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opencode/packages/desktop/src-tauri/src/window_customizer.rs

@@ -0,0 +1,46 @@
+use tauri::{Manager, Runtime, Window, plugin::Plugin};
+
+pub struct PinchZoomDisablePlugin;
+
+impl Default for PinchZoomDisablePlugin {
+    fn default() -> Self {
+        Self
+    }
+}
+
+impl<R: Runtime> Plugin<R> for PinchZoomDisablePlugin {
+    fn name(&self) -> &'static str {
+        "Does not matter here"
+    }
+
+    fn window_created(&mut self, window: Window<R>) {
+        let Some(webview_window) = window.get_webview_window(window.label()) else {
+            return;
+        };
+
+        let _ = webview_window.with_webview(|_webview| {
+            #[cfg(target_os = "linux")]
+            unsafe {
+                use gtk::GestureZoom;
+                use gtk::glib::ObjectExt;
+                use webkit2gtk::glib::gobject_ffi;
+
+                if let Some(data) = _webview.inner().data::<GestureZoom>("wk-view-zoom-gesture") {
+                    gobject_ffi::g_signal_handlers_destroy(data.as_ptr().cast());
+                }
+            }
+
+            #[cfg(target_os = "macos")]
+            unsafe {
+                use objc2::rc::Retained;
+                use objc2_web_kit::WKWebView;
+
+                // Get the WKWebView pointer and disable magnification gestures
+                // This prevents Cmd+Ctrl+scroll and pinch-to-zoom from changing the zoom level
+                let wk_webview: Retained<WKWebView> =
+                    Retained::retain(_webview.inner().cast()).unwrap();
+                wk_webview.setAllowsMagnification(false);
+            }
+        });
+    }
+}