1 files changed, 122 insertions, 0 deletions
diff --git a/dom/fs/api/FileSystemFileHandle.cpp b/dom/fs/api/FileSystemFileHandle.cpp
new file mode 100644
index 0000000000..4d8306857f
--- /dev/null
+++ b/dom/fs/api/FileSystemFileHandle.cpp
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "FileSystemFileHandle.h"
+
+#include "fs/FileSystemRequestHandler.h"
+#include "js/StructuredClone.h"
+#include "js/TypeDecls.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/FileSystemFileHandleBinding.h"
+#include "mozilla/dom/FileSystemHandleBinding.h"
+#include "mozilla/dom/FileSystemManager.h"
+#include "mozilla/dom/PFileSystemManager.h"
+#include "mozilla/dom/Promise.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(FileSystemFileHandle,
+                                               FileSystemHandle)
+NS_IMPL_CYCLE_COLLECTION_INHERITED(FileSystemFileHandle, FileSystemHandle)
+
+FileSystemFileHandle::FileSystemFileHandle(
+    nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
+    const fs::FileSystemEntryMetadata& aMetadata,
+    fs::FileSystemRequestHandler* aRequestHandler)
+    : FileSystemHandle(aGlobal, aManager, aMetadata, aRequestHandler) {}
+
+FileSystemFileHandle::FileSystemFileHandle(
+    nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
+    const fs::FileSystemEntryMetadata& aMetadata)
+    : FileSystemFileHandle(aGlobal, aManager, aMetadata,
+                           new fs::FileSystemRequestHandler()) {}
+
+// WebIDL Boilerplate
+
+JSObject* FileSystemFileHandle::WrapObject(JSContext* aCx,
+                                           JS::Handle<JSObject*> aGivenProto) {
+  return FileSystemFileHandle_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+// WebIDL Interface
+
+FileSystemHandleKind FileSystemFileHandle::Kind() const {
+  return FileSystemHandleKind::File;
+}
+
+already_AddRefed<Promise> FileSystemFileHandle::GetFile(ErrorResult& aError) {
+  RefPtr<Promise> promise = Promise::Create(GetParentObject(), aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  mRequestHandler->GetFile(mManager, mMetadata, promise, aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  return promise.forget();
+}
+
+already_AddRefed<Promise> FileSystemFileHandle::CreateWritable(
+    const FileSystemCreateWritableOptions& aOptions, ErrorResult& aError) {
+  RefPtr<Promise> promise = Promise::Create(GetParentObject(), aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  mRequestHandler->GetWritable(mManager, mMetadata, aOptions.mKeepExistingData,
+                               promise, aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  return promise.forget();
+}
+
+already_AddRefed<Promise> FileSystemFileHandle::CreateSyncAccessHandle(
+    ErrorResult& aError) {
+  RefPtr<Promise> promise = Promise::Create(GetParentObject(), aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  mRequestHandler->GetAccessHandle(mManager, mMetadata, promise, aError);
+  if (aError.Failed()) {
+    return nullptr;
+  }
+
+  return promise.forget();
+}
+
+// [Serializable] implementation
+
+// static
+already_AddRefed<FileSystemFileHandle>
+FileSystemFileHandle::ReadStructuredClone(JSContext* aCx,
+                                          nsIGlobalObject* aGlobal,
+                                          JSStructuredCloneReader* aReader) {
+  uint32_t kind = static_cast<uint32_t>(FileSystemHandleKind::EndGuard_);
+
+  if (!JS_ReadBytes(aReader, reinterpret_cast<void*>(&kind),
+                    sizeof(uint32_t))) {
+    return nullptr;
+  }
+
+  if (kind != static_cast<uint32_t>(FileSystemHandleKind::File)) {
+    return nullptr;
+  }
+
+  RefPtr<FileSystemFileHandle> result =
+      FileSystemHandle::ConstructFileHandle(aCx, aGlobal, aReader);
+  if (!result) {
+    return nullptr;
+  }
+
+  return result.forget();
+}
+
+}  // namespace mozilla::dom