//
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// EKFormMessageView.swift
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// SwiftEntryKit
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//
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// Created by Daniel Huri on 5/15/18.
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//
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import UIKit
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final public class EKFormMessageView: UIView {
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private let scrollViewVerticalOffset: CGFloat = 20
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// MARK: Props
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private let titleLabel = UILabel()
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private let scrollView = UIScrollView()
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private let textFieldsContent: [EKProperty.TextFieldContent]
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private var textFieldViews: [EKTextField] = []
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private var buttonBarView: EKButtonBarView!
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private let titleContent: EKProperty.LabelContent
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// MARK: Setup
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public init(with title: EKProperty.LabelContent,
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textFieldsContent: [EKProperty.TextFieldContent],
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buttonContent: EKProperty.ButtonContent) {
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self.titleContent = title
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self.textFieldsContent = textFieldsContent
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super.init(frame: UIScreen.main.bounds)
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setupScrollView()
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setupTitleLabel()
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setupTextFields(with: textFieldsContent)
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setupButton(with: buttonContent)
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setupTapGestureRecognizer()
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scrollView.layoutIfNeeded()
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set(.height,
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of: scrollView.contentSize.height + scrollViewVerticalOffset * 2,
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priority: .defaultHigh)
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}
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required public init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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private func setupTextFields(with textFieldsContent: [EKProperty.TextFieldContent]) {
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var textFieldIndex = 0
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textFieldViews = textFieldsContent.map { content -> EKTextField in
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let textField = EKTextField(with: content)
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scrollView.addSubview(textField)
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textField.tag = textFieldIndex
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textFieldIndex += 1
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return textField
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}
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textFieldViews.first!.layout(.top, to: .bottom, of: titleLabel, offset: 20)
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textFieldViews.spread(.vertically, offset: 5)
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textFieldViews.layoutToSuperview(axis: .horizontally)
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}
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// Setup tap gesture
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private func setupTapGestureRecognizer() {
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let tapGestureRecognizer = UITapGestureRecognizer(
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target: self,
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action: #selector(tapGestureRecognized)
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)
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tapGestureRecognizer.numberOfTapsRequired = 1
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addGestureRecognizer(tapGestureRecognizer)
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}
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private func setupScrollView() {
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addSubview(scrollView)
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scrollView.layoutToSuperview(axis: .horizontally, offset: 20)
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scrollView.layoutToSuperview(axis: .vertically, offset: scrollViewVerticalOffset)
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scrollView.layoutToSuperview(.width, .height, offset: -scrollViewVerticalOffset * 2)
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}
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private func setupTitleLabel() {
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scrollView.addSubview(titleLabel)
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titleLabel.layoutToSuperview(.top, .width)
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titleLabel.layoutToSuperview(axis: .horizontally)
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titleLabel.forceContentWrap(.vertically)
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titleLabel.content = titleContent
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}
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private func setupButton(with buttonContent: EKProperty.ButtonContent) {
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var buttonContent = buttonContent
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let action = buttonContent.action
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buttonContent.action = { [weak self] in
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self?.extractTextFieldsContent()
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action?()
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}
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let buttonsBarContent = EKProperty.ButtonBarContent(
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with: buttonContent,
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separatorColor: .clear,
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expandAnimatedly: true
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)
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buttonBarView = EKButtonBarView(with: buttonsBarContent)
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buttonBarView.clipsToBounds = true
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scrollView.addSubview(buttonBarView)
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buttonBarView.expand()
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buttonBarView.layout(.top, to: .bottom, of: textFieldViews.last!, offset: 20)
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buttonBarView.layoutToSuperview(.centerX)
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buttonBarView.layoutToSuperview(.width, offset: -40)
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buttonBarView.layoutToSuperview(.bottom)
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buttonBarView.layer.cornerRadius = 5
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}
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private func extractTextFieldsContent() {
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for (content, textField) in zip(textFieldsContent, textFieldViews) {
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content.contentWrapper.text = textField.text
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}
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}
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/** Makes a specific text field the first responder */
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public func becomeFirstResponder(with textFieldIndex: Int) {
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textFieldViews[textFieldIndex].makeFirstResponder()
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}
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public override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
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titleLabel.textColor = titleContent.style.color(for: traitCollection)
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}
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// MARK: User Intractions
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// Tap Gesture
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@objc func tapGestureRecognized() {
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endEditing(true)
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}
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}
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