From 8b255702c674bf1bfeca96697711f6e4f088dfdb Mon Sep 17 00:00:00 2001
From: Nicholas Tay <nick@windblume.net>
Date: Mon, 18 Jul 2022 00:07:21 +1000
Subject: Try out 'share' aka UIActivityViewController

---
 foray/Coordinators/ForayCoordinator.swift    | 32 ++++++++++++++++++++++++++++
 foray/Scenes/ForayDetailView.swift           | 29 ++++++++++++++++++++++++-
 foray/Scenes/ForayDetailViewController.swift | 12 ++++++++++-
 3 files changed, 71 insertions(+), 2 deletions(-)

(limited to 'foray')

diff --git a/foray/Coordinators/ForayCoordinator.swift b/foray/Coordinators/ForayCoordinator.swift
index 874f486..972bfb8 100644
--- a/foray/Coordinators/ForayCoordinator.swift
+++ b/foray/Coordinators/ForayCoordinator.swift
@@ -7,6 +7,7 @@
 
 import Foundation
 import UIKit
+import LinkPresentation
 
 class ForayCoordinator: Coordinator {
     var childCoordinators = [Coordinator]()
@@ -36,4 +37,35 @@ class ForayCoordinator: Coordinator {
     func hideLoading() {
         loadingOverlay.hide()
     }
+
+    func share(item: PenguinItemViewModel) {
+        let itemSource = ForayLinkPresentationSource(title: "\(item.name) (#\(item.id))", shareURL: URL(string: "https://nick.tay.blue/")!)
+        let activity = UIActivityViewController(activityItems: [itemSource], applicationActivities: nil)
+        navigationController.present(activity, animated: true)
+    }
+}
+
+class ForayLinkPresentationSource: NSObject, UIActivityItemSource {
+    private let metadata: LPLinkMetadata
+
+    func activityViewControllerLinkMetadata(_ activityViewController: UIActivityViewController) -> LPLinkMetadata? {
+        return metadata
+    }
+
+    func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
+        guard let url = metadata.originalURL else { return "" }
+        return url.absoluteURL
+    }
+
+    func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivity.ActivityType?) -> Any? {
+        return metadata.originalURL
+    }
+
+    init(title: String, shareURL: URL) {
+        metadata = LPLinkMetadata()
+        metadata.iconProvider = NSItemProvider(contentsOf: Bundle.main.url(forResource: "spy", withExtension: "png"))
+        metadata.originalURL = shareURL
+        metadata.url = shareURL
+        metadata.title = title
+    }
 }
diff --git a/foray/Scenes/ForayDetailView.swift b/foray/Scenes/ForayDetailView.swift
index 5997016..cd70ffc 100644
--- a/foray/Scenes/ForayDetailView.swift
+++ b/foray/Scenes/ForayDetailView.swift
@@ -38,6 +38,21 @@ class ForayDetailView: UIView {
         l.numberOfLines = 10
         return l
     }()
+
+    private lazy var shareButton: UIButton = {
+        let b = UIButton()
+        b.addTarget(self, action: #selector(onShareButton), for: .touchUpInside)
+        b.setTitle("Share", for: .normal)
+        b.setTitleColor(UIColor.systemBlue, for: .normal)
+        b.backgroundColor = UIColor.clear
+        return b
+    }()
+
+    enum ActionType {
+        case onShare
+    }
+
+    var onAction: ((ActionType) -> Void)?
     
     override init(frame: CGRect) {
         super.init(frame: frame)
@@ -56,6 +71,7 @@ class ForayDetailView: UIView {
         
         container.addSubview(nameLabel)
         container.addSubview(itemImageView)
+        container.addSubview(shareButton)
         container.addSubview(descLabel)
         
         setupConstraints()
@@ -80,8 +96,14 @@ class ForayDetailView: UIView {
             make.leading.trailing.equalToSuperview()
             make.height.equalTo(150)
         }
+        shareButton.snp.makeConstraints { (make) in
+            make.top.equalTo(itemImageView.snp.bottom).offset(16)
+            make.width.equalTo(50)
+            make.height.equalTo(25)
+            make.centerX.equalToSuperview()
+        }
         descLabel.snp.makeConstraints { (make) in
-            make.top.equalTo(itemImageView.snp.bottom).offset(32)
+            make.top.equalTo(shareButton.snp.bottom).offset(32)
             make.leading.trailing.equalToSuperview()
             make.bottom.equalTo(container.snp.bottom).inset(16)
         }
@@ -93,4 +115,9 @@ class ForayDetailView: UIView {
         itemImageView.image = image
     }
 
+    @objc
+    private func onShareButton() {
+        onAction?(.onShare)
+    }
+
 }
diff --git a/foray/Scenes/ForayDetailViewController.swift b/foray/Scenes/ForayDetailViewController.swift
index 52aa6b8..24de38f 100644
--- a/foray/Scenes/ForayDetailViewController.swift
+++ b/foray/Scenes/ForayDetailViewController.swift
@@ -13,10 +13,19 @@ class ForayDetailViewController: UIViewController, HasCustomView, Coordinated {
     typealias CoordinatorType = ForayCoordinator
     
     var coordinator: ForayCoordinator?
-    
+    private var item: PenguinItemViewModel?
+
     override func viewDidLoad() {
         super.viewDidLoad()
         self.title = "Details"
+
+        customView.onAction = { [weak self] (action) in
+            guard let self = self, let item = self.item else { return }
+            switch action {
+            case .onShare:
+                self.coordinator?.share(item: item)
+            }
+        }
     }
     
     override func loadView() {
@@ -24,6 +33,7 @@ class ForayDetailViewController: UIViewController, HasCustomView, Coordinated {
     }
     
     public func setDetails(item: PenguinItemViewModel) {
+        self.item = item
         let image: UIImage
         var description: String = "Type: "
         switch item.type {
-- 
cgit