update macos + windows

include size_of for older rust versions
move lan-mouse protocol into separate crate
2026-03-08 04:20:01 +03:00 · 2024-08-11 16:28:22 +02:00 · 2024-08-11 16:00:03 +02:00 · 2024-08-09 15:01:39 +02:00 · 2024-08-09 14:43:55 +02:00 · 2024-08-09 13:18:23 +02:00
42 changed files with 1290 additions and 1180 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -98,9 +98,9 @@ dependencies = [

 [[package]]
 name = "ashpd"
-version = "0.8.1"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd884d7c72877a94102c3715f3b1cd09ff4fac28221add3e57cfbe25c236d093"
+checksum = "bfe7e0dd0ac5a401dc116ed9f9119cf9decc625600474cb41f0fc0a0050abc9a"
 dependencies = [
 "enumflags2",
 "futures-channel",
@@ -200,9 +200,9 @@ dependencies = [

 [[package]]
 name = "async-signal"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "794f185324c2f00e771cd9f1ae8b5ac68be2ca7abb129a87afd6e86d228bc54d"
+checksum = "dfb3634b73397aa844481f814fad23bbf07fdb0eabec10f2eb95e58944b1ec32"
 dependencies = [
 "async-io",
 "async-lock",
@@ -296,15 +296,15 @@ dependencies = [

 [[package]]
 name = "bytes"
-version = "1.6.0"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
+checksum = "a12916984aab3fa6e39d655a33e09c0071eb36d6ab3aea5c2d78551f1df6d952"

 [[package]]
 name = "cairo-rs"
-version = "0.19.4"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ac2a4d0e69036cf0062976f6efcba1aaee3e448594e6514bb2ddf87acce562"
+checksum = "797fd5a634dcb0ad0d7d583df794deb0a236d88e759cd34b7da20198c6c9d145"
 dependencies = [
 "bitflags 2.6.0",
 "cairo-sys-rs",
@@ -315,9 +315,9 @@ dependencies = [

 [[package]]
 name = "cairo-sys-rs"
-version = "0.19.2"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd3bb3119664efbd78b5e6c93957447944f16bdbced84c17a9f41c7829b81e64"
+checksum = "428290f914b9b86089f60f5d8a9f6e440508e1bcff23b25afd51502b0a2da88f"
 dependencies = [
 "glib-sys",
 "libc",
@@ -326,9 +326,9 @@ dependencies = [

 [[package]]
 name = "cc"
-version = "1.1.0"
+version = "1.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaff6f8ce506b9773fa786672d63fc7a191ffea1be33f72bbd4aeacefca9ffc8"
+checksum = "2aba8f4e9906c7ce3c73463f62a7f0c65183ada1a2d47e397cc8810827f9694f"

 [[package]]
 name = "cfg-expr"
@@ -758,9 +758,9 @@ dependencies = [

 [[package]]
 name = "gdk-pixbuf"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "624eaba126021103c7339b2e179ae4ee8cdab842daab419040710f38ed9f8699"
+checksum = "28bb53ecb56857c683c9ec859908e076dd3969c7d67598bd8b1ce095d211304a"
 dependencies = [
 "gdk-pixbuf-sys",
 "gio",
@@ -770,9 +770,9 @@ dependencies = [

 [[package]]
 name = "gdk-pixbuf-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4efa05a4f83c8cc50eb4d883787b919b85e5f1d8dd10b5a1df53bf5689782379"
+checksum = "9f6681a0c1330d1d3968bec1529f7172d62819ef0bdbb0d18022320654158b03"
 dependencies = [
 "gio-sys",
 "glib-sys",
@@ -783,9 +783,9 @@ dependencies = [

 [[package]]
 name = "gdk4"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db265c9dd42d6a371e09e52deab3a84808427198b86ac792d75fd35c07990a07"
+checksum = "4b7d7237c1487ed4b300aac7744efcbf1319e12d60d7afcd6f505414bd5b5dea"
 dependencies = [
 "cairo-rs",
 "gdk-pixbuf",
@@ -798,9 +798,9 @@ dependencies = [

 [[package]]
 name = "gdk4-sys"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9418fb4e8a67074919fe7604429c45aa74eb9df82e7ca529767c6d4e9dc66dd"
+checksum = "a67576c8ec012156d7f680e201a807b4432a77babb3157e0555e990ab6bcd878"
 dependencies = [
 "cairo-sys-rs",
 "gdk-pixbuf-sys",
@@ -842,9 +842,9 @@ checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"

 [[package]]
 name = "gio"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c49f117d373ffcc98a35d114db5478bc223341cff53e39a5d6feced9e2ddffe"
+checksum = "398e3da68749fdc32783cbf7521ec3f65c9cf946db8c7774f8460af49e52c6e2"
 dependencies = [
 "futures-channel",
 "futures-core",
@@ -860,9 +860,9 @@ dependencies = [

 [[package]]
 name = "gio-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cd743ba4714d671ad6b6234e8ab2a13b42304d0e13ab7eba1dcdd78a7d6d4ef"
+checksum = "e4feb96b31c32730ea3e1e89aecd2e4e37ecb1c473ad8f685e3430a159419f63"
 dependencies = [
 "glib-sys",
 "gobject-sys",
@@ -873,9 +873,9 @@ dependencies = [

 [[package]]
 name = "glib"
-version = "0.19.9"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39650279f135469465018daae0ba53357942a5212137515777d5fdca74984a44"
+checksum = "fee90a615ce05be7a32932cfb8adf2c4bbb4700e80d37713c981fb24c0c56238"
 dependencies = [
 "bitflags 2.6.0",
 "futures-channel",
@@ -895,18 +895,18 @@ dependencies = [

 [[package]]
 name = "glib-build-tools"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "108f374fff60efd14b0d70d8916e7213aed18d7dd071ba3e9334ed2dac1dc86a"
+checksum = "7029c2651d9b5d5a3eea93ec8a1995665c6d3a69ce9bf6042ad9064d134736d8"
 dependencies = [
 "gio",
 ]

 [[package]]
 name = "glib-macros"
-version = "0.19.9"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4429b0277a14ae9751350ad9b658b1be0abb5b54faa5bcdf6e74a3372582fad7"
+checksum = "4da558d8177c0c8c54368818b508a4244e1286fce2858cef4e547023f0cfa5ef"
 dependencies = [
 "heck 0.5.0",
 "proc-macro-crate",
@@ -917,9 +917,9 @@ dependencies = [

 [[package]]
 name = "glib-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c2dc18d3a82b0006d470b13304fbbb3e0a9bd4884cf985a60a7ed733ac2c4a5"
+checksum = "4958c26e5a01c9af00dea669a97369eccbec29a8e6d125c24ea2d85ee7467b60"
 dependencies = [
 "libc",
 "system-deps",
@@ -927,9 +927,9 @@ dependencies = [

 [[package]]
 name = "gobject-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e697e252d6e0416fd1d9e169bda51c0f1c926026c39ca21fbe8b1bb5c3b8b9e"
+checksum = "c6908864f5ffff15b56df7e90346863904f49b949337ed0456b9287af61903b8"
 dependencies = [
 "glib-sys",
 "libc",
@@ -938,9 +938,9 @@ dependencies = [

 [[package]]
 name = "graphene-rs"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5fb86031d24d9ec0a2a15978fc7a65d545a2549642cf1eb7c3dda358da42bcf"
+checksum = "630e940ad5824f90221d6579043a9cd1f8bec86b4a17faaf7827d58eb16e8c1f"
 dependencies = [
 "glib",
 "graphene-sys",
@@ -949,9 +949,9 @@ dependencies = [

 [[package]]
 name = "graphene-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f530e0944bccba4b55065e9c69f4975ad691609191ebac16e13ab8e1f27af05"
+checksum = "6fb8fade7b754982f47ebbed241fd2680816fdd4598321784da10b9e1168836a"
 dependencies = [
 "glib-sys",
 "libc",
@@ -961,9 +961,9 @@ dependencies = [

 [[package]]
 name = "gsk4"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7563884bf6939f4468e5d94654945bdd9afcaf8c3ba4c5dd17b5342b747221be"
+checksum = "1f3cf2091e1af185b347b3450817d93dea6fe435df7abd4c2cd7fb5bcb4cfda8"
 dependencies = [
 "cairo-rs",
 "gdk4",
@@ -976,9 +976,9 @@ dependencies = [

 [[package]]
 name = "gsk4-sys"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23024bf2636c38bbd1f822f58acc9d1c25b28da896ff0f291a1a232d4272b3dc"
+checksum = "6aa69614a26d8760c186c3690f1b0fbb917572ca23ef83137445770ceddf8cde"
 dependencies = [
 "cairo-sys-rs",
 "gdk4-sys",
@@ -992,9 +992,9 @@ dependencies = [

 [[package]]
 name = "gtk4"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b04e11319b08af11358ab543105a9e49b0c491faca35e2b8e7e36bfba8b671ab"
+checksum = "eaffc6c743c9160514cc9b67eace364e5dc5798369fa809cdb04e035c21c5c5d"
 dependencies = [
 "cairo-rs",
 "field-offset",
@@ -1013,9 +1013,9 @@ dependencies = [

 [[package]]
 name = "gtk4-macros"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec655a7ef88d8ce9592899deb8b2d0fa50bab1e6dd69182deb764e643c522408"
+checksum = "188211f546ce5801f6d0245c37b6249143a2cb4fa040e54829ca1e76796e9f09"
 dependencies = [
 "proc-macro-crate",
 "proc-macro2",
@@ -1025,9 +1025,9 @@ dependencies = [

 [[package]]
 name = "gtk4-sys"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c8aa86b7f85ea71d66ea88c1d4bae1cfacf51ca4856274565133838d77e57b5"
+checksum = "1114a207af8ada02cf4658a76692f4190f06f093380d5be07e3ca8b43aa7c666"
 dependencies = [
 "cairo-sys-rs",
 "gdk-pixbuf-sys",
@@ -1192,7 +1192,7 @@ dependencies = [

 [[package]]
 name = "input-capture"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
 "ashpd",
 "async-trait",
@@ -1211,13 +1211,13 @@ dependencies = [
 "wayland-client",
 "wayland-protocols",
 "wayland-protocols-wlr",
- "windows 0.57.0",
+ "windows 0.58.0",
 "x11",
 ]

 [[package]]
 name = "input-emulation"
-version = "0.1.0"
+version = "0.2.1"
 dependencies = [
 "ashpd",
 "async-trait",
@@ -1234,13 +1234,13 @@ dependencies = [
 "wayland-protocols",
 "wayland-protocols-misc",
 "wayland-protocols-wlr",
- "windows 0.57.0",
+ "windows 0.58.0",
 "x11",
 ]

 [[package]]
 name = "input-event"
-version = "0.1.0"
+version = "0.2.1"
 dependencies = [
 "futures-core",
 "log",
@@ -1306,7 +1306,7 @@ dependencies = [

 [[package]]
 name = "lan-mouse"
-version = "0.8.0"
+version = "0.9.1"
 dependencies = [
 "anyhow",
 "async-channel",
@@ -1321,6 +1321,7 @@ dependencies = [
 "input-capture",
 "input-emulation",
 "input-event",
+ "lan-mouse-proto",
 "libadwaita",
 "libc",
 "log",
@@ -1334,12 +1335,21 @@ dependencies = [
 ]

 [[package]]
-name = "libadwaita"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91b4990248b9e1ec5e72094a2ccaea70ec3809f88f6fd52192f2af306b87c5d9"
+name = "lan-mouse-proto"
+version = "0.1.0"
+dependencies = [
+ "input-event",
+ "num_enum",
+ "paste",
+ "thiserror",
+]
+
+[[package]]
+name = "libadwaita"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ff9c222b5c783729de45185f07b2fec2d43a7f9c63961e777d3667e20443878"
 dependencies = [
- "gdk-pixbuf",
 "gdk4",
 "gio",
 "glib",
@@ -1351,9 +1361,9 @@ dependencies = [

 [[package]]
 name = "libadwaita-sys"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23a748e4e92be1265cd9e93d569c0b5dfc7814107985aa6743d670ab281ea1a8"
+checksum = "1c44d8bdbad31d6639e1f20cc9c1424f1a8e02d751fc28d44659bf743fb9eca6"
 dependencies = [
 "gdk4-sys",
 "gio-sys",
@@ -1546,9 +1556,9 @@ dependencies = [

 [[package]]
 name = "pango"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f0d328648058085cfd6897c9ae4272884098a926f3a833cd50c8c73e6eccecd"
+checksum = "54768854025df6903061d0084fd9702a253ddfd60db7d9b751d43b76689a7f0a"
 dependencies = [
 "gio",
 "glib",
@@ -1558,9 +1568,9 @@ dependencies = [

 [[package]]
 name = "pango-sys"
-version = "0.19.8"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff03da4fa086c0b244d4a4587d3e20622a3ecdb21daea9edf66597224c634ba0"
+checksum = "b07cc57d10cee4ec661f718a6902cee18c2f4cfae08e87e5a390525946913390"
 dependencies = [
 "glib-sys",
 "gobject-sys",
@@ -1597,6 +1607,12 @@ dependencies = [
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -1727,9 +1743,9 @@ dependencies = [

 [[package]]
 name = "redox_syscall"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c82cf8cff14456045f55ec4241383baeff27af886adb72ffb2162f99911de0fd"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
 dependencies = [
 "bitflags 2.6.0",
 ]
@@ -1946,9 +1962,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"

 [[package]]
 name = "syn"
-version = "2.0.70"
+version = "2.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f0209b68b3613b093e0ec905354eccaedcfe83b8cb37cbdeae64026c3064c16"
+checksum = "b146dcf730474b4bcd16c311627b31ede9ab149045db4d6088b3becaea046462"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -1957,9 +1973,9 @@ dependencies = [

 [[package]]
 name = "system-deps"
-version = "6.2.2"
+version = "7.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3e535eb8dded36d55ec13eddacd30dec501792ff23a0b1682c38601b8cf2349"
+checksum = "6c81f13d9a334a6c242465140bd262fae382b752ff2011c4f7419919a9c97922"
 dependencies = [
 "cfg-expr",
 "heck 0.5.0",
@@ -1988,18 +2004,18 @@ dependencies = [

 [[package]]
 name = "thiserror"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
 "thiserror-impl",
 ]

 [[package]]
 name = "thiserror-impl"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2023,9 +2039,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"

 [[package]]
 name = "tokio"
-version = "1.38.0"
+version = "1.38.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
+checksum = "eb2caba9f80616f438e09748d5acda951967e1ea58508ef53d9c6402485a46df"
 dependencies = [
 "backtrace",
 "bytes",
@@ -2066,14 +2082,14 @@ dependencies = [

 [[package]]
 name = "toml"
-version = "0.8.14"
+version = "0.8.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f49eb2ab21d2f26bd6db7bf383edc527a7ebaee412d17af4d40fdccd442f335"
+checksum = "ac2caab0bf757388c6c0ae23b3293fdb463fee59434529014f85e3263b995c28"
 dependencies = [
 "serde",
 "serde_spanned",
 "toml_datetime",
- "toml_edit 0.22.15",
+ "toml_edit 0.22.16",
 ]

 [[package]]
@@ -2098,9 +2114,9 @@ dependencies = [

 [[package]]
 name = "toml_edit"
-version = "0.22.15"
+version = "0.22.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59a3a72298453f564e2b111fa896f8d07fabb36f51f06d7e875fc5e0b5a3ef1"
+checksum = "278f3d518e152219c994ce877758516bca5e118eaed6996192a774fb9fbf0788"
 dependencies = [
 "indexmap",
 "serde",
@@ -2222,9 +2238,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"

 [[package]]
 name = "wayland-backend"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "269c04f203640d0da2092d1b8d89a2d081714ae3ac2f1b53e99f205740517198"
+checksum = "f90e11ce2ca99c97b940ee83edbae9da2d56a08f9ea8158550fd77fa31722993"
 dependencies = [
 "cc",
 "downcast-rs",
@@ -2236,9 +2252,9 @@ dependencies = [

 [[package]]
 name = "wayland-client"
-version = "0.31.4"
+version = "0.31.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08bd0f46c069d3382a36c8666c1b9ccef32b8b04f41667ca1fef06a1adcc2982"
+checksum = "7e321577a0a165911bdcfb39cf029302479d7527b517ee58ab0f6ad09edf0943"
 dependencies = [
 "bitflags 2.6.0",
 "rustix",
@@ -2248,9 +2264,9 @@ dependencies = [

 [[package]]
 name = "wayland-protocols"
-version = "0.32.2"
+version = "0.32.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1794d82d869f38439d15c24b26f06f6c8603d27d47b4f786d5197c99044de415"
+checksum = "62989625a776e827cc0f15d41444a3cea5205b963c3a25be48ae1b52d6b4daaa"
 dependencies = [
 "bitflags 2.6.0",
 "wayland-backend",
@@ -2260,9 +2276,9 @@ dependencies = [

 [[package]]
 name = "wayland-protocols-misc"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28b497d7edd777ca365f2cce3837046b7832365b2a0b32f9c913b4e6f8d99839"
+checksum = "dfe44d48a0e51909c89da297f6b43bb814b881c78b69e254a4558a5fa8752887"
 dependencies = [
 "bitflags 2.6.0",
 "wayland-backend",
@@ -2273,9 +2289,9 @@ dependencies = [

 [[package]]
 name = "wayland-protocols-wlr"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa43c961473aed713d44c1f616f775186249dfca657f256d8841ca0690366aba"
+checksum = "fd993de54a40a40fbe5601d9f1fbcaef0aebcc5fda447d7dc8f6dcbaae4f8953"
 dependencies = [
 "bitflags 2.6.0",
 "wayland-backend",
@@ -2286,9 +2302,9 @@ dependencies = [

 [[package]]
 name = "wayland-scanner"
-version = "0.31.3"
+version = "0.31.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edf466fc49a4feb65a511ca403fec3601494d0dee85dbf37fff6fa0dd4eec3b6"
+checksum = "d7b56f89937f1cf2ee1f1259cf2936a17a1f45d8f0aa1019fae6d470d304cfa6"
 dependencies = [
 "proc-macro2",
 "quick-xml",
@@ -2297,9 +2313,9 @@ dependencies = [

 [[package]]
 name = "wayland-sys"
-version = "0.31.3"
+version = "0.31.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a6754825230fa5b27bafaa28c30b3c9e72c55530581220cef401fa422c0fae7"
+checksum = "43676fe2daf68754ecf1d72026e4e6c15483198b5d24e888b74d3f22f887a148"
 dependencies = [
 "dlib",
 "log",
@@ -2346,11 +2362,11 @@ dependencies = [

 [[package]]
 name = "windows"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12342cb4d8e3b046f3d80effd474a7a02447231330ef77d71daa6fbc40681143"
+checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
 dependencies = [
- "windows-core 0.57.0",
+ "windows-core 0.58.0",
 "windows-targets 0.52.6",
 ]

@@ -2365,21 +2381,22 @@ dependencies = [

 [[package]]
 name = "windows-core"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
+checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
 dependencies = [
 "windows-implement",
 "windows-interface",
 "windows-result",
+ "windows-strings",
 "windows-targets 0.52.6",
 ]

 [[package]]
 name = "windows-implement"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
+checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2388,9 +2405,9 @@ dependencies = [

 [[package]]
 name = "windows-interface"
-version = "0.57.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
+checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2399,13 +2416,23 @@ dependencies = [

 [[package]]
 name = "windows-result"
-version = "0.1.2"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e383302e8ec8515204254685643de10811af0ed97ea37210dc26fb0032647f8"
+checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
 dependencies = [
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "windows-strings"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
+dependencies = [
+ "windows-result",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,22 +1,23 @@
 [workspace]
-members = ["input-capture", "input-emulation", "input-event"]
+members = ["input-capture", "input-emulation", "input-event", "lan-mouse-proto"]

 [package]
 name = "lan-mouse"
 description = "Software KVM Switch / mouse & keyboard sharing software for Local Area Networks"
-version = "0.8.0"
+version = "0.9.1"
 edition = "2021"
 license = "GPL-3.0-or-later"
-repository = "https://github.com/ferdinandschober/lan-mouse"
+repository = "https://github.com/feschber/lan-mouse"

 [profile.release]
 strip = true
 lto = "fat"

 [dependencies]
-input-event = { path = "input-event", version = "0.1.0" }
-input-emulation = { path = "input-emulation", version = "0.1.0", default-features = false }
-input-capture = { path = "input-capture", version = "0.1.0", default-features = false }
+input-event = { path = "input-event", version = "0.2.1" }
+input-emulation = { path = "input-emulation", version = "0.2.1", default-features = false }
+input-capture = { path = "input-capture", version = "0.2.0", default-features = false }
+lan-mouse-proto = { path = "lan-mouse-proto", version = "0.1.0" }

 hickory-resolver = "0.24.1"
 toml = "0.8"
@@ -37,10 +38,10 @@ tokio = { version = "1.32.0", features = [
 ] }
 futures = "0.3.28"
 clap = { version = "4.4.11", features = ["derive"] }
-gtk = { package = "gtk4", version = "0.8.1", features = [
+gtk = { package = "gtk4", version = "0.9.0", features = [
    "v4_2",
 ], optional = true }
-adw = { package = "libadwaita", version = "0.6.0", features = [
+adw = { package = "libadwaita", version = "0.7.0", features = [
    "v1_1",
 ], optional = true }
 async-channel = { version = "2.1.1", optional = true }
@@ -54,7 +55,7 @@ tokio-util = "0.7.11"
 libc = "0.2.148"

 [build-dependencies]
-glib-build-tools = { version = "0.19.0", optional = true }
+glib-build-tools = { version = "0.20.0", optional = true }

 [features]
 default = ["wayland", "x11", "xdg_desktop_portal", "libei", "gtk"]
--- a/README.md
+++ b/README.md
@@ -57,6 +57,10 @@ input capture (to send events *to* other clients) on different operating systems
 > If you are using [Wayfire](https://github.com/WayfireWM/wayfire), make sure to use a recent version (must be newer than October 23rd) and **add `shortcuts-inhibit` to the list of plugins in your wayfire config!**
 > Otherwise input capture will not work.

