/*
* Copyright [2019] [Doric.Pub]
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file 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.
*/
//
// DoricImageNode.m
// Doric
//
// Created by pengfei.zhou on 2019/8/6.
//
#import "DoricImageNode.h"
#import "YYWebImage.h"
#import "DoricExtensions.h"
#import "DoricUtil.h"
#import "DoricSuperNode.h"
@interface DoricImageView : YYAnimatedImageView
@end
@implementation DoricImageView
@end
@interface DoricImageNode ()
@property(nonatomic, copy) NSString *loadCallbackId;
@property(nonatomic, assign) UIViewContentMode contentMode;
@property(nonatomic, strong) NSNumber *placeHolderColor;
@property(nonatomic, strong) NSString *placeHolderImage;
@property(nonatomic, strong) NSNumber *errorColor;
@property(nonatomic, strong) NSString *errorImage;
@property(nonatomic, strong) UIVisualEffectView *blurEffectView;
@property(nonatomic, strong) NSDictionary *stretchInsetDic;
@property(nonatomic, assign) CGFloat imageScale;
@end
@implementation DoricImageNode
- (UIImageView *)build {
self.imageScale = UIScreen.mainScreen.scale;
return [[DoricImageView new] also:^(UIImageView *it) {
it.clipsToBounds = YES;
it.contentMode = UIViewContentModeScaleAspectFill;
}];
}
- (void)blend:(NSDictionary *)props {
[props[@"placeHolderColor"] also:^(id it) {
self.placeHolderColor = it;
}];
[props[@"placeHolderImage"] also:^(id it) {
self.placeHolderImage = it;
}];
[props[@"errorColor"] also:^(id it) {
self.errorColor = it;
}];
[props[@"errorImage"] also:^(id it) {
self.errorImage = it;
}];
[props[@"imageScale"] also:^(NSNumber *it) {
self.imageScale = it.floatValue;
}];
[super blend:props];
}
- (UIImage *)currentPlaceHolderImage {
if (self.placeHolderImage) {
return [UIImage imageNamed:self.placeHolderImage];
}
if (self.placeHolderColor) {
UIColor *color = DoricColor(self.placeHolderColor);
CGRect rect = CGRectMake(0, 0, 1, 1);
self.view.contentMode = UIViewContentModeScaleToFill;
UIGraphicsBeginImageContextWithOptions(rect.size, NO, [UIScreen mainScreen].scale);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, color.CGColor);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
return self.doricContext.driver.registry.defaultPlaceHolderImage;
}
- (UIImage *)currentErrorImage {
if (self.errorImage) {
return [UIImage imageNamed:self.errorImage];
}
if (self.errorColor) {
UIColor *color = DoricColor(self.errorColor);
CGRect rect = CGRectMake(0, 0, 1, 1);
self.view.contentMode = UIViewContentModeScaleToFill;
UIGraphicsBeginImageContextWithOptions(rect.size, NO, [UIScreen mainScreen].scale);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, color.CGColor);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
return self.doricContext.driver.registry.defaultErrorImage;
}
- (void)blendView:(UIImageView *)view forPropName:(NSString *)name propValue:(id)prop {
if ([@"imageUrl" isEqualToString:name]) {
__weak typeof(self) _self = self;
__block BOOL async = NO;
view.doricLayout.undefined = YES;
[view yy_setImageWithURL:[NSURL URLWithString:prop] placeholder:[self currentPlaceHolderImage] options:0 completion:^(UIImage *image, NSURL *url, YYWebImageFromType from, YYWebImageStage stage, NSError *error) {
__strong typeof(_self) self = _self;
if (self.placeHolderColor || self.errorColor) {
self.view.contentMode = self.contentMode;
}
view.doricLayout.undefined = NO;
if (error) {
[[self currentErrorImage] also:^(UIImage *it) {
self.view.image = it;
}];
if (self.loadCallbackId.length > 0) {
[self callJSResponse:self.loadCallbackId, nil];
}
} else {
if (image.scale != self.imageScale) {
image = [YYImage imageWithCGImage:image.CGImage scale:self.imageScale orientation:image.imageOrientation];
self.view.image = image;
}
if (self.loadCallbackId.length > 0) {
