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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 "chrome/grit/chromium_strings.h"
     14 #include "chrome/grit/generated_resources.h"
     15 #include "grit/components_strings.h"
     16 #include "ui/base/l10n/l10n_util.h"
     17 #include "ui/base/l10n/l10n_util_mac.h"
     18 #include "ui/strings/grit/ui_strings.h"
     19 
     20 struct UILocalizerResourceMap {
     21   const char* const name;
     22   unsigned int label_id;
     23   unsigned int label_arg_id;
     24 };
     25 
     26 
     27 namespace {
     28 
     29 // Utility function for bsearch on a ResourceMap table
     30 int ResourceMapCompare(const void* utf8Void,
     31                        const void* resourceMapVoid) {
     32   const char* utf8_key = reinterpret_cast<const char*>(utf8Void);
     33   const UILocalizerResourceMap* res_map =
     34       reinterpret_cast<const UILocalizerResourceMap*> (resourceMapVoid);
     35   return strcmp(utf8_key, res_map->name);
     36 }
     37 
     38 }  // namespace
     39 
     40 @interface GTMUILocalizer (PrivateAdditions)
     41 - (void)localizedObjects;
     42 @end
     43 
     44 @implementation GTMUILocalizer (PrivateAdditions)
     45 - (void)localizedObjects {
     46   // The ivars are private, so this method lets us trigger the localization
     47   // from -[ChromeUILocalizer awakeFromNib].
     48   [self localizeObject:owner_ recursively:YES];
     49   [self localizeObject:otherObjectToLocalize_ recursively:YES];
     50   [self localizeObject:yetAnotherObjectToLocalize_ recursively:YES];
     51 }
     52  @end
     53 
     54 @implementation ChromeUILocalizer
     55 
     56 - (void)awakeFromNib {
     57   // The GTM base is bundle based, since don't need the bundle, use this
     58   // override to bypass the bundle lookup and directly do the localization
     59   // calls.
     60   [self localizedObjects];
     61 }
     62 
     63 - (NSString *)localizedStringForString:(NSString *)string {
     64 
     65   // Include the table here so it is a local static.  This header provides
     66   // kUIResources and kUIResourcesSize.
     67 #include "ui_localizer_table.h"
     68 
     69   // Look up the string for the resource id to fetch.
     70   const char* utf8_key = [string UTF8String];
     71   if (utf8_key) {
     72     const void* valVoid = bsearch(utf8_key,
     73                                   kUIResources,
     74                                   kUIResourcesSize,
     75                                   sizeof(UILocalizerResourceMap),
     76                                   ResourceMapCompare);
     77     const UILocalizerResourceMap* val =
     78         reinterpret_cast<const UILocalizerResourceMap*>(valVoid);
     79     if (val) {
     80       // Do we need to build the string, or just fetch it?
     81       if (val->label_arg_id != 0) {
     82         const base::string16 label_arg(
     83             l10n_util::GetStringUTF16(val->label_arg_id));
     84         return l10n_util::GetNSStringFWithFixup(val->label_id, label_arg);
     85       }
     86 
     87       return l10n_util::GetNSStringWithFixup(val->label_id);
     88     }
     89 
     90     // Sanity check, there shouldn't be any strings with this id that aren't
     91     // in our map.
     92     DLOG_IF(WARNING, [string hasPrefix:@"^ID"]) << "Key '" << utf8_key
     93         << "' wasn't in the resource map?";
     94   }
     95 
     96   // If we didn't find anything, this string doesn't need localizing.
     97   return nil;
     98 }
     99 
    100 @end
    101