xcb window reparent.

1 files changed, 28 insertions, 0 deletions

diff --git a/include/cru/platform/Check.h b/include/cru/platform/Check.h
index 270150e8..202ee86e 100644
--- a/include/cru/platform/Check.h
+++ b/include/cru/platform/Check.h
@@ -35,4 +35,32 @@ std::shared_ptr<TTarget> CheckPlatform(const std::shared_ptr<TSource>& resource,
   }
   return result;
 }
+
+template <typename TTarget>
+TTarget* CheckPlatform(IPlatformResource* resource,
+                       std::string target_platform) {
+  if (resource == nullptr) return nullptr;
+  const auto result = dynamic_cast<TTarget*>(resource);
+  if (result == nullptr) {
+    throw PlatformNotMatchException(
+        resource->GetPlatformIdUtf8(), target_platform,
+        "Try to convert resource to target platform failed.");
+  }
+  return result;
+}
+
+template <typename TTarget, typename TSource>
+std::shared_ptr<TTarget> CheckPlatform(const std::shared_ptr<TSource>& resource,
+                                       std::string target_platform) {
+  if (resource == nullptr) return nullptr;
+  static_assert(std::is_base_of_v<IPlatformResource, TSource>,
+                "TSource must be a subclass of IPlatformResource.");
+  const auto result = std::dynamic_pointer_cast<TTarget>(resource);
+  if (result == nullptr) {
+    throw PlatformNotMatchException(
+        resource->GetPlatformIdUtf8(), target_platform,
+        "Try to convert resource to target platform failed.");
+  }
+  return result;
+}
 }  // namespace cru::platform