Wino-Mail/Wino.Mail/Views/MailListPage.xaml

<abstract:MailListPageAbstract
    x:Class="Wino.Views.MailListPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:abstract="using:Wino.Views.Abstract"
    xmlns:collections="using:CommunityToolkit.Mvvm.Collections"
    xmlns:controls="using:Wino.Controls"
    xmlns:converters="using:Wino.Converters"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:domain="using:Wino.Core.Domain"
    xmlns:enums="using:Wino.Core.Domain.Enums"
    xmlns:helpers="using:Wino.Helpers"
    xmlns:i="using:Microsoft.Xaml.Interactivity"
    xmlns:ic="using:Microsoft.Xaml.Interactions.Core"
    xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
    xmlns:listview="using:Wino.Controls.Advanced"
    xmlns:local="using:Wino.Behaviors"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:menuflyouts="using:Wino.MenuFlyouts"
    xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
    xmlns:selectors="using:Wino.Selectors"
    xmlns:toolkit="using:CommunityToolkit.WinUI.Controls"
    xmlns:toolkitExt="using:CommunityToolkit.WinUI"
    xmlns:viewModelData="using:Wino.Mail.ViewModels.Data"
    xmlns:wino="using:Wino"
    x:Name="root"
    SizeChanged="PageSizeChanged"
    mc:Ignorable="d">

    <Page.Resources>
        <CollectionViewSource
            x:Name="MailCollectionViewSource"
            IsSourceGrouped="True"
            Source="{x:Bind ViewModel.MailCollection.MailItems, Mode=OneWay}" />

        <Thickness x:Key="ExpanderHeaderPadding">0,0,0,0</Thickness>
        <Thickness x:Key="ExpanderChevronMargin">0,0,12,0</Thickness>
        <Thickness x:Key="ExpanderHeaderBorderThickness">0,0,0,0</Thickness>

        <SolidColorBrush x:Key="CardBackgroundFillColorDefaultBrush">Transparent</SolidColorBrush>
        <SolidColorBrush x:Key="CardBackgroundFillColorSecondaryBrush">Transparent</SolidColorBrush>
        <SolidColorBrush x:Key="ExpanderContentBorderBrush">Transparent</SolidColorBrush>

        <StaticResource x:Key="ExpanderContentBackground" ResourceKey="CardBackgroundFillColorSecondaryBrush" />
        <StaticResource x:Key="ExpanderHeaderBackground" ResourceKey="CardBackgroundFillColorDefaultBrush" />

        <SolidColorBrush x:Key="SystemControlRevealFocusVisualBrush" Color="#FF4C4A48" />
        <SolidColorBrush x:Key="SystemControlFocusVisualSecondaryBrush" Color="#FFFFFFFF" />

        <!--  Header Templates  -->
        <DataTemplate x:Key="MailGroupHeaderDefaultTemplate" x:DataType="collections:IReadOnlyObservableGroup">
            <Grid
                Margin="2,2,6,2"
                AllowFocusOnInteraction="False"
                Background="{ThemeResource MailListHeaderBackgroundColor}"
                CornerRadius="6">
                <TextBlock
                    Padding="12"
                    VerticalAlignment="Center"
                    AllowFocusOnInteraction="False"
                    FontSize="13"
                    FontWeight="SemiBold"
                    Text="{x:Bind helpers:XamlHelpers.GetMailGroupDateString(Key)}" />
            </Grid>
        </DataTemplate>

        <!--  Swipe Items  -->
        <!--
            TODO: Temporarily disabled. WinUI2 - SwipeControl crash.
            https://github.com/microsoft/microsoft-ui-xaml/issues/2527
        -->

        <!--<muxc:SwipeItems x:Key="LeftSwipeItems" Mode="Execute">
            <muxc:SwipeItem BehaviorOnInvoked="Close"
                            Invoked="LeftSwipeItemInvoked"
                            Text="{x:Bind domain:Translator.MailOperation_Delete}">
                <muxc:SwipeItem.IconSource>
                    <controls:WinoFontIconSource Icon="Delete" />
                </muxc:SwipeItem.IconSource>
                <muxc:SwipeItem.Background>
                    <LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5">
                        <GradientStop Offset="0.0" Color="#FFF5A6A6" />
                        <GradientStop Offset="0.5" Color="#FFEF4444" />
                        <GradientStop Offset="1.0" Color="#FFF32525" />
                    </LinearGradientBrush>
                </muxc:SwipeItem.Background>
            </muxc:SwipeItem>
        </muxc:SwipeItems>

