[EC-259] Added Account Switching to Share extension on iOS (#1971)

* EC-259 Added Account switching on share extension on iOS, also improved performance for this and exception handling

* EC-259 code formatting

* EC-259 Added account switching to Share extension Send view

* EC-259 Fixed navigation on share extension when a forms page is already presented

* EC-259 Fix send text UI update when going from the iOS extension

* EC-259 Improved DateTimeViewModel with helper property to easily setup date and time at the same time and applied on usage

src/App/Pages/Send/SendAddEditPage.xaml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <pages:BaseContentPage
     xmlns="http://xamarin.com/schemas/2014/forms"
     xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
@@ -303,14 +303,14 @@
                                         <ColumnDefinition Width="*" />
                                     </Grid.ColumnDefinitions>
                                     <controls:ExtendedDatePicker
-                                        NullableDate="{Binding DeletionDate, Mode=TwoWay}"
+                                        NullableDate="{Binding DeletionDateTimeViewModel.Date, Mode=TwoWay}"
                                         Format="d"
                                         IsEnabled="{Binding SendEnabled}"
                                         AutomationProperties.IsInAccessibleTree="True"
                                         AutomationProperties.Name="{u:I18n DeletionDate}"
                                         Grid.Column="0" />
                                     <controls:ExtendedTimePicker
-                                        NullableTime="{Binding DeletionTime, Mode=TwoWay}"
+                                        NullableTime="{Binding DeletionDateTimeViewModel.Time, Mode=TwoWay}"
                                         Format="t"
                                         IsEnabled="{Binding SendEnabled}"
                                         AutomationProperties.IsInAccessibleTree="True"
@@ -343,7 +343,7 @@
                                         <ColumnDefinition Width="*" />
                                     </Grid.ColumnDefinitions>
                                     <controls:ExtendedDatePicker
-                                        NullableDate="{Binding ExpirationDate, Mode=TwoWay}"
+                                        NullableDate="{Binding ExpirationDateTimeViewModel.Date, Mode=TwoWay}"
                                         PlaceHolder="mm/dd/yyyy"
                                         Format="d"
                                         IsEnabled="{Binding SendEnabled}"
@@ -351,7 +351,7 @@
                                         AutomationProperties.Name="{u:I18n ExpirationDate}"
                                         Grid.Column="0" />
                                     <controls:ExtendedTimePicker
-                                        NullableTime="{Binding ExpirationTime, Mode=TwoWay}"
+                                        NullableTime="{Binding ExpirationDateTimeViewModel.Time, Mode=TwoWay}"
                                         PlaceHolder="--:-- --"
                                         Format="t"
                                         IsEnabled="{Binding SendEnabled}"

src/App/Pages/Send/SendAddEditPage.xaml.cs

@@ -23,7 +23,6 @@ namespace Bit.App.Pages
         private AppOptions _appOptions;
         private SendAddEditPageViewModel _vm;
 
-        public Action OnClose { get; set; }
         public Action AfterSubmit { get; set; }
 
         public SendAddEditPage(
@@ -136,14 +135,7 @@ namespace Bit.App.Pages
 
         private async Task CloseAsync()
         {
-            if (OnClose is null)
-            {
-                await Navigation.PopModalAsync();
-            }
-            else
-            {
-                OnClose();
-            }
+            await Navigation.PopModalAsync();
         }
 
         protected override bool OnBackButtonPressed()

src/App/Pages/Send/SendAddEditPageViewModel.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using Bit.App.Abstractions;
+using Bit.App.Controls;
 using Bit.App.Resources;
 using Bit.App.Utilities;
 using Bit.Core;
@@ -23,7 +24,7 @@ namespace Bit.App.Pages
         private readonly IStateService _stateService;
         private readonly ISendService _sendService;
         private readonly ILogger _logger;
-        private bool _sendEnabled;
+        private bool _sendEnabled = true;
         private bool _canAccessPremium;
         private bool _emailVerified;
         private SendView _send;
@@ -33,11 +34,7 @@ namespace Bit.App.Pages
         private int _deletionDateTypeSelectedIndex;
         private int _expirationDateTypeSelectedIndex;
         private DateTime _simpleDeletionDateTime;
-        private DateTime _deletionDate;
-        private TimeSpan _deletionTime;
         private DateTime? _simpleExpirationDateTime;
-        private DateTime? _expirationDate;
-        private TimeSpan? _expirationTime;
         private bool _isOverridingPickers;
         private int? _maxAccessCount;
         private string[] _additionalSendProperties = new[]
@@ -89,8 +86,34 @@ namespace Bit.App.Pages
                 new KeyValuePair<string, string>(AppResources.ThirtyDays, AppResources.ThirtyDays),
                 new KeyValuePair<string, string>(AppResources.Custom, AppResources.Custom),
             };
+
+            DeletionDateTimeViewModel = new DateTimeViewModel(AppResources.DeletionDate, AppResources.DeletionTime);
+            ExpirationDateTimeViewModel = new DateTimeViewModel(AppResources.ExpirationDate, AppResources.ExpirationTime)
+            {
+                OnDateChanged = date =>
+                {
+                    if (!_isOverridingPickers && !ExpirationDateTimeViewModel.Time.HasValue)
+                    {
+                        // auto-set time to current time upon setting date
+                        ExpirationDateTimeViewModel.Time = DateTimeNow().TimeOfDay;
+                    }
+                },
+                OnTimeChanged = time =>
+                {
+                    if (!_isOverridingPickers && !ExpirationDateTimeViewModel.Date.HasValue)
+                    {
+                        // auto-set date to current date upon setting time
+                        ExpirationDateTimeViewModel.Date = DateTime.Today;
+                    }
+                },
+                DatePlaceholder = "mm/dd/yyyy",
+                TimePlaceholder = "--:-- --"
+            };
+
+            AccountSwitchingOverlayViewModel = new AccountSwitchingOverlayViewModel(_stateService, _messagingService, _logger);
         }
 
