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Various Improvements

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This commit is contained in:
Ilya Laktyushin
2021-08-13 17:50:32 +03:00
parent 6f5c99d208
commit dfc224aab0
18 changed files with 235 additions and 44 deletions
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23
submodules/Display/Source/ListView.swift
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@@ -327,6 +327,7 @@ open class ListView: ASDisplayNode, UIScrollViewAccessibilityDelegate, UIGesture
private var reorderFeedbackDisposable: MetaDisposable?
private var reorderInProgress: Bool = false
private var reorderingItemsCompleted: (() -> Void)?
private var reorderScrollStartTimestamp: Double?
public var reorderedItemHasShadow = true
private let waitingForNodesDisposable = MetaDisposable()
@@ -3974,20 +3975,38 @@ open class ListView: ASDisplayNode, UIScrollViewAccessibilityDelegate, UIGesture
var offsetRanges = OffsetRanges()
var scrollingForReorder = false
if let reorderOffset = self.reorderNode?.currentOffset(), !self.itemNodes.isEmpty {
let effectiveInsets = self.visualInsets ?? self.insets
var offset: CGFloat = 6.0
if let reorderScrollStartTimestamp = self.reorderScrollStartTimestamp, reorderScrollStartTimestamp + 2.0 < timestamp {
offset *= 2.0
}
if reorderOffset < effectiveInsets.top + 10.0 {
if self.itemNodes[0].apparentFrame.minY < effectiveInsets.top {
continueAnimations = true
offsetRanges.offset(IndexRange(first: 0, last: Int.max), offset: 6.0)
offsetRanges.offset(IndexRange(first: 0, last: Int.max), offset: offset)
scrollingForReorder = true
}
} else if reorderOffset > self.visibleSize.height - effectiveInsets.bottom - 10.0 {
if self.itemNodes[self.itemNodes.count - 1].apparentFrame.maxY > self.visibleSize.height - effectiveInsets.bottom {
continueAnimations = true
offsetRanges.offset(IndexRange(first: 0, last: Int.max), offset: -6.0)
if self.reorderScrollStartTimestamp == nil {
self.reorderScrollStartTimestamp = timestamp
}
offsetRanges.offset(IndexRange(first: 0, last: Int.max), offset: -offset)
scrollingForReorder = true
}
}
}
if scrollingForReorder {
if self.reorderScrollStartTimestamp == nil {
self.reorderScrollStartTimestamp = timestamp
}
} else {
self.reorderScrollStartTimestamp = nil
}
var requestUpdateVisibleItems = false
var index = 0