Swiftgram/submodules/SearchUI/Sources/SearchDisplayController.swift
2022-04-23 05:28:29 +04:00

281 lines
13 KiB
Swift

import Foundation
import UIKit
import AsyncDisplayKit
import SwiftSignalKit
import Display
import TelegramPresentationData
import SearchBarNode
public enum SearchDisplayControllerMode {
case list
case navigation
}
public final class SearchDisplayController {
private final class BackgroundNode: ASDisplayNode {
var isTransparent: Bool = false
override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
let result = self.view.hitTest(point, with: event)
if self.isTransparent, result === self.view {
return nil
} else {
return result
}
}
}
private let searchBar: SearchBarNode
private let mode: SearchDisplayControllerMode
private let backgroundNode: BackgroundNode
public let contentNode: SearchDisplayControllerContentNode
private var hasSeparator: Bool
private let inline: Bool
private var containerLayout: (ContainerViewLayout, CGFloat)?
public var isDeactivating = false
private var isSearchingDisposable: Disposable?
public init(presentationData: PresentationData, mode: SearchDisplayControllerMode = .navigation, placeholder: String? = nil, hasBackground: Bool = false, hasSeparator: Bool = false, contentNode: SearchDisplayControllerContentNode, inline: Bool = false, cancel: @escaping () -> Void) {
self.inline = inline
self.searchBar = SearchBarNode(theme: SearchBarNodeTheme(theme: presentationData.theme, hasBackground: hasBackground, hasSeparator: hasSeparator, inline: inline), strings: presentationData.strings, fieldStyle: .modern, forceSeparator: hasSeparator, displayBackground: hasBackground)
self.backgroundNode = BackgroundNode()
self.backgroundNode.backgroundColor = presentationData.theme.chatList.backgroundColor
self.backgroundNode.allowsGroupOpacity = true
self.mode = mode
self.contentNode = contentNode
self.hasSeparator = hasSeparator
self.searchBar.textUpdated = { [weak contentNode] text, _ in
contentNode?.searchTextUpdated(text: text)
}
self.searchBar.tokensUpdated = { [weak contentNode] tokens in
contentNode?.searchTokensUpdated(tokens: tokens)
}
self.searchBar.cancel = { [weak self] in
self?.isDeactivating = true
cancel()
}
self.searchBar.clearPrefix = { [weak contentNode] in
contentNode?.searchTextClearPrefix()
}
self.searchBar.clearTokens = { [weak contentNode] in
contentNode?.searchTextClearTokens()
}
self.contentNode.cancel = { [weak self] in
self?.isDeactivating = true
cancel()
}
self.contentNode.dismissInput = { [weak self] in
self?.searchBar.deactivate(clear: false)
}
var isFirstTime = true
self.contentNode.setQuery = { [weak self] prefix, tokens, query in
if let strongSelf = self {
strongSelf.searchBar.prefixString = prefix
let previousTokens = strongSelf.searchBar.tokens
strongSelf.searchBar.tokens = tokens
strongSelf.searchBar.text = query
if previousTokens.count < tokens.count && !isFirstTime {
strongSelf.searchBar.selectLastToken()
}
isFirstTime = false
}
}
if let placeholder = placeholder {
self.searchBar.placeholderString = NSAttributedString(string: placeholder, font: Font.regular(17.0), textColor: presentationData.theme.rootController.navigationSearchBar.inputPlaceholderTextColor)
}
self.contentNode.setPlaceholder = { [weak self] string in
guard string != self?.searchBar.placeholderString?.string else {
return
}
if let mutableAttributedString = self?.searchBar.placeholderString?.mutableCopy() as? NSMutableAttributedString {
mutableAttributedString.mutableString.setString(string)
self?.searchBar.placeholderString = mutableAttributedString
}
}
self.isSearchingDisposable = (contentNode.isSearching
|> deliverOnMainQueue).start(next: { [weak self] value in
self?.searchBar.activity = value
})
}
public func updatePresentationData(_ presentationData: PresentationData) {
self.searchBar.updateThemeAndStrings(theme: SearchBarNodeTheme(theme: presentationData.theme, hasSeparator: self.hasSeparator, inline: self.inline), strings: presentationData.strings)
self.contentNode.updatePresentationData(presentationData)
if self.contentNode.hasDim {
self.backgroundNode.backgroundColor = .clear
self.backgroundNode.isTransparent = true
} else {
self.backgroundNode.backgroundColor = presentationData.theme.chatList.backgroundColor
self.backgroundNode.isTransparent = false
}
}
public func containerLayoutUpdated(_ layout: ContainerViewLayout, navigationBarHeight: CGFloat, transition: ContainedViewLayoutTransition) {
let statusBarHeight: CGFloat = layout.statusBarHeight ?? 0.0
let searchBarHeight: CGFloat = max(20.0, statusBarHeight) + 44.0
let navigationBarOffset: CGFloat
if statusBarHeight.isZero {
navigationBarOffset = -20.0
} else {
navigationBarOffset = 0.0
}
var navigationBarFrame = CGRect(origin: CGPoint(x: 0.0, y: navigationBarOffset), size: CGSize(width: layout.size.width, height: searchBarHeight))
if layout.statusBarHeight == nil {
navigationBarFrame.size.height = 64.0
}
navigationBarFrame.size.height += 10.0
let searchBarFrame: CGRect
if case .navigation = self.mode {
searchBarFrame = CGRect(x: 0.0, y: 0.0, width: layout.size.width, height: 54.0)
} else {
searchBarFrame = navigationBarFrame
}
transition.updateFrame(node: self.searchBar, frame: searchBarFrame)
self.searchBar.updateLayout(boundingSize: searchBarFrame.size, leftInset: layout.safeInsets.left, rightInset: layout.safeInsets.right, transition: transition)