        -->

        <!--
        <muxc:SwipeItems x:Key="RightSwipeItems" Mode="Execute">
            <muxc:SwipeItem BehaviorOnInvoked="Close"
                            Invoked="RightSwipeItemInvoked"
                            Text="{x:Bind domain:Translator.MarkReadUnread}">
                <muxc:SwipeItem.IconSource>
                    <controls:WinoFontIconSource Icon="MarkRead" />
                </muxc:SwipeItem.IconSource>
            </muxc:SwipeItem>
        </muxc:SwipeItems>-->

        <!--  Single Mail Item Template  -->
        <DataTemplate x:Key="SingleMailItemTemplate" x:DataType="viewModelData:MailItemViewModel">
            <controls:MailItemDisplayInformationControl
                x:DefaultBindMode="OneWay"
                CenterHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.CenterHoverAction, Mode=OneWay}"
                ContextRequested="MailItemContextRequested"
                DisplayMode="{Binding ElementName=root, Path=ViewModel.PreferencesService.MailItemDisplayMode, Mode=OneWay}"
                HoverActionExecutedCommand="{Binding ElementName=root, Path=ViewModel.ExecuteHoverActionCommand}"
                IsAvatarVisible="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowSenderPicturesEnabled, Mode=OneWay}"
                IsCustomFocused="{x:Bind IsCustomFocused, Mode=OneWay}"
                IsHoverActionsEnabled="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsHoverActionsEnabled, Mode=OneWay}"
                LeftHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.LeftHoverAction, Mode=OneWay}"
                MailItem="{x:Bind MailCopy, Mode=OneWay}"
                Prefer24HourTimeFormat="{Binding ElementName=root, Path=ViewModel.PreferencesService.Prefer24HourTimeFormat, Mode=OneWay}"
                RightHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.RightHoverAction, Mode=OneWay}"
                ShowPreviewText="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowPreviewEnabled, Mode=OneWay}" />
        </DataTemplate>

        <!--  Single Mail Item Template for Threads  -->
        <DataTemplate x:Key="ThreadSingleMailItemTemplate" x:DataType="viewModelData:MailItemViewModel">
            <controls:MailItemDisplayInformationControl
                x:DefaultBindMode="OneWay"
                CenterHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.CenterHoverAction, Mode=OneWay}"
                ContextRequested="MailItemContextRequested"
                DisplayMode="{Binding ElementName=root, Path=ViewModel.PreferencesService.MailItemDisplayMode, Mode=OneWay}"
                FocusVisualMargin="8"
                FocusVisualPrimaryBrush="{StaticResource SystemControlRevealFocusVisualBrush}"
                FocusVisualPrimaryThickness="2"
                FocusVisualSecondaryBrush="{StaticResource SystemControlFocusVisualSecondaryBrush}"
                FocusVisualSecondaryThickness="1"
                HoverActionExecutedCommand="{Binding ElementName=root, Path=ViewModel.ExecuteHoverActionCommand}"
                IsAvatarVisible="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowSenderPicturesEnabled, Mode=OneWay}"
                IsCustomFocused="{x:Bind IsCustomFocused, Mode=OneWay}"
                IsHoverActionsEnabled="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsHoverActionsEnabled, Mode=OneWay}"
                LeftHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.LeftHoverAction, Mode=OneWay}"
                MailItem="{x:Bind MailCopy, Mode=OneWay}"
                Prefer24HourTimeFormat="{Binding ElementName=root, Path=ViewModel.PreferencesService.Prefer24HourTimeFormat, Mode=OneWay}"
                RightHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.RightHoverAction, Mode=OneWay}"
                ShowPreviewText="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowPreviewEnabled, Mode=OneWay}" />
        </DataTemplate>

