test: vendor node-is-valid-window (#39965)

spec/is-valid-window/src/impl.h

@@ -0,0 +1,12 @@
+#ifndef SRC_IMPL_H_
+#define SRC_IMPL_H_
+
+#include <cstddef>
+
+namespace impl {
+
+bool IsValidWindow(char* handle, size_t size);
+
+}  // namespace impl
+
+#endif  // SRC_IMPL_H_

spec/is-valid-window/src/impl_darwin.mm

@@ -0,0 +1,14 @@
+#include "impl.h"
+
+#include <Cocoa/Cocoa.h>
+
+namespace impl {
+
+bool IsValidWindow(char* handle, size_t size) {
+  if (size != sizeof(NSView*))
+    return false;
+  NSView* view = *reinterpret_cast<NSView**>(handle);
+  return [view isKindOfClass:[NSView class]];
+}
+
+}  // namespace impl

spec/is-valid-window/src/impl_posix.cc

@@ -0,0 +1,9 @@
+#include "impl.h"
+
+namespace impl {
+
+bool IsValidWindow(char* handle, size_t size) {
+  return true;
+}
+
+}  // namespace impl

spec/is-valid-window/src/impl_win.cc

@@ -0,0 +1,14 @@
+#include "impl.h"
+
+#include <windows.h>
+
+namespace impl {
+
+bool IsValidWindow(char* handle, size_t size) {
+  if (size != sizeof(HWND))
+    return false;
+  HWND window = *reinterpret_cast<HWND*>(handle);
+  return ::IsWindow(window);
+}
+
+}  // namespace impl

spec/is-valid-window/src/main.cc

@@ -0,0 +1,56 @@
+#include <js_native_api.h>
+#include <node_api.h>
+
+#include "impl.h"
+
+namespace {
+
+napi_value IsValidWindow(napi_env env, napi_callback_info info) {
+  size_t argc = 1;
+  napi_value args[1], result;
+  napi_status status;
+
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  if (status != napi_ok)
+    return NULL;
+
+  bool is_buffer;
+  status = napi_is_buffer(env, args[0], &is_buffer);
+  if (status != napi_ok)
+    return NULL;
+
+  if (!is_buffer) {
+    napi_throw_error(env, NULL, "First argument must be Buffer");
+    return NULL;
+  }
+
+  char* data;
+  size_t length;
+  status = napi_get_buffer_info(env, args[0], (void**)&data, &length);
+  if (status != napi_ok)
+    return NULL;
+
+  status = napi_get_boolean(env, impl::IsValidWindow(data, length), &result);
+  if (status != napi_ok)
+    return NULL;
+
+  return result;
+}
+
+napi_value Init(napi_env env, napi_value exports) {
+  napi_status status;
+  napi_property_descriptor descriptors[] = {{"isValidWindow", NULL,
+                                             IsValidWindow, NULL, NULL, NULL,
+                                             napi_default, NULL}};
+
+  status = napi_define_properties(
+      env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors);
+  if (status != napi_ok)
+    return NULL;
+
+  return exports;
+}
+
+}  // namespace
+
+NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)