Email and Share icons

Although at the time of writing, Email will crash on 15

App/Backend/History/ShareableURL.swift

@@ -0,0 +1,39 @@
+//
+//  ShareableURL.swift
+//  App
+//
+//  Created by James Magahern on 4/28/21.
+//
+
+import Foundation
+
+class ShareableURL : NSObject, UIActivityItemSource
+{
+    let url: URL
+    let title: String
+    let favicon: UIImage?
+    
+    init(url: URL, title: String, favicon: UIImage?) {
+        self.url = url
+        self.title = title
+        self.favicon = favicon
+        
+        super.init()
+    }
+    
+    func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
+        return self.url
+    }
+    
+    func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivity.ActivityType?) -> Any? {
+        return self.url
+    }
+    
+    func activityViewController(_ activityViewController: UIActivityViewController, subjectForActivityType activityType: UIActivity.ActivityType?) -> String {
+        return self.title
+    }
+    
+    func activityViewController(_ activityViewController: UIActivityViewController, thumbnailImageForActivityType activityType: UIActivity.ActivityType?, suggestedSize size: CGSize) -> UIImage? {
+        return self.favicon
+    }
+}

App/Browser View/BrowserViewController.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import MessageUI
 import UIKit
 import UniformTypeIdentifiers
 
@@ -95,26 +96,8 @@ class BrowserViewController: UIViewController
         }), for: .touchUpInside)
         
         // Share button
-        toolbarController.shareButton.addAction(UIAction(handler: { [unowned self, toolbarController] _ in
-            if let url = self.webView.url {
-                let itemProvider = NSItemProvider(item: url as NSURL, typeIdentifier: UTType.url.identifier)
-                let config = UIActivityItemsConfiguration(itemProviders: [ itemProvider ])
-                config.metadataProvider = { metadataKey in
-                    switch metadataKey {
-                        case .title: return self.webView.title
-                    case .messageBody: return self.webView.title
-                        default: return nil
-                    }
-                }
-                
-                config.previewProvider = { index, intent, suggestedSize in
-                    NSItemProvider(item: self.tab.favicon, typeIdentifier: UTType.image.identifier)
-                }
-                
-                let activityController = UIActivityViewController(activityItemsConfiguration: config)
-                activityController.popoverPresentationController?.sourceView = toolbarController.shareButton
-                self.present(activityController, animated: true, completion: nil)
-            }
+        toolbarController.shareButton.addAction(UIAction(handler: { [unowned self] _ in
+            showShareSheetForCurrentURL(fromViewController: nil)
         }), for: .touchUpInside)
         
         // Script button
@@ -289,6 +272,11 @@ class BrowserViewController: UIViewController
                 documentControls.dismiss(animated: true, completion: nil)
             }, for: .touchUpInside)
             
+            // Email
+            documentControls.emailView.addAction(UIAction { [unowned self] _ in
+                composeEmailForCurrentURL(fromViewController: documentControls)
+            }, for: .touchUpInside)
+            
             // Settings
             documentControls.settingsView.addAction(UIAction { [unowned self] _ in
                 documentControls.dismiss(animated: false, completion: nil)
@@ -321,6 +309,40 @@ class BrowserViewController: UIViewController
         self.view = browserView
     }
     
+    internal func showShareSheetForCurrentURL(fromViewController: UIViewController?) {
+        guard let url = self.webView.url else { return }
+        
+        let shareableURL = ShareableURL(
+            url: url,
+            title: webView.title ?? url.absoluteString,
+            favicon: tab.favicon
+        )
+        
+        let activityController = UIActivityViewController(activityItems: [ shareableURL ], applicationActivities: nil)
+        activityController.popoverPresentationController?.sourceView = toolbarController.shareButton
+        
+        if let fromViewController = fromViewController {
+            fromViewController.dismiss(animated: false, completion: nil)
+        }
+        
+        self.present(activityController, animated: true, completion: nil)
+    }
+    
+    internal func composeEmailForCurrentURL(fromViewController: UIViewController?) {
+        guard let url = self.webView.url else { return }
+        
+        let composeController = MFMailComposeViewController()
+        composeController.setSubject(webView.title ?? url.absoluteString)
+        composeController.setMessageBody(url.absoluteString, isHTML: false)
+        composeController.mailComposeDelegate = self
+        
+        if let fromViewController = fromViewController {
+            fromViewController.dismiss(animated: false, completion: nil)
+        }
+        
+        present(composeController, animated: true, completion: nil)
+    }
+    
     internal func showSettingsWindow() {
         #if targetEnvironment(macCatalyst)
         let userActivity = NSUserActivity(activityType: SessionActivityType.SettingsWindow.rawValue)
@@ -570,3 +592,10 @@ extension BrowserViewController: URLBarDelegate
         changingFocusToAutocompleteController = false
     }
 }
+
+extension BrowserViewController: MFMailComposeViewControllerDelegate
+{
+    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
+        controller.dismiss(animated: true, completion: nil)
+    }
+}

App/Document Controls UI/DocumentControlViewController.swift

@@ -17,6 +17,7 @@ class DocumentControlViewController: UIViewController
     let readabilityView = DocumentControlItemView()
     let darkModeView = DocumentControlItemView()
     let archiveView = DocumentControlItemView()
+    let emailView = DocumentControlItemView()
     
     var observations: [NSKeyValueObservation] = []
     
@@ -37,6 +38,9 @@ class DocumentControlViewController: UIViewController
         archiveView.label.text = "Archive.today"
         archiveView.imageView.image = UIImage(systemName: "shippingbox")
         
+        emailView.label.text = "Email"
+        emailView.imageView.image = UIImage(systemName: "envelope")
+        
         if darkModeEnabled {
             darkModeView.label.text = "Disable Dark Mode"
         } else {
@@ -47,6 +51,8 @@ class DocumentControlViewController: UIViewController
         
         documentControlsView.stackView.addArrangedSubview(navigationControlView)
         documentControlsView.stackView.addArrangedSubview(fontSizeAdjustView)
+        
+        documentControlsView.stackView.addArrangedSubview(emailView)
         documentControlsView.stackView.addArrangedSubview(findOnPageControlView)
         documentControlsView.stackView.addArrangedSubview(darkModeView)
         documentControlsView.stackView.addArrangedSubview(readabilityView)