🌱 监听&获取文本缩放

#192

src-tauri/Cargo.lock

@@ -30,7 +30,9 @@ dependencies = [
  "tauri-utils",
  "url",
  "walkdir",
+ "widestring",
  "windows-sys 0.61.2",
+ "winreg",
 ]
 
 [[package]]
@@ -7319,6 +7321,12 @@ dependencies = [
  "wasite",
 ]
 
+[[package]]
+name = "widestring"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72069c3113ab32ab29e5584db3c6ec55d416895e60715417b5b883a357c3e471"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"

src-tauri/Cargo.toml

@@ -32,7 +32,10 @@ tauri = { version = "2.9.5", features = ["tray-icon"] }
 tauri-utils = "2.8.1"
 url = "2.5.7"
 walkdir = "2.5.0"
+widestring = "1.2.1"
 
+[target.'cfg(windows)'.dependencies.winreg]
+version = "0.55.0"
 [target.'cfg(windows)'.dependencies.windows-sys]
 version = "0.61.2"
 features = [

src-tauri/src/commands.rs

@@ -1,6 +1,7 @@
 // 命令模块，负责处理命令
 // @since Beta v0.9.1
 
+use crate::utils;
 use tauri::{AppHandle, Emitter, Manager, WebviewWindowBuilder};
 use tauri_utils::config::{WebviewUrl, WindowConfig};
 
@@ -136,3 +137,10 @@ pub async fn quit_app(app_handle: AppHandle) {
   // 退出应用
   app_handle.exit(0);
 }
+
+/// 获取当前系统的文本缩放比例（TextScaleFactor）
+/// 返回值示例：1.0 表示 100%，1.25 表示 125%
+#[tauri::command]
+pub fn read_text_scale() -> Result<f64, String> {
+  utils::read_text_scale_factor()
+}

src-tauri/src/lib.rs

@@ -1,5 +1,5 @@
 //! 主模块，用于启动应用
-//! @since Beta v0.8.8
+//! @since Beta v0.9.1
 
 mod client;
 mod commands;
@@ -14,8 +14,8 @@ mod yae;
 use crate::client::create_mhy_client;
 use crate::commands::{
   create_window, execute_js, get_dir_size, hide_main_window, init_app, is_in_admin, quit_app,
+  read_text_scale,
 };
-use crate::plugins::{build_log_plugin, build_si_plugin};
 use tauri::{generate_context, generate_handler, Emitter, Manager, Window, WindowEvent};
 
 // 子窗口 label 的数组
@@ -66,7 +66,11 @@ pub fn run() {
   let mut builder = tauri::Builder::default();
 
   // 只有在正常/管理员实例下才加载单例插件；看门狗不加载
-  builder = builder.plugin(build_si_plugin());
+  builder = builder.plugin(tauri_plugin_single_instance::init(move |app, argv, _cwd| {
+    if let Err(e) = app.emit("active_deep_link", argv) {
+      eprintln!("emit active_deep_link failed: {}", e);
+    }
+  }));
   builder
     .on_window_event(move |app, event| window_event_handler(app, event))
     .plugin(tauri_plugin_deep_link::init())
@@ -78,13 +82,14 @@ pub fn run() {
     .plugin(tauri_plugin_process::init())
     .plugin(tauri_plugin_shell::init())
     .plugin(tauri_plugin_sql::Builder::default().build())
-    .plugin(build_log_plugin())
+    .plugin(plugins::custom_log::build_log_plugin())
     .setup(|_app| {
       // 创建系统托盘图标
       tray::create_tray(_app.handle())
         .expect("Failed to initialize system tray icon. Please check if the tray icon file exists and the system supports tray icons.");
       let _window = _app.get_webview_window("TeyvatGuide");
       #[cfg(debug_assertions)]
+      plugins::text_scale::init(_app.handle().clone());
       if _window.is_some() {
         _window.unwrap().open_devtools();
       }
@@ -99,6 +104,7 @@ pub fn run() {
       is_in_admin,
       hide_main_window,
       quit_app,
+      read_text_scale,
       #[cfg(target_os = "windows")]
       yae::call_yae_dll,
       #[cfg(target_os = "windows")]

src-tauri/src/plugins.rs

@@ -1,48 +0,0 @@
-//! 插件模块，用于注册插件
-//! @since Beta v0.7.8
-
-use crate::utils::get_current_date;
-use log::LevelFilter;
-use tauri::plugin::TauriPlugin;
-use tauri::{Emitter, Runtime};
-use tauri_plugin_log::{Builder, Target, TargetKind, TimezoneStrategy};
-use tauri_plugin_single_instance::init;
-
-// 单例插件
-pub fn build_si_plugin<R: Runtime>() -> TauriPlugin<R> {
-  init(move |app, argv, _cwd| {
-    // 把 argv 转成 Vec<String>
-    //     let args: Vec<String> = argv.iter().map(|s| s.to_string()).collect();
-
-    // 如果包含提升约定参数，发出专门事件并短路退出
-    //     if args.iter().any(|a| a == "--elevated") {
-    // 提升实例通常只负责传参或执行一次性任务，退出避免与主实例冲突
-    //       std::process::exit(0);
-    //     }
-
-    // 非提升启动：按原逻辑广播 deep link
-    if let Err(e) = app.emit("active_deep_link", argv) {
-      eprintln!("emit active_deep_link failed: {}", e);
-    }
-
-    // 回调必须返回 unit，直接结束即可
-  })
-}
-
-// 日志插件
-pub fn build_log_plugin<R: Runtime>() -> TauriPlugin<R> {
-  #[cfg(debug_assertions)]
-  Builder::default()
-    .targets([Target::new(TargetKind::Webview)])
-    .timezone_strategy(TimezoneStrategy::UseLocal)
-    .level(LevelFilter::Debug)
-    .build::<R>();
-  Builder::default()
-    .targets([
-      Target::new(TargetKind::Webview),
-      Target::new(TargetKind::LogDir { file_name: get_current_date().into() }),
-    ])
-    .timezone_strategy(TimezoneStrategy::UseLocal)
-    .level(LevelFilter::Info)
-    .build::<R>()
-}

