/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Contents of /branches/zimbardo/lib/Frey/Web.pm

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Revision 468 - (show annotations)
Wed Nov 19 19:59:52 2008 UTC (15 years, 5 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 5062 byte(s)
collect warn output by traping $SIG{__WARN__}
and show it in status line with editor_links
1 package Frey::Web;
2 use Moose::Role;
3
4 with 'Frey::Backtrace';
5
6 use Frey::Types;
7
8 use Continuity::Widget::DomNode;
9 use Data::Dump qw/dump/;
10 use Carp qw/confess/;
11 use File::Slurp;
12
13 use Frey::Bookmarklet;
14 use Frey::ClassBrowser;
15
16 has 'head' => (
17 is => 'rw',
18 isa => 'ArrayRef[Str]',
19 default => sub { [ 'static/frey.css' ] },
20 );
21
22 has 'status' => (
23 is => 'rw',
24 isa => 'ArrayRef[HashRef[Str]]',
25 lazy => 1,
26 default => sub { [
27 { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
28 { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
29 ] },
30 );
31
32 has 'request_url' => (
33 is => 'rw',
34 isa => 'Uri', coerce => 1,
35 default => '/',
36 );
37
38 has 'title' => (
39 is => 'rw',
40 isa => 'Str',
41 lazy => 1,
42 default => sub {
43 my ($self) = @_;
44 ref($self);
45 },
46 );
47
48 has 'content_type' => (
49 is => 'rw',
50 isa => 'Str',
51 default => 'text/html',
52 );
53
54 =head2 inline_smaller_than
55
56 Inline JavaScript and CSS smaller than this size into page reducing
57 round-trips to server.
58
59 =cut
60
61 has 'inline_smaller_than' => (
62 is => 'rw',
63 isa => 'Int',
64 default => 10240,
65 );
66
67 sub dom2html {
68 # warn "## dom2html ",dump( @_ );
69 return Continuity::Widget::DomNode->create( @_ )->to_string;
70 }
71
72 sub _inline_path {
73 my ( $self, $path ) = @_;
74 -s $path < $self->inline_smaller_than;
75 }
76
77 sub _head_html {
78 my $self = shift;
79 my $out = '';
80 foreach my $path ( @{ $self->head } ) {
81 $path =~ s!^/!!;
82 if ( $path =~ m/\.js$/ ) {
83 $out .= $self->_inline_path( $path ) ?
84 qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
85 qq|<script type="text/javascript" src="/$path"></script>|;
86 } elsif ( $path =~ m/\.css$/ ) {
87 $out .= $self->_inline_path( $path ) ?
88 qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
89 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
90 } elsif ( $path =~ m{<.+>}s ) {
91 $out .= $path;
92 } else {
93 confess "don't know how to render $path";
94 }
95 $out .= "\n";
96 }
97 return $out;
98 }
99
100 =head2 add_head
101
102 $o->add_head( 'path/to/external.js' );
103
104 my $size = $o->add_head( 'path/to/external.css' );
105
106 $o->add_head( '<!-- html content -->' );
107
108 =cut
109
110 sub add_head {
111 my ( $self, $path ) = @_;
112 return if ! defined $path || $path eq '';
113 $path =~ s!^/!!;
114
115 if ( $path =~ m{<.*>}s ) {
116 push @{ $self->head }, $path;
117 } elsif ( -e $path ) {
118 if ( $path =~ m/\.(?:js|css)$/ ) {
119 push @{ $self->head }, $path;
120 } else {
121 confess "can't add_head( $path ) it's not js or css";
122 }
123 return -s $path;
124 } else {
125 confess "can't find $path: $!";
126 }
127
128 }
129
130 our $reload_counter = 0;
131
132
133 =head2 page
134
135 $self->page(
136 title => 'page title',
137 head => '<!-- optional head markup -->',
138 body => '<b>Page Body</b>',
139 );
140
141 =cut
142
143 sub page {
144 my $self = shift;
145 my $a = {@_};
146
147 $reload_counter++;
148
149 my $status_line = '';
150 foreach my $part ( @{ $self->status } ) {
151 if ( ref($part) ne 'HASH' ) {
152 warn "part not hash ",dump( $part ) ;
153 #$self->status( $part );
154 next;
155 }
156 foreach my $name ( keys %$part ) {
157 my $content = $part->{$name};
158 if ( ref($content) ) {
159 $content = '<code>' . dump($content) . '</code>';
160 my $l = length($content);
161 $content = qq|<span>$l bytes</span>| if $l > 1024;
162 } else {
163 $content = qq|<span>$content</span>|;
164 }
165 warn "### part [$name] = ", length( $content ), " bytes" if $self->debug;
166 $status_line .= qq|<span class="frey-popup">$name $content</span>\n|;
167 }
168 }
169
170 my $url = $self->request_url;
171 $url =~ s{\?reload=\d+}{};
172
173 my $body = $a->{body};
174 $body ||= $self->as_markup if $self->can('as_markup');
175 if ( $self->content_type !~ m{html} ) {
176 warn "# return only $self body ", $self->content_type;
177 return $body
178 } elsif ( ! defined $body ) {
179 warn "# no body";
180 $body = '<!-- no body -->';
181 }
182
183 $status_line
184 .= qq|<span class="frey-popup">warn<code>|
185 . $self->editor_links( join("", $self->warnings ) )
186 . qq|</code></span>|
187 if $self->warnings;
188
189 my $html = join("\n",
190 qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
191 $self->_head_html,
192 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
193 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
194 ( $a->{head} || '' ),
195 qq|
196 </head><body>
197 $body
198 <div class="frey-status-line">
199 <a href="/">Frey</a> $Frey::VERSION
200 <a href="?reload=$reload_counter"><code>$url</code></a>
201 $status_line
202 </div>
203 </body></html>
204 |,
205 );
206
207 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
208
209 return $html;
210 }
211
212 sub editor_links {
213 my ( $self, $error ) = @_;
214
215 $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
216 {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
217
218 $error =~ s{(via package ")([\w:]+)(")}
219 {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
220
221 return $error;
222 }
223
224 sub error {
225 my $self = shift;
226 my $error = join(" ", @_);
227
228 my @backtrace = $self->backtrace;
229 $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
230
231 warn "ERROR: $error\n";
232 return
233 qq|<pre class="frey-error">|
234 . $self->editor_links( $error ) .
235 qq|</pre>|
236 ;
237 }
238
239 1;

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