more device actions

src/Android/Services/DeviceActionService.cs

@@ -1,10 +1,13 @@
-using Bit.App.Abstractions;
+using System.Threading.Tasks;
+using Android.App;
+using Bit.App.Abstractions;
 using Plugin.CurrentActivity;
 
 namespace Bit.Droid.Services
 {
     public class DeviceActionService : IDeviceActionService
     {
+        private ProgressDialog _progressDialog;
         private Android.Widget.Toast _toast;
 
         public void Toast(string text, bool longDuration = false)
@@ -31,5 +34,29 @@ namespace Bit.Droid.Services
             }
             return launchIntent != null;
         }
+
+        public async Task ShowLoadingAsync(string text)
+        {
+            if(_progressDialog != null)
+            {
+                await HideLoadingAsync();
+            }
+            var activity = (MainActivity)CrossCurrentActivity.Current.Activity;
+            _progressDialog = new ProgressDialog(activity);
+            _progressDialog.SetMessage(text);
+            _progressDialog.SetCancelable(false);
+            _progressDialog.Show();
+        }
+
+        public Task HideLoadingAsync()
+        {
+            if(_progressDialog != null)
+            {
+                _progressDialog.Dismiss();
+                _progressDialog.Dispose();
+                _progressDialog = null;
+            }
+            return Task.FromResult(0);
+        }
     }
 }

src/App/Abstractions/IDeviceActionService.cs

@@ -1,8 +1,12 @@
-namespace Bit.App.Abstractions
+using System.Threading.Tasks;
+
+namespace Bit.App.Abstractions
 {
     public interface IDeviceActionService
     {
         void Toast(string text, bool longDuration = false);
         bool LaunchApp(string appName);
+        Task ShowLoadingAsync(string text);
+        Task HideLoadingAsync();
     }
 }

src/iOS.Core/Views/Toast.cs

@@ -0,0 +1,143 @@
+using Foundation;
+using System;
+using UIKit;
+
+namespace Bit.iOS.Core.Views
+{
+    public class Toast : UIView
+    {
+        private NSTimer _dismissTimer;
+        private NSLayoutConstraint _heightConstraint;
+        private NSLayoutConstraint _leftMarginConstraint;
+        private NSLayoutConstraint _rightMarginConstraint;
+        private NSLayoutConstraint _bottomMarginConstraint;
+
+        public Toast(string text)
+            : base(CoreGraphics.CGRect.FromLTRB(0, 0, 320, 38))
+        {
+            TranslatesAutoresizingMaskIntoConstraints = false;
+            BackgroundColor = UIColor.DarkGray.ColorWithAlpha(0.9f);
+            Layer.CornerRadius = 15;
+            Layer.MasksToBounds = true;
+
+            MessageLabel = new UILabel
+            {
+                TranslatesAutoresizingMaskIntoConstraints = false,
+                TextColor = UIColor.White,
+                Font = UIFont.SystemFontOfSize(14),
+                BackgroundColor = UIColor.Clear,
+                LineBreakMode = UILineBreakMode.WordWrap,
+                TextAlignment = UITextAlignment.Center,
+                Lines = 0,
+                Text = text
+            };
+
+            AddSubview(MessageLabel);
+
+            var hMessageConstraints = NSLayoutConstraint.FromVisualFormat("H:|-5-[messageLabel]-5-|", 0, new NSDictionary(),
+                NSDictionary.FromObjectsAndKeys(new NSObject[] { MessageLabel },
+                    new NSObject[] { new NSString("messageLabel") })
+            );
+
+            var vMessageConstraints = NSLayoutConstraint.FromVisualFormat("V:|-0-[messageLabel]-0-|", 0, new NSDictionary(),
+                NSDictionary.FromObjectsAndKeys(new NSObject[] { MessageLabel },
+                    new NSObject[] { new NSString("messageLabel") })
+            );
+
+            AddConstraints(hMessageConstraints);
+            AddConstraints(vMessageConstraints);
+
+            AddGestureRecognizer(new UITapGestureRecognizer(() => Dismiss(false)));
+        }
+
+        public bool Dismissed { get; set; }
+        public Action DismissCallback { get; set; }
+        public TimeSpan Duration { get; set; } = TimeSpan.FromSeconds(3);
+        public UILabel MessageLabel { get; set; }
+        public nfloat LeftMargin { get; set; } = 5;
+        public nfloat RightMargin { get; set; } = 5;
+        public nfloat BottomMargin { get; set; } = 5;
+        public nfloat Height { get; set; } = 38;
+
+        public void Show()
+        {
+            if(Superview != null)
+            {
+                return;
+            }
+
+            _dismissTimer = NSTimer.CreateScheduledTimer(Duration, x => Dismiss());
+            LayoutIfNeeded();
+
+            var localSuperView = UIApplication.SharedApplication.KeyWindow;
+            if(localSuperView != null)
+            {
+                localSuperView.AddSubview(this);
+
+                _heightConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Height,
+                    NSLayoutRelation.GreaterThanOrEqual, null, NSLayoutAttribute.NoAttribute, 1, Height);
+
+                _leftMarginConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Left, NSLayoutRelation.Equal,
+                    localSuperView, NSLayoutAttribute.Left, 1, LeftMargin);
+
+                _rightMarginConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Right, NSLayoutRelation.Equal,
+                    localSuperView, NSLayoutAttribute.Right, 1, -RightMargin);
+
+                _bottomMarginConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal,
+                    localSuperView, NSLayoutAttribute.Bottom, 1, -BottomMargin);
+
+                // Avoid the "UIView-Encapsulated-Layout-Height" constraint conflicts
+                // http://stackoverflow.com/questions/25059443/what-is-nslayoutconstraint-uiview-encapsulated-layout-height-and-how-should-i
+                _leftMarginConstraint.Priority = 999;
+                _rightMarginConstraint.Priority = 999;
+
+                AddConstraint(_heightConstraint);
+                localSuperView.AddConstraint(_leftMarginConstraint);
+                localSuperView.AddConstraint(_rightMarginConstraint);
+                localSuperView.AddConstraint(_bottomMarginConstraint);
+
+                ShowWithAnimation();
+            }
+            else
+            {
+                Console.WriteLine("Toast needs a keyWindows to display.");
+            }
+        }
+
+        public void Dismiss(bool animated = true)
+        {
+            if(Dismissed)
+            {
+                return;
+            }
+
+            Dismissed = true;
+            _dismissTimer?.Invalidate();
+            _dismissTimer = null;
+
+            if(!animated)
+            {
+                RemoveFromSuperview();
+                DismissCallback?.Invoke();
+                return;
+            }
+
+            SetNeedsLayout();
+            Animate(0.3f, 0, UIViewAnimationOptions.CurveEaseIn, () => { Alpha = 0; }, () =>
+            {
+                RemoveFromSuperview();
+                DismissCallback?.Invoke();
+            });
+        }
+
+        private void ShowWithAnimation()
+        {
+            Alpha = 0;
+            SetNeedsLayout();
+            _bottomMarginConstraint.Constant = -BottomMargin;
+            _leftMarginConstraint.Constant = LeftMargin;
+            _rightMarginConstraint.Constant = -RightMargin;
+            AnimateNotify(0.3f, 0, 0.7f, 5f, UIViewAnimationOptions.CurveEaseInOut, () => { Alpha = 1; }, null);
+        }
+    }
+}

