void
MessageManagerGlobal::Dump(const nsAString& aStr)
{
  if (!DOMPrefs::DumpEnabled()) {
    return;
  }

#ifdef ANDROID
  __android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", NS_ConvertUTF16toUTF8(aStr).get());
#endif
#ifdef XP_WIN
  if (IsDebuggerPresent()) {
    OutputDebugStringW(PromiseFlatString(aStr).get());
  }
#endif
  fputs(NS_ConvertUTF16toUTF8(aStr).get(), stdout);
  fflush(stdout);
}

NS_IMETHODIMP nsCollationMacUC::AllocateRawSortKey(int32_t strength, const nsAString& stringIn,
                                                   uint8_t** key, uint32_t* outLen)
{
  NS_ENSURE_TRUE(mInit, NS_ERROR_NOT_INITIALIZED);
  NS_ENSURE_ARG_POINTER(key);
  NS_ENSURE_ARG_POINTER(outLen);

  nsresult res = EnsureCollator(strength);
  NS_ENSURE_SUCCESS(res, res);

  uint32_t stringInLen = stringIn.Length();
  uint32_t maxKeyLen = (1 + stringInLen) * kCollationValueSizeFactor * sizeof(UCCollationValue);
  if (maxKeyLen > mBufferLen) {
    uint32_t newBufferLen = mBufferLen;
    do {
      newBufferLen *= 2;
    } while (newBufferLen < maxKeyLen);
    void *newBuffer = PR_Malloc(newBufferLen);
    if (!newBuffer)
      return NS_ERROR_OUT_OF_MEMORY;

    PR_FREEIF(mBuffer);
    mBuffer = newBuffer;
    mBufferLen = newBufferLen;
  }

  ItemCount actual;
  OSStatus err = ::UCGetCollationKey(mCollator, (const UniChar*) PromiseFlatString(stringIn).get(),
                                     (UniCharCount) stringInLen,
                                     (ItemCount) (mBufferLen / sizeof(UCCollationValue)),
                                     &actual, (UCCollationValue *)mBuffer);
  NS_ENSURE_TRUE((err == noErr), NS_ERROR_FAILURE);

  uint32_t keyLength = actual * sizeof(UCCollationValue);
  void *newKey = PR_Malloc(keyLength);
  if (!newKey)
    return NS_ERROR_OUT_OF_MEMORY;

  memcpy(newKey, mBuffer, keyLength);
  *key = (uint8_t *)newKey;
  *outLen = keyLength;

  return NS_OK;
}

PRInt32
nsStaticCaseInsensitiveNameTable::Lookup(const nsAString& aName)
{
    NS_ASSERTION(mNameArray, "not inited");
    NS_ASSERTION(mNameTable.ops, "not inited");

    const nsAFlatString& str = PromiseFlatString(aName);

    NameTableKey key(&str);
    NameTableEntry *entry =
        static_cast<NameTableEntry*>
                   (PL_DHashTableOperate(&mNameTable, &key,
                                            PL_DHASH_LOOKUP));

    if (PL_DHASH_ENTRY_IS_FREE(entry))
        return nsStaticCaseInsensitiveNameTable::NOT_FOUND;

    return entry->mIndex;
}

static void
CheckTlbPath(JSONWriter& aJson, const nsAString& aTypelibPath)
{
  const nsString& flatPath = PromiseFlatString(aTypelibPath);
  DWORD bufCharLen = ExpandEnvironmentStrings(flatPath.get(), nullptr, 0);

  auto buf = MakeUnique<WCHAR[]>(bufCharLen);

  if (!ExpandEnvironmentStrings(flatPath.get(), buf.get(), bufCharLen)) {
    return;
  }

