Add native self-hosted instance connection to fluxer_desktop

Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.
This commit is contained in:
2026-07-01 18:22:43 -04:00
commit 682afacd30
1763 changed files with 613720 additions and 0 deletions
+466
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@@ -0,0 +1,466 @@
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@@ -0,0 +1,30 @@
[package]
name = "fluxer_windows_input_hook"
version = "0.0.0"
edition = "2024"
license = "AGPL-3.0-or-later"
publish = false
[workspace]
resolver = "2"
[lib]
crate-type = ["cdylib", "rlib"]
[dependencies]
fluxer_desktop_native = {path = "../rust"}
napi = {version = "3.9.1", default-features = false, features = ["dyn-symbols", "napi8"]}
napi-derive = "3.5.6"
[target.'cfg(target_os = "windows")'.dependencies]
windows = {version = "0.62.2", features = [
"Win32_Foundation",
"Win32_System_LibraryLoader",
"Win32_System_SystemInformation",
"Win32_System_Threading",
"Win32_UI_Input_KeyboardAndMouse",
"Win32_UI_WindowsAndMessaging",
]}
[build-dependencies]
napi-build = "2.3.2"
@@ -0,0 +1,5 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
fn main() {
napi_build::setup();
}
+57
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@@ -0,0 +1,57 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
export type InputEvent =
| {
type: 'keydown' | 'keyup';
keycode: number;
keyName: string;
ctrlKey: boolean;
altKey: boolean;
shiftKey: boolean;
metaKey: boolean;
}
| {
type: 'mousedown' | 'mouseup';
button: number;
ctrlKey: boolean;
altKey: boolean;
shiftKey: boolean;
metaKey: boolean;
x?: number;
y?: number;
}
| {
type: 'mousemove';
x: number;
y: number;
ctrlKey: boolean;
altKey: boolean;
shiftKey: boolean;
metaKey: boolean;
}
| {
type: 'wheel';
x?: number;
y?: number;
deltaX: number;
deltaY: number;
ctrlKey: boolean;
altKey: boolean;
shiftKey: boolean;
metaKey: boolean;
};
export declare class InputHook {
constructor(callback: (event: InputEvent) => void);
start(): void;
stop(): void;
readonly droppedEvents: number;
readonly reinstallCount: number;
}
export declare function isAvailable(): boolean;
export declare const loadError: Error | null;
@@ -0,0 +1,62 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
const {existsSync} = require('node:fs');
const {join, sep} = require('node:path');
const {createNativeLoadError, loadNativeBinding} = require('./loader-diagnostics.cjs');
const MODULE_NAME = '@fluxer/windows-input-hook';
function resolveNativeRoot() {
const asarSegment = `${sep}app.asar${sep}`;
if (!__dirname.includes(asarSegment)) return __dirname;
const unpackedDir = __dirname.replace(asarSegment, `${sep}app.asar.unpacked${sep}`);
return existsSync(unpackedDir) ? unpackedDir : __dirname;
}
function nativeFileName() {
if (process.platform !== 'win32') {
throw new Error(`@fluxer/windows-input-hook is only supported on Windows, got ${process.platform}`);
}
switch (process.arch) {
case 'x64':
return 'windows-input-hook.win32-x64-msvc.node';
case 'arm64':
return 'windows-input-hook.win32-arm64-msvc.node';
default:
throw new Error(`Unsupported Windows architecture: ${process.arch}`);
}
}
let binding = null;
let loadError = null;
if (process.platform === 'win32') {
try {
const nativeRoot = resolveNativeRoot();
const nativePath = join(nativeRoot, nativeFileName());
const loaded = loadNativeBinding({
moduleName: MODULE_NAME,
nativePath,
nativeRoot,
packageDir: __dirname,
probe: false,
});
binding = loaded.binding;
loadError = loaded.loadError;
if (loadError) throw loadError;
} catch (error) {
loadError = createNativeLoadError({
moduleName: MODULE_NAME,
nativeRoot: resolveNativeRoot(),
packageDir: __dirname,
reason: 'native loader threw before binding load completed',
cause: error,
});
throw loadError;
}
}
module.exports = {
InputHook: binding ? binding.InputHook : null,
isAvailable: binding ? binding.isAvailable : () => false,
loadError,
};
@@ -0,0 +1,524 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
const {existsSync, readdirSync, readFileSync, statSync} = require('node:fs');
const os = require('node:os');
const {basename} = require('node:path');
const {spawnSync} = require('node:child_process');
const NATIVE_LOAD_ERROR_MARKER = Symbol.for('fluxer.nativeLoadError');
const MAX_TEXT_LENGTH = 6000;
const MAX_DIRECTORY_ENTRIES = 80;
function trimText(value, limit = MAX_TEXT_LENGTH) {
const text = Buffer.isBuffer(value) ? value.toString('utf8') : String(value ?? '');
const trimmed = text.trim();
if (!trimmed) return null;
return trimmed.length > limit ? `${trimmed.slice(0, limit)}\n...<truncated>` : trimmed;
}
function errorDiagnostic(error) {
if (!error) return null;
if (error instanceof Error) {
return {
name: error.name || 'Error',
message: error.message,
code: error.code || null,
stack: trimText(error.stack || error.message),
};
}
return {
name: typeof error,
message: trimText(String(error)),
code: null,
stack: null,
};
}
function formatErrorDiagnostic(diagnostic) {
if (!diagnostic) return null;
const lines = [];
