use ExtendableTextField to merge browse button

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/ProjectConfigurable.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.openapi.roots.ui.configuration;
 
@@ -50,6 +36,7 @@ import com.intellij.project.ProjectKt;
 import com.intellij.ui.DocumentAdapter;
 import com.intellij.ui.FieldPanel;
 import com.intellij.ui.InsertPathAction;
+import com.intellij.ui.components.fields.ExtendableTextField;
 import com.intellij.util.ui.JBUI;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
@@ -329,7 +316,7 @@ public class ProjectConfigurable extends ProjectStructureElementConfigurable<Pro
         return version == null ? null : version.getMaxLanguageLevel();
       }
     };
-    final JTextField textField = new JTextField();
+    final JTextField textField = new ExtendableTextField();
     final FileChooserDescriptor outputPathsChooserDescriptor = FileChooserDescriptorFactory.createSingleFolderDescriptor();
     InsertPathAction.addTo(textField, outputPathsChooserDescriptor);
     outputPathsChooserDescriptor.setHideIgnored(false);