diff -r 000000000000 -r 6474c204b198 dom/file/ArchiveRequest.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/file/ArchiveRequest.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,279 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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 "ArchiveRequest.h"
+
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/dom/ArchiveRequestBinding.h"
+#include "nsContentUtils.h"
+#include "nsCxPusher.h"
+
+using namespace mozilla;
+
+USING_FILE_NAMESPACE
+
+/**
+ * Class used to make asynchronous the ArchiveRequest.
+ */
+class ArchiveRequestEvent : public nsRunnable
+{
+public:
+  NS_DECL_NSIRUNNABLE
+
+  ArchiveRequestEvent(ArchiveRequest* request)
+  : mRequest(request)
+  {
+    MOZ_COUNT_CTOR(ArchiveRequestEvent);
+  }
+
+  ~ArchiveRequestEvent()
+  {
+    MOZ_COUNT_DTOR(ArchiveRequestEvent);
+  }
+
+private: //data
+  nsRefPtr<ArchiveRequest> mRequest;
+};
+
+NS_IMETHODIMP
+ArchiveRequestEvent::Run()
+{
+  NS_ABORT_IF_FALSE(mRequest, "the request is not longer valid");
+  mRequest->Run();
+  return NS_OK;
+}
+
+// ArchiveRequest
+
+ArchiveRequest::ArchiveRequest(nsPIDOMWindow* aWindow,
+                               ArchiveReader* aReader)
+: DOMRequest(aWindow),
+  mArchiveReader(aReader)
+{
+  MOZ_ASSERT(aReader);
+
+  MOZ_COUNT_CTOR(ArchiveRequest);
+
+  /* An event to make this request asynchronous: */
+  nsRefPtr<ArchiveRequestEvent> event = new ArchiveRequestEvent(this);
+  NS_DispatchToCurrentThread(event);
+}
+
+ArchiveRequest::~ArchiveRequest()
+{
+  MOZ_COUNT_DTOR(ArchiveRequest);
+}
+
+nsresult
+ArchiveRequest::PreHandleEvent(EventChainPreVisitor& aVisitor)
+{
+  aVisitor.mCanHandle = true;
+  aVisitor.mParentTarget = nullptr;
+  return NS_OK;
+}
+
+/* virtual */ JSObject*
+ArchiveRequest::WrapObject(JSContext* aCx)
+{
+  return ArchiveRequestBinding::Wrap(aCx, this);
+}
+
+ArchiveReader*
+ArchiveRequest::Reader() const
+{
+  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
+
+  return mArchiveReader;
+}
+
+// Here the request is processed:
+void
+ArchiveRequest::Run()
+{
+  // Register this request to the reader.
+  // When the reader is ready to return data, a 'Ready()' will be called
+  nsresult rv = mArchiveReader->RegisterRequest(this);
+  if (NS_FAILED(rv)) {
+    FireError(rv);
+  }
+}
+
+void
+ArchiveRequest::OpGetFilenames()
+{
+  mOperation = GetFilenames;
+}
+
+void
+ArchiveRequest::OpGetFile(const nsAString& aFilename)
+{
+  mOperation = GetFile;
+  mFilename = aFilename;
+}
+
+void
+ArchiveRequest::OpGetFiles()
+{
+  mOperation = GetFiles;
+}
+
+nsresult
+ArchiveRequest::ReaderReady(nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList,
+                            nsresult aStatus)
+{
+  if (NS_FAILED(aStatus)) {
+    FireError(aStatus);
+    return NS_OK;
+  }
+
+  nsresult rv;
+
+  nsIScriptContext* sc = GetContextForEventHandlers(&rv);
+  NS_ENSURE_STATE(sc);
+
+  AutoPushJSContext cx(sc->GetNativeContext());
+  NS_ASSERTION(cx, "Failed to get a context!");
+
+  JS::Rooted<JSObject*> global(cx, sc->GetWindowProxy());
+  NS_ASSERTION(global, "Failed to get global object!");
+
+  JSAutoCompartment ac(cx, global);
+
+  JS::Rooted<JS::Value> result(cx);
+  switch (mOperation) {
+    case GetFilenames:
+      rv = GetFilenamesResult(cx, result.address(), aFileList);
+      break;
+
+    case GetFile:
+      rv = GetFileResult(cx, &result, aFileList);
+      break;
+
+      case GetFiles:
+        rv = GetFilesResult(cx, &result, aFileList);
+        break;
+  }
+
