f33be68703
* [macOS] Adding QuickLook feature * [macOS] Adding QuickLook support for Conda and Homebrew. * [macOS] Support non-square app icons in thumbnails. * [macOS] adding icon for .FCScript files
73 lines
2.9 KiB
Objective-C
73 lines
2.9 KiB
Objective-C
#include <CoreFoundation/CoreFoundation.h>
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#include <CoreServices/CoreServices.h>
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#include <QuickLook/QuickLook.h>
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#include <Foundation/Foundation.h>
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#include <AppKit/AppKit.h>
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/* -----------------------------------------------------------------------------
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Generate a thumbnail for file
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This function's job is to create thumbnail for designated file as fast as possible
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----------------------------------------------------------------------------- */
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OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize)
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{
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OSStatus ret = coreFoundationUnknownErr;
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@autoreleasepool {
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// unzip -qq -o -j -d /tmp ~/test.FCStd thumbnails/Thumbnail.png
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// -qq : be really quiet
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// -o : overwrite without prompt
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// -j : don't create archive paths
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// -d : destination path (create this path)
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// extracts thumbnails/Thumbnail.png to /tmp/Thumbnail.png .
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// We add a UUID and use a system temp directory here.
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NSUUID *uuid = [NSUUID UUID];
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NSString *uuidPath = [uuid UUIDString];
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NSString *unzipDstPath = [NSString stringWithFormat:@"%@/%@/", NSTemporaryDirectory(), uuidPath];
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NSString *unzipDstFile = [NSString stringWithFormat:@"%@%@", unzipDstPath, @"Thumbnail.png"];
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NSURL *zipFile = (__bridge NSURL *)url;
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NSTask *task = [NSTask launchedTaskWithLaunchPath:@"/usr/bin/unzip"
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arguments:@[@"-qq", @"-o", @"-j", @"-d", unzipDstPath, [zipFile path], @"thumbnails/Thumbnail.png"]];
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[task waitUntilExit];
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// NSLog(@"%@", unzipDstPath);
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// NSLog(@"%@", unzipDstFile);
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if ( [[NSFileManager defaultManager] fileExistsAtPath:unzipDstFile] )
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{
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CGSize canvasSize = CGSizeMake(128, 128);
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CGContextRef cgContext = QLThumbnailRequestCreateContext(thumbnail, /*maxSize*/canvasSize, true, NULL);
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if(cgContext)
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{
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CGDataProviderRef pngDP = CGDataProviderCreateWithFilename([unzipDstFile fileSystemRepresentation]);
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CGImageRef image = CGImageCreateWithPNGDataProvider(pngDP, NULL, true, kCGRenderingIntentDefault);
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CGDataProviderRelease(pngDP);
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CGContextDrawImage(cgContext,CGRectMake(0, 0, 128, 128), image);
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QLThumbnailRequestFlushContext(thumbnail, cgContext);
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ret = noErr;
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CFRelease(cgContext);
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CFRelease(image);
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}
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}
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if ( [[NSFileManager defaultManager] isDeletableFileAtPath:unzipDstFile] )
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[[NSFileManager defaultManager] removeItemAtPath:unzipDstFile error:nil];
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if ( [[NSFileManager defaultManager] isDeletableFileAtPath:unzipDstPath] )
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[[NSFileManager defaultManager] removeItemAtPath:unzipDstPath error:nil];
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}
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return ret;
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}
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void CancelThumbnailGeneration(void* thisInterface, QLThumbnailRequestRef thumbnail)
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{
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// implement only if supported
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}
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