+> [!Important]
+> The mouse cursor will be invisible when sending input to a Windows system if
+> there is no real mouse connected to the machine.
+
 ## Installation
 ### Install via cargo
 ```sh
--- a/flake.nix
+++ b/flake.nix
@@ -16,6 +16,7 @@
    inherit (nixpkgs) lib;
    genSystems = lib.genAttrs [
      "aarch64-darwin"
+      "aarch64-linux"
      "x86_64-darwin"
      "x86_64-linux"
    ];
@@ -50,6 +51,7 @@
          xorg.libX11
          gtk4
          libadwaita
+          librsvg
          xorg.libXtst
        ] ++ lib.optionals stdenv.isDarwin [
          darwin.apple_sdk_11_0.frameworks.CoreGraphics
--- a/input-capture/Cargo.toml
+++ b/input-capture/Cargo.toml
@@ -1,16 +1,16 @@
 [package]
 name = "input-capture"
 description = "cross-platform input-capture library used by lan-mouse"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
-repository = "https://github.com/ferdinandschober/lan-mouse"
+repository = "https://github.com/feschber/lan-mouse"

 [dependencies]
 futures = "0.3.28"
 futures-core = "0.3.30"
 log = "0.4.22"
-input-event = { path = "../input-event", version = "0.1.0" }
+input-event = { path = "../input-event", version = "0.2.1" }
 memmap = "0.7"
 tempfile = "3.8"
 thiserror = "1.0.61"
@@ -40,7 +40,7 @@ wayland-protocols-wlr = { version = "0.3.1", features = [
    "client",
 ], optional = true }
 x11 = { version = "2.21.0", features = ["xlib", "xtest"], optional = true }
-ashpd = { version = "0.8", default-features = false, features = [
+ashpd = { version = "0.9", default-features = false, features = [
    "tokio",
 ], optional = true }
 reis = { version = "0.2", features = ["tokio"], optional = true }
@@ -49,7 +49,7 @@ reis = { version = "0.2", features = ["tokio"], optional = true }
 core-graphics = { version = "0.23", features = ["highsierra"] }

 [target.'cfg(windows)'.dependencies]
-windows = { version = "0.57.0", features = [
+windows = { version = "0.58.0", features = [
    "Win32_System_LibraryLoader",
    "Win32_System_Threading",
    "Win32_Foundation",
--- a/input-capture/src/dummy.rs
+++ b/input-capture/src/dummy.rs
@@ -4,11 +4,7 @@ use std::task::{Context, Poll};
 use async_trait::async_trait;
 use futures_core::Stream;

-use input_event::Event;
-
-use crate::CaptureError;
-
-use super::{CaptureHandle, InputCapture, Position};
+use super::{Capture, CaptureError, CaptureEvent, CaptureHandle, Position};

 pub struct DummyInputCapture {}

@@ -25,7 +21,7 @@ impl Default for DummyInputCapture {
 }

 #[async_trait]
-impl InputCapture for DummyInputCapture {
+impl Capture for DummyInputCapture {
    async fn create(&mut self, _handle: CaptureHandle, _pos: Position) -> Result<(), CaptureError> {
        Ok(())
    }
@@ -44,7 +40,7 @@ impl InputCapture for DummyInputCapture {
 }

 impl Stream for DummyInputCapture {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;

    fn poll_next(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
        Poll::Pending
--- a/input-capture/src/lib.rs
+++ b/input-capture/src/lib.rs
@@ -1,34 +1,52 @@
-use std::fmt::Display;
+use std::{collections::HashSet, fmt::Display, task::Poll};

 use async_trait::async_trait;
+use futures::StreamExt;
 use futures_core::Stream;

-use input_event::Event;
+use input_event::{scancode, Event, KeyboardEvent};

 pub use error::{CaptureCreationError, CaptureError, InputCaptureError};

 pub mod error;

 #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-pub mod libei;
+mod libei;

 #[cfg(target_os = "macos")]
-pub mod macos;
+mod macos;

 #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-pub mod wayland;
+mod wayland;

 #[cfg(windows)]
-pub mod windows;
+mod windows;

 #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-pub mod x11;
+mod x11;

 /// fallback input capture (does not produce events)
-pub mod dummy;
+mod dummy;

 pub type CaptureHandle = u64;

+#[derive(Copy, Clone, Debug, PartialEq)]
+pub enum CaptureEvent {
+    /// capture on this capture handle is now active
+    Begin,
+    /// input event coming from capture handle
+    Input(Event),
+}
+
+impl Display for CaptureEvent {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            CaptureEvent::Begin => write!(f, "begin capture"),
+            CaptureEvent::Input(e) => write!(f, "{e}"),
+        }
+    }
+}
+
 #[derive(Debug, Clone, Copy, Eq, Hash, PartialEq)]
 pub enum Position {
    Left,
@@ -93,10 +111,83 @@ impl Display for Backend {
    }
 }

+pub struct InputCapture {
+    capture: Box<dyn Capture>,
+    pressed_keys: HashSet<scancode::Linux>,
+}
+
+impl InputCapture {
+    /// create a new client with the given id
+    pub async fn create(&mut self, id: CaptureHandle, pos: Position) -> Result<(), CaptureError> {
+        self.capture.create(id, pos).await
+    }
+
+    /// destroy the client with the given id, if it exists
+    pub async fn destroy(&mut self, id: CaptureHandle) -> Result<(), CaptureError> {
+        self.capture.destroy(id).await
+    }
+
+    /// release mouse
+    pub async fn release(&mut self) -> Result<(), CaptureError> {
+        self.pressed_keys.clear();
+        self.capture.release().await
+    }
+
+    /// destroy the input capture
+    pub async fn terminate(&mut self) -> Result<(), CaptureError> {
+        self.capture.terminate().await
+    }
+
+    /// creates a new [`InputCapture`]
+    pub async fn new(backend: Option<Backend>) -> Result<Self, CaptureCreationError> {
+        let capture = create(backend).await?;
+        Ok(Self {
+            capture,
+            pressed_keys: HashSet::new(),
+        })
+    }
+
+    /// check whether the given keys are pressed
+    pub fn keys_pressed(&self, keys: &[scancode::Linux]) -> bool {
+        keys.iter().all(|k| self.pressed_keys.contains(k))
+    }
+
+    fn update_pressed_keys(&mut self, key: u32, state: u8) {
+        if let Ok(scancode) = scancode::Linux::try_from(key) {
+            log::debug!("key: {key}, state: {state}, scancode: {scancode:?}");
+            match state {
+                1 => self.pressed_keys.insert(scancode),
+                _ => self.pressed_keys.remove(&scancode),
+            };
+        }
+    }
+}
+
+impl Stream for InputCapture {
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;
+
+    fn poll_next(
+        mut self: std::pin::Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
+        match self.capture.poll_next_unpin(cx) {
+            Poll::Ready(e) => {
+                if let Some(Ok((
+                    _,
+                    CaptureEvent::Input(Event::Keyboard(KeyboardEvent::Key { key, state, .. })),
+                ))) = e
+                {
+                    self.update_pressed_keys(key, state);
+                }
+                Poll::Ready(e)
+            }
+            Poll::Pending => Poll::Pending,
+        }
+    }
+}
+
 #[async_trait]
-pub trait InputCapture:
-    Stream<Item = Result<(CaptureHandle, Event), CaptureError>> + Unpin
-{
+trait Capture: Stream<Item = Result<(CaptureHandle, CaptureEvent), CaptureError>> + Unpin {
    /// create a new client with the given id
    async fn create(&mut self, id: CaptureHandle, pos: Position) -> Result<(), CaptureError>;

@@ -110,10 +201,10 @@ pub trait InputCapture:
    async fn terminate(&mut self) -> Result<(), CaptureError>;
 }

-pub async fn create_backend(
+async fn create_backend(
    backend: Backend,
 ) -> Result<
-    Box<dyn InputCapture<Item = Result<(CaptureHandle, Event), CaptureError>>>,
+    Box<dyn Capture<Item = Result<(CaptureHandle, CaptureEvent), CaptureError>>>,
    CaptureCreationError,
 > {
    match backend {
@@ -131,10 +222,10 @@ pub async fn create_backend(
    }
 }

-pub async fn create(
+async fn create(
    backend: Option<Backend>,
 ) -> Result<
-    Box<dyn InputCapture<Item = Result<(CaptureHandle, Event), CaptureError>>>,
+    Box<dyn Capture<Item = Result<(CaptureHandle, CaptureEvent), CaptureError>>>,
    CaptureCreationError,
 > {
    if let Some(backend) = backend {
--- a/input-capture/src/libei.rs
+++ b/input-capture/src/libei.rs
@@ -36,9 +36,11 @@ use once_cell::sync::Lazy;

 use input_event::Event;

+use crate::CaptureEvent;
+
 use super::{
    error::{CaptureError, LibeiCaptureCreationError, ReisConvertEventStreamError},
-    CaptureHandle, InputCapture as LanMouseInputCapture, Position,
+    Capture as LanMouseInputCapture, CaptureHandle, Position,
 };

 /* there is a bug in xdg-remote-desktop-portal-gnome / mutter that
@@ -56,7 +58,7 @@ enum LibeiNotifyEvent {
 pub struct LibeiInputCapture<'a> {
    input_capture: Pin<Box<InputCapture<'a>>>,
    capture_task: JoinHandle<Result<(), CaptureError>>,
-    event_rx: Receiver<(CaptureHandle, Event)>,
+    event_rx: Receiver<(CaptureHandle, CaptureEvent)>,
    notify_capture: Sender<LibeiNotifyEvent>,
    notify_release: Arc<Notify>,
    cancellation_token: CancellationToken,
@@ -91,13 +93,35 @@ fn pos_to_barrier(r: &Region, pos: Position) -> (i32, i32, i32, i32) {
    }
 }

+/// Ashpd does not expose fields
+#[derive(Clone, Copy, Debug)]
+struct ICBarrier {
+    barrier_id: BarrierID,
+    position: (i32, i32, i32, i32),
+}
+
+impl ICBarrier {
+    fn new(barrier_id: BarrierID, position: (i32, i32, i32, i32)) -> Self {
+        Self {
+            barrier_id,
+            position,
+        }
+    }
+}
+
+impl From<ICBarrier> for Barrier {
+    fn from(barrier: ICBarrier) -> Self {
+        Barrier::new(barrier.barrier_id, barrier.position)
+    }
+}
+
 fn select_barriers(
    zones: &Zones,
-    clients: &Vec<(CaptureHandle, Position)>,
+    clients: &[(CaptureHandle, Position)],
    next_barrier_id: &mut u32,
-) -> (Vec<Barrier>, HashMap<BarrierID, CaptureHandle>) {
+) -> (Vec<ICBarrier>, HashMap<BarrierID, CaptureHandle>) {
    let mut client_for_barrier = HashMap::new();
-    let mut barriers: Vec<Barrier> = vec![];
+    let mut barriers: Vec<ICBarrier> = vec![];

    for (handle, pos) in clients {
        let mut client_barriers = zones
@@ -108,7 +132,7 @@ fn select_barriers(
                *next_barrier_id = id + 1;
                let position = pos_to_barrier(r, *pos);
                client_for_barrier.insert(id, *handle);
-                Barrier::new(id, position)
+                ICBarrier::new(id, position)
            })
            .collect();
        barriers.append(&mut client_barriers);
@@ -118,10 +142,10 @@ fn select_barriers(

 async fn update_barriers(
    input_capture: &InputCapture<'_>,
-    session: &Session<'_>,
-    active_clients: &Vec<(CaptureHandle, Position)>,
+    session: &Session<'_, InputCapture<'_>>,
+    active_clients: &[(CaptureHandle, Position)],
    next_barrier_id: &mut u32,
-) -> Result<HashMap<BarrierID, CaptureHandle>, ashpd::Error> {
+) -> Result<(Vec<ICBarrier>, HashMap<BarrierID, CaptureHandle>), ashpd::Error> {
    let zones = input_capture.zones(session).await?.response()?;
    log::debug!("zones: {zones:?}");

@@ -129,17 +153,18 @@ async fn update_barriers(
    log::debug!("barriers: {barriers:?}");
    log::debug!("client for barrier id: {id_map:?}");

+    let ashpd_barriers: Vec<Barrier> = barriers.iter().copied().map(|b| b.into()).collect();
    let response = input_capture
-        .set_pointer_barriers(session, &barriers, zones.zone_set())
+        .set_pointer_barriers(session, &ashpd_barriers, zones.zone_set())
        .await?;
    let response = response.response()?;
    log::debug!("{response:?}");
-    Ok(id_map)
+    Ok((barriers, id_map))
 }

 async fn create_session<'a>(
    input_capture: &'a InputCapture<'a>,
-) -> std::result::Result<(Session<'a>, BitFlags<Capabilities>), ashpd::Error> {
+) -> std::result::Result<(Session<'_, InputCapture<'_>>, BitFlags<Capabilities>), ashpd::Error> {
    log::debug!("creating input capture session");
    input_capture
        .create_session(
@@ -151,7 +176,7 @@ async fn create_session<'a>(

 async fn connect_to_eis(
    input_capture: &InputCapture<'_>,
-    session: &Session<'_>,
+    session: &Session<'_, InputCapture<'_>>,
 ) -> Result<(ei::Context, EiConvertEventStream), CaptureError> {
    log::debug!("connect_to_eis");
    let fd = input_capture.connect_to_eis(session).await?;
@@ -178,7 +203,7 @@ async fn connect_to_eis(
 async fn libei_event_handler(
    mut ei_event_stream: EiConvertEventStream,
    context: ei::Context,
-    event_tx: Sender<(CaptureHandle, Event)>,
+    event_tx: Sender<(CaptureHandle, CaptureEvent)>,
    release_session: Arc<Notify>,
    current_client: Rc<Cell<Option<CaptureHandle>>>,
 ) -> Result<(), CaptureError> {
@@ -230,12 +255,12 @@ impl<'a> LibeiInputCapture<'a> {
    }
 }

-async fn do_capture<'a>(
-    input_capture: *const InputCapture<'a>,
+async fn do_capture(
+    input_capture: *const InputCapture<'static>,
    mut capture_event: Receiver<LibeiNotifyEvent>,
    notify_release: Arc<Notify>,
-    session: Option<(Session<'a>, BitFlags<Capabilities>)>,
-    event_tx: Sender<(CaptureHandle, Event)>,
+    session: Option<(Session<'_, InputCapture<'_>>, BitFlags<Capabilities>)>,
+    event_tx: Sender<(CaptureHandle, CaptureEvent)>,
    cancellation_token: CancellationToken,
 ) -> Result<(), CaptureError> {
    let mut session = session.map(|s| s.0);
@@ -289,7 +314,7 @@ async fn do_capture<'a>(
                input_capture,
                &mut session,
                &event_tx,
-                &mut active_clients,
+                &active_clients,
                &mut next_barrier_id,
                &notify_release,
                (cancel_session.clone(), cancel_update.clone()),
@@ -330,9 +355,9 @@ async fn do_capture<'a>(

 async fn do_capture_session(
    input_capture: &InputCapture<'_>,
-    session: &mut Session<'_>,
-    event_tx: &Sender<(CaptureHandle, Event)>,
-    active_clients: &mut Vec<(CaptureHandle, Position)>,
+    session: &mut Session<'_, InputCapture<'_>>,
+    event_tx: &Sender<(CaptureHandle, CaptureEvent)>,
+    active_clients: &[(CaptureHandle, Position)],
    next_barrier_id: &mut u32,
    notify_release: &Notify,
    cancel: (CancellationToken, CancellationToken),
@@ -345,7 +370,7 @@ async fn do_capture_session(
    let (context, ei_event_stream) = connect_to_eis(input_capture, session).await?;

    // set barriers
-    let client_for_barrier_id =
+    let (barriers, client_for_barrier_id) =
        update_barriers(input_capture, session, active_clients, next_barrier_id).await?;

    log::debug!("enabling session");
@@ -388,13 +413,19 @@ async fn do_capture_session(
                    let activated = activated.ok_or(CaptureError::ActivationClosed)?;
                    log::debug!("activated: {activated:?}");

-                    let client = *client_for_barrier_id
-                        .get(&activated.barrier_id())
-                        .expect("invalid barrier id");
+                    // get barrier id from activation
+                    let barrier_id = match activated.barrier_id() {
+                        Some(bid) => bid,
+                        // workaround for KDE plasma not reporting barrier ids
+                        None => find_corresponding_client(&barriers, activated.cursor_position().expect("no cursor position reported by compositor")),
+                    };
+
+                    // find client corresponding to barrier
+                    let client = *client_for_barrier_id.get(&barrier_id).expect("invalid barrier id");
                    current_client.replace(Some(client));

                    // client entered => send event
-                    event_tx.send((client, Event::Enter())).await.expect("no channel");
+                    event_tx.send((client, CaptureEvent::Begin)).await.expect("no channel");

                    tokio::select! {
                        _ = notify_release.notified() => { /* capture release */
@@ -449,15 +480,20 @@ async fn do_capture_session(
    Ok(())
 }

-async fn release_capture(
-    input_capture: &InputCapture<'_>,
-    session: &Session<'_>,
+async fn release_capture<'a>(
+    input_capture: &InputCapture<'a>,
+    session: &Session<'a, InputCapture<'a>>,
    activated: Activated,
    current_client: CaptureHandle,
    active_clients: &[(CaptureHandle, Position)],
 ) -> Result<(), CaptureError> {
-    log::debug!("releasing input capture {}", activated.activation_id());
-    let (x, y) = activated.cursor_position();
+    if let Some(activation_id) = activated.activation_id() {
+        log::debug!("releasing input capture {activation_id}");
+    }
+    let (x, y) = activated
+        .cursor_position()
+        .expect("compositor did not report cursor position!");
+    log::debug!("client entered @ ({x}, {y})");
    let pos = active_clients
        .iter()
        .filter(|(c, _)| *c == current_client)
@@ -474,11 +510,39 @@ async fn release_capture(
    // release 1px to the right of the entered zone
    let cursor_position = (x as f64 + dx, y as f64 + dy);
    input_capture
-        .release(session, activated.activation_id(), cursor_position)
+        .release(session, activated.activation_id(), Some(cursor_position))
        .await?;
    Ok(())
 }

+fn find_corresponding_client(barriers: &[ICBarrier], pos: (f32, f32)) -> BarrierID {
+    barriers
+        .iter()
+        .copied()
+        .min_by_key(|b| {
+            let (x1, y1, x2, y2) = b.position;
+            let (x1, y1, x2, y2) = (x1 as f32, y1 as f32, x2 as f32, y2 as f32);
+            distance_to_line(((x1, y1), (x2, y2)), pos) as i32
+        })
+        .expect("could not find barrier corresponding to client")
+        .barrier_id
+}
+
+fn distance_to_line(line: ((f32, f32), (f32, f32)), p: (f32, f32)) -> f32 {
+    let ((x1, y1), (x2, y2)) = line;
+    let (x0, y0) = p;
+    /*
+     * we use the fact that for the triangle spanned by the line and p,
+     * the height of the triangle is the desired distance and can be calculated by
+     * h = 2A / b with b being the line_length and
+     */
+    let double_triangle_area = ((y2 - y1) * x0 - (x2 - x1) * y0 + x2 * y1 - y2 * x1).abs();
+    let line_length = ((y2 - y1).powf(2.0) + (x2 - x1).powf(2.0)).sqrt();
+    let distance = double_triangle_area / line_length;
+    log::debug!("distance to line({line:?}, {p:?}) = {distance}");
+    distance
+}
+
 static ALL_CAPABILITIES: &[DeviceCapability] = &[
    DeviceCapability::Pointer,
    DeviceCapability::PointerAbsolute,
@@ -492,7 +556,7 @@ async fn handle_ei_event(
    ei_event: EiEvent,
    current_client: Option<CaptureHandle>,
    context: &ei::Context,
-    event_tx: &Sender<(CaptureHandle, Event)>,
+    event_tx: &Sender<(CaptureHandle, CaptureEvent)>,
    release_session: &Notify,
 ) -> Result<(), CaptureError> {
    match ei_event {
@@ -513,7 +577,7 @@ async fn handle_ei_event(
        _ => {
            if let Some(handle) = current_client {
                for event in Event::from_ei_event(ei_event) {
-                    event_tx.send((handle, event)).await.expect("no channel");
+                    event_tx.send((handle, CaptureEvent::Input(event))).await.expect("no channel");
                }
            }
        }
@@ -565,7 +629,7 @@ impl<'a> Drop for LibeiInputCapture<'a> {
 }

 impl<'a> Stream for LibeiInputCapture<'a> {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;

    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
        match self.capture_task.poll_unpin(cx) {
