lib/Frey/Web.pm

package Frey::Web;
use Moose::Role;

with 'Frey::Backtrace';

use Frey::Types;

use Continuity::Widget::DomNode;
use Data::Dump qw/dump/;
use Carp qw/confess/;
use File::Slurp;

use Frey::Bookmarklet;
use Frey::ClassBrowser;

has 'head' => (
        is => 'rw',
        isa => 'ArrayRef[Str]',
        default => sub { [ 'static/frey.css' ] },
);

has 'status' => (
        is => 'rw',
        isa => 'ArrayRef[HashRef[Str]]',
        lazy => 1,
        default => sub { [
                { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
                { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
        ] },
);

has 'request_url' => (
        is => 'rw',
        isa => 'Uri', coerce => 1,
        default => '/',
);

has 'title' => (
        is => 'rw',
        isa => 'Str',
        lazy => 1,
        default => sub {
                my ($self) = @_;
                ref($self);
        },
);

has 'content_type' => (
        is => 'rw',
        isa => 'Str',
        default => 'text/html',
);

=head2 inline_smaller_than

Inline JavaScript and CSS smaller than this size into page reducing
round-trips to server.

=cut

has 'inline_smaller_than' => (
        is => 'rw',
        isa => 'Int',
        default => 10240,
);

sub dom2html {
#       warn "## dom2html ",dump( @_ );
        return Continuity::Widget::DomNode->create( @_ )->to_string;
}

sub _inline_path {
        my ( $self, $path ) = @_;
        -s $path < $self->inline_smaller_than;
}

sub _head_html {
        my $self = shift;
        my $out = '';
        foreach my $path ( @{ $self->head } ) {
                $path =~ s!^/!!;
                if ( $path =~ m/\.js$/ ) {
                        $out .= $self->_inline_path( $path ) ?
                                qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
                                qq|<script type="text/javascript" src="/$path"></script>|;
                } elsif ( $path =~ m/\.css$/ ) {
                        $out .= $self->_inline_path( $path ) ?
                                qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
                                qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
                } elsif ( $path =~ m{<.+>}s ) {
                        $out .= $path;
                } else {
                        confess "don't know how to render $path";
                }
                $out .= "\n";
        }
        return $out;
}

=head2 add_head

  $o->add_head( 'path/to/external.js' );

  my $size = $o->add_head( 'path/to/external.css' );

  $o->add_head( '<!-- html content -->' );

=cut

sub add_head {
        my ( $self, $path ) = @_;
        return if ! defined $path || $path eq '';
        $path =~ s!^/!!;

        if ( $path =~ m{<.*>}s ) {
                push @{ $self->head }, $path;
        } elsif ( -e $path ) {
                if ( $path =~ m/\.(?:js|css)$/ ) {
                        push @{ $self->head }, $path;
                } else {
                        confess "can't add_head( $path ) it's not js or css";
                }
                return -s $path;
        } else {
                confess "can't find $path: $!";
        }

}

our $reload_counter = 0;


=head2 page

  $self->page(
        title => 'page title',
        head  => '<!-- optional head markup -->',
        body  => '<b>Page Body</b>',
  );

=cut

sub page {
        my $self = shift;
        my $a = {@_};

        $reload_counter++;

        my $status_line = '';
        foreach my $part ( @{ $self->status } ) {
                if ( ref($part) ne 'HASH' ) {
                        warn "part not hash ",dump( $part ) ;
                        #$self->status( $part );
                        next;
                }
                foreach my $name ( keys %$part ) {
                        my $content = $part->{$name};
                        if ( ref($content) ) {
                                $content = '<code>' . dump($content) . '</code>';
                                my $l = length($content);
                                $content = qq|<span>$l bytes</span>| if $l > 1024;
                        } else {
                                $content = qq|<span>$content</span>|;
                        }
                        warn "### part [$name] = ", length( $content ), " bytes" if $self->debug;
                        $status_line .= qq|<span class="frey-popup">$name $content</span>\n|;
                }
        }

        my $url = $self->request_url;
        $url =~ s{\?reload=\d+}{};

