lib/Frey/Web.pm

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

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;
        foreach ( 0 .. 5 ) {
                my @caller = caller($_) or last;
                my @description = ( qw/
                        package filename line
                        subroutine hasargs
                        wantarray evaltext is_require
                        hints bitmask hinthash
                /);
                push @backtrace, join(' ',
                        map {
                                $description[$_] . ': ' . dump $caller[$_]
                        } ( 0 .. $#caller )
                );
        }
        if ( @backtrace ) {
                warn "# append backtrace: ", dump( @backtrace );
                $error .= "\n\t" . join( "\n\t", @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	388	use Frey::Types;
5
6	dpavlin	100	use Continuity::Widget::DomNode;
7			use Data::Dump qw/dump/;
8	dpavlin	389	use Carp qw/confess/;
9	dpavlin	161	use File::Slurp;
10	dpavlin	100
11	dpavlin	410	use Frey::Bookmarklet;
12			use Frey::ClassBrowser;
13
14	dpavlin	156	has 'head' => (
15	dpavlin	121	is => 'rw',
16			isa => 'ArrayRef[Str]',
17	dpavlin	160	default => sub { [ 'static/frey.css' ] },
18	dpavlin	121	);
19
20	dpavlin	388	has 'status' => (
21			is => 'rw',
22			isa => 'ArrayRef[HashRef[Str]]',
23			lazy => 1,
24			default => sub { [
25	dpavlin	455	{ 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
26			{ 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
27	dpavlin	388	] },
28			);
29
30	dpavlin	392	has 'request_url' => (
31	dpavlin	388	is => 'rw',
32			isa => 'Uri', coerce => 1,
33			default => '/',
34			);
35
36	dpavlin	418	has 'title' => (
37			is => 'rw',
38			isa => 'Str',
39			lazy => 1,
40			default => sub {
41			my ($self) = @_;
42			ref($self);
43			},
44			);
45
46	dpavlin	448	has 'content_type' => (
47			is => 'rw',
48			isa => 'Str',
49			default => 'text/html',
50			);
51
52	dpavlin	206	=head2 inline_smaller_than
53
54			Inline JavaScript and CSS smaller than this size into page reducing
55			round-trips to server.
56
57			=cut
58
59	dpavlin	161	has 'inline_smaller_than' => (
60			is => 'rw',
61			isa => 'Int',
62			default => 10240,
63			);
64
65	dpavlin	100	sub dom2html {
66	dpavlin	106	# warn "## dom2html ",dump( @_ );
67	dpavlin	100	return Continuity::Widget::DomNode->create( @_ )->to_string;
68			}
69
70	dpavlin	161	sub _inline_path {
71			my ( $self, $path ) = @_;
72			-s $path < $self->inline_smaller_than;
73			}
74
75	dpavlin	156	sub _head_html {
76			my $self = shift;
77	dpavlin	121	my $out = '';
78	dpavlin	156	foreach my $path ( @{ $self->head } ) {
79	dpavlin	121	$path =~ s!^/!!;
80	dpavlin	156	if ( $path =~ m/\.js$/ ) {
81	dpavlin	161	$out .= $self->_inline_path( $path ) ?
82	dpavlin	163	qq\|<!-- $path --><script type="text/javascript">\n\| . read_file($path) . qq\|\n</script>\| :
83	dpavlin	161	qq\|<script type="text/javascript" src="/$path"></script>\|;
84	dpavlin	156	} elsif ( $path =~ m/\.css$/ ) {
85	dpavlin	161	$out .= $self->_inline_path( $path ) ?
