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SwitchRenderer.cs
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SwitchRenderer.cs
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using System;
using ElmSharp;
using Xamarin.Forms.PlatformConfiguration.TizenSpecific;
using Specific = Xamarin.Forms.PlatformConfiguration.TizenSpecific.VisualElement;
using SpecificSwitch = Xamarin.Forms.PlatformConfiguration.TizenSpecific.Switch;
using EColor = ElmSharp.Color;
namespace Xamarin.Forms.Platform.Tizen
{
public class SwitchRenderer : ViewRenderer<Switch, Check>
{
readonly string _onColorPart;
readonly bool _isTV;
string _onColorEdjePart;
public SwitchRenderer()
{
_isTV = Device.Idiom == TargetIdiom.TV;
_onColorPart = _isTV ? "slider_on" : Device.Idiom == TargetIdiom.Watch ? "outer_bg_on" : "bg_on";
RegisterPropertyHandler(Switch.IsToggledProperty, HandleToggled);
RegisterPropertyHandler(Switch.OnColorProperty, UpdateOnColor);
RegisterPropertyHandler(SpecificSwitch.ColorProperty, UpdateColor);
}
protected override void OnElementChanged(ElementChangedEventArgs<Switch> e)
{
if (Control == null)
{
SetNativeControl(new Check(Forms.NativeParent)
{
Style = SwitchStyle.Toggle
});
Control.StateChanged += OnStateChanged;
_onColorEdjePart = Control.ClassName.ToLower().Replace("elm_", "") + "/" + _onColorPart;
}
base.OnElementChanged(e);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (Control != null)
{
Control.StateChanged -= OnStateChanged;
}
}
base.Dispose(disposing);
}
protected override void UpdateThemeStyle()
{
var style = Specific.GetStyle(Element);
if (string.IsNullOrEmpty(style))
{
return;
}
switch (style)
{
case SwitchStyle.Toggle:
case SwitchStyle.Favorite:
case SwitchStyle.CheckBox:
case SwitchStyle.OnOff:
case SwitchStyle.Small:
Control.Style = style;
break;
default:
Control.Style = SwitchStyle.Toggle;
break;
}
((IVisualElementController)Element).NativeSizeChanged();
UpdateBackgroundColor(false);
UpdateOnColor(false);
UpdateColor();
}
protected virtual void UpdateColor()
{
var color = SpecificSwitch.GetColor(Element);
if (color != Color.Default)
{
Control.Color = color.ToNative();
}
}
protected void UpdateOnColor(bool initialize)
{
if (initialize && Element.OnColor.IsDefault)
return;
if (Element.OnColor.IsDefault)
{
Control.EdjeObject.DeleteColorClass(_onColorEdjePart);
if (_isTV)
Control.EdjeObject.DeleteColorClass(_onColorEdjePart.Replace(_onColorPart, "slider_focused_on"));
}
else
{
EColor color = Element.OnColor.ToNative();
Control.SetPartColor(_onColorPart, color);
if (_isTV)
Control.SetPartColor("slider_focused_on", color);
}
}
void OnStateChanged(object sender, EventArgs e)
{
Element.SetValueFromRenderer(Switch.IsToggledProperty, Control.IsChecked);
}
void HandleToggled()
{
Control.IsChecked = Element.IsToggled;
}
}
}