        <!--  Mail Item Content Selector  -->
        <selectors:MailItemDisplaySelector x:Key="MailItemDisplaySelector" SingleMailItemTemplate="{StaticResource SingleMailItemTemplate}">
            <selectors:MailItemDisplaySelector.ThreadMailItemTemplate>
                <DataTemplate x:DataType="viewModelData:ThreadMailItemViewModel">
                    <controls:WinoExpander
                        x:Name="ThreadExpander"
                        HorizontalAlignment="Stretch"
                        HorizontalContentAlignment="Stretch"
                        IsExpanded="{x:Bind IsThreadExpanded, Mode=TwoWay}">
                        <controls:WinoExpander.Header>
                            <controls:MailItemDisplayInformationControl
                                x:DefaultBindMode="OneWay"
                                Background="Transparent"
                                BorderThickness="0"
                                CenterHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.CenterHoverAction, Mode=OneWay}"
                                ConnectedExpander="{Binding ElementName=ThreadExpander}"
                                ContextRequested="MailItemContextRequested"
                                DisplayMode="{Binding ElementName=root, Path=ViewModel.PreferencesService.MailItemDisplayMode, Mode=OneWay}"
                                DragStarting="ThreadHeaderDragStart"
                                DropCompleted="ThreadHeaderDragFinished"
                                HoverActionExecutedCommand="{Binding ElementName=root, Path=ViewModel.ExecuteHoverActionCommand}"
                                IsAvatarVisible="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowSenderPicturesEnabled, Mode=OneWay}"
                                IsHitTestVisible="True"
                                IsHoverActionsEnabled="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsHoverActionsEnabled, Mode=OneWay}"
                                IsThreadExpanded="{x:Bind IsThreadExpanded, Mode=TwoWay}"
                                IsThreadExpanderVisible="True"
                                LeftHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.LeftHoverAction, Mode=OneWay}"
                                MailItem="{x:Bind MailItem, Mode=OneWay}"
                                Prefer24HourTimeFormat="{Binding ElementName=root, Path=ViewModel.PreferencesService.Prefer24HourTimeFormat, Mode=OneWay}"
                                RightHoverAction="{Binding ElementName=root, Path=ViewModel.PreferencesService.RightHoverAction, Mode=OneWay}"
                                ShowPreviewText="{Binding ElementName=root, Path=ViewModel.PreferencesService.IsShowPreviewEnabled, Mode=OneWay}" />
                        </controls:WinoExpander.Header>
                        <controls:WinoExpander.Content>
                            <listview:WinoListView
                                x:Name="ThreadItemsList"
                                toolkitExt:ListViewExtensions.ItemContainerStretchDirection="Horizontal"
                                IsThreadListView="True"
                                ItemTemplate="{StaticResource ThreadSingleMailItemTemplate}"
                                ItemsSource="{x:Bind ThreadItems}"
                                ProcessKeyboardAccelerators="ProcessMailItemKeyboardAccelerator"
                                ScrollViewer.VerticalScrollBarVisibility="Hidden">
                                <ListView.ItemContainerTransitions>
                                    <TransitionCollection>
                                        <EdgeUIThemeTransition />
                                    </TransitionCollection>
                                </ListView.ItemContainerTransitions>
                            </listview:WinoListView>
                        </controls:WinoExpander.Content>
                    </controls:WinoExpander>
                </DataTemplate>
            </selectors:MailItemDisplaySelector.ThreadMailItemTemplate>
        </selectors:MailItemDisplaySelector>

        <SolidColorBrush x:Key="ButtonBackgroundDisabled">Transparent</SolidColorBrush>
    </Page.Resources>

    <wino:BasePage.ShellContent>
        <Grid>
            <!--  Hidden focus receiver...  -->
            <TextBox
                Grid.Column="1"
                HorizontalAlignment="Right"
                VerticalAlignment="Bottom"
                Opacity="0"
                Visibility="Collapsed" />

