protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_moreButton = GetTemplateChild("MoreButton") as Microsoft.UI.Xaml.Controls.Button;
_primaryItemsControl = GetTemplateChild("PrimaryItemsControl") as Microsoft.UI.Xaml.Controls.ItemsControl;
}
public static void UpdateLineBreakMode(this Microsoft.UI.Xaml.Controls.Button platformButton, Button button)
{
if (platformButton.GetContent <TextBlock>() is TextBlock textBlock)
{
textBlock?.UpdateLineBreakMode(button.LineBreakMode);
}
}
void AddNativeBindings(NativeBindingGalleryPage page)
{
if (page.NativeControlsAdded)
{
return;
}
StackLayout sl = page.Layout;
var txbLabel = new TextBlock
{
FontSize = 14,
FontFamily = new FontFamily("HelveticaNeue")
};
var txbBox = new TextBox
{
FontSize = 14,
FontFamily = new FontFamily("HelveticaNeue")
};
var btnColor = new Microsoft.UI.Xaml.Controls.Button {
Content = "Toggle Label Color", Height = 80
};
btnColor.Click += (sender, args) => txbLabel.Foreground = SolidColorBrush.Pink.ToBrush();
var btnTextBox = new Microsoft.UI.Xaml.Controls.Button {
Content = "Change text textbox", Height = 80
};
btnTextBox.Click += (sender, args) => txbBox.Text = "Hello 2 way native";
txbLabel.SetBinding("Text", new Binding("NativeLabel"));
txbBox.SetBinding("Text", new Binding("NativeLabel", BindingMode.TwoWay), "TextChanged");
txbLabel.SetBinding("Foreground", new Binding("NativeLabelColor", BindingMode.TwoWay, new ColorToBrushNativeBindingConverter()));
var grd = new StackPanel();
grd.Children.Add(txbLabel);
grd.Children.Add(btnColor);
sl?.Children.Add(grd.ToView());
sl?.Children.Add(txbBox);
sl?.Children.Add(btnTextBox.ToView());
page.NativeControlsAdded = true;
}
void UpdateButtonBackground(Brush value)
{
var brush = value.ToBrush();
_minus = GetTemplateChild("Minus") as Microsoft.UI.Xaml.Controls.Button;
_plus = GetTemplateChild("Plus") as Microsoft.UI.Xaml.Controls.Button;
if (_minus != null)
{
_minus.Background = brush;
}
if (_plus != null)
{
_plus.Background = brush;
}
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_plus = GetTemplateChild("Plus") as Microsoft.UI.Xaml.Controls.Button;
if (_plus != null)
{
_plus.Click += OnPlusClicked;
}
_minus = GetTemplateChild("Minus") as Microsoft.UI.Xaml.Controls.Button;
if (_minus != null)
{
_minus.Click += OnMinusClicked;
}
UpdateEnabled(Value);
UpdateButtonBackgroundColor(ButtonBackgroundColor);
}
void UpdateButtonBackgroundColor(Color value)
{
if (value == null)
{
return;
}
WBrush brush = value.ToPlatform();
_minus = GetTemplateChild("Minus") as Microsoft.UI.Xaml.Controls.Button;
_plus = GetTemplateChild("Plus") as Microsoft.UI.Xaml.Controls.Button;
if (_minus != null)
{
_minus.Background = brush;
}
if (_plus != null)
{
_plus.Background = brush;
}
}
void UpdateButtonBackgroundColor(Color value)
{
if (value == null)
{
return;
}
WBrush brush = Maui.ColorExtensions.ToNative(value);
_minus = GetTemplateChild("Minus") as Microsoft.UI.Xaml.Controls.Button;
_plus = GetTemplateChild("Plus") as Microsoft.UI.Xaml.Controls.Button;
if (_minus != null)
{
_minus.Background = brush;
}
if (_plus != null)
{
_plus.Background = brush;
}
}
void AddNativeControls(NestedNativeControlGalleryPage page)
{
if (page.NativeControlsAdded)
{
return;
}
StackLayout sl = page.Layout;
// Create and add a native TextBlock
var originalText = "I am a native TextBlock";
var textBlock = new TextBlock
{
Text = originalText,
FontSize = 14,
FontFamily = new FontFamily("HelveticaNeue")
};
sl?.Children.Add(textBlock);
// Create and add a native Button
var button = new Microsoft.UI.Xaml.Controls.Button {
Content = "Toggle Font Size", Height = 80
};
button.Click += (sender, args) => { textBlock.FontSize = textBlock.FontSize == 14 ? 24 : 14; };
sl?.Children.Add(button.ToView());
// Create a control which we know doesn't behave correctly with regard to measurement
var difficultControl = new BrokenNativeControl
{
Text = "Not Sized/Arranged Properly"
};
var difficultControl2 = new BrokenNativeControl
{
Text = "Fixed"
};
// Add the misbehaving controls, one with a custom delegate for ArrangeOverrideDelegate
sl?.Children.Add(difficultControl);
sl?.Children.Add(difficultControl2,
arrangeOverrideDelegate: (renderer, finalSize) =>
{
if (finalSize.Width <= 0 || double.IsInfinity(finalSize.Width))
{
return(null);
}
FrameworkElement frameworkElement = renderer.Control;
frameworkElement.Measure(finalSize);
// The broken control always tries to size itself to the screen width
// So figure that out and we'll know how far off it's laying itself out
var bounds = ApplicationView.GetForCurrentView().VisibleBounds;
double scaleFactor = DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel;
var screenWidth = new Size(bounds.Width * scaleFactor, bounds.Height * scaleFactor);
// We can re-center it by offsetting it during the Arrange call
double diff = Math.Abs(screenWidth.Width - finalSize.Width) / -2;
frameworkElement.Arrange(new Windows.Foundation.Rect(diff, 0, finalSize.Width - diff, finalSize.Height));
// Arranging the control to the left will make it show up past the edge of the stack layout
// We can fix that by clipping it manually
var clip = new RectangleGeometry {
Rect = new Windows.Foundation.Rect(-diff, 0, finalSize.Width, finalSize.Height)
};
frameworkElement.Clip = clip;
return(finalSize);
}
);
page.NativeControlsAdded = true;
}