        my $body = $a->{body};
        $body ||= $self->as_markup if $self->can('as_markup');
        if ( $self->content_type !~ m{html} ) {
                warn "# return only $self body ", $self->content_type;
                return $body
        } elsif ( ! defined $body ) {
                warn "# no body";
                $body = '<!-- no body -->';
        }

        my $html = join("\n",
                qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
                $self->_head_html,
                '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
                '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
                ( $a->{head} || '' ),
                qq|
                </head><body>
                $body
                <div class="frey-status-line">
                        <a href="/">Frey</a> $Frey::VERSION
                        <a href="?reload=$reload_counter"><code>$url</code></a>
                        $status_line
                </div>
            </body></html>
                |,
        );

        warn "## >>> page ",length($html), " bytes\n" if $self->debug;

        return $html;
}

sub error {
        my $self = shift;
        my $error = join(" ", @_);

        my @backtrace = $self->backtrace;
        $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;

        warn "ERROR: $error\n";
        $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
                {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
        $error =~ s{(via package ")([\w:]+)(")}
                {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;

        return qq|<pre class="frey-error">$error</pre>|;
}

1;
1	dpavlin	100	package Frey::Web;
2			use Moose::Role;
3
4	dpavlin	465	with 'Frey::Backtrace';
5
6	dpavlin	388	use Frey::Types;
7
8	dpavlin	100	use Continuity::Widget::DomNode;
9			use Data::Dump qw/dump/;
10	dpavlin	389	use Carp qw/confess/;
11	dpavlin	161	use File::Slurp;
12	dpavlin	100
13	dpavlin	410	use Frey::Bookmarklet;
14			use Frey::ClassBrowser;
15
16	dpavlin	156	has 'head' => (
17	dpavlin	121	is => 'rw',
18			isa => 'ArrayRef[Str]',
19	dpavlin	160	default => sub { [ 'static/frey.css' ] },
20	dpavlin	121	);
21
22	dpavlin	388	has 'status' => (
23			is => 'rw',
24			isa => 'ArrayRef[HashRef[Str]]',
25			lazy => 1,
26			default => sub { [
27	dpavlin	455	{ 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
28			{ 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
29	dpavlin	388	] },
30			);
31
32	dpavlin	392	has 'request_url' => (
33	dpavlin	388	is => 'rw',
34			isa => 'Uri', coerce => 1,
35			default => '/',
36			);
37
38	dpavlin	418	has 'title' => (
39			is => 'rw',
40			isa => 'Str',
41			lazy => 1,
42			default => sub {
43			my ($self) = @_;
44			ref($self);
45			},
46			);
47
48	dpavlin	448	has 'content_type' => (
49			is => 'rw',
50			isa => 'Str',
51			default => 'text/html',
52			);
53
54	dpavlin	206	=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	dpavlin	161	has 'inline_smaller_than' => (
62			is => 'rw',
63			isa => 'Int',
64			default => 10240,
65			);
66
67	dpavlin	100	sub dom2html {
68	dpavlin	106	# warn "## dom2html ",dump( @_ );
69	dpavlin	100	return Continuity::Widget::DomNode->create( @_ )->to_string;
70			}
71
72	dpavlin	161	sub _inline_path {
73			my ( $self, $path ) = @_;
74			-s $path < $self->inline_smaller_than;
75			}
76
77	dpavlin	156	sub _head_html {
78			my $self = shift;
79	dpavlin	121	my $out = '';
80	dpavlin	156	foreach my $path ( @{ $self->head } ) {
81	dpavlin	121	$path =~ s!^/!!;
82	dpavlin	156	if ( $path =~ m/\.js$/ ) {
83	dpavlin	161	$out .= $self->_inline_path( $path ) ?
84	dpavlin	163	qq\|<!-- $path --><script type="text/javascript">\n\| . read_file($path) . qq\|\n</script>\| :
85	dpavlin	161	qq\|<script type="text/javascript" src="/$path"></script>\|;
