Tabs implementation

Favicons and stuff too
2020-07-30 23:54:20 -07:00
parent bba9efbbb6
commit 6baf543da3
14 changed files with 487 additions and 105 deletions
--- a/Bar/TitlebarView.swift
+++ b/Bar/TitlebarView.swift
@@ -0,0 +1,60 @@
+//
+//  TitlebarView.swift
+//  SBrowser
+//
+//  Created by James Magahern on 7/29/20.
+//
+
+import UIKit
+
+class TitlebarView: UIView
+{
+    public let titleLabelView = UILabel(frame: .zero)
+    private let backgroundImageView = UIImageView(frame: .zero)
+    
+    convenience init() {
+        self.init(frame: .zero)
+        addSubview(backgroundImageView)
+        addSubview(titleLabelView)
+        
+        titleLabelView.textColor = .white
+        titleLabelView.layer.shadowColor = UIColor.black.cgColor
+        titleLabelView.layer.shadowRadius = 0.0
+        titleLabelView.layer.shadowOffset = CGSize(width: 0.0, height: 2.0)
+        titleLabelView.font = UIFont.boldSystemFont(ofSize: 12.0)
+    }
+        
+    private func backgroundImageForSize(_ size: CGSize) -> UIImage? {
+        var image: UIImage? = nil
+        
+        UIGraphicsBeginImageContext(CGSize(width: size.width, height: 1.0))
+        if let context = UIGraphicsGetCurrentContext() {
+            let gradientColorsArray = [
+                UIColor(red: 0.101, green: 0.176, blue: 0.415, alpha: 1.0).cgColor,
+                UIColor(red: 0.153, green: 0.000, blue: 0.153, alpha: 1.0).cgColor
+            ]
+            
+            if let gradient = CGGradient(colorsSpace: nil, colors: gradientColorsArray as CFArray, locations: nil) {
+                context.drawLinearGradient(gradient, start: .zero, end: CGPoint(x: size.width, y: 0.0), options: CGGradientDrawingOptions())
+            }
+            
+            image = UIGraphicsGetImageFromCurrentImageContext()
+            UIGraphicsEndImageContext();
+        }
+        
+        return image
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        backgroundImageView.frame = bounds
+        titleLabelView.frame = bounds.avoiding(verticalInsets: safeAreaInsets).insetBy(dx: 8.0 + layoutMargins.left, dy: 0.0)
+        
+        if let image = backgroundImageView.image, image.size == bounds.size {
+            // No op
+        } else {
+            backgroundImageView.image = backgroundImageForSize(bounds.size)
+        }
+    }
+}
--- a/Bar/ToolbarViewController.swift
+++ b/Bar/ToolbarViewController.swift
@@ -0,0 +1,199 @@
+//
+//  ToolbarViewController.swift
+//  SBrowser
+//
+//  Created by James Magahern on 7/23/20.