--- a/input-capture/src/macos.rs
+++ b/input-capture/src/macos.rs
@@ -1,9 +1,9 @@
 use crate::{
-    error::MacOSInputCaptureCreationError, CaptureError, CaptureHandle, InputCapture, Position,
+    error::MacOSInputCaptureCreationError, Capture, CaptureError, CaptureEvent, CaptureHandle,
+    Position,
 };
 use async_trait::async_trait;
 use futures_core::Stream;
-use input_event::Event;
 use std::pin::Pin;
 use std::task::{Context, Poll};

@@ -16,7 +16,7 @@ impl MacOSInputCapture {
 }

 impl Stream for MacOSInputCapture {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;

    fn poll_next(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
        Poll::Pending
@@ -24,7 +24,7 @@ impl Stream for MacOSInputCapture {
 }

 #[async_trait]
-impl InputCapture for MacOSInputCapture {
+impl Capture for MacOSInputCapture {
    async fn create(&mut self, _id: CaptureHandle, _pos: Position) -> Result<(), CaptureError> {
        Ok(())
    }
--- a/input-capture/src/wayland.rs
+++ b/input-capture/src/wayland.rs
@@ -1,11 +1,10 @@
 use async_trait::async_trait;
 use futures_core::Stream;
-use memmap::MmapOptions;
 use std::{
    collections::VecDeque,
    env,
    io::{self, ErrorKind},
-    os::fd::{AsFd, OwnedFd, RawFd},
+    os::fd::{AsFd, RawFd},
    pin::Pin,
    task::{ready, Context, Poll},
 };
@@ -14,7 +13,7 @@ use tokio::io::unix::AsyncFd;
 use std::{
    fs::File,
    io::{BufWriter, Write},
-    os::unix::prelude::{AsRawFd, FromRawFd},
+    os::unix::prelude::AsRawFd,
    sync::Arc,
 };

@@ -59,15 +58,13 @@ use wayland_client::{
    Connection, Dispatch, DispatchError, EventQueue, QueueHandle, WEnum,
 };

-use tempfile;
-
 use input_event::{Event, KeyboardEvent, PointerEvent};

-use crate::CaptureError;
+use crate::{CaptureError, CaptureEvent};

 use super::{
    error::{LayerShellCaptureCreationError, WaylandBindError},
-    CaptureHandle, InputCapture, Position,
+    Capture, CaptureHandle, Position,
 };

 struct Globals {
@@ -108,10 +105,10 @@ struct State {
    client_for_window: Vec<(Arc<Window>, CaptureHandle)>,
    focused: Option<(Arc<Window>, CaptureHandle)>,
    g: Globals,
-    wayland_fd: OwnedFd,
+    wayland_fd: RawFd,
    read_guard: Option<ReadEventsGuard>,
    qh: QueueHandle<Self>,
-    pending_events: VecDeque<(CaptureHandle, Event)>,
+    pending_events: VecDeque<(CaptureHandle, CaptureEvent)>,
    output_info: Vec<(WlOutput, OutputInfo)>,
    scroll_discrete_pending: bool,
 }
@@ -123,7 +120,7 @@ struct Inner {

 impl AsRawFd for Inner {
    fn as_raw_fd(&self) -> RawFd {
-        self.state.wayland_fd.as_raw_fd()
+        self.state.wayland_fd
    }
 }

@@ -308,10 +305,7 @@ impl WaylandInputCapture {
        // flush outgoing events
        queue.flush()?;

-        // prepare reading wayland events
-        let read_guard = queue.prepare_read().unwrap(); // there can not yet be events to dispatch
-        let wayland_fd = read_guard.connection_fd().try_clone_to_owned().unwrap();
-        std::mem::drop(read_guard);
+        let wayland_fd = queue.as_fd().as_raw_fd();

        let mut state = State {
            pointer: None,
@@ -565,7 +559,7 @@ impl Inner {
 }

 #[async_trait]
-impl InputCapture for WaylandInputCapture {
+impl Capture for WaylandInputCapture {
    async fn create(&mut self, handle: CaptureHandle, pos: Position) -> Result<(), CaptureError> {
        self.add_client(handle, pos);
        let inner = self.0.get_mut();
@@ -591,7 +585,7 @@ impl InputCapture for WaylandInputCapture {
 }

 impl Stream for WaylandInputCapture {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;

    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
        if let Some(event) = self.0.get_mut().state.pending_events.pop_front() {
@@ -700,7 +694,7 @@ impl Dispatch<WlPointer, ()> for State {
                    .iter()
                    .find(|(w, _c)| w.surface == surface)
                    .unwrap();
-                app.pending_events.push_back((*client, Event::Enter()));
+                app.pending_events.push_back((*client, CaptureEvent::Begin));
            }
            wl_pointer::Event::Leave { .. } => {
                /* There are rare cases, where when a window is opened in
@@ -724,11 +718,11 @@ impl Dispatch<WlPointer, ()> for State {
                let (_, client) = app.focused.as_ref().unwrap();
                app.pending_events.push_back((
                    *client,
-                    Event::Pointer(PointerEvent::Button {
+                    CaptureEvent::Input(Event::Pointer(PointerEvent::Button {
                        time,
                        button,
                        state: u32::from(state),
-                    }),
+                    })),
                ));
            }
            wl_pointer::Event::Axis { time, axis, value } => {
@@ -741,11 +735,11 @@ impl Dispatch<WlPointer, ()> for State {
                } else {
                    app.pending_events.push_back((
                        *client,
-                        Event::Pointer(PointerEvent::Axis {
+                        CaptureEvent::Input(Event::Pointer(PointerEvent::Axis {
                            time,
                            axis: u32::from(axis) as u8,
                            value,
-                        }),
+                        })),
                    ));
                }
            }
@@ -754,10 +748,10 @@ impl Dispatch<WlPointer, ()> for State {
                app.scroll_discrete_pending = true;
                app.pending_events.push_back((
                    *client,
-                    Event::Pointer(PointerEvent::AxisDiscrete120 {
+                    CaptureEvent::Input(Event::Pointer(PointerEvent::AxisDiscrete120 {
                        axis: u32::from(axis) as u8,
                        value: value120,
-                    }),
+                    })),
                ));
            }
            wl_pointer::Event::Frame {} => {
@@ -793,11 +787,11 @@ impl Dispatch<WlKeyboard, ()> for State {
                if let Some(client) = client {
                    app.pending_events.push_back((
                        *client,
-                        Event::Keyboard(KeyboardEvent::Key {
+                        CaptureEvent::Input(Event::Keyboard(KeyboardEvent::Key {
                            time,
                            key,
                            state: u32::from(state) as u8,
-                        }),
+                        })),
                    ));
                }
            }
@@ -811,24 +805,15 @@ impl Dispatch<WlKeyboard, ()> for State {
                if let Some(client) = client {
                    app.pending_events.push_back((
                        *client,
-                        Event::Keyboard(KeyboardEvent::Modifiers {
-                            mods_depressed,
-                            mods_latched,
-                            mods_locked,
+                        CaptureEvent::Input(Event::Keyboard(KeyboardEvent::Modifiers {
+                            depressed: mods_depressed,
+                            latched: mods_latched,
+                            locked: mods_locked,
                            group,
-                        }),
+                        })),
                    ));
                }
            }
-            wl_keyboard::Event::Keymap {
-                format: _,
-                fd,
-                size: _,
-            } => {
-                let fd = unsafe { &File::from_raw_fd(fd.as_raw_fd()) };
-                let _mmap = unsafe { MmapOptions::new().map_copy(fd).unwrap() };
-                // TODO keymap
-            }
            _ => (),
        }
    }
@@ -855,7 +840,7 @@ impl Dispatch<ZwpRelativePointerV1, ()> for State {
                let time = (((utime_hi as u64) << 32 | utime_lo as u64) / 1000) as u32;
                app.pending_events.push_back((
                    *client,
-                    Event::Pointer(PointerEvent::Motion { time, dx, dy }),
+                    CaptureEvent::Input(Event::Pointer(PointerEvent::Motion { time, dx, dy })),
                ));
            }
        }
--- a/input-capture/src/windows.rs
+++ b/input-capture/src/windows.rs
@@ -37,7 +37,7 @@ use input_event::{
    Event, KeyboardEvent, PointerEvent, BTN_BACK, BTN_FORWARD, BTN_LEFT, BTN_MIDDLE, BTN_RIGHT,
 };

-use super::{CaptureError, CaptureHandle, InputCapture, Position};
+use super::{Capture, CaptureError, CaptureEvent, CaptureHandle, Position};

 enum Request {
    Create(CaptureHandle, Position),
@@ -45,7 +45,7 @@ enum Request {
 }

 pub struct WindowsInputCapture {
-    event_rx: Receiver<(CaptureHandle, Event)>,
+    event_rx: Receiver<(CaptureHandle, CaptureEvent)>,
    msg_thread: Option<std::thread::JoinHandle<()>>,
 }

@@ -64,7 +64,7 @@ unsafe fn signal_message_thread(event_type: EventType) {
 }

 #[async_trait]
-impl InputCapture for WindowsInputCapture {
+impl Capture for WindowsInputCapture {
    async fn create(&mut self, handle: CaptureHandle, pos: Position) -> Result<(), CaptureError> {
        unsafe {
            {
@@ -100,7 +100,7 @@ impl InputCapture for WindowsInputCapture {
 static mut REQUEST_BUFFER: Mutex<Vec<Request>> = Mutex::new(Vec::new());
 static mut ACTIVE_CLIENT: Option<CaptureHandle> = None;
 static mut CLIENT_FOR_POS: Lazy<HashMap<Position, CaptureHandle>> = Lazy::new(HashMap::new);
-static mut EVENT_TX: Option<Sender<(CaptureHandle, Event)>> = None;
+static mut EVENT_TX: Option<Sender<(CaptureHandle, CaptureEvent)>> = None;
 static mut EVENT_THREAD_ID: AtomicU32 = AtomicU32::new(0);
 unsafe fn set_event_tid(tid: u32) {
    EVENT_THREAD_ID.store(tid, Ordering::SeqCst);
@@ -249,7 +249,7 @@ fn clamp_to_display_bounds(prev_point: (i32, i32), point: (i32, i32)) -> (i32, i
    (x.clamp(min_x, max_x), y.clamp(min_y, max_y))
 }

-unsafe fn send_blocking(event: Event) {
+unsafe fn send_blocking(event: CaptureEvent) {
    if let Some(active) = ACTIVE_CLIENT {
        block_on(async move {
            let _ = EVENT_TX.as_ref().unwrap().send((active, event)).await;
@@ -291,7 +291,7 @@ unsafe fn check_client_activation(wparam: WPARAM, lparam: LPARAM) -> bool {

    /* notify main thread */
    log::debug!("ENTERED @ {prev_pos:?} -> {curr_pos:?}");
-    send_blocking(Event::Enter());
+    send_blocking(CaptureEvent::Begin);

    ret
 }
@@ -313,7 +313,7 @@ unsafe extern "system" fn mouse_proc(ncode: i32, wparam: WPARAM, lparam: LPARAM)
    let Some(pointer_event) = to_mouse_event(wparam, lparam) else {
        return LRESULT(1);
    };
-    let event = (client, Event::Pointer(pointer_event));
+    let event = (client, CaptureEvent::Input(Event::Pointer(pointer_event)));

    /* notify mainthread (drop events if sending too fast) */
    if let Err(e) = EVENT_TX.as_ref().unwrap().try_send(event) {
@@ -334,7 +334,7 @@ unsafe extern "system" fn kybrd_proc(ncode: i32, wparam: WPARAM, lparam: LPARAM)
    let Some(key_event) = to_key_event(wparam, lparam) else {
        return LRESULT(1);
    };
-    let event = (client, Event::Keyboard(key_event));
+    let event = (client, CaptureEvent::Input(Event::Keyboard(key_event)));

    if let Err(e) = EVENT_TX.as_ref().unwrap().try_send(event) {
        log::warn!("e: {e}");
@@ -519,7 +519,7 @@ fn message_thread(ready_tx: mpsc::Sender<()>) {
        }

        /* window is used ro receive WM_DISPLAYCHANGE messages */
-        let ret = CreateWindowExW(
+        CreateWindowExW(
            Default::default(),
            w!("lan-mouse-message-window-class"),
            w!("lan-mouse-msg-window"),
@@ -532,10 +532,8 @@ fn message_thread(ready_tx: mpsc::Sender<()>) {
            HMENU::default(),
            instance,
            None,
-        );
-        if ret.0 == 0 {
-            panic!("CreateWindowExW");
-        }
+        )
+        .expect("CreateWindowExW");

        /* run message loop */
        loop {
@@ -543,7 +541,7 @@ fn message_thread(ready_tx: mpsc::Sender<()>) {
            let Some(msg) = get_msg() else {
                break;
            };
-            if msg.hwnd.0 == 0 {
+            if msg.hwnd.0.is_null() {
                /* messages sent via PostThreadMessage */
                match msg.wParam.0 {
                    x if x == EventType::Exit as usize => break,
@@ -616,7 +614,7 @@ impl WindowsInputCapture {
 }

 impl Stream for WindowsInputCapture {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;
    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
        match ready!(self.event_rx.poll_recv(cx)) {
            None => Poll::Ready(None),
--- a/input-capture/src/x11.rs
+++ b/input-capture/src/x11.rs
@@ -3,13 +3,10 @@ use std::task::Poll;
 use async_trait::async_trait;
 use futures_core::Stream;

-use crate::CaptureError;
-
-use super::InputCapture;
-use input_event::Event;
-
-use super::error::X11InputCaptureCreationError;
-use super::{CaptureHandle, Position};
+use super::{
+    error::X11InputCaptureCreationError, Capture, CaptureError, CaptureEvent, CaptureHandle,
+    Position,
+};

 pub struct X11InputCapture {}

@@ -20,7 +17,7 @@ impl X11InputCapture {
 }

 #[async_trait]
-impl InputCapture for X11InputCapture {
+impl Capture for X11InputCapture {
    async fn create(&mut self, _id: CaptureHandle, _pos: Position) -> Result<(), CaptureError> {
        Ok(())
    }
@@ -39,7 +36,7 @@ impl InputCapture for X11InputCapture {
 }

 impl Stream for X11InputCapture {
-    type Item = Result<(CaptureHandle, Event), CaptureError>;
+    type Item = Result<(CaptureHandle, CaptureEvent), CaptureError>;

    fn poll_next(
        self: std::pin::Pin<&mut Self>,
--- a/input-emulation/Cargo.toml
+++ b/input-emulation/Cargo.toml
@@ -1,35 +1,54 @@
 [package]
 name = "input-emulation"
 description = "cross-platform input emulation library used by lan-mouse"
-version = "0.1.0"
+version = "0.2.1"
 edition = "2021"
 license = "GPL-3.0-or-later"
-repository = "https://github.com/ferdinandschober/lan-mouse"
+repository = "https://github.com/feschber/lan-mouse"

 [dependencies]
 async-trait = "0.1.80"
 futures = "0.3.28"
 log = "0.4.22"
-input-event = { path = "../input-event", version = "0.1.0" }
+input-event = { path = "../input-event", version = "0.2.1" }
 thiserror = "1.0.61"
-tokio = { version = "1.32.0", features = ["io-util", "io-std", "macros", "net", "process", "rt", "sync", "signal"] }
+tokio = { version = "1.32.0", features = [
+    "io-util",
+    "io-std",
+    "macros",
+    "net",
+    "process",
+    "rt",
+    "sync",
+    "signal",
+] }
 once_cell = "1.19.0"

 [target.'cfg(all(unix, not(target_os="macos")))'.dependencies]
-wayland-client = { version="0.31.1", optional = true }
-wayland-protocols = { version="0.32.1", features=["client", "staging", "unstable"], optional = true }
-wayland-protocols-wlr = { version="0.3.1", features=["client"], optional = true }
-wayland-protocols-misc = { version="0.3.1", features=["client"], optional = true }
+wayland-client = { version = "0.31.1", optional = true }
+wayland-protocols = { version = "0.32.1", features = [
+    "client",
+    "staging",
+    "unstable",
+], optional = true }
+wayland-protocols-wlr = { version = "0.3.1", features = [
+    "client",
+], optional = true }
+wayland-protocols-misc = { version = "0.3.1", features = [
+    "client",
+], optional = true }
 x11 = { version = "2.21.0", features = ["xlib", "xtest"], optional = true }
-ashpd = { version = "0.8", default-features = false, features = ["tokio"], optional = true }
-reis = { version = "0.2", features = [ "tokio" ], optional = true }
+ashpd = { version = "0.9", default-features = false, features = [
+    "tokio",
+], optional = true }
+reis = { version = "0.2", features = ["tokio"], optional = true }

 [target.'cfg(target_os="macos")'.dependencies]
 core-graphics = { version = "0.23", features = ["highsierra"] }
 keycode = "0.4.0"

 [target.'cfg(windows)'.dependencies]
-windows = {  version = "0.57.0", features = [
+windows = { version = "0.58.0", features = [
    "Win32_System_LibraryLoader",
    "Win32_System_Threading",
    "Win32_Foundation",
@@ -41,7 +60,12 @@ windows = {  version = "0.57.0", features = [

 [features]
 default = ["wayland", "x11", "xdg_desktop_portal", "libei"]
-wayland = ["dep:wayland-client", "dep:wayland-protocols", "dep:wayland-protocols-wlr", "dep:wayland-protocols-misc" ]
+wayland = [
+    "dep:wayland-client",
+    "dep:wayland-protocols",
+    "dep:wayland-protocols-wlr",
+    "dep:wayland-protocols-misc",
+]
 x11 = ["dep:x11"]
 xdg_desktop_portal = ["dep:ashpd"]
 libei = ["dep:reis", "dep:ashpd"]
--- a/input-emulation/src/dummy.rs
+++ b/input-emulation/src/dummy.rs
@@ -3,19 +3,19 @@ use input_event::Event;

 use crate::error::EmulationError;

-use super::{EmulationHandle, InputEmulation};
+use super::{Emulation, EmulationHandle};

 #[derive(Default)]
-pub struct DummyEmulation;
+pub(crate) struct DummyEmulation;

 impl DummyEmulation {
-    pub fn new() -> Self {
+    pub(crate) fn new() -> Self {
        Self {}
    }
 }

 #[async_trait]
-impl InputEmulation for DummyEmulation {
+impl Emulation for DummyEmulation {
    async fn consume(
        &mut self,
        event: Event,
--- a/input-emulation/src/error.rs
+++ b/input-emulation/src/error.rs
@@ -87,19 +87,25 @@ pub enum EmulationCreationError {

 impl EmulationCreationError {
    /// request was intentionally denied by the user
-    #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
    pub(crate) fn cancelled_by_user(&self) -> bool {
-        matches!(
+        #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
+        if matches!(
            self,
            EmulationCreationError::Libei(LibeiEmulationCreationError::Ashpd(Response(
                ResponseError::Cancelled,
-            ))) | EmulationCreationError::Xdp(XdpEmulationCreationError::Ashpd(Response(
+            )))
+        ) {
+            return true;
+        }
+        #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
+        if matches!(
+            self,
+            EmulationCreationError::Xdp(XdpEmulationCreationError::Ashpd(Response(
                ResponseError::Cancelled,
            )))
-        )
-    }
-    #[cfg(not(all(unix, feature = "libei", not(target_os = "macos"))))]
-    pub(crate) fn cancelled_by_user(&self) -> bool {
+        ) {
+            return true;
+        }
        false
    }
 }
--- a/input-emulation/src/lib.rs
+++ b/input-emulation/src/lib.rs
@@ -1,31 +1,34 @@
 use async_trait::async_trait;
-use std::fmt::Display;
+use std::{
+    collections::{HashMap, HashSet},
+    fmt::Display,
+};

-use input_event::Event;
+use input_event::{Event, KeyboardEvent};

 pub use self::error::{EmulationCreationError, EmulationError, InputEmulationError};

 #[cfg(windows)]
-pub mod windows;
+mod windows;

 #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-pub mod x11;
+mod x11;

 #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-pub mod wlroots;
+mod wlroots;

 #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
-pub mod xdg_desktop_portal;
+mod xdg_desktop_portal;

 #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-pub mod libei;
+mod libei;

 #[cfg(target_os = "macos")]
-pub mod macos;
+mod macos;

 /// fallback input emulation (logs events)
-pub mod dummy;
-pub mod error;
+mod dummy;
+mod error;

 pub type EmulationHandle = u64;