if (diagnostic.code) lines.push(`code=${diagnostic.code}`);
if (diagnostic.stack) lines.push(diagnostic.stack);
else if (diagnostic.message) lines.push(diagnostic.message);
return trimText(lines.join('\n'));
}
function fileDiagnostic(filePath) {
if (!filePath) return {path: null, exists: false, error: 'not resolved'};
try {
const stat = statSync(filePath);
return {
path: filePath,
exists: true,
size: stat.size,
mode: `0${(stat.mode & 0o777).toString(8)}`,
mtime: stat.mtime.toISOString(),
isFile: stat.isFile(),
isDirectory: stat.isDirectory(),
};
} catch (error) {
const reason = error instanceof Error ? error.message : String(error);
return {path: filePath, exists: false, error: reason};
}
}
function formatFileDiagnostic(diagnostic) {
if (!diagnostic) return 'not resolved';
if (!diagnostic.exists) return `exists=false, statError=${diagnostic.error || '<unknown>'}`;
return [
`exists=true`,
`size=${diagnostic.size}`,
`mode=${diagnostic.mode}`,
`mtime=${diagnostic.mtime}`,
`isFile=${diagnostic.isFile}`,
].join(', ');
}
function directoryDiagnostic(dirPath) {
if (!dirPath) return {path: null, ok: false, error: 'not resolved', entries: [], total: 0, omitted: 0};
try {
const entries = readdirSync(dirPath, {withFileTypes: true}).map((entry) => ({
name: entry.name,
type: entry.isDirectory() ? 'directory' : entry.isFile() ? 'file' : 'other',
}));
entries.sort((a, b) => a.name.localeCompare(b.name));
const visible = entries.slice(0, MAX_DIRECTORY_ENTRIES);
return {
path: dirPath,
ok: true,
entries: visible,
total: entries.length,
omitted: Math.max(0, entries.length - visible.length),
};
} catch (error) {
return {
path: dirPath,
ok: false,
error: error instanceof Error ? error.message : String(error),
entries: [],
total: 0,
omitted: 0,
};
}
}
function formatDirectoryDiagnostic(diagnostic) {
if (!diagnostic) return '<unavailable>';
if (!diagnostic.ok) return `directory listing failed: ${diagnostic.error || '<unknown>'}`;
const entries = diagnostic.entries.map((entry) => `${entry.name}${entry.type === 'directory' ? '/' : ''}`);
const suffix = diagnostic.omitted > 0 ? [`...<${diagnostic.omitted} more entries>`] : [];
return [...entries, ...suffix].join('\n') || '<empty>';
}
function selectedEnvironmentNames(skipNativeProbeEnv) {
const names = [
'ELECTRON_RUN_AS_NODE',
'FLUXER_NATIVE_MODULE_PREFLIGHT_CHILD',
'LD_LIBRARY_PATH',
'DYLD_LIBRARY_PATH',
'DISPLAY',
'WAYLAND_DISPLAY',
'XDG_CURRENT_DESKTOP',
'XDG_SESSION_TYPE',
'DBUS_SESSION_BUS_ADDRESS',
'PULSE_SERVER',
'PIPEWIRE_REMOTE',
'PATH',
];
if (skipNativeProbeEnv) names.push(skipNativeProbeEnv);
return names;
}
function environmentDiagnostics(skipNativeProbeEnv) {
return Object.fromEntries(
selectedEnvironmentNames(skipNativeProbeEnv).map((name) => [name, process.env[name] ?? null]),
);
}
function formatEnvironment(diagnostic) {
return Object.entries(diagnostic)
.map(([name, value]) => `${name}=${value ?? '<unset>'}`)
.join('\n');
}
function runtimeDiagnostics() {
const versions = process.versions || {};
let reportHeader = null;
if (process.report && typeof process.report.getReport === 'function') {
try {
reportHeader = process.report.getReport().header || null;
} catch {
reportHeader = null;
}
}
const glibcRuntime = versions.glibcVersionRuntime || reportHeader?.glibcVersionRuntime || '<unknown>';
const glibcCompiler = versions.glibcVersionCompiler || reportHeader?.glibcVersionCompiler || '<unknown>';
return {
node: versions.node || null,
electron: versions.electron || null,
modules: versions.modules || null,
napi: versions.napi || null,
v8: versions.v8 || null,
uv: versions.uv || null,
openssl: versions.openssl || null,
glibcRuntime,
glibcCompiler,
platform: process.platform,
arch: process.arch,
osType: os.type(),
osRelease: os.release(),
osVersion: typeof os.version === 'function' ? os.version() : null,
execPath: process.execPath,
resourcesPath: process.resourcesPath || null,
cwd: process.cwd(),
};
}
function formatRuntimeDiagnostics(diagnostic) {
return [
`node=${diagnostic.node || '<unknown>'}`,
`electron=${diagnostic.electron || '<none>'}`,
`modules=${diagnostic.modules || '<unknown>'}`,
`napi=${diagnostic.napi || '<unknown>'}`,
`v8=${diagnostic.v8 || '<unknown>'}`,
`uv=${diagnostic.uv || '<unknown>'}`,
`openssl=${diagnostic.openssl || '<unknown>'}`,
`glibcRuntime=${diagnostic.glibcRuntime || '<unknown>'}`,
`glibcCompiler=${diagnostic.glibcCompiler || '<unknown>'}`,
`process=${diagnostic.platform}/${diagnostic.arch}`,
`os=${diagnostic.osType} ${diagnostic.osRelease} ${diagnostic.osVersion || '<unknown>'}`,
`execPath=${diagnostic.execPath}`,
`resourcesPath=${diagnostic.resourcesPath || '<unknown>'}`,
`cwd=${diagnostic.cwd}`,
].join('\n');
}
const REDISTRIBUTABLE_RUNTIME_PATTERNS = [
/^vcruntime\d+(?:_\d+)?\.dll$/i,
/^msvcp\d+(?:_\d+)?\.dll$/i,
/^msvcr\d+(?:_\d+)?\.dll$/i,
/^concrt\d+\.dll$/i,
/^vcamp\d+\.dll$/i,
/^vcomp\d+\.dll$/i,
];
function readPeImports(filePath) {
let buffer;
try {
buffer = readFileSync(filePath);
} catch {
return null;
}
if (buffer.length < 0x40) return null;