+//
+
+import UIKit
+
+class ToolbarButtonView: UIView
+{
+    private var buttonPadding = CGFloat(24.0)
+    private var buttonViews: [UIView] = []
+    
+    func addButtonView(_ button: UIView) {
+        buttonViews.append(button)
+        addSubview(button)
+        setNeedsLayout()
+    }
+    
+    func removeAllButtonViews() {
+        buttonViews.forEach { $0.removeFromSuperview() }
+        buttonViews.removeAll()
+        setNeedsLayout()
+    }
+    
+    override func sizeThatFits(_ size: CGSize) -> CGSize {
+        let width: CGFloat = buttonViews.reduce(0.0) { (result, button) -> CGFloat in
+            return result + button.sizeThatFits(size).width + buttonPadding
+        }
+        
+        return CGSize(width: width, height: size.height)
+    }
+    
+    override func layoutSubviews() {
+        var buttonRect = CGRect(origin: .zero, size: CGSize(width: 0, height: bounds.height))
+        buttonRect.origin.x = layoutMargins.left
+        
+        for button in buttonViews {
+            let buttonSize = button.sizeThatFits(bounds.size)
+            buttonRect.size = CGSize(width: buttonSize.width, height: bounds.height)
+            button.frame = buttonRect
+            
+            buttonRect.origin.x += buttonRect.width + buttonPadding
+        }
+    }
+}
+
+class ToolbarView: UIView
+{
+    var urlBar: URLBar? { didSet { containerView.addSubview(urlBar!) } }
+    
+    var cancelButtonVisible: Bool = false { didSet { layoutSubviews() } }
+    
+    let containerView = UIView(frame: .zero)
+    let backgroundView = UIVisualEffectView(effect: UIBlurEffect(style: .systemThickMaterial))
+    let buttonsView = ToolbarButtonView(frame: .zero)
+    let cancelButton = UIButton(type: .system)
+    
+    convenience init()
+    {
+        self.init(frame: .zero)
+        addSubview(backgroundView)
+        addSubview(containerView)
+        
+        containerView.addSubview(buttonsView)
+        
+        cancelButton.setTitle("Cancel", for: .normal)
+        containerView.addSubview(cancelButton)
+        
+        layer.masksToBounds = false
+        layer.shadowColor = UIColor.black.cgColor
+        layer.shadowOpacity = 0.2
+        layer.shadowOffset = CGSize(width: 0.0, height: 1.0)
+        layer.shadowRadius = 1.5
+    }
+    
+    override func sizeThatFits(_ size: CGSize) -> CGSize
+    {
+        return CGSize(width: size.width, height: 44.0)
+    }
+    
+    override func layoutSubviews()
+    {
+        super.layoutSubviews()
+
+        backgroundView.frame = bounds
+        
+        var containerBounds = bounds
+        containerBounds.size.height -= safeAreaInsets.bottom
+        containerView.frame = containerBounds
+        containerView.frame = containerView.frame.insetBy(dx: 8.0, dy: 4.0)
+        
+        // Cancel button
+        let urlBarPadding: CGFloat = 8.0
+        let cancelButtonSize = cancelButton.sizeThatFits(containerView.bounds.size)
+        cancelButton.frame = CGRect(origin: CGPoint(x: (containerView.bounds.maxX - cancelButtonSize.width), y: 0),
+                                    size: CGSize(width: cancelButtonSize.width, height: containerView.bounds.height))
+        
+        // Toolbar buttons
+        let buttonContainerSize = buttonsView.sizeThatFits(containerView.bounds.size)
+        buttonsView.frame = CGRect(origin: CGPoint(x: (containerView.bounds.maxX - buttonContainerSize.width) + urlBarPadding, y: 0), size: buttonContainerSize)
+        
+        var avoidingSize: CGSize = .zero
+        if cancelButtonVisible {
+            cancelButton.alpha = 1.0
+            buttonsView.alpha = 0.0
+            
+            avoidingSize = cancelButtonSize
+        } else {
+            cancelButton.alpha = 0.0
+            buttonsView.alpha = 1.0
+            
+            avoidingSize = buttonContainerSize
+        }
+        
+        if let urlBar = urlBar {
+            urlBar.frame = CGRect(origin: .zero, size: CGSize(width: containerView.bounds.width - avoidingSize.width - urlBarPadding, height: containerView.bounds.height))
+        }
+    }
+}
+
+class ToolbarViewController: UIViewController
+{
+    let urlBar = URLBar()
+    let toolbarView = ToolbarView()
+    let scriptControllerIconView = ScriptControllerIconView()
+    let shareButton = UIButton(frame: .zero)
