Prototype development/inline android component

modules/@shopify/checkout-sheet-kit/android/build.gradle

@@ -100,5 +100,10 @@ dependencies {
   implementation("com.shopify:checkout-sheet-kit:${SHOPIFY_CHECKOUT_SDK_VERSION}")
   implementation("com.fasterxml.jackson.core:jackson-databind:2.12.5")
   debugImplementation("com.shopify:checkout-sheet-kit:${SHOPIFY_CHECKOUT_SDK_VERSION}")
+
+  testImplementation 'junit:junit:4.13.2'
+  testImplementation 'org.mockito:mockito-core:4.11.0'
+  testImplementation 'org.mockito:mockito-inline:5.2.0'
+  testImplementation 'org.assertj:assertj-core:3.27.6'
 }
 

modules/@shopify/checkout-sheet-kit/android/src/main/java/com/shopify/reactnative/checkoutsheetkit/CheckoutEvent.java

@@ -0,0 +1,63 @@
+/*
+MIT License
+
+Copyright 2023 - Present, Shopify Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package com.shopify.reactnative.checkoutsheetkit;
+
+import androidx.annotation.NonNull;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.uimanager.events.Event;
+
+/**
+ * Can be used to send events back to props of instances of components
+ * <p>
+ * private void sendEvent(String eventName, WritableMap params) {
+ * ReactContext reactContext = this.context.getReactApplicationContext();
+ * int viewId = getId();
+ * EventDispatcher eventDispatcher = UIManagerHelper.getEventDispatcherForReactTag(reactContext, viewId);
+ * int surfaceId = UIManagerHelper.getSurfaceId(reactContext);
+ * eventDispatcher.dispatchEvent(new CheckoutEvent(surfaceId, viewId, eventName, params));
+ * }
+ **/
+public class CheckoutEvent extends Event<CheckoutEvent> {
+  private final String eventName;
+  private final WritableMap payload;
+
+  public CheckoutEvent(int surfaceId, int viewId, String eventName, WritableMap payload) {
+    super(surfaceId, viewId);
+    this.eventName = eventName;
+    this.payload = payload;
+  }
+
+  @NonNull
+  @Override
+  public String getEventName() {
+    return eventName;
+  }
+
+  @Override
+  protected WritableMap getEventData() {
+    return payload != null ? payload : Arguments.createMap();
+  }
+}