| 1 |
dpavlin |
441 |
package WebPAC::Tree; |
| 2 |
|
|
|
| 3 |
|
|
use warnings; |
| 4 |
|
|
use strict; |
| 5 |
|
|
|
| 6 |
|
|
use Carp; |
| 7 |
|
|
use Log::Log4perl qw(get_logger :levels); |
| 8 |
dpavlin |
460 |
use YAML; |
| 9 |
dpavlin |
441 |
|
| 10 |
|
|
=head1 NAME |
| 11 |
|
|
|
| 12 |
|
|
WebPAC::Tree - create tree from lookup data |
| 13 |
|
|
|
| 14 |
|
|
=head1 DESCRIPTION |
| 15 |
|
|
|
| 16 |
|
|
This module will create tree from lookup data. It requires quite complicated |
| 17 |
|
|
data structure, but once you get hang of that, it's peace of case :-) |
| 18 |
|
|
|
| 19 |
|
|
Data structure for tree definition is non-recursive, and defines each level |
| 20 |
|
|
of tree individually (so you can limit depth of tree) like this: |
| 21 |
|
|
|
| 22 |
|
|
my $l = $webpac->{'lookup'}; |
| 23 |
|
|
|
| 24 |
|
|
my @tree = ({ |
| 25 |
|
|
# level 0 |
| 26 |
dpavlin |
454 |
code_arr => sub { @{$_[0]} }, |
| 27 |
dpavlin |
441 |
filter_code => sub { shift }, |
| 28 |
|
|
lookup_v900 => sub { |
| 29 |
|
|
my ($c,$p) = @_; |
| 30 |
|
|
$p =~ s/^a:(..:....):.*$/$1/; |
| 31 |
|
|
return "a:".$p.":".$c; |
| 32 |
|
|
}, |
| 33 |
|
|
lookup_term => sub { shift @{$l->{"d:".$_[0]}} }, |
| 34 |
|
|
lookup_mfn => sub { shift @{$l->{"900_mfn:".$_[0]}} }, |
| 35 |
dpavlin |
454 |
have_children => sub { return $l->{$_[1]} }, |
| 36 |
dpavlin |
441 |
},{ |
| 37 |
|
|
# level 1 |
| 38 |
dpavlin |
454 |
code_arr => sub { @{$_[0]} }, |
| 39 |
dpavlin |
441 |
filter_code => sub { shift }, |
| 40 |
|
|
lookup_v900 => sub { |
| 41 |
|
|
my ($c,$p) = @_; |
| 42 |
|
|
$p =~ s/^a:(..:....):.*$/$1/; |
| 43 |
|
|
return "a:".$p.":".$c; |
| 44 |
|
|
}, |
| 45 |
|
|
lookup_term => sub { shift @{$l->{"d:".$_[0]}} }, |
| 46 |
|
|
lookup_mfn => sub { shift @{$l->{"900_mfn:".$_[0]}} }, |
| 47 |
|
|
have_children => sub { 0 }, |
| 48 |
|
|
)}; |
| 49 |
|
|
|
| 50 |
dpavlin |
454 |
You can, however, create recursion with C<have_children_at_level> discussed |
| 51 |
|
|
below, but you loose ability to limit tree depth or to specify different |
| 52 |
|
|
style for each level. |
| 53 |
|
|
|
| 54 |
dpavlin |
441 |
Documentation for each element of tree is little sparse, but here it is: |
| 55 |
|
|
|
| 56 |
|
|
=over 5 |
| 57 |
|
|
|
| 58 |
|
|
=item code_arr |
| 59 |
|
|
|
| 60 |
|
|
Called once for each level. |
| 61 |
|
|
|
| 62 |
|
|
@mfns = $t->{'code_arr'}->($start_code); |
| 63 |
|
|
|
| 64 |
|
|
Returns codes for this level. |
| 65 |
|
|
|
| 66 |
|
|
=item filter_code |
| 67 |
|
|
|
| 68 |
|
|
Optional function (which can be replaced by C<shift>) to filter which codes |
| 69 |
|
|
are displayed. |
