139 lines
2.9 KiB
Perl
Executable File
139 lines
2.9 KiB
Perl
Executable File
#!/usr/bin/env perl
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# vim:ts=4:sw=4:expandtab:ft=perl
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#
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# Print i3 workspaces on every change.
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#
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# Format:
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# For every workspace (x = workspace name)
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# - "FOCx" -> Focused workspace
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# - "INAx" -> Inactive workspace
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# - "ACTx" -> Ative workspace
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# - "URGx" -> Urgent workspace
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#
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# Uses AnyEvent I3 0.8 -> https://metacpan.org/module/AnyEvent::I3
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# Based in i3-wsbar of Michael Stapelberg -> http://code.stapelberg.de/git/i3/tree/contrib/i3-wsbar
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#
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# 16 feb 2015 - Electro7
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use strict;
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use warnings;
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use AnyEvent::I3;
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use AnyEvent;
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use v5.10;
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my $socket_path = undef;
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my ($workspaces, $outputs) = ([], {});
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my $w = AnyEvent->timer(
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after => 3,
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cb => sub {
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die "Connection to i3 timed out. Verify socket path ($socket_path)";
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exit 1;
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}
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);
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my $i3 = i3($socket_path);
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# Disable buffering
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$| = 1;
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STDERR->autoflush;
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STDOUT->autoflush;
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# Wait a short amount of time and try to connect to i3 again
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sub reconnect {
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print "reconecting\n";
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my $timer;
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$i3 = i3($socket_path);
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if (!defined($w)) {
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$w = AnyEvent->timer(
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after => 3,
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cb => sub {
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die "Connection to i3 timed out. Verify socket path ($socket_path)";
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exit 1;
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}
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);
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}
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my $c = sub {
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$timer = AnyEvent->timer(
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after => 0.01,
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cb => sub { $i3->connect->cb(\&connected) }
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);
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};
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$c->();
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}
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# Connection attempt succeeded or failed
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sub connected {
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my ($cv) = @_;
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if (!$cv->recv) {
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reconnect();
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return;
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}
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$w = undef;
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$i3->subscribe({
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workspace => \&ws_change,
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output => \&output_change,
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_error => sub { reconnect() }
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});
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ws_change();
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output_change();
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}
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# Called when a ws changes
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sub ws_change {
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# Request the current workspaces and update the output afterwards
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$i3->get_workspaces->cb(
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sub {
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my ($cv) = @_;
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$workspaces = $cv->recv;
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update_output();
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});
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}
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# Called when the reply to the GET_OUTPUTS message arrives
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sub got_outputs {
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my $reply = shift->recv;
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my %new = map { ($_->{name}, $_) } grep { $_->{active} } @{$reply};
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for my $name (keys %new) {
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$outputs->{$name} = $new{$name};
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}
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update_output();
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}
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sub output_change {
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$i3->get_outputs->cb(\&got_outputs)
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}
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sub update_output {
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my $out;
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for my $name (keys %{$outputs}) {
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$out .= "WSP";
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for my $ws (@{$workspaces}) {
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my $state = "INA";
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$state = "ACT" if $ws->{visible};
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$state = "URG" if $ws->{urgent};
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$state = "FOC" if $ws->{focused};
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my $name = $ws->{name};
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# strip workspace number
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$name = substr($name, 1, 2);
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$out .= qq|$state$name |;
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}
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$out .= "\n";
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print $out;
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}
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}
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$i3->connect->cb(\&connected);
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# let AnyEvent do the rest ("endless loop")
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AnyEvent->condvar->recv
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