#import "transmission.h"
#import "NSStringAdditions.h"
OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options);
void CancelPreviewGeneration(void *thisInterface, QLPreviewRequestRef preview);
NSString * generateIconData(NSString * fileExtension, NSUInteger width, NSMutableDictionary * allImgProps)
{
NSString * rawFilename = ![fileExtension isEqualToString: @""] ? fileExtension : @"blank_file_name_transmission";
NSString * iconFileName = [NSString stringWithFormat: @"%ldx%@.tiff", width, rawFilename]; //we need to do this once per file extension, per size
if (![allImgProps objectForKey: iconFileName])
{
NSImage * icon = [[NSWorkspace sharedWorkspace] iconForFileType: fileExtension];
const NSRect iconFrame = NSMakeRect(0.0, 0.0, width, width);
NSImage * renderedIcon = [[NSImage alloc] initWithSize: iconFrame.size];
[renderedIcon lockFocus];
[icon drawInRect: iconFrame fromRect: NSZeroRect operation: NSCompositeCopy fraction: 1.0];
[renderedIcon unlockFocus];
NSData * iconData = [renderedIcon TIFFRepresentation];
[renderedIcon release];
NSDictionary * imgProps = @{
(NSString *)kQLPreviewPropertyMIMETypeKey : @"image/png",
(NSString *)kQLPreviewPropertyAttachmentDataKey : iconData };
[allImgProps setObject: imgProps forKey: iconFileName];
}
return [@"cid:" stringByAppendingString: iconFileName];
}
OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options)
{
// Before proceeding make sure the user didn't cancel the request
if (QLPreviewRequestIsCancelled(preview))
return noErr;
//we need this call to ensure NSApp is initialized (not done automatically for plugins)
[NSApplication sharedApplication];
//try to parse the torrent file
tr_info inf;
tr_ctor * ctor = tr_ctorNew(NULL);
tr_ctorSetMetainfoFromFile(ctor, [[(NSURL *)url path] UTF8String]);
const int err = tr_torrentParse(ctor, &inf);
tr_ctorFree(ctor);
if (err)
return noErr;
NSBundle * bundle = [NSBundle bundleWithIdentifier: @"org.m0k.transmission.QuickLookPlugin"];
NSURL * styleURL = [bundle URLForResource: @"style" withExtension: @"css"];
NSString * styleContents = [NSString stringWithContentsOfURL: styleURL encoding: NSUTF8StringEncoding error: NULL];
NSMutableString * htmlString = [NSMutableString string];
[htmlString appendFormat: @"", styleContents];
NSMutableDictionary * allImgProps = [NSMutableDictionary dictionary];
NSString * name = [NSString stringWithUTF8String: inf.name];
NSString * fileTypeString = inf.isFolder ? NSFileTypeForHFSTypeCode(kGenericFolderIcon) : [name pathExtension];
const NSUInteger width = 32;
[htmlString appendFormat: @"![](\"%@\")
%@
", generateIconData(fileTypeString, width, allImgProps), width, width, name];
NSString * fileSizeString = [NSString stringForFileSize: inf.totalSize];
if (inf.isFolder)
{
NSString * fileCountString;
if (inf.fileCount == 1)
fileCountString = NSLocalizedStringFromTableInBundle(@"1 file", nil, bundle, "quicklook file count");
else
fileCountString= [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"%@ files", nil, bundle, "quicklook file count"), [NSString formattedUInteger: inf.fileCount]];
fileSizeString = [NSString stringWithFormat: @"%@, %@", fileCountString, fileSizeString];
}
[htmlString appendFormat: @"%@
", fileSizeString];
NSString * dateCreatedString = inf.dateCreated > 0 ? [NSDateFormatter localizedStringFromDate: [NSDate dateWithTimeIntervalSince1970: inf.dateCreated] dateStyle: NSDateFormatterLongStyle timeStyle: NSDateFormatterShortStyle] : nil;
NSString * creatorString = inf.creator ? [NSString stringWithUTF8String: inf.creator] : nil;
if ([creatorString isEqualToString: @""]) creatorString = nil;
NSString * creationString = nil;
if (dateCreatedString && creatorString)
creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created on %@ with %@", nil, bundle, "quicklook creation info"), dateCreatedString, creatorString];
