1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/indexedDB/IDBKeyRange.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,306 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "base/basictypes.h"
1.11 +
1.12 +#include "IDBKeyRange.h"
1.13 +
1.14 +#include "nsIXPConnect.h"
1.15 +
1.16 +#include "nsJSUtils.h"
1.17 +#include "nsThreadUtils.h"
1.18 +#include "nsContentUtils.h"
1.19 +#include "nsDOMClassInfoID.h"
1.20 +#include "Key.h"
1.21 +
1.22 +#include "mozilla/dom/IDBKeyRangeBinding.h"
1.23 +#include "mozilla/dom/indexedDB/PIndexedDBIndex.h"
1.24 +#include "mozilla/dom/indexedDB/PIndexedDBObjectStore.h"
1.25 +
1.26 +using namespace mozilla;
1.27 +using namespace mozilla::dom;
1.28 +USING_INDEXEDDB_NAMESPACE
1.29 +using namespace mozilla::dom::indexedDB::ipc;
1.30 +
1.31 +namespace {
1.32 +
1.33 +inline nsresult
1.34 +GetKeyFromJSVal(JSContext* aCx,
1.35 + JS::Handle<JS::Value> aVal,
1.36 + Key& aKey,
1.37 + bool aAllowUnset = false)
1.38 +{
1.39 + nsresult rv = aKey.SetFromJSVal(aCx, aVal);
1.40 + if (NS_FAILED(rv)) {
1.41 + NS_ASSERTION(NS_ERROR_GET_MODULE(rv) == NS_ERROR_MODULE_DOM_INDEXEDDB,
1.42 + "Bad error code!");
1.43 + return rv;
1.44 + }
1.45 +
1.46 + if (aKey.IsUnset() && !aAllowUnset) {
1.47 + return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
1.48 + }
1.49 +
1.50 + return NS_OK;
1.51 +}
1.52 +
1.53 +} // anonymous namespace
1.54 +
1.55 +// static
1.56 +nsresult
1.57 +IDBKeyRange::FromJSVal(JSContext* aCx,
1.58 + JS::Handle<JS::Value> aVal,
1.59 + IDBKeyRange** aKeyRange)
1.60 +{
1.61 + nsRefPtr<IDBKeyRange> keyRange;
1.62 +
1.63 + if (aVal.isNullOrUndefined()) {
1.64 + // undefined and null returns no IDBKeyRange.
1.65 + keyRange.forget(aKeyRange);
1.66 + return NS_OK;
1.67 + }
1.68 +
1.69 + JS::Rooted<JSObject*> obj(aCx, aVal.isObject() ? &aVal.toObject() : nullptr);
1.70 + if (aVal.isPrimitive() || JS_IsArrayObject(aCx, obj) ||
1.71 + JS_ObjectIsDate(aCx, obj)) {
1.72 + // A valid key returns an 'only' IDBKeyRange.
1.73 + keyRange = new IDBKeyRange(nullptr, false, false, true);
1.74 +
1.75 + nsresult rv = GetKeyFromJSVal(aCx, aVal, keyRange->Lower());
1.76 + if (NS_FAILED(rv)) {
1.77 + return rv;
1.78 + }
1.79 + }
1.80 + else {
1.81 + MOZ_ASSERT(aVal.isObject());
1.82 + // An object is not permitted unless it's another IDBKeyRange.
