gecko-dev/dom/workers/WorkerScope.cpp
Peter Van der Beken 669602b5e0 Fix for bug 778152 (Content window does not have an XMLHttpRequest property when accessed via an Xray wrapper in a subscript). r=bz.
Switch from using the interface objects from the Xrays compartment to wrapping
interface objects and interface prototype objects in Xrays. Make dom binding
Xrays deal with both instance objects and interface and interface prototype
objects.
2012-10-09 20:50:27 +02:00

1010 lines
26 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=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 "WorkerScope.h"
#include "jsapi.h"
#include "jsdbgapi.h"
#include "mozilla/Util.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/EventTargetBinding.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/FileReaderSyncBinding.h"
#include "mozilla/dom/XMLHttpRequestBinding.h"
#include "mozilla/dom/XMLHttpRequestUploadBinding.h"
#include "mozilla/OSFileConstants.h"
#include "nsTraceRefcnt.h"
#include "xpcpublic.h"
#ifdef ANDROID
#include <android/log.h>
#endif
#include "ChromeWorkerScope.h"
#include "Events.h"
#include "EventListenerManager.h"
#include "EventTarget.h"
#include "Exceptions.h"
#include "File.h"
#include "FileReaderSync.h"
#include "Location.h"
#include "ImageData.h"
#include "Navigator.h"
#include "Principal.h"
#include "ScriptLoader.h"
#include "Worker.h"
#include "WorkerPrivate.h"
#include "XMLHttpRequest.h"
#include "WorkerInlines.h"
#define PROPERTY_FLAGS \
(JSPROP_ENUMERATE | JSPROP_SHARED)
#define FUNCTION_FLAGS \
JSPROP_ENUMERATE
using namespace mozilla;
USING_WORKERS_NAMESPACE
namespace {
class WorkerGlobalScope : public EventTarget
{
static JSClass sClass;
static JSPropertySpec sProperties[];
static JSFunctionSpec sFunctions[];
enum
{
SLOT_wrappedScope = 0,
SLOT_wrappedFunction
};
enum
{
SLOT_location = 0,
SLOT_navigator,
SLOT_COUNT
};
// Must be traced!
jsval mSlots[SLOT_COUNT];
enum
{
STRING_onerror = 0,
STRING_onclose,
STRING_COUNT
};
static const char* const sEventStrings[STRING_COUNT];
protected:
WorkerPrivate* mWorker;
public:
static JSClass*
Class()
{
return &sClass;
}
static JSObject*
InitClass(JSContext* aCx, JSObject* aObj, JSObject* aParentProto)
{
return JS_InitClass(aCx, aObj, aParentProto, Class(), Construct, 0,
sProperties, sFunctions, NULL, NULL);
}
using EventTarget::GetEventListener;
using EventTarget::SetEventListener;
protected:
WorkerGlobalScope(JSContext* aCx, WorkerPrivate* aWorker)
: EventTarget(aCx), mWorker(aWorker)
{
MOZ_COUNT_CTOR(mozilla::dom::workers::WorkerGlobalScope);
for (int32_t i = 0; i < SLOT_COUNT; i++) {
mSlots[i] = JSVAL_VOID;
}
}
~WorkerGlobalScope()
{
MOZ_COUNT_DTOR(mozilla::dom::workers::WorkerGlobalScope);
}
virtual void
_trace(JSTracer* aTrc) MOZ_OVERRIDE
{
for (int32_t i = 0; i < SLOT_COUNT; i++) {
JS_CALL_VALUE_TRACER(aTrc, mSlots[i], "WorkerGlobalScope instance slot");
}
mWorker->TraceInternal(aTrc);
EventTarget::_trace(aTrc);
}
virtual void
_finalize(JSFreeOp* aFop) MOZ_OVERRIDE
{
EventTarget::_finalize(aFop);
}
private:
static JSBool
GetEventListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
JS_ASSERT(JSID_IS_INT(aIdval));
JS_ASSERT(JSID_TO_INT(aIdval) >= 0 && JSID_TO_INT(aIdval) < STRING_COUNT);
const char* name = sEventStrings[JSID_TO_INT(aIdval)];
WorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
ErrorResult rv;
JSObject* listener =
scope->GetEventListener(NS_ConvertASCIItoUTF16(name + 2), rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to get event listener!");
return false;
}
