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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/filesystem/GetFilesHelper.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/filesystem/GetFilesHelper.h')
-rw-r--r--dom/filesystem/GetFilesHelper.h161
1 files changed, 161 insertions, 0 deletions
diff --git a/dom/filesystem/GetFilesHelper.h b/dom/filesystem/GetFilesHelper.h
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+/* -*- 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/. */
+
+#ifndef mozilla_dom_GetFilesHelper_h
+#define mozilla_dom_GetFilesHelper_h
+
+#include "mozilla/Mutex.h"
+#include "mozilla/RefPtr.h"
+#include "nsCycleCollectionTraversalCallback.h"
+#include "nsTArray.h"
+#include "nsThreadUtils.h"
+
+class nsIGlobalObject;
+
+namespace mozilla {
+class ErrorResult;
+
+namespace dom {
+
+class BlobImpl;
+class ContentParent;
+class File;
+class GetFilesHelperParent;
+class OwningFileOrDirectory;
+class Promise;
+
+class GetFilesCallback {
+ public:
+ NS_INLINE_DECL_REFCOUNTING(GetFilesCallback);
+
+ virtual void Callback(nsresult aStatus,
+ const FallibleTArray<RefPtr<BlobImpl>>& aBlobImpls) = 0;
+
+ protected:
+ virtual ~GetFilesCallback() = default;
+};
+
+class GetFilesHelperBase {
+ protected:
+ explicit GetFilesHelperBase(bool aRecursiveFlag)
+ : mRecursiveFlag(aRecursiveFlag) {}
+
+ virtual ~GetFilesHelperBase() = default;
+
+ virtual bool IsCanceled() { return false; }
+
+ nsresult ExploreDirectory(const nsAString& aDOMPath, nsIFile* aFile);
+
+ bool mRecursiveFlag;
+
+ // We populate this array in the I/O thread with the BlobImpl.
+ FallibleTArray<RefPtr<BlobImpl>> mTargetBlobImplArray;
+};
+
+// Retrieving the list of files can be very time/IO consuming. We use this
+// helper class to do it just once.
+class GetFilesHelper : public Runnable, public GetFilesHelperBase {
+ friend class GetFilesHelperParent;
+
+ public:
+ static already_AddRefed<GetFilesHelper> Create(
+ const nsTArray<OwningFileOrDirectory>& aFilesOrDirectory,
+ bool aRecursiveFlag, ErrorResult& aRv);
+
+ void AddPromise(Promise* aPromise);
+
+ void AddCallback(GetFilesCallback* aCallback);
+
+ // CC methods
+ void Unlink();
+ void Traverse(nsCycleCollectionTraversalCallback& cb);
+
+ protected:
+ explicit GetFilesHelper(bool aRecursiveFlag);
+
+ virtual ~GetFilesHelper();
+
+ void SetDirectoryPath(const nsAString& aDirectoryPath) {
+ mDirectoryPath = aDirectoryPath;
+ }
+
+ virtual bool IsCanceled() override {
+ MutexAutoLock lock(mMutex);
+ return mCanceled;
+ }
+
+ virtual void Work(ErrorResult& aRv);
+
+ virtual void Cancel(){};
+
+ NS_IMETHOD
+ Run() override;
+
+ void RunIO();
+
+ void OperationCompleted();
+
+ void ResolveOrRejectPromise(Promise* aPromise);
+
+ void RunCallback(GetFilesCallback* aCallback);
+
+ bool mListingCompleted;
+ nsString mDirectoryPath;
+
+ // Error code to propagate.
+ nsresult mErrorResult;
+
+ nsTArray<RefPtr<Promise>> mPromises;
+ nsTArray<RefPtr<GetFilesCallback>> mCallbacks;
+
+ Mutex mMutex MOZ_UNANNOTATED;
+
+ // This variable is protected by mutex.
+ bool mCanceled;
+};
+
+class GetFilesHelperChild final : public GetFilesHelper {
+ public:
+ explicit GetFilesHelperChild(bool aRecursiveFlag)
+ : GetFilesHelper(aRecursiveFlag), mPendingOperation(false) {}
+
+ virtual void Work(ErrorResult& aRv) override;
+
+ virtual void Cancel() override;
+
+ bool AppendBlobImpl(BlobImpl* aBlobImpl);
+
+ void Finished(nsresult aResult);
+
+ private:
+ nsID mUUID;
+ bool mPendingOperation;
+};
+
+class GetFilesHelperParentCallback;
+
+class GetFilesHelperParent final : public GetFilesHelper {
+ friend class GetFilesHelperParentCallback;
+
+ public:
+ static already_AddRefed<GetFilesHelperParent> Create(
+ const nsID& aUUID, const nsAString& aDirectoryPath, bool aRecursiveFlag,
+ ContentParent* aContentParent, ErrorResult& aRv);
+
+ private:
+ GetFilesHelperParent(const nsID& aUUID, ContentParent* aContentParent,
+ bool aRecursiveFlag);
+
+ ~GetFilesHelperParent();
+
+ RefPtr<ContentParent> mContentParent;
+ nsID mUUID;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_GetFilesHelper_h