element-ios/RiotShareExtension/Sources/ShareItemSender.m

890 lines
32 KiB
Objective-C

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
@import MobileCoreServices;
#import "ShareItemSender.h"
#import "GeneratedInterface-Swift.h"
static const CGFloat kLargeImageSizeMaxDimension = 2048.0;
static const CGSize kThumbnailSize = {800.0, 600.0};
/// A safe maximum file size for an image to send the original.
static const NSUInteger kImageMaxFileSize = 20 * 1024 * 1024;
typedef NS_ENUM(NSInteger, ImageCompressionMode)
{
ImageCompressionModeNone,
ImageCompressionModeSmall,
ImageCompressionModeMedium,
ImageCompressionModeLarge
};
@interface ShareItemSender ()
@property (nonatomic, weak, readonly) UIViewController *rootViewController;
@property (nonatomic, strong, readonly) ShareExtensionShareItemProvider *shareItemProvider;
@property (nonatomic, strong, readonly) NSMutableArray<NSData *> *pendingImages;
@property (nonatomic, strong, readonly) NSMutableDictionary<NSString *, NSNumber *> *imageUploadProgresses;
@property (nonatomic, assign) ImageCompressionMode imageCompressionMode;
@property (nonatomic, assign) CGFloat actualLargeSize;
@end
@implementation ShareItemSender
@synthesize delegate;
- (instancetype)initWithRootViewController:(UIViewController *)rootViewController
shareItemProvider:(ShareExtensionShareItemProvider *)shareItemProvider
{
if (self = [super init]) {
_rootViewController = rootViewController;
_shareItemProvider = shareItemProvider;
_pendingImages = [NSMutableArray array];
_imageUploadProgresses = [NSMutableDictionary dictionary];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaLoaderStateDidChange:) name:kMXMediaLoaderStateDidChangeNotification object:nil];
}
return self;
}
- (void)didStartSending
{
[self.delegate shareItemSenderDidStartSending:self];
}
- (void)presentCompressionPrompt:(UIAlertController *)compressionPrompt
{
[compressionPrompt popoverPresentationController].sourceView = self.rootViewController.view;
[compressionPrompt popoverPresentationController].sourceRect = self.rootViewController.view.frame;
[self.rootViewController.presentedViewController presentViewController:compressionPrompt animated:YES completion:nil];
}
- (BOOL)roomsContainEncryptedRoom:(NSArray<MXRoom *> *)rooms
{
BOOL foundEncryptedRoom = NO;
for (MXRoom *room in rooms)
{
if (room.summary.isEncrypted)
{
foundEncryptedRoom = YES;
break;
}
}
return foundEncryptedRoom;
}
- (void)resetPendingData
{
[self.pendingImages removeAllObjects];
[self.imageUploadProgresses removeAllObjects];
}
- (void)sendItemsToRooms:(NSArray<MXRoom *> *)rooms success:(void (^)(void))success failure:(void (^)(NSArray<NSError *> *))failure
{
[self resetPendingData];
__block NSMutableArray<NSError *> *errors;
dispatch_group_t dispatchGroup = dispatch_group_create();
void (^requestSuccess)(void) = ^() {
dispatch_group_leave(dispatchGroup);
};
void (^requestFailure)(NSError *) = ^(NSError *requestError) {
if (errors == nil)
{
errors = [NSMutableArray array];
}
if(requestError)
{
[errors addObject:requestError];
}
dispatch_group_leave(dispatchGroup);
};
MXWeakify(self);
for (id<ShareItemProtocol> item in self.shareItemProvider.items)
{
if (item.type == ShareItemTypeText || item.type == ShareItemTypeURL) {
dispatch_group_enter(dispatchGroup);
[self.shareItemProvider loadItem:item completion:^(id item, NSError *error) {
MXStrongifyAndReturnIfNil(self);
if (error)
{
requestFailure(error);
return;
}
NSString *text = nil;
if([item isKindOfClass:[NSString class]])
{
text = item;
}
else if([item isKindOfClass:[NSURL class]])
{
text = [(NSURL *)item absoluteString];
}
if(text.length == 0)
{
