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78 lines
3.0 KiB
Objective-C
78 lines
3.0 KiB
Objective-C
/*!
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* iOS SDK
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*
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* Tencent is pleased to support the open source community by making
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* Hippy available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company.
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* All rights reserved.
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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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#import <UIKit/UIScrollView.h>
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#import "HippyAutoInsetsProtocol.h"
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#import "HippyEventDispatcher.h"
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#import "HippyScrollableProtocol.h"
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#import "HippyView.h"
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@protocol UIScrollViewDelegate;
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@interface HippyScrollView : HippyView <UIScrollViewDelegate, HippyScrollableProtocol, HippyAutoInsetsProtocol, HippyInvalidating>
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- (instancetype)initWithEventDispatcher:(HippyEventDispatcher *)eventDispatcher NS_DESIGNATED_INITIALIZER;
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/**
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* The `HippyScrollView` may have at most one single subview. This will ensure
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* that the scroll view's `contentSize` will be efficiently set to the size of
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* the single subview's frame. That frame size will be determined somewhat
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* efficiently since it will have already been computed by the off-main-thread
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* layout system.
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*/
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@property (nonatomic, readonly) UIView *contentView;
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/**
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* If the `contentSize` is not specified (or is specified as {0, 0}, then the
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* `contentSize` will automatically be determined by the size of the subview.
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*/
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@property (nonatomic, assign) CGSize contentSize;
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/**
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* The underlying scrollView (TODO: can we remove this?)
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*/
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@property (nonatomic, readonly) UIScrollView *scrollView;
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@property (nonatomic, assign) UIEdgeInsets contentInset;
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@property (nonatomic, assign) BOOL automaticallyAdjustContentInsets;
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@property (nonatomic, assign) NSTimeInterval scrollEventThrottle;
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@property (nonatomic, assign) BOOL centerContent;
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@property (nonatomic, assign) int snapToInterval;
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@property (nonatomic, copy) NSString *snapToAlignment;
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@property (nonatomic, copy) NSIndexSet *stickyHeaderIndices;
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@property (nonatomic, assign) BOOL horizontal;
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// NOTE: currently these event props are only declared so we can export the
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// event names to JS - we don't call the blocks directly because scroll events
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// need to be coalesced before sending, for performance reasons.
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@property (nonatomic, copy) HippyDirectEventBlock onScrollBeginDrag;
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@property (nonatomic, copy) HippyDirectEventBlock onScroll;
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@property (nonatomic, copy) HippyDirectEventBlock onScrollEndDrag;
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@property (nonatomic, copy) HippyDirectEventBlock onMomentumScrollBegin;
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@property (nonatomic, copy) HippyDirectEventBlock onMomentumScrollEnd;
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@property (nonatomic, copy) HippyDirectEventBlock onScrollAnimationEnd;
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@property (nonatomic, assign) CGPoint targetOffset;
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@end
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