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path: root/Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs
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Diffstat (limited to 'Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs')
-rw-r--r--Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs144
1 files changed, 144 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs b/Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs
new file mode 100644
index 0000000..43789dc
--- /dev/null
+++ b/Xamarin.Forms.Platform.MacOS/Cells/EntryCellRenderer.cs
@@ -0,0 +1,144 @@
+´╗┐using System;
+using System.ComponentModel;
+using AppKit;
+using CoreGraphics;
+using Foundation;
+
+namespace Xamarin.Forms.Platform.MacOS
+{
+ public class EntryCellRenderer : CellRenderer
+ {
+ static readonly Color s_defaultTextColor = Color.Black;
+
+ public override NSView GetCell(Cell item, NSView reusableView, NSTableView tv)
+ {
+ NSTextField nsEntry = null;
+ var tvc = reusableView as CellNSView;
+ if (tvc == null)
+ tvc = new CellNSView(NSTableViewCellStyle.Value2);
+ else
+ {
+ tvc.Cell.PropertyChanged -= OnCellPropertyChanged;
+
+ nsEntry = tvc.AccessoryView.Subviews[0] as NSTextField;
+ if (nsEntry != null)
+ {
+ nsEntry.RemoveFromSuperview();
+ nsEntry.Changed -= OnTextFieldTextChanged;
+ }
+ }
+
+ SetRealCell(item, tvc);
+
+ if (nsEntry == null)
+ tvc.AccessoryView.AddSubview(nsEntry = new NSTextField());
+
+ var entryCell = (EntryCell)item;
+
+ tvc.Cell = item;
+ tvc.Cell.PropertyChanged += OnCellPropertyChanged;
+ nsEntry.Changed += OnTextFieldTextChanged;
+
+ WireUpForceUpdateSizeRequested(item, tvc, tv);
+
+ UpdateBackground(tvc, entryCell);
+ UpdateLabel(tvc, entryCell);
+ UpdateText(tvc, entryCell);
+ UpdatePlaceholder(tvc, entryCell);
+ UpdateLabelColor(tvc, entryCell);
+ UpdateHorizontalTextAlignment(tvc, entryCell);
+ UpdateIsEnabled(tvc, entryCell);
+
+ return tvc;
+ }
+
+ internal override void UpdateBackgroundChild(Cell cell, NSColor backgroundColor)
+ {
+ var realCell = (CellNSView)GetRealCell(cell);
+
+ var nsTextField = realCell.AccessoryView.Subviews[0] as NSTextField;
+ if (nsTextField != null)
+ nsTextField.BackgroundColor = backgroundColor;
+
+ base.UpdateBackgroundChild(cell, backgroundColor);
+ }
+
+ static void OnCellPropertyChanged(object sender, PropertyChangedEventArgs e)
+ {
+ var entryCell = (EntryCell)sender;
+ var realCell = (CellNSView)GetRealCell(entryCell);
+
+ if (e.PropertyName == EntryCell.LabelProperty.PropertyName)
+ UpdateLabel(realCell, entryCell);
+ else if (e.PropertyName == EntryCell.TextProperty.PropertyName)
+ UpdateText(realCell, entryCell);
+ else if (e.PropertyName == EntryCell.PlaceholderProperty.PropertyName)
+ UpdatePlaceholder(realCell, entryCell);
+ else if (e.PropertyName == EntryCell.LabelColorProperty.PropertyName)
+ UpdateLabelColor(realCell, entryCell);
+ else if (e.PropertyName == EntryCell.HorizontalTextAlignmentProperty.PropertyName)
+ UpdateHorizontalTextAlignment(realCell, entryCell);
+ else if (e.PropertyName == Cell.IsEnabledProperty.PropertyName)
+ UpdateIsEnabled(realCell, entryCell);
+ }
+
+ static void OnTextFieldTextChanged(object sender, EventArgs eventArgs)
+ {
+ var notification = (NSNotification)sender;
+ var view = (NSView)notification.Object;
+ var field = (NSTextField)view;
+
+ CellNSView realCell = null;
+ while (view.Superview != null && realCell == null)
+ {
+ view = view.Superview;
+ realCell = view as CellNSView;
+ }
+
+ if (realCell != null)
+ ((EntryCell)realCell.Cell).Text = field.StringValue;
+ }
+
+ static void UpdateHorizontalTextAlignment(CellNSView cell, EntryCell entryCell)
+ {
+ var nsTextField = cell.AccessoryView.Subviews[0] as NSTextField;
+ if (nsTextField != null)
+ nsTextField.Alignment = entryCell.HorizontalTextAlignment.ToNativeTextAlignment();
+ }
+
+ static void UpdateIsEnabled(CellNSView cell, EntryCell entryCell)
+ {
+ cell.TextLabel.Enabled = entryCell.IsEnabled;
+ var nsTextField = cell.AccessoryView.Subviews[0] as NSTextField;
+ if (nsTextField != null)
+ nsTextField.Enabled = entryCell.IsEnabled;
+ }
+
+ static void UpdateLabel(CellNSView cell, EntryCell entryCell)
+ {
+ cell.TextLabel.StringValue = entryCell.Label ?? "";
+ }
+
+ static void UpdateLabelColor(CellNSView cell, EntryCell entryCell)
+ {
+ cell.TextLabel.TextColor = entryCell.LabelColor.ToNSColor(s_defaultTextColor);
+ }
+
+ static void UpdatePlaceholder(CellNSView cell, EntryCell entryCell)
+ {
+ var nsTextField = cell.AccessoryView.Subviews[0] as NSTextField;
+ if (nsTextField != null)
+ nsTextField.PlaceholderString = entryCell.Placeholder ?? "";
+ }
+
+ static void UpdateText(CellNSView cell, EntryCell entryCell)
+ {
+ var nsTextField = cell.AccessoryView.Subviews[0] as NSTextField;
+ if (nsTextField != null && nsTextField.StringValue == entryCell.Text)
+ return;
+
+ if (nsTextField != null)
+ nsTextField.StringValue = entryCell.Text ?? "";
+ }
+ }
+} \ No newline at end of file