            <AutoSuggestBox
                x:Name="SearchBar"
                Margin="2,0,-2,0"
                VerticalAlignment="Center"
                BorderBrush="Transparent"
                GotFocus="SearchBoxFocused"
                LostFocus="SearchBarUnfocused"
                PlaceholderText="{x:Bind domain:Translator.SearchBarPlaceholder}"
                QueryIcon="Find"
                Text="{x:Bind ViewModel.SearchQuery, Mode=TwoWay}"
                TextChanged="SearchBar_TextChanged">
                <i:Interaction.Behaviors>
                    <ic:EventTriggerBehavior EventName="QuerySubmitted">
                        <ic:InvokeCommandAction Command="{x:Bind ViewModel.PerformSearchCommand}" />
                    </ic:EventTriggerBehavior>
                </i:Interaction.Behaviors>
            </AutoSuggestBox>
        </Grid>
    </wino:BasePage.ShellContent>

    <Grid x:Name="RootGrid">
        <Grid.ColumnDefinitions>
            <ColumnDefinition x:Name="MailListColumn" Width="{x:Bind ViewModel.MailListLength, Mode=OneWay, Converter={StaticResource GridLengthConverter}}" />
            <ColumnDefinition x:Name="RendererColumn" Width="*" />
        </Grid.ColumnDefinitions>

        <!--  Mail Items  -->
        <Border
            x:Name="MailListContainer"
            Grid.Column="0"
            Padding="5,5,5,0"
            HorizontalAlignment="Stretch"
            Background="{ThemeResource WinoContentZoneBackgroud}"
            BorderBrush="{StaticResource CardStrokeColorDefaultBrush}"
            BorderThickness="1"
            CornerRadius="7">
            <Grid x:Name="MailListGrid">
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>

                <!--  Action bar  -->
                <Grid
                    Margin="0,0,0,5"
                    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
                    CornerRadius="8"
                    Visibility="{x:Bind ViewModel.PreferencesService.IsMailListActionBarEnabled}">
                    <CommandBar
                        HorizontalAlignment="Left"
                        DefaultLabelPosition="Collapsed"
                        IsEnabled="{x:Bind helpers:XamlHelpers.CountToBooleanConverter(ViewModel.SelectedItemCount), Mode=OneWay}"
                        OverflowButtonVisibility="Auto">
                        <interactivity:Interaction.Behaviors>
                            <local:BindableCommandBarBehavior ItemClickedCommand="{x:Bind ViewModel.ExecuteTopBarActionCommand}" PrimaryCommands="{x:Bind ViewModel.ActionItems, Mode=OneWay}" />
                        </interactivity:Interaction.Behaviors>
                    </CommandBar>
                </Grid>

                <!--  Pivot + Sync + Multi Select  -->
                <Grid Grid.Row="1" Padding="0,0,0,6">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="*" />
                        <ColumnDefinition Width="Auto" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                    </Grid.RowDefinitions>

                    <!--  Select All Checkbox  -->
                    <CheckBox
                        x:Name="SelectAllCheckbox"
                        Grid.Row="1"
                        MinWidth="0"
                        Margin="8,0,0,0"
                        VerticalAlignment="Center"
                        Canvas.ZIndex="100"
                        Checked="SelectAllCheckboxChecked"
                        Unchecked="SelectAllCheckboxUnchecked"
                        Visibility="{x:Bind helpers:XamlHelpers.IsSelectionModeMultiple(MailListView.SelectionMode), Mode=OneWay}" />


                    <!--  Folders  -->
                    <toolkit:Segmented
                        Grid.Row="1"
                        Grid.Column="1"
                        ItemsSource="{x:Bind ViewModel.PivotFolders, Mode=OneWay}"
                        SelectedItem="{x:Bind ViewModel.SelectedFolderPivot, Mode=TwoWay}"
                        SelectionChanged="FolderPivotChanged"
                        Style="{StaticResource PivotSegmentedStyle}">
                        <toolkit:Segmented.ItemTemplate>
                            <DataTemplate x:DataType="viewModelData:FolderPivotViewModel">
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="{x:Bind FolderTitle}" />
                                    <TextBlock
                                        Margin="4,0,0,0"
                                        FontWeight="SemiBold"
                                        Visibility="{x:Bind ShouldDisplaySelectedItemCount, Mode=OneWay}">
                                        <Run Text="(" /><Run Text="{x:Bind SelectedItemCount, Mode=OneWay}" /><Run Text=")" />
                                    </TextBlock>
                                </StackPanel>
                            </DataTemplate>
                        </toolkit:Segmented.ItemTemplate>
                    </toolkit:Segmented>

