feat: macOS/iOS: add option to disable or enable link previews when building a webview (#13090)

* macOS/iOS: add option to disable or enable link previews when building a webview (the webkit api has it enabled by default)
  -  `WebViewBuilderExtDarwin.allow_link_preview(allow_link_preview: bool)`
  -  `WebViewBuilder.allow_link_preview(allow_link_preview: bool)`
  -  `WebviewWindowBuilder.allow_link_preview(allow_link_preview: bool)`

* also call on iOS

* add api

* fix tests

---------

Co-authored-by: Lucas Nogueira <lucas@tauri.app>

Author: Simon-Laux

.changes/macOS_allow_link_preview-api.md

@@ -0,0 +1,7 @@
+---
+"@tauri-apps/api": patch:feat
+---
+
+macOS/iOS: add option to disable or enable link previews when building a webview (the webkit api has it enabled by default)
+  -  `WindowOptions::allowLinkPreview`
+  -  `WebviewOptions::allowLinkPreview`

.changes/macOS_allow_link_preview.md

@@ -0,0 +1,9 @@
+---
+"tauri": patch:feat
+"tauri-runtime": patch:feat
+"tauri-runtime-wry": patch:feat
+---
+
+macOS/iOS: add option to disable or enable link previews when building a webview (the webkit api has it enabled by default)
+  -  `WebViewBuilder.allow_link_preview(allow_link_preview: bool)`
+  -  `WebviewWindowBuilder.allow_link_preview(allow_link_preview: bool)`

crates/tauri-cli/config.schema.json

@@ -545,6 +545,11 @@
           "description": "Whether we should disable JavaScript code execution on the webview or not.",
           "default": false,
           "type": "boolean"
+        },
+        "allowLinkPreview": {
+          "description": "on macOS and iOS there is a link preview on long pressing links, this is enabled by default.\n see https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview",
+          "default": true,
+          "type": "boolean"
         }
       },
       "additionalProperties": false

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

@@ -4536,6 +4536,9 @@ fn create_webview<T: UserEvent>(
     if let Some(data_store_identifier) = &webview_attributes.data_store_identifier {
       webview_builder = webview_builder.with_data_store_identifier(*data_store_identifier);
     }
+
+    webview_builder =
+      webview_builder.with_allow_link_preview(webview_attributes.allow_link_preview);
   }
 
   #[cfg(target_os = "macos")]

crates/tauri-runtime/src/webview.rs

@@ -233,6 +233,9 @@ pub struct WebviewAttributes {
   pub traffic_light_position: Option<dpi::Position>,
   pub background_throttling: Option<BackgroundThrottlingPolicy>,
   pub javascript_disabled: bool,
+  /// on macOS and iOS there is a link preview on long pressing links, this is enabled by default.
+  /// see https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview
+  pub allow_link_preview: bool,
 }
 
 impl From<&WindowConfig> for WebviewAttributes {
@@ -277,6 +280,7 @@ impl From<&WindowConfig> for WebviewAttributes {
       builder = builder.background_color(color);
     }
     builder.javascript_disabled = config.javascript_disabled;
+    builder.allow_link_preview = config.allow_link_preview;
     builder
   }
 }
@@ -310,6 +314,7 @@ impl WebviewAttributes {
       traffic_light_position: None,
       background_throttling: None,
       javascript_disabled: false,
+      allow_link_preview: true,
     }
   }
 
@@ -532,6 +537,21 @@ impl WebviewAttributes {
     self
   }
 
+  /// Whether to show a link preview when long pressing on links. Available on macOS and iOS only.
+  ///
+  /// Default is true.
+  ///
+  /// See https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview
+  ///
+  /// ## Platform-specific
+  ///
+  /// - **Linux / Windows / Android:** Unsupported.
+  #[must_use]
+  pub fn allow_link_preview(mut self, allow_link_preview: bool) -> Self {
+    self.allow_link_preview = allow_link_preview;
+    self
+  }
+
   /// Change the default background throttling behavior.
   ///
   /// By default, browsers use a suspend policy that will throttle timers and even unload

