source: trunk/macosx/QuickLookPlugin/GeneratePreviewForURL.m @ 13458

Last change on this file since 13458 was 13458, checked in by livings124, 10 years ago

use localized strings properly in the quick look plugin
File size: 8.9 KB
Line 
1#import "transmission.h"
2#import "NSStringAdditions.h"
3
4OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options);
5void CancelPreviewGeneration(void *thisInterface, QLPreviewRequestRef preview);
6
7NSString * generateIconData(NSString * fileExtension, NSUInteger width, NSMutableDictionary * allImgProps)
8{
9    NSString * rawFilename = ![fileExtension isEqualToString: @""] ? fileExtension : @"blank_file_name_transmission";
10    NSString * iconFileName = [NSString stringWithFormat: @"%ldx%@.tiff", width, rawFilename]; //we need to do this once per file extension, per size
11   
12    if (![allImgProps objectForKey: iconFileName])
13    {
14        NSImage * icon = [[NSWorkspace sharedWorkspace] iconForFileType: fileExtension];
15       
16        const NSRect iconFrame = NSMakeRect(0.0, 0.0, width, width);
17        NSImage * renderedIcon = [[NSImage alloc] initWithSize: iconFrame.size];
18        [renderedIcon lockFocus];
19        [icon drawInRect: iconFrame fromRect: NSZeroRect operation: NSCompositeCopy fraction: 1.0];
20        [renderedIcon unlockFocus];
21       
22        NSData * iconData = [renderedIcon TIFFRepresentation];
23        [renderedIcon release];
24       
25        NSDictionary * imgProps = @{
26            (NSString *)kQLPreviewPropertyMIMETypeKey : @"image/png",
27            (NSString *)kQLPreviewPropertyAttachmentDataKey : iconData };
28        [allImgProps setObject: imgProps forKey: iconFileName];
29    }
30   
31    return [@"cid:" stringByAppendingString: iconFileName];
32}
33
34OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options)
35{
36    // Before proceeding make sure the user didn't cancel the request
37    if (QLPreviewRequestIsCancelled(preview))
38        return noErr;
39   
40    //try to parse the torrent file
41    tr_info inf;
42    tr_ctor * ctor = tr_ctorNew(NULL);
43    tr_ctorSetMetainfoFromFile(ctor, [[(NSURL *)url path] UTF8String]);
44    const int err = tr_torrentParse(ctor, &inf);
45    tr_ctorFree(ctor);
46    if (err)
47        return noErr;
48   
49    NSBundle * bundle = [NSBundle bundleWithIdentifier: @"org.m0k.transmission.QuickLookPlugin"];
50   
51    NSURL * styleURL = [bundle URLForResource: @"style" withExtension: @"css"];
52    NSString * styleContents = [NSString stringWithContentsOfURL: styleURL encoding: NSUTF8StringEncoding error: NULL];
53   
54    NSMutableString * htmlString = [NSMutableString string];
55    [htmlString appendFormat: @"<html><style type=\"text/css\">%@</style><body>", styleContents];
56   
57    NSMutableDictionary * allImgProps = [NSMutableDictionary dictionary];
58   
59    NSString * name = [NSString stringWithUTF8String: inf.name];
60    NSString * fileTypeString = inf.isMultifile ? NSFileTypeForHFSTypeCode(kGenericFolderIcon) : [name pathExtension];
61   
62    const NSUInteger width = 32;
63    [htmlString appendFormat: @"<h2><img class=\"icon\" src=\"%@\" width=\"%ld\" height=\"%ld\" />%@</h2>", generateIconData(fileTypeString, width, allImgProps), width, width, name];
64   
65    NSString * fileSizeString = [NSString stringForFileSize: inf.totalSize];
66    if (inf.isMultifile)
67    {
68        NSString * fileCountString;
69        if (inf.fileCount == 1)
70            fileCountString = NSLocalizedStringFromTableInBundle(@"1 file", nil, bundle, "quicklook file count");
71        else
72            fileCountString= [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"%@ files", nil, bundle, "quicklook file count"), [NSString formattedUInteger: inf.fileCount]];
73        fileSizeString = [NSString stringWithFormat: @"%@, %@", fileCountString, fileSizeString];
74    }
75    [htmlString appendFormat: @"<p>%@</p>", fileSizeString];
76   
77    NSString * dateCreatedString = inf.dateCreated > 0 ? [NSDateFormatter localizedStringFromDate: [NSDate dateWithTimeIntervalSince1970: inf.dateCreated] dateStyle: NSDateFormatterLongStyle timeStyle: NSDateFormatterShortStyle] : nil;
78    NSString * creatorString = inf.creator ? [NSString stringWithUTF8String: inf.creator] : nil;
79    if ([creatorString isEqualToString: @""]) creatorString = nil;
80    NSString * creationString = nil;