                    <!--  Sync + Multi Select + Filtering  -->
                    <StackPanel
                        Grid.Row="1"
                        Grid.Column="2"
                        Orientation="Horizontal">
                        <Button
                            Width="36"
                            Height="36"
                            Background="Transparent"
                            BorderThickness="0"
                            Command="{x:Bind ViewModel.SyncFolderCommand}"
                            IsEnabled="{x:Bind ViewModel.CanSynchronize, Mode=OneWay}"
                            ToolTipService.ToolTip="{x:Bind domain:Translator.Buttons_Sync}">
                            <controls:WinoFontIcon FontSize="14" Icon="Sync" />
                        </Button>
                        <ToggleButton
                            x:Name="SelectionModeToggle"
                            Width="36"
                            Height="36"
                            Background="Transparent"
                            BorderThickness="0"
                            Checked="SelectionModeToggleChecked"
                            IsChecked="{x:Bind ViewModel.IsMultiSelectionModeEnabled, Mode=TwoWay}"
                            ToolTipService.ToolTip="{x:Bind domain:Translator.Buttons_Multiselect}"
                            Unchecked="SelectionModeToggleUnchecked">
                            <controls:WinoFontIcon FontSize="16" Icon="MultiSelect" />
                        </ToggleButton>
                        <muxc:DropDownButton
                            Height="36"
                            Background="Transparent"
                            BorderThickness="0"
                            Content="{x:Bind ViewModel.SelectedFilterOption.Title, Mode=OneWay}"
                            ToolTipService.ToolTip="Filter">
                            <muxc:DropDownButton.Flyout>
                                <menuflyouts:FilterMenuFlyout
                                    x:Name="FilterMenuFlyout"
                                    AreOpenCloseAnimationsEnabled="True"
                                    FilterOptions="{x:Bind ViewModel.FilterOptions, Mode=OneTime}"
                                    Placement="Bottom"
                                    SelectedFilterChangedCommand="{x:Bind ViewModel.SelectedFilterChangedCommand}"
                                    SelectedFilterOption="{x:Bind ViewModel.SelectedFilterOption, Mode=TwoWay}"
                                    SelectedSortingOption="{x:Bind ViewModel.SelectedSortingOption, Mode=TwoWay}"
                                    SelectedSortingOptionChangedCommand="{x:Bind ViewModel.SelectedSortingChangedCommand}"
                                    SortingOptions="{x:Bind ViewModel.SortingOptions, Mode=OneTime}" />
                            </muxc:DropDownButton.Flyout>
                        </muxc:DropDownButton>
                    </StackPanel>

                    <muxc:InfoBar
                        Title="{x:Bind domain:Translator.InfoBarTitle_SynchronizationDisabledFolder}"
                        Grid.Row="0"
                        Grid.ColumnSpan="3"
                        IsClosable="True"
                        IsOpen="{x:Bind ViewModel.IsFolderSynchronizationEnabled, Converter={StaticResource ReverseBooleanConverter}, Mode=OneWay}"
                        Message="{x:Bind domain:Translator.InfoBarMessage_SynchronizationDisabledFolder}"
                        Severity="Informational">
                        <muxc:InfoBar.ActionButton>
                            <Button Command="{x:Bind ViewModel.EnableFolderSynchronizationCommand}" Content="Enable" />
                        </muxc:InfoBar.ActionButton>
                    </muxc:InfoBar>
                </Grid>

                <!--  No items createria  -->
                <StackPanel
                    x:Name="NoItemsPanel"
                    Grid.Row="2"
                    Grid.RowSpan="3"
                    HorizontalAlignment="Stretch"
                    VerticalAlignment="Center"
                    Spacing="10">

                    <Viewbox
                        Width="48"
                        Opacity="0.4"
                        Visibility="{x:Bind ViewModel.IsEmpty, Mode=OneWay}">
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                    </Viewbox>

                    <TextBlock
                        HorizontalAlignment="Center"
                        FontSize="20"
                        FontWeight="ExtraLight"
                        Foreground="{ThemeResource InformationBrush}"
                        Opacity="0.4"
                        Text="{x:Bind domain:Translator.NoMessageCrieteria}"
                        Visibility="{x:Bind ViewModel.IsCriteriaFailed, Mode=OneWay}" />

