263 lines
10 KiB
Objective-C
263 lines
10 KiB
Objective-C
/*
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* Copyright [2019] [Doric.Pub]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// DoricImageNode.m
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// Doric
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//
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// Created by pengfei.zhou on 2019/8/6.
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//
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#import "DoricImageNode.h"
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#import "YYWebImage.h"
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#import "DoricExtensions.h"
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#import "DoricUtil.h"
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#import "DoricSuperNode.h"
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@interface DoricImageView : YYAnimatedImageView
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@end
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@implementation DoricImageView
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@end
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@interface DoricImageNode ()
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@property(nonatomic, copy) NSString *loadCallbackId;
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@property(nonatomic, assign) UIViewContentMode contentMode;
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@property(nonatomic, strong) NSNumber *placeHolderColor;
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@property(nonatomic, strong) NSString *placeHolderImage;
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@property(nonatomic, strong) NSNumber *errorColor;
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@property(nonatomic, strong) NSString *errorImage;
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@property(nonatomic, strong) UIVisualEffectView *blurEffectView;
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@property(nonatomic, strong) NSDictionary *stretchInsetDic;
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@property(nonatomic, assign) CGFloat imageScale;
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@end
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@implementation DoricImageNode
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- (UIImageView *)build {
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self.imageScale = UIScreen.mainScreen.scale;
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return [[DoricImageView new] also:^(UIImageView *it) {
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it.clipsToBounds = YES;
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it.contentMode = UIViewContentModeScaleAspectFill;
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}];
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}
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- (void)blend:(NSDictionary *)props {
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[props[@"placeHolderColor"] also:^(id it) {
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self.placeHolderColor = it;
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}];
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[props[@"placeHolderImage"] also:^(id it) {
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self.placeHolderImage = it;
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}];
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[props[@"errorColor"] also:^(id it) {
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self.errorColor = it;
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}];
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[props[@"errorImage"] also:^(id it) {
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self.errorImage = it;
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}];
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[props[@"imageScale"] also:^(NSNumber *it) {
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self.imageScale = it.floatValue;
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}];
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[super blend:props];
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}
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- (UIImage *)currentPlaceHolderImage {
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if (self.placeHolderImage) {
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return [UIImage imageNamed:self.placeHolderImage];
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}
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if (self.placeHolderColor) {
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UIColor *color = DoricColor(self.placeHolderColor);
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CGRect rect = CGRectMake(0, 0, 1, 1);
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self.view.contentMode = UIViewContentModeScaleToFill;
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UIGraphicsBeginImageContextWithOptions(rect.size, NO, [UIScreen mainScreen].scale);
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CGContextRef context = UIGraphicsGetCurrentContext();
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CGContextSetFillColorWithColor(context, color.CGColor);
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CGContextFillRect(context, rect);
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UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return image;
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}
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return self.doricContext.driver.registry.defaultPlaceHolderImage;
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}
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- (UIImage *)currentErrorImage {
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if (self.errorImage) {
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return [UIImage imageNamed:self.errorImage];
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}
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if (self.errorColor) {
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UIColor *color = DoricColor(self.errorColor);
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CGRect rect = CGRectMake(0, 0, 1, 1);
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self.view.contentMode = UIViewContentModeScaleToFill;
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UIGraphicsBeginImageContextWithOptions(rect.size, NO, [UIScreen mainScreen].scale);
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CGContextRef context = UIGraphicsGetCurrentContext();
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CGContextSetFillColorWithColor(context, color.CGColor);
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CGContextFillRect(context, rect);
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UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return image;
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}
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return self.doricContext.driver.registry.defaultErrorImage;
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}
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- (void)blendView:(UIImageView *)view forPropName:(NSString *)name propValue:(id)prop {
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if ([@"imageUrl" isEqualToString:name]) {
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__weak typeof(self) _self = self;
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__block BOOL async = NO;
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view.doricLayout.undefined = YES;
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[view yy_setImageWithURL:[NSURL URLWithString:prop] placeholder:[self currentPlaceHolderImage] options:0 completion:^(UIImage *image, NSURL *url, YYWebImageFromType from, YYWebImageStage stage, NSError *error) {
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__strong typeof(_self) self = _self;
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if (self.placeHolderColor || self.errorColor) {
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self.view.contentMode = self.contentMode;
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}
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view.doricLayout.undefined = NO;
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if (error) {
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[[self currentErrorImage] also:^(UIImage *it) {
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self.view.image = it;
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}];
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if (self.loadCallbackId.length > 0) {
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[self callJSResponse:self.loadCallbackId, nil];
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}
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} else {
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if (image.scale != self.imageScale) {
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image = [YYImage imageWithCGImage:image.CGImage scale:self.imageScale orientation:image.imageOrientation];
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self.view.image = image;
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}
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if (self.loadCallbackId.length > 0) {
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[self callJSResponse:self.loadCallbackId,
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@{@"width": @(image.size.width), @"height": @(image.size.height)},
