OLD | NEW |
| (Empty) |
1 // Copyright (c) 2009 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 #include "chrome/browser/cocoa/nsimage_cache.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "base/mac_util.h" | |
9 | |
10 // When C++ exceptions are disabled, the C++ library defines |try| and | |
11 // |catch| so as to allow exception-expecting C++ code to build properly when | |
12 // language support for exceptions is not present. These macros interfere | |
13 // with the use of |@try| and |@catch| in Objective-C files such as this one. | |
14 // Undefine these macros here, after everything has been #included, since | |
15 // there will be no C++ uses and only Objective-C uses from this point on. | |
16 #undef try | |
17 #undef catch | |
18 | |
19 namespace nsimage_cache { | |
20 | |
21 static NSMutableDictionary *image_cache = nil; | |
22 | |
23 NSImage *ImageNamed(NSString *name) { | |
24 DCHECK(name); | |
25 | |
26 // NOTE: to make this thread safe, we'd have to sync on the cache and | |
27 // also force all the bundle calls on the main thread. | |
28 | |
29 if (!image_cache) { | |
30 image_cache = [[NSMutableDictionary alloc] init]; | |
31 DCHECK(image_cache); | |
32 } | |
33 | |
34 NSImage *result = [image_cache objectForKey:name]; | |
35 if (!result) { | |
36 DLOG_IF(INFO, [[name pathExtension] length] == 0) | |
37 << "Suggest including the extension in the image name"; | |
38 | |
39 NSString *path = [mac_util::MainAppBundle() pathForImageResource:name]; | |
40 if (path) { | |
41 @try { | |
42 result = [[[NSImage alloc] initWithContentsOfFile:path] autorelease]; | |
43 if (result) | |
44 [image_cache setObject:result forKey:name]; | |
45 } | |
46 @catch (id err) { | |
47 DLOG(ERROR) << "Failed to load the image for name '" | |
48 << [name UTF8String] << "' from path '" << [path UTF8String] | |
49 << "', error: " << [err description]; | |
50 result = nil; | |
51 } | |
52 } | |
53 } | |
54 | |
55 // TODO: if we ever limit the cache size, this should retain & autorelease | |
56 // the image. | |
57 return result; | |
58 } | |
59 | |
60 void Clear(void) { | |
61 // NOTE: to make this thread safe, we'd have to sync on the cache. | |
62 [image_cache removeAllObjects]; | |
63 } | |
64 | |
65 } // namespace nsimage_cache | |
OLD | NEW |