| 70 |
|
|
|
| 71 |
|
|
$t->{'filter_code'}->($code); |
| 72 |
|
|
|
| 73 |
|
|
Returns code or C<false> if code has to be skipped. |
| 74 |
|
|
|
| 75 |
|
|
=item lookup_v900 |
| 76 |
|
|
|
| 77 |
|
|
Lookup value which will be called C<$v900> from now on. |
| 78 |
|
|
|
| 79 |
dpavlin |
460 |
my $v900 = $t->{'lookup_v900'}->($code); |
| 80 |
dpavlin |
441 |
|
| 81 |
|
|
=item lookup_term |
| 82 |
|
|
|
| 83 |
|
|
Lookup term value, displayed as name of tree element. |
| 84 |
|
|
|
| 85 |
|
|
my $term = $t->{'lookup_term'}->($code,$v900); |
| 86 |
|
|
|
| 87 |
|
|
=item lookup_mfn |
| 88 |
|
|
|
| 89 |
|
|
Lookup mfn value, used to create hyperlink from tree. |
| 90 |
|
|
|
| 91 |
|
|
my $mfn = $t->{'lookup_mfn'}->($code,$v900); |
| 92 |
|
|
|
| 93 |
|
|
=item have_children |
| 94 |
|
|
|
| 95 |
dpavlin |
454 |
Returns children for next iteration of tree generation or undef. |
| 96 |
dpavlin |
441 |
|
| 97 |
dpavlin |
460 |
my $next_lvl = $t->{'have_children'}->($code,$v900); |
| 98 |
dpavlin |
441 |
|
| 99 |
dpavlin |
454 |
=item have_children_at_level |
| 100 |
dpavlin |
441 |
|
| 101 |
dpavlin |
454 |
Returns children for next iteration and next level. |
| 102 |
dpavlin |
441 |
|
| 103 |
dpavlin |
460 |
my ($level,$next_lvl) = $t->{'have_children_at_level'}->($code,$v900); |
| 104 |
dpavlin |
441 |
|
| 105 |
dpavlin |
454 |
It's safe to return undef just for next level data (C<$next_lvl> in example |
| 106 |
|
|
above) to stop recursion. |
| 107 |
|
|
|
| 108 |
dpavlin |
441 |
=back |
| 109 |
|
|
|
| 110 |
|
|
=head1 METHODS |
| 111 |
|
|
|
| 112 |
|
|
=head2 new |
| 113 |
|
|
|
| 114 |
|
|
Create new tree object |
| 115 |
|
|
|
| 116 |
|
|
my $tree = new WebPAC::Tree( |
| 117 |
|
|
dir => './out', |
| 118 |
|
|
html => 'browse.html', |
| 119 |
|
|
template => './output_template/tree.tt', |
| 120 |
|
|
js => 'tree-ids.js', |
| 121 |
|
|
tree => \@tree, |
| 122 |
|
|
log => 'log4perl.conf', |
| 123 |
|
|
); |
| 124 |
|
|
|
| 125 |
|
|
C<dir> is output directory in which html files and JavaScript files will be |
| 126 |
|
|
created (think of it as C<public_html>). |
| 127 |
|
|
|
| 128 |
|
|
C<html> is name of output html file. |
| 129 |
|
|
|
| 130 |
|
|
C<template> is name of template. It uses Template Toolkit syntax [% var %], |
| 131 |
|
|
but doesn't really use TT. |
| 132 |
|
|
|
| 133 |
|
|
C<js> is name of JavaScript file with shown and hidden ids. |
| 134 |
|
|
|
| 135 |
|
|
C<tree> is tree array with levels of tree described above. |
| 136 |
|
|
|
| 137 |
|
|
C<log> is optional parametar which specify filename of L<Log::Log4Perl> |
| 138 |
|
|
config file. Default is C<log.conf>. |