const peOffset = buffer.readUInt32LE(0x3c);
if (peOffset <= 0 || peOffset + 24 >= buffer.length) return null;
if (buffer.readUInt32LE(peOffset) !== 0x4550) return null;
const coffOffset = peOffset + 4;
const numberOfSections = buffer.readUInt16LE(coffOffset + 2);
const sizeOfOptionalHeader = buffer.readUInt16LE(coffOffset + 16);
const optionalHeaderOffset = coffOffset + 20;
if (optionalHeaderOffset + sizeOfOptionalHeader > buffer.length) return null;
const magic = buffer.readUInt16LE(optionalHeaderOffset);
if (magic !== 0x10b && magic !== 0x20b) return null;
const dataDirectoriesOffset = optionalHeaderOffset + (magic === 0x20b ? 112 : 96);
const importEntryOffset = dataDirectoriesOffset + 8;
if (importEntryOffset + 8 > buffer.length) return null;
const importRva = buffer.readUInt32LE(importEntryOffset);
if (importRva === 0) return [];
const sections = [];
const sectionTableOffset = optionalHeaderOffset + sizeOfOptionalHeader;
for (let i = 0; i < numberOfSections; i++) {
const base = sectionTableOffset + i * 40;
if (base + 40 > buffer.length) return null;
sections.push({
virtualSize: buffer.readUInt32LE(base + 8),
virtualAddress: buffer.readUInt32LE(base + 12),
rawSize: buffer.readUInt32LE(base + 16),
rawPointer: buffer.readUInt32LE(base + 20),
});
}
const rvaToOffset = (rva) => {
for (const s of sections) {
const span = Math.max(s.virtualSize, s.rawSize);
if (rva >= s.virtualAddress && rva < s.virtualAddress + span) {
return rva - s.virtualAddress + s.rawPointer;
}
}
return -1;
};
const readCString = (offset) => {
let end = offset;
while (end < buffer.length && buffer[end] !== 0) end++;
return buffer.toString('ascii', offset, end);
};
const importTableOffset = rvaToOffset(importRva);
if (importTableOffset < 0) return [];
const imports = new Set();
for (let i = 0; i < 1024; i++) {
const base = importTableOffset + i * 20;
if (base + 20 > buffer.length) break;
const lookupRva = buffer.readUInt32LE(base);
const nameRva = buffer.readUInt32LE(base + 12);
const iatRva = buffer.readUInt32LE(base + 16);
if (lookupRva === 0 && nameRva === 0 && iatRva === 0) break;
const nameOffset = rvaToOffset(nameRva);
if (nameOffset < 0) continue;
const name = readCString(nameOffset);
if (name) imports.add(name);
}
return Array.from(imports);
}
function windowsImportProbe(nativePath) {
const imports = readPeImports(nativePath);
if (imports === null) return null;
const sortedImports = [...imports].sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase()));
const redistributable = sortedImports.filter((dll) =>
REDISTRIBUTABLE_RUNTIME_PATTERNS.some((pattern) => pattern.test(dll)),
);
return {
command: ['pe-imports', nativePath],
status: 0,
signal: null,
error: null,
stdout: sortedImports.join('\n') || null,
stderr: null,
missing: [],
redistributable,
};
}
function dependencyProbe(nativePath) {
if (!nativePath || !existsSync(nativePath)) return null;
if (process.platform === 'win32') return windowsImportProbe(nativePath);
const command =
process.platform === 'linux'
? ['ldd', nativePath]
: process.platform === 'darwin'
? ['otool', '-L', nativePath]
: null;
if (!command) return null;
const [bin, ...args] = command;
const result = spawnSync(bin, args, {
encoding: 'utf8',
timeout: 4000,
stdio: ['ignore', 'pipe', 'pipe'],
});
const stdout = trimText(result.stdout);
const stderr = trimText(result.stderr);
const missing =
process.platform === 'linux' && stdout
? stdout
.split('\n')
.map((line) => line.trim())
.filter((line) => line.includes('not found'))
: [];
return {
command,
status: result.status,
signal: result.signal || null,
error: result.error ? result.error.message : null,
stdout,
stderr,
missing,
redistributable: [],
};
}
function formatDependencyProbe(diagnostic) {
if (!diagnostic) return null;
const status = diagnostic.error
? `error=${diagnostic.error}`
: diagnostic.signal
? `signal=${diagnostic.signal}`
: `status=${diagnostic.status}`;
return [
`$ ${diagnostic.command.join(' ')}`,
status,
diagnostic.missing?.length ? `missing:\n${diagnostic.missing.join('\n')}` : null,
diagnostic.redistributable?.length
? `redistributableRuntimeImports (require VC++ redist on host):\n${diagnostic.redistributable.join('\n')}`
: null,
diagnostic.stdout ? `stdout:\n${diagnostic.stdout}` : null,
diagnostic.stderr ? `stderr:\n${diagnostic.stderr}` : null,
]
.filter(Boolean)
.join('\n');
}
function formatExtraDiagnostic(diagnostic) {
if (!diagnostic) return null;
if (typeof diagnostic === 'string') return diagnostic;
if (typeof diagnostic === 'object' && diagnostic.name && diagnostic.text) {
return `${diagnostic.name}:\n${diagnostic.text}`;
}
return `extra:\n${trimText(JSON.stringify(diagnostic, null, 2))}`;
}
function collectNativeDiagnostics({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics = [],
}) {
return {
schemaVersion: 1,
moduleName,
reason,
target: {
platform: process.platform,
arch: process.arch,
},
packageDir: packageDir || null,
nativeRoot: nativeRoot || null,
nativePath: nativePath || null,
nativeFile: nativePath ? basename(nativePath) : null,
