Merge pull request #345 from UnityTech/dev

Dev

Runtime/rendering/editable.cs

                 else if (!this._selection.isCollapsed && this._selectionColor != null) {
                     showSelection = true;
                 }
+                this._updateSelectionExtentsVisibility(effectiveOffset);
             }
 
             if (showSelection) {

Runtime/rendering/list_wheel_viewport.cs

             );
         }
 
-        Matrix4x4 _magnifyTransform() {
-            Matrix4x4 magnify = Matrix4x4.identity;
-            magnify.translate(this.size.width * (-this._offAxisFraction + 0.5f), this.size.height / 2f);
-            magnify.scale(this._magnification, this._magnification, this._magnification);
-            magnify.translate(-this.size.width * (-this._offAxisFraction + 0.5f), -this.size.height / 2f);
-            return magnify;
-        }
-
-        Matrix3 _centerOriginTransform(Matrix3 originalMatrix) {
-            Matrix3 result = Matrix3.I();
-            Offset centerOriginTranslation = Alignment.center.alongSize(this.size);
-            result.setTranslate(centerOriginTranslation.dx * (-this._offAxisFraction * 2 + 1),
-                centerOriginTranslation.dy);
-            result.multiply(originalMatrix);
-            result.setTranslate(-centerOriginTranslation.dx * (-this._offAxisFraction * 2 + 1),
-                -centerOriginTranslation.dy);
-            return result;
-        }
-
-        Matrix4x4 _centerOriginTransform(Matrix4x4 originalMatrix) {
-            Matrix4x4 result = Matrix4x4.identity;
-            Offset centerOriginTranslation = Alignment.center.alongSize(this.size);
-            result.translate(centerOriginTranslation.dx * (-this._offAxisFraction * 2 + 1),
-                centerOriginTranslation.dy);
-            result.multiply(originalMatrix);
-            result.translate(-centerOriginTranslation.dx * (-this._offAxisFraction * 2 + 1),
-                -centerOriginTranslation.dy);
-            return result;
-        }
-
-        public void applyPaintTransform(RenderBox child, Matrix4x4 transform) {
-            ListWheelParentData parentData = (ListWheelParentData) child?.parentData;
-            transform.translate(0.0f, this._getUntransformedPaintingCoordinateY(parentData.offset.dy));
-        }
-
         public override Rect describeApproximatePaintClip(RenderObject child) {
             if (child != null && this._shouldClipAtCurrentOffset()) {
                 return Offset.zero & this.size;

Runtime/service/text_formatter.cs

         }
     }
 
+    public class WhitelistingTextInputFormatter : TextInputFormatter {
+        public WhitelistingTextInputFormatter(Regex whitelistedPattern) {
+            D.assert(whitelistedPattern != null);
+            this.whitelistedPattern = whitelistedPattern;
+        }
+
+        readonly Regex whitelistedPattern;
+
+        public override TextEditingValue formatEditUpdate(TextEditingValue oldValue, TextEditingValue newValue) {
+            return Util._selectionAwareTextManipulation(
+                value: newValue,
+                substringManipulation: substring => {
+                    string groups = "";
+                    foreach (Match match in this.whitelistedPattern.Matches(input: substring)) {
+                        groups += match.Groups[0].Value;
+                    }
+
+                    return groups;
+                }
+            );
+        }
+
+        public static readonly WhitelistingTextInputFormatter digitsOnly
+            = new WhitelistingTextInputFormatter(new Regex(@"\d+"));
+    }
+
     static class Util {
         internal static TextEditingValue _selectionAwareTextManipulation(TextEditingValue value,
             Func<string, string> substringManipulation) {

Runtime/widgets/text_selection.cs

 using Unity.UIWidgets.scheduler;
 using Unity.UIWidgets.service;
 using Unity.UIWidgets.ui;
+using Rect = Unity.UIWidgets.ui.Rect;
 
 namespace Unity.UIWidgets.widgets {
     static class TextSelectionUtils {
                             offset: value.selection.start + data.text.Length
                         )
                     );
+                    
+                    selectionDelegate.bringIntoView(selectionDelegate.textEditingValue.selection.extendPos);
+                    selectionDelegate.hideToolbar();
-
-                selectionDelegate.bringIntoView(selectionDelegate.textEditingValue.selection.extendPos);
-                selectionDelegate.hideToolbar();
             });
         }