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using System;
using System.Collections.Generic;
using System.Globalization;
using ElmSharp;
using EColor = ElmSharp.Color;
namespace Xamarin.Forms.Platform.Tizen
{
public class EntryCellRenderer : ViewCellRenderer
{
static readonly double s_defaultHeight = 65;
static readonly EColor s_defaultLabelColor = EColor.Black;
readonly Dictionary<EvasObject, VisualElement> _cacheCandidate = new Dictionary<EvasObject, VisualElement>();
public EntryCellRenderer()
{
}
protected override EvasObject OnGetContent(Cell cell, string part)
{
if (part == MainContentPart)
{
var entryCell = cell as EntryCell;
int pixelHeight = Forms.ConvertToScaledPixel(entryCell.RenderHeight);
pixelHeight = pixelHeight > 0 ? pixelHeight : Forms.ConvertToPixel(s_defaultHeight);
var label = new Label()
{
HorizontalOptions = LayoutOptions.Start,
VerticalOptions = LayoutOptions.Center,
VerticalTextAlignment = TextAlignment.Center,
FontSize = -1
};
label.SetBinding(Label.TextProperty, new Binding(EntryCell.LabelProperty.PropertyName));
label.SetBinding(Label.TextColorProperty, new Binding(EntryCell.LabelColorProperty.PropertyName, converter: new DefaultColorConverter()));
var entry = new Entry()
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.Center,
FontSize = -1,
};
entry.SetBinding(Entry.TextProperty, new Binding(EntryCell.TextProperty.PropertyName, BindingMode.TwoWay));
entry.SetBinding(Entry.PlaceholderProperty, new Binding(EntryCell.PlaceholderProperty.PropertyName));
entry.SetBinding(InputView.KeyboardProperty, new Binding(EntryCell.KeyboardProperty.PropertyName));
entry.SetBinding(Entry.HorizontalTextAlignmentProperty, new Binding(EntryCell.HorizontalTextAlignmentProperty.PropertyName));
var layout = new StackLayout()
{
Orientation = StackOrientation.Horizontal,
Children = {
label,
entry
}
};
layout.Parent = cell;
layout.BindingContext = entryCell;
layout.MinimumHeightRequest = Forms.ConvertToScaledDP(pixelHeight);
var renderer = Platform.GetOrCreateRenderer(layout);
(renderer as LayoutRenderer)?.RegisterOnLayoutUpdated();
var nativeView = renderer.NativeView;
nativeView.MinimumHeight = pixelHeight;
_cacheCandidate[nativeView] = layout;
nativeView.Deleted += (sender, e) =>
{
_cacheCandidate.Remove(sender as EvasObject);
};
return nativeView;
}
return null;
}
protected override EvasObject OnReusableContent(Cell cell, string part, EvasObject old)
{
if (!_cacheCandidate.ContainsKey(old))
{
return null;
}
var layout = _cacheCandidate[old];
layout.BindingContext = cell;
int height = Forms.ConvertToScaledPixel(cell.RenderHeight);
height = height > 0 ? height : Forms.ConvertToPixel(s_defaultHeight);
old.MinimumHeight = height;
return old;
}
class DefaultColorConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return ((Color)value).IsDefault ? s_defaultLabelColor : value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return value;
}
}
}
}
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