Frey/View/NoPager.pm

package Frey::View::NoPager;
use Moose;

extends 'Frey';
with 'Frey::Web';
with 'Frey::Config';
with 'Frey::jQuery';

use Search::Estraier;
use JSON::Syck;
use Data::Dump qw/dump/;

has search => (
        documentation => 'Search for',
        is => 'rw',
        isa => 'Str',
#       required => 1,
        default => '',
);

has 'page' => (
        documentation => 'display page',
        is => 'rw',
        isa => 'Int',
        default => 1,
);

has 'on_page' => (
        documentation => 'numer of items on page',
        is => 'rw',
        isa => 'Int',
        default => 30,
);

has 'sort' => (
        is => 'rw',
        isa => 'Str',
        default => '',
);

sub results_as_markup {
        my ($self) = @_;

        my ( $search,$page ) = ( $self->search , $self->page );

        my $v = {
                search => $search,
                page => $page,
                max_page => $page,
                id => time() . rand(99),
        };

        sub next_page {
                my $self = shift;
                my $json = $self->html_escape( JSON::Syck::Dump( $v ) );

                my $message = join("\n", @_);

                # <textarea id="json" style="display:none">
                return qq|
                        <div id="next_page">
                                $message
                                <textarea id="json">
                                $json
                                </textarea>
                        </div>
                |
                ;
        }

        if (! $search || $search =~ m/^\s*$/) {
                $v->{status} = 'Enter search query';
                return $self->next_page;
        }

        $search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND|OR|\[|\])/);

        my $node = new Search::Estraier::Node(%{ $self->config->{estraier} });

        my $on_page = $self->on_page;
        my $skip = ( $page - 1 ) * $on_page;

        my $cond = new Search::Estraier::Condition;
        $cond->set_phrase( $search );
        $cond->set_max( $on_page * $page );     ## FIXME * $page is needed by hest 1.3.8
        $cond->set_skip( $skip );
        $cond->set_order( $self->sort ) if $self->sort;

        warn "INFO: estraier for '$search' page $page with $on_page items, first $skip";

        my $nres = $node->search($cond, ( $self->config->{estraier}->{depth} || 0 ) );

        my $out;

        if (defined($nres)) {

                $v->{hits} = $nres->hits;
                $v->{time} = $nres->hint('TIME');

                if ($v->{hits} == 0) {
                        $v->{status} = qq{<strong>No results for your search.</strong>};
                        return $self->next_page;
                } elsif ($nres->doc_num == 0) {
                        $v->{status} = qq{<strong>Error getting results for page $page.</strong>};
                        return $self->next_page('<strong>No results found.</strong>');
                }

                $v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page );

                $v->{status} = qq{
                        Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt>
                        in <em>$v->{time} s</em>
                };

                sub html_snippet {
                        my $text = shift || return;
                        my $out = '';
                        foreach my $s (split(/[\n\r]{2}/, $text)) {
                                $out .= ' ... ' if ($out);
                                my ($pre,$hit,$post) = split(/\n/,$s,3);
                                $hit =~ s/\t.*$//;
                                $out
                                 .= $self->html_escape( $pre )
                                 . '<b>'
                                 . $self->html_escape( $hit )
                                 . '</b>'
                                 . $self->html_escape( $post )
                                 ;
                        }
                        return $out;
                }

                sub attr_regex {
                        my ($rdoc,$attr) = @_;
                        my $text = $rdoc->attr( $attr );
                        return unless defined($text);

                        if (my $r = $self->config->{estraier}->{attr_regex}->{$attr} ) {
                                my $do = '$text =~ ' . $r . ';';
                                eval $do;
                                if ($@) {
                                        warn "eval $do failed: $@\n";
                                }
                        }
                        return $text;
                }

                my $result = q|
                        <div class="result">
                        <h1><% attr_regex( $rdoc, '@title' ) %></h1>
                        <p>
                        <% html_snippet( $rdoc->snippet ) %>
                        </p>
                        <span style="color: #888"><% $nr %></span>
                        <strong><% attr_regex( $rdoc, 'source' ) %></strong>
                        <em>
                        <% attr_regex( $rdoc, '@size' ) %> bytes
                        </em>
                        <% attr_regex( $rdoc, '@mdate' ) %>
                        <br/><a href="<% $uri %>"><tt><% $uri %></tt></a>
                        </div>
                |;

                my @result = split(/\n/, $result);
                warn "# result template has ", $#result + 1, " lines";

