browser: fix link and hover styling
[sheet.git] / browser.plp
index 49c3ec2307c4cfe5b6d9f80bcd59f5ab2465173a..d9da9820f577f23e28bf87164b72e1af9ac4cde1 100644 (file)
@@ -1,5 +1,7 @@
 <(common.inc.plp)><:
 use 5.010;
+use utf8;
+use List::Util qw(sum max);
 
 Html({
        title => 'browser compatibility cheat sheet',
@@ -7,94 +9,205 @@ Html({
        description =>
                "caniuse.",
        keywords => [qw'html css browser feature'],
-       stylesheet => [qw'light dark circus mono red'],
-       data => ['caniuse.js'],
+       stylesheet => [qw'circus dark mono red light'],
+       data => ['browser-support.inc.pl'],
 });
 
 :>
 <h1>Browser compatibility</h1>
 
-<p>Alternate view of Fyrd's <a href="http://caniuse.com/">when can I use...</a> site.</p>
+<p>Alternate view of Fyrd's <a href="http://caniuse.com/">when can I use...</a> page<:
+my ($canihas, $usage);
+given ($get{usage} // 'wm') {
+       when (!$_) {
+               # none
+       }
+       when (!/^\w+$/) {
+               printf "<p>Invalid browser usage data request: <em>%s</em>",
+                       'identifier must be alphanumeric name or <q>0</q>';
+       }
+       $canihas = do "browser-usage-$_.inc.pl" or do {
+               printf "<p>Browser usage data not found: <em>%s</em>", $! || $@;
+               break;
+       };
+       $usage = $_;
+       my $ref = $canihas->{-source} || 'unknown';
+       $ref = sprintf '<a href="%s">%s</a>', $_, $ref for $canihas->{-url} || ();
+       $ref .= " $_" for $canihas->{-date} || ();
+       print "\nwith $ref browser usage statistics";
+}
+:>.
+</p>
 
+<div id="browser">
 <:
-use JSON;
-use File::Slurp 'read_file';
-my $source = read_file('caniuse.js');
-for ($source) { # cleanup
-       # convert seperate variables to hash keys
-       s/\A/{/;
-       s/^caniuse\.(\w+) = /"$1":/gm;
-       s/;$/,/gm;
-       s/,\s*\Z/\n}/;
-       # fractions not supported by barekey
-       s/(?<=[,{]) (\d*\.\d) (?=:')/"$1"/gx;
-       # escapes not supported in singlequote
-       s{'((?:[^\\']+|\\.)*)'}{
-               my $_ = $1;
-               s/"/\\"/g;
-               s/\\'/'/g;
-               qq("$_");
-       }ge;
-}
-my $caniuse = from_json($source, {
-#      allow_singlequote => 1,
-       allow_barekey => 1,
-});
+my $caniuse = do 'browser-support.inc.pl' or die $! || $@;
 
 my %CSTATS = (
-       n => 'di-b',
-       y => 'di-a',
-       a => 'di-d',
-       j => 'di-prop',
-       p => 'di-prop',
-       'y x' => 'di-a',
+       'n'   => 'l1',
+       'y'   => 'l5',
+       'y x' => 'l4',
+       'a'   => 'l3',
+       'a x' => 'l3',
+       'p j' => 'l2',
+       'j'   => 'l2',
+       'p'   => 'l2',
+       'u'   => 'l0',
 );
 my %CSTATUS = (
-       unoff => 'di-rare', # unofficial
-       wd    => 'di-b', # draft
-       pr    => 'di-prop', # proposed
-       cr    => 'di-d', # candidate
-       rec   => 'di-a', # recommendation
-       ietf  => 'di-a', # standard
+       unoff => 'l1', # unofficial
+       wd    => 'l3', # draft
+       cr    => 'l4', # candidate
+       pr    => 'l4', # proposed
+       rec   => 'l5', # recommendation
+       other => 'l5', # non-w3
+       ietf  => 'l5', # standard
 );
-my @browsers = qw(trident gecko webkit_saf presto);
 my %versions;
 if (my ($somerow) = values %{ $caniuse->{data} }) {
        while (my ($browser, $row) = each %{ $somerow->{stats} }) {
                $versions{$browser} = [ sort { paddedver($a) cmp paddedver($b) } keys %$row ];
        }
 }
+my @browsers = grep { $versions{$_} }
+       qw(trident gecko webkit_saf ios_saf webkit_chr android presto op_mob op_mini);
+
+$canihas ||= {
+       map {
+               $_ => +{
+                       map {
+                               my $zero = $#$_ - 2;  # baseline index
+                               ($_->[$zero - 2] =>  .5), # past
+                               ($_->[$zero - 1] => 10 ), # previous
+                               ($_->[$zero + 2] =>  0 ), # future
+                               ($_->[$zero + 1] =>  .5), # next
+                               ($_->[$zero    ] => 30 ), # current
+                       } $caniuse->{agents}->{$_}->{versions}
+               }
+       } @browsers
+}; # fallback hash based on release semantics
+my $scorediv = (max(map { ref $_ eq 'HASH' && sum(values %$_) } values %$canihas) // 1) / 100;
 
