void
IDBCursor::GetKey(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
MOZ_ASSERT(!mKey.IsUnset() || !mHaveValue);
if (!mHaveValue) {
aResult.setUndefined();
return;
}
if (!mHaveCachedKey) {
if (!mRooted) {
mozilla::HoldJSObjects(this);
mRooted = true;
}
aRv = mKey.ToJSVal(aCx, mCachedKey);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
mHaveCachedKey = true;
}
JS::ExposeValueToActiveJS(mCachedKey);
aResult.set(mCachedKey);
}
void
IDBCursor::GetPrimaryKey(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
if (!mHaveValue) {
aResult.setUndefined();
return;
}
if (!mHaveCachedPrimaryKey) {
if (!mRooted) {
mozilla::HoldJSObjects(this);
mRooted = true;
}
const Key& key =
(mType == Type_ObjectStore || mType == Type_ObjectStoreKey) ?
mKey :
mPrimaryKey;
MOZ_ASSERT(!key.IsUnset());
aRv = key.ToJSVal(aCx, mCachedPrimaryKey);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
mHaveCachedPrimaryKey = true;
}
JS::ExposeValueToActiveJS(mCachedPrimaryKey);
aResult.set(mCachedPrimaryKey);
}
bool
ChromeObjectWrapper::get(JSContext *cx, JS::Handle<JSObject*> wrapper,
JS::Handle<JSObject*> receiver, JS::Handle<jsid> id,
JS::MutableHandle<JS::Value> vp)
{
assertEnteredPolicy(cx, wrapper, id);
vp.setUndefined();
JSPropertyDescriptor desc;
// Only call through to the get trap on the underlying object if we're
// allowed to see the property, and if what we'll find is not on a standard
// prototype.
if (AllowedByBase(cx, wrapper, id, js::Wrapper::GET) &&
!PropIsFromStandardPrototype(cx, wrapper, id))
{
// Call the get trap.
if (!ChromeObjectWrapperBase::get(cx, wrapper, receiver, id, vp))
return false;
// If we found something, we're done.
if (!vp.isUndefined())
return true;
}
// If we have no proto, we're done.
JSObject *wrapperProto;
if (!JS_GetPrototype(cx, wrapper, &wrapperProto))
return false;
if (!wrapperProto)
return true;
// Try the prototype.
MOZ_ASSERT(js::IsObjectInContextCompartment(wrapper, cx));
return js::GetGeneric(cx, wrapperProto, receiver, id, vp.address());
}
void
IDBCursor::GetValue(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
MOZ_ASSERT(mType == Type_ObjectStore || mType == Type_Index);
if (!mHaveValue) {
aResult.setUndefined();
return;
}
if (!mHaveCachedValue) {
if (!mRooted) {
mozilla::HoldJSObjects(this);
mRooted = true;
}
JS::Rooted<JS::Value> val(aCx);
if (NS_WARN_IF(!IDBObjectStore::DeserializeValue(aCx, mCloneInfo, &val))) {
aRv.Throw(NS_ERROR_DOM_DATA_CLONE_ERR);
return;
}
IDBObjectStore::ClearCloneReadInfo(mCloneInfo);
mCachedValue = val;
mHaveCachedValue = true;
}
JS::ExposeValueToActiveJS(mCachedValue);
aResult.set(mCachedValue);
}
bool ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue) override
{
aValue.setUndefined();
mServer->mServices.RemoveElement(mService);
return true;
}
nsresult
FileHelper::GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aVal.setUndefined();
return NS_OK;
}
bool
ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
NS_ENSURE_TRUE(v.type() == BluetoothValue::Tuint32_t, false);
aValue.setInt32(static_cast<int32_t>(v.get_uint32_t()));
return true;
}
virtual bool ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
if (v.type() != BluetoothValue::Tbool) {
BT_WARNING("Not a boolean!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
aValue.setBoolean(v.get_bool());
return true;
}