+    let darkModeButton = UIButton(frame: .zero)
+    let windowButton = UIButton(frame: .zero)
+    
+    var darkModeEnabled: Bool = false {
+        didSet {
+            if darkModeEnabled {
+                darkModeButton.setImage(darkModeEnabledImage, for: .normal)
+            } else {
+                darkModeButton.setImage(darkModeDisabledImage, for: .normal)
+            }
+        }
+    }
+    
+    private let darkModeDisabledImage = UIImage(systemName: "moon.circle")
+    private let darkModeEnabledImage = UIImage(systemName: "moon.circle.fill")
+    
+    init() {
+        super.init(nibName: nil, bundle: nil)
+        
+        toolbarView.urlBar = urlBar
+        
+        // Dark mode button
+        darkModeButton.setImage(darkModeDisabledImage, for: .normal)
+        
+        // Share button
+        shareButton.setImage(UIImage(systemName: "square.and.arrow.up"), for: .normal)
+        
+        // Window button
+        windowButton.setImage(UIImage(systemName: "rectangle.on.rectangle"), for: .normal)
+        
+        let toolbarAnimationDuration: TimeInterval = 0.3
+        urlBar.textField.addAction(.init(handler: { [weak self] _ in
+            guard let self = self else { return }
+            UIView.animate(withDuration: toolbarAnimationDuration) {
+                self.toolbarView.cancelButtonVisible = self.urlBar.textField.isFirstResponder
+            }
+        }), for: [ .editingDidBegin, .editingDidEnd ])
+        
+        toolbarView.cancelButton.addAction(.init(handler: { [weak self] action in
+            self?.urlBar.textField.resignFirstResponder()
+        }), for: .touchUpInside)
+        
+        traitCollectionDidChange(nil)
+    }
+    
+    override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
+        super.traitCollectionDidChange(previousTraitCollection)
+        
+        toolbarView.buttonsView.removeAllButtonViews()
+        
+        // Setup toolbar based on trait collection
+        if traitCollection.horizontalSizeClass == .compact {
+            toolbarView.buttonsView.addButtonView(darkModeButton)
+            toolbarView.buttonsView.addButtonView(scriptControllerIconView)
+            toolbarView.buttonsView.addButtonView(windowButton)
+        } else {
+            toolbarView.buttonsView.addButtonView(darkModeButton)
+            toolbarView.buttonsView.addButtonView(shareButton)
+            toolbarView.buttonsView.addButtonView(scriptControllerIconView)
+            toolbarView.buttonsView.addButtonView(windowButton)
+        }
+    }
+    
+    override func loadView() {
+        self.view = toolbarView
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+}
--- a/SBrowser/Titlebar
+++ b/SBrowser/Titlebar
@@ -0,0 +1,161 @@
+//
+//  URLBar.swift
+//  SBrowser
+//
+//  Created by James Magahern on 7/23/20.
+//
+
+import UIKit
+
+class URLBar: UIView
+{
+    let textField = UITextField(frame: .zero)
+    let refreshButton = UIButton(frame: .zero)
+    
+    public enum LoadProgress {
+        case complete
+        case loading(progress: Double)
+    }
+    
+    public var loadProgress: LoadProgress = .complete {
+        didSet { updateProgressIndicator() }
+    }
+    
+    private let backgroundView = UIVisualEffectView(effect: UIBlurEffect(style: .systemThickMaterial))
+    private let progressIndicatorView = ProgressIndicatorView()
+    private let fadeMaskView = UIImageView(frame: .zero)
+    
+    private let refreshImage = UIImage(systemName: "arrow.clockwise")
+    private let stopImage = UIImage(systemName: "xmark")
+    
+    private let backgroundCornerRadius: CGFloat = 8
+    
+    convenience init() {
+        self.init(frame: .zero)
+        
+        backgroundColor = .clear
+        
+        backgroundView.layer.masksToBounds = true
+        backgroundView.layer.cornerRadius = backgroundCornerRadius
+        backgroundView.layer.borderWidth = 1
+        backgroundView.layer.borderColor = UIColor.systemFill.cgColor
+        backgroundView.isUserInteractionEnabled = false
+        addSubview(backgroundView)
+        
+        backgroundView.contentView.addSubview(progressIndicatorView)
+        
+        textField.backgroundColor = .clear
+        textField.textContentType = .URL
+        textField.keyboardType = .webSearch