aVp.set(listener ? OBJECT_TO_JSVAL(listener) : JSVAL_NULL);
return true;
}
static JSBool
SetEventListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSBool aStrict,
JSMutableHandleValue aVp)
{
JS_ASSERT(JSID_IS_INT(aIdval));
JS_ASSERT(JSID_TO_INT(aIdval) >= 0 && JSID_TO_INT(aIdval) < STRING_COUNT);
const char* name = sEventStrings[JSID_TO_INT(aIdval)];
WorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
if (JSVAL_IS_PRIMITIVE(aVp)) {
JS_ReportError(aCx, "Not an event listener!");
return false;
}
ErrorResult rv;
scope->SetEventListener(NS_ConvertASCIItoUTF16(name + 2),
JSVAL_TO_OBJECT(aVp), rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to set event listener!");
return false;
}
return true;
}
static WorkerGlobalScope*
GetInstancePrivate(JSContext* aCx, JSObject* aObj, const char* aFunctionName);
static JSBool
Construct(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL, JSMSG_WRONG_CONSTRUCTOR,
sClass.name);
return false;
}
static JSBool
GetSelf(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
if (!GetInstancePrivate(aCx, aObj, "self")) {
return false;
}
aVp.set(OBJECT_TO_JSVAL(aObj));
return true;
}
static JSBool
GetLocation(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
WorkerGlobalScope* scope =
GetInstancePrivate(aCx, aObj, sProperties[SLOT_location].name);
if (!scope) {
return false;
}
if (JSVAL_IS_VOID(scope->mSlots[SLOT_location])) {
JSString* href, *protocol, *host, *hostname;
JSString* port, *pathname, *search, *hash;
WorkerPrivate::LocationInfo& info = scope->mWorker->GetLocationInfo();
#define COPY_STRING(_jsstr, _cstr) \
if (info. _cstr .IsEmpty()) { \
_jsstr = NULL; \
} \
else { \
if (!(_jsstr = JS_NewStringCopyN(aCx, info. _cstr .get(), \
info. _cstr .Length()))) { \
return false; \
} \
info. _cstr .Truncate(); \
}
COPY_STRING(href, mHref);
COPY_STRING(protocol, mProtocol);
COPY_STRING(host, mHost);
COPY_STRING(hostname, mHostname);
COPY_STRING(port, mPort);
COPY_STRING(pathname, mPathname);
COPY_STRING(search, mSearch);
COPY_STRING(hash, mHash);
#undef COPY_STRING
JSObject* location = location::Create(aCx, href, protocol, host, hostname,
port, pathname, search, hash);
if (!location) {
return false;
}
scope->mSlots[SLOT_location] = OBJECT_TO_JSVAL(location);
}
aVp.set(scope->mSlots[SLOT_location]);
return true;
}
static JSBool
UnwrapErrorEvent(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JS_ASSERT(aArgc == 1);
JS_ASSERT((JS_ARGV(aCx, aVp)[0]).isObject());
JSObject* wrapper = &JS_CALLEE(aCx, aVp).toObject();
JS_ASSERT(JS_ObjectIsFunction(aCx, wrapper));
jsval scope = js::GetFunctionNativeReserved(wrapper, SLOT_wrappedScope);
jsval listener = js::GetFunctionNativeReserved(wrapper, SLOT_wrappedFunction);
JS_ASSERT(scope.isObject());
JSObject* event = &JS_ARGV(aCx, aVp)[0].toObject();
jsval argv[3] = { JSVAL_VOID, JSVAL_VOID, JSVAL_VOID };
if (!JS_GetProperty(aCx, event, "message", &argv[0]) ||
!JS_GetProperty(aCx, event, "filename", &argv[1]) ||
!JS_GetProperty(aCx, event, "lineno", &argv[2])) {
return false;
}
jsval rval = JSVAL_VOID;
if (!JS_CallFunctionValue(aCx, JSVAL_TO_OBJECT(scope), listener,
ArrayLength(argv), argv, &rval)) {
JS_ReportPendingException(aCx);
return false;
}
if (JSVAL_IS_BOOLEAN(rval) && JSVAL_TO_BOOLEAN(rval) &&
!JS_CallFunctionName(aCx, event, "preventDefault", 0, NULL, &rval)) {
return false;
}
return true;
}
static JSBool
GetOnErrorListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
const char* name = sEventStrings[STRING_onerror];
WorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
