[refactor] Refactor the PDF view cell

[feat] Add support for PDF caching
[release] Bump version 1.8.5

Desk360.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name = "Desk360"
-    s.version = "1.8.4"
+    s.version = "1.8.5"
     s.summary = "Desk360 iOS SDK"
     s.description = <<-DESC
     Desk360 iOS SDK [WIP]

Sources/Desk360+Config.swift

@@ -45,6 +45,10 @@ public extension Desk360.Config {
             return image.withRenderingMode(.alwaysOriginal)
         }
 
+        static func image(withName name: String) -> UIImage? {
+            createImage(resources: "Images/\(name)")
+        }
+
 		static var desk360Logo: UIImage = {
 			guard let path = Desk360.Config.bundle?.path(forResource: "Images/desk360Logo", ofType: "png") else { return UIImage() }
 			guard let image = UIImage(contentsOfFile: path) else { return UIImage() }

Sources/Desk360.swift

@@ -82,6 +82,7 @@ public typealias TicketsHandler = ((Result<[Ticket], Error>) -> Void)
     /// - Parameter properties: DESK360 configuration properties.
 	@objc public init(properties: Desk360Properties) {
 		super.init()
+        listenForAppLifeCycleEvents()
         Desk360.properties = properties
 		Desk360.appVersion = Desk360.getAppVersion()
 		Desk360.sdkVersion = Desk360.getSdkVersion()
@@ -265,6 +266,18 @@ public typealias TicketsHandler = ((Result<[Ticket], Error>) -> Void)
 
 private extension Desk360 {
 
+    func listenForAppLifeCycleEvents() {
+        NotificationCenter.default.addObserver(self, selector: #selector(changeNotificationStatus), name: UIApplication.willTerminateNotification, object: nil)
+
+        NotificationCenter.default.addObserver(self, selector: #selector(changeNotificationStatus), name: UIApplication.willResignActiveNotification, object: nil)
+    }
+
+    @objc func changeNotificationStatus() {
+        if #available(iOS 11.0, *) {
+            PDFDocumentCache.clear()
+        }
+    }
+
     static func getAppVersion() -> String {
         guard let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String else {
             return "0.0.0"

Sources/Networking/Models/Attachment.swift

@@ -66,6 +66,11 @@ public struct AttachObject {
     var url: String
     var name: String
     var type: String
+
+    var image: UIImage? {
+        guard let fileType = name.split(separator: ".").last else { return nil }
+        return Desk360.Config.Images.image(withName: String(fileType))
+    }
 }
 
 extension AttachObject: Codable {

Sources/Scenes/Conversation/ConversationViewController.swift

@@ -154,6 +154,7 @@ final class ConversationViewController: UIViewController, Layouting, UITableView
 		}
 		let cell = tableView.dequeueReusableCell(ReceiverMessageTableViewCell.self)
         cell.clearCell()
+        cell.delegate = self
         cell.configure(for: request.messages[indexPath.row], indexPath, attachment, hasAttach: hasAttach)
 		return cell
 	}
@@ -169,7 +170,7 @@ extension ConversationViewController: InputViewDelegate {
 	func inputView(_ view: InputView, didTapSendButton button: UIButton, withText text: String) {
         chatInputView.setLoading(true)
 		isAddedMessage = true
-		addMessage(text, to: request)
+        addMessage(text.condenseNewlines.condenseWhitespacs, to: request)
 	}
 
     func inputView(_ view: InputView, didTapAttachButton button: UIButton) {
@@ -325,6 +326,7 @@ extension ConversationViewController: InputViewDelegate {
     func manageAttachView() {
         guard files.count <= 5 else { return }
         chatInputView.attachmentView.append(attachementsData: files)
+        chatInputView.setSendButton()
     }
 }
 
@@ -738,6 +740,16 @@ extension ConversationViewController: KeyboardObserving {
 
 }
 
+
+extension ConversationViewController: ReceiverMessageTableViewCellDelegate {
+
+    func didTapPdfFile(_ file: AttachObject) {
+        if #available(iOS 11.0, *) {
+            navigationController?.pushViewController(PDFPreviewViewController(file: file), animated: true)
+        }
+    }
+}
+
 struct FileData: Equatable {
     var name: String
     var data: Data
@@ -870,11 +882,3 @@ extension String {
         return label.frame.size
     }
 }
-
-extension UIScrollView {
-   func scrollToBottom(animated: Bool) {
-     if self.contentSize.height < self.bounds.size.height { return }
-     let bottomOffset = CGPoint(x: 0, y: self.contentSize.height - self.bounds.size.height)
-     self.setContentOffset(bottomOffset, animated: animated)
-  }
-}

Sources/Scenes/Conversation/FileView.swift

@@ -0,0 +1,54 @@
+//
+//  FileView.swift
+//  Desk360
+//
+//  Created by Ali Ammar Hilal on 8.11.2021.
+//
+
+import UIKit
+
+/// A UIView based calss to render different files representations on the secren.
+final class FileView: UIView {
+
+    /// The file icon.
+    lazy var icon: UIImageView = {
+        let view = UIImageView()
+        view.pinSize(.init(width: 38, height: 36))
+        return view
+    }()
+
+    /// The file name.
+    lazy var fileName: UILabel = {
+        let label = UILabel()
+        label.font = .systemFont(ofSize: 14)
+        label.textColor = Colors.ticketDetailChatReceiverTextColor
+        return label
+    }()
+
+    /// The file object of type `AttachObject` to be rendered.
+    var file: AttachObject? {
+        didSet {
+            guard let file = file else { return }
+            fileName.text = file.name
+            icon.image = file.image?.withRenderingMode(.alwaysOriginal)
+        }
+    }
+
+    /// A call back closure to be triggered when atappping on the file name or icon.
+    var onFileSelected: ((AttachObject) -> Void)?
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(didTapFile)))
+        let stack: UIView = .hStack(alignment: .center, distribution: .fill, spacing: 8, [icon, fileName])
+        addSubview(stack)
+        stack.pinToSuperviewEdges(padding: .init(top: 10, left: 0, bottom: 10, right: 12))
+    }
+
+    @objc private func didTapFile() {
+        guard let file = file else {
+            return
+        }
+        onFileSelected?(file)
+    }
+}