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This commit is contained in:
Ilya Laktyushin
2020-09-05 05:37:15 +03:00
parent 91b8eb47d5
commit 0041761cbb
116 changed files with 8857 additions and 5141 deletions
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262
submodules/SearchBarNode/Sources/SearchBarNode.swift
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@@ -26,6 +26,90 @@ private func generateBackground(foregroundColor: UIColor, diameter: CGFloat) ->
}, opaque: false)?.stretchableImage(withLeftCapWidth: Int(diameter / 2.0), topCapHeight: Int(diameter / 2.0))
}
public struct SearchBarToken {
public let id: AnyHashable
public let icon: UIImage?
public let title: String
public init(id: AnyHashable, icon: UIImage?, title: String) {
self.id = id
self.icon = icon
self.title = title
}
}
private final class TokenNode: ASDisplayNode {
var theme: SearchBarNodeTheme
let token: SearchBarToken
let iconNode: ASImageNode
let titleNode: ASTextNode
let backgroundNode: ASImageNode
var isSelected: Bool = false
var isCollapsed: Bool = false
init(theme: SearchBarNodeTheme, token: SearchBarToken) {
self.theme = theme
self.token = token
self.iconNode = ASImageNode()
self.iconNode.displaysAsynchronously = false
self.iconNode.displayWithoutProcessing = true
self.titleNode = ASTextNode()
self.titleNode.isUserInteractionEnabled = false
self.titleNode.displaysAsynchronously = false
self.titleNode.maximumNumberOfLines = 1
self.backgroundNode = ASImageNode()
self.backgroundNode.displaysAsynchronously = false
self.backgroundNode.displayWithoutProcessing = true
self.backgroundNode.image = generateStretchableFilledCircleImage(diameter: 8.0, color: theme.inputIcon)
super.init()
self.clipsToBounds = true
self.addSubnode(self.backgroundNode)
self.iconNode.image = generateTintedImage(image: token.icon, color: .white)
self.addSubnode(self.iconNode)
self.titleNode.attributedText = NSAttributedString(string: token.title, font: Font.regular(17.0), textColor: .white)
self.addSubnode(self.titleNode)
}
func update(theme: SearchBarNodeTheme, token: SearchBarToken, isSelected: Bool, isCollapsed: Bool) {
self.isSelected = isSelected
self.isCollapsed = isCollapsed
if theme !== self.theme {
self.backgroundNode.image = generateStretchableFilledCircleImage(diameter: 8.0, color: isSelected ? self.theme.accent : self.theme.inputIcon)
}
}
func updateLayout(constrainedSize: CGSize, transition: ContainedViewLayoutTransition) -> CGSize {
let height: CGFloat = 24.0
var leftInset: CGFloat = 3.0
if let icon = self.iconNode.image {
leftInset += 1.0
transition.updateFrame(node: self.iconNode, frame: CGRect(origin: CGPoint(x: leftInset, y: floor((height - icon.size.height) / 2.0)), size: icon.size))
leftInset += icon.size.width + 3.0
}
let iconSize = self.token.icon?.size ?? CGSize()
let titleSize = self.titleNode.measure(CGSize(width: constrainedSize.width - 6.0, height: constrainedSize.height))
var width = titleSize.width + 6.0
if !iconSize.width.isZero {
width += iconSize.width + 7.0
}
let size = CGSize(width: self.isCollapsed ? height : width, height: height)
transition.updateFrame(node: self.backgroundNode, frame: CGRect(origin: CGPoint(), size: size))
transition.updateFrame(node: self.titleNode, frame: CGRect(origin: CGPoint(x: leftInset, y: floor((height - titleSize.height) / 2.0)), size: titleSize))
return size
}
}
private class SearchBarTextField: UITextField {
public var didDeleteBackwardWhileEmpty: (() -> Void)?