ErrorResult rv;
JSObject* adaptor =
scope->GetEventListener(NS_ConvertASCIItoUTF16(name + 2), rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to get event listener!");
return false;
}
if (!adaptor) {
aVp.setNull();
return true;
}
aVp.set(js::GetFunctionNativeReserved(adaptor, SLOT_wrappedFunction));
JS_ASSERT(!JSVAL_IS_PRIMITIVE(aVp));
return true;
}
static JSBool
SetOnErrorListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval,
JSBool aStrict, JSMutableHandleValue aVp)
{
const char* name = sEventStrings[STRING_onerror];
WorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
if (JSVAL_IS_PRIMITIVE(aVp)) {
JS_ReportError(aCx, "Not an event listener!");
return false;
}
JSFunction* adaptor =
js::NewFunctionWithReserved(aCx, UnwrapErrorEvent, 1, 0,
JS_GetGlobalObject(aCx), "unwrap");
if (!adaptor) {
return false;
}
JSObject* listener = JS_GetFunctionObject(adaptor);
if (!listener) {
return false;
}
js::SetFunctionNativeReserved(listener, SLOT_wrappedScope,
OBJECT_TO_JSVAL(aObj));
js::SetFunctionNativeReserved(listener, SLOT_wrappedFunction, aVp);
ErrorResult rv;
scope->SetEventListener(NS_ConvertASCIItoUTF16(name + 2), listener, rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to set event listener!");
return false;
}
return true;
}
static JSBool
GetNavigator(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
WorkerGlobalScope* scope =
GetInstancePrivate(aCx, aObj, sProperties[SLOT_navigator].name);
if (!scope) {
return false;
}
if (JSVAL_IS_VOID(scope->mSlots[SLOT_navigator])) {
JSObject* navigator = navigator::Create(aCx);
if (!navigator) {
return false;
}
scope->mSlots[SLOT_navigator] = OBJECT_TO_JSVAL(navigator);
}
aVp.set(scope->mSlots[SLOT_navigator]);
return true;
}
static JSBool
Close(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[0].name);
if (!scope) {
return false;
}
return scope->mWorker->CloseInternal(aCx);
}
static JSBool
ImportScripts(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[1].name);
if (!scope) {
return false;
}
if (aArgc && !scriptloader::Load(aCx, aArgc, JS_ARGV(aCx, aVp))) {
return false;
}
return true;
}
static JSBool
SetTimeout(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[2].name);
if (!scope) {
return false;
}
jsval dummy;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "v", &dummy)) {
return false;
}
return scope->mWorker->SetTimeout(aCx, aArgc, aVp, false);
}
static JSBool
ClearTimeout(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[3].name);
if (!scope) {
return false;
}
uint32_t id;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "u", &id)) {
return false;
}
return scope->mWorker->ClearTimeout(aCx, id);
}
static JSBool
SetInterval(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[4].name);
if (!scope) {
return false;
}
jsval dummy;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "v", &dummy)) {
return false;
}
return scope->mWorker->SetTimeout(aCx, aArgc, aVp, true);
}
static JSBool
ClearInterval(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
WorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, sFunctions[5].name);
if (!scope) {
return false;
}
uint32_t id;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "u", &id)) {
return false;
}
return scope->mWorker->ClearTimeout(aCx, id);
}
static JSBool
Dump(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
if (!GetInstancePrivate(aCx, obj, sFunctions[6].name)) {
return false;
}
if (aArgc) {
JSString* str = JS_ValueToString(aCx, JS_ARGV(aCx, aVp)[0]);
if (!str) {
return false;
}
JSAutoByteString buffer(aCx, str);
