css: Support for dark mode

Modern browsers have a "dark mode" preference, which enables alternate
styles on web sites that support this.

This patch adds a dark color scheme, that is automatically activated
via a CSS @media query.

Older browsers that do not support color schemes will simply show the
light scheme, but possibly without syntax highlighting.

Note that filters that use color (such as source highlighters) and
logotypes may need to be updated to work with a black background!
See the updated files in the filters/ directory.

Signed-off-by: Samuel Lidén Borell <samuel@kodafritt.se>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Samuel Lidén Borell 2023-01-29 17:55:29 +01:00 committed by Jason A. Donenfeld
parent f37dd0dd3a
commit 8ed1bef90f
4 changed files with 214 additions and 41 deletions

113
cgit.css
View File

@ -930,3 +930,116 @@ div#cgit span.libravatar:hover > img.onhover {
background-color: #eeeeee; background-color: #eeeeee;
box-shadow: 2px 2px 7px rgba(100,100,100,0.75); box-shadow: 2px 2px 7px rgba(100,100,100,0.75);
} }
/*
Color overrides for browsers running in dark mode.
"only all and ..." forces very old browsers to ignore the media query:
https://developer.mozilla.org/en-US/docs/Web/CSS/Media_Queries/Using_media_queries#improving_compatibility_with_older_browsers
*/
:root { color-scheme: light dark; }
@media only all and (prefers-color-scheme: dark) {
html, div#cgit { color: #eee; background: #171717; }
div#cgit a { color: #3af; }
div#cgit .diffstat-header a { color: #28d; }
div#cgit table#header td.main a { color: #eee; }
div#cgit table#header td.sub { color: #999; }
div#cgit table.tabs { border-bottom-color: #444; }
div#cgit table.tabs td a { color: #888; }
div#cgit table.tabs td a.active { color: #fff; background-color: #444; }
div#cgit div.path { color: #eee; background-color: #333; }
div#cgit div.content { border-bottom-color: #bbb; }
div#cgit table.list tr { background: #171717; }
div#cgit table.list tr.logheader { background: #171717; }
div#cgit table.list tr:nth-child(even) { background: #171717; }
div#cgit table.list tr:nth-child(odd) { background: #1f1f1f; }
div#cgit table.list tr:hover { background: #333; }
div#cgit table.list tr.nohover { background: #171717; }
div#cgit table.list tr.nohover:hover { background: #171717; }
div#cgit table.list tr.nohover-highlight:hover:nth-child(even) { background: #171717; }
div#cgit table.list tr.nohover-highlight:hover:nth-child(odd) { background: #1f1f1f; }
div#cgit table.list td.commitgraph .column1 { color: #f55; }
div#cgit table.list td.commitgraph .column2 { color: #5f5; }
div#cgit table.list td.commitgraph .column3 { color: #ff5; }
div#cgit table.list td.commitgraph .column4 { color: #55f; }
div#cgit table.list td.commitgraph .column5 { color: #f5f; }
div#cgit table.list td.commitgraph .column6 { color: #5ff; }
div#cgit table.list td a { color: #eee; }
div#cgit table.list td a.ls-dir { color: #28d; }
div#cgit table.list td a:hover { color: #3af; }
div#cgit table#downloads { border-color: #888; }
div#cgit table#downloads th { background-color: #333; }
div#cgit div#blob { border-color: #eee; }
div#cgit table.blob { border-top-color: #eee; }
div#cgit table.blob td.hashes,
div#cgit table.blob td.lines { color: #eee; }
div#cgit table.blob td.linenumbers { border-right-color: gray; }
div#cgit table.blob td.linenumbers a,
div#cgit table.ssdiff td.lineno a { color: gray; }
div#cgit table.blob td.linenumbers a:hover,
div#cgit table.ssdiff td.lineno a:hover { color: #eee; }
div#cgit table.blame div.alt:nth-child(even) { background: #171717; }
div#cgit table.blame div.alt:nth-child(odd) { background: #1f1f1f; }
div#cgit table.bin-blob { border-color: #eee; }
div#cgit table.bin-blob th { border-color: #888; }
