114 lines
4.4 KiB
Plaintext
114 lines
4.4 KiB
Plaintext
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <React/RCTImageEditingManager.h>
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#import <FBReactNativeSpec/FBReactNativeSpec.h>
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#import <React/RCTConvert.h>
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#import <React/RCTImageLoader.h>
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#import <React/RCTImageLoaderProtocol.h>
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#import <React/RCTImageStoreManager.h>
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#import <React/RCTImageUtils.h>
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#import <React/RCTLog.h>
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#import <React/RCTUtils.h>
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#import <UIKit/UIKit.h>
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#import "RCTImagePlugins.h"
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@interface RCTImageEditingManager () <NativeImageEditorSpec>
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@end
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@implementation RCTImageEditingManager
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RCT_EXPORT_MODULE()
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@synthesize moduleRegistry = _moduleRegistry;
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/**
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* Crops an image and adds the result to the image store.
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*
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* @param imageRequest An image URL
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* @param cropData Dictionary with `offset`, `size` and `displaySize`.
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* `offset` and `size` are relative to the full-resolution image size.
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* `displaySize` is an optimization - if specified, the image will
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* be scaled down to `displaySize` rather than `size`.
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* All units are in px (not points).
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*/
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RCT_EXPORT_METHOD(cropImage
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: (NSURLRequest *)imageRequest cropData
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: (JS::NativeImageEditor::Options &)cropData successCallback
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: (RCTResponseSenderBlock)successCallback errorCallback
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: (RCTResponseSenderBlock)errorCallback)
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{
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CGRect rect = {
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[RCTConvert CGPoint:@{
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@"x" : @(cropData.offset().x()),
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@"y" : @(cropData.offset().y()),
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}],
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[RCTConvert CGSize:@{
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@"width" : @(cropData.size().width()),
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@"height" : @(cropData.size().height()),
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}]
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};
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// We must keep a copy of cropData so that we can access data from it at a later time
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JS::NativeImageEditor::Options cropDataCopy = cropData;
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[[_moduleRegistry moduleForName:"ImageLoader"]
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loadImageWithURLRequest:imageRequest
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callback:^(NSError *error, UIImage *image) {
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if (error) {
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errorCallback(@[ RCTJSErrorFromNSError(error) ]);
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return;
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}
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// Crop image
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CGSize targetSize = rect.size;
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CGRect targetRect = {{-rect.origin.x, -rect.origin.y}, image.size};
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CGAffineTransform transform = RCTTransformFromTargetRect(image.size, targetRect);
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UIImage *croppedImage = RCTTransformImage(image, targetSize, image.scale, transform);
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// Scale image
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if (cropDataCopy.displaySize()) {
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targetSize = [RCTConvert CGSize:@{
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@"width" : @(cropDataCopy.displaySize()->width()),
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@"height" : @(cropDataCopy.displaySize()->height())
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}]; // in pixels
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RCTResizeMode resizeMode = [RCTConvert RCTResizeMode:cropDataCopy.resizeMode() ?: @"contain"];
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targetRect = RCTTargetRect(croppedImage.size, targetSize, 1, resizeMode);
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transform = RCTTransformFromTargetRect(croppedImage.size, targetRect);
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croppedImage = RCTTransformImage(croppedImage, targetSize, image.scale, transform);
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}
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// Store image
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[[self->_moduleRegistry moduleForName:"ImageStoreManager"]
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storeImage:croppedImage
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withBlock:^(NSString *croppedImageTag) {
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if (!croppedImageTag) {
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NSString *errorMessage = @"Error storing cropped image in RCTImageStoreManager";
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RCTLogWarn(@"%@", errorMessage);
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errorCallback(@[ RCTJSErrorFromNSError(RCTErrorWithMessage(errorMessage)) ]);
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return;
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}
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successCallback(@[ croppedImageTag ]);
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}];
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}];
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}
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- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:
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(const facebook::react::ObjCTurboModule::InitParams &)params
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{
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return std::make_shared<facebook::react::NativeImageEditorSpecJSI>(params);
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}
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@end
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Class RCTImageEditingManagerCls()
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{
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return RCTImageEditingManager.class;
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}
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