/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Revision 543 - (hide annotations)
Wed Nov 26 19:43:03 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 11185 byte(s)
unify dumping code creating Frey::Web->dropdown and Frey::Web->popup
for easy access

cleanup backtrace and move it into Frey::Web
1 dpavlin 100 package Frey::Web;
2     use Moose::Role;
3    
4 dpavlin 388 use Frey::Types;
5    
6 dpavlin 100 use Continuity::Widget::DomNode;
7     use Data::Dump qw/dump/;
8 dpavlin 518 use Carp qw/confess cluck/;
9 dpavlin 161 use File::Slurp;
10 dpavlin 100
11 dpavlin 410 use Frey::Bookmarklet;
12     use Frey::ClassBrowser;
13 dpavlin 540 use Frey::INC;
14    
15 dpavlin 505 use Frey::SVK;
16 dpavlin 410
17 dpavlin 156 has 'head' => (
18 dpavlin 121 is => 'rw',
19     isa => 'ArrayRef[Str]',
20 dpavlin 160 default => sub { [ 'static/frey.css' ] },
21 dpavlin 121 );
22    
23 dpavlin 392 has 'request_url' => (
24 dpavlin 388 is => 'rw',
25     isa => 'Uri', coerce => 1,
26     default => '/',
27     );
28    
29 dpavlin 418 has 'title' => (
30     is => 'rw',
31     isa => 'Str',
32     lazy => 1,
33     default => sub {
34     my ($self) = @_;
35     ref($self);
36     },
37     );
38    
39 dpavlin 448 has 'content_type' => (
40     is => 'rw',
41     isa => 'Str',
42     default => 'text/html',
43 dpavlin 476 documentation => 'Content-type header',
44 dpavlin 448 );
45    
46 dpavlin 476 has 'dump_max_bytes' => (
47     is => 'rw',
48     isa => 'Int',
49     default => 4096,
50 dpavlin 543 documentation => 'maximum dump size sent to browser before truncation',
51 dpavlin 476 );
52    
53 dpavlin 161 has 'inline_smaller_than' => (
54     is => 'rw',
55     isa => 'Int',
56     default => 10240,
57 dpavlin 543 documentation => 'inline JavaScript and CSS to reduce round-trips',
58 dpavlin 161 );
59    
60 dpavlin 543 has 'html_dump_width' => (
61     documentation => 'crop longer lines in dumps',
62 dpavlin 535 is => 'rw',
63     isa => 'Int',
64 dpavlin 543 # required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
65     default => 128,
66 dpavlin 535 );
67    
68     my %escape = ('<'=>'&lt;', '>'=>'&gt;', '&'=>'&amp;', '"'=>'&quot;');
69     my $escape_re = join '|' => keys %escape;
70    
71     sub html_escape {
72     my ( $self, $html ) = @_;
73     $html =~ s/($escape_re)/$escape{$1}/g;
74     return $html;
75     }
76    
77     sub html_dump {
78 dpavlin 543 my ( $self, $dump ) = @_;
79     $dump = dump( $dump ) if ref($dump);
80     my $width = $self->html_dump_width;
81     $dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
82     $dump = $self->html_escape( $dump );
83     $dump =~ s{\Q...\E}{&hellip;}gs;
84     return "<code>$dump</code>";
85 dpavlin 535 }
86    
87 dpavlin 100 sub dom2html {
88 dpavlin 106 # warn "## dom2html ",dump( @_ );
89 dpavlin 100 return Continuity::Widget::DomNode->create( @_ )->to_string;
90     }
91    
92 dpavlin 161 sub _inline_path {
93     my ( $self, $path ) = @_;
94     -s $path < $self->inline_smaller_than;
95     }
96    
97 dpavlin 156 sub _head_html {
98     my $self = shift;
99 dpavlin 121 my $out = '';
100 dpavlin 156 foreach my $path ( @{ $self->head } ) {
101 dpavlin 121 $path =~ s!^/!!;
102 dpavlin 156 if ( $path =~ m/\.js$/ ) {
103 dpavlin 161 $out .= $self->_inline_path( $path ) ?
104 dpavlin 163 qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
105 dpavlin 161 qq|<script type="text/javascript" src="/$path"></script>|;
106 dpavlin 156 } elsif ( $path =~ m/\.css$/ ) {
107 dpavlin 161 $out .= $self->_inline_path( $path ) ?
