105 lines
3.5 KiB
Objective-C
105 lines
3.5 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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// Created by pengfei.zhou on 2019/12/7.
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//
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#import "DoricNestedSliderNode.h"
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#import "Doric.h"
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@interface DoricNestedSliderView : UIScrollView
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@end
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@implementation DoricNestedSliderView
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- (CGSize)sizeThatFits:(CGSize)size {
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if (self.subviews.count > 0) {
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CGFloat width = size.width;
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CGFloat height = size.height;
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for (UIView *child in self.subviews) {
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CGSize childSize = [child measureSize:size];
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width = MAX(childSize.width, width);
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height = MAX(childSize.height, height);
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}
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return CGSizeMake(width, height);
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}
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return size;
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}
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- (void)layoutSelf:(CGSize)targetSize {
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[super layoutSelf:targetSize];
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[self.subviews forEachIndexed:^(__kindof UIView *obj, NSUInteger idx) {
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obj.left = idx * self.width;
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}];
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[self setContentSize:CGSizeMake(self.subviews.count * self.width, self.height)];
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}
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@end
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@interface DoricNestedSliderNode () <UIScrollViewDelegate>
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@property(nonatomic, copy) NSString *onPageSelectedFuncId;
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@property(nonatomic, assign) NSUInteger lastPosition;
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@end
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@implementation DoricNestedSliderNode
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- (UIScrollView *)build {
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return [[DoricNestedSliderView new] also:^(DoricNestedSliderView *it) {
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it.delegate = self;
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it.pagingEnabled = YES;
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[it setShowsVerticalScrollIndicator:NO];
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[it setShowsHorizontalScrollIndicator:NO];
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if (@available(iOS 11, *)) {
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it.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
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}
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}];
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}
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- (void)blendView:(UIScrollView *)view forPropName:(NSString *)name propValue:(id)prop {
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if ([@"onPageSlided" isEqualToString:name]) {
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self.onPageSelectedFuncId = prop;
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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)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
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NSUInteger pageIndex = (NSUInteger) (scrollView.contentOffset.x / scrollView.width);
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[scrollView setContentOffset:CGPointMake(pageIndex * scrollView.width, scrollView.contentOffset.y) animated:YES];
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if (self.onPageSelectedFuncId && self.onPageSelectedFuncId.length > 0) {
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if (pageIndex != self.lastPosition) {
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[self callJSResponse:self.onPageSelectedFuncId, @(pageIndex), nil];
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}
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}
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self.lastPosition = pageIndex;
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}
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- (void)slidePage:(NSDictionary *)params withPromise:(DoricPromise *)promise {
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NSUInteger pageIndex = [params[@"page"] unsignedIntegerValue];
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BOOL smooth = [params[@"smooth"] boolValue];
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[self.view setContentOffset:CGPointMake(pageIndex * self.view.width, self.view.contentOffset.y) animated:smooth];
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[promise resolve:nil];
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self.lastPosition = pageIndex;
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if (self.onPageSelectedFuncId && self.onPageSelectedFuncId.length > 0) {
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[self callJSResponse:self.onPageSelectedFuncId, @(pageIndex), nil];
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}
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}
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- (NSNumber *)getSlidedPage {
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NSUInteger pageIndex = (NSUInteger) (self.view.contentOffset.x / self.view.width);
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return @(pageIndex);
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}
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@end
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