+        public AccountSwitchingOverlayViewModel AccountSwitchingOverlayViewModel { get; }
         public Command TogglePasswordCommand { get; set; }
         public Command ToggleOptionsCommand { get; set; }
         public string SendId { get; set; }
@@ -126,23 +149,14 @@ namespace Bit.App.Pages
                 }
             }
         }
-        public DateTime DeletionDate
-        {
-            get => _deletionDate;
-            set => SetProperty(ref _deletionDate, value);
-        }
-        public TimeSpan DeletionTime
-        {
-            get => _deletionTime;
-            set => SetProperty(ref _deletionTime, value);
-        }
         public bool ShowOptions
         {
             get => _showOptions;
             set => SetProperty(ref _showOptions, value,
                 additionalPropertyNames: new[]
                 {
-                    nameof(OptionsAccessilibityText)
+                    nameof(OptionsAccessilibityText),
+                    nameof(OptionsShowHideIcon)
                 });
         }
         public int ExpirationDateTypeSelectedIndex
@@ -156,28 +170,7 @@ namespace Bit.App.Pages
                 }
             }
         }
-        public DateTime? ExpirationDate
-        {
-            get => _expirationDate;
-            set
-            {
-                if (SetProperty(ref _expirationDate, value))
-                {
-                    ExpirationDateChanged();
-                }
-            }
-        }
-        public TimeSpan? ExpirationTime
-        {
-            get => _expirationTime;
-            set
-            {
-                if (SetProperty(ref _expirationTime, value))
-                {
-                    ExpirationTimeChanged();
-                }
-            }
-        }
+
         public int? MaxAccessCount
         {
             get => _maxAccessCount;
@@ -205,7 +198,7 @@ namespace Bit.App.Pages
         }
         public string FileName
         {
-            get => _fileName;
+            get => _fileName ?? AppResources.NoFileChosen;
             set
             {
                 if (SetProperty(ref _fileName, value))
@@ -240,10 +233,13 @@ namespace Bit.App.Pages
         public bool IsFile => Send?.Type == SendType.File;
         public bool ShowDeletionCustomPickers => EditMode || DeletionDateTypeSelectedIndex == 6;
         public bool ShowExpirationCustomPickers => EditMode || ExpirationDateTypeSelectedIndex == 7;
+        public DateTimeViewModel DeletionDateTimeViewModel { get; }
+        public DateTimeViewModel ExpirationDateTimeViewModel { get; }
         public string ShowPasswordIcon => ShowPassword ? BitwardenIcons.EyeSlash : BitwardenIcons.Eye;
         public string PasswordVisibilityAccessibilityText => ShowPassword ? AppResources.PasswordIsVisibleTapToHide : AppResources.PasswordIsNotVisibleTapToShow;
         public string FileTypeAccessibilityLabel => IsFile ? AppResources.FileTypeIsSelected : AppResources.FileTypeIsNotSelected;
         public string TextTypeAccessibilityLabel => IsText ? AppResources.TextTypeIsSelected : AppResources.TextTypeIsNotSelected;
+        public string OptionsShowHideIcon => ShowOptions ? BitwardenIcons.ChevronUp : BitwardenIcons.AngleDown;
 
