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Ali
2021-04-09 14:07:34 +04:00
parent 0b9c938e92
commit dc014dead1
7 changed files with 132 additions and 19 deletions
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18
submodules/Display/Source/ListView.swift
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@@ -4024,13 +4024,21 @@ open class ListView: ASDisplayNode, UIScrollViewAccessibilityDelegate, UIGesture
}
}
public func ensureItemNodeVisible(_ node: ListViewItemNode, animated: Bool = true, overflow: CGFloat = 0.0, allowIntersection: Bool = false, curve: ListViewAnimationCurve = .Default(duration: 0.25)) {
public func ensureItemNodeVisible(_ node: ListViewItemNode, animated: Bool = true, overflow: CGFloat = 0.0, allowIntersection: Bool = false, atTop: Bool = false, curve: ListViewAnimationCurve = .Default(duration: 0.25)) {
if let index = node.index {
if node.apparentHeight > self.visibleSize.height - self.insets.top - self.insets.bottom {
if node.frame.maxY > self.visibleSize.height - self.insets.bottom {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.bottom(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Down), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
} else if node.frame.minY < self.insets.top && overflow > 0.0 {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.top(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Up), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
if atTop {
if node.frame.maxY > self.visibleSize.height - self.insets.bottom {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.top(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Down), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
} else if node.frame.minY < self.insets.top && overflow > 0.0 {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.top(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Up), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
}
} else {
if node.frame.maxY > self.visibleSize.height - self.insets.bottom {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.bottom(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Down), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
} else if node.frame.minY < self.insets.top && overflow > 0.0 {
self.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: ListViewDeleteAndInsertOptions(), scrollToItem: ListViewScrollToItem(index: index, position: ListViewScrollPosition.top(-overflow), animated: animated, curve: curve, directionHint: ListViewScrollToItemDirectionHint.Up), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
}
}
} else {
if self.experimentalSnapScrollToItem {