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Telegram/Telegraph/TGStickerImageDataSource.m
2015-10-01 19:19:52 +03:00

389 lines
14 KiB
Objective-C

#import "TGStickerImageDataSource.h"
#import "TGStringUtils.h"
#import "TGWorkerPool.h"
#import "TGWorkerTask.h"
#import "TGMediaPreviewTask.h"
#import "TGMemoryImageCache.h"
#import "TGImageUtils.h"
#import "TGStringUtils.h"
#import "TGRemoteImageView.h"
#import "TGImageBlur.h"
#import "UIImage+TG.h"
#import "NSObject+TGLock.h"
#import "TGMediaStoreContext.h"
#import "UIImage+WebP.h"
#import "TGDocumentMediaAttachment.h"
#import "TGAppDelegate.h"
static TGWorkerPool *workerPool()
{
static TGWorkerPool *instance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^
{
instance = [[TGWorkerPool alloc] init];
});
return instance;
}
static ASQueue *taskManagementQueue()
{
static ASQueue *queue = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^
{
queue = [[ASQueue alloc] initWithName:"org.telegram.stickerImageTaskManagementQueue"];
});
return queue;
}
@implementation TGStickerImageDataSource
+ (void)load
{
@autoreleasepool
{
[TGImageDataSource registerDataSource:[[self alloc] init]];
}
}
+ (NSString *)uriPrefix
{
return @"sticker://?";
}
- (bool)canHandleUri:(NSString *)uri
{
return [uri hasPrefix:@"sticker://"];
}
- (bool)canHandleAttributeUri:(NSString *)uri
{
return [uri hasPrefix:@"sticker://"];
}
- (id)loadDataAsyncWithUri:(NSString *)uri progress:(void (^)(float))progress partialCompletion:(void (^)(TGDataResource *resource))__unused partialCompletion completion:(void (^)(TGDataResource *))completion
{
TGMediaPreviewTask *previewTask = [[TGMediaPreviewTask alloc] init];
[taskManagementQueue() dispatchOnQueue:^
{
TGWorkerTask *workerTask = [[TGWorkerTask alloc] initWithBlock:^(bool (^isCancelled)())
{
TGDataResource *result = [TGStickerImageDataSource _performLoad:uri isCancelled:isCancelled];
if (result != nil && progress != nil)
progress(1.0f);
if (isCancelled != nil && isCancelled())
return;
if (completion != nil)
completion(result != nil ? result : [TGStickerImageDataSource resultForUnavailableImage]);
}];
if ([TGStickerImageDataSource _isDataLocallyAvailableForUri:uri])
{
[previewTask executeWithWorkerTask:workerTask workerPool:workerPool()];
}
else
{
NSDictionary *args = [TGStringUtils argumentDictionaryInUrlString:[uri substringFromIndex:[TGStickerImageDataSource uriPrefix].length]];
if ((![args[@"documentId"] respondsToSelector:@selector(longLongValue)] && ![args[@"localDocumentId"] respondsToSelector:@selector(longLongValue)]) || (![args[@"fileName"] respondsToSelector:@selector(characterAtIndex:)]) || (![args[@"datacenterId"] respondsToSelector:@selector(intValue)]))
{
if (completion != nil)
completion([TGStickerImageDataSource resultForUnavailableImage]);
}
else
{
static NSString *filesDirectory = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^
{
filesDirectory = [[TGAppDelegate documentsPath] stringByAppendingPathComponent:@"files"];
});
NSString *fileDirectoryName = nil;
if (args[@"documentId"] != nil)
{
fileDirectoryName = [[NSString alloc] initWithFormat:@"%" PRIx64 "", (int64_t)[args[@"documentId"] longLongValue]];
}
else if (args[@"localDocumentId"] != nil)
{
fileDirectoryName = [[NSString alloc] initWithFormat:@"local%" PRIx64 "", (int64_t)[args[@"localDocumentId"] longLongValue]];
}
NSString *fileDirectory = [filesDirectory stringByAppendingPathComponent:fileDirectoryName];
[[NSFileManager defaultManager] createDirectoryAtPath:fileDirectory withIntermediateDirectories:true attributes:nil error:nil];
NSString *filePath = [fileDirectory stringByAppendingPathComponent:args[@"fileName"]];
NSString *thumbnailPath = [fileDirectory stringByAppendingPathComponent:@"thumbnail"];
if ([[NSFileManager defaultManager] fileExistsAtPath:thumbnailPath])
{
