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maui-linux/Views/SkiaContentPresenter.cs
Dave Friedel 1f096c38dc Update with recovered code from VM binaries (Jan 1) 
Recovered from decompiled OpenMaui.Controls.Linux.dll:
- SkiaShell.cs: FlyoutHeader, FlyoutFooter, scroll support (918 -> 1325 lines)
- X11Window.cs: Cursor support (XCreateFontCursor, XDefineCursor)
- All handlers with dark mode support
- All services with latest implementations
- LinuxApplication with theme change handling
2026-01-01 06:22:48 -05:00

243 lines
9.6 KiB
C#
Raw Blame History

using System;
using Microsoft.Maui.Controls;
using SkiaSharp;
namespace Microsoft.Maui.Platform;
public class SkiaContentPresenter : SkiaView
{
public static readonly BindableProperty ContentProperty = BindableProperty.Create("Content", typeof(SkiaView), typeof(SkiaContentPresenter), (object)null, (BindingMode)2, (ValidateValueDelegate)null, (BindingPropertyChangedDelegate)delegate(BindableObject b, object o, object n)
{
((SkiaContentPresenter)(object)b).OnContentChanged((SkiaView)o, (SkiaView)n);
}, (BindingPropertyChangingDelegate)null, (CoerceValueDelegate)null, (CreateDefaultValueDelegate)null);
public static readonly BindableProperty HorizontalContentAlignmentProperty = BindableProperty.Create("HorizontalContentAlignment", typeof(LayoutAlignment), typeof(SkiaContentPresenter), (object)LayoutAlignment.Fill, (BindingMode)2, (ValidateValueDelegate)null, (BindingPropertyChangedDelegate)delegate(BindableObject b, object o, object n)
{
((SkiaContentPresenter)(object)b).InvalidateMeasure();
}, (BindingPropertyChangingDelegate)null, (CoerceValueDelegate)null, (CreateDefaultValueDelegate)null);
public static readonly BindableProperty VerticalContentAlignmentProperty = BindableProperty.Create("VerticalContentAlignment", typeof(LayoutAlignment), typeof(SkiaContentPresenter), (object)LayoutAlignment.Fill, (BindingMode)2, (ValidateValueDelegate)null, (BindingPropertyChangedDelegate)delegate(BindableObject b, object o, object n)
{
((SkiaContentPresenter)(object)b).InvalidateMeasure();
}, (BindingPropertyChangingDelegate)null, (CoerceValueDelegate)null, (CreateDefaultValueDelegate)null);
public static readonly BindableProperty PaddingProperty = BindableProperty.Create("Padding", typeof(SKRect), typeof(SkiaContentPresenter), (object)SKRect.Empty, (BindingMode)2, (ValidateValueDelegate)null, (BindingPropertyChangedDelegate)delegate(BindableObject b, object o, object n)
{
((SkiaContentPresenter)(object)b).InvalidateMeasure();
}, (BindingPropertyChangingDelegate)null, (CoerceValueDelegate)null, (CreateDefaultValueDelegate)null);
public SkiaView? Content
{
get
{
return (SkiaView)((BindableObject)this).GetValue(ContentProperty);
}
set
{
((BindableObject)this).SetValue(ContentProperty, (object)value);
}
}
public LayoutAlignment HorizontalContentAlignment
{
get
{
return (LayoutAlignment)((BindableObject)this).GetValue(HorizontalContentAlignmentProperty);
}
set
{
((BindableObject)this).SetValue(HorizontalContentAlignmentProperty, (object)value);
}
}
public LayoutAlignment VerticalContentAlignment
{
get
{
return (LayoutAlignment)((BindableObject)this).GetValue(VerticalContentAlignmentProperty);
}
set
{
((BindableObject)this).SetValue(VerticalContentAlignmentProperty, (object)value);
}
}
public SKRect Padding
{
get
{
//IL_000b: Unknown result type (might be due to invalid IL or missing references)
return (SKRect)((BindableObject)this).GetValue(PaddingProperty);
}
set
{
//IL_0006: Unknown result type (might be due to invalid IL or missing references)
((BindableObject)this).SetValue(PaddingProperty, (object)value);
}
}
private void OnContentChanged(SkiaView? oldContent, SkiaView? newContent)
{
if (oldContent != null)
{
oldContent.Parent = null;
}
if (newContent != null)
{
newContent.Parent = this;
if (((BindableObject)this).BindingContext != null)
{
BindableObject.SetInheritedBindingContext((BindableObject)(object)newContent, ((BindableObject)this).BindingContext);
}
}
InvalidateMeasure();
}
protected override void OnBindingContextChanged()
{
base.OnBindingContextChanged();
if (Content != null)
{
BindableObject.SetInheritedBindingContext((BindableObject)(object)Content, ((BindableObject)this).BindingContext);
}
}
protected override void OnDraw(SKCanvas canvas, SKRect bounds)
{
//IL_0001: Unknown result type (might be due to invalid IL or missing references)
//IL_0006: Unknown result type (might be due to invalid IL or missing references)
//IL_0012: Unknown result type (might be due to invalid IL or missing references)
//IL_0017: Unknown result type (might be due to invalid IL or missing references)
//IL_0019: Unknown result type (might be due to invalid IL or missing references)
//IL_0023: Unknown result type (might be due to invalid IL or missing references)
//IL_002b: Expected O, but got Unknown
//IL_002c: Unknown result type (might be due to invalid IL or missing references)
if (base.BackgroundColor != SKColors.Transparent)
{