@@ -37,6 +121,124 @@ private class SearchBarTextField: UITextField {
}
}
var tokenNodes: [AnyHashable: TokenNode] = [:]
var tokens: [SearchBarToken] = [] {
didSet {
self.layoutTokens(transition: .animated(duration: 0.2, curve: .easeInOut))
self.setNeedsLayout()
}
}
var theme: SearchBarNodeTheme
private func layoutTokens(transition: ContainedViewLayoutTransition = .immediate) {
for i in 0 ..< self.tokens.count {
let token = self.tokens[i]
let tokenNode: TokenNode
var tokenNodeTransition = transition
if let current = self.tokenNodes[token.id] {
tokenNode = current
} else {
tokenNodeTransition = .immediate
tokenNode = TokenNode(theme: self.theme, token: token)
self.tokenNodes[token.id] = tokenNode
}
tokenNode.update(theme: self.theme, token: token, isSelected: false, isCollapsed: i < self.tokens.count - 1)
}
var removeKeys: [AnyHashable] = []
for (id, _) in self.tokenNodes {
if !self.tokens.contains(where: { $0.id == id }) {
removeKeys.append(id)
}
}
for id in removeKeys {
if let itemNode = self.tokenNodes.removeValue(forKey: id) {
transition.updateAlpha(node: itemNode, alpha: 0.0, completion: { [weak itemNode] _ in
itemNode?.removeFromSupernode()
})
transition.updateTransformScale(node: itemNode, scale: 0.1)
}
}
var tokenSizes: [(AnyHashable, CGSize, TokenNode, Bool)] = []
var totalRawTabSize: CGFloat = 0.0
for token in self.tokens {
guard let tokenNode = self.tokenNodes[token.id] else {
continue
}
let wasAdded = tokenNode.view.superview == nil
var tokenNodeTransition = transition
if wasAdded {
tokenNodeTransition = .immediate
self.addSubnode(tokenNode)
}
let nodeSize = tokenNode.updateLayout(constrainedSize: self.bounds.size, transition: tokenNodeTransition)
tokenSizes.append((token.id, nodeSize, tokenNode, wasAdded))
totalRawTabSize += nodeSize.width
}
let minSpacing: CGFloat = 6.0
let resolvedSideInset: CGFloat = 10.0
var leftOffset: CGFloat = 0.0
if !tokenSizes.isEmpty {
leftOffset += resolvedSideInset
}
var longTitlesWidth: CGFloat = resolvedSideInset
for i in 0 ..< tokenSizes.count {
let (_, paneNodeSize, _, _) = tokenSizes[i]
longTitlesWidth += paneNodeSize.width
if i != tokenSizes.count - 1 {
longTitlesWidth += minSpacing
}
}
longTitlesWidth += resolvedSideInset
let verticalOffset: CGFloat = 0.0
var horizontalOffset: CGFloat = 0.0
for i in 0 ..< tokenSizes.count {
let (_, nodeSize, tokenNode, wasAdded) = tokenSizes[i]
let tokenNodeTransition = transition
let nodeFrame = CGRect(origin: CGPoint(x: leftOffset, y: floor((self.frame.height - nodeSize.height) / 2.0) + verticalOffset), size: nodeSize)
if wasAdded {
if horizontalOffset > 0.0 {
tokenNode.frame = nodeFrame.offsetBy(dx: horizontalOffset, dy: 0.0)
tokenNodeTransition.updatePosition(node: tokenNode, position: nodeFrame.center)
} else {
tokenNode.frame = nodeFrame
}
tokenNode.alpha = 0.0
tokenNodeTransition.updateAlpha(node: tokenNode, alpha: 1.0)
tokenNode.subnodeTransform = CATransform3DMakeScale(0.1, 0.1, 1.0)
tokenNodeTransition.updateSublayerTransformScale(node: tokenNode, scale: 1.0)
} else {
if nodeFrame.width < tokenNode.frame.width {
horizontalOffset += tokenNode.frame.width - nodeFrame.width
}
tokenNodeTransition.updateFrame(node: tokenNode, frame: nodeFrame)
}
tokenNode.hitTestSlop = UIEdgeInsets(top: 0.0, left: -minSpacing / 2.0, bottom: 0.0, right: -minSpacing / 2.0)