  // See whether this tlb can actually be loaded
  RefPtr<ITypeLib> typeLib;
  HRESULT hr = LoadTypeLibEx(buf.get(), REGKIND_NONE, getter_AddRefs(typeLib));

  nsPrintfCString loadResult("0x%08X", hr);
  aJson.StringProperty("LoadResult", loadResult.get());
}

static bool ParseInteger(nsDependentSubstring& aString,
                         int32_t& aResult)
{
  uint32_t index = FirstNonDigit(aString, 0);
  if (index == 0) {
    return false;
  }

  nsDependentSubstring n(aString, 0, index);
  nsresult ec;
  int32_t s = PromiseFlatString(n).ToInteger(&ec);
  if (NS_FAILED(ec)) {
    return false;
  }

  aString.Rebind(aString, index);
  aResult = s;
  return true;
}

NS_IMETHODIMP 
mozSpellChecker::SetCurrentDictionary(const nsAString &aDictionary)
{
  if(!mSpellCheckingEngine)
    return NS_ERROR_NULL_POINTER;
 
  nsresult res;
  res = mSpellCheckingEngine->SetDictionary(PromiseFlatString(aDictionary).get());
  if(NS_FAILED(res)){
    NS_WARNING("Dictionary load failed");
    return res;
  }
  nsXPIDLString language;
  
  nsCOMPtr<mozISpellI18NManager> serv(do_GetService("@mozilla.org/spellchecker/i18nmanager;1", &res));
  if(serv && NS_SUCCEEDED(res)){
    res = serv->GetUtil(language.get(),getter_AddRefs(mConverter));
  }
  return res;
}

NS_IMETHODIMP
nsWindowsRegKey::HasChild(const nsAString& aName, bool* aResult)
{
  if (NS_WARN_IF(!mKey)) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  // Check for the existence of a child key by opening the key with minimal
  // rights.  Perhaps there is a more efficient way to do this?

  HKEY key;
  LONG rv = RegOpenKeyExW(mKey, PromiseFlatString(aName).get(), 0,
                          STANDARD_RIGHTS_READ, &key);

  if ((*aResult = (rv == ERROR_SUCCESS && key))) {
    RegCloseKey(key);
  }

  return NS_OK;
}

NS_IMETHODIMP
nsWindowsRegKey::ReadStringValue(const nsAString &name, nsAString &result)
{
  NS_ENSURE_TRUE(mKey, NS_ERROR_NOT_INITIALIZED);

  DWORD type, size;

  const nsString &flatName = PromiseFlatString(name);

  LONG rv = RegQueryValueExW(mKey, flatName.get(), 0, &type, NULL, &size);
  if (rv != ERROR_SUCCESS)
    return NS_ERROR_FAILURE;

  // This must be a string type in order to fetch the value as a string.
  // We're being a bit forgiving here by allowing types other than REG_SZ.
  NS_ENSURE_STATE(type == REG_SZ ||
                  type == REG_EXPAND_SZ ||
                  type == REG_MULTI_SZ);

  // The buffer size must be a multiple of 2.
  NS_ENSURE_STATE(size % 2 == 0);

  if (size == 0) {
    result.Truncate();
    return NS_OK;
  }

  // |size| includes room for the terminating null character
  DWORD resultLen = size / 2 - 1;

  result.SetLength(resultLen);
  nsAString::iterator begin;
  result.BeginWriting(begin);
  if (begin.size_forward() != resultLen)
    return NS_ERROR_OUT_OF_MEMORY;

  rv = RegQueryValueExW(mKey, flatName.get(), 0, NULL, (LPBYTE) begin.get(),
                        &size);

  return (rv == ERROR_SUCCESS) ? NS_OK : NS_ERROR_FAILURE;
}

//-------------------------------------------------------------------------
char * nsFilePicker::ConvertToFileSystemCharset(const nsAString& inString)
{
  char *outString = nsnull;
  nsresult rv = NS_OK;