@@ -66,8 +69,166 @@ impl Display for Backend {
    }
 }

+pub struct InputEmulation {
+    emulation: Box<dyn Emulation>,
+    handles: HashSet<EmulationHandle>,
+    pressed_keys: HashMap<EmulationHandle, HashSet<u32>>,
+}
+
+impl InputEmulation {
+    async fn with_backend(backend: Backend) -> Result<InputEmulation, EmulationCreationError> {
+        let emulation: Box<dyn Emulation> = match backend {
+            #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
+            Backend::Wlroots => Box::new(wlroots::WlrootsEmulation::new()?),
+            #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
+            Backend::Libei => Box::new(libei::LibeiEmulation::new().await?),
+            #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
+            Backend::X11 => Box::new(x11::X11Emulation::new()?),
+            #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
+            Backend::Xdp => Box::new(xdg_desktop_portal::DesktopPortalEmulation::new().await?),
+            #[cfg(windows)]
+            Backend::Windows => Box::new(windows::WindowsEmulation::new()?),
+            #[cfg(target_os = "macos")]
+            Backend::MacOs => Box::new(macos::MacOSEmulation::new()?),
+            Backend::Dummy => Box::new(dummy::DummyEmulation::new()),
+        };
+        Ok(Self {
+            emulation,
+            handles: HashSet::new(),
+            pressed_keys: HashMap::new(),
+        })
+    }
+
+    pub async fn new(backend: Option<Backend>) -> Result<InputEmulation, EmulationCreationError> {
+        if let Some(backend) = backend {
+            let b = Self::with_backend(backend).await;
+            if b.is_ok() {
+                log::info!("using emulation backend: {backend}");
+            }
+            return b;
+        }
+
+        for backend in [
+            #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
+            Backend::Wlroots,
+            #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
+            Backend::Libei,
+            #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
+            Backend::Xdp,
+            #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
+            Backend::X11,
+            #[cfg(windows)]
+            Backend::Windows,
+            #[cfg(target_os = "macos")]
+            Backend::MacOs,
+            Backend::Dummy,
+        ] {
+            match Self::with_backend(backend).await {
+                Ok(b) => {
+                    log::info!("using emulation backend: {backend}");
+                    return Ok(b);
+                }
+                Err(e) if e.cancelled_by_user() => return Err(e),
+                Err(e) => log::warn!("{e}"),
+            }
+        }
+
+        Err(EmulationCreationError::NoAvailableBackend)
+    }
+
+    pub async fn consume(
+        &mut self,
+        event: Event,
+        handle: EmulationHandle,
+    ) -> Result<(), EmulationError> {
+        match event {
+            Event::Keyboard(KeyboardEvent::Key { key, state, .. }) => {
+                // prevent double pressed / released keys
+                if self.update_pressed_keys(handle, key, state) {
+                    self.emulation.consume(event, handle).await?;
+                }
+                Ok(())
+            }
+            _ => self.emulation.consume(event, handle).await,
+        }
+    }
+
+    pub async fn create(&mut self, handle: EmulationHandle) -> bool {
+        if self.handles.insert(handle) {
+            self.pressed_keys.insert(handle, HashSet::new());
+            self.emulation.create(handle).await;
+            true
+        } else {
+            false
+        }
+    }
+
+    pub async fn destroy(&mut self, handle: EmulationHandle) {
+        let _ = self.release_keys(handle).await;
+        if self.handles.remove(&handle) {
+            self.pressed_keys.remove(&handle);
+            self.emulation.destroy(handle).await
+        }
+    }
+
+    pub async fn terminate(&mut self) {
+        for handle in self.handles.iter().cloned().collect::<Vec<_>>() {
+            self.destroy(handle).await
+        }
+        self.emulation.terminate().await
+    }
+
+    pub async fn release_keys(&mut self, handle: EmulationHandle) -> Result<(), EmulationError> {
+        if let Some(keys) = self.pressed_keys.get_mut(&handle) {
+            let keys = keys.drain().collect::<Vec<_>>();
+            for key in keys {
+                let event = Event::Keyboard(KeyboardEvent::Key {
+                    time: 0,
+                    key,
+                    state: 0,
+                });
+                self.emulation.consume(event, handle).await?;
+                if let Ok(key) = input_event::scancode::Linux::try_from(key) {
+                    log::warn!("releasing stuck key: {key:?}");
+                }
+            }
+        }
+
+        let event = Event::Keyboard(KeyboardEvent::Modifiers {
+            depressed: 0,
+            latched: 0,
+            locked: 0,
+            group: 0,
+        });
+        self.emulation.consume(event, handle).await?;
+        Ok(())
+    }
+
+    pub fn has_pressed_keys(&self, handle: EmulationHandle) -> bool {
+        self.pressed_keys
+            .get(&handle)
+            .is_some_and(|p| !p.is_empty())
+    }
+
+    /// update the pressed_keys for the given handle
+    /// returns whether the event should be processed
+    fn update_pressed_keys(&mut self, handle: EmulationHandle, key: u32, state: u8) -> bool {
+        let Some(pressed_keys) = self.pressed_keys.get_mut(&handle) else {
+            return false;
+        };
+
+        if state == 0 {
+            // currently pressed => can release
+            pressed_keys.remove(&key)
+        } else {
+            // currently not pressed => can press
+            pressed_keys.insert(key)
+        }
+    }
+}
+
 #[async_trait]
-pub trait InputEmulation: Send {
+trait Emulation: Send {
    async fn consume(
        &mut self,
        event: Event,
@@ -77,64 +238,3 @@ pub trait InputEmulation: Send {
    async fn destroy(&mut self, handle: EmulationHandle);
    async fn terminate(&mut self);
 }
-
-pub async fn create_backend(
-    backend: Backend,
-) -> Result<Box<dyn InputEmulation>, EmulationCreationError> {
-    match backend {
-        #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-        Backend::Wlroots => Ok(Box::new(wlroots::WlrootsEmulation::new()?)),
-        #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-        Backend::Libei => Ok(Box::new(libei::LibeiEmulation::new().await?)),
-        #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-        Backend::X11 => Ok(Box::new(x11::X11Emulation::new()?)),
-        #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
-        Backend::Xdp => Ok(Box::new(
-            xdg_desktop_portal::DesktopPortalEmulation::new().await?,
-        )),
-        #[cfg(windows)]
-        Backend::Windows => Ok(Box::new(windows::WindowsEmulation::new()?)),
-        #[cfg(target_os = "macos")]
-        Backend::MacOs => Ok(Box::new(macos::MacOSEmulation::new()?)),
-        Backend::Dummy => Ok(Box::new(dummy::DummyEmulation::new())),
-    }
-}
-
-pub async fn create(
-    backend: Option<Backend>,
-) -> Result<Box<dyn InputEmulation>, EmulationCreationError> {
-    if let Some(backend) = backend {
-        let b = create_backend(backend).await;
-        if b.is_ok() {
-            log::info!("using emulation backend: {backend}");
-        }
-        return b;
-    }
-
-    for backend in [
-        #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-        Backend::Wlroots,
-        #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-        Backend::Libei,
-        #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
-        Backend::Xdp,
-        #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-        Backend::X11,
-        #[cfg(windows)]
-        Backend::Windows,
-        #[cfg(target_os = "macos")]
-        Backend::MacOs,
-        Backend::Dummy,
-    ] {
-        match create_backend(backend).await {
-            Ok(b) => {
-                log::info!("using emulation backend: {backend}");
-                return Ok(b);
-            }
-            Err(e) if e.cancelled_by_user() => return Err(e),
-            Err(e) => log::warn!("{e}"),
-        }
-    }
-
-    Err(EmulationCreationError::NoAvailableBackend)
-}
--- a/input-emulation/src/libei.rs
+++ b/input-emulation/src/libei.rs
@@ -15,7 +15,7 @@ use tokio::task::JoinHandle;
 use ashpd::{
    desktop::{
        remote_desktop::{DeviceType, RemoteDesktop},
-        Session,
+        PersistMode, Session,
    },
    WindowIdentifier,
 };
@@ -34,7 +34,7 @@ use input_event::{Event, KeyboardEvent, PointerEvent};

 use crate::error::{EmulationError, ReisConvertStreamError};

-use super::{error::LibeiEmulationCreationError, EmulationHandle, InputEmulation};
+use super::{error::LibeiEmulationCreationError, Emulation, EmulationHandle};

 static INTERFACES: Lazy<HashMap<&'static str, u32>> = Lazy::new(|| {
    let mut m = HashMap::new();
@@ -60,7 +60,7 @@ struct Devices {
    keyboard: Arc<RwLock<Option<(ei::Device, ei::Keyboard)>>>,
 }

-pub struct LibeiEmulation<'a> {
+pub(crate) struct LibeiEmulation<'a> {
    context: ei::Context,
    devices: Devices,
    ei_task: JoinHandle<()>,
@@ -68,10 +68,11 @@ pub struct LibeiEmulation<'a> {
    libei_error: Arc<AtomicBool>,
    serial: AtomicU32,
    _remote_desktop: RemoteDesktop<'a>,
-    session: Session<'a>,
+    session: Session<'a, RemoteDesktop<'a>>,
 }

-async fn get_ei_fd<'a>() -> Result<(RemoteDesktop<'a>, Session<'a>, OwnedFd), ashpd::Error> {
+async fn get_ei_fd<'a>(
+) -> Result<(RemoteDesktop<'a>, Session<'a, RemoteDesktop<'a>>, OwnedFd), ashpd::Error> {
    let remote_desktop = RemoteDesktop::new().await?;

    log::debug!("creating session ...");
@@ -79,7 +80,12 @@ async fn get_ei_fd<'a>() -> Result<(RemoteDesktop<'a>, Session<'a>, OwnedFd), as

    log::debug!("selecting devices ...");
    remote_desktop
-        .select_devices(&session, DeviceType::Keyboard | DeviceType::Pointer)
+        .select_devices(
+            &session,
+            DeviceType::Keyboard | DeviceType::Pointer,
+            None,
+            PersistMode::ExplicitlyRevoked,
+        )
        .await?;

    log::info!("requesting permission for input emulation");
@@ -93,7 +99,7 @@ async fn get_ei_fd<'a>() -> Result<(RemoteDesktop<'a>, Session<'a>, OwnedFd), as
 }

 impl<'a> LibeiEmulation<'a> {
-    pub async fn new() -> Result<Self, LibeiEmulationCreationError> {
+    pub(crate) async fn new() -> Result<Self, LibeiEmulationCreationError> {
        let (_remote_desktop, session, eifd) = get_ei_fd().await?;
        let stream = UnixStream::from(eifd);
        stream.set_nonblocking(true)?;
@@ -141,7 +147,7 @@ impl<'a> Drop for LibeiEmulation<'a> {
 }

 #[async_trait]
-impl<'a> InputEmulation for LibeiEmulation<'a> {
+impl<'a> Emulation for LibeiEmulation<'a> {
    async fn consume(
        &mut self,
        event: Event,
@@ -207,7 +213,6 @@ impl<'a> InputEmulation for LibeiEmulation<'a> {
                        d.frame(self.serial.load(Ordering::SeqCst), now);
                    }
                }
-                PointerEvent::Frame {} => {}
            },
            Event::Keyboard(k) => match k {
                KeyboardEvent::Key {
@@ -229,7 +234,6 @@ impl<'a> InputEmulation for LibeiEmulation<'a> {
                }
                KeyboardEvent::Modifiers { .. } => {}
            },
-            _ => {}
        }
        self.context
            .flush()
--- a/input-emulation/src/macos.rs
+++ b/input-emulation/src/macos.rs
@@ -1,4 +1,4 @@
-use super::{error::EmulationError, EmulationHandle, InputEmulation};
+use super::{error::EmulationError, Emulation, EmulationHandle};
 use async_trait::async_trait;
 use core_graphics::display::{CGDisplayBounds, CGMainDisplayID, CGPoint};
 use core_graphics::event::{
@@ -16,8 +16,8 @@ use super::error::MacOSEmulationCreationError;
 const DEFAULT_REPEAT_DELAY: Duration = Duration::from_millis(500);
 const DEFAULT_REPEAT_INTERVAL: Duration = Duration::from_millis(32);

-pub struct MacOSEmulation {
-    pub event_source: CGEventSource,
+pub(crate) struct MacOSEmulation {
+    event_source: CGEventSource,
    repeat_task: Option<AbortHandle>,
    button_state: ButtonState,
 }
@@ -53,7 +53,7 @@ impl IndexMut<CGMouseButton> for ButtonState {
 unsafe impl Send for MacOSEmulation {}

 impl MacOSEmulation {
-    pub fn new() -> Result<Self, MacOSEmulationCreationError> {
+    pub(crate) fn new() -> Result<Self, MacOSEmulationCreationError> {
        let event_source = CGEventSource::new(CGEventSourceStateID::CombinedSessionState)
            .map_err(|_| MacOSEmulationCreationError::EventSourceCreation)?;
        let button_state = ButtonState {
@@ -106,7 +106,7 @@ fn key_event(event_source: CGEventSource, key: u16, state: u8) {
 }

 #[async_trait]
-impl InputEmulation for MacOSEmulation {
+impl Emulation for MacOSEmulation {
    async fn consume(
        &mut self,
        event: Event,
@@ -262,7 +262,6 @@ impl InputEmulation for MacOSEmulation {
                    };
                    event.post(CGEventTapLocation::HID);
                }
-                PointerEvent::Frame { .. } => {}
            },
            Event::Keyboard(keyboard_event) => match keyboard_event {
                KeyboardEvent::Key {
@@ -286,7 +285,6 @@ impl InputEmulation for MacOSEmulation {
                }
                KeyboardEvent::Modifiers { .. } => {}
            },
-            _ => (),
        }
        // FIXME
        Ok(())
--- a/input-emulation/src/windows.rs
+++ b/input-emulation/src/windows.rs
@@ -19,23 +19,23 @@ use windows::Win32::UI::Input::KeyboardAndMouse::{
 };
 use windows::Win32::UI::WindowsAndMessaging::{XBUTTON1, XBUTTON2};

-use super::{EmulationHandle, InputEmulation};
+use super::{Emulation, EmulationHandle};

 const DEFAULT_REPEAT_DELAY: Duration = Duration::from_millis(500);
 const DEFAULT_REPEAT_INTERVAL: Duration = Duration::from_millis(32);

-pub struct WindowsEmulation {
+pub(crate) struct WindowsEmulation {
    repeat_task: Option<AbortHandle>,
 }

 impl WindowsEmulation {
-    pub fn new() -> Result<Self, WindowsEmulationCreationError> {
+    pub(crate) fn new() -> Result<Self, WindowsEmulationCreationError> {
        Ok(Self { repeat_task: None })
    }
 }

 #[async_trait]
-impl InputEmulation for WindowsEmulation {
+impl Emulation for WindowsEmulation {
    async fn consume(&mut self, event: Event, _: EmulationHandle) -> Result<(), EmulationError> {
        match event {
            Event::Pointer(pointer_event) => match pointer_event {
@@ -53,7 +53,6 @@ impl InputEmulation for WindowsEmulation {
                    value,
                } => scroll(axis, value as i32),
                PointerEvent::AxisDiscrete120 { axis, value } => scroll(axis, value),
-                PointerEvent::Frame {} => {}
            },
            Event::Keyboard(keyboard_event) => match keyboard_event {
                KeyboardEvent::Key {
@@ -71,7 +70,6 @@ impl InputEmulation for WindowsEmulation {
                }
                KeyboardEvent::Modifiers { .. } => {}
            },
-            _ => {}
        }
        // FIXME
        Ok(())
--- a/input-emulation/src/wlroots.rs
+++ b/input-emulation/src/wlroots.rs
@@ -1,6 +1,6 @@
 use crate::error::EmulationError;

-use super::{error::WlrootsEmulationCreationError, InputEmulation};
+use super::{error::WlrootsEmulationCreationError, Emulation};
 use async_trait::async_trait;
 use std::collections::HashMap;
 use std::io;
@@ -50,7 +50,7 @@ pub(crate) struct WlrootsEmulation {
 }

 impl WlrootsEmulation {
-    pub fn new() -> Result<Self, WlrootsEmulationCreationError> {
+    pub(crate) fn new() -> Result<Self, WlrootsEmulationCreationError> {
        let conn = Connection::connect_to_env()?;
        let (globals, queue) = registry_queue_init::<State>(&conn)?;
        let qh = queue.handle();
@@ -116,7 +116,7 @@ impl State {
 }

 #[async_trait]
-impl InputEmulation for WlrootsEmulation {
+impl Emulation for WlrootsEmulation {
    async fn consume(
        &mut self,
        event: Event,
@@ -200,7 +200,6 @@ impl VirtualInput {
                            .axis_discrete(0, axis, value as f64 / 6., value / 120);
                        self.pointer.frame();
                    }
-                    PointerEvent::Frame {} => self.pointer.frame(),
                }
                self.pointer.frame();
            }
@@ -209,16 +208,15 @@ impl VirtualInput {
                    self.keyboard.key(time, key, state as u32);
                }
                KeyboardEvent::Modifiers {
-                    mods_depressed,
-                    mods_latched,
-                    mods_locked,
+                    depressed: mods_depressed,
+                    latched: mods_latched,
+                    locked: mods_locked,
                    group,
                } => {
                    self.keyboard
                        .modifiers(mods_depressed, mods_latched, mods_locked, group);
                }
            },
-            _ => {}
        }
        Ok(())
    }
--- a/input-emulation/src/x11.rs
+++ b/input-emulation/src/x11.rs
@@ -11,16 +11,16 @@ use input_event::{

 use crate::error::EmulationError;

-use super::{error::X11EmulationCreationError, EmulationHandle, InputEmulation};
+use super::{error::X11EmulationCreationError, Emulation, EmulationHandle};

-pub struct X11Emulation {
+pub(crate) struct X11Emulation {
    display: *mut xlib::Display,
 }

 unsafe impl Send for X11Emulation {}

 impl X11Emulation {
-    pub fn new() -> Result<Self, X11EmulationCreationError> {
+    pub(crate) fn new() -> Result<Self, X11EmulationCreationError> {
        let display = unsafe {
            match xlib::XOpenDisplay(ptr::null()) {
                d if d == ptr::null::<xlib::Display>() as *mut xlib::Display => {
@@ -99,7 +99,7 @@ impl Drop for X11Emulation {
 }

 #[async_trait]
-impl InputEmulation for X11Emulation {
+impl Emulation for X11Emulation {
    async fn consume(&mut self, event: Event, _: EmulationHandle) -> Result<(), EmulationError> {
        match event {
            Event::Pointer(pointer_event) => match pointer_event {
@@ -123,7 +123,6 @@ impl InputEmulation for X11Emulation {
                PointerEvent::AxisDiscrete120 { axis, value } => {
                    self.emulate_scroll(axis, value as f64);
                }
-                PointerEvent::Frame {} => {}
            },
            Event::Keyboard(KeyboardEvent::Key {
                time: _,
--- a/input-emulation/src/xdg_desktop_portal.rs
+++ b/input-emulation/src/xdg_desktop_portal.rs
@@ -1,7 +1,7 @@
 use ashpd::{
    desktop::{
        remote_desktop::{Axis, DeviceType, KeyState, RemoteDesktop},
-        Session,
+        PersistMode, Session,
    },
    zbus::AsyncDrop,
    WindowIdentifier,
@@ -16,15 +16,15 @@ use input_event::{

 use crate::error::EmulationError;

-use super::{error::XdpEmulationCreationError, EmulationHandle, InputEmulation};
+use super::{error::XdpEmulationCreationError, Emulation, EmulationHandle};

-pub struct DesktopPortalEmulation<'a> {
+pub(crate) struct DesktopPortalEmulation<'a> {
    proxy: RemoteDesktop<'a>,