         public async Task InitAsync()
         {
@@ -268,10 +264,8 @@ namespace Bit.App.Pages
                         return false;
                     }
                     Send = await send.DecryptAsync();
-                    DeletionDate = Send.DeletionDate.ToLocalTime();
-                    DeletionTime = DeletionDate.TimeOfDay;
-                    ExpirationDate = Send.ExpirationDate?.ToLocalTime();
-                    ExpirationTime = ExpirationDate?.TimeOfDay;
+                    DeletionDateTimeViewModel.DateTime = Send.DeletionDate.ToLocalTime();
+                    ExpirationDateTimeViewModel.DateTime = Send.ExpirationDate?.ToLocalTime();
                 }
                 else
                 {
@@ -280,8 +274,7 @@ namespace Bit.App.Pages
                     {
                         Type = Type.GetValueOrDefault(defaultType),
                     };
-                    _deletionDate = DateTimeNow().AddDays(7);
-                    _deletionTime = DeletionDate.TimeOfDay;
+                    DeletionDateTimeViewModel.DateTime = DateTimeNow().AddDays(7);
                     DeletionDateTypeSelectedIndex = 4;
                     ExpirationDateTypeSelectedIndex = 0;
                 }
@@ -305,23 +298,22 @@ namespace Bit.App.Pages
         public void ClearExpirationDate()
         {
             _isOverridingPickers = true;
-            ExpirationDate = null;
-            ExpirationTime = null;
+            ExpirationDateTimeViewModel.DateTime = null;
             _isOverridingPickers = false;
         }
 
         private void UpdateSendData()
         {
             // filename
-            if (Send.File != null && FileName != null)
+            if (Send.File != null && _fileName != null)
             {
-                Send.File.FileName = FileName;
+                Send.File.FileName = _fileName;
             }
 
             // deletion date
             if (ShowDeletionCustomPickers)
             {
-                Send.DeletionDate = DeletionDate.Date.Add(DeletionTime).ToUniversalTime();
+                Send.DeletionDate = DeletionDateTimeViewModel.DateTime.Value.ToUniversalTime();
             }
             else
             {
@@ -329,9 +321,9 @@ namespace Bit.App.Pages
             }
 
             // expiration date
-            if (ShowExpirationCustomPickers && ExpirationDate.HasValue && ExpirationTime.HasValue)
+            if (ShowExpirationCustomPickers && ExpirationDateTimeViewModel.DateTime.HasValue)
             {
-                Send.ExpirationDate = ExpirationDate.Value.Date.Add(ExpirationTime.Value).ToUniversalTime();
+                Send.ExpirationDate = ExpirationDateTimeViewModel.DateTime.Value.ToUniversalTime();
             }
             else if (_simpleExpirationDateTime.HasValue)
             {
@@ -484,7 +476,7 @@ namespace Bit.App.Pages
                     return;
                 }
 
-                if (Page is SendAddEditPage sendPage && sendPage.OnClose != null)
+                if (Page is SendAddOnlyPage sendPage && sendPage.OnClose != null)
                 {
                     sendPage.OnClose();
                     return;
@@ -625,24 +617,6 @@ namespace Bit.App.Pages
             }
         }
 
-        private void ExpirationDateChanged()
-        {
-            if (!_isOverridingPickers && !ExpirationTime.HasValue)
-            {
-                // auto-set time to current time upon setting date
-                ExpirationTime = DateTimeNow().TimeOfDay;
-            }
-        }
-
-        private void ExpirationTimeChanged()
-        {
-            if (!_isOverridingPickers && !ExpirationDate.HasValue)
-            {
-                // auto-set date to current date upon setting time
-                ExpirationDate = DateTime.Today;
-            }
-        }
-
         private void MaxAccessCountChanged()
         {
             Send.MaxAccessCount = _maxAccessCount;
@@ -666,5 +640,10 @@ namespace Bit.App.Pages
                 DateTimeKind.Local
             );
         }
+
+        internal void TriggerSendTextPropertyChanged()
+        {
+            Device.BeginInvokeOnMainThread(() => TriggerPropertyChanged(nameof(Send)));
+        }
     }
 }

