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fix auto-download when app is in background

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This commit is contained in:
Danmei Chen 2020-04-04 17:32:06 +02:00
parent 9acc53daf0
commit aa48e7c36c
1 changed files with 124 additions and 3 deletions
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127
Classes/LinphoneUI/UIChatBubblePhotoCell.m
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@ -161,11 +161,132 @@ static const CGFloat CELL_IMAGE_X_MARGIN = 100;
NSString *localVideo = [LinphoneManager getMessageAppDataForKey:@"localvideo" inMessage:self.message];
NSString *localFile = [LinphoneManager getMessageAppDataForKey:@"localfile" inMessage:self.message];
assert(is_external || localImage || localVideo || localFile);
if (!(localImage || localVideo || localFile)) {
// If the file has been downloaded in background, save it in the folders and display it.
ChatConversationView *view = VIEW(ChatConversationView);
//TODO: migrate with "linphone_iphone_file_transfer_recv"
LinphoneContent *content = linphone_chat_message_get_file_transfer_information(self.message);
NSString *name = [NSString stringWithUTF8String:linphone_content_get_name(content)];
// get download path
NSString *filePath = [[LinphoneManager cacheDirectory] stringByAppendingPathComponent:name];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:filePath]) {
NSData* data = [NSData dataWithContentsOfFile:filePath];
NSString *fileType = [NSString stringWithUTF8String:linphone_content_get_type(content)];
// define a block , not called immediately. To avoid crash when saving photo before PHAuthorizationStatusNotDetermined.
void (^block)(void)= ^ {
if ([fileType isEqualToString:@"image"]) {
// we're finished, save the image and update the message
UIImage *image = [UIImage imageWithData:data];
if (!image) {
[view showFileDownloadError];
return;
}
__block PHObjectPlaceholder *placeHolder;
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetCreationRequest *request = [PHAssetCreationRequest creationRequestForAssetFromImage:image];
placeHolder = [request placeholderForCreatedAsset];
} completionHandler:^(BOOL success, NSError *error) {
dispatch_async(dispatch_get_main_queue(), ^{
if (error) {
LOGE(@"Cannot save image data downloaded [%@]", [error localizedDescription]);
[LinphoneManager setValueInMessageAppData:nil forKey:@"localimage" inMessage:self.message];
UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Transfer error", nil)
message:NSLocalizedString(@"Cannot write image to photo library",
nil)
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {}];
[errView addAction:defaultAction];
[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
} else {
LOGI(@"Image saved to [%@]", [placeHolder localIdentifier]);
[LinphoneManager setValueInMessageAppData:[placeHolder localIdentifier]
forKey:@"localimage"
inMessage:self.message];
[self updateButtons:[LinphoneManager getMessageAppDataForKey:@"localimage" inMessage:self.message] localVideo:localVideo localFile:localFile];
}
});
}];
} else if([fileType isEqualToString:@"video"]) {
// until image is properly saved, keep a reminder on it so that the
// chat bubble is aware of the fact that image is being saved to device
__block PHObjectPlaceholder *placeHolder;
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetCreationRequest *request = [PHAssetCreationRequest creationRequestForAssetFromVideoAtFileURL:[NSURL fileURLWithPath:filePath]];
placeHolder = [request placeholderForCreatedAsset];
} completionHandler:^(BOOL success, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
if (error) {
LOGE(@"Cannot save video data downloaded [%@]", [error localizedDescription]);
[LinphoneManager setValueInMessageAppData:nil forKey:@"localvideo" inMessage:self.message];
UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Transfer error", nil)
message:NSLocalizedString(@"Cannot write video to photo library",
nil)
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {}];
[errView addAction:defaultAction];
[PhoneMainView.instance presentViewController:errView animated:YES completion:nil];
} else {
LOGI(@"video saved to [%@]", [placeHolder localIdentifier]);
[LinphoneManager setValueInMessageAppData:[placeHolder localIdentifier]
forKey:@"localvideo"
inMessage:self.message];
[self updateButtons:localImage localVideo:[LinphoneManager getMessageAppDataForKey:@"localvideo" inMessage:self.message] localFile:localFile];
}
});
}];
}
};
// When you save an image or video to a photo library, make sure that it is allowed. Otherwise, there will be a backup error.
if ([fileType isEqualToString:@"image"] || [fileType isEqualToString:@"video"]) {
if ([PHPhotoLibrary authorizationStatus] == PHAuthorizationStatusAuthorized) {
block();
} else {
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
dispatch_async(dispatch_get_main_queue(), ^{
if ([PHPhotoLibrary authorizationStatus] == PHAuthorizationStatusAuthorized) {
block();
} else {
[[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Photo's permission", nil) message:NSLocalizedString(@"Photo not authorized", nil) delegate:nil cancelButtonTitle:nil otherButtonTitles:@"Continue", nil] show];
}
});
}];
}
} else {
NSString *key = @"localfile";
//write file to path
if([view writeFileInICloud:data fileURL:[view getICloudFileUrl:name]]) {
dispatch_async(dispatch_get_main_queue(), ^{
[LinphoneManager setValueInMessageAppData:name forKey:key inMessage:self.message];
[self updateButtons:localImage localVideo:localVideo localFile:[LinphoneManager getMessageAppDataForKey:@"localfile" inMessage:self.message]];
});
} else {
LOGE(@"[Auto download error] can not save the file %@", name);
}
}
}
}
[self updateButtons:localImage localVideo:localVideo localFile:localFile];
}
- (void)updateButtons: (NSString *)localImage localVideo:(NSString *)localVideo localFile:(NSString *)localFile {
LinphoneContent *fileContent = linphone_chat_message_get_file_transfer_information(self.message);
NSString *type = fileContent ? [NSString stringWithUTF8String:linphone_content_get_type(fileContent)] : nil;
if (!(localImage || localVideo || localFile)) {
if (!(localImage || localVideo || localFile)) {
_playButton.hidden = YES;
_fileName.hidden = _fileView.hidden = _fileButton.hidden = YES;
_messageImageView.hidden = _cancelButton.hidden = (_ftd.message == nil);