TGDataResource *partialResult = [TGStickerImageDataSource _performLoad:uri isCancelled:nil];
if (partialResult != nil)
{
if (partialCompletion)
partialCompletion(partialResult);
}
}
NSString *thumbnailHighPath = [fileDirectory stringByAppendingPathComponent:@"thumbnail-high"];
if ([[NSFileManager defaultManager] fileExistsAtPath:thumbnailHighPath])
{
TGDataResource *partialResult = [TGStickerImageDataSource _performLoad:uri isCancelled:nil];
if (partialResult != nil)
{
if (partialCompletion)
partialCompletion(partialResult);
}
}
NSMutableArray *attributes = [[NSMutableArray alloc] init];
[attributes addObject:[[TGDocumentAttributeFilename alloc] initWithFilename:args[@"fileName"]]];
TGDocumentMediaAttachment *documentAttachment = [[TGDocumentMediaAttachment alloc] init];
documentAttachment.documentId = [args[@"documentId"] longLongValue];
documentAttachment.accessHash = [args[@"accessHash"] longLongValue];
documentAttachment.datacenterId = [args[@"datacenterId"] intValue];
documentAttachment.attributes = attributes;
documentAttachment.size = [args[@"size"] intValue];
[previewTask executeWithTargetFilePath:filePath document:documentAttachment progress:^(float value)
{
if (progress)
progress(value);
} completion:^(bool success)
{
if (success)
{
[ActionStageInstance() dispatchOnStageQueue:^
{
[previewTask executeWithWorkerTask:workerTask workerPool:workerPool()];
}];
}
else
{
if (completion != nil)
completion([TGStickerImageDataSource resultForUnavailableImage]);
}
} workerTask:nil];
}
}
}];
return previewTask;
}
+ (bool)_isDataLocallyAvailableForUri:(NSString *)uri
{
NSDictionary *args = [TGStringUtils argumentDictionaryInUrlString:[uri substringFromIndex:[TGStickerImageDataSource uriPrefix].length]];
if ((![args[@"documentId"] respondsToSelector:@selector(longLongValue)] && ![args[@"localDocumentId"] respondsToSelector:@selector(longLongValue)]) || (![args[@"fileName"] respondsToSelector:@selector(characterAtIndex:)]))
{
return false;
}
static NSString *filesDirectory = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^
{
filesDirectory = [[TGAppDelegate documentsPath] stringByAppendingPathComponent:@"files"];
});
NSString *fileDirectoryName = nil;
if ([args[@"documentId"] longLongValue] != 0)
fileDirectoryName = [[NSString alloc] initWithFormat:@"%" PRIx64 "", (int64_t)[args[@"documentId"] longLongValue]];
else
fileDirectoryName = [[NSString alloc] initWithFormat:@"local%" PRIx64 "", (int64_t)[args[@"localDocumentId"] longLongValue]];
NSString *fileDirectory = [filesDirectory stringByAppendingPathComponent:fileDirectoryName];
NSString *filePath = [fileDirectory stringByAppendingPathComponent:args[@"fileName"]];
if ([[NSFileManager defaultManager] fileExistsAtPath:filePath isDirectory:NULL])
return true;
return false;
}
- (void)cancelTaskById:(id)taskId
{
[taskManagementQueue() dispatchOnQueue:^
{
if ([taskId isKindOfClass:[TGMediaPreviewTask class]])
{
TGMediaPreviewTask *previewTask = taskId;
[previewTask cancel];
}
}];
}
+ (TGDataResource *)resultForUnavailableImage
{
return nil;
}
- (id)loadAttributeSyncForUri:(NSString *)__unused uri attribute:(NSString *)attribute
{
if ([attribute isEqualToString:@"placeholder"])
{
return nil;
}
return nil;
}
- (TGDataResource *)loadDataSyncWithUri:(NSString *)uri canWait:(bool)canWait acceptPartialData:(bool)__unused acceptPartialData asyncTaskId:(__autoreleasing id *)__unused asyncTaskId progress:(void (^)(float))__unused progress partialCompletion:(void (^)(TGDataResource *))__unused partialCompletion completion:(void (^)(TGDataResource *))__unused completion
{
if (uri == nil)
return nil;
UIImage *cachedImage = [[TGMediaStoreContext instance] mediaImage:uri attributes:nil];
if (cachedImage != nil)
return [[TGDataResource alloc] initWithImage:cachedImage decoded:true];
if (!canWait)
return nil;
