mirror of
https://github.com/Swiftgram/Telegram-iOS.git
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368 lines
15 KiB
Swift
368 lines
15 KiB
Swift
import Foundation
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import UIKit
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import Display
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import ComponentFlow
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import TelegramPresentationData
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import MultilineTextComponent
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import ListSectionComponent
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import TextFieldComponent
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import AccountContext
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public final class ListMultilineTextFieldItemComponent: Component {
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public final class ExternalState {
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public fileprivate(set) var hasText: Bool = false
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public fileprivate(set) var text: NSAttributedString = NSAttributedString()
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public fileprivate(set) var isEditing: Bool = false
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public init() {
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}
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}
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public final class ResetText: Equatable {
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public let value: String
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public init(value: String) {
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self.value = value
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}
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public static func ==(lhs: ResetText, rhs: ResetText) -> Bool {
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return lhs === rhs
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}
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}
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public enum EmptyLineHandling {
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case allowed
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case oneConsecutive
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case notAllowed
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}
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public let externalState: ExternalState?
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public let context: AccountContext
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public let theme: PresentationTheme
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public let strings: PresentationStrings
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public let initialText: String
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public let resetText: ResetText?
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public let placeholder: String
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public let autocapitalizationType: UITextAutocapitalizationType
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public let autocorrectionType: UITextAutocorrectionType
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public let characterLimit: Int?
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public let displayCharacterLimit: Bool
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public let emptyLineHandling: EmptyLineHandling
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public let updated: ((String) -> Void)?
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public let textUpdateTransition: Transition
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public let tag: AnyObject?
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public init(
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externalState: ExternalState? = nil,
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context: AccountContext,
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theme: PresentationTheme,
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strings: PresentationStrings,
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initialText: String,
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resetText: ResetText? = nil,
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placeholder: String,
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autocapitalizationType: UITextAutocapitalizationType = .sentences,
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autocorrectionType: UITextAutocorrectionType = .default,
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characterLimit: Int? = nil,
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displayCharacterLimit: Bool = false,
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emptyLineHandling: EmptyLineHandling = .allowed,
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updated: ((String) -> Void)?,
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textUpdateTransition: Transition = .immediate,
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tag: AnyObject? = nil
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) {
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self.externalState = externalState
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self.context = context
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self.theme = theme
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self.strings = strings
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self.initialText = initialText
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self.resetText = resetText
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self.placeholder = placeholder
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self.autocapitalizationType = autocapitalizationType
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self.autocorrectionType = autocorrectionType
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self.characterLimit = characterLimit
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self.displayCharacterLimit = displayCharacterLimit
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self.emptyLineHandling = emptyLineHandling
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self.updated = updated
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self.textUpdateTransition = textUpdateTransition
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self.tag = tag
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}
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public static func ==(lhs: ListMultilineTextFieldItemComponent, rhs: ListMultilineTextFieldItemComponent) -> Bool {
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if lhs.externalState !== rhs.externalState {
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return false
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}
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if lhs.context !== rhs.context {
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return false
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}
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if lhs.theme !== rhs.theme {
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return false
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}
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if lhs.strings !== rhs.strings {
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return false
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}
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if lhs.initialText != rhs.initialText {
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return false
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}
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if lhs.resetText != rhs.resetText {
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return false
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}
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if lhs.placeholder != rhs.placeholder {
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return false
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}
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if lhs.autocapitalizationType != rhs.autocapitalizationType {
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return false
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}
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if lhs.autocorrectionType != rhs.autocorrectionType {
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return false
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}
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if lhs.characterLimit != rhs.characterLimit {
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return false
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}
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if lhs.displayCharacterLimit != rhs.displayCharacterLimit {
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return false
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}
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if lhs.emptyLineHandling != rhs.emptyLineHandling {
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return false
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}
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if (lhs.updated == nil) != (rhs.updated == nil) {
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return false
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}
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return true
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}
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private final class TextField: UITextField {
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var sideInset: CGFloat = 0.0
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override func textRect(forBounds bounds: CGRect) -> CGRect {
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return CGRect(origin: CGPoint(x: self.sideInset, y: 0.0), size: CGSize(width: bounds.width - self.sideInset * 2.0, height: bounds.height))
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}
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override func editingRect(forBounds bounds: CGRect) -> CGRect {
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return CGRect(origin: CGPoint(x: self.sideInset, y: 0.0), size: CGSize(width: bounds.width - self.sideInset * 2.0, height: bounds.height))
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}
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}
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public final class View: UIView, ListSectionComponent.ChildView, ComponentTaggedView {
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private let textField = ComponentView<Empty>()
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private let textFieldExternalState = TextFieldComponent.ExternalState()
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private let placeholder = ComponentView<Empty>()
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private var measureTextLimitLabel: ComponentView<Empty>?
