Updating trunk VERSION from 2139.0 to 2140.0
[chromium-blink-merge.git] / ui / base / resource / resource_bundle_mac.mm
blob6ad6b1afbdcc1d11975020dcee3d1b09576c9c9f
1 // Copyright (c) 2012 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.
5 #include "ui/base/resource/resource_bundle.h"
7 #import <AppKit/AppKit.h>
9 #include "base/basictypes.h"
10 #include "base/file_util.h"
11 #include "base/files/file_path.h"
12 #include "base/mac/bundle_locations.h"
13 #include "base/mac/mac_util.h"
14 #include "base/mac/scoped_nsobject.h"
15 #include "base/memory/ref_counted_memory.h"
16 #include "base/strings/sys_string_conversions.h"
17 #include "base/synchronization/lock.h"
18 #include "ui/base/resource/resource_handle.h"
19 #include "ui/gfx/image/image.h"
21 namespace ui {
23 namespace {
25 base::FilePath GetResourcesPakFilePath(NSString* name, NSString* mac_locale) {
26   NSString *resource_path;
27   // Some of the helper processes need to be able to fetch resources
28   // (chrome_main.cc: SubprocessNeedsResourceBundle()). Fetch the same locale
29   // as the already-running browser instead of using what NSBundle might pick
30   // based on values at helper launch time.
31   if ([mac_locale length]) {
32     resource_path = [base::mac::FrameworkBundle() pathForResource:name
33                                                            ofType:@"pak"
34                                                       inDirectory:@""
35                                                   forLocalization:mac_locale];
36   } else {
37     resource_path = [base::mac::FrameworkBundle() pathForResource:name
38                                                            ofType:@"pak"];
39   }
41   if (!resource_path) {
42     // Return just the name of the pack file.
43     return base::FilePath(base::SysNSStringToUTF8(name) + ".pak");
44   }
46   return base::FilePath([resource_path fileSystemRepresentation]);
49 }  // namespace
51 void ResourceBundle::LoadCommonResources() {
52   AddDataPackFromPath(GetResourcesPakFilePath(@"chrome_100_percent",
53                         nil), SCALE_FACTOR_100P);
54   AddDataPackFromPath(GetResourcesPakFilePath(@"content_resources_100_percent",
55                         nil), SCALE_FACTOR_100P);
57   // On Mac we load 1x and 2x resources and we let the UI framework decide
58   // which one to use.
59   if (IsScaleFactorSupported(SCALE_FACTOR_200P)) {
60     AddDataPackFromPath(GetResourcesPakFilePath(@"chrome_200_percent", nil),
61                         SCALE_FACTOR_200P);
62     AddDataPackFromPath(
63         GetResourcesPakFilePath(@"content_resources_200_percent", nil),
64         SCALE_FACTOR_200P);
65   }
68 base::FilePath ResourceBundle::GetLocaleFilePath(const std::string& app_locale,
69                                                  bool test_file_exists) {
70   NSString* mac_locale = base::SysUTF8ToNSString(app_locale);
72   // Mac OS X uses "_" instead of "-", so swap to get a Mac-style value.
73   mac_locale = [mac_locale stringByReplacingOccurrencesOfString:@"-"
74                                                      withString:@"_"];
76   // On disk, the "en_US" resources are just "en" (http://crbug.com/25578).
77   if ([mac_locale isEqual:@"en_US"])
78     mac_locale = @"en";
80   base::FilePath locale_file_path =
81       GetResourcesPakFilePath(@"locale", mac_locale);
83   if (delegate_) {
84     locale_file_path =
85         delegate_->GetPathForLocalePack(locale_file_path, app_locale);
86   }
88   // Don't try to load empty values or values that are not absolute paths.
89   if (locale_file_path.empty() || !locale_file_path.IsAbsolute())
90     return base::FilePath();
92   if (test_file_exists && !base::PathExists(locale_file_path))
93     return base::FilePath();
95   return locale_file_path;
98 gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl) {
99   // Flipped images are not used on Mac.
100   DCHECK_EQ(rtl, RTL_DISABLED);
102   // Check to see if the image is already in the cache.
103   {
104     base::AutoLock lock(*images_and_fonts_lock_);
105     if (images_.count(resource_id)) {
106       if (!images_[resource_id].HasRepresentation(gfx::Image::kImageRepCocoa)) {
107         DLOG(WARNING) << "ResourceBundle::GetNativeImageNamed() is returning a"
108           << " cached gfx::Image that isn't backed by an NSImage. The image"
109           << " will be converted, rather than going through the NSImage loader."
110           << " resource_id = " << resource_id;
111       }
112       return images_[resource_id];
113     }
114   }
116   gfx::Image image;
117   if (delegate_)
118     image = delegate_->GetNativeImageNamed(resource_id, rtl);
120   if (image.IsEmpty()) {
121     base::scoped_nsobject<NSImage> ns_image;
122     for (size_t i = 0; i < data_packs_.size(); ++i) {
123       scoped_refptr<base::RefCountedStaticMemory> data(
124           data_packs_[i]->GetStaticMemory(resource_id));
125       if (!data.get())
126         continue;
128       base::scoped_nsobject<NSData> ns_data(
129           [[NSData alloc] initWithBytes:data->front() length:data->size()]);
130       if (!ns_image.get()) {
131         ns_image.reset([[NSImage alloc] initWithData:ns_data]);
132       } else {
133         NSImageRep* image_rep = [NSBitmapImageRep imageRepWithData:ns_data];
134         if (image_rep)
135           [ns_image addRepresentation:image_rep];
136       }
137     }
139     if (!ns_image.get()) {
140       LOG(WARNING) << "Unable to load image with id " << resource_id;
141       NOTREACHED();  // Want to assert in debug mode.
142       return GetEmptyImage();
143     }
145     image = gfx::Image(ns_image.release());
146   }
148   base::AutoLock lock(*images_and_fonts_lock_);
150   // Another thread raced the load and has already cached the image.
151   if (images_.count(resource_id))
152     return images_[resource_id];
154   images_[resource_id] = image;
155   return images_[resource_id];
158 }  // namespace ui