virtual bool ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
if (v.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
BT_WARNING("Not a BluetoothNamedValue array!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
const InfallibleTArray<BluetoothNamedValue>& values =
v.get_ArrayOfBluetoothNamedValue();
nsTArray<nsRefPtr<BluetoothDevice> > devices;
for (uint32_t i = 0; i < values.Length(); i++) {
const BluetoothValue properties = values[i].value();
if (properties.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
BT_WARNING("Not a BluetoothNamedValue array!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
nsRefPtr<BluetoothDevice> d =
BluetoothDevice::Create(mAdapterPtr->GetOwner(),
mAdapterPtr->GetPath(),
properties);
devices.AppendElement(d);
}
nsresult rv;
nsIScriptContext* sc = mAdapterPtr->GetContextForEventHandlers(&rv);
if (!sc) {
BT_WARNING("Cannot create script context!");
SetError(NS_LITERAL_STRING("BluetoothScriptContextError"));
return false;
}
AutoPushJSContext cx(sc->GetNativeContext());
JSObject* JsDevices = nullptr;
rv = nsTArrayToJSArray(cx, devices, &JsDevices);
if (!JsDevices) {
BT_WARNING("Cannot create JS array!");
SetError(NS_LITERAL_STRING("BluetoothError"));
return false;
}
aValue.setObject(*JsDevices);
return true;
}
bool
ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
if (v.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
BT_WARNING("Not a BluetoothNamedValue array!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
if (!mManagerPtr->GetOwner()) {
BT_WARNING("Bluetooth manager was disconnected from owner window.");
// Stop to create adapter since owner window of Bluetooth manager was
// gone. These is no need to create a DOMEvent target which has no owner
// to reply to.
return false;
}
const InfallibleTArray<BluetoothNamedValue>& values =
v.get_ArrayOfBluetoothNamedValue();
nsRefPtr<BluetoothAdapter> adapter =
BluetoothAdapter::Create(mManagerPtr->GetOwner(), values);
nsresult rv;
nsIScriptContext* sc = mManagerPtr->GetContextForEventHandlers(&rv);
if (!sc) {
BT_WARNING("Cannot create script context!");
SetError(NS_LITERAL_STRING("BluetoothScriptContextError"));
return false;
}
AutoPushJSContext cx(sc->GetNativeContext());
JS::Rooted<JSObject*> scope(cx, sc->GetWindowProxy());
JSAutoCompartment ac(cx, scope);
rv = nsContentUtils::WrapNative(cx, adapter, aValue);
if (NS_FAILED(rv)) {
BT_WARNING("Cannot create native object!");
SetError(NS_LITERAL_STRING("BluetoothNativeObjectError"));
return false;
}
return true;
}
virtual bool ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
if (v.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
BT_WARNING("Not a BluetoothNamedValue array!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
const InfallibleTArray<BluetoothNamedValue>& values =
v.get_ArrayOfBluetoothNamedValue();
nsTArray<nsRefPtr<BluetoothDevice> > devices;
for (uint32_t i = 0; i < values.Length(); i++) {
const BluetoothValue properties = values[i].value();
if (properties.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
BT_WARNING("Not a BluetoothNamedValue array!");
SetError(NS_LITERAL_STRING("BluetoothReplyTypeError"));
return false;
}
nsRefPtr<BluetoothDevice> d =
BluetoothDevice::Create(mAdapterPtr->GetOwner(),
mAdapterPtr->GetPath(),
properties);
devices.AppendElement(d);
}
AutoJSAPI jsapi;
