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//
// GTMNSImage+SearchCache.m
//
// Finds NSImages using a variety of techniques
//
// Copyright 2009 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMNSImage+SearchCache.h"
#import "GTMDefines.h"
@implementation NSImage (GTMNSImageSearchCache)
+ (NSImage *)gtm_imageWithPath:(NSString *)path {
return [[[NSImage alloc] initWithContentsOfFile:path] autorelease];
}
+ (NSImage *)gtm_imageNamed:(NSString *)name {
return [self gtm_imageNamed:name forBundle:nil];
}
+ (NSImage *)gtm_imageNamed:(NSString *)name forBundle:(NSBundle *)bundle {
NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
NSImage *image = nil;
// Check our specified bundle first
if (!image) {
NSString *path = [bundle pathForImageResource:name];
if (path) image = [self gtm_imageWithPath:path];
}
// Check the main bundle and the existing NSImage namespace
if (!image) {
image = [NSImage imageNamed:name];
}
// Search for an image with that path
if (!image && ([name isAbsolutePath] || [name hasPrefix:@"~"])) {
NSString *path = [name stringByStandardizingPath];
if ([[NSFileManager defaultManager]
fileExistsAtPath:path]) {
image = [self gtm_imageWithPath:path];
if (!image) {
image = [workspace iconForFile:path];
}
}
}
// Search for a matching bundle id
if (!image) {
NSString *path = [workspace absolutePathForAppBundleWithIdentifier:name];
if (path) image = [workspace iconForFile:path]; ;
}
// Search for a file .extension or 'TYPE'
// TODO(alcor): This ALWAYS returns an image for items with ' or . as prefix
// We might not want this
if ([name hasPrefix:@"'"] || [name hasPrefix:@"."]) {
image = [workspace iconForFileType:name];
}
// Search for a UTI
if ([name rangeOfString:@"."].location != NSNotFound) {
NSDictionary *dict
= GTMCFAutorelease(UTTypeCopyDeclaration((CFStringRef)name));
NSURL *url
= GTMCFAutorelease(UTTypeCopyDeclaringBundleURL((CFStringRef)name));
NSString *iconName = [dict objectForKey:(NSString *)kUTTypeIconFileKey];
if (url && name) {
NSString *path
= [[NSBundle bundleWithPath:[url path]] pathForImageResource:iconName];
if (path)
image = [[[NSImage alloc] initWithContentsOfFile:path] autorelease];
}
}
return image;
}
@end
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