nativeFileStat: fileDiagnostic(nativePath),
runtime: runtimeDiagnostics(),
environment: environmentDiagnostics(skipNativeProbeEnv),
nativeRootEntries: directoryDiagnostic(nativeRoot),
dependencyProbe: dependencyProbe(nativePath),
extraDiagnostics: extraDiagnostics.filter(Boolean),
cause: errorDiagnostic(cause),
};
}
function formatNativeDiagnostics(diagnostics) {
const sections = [
`module=${diagnostics.moduleName}`,
`reason=${diagnostics.reason}`,
`target=${diagnostics.target.platform}/${diagnostics.target.arch}`,
`packageDir=${diagnostics.packageDir || '<unknown>'}`,
`nativeRoot=${diagnostics.nativeRoot || '<unknown>'}`,
`nativePath=${diagnostics.nativePath || '<unknown>'}`,
`nativeFile=${diagnostics.nativeFile || '<unknown>'}`,
`nativeFileStat=${formatFileDiagnostic(diagnostics.nativeFileStat)}`,
`runtime:\n${formatRuntimeDiagnostics(diagnostics.runtime)}`,
`environment:\n${formatEnvironment(diagnostics.environment)}`,
`nativeRootEntries:\n${formatDirectoryDiagnostic(diagnostics.nativeRootEntries)}`,
...diagnostics.extraDiagnostics.map(formatExtraDiagnostic).filter(Boolean),
];
const dependencyOutput = formatDependencyProbe(diagnostics.dependencyProbe);
if (dependencyOutput) sections.push(`dependencyProbe:\n${dependencyOutput}`);
const causeText = formatErrorDiagnostic(diagnostics.cause);
if (causeText) sections.push(`cause:\n${causeText}`);
return sections.join('\n');
}
function isNativeLoadError(error) {
return Boolean(error?.[NATIVE_LOAD_ERROR_MARKER]);
}
function createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics = [],
}) {
if (isNativeLoadError(cause)) return cause;
const diagnostics = collectNativeDiagnostics({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics,
});
const error = new Error(`${moduleName} native module failed to load.\n${formatNativeDiagnostics(diagnostics)}`);
error.name = 'NativeModuleLoadError';
error[NATIVE_LOAD_ERROR_MARKER] = true;
error.nativeDiagnostics = diagnostics;
error.toJSON = () => ({
name: error.name,
message: error.message,
nativeDiagnostics: diagnostics,
});
if (cause) error.cause = cause;
return error;
}
function probeNativeBinary({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv, timeoutMs = 5000}) {
if (!skipNativeProbeEnv || process.env[skipNativeProbeEnv] === '1') {
return null;
}
const result = spawnSync(process.execPath, ['-e', 'require(process.argv[1])', nativePath], {
env: {...process.env, ELECTRON_RUN_AS_NODE: '1', [skipNativeProbeEnv]: '1'},
encoding: 'utf8',
stdio: ['ignore', 'pipe', 'pipe'],
timeout: timeoutMs,
});
if (result.status === 0) return null;
const reason = result.error
? result.error.message
: result.signal
? `safety probe terminated by signal ${result.signal}`
: `safety probe exited with code ${result.status}`;
return createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
skipNativeProbeEnv,
extraDiagnostics: [
result.stdout ? {name: 'probeStdout', text: trimText(result.stdout)} : null,
result.stderr ? {name: 'probeStderr', text: trimText(result.stderr)} : null,
],
});
}
function loadNativeBinding({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv, probe = true}) {
if (!existsSync(nativePath)) {
return {
binding: null,
loadError: createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason: 'native binary not found',
skipNativeProbeEnv,
}),
};
}
const nativeProbeError = probe
? probeNativeBinary({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv})
: null;
if (nativeProbeError) {
return {binding: null, loadError: nativeProbeError};
}
try {
return {binding: require(nativePath), loadError: null};
} catch (error) {
return {
binding: null,
loadError: createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason: 'require(nativePath) threw',
cause: error,
skipNativeProbeEnv,
}),
};
}
}
module.exports = {
collectNativeDiagnostics,
createNativeLoadError,
formatNativeDiagnostics,
isNativeLoadError,
loadNativeBinding,
probeNativeBinary,
};
@@ -0,0 +1,29 @@
{
"name": "@fluxer/windows-input-hook",
"version": "0.0.0",
"description": "",
"private": true,
"license": "AGPL-3.0-or-later",
"os": [
"win32"
],
"cpu": [
"x64",
"arm64"
],
"main": "index.js",
"types": "index.d.ts",
"files": [
"index.js",
"index.d.ts",
"loader-diagnostics.cjs",
"windows-input-hook.win32-x64-msvc.node",
"windows-input-hook.win32-arm64-msvc.node"
],
"scripts": {
"build": "cargo run --locked --quiet --manifest-path ../../../tools/ci/Cargo.toml -- build-desktop-native-addon",
"test": "cargo test --manifest-path Cargo.toml",
"check:windows:x64": "cargo check --manifest-path Cargo.toml --target x86_64-pc-windows-msvc --tests",
"check:windows:arm64": "cargo check --manifest-path Cargo.toml --target aarch64-pc-windows-msvc --tests"
}
}
@@ -0,0 +1,811 @@
#![cfg_attr(not(target_os = "windows"), allow(dead_code))]
// SPDX-License-Identifier: AGPL-3.0-or-later
use napi::{
Env,
bindgen_prelude::{Function, Object, Result, ToNapiValue},
sys,
threadsafe_function::{ThreadsafeFunction, UnknownReturnValue},
};
use napi_derive::napi;
const RING_CAPACITY: usize = 1024;