return [TGStickerImageDataSource _performLoad:uri isCancelled:nil];
}
+ (TGDataResource *)_performLoad:(NSString *)uri isCancelled:(bool (^)())isCancelled
{
if (isCancelled && isCancelled())
{
TGLog(@"[TGPhotoMediaPreviewImageDataSource cancelled while loading %@]", uri);
return nil;
}
NSDictionary *args = [TGStringUtils argumentDictionaryInUrlString:[uri substringFromIndex:[TGStickerImageDataSource uriPrefix].length]];
if ((![args[@"documentId"] respondsToSelector:@selector(longLongValue)] && ![args[@"localDocumentId"] respondsToSelector:@selector(longLongValue)]) || (![args[@"fileName"] respondsToSelector:@selector(characterAtIndex:)]))
{
return false;
}
static NSString *filesDirectory = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^
{
filesDirectory = [[TGAppDelegate documentsPath] stringByAppendingPathComponent:@"files"];
});
NSString *fileDirectoryName = nil;
if ([args[@"documentId"] longLongValue] != 0)
fileDirectoryName = [[NSString alloc] initWithFormat:@"%" PRIx64 "", (int64_t)[args[@"documentId"] longLongValue]];
else
fileDirectoryName = [[NSString alloc] initWithFormat:@"local%" PRIx64 "", (int64_t)[args[@"localDocumentId"] longLongValue]];
NSString *fileDirectory = [filesDirectory stringByAppendingPathComponent:fileDirectoryName];
CGSize size = CGSizeMake([args[@"width"] intValue], [args[@"height"] intValue]);
UIImage *thumbnailSourceImage = nil;
bool lowQualityThumbnail = false;
NSString *filePath = [fileDirectory stringByAppendingPathComponent:args[@"fileName"]];
NSString *thumbnailPath = [fileDirectory stringByAppendingPathComponent:@"thumbnail"];
NSString *thumbnailHighPath = [fileDirectory stringByAppendingPathComponent:@"thumbnail-high"];
UIImage *image = nil;
{
NSString *cachedFilePath = [fileDirectory stringByAppendingPathComponent:@"cached.bin"];
if ([[NSFileManager defaultManager] fileExistsAtPath:cachedFilePath isDirectory:NULL])
{
image = [UIImage convertFromGZippedData:cachedFilePath size:size];
}
if (image != nil)
{
}
else
{
if ([[NSFileManager defaultManager] fileExistsAtPath:filePath isDirectory:NULL])
{
__autoreleasing NSData *compressedData = nil;
image = [UIImage convertFromWebP:filePath compressedData:&compressedData error:nil];
if (compressedData != nil)
[compressedData writeToFile:cachedFilePath atomically:true];
}
}
}
if (image == nil)
{
image = [[UIImage alloc] initWithContentsOfFile:filePath];
if (image != nil)
image = TGScaleImageToPixelSize(image, size);
}
if (image == nil)
{
lowQualityThumbnail = true;
NSString *cachedFilePath = [fileDirectory stringByAppendingPathComponent:@"thumbnail.cached.bin"];
if ([[NSFileManager defaultManager] fileExistsAtPath:cachedFilePath isDirectory:NULL])
{
image = [UIImage convertFromGZippedData:cachedFilePath size:size];
}
image = [[UIImage alloc] initWithContentsOfFile:thumbnailPath];
if (image != nil)
{
image = TGScaleImageToPixelSize(image, TGFitSize(image.size, size));
}
else
{
__autoreleasing NSData *compressedData = nil;
image = [UIImage convertFromWebP:thumbnailPath compressedData:&compressedData error:nil];
if (compressedData != nil)
[compressedData writeToFile:cachedFilePath atomically:true];
if (image == nil)
{
image = [UIImage convertFromWebP:thumbnailHighPath compressedData:&compressedData error:nil];
if (compressedData != nil)
[compressedData writeToFile:cachedFilePath atomically:true];
}
}
image = TGBlurredAlphaImage(image, CGSizeMake(size.width / 2.0f, size.height / 2.0f));
}
thumbnailSourceImage = image;
if (thumbnailSourceImage != nil)
{
UIImage *thumbnailImage = nil;
thumbnailImage = thumbnailSourceImage;
if (thumbnailImage != nil)
{
if (!lowQualityThumbnail)
[[TGMediaStoreContext instance] setMediaImageForKey:uri image:thumbnailImage attributes:nil];
return [[TGDataResource alloc] initWithImage:thumbnailImage decoded:true];
}
}
return nil;
}
@end