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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /js/xpconnect/src/XPCWrappedJSIterator.cpp | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/xpconnect/src/XPCWrappedJSIterator.cpp')
-rw-r--r-- | js/xpconnect/src/XPCWrappedJSIterator.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/js/xpconnect/src/XPCWrappedJSIterator.cpp b/js/xpconnect/src/XPCWrappedJSIterator.cpp new file mode 100644 index 0000000000..a901050a4b --- /dev/null +++ b/js/xpconnect/src/XPCWrappedJSIterator.cpp @@ -0,0 +1,91 @@ +/* -*- 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 "xpcprivate.h" + +#include "mozilla/ResultExtensions.h" +#include "mozilla/dom/IteratorResultBinding.h" +#include "mozilla/dom/RootedDictionary.h" +#include "mozilla/dom/ScriptSettings.h" + +using namespace mozilla; +using namespace mozilla::dom; +using namespace xpc; + +NS_IMPL_CYCLE_COLLECTION(XPCWrappedJSIterator, mEnum, mGlobal, mNext) + +NS_IMPL_CYCLE_COLLECTING_ADDREF(XPCWrappedJSIterator) +NS_IMPL_CYCLE_COLLECTING_RELEASE(XPCWrappedJSIterator) + +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(XPCWrappedJSIterator) + NS_INTERFACE_MAP_ENTRY(nsISimpleEnumerator) + NS_INTERFACE_MAP_ENTRY(nsISimpleEnumeratorBase) + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, XPCWrappedJSIterator) +NS_INTERFACE_MAP_END + +XPCWrappedJSIterator::XPCWrappedJSIterator(nsIJSEnumerator* aEnum) + : mEnum(aEnum) { + nsCOMPtr<nsIXPConnectWrappedJS> wrapped = do_QueryInterface(aEnum); + MOZ_ASSERT(wrapped); + mGlobal = NativeGlobal(wrapped->GetJSObjectGlobal()); +} + +nsresult XPCWrappedJSIterator::HasMoreElements(bool* aRetVal) { + if (mHasNext.isNothing()) { + AutoJSAPI jsapi; + MOZ_ALWAYS_TRUE(jsapi.Init(mGlobal)); + + JSContext* cx = jsapi.cx(); + + JS::RootedValue val(cx); + MOZ_TRY(mEnum->Next(cx, &val)); + + RootedDictionary<IteratorResult> result(cx); + if (!result.Init(cx, val)) { + return NS_ERROR_FAILURE; + } + + if (!result.mDone) { + if (result.mValue.isObject()) { + JS::RootedObject obj(cx, &result.mValue.toObject()); + + nsresult rv; + if (!XPCConvert::JSObject2NativeInterface(cx, getter_AddRefs(mNext), + obj, &NS_GET_IID(nsISupports), + nullptr, &rv)) { + return rv; + } + } else { + mNext = XPCVariant::newVariant(cx, result.mValue); + } + } + mHasNext = Some(!result.mDone); + } + *aRetVal = *mHasNext; + return NS_OK; +} + +nsresult XPCWrappedJSIterator::GetNext(nsISupports** aRetVal) { + bool hasMore; + MOZ_TRY(HasMoreElements(&hasMore)); + if (!hasMore) { + return NS_ERROR_FAILURE; + } + + mNext.forget(aRetVal); + mHasNext = Nothing(); + return NS_OK; +} + +nsresult XPCWrappedJSIterator::Iterator(nsIJSEnumerator** aRetVal) { + nsCOMPtr<nsIJSEnumerator> jsEnum = mEnum; + jsEnum.forget(aRetVal); + return NS_OK; +} + +nsresult XPCWrappedJSIterator::Entries(const nsID&, nsIJSEnumerator** aRetVal) { + return NS_ERROR_NOT_IMPLEMENTED; +} |