platform/vcs-impl/src/com/intellij/openapi/vcs/impl/BackgroundableActionEnabledHandler.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.openapi.vcs.impl;
  17
  18 import com.intellij.openapi.application.ApplicationManager;
  19
  20 import java.util.HashSet;
  21 import java.util.Set;
  22
  23 public class BackgroundableActionEnabledHandler {
  24   private final Set<Object> myInProgress;
  25
  26   public BackgroundableActionEnabledHandler() {
  27     myInProgress = new HashSet<Object>();
  28   }
  29
  30   public void register(final Object path) {
  31     ApplicationManager.getApplication().assertIsDispatchThread();
  32     myInProgress.add(path);
  33   }
  34
  35   public boolean isInProgress(final Object path) {
  36     ApplicationManager.getApplication().assertIsDispatchThread();
  37     return myInProgress.contains(path);
  38   }
  39
  40   public void completed(final Object path) {
  41     ApplicationManager.getApplication().assertIsDispatchThread();
  42     myInProgress.remove(path);
  43   }
  44 }