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David H. Friedel Jr.
2026-01-17 01:18:35 +00:00
parent d8bdf5472f
commit b1749b1347
3 changed files with 424 additions and 3 deletions
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328
Handlers/ShellHandler.cs
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@@ -4,6 +4,7 @@
using Microsoft.Maui.Controls;
using Microsoft.Maui.Handlers;
using Microsoft.Maui.Graphics;
using Microsoft.Maui.Platform.Linux.Hosting;
using SkiaSharp;
namespace Microsoft.Maui.Platform.Linux.Handlers;
@@ -13,12 +14,27 @@ namespace Microsoft.Maui.Platform.Linux.Handlers;
/// </summary>
public partial class ShellHandler : ViewHandler<Shell, SkiaShell>
{
private bool _isUpdatingFlyoutPresented;
public static IPropertyMapper<Shell, ShellHandler> Mapper = new PropertyMapper<Shell, ShellHandler>(ViewHandler.ViewMapper)
{
[nameof(Shell.FlyoutIsPresented)] = MapFlyoutIsPresented,
[nameof(Shell.FlyoutBehavior)] = MapFlyoutBehavior,
[nameof(Shell.FlyoutWidth)] = MapFlyoutWidth,
[nameof(Shell.FlyoutBackgroundColor)] = MapFlyoutBackgroundColor,
[nameof(Shell.FlyoutBackground)] = MapFlyoutBackground,
[nameof(Shell.BackgroundColor)] = MapBackgroundColor,
[nameof(Shell.FlyoutHeaderBehavior)] = MapFlyoutHeaderBehavior,
[nameof(Shell.FlyoutHeader)] = MapFlyoutHeader,
[nameof(Shell.FlyoutFooter)] = MapFlyoutFooter,
[nameof(Shell.Items)] = MapItems,
[nameof(Shell.CurrentItem)] = MapCurrentItem,
[nameof(Shell.Title)] = MapTitle,
};
public static CommandMapper<Shell, ShellHandler> CommandMapper = new(ViewHandler.ViewCommandMapper)
{
["GoToAsync"] = MapGoToAsync,
};
public ShellHandler() : base(Mapper, CommandMapper)
@@ -41,11 +57,21 @@ public partial class ShellHandler : ViewHandler<Shell, SkiaShell>
platformView.FlyoutIsPresentedChanged += OnFlyoutIsPresentedChanged;
platformView.Navigated += OnNavigated;
// Store reference to MAUI Shell for callbacks
platformView.MauiShell = VirtualView;
// Set up content renderer
platformView.ContentRenderer = RenderShellContent;
platformView.ColorRefresher = RefreshShellColors;
// Subscribe to Shell navigation events
if (VirtualView != null)
{
VirtualView.Navigating += OnShellNavigating;
VirtualView.Navigated += OnShellNavigated;
// Initial sync of shell items
SyncShellItems();
}
}
@@ -53,6 +79,9 @@ public partial class ShellHandler : ViewHandler<Shell, SkiaShell>
{
platformView.FlyoutIsPresentedChanged -= OnFlyoutIsPresentedChanged;
platformView.Navigated -= OnNavigated;
platformView.MauiShell = null;
platformView.ContentRenderer = null;
platformView.ColorRefresher = null;
if (VirtualView != null)
{
@@ -65,10 +94,20 @@ public partial class ShellHandler : ViewHandler<Shell, SkiaShell>
private void OnFlyoutIsPresentedChanged(object? sender, EventArgs e)
{
// Sync flyout state to virtual view
if (VirtualView is null || PlatformView is null || _isUpdatingFlyoutPresented) return;
try
{
_isUpdatingFlyoutPresented = true;
VirtualView.FlyoutIsPresented = PlatformView.FlyoutIsPresented;
}
finally
{
_isUpdatingFlyoutPresented = false;
}
}
private void OnNavigated(object? sender, ShellNavigationEventArgs e)
private void OnNavigated(object? sender, Platform.ShellNavigationEventArgs e)
{
// Handle platform navigation events
}
@@ -90,4 +129,289 @@ public partial class ShellHandler : ViewHandler<Shell, SkiaShell>
{
Console.WriteLine($"[ShellHandler] Shell Navigated to: {e.Current?.Location}");
}
private void SyncShellItems()
{
if (PlatformView is null || VirtualView is null || MauiContext is null) return;
// Clear existing sections
foreach (var section in PlatformView.Sections.ToList())
{
PlatformView.RemoveSection(section);
}
// Add shell items as sections
foreach (var item in VirtualView.Items)
{
if (item is FlyoutItem flyoutItem)
{
var section = new Platform.ShellSection
{
Route = flyoutItem.Route ?? flyoutItem.Title ?? "",
Title = flyoutItem.Title ?? "",
IconPath = flyoutItem.Icon?.ToString()
};
// Add shell contents as items
foreach (var shellSection in flyoutItem.Items)
{
foreach (var content in shellSection.Items)
{
var contentItem = new Platform.ShellContent
{
Route = content.Route ?? content.Title ?? "",
Title = content.Title ?? "",
IconPath = content.Icon?.ToString(),
MauiShellContent = content,
Content = RenderShellContent(content)
};
section.Items.Add(contentItem);
}
}
PlatformView.AddSection(section);
}
else if (item is ShellItem shellItem)
{
var section = new Platform.ShellSection
{
Route = shellItem.Route ?? shellItem.Title ?? "",
Title = shellItem.Title ?? "",
IconPath = shellItem.Icon?.ToString()
};
foreach (var shellSection in shellItem.Items)
{
foreach (var content in shellSection.Items)
{
var contentItem = new Platform.ShellContent
{
Route = content.Route ?? content.Title ?? "",
Title = content.Title ?? "",
IconPath = content.Icon?.ToString(),
MauiShellContent = content,
