lang-impl/src/com/intellij/refactoring/actions/MoveAction.java

   1 package com.intellij.refactoring.actions;
   2
   3 import com.intellij.lang.Language;
   4 import com.intellij.openapi.actionSystem.DataContext;
   5 import com.intellij.psi.PsiElement;
   6 import com.intellij.refactoring.RefactoringActionHandler;
   7 import com.intellij.refactoring.move.MoveHandler;
   8 import org.jetbrains.annotations.NonNls;
   9
  10 public class MoveAction extends BaseRefactoringAction {
  11   @NonNls public static final String MOVE_PROVIDER = "MoveProvider";
  12
  13   private final MoveProvider myDefaultMoveProvider = new MoveProvider() {
  14     public boolean isEnabledOnDataContext(DataContext dataContext) {
  15       return false;
  16     }
  17
  18     public RefactoringActionHandler getHandler(DataContext dataContext) {
  19       return new MoveHandler();
  20     }
  21   };
  22
  23   public MoveAction() {
  24     setInjectedContext(true);
  25   }
  26
  27   public boolean isAvailableInEditorOnly() {
  28     return false;
  29   }
  30
  31   protected boolean isAvailableForLanguage(Language language){
  32     // move is supported in any language
  33     return true;
  34   }
  35
  36   public boolean isEnabledOnElements(PsiElement[] elements) {
  37     return MoveHandler.canMove(elements, null);
  38   }
  39
  40   protected boolean isEnabledOnDataContext(DataContext dataContext) {
  41     return getMoveProvider(dataContext).isEnabledOnDataContext(dataContext);
  42   }
  43
  44   private MoveProvider getMoveProvider(DataContext dataContext) {
  45     final MoveProvider moveProvider = (MoveProvider)dataContext.getData(MOVE_PROVIDER);
  46     if (moveProvider != null) {
  47       return moveProvider;
  48     }
  49
  50     return myDefaultMoveProvider;
  51   }
  52
  53   public RefactoringActionHandler getHandler(DataContext dataContext) {
  54     return getMoveProvider(dataContext).getHandler(dataContext);
  55   }
  56
  57   public interface MoveProvider {
  58     boolean isEnabledOnDataContext(DataContext dataContext);
  59     RefactoringActionHandler getHandler(DataContext dataContext);
  60   }
  61 }