FeaturedPhotoControl.xaml

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<UserControl
    x:Class="PhotoSharingApp.Universal.Controls.FeaturedPhotoControl"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:PhotoSharingApp.Universal.Controls"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:valueConverters="using:PhotoSharingApp.Universal.ValueConverters"
    xmlns:controls="using:PhotoSharingApp.Universal.Controls"
    xmlns:core="using:Microsoft.Xaml.Interactions.Core"
    xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
    xmlns:stateTriggers="using:PhotoSharingApp.Universal.StateTriggers"
    mc:Ignorable="d"
    d:DesignHeight="300"
    d:DesignWidth="400"
    x:Name="controlRoot">
    
    <UserControl.Resources>
        <valueConverters:NullToVisibilityConverter x:Key="NullToVisibilityConverter" />
        <valueConverters:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
    </UserControl.Resources>

    <Grid Background="{ThemeResource SystemControlBackgroundChromeMediumLowBrush}"
          Visibility="{Binding Path=PhotoSource, ElementName=controlRoot, Converter={StaticResource NullToVisibilityConverter}}">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="3*" />
            <ColumnDefinition Width="4*" />
        </Grid.ColumnDefinitions>

        <Grid Grid.Column="0" x:Name="photoDetailsContainer" Margin="{Binding PhotoDetailsContainerMargin, ElementName=controlRoot}">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="2.5*" />
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="3*" />
                <RowDefinition Height="5*" />
                <RowDefinition Height="3*" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>

            <Viewbox Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center">
                <TextBlock x:Name="featuredText" x:Uid="FeaturedPhotoControl_FeaturedText" Text="Featured" Foreground="Black" FontWeight="Light" />
            </Viewbox>

            <Viewbox Margin="3" Grid.Column="1" Grid.Row="1">
                <controls:UserProfilePictureControl Source="{Binding PhotoSource.User.ProfilePictureUrl, ElementName=controlRoot}" Width="100" Height="100">
                    <interactivity:Interaction.Behaviors>
                        <core:EventTriggerBehavior EventName="Tapped">
                            <core:InvokeCommandAction
                                Command="{Binding UserSelectedCommand}"
                                CommandParameter="{Binding PhotoSource.User, ElementName=controlRoot}" />
                        </core:EventTriggerBehavior>
                    </interactivity:Interaction.Behaviors>
                </controls:UserProfilePictureControl>
            </Viewbox>

            <TextBlock Grid.Row="2" Grid.Column="1" MaxLines="2" HorizontalAlignment="Center" VerticalAlignment="Center"
                       Text="{Binding PhotoSource.Caption, ElementName=controlRoot}"
                       FontWeight="Thin" FontSize="{Binding CaptionFontSize, ElementName=controlRoot}" TextTrimming="WordEllipsis" 
                       Foreground="{ThemeResource SystemControlHighlightBaseMediumHighBrush}" TextWrapping="Wrap"
                       TextAlignment="Center">
            </TextBlock>
        </Grid>

        <Grid Grid.Column="1">
            <Image Source="{Binding PhotoSource.ImageUrl, ElementName=controlRoot}" Stretch="UniformToFill" VerticalAlignment="Stretch" />
            <Grid>
                <Grid.Background>
                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                        <GradientStop Color="#CC000000" Offset="1" />
                        <GradientStop Offset="0.647" />
                    </LinearGradientBrush>
                </Grid.Background>
            </Grid>
            <interactivity:Interaction.Behaviors>
                <core:EventTriggerBehavior EventName="Tapped">
                    <core:InvokeCommandAction
                            Command="{Binding DataContext.HeroImageSelectedCommand, ElementName=controlRoot}"
                            CommandParameter="{Binding PhotoSource, ElementName=controlRoot}" />
                </core:EventTriggerBehavior>
            </interactivity:Interaction.Behaviors>
        </Grid>


        <Viewbox Grid.Column="1" HorizontalAlignment="Right"
                 VerticalAlignment="Bottom" x:Name="goldButtonContainer">
            <controls:GoldButton Content="{Binding PhotoSource.GoldCount, ElementName=controlRoot}"
                                 Command="{Binding GiveGoldCommand}"
                                 IsEnabled="{Binding PhotoSource.CanGiveGold, ElementName=controlRoot}"
                                 CommandParameter="{Binding PhotoSource, ElementName=controlRoot}" />
        </Viewbox>
        
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup>
                <VisualState>
                    <VisualState.StateTriggers>
                        <AdaptiveTrigger MinWindowWidth="1300" />
                    </VisualState.StateTriggers>
                    <VisualState.Setters>
                        <Setter Target="goldButtonContainer.Height" Value="50" />
                        <Setter Target="goldButtonContainer.Width" Value="50" />
                        <Setter Target="goldButtonContainer.Margin" Value="0,0,12,12" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState>
                    <VisualState.StateTriggers>
                        <AdaptiveTrigger MinWindowWidth="900" />
                    </VisualState.StateTriggers>
                    <VisualState.Setters>
                        <Setter Target="goldButtonContainer.Height" Value="40" />
                        <Setter Target="goldButtonContainer.Width" Value="40" />
                        <Setter Target="goldButtonContainer.Margin" Value="0,0,12,12" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState>
                    <VisualState.StateTriggers>
                        <AdaptiveTrigger MinWindowWidth="700" />
                    </VisualState.StateTriggers>
                    <VisualState.Setters>
                        <Setter Target="goldButtonContainer.Height" Value="35" />
                        <Setter Target="goldButtonContainer.Width" Value="35" />
                        <Setter Target="goldButtonContainer.Margin" Value="0,0,6,6" />
                    </VisualState.Setters>
                </VisualState>
                <VisualState>
                    <VisualState.StateTriggers>
                        <AdaptiveTrigger MinWindowWidth="0" />
                    </VisualState.StateTriggers>
                    <VisualState.Setters>
                        <Setter Target="goldButtonContainer.Height" Value="25" />
                        <Setter Target="goldButtonContainer.Width" Value="25" />
                        <Setter Target="goldButtonContainer.Margin" Value="0,0,6,6" />
                    </VisualState.Setters>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
    </Grid>
</UserControl>