src/App/Pages/Send/SendAddOnlyOptionsView.xaml

@@ -0,0 +1,183 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<ContentView
+    xmlns="http://xamarin.com/schemas/2014/forms"
+    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+    xmlns:pages="clr-namespace:Bit.App.Pages"
+    xmlns:u="clr-namespace:Bit.App.Utilities"
+    xmlns:controls="clr-namespace:Bit.App.Controls"
+    xmlns:effects="clr-namespace:Bit.App.Effects"
+    xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
+    x:DataType="pages:SendAddEditPageViewModel"
+    x:Class="Bit.App.Pages.SendAddOnlyOptionsView">
+    <ContentView.Resources>
+        <ResourceDictionary>
+            <u:InverseBoolConverter x:Key="inverseBool" />
+        </ResourceDictionary>
+    </ContentView.Resources>
+    <ContentView.Content>
+        <StackLayout>
+            <StackLayout
+                StyleClass="box-row"
+                Margin="0,10,0,0">
+                <Label
+                    Text="{u:I18n DeletionDate}"
+                    StyleClass="box-label" />
+                <Picker
+                    x:Name="_deletionDateTypePicker"
+                    ItemsSource="{Binding DeletionTypeOptions, Mode=OneTime}"
+                    SelectedIndex="{Binding DeletionDateTypeSelectedIndex}"
+                    IsEnabled="{Binding SendEnabled}"
+                    StyleClass="box-value"
+                    ItemDisplayBinding="{Binding Key}"
+                    ios:Picker.UpdateMode="WhenFinished"
+                    AutomationProperties.IsInAccessibleTree="True"
+                    AutomationProperties.Name="{u:I18n DeletionTime}" />
+                <controls:LazyDateTimePicker
+                    x:Name="_lazyDeletionDateTimePicker"
+                    BindingContext="{Binding DeletionDateTimeViewModel}"
+                    IsVisible="{Binding ShowDeletionCustomPickers}"
+                    Margin="0,5,0,0" />
+                <Label
+                    Text="{u:I18n DeletionDateInfo}"
+                    StyleClass="box-footer-label"
+                    Margin="0,5,0,0" />
+            </StackLayout>
+            <StackLayout StyleClass="box-row" Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n ExpirationDate}"
+                    StyleClass="box-label" />
+                <Picker
+                    x:Name="_expirationDateTypePicker"
+                    ItemsSource="{Binding ExpirationTypeOptions, Mode=OneTime}"
+                    SelectedIndex="{Binding ExpirationDateTypeSelectedIndex}"
+                    ItemDisplayBinding="{Binding Key}"
+                    ios:Picker.UpdateMode="WhenFinished"
+                    IsEnabled="{Binding SendEnabled}"
+                    StyleClass="box-value"
+                    AutomationProperties.IsInAccessibleTree="True"
+                    AutomationProperties.Name="{u:I18n ExpirationTime}" />
+                <controls:LazyDateTimePicker
+                    x:Name="_lazyExpirationDateTimePicker"
+                    BindingContext="{Binding ExpirationDateTimeViewModel}"
+                    IsVisible="{Binding ShowExpirationCustomPickers}"
+                    Margin="0,5,0,0" />
+                <Label
+                    Text="{u:I18n ExpirationDateInfo}"
+                    StyleClass="box-footer-label"
+                    HorizontalOptions="StartAndExpand"
+                    Margin="0,5,0,0" />
+            </StackLayout>
+            <StackLayout
+                StyleClass="box-row"
+                Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n MaximumAccessCount}"
+                    StyleClass="box-label" />
+                <StackLayout
+                    StyleClass="box-row"
+                    Orientation="Horizontal">
+                    <Entry
+                        Text="{Binding MaxAccessCount}"
+                        IsEnabled="{Binding SendEnabled}"
+                        StyleClass="box-value"
+                        Keyboard="Numeric"
+                        MaxLength="9"
+                        TextChanged="OnMaxAccessCountTextChanged"
+                        HorizontalOptions="FillAndExpand" />
+                    <controls:ExtendedStepper
+                        x:Name="_maxAccessCountStepper"
+                        Value="{Binding MaxAccessCount}"
+                        Maximum="999999999"
+                        IsEnabled="{Binding SendEnabled}"
+                        Margin="10,0,0,0" />
+                </StackLayout>
+                <Label
+                    Text="{u:I18n MaximumAccessCountInfo}"
+                    StyleClass="box-footer-label" />
+            </StackLayout>
+            <StackLayout
+                StyleClass="box-row"
+                Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n NewPassword}"
+                    StyleClass="box-label" />
+                <StackLayout Orientation="Horizontal">
+                    <Entry
+                        Text="{Binding NewPassword}"
+                        IsPassword="{Binding ShowPassword, Converter={StaticResource inverseBool}}"
+                        IsEnabled="{Binding SendEnabled}"
+                        StyleClass="box-value"
+                        IsSpellCheckEnabled="False"
+                        IsTextPredictionEnabled="False"
+                        HorizontalOptions="FillAndExpand" />
+                    <controls:IconButton
+                        IsEnabled="{Binding SendEnabled}"
+                        StyleClass="box-row-button, box-row-button-platform"
+                        Text="{Binding ShowPasswordIcon}"
+                        Command="{Binding TogglePasswordCommand}"
+                        Margin="10,0,0,0"
+                        AutomationProperties.IsInAccessibleTree="True"
+                        AutomationProperties.Name="{u:I18n ToggleVisibility}"
+                        AutomationProperties.HelpText="{Binding PasswordVisibilityAccessibilityText}" />
+                </StackLayout>
+                <Label
+                    Text="{u:I18n PasswordInfo}"
+                    StyleClass="box-footer-label"
+                    Margin="0,5,0,0" />
+            </StackLayout>
+            <StackLayout
+                StyleClass="box-row"
+                Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n Notes}"
+                    StyleClass="box-label" />
+                <Editor
+                    x:Name="_notesEditor"
+                    AutoSize="TextChanges"
+                    Text="{Binding Send.Notes}"
+                    IsEnabled="{Binding SendEnabled}"
+                    StyleClass="box-value"
+                    Margin="0,10,0,5"
+                    effects:ScrollEnabledEffect.IsScrollEnabled="false" >
+                    <Editor.Effects>
+                        <effects:ScrollEnabledEffect />
+                    </Editor.Effects>
+                </Editor>
+                <BoxView
+                    StyleClass="box-row-separator" />
+                <Label
+                    Text="{u:I18n NotesInfo}"
+                    StyleClass="box-footer-label"
+                    Margin="0,5,0,0" />
+            </StackLayout>
+            <StackLayout
+                StyleClass="box-row, box-row-switch"
+                Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n HideEmail}"
+                    StyleClass="box-label-regular"
+                    VerticalOptions="Center"
+                    HorizontalOptions="StartAndExpand" />
+                <Switch
+                    IsToggled="{Binding Send.HideEmail}"
+                    IsEnabled="{Binding DisableHideEmailControl, Converter={StaticResource inverseBool}}"
+                    HorizontalOptions="End"
+                    Margin="10,0,0,0" />
+            </StackLayout>
+            <StackLayout
+                StyleClass="box-row, box-row-switch"
+                Margin="0,5,0,0">
+                <Label
+                    Text="{u:I18n DisableSend}"
+                    StyleClass="box-label-regular"
+                    VerticalOptions="Center"
+                    HorizontalOptions="StartAndExpand" />
+                <Switch
+                    IsToggled="{Binding Send.Disabled}"
+                    IsEnabled="{Binding SendEnabled}"
+                    HorizontalOptions="End"
+                    Margin="10,0,0,0" />
+            </StackLayout>
+        </StackLayout>
+    </ContentView.Content>
+</ContentView>