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Get*Result failed!");
+  }
+
+  if (NS_SUCCEEDED(rv)) {
+    FireSuccess(result);
+  }
+  else {
+    FireError(rv);
+  }
+
+  return NS_OK;
+}
+
+nsresult
+ArchiveRequest::GetFilenamesResult(JSContext* aCx,
+                                   JS::Value* aValue,
+                                   nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList)
+{
+  JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, aFileList.Length()));
+  nsresult rv;
+
+  if (!array) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  JS::Rooted<JSString*> str(aCx);
+  for (uint32_t i = 0; i < aFileList.Length(); ++i) {
+    nsCOMPtr<nsIDOMFile> file = aFileList[i];
+
+    nsString filename;
+    rv = file->GetName(filename);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    str = JS_NewUCStringCopyZ(aCx, filename.get());
+    NS_ENSURE_TRUE(str, NS_ERROR_OUT_OF_MEMORY);
+
+    if (NS_FAILED(rv) ||
+        !JS_DefineElement(aCx, array, i, JS::StringValue(str), nullptr, nullptr,
+                          JSPROP_ENUMERATE)) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  if (!JS_FreezeObject(aCx, array)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  *aValue = OBJECT_TO_JSVAL(array);
+  return NS_OK;
+}
+
+nsresult
+ArchiveRequest::GetFileResult(JSContext* aCx,
+                              JS::MutableHandle<JS::Value> aValue,
+                              nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList)
+{
+  for (uint32_t i = 0; i < aFileList.Length(); ++i) {
+    nsCOMPtr<nsIDOMFile> file = aFileList[i];
+
+    nsString filename;
+    nsresult rv = file->GetName(filename);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    if (filename == mFilename) {
+      return nsContentUtils::WrapNative(aCx, file, &NS_GET_IID(nsIDOMFile),
+                                        aValue);
+    }
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+nsresult
+ArchiveRequest::GetFilesResult(JSContext* aCx,
+                               JS::MutableHandle<JS::Value> aValue,
+                               nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList)
+{
+  JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, aFileList.Length()));
+  if (!array) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  for (uint32_t i = 0; i < aFileList.Length(); ++i) {
+    nsCOMPtr<nsIDOMFile> file = aFileList[i];
+
+    JS::Rooted<JS::Value> value(aCx);
+    nsresult rv = nsContentUtils::WrapNative(aCx, file, &NS_GET_IID(nsIDOMFile),
+                                             &value);
+    if (NS_FAILED(rv) ||
+        !JS_DefineElement(aCx, array, i, value, nullptr, nullptr,
+                          JSPROP_ENUMERATE)) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  aValue.setObject(*array);
+  return NS_OK;
+}
+
+// static
+already_AddRefed<ArchiveRequest>
+ArchiveRequest::Create(nsPIDOMWindow* aOwner,
+                       ArchiveReader* aReader)
+{
+  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
+
+  nsRefPtr<ArchiveRequest> request = new ArchiveRequest(aOwner, aReader);
+
+  return request.forget();
+}
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(ArchiveRequest, DOMRequest,
+                                   mArchiveReader)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ArchiveRequest)
+NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
+
+NS_IMPL_ADDREF_INHERITED(ArchiveRequest, DOMRequest)
+NS_IMPL_RELEASE_INHERITED(ArchiveRequest, DOMRequest)