                    <TextBlock
                        HorizontalAlignment="Center"
                        FontSize="20"
                        FontWeight="ExtraLight"
                        Foreground="{ThemeResource InformationBrush}"
                        Opacity="0.4"
                        Text="{x:Bind domain:Translator.NoMessageEmptyFolder}"
                        Visibility="{x:Bind ViewModel.IsFolderEmpty, Mode=OneWay}" />

                    <muxc:ProgressRing
                        x:Name="LoadingProgressIndicator"
                        Grid.Row="2"
                        HorizontalAlignment="Center"
                        VerticalAlignment="Center"
                        x:Load="{x:Bind ViewModel.IsProgressRing, Mode=OneWay}"
                        Canvas.ZIndex="999" />
                </StackPanel>

                <!--  Mail Items  -->
                <muxc:RefreshContainer
                    Grid.Row="2"
                    RefreshRequested="PullToRefreshRequested"
                    Visibility="{x:Bind ViewModel.IsEmpty, Converter={StaticResource ReverseBooleanToVisibilityConverter}, Mode=OneWay}">
                    <SemanticZoom x:Name="SemanticZoomContainer" CanChangeViews="{x:Bind ViewModel.PreferencesService.IsSemanticZoomEnabled, Mode=OneWay}">
                        <SemanticZoom.ZoomedInView>
                            <listview:WinoListView
                                x:Name="MailListView"
                                HorizontalAlignment="Stretch"
                                HorizontalContentAlignment="Stretch"
                                toolkitExt:ListViewExtensions.ItemContainerStretchDirection="Horizontal"
                                toolkitExt:ScrollViewerExtensions.VerticalScrollBarMargin="0"
                                ItemDeletedCommand="{x:Bind ViewModel.ExecuteMailOperationCommand}"
                                ItemTemplateSelector="{StaticResource MailItemDisplaySelector}"
                                ItemsSource="{x:Bind MailCollectionViewSource.View, Mode=OneWay}"
                                LoadMoreCommand="{x:Bind ViewModel.LoadMoreItemsCommand}"
                                ProcessKeyboardAccelerators="ProcessMailItemKeyboardAccelerator"
                                ScrollViewer.VerticalScrollBarVisibility="Auto">
                                <ListView.ItemContainerTransitions>
                                    <TransitionCollection>
                                        <AddDeleteThemeTransition />
                                    </TransitionCollection>
                                </ListView.ItemContainerTransitions>
                                <ListView.ItemsPanel>
                                    <ItemsPanelTemplate>
                                        <ItemsStackPanel AreStickyGroupHeadersEnabled="True" />
                                    </ItemsPanelTemplate>
                                </ListView.ItemsPanel>
                                <ListView.Resources>
                                    <ResourceDictionary>
                                        <Style BasedOn="{StaticResource MailListHeaderStyle}" TargetType="ListViewHeaderItem" />
                                    </ResourceDictionary>
                                </ListView.Resources>
                                <ListView.GroupStyle>
                                    <GroupStyle HeaderTemplate="{StaticResource MailGroupHeaderDefaultTemplate}" HidesIfEmpty="True" />
                                </ListView.GroupStyle>
                            </listview:WinoListView>
                        </SemanticZoom.ZoomedInView>
                        <SemanticZoom.ZoomedOutView>
                            <ListView
                                x:Name="ZoomOutList"
                                x:Load="{x:Bind helpers:XamlHelpers.ReverseBoolConverter(SemanticZoomContainer.IsZoomedInViewActive), Mode=OneWay}"
                                ItemsSource="{x:Bind MailCollectionViewSource.View.CollectionGroups}">
                                <ListView.Resources>
                                    <Style TargetType="ListViewItem">
                                        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
                                        <Setter Property="VerticalContentAlignment" Value="Stretch" />
                                        <Setter Property="Margin" Value="0,12" />
                                        <Setter Property="Padding" Value="0" />
                                    </Style>
                                </ListView.Resources>
                                <ListView.ItemTemplate>
                                    <DataTemplate x:DataType="ICollectionViewGroup">
                                        <Grid Background="{ThemeResource MailListHeaderBackgroundColor}" CornerRadius="4">
                                            <TextBlock
                                                Margin="12,0"
                                                HorizontalAlignment="Center"
                                                VerticalAlignment="Center"
                                                FontWeight="SemiBold"
                                                Text="{x:Bind helpers:XamlHelpers.GetMailGroupDateString(Group)}" />
                                        </Grid>
                                    </DataTemplate>
                                </ListView.ItemTemplate>
                            </ListView>
                        </SemanticZoom.ZoomedOutView>
                    </SemanticZoom>
                </muxc:RefreshContainer>