div#cgit table.bin-blob td { border-left-color: #888; }
div#cgit div.cgit-panel table { border-color: #555; background-color: #282828; }
div#cgit div.notes { border-color: #661; background-color: #220; }
div#cgit table.diffstat { border-color: #555; background-color: #282828; }
div#cgit table.diffstat td span.modechange { color: #c66; }
div#cgit table.diffstat td.add a { color: #6c6; }
div#cgit table.diffstat td.del a { color: #c66; }
div#cgit table.diffstat td.upd a { color: #3af; }
div#cgit table.diffstat td.graph td.add { background-color: #3a3; }
div#cgit table.diffstat td.graph td.rem { background-color: #a33; }
div#cgit div.diffstat-summary { color: #777; }
div#cgit table.diff td div.head { color: #eee; }
div#cgit table.diff td div.hunk { color: #28d; }
div#cgit table.diff td div.add { color: #6c6; }
div#cgit table.diff td div.del { color: #c66; }
div#cgit table.list td.reposection { color: #777; }
div#cgit ul.pager a { color: #888; }
div#cgit span.age-mins { color: #7f7; }
div#cgit span.age-hours { color: #7f7; }
div#cgit span.age-days { color: #9d9; }
div#cgit span.age-weeks { color: #bbb; }
div#cgit span.age-months { color: #888; }
div#cgit span.age-years { color: #666; }
div#cgit span.insertions { color: #7f7; }
div#cgit span.deletions { color: #e33; }
div#cgit div.footer { color: #555; }
div#cgit div.footer a { color: #555; }
div#cgit a.branch-deco { color: #fff; background-color: #361; border-color: #3b2; }
div#cgit a.tag-deco { color: #fff; background-color: #650; border-color: #ba3; }
div#cgit a.tag-annotated-deco { color: #fff; background-color: #840; border-color: #b96; }
div#cgit a.remote-deco { color: #fff; background-color: #348; border-color: #67c; }
div#cgit a.deco { color: #fff; background-color: #922; border-color: #d55; }
div#cgit a.branch-deco:hover, div#cgit table.list td a.branch-deco:hover,
div#cgit a.tag-deco:hover, div#cgit table.list td a.tag-deco:hover,
div#cgit a.tag-annotated-deco:hover, div#cgit table.list td a.tag-annotated-deco:hover,
div#cgit a.remote-deco:hover, div#cgit table.list td a.remote-deco:hover,
div#cgit a.deco:hover, div#cgit table.list td a.deco:hover { color: #fff; }
div#cgit table.stats { border-color: #555; }
div#cgit table.stats th { background-color: #333; border-color: #555; }
div#cgit table.stats td { border-color: #555; }
div#cgit table.stats td.sum { color: #5C7E9B; }
div#cgit table.vgraph { border-color: #eee; }
div#cgit table.vgraph th { background-color: #1f1f1f; border-color: black; }
div#cgit table.vgraph div.bar { background-color: #1f1f1f; }
div#cgit table.hgraph { border-color: #eee; }
div#cgit table.hgraph th { background-color: #1f1f1f; border-color: #eee; }
div#cgit table.hgraph div.bar { background-color: #1f1f1f; }
div#cgit table.ssdiff td { border-left-color: #555; border-right-color: #555; }
div#cgit table.ssdiff td.add { color: #eee; background: #353; }
div#cgit table.ssdiff td.add_dark { color: #eee; background: #030; }
div#cgit table.ssdiff span.add { background: #030; }
div#cgit table.ssdiff td.del { color: #eee; background: #533; }
div#cgit table.ssdiff td.del_dark { color: #eee; background: #411; }
div#cgit table.ssdiff span.del { background: #300; }
div#cgit table.ssdiff td.changed { color: #eee; background: #553; }
div#cgit table.ssdiff td.changed_dark { color: #eee; background: #330; }
div#cgit table.ssdiff td.lineno { color: #eee; background: #1f1f1f; }
div#cgit table.ssdiff td.hunk { color: #eee; background: #0D3D64; border-top-color: #555; border-bottom-color: #555; }
div#cgit table.ssdiff td.head { border-top-color: #555; border-bottom-color: #555; }
div#cgit table.ssdiff td.head div.head { color: #eee; }
div#cgit table.ssdiff td.foot { border-top-color: #555; }
}