requestFailure(nil);
return;
}
[self sendText:text toRooms:rooms success:requestSuccess failure:requestFailure];
}];
}
if (item.type == ShareItemTypeFileURL) {
dispatch_group_enter(dispatchGroup);
[self.shareItemProvider loadItem:item completion:^(NSURL *url, NSError *error) {
MXStrongifyAndReturnIfNil(self);
if (error)
{
requestFailure(error);
return;
}
[self sendFileWithUrl:url toRooms:rooms success:requestSuccess failure:requestFailure];
}];
}
if (item.type == ShareItemTypeVideo || item.type == ShareItemTypeMovie)
{
dispatch_group_enter(dispatchGroup);
[self.shareItemProvider loadItem:item completion:^(NSURL *videoLocalUrl, NSError *error) {
MXStrongifyAndReturnIfNil(self);
if (error)
{
requestFailure(error);
return;
}
[self sendVideo:videoLocalUrl toRooms:rooms success:requestSuccess failure:requestFailure];
}];
}
if (item.type == ShareItemTypeImage)
{
dispatch_group_enter(dispatchGroup);
[self.shareItemProvider loadItem:item completion:^(id<NSSecureCoding> itemProviderItem, NSError *error) {
MXStrongifyAndReturnIfNil(self);
if (error)
{
requestFailure(error);
return;
}
NSData *imageData;
if ([(NSObject *)itemProviderItem isKindOfClass:[NSData class]])
{
imageData = (NSData*)itemProviderItem;
}
else if ([(NSObject *)itemProviderItem isKindOfClass:[NSURL class]])
{
NSURL *imageURL = (NSURL*)itemProviderItem;
imageData = [NSData dataWithContentsOfURL:imageURL];
}
else if ([(NSObject *)itemProviderItem isKindOfClass:[UIImage class]])
{
// An application can share directly an UIImage.
// The most common case is screenshot sharing without saving to file.
// As screenshot using PNG format when they are saved to file we also use PNG format when saving UIImage to NSData.
UIImage *image = (UIImage*)itemProviderItem;
imageData = UIImagePNGRepresentation(image);
}
if (!imageData)
{
requestFailure(error);
return;
}
if ([self.shareItemProvider areAllItemsImages])
{
// When all items are images, they're processed together from the
// pending list, immediately after the final image has been loaded.
[self.pendingImages addObject:imageData];
}
else
{
// Otherwise, the image is sent as is, without prompting for a resize
// as that wouldn't make much sense with multiple content types.
self.imageCompressionMode = ImageCompressionModeNone;
[self sendImageData:imageData toRooms:rooms success:requestSuccess failure:requestFailure];
}
// When there are multiple content types the image will have been sent above.
// Otherwise, if we have loaded all of the images we can send them all together.
if ([self.shareItemProvider areAllItemsImages])
{
if ([self.shareItemProvider areAllItemsLoaded])
{
MXWeakify(self);
void (^sendPendingImages)(void) = ^void() {
MXStrongifyAndReturnIfNil(self);
[self sendImageDatas:self.pendingImages.copy toRooms:rooms success:requestSuccess failure:requestFailure];
};
if (RiotSettings.shared.showMediaCompressionPrompt)
{
// Create a compression prompt which will be nil when the sizes can't be determined or if there are no pending images.
UIAlertController *compressionPrompt = [self compressionPromptForPendingImagesWithShareBlock:sendPendingImages];
if (compressionPrompt)
{
[self presentCompressionPrompt:compressionPrompt];
}
}
else
{
self.imageCompressionMode = ImageCompressionModeNone;
sendPendingImages();
}
}
else
{
dispatch_group_leave(dispatchGroup);
}
}
}];
}
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
[self resetPendingData];
if (errors)
{
failure(errors);
}
else
{
success();
}
});
}
// TODO: When select multiple images:
// - Enhance prompt to display sum of all file sizes for each compression.
// - Find a way to choose compression sizes for all images.