81    if (dateCreatedString && creatorString)
82        creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created on %@ with %@", nil, bundle, "quicklook creation info"), dateCreatedString, creatorString];
83    else if (dateCreatedString)
84        creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created on %@", nil, bundle, "quicklook creation info"), dateCreatedString];
85    else if (creatorString)
86        creationString = [NSString stringWithFormat: NSLocalizedStringFromTableInBundle(@"Created with %@", nil, bundle, "quicklook creation info"), creatorString];
87    if (creationString)
88        [htmlString appendFormat: @"<p>%@</p>", creationString];
89   
90    if (inf.comment)
91    {
92        NSString * comment = [NSString stringWithUTF8String: inf.comment];
93        if (![comment isEqualToString: @""])
94            [htmlString appendFormat: @"<p>%@</p>", comment];
95    }
96   
97    NSMutableArray * lists = [NSMutableArray array];
98   
99    if (inf.webseedCount > 0)
100    {
101        NSMutableString * listSection = [NSMutableString string];
102        [listSection appendString: @"<table>"];
103       
104        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]];
105        [listSection appendFormat: @"<tr><th>%@</th></tr>", headerTitleString];
106       
107        for (int i = 0; i < inf.webseedCount; ++i)
108            [listSection appendFormat: @"<tr><td>%s<td></tr>", inf.webseeds[i]];
109       
110        [listSection appendString:@"</table>"];
111       
112        [lists addObject: listSection];
113    }
114   
115    if (inf.trackerCount > 0)
116    {
117        NSMutableString * listSection = [NSMutableString string];
118        [listSection appendString: @"<table>"];
119       
120        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]];
121        [listSection appendFormat: @"<tr><th>%@</th></tr>", headerTitleString];
122       
123#warning handle tiers?
124        for (int i = 0; i < inf.trackerCount; ++i)
125            [listSection appendFormat: @"<tr><td>%s<td></tr>", inf.trackers[i].announce];
126       
127        [listSection appendString:@"</table>"];
128       
129        [lists addObject: listSection];
130    }
131   
132    if (inf.isMultifile)
133    {
134        NSMutableString * listSection = [NSMutableString string];
135        [listSection appendString: @"<table>"];
136       
137        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]];
138        [listSection appendFormat: @"<tr><th>%@</th></tr>", fileTitleString];
139       
140#warning display size?
141#warning display folders?
142        for (int i = 0; i < inf.fileCount; ++i)
143        {
144            NSString * fullFilePath = [NSString stringWithUTF8String: inf.files[i].name];
145            NSCAssert([fullFilePath hasPrefix: [name stringByAppendingString: @"/"]], @"Expected file path %@ to begin with %@/", fullFilePath, name);
146           
147            NSString * shortenedFilePath = [fullFilePath substringFromIndex: [name length]+1];
148           
149            const NSUInteger width = 16;
150            [listSection appendFormat: @"<tr><td><img class=\"icon\" src=\"%@\" width=\"%ld\" height=\"%ld\" />%@<td></tr>", generateIconData([shortenedFilePath pathExtension], width, allImgProps), width, width, shortenedFilePath];
151        }
152       
153        [listSection appendString:@"</table>"];
154       
155        [lists addObject: listSection];
156    }
157   
158    if ([lists count] > 0)
159        [htmlString appendFormat: @"<hr/><br>%@", [lists componentsJoinedByString: @"<br>"]];
160   
161    [htmlString appendString: @"</body></html>"];
162   
163    tr_metainfoFree(&inf);
164   
165    NSDictionary * props = @{ (NSString *)kQLPreviewPropertyTextEncodingNameKey : @"UTF-8",
166                                (NSString *)kQLPreviewPropertyMIMETypeKey : @"text/html",
167                                (NSString *)kQLPreviewPropertyAttachmentsKey : allImgProps };
168   
169    QLPreviewRequestSetDataRepresentation(preview, (CFDataRef)[htmlString dataUsingEncoding: NSUTF8StringEncoding], kUTTypeHTML, (CFDictionaryRef)props);
170   
171    return noErr;
172}
173
174void CancelPreviewGeneration(void *thisInterface, QLPreviewRequestRef preview)
175{
176    // Implement only if supported
177}
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