scripts/sway/window-fade.pl

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5.1 KiB
Perl
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#!/usr/bin/env perl
use strict;
use warnings;
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our $debug = 1; # For testing, will output configuration and errors if true
use AnyEvent::Sway;
our $s = AnyEvent::Sway->new();
our $o = $s->get_outputs->recv();
die "No outputs detected.\n" unless (scalar(@$o) > 1);
sub usage()
{
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print("$0 [value] [-p|--plus] [-m|--minus] [-a x|--attribute=x] [-d N|--delay=N]
Fade the opacity of one or more windows via the Sway IPC interface.\n
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value The target opacity or offset between 0 (full transparency) and 1
(fully opaque). Change will be made in increments of 0.01 with a
delay between each.\n
--attribute=x Attribute of window(s) to fade.
-a x Default: [title="*"]\n
--plus Increases opacity by increment instead of setting it directly
-p to that increment.\n
--minus Decreases opacity by increment instead of setting it directly
-m to that increment.\n
--delay=N Change the delay in ms between each percentage point change in
-d N opacity. Default: 20\n
--help This menu
-h\n");
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exit(0);
}
sub set_opacity
{
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my $attribute = shift || return "No target or image provided";
my $target = shift || return "No image provided";
# TODO get fallback from javascript
my $cmd = "output $attribute opacity $target";
print "Running $cmd\n";
my $ret = $s->message(0,$cmd)->recv;
if ($ret->[0]->{success}) {
print "Success!\n";
return undef;
}
return "Failed to run Sway IPC command '$cmd'";
}
my @targets;
my $daemon = 0;
my $delay = 300;
my $crop = 1;
my $path;
while (my $arg = shift(@ARGV)) {
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if ($arg eq '-h' || $arg eq '--help') {
usage();
} elsif ($arg =~ m/^\-\-path=?(.+)$/) {
die "Redundant argument '$arg'. Wallpaper path already set.\n" if ($path);
$path = $1;
} elsif ($arg eq '-p') {
die "Redundant argument '$arg'. Wallpaper path already set.\n" if ($path);
$path = shift(@ARGV);
} elsif ($arg =~ m/^\-\-daemon=?(.+)$/) {
die "Redundant argument '$arg'. Daemon mode already set.\n" if ($daemon);
$delay = $1;
$daemon = 1;
} elsif ($arg eq '-d') {
die "Redundant argument '$arg'. Daemon mode already set.\n" if ($daemon);
if ($ARGV[0] =~ m/^\d+$/) {
$delay = shift(@ARGV);
}
$daemon = 1;
} elsif ($arg eq '--nocrop' || $arg eq '-') {
die "Redundant argument '$arg'. No-crop already set.\n" unless ($crop);
} else {
push(@targets,$arg);
}
}
die "Invalid rotation delay: $delay" unless ($delay =~ m/^\d+$/);
if ($path) {
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die "Invalid wallpaper path '$path'. Not a directory." unless (-d $path);
} else {
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$path = "$ENV{HOME}/wallpapers";
}
if (scalar(@targets)) {
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my @kept;
foreach my $t (@targets) {
my $hit = 0;
foreach (@$o) {
if ($_->{name} eq $t) {
push(@kept, $t);
$hit++;
last;
}
}
print STDERR "Requested output '$t' not found\n" unless ($hit);
}
die "None of the requested outputs are active" unless (scalar(@kept));
@targets = @kept;
}
if ($daemon) {
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my $p = fork();
if ($p) {
print "Daemonized as PID: $p\n";
exit(0);
}
}
if ($debug) {
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print "Initial configuration:\n";
print " Targets: ( " . ( join(" ",@targets) || "All active" ) . " )\n";
print " Daemon: $daemon\n";
print " Path: $path\n";
}
my @e;
do {
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my @err;
# Local copy of targets so that it will re-check active every time
my @t = @targets;
unless (scalar(@t)) {
@t = get_active();
push(@err, "No target outputs") unless (scalar(@t));
}
foreach my $a (@t) {
my $image = choose_image($path);
if (defined($image)) {
if ( -r "$image" ) {
print "selected $image\n";
my $cropped;
if ($crop) {
if ($debug) {
print "Cropping image for '$a' using '$image'\n";
}
my ($ow, $oh) = get_size($a);
$cropped = crop($image, $ow, $oh);
unless ($cropped) {
push(@err, "Failed to generate cropped image") unless ($cropped);
next;
}
} else {
$cropped = $image;
}
my $e = set_background($a,$cropped);
push(@err, $e) if (defined($e));
if ($crop) {
print "Deleting $cropped\n";
#unlink($cropped) || push(@err, "Failed to delete $cropped after setting: $!");
}
} else {
push(@err, "$a: Unable to read image $image");
}
} else {
push(@err, "$a: Unable to select image from $path");
}
}
if ($debug && $daemon) {
print STDERR join("\n",@err);
sleep($delay);
} else {
@e = @err;
}
} while ($daemon);
if (scalar(@e)) {
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die "Failure while not running as daemon:\n" .
join("\n",@e);
}
exit(0);