Add sizeToContent prop and onSizeChange event to the embedded view spec

android/src/main/java/com/urbanairship/reactnative/ReactEmbeddedView.kt

@@ -12,6 +12,12 @@ import com.urbanairship.json.JsonValue
 class ReactEmbeddedView(context: Context) : FrameLayout(context) {
 
     private var renderedConfig: String? = null
+    private var sizeToContent: Boolean = false
+
+    /** Records whether the view measures its own content rather than filling its box. */
+    fun setSizeToContent(value: Boolean) {
+        this.sizeToContent = value
+    }
 
     fun setConfig(config: String?) {
         if (config == null || config == renderedConfig) {
@@ -56,4 +62,8 @@ class ReactEmbeddedView(context: Context) : FrameLayout(context) {
             MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY))
         layout(left, top, right, bottom)
     }
+
+    companion object {
+        const val EVENT_SIZE_CHANGE = "topAirshipEmbeddedViewSizeChange"
+    }
 }

android/src/main/java/com/urbanairship/reactnative/ReactEmbeddedViewManager.kt

@@ -18,6 +18,7 @@ class ReactEmbeddedViewManager : SimpleViewManager<ReactEmbeddedView>(),
         override fun setProperty(view: ReactEmbeddedView, propName: String, value: Any?) {
             when (propName) {
                 "config" -> setConfig(view, value as? String)
+                "sizeToContent" -> setSizeToContent(view, value as? Boolean ?: false)
                 else -> {}
             }
         }
@@ -44,11 +45,27 @@ class ReactEmbeddedViewManager : SimpleViewManager<ReactEmbeddedView>(),
         return ReactEmbeddedView(reactContext)
     }
 
+    override fun getExportedCustomBubblingEventTypeConstants(): MutableMap<String, Any> {
+        return mutableMapOf(
+            ReactEmbeddedView.EVENT_SIZE_CHANGE to mapOf(
+                "phasedRegistrationNames" to mapOf(
+                    "bubbled" to "onSizeChange",
+                    "captured" to "onSizeChangeCapture"
+                )
+            )
+        )
+    }
+
     @ReactProp(name = "config")
     override fun setConfig(view: ReactEmbeddedView, config: String?) {
         view.setConfig(config)
     }
 
+    @ReactProp(name = "sizeToContent")
+    override fun setSizeToContent(view: ReactEmbeddedView, sizeToContent: Boolean) {
+        view.setSizeToContent(sizeToContent)
+    }
+
     companion object {
         const val REACT_CLASS = "RNAirshipEmbeddedView"
     }

src/RNAirshipEmbeddedViewNativeComponent.ts

@@ -1,8 +1,36 @@
 // @ts-ignore
 import { codegenNativeComponent, type HostComponent, type ViewProps } from 'react-native';
+import type {
+  BubblingEventHandler,
+  Double,
+  WithDefault,
+  // @ts-ignore
+} from 'react-native/Libraries/Types/CodegenTypes';
+
+type EmbeddedSizeChangeEvent = Readonly<{
+  /**
+   * The content's measured height, in points.
+   */
+  height: Double;
+}>;
 
 interface NativeProps extends ViewProps {
   config: string;
+
+  /**
+   * Whether the view measures its own content and reports the height, rather
+   * than filling the box it is given.
+   */
+  sizeToContent?: WithDefault<boolean, false>;
+
+  /**
+   * Called whenever the measured content height changes. Only emitted while
+   * `sizeToContent` is set.
+   */
+  onSizeChange?: BubblingEventHandler<
+    EmbeddedSizeChangeEvent,
+    'topAirshipEmbeddedViewSizeChange'
+  >;
 }
 
 export default codegenNativeComponent<NativeProps>('RNAirshipEmbeddedView') as HostComponent<NativeProps>;