/usr/share/irssi/scripts/trackbar.pl is in irssi-scripts 20120326.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | # trackbar.pl
#
# This little script will do just one thing: it will draw a line each time you
# switch away from a window. This way, you always know just upto where you've
# been reading that window :) It also removes the previous drawn line, so you
# don't see double lines.
#
# Usage:
#
# The script works right out of the box, but if you want you can change
# the working by /set'ing the following variables:
#
# trackbar_string The characters to repeat to draw the bar
# trackbar_style The style for the bar, %r is red for example
# See formats.txt that came with irssi
#
# /mark is a command that will redraw the line at the bottom. However! This
# requires irssi version after 20021228. otherwise you'll get the error
# redraw: unknown command, and your screen is all goofed up :)
#
# /upgrade & buf.pl notice: This version tries to remove the trackbars before
# the upgrade is done, so buf.pl does not restore them, as they are not removeable
# afterwards by trackbar. Unfortiounatly, to make this work, trackbar and buf.pl
# need to be loaded in a specific order. Please experiment to see which order works
# for you (strangely, it differs from configuration to configuration, something I will
# try to fix in a next version)
#
# Authors:
# - Main maintainer & author: Peter 'kinlo' Leurs
# - Many thanks to Timo 'cras' Sirainen for placing me on my way
# - on-upgrade-remove-line patch by Uwe Dudenhoeffer
#
# Version history:
# 1.4: - Changed our's by my's so the irssi script header is valid
# - Removed utf-8 support. In theory, the script should work w/o any
# problems for utf-8, just set trackbar_string to a valid utf-8 character
# and everything *should* work. However, this script is being plagued by
# irssi internal bugs. The function Irssi::settings_get_str does NOT handle
# unicode strings properly, hence you will notice problems when setting the bar
# to a unicode char. For changing your bar to utf-8 symbols, read the line sub.
# 1.3: - Upgrade now removes the trackbars.
# - Some code cleanups, other defaults
# - /mark sets the line to the bottom
# 1.2: - Support for utf-8
# - How the bar looks can now be configured with trackbar_string
# and trackbar_style
# 1.1: - Fixed bug when closing window
# 1.0: - Initial release
#
#
# Call for help!
#
# There is a trackbar version 2.0 that properly handles resizes and immediate config change
# activation. However, there is/are some bug(s) in irssi's main buffer/window code that causes
# irssi to 'forget' lines, which is ofcourse completly unaccepteable. I haven't found the time
# nor do I know the irssi's internals enough to find and fix this bug, if you want to help, please
# contact me, I'll give you a copy of the 2.0 version that will immediatly show you the problems.
#
# Known bugs:
# - if you /clear a window, it will be uncleared when returning to the window
# - UTF-8 characters in the trackbar_string doesnt work. This is an irssi bug.
# - if you resize your irssi (in xterm or so) the bar is not resized
# - changing the trackbar style is only visible after returning to a window
# however, changing style/resize takes in effect after you left the window.
#
# Whishlist/todo:
# - instead of drawing a line, just invert timestamp or something,
# to save a line (but I don't think this is possible with current irssi)
# - some pageup keybinding possibility, to scroll up upto the trackbar
# - <@coekie> kinlo: if i switch to another window, in another split window, i
# want the trackbar to go down in the previouswindow in that splitwindow :)
# - < bob_2> anyway to clear the line once the window is read?
# - < elho> kinlo: wishlist item: a string that gets prepended to the repeating pattern
# - < elho> an option to still have the timestamp in front of the bar
# - < elho> oh and an option to not draw it in the status window :P
#
# BTW: when you have feature requests, mailing a patch that works is the fastest way
# to get it added :p
use strict;
use 5.6.1;
use Irssi;
use Irssi::TextUI;
my $VERSION = "1.4";
my %IRSSI = (
authors => "Peter 'kinlo' Leurs",
contact => "peter\@pfoe.be",
name => "trackbar",
description => "Shows a bar where you've last read a window",
license => "GPLv2",
url => "http://www.pfoe.be/~peter/trackbar/",
changed => "Thu Feb 20 16:18:08 2003",
);
my %config;
Irssi::settings_add_str('trackbar', 'trackbar_string' => '-');
$config{'trackbar_string'} = Irssi::settings_get_str('trackbar_string');
Irssi::settings_add_str('trackbar', 'trackbar_style' => '%K');
$config{'trackbar_style'} = Irssi::settings_get_str('trackbar_style');
Irssi::signal_add(
'setup changed' => sub {
$config{'trackbar_string'} = Irssi::settings_get_str('trackbar_string');
$config{'trackbar_style'} = Irssi::settings_get_str('trackbar_style');
if ($config{'trackbar_style'} =~ /(?<!%)[^%]|%%|%$/) {
Irssi::print(
"trackbar: %RWarning!%n 'trackbar_style' seems to contain "
. "printable characters. Only use format codes (read "
. "formats.txt).", MSGLEVEL_CLIENTERROR);
}
}
);
Irssi::signal_add(
'window changed' => sub {
my (undef, $oldwindow) = @_;
if ($oldwindow) {
my $line = $oldwindow->view()->get_bookmark('trackbar');
$oldwindow->view()->remove_line($line) if defined $line;
$oldwindow->print(line($oldwindow->{'width'}), MSGLEVEL_NEVER);
$oldwindow->view()->set_bookmark_bottom('trackbar');
}
}
);
sub line {
my $width = shift;
my $string = $config{'trackbar_string'};
$string = '-' unless defined $string;
# There is a bug in irssi's utf-8 handling on config file settings, as you
# can reproduce/see yourself by the following code sniplet:
#
# my $quake = pack 'U*', 8364; # EUR symbol
# Irssi::settings_add_str 'temp', 'temp_foo' => $quake;
# Irssi::print length $quake;
# # prints 1
# Irssi::print length Irssi::settings_get_str 'temp_foo';
# # prints 3
#
#
# Trackbar used to have a workaround, but on recent versions of perl/irssi
# it does no longer work. Therefore, if you want your trackbar to contain
# unicode characters, uncomment the line below for a nice full line, or set
# the string to whatever char you want.
# $string = pack('U*', 0x2500);
my $length = length $string;
if ($length == 0) {
$string = '-';
$length = 1;
}
my $times = $width / $length;
$times = int(1 + $times) if $times != int($times);
$string =~ s/%/%%/g;
return $config{'trackbar_style'} . substr($string x $times, 0, $width);
}
# Remove trackbars on upgrade - but this doesn't really work if the scripts are not loaded in the correct order... watch out!
Irssi::signal_add_first( 'session save' => sub {
for my $window (Irssi::windows) {
next unless defined $window;
my $line = $window->view()->get_bookmark('trackbar');
$window->view()->remove_line($line) if defined $line;
}
}
);
sub cmd_mark {
my $window = Irssi::active_win();
# return unless defined $window;
my $line = $window->view()->get_bookmark('trackbar');
$window->view()->remove_line($line) if defined $line;
$window->print(line($window->{'width'}), MSGLEVEL_NEVER);
$window->view()->set_bookmark_bottom('trackbar');
Irssi::command("redraw");
}
Irssi::command_bind('mark', 'cmd_mark');
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