platform/platform-impl/src/com/intellij/openapi/diff/actions/IgnoreWhiteSpacesAction.java

   1 /*
   2  * Copyright 2000-2012 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.diff.actions;
  17
  18 import com.intellij.openapi.actionSystem.AnAction;
  19 import com.intellij.openapi.actionSystem.AnActionEvent;
  20 import com.intellij.openapi.actionSystem.DefaultActionGroup;
  21 import com.intellij.openapi.actionSystem.Presentation;
  22 import com.intellij.openapi.actionSystem.ex.ComboBoxAction;
  23 import com.intellij.openapi.diff.DiffBundle;
  24 import com.intellij.openapi.diff.ex.DiffPanelEx;
  25 import com.intellij.openapi.diff.impl.ComparisonPolicy;
  26 import com.intellij.openapi.diff.impl.DiffPanelImpl;
  27 import com.intellij.openapi.project.DumbAware;
  28 import com.intellij.openapi.project.DumbAwareAction;
  29 import com.intellij.util.containers.HashMap;
  30 import org.jetbrains.annotations.NotNull;
  31
  32 import javax.swing.*;
  33 import java.awt.*;
  34 import java.util.Map;
  35
  36 public class IgnoreWhiteSpacesAction extends ComboBoxAction implements DumbAware {
  37   private final Map<ComparisonPolicy, AnAction> myActions = new HashMap<ComparisonPolicy, AnAction>();
  38   private static final ComparisonPolicy[] ourActionOrder = new ComparisonPolicy[]{
  39     ComparisonPolicy.DEFAULT,
  40     ComparisonPolicy.TRIM_SPACE,
  41     ComparisonPolicy.IGNORE_SPACE};
  42
  43   public IgnoreWhiteSpacesAction() {
  44     myActions.put(ComparisonPolicy.DEFAULT, new IgnoringPolicyAction(DiffBundle.message("diff.acton.ignore.whitespace.policy.do.not.ignore"), ComparisonPolicy.DEFAULT));
  45     myActions.put(ComparisonPolicy.TRIM_SPACE, new IgnoringPolicyAction(DiffBundle.message("diff.acton.ignore.whitespace.policy.leading.and.trailing"), ComparisonPolicy.TRIM_SPACE));
  46     myActions.put(ComparisonPolicy.IGNORE_SPACE, new IgnoringPolicyAction(DiffBundle.message("diff.acton.ignore.whitespace.policy.all"), ComparisonPolicy.IGNORE_SPACE));
  47   }
  48
  49   @Override
  50   public JComponent createCustomComponent(final Presentation presentation) {
  51     JPanel panel = new JPanel(new BorderLayout());
  52     final JLabel label = new JLabel(DiffBundle.message("ignore.whitespace.acton.name"));
  53     label.setBorder(BorderFactory.createEmptyBorder(0, 4, 0, 4));
  54     panel.add(label, BorderLayout.WEST);
  55     panel.add(super.createCustomComponent(presentation), BorderLayout.CENTER);
  56     return panel;
  57   }
  58
  59   @NotNull
  60   protected DefaultActionGroup createPopupActionGroup(JComponent button) {
  61     DefaultActionGroup actionGroup = new DefaultActionGroup();
  62     for (ComparisonPolicy comparisonPolicy : ourActionOrder) {
  63       actionGroup.add(myActions.get(comparisonPolicy));
  64     }
  65     return actionGroup;
  66   }
  67
  68   public void update(AnActionEvent e) {
  69     super.update(e);
  70     Presentation presentation = e.getPresentation();
  71     DiffPanelEx diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
  72     if (diffPanel != null && diffPanel.getComponent().isDisplayable()) {
  73       AnAction action = myActions.get(diffPanel.getComparisonPolicy());
  74       Presentation templatePresentation = action.getTemplatePresentation();
  75       presentation.setIcon(templatePresentation.getIcon());
  76       presentation.setText(templatePresentation.getText());
  77       presentation.setEnabled(true);
  78     } else {
  79       presentation.setIcon(null);
  80       presentation.setText(DiffBundle.message("ignore.whitespace.action.not.available.action.name"));
  81       presentation.setEnabled(false);
  82     }
  83   }
  84
  85   private static class IgnoringPolicyAction extends DumbAwareAction {
  86     private final ComparisonPolicy myPolicy;
  87
  88     public IgnoringPolicyAction(String text, ComparisonPolicy policy) {
  89       super(text);
  90       myPolicy = policy;
  91     }
  92
  93     public void actionPerformed(AnActionEvent e) {
  94       final DiffPanelImpl diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
  95       if (diffPanel != null) {
  96         diffPanel.setComparisonPolicy(myPolicy);
  97       }
  98     }
  99   }
 100 }