| 139 |
|
|
|
| 140 |
|
|
=cut |
| 141 |
|
|
|
| 142 |
|
|
sub new { |
| 143 |
|
|
my $class = shift; |
| 144 |
|
|
my $self = {@_}; |
| 145 |
|
|
bless($self, $class); |
| 146 |
|
|
|
| 147 |
|
|
my $log_file = $self->{'log'} || "log.conf"; |
| 148 |
|
|
Log::Log4perl->init($log_file); |
| 149 |
|
|
|
| 150 |
|
|
my $log = $self->_get_logger(); |
| 151 |
|
|
|
| 152 |
|
|
foreach my $p (qw(dir html template js tree)) { |
| 153 |
|
|
$log->logconfess("need $p") unless ($self->{$p}); |
| 154 |
|
|
} |
| 155 |
|
|
|
| 156 |
|
|
$self->{'show_ids'} = []; |
| 157 |
|
|
$self->{'hide_ids'} = []; |
| 158 |
|
|
|
| 159 |
dpavlin |
460 |
my $html = $self->unroll(0,()); |
| 160 |
dpavlin |
441 |
|
| 161 |
|
|
my $html_file = $self->{'dir'}.'/'.$self->{'html'}; |
| 162 |
|
|
|
| 163 |
|
|
open(TEMPLATE, $self->{'template'}) || $log->logdie("can't open '",$self->{'template'},": $!"); |
| 164 |
|
|
my $tmpl; |
| 165 |
|
|
while(<TEMPLATE>) { |
| 166 |
|
|
$tmpl .= $_; |
| 167 |
|
|
} |
| 168 |
|
|
close(TEMPLATE); |
| 169 |
|
|
|
| 170 |
|
|
$log->info("creating '$html_file' with tree"); |
| 171 |
|
|
|
| 172 |
|
|
my $js_arr_file = $self->{'js'}; |
| 173 |
|
|
$tmpl =~ s/\[%\s+js\s+%\]/$js_arr_file/gi; |
| 174 |
|
|
$tmpl =~ s/\[%\s+tree\s+%\]/$html/gi; |
| 175 |
|
|
|
| 176 |
|
|
open(HTML, ">", $html_file) || $log->logdie("can't open '$html_file': $!"); |
| 177 |
|
|
print HTML $tmpl; |
| 178 |
|
|
close(HTML); |
| 179 |
|
|
|
| 180 |
|
|
$self->generate_js(); |
| 181 |
|
|
|
| 182 |
|
|
return $self; |
| 183 |
|
|
} |
| 184 |
|
|
|
| 185 |
|
|
=head2 unroll |
| 186 |
|
|
|
| 187 |
|
|
Generate tree recursively. |
| 188 |
|
|
|
| 189 |
dpavlin |
460 |
my $html = $tree->unroll($level,$data_arr); |
| 190 |
dpavlin |
441 |
|
| 191 |
|
|
=cut |
| 192 |
|
|
|
| 193 |
|
|
sub unroll { |
| 194 |
|
|
my $self = shift; |
| 195 |
|
|
|
| 196 |
dpavlin |
460 |
my ($level,$data_arr) = @_; |
| 197 |
dpavlin |
441 |
|
| 198 |
dpavlin |
455 |
my $log = $self->_get_logger(); |
| 199 |
|
|
|
| 200 |
|
|
if (! defined($level)) { |
| 201 |
|
|
$log->warn("level is undef, stoping recursion..."); |
| 202 |
|
|
return; |
| 203 |
|
|
} |
| 204 |
|
|
|
| 205 |
dpavlin |
454 |
my $next_level = $level + 1; |
| 206 |
|
|
|
| 207 |
dpavlin |
441 |
$log->logconfess("need level") unless (defined($level)); |
| 208 |
dpavlin |
460 |
#$log->logconfess("need data_arr") unless (defined($data_arr)); |
| 209 |
dpavlin |
441 |
|
| 210 |
|
|
my $tree = $self->{'tree'}; |
| 211 |
|
|
|
| 212 |
|
|
$log->logconfess("tree is not defined") unless (defined($tree)); |
| 213 |
|
|
|
| 214 |
|
|
# all levels passed? |
| 215 |