src/iOS.Core/iOS.Core.csproj

@@ -49,6 +49,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Services\CryptoPrimitiveService.cs" />
     <Compile Include="Services\KeyChainStorageService.cs" />
+    <Compile Include="Views\Toast.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core\Core.csproj">

src/iOS/Services/DeviceActionService.cs

@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Bit.App.Abstractions;
+using Bit.iOS.Core.Views;
+using CoreGraphics;
+using Foundation;
+using UIKit;
+
+namespace Bit.iOS.Services
+{
+    public class DeviceActionService : IDeviceActionService
+    {
+        private Toast _toast;
+        private UIAlertController _progressAlert;
+
+        public bool LaunchApp(string appName)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void Toast(string text, bool longDuration = false)
+        {
+            if(!_toast?.Dismissed ?? false)
+            {
+                _toast.Dismiss(false);
+            }
+            _toast = new Toast(text)
+            {
+                Duration = TimeSpan.FromSeconds(longDuration ? 5 : 3)
+            };
+            if(TabBarVisible())
+            {
+                _toast.BottomMargin = 55;
+            }
+            _toast.Show();
+            _toast.DismissCallback = () =>
+            {
+                _toast?.Dispose();
+                _toast = null;
+            };
+        }
+
+        public Task ShowLoadingAsync(string text)
+        {
+            if(_progressAlert != null)
+            {
+                HideLoadingAsync().GetAwaiter().GetResult();
+            }
+
+            var result = new TaskCompletionSource<int>();
+
+            var loadingIndicator = new UIActivityIndicatorView(new CGRect(10, 5, 50, 50));
+            loadingIndicator.HidesWhenStopped = true;
+            loadingIndicator.ActivityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray;
+            loadingIndicator.StartAnimating();
+
+            _progressAlert = UIAlertController.Create(null, text, UIAlertControllerStyle.Alert);
+            _progressAlert.View.TintColor = UIColor.Black;
+            _progressAlert.View.Add(loadingIndicator);
+
+            var vc = GetPresentedViewController();
+            vc?.PresentViewController(_progressAlert, false, () => result.TrySetResult(0));
+            return result.Task;
+        }
+
+        public Task HideLoadingAsync()
+        {
+            var result = new TaskCompletionSource<int>();
+            if(_progressAlert == null)
+            {
+                result.TrySetResult(0);
+            }
+            _progressAlert.DismissViewController(false, () => result.TrySetResult(0));
+            _progressAlert.Dispose();
+            _progressAlert = null;
+            return result.Task;
+        }
+
+        private UIViewController GetPresentedViewController()
+        {
+            var window = UIApplication.SharedApplication.KeyWindow;
+            var vc = window.RootViewController;
+            while(vc.PresentedViewController != null)
+            {
+                vc = vc.PresentedViewController;
+            }
+            return vc;
+        }
+
+        private bool TabBarVisible()
+        {
+            var vc = GetPresentedViewController();
+            return vc != null && (vc is UITabBarController ||
+                (vc.ChildViewControllers?.Any(c => c is UITabBarController) ?? false));
+        }
+    }
+}

src/iOS/iOS.csproj

@@ -92,6 +92,7 @@
   <ItemGroup>
     <Compile Include="Main.cs" />
     <Compile Include="AppDelegate.cs" />
+    <Compile Include="Services\DeviceActionService.cs" />
     <None Include="Entitlements.plist" />
     <None Include="Info.plist" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -171,7 +172,5 @@
       <IsWatchApp>false</IsWatchApp>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
+  <ItemGroup />
-    <Folder Include="Services\" />
-  </ItemGroup>
 </Project>