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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/. */
#include "IDBKeyRange.h"
#include "Key.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/IDBKeyRangeBinding.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBSharedTypes.h"
namespace mozilla {
namespace dom {
using namespace mozilla::dom::indexedDB;
namespace {
void GetKeyFromJSVal(JSContext* aCx, JS::Handle<JS::Value> aVal, Key& aKey,
ErrorResult& aRv) {
auto result = aKey.SetFromJSVal(aCx, aVal);
if (!result.Is(Ok)) {
aRv = result.ExtractErrorResult(
InvalidMapsTo<NS_ERROR_DOM_INDEXEDDB_DATA_ERR>);
return;
}
if (aKey.IsUnset()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_DATA_ERR);
}
}
} // namespace
IDBKeyRange::IDBKeyRange(nsISupports* aGlobal, bool aLowerOpen, bool aUpperOpen,
bool aIsOnly)
: mGlobal(aGlobal),
mCachedLowerVal(JS::UndefinedValue()),
mCachedUpperVal(JS::UndefinedValue()),
mLowerOpen(aLowerOpen),
mUpperOpen(aUpperOpen),
mIsOnly(aIsOnly),
mHaveCachedLowerVal(false),
mHaveCachedUpperVal(false),
mRooted(false) {
AssertIsOnOwningThread();
}
IDBKeyRange::~IDBKeyRange() { DropJSObjects(); }
IDBLocaleAwareKeyRange::IDBLocaleAwareKeyRange(nsISupports* aGlobal,
bool aLowerOpen, bool aUpperOpen,
bool aIsOnly)
: IDBKeyRange(aGlobal, aLowerOpen, aUpperOpen, aIsOnly) {
AssertIsOnOwningThread();
}
IDBLocaleAwareKeyRange::~IDBLocaleAwareKeyRange() { DropJSObjects(); }
// static
void IDBKeyRange::FromJSVal(JSContext* aCx, JS::Handle<JS::Value> aVal,
RefPtr<IDBKeyRange>* aKeyRange, ErrorResult& aRv) {
MOZ_ASSERT_IF(!aCx, aVal.isUndefined());
MOZ_ASSERT(aKeyRange);
RefPtr<IDBKeyRange> keyRange;
if (aVal.isNullOrUndefined()) {
// undefined and null returns no IDBKeyRange.
*aKeyRange = std::move(keyRange);
return;
}
JS::Rooted<JSObject*> obj(aCx, aVal.isObject() ? &aVal.toObject() : nullptr);
// Unwrap an IDBKeyRange object if possible.
if (obj && NS_SUCCEEDED(UNWRAP_OBJECT(IDBKeyRange, obj, keyRange))) {
MOZ_ASSERT(keyRange);
*aKeyRange = std::move(keyRange);
return;
}
// A valid key returns an 'only' IDBKeyRange.
keyRange = new IDBKeyRange(nullptr, false, false, true);
GetKeyFromJSVal(aCx, aVal, keyRange->Lower(), aRv);
if (!aRv.Failed()) {
*aKeyRange = std::move(keyRange);
}
}
// static
RefPtr<IDBKeyRange> IDBKeyRange::FromSerialized(
const SerializedKeyRange& aKeyRange) {
RefPtr<IDBKeyRange> keyRange =
new IDBKeyRange(nullptr, aKeyRange.lowerOpen(), aKeyRange.upperOpen(),
aKeyRange.isOnly());
keyRange->Lower() = aKeyRange.lower();
if (!keyRange->IsOnly()) {
keyRange->Upper() = aKeyRange.upper();
}
return keyRange;
}
void IDBKeyRange::ToSerialized(SerializedKeyRange& aKeyRange) const {
aKeyRange.lowerOpen() = LowerOpen();
aKeyRange.upperOpen() = UpperOpen();
aKeyRange.isOnly() = IsOnly();
aKeyRange.lower() = Lower();
if (!IsOnly()) {
aKeyRange.upper() = Upper();
}
}
NS_IMPL_CYCLE_COLLECTION_MULTI_ZONE_JSHOLDER_CLASS(IDBKeyRange)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IDBKeyRange)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(IDBKeyRange)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mCachedLowerVal)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mCachedUpperVal)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IDBKeyRange)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
tmp->DropJSObjects();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBKeyRange)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(IDBKeyRange)
NS_IMPL_CYCLE_COLLECTING_RELEASE(IDBKeyRange)
void IDBKeyRange::DropJSObjects() {
if (!mRooted) {
return;
}
mCachedLowerVal.setUndefined();
mCachedUpperVal.setUndefined();
mHaveCachedLowerVal = false;
mHaveCachedUpperVal = false;
mRooted = false;
mozilla::DropJSObjects(this);
}
bool IDBKeyRange::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
JS::MutableHandle<JSObject*> aReflector) {
return IDBKeyRange_Binding::Wrap(aCx, this, aGivenProto, aReflector);
}
bool IDBLocaleAwareKeyRange::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
JS::MutableHandle<JSObject*> aReflector) {
return IDBLocaleAwareKeyRange_Binding::Wrap(aCx, this, aGivenProto,
aReflector);
}
void IDBKeyRange::GetLower(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv) {
AssertIsOnOwningThread();
if (!mHaveCachedLowerVal) {
if (!mRooted) {
mozilla::HoldJSObjects(this);
mRooted = true;
}
aRv = Lower().ToJSVal(aCx, mCachedLowerVal);
if (aRv.Failed()) {
return;
}
mHaveCachedLowerVal = true;
}
aResult.set(mCachedLowerVal);
}
void IDBKeyRange::GetUpper(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv) {
AssertIsOnOwningThread();
if (!mHaveCachedUpperVal) {
if (!mRooted) {
mozilla::HoldJSObjects(this);
mRooted = true;
}
aRv = Upper().ToJSVal(aCx, mCachedUpperVal);
if (aRv.Failed()) {
return;
}
mHaveCachedUpperVal = true;
}
aResult.set(mCachedUpperVal);
}
bool IDBKeyRange::Includes(JSContext* aCx, JS::Handle<JS::Value> aValue,
ErrorResult& aRv) const {
Key key;
GetKeyFromJSVal(aCx, aValue, key, aRv);
if (aRv.Failed()) {
return false;
}
MOZ_ASSERT(!(Lower().IsUnset() && Upper().IsUnset()));
MOZ_ASSERT_IF(IsOnly(), !Lower().IsUnset() && !LowerOpen() &&
Lower() == Upper() && LowerOpen() == UpperOpen());
if (!Lower().IsUnset()) {
switch (Key::CompareKeys(Lower(), key)) {
case 1:
return false;
case 0:
// Identical keys.