  // get file system charset and create a unicode encoder
  if (nsnull == mUnicodeEncoder) {
    nsCAutoString fileSystemCharset;
    GetFileSystemCharset(fileSystemCharset);

    nsCOMPtr<nsICharsetConverterManager> ccm = 
             do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv); 
    if (NS_SUCCEEDED(rv)) {
      rv = ccm->GetUnicodeEncoderRaw(fileSystemCharset.get(), &mUnicodeEncoder);
    }
  }

  // converts from unicode to the file system charset
  if (NS_SUCCEEDED(rv)) {
    PRInt32 inLength = inString.Length();

    const nsAFlatString& flatInString = PromiseFlatString(inString);

    PRInt32 outLength;
    rv = mUnicodeEncoder->GetMaxLength(flatInString.get(), inLength,
                                       &outLength);
    if (NS_SUCCEEDED(rv)) {
      outString = static_cast<char*>(nsMemory::Alloc( outLength+1 ));
      if (nsnull == outString) {
        return nsnull;
      }
      rv = mUnicodeEncoder->Convert(flatInString.get(), &inLength, outString,
                                    &outLength);
      if (NS_SUCCEEDED(rv)) {
        outString[outLength] = '\0';
      }
    }
  }
  
  return NS_SUCCEEDED(rv) ? outString : nsnull;
}

NS_IMETHODIMP 
mozSpellChecker::SetCurrentDictionary(const nsAString &aDictionary)
{
  // Calls to mozISpellCheckingEngine::SetDictionary might destroy us
  nsRefPtr<mozSpellChecker> kungFuDeathGrip = this;

  mSpellCheckingEngine = nullptr;

  if (aDictionary.IsEmpty()) {
    return NS_OK;
  }

  nsresult rv;
  nsCOMArray<mozISpellCheckingEngine> spellCheckingEngines;
  rv = GetEngineList(&spellCheckingEngines);
  NS_ENSURE_SUCCESS(rv, rv);

  for (int32_t i = 0; i < spellCheckingEngines.Count(); i++) {
    // We must set mSpellCheckingEngine before we call SetDictionary, since
    // SetDictionary calls back to this spell checker to check if the
    // dictionary was set
    mSpellCheckingEngine = spellCheckingEngines[i];

    rv = mSpellCheckingEngine->SetDictionary(PromiseFlatString(aDictionary).get());

    if (NS_SUCCEEDED(rv)) {
      nsCOMPtr<mozIPersonalDictionary> personalDictionary = do_GetService("@mozilla.org/spellchecker/personaldictionary;1");
      mSpellCheckingEngine->SetPersonalDictionary(personalDictionary.get());

      nsXPIDLString language;
      nsCOMPtr<mozISpellI18NManager> serv(do_GetService("@mozilla.org/spellchecker/i18nmanager;1", &rv));
      NS_ENSURE_SUCCESS(rv, rv);
      return serv->GetUtil(language.get(),getter_AddRefs(mConverter));
    }
  }

  mSpellCheckingEngine = nullptr;
  
  // We could not find any engine with the requested dictionary
  return NS_ERROR_NOT_AVAILABLE;
}

bool nsMediaFragmentURIParser::ParseNPTFraction(nsDependentSubstring& aString, double& aFraction)
{
  double fraction = 0.0;

  if (aString.Length() > 0 && aString[0] == '.') {
    PRUint32 index = FirstNonDigit(aString, 1);

    if (index > 1) {
      nsDependentSubstring number(aString, 0, index);
      PRInt32 ec;
      fraction = PromiseFlatString(number).ToDouble(&ec);
      if (NS_FAILED(ec)) {
        return PR_FALSE;
      }
    }
    aString.Rebind(aString, index);
  }

  aFraction = fraction;
  return PR_TRUE;
}

PRBool nsAttrValue::ParseDoubleValue(const nsAString& aString)
{
  ResetIfSet();