if (!jsapi.Init(mAdapterPtr->GetOwner())) {
BT_WARNING("Failed to initialise AutoJSAPI!");
SetError(NS_LITERAL_STRING("BluetoothAutoJSAPIInitError"));
return false;
}
JSContext* cx = jsapi.cx();
JS::Rooted<JSObject*> JsDevices(cx);
if (NS_FAILED(nsTArrayToJSArray(cx, devices, &JsDevices))) {
BT_WARNING("Cannot create JS array!");
SetError(NS_LITERAL_STRING("BluetoothError"));
return false;
}
aValue.setObject(*JsDevices);
return true;
}
bool
ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
NS_ENSURE_TRUE(v.type() == BluetoothValue::TArrayOfuint8_t, false);
AutoJSAPI jsapi;
NS_ENSURE_TRUE(jsapi.Init(mCharacteristic->GetParentObject()), false);
JSContext* cx = jsapi.cx();
if (!ToJSValue(cx, v.get_ArrayOfuint8_t(), aValue)) {
JS_ClearPendingException(cx);
return false;
}
return true;
}
/* static */ void
ThreadSafeChromeUtils::NondeterministicGetWeakSetKeys(GlobalObject& aGlobal,
JS::Handle<JS::Value> aSet,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aRv)
{
if (!aSet.isObject()) {
aRetval.setUndefined();
} else {
JSContext* cx = aGlobal.Context();
JS::Rooted<JSObject*> objRet(cx);
JS::Rooted<JSObject*> setObj(cx, &aSet.toObject());
if (!JS_NondeterministicGetWeakSetKeys(cx, setObj, &objRet)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
} else {
aRetval.set(objRet ? JS::ObjectValue(*objRet) : JS::UndefinedValue());
}
}
}
bool ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
const BluetoothValue& v = mReply->get_BluetoothReplySuccess().value();
NS_ENSURE_TRUE(v.type() == BluetoothValue::TArrayOfnsString, false);
const InfallibleTArray<nsString>& uuids = v.get_ArrayOfnsString();
AutoJSAPI jsapi;
NS_ENSURE_TRUE(jsapi.Init(mDevice->GetParentObject()), false);
JSContext* cx = jsapi.cx();
if (!ToJSValue(cx, uuids, aValue)) {
BT_WARNING("Cannot create JS array!");
JS_ClearPendingException(cx);
return false;
}
return true;
}
bool
ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
/**
* Unwrap BluetoothReply.BluetoothReplySuccess.BluetoothValue =
* BluetoothNamedValue[]
* |
* |__ BluetoothNamedValue =
* | {"Adapter", BluetoothValue = BluetoothNamedValue[]}
* |
* |__ BluetoothNamedValue =
* | {"Adapter", BluetoothValue = BluetoothNamedValue[]}
* ...
*/
// Extract the array of all adapters' properties
const BluetoothValue& adaptersProperties =
mReply->get_BluetoothReplySuccess().value();
NS_ENSURE_TRUE(adaptersProperties.type() ==
BluetoothValue::TArrayOfBluetoothNamedValue, false);
const InfallibleTArray<BluetoothNamedValue>& adaptersPropertiesArray =
adaptersProperties.get_ArrayOfBluetoothNamedValue();
BT_API2_LOGR("GetAdaptersTask: len[%d]", adaptersPropertiesArray.Length());
// Append a BluetoothAdapter into adapters array for each properties array
uint32_t numAdapters = adaptersPropertiesArray.Length();
for (uint32_t i = 0; i < numAdapters; i++) {
MOZ_ASSERT(adaptersPropertiesArray[i].name().EqualsLiteral("Adapter"));
const BluetoothValue& properties = adaptersPropertiesArray[i].value();
mManager->AppendAdapter(properties);
}
aValue.setUndefined();
return true;
}
bool
ParseSuccessfulReply(JS::MutableHandle<JS::Value> aValue)
{
aValue.setUndefined();
AutoJSAPI jsapi;
NS_ENSURE_TRUE(jsapi.Init(mAdapter->GetParentObject()), false);
JSContext* cx = jsapi.cx();
/**
* Create a new discovery handle and wrap it to return. Each
* discovery handle is one-time-use only.
