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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/promise/PromiseNativeHandler.h | |
parent | Initial commit. (diff) | |
download | firefox-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/promise/PromiseNativeHandler.h')
-rw-r--r-- | dom/promise/PromiseNativeHandler.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/dom/promise/PromiseNativeHandler.h b/dom/promise/PromiseNativeHandler.h new file mode 100644 index 0000000000..0867e7f75d --- /dev/null +++ b/dom/promise/PromiseNativeHandler.h @@ -0,0 +1,66 @@ +/* -*- 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_PromiseNativeHandler_h +#define mozilla_dom_PromiseNativeHandler_h + +#include <functional> +#include "js/TypeDecls.h" +#include "js/Value.h" +#include "mozilla/ErrorResult.h" +#include "mozilla/Maybe.h" +#include "nsISupports.h" + +namespace mozilla::dom { + +/* + * PromiseNativeHandler allows C++ to react to a Promise being + * rejected/resolved. A PromiseNativeHandler can be appended to a Promise using + * Promise::AppendNativeHandler(). + */ +class PromiseNativeHandler : public nsISupports { + protected: + virtual ~PromiseNativeHandler() = default; + + public: + MOZ_CAN_RUN_SCRIPT + virtual void ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue, + ErrorResult& aRv) = 0; + + MOZ_CAN_RUN_SCRIPT + virtual void RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue, + ErrorResult& aRv) = 0; +}; + +// This class is used to set C++ callbacks once a dom Promise a resolved or +// rejected. +class DomPromiseListener final : public PromiseNativeHandler { + NS_DECL_ISUPPORTS + + public: + using CallbackTypeResolved = + std::function<void(JSContext*, JS::Handle<JS::Value>)>; + using CallbackTypeRejected = std::function<void(nsresult)>; + + DomPromiseListener(CallbackTypeResolved&& aResolve, + CallbackTypeRejected&& aReject); + + void Clear(); + + void ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue, + ErrorResult& aRv) override; + void RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue, + ErrorResult& aRv) override; + + private: + ~DomPromiseListener(); + CallbackTypeResolved mResolve; + CallbackTypeRejected mReject; +}; + +} // namespace mozilla::dom + +#endif // mozilla_dom_PromiseNativeHandler_h |