const KEY_NAME_BUF: usize = 32;
const LLKHF_EXTENDED_FLAG: u32 = 0x01;
#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
pub enum EventKind {
KeyDown,
KeyUp,
MouseDown,
MouseUp,
#[default]
MouseMove,
Wheel,
}
impl EventKind {
fn as_str(self) -> &'static str {
match self {
Self::KeyDown => "keydown",
Self::KeyUp => "keyup",
Self::MouseDown => "mousedown",
Self::MouseUp => "mouseup",
Self::MouseMove => "mousemove",
Self::Wheel => "wheel",
}
}
}
#[derive(Debug, Clone, Copy, Default)]
pub struct QueuedEvent {
pub kind: EventKind,
pub keycode: u32,
pub button: u8,
pub delta_x: i32,
pub delta_y: i32,
pub x: i32,
pub y: i32,
pub has_xy: bool,
pub key_name_buf: [u8; KEY_NAME_BUF],
pub key_name_len: u8,
pub ctrl: bool,
pub alt: bool,
pub shift: bool,
pub meta: bool,
}
impl QueuedEvent {
fn key_name(&self) -> &str {
let len = (self.key_name_len as usize).min(KEY_NAME_BUF);
std::str::from_utf8(&self.key_name_buf[..len]).unwrap_or("")
}
}
fn write_ascii_key_name(buf: &mut [u8; KEY_NAME_BUF], len_out: &mut u8, name: &str) {
let bytes = name.as_bytes();
let n = bytes.len().min(KEY_NAME_BUF);
buf[..n].copy_from_slice(&bytes[..n]);
*len_out = n as u8;
}
fn scan_aware_key_name(vk: u16, flags: u32) -> Option<&'static str> {
let extended = (flags & LLKHF_EXTENDED_FLAG) != 0;
match (vk, extended) {
(0x0d, true) => Some("NumpadEnter"),
(0x2d, false) => Some("Numpad0"),
(0x23, false) => Some("Numpad1"),
(0x28, false) => Some("Numpad2"),
(0x22, false) => Some("Numpad3"),
(0x25, false) => Some("Numpad4"),
(0x0c, false) => Some("Numpad5"),
(0x27, false) => Some("Numpad6"),
(0x24, false) => Some("Numpad7"),
(0x26, false) => Some("Numpad8"),
(0x21, false) => Some("Numpad9"),
(0x2e, false) => Some("NumpadDecimal"),
_ => None,
}
}
pub fn write_key_name(buf: &mut [u8; KEY_NAME_BUF], len_out: &mut u8, vk: u16) {
use fluxer_desktop_native::input::keymap::{fallback_name, windows::vk_to_name};
if let Some(name) = vk_to_name(vk) {
write_ascii_key_name(buf, len_out, name);
} else {
write_ascii_key_name(buf, len_out, &fallback_name(vk));
}
}
pub fn write_key_name_from_hook(
buf: &mut [u8; KEY_NAME_BUF],
len_out: &mut u8,
vk: u16,
flags: u32,
) {
if let Some(name) = scan_aware_key_name(vk, flags) {
write_ascii_key_name(buf, len_out, name);
return;
}
write_key_name(buf, len_out, vk);
}
impl ToNapiValue for QueuedEvent {
unsafe fn to_napi_value(raw_env: sys::napi_env, event: Self) -> Result<sys::napi_value> {
let env = Env::from_raw(raw_env);
let mut object = Object::new(&env)?;
object.set("type", event.kind.as_str())?;
object.set("ctrlKey", event.ctrl)?;
object.set("altKey", event.alt)?;
object.set("shiftKey", event.shift)?;
object.set("metaKey", event.meta)?;
match event.kind {
EventKind::KeyDown | EventKind::KeyUp => {
object.set("keycode", event.keycode)?;
object.set("keyName", event.key_name())?;
}
EventKind::MouseDown | EventKind::MouseUp => {
object.set("button", u32::from(event.button))?;
if event.has_xy {
object.set("x", event.x)?;
object.set("y", event.y)?;
}
}
EventKind::MouseMove => {
object.set("x", event.x)?;
object.set("y", event.y)?;
}
EventKind::Wheel => {
object.set("deltaX", event.delta_x)?;
object.set("deltaY", event.delta_y)?;
if event.has_xy {
object.set("x", event.x)?;
object.set("y", event.y)?;
}
}
}
unsafe { <Object<'_> as ToNapiValue>::to_napi_value(raw_env, object) }
}
}
type EventThreadsafeFunction = ThreadsafeFunction<
QueuedEvent,
UnknownReturnValue,
QueuedEvent,
napi::Status,
false,
true,
RING_CAPACITY,
>;
#[cfg(target_os = "windows")]
mod platform {
use super::{EventKind, EventThreadsafeFunction, QueuedEvent, write_key_name_from_hook};
use napi::threadsafe_function::ThreadsafeFunctionCallMode;
use std::sync::{
Arc, Mutex, MutexGuard, OnceLock,
atomic::{AtomicBool, AtomicI32, AtomicU64, Ordering},
mpsc,
};
use std::thread::{self, JoinHandle};
use std::time::Duration;
use windows::Win32::Foundation::{LPARAM, LRESULT, POINT, WPARAM};
use windows::Win32::System::LibraryLoader::GetModuleHandleW;
use windows::Win32::UI::Input::KeyboardAndMouse::{
GetKeyState, GetKeyboardLayout, MAPVK_VSC_TO_VK_EX, MapVirtualKeyExW, VK_CONTROL, VK_LWIN,
VK_MENU, VK_RWIN, VK_SHIFT,
};
use windows::Win32::UI::WindowsAndMessaging::{
CallNextHookEx, DispatchMessageW, GetCursorPos, GetForegroundWindow, GetMessageW,
GetWindowThreadProcessId, HHOOK, KBDLLHOOKSTRUCT, MSG, MSLLHOOKSTRUCT, PM_NOREMOVE,
PeekMessageW, PostThreadMessageW, SetWindowsHookExW, TranslateMessage, UnhookWindowsHookEx,
WH_KEYBOARD_LL, WH_MOUSE_LL, WM_APP, WM_KEYDOWN, WM_KEYUP, WM_QUIT, WM_SYSKEYDOWN,
WM_SYSKEYUP,
};
const WATCHDOG_INTERVAL_MS: u64 = 1000;
const WATCHDOG_TIMEOUT_MS: u64 = 5000;
const WM_APP_REINSTALL: u32 = WM_APP + 1;
pub(crate) struct HookHandle {
pub(crate) tsfn: EventThreadsafeFunction,
pub(crate) dropped_events: AtomicU64,
pub(crate) keyboard_hook: Mutex<Option<HHOOK>>,
pub(crate) mouse_hook: Mutex<Option<HHOOK>>,
pub(crate) thread_id: AtomicU64,
pub(crate) started: AtomicBool,
pub(crate) watchdog_stop: AtomicBool,
pub(crate) worker_thread: Mutex<Option<JoinHandle<()>>>,