*/
nsRefPtr<BluetoothDiscoveryHandle> discoveryHandle =
BluetoothDiscoveryHandle::Create(mAdapter->GetParentObject());
if (!ToJSValue(cx, discoveryHandle, aValue)) {
JS_ClearPendingException(cx);
return false;
}
// Set the created discovery handle as the one in use.
mAdapter->SetDiscoveryHandleInUse(discoveryHandle);
return true;
}
nsresult
nsJSUtils::EvaluateString(JSContext* aCx,
JS::SourceBufferHolder& aSrcBuf,
JS::Handle<JSObject*> aScopeObject,
JS::CompileOptions& aCompileOptions,
const EvaluateOptions& aEvaluateOptions,
JS::MutableHandle<JS::Value> aRetValue,
void **aOffThreadToken)
{
PROFILER_LABEL("nsJSUtils", "EvaluateString",
js::ProfileEntry::Category::JS);
MOZ_ASSERT_IF(aCompileOptions.versionSet,
aCompileOptions.version != JSVERSION_UNKNOWN);
MOZ_ASSERT_IF(aEvaluateOptions.coerceToString, aEvaluateOptions.needResult);
MOZ_ASSERT_IF(!aEvaluateOptions.reportUncaught, aEvaluateOptions.needResult);
MOZ_ASSERT(aCx == nsContentUtils::GetCurrentJSContext());
MOZ_ASSERT(aSrcBuf.get());
// Unfortunately, the JS engine actually compiles scripts with a return value
// in a different, less efficient way. Furthermore, it can't JIT them in many
// cases. So we need to be explicitly told whether the caller cares about the
// return value. Callers can do this by calling the other overload of
// EvaluateString() which calls this function with aEvaluateOptions.needResult
// set to false.
aRetValue.setUndefined();
JS::ExposeObjectToActiveJS(aScopeObject);
nsAutoMicroTask mt;
nsresult rv = NS_OK;
bool ok = false;
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
NS_ENSURE_TRUE(ssm->ScriptAllowed(js::GetGlobalForObjectCrossCompartment(aScopeObject)), NS_OK);
mozilla::Maybe<AutoDontReportUncaught> dontReport;
if (!aEvaluateOptions.reportUncaught) {
// We need to prevent AutoLastFrameCheck from reporting and clearing
// any pending exceptions.
dontReport.emplace(aCx);
}
// Scope the JSAutoCompartment so that we can later wrap the return value
// into the caller's cx.
{
JSAutoCompartment ac(aCx, aScopeObject);
JS::Rooted<JSObject*> rootedScope(aCx, aScopeObject);
if (aOffThreadToken) {
JS::Rooted<JSScript*>
script(aCx, JS::FinishOffThreadScript(aCx, JS_GetRuntime(aCx), *aOffThreadToken));
*aOffThreadToken = nullptr; // Mark the token as having been finished.
if (script) {
if (aEvaluateOptions.needResult) {
ok = JS_ExecuteScript(aCx, rootedScope, script, aRetValue);
} else {
ok = JS_ExecuteScript(aCx, rootedScope, script);
}
} else {
ok = false;
}
} else {
if (aEvaluateOptions.needResult) {
ok = JS::Evaluate(aCx, rootedScope, aCompileOptions,
aSrcBuf, aRetValue);
} else {
ok = JS::Evaluate(aCx, rootedScope, aCompileOptions,
aSrcBuf);
}
}
if (ok && aEvaluateOptions.coerceToString && !aRetValue.isUndefined()) {
JS::Rooted<JS::Value> value(aCx, aRetValue);
JSString* str = JS::ToString(aCx, value);
ok = !!str;
aRetValue.set(ok ? JS::StringValue(str) : JS::UndefinedValue());
}
}
if (!ok) {
if (aEvaluateOptions.reportUncaught) {
ReportPendingException(aCx);
if (aEvaluateOptions.needResult) {
aRetValue.setUndefined();
}
} else {
rv = JS_IsExceptionPending(aCx) ? NS_ERROR_FAILURE
: NS_ERROR_OUT_OF_MEMORY;
JS::Rooted<JS::Value> exn(aCx);
JS_GetPendingException(aCx, &exn);
if (aEvaluateOptions.needResult) {
aRetValue.set(exn);
}
JS_ClearPendingException(aCx);
}
}
// Wrap the return value into whatever compartment aCx was in.
