platform/vcs-api/src/com/intellij/openapi/vcs/changes/committed/ChangeListFilteringStrategy.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.changes.committed;
  17
  18 import com.intellij.openapi.vcs.versionBrowser.CommittedChangeList;
  19 import org.jetbrains.annotations.NotNull;
  20 import org.jetbrains.annotations.Nullable;
  21
  22 import javax.swing.*;
  23 import javax.swing.event.ChangeListener;
  24 import java.util.List;
  25
  26 /**
  27  * @author yole
  28  */
  29 public interface ChangeListFilteringStrategy {
  30   @Nullable
  31   JComponent getFilterUI();
  32   void setFilterBase(List<CommittedChangeList> changeLists);
  33   void addChangeListener(ChangeListener listener);
  34   void removeChangeListener(ChangeListener listener);
  35
  36   @Nullable
  37   void resetFilterBase();
  38   void appendFilterBase(List<CommittedChangeList> changeLists);
  39
  40   @NotNull
  41   List<CommittedChangeList> filterChangeLists(List<CommittedChangeList> changeLists);
  42
  43   ChangeListFilteringStrategy NONE = new ChangeListFilteringStrategy() {
  44     public String toString() {
  45       return "None";
  46     }
  47
  48     @Nullable
  49     public JComponent getFilterUI() {
  50       return null;
  51     }
  52
  53     public void setFilterBase(List<CommittedChangeList> changeLists) {
  54     }
  55
  56     public void addChangeListener(ChangeListener listener) {
  57     }
  58
  59     public void removeChangeListener(ChangeListener listener) {
  60     }
  61
  62     @Nullable
  63     public void resetFilterBase() {
  64     }
  65
  66     public void appendFilterBase(List<CommittedChangeList> changeLists) {
  67     }
  68
  69     @NotNull
  70     public List<CommittedChangeList> filterChangeLists(List<CommittedChangeList> changeLists) {
  71       return changeLists;
  72     }
  73   };
  74 }