  PRInt32 ec;
  double val = PromiseFlatString(aString).ToDouble(&ec);
  if (NS_FAILED(ec)) {
    return PR_FALSE;
  }
  if (EnsureEmptyMiscContainer()) {
    MiscContainer* cont = GetMiscContainer();
    cont->mDoubleValue = val;
    cont->mType = eDoubleValue;
    nsAutoString serializedFloat;
    serializedFloat.AppendFloat(val);
    SetMiscAtomOrString(serializedFloat.Equals(aString) ? nsnull : &aString);
    return PR_TRUE;
  }

  return PR_FALSE;
}

bool
CSP_IsQuotelessKeyword(const nsAString& aKey)
{
  nsString lowerKey = PromiseFlatString(aKey);
  ToLowerCase(lowerKey);

  static_assert(CSP_LAST_KEYWORD_VALUE ==
                (sizeof(CSPStrKeywords) / sizeof(CSPStrKeywords[0])),
                "CSP_LAST_KEYWORD_VALUE does not match length of CSPStrKeywords");

  nsAutoString keyword;
  for (uint32_t i = 0; i < CSP_LAST_KEYWORD_VALUE; i++) {
    // skipping the leading ' and trimming the trailing '
    keyword.AssignASCII(CSPStrKeywords[i] + 1);
    keyword.Trim("'", false, true);
    if (lowerKey.Equals(keyword)) {
      return true;
    }
  }
  return false;
}

NS_IMETHODIMP
XPathEvaluator::CreateExpression(const nsAString & aExpression,
                                 nsIDOMXPathNSResolver *aResolver,
                                 nsIDOMXPathExpression **aResult)
{
    nsresult rv;
    if (!mRecycler) {
        nsRefPtr<txResultRecycler> recycler = new txResultRecycler;
        NS_ENSURE_TRUE(recycler, NS_ERROR_OUT_OF_MEMORY);
        
        rv = recycler->init();
        NS_ENSURE_SUCCESS(rv, rv);
        
        mRecycler = recycler;
    }

    nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
    XPathEvaluatorParseContext pContext(aResolver, !(doc && doc->IsHTML()));

    nsAutoPtr<Expr> expression;
    rv = txExprParser::createExpr(PromiseFlatString(aExpression), &pContext,
                                  getter_Transfers(expression));
    if (NS_FAILED(rv)) {
        if (rv == NS_ERROR_DOM_NAMESPACE_ERR) {
            return NS_ERROR_DOM_NAMESPACE_ERR;
        }

        return NS_ERROR_DOM_INVALID_EXPRESSION_ERR;
    }

    nsCOMPtr<nsIDOMDocument> document = do_QueryReferent(mDocument);

    *aResult = new nsXPathExpression(expression, mRecycler, document);
    if (!*aResult) {
        return NS_ERROR_OUT_OF_MEMORY;
    }

    NS_ADDREF(*aResult);
    return NS_OK;
}

NS_IMETHODIMP
nsPersistentProperties::SetStringProperty(const nsACString& aKey,
                                          const nsAString& aNewValue,
                                          nsAString& aOldValue)
{
  const nsAFlatCString&  flatKey = PromiseFlatCString(aKey);
  PropertyTableEntry* entry = static_cast<PropertyTableEntry*>(
    PL_DHashTableAdd(&mTable, flatKey.get()));

  if (entry->mKey) {
    aOldValue = entry->mValue;
    NS_WARNING(nsPrintfCString("the property %s already exists\n",
                               flatKey.get()).get());
  } else {
    aOldValue.Truncate();
  }

  entry->mKey = ArenaStrdup(flatKey, &mArena);
  entry->mValue = ArenaStrdup(PromiseFlatString(aNewValue), &mArena);

  return NS_OK;
}

PRBool
nsAttrValue::ParseIntWithBounds(const nsAString& aString,
                                PRInt32 aMin, PRInt32 aMax)
{
  NS_PRECONDITION(aMin < aMax &&
                  aMin >= NS_ATTRVALUE_INTEGERTYPE_MINVALUE &&
                  aMax <= NS_ATTRVALUE_INTEGERTYPE_MAXVALUE, "bad boundaries");