108 dpavlin 163 qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
109 dpavlin 161 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
110 dpavlin 446 } elsif ( $path =~ m{<.+>}s ) {
111 dpavlin 444 $out .= $path;
112 dpavlin 156 } else {
113     confess "don't know how to render $path";
114     }
115 dpavlin 163 $out .= "\n";
116 dpavlin 121 }
117     return $out;
118     }
119 dpavlin 100
120 dpavlin 154 =head2 add_head
121    
122     $o->add_head( 'path/to/external.js' );
123    
124     my $size = $o->add_head( 'path/to/external.css' );
125    
126 dpavlin 445 $o->add_head( '<!-- html content -->' );
127    
128 dpavlin 154 =cut
129    
130     sub add_head {
131     my ( $self, $path ) = @_;
132     return if ! defined $path || $path eq '';
133     $path =~ s!^/!!;
134    
135 dpavlin 446 if ( $path =~ m{<.*>}s ) {
136 dpavlin 444 push @{ $self->head }, $path;
137     } elsif ( -e $path ) {
138 dpavlin 156 if ( $path =~ m/\.(?:js|css)$/ ) {
139     push @{ $self->head }, $path;
140 dpavlin 154 } else {
141     confess "can't add_head( $path ) it's not js or css";
142     }
143 dpavlin 444 return -s $path;
144 dpavlin 154 } else {
145     confess "can't find $path: $!";
146     }
147    
148     }
149    
150 dpavlin 142 our $reload_counter = 0;
151    
152 dpavlin 183
153     =head2 page
154    
155     $self->page(
156     title => 'page title',
157     head => '<!-- optional head markup -->',
158     body => '<b>Page Body</b>',
159     );
160    
161     =cut
162    
163 dpavlin 519 our @status;
164     sub status { @status };
165    
166 dpavlin 527 our $icon_html;
167    
168 dpavlin 543 sub popup { my $self = shift; $self->popup_dropdown('popup', @_); }
169     sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }
170 dpavlin 537
171 dpavlin 543 sub popup_dropdown {
172     my ( $self, $type, $name, $content, $full ) = @_;
173    
174 dpavlin 537 if ( ref($content) ) {
175 dpavlin 543 $content = $self->html_dump($content);
176     # my $l = length($content);
177     # $content = qq|<span>$l bytes</span>| if ! $full && $l > $self->dump_max_bytes;
178 dpavlin 537 } else {
179     $content = qq|<span>$content</span>|;
180     }
181    
182 dpavlin 543 warn "## $type [$name] = ", length( $content ), " bytes" if $self->debug;
183    
184     if ( $name =~ m{::} && ! $name =~ m{<(\w+).+?/\1>} ) {
185     return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
186     } else {
187     return qq|<span class="frey-$type">$name $content</span>\n|;
188     }
189 dpavlin 537 }
190    
191 dpavlin 121 sub page {
192 dpavlin 100 my $self = shift;
193 dpavlin 121 my $a = {@_};
194 dpavlin 100
195 dpavlin 519 warn "## page ",dump($a);
196    
197 dpavlin 142 $reload_counter++;
198    
199 dpavlin 388 my $status_line = '';
200 dpavlin 519
201     unshift @status, { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup };
202 dpavlin 537 # unshift @status, { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup };
203 dpavlin 540 unshift @status, { 'INC' => Frey::INC->new->as_markup };
204 dpavlin 519
205     foreach my $part ( @status ) {
206 dpavlin 388 foreach my $name ( keys %$part ) {
207 dpavlin 537 $status_line .= $self->popup( $name, $part->{$name} );
208 dpavlin 388 }
209     }
210    
211 dpavlin 439 my $url = $self->request_url;
212     $url =~ s{\?reload=\d+}{};
213    
214 dpavlin 460 my $body = $a->{body};
