Vendor dependencies for 0.3.0 release

vendor/accesskit_winit/src/platform_impl/android.rs

@@ -0,0 +1,50 @@
+// Copyright 2025 The AccessKit Authors. All rights reserved.
+// Licensed under the Apache License, Version 2.0 (found in
+// the LICENSE-APACHE file).
+
+use accesskit::{ActionHandler, ActivationHandler, DeactivationHandler, TreeUpdate};
+use accesskit_android::{
+    jni::{objects::JObject, JavaVM},
+    InjectingAdapter,
+};
+use winit::{
+    event::WindowEvent, event_loop::ActiveEventLoop, platform::android::ActiveEventLoopExtAndroid,
+    window::Window,
+};
+
+pub struct Adapter {
+    adapter: InjectingAdapter,
+}
+
+impl Adapter {
+    pub fn new(
+        event_loop: &ActiveEventLoop,
+        _window: &Window,
+        activation_handler: impl 'static + ActivationHandler + Send,
+        action_handler: impl 'static + ActionHandler + Send,
+        _deactivation_handler: impl 'static + DeactivationHandler,
+    ) -> Self {
+        let app = event_loop.android_app();
+        let vm = unsafe { JavaVM::from_raw(app.vm_as_ptr() as *mut _) }.unwrap();
+        let mut env = vm.get_env().unwrap();
+        let activity = unsafe { JObject::from_raw(app.activity_as_ptr() as *mut _) };
+        let view = env
+            .get_field(
+                &activity,
+                "mSurfaceView",
+                "Lcom/google/androidgamesdk/GameActivity$InputEnabledSurfaceView;",
+            )
+            .unwrap()
+            .l()
+            .unwrap();
+        let adapter =
+            InjectingAdapter::new(&mut env, &view, activation_handler, action_handler).unwrap();
+        Self { adapter }
+    }
+
+    pub fn update_if_active(&mut self, updater: impl FnOnce() -> TreeUpdate) {
+        self.adapter.update_if_active(updater);
+    }
+
+    pub fn process_event(&mut self, _window: &Window, _event: &WindowEvent) {}
+}