CSS classes (for user-supplied CSS)
-----------------------------------
-span.q - quoted text in email messages
-TODO: consider using highlight(1) via libhighlight-perl in Debian,
- optionally
-...
+See examples in contrib/css/ and lib/PublicInbox/WwwText.pm
+(or https://public-inbox.org/meta/_/text/color/ soon)
lib/PublicInbox/Spawn.pm
lib/PublicInbox/SpawnPP.pm
lib/PublicInbox/Unsubscribe.pm
+lib/PublicInbox/UserContent.pm
lib/PublicInbox/V2Writable.pm
lib/PublicInbox/View.pm
lib/PublicInbox/ViewDiff.pm
check:: pure_all check-manifest
\$(EATMYDATA) prove -lv -j\$(N)
+lib/PublicInbox/UserContent.pm :: contrib/css/216dark.css
+ @\$(PERL) -I lib \$@ \$<
+
EOF
}
* linkify thread skeletons better
https://public-inbox.org/git/6E3699DEA672430CAEA6DEFEDE6918F4@PhilipOakley/
-* generate sample CSS for use with userContent.css/dillo/etc
-
* streaming Email::MIME replacement: currently we generate many
allocations/strings for headers we never look at and slurp
entire message bodies into memory.
--- /dev/null
+# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# Self-updating module containing a sample CSS for client-side
+# customization by users of public-inbox. Used by Makefile.PL
+package PublicInbox::UserContent;
+use strict;
+use warnings;
+
+# this sub is updated automatically:
+sub CSS () {
+ <<'_'
+ /*
+ * Dark color scheme using 216 web-safe colors, inspired
+ * somewhat by the default color scheme in mutt.
+ * It reduces eyestrain for me, and energy usage for all:
+ * https://en.wikipedia.org/wiki/Light-on-dark_color_scheme
+ */
+ * { background:#000; color:#ccc }
+
+ /*
+ * Underlined links add visual noise which make them hard-to-read.
+ * Use colors to make them stand out, instead.
+ */
+ a { color:#69f; text-decoration:none }
+ a:visited { color:#96f }
+
+ /* quoted text gets a different color */
+ *.q { color:#09f }
+
+ /*
+ * these may be used with cgit, too
+ * (cgit uses <div>, public-inbox uses <span>)
+ */
+ *.add { color:#0ff }
+ *.del { color:#f0f }
+ *.head { color:#fff }
+ *.hunk { color:#c93 }
+_
+}
+# end of auto-updated sub
+
+# return a sample CSS
+sub sample ($$) {
+ my ($ibx, $env) = @_;
+ my $url_prefix = $ibx->base_url($env);
+ my $preamble = <<"";
+/*
+ * Firefox users: this goes in \$PROFILE_FOLDER/chrome/userContent.css
+ * where \$PROFILE_FOLDER is platform-specific
+ *
+ * cf. http://kb.mozillazine.org/UserContent.css
+ * http://kb.mozillazine.org/Profile_folder_-_Firefox
+ *
+ * Users of dillo can remove the entire lines with "moz-only"
+ * in them and place the resulting file in ~/.dillo/style.css
+ */
+\@-moz-document url-prefix($url_prefix) { /* moz-only */
+
+ $preamble . CSS() . "\n} /* moz-only */\n";
+}
+
+# Auto-update this file based on the contents of a CSS file:
+# usage: perl -I lib __FILE__ contrib/css/216dark.css
+# (See Makefile.PL)
+if (scalar(@ARGV) == 1 && -r __FILE__) {
+ use autodie;
+ open my $ro, '<', $ARGV[0];
+ my $css = do { local $/; <$ro> };
+ $css =~ s/^([ \t]*\S)/\t$1/smg;
+ open my $rw, '+<', __FILE__;
+ my $out = do { local $/; <$rw> };
+ $out =~ s/^sub CSS.*^_\n\}/sub CSS () {\n\t<<'_'\n${css}_\n}/sm;
+ seek $rw, 0, 0;
+ print $rw $out;
+}
+
+1;
use PublicInbox::MID qw(mid_escape);
require PublicInbox::Git;
use PublicInbox::GitHTTPBackend;
+use PublicInbox::UserContent;
# TODO: consider a routing tree now that we have more endpoints:
our $INBOX_RE = qr!\A/([\w\-][\w\.\-]*)!;
} elsif ($path_info =~ m!$INBOX_RE/_/text(?:/(.*))?\z!o) {
get_text($ctx, $1, $2);
} elsif ($path_info =~ m!$INBOX_RE/([\w\-\.]+)\.css\z!o) {
- get_css($self, $2);
+ get_css($ctx, $1, $2);
} elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s/\z!o) {
get_vcs_object($ctx, $1, $2);
} elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s/([\w\.\-]+)\z!o) {
# CSS is configured globally for all inboxes, but we access them on
# a per-inbox basis. This allows administrators to setup per-inbox
# static routes to intercept the request before it hits PSGI
-sub get_css ($$) {
- my ($self, $key) = @_;
+sub get_css ($$$) {
+ my ($ctx, $inbox, $key) = @_;
+ my $r404 = invalid_inbox($ctx, $inbox);
+ return $r404 if $r404;
+ my $self = $ctx->{www};
my $css_map = $self->{-css_map} || stylesheets_prepare($self, '');
- defined(my $css = $css_map->{$key}) or return r404();
+ my $css = $css_map->{$key};
+ if (!defined($css) && $key eq 'userContent') {
+ my $env = $ctx->{env};
+ $css = PublicInbox::UserContent::sample($ctx->{-inbox}, $env);
+ }
+ defined $css or return r404();
my $h = [ 'Content-Length', bytes::length($css),
'Content-Type', 'text/css' ];
PublicInbox::GitHTTPBackend::cache_one_year($h);
my $title = $ctx->{-title_html} || $desc;
my $upfx = $ctx->{-upfx} || '';
my $help = $upfx.'_/text/help';
+ my $color = $upfx.'_/text/color';
my $atom = $ctx->{-atom} || $upfx.'new.atom';
my $tip = $ctx->{-html_tip} || '';
my $top = "<b>$desc</b>";
my $links = "<a\nhref=\"$help\">help</a> / ".
+ "<a\nhref=\"$color\">color</a> / ".
"<a\nhref=\"$atom\">Atom feed</a>";
if ($obj->search) {
my $q_val = $ctx->{-q_value_html};
1;
}
+sub _colors_help ($$) {
+ my ($ctx, $txt) = @_;
+ my $ibx = $ctx->{-inbox};
+ my $base_url = $ibx->base_url($ctx->{env});
+ $$txt .= "color customization for $base_url\n";
+ $$txt .= <<EOF;
+
+public-inbox provides a stable set of CSS classes for users to
+customize colors for highlighting diffs and code.
+
+Users of browsers such as dillo, Firefox, or some browser
+extensions may start by downloading the following sample CSS file
+to control the colors they see:
+
+ ${base_url}userContent.css
+
+CSS classes
+-----------
+
+ span.q - quoted text in email messages
+
+For diff highlighting, we try to match class names with those
+used by cgit: https://git.zx2c4.com/cgit/
+
+ span.add - diff post-image lines
+
+ span.del - diff pre-image lines
+
+ span.head - diff header (metainformation)
+
+ span.hunk - diff hunk-header
+
+EOF
+}
sub _default_text ($$$) {
my ($ctx, $key, $txt) = @_;
+ return _colors_help($ctx, $txt) if $key eq 'color';
return if $key ne 'help'; # TODO more keys?
my $ibx = $ctx->{-inbox};