chore: fix some warnings on new rust version (#13965)

* chore: fix some warnings on new rust version

* No main

* allow dead code on specta Channel

crates/tauri-runtime-wry/src/lib.rs

@@ -2563,7 +2563,9 @@ impl<T: UserEvent> RuntimeHandle<T> for WryHandle<T> {
     send_user_message(&self.context, Message::Task(Box::new(f)))
   }
 
-  fn display_handle(&self) -> std::result::Result<DisplayHandle, raw_window_handle::HandleError> {
+  fn display_handle(
+    &self,
+  ) -> std::result::Result<DisplayHandle<'_>, raw_window_handle::HandleError> {
     self.context.main_thread.window_target.display_handle()
   }
 

crates/tauri-runtime/src/lib.rs

@@ -297,7 +297,9 @@ pub trait RuntimeHandle<T: UserEvent>: Debug + Clone + Send + Sync + Sized + 'st
   fn run_on_main_thread<F: FnOnce() + Send + 'static>(&self, f: F) -> Result<()>;
 
   /// Get a handle to the display controller of the windowing system.
-  fn display_handle(&self) -> std::result::Result<DisplayHandle, raw_window_handle::HandleError>;
+  fn display_handle(
+    &self,
+  ) -> std::result::Result<DisplayHandle<'_>, raw_window_handle::HandleError>;
 
   /// Returns the primary monitor of the system.
   ///

crates/tauri/src/event/plugin.rs

@@ -1,10 +1,8 @@
 // Copyright 2019-2024 Tauri Programme within The Commons Conservancy
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-License-Identifier: MIT
-use serde::{Deserialize, Deserializer};
 use serde_json::Value as JsonValue;
 use serialize_to_javascript::{default_template, DefaultTemplate, Template};
-use tauri_runtime::window::is_label_valid;
 
 use crate::plugin::{Builder, TauriPlugin};
 use crate::{command, ipc::CallbackFn, EventId, Result, Runtime};
@@ -13,30 +11,6 @@ use crate::{AppHandle, Emitter, Manager, Webview};
 use super::EventName;
 use super::EventTarget;
 
-pub struct WebviewLabel(String);
-
-impl AsRef<str> for WebviewLabel {
-  fn as_ref(&self) -> &str {
-    &self.0
-  }
-}
-
-impl<'de> Deserialize<'de> for WebviewLabel {
-  fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
-  where
-    D: Deserializer<'de>,
-  {
-    let event_id = String::deserialize(deserializer)?;
-    if is_label_valid(&event_id) {
-      Ok(WebviewLabel(event_id))
-    } else {
-      Err(serde::de::Error::custom(
-        "Webview label must include only alphanumeric characters, `-`, `/`, `:` and `_`.",
-      ))
-    }
-  }
-}
-
 #[command(root = "crate")]
 async fn listen<R: Runtime>(
   webview: Webview<R>,

crates/tauri/src/ipc/channel.rs

@@ -55,6 +55,7 @@ pub struct Channel<TSend = InvokeResponseBody> {
 const _: () = {
   #[derive(specta::Type)]
   #[specta(remote = super::Channel, rename = "TAURI_CHANNEL")]
+  #[allow(dead_code)]
   struct Channel<TSend>(std::marker::PhantomData<TSend>);
 };
 

crates/tauri/src/pattern.rs

@@ -9,6 +9,7 @@ use serde::Serialize;
 use serialize_to_javascript::{default_template, Template};
 
 /// The domain of the isolation iframe source.
+#[cfg(feature = "isolation")]
 pub const ISOLATION_IFRAME_SRC_DOMAIN: &str = "localhost";
 
 /// An application pattern.
@@ -62,6 +63,7 @@ impl From<&Pattern> for PatternObject {
 }
 
 /// Where the JavaScript is injected to
+#[cfg(feature = "isolation")]
 #[derive(Debug, Serialize)]
 #[serde(rename_all = "lowercase")]
 pub(crate) enum IsolationSide {
@@ -72,6 +74,7 @@ pub(crate) enum IsolationSide {
   Secure,
 }
 