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private var textLimitLabel: ComponentView<Empty>?
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private var component: ListMultilineTextFieldItemComponent?
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private weak var state: EmptyComponentState?
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private var isUpdating: Bool = false
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public var currentText: String {
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if let textFieldView = self.textField.view as? TextFieldComponent.View {
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return textFieldView.inputState.inputText.string
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} else {
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return ""
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}
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}
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public var customUpdateIsHighlighted: ((Bool) -> Void)?
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public private(set) var separatorInset: CGFloat = 0.0
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public override init(frame: CGRect) {
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super.init(frame: CGRect())
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}
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required public init?(coder: NSCoder) {
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preconditionFailure()
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}
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public func setText(text: String, updateState: Bool) {
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if let textFieldView = self.textField.view as? TextFieldComponent.View {
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//TODO
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let _ = textFieldView
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}
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if updateState {
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self.component?.updated?(self.currentText)
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} else {
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self.state?.updated(transition: .immediate, isLocal: true)
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}
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}
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public func matches(tag: Any) -> Bool {
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if let component = self.component, let componentTag = component.tag {
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let tag = tag as AnyObject
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if componentTag === tag {
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return true
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}
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}
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return false
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}
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func update(component: ListMultilineTextFieldItemComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: Transition) -> CGSize {
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self.isUpdating = true
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defer {
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self.isUpdating = false
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}
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self.component = component
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self.state = state
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let verticalInset: CGFloat = 12.0
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let sideInset: CGFloat = 16.0
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let textLimitFont = Font.regular(15.0)
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var measureTextLimitInset: CGFloat = 0.0
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if component.characterLimit != nil && component.displayCharacterLimit {
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let measureTextLimitLabel: ComponentView<Empty>
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if let current = self.measureTextLimitLabel {
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measureTextLimitLabel = current
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} else {
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measureTextLimitLabel = ComponentView()
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self.measureTextLimitLabel = measureTextLimitLabel
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}
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let measureTextLimitSize = measureTextLimitLabel.update(
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transition: .immediate,
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component: AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: "000", font: textLimitFont))
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)),
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environment: {},
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containerSize: CGSize(width: 100.0, height: 100.0)
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)
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measureTextLimitInset = measureTextLimitSize.width + 4.0
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} else {
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self.measureTextLimitLabel = nil
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}
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let mappedEmptyLineHandling: TextFieldComponent.EmptyLineHandling
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switch component.emptyLineHandling {
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case .allowed:
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mappedEmptyLineHandling = .allowed
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case .oneConsecutive:
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mappedEmptyLineHandling = .oneConsecutive
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case .notAllowed:
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mappedEmptyLineHandling = .notAllowed
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}
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let textFieldSize = self.textField.update(
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transition: transition,
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component: AnyComponent(TextFieldComponent(
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context: component.context,
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theme: component.theme,
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strings: component.strings,
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externalState: self.textFieldExternalState,
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fontSize: 17.0,
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textColor: component.theme.list.itemPrimaryTextColor,
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insets: UIEdgeInsets(top: verticalInset, left: sideInset - 8.0, bottom: verticalInset, right: sideInset - 8.0 + measureTextLimitInset),
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hideKeyboard: false,
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customInputView: nil,
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resetText: component.resetText.flatMap { resetText in
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return NSAttributedString(string: resetText.value, font: Font.regular(17.0), textColor: component.theme.list.itemPrimaryTextColor)
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},
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isOneLineWhenUnfocused: false,
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characterLimit: component.characterLimit,
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emptyLineHandling: mappedEmptyLineHandling,
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formatMenuAvailability: .none,
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lockedFormatAction: {
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},
