From 407c7d13c7e2d1105c840da143fd44981691ccb7 Mon Sep 17 00:00:00 2001
From: Wind-Explorer <windexplorer@outlook.com>
Date: Tue, 25 Nov 2025 12:06:01 +0800
Subject: [PATCH] cursor position on screen stream

---
 src-tauri/Cargo.lock             | 130 +++++++++++++++++++++++++++----
 src-tauri/Cargo.toml             |   2 +
 src-tauri/src/lib.rs             |   5 +-
 src-tauri/src/services/cursor.rs |  31 ++++++++
 src-tauri/src/services/mod.rs    |   1 +
 src/channels/cursor.ts           |  12 +++
 src/routes/+layout.ts            |   3 +
 src/routes/scene/+page.svelte    |  23 ++++--
 8 files changed, 185 insertions(+), 22 deletions(-)
 create mode 100644 src-tauri/src/services/cursor.rs
 create mode 100644 src/channels/cursor.ts

diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index bf15737..495adb2 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -679,6 +679,20 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "device_query"
+version = "4.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7331225604b9b097b41872d550134933d4be83465d70a2c4a132b929f99aaca"
+dependencies = [
+ "macos-accessibility-client",
+ "pkg-config",
+ "readkey",
+ "readmouse",
+ "windows 0.48.0",
+ "x11",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -707,7 +721,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -876,7 +890,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1002,6 +1016,8 @@ dependencies = [
 name = "friendolls-desktop"
 version = "0.1.0"
 dependencies = [
+ "device_query",
+ "once_cell",
  "reqwest",
  "serde",
  "serde_json",
@@ -2028,6 +2044,16 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
 
+[[package]]
+name = "macos-accessibility-client"
+version = "0.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "edf7710fbff50c24124331760978fb9086d6de6288dcdb38b25a97f8b1bdebbb"
+dependencies = [
+ "core-foundation 0.9.4",
+ "core-foundation-sys",
+]
+
 [[package]]
 name = "markup5ever"
 version = "0.14.1"
@@ -3050,6 +3076,18 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20675572f6f24e9e76ef639bc5552774ed45f1c30e2951e1e99c59888861c539"
 
+[[package]]
+name = "readkey"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a36870cefdfcff57edbc0fa62165f42dfd4e5a0d8965117c1ea84c5700e4450"
+
+[[package]]
+name = "readmouse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be105c72a1e6a5a1198acee3d5b506a15676b74a02ecd78060042a447f408d94"
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.18"
@@ -3195,7 +3233,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -3823,7 +3861,7 @@ dependencies = [
  "tao-macros",
  "unicode-segmentation",
  "url",
- "windows",
+ "windows 0.61.3",
  "windows-core",
  "windows-version",
  "x11-dl",
@@ -3894,7 +3932,7 @@ dependencies = [
  "webkit2gtk",
  "webview2-com",
  "window-vibrancy",
- "windows",
+ "windows 0.61.3",
 ]
 
 [[package]]
@@ -4010,7 +4048,7 @@ dependencies = [
  "tauri-plugin",
  "thiserror 2.0.17",
  "url",
- "windows",
+ "windows 0.61.3",
  "zbus",
 ]
 
@@ -4051,7 +4089,7 @@ dependencies = [
  "url",
  "webkit2gtk",
  "webview2-com",
- "windows",
+ "windows 0.61.3",
 ]
 
 [[package]]
@@ -4077,7 +4115,7 @@ dependencies = [
  "url",
  "webkit2gtk",
  "webview2-com",
- "windows",
+ "windows 0.61.3",
  "wry",
 ]
 
@@ -4140,7 +4178,7 @@ dependencies = [
  "getrandom 0.3.4",
  "once_cell",
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4878,7 +4916,7 @@ checksum = "d4ba622a989277ef3886dd5afb3e280e3dd6d974b766118950a08f8f678ad6a4"
 dependencies = [
  "webview2-com-macros",
  "webview2-com-sys",
- "windows",
+ "windows 0.61.3",
  "windows-core",
  "windows-implement",
  "windows-interface",
@@ -4902,7 +4940,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "36695906a1b53a3bf5c4289621efedac12b73eeb0b89e7e1a89b517302d5d75c"
 dependencies = [
  "thiserror 2.0.17",
- "windows",
+ "windows 0.61.3",
  "windows-core",
 ]
 
@@ -4928,7 +4966,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4952,6 +4990,15 @@ dependencies = [
  "windows-version",
 ]
 
+[[package]]
+name = "windows"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows"
 version = "0.61.3"
@@ -5131,6 +5178,21 @@ dependencies = [
  "windows_x86_64_msvc 0.42.2",
 ]
 
