Files
react-native-firebase/packages/ml-vision/ios/RNFBMLVision/RNFBMLVisionLandmarkRecognizerModule.m
2019-08-07 12:40:53 +01:00

105 lines
3.7 KiB
Objective-C

/**
* Copyright (c) 2016-present Invertase Limited & Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this library except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#import <React/RCTUtils.h>
#import <RNFBApp/RNFBSharedUtils.h>
#import "RNFBMLVisionLandmarkRecognizerModule.h"
#import "RNFBMLVisionCommon.h"
@implementation RNFBMLVisionLandmarkRecognizerModule
#pragma mark -
#pragma mark Module Setup
RCT_EXPORT_MODULE();
#pragma mark -
#pragma mark Firebase ML Kit Vision Methods
RCT_EXPORT_METHOD(cloudLandmarkRecognizerProcessImage:
(FIRApp *) firebaseApp
: (NSString *)filePath
: (NSDictionary *)cloudLandmarkRecognizerOptions
: (RCTPromiseResolveBlock)resolve
: (RCTPromiseRejectBlock)reject
) {
[RNFBMLVisionCommon UIImageForFilePath:filePath completion:^(NSArray *errorCodeMessageArray, UIImage *image) {
if (errorCodeMessageArray != nil) {
[RNFBSharedUtils rejectPromiseWithUserInfo:reject userInfo:(NSMutableDictionary *) @{
@"code": errorCodeMessageArray[0],
@"message": errorCodeMessageArray[1],
}];
return;
}
FIRVisionImage *visionImage = [[FIRVisionImage alloc] initWithImage:image];
FIRVision *vision = [FIRVision visionForApp:firebaseApp];
FIRVisionCloudDetectorOptions *options = [[FIRVisionCloudDetectorOptions alloc] init];
options.maxResults = [cloudLandmarkRecognizerOptions[@"maxResults"] unsignedIntegerValue];
if (cloudLandmarkRecognizerOptions[@"apiKeyOverride"]) {
options.APIKeyOverride = cloudLandmarkRecognizerOptions[@"apiKeyOverride"];
}
NSInteger *model = [cloudLandmarkRecognizerOptions[@"model"] pointerValue];
if (model == (NSInteger *) 1) {
options.modelType = FIRVisionCloudModelTypeStable;
} else if (model == (NSInteger *) 2) {
options.modelType = FIRVisionCloudModelTypeLatest;
}
FIRVisionCloudLandmarkDetector *landmarkDetector = [vision cloudLandmarkDetectorWithOptions:options];
[landmarkDetector detectInImage:visionImage completion:^(NSArray<FIRVisionCloudLandmark *> *landmarks, NSError *error) {
if (error != nil) {
[RNFBSharedUtils rejectPromiseWithUserInfo:reject userInfo:(NSMutableDictionary *) @{
@"code": @"unknown",
@"message": [error localizedDescription],
}];
return;
}
NSMutableArray *landmarksFormatted = [[NSMutableArray alloc] init];
for (FIRVisionCloudLandmark *landmark in landmarks) {
NSMutableDictionary *visionLandmark = [[NSMutableDictionary alloc] init];
visionLandmark[@"confidence"] = landmark.confidence;
visionLandmark[@"entityId"] = landmark.entityId;
visionLandmark[@"landmark"] = landmark.landmark;
visionLandmark[@"boundingBox"] = [RNFBMLVisionCommon rectToIntArray:landmark.frame];
NSMutableArray *locations = [[NSMutableArray alloc] init];
for (FIRVisionLatitudeLongitude *location in landmark.locations) {
NSMutableArray *loc = [[NSMutableArray alloc] init];
[loc addObject:@([location.latitude doubleValue])];
[loc addObject:@([location.longitude doubleValue])];
[locations addObject:loc];
}
visionLandmark[@"locations"] = locations;
[landmarksFormatted addObject:visionLandmark];
}
resolve(landmarksFormatted);
}];
}];
}
@end