1.83 + if (NS_FAILED(UNWRAP_OBJECT(IDBKeyRange, obj, keyRange))) {
1.84 + return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
1.85 + }
1.86 + }
1.87 +
1.88 + keyRange.forget(aKeyRange);
1.89 + return NS_OK;
1.90 +}
1.91 +
1.92 +// static
1.93 +template <class T>
1.94 +already_AddRefed<IDBKeyRange>
1.95 +IDBKeyRange::FromSerializedKeyRange(const T& aKeyRange)
1.96 +{
1.97 + nsRefPtr<IDBKeyRange> keyRange =
1.98 + new IDBKeyRange(nullptr, aKeyRange.lowerOpen(), aKeyRange.upperOpen(),
1.99 + aKeyRange.isOnly());
1.100 + keyRange->Lower() = aKeyRange.lower();
1.101 + if (!keyRange->IsOnly()) {
1.102 + keyRange->Upper() = aKeyRange.upper();
1.103 + }
1.104 + return keyRange.forget();
1.105 +}
1.106 +
1.107 +template <class T>
1.108 +void
1.109 +IDBKeyRange::ToSerializedKeyRange(T& aKeyRange)
1.110 +{
1.111 + aKeyRange.lowerOpen() = IsLowerOpen();
1.112 + aKeyRange.upperOpen() = IsUpperOpen();
1.113 + aKeyRange.isOnly() = IsOnly();
1.114 +
1.115 + aKeyRange.lower() = Lower();
1.116 + if (!IsOnly()) {
1.117 + aKeyRange.upper() = Upper();
1.118 + }
1.119 +}
1.120 +
1.121 +NS_IMPL_CYCLE_COLLECTION_CLASS(IDBKeyRange)
1.122 +
1.123 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IDBKeyRange)
1.124 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
1.125 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
1.126 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
1.127 +
1.128 +NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(IDBKeyRange)
1.129 + NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(mCachedLowerVal)
1.130 + NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(mCachedUpperVal)
1.131 +NS_IMPL_CYCLE_COLLECTION_TRACE_END
1.132 +
1.133 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IDBKeyRange)
1.134 + NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
1.135 + tmp->DropJSObjects();
1.136 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
1.137 +
1.138 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBKeyRange)
1.139 + NS_INTERFACE_MAP_ENTRY(nsISupports)
1.140 +NS_INTERFACE_MAP_END
1.141 +
1.142 +NS_IMPL_CYCLE_COLLECTING_ADDREF(IDBKeyRange)
1.143 +NS_IMPL_CYCLE_COLLECTING_RELEASE(IDBKeyRange)
1.144 +
1.145 +void
1.146 +IDBKeyRange::DropJSObjects()
1.147 +{
1.148 + if (!mRooted) {
1.149 + return;
1.150 + }
1.151 + mCachedLowerVal = JS::UndefinedValue();
1.152 + mCachedUpperVal = JS::UndefinedValue();
1.153 + mHaveCachedLowerVal = false;
1.154 + mHaveCachedUpperVal = false;
1.155 + mRooted = false;
1.156 + mozilla::DropJSObjects(this);
1.157 +}
1.158 +
1.159 +IDBKeyRange::~IDBKeyRange()
1.160 +{
1.161 + DropJSObjects();
1.162 +}
1.163 +
1.164 +JSObject*
1.165 +IDBKeyRange::WrapObject(JSContext* aCx)
1.166 +{
1.167 + return IDBKeyRangeBinding::Wrap(aCx, this);
1.168 +}
1.169 +
1.170 +void
1.171 +IDBKeyRange::GetLower(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
1.172 + ErrorResult& aRv)
1.173 +{
1.174 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.175 +
1.176 + if (!mHaveCachedLowerVal) {
1.177 + if (!mRooted) {
1.178 + mozilla::HoldJSObjects(this);
1.179 + mRooted = true;
1.180 + }
1.181 +
1.182 + aRv = Lower().ToJSVal(aCx, mCachedLowerVal);
1.183 + if (aRv.Failed()) {
1.184 + return;
1.185 + }
1.186 +
1.187 + mHaveCachedLowerVal = true;
1.188 + }
1.189 +
1.190 + JS::ExposeValueToActiveJS(mCachedLowerVal);
1.191 + aResult.set(mCachedLowerVal);
1.192 +}
1.193 +
1.194 +void
1.195 +IDBKeyRange::GetUpper(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
1.196 + ErrorResult& aRv)
1.197 +{