                # for each document in results
                for my $i ( 0 ... $nres->doc_num - 1 ) {

                        my $rdoc = $nres->get_doc($i);
                        my $uri = attr_regex( $rdoc, '@uri' );
                        my $nr = $skip + $i + 1;

                        map {
                                my $l = $_;
                                $l =~ s/<%(.+?)%>/eval "$1"/ge;
                                $out .= $l;
                        } @result;

                }

        } else {
                $out .= 'error: ' . $node->status;
        }

        if ($v->{page} == $v->{max_page}) {
                $out .= $self->next_page('<br/><strong>All results shown</strong>');
        } else {
                $out .= $self->next_page(
                        '<br/><strong>Loading results...</strong><br/>',
                        'If you are using the scroll bar, release the mouse to see more results.'
                );
        }

        warn "# v = ", dump( $v );

        return ( $out, $v->{status} ) if wantarray;

        $self->wrap_in_page( 0 ); # disable <body> and status bar for ajax call
        return $out;

}

sub as_markup {
        my ($self) = @_;

        $self->add_css('static/Frey/View/NoPager.css');
        $self->add_js ('static/Frey/View/NoPager.js');

        $self->add_js(q|
                $(document).ready( function() {
                        $.log.info('hook onchange to #search_form' );
                        $('#search_form').change( function() {
                                //logDebug('submit #search_form');
                                this.submit();
                        });
                });
        |);

        my ( $results, $status ) = $self->results_as_markup;

        my $html = join("\n",
        qq|
                <div id="search_form_div">
                        <form id="search_form" method="get">
                
                                <input autocomplete="off" name="search" type="input" value="|, $self->search, qq|">
                                |, $self->sort, qq|
                                <input type="submit" class="submit" value="search">

                                <span id="status" class="note">
                                        $status
                                </span>

                        </form>
                </div>

                <div style="margin-top: 3em;">
                <!-- Dynamic Content -->
                        $results

                        <!-- Back Button Content -->
                        <div style="position:absolute;top:0px;left:0px;visibility:hidden;" id="spacer">space</div>
                        <!-- footer at end of results -->
                        <div style="display:none;" id="footer">
                                Thanks for trying out no pager. Hope you like it.
                        </div>

                </div>

        |
        );