return !LowerOpen();
case -1:
if (IsOnly()) {
return false;
}
break;
default:
MOZ_CRASH();
}
}
if (!Upper().IsUnset()) {
switch (Key::CompareKeys(key, Upper())) {
case 1:
return false;
case 0:
// Identical keys.
return !UpperOpen();
case -1:
break;
}
}
return true;
}
// static
RefPtr<IDBKeyRange> IDBKeyRange::Only(const GlobalObject& aGlobal,
JS::Handle<JS::Value> aValue,
ErrorResult& aRv) {
RefPtr<IDBKeyRange> keyRange =
new IDBKeyRange(aGlobal.GetAsSupports(), false, false, true);
GetKeyFromJSVal(aGlobal.Context(), aValue, keyRange->Lower(), aRv);
if (aRv.Failed()) {
return nullptr;
}
return keyRange;
}
// static
RefPtr<IDBKeyRange> IDBKeyRange::LowerBound(const GlobalObject& aGlobal,
JS::Handle<JS::Value> aValue,
bool aOpen, ErrorResult& aRv) {
RefPtr<IDBKeyRange> keyRange =
new IDBKeyRange(aGlobal.GetAsSupports(), aOpen, true, false);
GetKeyFromJSVal(aGlobal.Context(), aValue, keyRange->Lower(), aRv);
if (aRv.Failed()) {
return nullptr;
}
return keyRange;
}
// static
RefPtr<IDBKeyRange> IDBKeyRange::UpperBound(const GlobalObject& aGlobal,
JS::Handle<JS::Value> aValue,
bool aOpen, ErrorResult& aRv) {
RefPtr<IDBKeyRange> keyRange =
new IDBKeyRange(aGlobal.GetAsSupports(), true, aOpen, false);
GetKeyFromJSVal(aGlobal.Context(), aValue, keyRange->Upper(), aRv);
if (aRv.Failed()) {
return nullptr;
}
return keyRange;
}
// static
RefPtr<IDBKeyRange> IDBKeyRange::Bound(const GlobalObject& aGlobal,
JS::Handle<JS::Value> aLower,
JS::Handle<JS::Value> aUpper,
bool aLowerOpen, bool aUpperOpen,
ErrorResult& aRv) {
RefPtr<IDBKeyRange> keyRange =
new IDBKeyRange(aGlobal.GetAsSupports(), aLowerOpen, aUpperOpen, false);
GetKeyFromJSVal(aGlobal.Context(), aLower, keyRange->Lower(), aRv);
if (aRv.Failed()) {
return nullptr;
}
GetKeyFromJSVal(aGlobal.Context(), aUpper, keyRange->Upper(), aRv);
if (aRv.Failed()) {
return nullptr;
}
if (keyRange->Lower() > keyRange->Upper() ||
(keyRange->Lower() == keyRange->Upper() && (aLowerOpen || aUpperOpen))) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_DATA_ERR);
return nullptr;
}
return keyRange;
}
// static
RefPtr<IDBLocaleAwareKeyRange> IDBLocaleAwareKeyRange::Bound(
const GlobalObject& aGlobal, JS::Handle<JS::Value> aLower,
JS::Handle<JS::Value> aUpper, bool aLowerOpen, bool aUpperOpen,
ErrorResult& aRv) {
RefPtr<IDBLocaleAwareKeyRange> keyRange = new IDBLocaleAwareKeyRange(
aGlobal.GetAsSupports(), aLowerOpen, aUpperOpen, false);
GetKeyFromJSVal(aGlobal.Context(), aLower, keyRange->Lower(), aRv);
if (aRv.Failed()) {
return nullptr;
}
GetKeyFromJSVal(aGlobal.Context(), aUpper, keyRange->Upper(), aRv);
if (aRv.Failed()) {
return nullptr;
}
if (keyRange->Lower() == keyRange->Upper() && (aLowerOpen || aUpperOpen)) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_DATA_ERR);
return nullptr;
}
return keyRange;
}
} // namespace dom
} // namespace mozilla