117 lines
3.8 KiB
Swift
117 lines
3.8 KiB
Swift
//
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// URLBar.swift
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// SBrowser
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//
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// Created by James Magahern on 7/23/20.
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//
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import UIKit
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class URLBar: UIView
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{
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let textField = UITextField(frame: .zero)
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let refreshButton = UIButton(frame: .zero)
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public enum LoadProgress {
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case complete
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case loading(progress: Double)
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}
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public var loadProgress: LoadProgress = .complete {
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didSet { updateProgressIndicator() }
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}
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private let backgroundView = UIVisualEffectView(effect: UIBlurEffect(style: .systemThickMaterial))
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private let progressIndicatorView = ProgressIndicatorView()
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private let refreshImage = UIImage(systemName: "arrow.clockwise")
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private let stopImage = UIImage(systemName: "xmark")
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convenience init() {
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self.init(frame: .zero)
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backgroundColor = .clear
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backgroundView.layer.masksToBounds = true
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backgroundView.layer.cornerRadius = 8
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backgroundView.layer.borderWidth = 1
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backgroundView.layer.borderColor = UIColor.systemFill.cgColor
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backgroundView.isUserInteractionEnabled = false
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addSubview(backgroundView)
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backgroundView.contentView.addSubview(progressIndicatorView)
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textField.backgroundColor = .clear
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textField.textContentType = .URL
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textField.keyboardType = .webSearch
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textField.autocorrectionType = .no
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textField.autocapitalizationType = .none
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textField.font = .systemFont(ofSize: 14.0)
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textField.clearingBehavior = .clearOnInsertionAndShowSelectionTint
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addSubview(textField)
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refreshButton.tintColor = .secondaryLabel
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refreshButton.setImage(refreshImage, for: .normal)
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addSubview(refreshButton)
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}
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private func updateProgressIndicator() {
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UIView.animate(withDuration: 0.4) {
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switch self.loadProgress {
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case .complete:
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self.refreshButton.setImage(self.refreshImage, for: .normal)
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self.progressIndicatorView.progress = 1.0
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UIView.animate(withDuration: 0.5, delay: 0.5, options: AnimationOptions()) {
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self.progressIndicatorView.alpha = 0.0
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} completion: { _ in
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// Reset back to zero
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self.progressIndicatorView.progress = 0.0
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}
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case .loading(let progress):
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self.refreshButton.setImage(self.stopImage, for: .normal)
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self.progressIndicatorView.progress = progress
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self.progressIndicatorView.alpha = 1.0
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}
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}
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}
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override var intrinsicContentSize: CGSize {
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let preferredHeight = CGFloat(34)
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return CGSize(width: 1000.0, height: preferredHeight)
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}
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override func layoutSubviews() {
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super.layoutSubviews()
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backgroundView.frame = bounds
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progressIndicatorView.frame = backgroundView.contentView.bounds
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textField.frame = bounds.insetBy(dx: 6.0, dy: 0)
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let refreshButtonSize = CGSize(width: textField.frame.height, height: textField.frame.height)
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refreshButton.frame = CGRect(origin: CGPoint(x: bounds.width - refreshButtonSize.width, y: 0), size: refreshButtonSize)
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}
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}
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class ProgressIndicatorView: UIView
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{
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public var progress: Double = 0.0 {
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didSet { layoutSubviews() }
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}
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private let progressFillView = UIView(frame: .zero)
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convenience init() {
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self.init(frame: .zero)
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progressFillView.backgroundColor = .systemBlue
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progressFillView.alpha = 0.3
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addSubview(progressFillView)
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}
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override func layoutSubviews() {
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super.layoutSubviews()
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let width = CGFloat(progress) * bounds.width
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progressFillView.frame = CGRect(origin: .zero, size: CGSize(width: width, height: bounds.height))
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}
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}
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