intl/locale/mac/nsCollationMacUC.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   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
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsCollationMacUC_h_
   7 #define nsCollationMacUC_h_
   8
   9 #include "nsICollation.h"
  10 #include "nsCollation.h"
  11 #include "mozilla/Attributes.h"
  12 #include <Carbon/Carbon.h>
  13
  14 // Maximum number of characters for a buffer to remember
  15 // the generated collation key.
  16 const uint32_t kCacheSize = 128;
  17 // According to the documentation, the length of the key should typically be
  18 // at least 5 * textLength, but 6* would be safer.
  19 const uint32_t kCollationValueSizeFactor = 6;
  20
  21 class nsCollationMacUC MOZ_FINAL : public nsICollation {
  22
  23 public:
  24   nsCollationMacUC();
  25
  26   // nsISupports interface
  27   NS_DECL_ISUPPORTS
  28
  29   // nsICollation interface
  30   NS_DECL_NSICOLLATION
  31
  32 protected:
  33   ~nsCollationMacUC();
  34
  35   nsresult ConvertLocale(nsILocale* aNSLocale, LocaleRef* aMacLocale);
  36   nsresult StrengthToOptions(const int32_t aStrength,
  37                              UCCollateOptions* aOptions);
  38   nsresult EnsureCollator(const int32_t newStrength);
  39
  40 private:
  41   bool mInit;
  42   bool mHasCollator;
  43   LocaleRef mLocale;
  44   int32_t mLastStrength;
  45   CollatorRef mCollator;
  46   void *mBuffer; // temporary buffer to generate collation keys
  47   uint32_t mBufferLen; // byte length of buffer
  48 };
  49
  50 #endif  /* nsCollationMacUC_h_ */