|
|
return if (! defined($tree->[$level])); |
| 216 |
|
|
|
| 217 |
dpavlin |
460 |
$log->debug("unroll level $level"); |
| 218 |
dpavlin |
441 |
|
| 219 |
|
|
my $html; |
| 220 |
|
|
|
| 221 |
dpavlin |
460 |
foreach my $code ($tree->[$level]->{'code_arr'}->($data_arr)) { |
| 222 |
dpavlin |
441 |
|
| 223 |
|
|
if ($code = $tree->[$level]->{'filter_code'}->($code)) { |
| 224 |
|
|
|
| 225 |
|
|
$log->debug("# $level filter passed code $code"); |
| 226 |
|
|
|
| 227 |
dpavlin |
460 |
my $v900 = $tree->[$level]->{'lookup_v900'}->($code) || $log->warn("can't lookup_v900($code)") && return; |
| 228 |
|
|
$log->debug("# $level lookup_v900($code) = $v900"); |
| 229 |
dpavlin |
441 |
|
| 230 |
dpavlin |
460 |
my $term = $tree->[$level]->{'lookup_term'}->($code,$v900) || $log->warn("can't lookup_term($code,$v900)") && return; |
| 231 |
dpavlin |
441 |
$log->debug("# $level lookup_term($code,$v900) = $term"); |
| 232 |
|
|
|
| 233 |
dpavlin |
460 |
my $mfn = $tree->[$level]->{'lookup_mfn'}->($code,$v900) || $log->warn("can't lookup_mfn($code,$v900)") && return; |
| 234 |
dpavlin |
441 |
$log->debug("# $level lookup_mfn($code,$v900) = $mfn"); |
| 235 |
|
|
|
| 236 |
|
|
$log->debug("$code -> $v900 : $term [$mfn]"); |
| 237 |
|
|
|
| 238 |
dpavlin |
469 |
my ($link_start,$link_end) = ('<a name="mfn'.$mfn.'"></a>',''); |
| 239 |
dpavlin |
441 |
|
| 240 |
dpavlin |
460 |
my $have_children = $tree->[$level]->{'have_children'}->($code,$v900); |
| 241 |
dpavlin |
454 |
|
| 242 |
|
|
if (! $have_children) { |
| 243 |
dpavlin |
460 |
$log->debug("# $level doesn't have_children($code,$v900)"); |
| 244 |
|
|
($next_level,$have_children) = $tree->[$level]->{'have_children_at_level'}->($code,$v900) if ($tree->[$level]->{'have_children_at_level'}); |
| 245 |
|
|
$log->debug("# $level have_children($code,$v900) on level $next_level") if ($have_children); |
| 246 |
dpavlin |
454 |
|
| 247 |
dpavlin |
441 |
} |
| 248 |
|
|
|
| 249 |
dpavlin |
454 |
($link_start,$link_end) = (qq{<a href="#mfn$mfn" onClick="return toggle_display('id$mfn');">},qq{</a>}) if ($have_children); |
| 250 |
|
|
|
| 251 |
dpavlin |
441 |
my $mfn_link = "thes/$mfn.html"; |
| 252 |
|
|
if (-e "out/$mfn_link") { |
| 253 |
|
|
$html .= " " x $level . |
| 254 |
dpavlin |
443 |
qq{<li>${link_start}<span id="o$mfn">${term}</span>${link_end}}. |
| 255 |
dpavlin |
470 |
qq{ <a href="$mfn_link" onClick="javascript:return popup(this);">»</a></li>\n}; |
| 256 |
dpavlin |
441 |
} else { |
| 257 |
|
|
$log->warn("file 'out/$mfn_link' doesn't exist, skipping"); |
| 258 |
|
|
} |
| 259 |
|
|
|
| 260 |
|
|
unless ($have_children) { |
| 261 |