1.198 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.199 +
1.200 + if (!mHaveCachedUpperVal) {
1.201 + if (!mRooted) {
1.202 + mozilla::HoldJSObjects(this);
1.203 + mRooted = true;
1.204 + }
1.205 +
1.206 + aRv = Upper().ToJSVal(aCx, mCachedUpperVal);
1.207 + if (aRv.Failed()) {
1.208 + return;
1.209 + }
1.210 +
1.211 + mHaveCachedUpperVal = true;
1.212 + }
1.213 +
1.214 + JS::ExposeValueToActiveJS(mCachedUpperVal);
1.215 + aResult.set(mCachedUpperVal);
1.216 +}
1.217 +
1.218 +// static
1.219 +already_AddRefed<IDBKeyRange>
1.220 +IDBKeyRange::Only(const GlobalObject& aGlobal, JSContext* aCx,
1.221 + JS::Handle<JS::Value> aValue, ErrorResult& aRv)
1.222 +{
1.223 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.224 +
1.225 + nsRefPtr<IDBKeyRange> keyRange =
1.226 + new IDBKeyRange(aGlobal.GetAsSupports(), false, false, true);
1.227 +
1.228 + aRv = GetKeyFromJSVal(aCx, aValue, keyRange->Lower());
1.229 + if (aRv.Failed()) {
1.230 + return nullptr;
1.231 + }
1.232 +
1.233 + return keyRange.forget();
1.234 +}
1.235 +
1.236 +// static
1.237 +already_AddRefed<IDBKeyRange>
1.238 +IDBKeyRange::LowerBound(const GlobalObject& aGlobal, JSContext* aCx,
1.239 + JS::Handle<JS::Value> aValue, bool aOpen,
1.240 + ErrorResult& aRv)
1.241 +{
1.242 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.243 +
1.244 + nsRefPtr<IDBKeyRange> keyRange =
1.245 + new IDBKeyRange(aGlobal.GetAsSupports(), aOpen, true, false);
1.246 +
1.247 + aRv = GetKeyFromJSVal(aCx, aValue, keyRange->Lower());
1.248 + if (aRv.Failed()) {
1.249 + return nullptr;
1.250 + }
1.251 +
1.252 + return keyRange.forget();
1.253 +}
1.254 +
1.255 +// static
1.256 +already_AddRefed<IDBKeyRange>
1.257 +IDBKeyRange::UpperBound(const GlobalObject& aGlobal, JSContext* aCx,
1.258 + JS::Handle<JS::Value> aValue, bool aOpen,
1.259 + ErrorResult& aRv)
1.260 +{
1.261 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.262 +
1.263 + nsRefPtr<IDBKeyRange> keyRange =
1.264 + new IDBKeyRange(aGlobal.GetAsSupports(), true, aOpen, false);
1.265 +
1.266 + aRv = GetKeyFromJSVal(aCx, aValue, keyRange->Upper());
1.267 + if (aRv.Failed()) {
1.268 + return nullptr;
1.269 + }
1.270 +
1.271 + return keyRange.forget();
1.272 +}
1.273 +
1.274 +// static
1.275 +already_AddRefed<IDBKeyRange>
1.276 +IDBKeyRange::Bound(const GlobalObject& aGlobal, JSContext* aCx,
1.277 + JS::Handle<JS::Value> aLower, JS::Handle<JS::Value> aUpper,
1.278 + bool aLowerOpen, bool aUpperOpen, ErrorResult& aRv)
1.279 +{
1.280 + MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
1.281 +
1.282 + nsRefPtr<IDBKeyRange> keyRange =
1.283 + new IDBKeyRange(aGlobal.GetAsSupports(), aLowerOpen, aUpperOpen, false);
1.284 +
1.285 + aRv = GetKeyFromJSVal(aCx, aLower, keyRange->Lower());
1.286 + if (aRv.Failed()) {
1.287 + return nullptr;
1.288 + }
1.289 +
1.290 + aRv = GetKeyFromJSVal(aCx, aUpper, keyRange->Upper());
1.291 + if (aRv.Failed()) {
1.292 + return nullptr;
1.293 + }
1.294 +
1.295 + if (keyRange->Lower() > keyRange->Upper() ||
1.296 + (keyRange->Lower() == keyRange->Upper() && (aLowerOpen || aUpperOpen))) {
1.297 + aRv.Throw(NS_ERROR_DOM_INDEXEDDB_DATA_ERR);
1.298 + return nullptr;
1.299 + }
1.300 +
1.301 + return keyRange.forget();
1.302 +}
1.303 +
1.304 +// Explicitly instantiate for all our key range types... Grumble.
1.305 +template already_AddRefed<IDBKeyRange>
1.306 +IDBKeyRange::FromSerializedKeyRange<KeyRange> (const KeyRange& aKeyRange);
1.307 +
1.308 +template void
1.309 +IDBKeyRange::ToSerializedKeyRange<KeyRange> (KeyRange& aKeyRange);