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present: { _ in
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},
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paste: { _ in
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}
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)),
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environment: {},
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containerSize: availableSize
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)
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let size = CGSize(width: textFieldSize.width, height: textFieldSize.height - 1.0)
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let textFieldFrame = CGRect(origin: CGPoint(), size: textFieldSize)
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if let textFieldView = self.textField.view {
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if textFieldView.superview == nil {
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self.addSubview(textFieldView)
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self.textField.parentState = state
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}
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transition.setFrame(view: textFieldView, frame: textFieldFrame)
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}
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let placeholderSize = self.placeholder.update(
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transition: .immediate,
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component: AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: component.placeholder.isEmpty ? " " : component.placeholder, font: Font.regular(17.0), textColor: component.theme.list.itemPlaceholderTextColor))
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)),
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environment: {},
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containerSize: CGSize(width: availableSize.width - sideInset * 2.0, height: 100.0)
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)
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let placeholderFrame = CGRect(origin: CGPoint(x: sideInset, y: verticalInset), size: placeholderSize)
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if let placeholderView = self.placeholder.view {
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if placeholderView.superview == nil {
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placeholderView.layer.anchorPoint = CGPoint()
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placeholderView.isUserInteractionEnabled = false
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self.insertSubview(placeholderView, at: 0)
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}
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transition.setPosition(view: placeholderView, position: placeholderFrame.origin)
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placeholderView.bounds = CGRect(origin: CGPoint(), size: placeholderFrame.size)
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placeholderView.isHidden = self.textFieldExternalState.hasText
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}
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self.separatorInset = 16.0
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component.externalState?.hasText = self.textFieldExternalState.hasText
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component.externalState?.text = self.textFieldExternalState.text
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component.externalState?.isEditing = self.textFieldExternalState.isEditing
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var displayRemainingLimit: Int?
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if let characterLimit = component.characterLimit, component.displayCharacterLimit {
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let remainingLimit = characterLimit - self.textFieldExternalState.text.length
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let displayThreshold = max(10, Int(Double(characterLimit) * 0.15))
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if remainingLimit <= displayThreshold {
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displayRemainingLimit = remainingLimit
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}
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}
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if let displayRemainingLimit {
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let textLimitLabel: ComponentView<Empty>
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var textLimitLabelTransition = transition
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if let current = self.textLimitLabel {
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textLimitLabel = current
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} else {
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textLimitLabelTransition = textLimitLabelTransition.withAnimation(.none)
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textLimitLabel = ComponentView()
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self.textLimitLabel = textLimitLabel
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}
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let textLimitLabelSize = textLimitLabel.update(
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transition: .immediate,
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component: AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: "\(displayRemainingLimit)", font: textLimitFont, textColor: component.theme.list.itemSecondaryTextColor))
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)),
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environment: {},
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containerSize: CGSize(width: 100.0, height: 100.0)
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)
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let textLimitLabelFrame = CGRect(origin: CGPoint(x: availableSize.width - textLimitLabelSize.width - sideInset, y: verticalInset + 2.0), size: textLimitLabelSize)
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if let textLimitLabelView = textLimitLabel.view {
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if textLimitLabelView.superview == nil {
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textLimitLabelView.isUserInteractionEnabled = false
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textLimitLabelView.layer.anchorPoint = CGPoint(x: 1.0, y: 0.0)
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self.addSubview(textLimitLabelView)
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}
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textLimitLabelTransition.setPosition(view: textLimitLabelView, position: CGPoint(x: textLimitLabelFrame.maxX, y: textLimitLabelFrame.minY))
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textLimitLabelView.bounds = CGRect(origin: CGPoint(), size: textLimitLabelFrame.size)
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}
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} else {
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if let textLimitLabel = self.textLimitLabel {
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self.textLimitLabel = nil
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textLimitLabel.view?.removeFromSuperview()
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}
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}
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return size
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}
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}
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public func makeView() -> View {
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return View(frame: CGRect())
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}
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public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: Transition) -> CGSize {
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return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
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}
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}
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