leftOffset += nodeSize.width + minSpacing
}
if !tokenSizes.isEmpty {
leftOffset -= 4.0
}
self.tokensWidth = leftOffset
}
private var tokensWidth: CGFloat = 0.0
private let measurePrefixLabel: ImmediateTextNode
let prefixLabel: ImmediateTextNode
var prefixString: NSAttributedString? {
@@ -47,7 +249,9 @@ private class SearchBarTextField: UITextField {
}
}
override init(frame: CGRect) {
init(theme: SearchBarNodeTheme) {
self.theme = theme
self.placeholderLabel = ImmediateTextNode()
self.placeholderLabel.isUserInteractionEnabled = false
self.placeholderLabel.displaysAsynchronously = false
@@ -66,7 +270,7 @@ private class SearchBarTextField: UITextField {
self.prefixLabel.maximumNumberOfLines = 1
self.prefixLabel.truncationMode = .byTruncatingTail
super.init(frame: frame)
super.init(frame: CGRect())
self.addSubnode(self.placeholderLabel)
self.addSubnode(self.prefixLabel)
@@ -97,6 +301,7 @@ private class SearchBarTextField: UITextField {
return CGRect(origin: CGPoint(), size: CGSize())
}
var rect = bounds.insetBy(dx: 4.0, dy: 4.0)
rect.origin.y += 1.0
let prefixSize = self.measurePrefixLabel.updateLayout(CGSize(width: floor(bounds.size.width * 0.7), height: bounds.size.height))
if !prefixSize.width.isZero {
@@ -104,6 +309,10 @@ private class SearchBarTextField: UITextField {
rect.origin.x += prefixOffset
rect.size.width -= prefixOffset
}
if !self.tokensWidth.isZero {
rect.origin.x += self.tokensWidth
rect.size.width -= self.tokensWidth
}
rect.size.width = max(rect.size.width, 10.0)
return rect
}
@@ -255,6 +464,9 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
public var textUpdated: ((String, String?) -> Void)?
public var textReturned: ((String) -> Void)?
public var clearPrefix: (() -> Void)?
public var clearTokens: (() -> Void)?
public var tokensUpdated: (([SearchBarToken]) -> Void)?
private let backgroundNode: ASDisplayNode
private let separatorNode: ASDisplayNode
@@ -273,6 +485,16 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
}
}
public var tokens: [SearchBarToken] {
get {
return self.textField.tokens
} set {
let oldValue = self.textField.tokens
self.textField.tokens = newValue
self.updateIsEmpty(animated: newValue.isEmpty && !oldValue.isEmpty)
}
}
public var prefixString: NSAttributedString? {
get {
return self.textField.prefixString
@@ -362,7 +584,7 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
self.iconNode.displaysAsynchronously = false
self.iconNode.displayWithoutProcessing = true
self.textField = SearchBarTextField()
self.textField = SearchBarTextField(theme: theme)
self.textField.accessibilityTraits = .searchField
self.textField.autocorrectionType = .no
self.textField.returnKeyType = .search
@@ -393,7 +615,15 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
self.textField.addTarget(self, action: #selector(self.textFieldDidChange(_:)), for: .editingChanged)
self.textField.didDeleteBackwardWhileEmpty = { [weak self] in
self?.clearPressed()
guard let strongSelf = self else {
return
}
if strongSelf.tokens.count > 1 {
strongSelf.tokens.removeLast()
strongSelf.tokensUpdated?(strongSelf.tokens)
} else {
strongSelf.clearPressed()
}
}
self.cancelButton.addTarget(self, action: #selector(self.cancelPressed), forControlEvents: .touchUpInside)
@@ -499,7 +729,7 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