View File

@ -4,6 +4,11 @@ import sys
import io import io
from pygments.formatters import HtmlFormatter from pygments.formatters import HtmlFormatter
from markdown.extensions.toc import TocExtension from markdown.extensions.toc import TocExtension
# The dark style is automatically selected if the browser is in dark mode
light_style='pastie'
dark_style='monokai'
sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8') sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8')
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8') sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
sys.stdout.write(''' sys.stdout.write('''
@ -283,10 +288,31 @@ div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#
background-color: transparent; background-color: transparent;
border: none; border: none;
} }
@media only all and (prefers-color-scheme: dark) {
.markdown-body a.absent { color: #f33; }
.markdown-body h1 .mini-icon-link, .markdown-body h2 .mini-icon-link, .markdown-body h3 .mini-icon-link, .markdown-body h4 .mini-icon-link, .markdown-body h5 .mini-icon-link, .markdown-body h6 .mini-icon-link { color: #eee; }
div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#cgit .markdown-body h3 a.toclink, div#cgit .markdown-body h4 a.toclink, div#cgit .markdown-body h5 a.toclink, div#cgit .markdown-body h6 a.toclink { color: #eee; }
.markdown-body h1 { color: #eee; }
.markdown-body h2 { border-bottom-color: #333; color: #eee; }
.markdown-body h6 { color: #888; }
.markdown-body hr { border-color: #333; }
.markdown-body blockquote { border-left-color: #222; color: #888; }
.markdown-body table th, .markdown-body table td { border-color: #333; }
.markdown-body table tr { border-top-color: #333; background-color: #111; }
.markdown-body table tr:nth-child(2n) { background-color: #070707; }
.markdown-body span.frame span span { color: #ccc; }
.markdown-body code, .markdown-body tt { border-color: #151515; background-color: #070707; }
.markdown-body .highlight pre, .markdown-body pre { background-color: #070707; border-color: #333; }
''') ''')
sys.stdout.write(HtmlFormatter(style='pastie').get_style_defs('.highlight')) sys.stdout.write(HtmlFormatter(style=dark_style).get_style_defs('.highlight'))
sys.stdout.write(''' sys.stdout.write('''
</style> }
@media (prefers-color-scheme: light) {
''')
sys.stdout.write(HtmlFormatter(style=light_style).get_style_defs('.highlight'))
sys.stdout.write('''
}
</style>
''') ''')
sys.stdout.write("<div class='markdown-body'>") sys.stdout.write("<div class='markdown-body'>")
sys.stdout.flush() sys.stdout.flush()

View File

@ -29,12 +29,16 @@ from pygments.lexers import guess_lexer
from pygments.lexers import guess_lexer_for_filename from pygments.lexers import guess_lexer_for_filename
from pygments.formatters import HtmlFormatter from pygments.formatters import HtmlFormatter
# The dark style is automatically selected if the browser is in dark mode
light_style='pastie'
dark_style='monokai'
sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace') sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace')
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace') sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
data = sys.stdin.read() data = sys.stdin.read()
filename = sys.argv[1] filename = sys.argv[1]
formatter = HtmlFormatter(style='pastie', nobackground=True) light_formatter = HtmlFormatter(style=light_style, nobackground=True)
dark_formatter = HtmlFormatter(style=dark_style, nobackground=True)
try: try:
lexer = guess_lexer_for_filename(filename, data) lexer = guess_lexer_for_filename(filename, data)
@ -50,6 +54,10 @@ except TypeError:
# highlight! :-) # highlight! :-)
# printout pygments' css definitions as well # printout pygments' css definitions as well
sys.stdout.write('<style>') sys.stdout.write('<style>')
sys.stdout.write(formatter.get_style_defs('.highlight')) sys.stdout.write('\n@media only all and (prefers-color-scheme: dark) {\n')
sys.stdout.write(dark_formatter.get_style_defs('.highlight'))
sys.stdout.write('\n}\n@media (prefers-color-scheme: light) {\n')
sys.stdout.write(light_formatter.get_style_defs('.highlight'))
sys.stdout.write('\n}\n')
sys.stdout.write('</style>') sys.stdout.write('</style>')
sys.stdout.write(highlight(data, lexer, formatter, outfile=None)) sys.stdout.write(highlight(data, lexer, light_formatter, outfile=None))

