Dactyloidae iOS initial commit

mobile/ios/Extensions/SendTo/InstructionsViewController.swift

@@ -0,0 +1,95 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import UIKit
+import SnapKit
+
+struct InstructionsViewControllerUX {
+    static let TopPadding = CGFloat(20)
+    static let TextFont = UIFont.systemFont(ofSize: UIFont.labelFontSize)
+    static let TextColor = UIColor(rgb: 0x555555)
+    static let LinkColor = UIColor.blue
+}
+
+protocol InstructionsViewControllerDelegate: class {
+    func instructionsViewControllerDidClose(_ instructionsViewController: InstructionsViewController)
+}
+
+private func highlightLink(_ s: NSString, withColor color: UIColor) -> NSAttributedString {
+    let start = s.range(of: "<")
+    if start.location == NSNotFound {
+        return NSAttributedString(string: s as String)
+    }
+
+    var s: NSString = s.replacingCharacters(in: start, with: "") as NSString
+    let end = s.range(of: ">")
+    s = s.replacingCharacters(in: end, with: "") as NSString
+    let a = NSMutableAttributedString(string: s as String)
+    let r = NSRange(location: start.location, length: end.location-start.location)
+    a.addAttribute(NSForegroundColorAttributeName, value: color, range: r)
+    return a
+}
+
+func setupHelpView(_ view: UIView, introText: String, showMeText: String) {
+    let imageView = UIImageView()
+    imageView.image = UIImage(named: "emptySync")
+    view.addSubview(imageView)
+    imageView.snp.makeConstraints { (make) -> Void in
+        make.top.equalTo(view).offset(InstructionsViewControllerUX.TopPadding)
+        make.centerX.equalTo(view)
+    }
+
+    let label1 = UILabel()
+    view.addSubview(label1)
+    label1.text = introText
+    label1.numberOfLines = 0
+    label1.lineBreakMode = NSLineBreakMode.byWordWrapping
+    label1.font = InstructionsViewControllerUX.TextFont
+    label1.textColor = InstructionsViewControllerUX.TextColor
+    label1.textAlignment = NSTextAlignment.center
+    label1.snp.makeConstraints { (make) -> Void in
+        make.width.equalTo(250)
+        make.top.equalTo(imageView.snp.bottom).offset(InstructionsViewControllerUX.TopPadding)
+        make.centerX.equalTo(view)
+    }
+
+    let label2 = UILabel()
+    view.addSubview(label2)
+    label2.numberOfLines = 0
+    label2.lineBreakMode = NSLineBreakMode.byWordWrapping
+    label2.font = InstructionsViewControllerUX.TextFont
+    label2.textColor = InstructionsViewControllerUX.TextColor
+    label2.textAlignment = NSTextAlignment.center
+    label2.attributedText = highlightLink(showMeText as NSString, withColor: InstructionsViewControllerUX.LinkColor)
+    label2.snp.makeConstraints { (make) -> Void in
+        make.width.equalTo(250)
+        make.top.equalTo(label1.snp.bottom).offset(InstructionsViewControllerUX.TopPadding)
+        make.centerX.equalTo(view)
+    }
+}
+
+class InstructionsViewController: UIViewController {
+    weak var delegate: InstructionsViewControllerDelegate?
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        edgesForExtendedLayout = []
+        view.backgroundColor = UIColor.white
+
+        navigationItem.leftBarButtonItem = UIBarButtonItem(title: NSLocalizedString("Close", tableName: "SendTo", comment: "Close button in top navigation bar"), style: UIBarButtonItemStyle.done, target: self, action: #selector(InstructionsViewController.close))
+        navigationItem.leftBarButtonItem?.accessibilityIdentifier = "InstructionsViewController.navigationItem.leftBarButtonItem"
+
+        setupHelpView(view,
+            introText: NSLocalizedString("You are not signed in to your Firefox Account.", tableName: "SendTo", comment: "See http://mzl.la/1ISlXnU"),
+                showMeText: NSLocalizedString("Please open Firefox, go to Settings and sign in to continue.", tableName: "SendTo", comment: "See http://mzl.la/1ISlXnU"))
+    }
+
+    func close() {
+        delegate?.instructionsViewControllerDidClose(self)
+    }
+
+    func showMeHow() {
+        print("Show me how") // TODO Not sure what to do or if to keep this. Waiting for UX feedback.
+    }
+}