src/App/Pages/Send/SendAddOnlyOptionsView.xaml.cs

@@ -0,0 +1,91 @@
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks;
+using Bit.App.Behaviors;
+using Xamarin.CommunityToolkit.UI.Views;
+using Xamarin.Forms;
+
+namespace Bit.App.Pages
+{
+    public partial class SendAddOnlyOptionsView : ContentView
+    {
+        public SendAddOnlyOptionsView()
+        {
+            InitializeComponent();
+        }
+
+        private SendAddEditPageViewModel ViewModel => BindingContext as SendAddEditPageViewModel;
+
+        public void SetMainScrollView(ScrollView scrollView)
+        {
+            _notesEditor.Behaviors.Add(new EditorPreventAutoBottomScrollingOnFocusedBehavior { ParentScrollView = scrollView });
+        }
+
+        private void OnMaxAccessCountTextChanged(object sender, TextChangedEventArgs e)
+        {
+            if (ViewModel is null)
+            {
+                return;
+            }
+
+            if (string.IsNullOrWhiteSpace(e.NewTextValue))
+            {
+                ViewModel.MaxAccessCount = null;
+                _maxAccessCountStepper.Value = 0;
+                return;
+            }
+            // accept only digits
+            if (!int.TryParse(e.NewTextValue, out int _))
+            {
+                ((Entry)sender).Text = e.OldTextValue;
+            }
+        }
+
+        protected override void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            base.OnPropertyChanged(propertyName);
+
+            if (propertyName == nameof(BindingContext)
+               &&
+               ViewModel != null)
+            {
+                ViewModel.PropertyChanged += ViewModel_PropertyChanged;
+            }
+        }
+
+        private void ViewModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
+        {
+            if (!_lazyDeletionDateTimePicker.IsLoaded
+                &&
+                e.PropertyName == nameof(SendAddEditPageViewModel.ShowDeletionCustomPickers)
+                &&
+                ViewModel.ShowDeletionCustomPickers)
+            {
+                _lazyDeletionDateTimePicker.LoadViewAsync();
+            }
+
+            if (!_lazyExpirationDateTimePicker.IsLoaded
+                &&
+                e.PropertyName == nameof(SendAddEditPageViewModel.ShowExpirationCustomPickers)
+                &&
+                ViewModel.ShowExpirationCustomPickers)
+            {
+                _lazyExpirationDateTimePicker.LoadViewAsync();
+            }
+        }
+    }
+
+    public class SendAddOnlyOptionsLazyView : LazyView<SendAddOnlyOptionsView>
+    {
+        public ScrollView MainScrollView { get; set; }
+
+        public override async ValueTask LoadViewAsync()
+        {
+            await base.LoadViewAsync();
+
+            if (Content is SendAddOnlyOptionsView optionsView)
+            {
+                optionsView.SetMainScrollView(MainScrollView);
+            }
+        }
+    }
+}

