/* * 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. */ // // DoricScrollerNode.m // Doric // // Created by pengfei.zhou on 2019/11/19. // #import "DoricScrollerNode.h" #import "DoricExtensions.h" #import "DoricRefreshableNode.h" #import "DoricPromise.h" @implementation DoricScrollView - (void)setContentView:(UIView *)contentView { if (_contentView) { [_contentView removeFromSuperview]; } _contentView = contentView; [self addSubview:contentView]; } - (CGSize)sizeThatFits:(CGSize)size { if (self.contentView) { return [self.contentView measureSize:size]; } return CGSizeZero; } - (void)layoutSelf:(CGSize)targetSize { [super layoutSelf:targetSize]; [self setContentSize:self.contentView.frame.size]; } @end @interface DoricScrollerNode () @property(nonatomic, strong) DoricViewNode *childNode; @property(nonatomic, copy) NSString *childViewId; @property(nonatomic, copy) NSString *onScrollFuncId; @property(nonatomic, copy) NSString *onScrollEndFuncId; @property(nonatomic, strong) NSMutableSet *didScrollBlocks; @end @implementation DoricScrollerNode - (DoricScrollView *)build { return [[DoricScrollView new] also:^(DoricScrollView *it) { it.delegate = self; it.showsHorizontalScrollIndicator = NO; it.showsVerticalScrollIndicator = NO; if (@available(iOS 11, *)) { it.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever; } }]; } - (void)initWithSuperNode:(DoricSuperNode *)superNode { [super initWithSuperNode:superNode]; if ([superNode isKindOfClass:[DoricRefreshableNode class]]) { self.view.bounces = NO; } } - (void)blend:(NSDictionary *)props { [super blend:props]; NSDictionary *childModel = [self subModelOf:self.childViewId]; if (!childModel) { return; } NSString *viewId = childModel[@"id"]; NSString *type = childModel[@"type"]; NSDictionary *childProps = childModel[@"props"]; if (self.childNode) { if ([self.childNode.viewId isEqualToString:viewId]) { //skip } else { if (self.reusable && [type isEqualToString:self.childNode.type]) { [self.childNode also:^(DoricViewNode *it) { it.viewId = viewId; [it blend:childProps]; }]; } else { self.childNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) { it.viewId = viewId; [it initWithSuperNode:self]; [it blend:childProps]; self.view.contentView = it.view; }]; } } } else { self.childNode = [[DoricViewNode create:self.doricContext withType:type] also:^(DoricViewNode *it) { it.viewId = viewId; [it initWithSuperNode:self]; [it blend:childProps]; self.view.contentView = it.view; }]; } if (props[@"contentOffset"]) { NSDictionary *prop = props[@"contentOffset"]; self.view.contentOffset = CGPointMake([prop[@"x"] floatValue], [prop[@"y"] floatValue]); } } - (void)blendView:(DoricScrollView *)view forPropName:(NSString *)name propValue:(id)prop { if ([@"content" isEqualToString:name]) { self.childViewId = prop; } else if ([@"onScroll" isEqualToString:name]) { self.onScrollFuncId = prop; } else if ([@"onScrollEnd" isEqualToString:name]) { self.onScrollEndFuncId = prop; } else { [super blendView:view forPropName:name propValue:prop]; } } - (void)blendSubNode:(NSDictionary *)subModel { [self.childNode blend:subModel[@"props"]]; } - (DoricViewNode *)subNodeWithViewId:(NSString *)viewId { if ([viewId isEqualToString:self.childViewId]) { return self.childNode; } return nil; } - (void)scrollViewDidScroll:(UIScrollView *)scrollView { for (DoricDidScrollBlock block in self.didScrollBlocks) { block(scrollView); } if (self.onScrollFuncId) { [self callJSResponse:self.onScrollFuncId, @{ @"x": @(self.view.contentOffset.x), @"y": @(self.view.contentOffset.y), }, nil]; } } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { if (self.onScrollEndFuncId) { [self callJSResponse:self.onScrollEndFuncId, @{ @"x": @(self.view.contentOffset.x), @"y": @(self.view.contentOffset.y), }, nil]; } } - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { if (!decelerate) { if (self.onScrollEndFuncId) { [self callJSResponse:self.onScrollEndFuncId, @{ @"x": @(self.view.contentOffset.x), @"y": @(self.view.contentOffset.y), }, nil]; } } } - (void)scrollTo:(NSDictionary *)params { BOOL animated = [params[@"animated"] boolValue]; NSDictionary *offsetDic = params[@"offset"]; CGPoint offset = CGPointMake([offsetDic[@"x"] floatValue], [offsetDic[@"y"] floatValue]); [self.view setContentOffset:offset animated:animated]; } - (void)scrollBy:(NSDictionary *)params { BOOL animated = [params[@"animated"] boolValue]; NSDictionary *offsetDic = params[@"offset"]; CGPoint offset = CGPointMake([offsetDic[@"x"] floatValue], [offsetDic[@"y"] floatValue]); [self.view setContentOffset:CGPointMake( MIN(self.view.contentSize.width - self.view.width, MAX(0, offset.x + self.view.contentOffset.x)), MIN(self.view.contentSize.height - self.view.height, MAX(0, offset.y + self.view.contentOffset.y))) animated:animated]; } - (NSMutableSet *)didScrollBlocks { if (!_didScrollBlocks) { _didScrollBlocks = [NSMutableSet new]; } return _didScrollBlocks; } - (void)addDidScrollBlock:(__nonnull DoricDidScrollBlock)didScrollListener { [self.didScrollBlocks addObject:didScrollListener]; } - (void)removeDidScrollBlock:(__nonnull DoricDidScrollBlock)didScrollListener { [self.didScrollBlocks removeObject:didScrollListener]; } @end