108 lines
3.8 KiB
Plaintext
108 lines
3.8 KiB
Plaintext
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/*
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* Copyright (c) Facebook, Inc. and its 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/RCTImageStoreManager.h>
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#import <React/RCTImageUtils.h>
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#import <React/RCTImageLoaderProtocol.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 bridge = _bridge;
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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:(NSURLRequest *)imageRequest
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cropData:(JS::NativeImageEditor::Options &)cropData
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successCallback:(RCTResponseSenderBlock)successCallback
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errorCallback:(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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[[_bridge moduleForName:@"ImageLoader" lazilyLoadIfNecessary:YES]
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loadImageWithURLRequest:imageRequest 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:@{@"width": @(cropDataCopy.displaySize()->width()), @"height": @(cropDataCopy.displaySize()->height())}]; // 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->_bridge.imageStoreManager storeImage:croppedImage 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>)
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getTurboModuleWithJsInvoker:(std::shared_ptr<facebook::react::CallInvoker>)jsInvoker
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nativeInvoker:(std::shared_ptr<facebook::react::CallInvoker>)nativeInvoker
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perfLogger:(id<RCTTurboModulePerformanceLogger>)perfLogger
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{
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return std::make_shared<facebook::react::NativeImageEditorSpecJSI>(self, jsInvoker, nativeInvoker, perfLogger);
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}
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@end
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Class RCTImageEditingManagerCls() {
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return RCTImageEditingManager.class;
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}
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