src/App/Pages/Send/SendAddOnlyPage.xaml

@@ -0,0 +1,190 @@
+<?xml version="1.0" encoding="utf-8"?>
+<pages:BaseContentPage
+    xmlns="http://xamarin.com/schemas/2014/forms"
+    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+    x:Class="Bit.App.Pages.SendAddOnlyPage"
+    xmlns:pages="clr-namespace:Bit.App.Pages"
+    xmlns:u="clr-namespace:Bit.App.Utilities"
+    xmlns:controls="clr-namespace:Bit.App.Controls"
+    xmlns:behaviors="clr-namespace:Bit.App.Behaviors"
+    xmlns:effects="clr-namespace:Bit.App.Effects"
+    x:DataType="pages:SendAddEditPageViewModel"
+    x:Name="_page"
+    Title="{Binding PageTitle}">
+    <ContentPage.BindingContext>
+        <pages:SendAddEditPageViewModel />
+    </ContentPage.BindingContext>
+
+    <ContentPage.ToolbarItems>
+        <!--Order matters here or the avatar's image won't be updated correctly, check iOS CustomNavigationRenderer for more info-->
+        <controls:ExtendedToolbarItem
+            x:Name="_accountAvatar"
+            IconImageSource="{Binding AvatarImageSource}"
+            Command="{Binding Source={x:Reference _accountListOverlay}, Path=ToggleVisibililtyCommand}"
+            Order="Primary"
+            Priority="-2"
+            UseOriginalImage="True"
+            AutomationProperties.IsInAccessibleTree="True"
+            AutomationProperties.Name="{u:I18n Account}" />
+        <ToolbarItem Text="{u:I18n Cancel}" Clicked="Close_Clicked" Order="Primary" Priority="-1" x:Name="_closeItem" />
+        <ToolbarItem Text="{u:I18n Save}" Clicked="Save_Clicked" Order="Primary" x:Name="_saveItem"/>
+    </ContentPage.ToolbarItems>
+
+    <ContentPage.Resources>
+        <ResourceDictionary>
+            <u:InverseBoolConverter x:Key="inverseBool" />
+        </ResourceDictionary>
+    </ContentPage.Resources>
+
+    <AbsoluteLayout>
+        <ScrollView
+            x:Name="_scrollView"
+            AbsoluteLayout.LayoutBounds="0, 0, 1, 1"
+            AbsoluteLayout.LayoutFlags="All">
+            <StackLayout x:Name="_mainContainer" StyleClass="box">
+                <Frame
+                    IsVisible="{Binding SendEnabled, Converter={StaticResource inverseBool}}"
+                    Padding="10"
+                    Margin="0, 12, 0, 0"
+                    HasShadow="False"
+                    BackgroundColor="Transparent"
+                    BorderColor="Accent">
+                    <Label
+                        Text="{u:I18n SendDisabledWarning}"
+                        StyleClass="text-muted, text-sm, text-bold"
+                        HorizontalTextAlignment="Center" />
+                </Frame>
+                <Frame
+                    IsVisible="{Binding SendOptionsPolicyInEffect}"
+                    Padding="10"
+                    Margin="0, 12, 0, 0"
+                    HasShadow="False"
+                    BackgroundColor="Transparent"
+                    BorderColor="Accent">
+                    <Label
+                        Text="{u:I18n SendOptionsPolicyInEffect}"
+                        StyleClass="text-muted, text-sm, text-bold"
+                        HorizontalTextAlignment="Center" />
+                </Frame>
+                <StackLayout StyleClass="box-row">
+                    <Label
+                        Text="{u:I18n Name}"
+                        StyleClass="box-label" />
+                    <Entry
+                        x:Name="_nameEntry"
+                        Text="{Binding Send.Name}"
+                        IsEnabled="{Binding SendEnabled}"
+                        StyleClass="box-value" />
+                    <Label
+                        Text="{u:I18n NameInfo}"
+                        StyleClass="box-footer-label"
+                        Margin="0,5,0,0" />
+                </StackLayout>
+                <StackLayout
+                    StyleClass="box-row"
+                    IsVisible="{Binding IsFile}">
+                    <Label
+                        Text="{u:I18n TypeFile}"
+                        StyleClass="box-label" />
+                    <StackLayout
+                        StyleClass="box-row">
+                        <Label
+                            Text="{Binding FileName}"
+                            LineBreakMode="CharacterWrap"
+                            StyleClass="text-sm, text-muted"
+                            HorizontalOptions="FillAndExpand"
+                            HorizontalTextAlignment="Center" />
+                        <Label
+                            Margin="0, 5, 0, 0"