|
|
next; |
| 262 |
|
|
} |
| 263 |
|
|
my $style = $tree->[$level]->{'style'}; |
| 264 |
|
|
|
| 265 |
|
|
$html .= " " x $level . |
| 266 |
|
|
qq{<a name="mfn$mfn"></a>\n <ul id="id$mfn"}. |
| 267 |
|
|
($style ? ' style="'.$style.'"' : ''). |
| 268 |
|
|
qq{>\n}; |
| 269 |
|
|
|
| 270 |
|
|
if ($style) { |
| 271 |
|
|
if ($style =~ m/display\s*:\s*none/i) { |
| 272 |
|
|
push @{$self->{'hide_ids'}}, "id$mfn"; |
| 273 |
|
|
} else { |
| 274 |
|
|
push @{$self->{'show_ids'}}, "id$mfn"; |
| 275 |
|
|
} |
| 276 |
|
|
} else { |
| 277 |
|
|
# default: show |
| 278 |
|
|
push @{$self->{'show_ids'}}, "id$mfn"; |
| 279 |
|
|
} |
| 280 |
|
|
|
| 281 |
dpavlin |
454 |
$html .= $self->unroll($next_level, $have_children); |
| 282 |
dpavlin |
441 |
|
| 283 |
|
|
$html .= " " x $level . qq{</ul>\n}; |
| 284 |
|
|
|
| 285 |
|
|
} |
| 286 |
|
|
} |
| 287 |
|
|
return $html; |
| 288 |
|
|
} |
| 289 |
|
|
|
| 290 |
|
|
=head2 generate_js |
| 291 |
|
|
|
| 292 |
|
|
Generate JavaScript arrays C<show> and C<hide> used to toggle display of |
| 293 |
|
|
elements. |
| 294 |
|
|
|
| 295 |
|
|
$tree->generate_js(); |
| 296 |
|
|
|
| 297 |
|
|
=cut |
| 298 |
|
|
|
| 299 |
|
|
sub generate_js { |
| 300 |
|
|
my $self = shift; |
| 301 |
|
|
|
| 302 |
|
|
my $log = $self->_get_logger(); |
| 303 |
|
|
|
| 304 |
|
|
my $js_file = $self->{'dir'}.'/'.$self->{'js'}; |
| 305 |
|
|
|
| 306 |
|
|
$log->info("creating '$js_file' with arrays of shown and hidden ids"); |
| 307 |
|
|
|
| 308 |
|
|
open(JS, ">", $js_file) || $log->logdie("can't open '$js_file': $!"); |
| 309 |
|
|
print JS "var show = ['",join("','",@{$self->{'show_ids'}}),"'];\n"; |
| 310 |
|
|
print JS "var hide = ['",join("','",@{$self->{'hide_ids'}}),"'];\n"; |
| 311 |
|
|
close(JS); |
| 312 |
|
|
|
| 313 |
dpavlin |
442 |
$log->debug("stored ",scalar @{$self->{'show_ids'}}," shown and ",scalar @{$self->{'hide_ids'}}," hidden elements"); |
| 314 |
dpavlin |
441 |
|
| 315 |
|
|
} |
| 316 |
|
|
|
| 317 |
|
|
# |
| 318 |
|
|
|
| 319 |
|
|
=head1 INTERNAL METHODS |
| 320 |
|
|
|
| 321 |
|
|
You shouldn't call this methods directly. |
| 322 |
|
|
|
| 323 |
|
|
=head2 _get_logger |
| 324 |
|
|
|
| 325 |
|
|
Get C<Log::Log4perl> object with a twist: domains are defined for each |
| 326 |
|
|
method |
| 327 |
|
|
|
| 328 |
|
|
my $log = $webpac->_get_logger(); |
| 329 |
|
|
|
| 330 |
|
|
=cut |
| 331 |
|
|
|
| 332 |
|
|
sub _get_logger { |
| 333 |
|
|
my $self = shift; |
| 334 |
|
|
|
| 335 |
|
|
my $name = (caller(1))[3] || caller; |
| 336 |
|
|
return get_logger($name); |
| 337 |
|
|
} |
| 338 |
|
|
|
| 339 |
|
|
1; |
Parent Directory
| 
Revision Log