-print '<table class="glyphs dimap">';
-print '<col>' x 2;
+print '<table class="mapped">';
+print '<col>' x 3;
 printf '<colgroup span="%d">', scalar @{ $versions{$_} } for @browsers;
 print "\n";
 
-print '<thead><tr>';
-print "<th>$_" for qw(feature status);
-printf '<th colspan="%d">%s',
-       scalar @{ $versions{$_} }, $caniuse->{agents}->{$_}->{browser}
-               for @browsers;
+my $header = join('',
+       '<tr>',
+       '<th colspan="3">feature',
+       (map {
+               sprintf('<th colspan="%d" title="%.1f%%">%s',
+                       scalar @{ $versions{$_} },
+                       sum(values %{ $canihas->{$_} }),
+                       do {
+                               my $name = $caniuse->{agents}->{$_}->{browser};
+                               length $name < 16 ? $name : $caniuse->{agents}->{$_}->{abbr};
+                       },
+               )
+       } @browsers),
+       '<th>%',
+);
+print '<thead>', $header;
 # preceding row without any colspan to work around gecko bug
-print '<tr>';
-print '<td>' x $_ for 2, map { scalar @{ $versions{$_} } } @browsers;
+print "\n<tr>";
+print '<td>' x 3;
+for my $browser (@browsers) {
+       printf('<td title="%.1f%%">%s',
+               $canihas->{$browser}->{$_}, showversions($_),
+       ) for @{ $versions{$browser} };
+}
+print '<td>' x 1;
 print "</thead>\n";
 