+#[cfg(feature = "isolation")]
 impl Default for IsolationSide {
   fn default() -> Self {
     Self::Original

crates/tauri/src/webview/mod.rs

@@ -1351,48 +1351,46 @@ impl<R: Runtime> Webview<R> {
 ```rust,no_run
 use tauri::Manager;
 
-fn main() {
-  tauri::Builder::default()
-    .setup(|app| {
-      let main_webview = app.get_webview("main").unwrap();
-      main_webview.with_webview(|webview| {
-        #[cfg(target_os = "linux")]
-        {
-          // see <https://docs.rs/webkit2gtk/2.0.0/webkit2gtk/struct.WebView.html>
-          // and <https://docs.rs/webkit2gtk/2.0.0/webkit2gtk/trait.WebViewExt.html>
-          use webkit2gtk::WebViewExt;
-          webview.inner().set_zoom_level(4.);
-        }
+tauri::Builder::default()
+  .setup(|app| {
+    let main_webview = app.get_webview("main").unwrap();
+    main_webview.with_webview(|webview| {
+      #[cfg(target_os = "linux")]
+      {
+        // see <https://docs.rs/webkit2gtk/2.0.0/webkit2gtk/struct.WebView.html>
+        // and <https://docs.rs/webkit2gtk/2.0.0/webkit2gtk/trait.WebViewExt.html>
+        use webkit2gtk::WebViewExt;
+        webview.inner().set_zoom_level(4.);
+      }
 
-        #[cfg(windows)]
-        unsafe {
-          // see https://docs.rs/webview2-com/0.19.1/webview2_com/Microsoft/Web/WebView2/Win32/struct.ICoreWebView2Controller.html
-          webview.controller().SetZoomFactor(4.).unwrap();
-        }
+      #[cfg(windows)]
+      unsafe {
+        // see https://docs.rs/webview2-com/0.19.1/webview2_com/Microsoft/Web/WebView2/Win32/struct.ICoreWebView2Controller.html
+        webview.controller().SetZoomFactor(4.).unwrap();
+      }
 
-        #[cfg(target_os = "macos")]
-        unsafe {
-          let view: &objc2_web_kit::WKWebView = &*webview.inner().cast();
-          let controller: &objc2_web_kit::WKUserContentController = &*webview.controller().cast();
-          let window: &objc2_app_kit::NSWindow = &*webview.ns_window().cast();
+      #[cfg(target_os = "macos")]
+      unsafe {
+        let view: &objc2_web_kit::WKWebView = &*webview.inner().cast();
+        let controller: &objc2_web_kit::WKUserContentController = &*webview.controller().cast();
+        let window: &objc2_app_kit::NSWindow = &*webview.ns_window().cast();
 
-          view.setPageZoom(4.);
-          controller.removeAllUserScripts();
-          let bg_color = objc2_app_kit::NSColor::colorWithDeviceRed_green_blue_alpha(0.5, 0.2, 0.4, 1.);
-          window.setBackgroundColor(Some(&bg_color));
-        }
+        view.setPageZoom(4.);
+        controller.removeAllUserScripts();
+        let bg_color = objc2_app_kit::NSColor::colorWithDeviceRed_green_blue_alpha(0.5, 0.2, 0.4, 1.);
+        window.setBackgroundColor(Some(&bg_color));
+      }
 
-        #[cfg(target_os = "android")]
-        {
-          use jni::objects::JValue;
-          webview.jni_handle().exec(|env, _, webview| {
-            env.call_method(webview, "zoomBy", "(F)V", &[JValue::Float(4.)]).unwrap();
-          })
-        }
-      });
-      Ok(())
-  });
-}
+      #[cfg(target_os = "android")]
+      {
+        use jni::objects::JValue;
+        webview.jni_handle().exec(|env, _, webview| {
+          env.call_method(webview, "zoomBy", "(F)V", &[JValue::Float(4.)]).unwrap();
+        })
+      }
+    });
+    Ok(())
+});
 ```
   "####
   )]