Update children widgets recursively (#2346)

Author: MortimerGoro

app/src/main/cpp/BrowserWorld.cpp

@@ -1042,6 +1042,16 @@ BrowserWorld::UpdateWidget(int32_t aHandle, const WidgetPlacementPtr& aPlacement
   LayoutWidget(aHandle);
 }
 
+void
+BrowserWorld::UpdateWidgetRecursive(int32_t aHandle, const WidgetPlacementPtr& aPlacement) {
+  UpdateWidget(aHandle, aPlacement);
+  for (WidgetPtr& widget: m.widgets) {
+    if (widget->GetPlacement() && widget->GetPlacement()->parentHandle == aHandle) {
+      UpdateWidgetRecursive(widget->GetHandle(), widget->GetPlacement());
+    }
+  }
+}
+
 void
 BrowserWorld::RemoveWidget(int32_t aHandle) {
   ASSERT_ON_RENDER_THREAD();
@@ -1514,7 +1524,7 @@ JNI_METHOD(void, updateWidgetNative)
 (JNIEnv* aEnv, jobject, jint aHandle, jobject aPlacement) {
   crow::WidgetPlacementPtr placement = crow::WidgetPlacement::FromJava(aEnv, aPlacement);
   if (placement) {
-    crow::BrowserWorld::Instance().UpdateWidget(aHandle, placement);
+    crow::BrowserWorld::Instance().UpdateWidgetRecursive(aHandle, placement);
   }
 }
 

app/src/main/cpp/BrowserWorld.h

@@ -45,6 +45,7 @@ class BrowserWorld {
   void SetSurfaceTexture(const std::string& aName, jobject& aSurface);
   void AddWidget(int32_t aHandle, const WidgetPlacementPtr& placement);
   void UpdateWidget(int32_t aHandle, const WidgetPlacementPtr& aPlacement);
+  void UpdateWidgetRecursive(int32_t aHandle, const WidgetPlacementPtr& aPlacement);
   void RemoveWidget(int32_t aHandle);
   void StartWidgetResize(int32_t aHandle, const vrb::Vector& aMaxSize, const vrb::Vector& aMinSize);
   void FinishWidgetResize(int32_t aHandle);