin code
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112
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113 use IMPL::Web::View::TTLoader();
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114
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115 my $loader = new IMPL::Web::View::TTLoader(
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116 {
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117 INCLUDE_PATH => [
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118 '/my/app/tt',
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119 '/my/app/tt/lib'
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120 ]
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121 },
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122 ext => '.tt',
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123 initializer => 'shared/global'
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124
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125 );
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126
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127 my $doc = $loader->document('index');
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128
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129 my $html = $doc->Render();
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130
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131 =end code
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132
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133 =head1 DESCRIPTION
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134
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135 =cut
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136
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