View File

@ -25,6 +25,20 @@
# table.blob .kwb { color:#830000; } # table.blob .kwb { color:#830000; }
# table.blob .kwc { color:#000000; font-weight:bold; } # table.blob .kwc { color:#000000; font-weight:bold; }
# table.blob .kwd { color:#010181; } # table.blob .kwd { color:#010181; }
# @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
# table.blob .num { color:#ff814f; }
# table.blob .esc { color:#f60; }
# table.blob .str { color:#cc0; }
# table.blob .dstr { color:#ffff7e; }
# table.blob .slc { color:#7f7c7f; }
# table.blob .com { color:#7e7c7e; }
# table.blob .dir { color:#7dff7d; }
# table.blob .sym { color:#eeeeee; }
# table.blob .kwa { color:#bb0; }
# table.blob .kwb { color:#0a0; }
# table.blob .kwc { color:#eeeeee; }
# table.blob .kwd { color:#7e7efe; }
# }
# #
# #
# Style definition file generated by highlight 2.6.14, http://www.andre-simon.de/ # Style definition file generated by highlight 2.6.14, http://www.andre-simon.de/
@ -45,45 +59,57 @@
# .hl.kwb { color:#830000; } # .hl.kwb { color:#830000; }
# .hl.kwc { color:#000000; font-weight:bold; } # .hl.kwc { color:#000000; font-weight:bold; }
# .hl.kwd { color:#010181; } # .hl.kwd { color:#010181; }
# @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
# pre.hl { color:#eeeeee; background-color:#111; }
# .hl.num { color:#ff814f; }
# .hl.esc { color:#f60; }
# .hl.str { color:#cc0; }
# .hl.dstr { color:#ffff7e; }
# .hl.slc { color:#7f7c7f; }
# .hl.com { color:#7e7c7e; }
# .hl.dir { color:#7dff7d; }
# .hl.sym { color:#eeeeee; }
# .hl.line { color:#aaaaaa; }
# .hl.mark { background-color:#444400; }
# .hl.kwa { color:#bb0; }
# .hl.kwb { color:#a0a; }
# .hl.kwc { color:#eeeeee; }
# .hl.kwd { color:#7e7efe; }
# }
# #
# #
# Style definition file generated by highlight 3.8, http://www.andre-simon.de/ # Style definition file generated by highlight 3.8 / 3.13 / 3.41, http://www.andre-simon.de/
# #
# body.hl { background-color:#e0eaee; } # table.blob .num { color:#b07e00; }
# pre.hl { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New';} # table.blob .esc { color:#ff00ff; }
# .hl.num { color:#b07e00; } # table.blob .str { color:#bf0303; }
# .hl.esc { color:#ff00ff; } # table.blob .pps { color:#818100; }
# .hl.str { color:#bf0303; } # table.blob .slc { color:#838183; font-style:italic; }
# .hl.pps { color:#818100; } # table.blob .com { color:#838183; font-style:italic; }
# .hl.slc { color:#838183; font-style:italic; } # table.blob .ppc { color:#008200; }
# .hl.com { color:#838183; font-style:italic; } # table.blob .opt { color:#000000; }
# .hl.ppc { color:#008200; } # table.blob .ipl { color:#0057ae; }
# .hl.opt { color:#000000; } # table.blob .lin { color:#555555; }
# .hl.lin { color:#555555; } # table.blob .kwa { color:#000000; font-weight:bold; }
# .hl.kwa { color:#000000; font-weight:bold; } # table.blob .kwb { color:#0057ae; }
# .hl.kwb { color:#0057ae; } # table.blob .kwc { color:#000000; font-weight:bold; }
# .hl.kwc { color:#000000; font-weight:bold; } # table.blob .kwd { color:#010181; }
# .hl.kwd { color:#010181; } # @media only all and (prefers-color-scheme: dark) { /* cgit addition for dark mode */
# # table.blob .num { color:#ff814f; }
# # table.blob .esc { color:#f60; }
# Style definition file generated by highlight 3.13, http://www.andre-simon.de/ # table.blob .str { color:#cc0; }
# # table.blob .pps { color:#ffff7f; }
# body.hl { background-color:#e0eaee; } # table.blob .slc { color:#7f7c7f; }
# pre.hl { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New',monospace;} # table.blob .com { color:#7e7c7e; }
# .hl.num { color:#b07e00; } # table.blob .ppc { color:#8dd; }
# .hl.esc { color:#ff00ff; } # table.blob .opt { color:#eeeeee; }
# .hl.str { color:#bf0303; } # table.blob .ipl { color:#51a8ff; }
# .hl.pps { color:#818100; } # table.blob .lin { color:#aaaaaa; }
# .hl.slc { color:#838183; font-style:italic; } # table.blob .kwa { color:#bb0; }
# .hl.com { color:#838183; font-style:italic; } # table.blob .kwb { color:#0a0; }
# .hl.ppc { color:#008200; } # table.blob .kwc { color:#eeeeee; }
# .hl.opt { color:#000000; } # table.blob .kwd { color:#7e7efe; }
# .hl.ipl { color:#0057ae; } # }
# .hl.lin { color:#555555; }
# .hl.kwa { color:#000000; font-weight:bold; }
# .hl.kwb { color:#0057ae; }
# .hl.kwc { color:#000000; font-weight:bold; }
# .hl.kwd { color:#010181; }
# #
# #
# The following environment variables can be used to retrieve the configuration # The following environment variables can be used to retrieve the configuration