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This commit is contained in:
Ali
2023-06-30 19:48:37 +02:00
parent 1abb7efc75
commit 84dcde0051
55 changed files with 1138 additions and 362 deletions
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54
submodules/SparseItemGrid/Sources/SparseItemGrid.swift
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@@ -23,6 +23,7 @@ public protocol SparseItemGridView: UIView {
public protocol SparseItemGridDisplayItem: AnyObject {
var layer: SparseItemGridLayer? { get }
var view: SparseItemGridView? { get }
var blurLayer: SimpleLayer? { get }
}
public protocol SparseItemGridShimmerLayer: CALayer {
@@ -342,6 +343,7 @@ public final class SparseItemGrid: ASDisplayNode {
let layer: SparseItemGridLayer?
let view: SparseItemGridView?
var shimmerLayer: SparseItemGridShimmerLayer?
var blurLayer: SimpleLayer?
init(layer: SparseItemGridLayer?, view: SparseItemGridView?) {
self.layer = layer
@@ -391,8 +393,9 @@ public final class SparseItemGrid: ASDisplayNode {
let itemSpacing: CGFloat
let lastItemSize: CGFloat
let itemsPerRow: Int
let centerItems: Bool
init(containerLayout: ContainerLayout, zoomLevel: ZoomLevel) {
init(containerLayout: ContainerLayout, zoomLevel: ZoomLevel, itemCount: Int) {
self.containerLayout = containerLayout
let width: CGFloat
if containerLayout.useSideInsets {
@@ -400,15 +403,23 @@ public final class SparseItemGrid: ASDisplayNode {
} else {
width = containerLayout.size.width
}
var centerItems = false
if let fixedItemHeight = containerLayout.fixedItemHeight {
self.itemsPerRow = 1
self.itemSize = CGSize(width: width, height: fixedItemHeight)
self.lastItemSize = width
self.itemSpacing = 0.0
self.centerItems = false
} else {
self.itemSpacing = 1.0
let itemsPerRow = CGFloat(zoomLevel.rawValue)
let itemsPerRow: CGFloat
if containerLayout.fixedItemAspect != nil && itemCount <= 2 {
itemsPerRow = 2.0
centerItems = itemCount == 1
} else {
itemsPerRow = CGFloat(zoomLevel.rawValue)
}
self.itemsPerRow = Int(itemsPerRow)
let itemSize = floorToScreenPixels((width - (self.itemSpacing * CGFloat(self.itemsPerRow - 1))) / itemsPerRow)
if let fixedItemAspect = containerLayout.fixedItemAspect {
@@ -417,16 +428,24 @@ public final class SparseItemGrid: ASDisplayNode {
self.itemSize = CGSize(width: itemSize, height: itemSize)
}
self.lastItemSize = width - (self.itemSize.width + self.itemSpacing) * CGFloat(self.itemsPerRow - 1)
if centerItems {
self.lastItemSize = self.itemSize.width
} else {
self.lastItemSize = width - (self.itemSize.width + self.itemSpacing) * CGFloat(self.itemsPerRow - 1)
}
self.centerItems = centerItems
}
}
func frame(at index: Int) -> CGRect {
let row = index / self.itemsPerRow
let column = index % self.itemsPerRow
return CGRect(origin: CGPoint(x: (self.containerLayout.useSideInsets ? self.containerLayout.insets.left : 0.0) + CGFloat(column) * (self.itemSize.width + self.itemSpacing), y: self.containerLayout.insets.top + CGFloat(row) * (self.itemSize.height + self.itemSpacing)), size: CGSize(width: column == (self.itemsPerRow - 1) ? self.lastItemSize : itemSize.width, height: itemSize.height))
var frame = CGRect(origin: CGPoint(x: (self.containerLayout.useSideInsets ? self.containerLayout.insets.left : 0.0) + CGFloat(column) * (self.itemSize.width + self.itemSpacing), y: self.containerLayout.insets.top + CGFloat(row) * (self.itemSize.height + self.itemSpacing)), size: CGSize(width: column == (self.itemsPerRow - 1) ? self.lastItemSize : itemSize.width, height: itemSize.height))
if self.centerItems {
frame.origin.x = floor((self.containerLayout.size.width - frame.width) * 0.5)
}
return frame
}
func contentHeight(count: Int) -> CGFloat {
@@ -514,7 +533,7 @@ public final class SparseItemGrid: ASDisplayNode {
func update(containerLayout: ContainerLayout, items: Items, restoreScrollPosition: (y: CGFloat, index: Int)?, synchronous: SparseItemGrid.Synchronous) {
if self.layout?.containerLayout != containerLayout || self.items !== items {
self.layout = Layout(containerLayout: containerLayout, zoomLevel: self.zoomLevel)
self.layout = Layout(containerLayout: containerLayout, zoomLevel: self.zoomLevel, itemCount: items.count)
self.items = items
self.updateVisibleItems(resetScrolling: true, synchronous: synchronous, restoreScrollPosition: restoreScrollPosition)
@@ -949,6 +968,8 @@ public final class SparseItemGrid: ASDisplayNode {
var bindItems: [Item] = []
var bindLayers: [SparseItemGridDisplayItem] = []
var updateLayers: [SparseItemGridDisplayItem] = []
let addBlur = layout.centerItems
let visibleRange = layout.visibleItemRange(for: visibleBounds, count: items.count)
if visibleRange.maxIndex >= visibleRange.minIndex {
@@ -974,6 +995,22 @@ public final class SparseItemGrid: ASDisplayNode {
}
}
if addBlur {
let blurLayer: SimpleLayer
if let current = itemLayer.blurLayer {
blurLayer = current
} else {
blurLayer = SimpleLayer()
blurLayer.masksToBounds = true
blurLayer.zPosition = -1.0
self.scrollView.layer.addSublayer(blurLayer)
itemLayer.blurLayer = blurLayer
}
} else if let blurLayer = itemLayer.blurLayer {
itemLayer.blurLayer = nil
blurLayer.removeFromSuperlayer()
}
if itemLayer.needsShimmer {
let placeholderLayer: SparseItemGridShimmerLayer
if let current = itemLayer.shimmerLayer {
@@ -995,6 +1032,9 @@ public final class SparseItemGrid: ASDisplayNode {
validIds.insert(item.id)
itemLayer.frame = itemFrame
if let blurLayer = itemLayer.blurLayer {
blurLayer.frame = CGRect(origin: CGPoint(x: 0.0, y: itemFrame.minY), size: CGSize(width: layout.containerLayout.size.width, height: itemFrame.height))
}
} else {
let placeholderLayer: SparseItemGridShimmerLayer
if self.visiblePlaceholders.count > usedPlaceholderCount {
@@ -1022,7 +1062,7 @@ public final class SparseItemGrid: ASDisplayNode {
if let layer = item.layer {
layer.update(size: layer.frame.size)
} else if let view = item.view {
view.update(size: layer.frame.size, insets: layout.containerLayout.insets)
view.update(size: view.layer.frame.size, insets: layout.containerLayout.insets)
}
}