Content = RenderShellContent(content)
};
section.Items.Add(contentItem);
}
}
PlatformView.AddSection(section);
}
}
}
private SkiaView? RenderShellContent(Microsoft.Maui.Controls.ShellContent content)
{
if (MauiContext is null) return null;
try
{
var page = content.Content as Page;
if (page == null && content.ContentTemplate != null)
{
page = content.ContentTemplate.CreateContent() as Page;
}
if (page != null)
{
if (page.Handler == null)
{
page.Handler = page.ToViewHandler(MauiContext);
}
if (page.Handler?.PlatformView is SkiaView skiaView)
{
return skiaView;
}
}
}
catch (Exception ex)
{
Console.WriteLine($"[ShellHandler] Error rendering content: {ex.Message}");
}
return null;
}
private static void RefreshShellColors(SkiaShell platformView, Shell shell)
{
// Sync flyout colors
if (shell.FlyoutBackgroundColor is Color flyoutBgColor)
{
platformView.FlyoutBackgroundColor = flyoutBgColor.ToSKColor();
}
else if (shell.FlyoutBackground is SolidColorBrush flyoutBrush)
{
platformView.FlyoutBackgroundColor = flyoutBrush.Color.ToSKColor();
}
// Sync nav bar colors
if (shell.BackgroundColor is Color bgColor)
{
platformView.NavBarBackgroundColor = bgColor.ToSKColor();
}
}
public static void MapFlyoutIsPresented(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null || handler._isUpdatingFlyoutPresented) return;
try
{
handler._isUpdatingFlyoutPresented = true;
handler.PlatformView.FlyoutIsPresented = shell.FlyoutIsPresented;
}
finally
{
handler._isUpdatingFlyoutPresented = false;
}
}
public static void MapFlyoutBehavior(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
handler.PlatformView.FlyoutBehavior = shell.FlyoutBehavior switch
{
Microsoft.Maui.FlyoutBehavior.Disabled => ShellFlyoutBehavior.Disabled,
Microsoft.Maui.FlyoutBehavior.Flyout => ShellFlyoutBehavior.Flyout,
Microsoft.Maui.FlyoutBehavior.Locked => ShellFlyoutBehavior.Locked,
_ => ShellFlyoutBehavior.Flyout
};
}
public static void MapFlyoutWidth(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
handler.PlatformView.FlyoutWidth = (float)shell.FlyoutWidth;
}
public static void MapFlyoutBackgroundColor(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
if (shell.FlyoutBackgroundColor is Color color)
{
handler.PlatformView.FlyoutBackgroundColor = color.ToSKColor();
}
}
public static void MapFlyoutBackground(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
if (shell.FlyoutBackground is SolidColorBrush solidBrush)
{
handler.PlatformView.FlyoutBackgroundColor = solidBrush.Color.ToSKColor();
}
}
public static void MapBackgroundColor(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
if (shell.BackgroundColor is Color color)
{
handler.PlatformView.NavBarBackgroundColor = color.ToSKColor();
}
}
public static void MapFlyoutHeaderBehavior(ShellHandler handler, Shell shell)
{
// Flyout header behavior - handled by platform view
}
public static void MapFlyoutHeader(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null || handler.MauiContext is null) return;
var header = shell.FlyoutHeader;
if (header == null)
{
handler.PlatformView.FlyoutHeaderView = null;
return;
}
if (header is View headerView)
{
if (headerView.Handler == null)
{
headerView.Handler = headerView.ToViewHandler(handler.MauiContext);
}
if (headerView.Handler?.PlatformView is SkiaView skiaHeader)
{
handler.PlatformView.FlyoutHeaderView = skiaHeader;
}
}
}
public static void MapFlyoutFooter(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null || handler.MauiContext is null) return;
var footer = shell.FlyoutFooter;
if (footer == null)
{
handler.PlatformView.FlyoutFooterText = null;
return;
}
// Simple text footer support
if (footer is Label label)
{
handler.PlatformView.FlyoutFooterText = label.Text;
}
else if (footer is string text)
{
handler.PlatformView.FlyoutFooterText = text;
}
}
public static void MapItems(ShellHandler handler, Shell shell)
{
handler.SyncShellItems();
}
public static void MapCurrentItem(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
// Sync current item selection
var currentItem = shell.CurrentItem;
if (currentItem != null)
{
// Find matching section index
for (int i = 0; i < handler.PlatformView.Sections.Count; i++)
{
var section = handler.PlatformView.Sections[i];
if (section.Route == (currentItem.Route ?? currentItem.Title))
{
handler.PlatformView.NavigateToSection(i);
break;
}
}
}
}
public static void MapTitle(ShellHandler handler, Shell shell)
{
if (handler.PlatformView is null) return;
handler.PlatformView.Title = shell.Title ?? "";
}
public static void MapGoToAsync(ShellHandler handler, Shell shell, object? args)
{
if (handler.PlatformView is null || args is null) return;
if (args is ShellNavigationState state)
{
handler.PlatformView.GoToAsync(state.Location.ToString());
}
else if (args is string route)
{
handler.PlatformView.GoToAsync(route);
}
}
}