SKPaint val = new SKPaint
{
Color = base.BackgroundColor,
Style = (SKPaintStyle)0
};
try
{
canvas.DrawRect(bounds, val);
}
finally
{
((IDisposable)val)?.Dispose();
}
}
Content?.Draw(canvas);
}
protected override SKSize MeasureOverride(SKSize availableSize)
{
//IL_0001: Unknown result type (might be due to invalid IL or missing references)
//IL_0006: Unknown result type (might be due to invalid IL or missing references)
//IL_002d: Unknown result type (might be due to invalid IL or missing references)
//IL_009d: Unknown result type (might be due to invalid IL or missing references)
//IL_00a2: Unknown result type (might be due to invalid IL or missing references)
//IL_00a7: Unknown result type (might be due to invalid IL or missing references)
//IL_00d6: Unknown result type (might be due to invalid IL or missing references)
SKRect padding = Padding;
if (Content == null)
{
return new SKSize(((SKRect)(ref padding)).Left + ((SKRect)(ref padding)).Right, ((SKRect)(ref padding)).Top + ((SKRect)(ref padding)).Bottom);
}
float num = ((HorizontalContentAlignment == LayoutAlignment.Fill) ? Math.Max(0f, ((SKSize)(ref availableSize)).Width - ((SKRect)(ref padding)).Left - ((SKRect)(ref padding)).Right) : float.PositiveInfinity);
float num2 = ((VerticalContentAlignment == LayoutAlignment.Fill) ? Math.Max(0f, ((SKSize)(ref availableSize)).Height - ((SKRect)(ref padding)).Top - ((SKRect)(ref padding)).Bottom) : float.PositiveInfinity);
SKSize val = Content.Measure(new SKSize(num, num2));
return new SKSize(((SKSize)(ref val)).Width + ((SKRect)(ref padding)).Left + ((SKRect)(ref padding)).Right, ((SKSize)(ref val)).Height + ((SKRect)(ref padding)).Top + ((SKRect)(ref padding)).Bottom);
}
protected override SKRect ArrangeOverride(SKRect bounds)
{
//IL_007b: Unknown result type (might be due to invalid IL or missing references)
//IL_0009: Unknown result type (might be due to invalid IL or missing references)
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
//IL_004b: Unknown result type (might be due to invalid IL or missing references)
//IL_0056: Unknown result type (might be due to invalid IL or missing references)
//IL_005b: Unknown result type (might be due to invalid IL or missing references)
//IL_005c: Unknown result type (might be due to invalid IL or missing references)
//IL_0069: Unknown result type (might be due to invalid IL or missing references)
//IL_006e: Unknown result type (might be due to invalid IL or missing references)
//IL_0075: Unknown result type (might be due to invalid IL or missing references)
if (Content != null)
{
SKRect padding = Padding;
SKRect availableBounds = new SKRect(((SKRect)(ref bounds)).Left + ((SKRect)(ref padding)).Left, ((SKRect)(ref bounds)).Top + ((SKRect)(ref padding)).Top, ((SKRect)(ref bounds)).Right - ((SKRect)(ref padding)).Right, ((SKRect)(ref bounds)).Bottom - ((SKRect)(ref padding)).Bottom);
SKSize desiredSize = Content.DesiredSize;
SKRect bounds2 = ApplyAlignment(availableBounds, desiredSize, HorizontalContentAlignment, VerticalContentAlignment);
Content.Arrange(bounds2);
}
return bounds;
}
private static SKRect ApplyAlignment(SKRect availableBounds, SKSize contentSize, LayoutAlignment horizontal, LayoutAlignment vertical)
{
//IL_009c: Unknown result type (might be due to invalid IL or missing references)
float num = ((SKRect)(ref availableBounds)).Left;
float num2 = ((SKRect)(ref availableBounds)).Top;
float num3 = ((horizontal == LayoutAlignment.Fill) ? ((SKRect)(ref availableBounds)).Width : ((SKSize)(ref contentSize)).Width);
float num4 = ((vertical == LayoutAlignment.Fill) ? ((SKRect)(ref availableBounds)).Height : ((SKSize)(ref contentSize)).Height);
switch (horizontal)
{
case LayoutAlignment.Center:
num = ((SKRect)(ref availableBounds)).Left + (((SKRect)(ref availableBounds)).Width - num3) / 2f;
break;
case LayoutAlignment.End:
num = ((SKRect)(ref availableBounds)).Right - num3;
break;
}
switch (vertical)
{
case LayoutAlignment.Center:
num2 = ((SKRect)(ref availableBounds)).Top + (((SKRect)(ref availableBounds)).Height - num4) / 2f;
break;
case LayoutAlignment.End:
num2 = ((SKRect)(ref availableBounds)).Bottom - num4;
break;
}
return new SKRect(num, num2, num + num3, num2 + num4);
}
public override SkiaView? HitTest(float x, float y)
{
//IL_0009: Unknown result type (might be due to invalid IL or missing references)
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
if (base.IsVisible)
{
SKRect bounds = base.Bounds;
if (((SKRect)(ref bounds)).Contains(x, y))
{
if (Content != null)
{
SkiaView skiaView = Content.HitTest(x, y);
if (skiaView != null)
{
return skiaView;
}
}
return this;
}
}
return null;
}
public override void OnPointerPressed(PointerEventArgs e)
{
Content?.OnPointerPressed(e);
}
public override void OnPointerMoved(PointerEventArgs e)
{
Content?.OnPointerMoved(e);
}
public override void OnPointerReleased(PointerEventArgs e)
{
Content?.OnPointerReleased(e);
}
}
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