pub(crate) watchdog_thread: Mutex<Option<JoinHandle<()>>>,
pub(crate) last_cursor_x: AtomicI32,
pub(crate) last_cursor_y: AtomicI32,
pub(crate) last_event_ms: AtomicU64,
pub(crate) last_cursor_change_ms: AtomicU64,
pub(crate) reinstall_count: AtomicU64,
}
unsafe impl Send for HookHandle {}
unsafe impl Sync for HookHandle {}
static G_HANDLE: OnceLock<Mutex<Option<Arc<HookHandle>>>> = OnceLock::new();
fn handle_slot() -> &'static Mutex<Option<Arc<HookHandle>>> {
G_HANDLE.get_or_init(|| Mutex::new(None))
}
fn lock_recover<T>(mutex: &Mutex<T>) -> MutexGuard<'_, T> {
mutex
.lock()
.unwrap_or_else(|poisoned| poisoned.into_inner())
}
fn current_handle() -> Option<Arc<HookHandle>> {
lock_recover(handle_slot()).clone()
}
fn clear_handle_slot(handle: &HookHandle) {
let mut slot = lock_recover(handle_slot());
if let Some(existing) = slot.as_ref()
&& std::ptr::eq(existing.as_ref(), handle)
{
*slot = None;
}
}
fn now_ms() -> u64 {
unsafe { windows::Win32::System::SystemInformation::GetTickCount64() }
}
fn sample_modifiers() -> (bool, bool, bool, bool) {
use fluxer_desktop_native::input::modifiers::windows::from_sampled;
unsafe {
let m = from_sampled(
GetKeyState(VK_SHIFT.0 as i32) as u16,
GetKeyState(VK_CONTROL.0 as i32) as u16,
GetKeyState(VK_MENU.0 as i32) as u16,
GetKeyState(VK_LWIN.0 as i32) as u16,
GetKeyState(VK_RWIN.0 as i32) as u16,
);
(m.ctrl, m.alt, m.shift, m.meta)
}
}
fn foreground_keyboard_thread_id() -> u32 {
let hwnd = unsafe { GetForegroundWindow() };
if hwnd.0.is_null() {
return 0;
}
unsafe { GetWindowThreadProcessId(hwnd, None) }
}
fn layout_aware_vk_from_scan_code(fallback_vk: u16, scan_code: u32, flags: u32) -> u16 {
let mut scan = scan_code;
if (flags & super::LLKHF_EXTENDED_FLAG) != 0 {
scan |= 0xe000;
}
let layout = unsafe { GetKeyboardLayout(foreground_keyboard_thread_id()) };
let mapped = unsafe { MapVirtualKeyExW(scan, MAPVK_VSC_TO_VK_EX, Some(layout)) };
if mapped == 0 {
fallback_vk
} else {
mapped as u16
}
}
fn enqueue(handle: &HookHandle, event: QueuedEvent) {
handle.last_event_ms.store(now_ms(), Ordering::Release);
let status = handle
.tsfn
.call(event, ThreadsafeFunctionCallMode::NonBlocking);
if !matches!(status, napi::Status::Ok) {
handle.dropped_events.fetch_add(1, Ordering::Relaxed);
}
}
unsafe extern "system" fn keyboard_proc(code: i32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
if code >= 0
&& let Some(handle) = current_handle()
{
let info = unsafe { &*(lparam.0 as *const KBDLLHOOKSTRUCT) };
let vk = info.vkCode as u16;
let msg = wparam.0 as u32;
let is_down = msg == WM_KEYDOWN || msg == WM_SYSKEYDOWN;
let is_up = msg == WM_KEYUP || msg == WM_SYSKEYUP;
if is_down || is_up {
let (ctrl, alt, shift, meta) = sample_modifiers();
let mut event = QueuedEvent {
kind: if is_down {
EventKind::KeyDown
} else {
EventKind::KeyUp
},
keycode: info.vkCode,
ctrl,
alt,
shift,
meta,
..QueuedEvent::default()
};
let layout_vk = layout_aware_vk_from_scan_code(vk, info.scanCode, info.flags.0);
write_key_name_from_hook(
&mut event.key_name_buf,
&mut event.key_name_len,
layout_vk,
info.flags.0,
);
enqueue(&handle, event);
}
}
unsafe { CallNextHookEx(None, code, wparam, lparam) }
}
unsafe extern "system" fn mouse_proc(code: i32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
use fluxer_desktop_native::input::windows_mouse::{Action, Axis, classify};
if code >= 0
&& let Some(handle) = current_handle()
{
let info = unsafe { &*(lparam.0 as *const MSLLHOOKSTRUCT) };
let md = info.mouseData;
let x_button = ((md >> 16) & 0xffff) as u16;
let wheel_delta = ((md >> 16) & 0xffff) as i16;
let (ctrl, alt, shift, meta) = sample_modifiers();
let action = classify(wparam.0 as u32, x_button, wheel_delta);
match action {
Action::Button { down, button } => {
enqueue(
&handle,
QueuedEvent {
kind: if down {
EventKind::MouseDown
} else {
EventKind::MouseUp
},
button,
x: info.pt.x,
y: info.pt.y,
has_xy: true,
ctrl,
alt,
shift,
meta,
..QueuedEvent::default()
},
);
}
Action::Move => {
enqueue(
&handle,
QueuedEvent {
kind: EventKind::MouseMove,
x: info.pt.x,
y: info.pt.y,
has_xy: true,
ctrl,
alt,
shift,
meta,
..QueuedEvent::default()
},
);
}
Action::Wheel { axis, delta } => {
let (dx, dy) = match axis {
Axis::Horizontal => (i32::from(delta), 0),
Axis::Vertical => (0, i32::from(delta)),
};
enqueue(
&handle,
QueuedEvent {
kind: EventKind::Wheel,
delta_x: dx,
delta_y: dy,
x: info.pt.x,
y: info.pt.y,
has_xy: true,
ctrl,
alt,
shift,
meta,
..QueuedEvent::default()
},
);
}
Action::Ignored => {}
}
}
unsafe { CallNextHookEx(None, code, wparam, lparam) }
}
fn install_hooks(handle: &HookHandle) -> Result<(), String> {
unsafe {
let hmod =
GetModuleHandleW(None).map_err(|err| format!("GetModuleHandleW failed: {err}"))?;
let mut kbd = lock_recover(&handle.keyboard_hook);
if kbd.is_none() {
let hook =
SetWindowsHookExW(WH_KEYBOARD_LL, Some(keyboard_proc), Some(hmod.into()), 0)
.map_err(|err| format!("SetWindowsHookExW keyboard failed: {err}"))?;
*kbd = Some(hook);
}
drop(kbd);
let mut mouse = lock_recover(&handle.mouse_hook);