if (aEvaluateOptions.needResult) {
JS::Rooted<JS::Value> v(aCx, aRetValue);
if (!JS_WrapValue(aCx, &v)) {
return NS_ERROR_OUT_OF_MEMORY;
}
aRetValue.set(v);
}
return rv;
}
nsresult
nsJSUtils::EvaluateString(JSContext* aCx,
JS::SourceBufferHolder& aSrcBuf,
JS::Handle<JSObject*> aEvaluationGlobal,
JS::CompileOptions& aCompileOptions,
const EvaluateOptions& aEvaluateOptions,
JS::MutableHandle<JS::Value> aRetValue,
void **aOffThreadToken)
{
PROFILER_LABEL("nsJSUtils", "EvaluateString",
js::ProfileEntry::Category::JS);
MOZ_ASSERT(JS::ContextOptionsRef(aCx).autoJSAPIOwnsErrorReporting(),
"Caller must own error reporting");
MOZ_ASSERT_IF(aCompileOptions.versionSet,
aCompileOptions.version != JSVERSION_UNKNOWN);
MOZ_ASSERT(aCx == nsContentUtils::GetCurrentJSContext());
MOZ_ASSERT(aSrcBuf.get());
MOZ_ASSERT(js::GetGlobalForObjectCrossCompartment(aEvaluationGlobal) ==
aEvaluationGlobal);
MOZ_ASSERT_IF(aOffThreadToken, aCompileOptions.noScriptRval);
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(nsContentUtils::IsInMicroTask());
// Unfortunately, the JS engine actually compiles scripts with a return value
// in a different, less efficient way. Furthermore, it can't JIT them in many
// cases. So we need to be explicitly told whether the caller cares about the
// return value. Callers can do this by calling the other overload of
// EvaluateString() which calls this function with
// aCompileOptions.noScriptRval set to true.
aRetValue.setUndefined();
nsresult rv = NS_OK;
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
NS_ENSURE_TRUE(ssm->ScriptAllowed(aEvaluationGlobal), NS_OK);
bool ok = true;
// Scope the JSAutoCompartment so that we can later wrap the return value
// into the caller's cx.
{
JSAutoCompartment ac(aCx, aEvaluationGlobal);
// Now make sure to wrap the scope chain into the right compartment.
JS::AutoObjectVector scopeChain(aCx);
if (!scopeChain.reserve(aEvaluateOptions.scopeChain.length())) {
return NS_ERROR_OUT_OF_MEMORY;
}
for (size_t i = 0; i < aEvaluateOptions.scopeChain.length(); ++i) {
JS::ExposeObjectToActiveJS(aEvaluateOptions.scopeChain[i]);
scopeChain.infallibleAppend(aEvaluateOptions.scopeChain[i]);
if (!JS_WrapObject(aCx, scopeChain[i])) {
ok = false;
break;
}
}
if (ok && aOffThreadToken) {
JS::Rooted<JSScript*>
script(aCx, JS::FinishOffThreadScript(aCx, JS_GetRuntime(aCx), *aOffThreadToken));
*aOffThreadToken = nullptr; // Mark the token as having been finished.
if (script) {
ok = JS_ExecuteScript(aCx, scopeChain, script);
} else {
ok = false;
}
} else if (ok) {
ok = JS::Evaluate(aCx, scopeChain, aCompileOptions, aSrcBuf, aRetValue);
}
}
if (!ok) {
if (JS_IsExceptionPending(aCx)) {
rv = NS_SUCCESS_DOM_SCRIPT_EVALUATION_THREW;
} else {
rv = NS_SUCCESS_DOM_SCRIPT_EVALUATION_THREW_UNCATCHABLE;
}
if (!aCompileOptions.noScriptRval) {
aRetValue.setUndefined();
}
}
// Wrap the return value into whatever compartment aCx was in.
if (ok && !aCompileOptions.noScriptRval) {
if (!JS_WrapValue(aCx, aRetValue)) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
return rv;
}