-    session: Session<'a>,
+    session: Session<'a, RemoteDesktop<'a>>,
 }

 impl<'a> DesktopPortalEmulation<'a> {
-    pub async fn new() -> Result<DesktopPortalEmulation<'a>, XdpEmulationCreationError> {
+    pub(crate) async fn new() -> Result<DesktopPortalEmulation<'a>, XdpEmulationCreationError> {
        log::debug!("connecting to org.freedesktop.portal.RemoteDesktop portal ...");
        let proxy = RemoteDesktop::new().await?;

@@ -34,7 +34,12 @@ impl<'a> DesktopPortalEmulation<'a> {

        log::debug!("selecting devices ...");
        proxy
-            .select_devices(&session, DeviceType::Keyboard | DeviceType::Pointer)
+            .select_devices(
+                &session,
+                DeviceType::Keyboard | DeviceType::Pointer,
+                None,
+                PersistMode::ExplicitlyRevoked,
+            )
            .await?;

        log::info!("requesting permission for input emulation");
@@ -51,7 +56,7 @@ impl<'a> DesktopPortalEmulation<'a> {
 }

 #[async_trait]
-impl<'a> InputEmulation for DesktopPortalEmulation<'a> {
+impl<'a> Emulation for DesktopPortalEmulation<'a> {
    async fn consume(
        &mut self,
        event: input_event::Event,
@@ -83,7 +88,7 @@ impl<'a> InputEmulation for DesktopPortalEmulation<'a> {
                        _ => Axis::Horizontal,
                    };
                    self.proxy
-                        .notify_pointer_axis_discrete(&self.session, axis, value)
+                        .notify_pointer_axis_discrete(&self.session, axis, value / 120)
                        .await?;
                }
                PointerEvent::Axis {
@@ -103,7 +108,6 @@ impl<'a> InputEmulation for DesktopPortalEmulation<'a> {
                        .notify_pointer_axis(&self.session, dx, dy, true)
                        .await?;
                }
-                PointerEvent::Frame {} => {}
            },
            Keyboard(k) => {
                match k {
@@ -125,7 +129,6 @@ impl<'a> InputEmulation for DesktopPortalEmulation<'a> {
                    }
                }
            }
-            _ => {}
        }
        Ok(())
    }
--- a/input-event/Cargo.toml
+++ b/input-event/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "input-event"
 description = "cross-platform input-event types for input-capture / input-emulation"
-version = "0.1.0"
+version = "0.2.1"
 edition = "2021"
 license = "GPL-3.0-or-later"
-repository = "https://github.com/ferdinandschober/lan-mouse"
+repository = "https://github.com/feschber/lan-mouse"

 [dependencies]
 futures-core = "0.3.30"
--- a/input-event/src/error.rs
+++ b/input-event/src/error.rs
@@ -1,17 +1 @@
-use std::array::TryFromSliceError;

-use thiserror::Error;
-
-#[derive(Debug, Error)]
-pub enum ProtocolError {
-    #[error(transparent)]
-    MissingData(#[from] TryFromSliceError),
-    #[error("invalid event id: `{0}`")]
-    InvalidEventId(u8),
-    #[error("invalid pointer event type: `{0}`")]
-    InvalidPointerEventId(u8),
-    #[error("invalid keyboard event type: `{0}`")]
-    InvalidKeyboardEventId(u8),
-    #[error("expected data at idx `{0:?}`")]
-    Data(String),
-}
--- a/input-event/src/lib.rs
+++ b/input-event/src/lib.rs
@@ -1,8 +1,6 @@
-pub use error::ProtocolError;
 use std::fmt::{self, Display};

 pub mod error;
-pub mod proto;
 pub mod scancode;

 #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
@@ -25,8 +23,6 @@ pub enum PointerEvent {
    Axis { time: u32, axis: u8, value: f64 },
    /// discrete axis event, scroll event for mice - 120 = one scroll tick
    AxisDiscrete120 { axis: u8, value: i32 },
-    /// frame event
-    Frame {},
 }

 #[derive(Debug, PartialEq, Clone, Copy)]
@@ -35,9 +31,9 @@ pub enum KeyboardEvent {
    Key { time: u32, key: u32, state: u8 },
    /// modifiers changed state
    Modifiers {
-        mods_depressed: u32,
-        mods_latched: u32,
-        mods_locked: u32,
+        depressed: u32,
+        latched: u32,
+        locked: u32,
        group: u32,
    },
 }
@@ -48,23 +44,6 @@ pub enum Event {
    Pointer(PointerEvent),
    /// keyboard events (key / modifiers)
    Keyboard(KeyboardEvent),
-    /// enter event: request to enter a client.
-    /// The client must release the pointer if it is grabbed
-    /// and reply with a leave event, as soon as its ready to
-    /// receive events
-    Enter(),
-    /// leave event: this client is now ready to receive events and will
-    /// not send any events after until it sends an enter event
-    Leave(),
-    /// ping a client, to see if it is still alive. A client that does
-    /// not respond with a pong event will be assumed to be offline.
-    Ping(),
-    /// response to a ping event: this event signals that a client
-    /// is still alive but must otherwise be ignored
-    Pong(),
-    /// explicit disconnect request. The client will no longer
-    /// send events until the next Enter event. All of its keys should be released.
-    Disconnect(),
 }

 impl Display for PointerEvent {
@@ -98,7 +77,6 @@ impl Display for PointerEvent {
            PointerEvent::AxisDiscrete120 { axis, value } => {
                write!(f, "scroll-120 ({axis}, {value})")
            }
-            PointerEvent::Frame {} => write!(f, "frame()"),
        }
    }
 }
@@ -119,9 +97,9 @@ impl Display for KeyboardEvent {
                }
            }
            KeyboardEvent::Modifiers {
-                mods_depressed,
-                mods_latched,
-                mods_locked,
+                depressed: mods_depressed,
+                latched: mods_latched,
+                locked: mods_locked,
                group,
            } => write!(
                f,
@@ -136,11 +114,6 @@ impl Display for Event {
        match self {
            Event::Pointer(p) => write!(f, "{}", p),
            Event::Keyboard(k) => write!(f, "{}", k),
-            Event::Enter() => write!(f, "enter"),
-            Event::Leave() => write!(f, "leave"),
-            Event::Ping() => write!(f, "ping"),
-            Event::Pong() => write!(f, "pong"),
-            Event::Disconnect() => write!(f, "disconnect"),
        }
    }
 }
--- a/input-event/src/libei.rs
+++ b/input-event/src/libei.rs
@@ -57,9 +57,9 @@ fn to_input_events(ei_event: EiEvent) -> Events {
    match ei_event {
        EiEvent::KeyboardModifiers(mods) => {
            let modifier_event = KeyboardEvent::Modifiers {
-                mods_depressed: mods.depressed,
-                mods_latched: mods.latched,
-                mods_locked: mods.locked,
+                depressed: mods.depressed,
+                latched: mods.latched,
+                locked: mods.locked,
                group: mods.group,
            };
            Events::One(Event::Keyboard(modifier_event))
--- a/input-event/src/proto.rs
+++ b/input-event/src/proto.rs
@@ -1,307 +0,0 @@
-use std::{fmt::Debug, slice::SliceIndex};
-
-use crate::ProtocolError;
-
-use super::{Event, KeyboardEvent, PointerEvent};
-
-enum PointerEventType {
-    Motion,
-    Button,
-    Axis,
-    AxisDiscrete120,
-    Frame,
-}
-
-enum KeyboardEventType {
-    Key,
-    Modifiers,
-}
-
-enum EventType {
-    Pointer,
-    Keyboard,
-    Enter,
-    Leave,
-    Ping,
-    Pong,
-    Disconnect,
-}
-
-impl Event {
-    fn event_type(&self) -> EventType {
-        match self {
-            Self::Pointer(_) => EventType::Pointer,
-            Self::Keyboard(_) => EventType::Keyboard,
-            Self::Enter() => EventType::Enter,
-            Self::Leave() => EventType::Leave,
-            Self::Ping() => EventType::Ping,
-            Self::Pong() => EventType::Pong,
-            Self::Disconnect() => EventType::Disconnect,
-        }
-    }
-}
-
-impl PointerEvent {
-    fn event_type(&self) -> PointerEventType {
-        match self {
-            Self::Motion { .. } => PointerEventType::Motion,
-            Self::Button { .. } => PointerEventType::Button,
-            Self::Axis { .. } => PointerEventType::Axis,
-            Self::AxisDiscrete120 { .. } => PointerEventType::AxisDiscrete120,
-            Self::Frame { .. } => PointerEventType::Frame,
-        }
-    }
-}
-
-impl KeyboardEvent {
-    fn event_type(&self) -> KeyboardEventType {
-        match self {
-            KeyboardEvent::Key { .. } => KeyboardEventType::Key,
-            KeyboardEvent::Modifiers { .. } => KeyboardEventType::Modifiers,
-        }
-    }
-}
-
-impl TryFrom<u8> for PointerEventType {
-    type Error = ProtocolError;
-
-    fn try_from(value: u8) -> Result<Self, ProtocolError> {
-        match value {
-            x if x == Self::Motion as u8 => Ok(Self::Motion),
-            x if x == Self::Button as u8 => Ok(Self::Button),
-            x if x == Self::Axis as u8 => Ok(Self::Axis),
-            x if x == Self::AxisDiscrete120 as u8 => Ok(Self::AxisDiscrete120),
-            x if x == Self::Frame as u8 => Ok(Self::Frame),
-            _ => Err(ProtocolError::InvalidPointerEventId(value)),
-        }
-    }
-}
-
-impl TryFrom<u8> for KeyboardEventType {
-    type Error = ProtocolError;
-
-    fn try_from(value: u8) -> Result<Self, ProtocolError> {
-        match value {
-            x if x == Self::Key as u8 => Ok(Self::Key),
-            x if x == Self::Modifiers as u8 => Ok(Self::Modifiers),
-            _ => Err(ProtocolError::InvalidKeyboardEventId(value)),
-        }
-    }
-}
-
-impl From<&Event> for Vec<u8> {
-    fn from(event: &Event) -> Self {
-        let event_id = vec![event.event_type() as u8];
-        let event_data = match event {
-            Event::Pointer(p) => p.into(),
-            Event::Keyboard(k) => k.into(),
-            Event::Enter() => vec![],
-            Event::Leave() => vec![],
-            Event::Ping() => vec![],
-            Event::Pong() => vec![],
-            Event::Disconnect() => vec![],
-        };
-        [event_id, event_data].concat()
-    }
-}
-
-impl TryFrom<Vec<u8>> for Event {
-    type Error = ProtocolError;
-
-    fn try_from(value: Vec<u8>) -> Result<Self, ProtocolError> {
-        let event_id = u8::from_be_bytes(value[..1].try_into()?);
-        match event_id {
-            i if i == (EventType::Pointer as u8) => Ok(Event::Pointer(value.try_into()?)),
-            i if i == (EventType::Keyboard as u8) => Ok(Event::Keyboard(value.try_into()?)),
-            i if i == (EventType::Enter as u8) => Ok(Event::Enter()),
-            i if i == (EventType::Leave as u8) => Ok(Event::Leave()),
-            i if i == (EventType::Ping as u8) => Ok(Event::Ping()),
-            i if i == (EventType::Pong as u8) => Ok(Event::Pong()),
-            i if i == (EventType::Disconnect as u8) => Ok(Event::Disconnect()),
-            _ => Err(ProtocolError::InvalidEventId(event_id)),
-        }
-    }
-}
-
-impl From<&PointerEvent> for Vec<u8> {
-    fn from(event: &PointerEvent) -> Self {
-        let id = vec![event.event_type() as u8];
-        let data = match event {
-            PointerEvent::Motion { time, dx, dy } => {
-                let time = time.to_be_bytes();
-                let dx = dx.to_be_bytes();
-                let dy = dy.to_be_bytes();
-                [&time[..], &dx[..], &dy[..]].concat()
-            }
-            PointerEvent::Button {
-                time,
-                button,
-                state,
-            } => {
-                let time = time.to_be_bytes();
-                let button = button.to_be_bytes();
-                let state = state.to_be_bytes();
-                [&time[..], &button[..], &state[..]].concat()
-            }
-            PointerEvent::Axis { time, axis, value } => {
-                let time = time.to_be_bytes();
-                let axis = axis.to_be_bytes();
-                let value = value.to_be_bytes();
-                [&time[..], &axis[..], &value[..]].concat()
-            }
-            PointerEvent::AxisDiscrete120 { axis, value } => {
-                let axis = axis.to_be_bytes();
-                let value = value.to_be_bytes();
-                [&axis[..], &value[..]].concat()
-            }
-            PointerEvent::Frame {} => {
-                vec![]
-            }
-        };
-        [id, data].concat()
-    }
-}
-
-fn decode_u8<I>(data: &[u8], idx: I) -> Result<u8, ProtocolError>
-where
-    I: SliceIndex<[u8], Output = [u8]> + Debug + Clone,
-{
-    let data = data
-        .get(idx.clone())
-        .ok_or(ProtocolError::Data(format!("{:?}", idx)))?;
-    Ok(u8::from_be_bytes(data.try_into()?))
-}
-
-fn decode_u32<I>(data: &[u8], idx: I) -> Result<u32, ProtocolError>
-where
-    I: SliceIndex<[u8], Output = [u8]> + Debug + Clone,
-{
-    let data = data
-        .get(idx.clone())
-        .ok_or(ProtocolError::Data(format!("{:?}", idx)))?;
-    Ok(u32::from_be_bytes(data.try_into()?))
-}
-
-fn decode_i32<I>(data: &[u8], idx: I) -> Result<i32, ProtocolError>
-where
-    I: SliceIndex<[u8], Output = [u8]> + Debug + Clone,
-{
-    let data = data
-        .get(idx.clone())
-        .ok_or(ProtocolError::Data(format!("{:?}", idx)))?;
-    Ok(i32::from_be_bytes(data.try_into()?))
-}
-fn decode_f64<I>(data: &[u8], idx: I) -> Result<f64, ProtocolError>
-where
-    I: SliceIndex<[u8], Output = [u8]> + Debug + Clone,
-{
-    let data = data
-        .get(idx.clone())
-        .ok_or(ProtocolError::Data(format!("{:?}", idx)))?;
-    Ok(f64::from_be_bytes(data.try_into()?))
-}
-
-impl TryFrom<Vec<u8>> for PointerEvent {
-    type Error = ProtocolError;
-
-    fn try_from(data: Vec<u8>) -> Result<Self, ProtocolError> {
-        match data.get(1) {
-            Some(id) => match id.to_owned().try_into()? {
-                PointerEventType::Motion => {
-                    let time = decode_u32(&data, 2..6)?;
-                    let dx = decode_f64(&data, 6..14)?;
-                    let dy = decode_f64(&data, 14..22)?;
-
-                    Ok(Self::Motion { time, dx, dy })
-                }
-                PointerEventType::Button => {
-                    let time = decode_u32(&data, 2..6)?;
-                    let button = decode_u32(&data, 6..10)?;
-                    let state = decode_u32(&data, 10..14)?;
-
-                    Ok(Self::Button {
-                        time,
-                        button,
-                        state,
-                    })
-                }
-                PointerEventType::Axis => {
-                    let time = decode_u32(&data, 2..6)?;
-                    let axis = decode_u8(&data, 6..7)?;
-                    let value = decode_f64(&data, 7..15)?;
-                    Ok(Self::Axis { time, axis, value })
-                }
-                PointerEventType::AxisDiscrete120 => {
-                    let axis = decode_u8(&data, 2..3)?;
-                    let value = decode_i32(&data, 3..7)?;
-                    Ok(Self::AxisDiscrete120 { axis, value })
-                }
-                PointerEventType::Frame => Ok(Self::Frame {}),
-            },
-            None => Err(ProtocolError::Data("0".to_string())),
-        }
-    }
-}
-
-impl From<&KeyboardEvent> for Vec<u8> {
-    fn from(event: &KeyboardEvent) -> Self {
-        let id = vec![event.event_type() as u8];
-        let data = match event {
-            KeyboardEvent::Key { time, key, state } => {
-                let time = time.to_be_bytes();
-                let key = key.to_be_bytes();
-                let state = state.to_be_bytes();
-                [&time[..], &key[..], &state[..]].concat()
-            }
-            KeyboardEvent::Modifiers {
-                mods_depressed,
-                mods_latched,
-                mods_locked,
-                group,
-            } => {
-                let mods_depressed = mods_depressed.to_be_bytes();
-                let mods_latched = mods_latched.to_be_bytes();
-                let mods_locked = mods_locked.to_be_bytes();
-                let group = group.to_be_bytes();
-                [
-                    &mods_depressed[..],
-                    &mods_latched[..],
-                    &mods_locked[..],
-                    &group[..],
-                ]
-                .concat()
-            }
-        };
-        [id, data].concat()
-    }
-}
-
-impl TryFrom<Vec<u8>> for KeyboardEvent {
-    type Error = ProtocolError;
-
-    fn try_from(data: Vec<u8>) -> Result<Self, ProtocolError> {
-        match data.get(1) {
-            Some(id) => match id.to_owned().try_into()? {
-                KeyboardEventType::Key => {
-                    let time = decode_u32(&data, 2..6)?;
-                    let key = decode_u32(&data, 6..10)?;
-                    let state = decode_u8(&data, 10..11)?;
-                    Ok(KeyboardEvent::Key { time, key, state })
-                }
-                KeyboardEventType::Modifiers => {
-                    let mods_depressed = decode_u32(&data, 2..6)?;
-                    let mods_latched = decode_u32(&data, 6..10)?;
-                    let mods_locked = decode_u32(&data, 10..14)?;
-                    let group = decode_u32(&data, 14..18)?;
-                    Ok(KeyboardEvent::Modifiers {
-                        mods_depressed,
-                        mods_latched,
-                        mods_locked,
-                        group,
-                    })
-                }
-            },
-            None => Err(ProtocolError::Data("0".to_string())),
-        }
-    }
-}
--- a/lan-mouse-proto/Cargo.toml
+++ b/lan-mouse-proto/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "lan-mouse-proto"
+description = "network protocol for lan-mouse"
+version = "0.1.0"
+edition = "2021"
+license = "GPL-3.0-or-later"
+repository = "https://github.com/feschber/lan-mouse"
+
+[dependencies]
+num_enum = "0.7.2"
+thiserror = "1.0.61"
+input-event = { path = "../input-event", version = "0.2.1" }
+paste = "1.0"
--- a/lan-mouse-proto/src/lib.rs
+++ b/lan-mouse-proto/src/lib.rs
@@ -0,0 +1,251 @@
+use input_event::{Event as InputEvent, KeyboardEvent, PointerEvent};
+use num_enum::{IntoPrimitive, TryFromPrimitive, TryFromPrimitiveError};
+use paste::paste;
+use std::{
+    fmt::{Debug, Display},
+    mem::size_of,
+};
+use thiserror::Error;
+
+/// defines the maximum size an encoded event can take up
+/// this is currently the pointer motion event
+/// type: u8, time: u32, dx: f64, dy: f64
+pub const MAX_EVENT_SIZE: usize = size_of::<u8>() + size_of::<u32>() + 2 * size_of::<f64>();
+
+/// error type for protocol violations
+#[derive(Debug, Error)]
+pub enum ProtocolError {
+    /// event type does not exist
+    #[error("invalid event id: `{0}`")]
+    InvalidEventId(#[from] TryFromPrimitiveError<EventType>),
+}
+
+/// main lan-mouse protocol event type
+#[derive(Clone, Copy, Debug)]
+pub enum ProtoEvent {
+    /// notify a client that the cursor entered its region
+    /// [`ProtoEvent::Ack`] with the same serial is used for synchronization between devices
+    Enter(u32),
+    /// notify a client that the cursor left its region
+    /// [`ProtoEvent::Ack`] with the same serial is used for synchronization between devices
+    Leave(u32),
+    /// acknowledge of an [`ProtoEvent::Enter`] or [`ProtoEvent::Leave`] event
+    Ack(u32),
+    /// Input event
+    Input(InputEvent),
+    /// Ping event for tracking unresponsive clients.
+    /// A client has to respond with [`ProtoEvent::Pong`].
+    Ping,