else if (dateCreatedString)
creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created on %@", nil, bundle, "quicklook creation info"), dateCreatedString];
else if (creatorString)
creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created with %@", nil, bundle, "quicklook creation info"), creatorString];
if (creationString)
[htmlString appendFormat: @"%@
", creationString];
if (inf.comment)
{
NSString * comment = [NSString stringWithUTF8String: inf.comment];
if (![comment isEqualToString: @""])
[htmlString appendFormat: @"%@
", comment];
}
NSMutableArray * lists = [NSMutableArray array];
if (inf.webseedCount > 0)
{
NSMutableString * listSection = [NSMutableString string];
[listSection appendString: @""];
NSString * headerTitleString = inf.webseedCount == 1 ? NSLocalizedStringFromTableInBundle(@"1 Web Seed", nil, bundle, "quicklook web seed header") : [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"%@ Web Seeds", nil, bundle, "quicklook web seed header"), [NSString formattedUInteger: inf.webseedCount]];
[listSection appendFormat: @"| %@ |
|---|
", headerTitleString];
for (int i = 0; i < inf.webseedCount; ++i)
[listSection appendFormat: @"| %s | |
", inf.webseeds[i]];
[listSection appendString:@"
"];
[lists addObject: listSection];
}
if (inf.trackerCount > 0)
{
NSMutableString * listSection = [NSMutableString string];
[listSection appendString: @""];
NSString * headerTitleString = inf.trackerCount == 1 ? NSLocalizedStringFromTableInBundle(@"1 Tracker", nil, bundle, "quicklook tracker header") : [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"%@ Trackers", nil, bundle, "quicklook tracker header"), [NSString formattedUInteger: inf.trackerCount]];
[listSection appendFormat: @"| %@ |
|---|
", headerTitleString];
#warning handle tiers?
for (int i = 0; i < inf.trackerCount; ++i)
[listSection appendFormat: @"| %s | |
", inf.trackers[i].announce];
[listSection appendString:@"
"];
[lists addObject: listSection];
}
if (inf.isFolder)
{
NSMutableString * listSection = [NSMutableString string];
[listSection appendString: @""];
NSString * fileTitleString = inf.fileCount == 1 ? NSLocalizedStringFromTableInBundle(@"1 File", nil, bundle, "quicklook file header") : [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"%@ Files", nil, bundle, "quicklook file header"), [NSString formattedUInteger: inf.fileCount]];
[listSection appendFormat: @"| %@ |
|---|
", fileTitleString];
#warning display size?
#warning display folders?
for (int i = 0; i < inf.fileCount; ++i)
{
NSString * fullFilePath = [NSString stringWithUTF8String: inf.files[i].name];
NSCAssert([fullFilePath hasPrefix: [name stringByAppendingString: @"/"]], @"Expected file path %@ to begin with %@/", fullFilePath, name);
NSString * shortenedFilePath = [fullFilePath substringFromIndex: [name length]+1];
const NSUInteger width = 16;
[listSection appendFormat: @"| %@ | |
", generateIconData([shortenedFilePath pathExtension], width, allImgProps), width, width, shortenedFilePath];
}
[listSection appendString:@"
"];
[lists addObject: listSection];
}
if ([lists count] > 0)
[htmlString appendFormat: @"
%@", [lists componentsJoinedByString: @"
"]];
[htmlString appendString: @""];
tr_metainfoFree(&inf);
NSDictionary * props = @{ (NSString *)kQLPreviewPropertyTextEncodingNameKey : @"UTF-8",
(NSString *)kQLPreviewPropertyMIMETypeKey : @"text/html",
(NSString *)kQLPreviewPropertyAttachmentsKey : allImgProps };
QLPreviewRequestSetDataRepresentation(preview, (CFDataRef)[htmlString dataUsingEncoding: NSUTF8StringEncoding], kUTTypeHTML, (CFDictionaryRef)props);
return noErr;
}
void CancelPreviewGeneration(void *thisInterface, QLPreviewRequestRef preview)
{
// Implement only if supported
}