Find/Replace: display on top of the related Editor

If the editor is focused, acquire alwaysOnTop capabilities but drop them as soon as both the editor and the dialog are out of focus

Author: facchinm

app/src/cc/arduino/view/findreplace/FindReplace.java

@@ -73,10 +73,24 @@ public FindReplace(Editor editor, Map<String, Object> state) {
 
     Base.setIcon(this);
 
+    editor.addWindowListener(new WindowAdapter() {
+      public void windowActivated(WindowEvent e) {
+        findField.requestFocusInWindow();
+        findField.selectAll();
+        setAlwaysOnTop(true);
+      }
+      public void windowDeactivated(WindowEvent e) {
+        setAlwaysOnTop(false);
+      }
+    });
+
     addWindowListener(new WindowAdapter() {
       public void windowActivated(WindowEvent e) {
         findField.requestFocusInWindow();
         findField.selectAll();
+        setAlwaysOnTop(true);
+      }
+      public void windowDeactivated(WindowEvent e) {
       }
     });