86	dpavlin	156	} elsif ( $path =~ m/\.css$/ ) {
87	dpavlin	161	$out .= $self->_inline_path( $path ) ?
88	dpavlin	163	qq\|<!-- $path --><style type="text/css">\n\| . read_file( $path ) . qq\|\n</style>\| :
89	dpavlin	161	qq\|<link type="text/css" rel="stylesheet" href="/$path" media="screen">\|;
90	dpavlin	446	} elsif ( $path =~ m{<.+>}s ) {
91	dpavlin	444	$out .= $path;
92	dpavlin	156	} else {
93			confess "don't know how to render $path";
94			}
95	dpavlin	163	$out .= "\n";
96	dpavlin	121	}
97			return $out;
98			}
99	dpavlin	100
100	dpavlin	154	=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	dpavlin	445	$o->add_head( '<!-- html content -->' );
107
108	dpavlin	154	=cut
109
110			sub add_head {
111			my ( $self, $path ) = @_;
112			return if ! defined $path \|\| $path eq '';
113			$path =~ s!^/!!;
114
115	dpavlin	446	if ( $path =~ m{<.*>}s ) {
116	dpavlin	444	push @{ $self->head }, $path;
117			} elsif ( -e $path ) {
118	dpavlin	156	if ( $path =~ m/\.(?:js\|css)$/ ) {
119			push @{ $self->head }, $path;
120	dpavlin	154	} else {
121			confess "can't add_head( $path ) it's not js or css";
122			}
123	dpavlin	444	return -s $path;
124	dpavlin	154	} else {
125			confess "can't find $path: $!";
126			}
127
128			}
129
130	dpavlin	142	our $reload_counter = 0;
131
132	dpavlin	183
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	dpavlin	121	sub page {
144	dpavlin	100	my $self = shift;
145	dpavlin	121	my $a = {@_};
146	dpavlin	100
147	dpavlin	142	$reload_counter++;
148
149	dpavlin	388	my $status_line = '';
150			foreach my $part ( @{ $self->status } ) {
151	dpavlin	422	if ( ref($part) ne 'HASH' ) {
152			warn "part not hash ",dump( $part ) ;
153			#$self->status( $part );
154			next;
155			}
156	dpavlin	388	foreach my $name ( keys %$part ) {
157	dpavlin	392	my $content = $part->{$name};
158			if ( ref($content) ) {
159	dpavlin	397	$content = '<code>' . dump($content) . '</code>';
160			my $l = length($content);
161			$content = qq\|<span>$l bytes</span>\| if $l > 1024;
162	dpavlin	392	} else {
163			$content = qq\|<span>$content</span>\|;
164			}
165			warn "### part [$name] = ", length( $content ), " bytes" if $self->debug;
166	dpavlin	397	$status_line .= qq\|<span class="frey-popup">$name $content</span>\n\|;
167	dpavlin	388	}
168			}
169
170	dpavlin	439	my $url = $self->request_url;
171			$url =~ s{\?reload=\d+}{};
172
173	dpavlin	460	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	dpavlin	448
183	dpavlin	388	my $html = join("\n",
184			qq\|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>\|,
185			$self->_head_html,
186	dpavlin	418	'<title>' . ( $self->title \|\| $a->{title} \|\| ref($self) ) . '</title>',
187	dpavlin	388	'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
188			( $a->{head} \|\| '' ),
189			qq\|
190	dpavlin	448	</head><body>
191			$body
192	dpavlin	388	<div class="frey-status-line">
193			<a href="/">Frey</a> $Frey::VERSION
194	dpavlin	439	<a href="?reload=$reload_counter"><code>$url</code></a>
195	dpavlin	388	$status_line
196	dpavlin	210	</div>
197			</body></html>
198	dpavlin	388	\|,
199			);
200	dpavlin	100
201	dpavlin	121	warn "## >>> page ",length($html), " bytes\n" if $self->debug;
202	dpavlin	100
203	dpavlin	121	return $html;
204	dpavlin	100	}
205
206	dpavlin	350	sub error {
207	dpavlin	397	my $self = shift;
208			my $error = join(" ", @_);
209	dpavlin	460
210	dpavlin	465	my @backtrace = $self->backtrace;
211			$error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
212	dpavlin	460
213			warn "ERROR: $error\n";
214	dpavlin	465	$error =~ s{at\s+(\S+)\s+line\s+(\d+)}
215			{at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
216			$error =~ s{(via package ")([\w:]+)(")}
217			{$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
218
219	dpavlin	350	return qq\|<pre class="frey-error">$error</pre>\|;
220			}
221
222	dpavlin	100	1;