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/* 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 "nsMsgEnumerator.h"
#include "mozilla/dom/IteratorResultBinding.h"
#include "mozilla/dom/RootedDictionary.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/ResultExtensions.h"
#include "nsContentUtils.h"
#include "nsIMsgHdr.h"
#include "nsIMsgThread.h"
using namespace mozilla;
using namespace mozilla::dom;
/**
* Internal class to support iteration over nsBaseMsgEnumerator in javascript.
*/
class JSMsgIterator final : public nsIJSIterator {
NS_DECL_ISUPPORTS
NS_DECL_NSIJSITERATOR
explicit JSMsgIterator(nsBaseMsgEnumerator* aEnumerator)
: mEnumerator(aEnumerator) {}
private:
~JSMsgIterator() = default;
RefPtr<nsBaseMsgEnumerator> mEnumerator;
};
NS_IMETHODIMP JSMsgIterator::Next(JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
// result is object of the form: {value: ..., done: ...}
RootedDictionary<IteratorResult> result(aCx);
// We're really using the enumerator itself as the iterator.
nsCOMPtr<nsIMsgDBHdr> msg;
if (NS_FAILED(mEnumerator->GetNext(getter_AddRefs(msg)))) {
result.mDone = true;
// Leave value unset.
} else {
result.mDone = false;
JS::Rooted<JS::Value> value(aCx);
MOZ_TRY(
nsContentUtils::WrapNative(aCx, msg, &NS_GET_IID(nsIMsgDBHdr), &value));
result.mValue = value;
}
if (!ToJSValue(aCx, result, aResult)) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(JSMsgIterator, nsIJSIterator)
// nsBaseMsgEnumerator implementation.
NS_IMETHODIMP nsBaseMsgEnumerator::Iterator(nsIJSIterator** aResult) {
auto result = MakeRefPtr<JSMsgIterator>(this);
result.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP nsBaseMsgEnumerator::GetNext(nsIMsgDBHdr** aItem) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsBaseMsgEnumerator::HasMoreElements(bool* aResult) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMPL_ISUPPORTS(nsBaseMsgEnumerator, nsIMsgEnumerator)
/**
* Internal class to support iteration over nsBaseMsgThreadEnumerator in
* javascript.
*/
class JSThreadIterator final : public nsIJSIterator {
NS_DECL_ISUPPORTS
NS_DECL_NSIJSITERATOR
explicit JSThreadIterator(nsBaseMsgThreadEnumerator* aEnumerator)
: mEnumerator(aEnumerator) {}
private:
~JSThreadIterator() = default;
RefPtr<nsBaseMsgThreadEnumerator> mEnumerator;
};
NS_IMETHODIMP JSThreadIterator::Next(JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
// result is object of the form: {value: ..., done: ...}
RootedDictionary<IteratorResult> result(aCx);
// We're really using the enumerator itself as the iterator.
nsCOMPtr<nsIMsgThread> msg;
if (NS_FAILED(mEnumerator->GetNext(getter_AddRefs(msg)))) {
result.mDone = true;
// Leave value unset.
} else {
result.mDone = false;
JS::Rooted<JS::Value> value(aCx);
MOZ_TRY(nsContentUtils::WrapNative(aCx, msg, &NS_GET_IID(nsIMsgThread),
&value));
result.mValue = value;
}
if (!ToJSValue(aCx, result, aResult)) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(JSThreadIterator, nsIJSIterator)
// nsBaseMsgThreadEnumerator implementation.
NS_IMETHODIMP nsBaseMsgThreadEnumerator::Iterator(nsIJSIterator** aResult) {
auto result = MakeRefPtr<JSThreadIterator>(this);
result.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP nsBaseMsgThreadEnumerator::GetNext(nsIMsgThread** aItem) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsBaseMsgThreadEnumerator::HasMoreElements(bool* aResult) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMPL_ISUPPORTS(nsBaseMsgThreadEnumerator, nsIMsgThreadEnumerator)
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