if (!buffer) {
return false;
}
#ifdef ANDROID
__android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", buffer.ptr());
#endif
fputs(buffer.ptr(), stdout);
fflush(stdout);
}
return true;
}
static JSBool
AtoB(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
if (!GetInstancePrivate(aCx, obj, sFunctions[7].name)) {
return false;
}
jsval string;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "v", &string)) {
return false;
}
jsval result;
if (!xpc::Base64Decode(aCx, string, &result)) {
return false;
}
JS_SET_RVAL(aCx, aVp, result);
return true;
}
static JSBool
BtoA(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
if (!GetInstancePrivate(aCx, obj, sFunctions[8].name)) {
return false;
}
jsval binary;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "v", &binary)) {
return false;
}
jsval result;
if (!xpc::Base64Encode(aCx, binary, &result)) {
return false;
}
JS_SET_RVAL(aCx, aVp, result);
return true;
}
};
JSClass WorkerGlobalScope::sClass = {
"WorkerGlobalScope",
0,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub
};
JSPropertySpec WorkerGlobalScope::sProperties[] = {
{ "location", SLOT_location, PROPERTY_FLAGS, JSOP_WRAPPER(GetLocation),
JSOP_WRAPPER(js_GetterOnlyPropertyStub) },
{ sEventStrings[STRING_onerror], STRING_onerror, PROPERTY_FLAGS,
JSOP_WRAPPER(GetOnErrorListener), JSOP_WRAPPER(SetOnErrorListener) },
{ sEventStrings[STRING_onclose], STRING_onclose, PROPERTY_FLAGS,
JSOP_WRAPPER(GetEventListener), JSOP_WRAPPER(SetEventListener) },
{ "navigator", SLOT_navigator, PROPERTY_FLAGS, JSOP_WRAPPER(GetNavigator),
JSOP_WRAPPER(js_GetterOnlyPropertyStub) },
{ "self", 0, PROPERTY_FLAGS, JSOP_WRAPPER(GetSelf), JSOP_WRAPPER(js_GetterOnlyPropertyStub) },
{ 0, 0, 0, JSOP_NULLWRAPPER, JSOP_NULLWRAPPER }
};
JSFunctionSpec WorkerGlobalScope::sFunctions[] = {
JS_FN("close", Close, 0, FUNCTION_FLAGS),
JS_FN("importScripts", ImportScripts, 1, FUNCTION_FLAGS),
JS_FN("setTimeout", SetTimeout, 1, FUNCTION_FLAGS),
JS_FN("clearTimeout", ClearTimeout, 1, FUNCTION_FLAGS),
JS_FN("setInterval", SetInterval, 1, FUNCTION_FLAGS),
JS_FN("clearInterval", ClearTimeout, 1, FUNCTION_FLAGS),
JS_FN("dump", Dump, 1, FUNCTION_FLAGS),
JS_FN("atob", AtoB, 1, FUNCTION_FLAGS),
JS_FN("btoa", BtoA, 1, FUNCTION_FLAGS),
JS_FS_END
};
const char* const WorkerGlobalScope::sEventStrings[STRING_COUNT] = {
"onerror",
"onclose"
};
class DedicatedWorkerGlobalScope : public WorkerGlobalScope
{
static DOMJSClass sClass;
static JSPropertySpec sProperties[];
static JSFunctionSpec sFunctions[];
enum
{
STRING_onmessage = 0,
STRING_COUNT
};
static const char* const sEventStrings[STRING_COUNT];
public:
static JSClass*
Class()
{
return sClass.ToJSClass();
}
static JSObject*
InitClass(JSContext* aCx, JSObject* aObj, JSObject* aParentProto)
{
return JS_InitClass(aCx, aObj, aParentProto, Class(), Construct, 0,
sProperties, sFunctions, NULL, NULL);
}
static JSBool
InitPrivate(JSContext* aCx, JSObject* aObj, WorkerPrivate* aWorkerPrivate)
{
JS_ASSERT(JS_GetClass(aObj) == Class());
dom::AllocateProtoAndIfaceCache(aObj);
nsRefPtr<DedicatedWorkerGlobalScope> scope =
new DedicatedWorkerGlobalScope(aCx, aWorkerPrivate);
js::SetReservedSlot(aObj, DOM_OBJECT_SLOT, PRIVATE_TO_JSVAL(scope));
scope->SetIsDOMBinding();
scope->SetWrapper(aObj);
scope.forget();
return true;
}
protected:
DedicatedWorkerGlobalScope(JSContext* aCx, WorkerPrivate* aWorker)
: WorkerGlobalScope(aCx, aWorker)
{
MOZ_COUNT_CTOR(mozilla::dom::workers::DedicatedWorkerGlobalScope);
}
~DedicatedWorkerGlobalScope()
{
