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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #import "chrome/browser/ui/cocoa/ui_localizer.h"
      6 
      7 #import <Foundation/Foundation.h>
      8 
      9 #include <stdlib.h>
     10 
     11 #include "base/logging.h"
     12 #include "base/strings/sys_string_conversions.h"
     13 #include "grit/chromium_strings.h"
     14 #include "grit/generated_resources.h"
     15 #include "grit/ui_strings.h"
     16 #include "ui/base/l10n/l10n_util.h"
     17 #include "ui/base/l10n/l10n_util_mac.h"
     18 
     19 struct UILocalizerResourceMap {
     20   const char* const name;
     21   unsigned int label_id;
     22   unsigned int label_arg_id;
     23 };
     24 
     25 
     26 namespace {
     27 
     28 // Utility function for bsearch on a ResourceMap table
     29 int ResourceMapCompare(const void* utf8Void,
     30                        const void* resourceMapVoid) {
     31   const char* utf8_key = reinterpret_cast<const char*>(utf8Void);
     32   const UILocalizerResourceMap* res_map =
     33       reinterpret_cast<const UILocalizerResourceMap*> (resourceMapVoid);
     34   return strcmp(utf8_key, res_map->name);
     35 }
     36 
     37 }  // namespace
     38 
     39 @interface GTMUILocalizer (PrivateAdditions)
     40 - (void)localizedObjects;
     41 @end
     42 
     43 @implementation GTMUILocalizer (PrivateAdditions)
     44 - (void)localizedObjects {
     45   // The ivars are private, so this method lets us trigger the localization
     46   // from -[ChromeUILocalizer awakeFromNib].
     47   [self localizeObject:owner_ recursively:YES];
     48   [self localizeObject:otherObjectToLocalize_ recursively:YES];
     49   [self localizeObject:yetAnotherObjectToLocalize_ recursively:YES];
     50 }
     51  @end
     52 
     53 @implementation ChromeUILocalizer
     54 
     55 - (void)awakeFromNib {
     56   // The GTM base is bundle based, since don't need the bundle, use this
     57   // override to bypass the bundle lookup and directly do the localization
     58   // calls.
     59   [self localizedObjects];
     60 }
     61 
     62 - (NSString *)localizedStringForString:(NSString *)string {
     63 
     64   // Include the table here so it is a local static.  This header provides
     65   // kUIResources and kUIResourcesSize.
     66 #include "ui_localizer_table.h"
     67 
     68   // Look up the string for the resource id to fetch.
     69   const char* utf8_key = [string UTF8String];
     70   if (utf8_key) {
     71     const void* valVoid = bsearch(utf8_key,
     72                                   kUIResources,
     73                                   kUIResourcesSize,
     74                                   sizeof(UILocalizerResourceMap),
     75                                   ResourceMapCompare);
     76     const UILocalizerResourceMap* val =
     77         reinterpret_cast<const UILocalizerResourceMap*>(valVoid);
     78     if (val) {
     79       // Do we need to build the string, or just fetch it?
     80       if (val->label_arg_id != 0) {
     81         const base::string16 label_arg(
     82             l10n_util::GetStringUTF16(val->label_arg_id));
     83         return l10n_util::GetNSStringFWithFixup(val->label_id, label_arg);
     84       }
     85 
     86       return l10n_util::GetNSStringWithFixup(val->label_id);
     87     }
     88 
     89     // Sanity check, there shouldn't be any strings with this id that aren't
     90     // in our map.
     91     DLOG_IF(WARNING, [string hasPrefix:@"^ID"]) << "Key '" << utf8_key
     92         << "' wasn't in the resource map?";
     93   }
     94 
     95   // If we didn't find anything, this string doesn't need localizing.
     96   return nil;
     97 }
     98 
     99 @end
    100