                <!--  Update Info Bar  -->
                <controls:WinoInfoBar
                    Title="{x:Bind ViewModel.BarTitle, Mode=OneWay}"
                    Grid.Row="2"
                    Margin="0,0,0,5"
                    VerticalAlignment="Bottom"
                    AnimationType="SlideFromBottomToTop"
                    DismissInterval="2"
                    IsClosable="False"
                    IsOpen="{x:Bind ViewModel.IsBarOpen, Mode=TwoWay}"
                    Message="{x:Bind ViewModel.BarMessage, Mode=OneWay}"
                    Severity="{x:Bind helpers:XamlHelpers.InfoBarSeverityConverter(ViewModel.BarSeverity), Mode=OneWay}" />

            </Grid>
        </Border>
        <toolkit:PropertySizer
            x:Name="MailListSizer"
            Grid.Column="1"
            Width="16"
            HorizontalAlignment="Left"
            Binding="{x:Bind ViewModel.MailListLength, Mode=TwoWay}"
            Canvas.ZIndex="20"
            ManipulationCompleted="MailListSizerManipulationCompleted"
            Maximum="{x:Bind ViewModel.MaxMailListLength, Mode=OneWay}"
            Minimum="270"
            Opacity="0" />

        <Grid
            x:Name="RenderingGrid"
            Grid.Column="1"
            Margin="7,0,0,0">
            <!--  Mail Rendering Frame  -->
            <Frame x:Name="RenderingFrame" IsNavigationStackEnabled="False" />

            <!--  No Mail Selected Message  -->
            <StackPanel
                x:Name="NoMailSelectedPanel"
                HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Opacity="0.5"
                Spacing="6">

                <controls:WinoFontIcon FontSize="80" Icon="Mail" />

                <TextBlock
                    HorizontalAlignment="Center"
                    FontSize="31"
                    Style="{StaticResource SubheaderTextBlockStyle}"
                    Text="{x:Bind ViewModel.SelectedMessageText, Mode=OneWay}" />
            </StackPanel>
        </Grid>

        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="LayoutStates">
                <VisualState x:Name="BothPanelsNoMailSelected">
                    <VisualState.Setters>
                        <Setter Target="RenderingFrame.Visibility" Value="Collapsed" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState x:Name="BothPanelsMailSelected">
                    <VisualState.Setters>
                        <Setter Target="NoMailSelectedPanel.Visibility" Value="Collapsed" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState x:Name="NarrowMailList">
                    <VisualState.Setters>
                        <Setter Target="MailListContainer.(Grid.ColumnSpan)" Value="2" />
                        <Setter Target="MailListSizer.Visibility" Value="Collapsed" />
                        <Setter Target="RenderingGrid.Visibility" Value="Collapsed" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState x:Name="NarrowRenderer">
                    <VisualState.Setters>
                        <Setter Target="RenderingGrid.(Grid.Column)" Value="0" />
                        <Setter Target="RenderingGrid.(Grid.ColumnSpan)" Value="2" />
                        <Setter Target="RenderingGrid.Margin" Value="0" />
                        <Setter Target="RenderingGrid.Visibility" Value="Visible" />
                        <Setter Target="NoMailSelectedPanel.Visibility" Value="Collapsed" />
                        <Setter Target="MailListSizer.Visibility" Value="Collapsed" />
                        <Setter Target="MailListContainer.Visibility" Value="Collapsed" />
                    </VisualState.Setters>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
    </Grid>
</abstract:MailListPageAbstract>