MOZ_COUNT_DTOR(mozilla::dom::workers::DedicatedWorkerGlobalScope);
}
private:
using EventTarget::GetEventListener;
using EventTarget::SetEventListener;
static JSBool
GetEventListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSMutableHandleValue aVp)
{
JS_ASSERT(JSID_IS_INT(aIdval));
JS_ASSERT(JSID_TO_INT(aIdval) >= 0 && JSID_TO_INT(aIdval) < STRING_COUNT);
const char* name = sEventStrings[JSID_TO_INT(aIdval)];
DedicatedWorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
ErrorResult rv;
JSObject* listener =
scope->GetEventListener(NS_ConvertASCIItoUTF16(name + 2), rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to get event listener!");
return false;
}
aVp.set(listener ? OBJECT_TO_JSVAL(listener) : JSVAL_NULL);
return true;
}
static JSBool
SetEventListener(JSContext* aCx, JSHandleObject aObj, JSHandleId aIdval, JSBool aStrict,
JSMutableHandleValue aVp)
{
JS_ASSERT(JSID_IS_INT(aIdval));
JS_ASSERT(JSID_TO_INT(aIdval) >= 0 && JSID_TO_INT(aIdval) < STRING_COUNT);
const char* name = sEventStrings[JSID_TO_INT(aIdval)];
DedicatedWorkerGlobalScope* scope = GetInstancePrivate(aCx, aObj, name);
if (!scope) {
return false;
}
if (JSVAL_IS_PRIMITIVE(aVp)) {
JS_ReportError(aCx, "Not an event listener!");
return false;
}
ErrorResult rv;
scope->SetEventListener(NS_ConvertASCIItoUTF16(name + 2),
JSVAL_TO_OBJECT(aVp), rv);
if (rv.Failed()) {
JS_ReportError(aCx, "Failed to set event listener!");
return false;
}
return true;
}
static DedicatedWorkerGlobalScope*
GetInstancePrivate(JSContext* aCx, JSObject* aObj, const char* aFunctionName)
{
JSClass* classPtr = JS_GetClass(aObj);
if (classPtr == Class()) {
return UnwrapDOMObject<DedicatedWorkerGlobalScope>(aObj,
eRegularDOMObject);
}
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL,
JSMSG_INCOMPATIBLE_PROTO, Class()->name, aFunctionName,
classPtr->name);
return NULL;
}
static JSBool
Construct(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL, JSMSG_WRONG_CONSTRUCTOR,
Class()->name);
return false;
}
static JSBool
Resolve(JSContext* aCx, JSHandleObject aObj, JSHandleId aId, unsigned aFlags,
JSMutableHandleObject aObjp)
{
JSBool resolved;
if (!JS_ResolveStandardClass(aCx, aObj, aId, &resolved)) {
return false;
}
aObjp.set(resolved ? aObj.get() : NULL);
return true;
}
static void
Finalize(JSFreeOp* aFop, JSObject* aObj)
{
JS_ASSERT(JS_GetClass(aObj) == Class());
DedicatedWorkerGlobalScope* scope =
UnwrapDOMObject<DedicatedWorkerGlobalScope>(aObj, eRegularDOMObject);
if (scope) {
DestroyProtoAndIfaceCache(aObj);
scope->_finalize(aFop);
}
}
static void
Trace(JSTracer* aTrc, JSObject* aObj)
{
JS_ASSERT(JS_GetClass(aObj) == Class());
DedicatedWorkerGlobalScope* scope =
UnwrapDOMObject<DedicatedWorkerGlobalScope>(aObj, eRegularDOMObject);
if (scope) {
TraceProtoAndIfaceCache(aTrc, aObj);
scope->_trace(aTrc);
}
}
static JSBool
PostMessage(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
const char*& name = sFunctions[0].name;
DedicatedWorkerGlobalScope* scope = GetInstancePrivate(aCx, obj, name);
if (!scope) {
return false;
}
jsval message;
jsval transferable = JSVAL_VOID;
if (!JS_ConvertArguments(aCx, aArgc, JS_ARGV(aCx, aVp), "v/v",
&message, &transferable)) {
return false;
}
return scope->mWorker->PostMessageToParent(aCx, message, transferable);
}
};
MOZ_STATIC_ASSERT(prototypes::MaxProtoChainLength == 3,
"The MaxProtoChainLength must match our manual DOMJSClasses");
DOMJSClass DedicatedWorkerGlobalScope::sClass = {
{
// We don't have to worry about Xray expando slots here because we'll never
// have an Xray wrapper to a worker global scope.