+    /// Response to [`ProtoEvent::Ping`]
+    Pong,
+}
+
+impl Display for ProtoEvent {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            ProtoEvent::Enter(s) => write!(f, "Enter({s})"),
+            ProtoEvent::Leave(s) => write!(f, "Leave({s})"),
+            ProtoEvent::Ack(s) => write!(f, "Ack({s})"),
+            ProtoEvent::Input(e) => write!(f, "{e}"),
+            ProtoEvent::Ping => write!(f, "ping"),
+            ProtoEvent::Pong => write!(f, "pong"),
+        }
+    }
+}
+
+#[derive(TryFromPrimitive, IntoPrimitive)]
+#[repr(u8)]
+pub enum EventType {
+    PointerMotion,
+    PointerButton,
+    PointerAxis,
+    PointerAxisValue120,
+    KeyboardKey,
+    KeyboardModifiers,
+    Ping,
+    Pong,
+    Enter,
+    Leave,
+    Ack,
+}
+
+impl ProtoEvent {
+    fn event_type(&self) -> EventType {
+        match self {
+            ProtoEvent::Input(e) => match e {
+                InputEvent::Pointer(p) => match p {
+                    PointerEvent::Motion { .. } => EventType::PointerMotion,
+                    PointerEvent::Button { .. } => EventType::PointerButton,
+                    PointerEvent::Axis { .. } => EventType::PointerAxis,
+                    PointerEvent::AxisDiscrete120 { .. } => EventType::PointerAxisValue120,
+                },
+                InputEvent::Keyboard(k) => match k {
+                    KeyboardEvent::Key { .. } => EventType::KeyboardKey,
+                    KeyboardEvent::Modifiers { .. } => EventType::KeyboardModifiers,
+                },
+            },
+            ProtoEvent::Ping => EventType::Ping,
+            ProtoEvent::Pong => EventType::Pong,
+            ProtoEvent::Enter(_) => EventType::Enter,
+            ProtoEvent::Leave(_) => EventType::Leave,
+            ProtoEvent::Ack(_) => EventType::Ack,
+        }
+    }
+}
+
+impl TryFrom<[u8; MAX_EVENT_SIZE]> for ProtoEvent {
+    type Error = ProtocolError;
+
+    fn try_from(buf: [u8; MAX_EVENT_SIZE]) -> Result<Self, Self::Error> {
+        let mut buf = &buf[..];
+        let event_type = decode_u8(&mut buf)?;
+        match EventType::try_from(event_type)? {
+            EventType::PointerMotion => {
+                Ok(Self::Input(InputEvent::Pointer(PointerEvent::Motion {
+                    time: decode_u32(&mut buf)?,
+                    dx: decode_f64(&mut buf)?,
+                    dy: decode_f64(&mut buf)?,
+                })))
+            }
+            EventType::PointerButton => {
+                Ok(Self::Input(InputEvent::Pointer(PointerEvent::Button {
+                    time: decode_u32(&mut buf)?,
+                    button: decode_u32(&mut buf)?,
+                    state: decode_u32(&mut buf)?,
+                })))
+            }
+            EventType::PointerAxis => Ok(Self::Input(InputEvent::Pointer(PointerEvent::Axis {
+                time: decode_u32(&mut buf)?,
+                axis: decode_u8(&mut buf)?,
+                value: decode_f64(&mut buf)?,
+            }))),
+            EventType::PointerAxisValue120 => Ok(Self::Input(InputEvent::Pointer(
+                PointerEvent::AxisDiscrete120 {
+                    axis: decode_u8(&mut buf)?,
+                    value: decode_i32(&mut buf)?,
+                },
+            ))),
+            EventType::KeyboardKey => Ok(Self::Input(InputEvent::Keyboard(KeyboardEvent::Key {
+                time: decode_u32(&mut buf)?,
+                key: decode_u32(&mut buf)?,
+                state: decode_u8(&mut buf)?,
+            }))),
+            EventType::KeyboardModifiers => Ok(Self::Input(InputEvent::Keyboard(
+                KeyboardEvent::Modifiers {
+                    depressed: decode_u32(&mut buf)?,
+                    latched: decode_u32(&mut buf)?,
+                    locked: decode_u32(&mut buf)?,
+                    group: decode_u32(&mut buf)?,
+                },
+            ))),
+            EventType::Ping => Ok(Self::Ping),
+            EventType::Pong => Ok(Self::Pong),
+            EventType::Enter => Ok(Self::Enter(decode_u32(&mut buf)?)),
+            EventType::Leave => Ok(Self::Leave(decode_u32(&mut buf)?)),
+            EventType::Ack => Ok(Self::Ack(decode_u32(&mut buf)?)),
+        }
+    }
+}
+
+impl From<ProtoEvent> for ([u8; MAX_EVENT_SIZE], usize) {
+    fn from(event: ProtoEvent) -> Self {
+        let mut buf = [0u8; MAX_EVENT_SIZE];
+        let mut len = 0usize;
+        {
+            let mut buf = &mut buf[..];
+            let buf = &mut buf;
+            let len = &mut len;
+            encode_u8(buf, len, event.event_type() as u8);
+            match event {
+                ProtoEvent::Input(event) => match event {
+                    InputEvent::Pointer(p) => match p {
+                        PointerEvent::Motion { time, dx, dy } => {
+                            encode_u32(buf, len, time);
+                            encode_f64(buf, len, dx);
+                            encode_f64(buf, len, dy);
+                        }
+                        PointerEvent::Button {
+                            time,
+                            button,
+                            state,
+                        } => {
+                            encode_u32(buf, len, time);
+                            encode_u32(buf, len, button);
+                            encode_u32(buf, len, state);
+                        }
+                        PointerEvent::Axis { time, axis, value } => {
+                            encode_u32(buf, len, time);
+                            encode_u8(buf, len, axis);
+                            encode_f64(buf, len, value);
+                        }
+                        PointerEvent::AxisDiscrete120 { axis, value } => {
+                            encode_u8(buf, len, axis);
+                            encode_i32(buf, len, value);
+                        }
+                    },
+                    InputEvent::Keyboard(k) => match k {
+                        KeyboardEvent::Key { time, key, state } => {
+                            encode_u32(buf, len, time);
+                            encode_u32(buf, len, key);
+                            encode_u8(buf, len, state);
+                        }
+                        KeyboardEvent::Modifiers {
+                            depressed,
+                            latched,
+                            locked,
+                            group,
+                        } => {
+                            encode_u32(buf, len, depressed);
+                            encode_u32(buf, len, latched);
+                            encode_u32(buf, len, locked);
+                            encode_u32(buf, len, group);
+                        }
+                    },
+                },
+                ProtoEvent::Ping => {}
+                ProtoEvent::Pong => {}
+                ProtoEvent::Enter(serial) => encode_u32(buf, len, serial),
+                ProtoEvent::Leave(serial) => encode_u32(buf, len, serial),
+                ProtoEvent::Ack(serial) => encode_u32(buf, len, serial),
+            }
+        }
+        (buf, len)
+    }
+}
+
+macro_rules! decode_impl {
+    ($t:ty) => {
+        paste! {
+            fn [<decode_ $t>](data: &mut &[u8]) -> Result<$t, ProtocolError> {
+                let (int_bytes, rest) = data.split_at(size_of::<$t>());
+                *data = rest;
+                Ok($t::from_be_bytes(int_bytes.try_into().unwrap()))
+            }
+        }
+    };
+}
+
+decode_impl!(u8);
+decode_impl!(u32);
+decode_impl!(i32);
+decode_impl!(f64);
+
+macro_rules! encode_impl {
+    ($t:ty) => {
+        paste! {
+            fn [<encode_ $t>](buf: &mut &mut [u8], amt: &mut usize, n: $t) {
+                let src = n.to_be_bytes();
+                let data = std::mem::take(buf);
+                let (int_bytes, rest) = data.split_at_mut(size_of::<$t>());
+                int_bytes.copy_from_slice(&src);
+                *amt += size_of::<$t>();
+                *buf = rest
+            }
+        }
+    };
+}
+
+encode_impl!(u8);
+encode_impl!(u32);
+encode_impl!(i32);
+encode_impl!(f64);
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -14,6 +14,7 @@ rustPlatform.buildRustPackage {
  nativeBuildInputs = with pkgs; [
    pkg-config
    cmake
+    makeWrapper
    buildPackages.gtk4
  ];

@@ -36,6 +37,12 @@ rustPlatform.buildRustPackage {
  # Set Environment Variables
  RUST_BACKTRACE = "full";

+  # Needed to enable support for SVG icons in GTK
+  postInstall = ''
+    wrapProgram "$out/bin/lan-mouse" \
+      --set GDK_PIXBUF_MODULE_FILE ${pkgs.librsvg.out}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+  '';
+
  meta = with lib; {
    description = "Lan Mouse is a mouse and keyboard sharing software";
    longDescription = ''
--- a/src/capture_test.rs
+++ b/src/capture_test.rs
@@ -1,6 +1,6 @@
 use crate::config::Config;
 use futures::StreamExt;
-use input_capture::{self, CaptureError, InputCapture, InputCaptureError, Position};
+use input_capture::{self, CaptureError, CaptureEvent, InputCapture, InputCaptureError, Position};
 use input_event::{Event, KeyboardEvent};
 use tokio::task::LocalSet;

@@ -20,7 +20,7 @@ async fn input_capture_test(config: Config) -> Result<(), InputCaptureError> {
    log::info!("creating input capture");
    let backend = config.capture_backend.map(|b| b.into());
    loop {
-        let mut input_capture = input_capture::create(backend).await?;
+        let mut input_capture = InputCapture::new(backend).await?;
        log::info!("creating clients");
        input_capture.create(0, Position::Left).await?;
        input_capture.create(1, Position::Right).await?;
@@ -33,7 +33,7 @@ async fn input_capture_test(config: Config) -> Result<(), InputCaptureError> {
    }
 }

-async fn do_capture(input_capture: &mut Box<dyn InputCapture>) -> Result<(), CaptureError> {
+async fn do_capture(input_capture: &mut InputCapture) -> Result<(), CaptureError> {
    loop {
        let (client, event) = input_capture
            .next()
@@ -46,7 +46,7 @@ async fn do_capture(input_capture: &mut Box<dyn InputCapture>) -> Result<(), Cap
            _ => Position::Bottom,
        };
        log::info!("position: {pos}, event: {event}");
-        if let Event::Keyboard(KeyboardEvent::Key { key: 1, .. }) = event {
+        if let CaptureEvent::Input(Event::Keyboard(KeyboardEvent::Key { key: 1, .. })) = event {
            input_capture.release().await?;
            break Ok(());
        }
--- a/src/client.rs
+++ b/src/client.rs
@@ -125,8 +125,8 @@ pub struct ClientState {
    /// e.g. Laptops usually have at least an ethernet and a wifi port
    /// which have different ip addresses
    pub ips: HashSet<IpAddr>,
-    /// keys currently pressed by this client
-    pub pressed_keys: HashSet<u32>,
+    /// client has pressed keys
+    pub has_pressed_keys: bool,
    /// dns resolving in progress
    pub resolving: bool,
 }
--- a/src/emulation_test.rs
+++ b/src/emulation_test.rs
@@ -1,5 +1,6 @@
 use crate::config::Config;
 use anyhow::Result;
+use input_emulation::InputEmulation;
 use input_event::{Event, PointerEvent};
 use std::f64::consts::PI;
 use std::time::{Duration, Instant};
@@ -22,7 +23,7 @@ const RADIUS: f64 = 100.0;

 async fn input_emulation_test(config: Config) -> Result<()> {
    let backend = config.emulation_backend.map(|b| b.into());
-    let mut emulation = input_emulation::create(backend).await?;
+    let mut emulation = InputEmulation::new(backend).await?;
    emulation.create(0).await;
    let start = Instant::now();
    let mut offset = (0, 0);
--- a/src/frontend/gtk.rs
+++ b/src/frontend/gtk.rs
@@ -114,50 +114,54 @@ fn build_ui(app: &Application) {

    let window = Window::new(app, tx);

-    glib::spawn_future_local(clone!(@weak window => async move {
-        loop {
-            let notify = receiver.recv().await.unwrap_or_else(|_| process::exit(1));
-            match notify {
-                FrontendEvent::Created(handle, client, state) => {
-                    window.new_client(handle, client, state);
-                },
-                FrontendEvent::Deleted(client) => {
-                    window.delete_client(client);
-                }
-                FrontendEvent::State(handle, config, state) => {
-                    window.update_client_config(handle, config);
-                    window.update_client_state(handle, state);
-                }
-                FrontendEvent::NoSuchClient(_) => { }
-                FrontendEvent::Error(e) => {
-                    window.show_toast(e.as_str());
-                },
-                FrontendEvent::Enumerate(clients) => {
-                    for (handle, client, state) in clients {
-                        if window.client_idx(handle).is_some() {
-                            window.update_client_config(handle, client);
-                            window.update_client_state(handle, state);
-                        } else {
-                            window.new_client(handle, client, state);
+    glib::spawn_future_local(clone!(
+        #[weak]
+        window,
+        async move {
+            loop {
+                let notify = receiver.recv().await.unwrap_or_else(|_| process::exit(1));
+                match notify {
+                    FrontendEvent::Created(handle, client, state) => {
+                        window.new_client(handle, client, state);
+                    }
+                    FrontendEvent::Deleted(client) => {
+                        window.delete_client(client);
+                    }
+                    FrontendEvent::State(handle, config, state) => {
+                        window.update_client_config(handle, config);
+                        window.update_client_state(handle, state);
+                    }
+                    FrontendEvent::NoSuchClient(_) => {}
+                    FrontendEvent::Error(e) => {
+                        window.show_toast(e.as_str());
+                    }
+                    FrontendEvent::Enumerate(clients) => {
+                        for (handle, client, state) in clients {
+                            if window.client_idx(handle).is_some() {
+                                window.update_client_config(handle, client);
+                                window.update_client_state(handle, state);
+                            } else {
+                                window.new_client(handle, client, state);
+                            }
                        }
                    }
-                },
-                FrontendEvent::PortChanged(port, msg) => {
-                    match msg {
-                        None => window.show_toast(format!("port changed: {port}").as_str()),
-                        Some(msg) => window.show_toast(msg.as_str()),
+                    FrontendEvent::PortChanged(port, msg) => {
+                        match msg {
+                            None => window.show_toast(format!("port changed: {port}").as_str()),
+                            Some(msg) => window.show_toast(msg.as_str()),
+                        }
+                        window.imp().set_port(port);
+                    }
+                    FrontendEvent::CaptureStatus(s) => {
+                        window.set_capture(s.into());
+                    }
+                    FrontendEvent::EmulationStatus(s) => {
+                        window.set_emulation(s.into());
                    }
-                    window.imp().set_port(port);
-                }
-                FrontendEvent::CaptureStatus(s) => {
-                    window.set_capture(s.into());
-                }
-                FrontendEvent::EmulationStatus(s) => {
-                    window.set_emulation(s.into());
                }
            }
        }
-    }));
+    ));

    window.present();
 }
--- a/src/frontend/gtk/client_row/imp.rs
+++ b/src/frontend/gtk/client_row/imp.rs
@@ -52,10 +52,13 @@ impl ObjectSubclass for ClientRow {
 impl ObjectImpl for ClientRow {
    fn constructed(&self) {
        self.parent_constructed();
-        self.delete_button
-            .connect_clicked(clone!(@weak self as row => move |button| {
+        self.delete_button.connect_clicked(clone!(
+            #[weak(rename_to = row)]
+            self,
+            move |button| {
                row.handle_client_delete(button);
-            }));
+            }
+        ));
    }

    fn signals() -> &'static [glib::subclass::Signal] {
--- a/src/frontend/gtk/window.rs
+++ b/src/frontend/gtk/window.rs
@@ -63,31 +63,61 @@ impl Window {
        let selection_model = NoSelection::new(Some(self.clients()));
        self.imp().client_list.bind_model(
            Some(&selection_model),
-            clone!(@weak self as window => @default-panic, move |obj| {
-                let client_object = obj.downcast_ref().expect("Expected object of type `ClientObject`.");
-                let row = window.create_client_row(client_object);
-                row.connect_closure("request-update", false, closure_local!(@strong window => move |row: ClientRow, active: bool| {
-                    if let Some(client) = window.client_by_idx(row.index() as u32) {
-                        window.request_client_activate(&client, active);
-                        window.request_client_update(&client);
-                        window.request_client_state(&client);
-                    }
-                }));
-                row.connect_closure("request-delete", false, closure_local!(@strong window => move |row: ClientRow| {
-                    if let Some(client) = window.client_by_idx(row.index() as u32) {
-                        window.request_client_delete(&client);
-                    }
-                }));
-                row.connect_closure("request-dns", false, closure_local!(@strong window => move
-                |row: ClientRow| {
-                    if let Some(client) = window.client_by_idx(row.index() as u32) {
-                        window.request_client_update(&client);
-                        window.request_dns(&client);
-                        window.request_client_state(&client);
-                    }
-                }));
-                row.upcast()
-            })
+            clone!(
+                #[weak(rename_to = window)]
+                self,
+                #[upgrade_or_panic]
+                move |obj| {
+                    let client_object = obj
+                        .downcast_ref()
+                        .expect("Expected object of type `ClientObject`.");
+                    let row = window.create_client_row(client_object);
+                    row.connect_closure(
+                        "request-update",
+                        false,
+                        closure_local!(
+                            #[strong]
+                            window,
+                            move |row: ClientRow, active: bool| {
+                                if let Some(client) = window.client_by_idx(row.index() as u32) {
+                                    window.request_client_activate(&client, active);
+                                    window.request_client_update(&client);
+                                    window.request_client_state(&client);
+                                }
