Accessibility: Port "GetClickablePoint returns error value when the element is offscreen" from main (#5130)

ryalanms · web-flow · commit afd07278b9b8 · 2021-08-20T11:54:25.000-07:00
diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Automation/Peers/AutomationPeer.cs b/src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Automation/Peers/AutomationPeer.cs
@@ -1181,7 +1181,14 @@ public Point GetClickablePoint()
             try
             {
                 _publicCallInProgress = true;
-                result = GetClickablePointCore();
+                if (IsOffscreenCore())
+                {
+                    result = new Point(double.NaN, double.NaN);
+                }
+                else
+                {
+                    result = GetClickablePointCore();
+                }
             }
             finally
             {

Original file line number	Diff line number	Diff line change
`@@ -1181,7 +1181,14 @@ public Point GetClickablePoint()`
`1181`	`1181`	`try`
`1182`	`1182`	`{`
`1183`	`1183`	`_publicCallInProgress = true;`
`1184`		`- result = GetClickablePointCore();`
	`1184`	`+ if (IsOffscreenCore())`
	`1185`	`+ {`
	`1186`	`+ result = new Point(double.NaN, double.NaN);`
	`1187`	`+ }`
	`1188`	`+ else`
	`1189`	`+ {`
	`1190`	`+ result = GetClickablePointCore();`
	`1191`	`+ }`
`1185`	`1192`	`}`
`1186`	`1193`	`finally`
`1187`	`1194`	`{`