86	dpavlin	163	qq\|<!-- $path --><style type="text/css">\n\| . read_file( $path ) . qq\|\n</style>\| :
87	dpavlin	161	qq\|<link type="text/css" rel="stylesheet" href="/$path" media="screen">\|;
88	dpavlin	446	} elsif ( $path =~ m{<.+>}s ) {
89	dpavlin	444	$out .= $path;
90	dpavlin	156	} else {
91			confess "don't know how to render $path";
92			}
93	dpavlin	163	$out .= "\n";
94	dpavlin	121	}
95			return $out;
96			}
97	dpavlin	100
98	dpavlin	154	=head2 add_head
99
100			$o->add_head( 'path/to/external.js' );
101
102			my $size = $o->add_head( 'path/to/external.css' );
103
104	dpavlin	445	$o->add_head( '<!-- html content -->' );
105
106	dpavlin	154	=cut
107
108			sub add_head {
109			my ( $self, $path ) = @_;
110			return if ! defined $path \|\| $path eq '';
111			$path =~ s!^/!!;
112
113	dpavlin	446	if ( $path =~ m{<.*>}s ) {
114	dpavlin	444	push @{ $self->head }, $path;
115			} elsif ( -e $path ) {
116	dpavlin	156	if ( $path =~ m/\.(?:js\|css)$/ ) {
117			push @{ $self->head }, $path;
118	dpavlin	154	} else {
119			confess "can't add_head( $path ) it's not js or css";
120			}
121	dpavlin	444	return -s $path;
122	dpavlin	154	} else {
123			confess "can't find $path: $!";
124			}
125
126			}
127
128	dpavlin	142	our $reload_counter = 0;
129
130	dpavlin	183
131			=head2 page
132
133			$self->page(
134			title => 'page title',
135			head => '<!-- optional head markup -->',
136			body => '<b>Page Body</b>',
137			);
138
139			=cut
140
141	dpavlin	121	sub page {
142	dpavlin	100	my $self = shift;
143	dpavlin	121	my $a = {@_};
144	dpavlin	100
145	dpavlin	142	$reload_counter++;
146
147	dpavlin	388	my $status_line = '';
148			foreach my $part ( @{ $self->status } ) {
149	dpavlin	422	if ( ref($part) ne 'HASH' ) {
150			warn "part not hash ",dump( $part ) ;
151			#$self->status( $part );
152			next;
153			}
154	dpavlin	388	foreach my $name ( keys %$part ) {
155	dpavlin	392	my $content = $part->{$name};
156			if ( ref($content) ) {
157	dpavlin	397	$content = '<code>' . dump($content) . '</code>';
158			my $l = length($content);
159			$content = qq\|<span>$l bytes</span>\| if $l > 1024;
160	dpavlin	392	} else {
161			$content = qq\|<span>$content</span>\|;
162			}
163			warn "### part [$name] = ", length( $content ), " bytes" if $self->debug;
164	dpavlin	397	$status_line .= qq\|<span class="frey-popup">$name $content</span>\n\|;
165	dpavlin	388	}
166			}
167
168	dpavlin	439	my $url = $self->request_url;
169			$url =~ s{\?reload=\d+}{};
170
171	dpavlin	460	my $body = $a->{body};
172			$body \|\|= $self->as_markup if $self->can('as_markup');
173			if ( $self->content_type !~ m{html} ) {
174			warn "# return only $self body ", $self->content_type;
175			return $body
176			} elsif ( ! defined $body ) {
177			warn "# no body";
178			$body = '<!-- no body -->';
179			}
180	dpavlin	448
181	dpavlin	388	my $html = join("\n",
182			qq\|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>\|,
183			$self->_head_html,
184	dpavlin	418	'<title>' . ( $self->title \|\| $a->{title} \|\| ref($self) ) . '</title>',
185	dpavlin	388	'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
186			( $a->{head} \|\| '' ),
187			qq\|
188	dpavlin	448	</head><body>
189			$body
190	dpavlin	388	<div class="frey-status-line">
191			<a href="/">Frey</a> $Frey::VERSION
192	dpavlin	439	<a href="?reload=$reload_counter"><code>$url</code></a>
193	dpavlin	388	$status_line
194	dpavlin	210	</div>
195			</body></html>
196	dpavlin	388	\|,
197			);
198	dpavlin	100
199	dpavlin	121	warn "## >>> page ",length($html), " bytes\n" if $self->debug;
200	dpavlin	100
201	dpavlin	121	return $html;
202	dpavlin	100	}
203
204	dpavlin	350	sub error {
205	dpavlin	397	my $self = shift;
206			my $error = join(" ", @_);
207	dpavlin	460
208			my @backtrace;
209			foreach ( 0 .. 5 ) {
210			my @caller = caller($_) or last;
211			my @description = ( qw/
212			package filename line
213			subroutine hasargs
214			wantarray evaltext is_require
215			hints bitmask hinthash
216			/);
217			push @backtrace, join(' ',
218			map {
219			$description[$_] . ': ' . dump $caller[$_]
220			} ( 0 .. $#caller )
221			);
222			}
223			if ( @backtrace ) {
224			warn "# append backtrace: ", dump( @backtrace );
225			$error .= "\n\t" . join( "\n\t", @backtrace );
226			}
227
228			warn "ERROR: $error\n";
229	dpavlin	407	$error =~ s{at\s+(\S+)\s+line\s+(\d+)}{at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
230	dpavlin	417	$error =~ s{(via package ")([\w:]+)(")}{$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
231	dpavlin	350	return qq\|<pre class="frey-error">$error</pre>\|;
232			}
233
234	dpavlin	100	1;