+                            Text="{u:I18n MaxFileSize}"
+                            StyleClass="text-sm, text-muted"
+                            HorizontalOptions="FillAndExpand"
+                            HorizontalTextAlignment="Center" />
+                    </StackLayout>
+                </StackLayout>
+                <StackLayout
+                    StyleClass="box-row"
+                    IsVisible="{Binding IsText}">
+                    <Label
+                        Text="{u:I18n TypeText}"
+                        StyleClass="box-label" />
+                    <Editor
+                        x:Name="_textEditor"
+                        AutoSize="TextChanges"
+                        Text="{Binding Send.Text.Text}"
+                        IsEnabled="{Binding SendEnabled}"
+                        StyleClass="box-value"
+                        Margin="{Binding EditorMargins}" 
+                        effects:ScrollEnabledEffect.IsScrollEnabled="false" >
+                        <Editor.Behaviors>
+                            <behaviors:EditorPreventAutoBottomScrollingOnFocusedBehavior ParentScrollView="{x:Reference _scrollView}" />
+                        </Editor.Behaviors>
+                        <Editor.Effects>
+                            <effects:ScrollEnabledEffect />
+                        </Editor.Effects>
+                    </Editor>
+                    <BoxView
+                        StyleClass="box-row-separator" />
+                    <Label
+                        Text="{u:I18n TypeTextInfo}"
+                        StyleClass="box-footer-label"
+                        Margin="0,5,0,10" />
+                    <StackLayout
+                        StyleClass="box-row, box-row-switch"
+                        Margin="0,10,0,0">
+                        <Label
+                            Text="{u:I18n HideTextByDefault}"
+                            StyleClass="box-label-regular"
+                            VerticalOptions="Center"
+                            HorizontalOptions="StartAndExpand" />
+                        <Switch
+                            IsToggled="{Binding Send.Text.Hidden}"
+                            IsEnabled="{Binding SendEnabled}"
+                            HorizontalOptions="End"
+                            Margin="10,0,0,0" />
+                    </StackLayout>
+                </StackLayout>
+                <StackLayout
+                    StyleClass="box-row, box-row-switch">
+                    <Label
+                        Text="{Binding ShareOnSaveText}"
+                        StyleClass="box-label-regular"
+                        VerticalOptions="Center"
+                        HorizontalOptions="StartAndExpand" />
+                    <Switch
+                        IsToggled="{Binding ShareOnSave}"
+                        IsEnabled="{Binding SendEnabled}"
+                        HorizontalOptions="End"
+                        Margin="10,0,0,0" />
+                </StackLayout>
+                <StackLayout
+                    Orientation="Horizontal"
+                    Spacing="0"
+                    AutomationProperties.IsInAccessibleTree="True"
+                    AutomationProperties.Name="{Binding OptionsAccessilibityText}">
+                    <StackLayout.GestureRecognizers>
+                        <TapGestureRecognizer Tapped="OptionsHeader_Tapped" />
+                    </StackLayout.GestureRecognizers>
+                    <Label
+                        Text="{u:I18n Options}"
+                        TextColor="{DynamicResource PrimaryColor}"
+                        Margin="0,0,5,0"
+                        AutomationProperties.IsInAccessibleTree="False"/>
+                    <controls:IconLabel
+                        Text="{Binding OptionsShowHideIcon}"
+                        TextColor="{DynamicResource PrimaryColor}"
+                        AutomationProperties.IsInAccessibleTree="False"/>
+                </StackLayout>
+                <pages:SendAddOnlyOptionsLazyView x:Name="_lazyOptionsView" IsVisible="{Binding ShowOptions}" />
+            </StackLayout>
+        </ScrollView>
+        
+        <controls:AccountSwitchingOverlayView
+            x:Name="_accountListOverlay"
+            AbsoluteLayout.LayoutBounds="0, 0, 1, 1"
+            AbsoluteLayout.LayoutFlags="All"
+            LongPressAccountEnabled="False"
+            BindingContext="{Binding AccountSwitchingOverlayViewModel}"/>
+    </AbsoluteLayout>
+    
+</pages:BaseContentPage>