[self callJSResponse:self.loadCallbackId,
@{@"width": @(image.size.width), @"height": @(image.size.height)},
nil];
}
if (async) {
DoricSuperNode *node = self.superNode;
while (node.superNode != nil) {
node = node.superNode;
}
[node requestLayout];
}
}
}];
async = YES;
} else if ([@"scaleType" isEqualToString:name]) {
switch ([prop integerValue]) {
case 1: {
self.view.contentMode = UIViewContentModeScaleAspectFit;
break;
}
case 2: {
self.view.contentMode = UIViewContentModeScaleAspectFill;
break;
}
default: {
self.view.contentMode = UIViewContentModeScaleToFill;
break;
}
}
self.contentMode = self.view.contentMode;
} else if ([@"loadCallback" isEqualToString:name]) {
self.loadCallbackId = prop;
} else if ([@"imageBase64" isEqualToString:name]) {
NSString *base64 = prop;
if (YES == [base64 hasPrefix:@"data:image"]) {
base64 = [base64 componentsSeparatedByString:@","].lastObject;
}
NSData *imageData = [[NSData alloc] initWithBase64EncodedString:base64
options:NSDataBase64DecodingIgnoreUnknownCharacters];
YYImage *image = [YYImage imageWithData:imageData scale:self.imageScale];
view.image = image;
} else if ([@"isBlur" isEqualToString:name]) {
NSInteger value = [prop intValue];
if (value == 1) {
if (!self.blurEffectView) {
UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
self.blurEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
[view addSubview:self.blurEffectView];
dispatch_async(dispatch_get_main_queue(), ^{
self.blurEffectView.translatesAutoresizingMaskIntoConstraints = NO;
NSLayoutConstraint *widthConstraint = [NSLayoutConstraint
constraintWithItem:self.blurEffectView
attribute:(NSLayoutAttributeWidth)
relatedBy:(NSLayoutRelationEqual)
toItem:view
attribute:(NSLayoutAttributeWidth)
multiplier:1
constant:0];
NSLayoutConstraint *heightConstraint = [NSLayoutConstraint
constraintWithItem:self.blurEffectView
attribute:(NSLayoutAttributeHeight)
relatedBy:(NSLayoutRelationEqual)
toItem:view
attribute:(NSLayoutAttributeHeight)
multiplier:1
constant:0];
[NSLayoutConstraint activateConstraints:@[widthConstraint, heightConstraint,]];
});
}
}
} else if ([@"imageRes" isEqualToString:name]) {
YYImage *image = [YYImage imageNamed:prop];
view.image = image;
if (self.loadCallbackId.length > 0) {
if (image) {
[self callJSResponse:self.loadCallbackId,
@{@"width": @(image.size.width), @"height": @(image.size.height)},
nil];
} else {
[self callJSResponse:self.loadCallbackId, nil];
}
}
} else if ([@"imagePath" isEqualToString:name]) {
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *fullPath = [path stringByAppendingPathComponent:prop];
NSData *imgData = [[NSData alloc] initWithContentsOfFile:fullPath];
YYImage *image = [YYImage imageWithData:imgData scale:self.imageScale];
view.image = image;
if (self.loadCallbackId.length > 0) {
if (image) {
[self callJSResponse:self.loadCallbackId,
@{@"width": @(image.size.width), @"height": @(image.size.height)},
nil];
} else {
[self callJSResponse:self.loadCallbackId, nil];
}
}
} else if ([@"stretchInset" isEqualToString:name]) {
self.stretchInsetDic = (NSDictionary *)prop;
} else if ([@"imageScale" isEqualToString:name]) {
//Do not need set
} else {
[super blendView:view forPropName:name propValue:prop];
}
}
- (void)afterBlended:(NSDictionary *)props {
if (self.stretchInsetDic != nil) {
CGFloat left = [self.stretchInsetDic[@"left"] floatValue];
CGFloat top = [self.stretchInsetDic[@"top"] floatValue];
CGFloat right = [self.stretchInsetDic[@"right"] floatValue];
CGFloat bottom = [self.stretchInsetDic[@"bottom"] floatValue];
CGFloat scale = self.imageScale;
UIImage *result = [self.view.image resizableImageWithCapInsets:UIEdgeInsetsMake(top/scale, left/scale, bottom/scale, right/scale) resizingMode:UIImageResizingModeStretch];
self.view.image = result;
}
}
@end