Add m-esr52 at 52.6.0

1 files changed, 257 insertions, 0 deletions

diff --git a/dom/filesystem/Directory.cpp b/dom/filesystem/Directory.cpp
new file mode 100644
index 000000000..59c78fb2c
--- /dev/null
+++ b/dom/filesystem/Directory.cpp
@@ -0,0 +1,257 @@
+/* -*- 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 "mozilla/dom/Directory.h"
+
+#include "GetDirectoryListingTask.h"
+#include "GetFilesTask.h"
+#include "WorkerPrivate.h"
+
+#include "nsCharSeparatedTokenizer.h"
+#include "nsString.h"
+#include "mozilla/dom/DirectoryBinding.h"
+#include "mozilla/dom/FileSystemBase.h"
+#include "mozilla/dom/FileSystemUtils.h"
+#include "mozilla/dom/OSFileSystem.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(Directory)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Directory)
+  if (tmp->mFileSystem) {
+    tmp->mFileSystem->Unlink();
+    tmp->mFileSystem = nullptr;
+  }
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Directory)
+  if (tmp->mFileSystem) {
+    tmp->mFileSystem->Traverse(cb);
+  }
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(Directory)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(Directory)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(Directory)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Directory)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+/* static */ bool
+Directory::WebkitBlinkDirectoryPickerEnabled(JSContext* aCx, JSObject* aObj)
+{
+  if (NS_IsMainThread()) {
+    return Preferences::GetBool("dom.webkitBlink.dirPicker.enabled", false);
+  }
+
+  // aCx can be null when this function is called by something else than WebIDL
+  // binding code.
+  workers::WorkerPrivate* workerPrivate =
+    workers::GetCurrentThreadWorkerPrivate();
+  if (!workerPrivate) {
+    return false;
+  }
+
+  return workerPrivate->WebkitBlinkDirectoryPickerEnabled();
+}
+
+/* static */ already_AddRefed<Directory>
+Directory::Constructor(const GlobalObject& aGlobal,
+                       const nsAString& aRealPath,
+                       ErrorResult& aRv)
+{
+  nsCOMPtr<nsIFile> path;
+  aRv = NS_NewLocalFile(aRealPath, true, getter_AddRefs(path));
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  return Create(aGlobal.GetAsSupports(), path);
+}
+
+/* static */ already_AddRefed<Directory>
+Directory::Create(nsISupports* aParent, nsIFile* aFile,
+                  FileSystemBase* aFileSystem)
+{
+  MOZ_ASSERT(aParent);
+  MOZ_ASSERT(aFile);
+
+#ifdef DEBUG
+  bool isDir;
+  nsresult rv = aFile->IsDirectory(&isDir);
+  MOZ_ASSERT(NS_SUCCEEDED(rv) && isDir);
+#endif
+
+  RefPtr<Directory> directory = new Directory(aParent, aFile, aFileSystem);
+  return directory.forget();
+}
+
+Directory::Directory(nsISupports* aParent,
+                     nsIFile* aFile,
+                     FileSystemBase* aFileSystem)
+  : mParent(aParent)
+  , mFile(aFile)
+{
+  MOZ_ASSERT(aFile);
+
+  // aFileSystem can be null. In this case we create a OSFileSystem when needed.
+  if (aFileSystem) {
+    // More likely, this is a OSFileSystem. This object keeps a reference of
+    // mParent but it's not cycle collectable and to avoid manual
+    // addref/release, it's better to have 1 object per directory. For this
+    // reason we clone it here.
+    mFileSystem = aFileSystem->Clone();
+  }
+}
+
+Directory::~Directory()
+{
+}
+
+nsISupports*
+Directory::GetParentObject() const
+{
+  return mParent;
+}
+
+JSObject*
+Directory::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return DirectoryBinding::Wrap(aCx, this, aGivenProto);
+}
+
+void
+Directory::GetName(nsAString& aRetval, ErrorResult& aRv)
+{
+  aRetval.Truncate();
+
+  RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return;
+  }
+
+  fs->GetDirectoryName(mFile, aRetval, aRv);
+}
+
+void
+Directory::GetPath(nsAString& aRetval, ErrorResult& aRv)
+{
+  // This operation is expensive. Better to cache the result.
+  if (mPath.IsEmpty()) {
+    RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
+    if (NS_WARN_IF(aRv.Failed())) {
+      return;
+    }
+
+    fs->GetDOMPath(mFile, mPath, aRv);
+    if (NS_WARN_IF(aRv.Failed())) {
+      return;
+    }
+  }
+
+  aRetval = mPath;
+}
+
+nsresult
+Directory::GetFullRealPath(nsAString& aPath)
+{
+  nsresult rv = mFile->GetPath(aPath);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  return NS_OK;
+}
+
+already_AddRefed<Promise>
+Directory::GetFilesAndDirectories(ErrorResult& aRv)
+{
+  RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  RefPtr<GetDirectoryListingTaskChild> task =
+    GetDirectoryListingTaskChild::Create(fs, this, mFile, mFilters, aRv);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return nullptr;
+  }
+
+  task->Start();
+
+  return task->GetPromise();
+}
+
+already_AddRefed<Promise>
+Directory::GetFiles(bool aRecursiveFlag, ErrorResult& aRv)
+{
+  ErrorResult rv;
+  RefPtr<FileSystemBase> fs = GetFileSystem(rv);
+  if (NS_WARN_IF(rv.Failed())) {
+    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
+    return nullptr;
+  }
+
+  RefPtr<GetFilesTaskChild> task =
+    GetFilesTaskChild::Create(fs, this, mFile, aRecursiveFlag, rv);
+  if (NS_WARN_IF(rv.Failed())) {
+    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
+    return nullptr;
+  }
+
+  task->Start();
+
+  return task->GetPromise();
+}
+
+void
+Directory::SetContentFilters(const nsAString& aFilters)
+{
+  mFilters = aFilters;
+}
+
+FileSystemBase*
+Directory::GetFileSystem(ErrorResult& aRv)
+{
+  if (!mFileSystem) {
+    nsAutoString path;
+    aRv = mFile->GetPath(path);
+    if (NS_WARN_IF(aRv.Failed())) {
+      return nullptr;
+    }
+
+    RefPtr<OSFileSystem> fs = new OSFileSystem(path);
+    fs->Init(mParent);
+
+    mFileSystem = fs;
+  }
+
+  return mFileSystem;
+}
+
+
+bool
+Directory::ClonableToDifferentThreadOrProcess() const
+{
+  // If we don't have a fileSystem we are going to create a OSFileSystem that is
+  // clonable everywhere.
+  if (!mFileSystem) {
+    return true;
+  }
+
+  return mFileSystem->ClonableToDifferentThreadOrProcess();
+}
+
+} // namespace dom
+} // namespace mozilla