src-tauri/src/plugins/custom_log.rs

@@ -0,0 +1,34 @@
+// tauri-plugin-log 简单处理
+// @since Beta v0.9.1
+
+use chrono::DateTime;
+use log::LevelFilter;
+use std::time::SystemTime;
+use tauri::plugin::TauriPlugin;
+use tauri::Runtime;
+use tauri_plugin_log::{Builder, Target, TargetKind, TimezoneStrategy};
+
+// 获取当前日期 yyyy-mm-dd
+fn get_current_date() -> String {
+  let now = SystemTime::now();
+  let date_time = DateTime::<chrono::Local>::from(now);
+  let date = date_time.format("%Y-%m-%d").to_string();
+  return date;
+}
+
+pub fn build_log_plugin<R: Runtime>() -> TauriPlugin<R> {
+  #[cfg(debug_assertions)]
+  Builder::default()
+    .targets([Target::new(TargetKind::Webview)])
+    .timezone_strategy(TimezoneStrategy::UseLocal)
+    .level(LevelFilter::Debug)
+    .build::<R>();
+  Builder::default()
+    .targets([
+      Target::new(TargetKind::Webview),
+      Target::new(TargetKind::LogDir { file_name: get_current_date().into() }),
+    ])
+    .timezone_strategy(TimezoneStrategy::UseLocal)
+    .level(LevelFilter::Info)
+    .build::<R>()
+}

src-tauri/src/plugins/mod.rs

@@ -0,0 +1,5 @@
+// 插件
+// @since Beta v0.9.1
+
+pub mod custom_log;
+pub mod text_scale;

src-tauri/src/plugins/text_scale.rs

@@ -0,0 +1,43 @@
+// 监听系统文本放缩
+// @since Beta v0.9.1
+
+use crate::utils;
+use std::{thread, time::Duration};
+use tauri::{AppHandle, Emitter};
+use widestring::U16CString;
+use windows_sys::Win32::Foundation::ERROR_SUCCESS;
+use windows_sys::Win32::System::Registry::{
+  RegNotifyChangeKeyValue, RegOpenKeyExW, HKEY, HKEY_CURRENT_USER, KEY_NOTIFY, KEY_READ,
+  REG_NOTIFY_CHANGE_LAST_SET,
+};
+
+pub fn init(app: AppHandle) {
+  thread::spawn(move || unsafe {
+    let subkey = U16CString::from_str("Software\\Microsoft\\Accessibility").unwrap();
+    let mut hkey: HKEY = std::ptr::null_mut();
+
+    let status =
+      RegOpenKeyExW(HKEY_CURRENT_USER, subkey.as_ptr(), 0, KEY_READ | KEY_NOTIFY, &mut hkey);
+
+    if status != ERROR_SUCCESS {
+      eprintln!("❌ 无法打开注册表键: {}", status);
+      return;
+    }
+
+    loop {
+      let notify_status =
+        RegNotifyChangeKeyValue(hkey, 0, REG_NOTIFY_CHANGE_LAST_SET, std::ptr::null_mut(), 0);
+
+      if notify_status == ERROR_SUCCESS {
+        if let Ok(scale) = utils::read_text_scale_factor() {
+          let _ = app.emit("text_scale_change", scale);
+        }
+      } else {
+        eprintln!("❌ 注册表监听失败: {}", notify_status);
+        break;
+      }
+
+      thread::sleep(Duration::from_secs(1));
+    }
+  });
+}

src-tauri/src/utils.rs

@@ -1,14 +1,24 @@
-//! @file src/utils.rs
-//! @desc 工具模块，用于提供一些工具函数
-//! @since Beta v0.4.2
+// 杂项
+// @since Beta v0.9.1
 
-use chrono::DateTime;
-use std::time::SystemTime;
+/// 获取当前系统的文本缩放比例（TextScaleFactor）
+/// 返回值示例：1.0 表示 100%，1.25 表示 125%
+pub fn read_text_scale_factor() -> Result<f64, String> {
+  #[cfg(not(target_os = "windows"))]
+  {
+    Ok(1.0)
+  }
+  #[cfg(target_os = "windows")]
+  {
+    use winreg::enums::*;
+    use winreg::RegKey;
+    let hkcu = RegKey::predef(HKEY_CURRENT_USER);
+    let key = hkcu
+      .open_subkey("Software\\Microsoft\\Accessibility")
+      .map_err(|e| format!("无法打开注册表: {}", e))?;
 
-// 获取当前日期 yyyy-mm-dd
-pub fn get_current_date() -> String {
-  let now = SystemTime::now();
-  let date_time = DateTime::<chrono::Local>::from(now);
-  let date = date_time.format("%Y-%m-%d").to_string();
-  return date;
+    let value: u32 = key.get_value("TextScaleFactor").unwrap_or(100u32); // 默认值为 100%
+
+    Ok(value as f64 / 100.0)
+  }
 }