215     $body ||= $self->as_markup if $self->can('as_markup');
216     if ( $self->content_type !~ m{html} ) {
217     warn "# return only $self body ", $self->content_type;
218     return $body
219     } elsif ( ! defined $body ) {
220     warn "# no body";
221     $body = '<!-- no body -->';
222     }
223 dpavlin 448
224 dpavlin 532 $status_line .= $self->warnings_html;
225 dpavlin 482
226 dpavlin 477 my ($exit,$description) = ('exit','stop server');
227     ($exit,$description) = ('restart','restart server')
228     if $ENV{FREY_RESTART}; # tune labels on exit link
229    
230 dpavlin 473 my $right =
231     qq|
232     <span class="right">
233 dpavlin 519 <a title="reload $url" href="/reload$url">reload</a>
234 dpavlin 477 <a title="$description" href="/exit$url">$exit</a>
235 dpavlin 473 </span>
236     |;
237    
238 dpavlin 516 my $info = Frey::SVK->info;
239 dpavlin 505 my $revision = Frey::SVK->info->{Revision} || '';
240 dpavlin 516 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
241 dpavlin 505
242 dpavlin 527 $self->add_icon unless $icon_html;
243 dpavlin 524
244 dpavlin 388 my $html = join("\n",
245     qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
246     $self->_head_html,
247 dpavlin 418 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
248 dpavlin 388 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
249 dpavlin 527 ( $icon_html || '<!-- no icon -->' ),
250 dpavlin 388 ( $a->{head} || '' ),
251     qq|
252 dpavlin 448 </head><body>
253     $body
254 dpavlin 388 <div class="frey-status-line">
255 dpavlin 505 <a href="/">Frey</a> $Frey::VERSION $revision
256 dpavlin 388 $status_line
257 dpavlin 473 $right
258 dpavlin 210 </div>
259     </body></html>
260 dpavlin 388 |,
261     );
262 dpavlin 100
263 dpavlin 121 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
264 dpavlin 100
265 dpavlin 121 return $html;
266 dpavlin 100 }
267    
268 dpavlin 480 =head2 editor
269    
270     Create HTML editor link with optional line and title
271    
272     my $html = $self->editor( $class, $line, $title );
273    
274     =cut
275    
276     sub editor {
277     my ( $self, $class, $line, $title ) = @_;
278     confess "need class" unless $class;
279 dpavlin 519 if ( ! defined $title ) {
280     $title = "edit $class";
281     $title .= " line $line" if $line;
282     }
283     $line ||= 1;
284 dpavlin 480 qq|<a target="editor" href="/editor+$class+$line"| .
285     ( $title ? qq| title="$title"| : '' ) .
286     qq|>$class</a>|;
287     }
288    
289     =head2 editor_links
290    
291     Create HTML links to editor for perl error message
292    
293     my $html = $self->editor_links( $error )
294    
295     =cut
296    
297 dpavlin 468 sub editor_links {
298     my ( $self, $error ) = @_;
299    
300     $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
301     {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
302    
303     $error =~ s{(via package ")([\w:]+)(")}
304     {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
305    
306     return $error;
307     }
308    
309 dpavlin 350 sub error {
310 dpavlin 397 my $self = shift;
311     my $error = join(" ", @_);
312 dpavlin 460
313 dpavlin 465 my @backtrace = $self->backtrace;
314     $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
315 dpavlin 460
316     warn "ERROR: $error\n";
317 dpavlin 468 return
318     qq|<pre class="frey-error">|
319     . $self->editor_links( $error ) .