- (UIAlertController *)compressionPromptForPendingImagesWithShareBlock:(void(^)(void))shareBlock
{
if (!self.pendingImages.count)
{
return nil;
}
NSData *firstImageData = self.pendingImages.firstObject;
UIImage *firstImage = [UIImage imageWithData:firstImageData];
MXKImageCompressionSizes compressionSizes = [MXKTools availableCompressionSizesForImage:firstImage originalFileSize:firstImageData.length];
if (compressionSizes.small.fileSize == 0 && compressionSizes.medium.fileSize == 0 && compressionSizes.large.fileSize == 0)
{
self.imageCompressionMode = ImageCompressionModeNone;
MXLogDebug(@"[ShareManager] Bypass compression prompt and send originals for %lu image(s) due to undetermined file sizes", (unsigned long)self.pendingImages.count);
shareBlock();
return nil;
}
UIAlertController *compressionPrompt = [UIAlertController alertControllerWithTitle:[VectorL10n attachmentSizePromptTitle]
message:[VectorL10n attachmentSizePromptMessage]
preferredStyle:UIAlertControllerStyleActionSheet];
if (compressionSizes.small.fileSize)
{
NSString *title = [VectorL10n attachmentSmall:[MXTools fileSizeToString:compressionSizes.small.fileSize]];
MXWeakify(self);
[compressionPrompt addAction:[UIAlertAction actionWithTitle:title style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
MXStrongifyAndReturnIfNil(self);
self.imageCompressionMode = ImageCompressionModeSmall;
[self logCompressionSizeChoice:compressionSizes.small];
shareBlock();
}]];
}
if (compressionSizes.medium.fileSize)
{
NSString *title = [VectorL10n attachmentMedium:[MXTools fileSizeToString:compressionSizes.medium.fileSize]];
MXWeakify(self);
[compressionPrompt addAction:[UIAlertAction actionWithTitle:title style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
MXStrongifyAndReturnIfNil(self);
self.imageCompressionMode = ImageCompressionModeMedium;
[self logCompressionSizeChoice:compressionSizes.medium];
shareBlock();
}]];
}
// Do not offer the possibility to resize an image with a dimension above kLargeImageSizeMaxDimension, to prevent the risk of memory limit exception.
// TODO: Remove this condition when issue https://github.com/vector-im/riot-ios/issues/2341 will be fixed.
if (compressionSizes.large.fileSize && (MAX(compressionSizes.large.imageSize.width, compressionSizes.large.imageSize.height) <= kLargeImageSizeMaxDimension))
{
NSString *title = [VectorL10n attachmentLarge:[MXTools fileSizeToString:compressionSizes.large.fileSize]];
MXWeakify(self);
[compressionPrompt addAction:[UIAlertAction actionWithTitle:title style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
MXStrongifyAndReturnIfNil(self);
self.imageCompressionMode = ImageCompressionModeLarge;
self.actualLargeSize = compressionSizes.actualLargeSize;
[self logCompressionSizeChoice:compressionSizes.large];
shareBlock();
}]];
}
// To limit memory consumption when encrypting, we suggest the original resolution only if the image size is moderate
if (compressionSizes.original.fileSize < kImageMaxFileSize)
{
NSString *fileSizeString = [MXTools fileSizeToString:compressionSizes.original.fileSize];
NSString *title = [VectorL10n attachmentOriginal:fileSizeString];
MXWeakify(self);
[compressionPrompt addAction:[UIAlertAction actionWithTitle:title style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
MXStrongifyAndReturnIfNil(self);
self.imageCompressionMode = ImageCompressionModeNone;
[self logCompressionSizeChoice:compressionSizes.original];
shareBlock();
}]];
}
[compressionPrompt addAction:[UIAlertAction actionWithTitle:[VectorL10n cancel]
style:UIAlertActionStyleCancel
handler:nil]];
return compressionPrompt;
}
- (NSString*)utiFromImageData:(NSData*)imageData
{
CGImageSourceRef imageSource = CGImageSourceCreateWithData((CFDataRef)imageData, NULL);
NSString *uti = (NSString*)CGImageSourceGetType(imageSource);
CFRelease(imageSource);
return uti;
}
- (NSString*)mimeTypeFromUTI:(NSString*)uti
{
return (__bridge_transfer NSString *) UTTypeCopyPreferredTagWithClass((__bridge CFStringRef)uti, kUTTagClassMIMEType);
}
- (BOOL)isResizingSupportedForImageData:(NSData*)imageData
{
