Fixed: FileSelectionField - editing text field is difficult - cursor jumps to the end after each keystroke #27

Author: jpsacha

scalafx-extras/src/main/scala/org/scalafx/extras/generic_pane/DirectorySelectionField.scala

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2023, ScalaFX Project
+ * Copyright (c) 2011-2024, ScalaFX Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,7 +27,7 @@
 
 package org.scalafx.extras.generic_pane
 
-import scalafx.application.Platform
+import org.scalafx.extras.onFX
 import scalafx.beans.property.StringProperty
 import scalafx.scene.Node
 import scalafx.scene.control.{Button, TextField}
@@ -44,7 +44,7 @@ object DirectorySelectionField {
    * existing parent
    */
   @tailrec
-  def existingOrParent(file: File): File =
+  private def existingOrParent(file: File): File =
     if (file.exists()) file
     else existingOrParent(file.getCanonicalFile.getParentFile)
 }
@@ -90,14 +90,6 @@ class DirectorySelectionField(
       prefColumnCount = columns
     }
 
-    // Make sure that end of the file name is visible
-    textField.text.onChange { (_, _, _) =>
-      val location = textField.text.length.get()
-      Platform.runLater {
-        textField.positionCaret(location)
-      }
-    }
-
     val button = new Button("Browse") {
       onAction = _ => {
         val initialPath = path.value
@@ -112,6 +104,7 @@ class DirectorySelectionField(
         Option(selection).foreach { s =>
           path.value = s.getCanonicalPath
           lastDirectoryHandler.lastDirectory = s
+          onFX { textField.positionCaret(textField.text.length.get()) }
         }
       }
     }

scalafx-extras/src/main/scala/org/scalafx/extras/generic_pane/FileSelectionField.scala

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2023, ScalaFX Project
+ * Copyright (c) 2011-2024, ScalaFX Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,7 +27,7 @@
 
 package org.scalafx.extras.generic_pane
 
-import scalafx.application.Platform
+import org.scalafx.extras.onFX
 import scalafx.beans.property.StringProperty
 import scalafx.scene.Node
 import scalafx.scene.control.{Button, TextField}
@@ -73,14 +73,6 @@ class FileSelectionField(
       prefColumnCount = columns
     }
 
-    // Make sure that end of the file name is visible
-    textField.text.onChange { (_, _, _) =>
-      val location = textField.text.length.get()
-      Platform.runLater {
-        textField.positionCaret(location)
-      }
-    }
-
     val button = new Button("Browse") {
       onAction = _ => {
         val initialPath = path.value
@@ -101,6 +93,7 @@ class FileSelectionField(
         Option(selection).foreach { s =>
           path.value = s.getCanonicalPath
           lastDirectoryHandler.lastDirectory = s
+          onFX { textField.positionCaret(textField.text.length.get()) }
         }
       }
     }