        return $html;
}

1;
1	dpavlin	763	package Frey::View::NoPager;
2			use Moose;
3
4			extends 'Frey';
5			with 'Frey::Web';
6			with 'Frey::Config';
7			with 'Frey::jQuery';
8
9			use Search::Estraier;
10			use JSON::Syck;
11			use Data::Dump qw/dump/;
12
13			has search => (
14	dpavlin	963	documentation => 'Search for',
15	dpavlin	763	is => 'rw',
16			isa => 'Str',
17	dpavlin	957	# required => 1,
18	dpavlin	765	default => '',
19	dpavlin	763	);
20
21	dpavlin	963	has 'page' => (
22			documentation => 'display page',
23	dpavlin	765	is => 'rw',
24	dpavlin	843	isa => 'Int',
25			default => 1,
26	dpavlin	765	);
27
28	dpavlin	963	has 'on_page' => (
29			documentation => 'numer of items on page',
30			is => 'rw',
31			isa => 'Int',
32			default => 30,
33			);
34
35	dpavlin	843	has 'sort' => (
36	dpavlin	765	is => 'rw',
37	dpavlin	843	isa => 'Str',
38	dpavlin	963	default => '',
39	dpavlin	765	);
40
41			sub results_as_markup {
42	dpavlin	957	my ($self) = @_;
43	dpavlin	763
44	dpavlin	963	my ( $search,$page ) = ( $self->search , $self->page );
45	dpavlin	763
46	dpavlin	963	my $v = {
47			search => $search,
48			page => $page,
49			max_page => $page,
50			id => time() . rand(99),
51			};
52
53	dpavlin	763	sub next_page {
54	dpavlin	957	my $self = shift;
55	dpavlin	963	my $json = $self->html_escape( JSON::Syck::Dump( $v ) );
56
57			my $message = join("\n", @_);
58
59			# <textarea id="json" style="display:none">
60			return qq\|
61			<div id="next_page">
62			$message
63			<textarea id="json">
64			$json
65			</textarea>
66			</div>
67			\|
68			;
69	dpavlin	763	}
70
71			if (! $search \|\| $search =~ m/^\s*$/) {
72			$v->{status} = 'Enter search query';
73	dpavlin	765	return $self->next_page;
74	dpavlin	763	}
75
76			$search = join(" AND ", split(/\s+/, $search)) unless ($search =~ m/(?:AND\|OR\|\[\|\])/);
77
78	dpavlin	765	my $node = new Search::Estraier::Node(%{ $self->config->{estraier} });
79	dpavlin	763
80	dpavlin	963	my $on_page = $self->on_page;
81	dpavlin	763	my $skip = ( $page - 1 ) * $on_page;
82
83			my $cond = new Search::Estraier::Condition;
84			$cond->set_phrase( $search );
85			$cond->set_max( $on_page * $page ); ## FIXME * $page is needed by hest 1.3.8
86			$cond->set_skip( $skip );
87	dpavlin	843	$cond->set_order( $self->sort ) if $self->sort;
88	dpavlin	763
89	dpavlin	963	warn "INFO: estraier for '$search' page $page with $on_page items, first $skip";
90
91	dpavlin	765	my $nres = $node->search($cond, ( $self->config->{estraier}->{depth} \|\| 0 ) );
92	dpavlin	763
93			my $out;
94
95			if (defined($nres)) {
96
97			$v->{hits} = $nres->hits;
98			$v->{time} = $nres->hint('TIME');
99
100			if ($v->{hits} == 0) {
101			$v->{status} = qq{<strong>No results for your search.</strong>};
102	dpavlin	765	return $self->next_page;
103	dpavlin	763	} elsif ($nres->doc_num == 0) {
104			$v->{status} = qq{<strong>Error getting results for page $page.</strong>};
105	dpavlin	765	return $self->next_page('<strong>No results found.</strong>');
106	dpavlin	763	}
107
108			$v->{max_page} = int( ($nres->hits + $on_page - 1) / $on_page );
109
110			$v->{status} = qq{
111			Got <b>$v->{hits}</b> results for <tt>$v->{search}</tt>
112			in <em>$v->{time} s</em>
113			};
114
115			sub html_snippet {
116			my $text = shift \|\| return;
117			my $out = '';
118			foreach my $s (split(/[\n\r]{2}/, $text)) {
119			$out .= ' ... ' if ($out);
120			my ($pre,$hit,$post) = split(/\n/,$s,3);
121			$hit =~ s/\t.*$//;
122	dpavlin	765	$out
123			.= $self->html_escape( $pre )
124			. '<b>'
125			. $self->html_escape( $hit )
126			. '</b>'
127			. $self->html_escape( $post )