"DedicatedWorkerGlobalScope",
JSCLASS_DOM_GLOBAL | JSCLASS_IS_DOMJSCLASS | JSCLASS_IMPLEMENTS_BARRIERS |
JSCLASS_GLOBAL_FLAGS_WITH_SLOTS(3) | JSCLASS_NEW_RESOLVE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, reinterpret_cast<JSResolveOp>(Resolve), JS_ConvertStub,
Finalize, NULL, NULL, NULL, NULL, Trace
},
{
{ prototypes::id::EventTarget_workers, prototypes::id::_ID_Count,
prototypes::id::_ID_Count },
false,
&sWorkerNativePropertyHooks
}
};
JSPropertySpec DedicatedWorkerGlobalScope::sProperties[] = {
{ sEventStrings[STRING_onmessage], STRING_onmessage, PROPERTY_FLAGS,
JSOP_WRAPPER(GetEventListener), JSOP_WRAPPER(SetEventListener) },
{ 0, 0, 0, JSOP_NULLWRAPPER, JSOP_NULLWRAPPER }
};
JSFunctionSpec DedicatedWorkerGlobalScope::sFunctions[] = {
JS_FN("postMessage", PostMessage, 1, FUNCTION_FLAGS),
JS_FS_END
};
const char* const DedicatedWorkerGlobalScope::sEventStrings[STRING_COUNT] = {
"onmessage",
};
WorkerGlobalScope*
WorkerGlobalScope::GetInstancePrivate(JSContext* aCx, JSObject* aObj,
const char* aFunctionName)
{
JSClass* classPtr = JS_GetClass(aObj);
// We can only make DedicatedWorkerGlobalScope, not WorkerGlobalScope, so this
// should never happen.
JS_ASSERT(classPtr != Class());
if (classPtr == DedicatedWorkerGlobalScope::Class()) {
return UnwrapDOMObject<DedicatedWorkerGlobalScope>(aObj, eRegularDOMObject);
}
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL, JSMSG_INCOMPATIBLE_PROTO,
sClass.name, aFunctionName, classPtr->name);
return NULL;
}
} /* anonymous namespace */
BEGIN_WORKERS_NAMESPACE
JSObject*
CreateDedicatedWorkerGlobalScope(JSContext* aCx)
{
using namespace mozilla::dom;
WorkerPrivate* worker = GetWorkerPrivateFromContext(aCx);
JS_ASSERT(worker);
JSObject* global =
JS_NewGlobalObject(aCx, DedicatedWorkerGlobalScope::Class(),
GetWorkerPrincipal());
if (!global) {
return NULL;
}
JSAutoCompartment ac(aCx, global);
// Make the private slots now so that all our instance checks succeed.
if (!DedicatedWorkerGlobalScope::InitPrivate(aCx, global, worker)) {
return NULL;
}
// Proto chain should be:
// global -> DedicatedWorkerGlobalScope
// -> WorkerGlobalScope
// -> EventTarget
// -> Object
JSObject* eventTargetProto =
EventTargetBinding_workers::GetProtoObject(aCx, global);
if (!eventTargetProto) {
return NULL;
}
JSObject* scopeProto =
WorkerGlobalScope::InitClass(aCx, global, eventTargetProto);
if (!scopeProto) {
return NULL;
}
JSObject* dedicatedScopeProto =
DedicatedWorkerGlobalScope::InitClass(aCx, global, scopeProto);
if (!dedicatedScopeProto) {
return NULL;
}
if (!JS_SetPrototype(aCx, global, dedicatedScopeProto)) {
return NULL;
}
JSObject* workerProto = worker::InitClass(aCx, global, eventTargetProto,
false);
if (!workerProto) {
return NULL;
}
if (worker->IsChromeWorker() &&
(!chromeworker::InitClass(aCx, global, workerProto, false) ||
!DefineChromeWorkerFunctions(aCx, global))) {
return NULL;
}
if (!DefineOSFileConstants(aCx, global)) {
return NULL;
}
// Init other classes we care about.
if (!events::InitClasses(aCx, global, false) ||
!file::InitClasses(aCx, global) ||
!exceptions::InitClasses(aCx, global) ||
!location::InitClass(aCx, global) ||
!imagedata::InitClass(aCx, global) ||
!navigator::InitClass(aCx, global)) {
return NULL;
}
// Init other paris-bindings.
if (!FileReaderSyncBinding_workers::GetConstructorObject(aCx, global) ||
!XMLHttpRequestBinding_workers::GetConstructorObject(aCx, global) ||
!XMLHttpRequestUploadBinding_workers::GetConstructorObject(aCx, global)) {
return NULL;
}
if (!JS_DefineProfilingFunctions(aCx, global)) {
return NULL;
}
return global;
}
bool
ClassIsWorkerGlobalScope(JSClass* aClass)
{
return WorkerGlobalScope::Class() == aClass ||
DedicatedWorkerGlobalScope::Class() == aClass;
}
END_WORKERS_NAMESPACE