protected void UpdateAutomationId()
{
if (!string.IsNullOrEmpty(Element.AutomationId))
{
WAutomationProperties.SetAutomationId(Control, Element.AutomationId);
}
}
protected void UpdateAutomationHelpText()
{
var helpText = AutomationProperties.GetHelpText(Element);
if (!string.IsNullOrEmpty(helpText))
{
WAutomationProperties.SetHelpText(Control, helpText);
}
}
protected void UpdateAutomationLabeledBy()
{
var label = AutomationProperties.GetLabeledBy(Element);
if (label != null)
{
WAutomationProperties.SetLabeledBy(Control, Platform.GetRenderer(label)?.GetNativeElement());
}
}
protected void UpdateAutomationName()
{
var name = AutomationProperties.GetName(Element);
if (!string.IsNullOrEmpty(name))
{
WAutomationProperties.SetName(Control, name);
}
}
async void UpdateContent()
{
var text = Element.UpdateFormsText(Element.Text, Element.TextTransform);
var elementImage = await Element.ImageSource.ToWindowsImageSourceAsync();
// No image, just the text
if (elementImage == null)
{
Control.Content = text;
Element?.InvalidateMeasureNonVirtual(InvalidationTrigger.RendererReady);
return;
}
var image = new WImage
{
Source = elementImage,
Width = 30,
Height = 30,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center
};
// No text, just the image
if (string.IsNullOrEmpty(text))
{
Control.Content = image;
Element?.InvalidateMeasureNonVirtual(InvalidationTrigger.RendererReady);
return;
}
// Both image and text, so we need to build a container for them
var layout = Element.ContentLayout;
var container = new StackPanel();
var textBlock = new TextBlock
{
Text = text,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center
};
// narrator doesn't pick up text content when nested in a layout so set automation name unless set explicitly
if (string.IsNullOrEmpty(WAutomationProperties.GetName(Control)))
{
WAutomationProperties.SetName(Control, text);
}
var spacing = layout.Spacing;
container.HorizontalAlignment = HorizontalAlignment.Center;
container.VerticalAlignment = VerticalAlignment.Center;
switch (layout.Position)
{
case Button.ButtonContentLayout.ImagePosition.Top:
container.Orientation = Orientation.Vertical;
image.Margin = new WThickness(0, 0, 0, spacing);
break;
case Button.ButtonContentLayout.ImagePosition.Bottom:
container.Orientation = Orientation.Vertical;
image.Margin = new WThickness(0, spacing, 0, 0);
break;
case Button.ButtonContentLayout.ImagePosition.Right:
container.Orientation = Orientation.Horizontal;
image.Margin = new WThickness(spacing, 0, 0, 0);
break;
default:
// Defaults to image on the left
container.Orientation = Orientation.Horizontal;
image.Margin = new WThickness(0, 0, spacing, 0);
break;
}
container.Children.Add(image);
container.Children.Add(textBlock);
Control.Content = container;
Element?.InvalidateMeasureNonVirtual(InvalidationTrigger.RendererReady);
}