+                            }
+                        ),
+                    );
+                    row.connect_closure(
+                        "request-delete",
+                        false,
+                        closure_local!(
+                            #[strong]
+                            window,
+                            move |row: ClientRow| {
+                                if let Some(client) = window.client_by_idx(row.index() as u32) {
+                                    window.request_client_delete(&client);
+                                }
+                            }
+                        ),
+                    );
+                    row.connect_closure(
+                        "request-dns",
+                        false,
+                        closure_local!(
+                            #[strong]
+                            window,
+                            move |row: ClientRow| {
+                                if let Some(client) = window.client_by_idx(row.index() as u32) {
+                                    window.request_client_update(&client);
+                                    window.request_dns(&client);
+                                    window.request_client_state(&client);
+                                }
+                            }
+                        ),
+                    );
+                    row.upcast()
+                }
+            ),
        );
    }

--- a/src/frontend/gtk/window/imp.rs
+++ b/src/frontend/gtk/window/imp.rs
@@ -84,11 +84,15 @@ impl Window {
            clipboard.set_text(hostname.to_str().expect("hostname: invalid utf8"));
            button.set_icon_name("emblem-ok-symbolic");
            button.set_css_classes(&["success"]);
-            glib::spawn_future_local(clone!(@weak button => async move {
-                glib::timeout_future_seconds(1).await;
-                button.set_icon_name("edit-copy-symbolic");
-                button.set_css_classes(&[]);
-            }));
+            glib::spawn_future_local(clone!(
+                #[weak]
+                button,
+                async move {
+                    glib::timeout_future_seconds(1).await;
+                    button.set_icon_name("edit-copy-symbolic");
+                    button.set_css_classes(&[]);
+                }
+            ));
        }
    }

--- a/src/server.rs
+++ b/src/server.rs
@@ -1,5 +1,5 @@
-use capture_task::CaptureEvent;
-use emulation_task::EmulationEvent;
+use capture_task::CaptureRequest;
+use emulation_task::EmulationRequest;
 use log;
 use std::{
    cell::{Cell, RefCell},
@@ -45,7 +45,7 @@ enum State {
    Receiving,
    /// Entered the deadzone of another device but waiting
    /// for acknowledgement (Leave event) from the device
-    AwaitingLeave,
+    AwaitAck,
 }

 #[derive(Clone)]
@@ -144,13 +144,8 @@ impl Server {
        let capture = capture_task::new(self.clone(), capture_rx, udp_send_tx.clone());

        // input emulation
-        let emulation = emulation_task::new(
-            self.clone(),
-            emulation_rx,
-            udp_recv_rx,
-            udp_send_tx.clone(),
-            capture_tx.clone(),
-        );
+        let emulation =
+            emulation_task::new(self.clone(), emulation_rx, udp_recv_rx, udp_send_tx.clone());

        // create dns resolver
        let resolver = DnsResolver::new(dns_rx)?;
@@ -253,7 +248,7 @@ impl Server {
        self.notifies.capture.notify_waiters()
    }

-    async fn capture_notified(&self) {
+    async fn capture_enabled(&self) {
        self.notifies.capture.notified().await
    }

@@ -306,8 +301,8 @@ impl Server {

    async fn handle_request(
        &self,
-        capture: &Sender<CaptureEvent>,
-        emulate: &Sender<EmulationEvent>,
+        capture: &Sender<CaptureRequest>,
+        emulate: &Sender<EmulationRequest>,
        event: FrontendRequest,
    ) -> bool {
        log::debug!("frontend: {event:?}");
@@ -372,8 +367,8 @@ impl Server {

    async fn deactivate_client(
        &self,
-        capture: &Sender<CaptureEvent>,
-        emulate: &Sender<EmulationEvent>,
+        capture: &Sender<CaptureRequest>,
+        emulate: &Sender<EmulationRequest>,
        handle: ClientHandle,
    ) {
        log::debug!("deactivating client {handle}");
@@ -382,15 +377,15 @@ impl Server {
            None => return,
        };

-        let _ = capture.send(CaptureEvent::Destroy(handle)).await;
-        let _ = emulate.send(EmulationEvent::Destroy(handle)).await;
+        let _ = capture.send(CaptureRequest::Destroy(handle)).await;
+        let _ = emulate.send(EmulationRequest::Destroy(handle)).await;
        log::debug!("deactivating client {handle} done");
    }

    async fn activate_client(
        &self,
-        capture: &Sender<CaptureEvent>,
-        emulate: &Sender<EmulationEvent>,
+        capture: &Sender<CaptureRequest>,
+        emulate: &Sender<EmulationRequest>,
        handle: ClientHandle,
    ) {
        log::debug!("activating client");
@@ -415,15 +410,17 @@ impl Server {
        };

        /* notify emulation, capture and frontends */
-        let _ = capture.send(CaptureEvent::Create(handle, pos.into())).await;
-        let _ = emulate.send(EmulationEvent::Create(handle)).await;
+        let _ = capture
+            .send(CaptureRequest::Create(handle, pos.into()))
+            .await;
+        let _ = emulate.send(EmulationRequest::Create(handle)).await;
        log::debug!("activating client {handle} done");
    }

    async fn remove_client(
        &self,
-        capture: &Sender<CaptureEvent>,
-        emulate: &Sender<EmulationEvent>,
+        capture: &Sender<CaptureRequest>,
+        emulate: &Sender<EmulationRequest>,
        handle: ClientHandle,
    ) {
        let Some(active) = self
@@ -436,8 +433,14 @@ impl Server {
        };

        if active {
-            let _ = capture.send(CaptureEvent::Destroy(handle)).await;
-            let _ = emulate.send(EmulationEvent::Destroy(handle)).await;
+            let _ = capture.send(CaptureRequest::Destroy(handle)).await;
+            let _ = emulate.send(EmulationRequest::Destroy(handle)).await;
+        }
+    }
+
+    fn update_pressed_keys(&self, handle: ClientHandle, has_pressed_keys: bool) {
+        if let Some((_, s)) = self.client_manager.borrow_mut().get_mut(handle) {
+            s.has_pressed_keys = has_pressed_keys;
        }
    }

@@ -496,8 +499,8 @@ impl Server {
    async fn update_pos(
        &self,
        handle: ClientHandle,
-        capture: &Sender<CaptureEvent>,
-        emulate: &Sender<EmulationEvent>,
+        capture: &Sender<CaptureRequest>,
+        emulate: &Sender<EmulationRequest>,
        pos: Position,
    ) {
        let (changed, active) = {
@@ -514,11 +517,13 @@ impl Server {
        // update state in event input emulator & input capture
        if changed {
            if active {
-                let _ = capture.send(CaptureEvent::Destroy(handle)).await;
-                let _ = emulate.send(EmulationEvent::Destroy(handle)).await;
+                let _ = capture.send(CaptureRequest::Destroy(handle)).await;
+                let _ = emulate.send(EmulationRequest::Destroy(handle)).await;
            }
-            let _ = capture.send(CaptureEvent::Create(handle, pos.into())).await;
-            let _ = emulate.send(EmulationEvent::Create(handle)).await;
+            let _ = capture
+                .send(CaptureRequest::Create(handle, pos.into()))
+                .await;
+            let _ = emulate.send(EmulationRequest::Create(handle)).await;
        }
    }

@@ -557,6 +562,27 @@ impl Server {
            .get_mut(handle)
            .and_then(|(c, _)| c.hostname.clone())
    }
+
+    fn get_state(&self) -> State {
+        self.state.get()
+    }
+
+    fn set_state(&self, state: State) {
+        log::debug!("state => {state:?}");
+        self.state.replace(state);
+    }
+
+    fn set_active(&self, handle: Option<u64>) {
+        log::debug!("active client => {handle:?}");
+        self.active_client.replace(handle);
+    }
+
+    fn active_addr(&self, handle: u64) -> Option<SocketAddr> {
+        self.client_manager
+            .borrow()
+            .get(handle)
+            .and_then(|(_, s)| s.active_addr)
+    }
 }

 async fn listen_frontend(
--- a/src/server/capture_task.rs
+++ b/src/server/capture_task.rs
@@ -1,5 +1,6 @@
 use futures::StreamExt;
-use std::{collections::HashSet, net::SocketAddr};
+use lan_mouse_proto::ProtoEvent;
+use std::net::SocketAddr;

 use tokio::{
    process::Command,
@@ -7,16 +8,16 @@ use tokio::{
    task::JoinHandle,
 };

-use input_capture::{self, CaptureError, CaptureHandle, InputCapture, InputCaptureError, Position};
-
-use input_event::{scancode, Event, KeyboardEvent};
+use input_capture::{
+    self, CaptureError, CaptureEvent, CaptureHandle, InputCapture, InputCaptureError, Position,
+};

 use crate::{client::ClientHandle, frontend::Status, server::State};

 use super::Server;

 #[derive(Clone, Copy, Debug)]
-pub(crate) enum CaptureEvent {
+pub(crate) enum CaptureRequest {
    /// capture must release the mouse
    Release,
    /// add a capture client
@@ -27,8 +28,8 @@ pub(crate) enum CaptureEvent {

 pub(crate) fn new(
    server: Server,
-    capture_rx: Receiver<CaptureEvent>,
-    udp_send: Sender<(Event, SocketAddr)>,
+    capture_rx: Receiver<CaptureRequest>,
+    udp_send: Sender<(ProtoEvent, SocketAddr)>,
 ) -> JoinHandle<()> {
    let backend = server.config.capture_backend.map(|b| b.into());
    tokio::task::spawn_local(capture_task(server, backend, udp_send, capture_rx))
@@ -37,8 +38,8 @@ pub(crate) fn new(
 async fn capture_task(
    server: Server,
    backend: Option<input_capture::Backend>,
-    sender_tx: Sender<(Event, SocketAddr)>,
-    mut notify_rx: Receiver<CaptureEvent>,
+    sender_tx: Sender<(ProtoEvent, SocketAddr)>,
+    mut notify_rx: Receiver<CaptureRequest>,
 ) {
    loop {
        if let Err(e) = do_capture(backend, &server, &sender_tx, &mut notify_rx).await {
@@ -53,7 +54,7 @@ async fn capture_task(
        loop {
            tokio::select! {
                _ = notify_rx.recv() => continue, /* need to ignore requests here! */
-                _ = server.capture_notified() => break,
+                _ = server.capture_enabled() => break,
                _ = server.cancelled() => return,
            }
        }
@@ -63,51 +64,49 @@ async fn capture_task(
 async fn do_capture(
    backend: Option<input_capture::Backend>,
    server: &Server,
-    sender_tx: &Sender<(Event, SocketAddr)>,
-    notify_rx: &mut Receiver<CaptureEvent>,
+    sender_tx: &Sender<(ProtoEvent, SocketAddr)>,
+    notify_rx: &mut Receiver<CaptureRequest>,
 ) -> Result<(), InputCaptureError> {
    /* allow cancelling capture request */
    let mut capture = tokio::select! {
-        r = input_capture::create(backend) => {
-            r?
-        },
+        r = InputCapture::new(backend) => r?,
        _ = server.cancelled() => return Ok(()),
    };

    server.set_capture_status(Status::Enabled);

-    // FIXME DUPLICATES
-    let clients = server
-        .client_manager
-        .borrow()
-        .get_client_states()
-        .map(|(h, s)| (h, s.clone()))
-        .collect::<Vec<_>>();
-    log::info!("{clients:?}");
-    for (handle, (config, _state)) in clients {
-        capture.create(handle, config.pos.into()).await?;
+    let clients = server.active_clients();
+    let clients = clients.iter().copied().map(|handle| {
+        (
+            handle,
+            server
+                .client_manager
+                .borrow()
+                .get(handle)
+                .map(|(c, _)| c.pos)
+                .expect("no such client"),
+        )
+    });
+    for (handle, pos) in clients {
+        capture.create(handle, pos.into()).await?;
    }

-    let mut pressed_keys = HashSet::new();
    loop {
        tokio::select! {
-            event = capture.next() => {
-                match event {
-                    Some(Ok(event)) => handle_capture_event(server, &mut capture, sender_tx, event, &mut pressed_keys).await?,
-                    Some(Err(e)) => return Err(e.into()),
-                    None => return Ok(()),
-                }
-            }
+            event = capture.next() => match event {
+                Some(event) => handle_capture_event(server, &mut capture, sender_tx, event?).await?,
+                None => return Ok(()),
+            },
            e = notify_rx.recv() => {
                log::debug!("input capture notify rx: {e:?}");
                match e {
                    Some(e) => match e {
-                        CaptureEvent::Release => {
+                        CaptureRequest::Release => {
                            capture.release().await?;
                            server.state.replace(State::Receiving);
                        }
-                        CaptureEvent::Create(h, p) => capture.create(h, p).await?,
-                        CaptureEvent::Destroy(h) => capture.destroy(h).await?,
+                        CaptureRequest::Create(h, p) => capture.create(h, p).await?,
+                        CaptureRequest::Destroy(h) => capture.destroy(h).await?,
                    },
                    None => break,
                }
@@ -119,93 +118,52 @@ async fn do_capture(
    Ok(())
 }

-fn update_pressed_keys(pressed_keys: &mut HashSet<scancode::Linux>, key: u32, state: u8) {
-    if let Ok(scancode) = scancode::Linux::try_from(key) {
-        log::debug!("key: {key}, state: {state}, scancode: {scancode:?}");
-        match state {
-            1 => pressed_keys.insert(scancode),
-            _ => pressed_keys.remove(&scancode),
-        };
-    }
-}
-
 async fn handle_capture_event(
    server: &Server,
-    capture: &mut Box<dyn InputCapture>,
-    sender_tx: &Sender<(Event, SocketAddr)>,
-    event: (CaptureHandle, Event),
-    pressed_keys: &mut HashSet<scancode::Linux>,
+    capture: &mut InputCapture,
+    sender_tx: &Sender<(ProtoEvent, SocketAddr)>,
+    event: (CaptureHandle, CaptureEvent),
 ) -> Result<(), CaptureError> {
-    let (handle, mut e) = event;
-    log::trace!("({handle}) {e:?}");
+    let (handle, event) = event;
+    log::trace!("({handle}) {event:?}");

-    if let Event::Keyboard(KeyboardEvent::Key { key, state, .. }) = e {
-        update_pressed_keys(pressed_keys, key, state);
-        log::debug!("{pressed_keys:?}");
-        if server.release_bind.iter().all(|k| pressed_keys.contains(k)) {
-            pressed_keys.clear();
-            log::info!("releasing pointer");
-            capture.release().await?;
-            server.state.replace(State::Receiving);
-            log::trace!("STATE ===> Receiving");
-            // send an event to release all the modifiers
-            e = Event::Disconnect();
-        }
-    }
-
-    let info = {
-        let mut enter = false;
-        let mut start_timer = false;
-
-        // get client state for handle
-        let mut client_manager = server.client_manager.borrow_mut();
-        let client_state = client_manager.get_mut(handle).map(|(_, s)| s);
-        if let Some(client_state) = client_state {
-            // if we just entered the client we want to send additional enter events until
-            // we get a leave event
-            if let Event::Enter() = e {
-                server.state.replace(State::AwaitingLeave);
-                server.active_client.replace(Some(handle));
-                log::trace!("Active client => {}", handle);
-                start_timer = true;
-                log::trace!("STATE ===> AwaitingLeave");
-                enter = true;
-            } else {
-                // ignore any potential events in receiving mode
-                if server.state.get() == State::Receiving && e != Event::Disconnect() {
-                    return Ok(());
-                }
-            }
-            Some((client_state.active_addr, enter, start_timer))
-        } else {
-            None
-        }
-    };
-
-    let (addr, enter, start_timer) = match info {
-        Some(i) => i,
-        None => {
-            // should not happen
-            log::warn!("unknown client!");
-            capture.release().await?;
-            server.state.replace(State::Receiving);
-            log::trace!("STATE ===> Receiving");
-            return Ok(());
-        }
-    };
-
-    if start_timer {
+    // capture started
+    if event == CaptureEvent::Begin {
+        // wait for remote to acknowlegde enter
+        server.set_state(State::AwaitAck);
+        server.set_active(Some(handle));
+        // restart ping timer to release capture if unreachable
        server.restart_ping_timer();
-    }
-    if enter {
+        // spawn enter hook cmd
        spawn_hook_command(server, handle);
    }
-    if let Some(addr) = addr {
-        if enter {
-            let _ = sender_tx.send((Event::Enter(), addr)).await;
-        }
-        let _ = sender_tx.send((e, addr)).await;
+
+    // release capture if emulation set state to Receiveing
+    if server.get_state() == State::Receiving {
+        capture.release().await?;
+        return Ok(());
    }
+
+    // check release bind
+    if capture.keys_pressed(&server.release_bind) {
+        capture.release().await?;
+        server.set_state(State::Receiving);
+    }
+
+    if let Some(addr) = server.active_addr(handle) {
+        let event = match server.get_state() {
+            State::Sending => match event {
+                CaptureEvent::Begin => ProtoEvent::Enter(0),
+                CaptureEvent::Input(e) => ProtoEvent::Input(e),
+            },
+            /* send additional enter events until acknowleged */
+            State::AwaitAck => ProtoEvent::Enter(0),
+            /* released capture */
+            State::Receiving => ProtoEvent::Leave(0),
+        };
+        sender_tx.send((event, addr)).await.expect("sender closed");
+    };
+
    Ok(())
 }

--- a/src/server/emulation_task.rs
+++ b/src/server/emulation_task.rs
@@ -1,5 +1,6 @@
 use std::net::SocketAddr;

+use lan_mouse_proto::ProtoEvent;
 use tokio::{
    sync::mpsc::{Receiver, Sender},
    task::JoinHandle,
@@ -11,12 +12,11 @@ use crate::{
    server::State,
 };
 use input_emulation::{self, EmulationError, EmulationHandle, InputEmulation, InputEmulationError};
-use input_event::{Event, KeyboardEvent};

-use super::{network_task::NetworkError, CaptureEvent, Server};
+use super::{network_task::NetworkError, Server};

 #[derive(Clone, Debug)]
-pub(crate) enum EmulationEvent {
+pub(crate) enum EmulationRequest {
    /// create a new client
    Create(EmulationHandle),
    /// destroy a client
@@ -27,24 +27,22 @@ pub(crate) enum EmulationEvent {

 pub(crate) fn new(
    server: Server,
-    emulation_rx: Receiver<EmulationEvent>,
-    udp_rx: Receiver<Result<(Event, SocketAddr), NetworkError>>,
-    sender_tx: Sender<(Event, SocketAddr)>,
-    capture_tx: Sender<CaptureEvent>,
+    emulation_rx: Receiver<EmulationRequest>,
+    udp_rx: Receiver<Result<(ProtoEvent, SocketAddr), NetworkError>>,
+    sender_tx: Sender<(ProtoEvent, SocketAddr)>,
 ) -> JoinHandle<()> {
-    let emulation_task = emulation_task(server, emulation_rx, udp_rx, sender_tx, capture_tx);