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nil];
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}
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if (async) {
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DoricSuperNode *node = self.superNode;
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while (node.superNode != nil) {
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node = node.superNode;
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}
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[node requestLayout];
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}
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}
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}];
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async = YES;
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} else if ([@"scaleType" isEqualToString:name]) {
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switch ([prop integerValue]) {
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case 1: {
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self.view.contentMode = UIViewContentModeScaleAspectFit;
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break;
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}
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case 2: {
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self.view.contentMode = UIViewContentModeScaleAspectFill;
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break;
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}
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default: {
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self.view.contentMode = UIViewContentModeScaleToFill;
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break;
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}
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}
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self.contentMode = self.view.contentMode;
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} else if ([@"loadCallback" isEqualToString:name]) {
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self.loadCallbackId = prop;
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} else if ([@"imageBase64" isEqualToString:name]) {
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NSString *base64 = prop;
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if (YES == [base64 hasPrefix:@"data:image"]) {
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base64 = [base64 componentsSeparatedByString:@","].lastObject;
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}
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NSData *imageData = [[NSData alloc] initWithBase64EncodedString:base64
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options:NSDataBase64DecodingIgnoreUnknownCharacters];
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YYImage *image = [YYImage imageWithData:imageData scale:self.imageScale];
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view.image = image;
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} else if ([@"isBlur" isEqualToString:name]) {
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NSInteger value = [prop intValue];
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if (value == 1) {
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if (!self.blurEffectView) {
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UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
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self.blurEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
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[view addSubview:self.blurEffectView];
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dispatch_async(dispatch_get_main_queue(), ^{
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self.blurEffectView.translatesAutoresizingMaskIntoConstraints = NO;
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NSLayoutConstraint *widthConstraint = [NSLayoutConstraint
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constraintWithItem:self.blurEffectView
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attribute:(NSLayoutAttributeWidth)
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relatedBy:(NSLayoutRelationEqual)
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toItem:view
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attribute:(NSLayoutAttributeWidth)
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multiplier:1
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constant:0];
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NSLayoutConstraint *heightConstraint = [NSLayoutConstraint
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constraintWithItem:self.blurEffectView
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attribute:(NSLayoutAttributeHeight)
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relatedBy:(NSLayoutRelationEqual)
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toItem:view
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attribute:(NSLayoutAttributeHeight)
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multiplier:1
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constant:0];
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[NSLayoutConstraint activateConstraints:@[widthConstraint, heightConstraint,]];
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});
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}
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}
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} else if ([@"imageRes" isEqualToString:name]) {
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YYImage *image = [YYImage imageNamed:prop];
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view.image = image;
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if (self.loadCallbackId.length > 0) {
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if (image) {
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[self callJSResponse:self.loadCallbackId,
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@{@"width": @(image.size.width), @"height": @(image.size.height)},
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nil];
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} else {
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[self callJSResponse:self.loadCallbackId, nil];
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}
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}
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} else if ([@"imagePath" isEqualToString:name]) {
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NSString *path = [[NSBundle mainBundle] bundlePath];
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NSString *fullPath = [path stringByAppendingPathComponent:prop];
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NSData *imgData = [[NSData alloc] initWithContentsOfFile:fullPath];
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YYImage *image = [YYImage imageWithData:imgData scale:self.imageScale];
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view.image = image;
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if (self.loadCallbackId.length > 0) {
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if (image) {
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[self callJSResponse:self.loadCallbackId,
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@{@"width": @(image.size.width), @"height": @(image.size.height)},
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nil];
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} else {
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[self callJSResponse:self.loadCallbackId, nil];
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}
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}
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} else if ([@"stretchInset" isEqualToString:name]) {
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self.stretchInsetDic = (NSDictionary *)prop;
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} else if ([@"imageScale" isEqualToString:name]) {
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//Do not need set
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} else {
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[super blendView:view forPropName:name propValue:prop];
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}
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}
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- (void)afterBlended:(NSDictionary *)props {
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if (self.stretchInsetDic != nil) {
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CGFloat left = [self.stretchInsetDic[@"left"] floatValue];
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CGFloat top = [self.stretchInsetDic[@"top"] floatValue];
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CGFloat right = [self.stretchInsetDic[@"right"] floatValue];
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CGFloat bottom = [self.stretchInsetDic[@"bottom"] floatValue];
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CGFloat scale = self.imageScale;
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UIImage *result = [self.view.image resizableImageWithCapInsets:UIEdgeInsetsMake(top/scale, left/scale, bottom/scale, right/scale) resizingMode:UIImageResizingModeStretch];
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self.view.image = result;
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}
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}
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@end
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