The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

AMALTSEV / XAO-Web-1.93 / lib / XAO / DO / Web / MenuBuilder.pm 

            

              
—
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
—
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163

              
=head1 NAME
XAO::DO::Web::MenuBuilder - building all sorts of menus
=head1 SYNOPSIS
 <%MenuBuilder
   base="/bits/top-menu"
   item.0="statistic"
   item.1="config"
   item.1.grayed
   item.2="password"
   item.2.grayed
   active="statistic"
 %>
 <%MenuBuilder
   base="/bits/top-menu"
   item.0="statistic"
   item.1="config"
   item.2="password"
   grayed="config,password"
   active="statistic"
 %>
=head1 DESCRIPTION
Assumes the following file structure at the `base':
 header           - static menu header (optional)
 footer           - static menu footer (optional)
 separator        - static menu items separator
 item-NAME-normal - normal item text
 item-NAME-grayed - grayed item text
 item-NAME-active - currently opened page
If "grayed" argument is "*" then all menu items are displayed in
"grayed" mode.
=cut
###############################################################################
package XAO::DO::Web::MenuBuilder;
use strict;
use XAO::Utils;
use XAO::Objects;
use XAO::Templates;
use base XAO::Objects->load(objname => 'Web::Page');
our $VERSION='2.002';
###############################################################################
sub display ($;%) {
    my $self=shift;
    my $args=get_args(\@_);
    ##
    # Base directory is required!
    #
    my $base=$args->{'base'} ||
        throw $self "display - no `base' defined";
    ##
    # Building the list of items to show
    #
    my %items;
    foreach my $item (keys %{$args}) {
        next unless $item =~ /^item.(\w+)$/;
        next unless $args->{$item};
        $items{$1}=$args->{$item};
    }
    ##
    # Now buiding the list of grayed out items
    #
    my %grayed;
    if($args->{'grayed'}) {
        if($args->{'grayed'} eq '*') {
            %grayed=map { $_ => 1 } values %items;
        }
        else {
            %grayed=map { $_ => 1 } split(/[,;\s]+/,$args->{'grayed'});
        }
    }
    else {
        foreach my $item (keys %items) {
            $grayed{$items{$item}}=1 if $args->{"item.$item.grayed"};
        }
    }
    ##
    # And finally displaying items.
    #
    my $page=$self->object;
    $page->display($args,{
        path => "$base/header",
    }) if XAO::Templates::filename("$base/header");
    my $first=1;
    my $sepexists=XAO::Templates::filename("$base/separator");
    foreach my $item (sort { ($a =~ /^\d+$/ && $b =~ /^\d+$/)
                                ? $a <=> $b
                                : $a cmp $b } keys %items) {
        my $name=$items{$item};
        $page->display(path => "$base/separator") if !$first && $sepexists;
        $first=0;
        my %params=(
            NORMAL  => '',
            ACTIVE  => '',
            GRAYED  => '',
        );
        my $subpath;
        if($grayed{$name}) {
            $subpath='grayed';
            $params{'GRAYED'}=1;
        }
        elsif(defined($args->{'active'}) && $name eq $args->{'active'}) {
            $subpath='active';
            $params{'ACTIVE'}=1;
        }
        else {
            $subpath='normal';
            $params{'NORMAL'}=1;
        }
        $params{'path'}="$base/item-$name-$subpath";
        if($subpath ne 'normal' && !XAO::Templates::filename($params{'path'})) {
            $params{'path'}="$base/item-$name-normal";
        }
        $page->display($args,\%params);
    }
    $page->display($args,{
        path => "$base/footer",
    }) if XAO::Templates::filename("$base/footer");
}
###############################################################################
1;
__END__
=head1 EXPORTS
Nothing.
=head1 AUTHOR
Copyright (c) 2005 Andrew Maltsev
Copyright (c) 2001-2004 Andrew Maltsev, XAO Inc.
<am@ejelta.com> -- http://ejelta.com/xao/
=head1 SEE ALSO
Recommended reading:
L<XAO::Web>,
L<XAO::DO::Web::Page>.