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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 "ChromeWorkerScope.h"
#include "jsapi.h"
#include "js/PropertyAndElement.h" // JS_GetProperty
#include "js/experimental/CTypes.h" // JS::InitCTypesClass, JS::CTypesCallbacks, JS::SetCTypesCallbacks
#include "js/MemoryFunctions.h"
#include "nsNativeCharsetUtils.h"
#include "nsString.h"
namespace mozilla::dom {
namespace {
#ifdef BUILD_CTYPES
char* UnicodeToNative(JSContext* aCx, const char16_t* aSource,
size_t aSourceLen) {
nsDependentSubstring unicode(aSource, aSourceLen);
nsAutoCString native;
if (NS_FAILED(NS_CopyUnicodeToNative(unicode, native))) {
JS_ReportErrorASCII(aCx, "Could not convert string to native charset!");
return nullptr;
}
char* result = static_cast<char*>(JS_malloc(aCx, native.Length() + 1));
if (!result) {
return nullptr;
}
memcpy(result, native.get(), native.Length());
result[native.Length()] = 0;
return result;
}
#endif // BUILD_CTYPES
} // namespace
bool DefineChromeWorkerFunctions(JSContext* aCx,
JS::Handle<JSObject*> aGlobal) {
// Currently ctypes is the only special property given to ChromeWorkers.
#ifdef BUILD_CTYPES
{
JS::Rooted<JS::Value> ctypes(aCx);
if (!JS::InitCTypesClass(aCx, aGlobal) ||
!JS_GetProperty(aCx, aGlobal, "ctypes", &ctypes)) {
return false;
}
static const JS::CTypesCallbacks callbacks = {UnicodeToNative};
JS::SetCTypesCallbacks(ctypes.toObjectOrNull(), &callbacks);
}
#endif // BUILD_CTYPES
return true;
}
} // namespace mozilla::dom
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