+        textField.autocorrectionType = .no
+        textField.autocapitalizationType = .none
+        textField.font = .systemFont(ofSize: 14.0)
+        textField.clearingBehavior = .clearOnInsertionAndShowSelectionTint
+        textField.clearButtonMode = .whileEditing
+        addSubview(textField)
+        
+        textField.addAction(.init(handler: { [weak self] _ in
+            if let self = self {
+                self.refreshButton.isHidden = self.textField.isFirstResponder
+            }
+        }), for: [ .editingDidBegin, .editingDidEnd ])
+        
+        refreshButton.tintColor = .secondaryLabel
+        refreshButton.setImage(refreshImage, for: .normal)
+        addSubview(refreshButton)
+    }
+    
+    private func updateProgressIndicator() {
+        UIView.animate(withDuration: 0.4) {
+            switch self.loadProgress {
+            case .complete:
+                self.refreshButton.setImage(self.refreshImage, for: .normal)
+                self.progressIndicatorView.progress = 1.0
+                UIView.animate(withDuration: 0.5, delay: 0.5, options: AnimationOptions()) {
+                    self.progressIndicatorView.alpha = 0.0
+                } completion: { _ in
+                    // Reset back to zero
+                    self.progressIndicatorView.progress = 0.0
+                }
+            case .loading(let progress):
+                self.refreshButton.setImage(self.stopImage, for: .normal)
+                self.progressIndicatorView.progress = progress
+                self.progressIndicatorView.alpha = 1.0
+            }
+        }
+    }
+    
+    override var intrinsicContentSize: CGSize {
+        let preferredHeight = CGFloat(34)
+        return CGSize(width: 1000.0, height: preferredHeight)
+    }
+    
+    private func fadeBackgroundImageForSize(_ size: CGSize) -> UIImage? {
+        var image: UIImage? = nil
+        
+        UIGraphicsBeginImageContext(CGSize(width: size.width, height: 1.0))
+        if let context = UIGraphicsGetCurrentContext() {
+            let gradientColorsArray = [
+                UIColor(white: 1.0, alpha: 1.0).cgColor,
+                UIColor(white: 1.0, alpha: 1.0).cgColor,
+                UIColor(white: 1.0, alpha: 0.08).cgColor,
+                UIColor(white: 1.0, alpha: 0.08).cgColor
+            ]
+            
+            let locations: [CGFloat] = [
+                0.0, 0.80, 0.90, 1.0
+            ]
+            
+            if let gradient = CGGradient(colorsSpace: nil, colors: gradientColorsArray as CFArray, locations: locations) {
+                context.drawLinearGradient(gradient, start: .zero, end: CGPoint(x: size.width, y: 0.0), options: CGGradientDrawingOptions())
+            }
+            
+            image = UIGraphicsGetImageFromCurrentImageContext()
+            UIGraphicsEndImageContext();
+        }
+        
+        return image
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        backgroundView.frame = bounds
+        progressIndicatorView.frame = backgroundView.contentView.bounds
+        textField.frame = bounds.insetBy(dx: 6.0, dy: 0)
+        
+        fadeMaskView.frame = textField.bounds
+        fadeMaskView.image = fadeBackgroundImageForSize(fadeMaskView.frame.size)
+        if !textField.isFirstResponder {
+            textField.mask = fadeMaskView
+        } else {
+            textField.mask = nil
+        }
+        
+        let refreshButtonSize = CGSize(width: textField.frame.height, height: textField.frame.height)
+        refreshButton.frame = CGRect(origin: CGPoint(x: bounds.width - refreshButtonSize.width, y: 0), size: refreshButtonSize)
+    }
+}
+
+class ProgressIndicatorView: UIView
+{
+    public var progress: Double = 0.0 {
+        didSet { layoutSubviews() }
+    }
+    
+    private let progressFillView = UIView(frame: .zero)
+    
+    convenience init() {
+        self.init(frame: .zero)
+        
+        progressFillView.backgroundColor = .systemBlue
+        progressFillView.alpha = 0.3
+        addSubview(progressFillView)
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        let width = CGFloat(progress) * bounds.width
+        progressFillView.frame = CGRect(origin: .zero, size: CGSize(width: width, height: bounds.height))
+    }
+}