128			;
129	dpavlin	763	}
130			return $out;
131			}
132
133			sub attr_regex {
134			my ($rdoc,$attr) = @_;
135			my $text = $rdoc->attr( $attr );
136			return unless defined($text);
137
138	dpavlin	765	if (my $r = $self->config->{estraier}->{attr_regex}->{$attr} ) {
139	dpavlin	763	my $do = '$text =~ ' . $r . ';';
140			eval $do;
141			if ($@) {
142			warn "eval $do failed: $@\n";
143			}
144			}
145			return $text;
146			}
147
148	dpavlin	957	my $result = q\|
149			<div class="result">
150			<h1><% attr_regex( $rdoc, '@title' ) %></h1>
151			<p>
152			<% html_snippet( $rdoc->snippet ) %>
153			</p>
154			<span style="color: #888"><% $nr %></span>
155			<strong><% attr_regex( $rdoc, 'source' ) %></strong>
156			<em>
157			<% attr_regex( $rdoc, '@size' ) %> bytes
158			</em>
159			<% attr_regex( $rdoc, '@mdate' ) %>
160			<br/><a href="<% $uri %>"><tt><% $uri %></tt></a>
161			</div>
162			\|;
163	dpavlin	763
164	dpavlin	957	my @result = split(/\n/, $result);
165			warn "# result template has ", $#result + 1, " lines";
166
167	dpavlin	763	# for each document in results
168			for my $i ( 0 ... $nres->doc_num - 1 ) {
169
170			my $rdoc = $nres->get_doc($i);
171			my $uri = attr_regex( $rdoc, '@uri' );
172			my $nr = $skip + $i + 1;
173
174			map {
175			my $l = $_;
176			$l =~ s/<%(.+?)%>/eval "$1"/ge;
177			$out .= $l;
178	dpavlin	957	} @result;
179	dpavlin	763
180			}
181
182			} else {
183			$out .= 'error: ' . $node->status;
184			}
185
186			if ($v->{page} == $v->{max_page}) {
187	dpavlin	765	$out .= $self->next_page('<br/><strong>All results shown</strong>');
188	dpavlin	763	} else {
189	dpavlin	765	$out .= $self->next_page(
190	dpavlin	763	'<br/><strong>Loading results...</strong><br/>',
191			'If you are using the scroll bar, release the mouse to see more results.'
192			);
193			}
194
195	dpavlin	963	warn "# v = ", dump( $v );
196	dpavlin	957
197	dpavlin	963	return ( $out, $v->{status} ) if wantarray;
198
199			$self->wrap_in_page( 0 ); # disable <body> and status bar for ajax call
200	dpavlin	763	return $out;
201
202			}
203
204			sub as_markup {
205			my ($self) = @_;
206
207	dpavlin	957	$self->add_css('static/Frey/View/NoPager.css');
208			$self->add_js ('static/Frey/View/NoPager.js');
209	dpavlin	763
210	dpavlin	858	$self->add_js(q\|
211			$(document).ready( function() {
212			$.log.info('hook onchange to #search_form' );
213			$('#search_form').change( function() {
214	dpavlin	763	//logDebug('submit #search_form');
215			this.submit();
216			});
217			});
218			\|);
219
220	dpavlin	963	my ( $results, $status ) = $self->results_as_markup;
221
222	dpavlin	957	my $html = join("\n",
223			qq\|
224	dpavlin	763	<div id="search_form_div">
225			<form id="search_form" method="get">
226
227	dpavlin	957	<input autocomplete="off" name="search" type="input" value="\|, $self->search, qq\|">
228			\|, $self->sort, qq\|
229			<input type="submit" class="submit" value="search">
230	dpavlin	763
231	dpavlin	957	<span id="status" class="note">
232	dpavlin	963	$status
233	dpavlin	957	</span>
234	dpavlin	763
235	dpavlin	957	</form>
236			</div>
237
238	dpavlin	763	<div style="margin-top: 3em;">
239			<!-- Dynamic Content -->
240	dpavlin	963	$results
241	dpavlin	763
242			<!-- Back Button Content -->
243			<div style="position:absolute;top:0px;left:0px;visibility:hidden;" id="spacer">space</div>
244			<!-- footer at end of results -->
245			<div style="display:none;" id="footer">
246			Thanks for trying out no pager. Hope you like it.
247			</div>
248
249			</div>
250
251	dpavlin	957	\|
252			);
253
254			return $html;
255	dpavlin	763	}
256
257			1;