Changed default behaviour to pass uri instead of base64 via onPictureTaken

For performance reasons.

Author: nabati

ios/DocumentScannerView.h

@@ -8,6 +8,7 @@
 @property (nonatomic, assign) NSInteger detectionCountBeforeCapture;
 @property (assign, nonatomic) NSInteger stableCounter;
 @property (nonatomic, assign) float quality;
+@property (nonatomic, assign) BOOL useBase64;
 
 - (void) capture;
 

ios/DocumentScannerView.m

@@ -34,8 +34,7 @@ - (void) didDetectRectangle:(CIRectangleFeature *)rectangle withType:(IPDFRectan
 
 - (void) capture {
     [self captureImageWithCompletionHander:^(UIImage *croppedImage, UIImage *initialImage, CIRectangleFeature *rectangleFeature) {
-
-        if (self.onPictureTaken) {
+      if (self.onPictureTaken) {
             NSData *croppedImageData = UIImageJPEGRepresentation(croppedImage, self.quality);
 
             if (initialImage.imageOrientation != UIImageOrientationUp) {
@@ -58,10 +57,24 @@ - (void) capture {
                                      @"bottomLeft": @{ @"y": @(rectangleFeature.bottomRight.x), @"x": @(rectangleFeature.bottomRight.y)},
                                      @"bottomRight": @{ @"y": @(rectangleFeature.topRight.x), @"x": @(rectangleFeature.topRight.y)},
                                      } : [NSNull null];
-            self.onPictureTaken(@{
-                                  @"croppedImage": [croppedImageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength],
-                                  @"initialImage": [initialImageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength],
-                                  @"rectangleCoordinates": rectangleCoordinates });
+
+            if (self.useBase64) {
+              self.onPictureTaken(@{
+                                    @"croppedImage": [croppedImageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength],
+                                    @"initialImage": [initialImageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength],
+                                    @"rectangleCoordinates": rectangleCoordinates });
+            } else {
+               NSString *croppedFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"cropped_img_%i.jpeg",(int)[NSDate date].timeIntervalSince1970]];
+               NSString *initialFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"initial_img_%i.jpeg",(int)[NSDate date].timeIntervalSince1970]];
+
+              [croppedImageData writeToFile:croppedFilePath atomically:YES];
+              [initialImageData writeToFile:initialFilePath atomically:YES];
+
+               self.onPictureTaken(@{
+                                     @"croppedImage": croppedFilePath,
+                                     @"initialImage": initialFilePath,
+                                     @"rectangleCoordinates": rectangleCoordinates });
+            }
         }
         [self stop];
     }];

ios/RNPdfScannerManager.m

@@ -22,6 +22,7 @@ - (dispatch_queue_t)methodQueue
 RCT_EXPORT_VIEW_PROPERTY(overlayColor, UIColor)
 RCT_EXPORT_VIEW_PROPERTY(enableTorch, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(useFrontCam, BOOL)
+RCT_EXPORT_VIEW_PROPERTY(useBase64, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(detectionCountBeforeCapture, NSInteger)
 RCT_EXPORT_VIEW_PROPERTY(detectionRefreshRateInMS, NSInteger)
 RCT_EXPORT_VIEW_PROPERTY(saturation, float)