The Tor Browser: dom/workers/ChromeWorkerScope.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     4  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "ChromeWorkerScope.h"

     8 #include "jsapi.h"

    10 #include "nsXPCOM.h"

    11 #include "nsNativeCharsetUtils.h"

    12 #include "nsString.h"

    14 #include "WorkerPrivate.h"

    16 using namespace mozilla::dom;

    17 USING_WORKERS_NAMESPACE

    19 namespace {

    21 #ifdef BUILD_CTYPES

    23 char*

    24 UnicodeToNative(JSContext* aCx, const jschar* aSource, size_t aSourceLen)

    25 {

    26   nsDependentString unicode(aSource, aSourceLen);

    28   nsAutoCString native;

    29   if (NS_FAILED(NS_CopyUnicodeToNative(unicode, native))) {

    30     JS_ReportError(aCx, "Could not convert string to native charset!");

    31     return nullptr;

    32   }

    34   char* result = static_cast<char*>(JS_malloc(aCx, native.Length() + 1));

    35   if (!result) {

    36     return nullptr;

    37   }

    39   memcpy(result, native.get(), native.Length());

    40   result[native.Length()] = 0;

    41   return result;

    42 }

    44 #endif // BUILD_CTYPES

    46 } // anonymous namespace

    48 BEGIN_WORKERS_NAMESPACE

    50 bool

    51 DefineChromeWorkerFunctions(JSContext* aCx, JS::Handle<JSObject*> aGlobal)

    52 {

    53   // Currently ctypes is the only special property given to ChromeWorkers.

    54 #ifdef BUILD_CTYPES

    55   {

    56     JS::Rooted<JS::Value> ctypes(aCx);

    57     if (!JS_InitCTypesClass(aCx, aGlobal) ||

    58         !JS_GetProperty(aCx, aGlobal, "ctypes", &ctypes)) {

    59       return false;

    60     }

    62     static JSCTypesCallbacks callbacks = {

    63       UnicodeToNative

    64     };

    66     JS_SetCTypesCallbacks(JSVAL_TO_OBJECT(ctypes), &callbacks);

    67   }

    68 #endif // BUILD_CTYPES

    70   return true;

    71 }

    73 END_WORKERS_NAMESPACE

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