drop unnessessary shift-tab

platform/lang-impl/src/com/intellij/ui/LanguageTextField.java

@@ -62,8 +62,6 @@ public class LanguageTextField extends EditorTextField {
     myProject = project;
 
     setEnabled(language != null);
-
-    ShiftTabAction.attachTo(this);
   }
 
   public interface DocumentCreator {

platform/lang-impl/src/com/intellij/ui/ShiftTabAction.java

@@ -1,70 +0,0 @@
-/*
- * Copyright 2006 Sascha Weinreuter
- *
- * 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.
- */
-package com.intellij.ui;
-
-import com.intellij.openapi.actionSystem.AnAction;
-import com.intellij.openapi.actionSystem.AnActionEvent;
-import com.intellij.openapi.actionSystem.CustomShortcutSet;
-
-import javax.swing.*;
-import java.awt.*;
-import java.awt.event.InputEvent;
-import java.awt.event.KeyEvent;
-
-/**
- * Provides Shift-Tab support in EditorTextFields which otherwise don't support this keystroke to
- * move the input focus to the previous component.
- */
-@SuppressWarnings({"ComponentNotRegistered"})
-public class ShiftTabAction extends AnAction {
-  private static final CustomShortcutSet SHIFT_TAB;
-
-  static {
-    final KeyStroke keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_MASK);
-    SHIFT_TAB = new CustomShortcutSet(keyStroke);
-  }
-
-  private final EditorTextField myEditor;
-
-  private ShiftTabAction(EditorTextField editor) {
-    super("Shift-Tab");
-    myEditor = editor;
-  }
-
-  public void actionPerformed(AnActionEvent event) {
-    Container container = myEditor.getParent();
-    while (container != null && container.getFocusTraversalPolicy() == null) {
-      container = container.getParent();
-    }
-    if (container != null) {
-      final FocusTraversalPolicy ftp = container.getFocusTraversalPolicy();
-      if (ftp != null) {
-        final Component prev = ftp.getComponentBefore(container, myEditor);
-        if (prev != null) {
-          prev.requestFocus();
-        }
-      }
-    }
-  }
-
-  /**
-   * Call this method to enable Sift-Tab support for the supplied EditorTextField.
-   */
-  public static void attachTo(EditorTextField textField) {
-    // TODO following code seems not needed due to textField.pleaseHandleShiftTab()
-    new ShiftTabAction(textField).registerCustomShortcutSet(SHIFT_TAB, textField);
-  }
-}

plugins/IntelliLang/java-support/org/intellij/plugins/intelliLang/AdvancedSettingsUI.java

@@ -27,7 +27,6 @@ import com.intellij.psi.JavaPsiFacade;
 import com.intellij.psi.PsiClass;
 import com.intellij.psi.search.GlobalSearchScope;
 import com.intellij.ui.ReferenceEditorWithBrowseButton;
-import com.intellij.ui.ShiftTabAction;
 import com.intellij.util.Function;
 import org.intellij.plugins.intelliLang.util.PsiUtilEx;
 import org.jetbrains.annotations.Nls;
@@ -75,7 +74,6 @@ public class AdvancedSettingsUI implements Configurable {
     }, myConfiguration.getLanguageAnnotationClass());
     myAnnotationField.addActionListener(new BrowseClassListener(project, myAnnotationField));
     myAnnotationField.setEnabled(!project.isDefault());
-    ShiftTabAction.attachTo(myAnnotationField.getEditorTextField());
     addField(myLanguageAnnotationPanel, myAnnotationField);
 
     myPatternField = new ReferenceEditorWithBrowseButton(null, project, new Function<String, Document>() {
@@ -85,7 +83,6 @@ public class AdvancedSettingsUI implements Configurable {
     }, myConfiguration.getPatternAnnotationClass());
     myPatternField.addActionListener(new BrowseClassListener(project, myPatternField));
     myPatternField.setEnabled(!project.isDefault());
-    ShiftTabAction.attachTo(myPatternField.getEditorTextField());
     addField(myPatternAnnotationPanel, myPatternField);
 
     mySubstField = new ReferenceEditorWithBrowseButton(null, project, new Function<String, Document>() {
@@ -95,10 +92,9 @@ public class AdvancedSettingsUI implements Configurable {
     }, myConfiguration.getPatternAnnotationClass());
     mySubstField.addActionListener(new BrowseClassListener(project, mySubstField));
     mySubstField.setEnabled(!project.isDefault());
-    ShiftTabAction.attachTo(mySubstField.getEditorTextField());
     addField(mySubstAnnotationPanel, mySubstField);
   }
-
+  //
   /**
    * Adds textfield into placeholder panel and assigns a directly preceding label
    */

plugins/IntelliLang/src/org/intellij/plugins/intelliLang/inject/config/ui/LanguagePanel.java

@@ -26,7 +26,6 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.ComboBox;
 import com.intellij.ui.ColoredListCellRendererWrapper;
 import com.intellij.ui.EditorTextField;
-import com.intellij.ui.ShiftTabAction;
 import com.intellij.ui.SimpleTextAttributes;
 import org.intellij.plugins.intelliLang.inject.InjectedLanguage;
 import org.intellij.plugins.intelliLang.inject.config.BaseInjection;
@@ -94,9 +93,6 @@ public class LanguagePanel extends AbstractInjectionPanel<BaseInjection> {
       public void ancestorMoved(AncestorEvent event) {
       }
     });
-
-    ShiftTabAction.attachTo(myPrefix);
-    ShiftTabAction.attachTo(mySuffix);
   }
 
   private void updateHighlighters() {