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authorJason Smith <jason.smith@xamarin.com>2016-03-22 20:02:25 (GMT)
committerJason Smith <jason.smith@xamarin.com>2016-03-22 23:13:41 (GMT)
commit17fdde66d94155fc62a034fa6658995bef6fd6e5 (patch)
treeb5e5073a2a7b15cdbe826faa5c763e270a505729 /Xamarin.Forms.Platform.WP8/TableViewRenderer.cs
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Diffstat (limited to 'Xamarin.Forms.Platform.WP8/TableViewRenderer.cs')
-rw-r--r--Xamarin.Forms.Platform.WP8/TableViewRenderer.cs91
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diff --git a/Xamarin.Forms.Platform.WP8/TableViewRenderer.cs b/Xamarin.Forms.Platform.WP8/TableViewRenderer.cs
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+´╗┐using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Media;
+using Microsoft.Phone.Shell;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+ public class TableViewRenderer : ViewRenderer<Xamarin.Forms.TableView, TableView>
+ {
+ TableView _view;
+
+ public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
+ {
+ SizeRequest result = base.GetDesiredSize(widthConstraint, heightConstraint);
+ result.Minimum = new Size(40, 40);
+ return result;
+ }
+
+ protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.TableView> e)
+ {
+ base.OnElementChanged(e);
+
+ Element.ModelChanged += OnModelChanged;
+
+ _view = new TableView { DataContext = Element.Root };
+ _view.Tap += OnTapTable;
+ _view.Hold += OnLongPressTable;
+ SetNativeControl(_view);
+ }
+
+ bool FindIndices(GestureEventArgs e, out int sectionIndex, out int cellIndex)
+ {
+ sectionIndex = 0;
+ cellIndex = 0;
+
+ TableSection section = null;
+ Cell cell = null;
+
+ System.Windows.Point pos = e.GetPosition(System.Windows.Application.Current.RootVisual);
+ if (Device.Info.CurrentOrientation.IsLandscape())
+ {
+ double x = pos.Y;
+ double y = System.Windows.Application.Current.RootVisual.RenderSize.Width - pos.X + (SystemTray.IsVisible ? 72 : 0);
+ pos = new System.Windows.Point(x, y);
+ }
+ IEnumerable<UIElement> elements = VisualTreeHelper.FindElementsInHostCoordinates(pos, System.Windows.Application.Current.RootVisual);
+ foreach (FrameworkElement element in elements.OfType<FrameworkElement>())
+ {
+ if (cell == null)
+ cell = element.DataContext as Cell;
+ else if (section == null)
+ section = element.DataContext as TableSection;
+ else
+ break;
+ }
+
+ if (cell == null || section == null)
+ return false;
+
+ sectionIndex = Element.Root.IndexOf(section);
+ cellIndex = section.IndexOf(cell);
+ return true;
+ }
+
+ void OnLongPressTable(object sender, GestureEventArgs e)
+ {
+ int sectionIndex, cellIndex;
+ if (!FindIndices(e, out sectionIndex, out cellIndex))
+ return;
+
+ Element.Model.RowLongPressed(sectionIndex, cellIndex);
+ }
+
+ void OnModelChanged(object sender, EventArgs eventArgs)
+ {
+ _view.DataContext = Element.Root;
+ }
+
+ void OnTapTable(object sender, GestureEventArgs e)
+ {
+ int sectionIndex, cellIndex;
+ if (!FindIndices(e, out sectionIndex, out cellIndex))
+ return;
+
+ Element.Model.RowSelected(sectionIndex, cellIndex);
+ }
+ }
+} \ No newline at end of file