self.containerLayout = (layout, navigationBarFrame.maxY)
let bounds = CGRect(origin: CGPoint(), size: layout.size)
transition.updateFrame(node: self.backgroundNode, frame: bounds.insetBy(dx: -20.0, dy: -20.0))
var size = layout.size
size.width += 20.0 * 2.0
transition.updateFrame(node: self.contentNode, frame: CGRect(origin: CGPoint(x: 0.0, y: 20.0), size: size))
var safeInsets = layout.safeInsets
safeInsets.left += 20.0
safeInsets.right += 20.0
self.contentNode.containerLayoutUpdated(ContainerViewLayout(size: size, metrics: LayoutMetrics(), deviceMetrics: layout.deviceMetrics, intrinsicInsets: layout.intrinsicInsets, safeInsets: safeInsets, additionalInsets: UIEdgeInsets(), statusBarHeight: nil, inputHeight: layout.inputHeight, inputHeightIsInteractivellyChanging: layout.inputHeightIsInteractivellyChanging, inVoiceOver: layout.inVoiceOver), navigationBarHeight: navigationBarHeight, transition: transition)
}
public func activate(insertSubnode: @escaping (ASDisplayNode, Bool) -> Void, placeholder: SearchBarPlaceholderNode?, focus: Bool = true) {
guard let (layout, navigationBarHeight) = self.containerLayout else {
return
}
insertSubnode(self.backgroundNode, false)
self.backgroundNode.addSubnode(self.contentNode)
if self.contentNode.hasDim {
self.backgroundNode.backgroundColor = .clear
self.backgroundNode.isTransparent = true
} else {
self.backgroundNode.alpha = 0.0
self.backgroundNode.isTransparent = false
}
var size = layout.size
size.width += 20.0 * 2.0
self.contentNode.frame = CGRect(origin: CGPoint(x: 0.0, y: 20.0), size: size)
var safeInsets = layout.safeInsets
safeInsets.left += 20.0
safeInsets.right += 20.0
self.contentNode.containerLayoutUpdated(ContainerViewLayout(size: size, metrics: LayoutMetrics(), deviceMetrics: layout.deviceMetrics, intrinsicInsets: UIEdgeInsets(), safeInsets: safeInsets, additionalInsets: UIEdgeInsets(), statusBarHeight: nil, inputHeight: nil, inputHeightIsInteractivellyChanging: false, inVoiceOver: false), navigationBarHeight: navigationBarHeight, transition: .immediate)
var contentNavigationBarHeight = navigationBarHeight
if layout.statusBarHeight == nil {
contentNavigationBarHeight += 28.0
}
if !self.contentNode.hasDim {
self.backgroundNode.alpha = 1.0
self.backgroundNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.25, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue)
self.backgroundNode.layer.animateScale(from: 0.85, to: 1.0, duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring)
}
if !self.contentNode.hasDim {
if let placeholder = placeholder {
self.searchBar.placeholderString = placeholder.placeholderString
}
} else {
if let placeholder = placeholder {
let initialTextBackgroundFrame = placeholder.convert(placeholder.backgroundNode.frame, to: nil)
let contentNodePosition = self.backgroundNode.layer.position
self.backgroundNode.layer.animatePosition(from: CGPoint(x: contentNodePosition.x, y: contentNodePosition.y + (initialTextBackgroundFrame.maxY + 8.0 - contentNavigationBarHeight)), to: contentNodePosition, duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring)
self.searchBar.placeholderString = placeholder.placeholderString
}
}
let navigationBarFrame: CGRect
switch self.mode {
case .list:
let statusBarHeight: CGFloat = layout.statusBarHeight ?? 0.0
let searchBarHeight: CGFloat = max(20.0, statusBarHeight) + 44.0
let navigationBarOffset: CGFloat
if statusBarHeight.isZero {
navigationBarOffset = -20.0
} else {
navigationBarOffset = 0.0
}
var frame = CGRect(origin: CGPoint(x: 0.0, y: navigationBarOffset), size: CGSize(width: layout.size.width, height: searchBarHeight))
if layout.statusBarHeight == nil {
frame.size.height = 64.0
}
navigationBarFrame = frame
case .navigation:
navigationBarFrame = CGRect(x: 0.0, y: 0.0, width: layout.size.width, height: 54.0)
}
self.searchBar.frame = navigationBarFrame
insertSubnode(self.searchBar, true)
self.searchBar.layout()
if focus {
self.searchBar.activate()
}
if let placeholder = placeholder {
self.searchBar.animateIn(from: placeholder, duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring)
if self.contentNode.hasDim {
self.contentNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue)
}
} else {
self.searchBar.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue)
self.contentNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue)
}
}
public func deactivate(placeholder: SearchBarPlaceholderNode?, animated: Bool = true) {
self.searchBar.deactivate()
let searchBar = self.searchBar
if let placeholder = placeholder {
searchBar.transitionOut(to: placeholder, transition: animated ? .animated(duration: 0.5, curve: .spring) : .immediate, completion: {
[weak searchBar] in
searchBar?.removeFromSupernode()
})
} else {
searchBar.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.3, removeOnCompletion: false, completion: { [weak searchBar] _ in
searchBar?.removeFromSupernode()
})
}
let backgroundNode = self.backgroundNode
let contentNode = self.contentNode
if animated {
backgroundNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.3, removeOnCompletion: false, completion: { [weak backgroundNode] _ in
backgroundNode?.removeFromSupernode()
})
} else {
backgroundNode.removeFromSupernode()
contentNode.removeFromSupernode()
}
}
public func previewViewAndActionAtLocation(_ location: CGPoint) -> (UIView, CGRect, Any)? {
return self.contentNode.previewViewAndActionAtLocation(location)
}
}