Ooui-tws-port/Ooui.Forms/Cells/SwitchCellElement.cs

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C#
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2018-04-26 23:55:23 +00:00
using System;
using System.ComponentModel;
using Ooui.Forms.Extensions;
using Ooui.Forms.Renderers;
using Xamarin.Forms;
namespace Ooui.Forms.Cells
{
public class SwitchCellElement : CellElement
{
public Label TextLabel { get; } = new Label ();
public SwitchRenderer.SwitchElement Switch { get; } = new SwitchRenderer.SwitchElement ();
public SwitchCellElement ()
{
AppendChild (TextLabel);
AppendChild (Switch);
Switch.Style.Display = "inline-block";
Switch.Change += Switch_Change;
}
protected override void BindCell ()
{
Cell.PropertyChanged += Cell_PropertyChanged;
if (Cell is SwitchCell cell) {
UpdateText (cell);
UpdateOn (cell);
}
base.BindCell ();
}
protected override void UnbindCell ()
{
Cell.PropertyChanged -= Cell_PropertyChanged;
base.UnbindCell ();
}
void Cell_PropertyChanged (object sender, PropertyChangedEventArgs e)
{
var cell = (SwitchCell)sender;
if (e.PropertyName == SwitchCell.TextProperty.PropertyName)
UpdateText (cell);
else if (e.PropertyName == SwitchCell.OnProperty.PropertyName)
UpdateOn (cell);
}
void UpdateText (SwitchCell cell)
{
TextLabel.Text = cell.Text ?? string.Empty;
}
void UpdateOn (SwitchCell cell)
{
Switch.IsChecked = cell.On;
}
void Switch_Change (object sender, EventArgs e)
{
if (Cell is SwitchCell cell)
cell.On = Switch.IsChecked;
}
}
}