public static void UpdateContentLayout(this UI.Xaml.Controls.Button mauiButton, Button button)
{
// If the Content isn't the StackPanel setup by Maui.Core then
// The user has set a custom Content or the content isn't a mix of text/images
if (mauiButton.Content is not StackPanel container)
{
return;
}
var image = mauiButton.GetContent <UI.Xaml.Controls.Image>();
var textBlock = mauiButton.GetContent <UI.Xaml.Controls.TextBlock>();
// If either of these are null then the user has taken control of the content
// and we don't know how to apply our changes
if (image == null || textBlock == null)
{
return;
}
container.Children.Clear();
var layout = button.ContentLayout;
var spacing = layout.Spacing;
switch (layout.Position)
{
case Button.ButtonContentLayout.ImagePosition.Top:
container.Orientation = Orientation.Vertical;
image.Margin = WinUIHelpers.CreateThickness(0, 0, 0, spacing);
container.Children.Add(image);
container.Children.Add(textBlock);
break;
case Button.ButtonContentLayout.ImagePosition.Bottom:
container.Orientation = Orientation.Vertical;
image.Margin = WinUIHelpers.CreateThickness(0, spacing, 0, 0);
container.Children.Add(textBlock);
container.Children.Add(image);
break;
case Button.ButtonContentLayout.ImagePosition.Right:
container.Orientation = Orientation.Horizontal;
image.Margin = WinUIHelpers.CreateThickness(spacing, 0, 0, 0);
container.Children.Add(textBlock);
container.Children.Add(image);
break;
default:
// Defaults to image on the left
container.Orientation = Orientation.Horizontal;
image.Margin = WinUIHelpers.CreateThickness(0, 0, spacing, 0);
container.Children.Add(image);
container.Children.Add(textBlock);
break;
}
}
internal void UpdateHeaderInsets()
{
double inset = 10;
if (ShellContext.IsPaneToggleButtonVisible)
{
inset += 45;
}
if (Windows.Foundation.Metadata.ApiInformation.IsPropertyPresent("Microsoft.UI.Xaml.Controls.NavigationView", "IsBackButtonVisible"))
{
if (ShellContext.IsBackButtonVisible != Microsoft.UI.Xaml.Controls.NavigationViewBackButtonVisible.Collapsed &&
ShellContext.IsBackEnabled)
{
inset += 45;
}
}
_HeaderArea.Padding = WinUIHelpers.CreateThickness(inset, 0, 0, 0);
}
public ShellItemView(ShellView shellContext)
{
_ = shellContext ?? throw new ArgumentNullException(nameof(shellContext));
ShellContext = shellContext;
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Star)
});
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
_Title = new TextBlock()
{
Style = Resources["SubtitleTextBlockStyle"] as UwpStyle,
VerticalAlignment = VerticalAlignment.Center,
TextTrimming = TextTrimming.CharacterEllipsis,
TextWrapping = TextWrapping.NoWrap
};
_HeaderArea = new UwpGrid()
{
Height = 40, Padding = WinUIHelpers.CreateThickness(10, 0, 10, 0)
};
_HeaderArea.ColumnDefinitions.Add(new UwpColumnDefinition()
{
Width = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Star)
});
_HeaderArea.ColumnDefinitions.Add(new UwpColumnDefinition()
{
Width = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
_HeaderArea.Children.Add(_Title);
Children.Add(_HeaderArea);
_Toolbar = new ItemsControl()
{
ItemTemplate = UwpApplication.Current.Resources["ShellToolbarItemTemplate"] as UwpDataTemplate,
ItemsPanel = UwpApplication.Current.Resources["ShellToolbarItemsPanelTemplate"] as ItemsPanelTemplate,
};
SetColumn(_Toolbar, 1);
_HeaderArea.Children.Add(_Toolbar);
SectionView = shellContext.CreateShellSectionView();
SetRow(SectionView, 1);
Children.Add(SectionView);
_BottomBar = new UwpGrid()
{
HorizontalAlignment = HorizontalAlignment.Center
};
_BottomBarArea = new WBorder()
{
Child = _BottomBar
};
SetRow(_BottomBarArea, 2);
Children.Add(_BottomBarArea);
}