if mouse.is_none() {
let hook = SetWindowsHookExW(WH_MOUSE_LL, Some(mouse_proc), Some(hmod.into()), 0)
.map_err(|err| format!("SetWindowsHookExW mouse failed: {err}"))?;
*mouse = Some(hook);
}
}
Ok(())
}
fn uninstall_hooks(handle: &HookHandle) {
if let Some(hook) = lock_recover(&handle.keyboard_hook).take() {
let _ = unsafe { UnhookWindowsHookEx(hook) };
}
if let Some(hook) = lock_recover(&handle.mouse_hook).take() {
let _ = unsafe { UnhookWindowsHookEx(hook) };
}
}
fn worker_main(handle: Arc<HookHandle>, ready: mpsc::Sender<Result<(), String>>) {
unsafe {
let mut msg = MSG::default();
let _ = PeekMessageW(
&mut msg,
None,
WM_APP_REINSTALL,
WM_APP_REINSTALL,
PM_NOREMOVE,
);
}
handle.thread_id.store(
u64::from(unsafe { windows::Win32::System::Threading::GetCurrentThreadId() }),
Ordering::Release,
);
if let Err(err) = install_hooks(&handle) {
uninstall_hooks(&handle);
handle.thread_id.store(0, Ordering::Release);
let _ = ready.send(Err(err));
return;
}
handle.last_event_ms.store(now_ms(), Ordering::Release);
let _ = ready.send(Ok(()));
let mut msg = MSG::default();
loop {
let got = unsafe { GetMessageW(&mut msg, None, 0, 0) };
if got.0 <= 0 {
break;
}
if msg.message == WM_APP_REINSTALL {
uninstall_hooks(&handle);
if install_hooks(&handle).is_ok() {
handle.last_event_ms.store(now_ms(), Ordering::Release);
handle.reinstall_count.fetch_add(1, Ordering::Relaxed);
} else {
uninstall_hooks(&handle);
handle.last_event_ms.store(now_ms(), Ordering::Release);
}
continue;
}
unsafe {
let _ = TranslateMessage(&msg);
DispatchMessageW(&msg);
}
}
uninstall_hooks(&handle);
handle.thread_id.store(0, Ordering::Release);
}
fn watchdog_main(handle: Arc<HookHandle>) {
while !handle.watchdog_stop.load(Ordering::Acquire) {
thread::sleep(Duration::from_millis(WATCHDOG_INTERVAL_MS));
if handle.watchdog_stop.load(Ordering::Acquire) {
break;
}
let mut pt = POINT::default();
if unsafe { GetCursorPos(&mut pt) }.is_err() {
continue;
}
let now = now_ms();
let lx = handle.last_cursor_x.load(Ordering::Relaxed);
let ly = handle.last_cursor_y.load(Ordering::Relaxed);
if pt.x != lx || pt.y != ly {
handle.last_cursor_x.store(pt.x, Ordering::Relaxed);
handle.last_cursor_y.store(pt.y, Ordering::Relaxed);
handle.last_cursor_change_ms.store(now, Ordering::Release);
}
let last_event = handle.last_event_ms.load(Ordering::Acquire);
let last_cursor_change = handle.last_cursor_change_ms.load(Ordering::Acquire);
if last_cursor_change > last_event && now.wrapping_sub(last_event) > WATCHDOG_TIMEOUT_MS
{
let tid = handle.thread_id.load(Ordering::Acquire) as u32;
if tid != 0 {
unsafe {
let _ = PostThreadMessageW(tid, WM_APP_REINSTALL, WPARAM(0), LPARAM(0));
}
handle.last_event_ms.store(now, Ordering::Release);
}
}
}
}
pub(crate) fn start(handle: Arc<HookHandle>) -> Result<(), String> {
let mut slot = lock_recover(handle_slot());
if let Some(existing) = slot.as_ref()
&& !Arc::ptr_eq(existing, &handle)
{
return Err("another InputHook is already active".to_owned());
}
if handle.started.swap(true, Ordering::AcqRel) {
return Ok(());
}
*slot = Some(handle.clone());
drop(slot);
handle.watchdog_stop.store(false, Ordering::Release);
let now = now_ms();
handle.last_event_ms.store(now, Ordering::Release);
handle.last_cursor_change_ms.store(now, Ordering::Release);
let mut pt = POINT::default();
if unsafe { GetCursorPos(&mut pt) }.is_ok() {
handle.last_cursor_x.store(pt.x, Ordering::Relaxed);
handle.last_cursor_y.store(pt.y, Ordering::Relaxed);
}
let (ready_tx, ready_rx) = mpsc::channel();
let worker = {
let h = handle.clone();
match thread::Builder::new()
.name("fluxer-input-hook-worker".into())
.spawn(move || worker_main(h, ready_tx))
{
Ok(worker) => worker,
Err(_) => {
handle.started.store(false, Ordering::Release);
clear_handle_slot(&handle);
return Err("failed to spawn worker thread".to_owned());
}
}
};
match ready_rx.recv() {
Ok(Ok(())) => {}
Ok(Err(err)) => {
handle.started.store(false, Ordering::Release);
handle.thread_id.store(0, Ordering::Release);
clear_handle_slot(&handle);
let _ = worker.join();
return Err(err);
}
Err(_) => {
handle.started.store(false, Ordering::Release);
handle.thread_id.store(0, Ordering::Release);
clear_handle_slot(&handle);
let _ = worker.join();
return Err("worker thread exited before installing hooks".to_owned());
}
}
*lock_recover(&handle.worker_thread) = Some(worker);
let watchdog = {
let h = handle.clone();
match thread::Builder::new()
.name("fluxer-input-hook-watchdog".into())
.spawn(move || watchdog_main(h))
{
Ok(watchdog) => watchdog,
Err(_) => {
stop(&handle);
return Err("failed to spawn watchdog thread".to_owned());
}
}
};
*lock_recover(&handle.watchdog_thread) = Some(watchdog);
Ok(())
}
pub(crate) fn stop(handle: &HookHandle) {
if !handle.started.swap(false, Ordering::AcqRel) {
return;
}
handle.watchdog_stop.store(true, Ordering::Release);
let tid = handle.thread_id.swap(0, Ordering::AcqRel) as u32;
if tid != 0 {
unsafe {
let _ = PostThreadMessageW(tid, WM_QUIT, WPARAM(0), LPARAM(0));
}
}
if let Some(t) = lock_recover(&handle.worker_thread).take() {