NSString *imageUTI = [self utiFromImageData:imageData];
return [self isResizingSupportedForUTI:imageUTI];
}
- (BOOL)isResizingSupportedForUTI:(NSString*)imageUTI
{
if ([imageUTI isEqualToString:(__bridge NSString *)kUTTypePNG] || [imageUTI isEqualToString:(__bridge NSString *)kUTTypeJPEG])
{
return YES;
}
return NO;
}
- (CGSize)imageSizeFromImageData:(NSData*)imageData
{
CGFloat width = 0.0f;
CGFloat height = 0.0f;
CGImageSourceRef imageSource = CGImageSourceCreateWithData((CFDataRef)imageData, NULL);
CFDictionaryRef imageProperties = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, NULL);
CFRelease(imageSource);
if (imageProperties != NULL)
{
CFNumberRef widthNumber = CFDictionaryGetValue(imageProperties, kCGImagePropertyPixelWidth);
CFNumberRef heightNumber = CFDictionaryGetValue(imageProperties, kCGImagePropertyPixelHeight);
CFNumberRef orientationNumber = CFDictionaryGetValue(imageProperties, kCGImagePropertyOrientation);
if (widthNumber != NULL)
{
CFNumberGetValue(widthNumber, kCFNumberCGFloatType, &width);
}
if (heightNumber != NULL)
{
CFNumberGetValue(heightNumber, kCFNumberCGFloatType, &height);
}
// Check orientation and flip size if required
if (orientationNumber != NULL)
{
int orientation;
CFNumberGetValue(orientationNumber, kCFNumberIntType, &orientation);
// For orientation from kCGImagePropertyOrientationLeftMirrored to kCGImagePropertyOrientationLeft flip size
if (orientation >= 5)
{
CGFloat tempWidth = width;
width = height;
height = tempWidth;
}
}
CFRelease(imageProperties);
}
return CGSizeMake(width, height);
}
- (void)logCompressionSizeChoice:(MXKImageCompressionSize)compressionSize
{
NSString *fileSize = [MXTools fileSizeToString:compressionSize.fileSize round:NO];
NSUInteger imageWidth = compressionSize.imageSize.width;
NSUInteger imageHeight = compressionSize.imageSize.height;
MXLogDebug(@"[ShareItemSender] User choose image compression with output size %lu x %lu (output file size: %@)", (unsigned long)imageWidth, (unsigned long)imageHeight, fileSize);
MXLogDebug(@"[ShareItemSender] Number of images to send: %lu", (unsigned long)self.pendingImages.count);
}
#pragma mark - Notifications
- (void)onMediaLoaderStateDidChange:(NSNotification *)notification
{
MXMediaLoader *loader = (MXMediaLoader*)notification.object;
// Consider only upload progress
switch (loader.state) {
case MXMediaLoaderStateUploadInProgress:
{
self.imageUploadProgresses[loader.uploadId] = (NSNumber *)loader.statisticsDict[kMXMediaLoaderProgressValueKey];
const NSInteger totalImagesCount = self.pendingImages.count;
CGFloat totalProgress = 0.0;
for (NSNumber *progress in self.imageUploadProgresses.allValues)
{
totalProgress += progress.floatValue/totalImagesCount;
}
[self.delegate shareItemSender:self didUpdateProgress:totalProgress];
break;
}
default:
break;
}
}
#pragma mark - Sharing
- (void)sendText:(NSString *)text
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
[self didStartSending];
if (!text)
{
MXLogError(@"[ShareItemSender] Invalid text.");
failure(nil);
return;
}
__block NSError *error = nil;
dispatch_group_t dispatchGroup = dispatch_group_create();
for (MXRoom *room in rooms) {
dispatch_group_enter(dispatchGroup);
[room sendTextMessage:text threadId:nil success:^(NSString *eventId) {
dispatch_group_leave(dispatchGroup);
} failure:^(NSError *innerError) {
MXLogErrorDetails(@"[ShareItemSender] sendTextMessage failed with error", @{
@"error": error ?: @"unknown"
});
error = innerError;
dispatch_group_leave(dispatchGroup);
}];
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
if(error) {
failure(error);
} else {
success();
}
});
}
- (void)sendFileWithUrl:(NSURL *)fileUrl
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
[self didStartSending];
if (!fileUrl)
{
MXLogError(@"[ShareItemSender] Invalid file url.");
failure(nil);
return;
}
NSString *mimeType;
CFStringRef uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (__bridge CFStringRef)[fileUrl pathExtension] , NULL);
mimeType = [self mimeTypeFromUTI:(__bridge NSString *)uti];
CFRelease(uti);
__block NSError *error = nil;
dispatch_group_t dispatchGroup = dispatch_group_create();