self.textBackgroundNode.layer.animateFrame(from: initialTextBackgroundFrame, to: self.textBackgroundNode.frame, duration: duration, timingFunction: timingFunction)
let textFieldFrame = self.textField.frame
let initialLabelNodeFrame = CGRect(origin: node.labelNode.frame.offsetBy(dx: initialTextBackgroundFrame.origin.x - 4.0, dy: initialTextBackgroundFrame.origin.y - 7.0).origin, size: textFieldFrame.size)
let initialLabelNodeFrame = CGRect(origin: node.labelNode.frame.offsetBy(dx: initialTextBackgroundFrame.origin.x - 4.0, dy: initialTextBackgroundFrame.origin.y - 8.0).origin, size: textFieldFrame.size)
self.textField.layer.animateFrame(from: initialLabelNodeFrame, to: self.textField.frame, duration: duration, timingFunction: timingFunction)
let iconFrame = self.iconNode.frame
@@ -515,7 +745,9 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
self.textField.resignFirstResponder()
if clear {
self.textField.text = nil
self.textField.placeholderLabel.isHidden = false
self.textField.tokens = []
self.textField.prefixString = nil
self.textField.placeholderLabel.alpha = 1.0
}
}
@@ -576,7 +808,7 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
transitionBackgroundNode.layer.animateFrame(from: self.textBackgroundNode.frame, to: targetTextBackgroundFrame, duration: duration, timingFunction: timingFunction, removeOnCompletion: false)
let textFieldFrame = self.textField.frame
let targetLabelNodeFrame = CGRect(origin: CGPoint(x: node.labelNode.frame.minX + targetTextBackgroundFrame.origin.x - 4.0, y: targetTextBackgroundFrame.minY + floorToScreenPixels((targetTextBackgroundFrame.size.height - textFieldFrame.size.height) / 2.0)), size: textFieldFrame.size)
let targetLabelNodeFrame = CGRect(origin: CGPoint(x: node.labelNode.frame.minX + targetTextBackgroundFrame.origin.x - 4.0, y: targetTextBackgroundFrame.minY + floorToScreenPixels((targetTextBackgroundFrame.size.height - textFieldFrame.size.height) / 2.0) - UIScreenPixel), size: textFieldFrame.size)
self.textField.layer.animateFrame(from: self.textField.frame, to: targetLabelNodeFrame, duration: duration, timingFunction: timingFunction, removeOnCompletion: false)
if #available(iOSApplicationExtension 10.0, iOS 10.0, *) {
if let snapshot = node.labelNode.layer.snapshotContentTree() {
@@ -636,12 +868,13 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
self.textField.selectAll(nil)
}
private func updateIsEmpty() {
let isEmpty = !(self.textField.text?.isEmpty ?? true)
if isEmpty != self.textField.placeholderLabel.isHidden {
self.textField.placeholderLabel.isHidden = isEmpty
}
self.clearButton.isHidden = !isEmpty && self.prefixString == nil
private func updateIsEmpty(animated: Bool = false) {
let isEmpty = (self.textField.text?.isEmpty ?? true) && self.tokens.isEmpty
let transition: ContainedViewLayoutTransition = animated ? .animated(duration: 0.2, curve: .linear) : .immediate
transition.updateAlpha(node: self.textField.placeholderLabel, alpha: isEmpty ? 1.0 : 0.0)
self.clearButton.isHidden = isEmpty && self.prefixString == nil
}
@objc private func cancelPressed() {
@@ -655,6 +888,9 @@ public class SearchBarNode: ASDisplayNode, UITextFieldDelegate {
if self.prefixString != nil {
self.clearPrefix?()
}
if !self.tokens.isEmpty {
self.clearTokens?()
}
} else {
self.textField.text = ""
self.textFieldDidChange(self.textField)