let _ = t.join();
}
if let Some(t) = lock_recover(&handle.watchdog_thread).take() {
let _ = t.join();
}
clear_handle_slot(handle);
}
pub(crate) fn new_handle(tsfn: EventThreadsafeFunction) -> Arc<HookHandle> {
Arc::new(HookHandle {
tsfn,
dropped_events: AtomicU64::new(0),
keyboard_hook: Mutex::new(None),
mouse_hook: Mutex::new(None),
thread_id: AtomicU64::new(0),
started: AtomicBool::new(false),
watchdog_stop: AtomicBool::new(false),
worker_thread: Mutex::new(None),
watchdog_thread: Mutex::new(None),
last_cursor_x: AtomicI32::new(0),
last_cursor_y: AtomicI32::new(0),
last_event_ms: AtomicU64::new(0),
last_cursor_change_ms: AtomicU64::new(0),
reinstall_count: AtomicU64::new(0),
})
}
}
#[cfg(not(target_os = "windows"))]
mod platform {
use super::EventThreadsafeFunction;
use std::sync::Arc;
use std::sync::atomic::AtomicU64;
pub(crate) struct HookHandle {
pub(crate) tsfn: EventThreadsafeFunction,
pub(crate) dropped_events: AtomicU64,
pub(crate) reinstall_count: AtomicU64,
}
pub(crate) fn new_handle(tsfn: EventThreadsafeFunction) -> Arc<HookHandle> {
Arc::new(HookHandle {
tsfn,
dropped_events: AtomicU64::new(0),
reinstall_count: AtomicU64::new(0),
})
}
pub(crate) fn start(_handle: Arc<HookHandle>) -> Result<(), String> {
Err("windows-input-hook is only supported on Windows".to_owned())
}
pub(crate) fn stop(_handle: &HookHandle) {}
}
use platform::HookHandle;
#[napi]
pub struct InputHook {
inner: std::sync::Arc<HookHandle>,
}
#[napi]
impl InputHook {
#[napi(constructor)]
pub fn new(callback: Function<QueuedEvent, UnknownReturnValue>) -> Result<Self> {
let tsfn: EventThreadsafeFunction = callback
.build_threadsafe_function::<QueuedEvent>()
.weak::<true>()
.callee_handled::<false>()
.max_queue_size::<RING_CAPACITY>()
.build()
.map_err(|err| {
napi::Error::new(
napi::Status::GenericFailure,
format!("failed to create InputHook callback: {}", err.reason),
)
})?;
Ok(Self {
inner: platform::new_handle(tsfn),
})
}
#[napi]
pub fn start(&self) -> Result<()> {
platform::start(self.inner.clone()).map_err(|msg| {
napi::Error::new(
napi::Status::GenericFailure,
format!("InputHook.start failed: {msg}"),
)
})
}
#[napi]
pub fn stop(&self) {
platform::stop(&self.inner);
}
#[napi(getter, js_name = "droppedEvents")]
pub fn dropped_events(&self) -> f64 {
self.inner
.dropped_events
.load(std::sync::atomic::Ordering::Relaxed) as f64
}
#[napi(getter, js_name = "reinstallCount")]
pub fn reinstall_count(&self) -> f64 {
self.inner
.reinstall_count
.load(std::sync::atomic::Ordering::Relaxed) as f64
}
}
impl Drop for InputHook {
fn drop(&mut self) {
platform::stop(&self.inner);
}
}
#[napi(js_name = "isAvailable")]
pub fn is_available() -> bool {
cfg!(target_os = "windows")
}
#[cfg(test)]
mod tests {
use super::*;
use fluxer_desktop_native::input::ring::Ring;
#[test]
fn write_key_name_known_vk() {
let mut buf = [0u8; KEY_NAME_BUF];
let mut len = 0u8;
write_key_name(&mut buf, &mut len, 0x41);
assert_eq!(&buf[..len as usize], b"A");
}
#[test]
fn write_key_name_function_keys() {
let mut buf = [0u8; KEY_NAME_BUF];
let mut len = 0u8;
write_key_name(&mut buf, &mut len, 0x7b);
assert_eq!(&buf[..len as usize], b"F12");
}
#[test]
fn write_key_name_from_hook_distinguishes_keypad_navigation() {
let mut buf = [0u8; KEY_NAME_BUF];
let mut len = 0u8;
write_key_name_from_hook(&mut buf, &mut len, 0x2d, 0);
assert_eq!(&buf[..len as usize], b"Numpad0");
buf = [0u8; KEY_NAME_BUF];
len = 0;
write_key_name_from_hook(&mut buf, &mut len, 0x2d, LLKHF_EXTENDED_FLAG);
assert_eq!(&buf[..len as usize], b"Insert");
buf = [0u8; KEY_NAME_BUF];
len = 0;
write_key_name_from_hook(&mut buf, &mut len, 0x0d, LLKHF_EXTENDED_FLAG);
assert_eq!(&buf[..len as usize], b"NumpadEnter");
}
#[test]
fn write_key_name_fallback() {
let mut buf = [0u8; KEY_NAME_BUF];
let mut len = 0u8;
write_key_name(&mut buf, &mut len, 0x0fff);
assert_eq!(&buf[..len as usize], b"Key4095");
}
#[test]
fn queued_event_default_is_mouse_move_kind() {
let event = QueuedEvent::default();
assert_eq!(event.kind, EventKind::MouseMove);
assert_eq!(event.key_name_len, 0);
}
#[test]
fn event_kind_strings_match_contract() {
assert_eq!(EventKind::KeyDown.as_str(), "keydown");
assert_eq!(EventKind::KeyUp.as_str(), "keyup");
assert_eq!(EventKind::MouseDown.as_str(), "mousedown");
assert_eq!(EventKind::MouseUp.as_str(), "mouseup");
assert_eq!(EventKind::MouseMove.as_str(), "mousemove");
assert_eq!(EventKind::Wheel.as_str(), "wheel");
}
#[test]
fn is_available_matches_target() {
assert_eq!(is_available(), cfg!(target_os = "windows"));
}
#[test]
fn ring_holds_queued_events() {
let ring: Ring<QueuedEvent, 4> = Ring::new();
let idx = ring.claim().expect("claim slot") as usize;
unsafe {
let slots = ring.slots.as_ptr() as *mut QueuedEvent;
(*slots.add(idx)).kind = EventKind::Wheel;
(*slots.add(idx)).delta_y = 120;
}
let pop_idx = ring.pop().expect("pop slot") as usize;
assert_eq!(ring.slots[pop_idx].kind, EventKind::Wheel);
assert_eq!(ring.slots[pop_idx].delta_y, 120);
ring.release();
assert!(ring.pop().is_none());
}
}