-for my $id (keys %{ $caniuse->{data} }) {
+sub featurescore {
+       # relative amount of support for given feature
+       state $statspts = { y=>10, 'y x'=>9, a=>5, 'a x'=>5, j=>2, 'p j'=>2, p=>1 };
+       my $rank = 0;
+       if (my $row = shift) {
+               if ($canihas) {
+                       while (my ($browser, $versions) = each %$row) {
+                               ref $versions eq 'HASH' or next;
+                               while (my ($version, $_) = each %$versions) {
+                                       $rank += $canihas->{$browser}->{$version} * $statspts->{$_};
+                               }
+                       }
+                       return $rank;
+               }
+
+               while (my ($browser, $vercols) = each %versions) {
+                       my $div = 0;  # multiplier exponent (decreased to lower value)
+                       my @vers = map { $row->{$browser}->{$_} } @$vercols;
+                       if (my $current = $caniuse->{agents}->{$browser}->{versions}->[-3]) {
+                               my @future;  # find upcoming releases (after current)
+                               for (reverse @$vercols) {
+                                       last if $_ eq $current;
+                                       push @future, pop @vers;
+                                       $_ eq 'u' and $_ = $vers[-1] for $future[-1];  # inherit latest value if unknown
+                               }
+                               splice @vers, -1, 0, @future;  # move ahead to decrease precedence
+                       }
+                       $rank += $statspts->{$_} * 2**($div--) for reverse @vers;
+               }
+       }
+       return $rank;
+}
+
+for my $id (sort {
+           featurescore($caniuse->{data}->{$b}->{stats})
+       <=> featurescore($caniuse->{data}->{$a}->{stats})
+} keys %{ $caniuse->{data} }) {
        my $row = $caniuse->{data}->{$id};
        my $data = $row->{stats} or next;  # skip metadata [summary]
        printf '<tr id="%s">', $id;
-       printf '<th title="%s">%s', $row->{description}, $row->{title};
-       printf '<td title="%s" class="%s">%s', $caniuse->{statuses}->{$_}, $CSTATUS{$_} // '', $_ for $row->{status};
+       for ($row->{categories}) {
+               my $cell = $_ ? lc $_->[0] : '-';
+               print '<th>', $cell;
+       }
+       print '<td>', map {
+               sprintf('<a href="%s" onclick="%s">%s</a>',
+                       "#$id",
+                       sprintf("try { %s; return false } catch(err) { return true }",
+                               "document.getElementById('$id').classList.toggle('target')",
+                       ),
+                       $_,
+               );
+       } $row->{title};
+       print '<div class=aside>';
+       s/\.?$/./, print "<p>$_</p>" for map { ref $_ ? @$_ : $_ || () }
+               $row->{description}, $row->{notes};
+       printf 'Resources: %s.', join(', ',
+               map { qq(<a href="$_->{url}">$_->{title}</a>) } @$_
+       ) for grep { @$_ } $row->{links} // ();
+       print '</div>';
+       for ($row->{status}) {
+               my $cell = $_ // '-';
+               $cell = sprintf '<a href="%s">%s</a>', $_, $cell for $row->{spec} // ();
+               printf '<td title="%s" class="l %s">%s',
+                       $caniuse->{statuses}->{$_}, $CSTATUS{$_} // '', $cell;
+       }
        for my $browser (@browsers) {
                my ($prev, @span);
                for my $ver (@{ $versions{$browser} }, undef) {
                        unless (!defined $prev
-                       or $data->{$browser}->{$prev} ~~ $data->{$browser}->{$ver}) {
-                               printf '<td class="%s" colspan="%d">%s',
-                                       $CSTATS{ $data->{$browser}->{$prev} },
+                       or ref $data->{$browser} eq 'HASH'
+                       && $data->{$browser}->{$prev} ~~ $data->{$browser}->{$ver}) {
+                               my $usage = sum(map { $canihas->{$browser}->{$_} } @span);
+                               printf '<td class="%s" colspan="%d" title="%.1f%%">%s',
+                                       join(' ',
+                                               X => $CSTATS{
+                                                       ref $data->{$browser} ne 'HASH' ? 'u' :
+                                                               $data->{$browser}->{$prev} // 'u'
+                                               },
+                                               !$usage ? ('p0') : ('p',
+                                                       sprintf('p%01d', $usage / 10),
+                                                       sprintf('p%02d', $usage),
+                                               ),
+                                               sprintf('pp%02d', $usage / $scorediv),
+                                       ),
                                        scalar @span,
-                                       join('‒', $span[0], @span > 1 ? $span[-1] : ());
+                                       $usage,
+                                       showversions(@span),
                                undef $prev;
                                @span = ();
                        }
@@ -102,30 +215,66 @@ for my $id (keys %{ $caniuse->{data} }) {
                        $prev = $ver;
                }
        }
+       state $maxscore = featurescore({  # yes for every possible version
+               map { $_ => { map {$_ => 'y'} @{$versions{$_}} } } keys %versions
+       });
+       print '<td>', int featurescore($caniuse->{data}->{$id}->{stats}) / $maxscore * 100;
 }
+print '<tfoot>', $header;
 print '</table>';
 
 sub paddedver {
        # normalised version number comparable as string (cmp)
        shift =~ /^(\d*)(.*)/;
-       return sprintf('%02d', $1) . $2;
+       return sprintf('%02d', $1 || 0) . $2;
 }
 
-:>
+sub showversions {
+       my @span = ($_[0], @_>1 ? $_[-1] : ());
+       for (@span) {
+               s/^\./0./;
+               s/x$/.*/;
+       }
+       return join('‒', @span);
+}
+
+:></div>
+
 <hr>
 
 <div class="legend">
        <table class="glyphs"><tr>
-       <td class="X di-a">yes
-       <td class="X di-d">almost
-       <td class="X di-prop">plugin or js
-       <td class="X di-b">no
+       <td class="X l5">supported
+       <td class="X l4">prefixed
+       <td class="X l3">partial
+       <td class="X l2">external (js/plugin)
+       <td class="X l1">missing
+       <td class="X l0">unknown
        </table>
 
+       <p><: if ($usage) { :>
+               Usage percentage:
+               <span class="  p0">0</span> -
+               <span class="p p0 p00">.01</span> -
+               <span class="p p0 p05">1-9</span> -
+               <span class="p p1">10</span> -
+               <span class="p p2">20</span> -
+               <span class="p p5">majority</span>
+<: } else { :>
+               <table class="glyphs"><tr>
+                       <td class="p p1">previous version</td>
+                       <td class="p p3">current</td>
+                       <td class="p p0 p00">upcoming (within months)</td>
+                       <td class="  p0">future (within a year)</td>
+               </table>
+<: } :>        </p>
+
        <div class="right">
                <ul class="legend legend-set">
                <li>default <strong>style</strong> is
                        <:= defined $get{style} && 'set to ' :><em><:= $style :></em>
+               <li><strong>usage</strong> source is
+                       <:= !defined $get{usage} && 'default ' :><:= defined $usage ? "<em>$usage</em>" : 'not included (<em>0</em>)' :>
                </ul>
        </div>
 </div>