  ResetIfSet();

  PRInt32 ec;
  PRInt32 val = PromiseFlatString(aString).ToInteger(&ec);
  if (NS_FAILED(ec)) {
    return PR_FALSE;
  }

  val = PR_MAX(val, aMin);
  val = PR_MIN(val, aMax);
  SetIntValueAndType(val, eInteger);

  return PR_TRUE;
}

bool nsMediaFragmentURIParser::ParseNPTHH(nsDependentSubstring& aString, uint32_t& aHour)
{
  if (aString.Length() == 0) {
    return false;
  }

  uint32_t index = FirstNonDigit(aString, 0);
  if (index == 0) {
    return false;
  }

  nsDependentSubstring n(aString, 0, index);
  nsresult ec;
  int32_t u = PromiseFlatString(n).ToInteger(&ec);
  if (NS_FAILED(ec)) {
    return false;
  }

  aString.Rebind(aString, index);
  aHour = u;
  return true;
}

NS_IMETHODIMP 
nsDOMWindowList::NamedItem(const nsAString& aName, nsIDOMWindow** aReturn)
{
  nsCOMPtr<nsIDocShellTreeItem> item;

  *aReturn = nullptr;

  EnsureFresh();

  if (mDocShellNode) {
    mDocShellNode->FindChildWithName(PromiseFlatString(aName).get(),
                                     false, false, nullptr,
                                     nullptr, getter_AddRefs(item));

    nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(item));
    if (globalObject) {
      CallQueryInterface(globalObject.get(), aReturn);
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsNSSDialogs::ShowCertError(nsIInterfaceRequestor *ctx, 
                            nsISSLStatus *status, 
                            nsIX509Cert *cert, 
                            const nsAString & textErrorMessage, 
                            const nsAString & htmlErrorMessage, 
                            const nsACString & hostName, 
                            PRUint32 portNumber)
{
  nsCOMPtr<nsIPKIParamBlock> block =
           do_CreateInstance(NS_PKIPARAMBLOCK_CONTRACTID);
  if (!block)
    return NS_ERROR_OUT_OF_MEMORY;

  nsCOMPtr<nsIDialogParamBlock> dialogBlock = do_QueryInterface(block);

  nsresult rv;
  rv = dialogBlock->SetInt(1, portNumber);
  if (NS_FAILED(rv))
    return rv; 

  rv = dialogBlock->SetString(1, NS_ConvertUTF8toUTF16(hostName).get());
  if (NS_FAILED(rv))
    return rv;
  
  rv = dialogBlock->SetString(2, PromiseFlatString(textErrorMessage).get());
  if (NS_FAILED(rv))
    return rv;
  
  rv = block->SetISupportAtIndex(1, cert);
  if (NS_FAILED(rv))
    return rv;

  rv = nsNSSDialogHelper::openDialog(nsnull, 
                                     "chrome://pippki/content/certerror.xul",
                                     block);
  return rv;
}

NS_IMETHODIMP
compzillaWindow::HandleEvent (nsIDOMEvent* aDOMEvent)
{
    nsAutoString type;
    aDOMEvent->GetType (type);

    if (type.EqualsLiteral ("mousemove")) {
        OnMouseMove (aDOMEvent);
    } else if (type.EqualsLiteral ("DOMMouseScroll")) {
        OnDOMMouseScroll (aDOMEvent);
    } else if (type.EqualsLiteral ("focus")) {
        FocusIn (aDOMEvent);
    } else if (type.EqualsLiteral ("blur")) {
        FocusOut (aDOMEvent);
    } else {
        nsCOMPtr<nsIDOMEventTarget> target;
        aDOMEvent->GetTarget (getter_AddRefs (target));

        SPEW_EVENT ("HandleEvent: Unhandled type=%s, target=%p!!!\n", 
                    PromiseFlatString (type).get(), target.get ());
    }
    return NS_OK;
}