for (MXRoom *room in rooms) {
dispatch_group_enter(dispatchGroup);
[room sendFile:fileUrl mimeType:mimeType threadId:nil localEcho:nil success:^(NSString *eventId) {
dispatch_group_leave(dispatchGroup);
} failure:^(NSError *innerError) {
MXLogErrorDetails(@"[ShareItemSender] sendFile failed with error", @{
@"error": innerError ?: @"unknown"
});
error = innerError;
dispatch_group_leave(dispatchGroup);
} keepActualFilename:YES];
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
if(error) {
failure(error);
} else {
success();
}
});
}
- (void)sendVideo:(NSURL *)videoLocalUrl
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
AVURLAsset *videoAsset = [[AVURLAsset alloc] initWithURL:videoLocalUrl options:nil];
MXWeakify(self);
void (^sendVideo)(void) = ^void() {
MXStrongifyAndReturnIfNil(self);
[self didStartSending];
if (!videoLocalUrl)
{
MXLogError(@"[ShareManager] Invalid video file url.");
failure(nil);
return;
}
// Retrieve the video frame at 1 sec to define the video thumbnail
AVAssetImageGenerator *assetImageGenerator = [AVAssetImageGenerator assetImageGeneratorWithAsset:videoAsset];
assetImageGenerator.appliesPreferredTrackTransform = YES;
CMTime time = CMTimeMake(1, 1);
CGImageRef imageRef = [assetImageGenerator copyCGImageAtTime:time actualTime:NULL error:nil];
// Finalize video attachment
UIImage *videoThumbnail = [[UIImage alloc] initWithCGImage:imageRef];
CFRelease(imageRef);
__block NSError *error = nil;
dispatch_group_t dispatchGroup = dispatch_group_create();
for (MXRoom *room in rooms) {
dispatch_group_enter(dispatchGroup);
[room sendVideoAsset:videoAsset withThumbnail:videoThumbnail threadId:nil localEcho:nil success:^(NSString *eventId) {
dispatch_group_leave(dispatchGroup);
} failure:^(NSError *innerError) {
MXLogErrorDetails(@"[ShareManager] Failed sending video with error", @{
@"error": innerError ?: @"unknown"
});
error = innerError;
dispatch_group_leave(dispatchGroup);
}];
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
if(error) {
failure(error);
} else {
success();
}
});
};
BOOL allRoomsAreUnencrypted = ![self roomsContainEncryptedRoom:rooms];
// When rooms are unencrypted convert the video according to the user's normal preferences
if (allRoomsAreUnencrypted)
{
if (!RiotSettings.shared.showMediaCompressionPrompt)
{
[MXSDKOptions sharedInstance].videoConversionPresetName = AVAssetExportPreset1920x1080;
sendVideo();
}
else
{
UIAlertController *compressionPrompt = [MXKTools videoConversionPromptForVideoAsset:videoAsset withCompletion:^(NSString *presetName) {
// If the preset name is nil, the user cancelled.
if (!presetName)
{
return;
}
// Set the chosen video conversion preset.
[MXSDKOptions sharedInstance].videoConversionPresetName = presetName;
sendVideo();
}];
[self presentCompressionPrompt:compressionPrompt];
}
}
else
{
// When rooms are encrypted we quickly run out of memory encrypting the video
// Prompt the user if they're happy to send a low quality video (320p).
UIAlertController *lowQualityPrompt = [UIAlertController alertControllerWithTitle:VectorL10n.shareExtensionLowQualityVideoTitle
message:[VectorL10n shareExtensionLowQualityVideoMessage:AppInfo.current.displayName]
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:VectorL10n.cancel style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
// Do nothing
}];
UIAlertAction *sendAction = [UIAlertAction actionWithTitle:VectorL10n.shareExtensionSendNow style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[MXSDKOptions sharedInstance].videoConversionPresetName = AVAssetExportPresetMediumQuality;
sendVideo();
}];
[lowQualityPrompt addAction:cancelAction];
[lowQualityPrompt addAction:sendAction];
[lowQualityPrompt setPreferredAction:sendAction];
[self presentCompressionPrompt:lowQualityPrompt];
}
}
- (void)sendVoiceMessage:(NSURL *)fileUrl
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
[self didStartSending];
if (!fileUrl)
{
MXLogError(@"[ShareItemSender] Invalid voice message file url.");
failure(nil);
return;
}
__block NSError *error = nil;
dispatch_group_t dispatchGroup = dispatch_group_create();