+    let emulation_task = emulation_task(server, emulation_rx, udp_rx, sender_tx);
    tokio::task::spawn_local(emulation_task)
 }

 async fn emulation_task(
    server: Server,
-    mut rx: Receiver<EmulationEvent>,
-    mut udp_rx: Receiver<Result<(Event, SocketAddr), NetworkError>>,
-    sender_tx: Sender<(Event, SocketAddr)>,
-    capture_tx: Sender<CaptureEvent>,
+    mut rx: Receiver<EmulationRequest>,
+    mut udp_rx: Receiver<Result<(ProtoEvent, SocketAddr), NetworkError>>,
+    sender_tx: Sender<(ProtoEvent, SocketAddr)>,
 ) {
    loop {
-        if let Err(e) = do_emulation(&server, &mut rx, &mut udp_rx, &sender_tx, &capture_tx).await {
+        if let Err(e) = do_emulation(&server, &mut rx, &mut udp_rx, &sender_tx).await {
            log::warn!("input emulation exited: {e}");
        }
        server.set_emulation_status(Status::Disabled);
@@ -65,17 +63,14 @@ async fn emulation_task(

 async fn do_emulation(
    server: &Server,
-    rx: &mut Receiver<EmulationEvent>,
-    udp_rx: &mut Receiver<Result<(Event, SocketAddr), NetworkError>>,
-    sender_tx: &Sender<(Event, SocketAddr)>,
-    capture_tx: &Sender<CaptureEvent>,
+    rx: &mut Receiver<EmulationRequest>,
+    udp_rx: &mut Receiver<Result<(ProtoEvent, SocketAddr), NetworkError>>,
+    sender_tx: &Sender<(ProtoEvent, SocketAddr)>,
 ) -> Result<(), InputEmulationError> {
    let backend = server.config.emulation_backend.map(|b| b.into());
    log::info!("creating input emulation...");
    let mut emulation = tokio::select! {
-        r = input_emulation::create(backend) => {
-            r?
-        }
+        r = InputEmulation::new(backend) => r?,
        _ = server.cancelled() => return Ok(()),
    };

@@ -86,24 +81,17 @@ async fn do_emulation(
        emulation.create(handle).await;
    }

-    let res = do_emulation_session(server, &mut emulation, rx, udp_rx, sender_tx, capture_tx).await;
-
-    // release potentially still pressed keys
-    release_all_keys(server, &mut emulation).await?;
-
-    emulation.terminate().await;
-    res?;
-
-    Ok(())
+    let res = do_emulation_session(server, &mut emulation, rx, udp_rx, sender_tx).await;
+    emulation.terminate().await; // manual drop
+    res
 }

 async fn do_emulation_session(
    server: &Server,
-    emulation: &mut Box<dyn InputEmulation>,
-    rx: &mut Receiver<EmulationEvent>,
-    udp_rx: &mut Receiver<Result<(Event, SocketAddr), NetworkError>>,
-    sender_tx: &Sender<(Event, SocketAddr)>,
-    capture_tx: &Sender<CaptureEvent>,
+    emulation: &mut InputEmulation,
+    rx: &mut Receiver<EmulationRequest>,
+    udp_rx: &mut Receiver<Result<(ProtoEvent, SocketAddr), NetworkError>>,
+    sender_tx: &Sender<(ProtoEvent, SocketAddr)>,
 ) -> Result<(), InputEmulationError> {
    let mut last_ignored = None;

@@ -117,13 +105,13 @@ async fn do_emulation_session(
                        continue;
                    }
                };
-                handle_udp_rx(server, capture_tx, emulation, sender_tx, &mut last_ignored, udp_event).await?;
+                handle_incoming_event(server, emulation, sender_tx, &mut last_ignored, udp_event).await?;
            }
            emulate_event = rx.recv() => {
                match emulate_event.expect("channel closed") {
-                    EmulationEvent::Create(h) => emulation.create(h).await,
-                    EmulationEvent::Destroy(h) => emulation.destroy(h).await,
-                    EmulationEvent::ReleaseKeys(c) => release_keys(server, emulation, c).await?,
+                    EmulationRequest::Create(h) => { let _ = emulation.create(h).await; },
+                    EmulationRequest::Destroy(h) => emulation.destroy(h).await,
+                    EmulationRequest::ReleaseKeys(c) => emulation.release_keys(c).await?,
                }
            }
            _ = server.notifies.cancel.cancelled() => break Ok(()),
@@ -131,13 +119,12 @@ async fn do_emulation_session(
    }
 }

-async fn handle_udp_rx(
+async fn handle_incoming_event(
    server: &Server,
-    capture_tx: &Sender<CaptureEvent>,
-    emulate: &mut Box<dyn InputEmulation>,
-    sender_tx: &Sender<(Event, SocketAddr)>,
+    emulate: &mut InputEmulation,
+    sender_tx: &Sender<(ProtoEvent, SocketAddr)>,
    last_ignored: &mut Option<SocketAddr>,
-    event: (Event, SocketAddr),
+    event: (ProtoEvent, SocketAddr),
 ) -> Result<(), EmulationError> {
    let (event, addr) = event;

@@ -151,72 +138,27 @@ async fn handle_udp_rx(
    };

    match (event, addr) {
-        (Event::Pong(), _) => { /* ignore pong events */ }
-        (Event::Ping(), addr) => {
-            let _ = sender_tx.send((Event::Pong(), addr)).await;
+        (ProtoEvent::Pong, _) => { /* ignore pong events */ }
+        (ProtoEvent::Ping, addr) => {
+            let _ = sender_tx.send((ProtoEvent::Pong, addr)).await;
        }
-        (Event::Disconnect(), _) => {
-            release_keys(server, emulate, handle).await?;
+        (ProtoEvent::Leave(_), _) => emulate.release_keys(handle).await?,
+        (ProtoEvent::Ack(_), _) => server.set_state(State::Sending),
+        (ProtoEvent::Enter(_), _) => {
+            server.set_state(State::Receiving);
+            sender_tx
+                .send((ProtoEvent::Ack(0), addr))
+                .await
+                .expect("no channel")
        }
-        (event, addr) => {
-            // tell clients that we are ready to receive events
-            if let Event::Enter() = event {
-                let _ = sender_tx.send((Event::Leave(), addr)).await;
-            }
-
-            match server.state.get() {
-                State::Sending => {
-                    if let Event::Leave() = event {
-                        // ignore additional leave events that may
-                        // have been sent for redundancy
-                    } else {
-                        // upon receiving any event, we go back to receiving mode
-                        server.state.replace(State::Receiving);
-                        let _ = capture_tx.send(CaptureEvent::Release).await;
-                        log::trace!("STATE ===> Receiving");
-                    }
-                }
-                State::Receiving => {
-                    let ignore_event =
-                        if let Event::Keyboard(KeyboardEvent::Key { key, state, .. }) = event {
-                            let (ignore_event, restart_timer) = update_client_keys(
-                                &mut server.client_manager.borrow_mut(),
-                                handle,
-                                key,
-                                state,
-                            );
-                            // restart timer if necessary
-                            if restart_timer {
-                                server.restart_ping_timer();
-                            }
-                            ignore_event
-                        } else {
-                            false
-                        };
-                    // workaround buggy rdp backend.
-                    if !ignore_event {
-                        // consume event
-                        emulate.consume(event, handle).await?;
-                        log::trace!("{event} => emulate");
-                    }
-                }
-                State::AwaitingLeave => {
-                    // we just entered the deadzone of a client, so
-                    // we need to ignore events that may still
-                    // be on the way until a leave event occurs
-                    // telling us the client registered the enter
-                    if let Event::Leave() = event {
-                        server.state.replace(State::Sending);
-                        log::trace!("STATE ===> Sending");
-                    }
-
-                    // entering a client that is waiting for a leave
-                    // event should still be possible
-                    if let Event::Enter() = event {
-                        server.state.replace(State::Receiving);
-                        let _ = capture_tx.send(CaptureEvent::Release).await;
-                        log::trace!("STATE ===> Receiving");
-                    }
+        (ProtoEvent::Input(e), _) => {
+            if let State::Receiving = server.get_state() {
+                log::trace!("{event} => emulate");
+                emulate.consume(e, handle).await?;
+                let has_pressed_keys = emulate.has_pressed_keys(handle);
+                server.update_pressed_keys(handle, has_pressed_keys);
+                if has_pressed_keys {
+                    server.restart_ping_timer();
                }
            }
        }
@@ -224,57 +166,6 @@ async fn handle_udp_rx(
    Ok(())
 }

-async fn release_all_keys(
-    server: &Server,
-    emulation: &mut Box<dyn InputEmulation>,
-) -> Result<(), EmulationError> {
-    let clients = server
-        .client_manager
-        .borrow()
-        .get_client_states()
-        .map(|(h, _)| h)
-        .collect::<Vec<_>>();
-    for client in clients {
-        release_keys(server, emulation, client).await?;
-    }
-    Ok(())
-}
-
-async fn release_keys(
-    server: &Server,
-    emulate: &mut Box<dyn InputEmulation>,
-    client: ClientHandle,
-) -> Result<(), EmulationError> {
-    let keys = server
-        .client_manager
-        .borrow_mut()
-        .get_mut(client)
-        .iter_mut()
-        .flat_map(|(_, s)| s.pressed_keys.drain())
-        .collect::<Vec<_>>();
-
-    for key in keys {
-        let event = Event::Keyboard(KeyboardEvent::Key {
-            time: 0,
-            key,
-            state: 0,
-        });
-        emulate.consume(event, client).await?;
-        if let Ok(key) = input_event::scancode::Linux::try_from(key) {
-            log::warn!("releasing stuck key: {key:?}");
-        }
-    }
-
-    let event = Event::Keyboard(KeyboardEvent::Modifiers {
-        mods_depressed: 0,
-        mods_latched: 0,
-        mods_locked: 0,
-        group: 0,
-    });
-    emulate.consume(event, client).await?;
-    Ok(())
-}
-
 fn activate_client_if_exists(
    client_manager: &mut ClientManager,
    addr: SocketAddr,
@@ -299,25 +190,3 @@ fn activate_client_if_exists(
    client_state.active_addr = Some(addr);
    Some(handle)
 }
-
-fn update_client_keys(
-    client_manager: &mut ClientManager,
-    handle: ClientHandle,
-    key: u32,
-    state: u8,
-) -> (bool, bool) {
-    let Some(client_state) = client_manager.get_mut(handle).map(|(_, s)| s) else {
-        return (true, false);
-    };
-
-    // ignore double press / release events
-    let ignore_event = if state == 0 {
-        // ignore release event if key not pressed
-        !client_state.pressed_keys.remove(&key)
-    } else {
-        // ignore press event if key not released
-        !client_state.pressed_keys.insert(key)
-    };
-    let restart_timer = !client_state.pressed_keys.is_empty();
-    (ignore_event, restart_timer)
-}
--- a/src/server/network_task.rs
+++ b/src/server/network_task.rs
@@ -7,14 +7,13 @@ use tokio::{
    task::JoinHandle,
 };

-use input_event::{Event, ProtocolError};
-
 use super::Server;
+use lan_mouse_proto::{ProtoEvent, ProtocolError};

 pub(crate) async fn new(
    server: Server,
-    udp_recv_tx: Sender<Result<(Event, SocketAddr), NetworkError>>,
-    udp_send_rx: Receiver<(Event, SocketAddr)>,
+    udp_recv_tx: Sender<Result<(ProtoEvent, SocketAddr), NetworkError>>,
+    udp_send_rx: Receiver<(ProtoEvent, SocketAddr)>,
 ) -> io::Result<JoinHandle<()>> {
    // bind the udp socket
    let listen_addr = SocketAddr::new("0.0.0.0".parse().unwrap(), server.port.get());
@@ -62,7 +61,7 @@ async fn update_port(server: &Server, socket: &mut UdpSocket) {

 async fn udp_receiver(
    socket: &UdpSocket,
-    receiver_tx: &Sender<Result<(Event, SocketAddr), NetworkError>>,
+    receiver_tx: &Sender<Result<(ProtoEvent, SocketAddr), NetworkError>>,
 ) {
    loop {
        let event = receive_event(socket).await;
@@ -70,7 +69,7 @@ async fn udp_receiver(
    }
 }

-async fn udp_sender(socket: &UdpSocket, rx: &mut Receiver<(Event, SocketAddr)>) {
+async fn udp_sender(socket: &UdpSocket, rx: &mut Receiver<(ProtoEvent, SocketAddr)>) {
    loop {
        let (event, addr) = rx.recv().await.expect("channel closed");
        if let Err(e) = send_event(socket, event, addr) {
@@ -87,16 +86,17 @@ pub(crate) enum NetworkError {
    Io(#[from] io::Error),
 }

-async fn receive_event(socket: &UdpSocket) -> Result<(Event, SocketAddr), NetworkError> {
-    let mut buf = vec![0u8; 22];
-    let (_amt, src) = socket.recv_from(&mut buf).await?;
-    Ok((Event::try_from(buf)?, src))
+async fn receive_event(socket: &UdpSocket) -> Result<(ProtoEvent, SocketAddr), NetworkError> {
+    let mut buf = [0u8; lan_mouse_proto::MAX_EVENT_SIZE];
+    let (_len, src) = socket.recv_from(&mut buf).await?;
+    let event = ProtoEvent::try_from(buf)?;
+    Ok((event, src))
 }

-fn send_event(sock: &UdpSocket, e: Event, addr: SocketAddr) -> Result<usize, NetworkError> {
+fn send_event(sock: &UdpSocket, e: ProtoEvent, addr: SocketAddr) -> Result<usize, NetworkError> {
    log::trace!("{:20} ------>->->-> {addr}", e.to_string());
-    let data: Vec<u8> = (&e).into();
+    let (data, len): ([u8; lan_mouse_proto::MAX_EVENT_SIZE], usize) = e.into();
    // When udp blocks, we dont want to block the event loop.
    // Dropping events is better than potentially crashing the input capture.
-    Ok(sock.try_send_to(&data, addr)?)
+    Ok(sock.try_send_to(&data[..len], addr)?)
 }
--- a/src/server/ping_task.rs
+++ b/src/server/ping_task.rs
@@ -1,20 +1,19 @@
 use std::{net::SocketAddr, time::Duration};

+use lan_mouse_proto::ProtoEvent;
 use tokio::{sync::mpsc::Sender, task::JoinHandle};

-use input_event::Event;
-
 use crate::client::ClientHandle;

-use super::{capture_task::CaptureEvent, emulation_task::EmulationEvent, Server, State};
+use super::{capture_task::CaptureRequest, emulation_task::EmulationRequest, Server, State};

 const MAX_RESPONSE_TIME: Duration = Duration::from_millis(500);

 pub(crate) fn new(
    server: Server,
-    sender_ch: Sender<(Event, SocketAddr)>,
-    emulate_notify: Sender<EmulationEvent>,
-    capture_notify: Sender<CaptureEvent>,
+    sender_ch: Sender<(ProtoEvent, SocketAddr)>,
+    emulate_notify: Sender<EmulationRequest>,
+    capture_notify: Sender<CaptureRequest>,
 ) -> JoinHandle<()> {
    // timer task
    tokio::task::spawn_local(async move {
@@ -27,9 +26,9 @@ pub(crate) fn new(

 async fn ping_task(
    server: &Server,
-    sender_ch: Sender<(Event, SocketAddr)>,
-    emulate_notify: Sender<EmulationEvent>,
-    capture_notify: Sender<CaptureEvent>,
+    sender_ch: Sender<(ProtoEvent, SocketAddr)>,
+    emulate_notify: Sender<EmulationRequest>,
+    capture_notify: Sender<CaptureRequest>,
 ) {
    loop {
        // wait for wake up signal
@@ -42,8 +41,8 @@ async fn ping_task(
                let ping_clients: Vec<ClientHandle> = if receiving {
                    // if receiving we care about clients with pressed keys
                    client_manager
-                        .get_client_states_mut()
-                        .filter(|(_, (_, s))| !s.pressed_keys.is_empty())
+                        .get_client_states()
+                        .filter(|(_, (_, s))| s.has_pressed_keys)
                        .map(|(h, _)| h)
                        .collect()
                } else {
@@ -86,7 +85,7 @@ async fn ping_task(

            // ping clients
            for addr in ping_addrs {
-                if sender_ch.send((Event::Ping(), addr)).await.is_err() {
+                if sender_ch.send((ProtoEvent::Ping, addr)).await.is_err() {
                    break;
                }
            }
@@ -123,14 +122,14 @@ async fn ping_task(
            if receiving {
                for h in unresponsive_clients {
                    log::warn!("device not responding, releasing keys!");
-                    let _ = emulate_notify.send(EmulationEvent::ReleaseKeys(h)).await;
+                    let _ = emulate_notify.send(EmulationRequest::ReleaseKeys(h)).await;
                }
            } else {
                // release pointer if the active client has not responded
                if !unresponsive_clients.is_empty() {
                    log::warn!("client not responding, releasing pointer!");
                    server.state.replace(State::Receiving);
-                    let _ = capture_notify.send(CaptureEvent::Release).await;
+                    let _ = capture_notify.send(CaptureRequest::Release).await;
                }
            }
        }
Author	SHA1	Message	Date
Ferdinand Schober	70e2d9fecb	update macos + windows	2024-08-11 16:28:22 +02:00
Ferdinand Schober	ede8cd4acb	include size_of for older rust versions	2024-08-11 16:00:03 +02:00
Ferdinand Schober	1e1476d58e	move lan-mouse protocol into separate crate	2024-08-09 15:01:39 +02:00
Ferdinand Schober	fe06ca1fae	cleanup capture task (#177 ) * cleanup capture task * rename {Capture,Emulation}Event to %Request	2024-08-09 14:43:55 +02:00
Ferdinand Schober	266ad28c6b	track pressed keys in input-capture (#170 ) move pressed key tracking to input capture	2024-08-09 13:18:23 +02:00
Ferdinand Schober	096567640c	fix pressed key tracking accidentally broke this in `8f7890c` closes #174	2024-08-08 13:33:04 +02:00
Ferdinand Schober	8f7890c9be	move refcounting of key presses to input-emulation (#169 )	2024-08-06 16:46:32 +02:00
Ferdinand Schober	68361b25d1	fix crash due to dropped fd (#167 )	2024-08-05 14:16:45 +02:00
Ferdinand Schober	22dc33367b	chore: Release	2024-07-30 11:13:05 +02:00
Ferdinand Schober	ec412a5e74	chore: Release	2024-07-30 11:12:20 +02:00
Ferdinand Schober	e1096ae86c	fix macos build error	2024-07-30 11:11:45 +02:00
Ferdinand Schober	de3167221c	chore: Release	2024-07-30 11:07:49 +02:00
Ferdinand Schober	0509b51a61	chore: Release	2024-07-30 11:06:27 +02:00
Ferdinand Schober	281cb406dd	chore: Release	2024-07-30 11:06:04 +02:00
Ferdinand Schober	06ac390dbf	chore: Release	2024-07-30 11:05:03 +02:00
Ferdinand Schober	dcc9250b6d	fix repository url	2024-07-30 11:04:21 +02:00
Ferdinand Schober	376ae50b45	chore: Release	2024-07-30 11:03:08 +02:00
Ferdinand Schober	0e2c749b29	fix conditional compilation	2024-07-30 10:52:56 +02:00
Ferdinand Schober	127c3366bf	derive barrier_id from cursor position (#162 ) this should fix #140	2024-07-19 15:23:04 +02:00
Ferdinand Schober	00e1ded35d	fix windows build	2024-07-19 15:06:13 +02:00
Ferdinand Schober	65fb228db5	upgrade dependencies	2024-07-19 12:58:52 +02:00
Ferdinand Schober	975d4b58a5	fix scrolling factor in xdp emulation	2024-07-17 11:26:43 +02:00
Ferdinand Schober	0be85f63f7	ensure all keys are released when emulation ends	2024-07-16 22:43:56 +02:00
Ferdinand Schober	bea7d6f8a5	Allow input capture & emulation being disabled (#158 ) * Input capture and emulation can now be disabled and will prompt the user to enable again. * Improved error handling to deliver more useful error messages	2024-07-16 20:34:46 +02:00
Hannes Schulze	55bdf1e63e	Update Nix Flake (#161 ) * nix: add support for aarch64-linux * nix: add librsvg to enable svg icons in gtk	2024-07-16 14:59:36 +02:00
Bill Doyle	84696760f0	Add warning about Windows hiding the cursor (#160 )	2024-07-13 00:55:02 +02:00