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.52.6"
@@ -5188,6 +5250,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
@@ -5206,6 +5274,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
@@ -5224,6 +5298,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -5254,6 +5334,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
@@ -5272,6 +5358,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
@@ -5290,6 +5382,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
@@ -5308,6 +5406,12 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
@@ -5399,7 +5503,7 @@ dependencies = [
  "webkit2gtk",
  "webkit2gtk-sys",
  "webview2-com",
- "windows",
+ "windows 0.61.3",
  "windows-core",
  "windows-version",
  "x11-dl",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 384d0fa..91d0187 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -27,6 +27,8 @@ tauri-plugin-global-shortcut = "2"
 tauri-plugin-positioner = "2"
 reqwest = { version = "0.12.23", features = ["json", "native-tls"] }
 ts-rs = "11.0.1"
+device_query = "4.0.1"
+once_cell = "1.21.3"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
 tauri-plugin-global-shortcut = "2"
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index ae8401e..eee5214 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -1,3 +1,5 @@
+use crate::services::cursor::stream_cursor_position;
+
 static APP_HANDLE: std::sync::OnceLock<tauri::AppHandle<tauri::Wry>> = std::sync::OnceLock::new();
 
 mod app;
@@ -35,8 +37,7 @@ pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
         .plugin(tauri_plugin_positioner::init())
-        // .plugin(tauri_plugin_global_shortcut::Builder::new().build())
-        .invoke_handler(tauri::generate_handler![])
+        .invoke_handler(tauri::generate_handler![stream_cursor_position])
         .setup(|app| {
             APP_HANDLE
                 .set(app.handle().to_owned())
diff --git a/src-tauri/src/services/cursor.rs b/src-tauri/src/services/cursor.rs
new file mode 100644
index 0000000..feecc7b
--- /dev/null
+++ b/src-tauri/src/services/cursor.rs
@@ -0,0 +1,31 @@
+use device_query::{DeviceEvents, DeviceEventsHandler};
+use serde::Serialize;
+use std::time::Duration;
+use tauri::ipc::Channel;
+
+#[derive(Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CursorPosition {
+    pub x: i32,
+    pub y: i32,
+}
+
+#[tauri::command]
+pub async fn stream_cursor_position(on_event: Channel<CursorPosition>) {
+    let device_state =
+        DeviceEventsHandler::new(Duration::from_millis(200)).expect("Failed to start event loop");
+
+    let _guard = device_state.on_mouse_move(move |position| {
+        let pos = CursorPosition {
+            x: position.0,
+            y: position.1,
+        };
+        // Ignore send error (e.g. frontend closed channel)
+        let _ = on_event.send(pos);
+    });
+
+    // Prevent function from exiting
+    loop {
+        tokio::time::sleep(Duration::ZERO).await;
+    }
+}
diff --git a/src-tauri/src/services/mod.rs b/src-tauri/src/services/mod.rs
index 2b55280..5fc87e1 100644
--- a/src-tauri/src/services/mod.rs
+++ b/src-tauri/src/services/mod.rs
@@ -1 +1,2 @@
+pub mod cursor;
 pub mod overlay;
diff --git a/src/channels/cursor.ts b/src/channels/cursor.ts
new file mode 100644
index 0000000..b85a475
--- /dev/null
+++ b/src/channels/cursor.ts
@@ -0,0 +1,12 @@
+import { Channel, invoke } from "@tauri-apps/api/core";
+import { writable } from "svelte/store";
+
+export let cursorPositionOnScreen = writable<{ x: number; y: number }>({ x: 0, y: 0 });
+
+export function initCursorPositionStream() {
+  const channel = new Channel<{ x: number; y: number }>();
+  channel.onmessage = (pos) => {
+    cursorPositionOnScreen.set(pos);
+  };
+  invoke("stream_cursor_position", { onEvent: channel });
+}
\ No newline at end of file
diff --git a/src/routes/+layout.ts b/src/routes/+layout.ts
index 1ab31d7..03aa6e6 100644
--- a/src/routes/+layout.ts
+++ b/src/routes/+layout.ts
@@ -4,3 +4,6 @@
 // See: https://v2.tauri.app/start/frontend/sveltekit/ for more info
 export const ssr = false;
 import "../app.css";
+import { initCursorPositionStream } from "../channels/cursor";
+
+initCursorPositionStream();
\ No newline at end of file
diff --git a/src/routes/scene/+page.svelte b/src/routes/scene/+page.svelte
index 5a12d32..ab1bd97 100644
--- a/src/routes/scene/+page.svelte
+++ b/src/routes/scene/+page.svelte
@@ -1,10 +1,19 @@
+<script lang="ts">
+  import { cursorPositionOnScreen } from "../../channels/cursor";
+</script>
+
 <div class="w-svw h-svh p-4">
-    <div
-        class="size-max mx-auto bg-base-100 border-base-200 border px-4 py-3 rounded-xl"
-    >
-        <div class="flex flex-col text-center">
-            <p class="text-xl">Friendolls</p>
-            <p class="text-sm opacity-50">Scene Screen</p>
-        </div>
+  <div
+    class="size-max mx-auto bg-base-100 border-base-200 border px-4 py-3 rounded-xl"
+  >
+    <div class="flex flex-col text-center">
+      <p class="text-xl">Friendolls</p>
+      <p class="text-sm opacity-50">Scene Screen</p>
+      <div class="mt-4">
+        <span class="font-mono"
+          >Cursor: ({$cursorPositionOnScreen.x}, {$cursorPositionOnScreen.y})</span
+        >
+      </div>
     </div>
+  </div>
 </div>