crates/tauri-schema-generator/schemas/config.schema.json

@@ -545,6 +545,11 @@
           "description": "Whether we should disable JavaScript code execution on the webview or not.",
           "default": false,
           "type": "boolean"
+        },
+        "allowLinkPreview": {
+          "description": "on macOS and iOS there is a link preview on long pressing links, this is enabled by default.\n see https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview",
+          "default": true,
+          "type": "boolean"
         }
       },
       "additionalProperties": false

crates/tauri-utils/src/config.rs

@@ -1736,6 +1736,10 @@ pub struct WindowConfig {
   /// Whether we should disable JavaScript code execution on the webview or not.
   #[serde(default, alias = "javascript-disabled")]
   pub javascript_disabled: bool,
+  /// on macOS and iOS there is a link preview on long pressing links, this is enabled by default.
+  /// see https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview
+  #[serde(default = "default_true", alias = "allow-link-preview")]
+  pub allow_link_preview: bool,
 }
 
 impl Default for WindowConfig {
@@ -1791,6 +1795,7 @@ impl Default for WindowConfig {
       background_color: None,
       background_throttling: None,
       javascript_disabled: false,
+      allow_link_preview: true,
     }
   }
 }
@@ -3074,6 +3079,7 @@ mod build {
       let background_color = opt_lit(self.background_color.as_ref());
       let background_throttling = opt_lit(self.background_throttling.as_ref());
       let javascript_disabled = self.javascript_disabled;
+      let allow_link_preview = self.allow_link_preview;
 
       literal_struct!(
         tokens,
@@ -3127,7 +3133,8 @@ mod build {
         devtools,
         background_color,
         background_throttling,
-        javascript_disabled
+        javascript_disabled,
+        allow_link_preview
       );
     }
   }

crates/tauri/src/webview/mod.rs

@@ -974,6 +974,24 @@ fn main() {
     self.webview_attributes.javascript_disabled = true;
     self
   }
+
+  /// Whether to show a link preview when long pressing on links. Available on macOS and iOS only.
+  ///
+  /// Default is true.
+  ///
+  /// See https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview
+  ///
+  /// ## Platform-specific
+  ///
+  /// - **Linux / Windows / Android:** Unsupported.
+  #[cfg(target_os = "macos")]
+  #[must_use]
+  pub fn allow_link_preview(mut self, allow_link_preview: bool) -> Self {
+    self.webview_attributes = self
+      .webview_attributes
+      .allow_link_preview(allow_link_preview);
+    self
+  }
 }
 
 /// Webview.

crates/tauri/src/webview/plugin.rs

@@ -52,6 +52,8 @@ mod desktop_commands {
     background_throttling: Option<BackgroundThrottlingPolicy>,
     #[serde(default)]
     javascript_disabled: bool,
+    #[serde(default = "default_true")]
+    allow_link_preview: bool,
   }
 
   #[cfg(feature = "unstable")]
@@ -69,6 +71,7 @@ mod desktop_commands {
       builder.webview_attributes.zoom_hotkeys_enabled = config.zoom_hotkeys_enabled;
       builder.webview_attributes.background_throttling = config.background_throttling;
       builder.webview_attributes.javascript_disabled = config.javascript_disabled;
+      builder.webview_attributes.allow_link_preview = config.allow_link_preview;
       builder
     }
   }

crates/tauri/src/webview/webview_window.rs

@@ -718,6 +718,22 @@ impl<'a, R: Runtime, M: Manager<R>> WebviewWindowBuilder<'a, R, M> {
     self
   }
 
+  /// Whether to show a link preview when long pressing on links. Available on macOS and iOS only.
+  ///
+  /// Default is true.
+  ///
+  /// See https://docs.rs/objc2-web-kit/latest/objc2_web_kit/struct.WKWebView.html#method.allowsLinkPreview
+  ///
+  /// ## Platform-specific
+  ///
+  /// - **Linux / Windows / Android:** Unsupported.
+  #[cfg(target_os = "macos")]
+  #[must_use]
+  pub fn allow_link_preview(mut self, allow_link_preview: bool) -> Self {
+    self.webview_builder = self.webview_builder.allow_link_preview(allow_link_preview);
+    self
+  }
+
   /// Hide the window title.
   #[cfg(target_os = "macos")]
   #[must_use]