320     qq|</pre>|
321     ;
322 dpavlin 350 }
323    
324 dpavlin 507 sub add_status {
325     my ( $self, $data ) = @_;
326 dpavlin 519 push @status, $data;
327 dpavlin 507 }
328    
329 dpavlin 519 sub clean_status {
330     @status = ();
331 dpavlin 527 $icon_html = '';
332 dpavlin 519 }
333    
334     sub status_parts {
335     warn "## status parts ", dump( map { keys %$_ } @status );
336     }
337    
338 dpavlin 518 sub DEMOLISH {
339     my ( $self ) = @_;
340 dpavlin 529 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
341 dpavlin 518 }
342    
343 dpavlin 527 =head2 add_icon
344    
345     Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
346     Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
347    
348     =cut
349    
350 dpavlin 529 sub icon_path {
351     my ($self,$class,$variant) = @_;
352     my $icon = $class;
353 dpavlin 524 $icon =~ s{::}{/}g;
354 dpavlin 529 $icon .= "/$variant" if $variant;
355     my $path = 'static/icons/' . $icon . '.png';
356     if ( -e $path ) {
357     warn "# $class from $self icon_path $path";
358     return $path;
359     } else {
360     warn "TODO: add $path icon for $class";
361     return undef;
362     }
363     }
364 dpavlin 524
365 dpavlin 529 sub add_icon {
366     my ($self,$variant) = @_;
367 dpavlin 524
368 dpavlin 529 my $class = ref($self);
369     $class = $self->class if $self->can('class');
370     my $icon_path = $self->icon_path( $class, $variant ) || return;
371 dpavlin 524
372 dpavlin 529 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
373     warn "# using icon $icon_path";
374    
375 dpavlin 527 =for later
376    
377 dpavlin 529 # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
378     my $ico_path = $icon_path;
379     $ico_path =~ s{png$}{ico};
380     if ( ! -e $ico_path ) {
381     system "convert $icon_path $ico_path";
382     warn "# convert $icon_path $ico_path : $@";
383     }
384     $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;
385 dpavlin 524
386 dpavlin 527 =cut
387    
388 dpavlin 524 }
389    
390 dpavlin 532 my $warn_colors = {
391     '#' => '#444',
392     '##' => '#888',
393     };
394    
395     my $multiline_markers = {
396 dpavlin 535 '(' => ')',
397 dpavlin 532 '{' => '}',
398 dpavlin 535 '[' => ']',
399 dpavlin 532 '"' => '"',
400     };
401    
402     my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
403     warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
404    
405     sub log_path {
406     $Frey::Bootstrap::log_path || warn "no log_path?";
407     }
408    
409     sub warnings_html {
410     my ($self,$level) = shift;
411 dpavlin 535 $level ||= $self->debug,
412 dpavlin 532 my $path = $self->log_path;
413    
414     my $warnings;
415     my $line = 0;
416     my $multiline_end;
417    
418     open(my $log, '<', $path) || die "can't open $path: $!";
419     while(<$log>) {
420     chomp;
421     $line++;
422    
423     my $style = '';
424    
425 dpavlin 535 if ( $multiline_end ) {
426     if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
427 dpavlin 537 # warn "## $line end of $multiline_end in '$_'\n";
428 dpavlin 535 undef $multiline_end;
429     } else {
430 dpavlin 537 # warn "## $line skipped\n";
431 dpavlin 535 }
432     } elsif ( m{^(#*)\s+} ) {
433 dpavlin 532 my $l = $1 ? length($1) : 0;
434 dpavlin 535 if ( $l > $level ) {
435     undef $multiline_end;
436     $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
437 dpavlin 537 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
438 dpavlin 535 next;
439     }
440 dpavlin 532
441     $style = $warn_colors->{$1}
442     ? ' style="color:' . $warn_colors->{$1} . '"'
443     : '';
444    
445 dpavlin 535 my $msg = $self->html_escape( $_ );
446     my $spacer = ' ';
447 dpavlin 543 if ( length($msg) > $self->html_dump_width ) {
448     $msg = substr( $msg, 0, $self->html_dump_width );
449 dpavlin 535 $spacer = '&hellip;'
450     }
451     $msg =~ s{^\s}{&nbsp;}g;
452     $warnings .= qq|<tt$style>$msg</tt>$spacer<small><a target="editor" href="/editor+$path+$line">+$line</a></small><br/>|;
453 dpavlin 532 # FIXME <tt> should be <code> but CSS hates me
454     }
455     }
456     close($log) || die "can't close $path: $!";
457    
458     return
459     qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="open $path level $level">warn</a><span>|
460     . $self->editor_links( $warnings )
461     . qq|</span></span>|
462     ;
463     }
464    
465 dpavlin 543
466     =head2 backtrace
467    
468     Show backtrace with links to editor
469    
470     my @backtrace = $self->backtrace;
471    
472     =cut
473    
474     sub backtrace {
475     my ($self) = @_;
476    
477     my @backtrace;
478     foreach ( 0 .. 5 ) {
479     my (
480     $package,$path,$line
481     # subroutine hasargs
482     # wantarray evaltext is_require
483     # hints bitmask hinthash
484     ) = caller($_) or last;
485    
486     push @backtrace,
487     qq|via $package from $path <a target="editor" href="/editor+$path+$line">$path</a>|;
488     }
489     warn "# backtrace: ", dump( @backtrace ) if @backtrace;
490     return @backtrace;
491     }
492    
493 dpavlin 100 1;

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