for (MXRoom *room in rooms) {
dispatch_group_enter(dispatchGroup);
[room sendVoiceMessage:fileUrl mimeType:nil duration:0.0 samples:nil threadId:nil localEcho:nil success:^(NSString *eventId) {
dispatch_group_leave(dispatchGroup);
} failure:^(NSError *innerError) {
MXLogErrorDetails(@"[ShareItemSender] sendVoiceMessage failed with error", @{
@"error": error ?: @"unknown"
});
error = innerError;
dispatch_group_leave(dispatchGroup);
} keepActualFilename:YES];
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
if(error) {
failure(error);
} else {
success();
}
});
}
- (void)sendImageDatas:(NSArray<id<ShareItemProtocol>> *)imageDatas
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
if (imageDatas.count == 0)
{
MXLogError(@"[ShareManager] sendImages: no images to send.");
failure(nil);
return;
}
[self didStartSending];
dispatch_group_t requestsGroup = dispatch_group_create();
__block NSError *firstRequestError;
NSUInteger index = 0;
for (NSData *imageData in imageDatas)
{
@autoreleasepool
{
dispatch_group_enter(requestsGroup);
[self sendImageData:imageData toRooms:rooms success:^{
dispatch_group_leave(requestsGroup);
} failure:^(NSError *error) {
if (error && !firstRequestError)
{
firstRequestError = error;
}
dispatch_group_leave(requestsGroup);
}];
}
index++;
}
dispatch_group_notify(requestsGroup, dispatch_get_main_queue(), ^{
if (firstRequestError)
{
failure(firstRequestError);
}
else
{
success();
}
});
}
- (void)sendImageData:(NSData *)imageData
toRooms:(NSArray<MXRoom *> *)rooms
success:(dispatch_block_t)success
failure:(void(^)(NSError *error))failure
{
[self didStartSending];
NSString *imageUTI;
NSString *mimeType;
if (!mimeType)
{
imageUTI = [self utiFromImageData:imageData];
if (imageUTI)
{
mimeType = [self mimeTypeFromUTI:imageUTI];
}
}
if (!mimeType)
{
MXLogError(@"[ShareManager] sendImage failed. Cannot determine MIME type .");
if (failure)
{
failure(nil);
}
return;
}
CGSize imageSize;
NSData *finalImageData;
// Only resize JPEG or PNG files
if ([self isResizingSupportedForUTI:imageUTI])
{
UIImage *convertedImage;
CGSize newImageSize;
switch (self.imageCompressionMode) {
case ImageCompressionModeSmall:
newImageSize = CGSizeMake(MXKTOOLS_SMALL_IMAGE_SIZE, MXKTOOLS_SMALL_IMAGE_SIZE);
break;
case ImageCompressionModeMedium:
newImageSize = CGSizeMake(MXKTOOLS_MEDIUM_IMAGE_SIZE, MXKTOOLS_MEDIUM_IMAGE_SIZE);
break;
case ImageCompressionModeLarge:
newImageSize = CGSizeMake(self.actualLargeSize, self.actualLargeSize);
break;
default:
newImageSize = CGSizeZero;
break;
}
if (!CGSizeEqualToSize(newImageSize, CGSizeZero))
{
// Resize the image and set image in right orientation too
convertedImage = [MXKTools resizeImageWithData:imageData toFitInSize:newImageSize];
}
if (convertedImage)
{
if ([imageUTI isEqualToString:(__bridge NSString *)kUTTypePNG])
{
finalImageData = UIImagePNGRepresentation(convertedImage);
}
else if ([imageUTI isEqualToString:(__bridge NSString *)kUTTypeJPEG])
{
finalImageData = UIImageJPEGRepresentation(convertedImage, 0.9);
}
imageSize = convertedImage.size;
}
else
{
finalImageData = imageData;
imageSize = [self imageSizeFromImageData:imageData];
}
}
else
{
finalImageData = imageData;
imageSize = [self imageSizeFromImageData:imageData];
}
__block NSError *error = nil;
dispatch_group_t dispatchGroup = dispatch_group_create();
for (MXRoom *room in rooms) {
UIImage *thumbnail = nil;
if (room.summary.isEncrypted) // Thumbnail is useful only in case of encrypted room
{
thumbnail = [MXKTools resizeImageWithData:imageData toFitInSize:kThumbnailSize];
}
dispatch_group_enter(dispatchGroup);
[room sendImage:finalImageData withImageSize:imageSize mimeType:mimeType andThumbnail:thumbnail threadId:nil localEcho:nil success:^(NSString *eventId) {
dispatch_group_leave(dispatchGroup);
} failure:^(NSError *innerError) {
MXLogErrorDetails(@"[ShareManager] sendImage failed with error", @{
@"error": error ?: @"unknown"
});
error = innerError;
dispatch_group_leave(dispatchGroup);
}];
}
dispatch_group_notify(dispatchGroup, dispatch_get_main_queue(), ^{
if(error) {
failure(error);
} else {
success();
}
});
}
@end