src/App/Pages/Send/SendAddOnlyPage.xaml.cs

@@ -0,0 +1,178 @@
+using System;
+using System.Threading.Tasks;
+using Bit.App.Models;
+using Bit.App.Utilities;
+using Bit.Core.Abstractions;
+using Bit.Core.Enums;
+using Bit.Core.Utilities;
+using Xamarin.Forms;
+
+namespace Bit.App.Pages
+{
+    /// <summary>
+    /// This is a version of <see cref="SendAddEditPage"/> that is reduced for adding only and adapted
+    /// for performance for iOS Share extension.
+    /// </summary>
+    /// <remarks>
+    /// This should NOT be used in Android.
+    /// </remarks>
+    public partial class SendAddOnlyPage : BaseContentPage
+    {
+        private readonly IVaultTimeoutService _vaultTimeoutService;
+        private readonly LazyResolve<ILogger> _logger = new LazyResolve<ILogger>("logger");
+
+        private AppOptions _appOptions;
+        private SendAddEditPageViewModel _vm;
+
+        public Action OnClose { get; set; }
+        public Action AfterSubmit { get; set; }
+
+        public SendAddOnlyPage(
+            AppOptions appOptions = null,
+            string sendId = null,
+            SendType? type = null)
+        {
+            if (appOptions?.IosExtension != true)
+            {
+                throw new InvalidOperationException(nameof(SendAddOnlyPage) + " is only prepared to be used in iOS share extension");
+            }
+
+            _vaultTimeoutService = ServiceContainer.Resolve<IVaultTimeoutService>("vaultTimeoutService");
+            _appOptions = appOptions;
+            InitializeComponent();
+            _vm = BindingContext as SendAddEditPageViewModel;
+            _vm.Page = this;
+            _vm.SendId = sendId;
+            _vm.Type = appOptions?.CreateSend?.Item1 ?? type;
+
+            if (_vm.IsText)
+            {
+                _nameEntry.ReturnType = ReturnType.Next;
+                _nameEntry.ReturnCommand = new Command(() => _textEditor.Focus());
+            }
+        }
+
+        protected override async void OnAppearing()
+        {
+            base.OnAppearing();
+
+            try
+            {
+                if (!await AppHelpers.IsVaultTimeoutImmediateAsync())
+                {
+                    await _vaultTimeoutService.CheckVaultTimeoutAsync();
+                }
+                if (await _vaultTimeoutService.IsLockedAsync())
+                {
+                    return;
+                }
+                await _vm.InitAsync();
+
+                if (!await _vm.LoadAsync())
+                {
+                    await CloseAsync();
+                    return;
+                }
+
+                _accountAvatar?.OnAppearing();
+                await Device.InvokeOnMainThreadAsync(async () => _vm.AvatarImageSource = await GetAvatarImageSourceAsync());
+
+                await HandleCreateRequest();
+                if (string.IsNullOrWhiteSpace(_vm.Send?.Name))
+                {
+                    RequestFocus(_nameEntry);
+                }
+                AdjustToolbar();
+            }
+            catch (Exception ex)
+            {
+                _logger.Value.Exception(ex);
+                await CloseAsync();
+            }
+        }
+
+        protected override void OnDisappearing()
+        {
+            base.OnDisappearing();
+            _accountAvatar?.OnDisappearing();
+        }
+
+        private async Task CloseAsync()
+        {
+            if (OnClose is null)
+            {
+                await Navigation.PopModalAsync();
+            }
+            else
+            {
+                OnClose();
+            }
+        }
+
+        private async void Save_Clicked(object sender, EventArgs e)
+        {
+            if (DoOnce())
+            {
+                var submitted = await _vm.SubmitAsync();
+                if (submitted)
+                {
+                    AfterSubmit?.Invoke();
+                }
+            }
+        }
+
+        private async void Close_Clicked(object sender, EventArgs e)
+        {
+            if (DoOnce())
+            {
+                await CloseAsync();
+            }
+        }
+
+        private void AdjustToolbar()
+        {
+            _saveItem.IsEnabled = _vm.SendEnabled;
+        }
+
+        private Task HandleCreateRequest()
+        {
+            if (_appOptions?.CreateSend == null)
+            {
+                return Task.CompletedTask;
+            }
+
+            _vm.IsAddFromShare = true;
+            _vm.CopyInsteadOfShareAfterSaving = _appOptions.CopyInsteadOfShareAfterSaving;
+
+            var name = _appOptions.CreateSend.Item2;
+            _vm.Send.Name = name;
+
+            var type = _appOptions.CreateSend.Item1;
+            if (type == SendType.File)
+            {
+                _vm.FileData = _appOptions.CreateSend.Item3;
+                _vm.FileName = name;
+            }
+            else
+            {
+                var text = _appOptions.CreateSend.Item4;
+                _vm.Send.Text.Text = text;
+                _vm.TriggerSendTextPropertyChanged();
+            }
+            _appOptions.CreateSend = null;
+
+            return Task.CompletedTask;
+        }
+
+        void OptionsHeader_Tapped(object sender, EventArgs e)
+        {
+            _vm.ToggleOptionsCommand.Execute(null);
+
+            if (!_lazyOptionsView.IsLoaded)
+            {
+                _lazyOptionsView.MainScrollView = _scrollView;
+                _lazyOptionsView.LoadViewAsync();
+            }
+        }
+    }
+}