platform/platform-impl/src/com/intellij/openapi/diff/actions/IgnoreWhiteSpacesAction.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.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.util.containers.HashMap;
  29 import org.jetbrains.annotations.NotNull;
  30
  31 import javax.swing.*;
  32 import java.awt.*;
  33 import java.util.Map;
  34
  35 public class IgnoreWhiteSpacesAction extends ComboBoxAction implements DumbAware {
  36   private final Map<ComparisonPolicy, AnAction> myActions = new HashMap<ComparisonPolicy, AnAction>();
  37   private static final ComparisonPolicy[] ourActionOrder = new ComparisonPolicy[]{
  38     ComparisonPolicy.DEFAULT,
  39     ComparisonPolicy.TRIM_SPACE,
  40     ComparisonPolicy.IGNORE_SPACE};
  41
  42   public IgnoreWhiteSpacesAction() {
  43     myActions.put(ComparisonPolicy.DEFAULT, new IgnoringPolicyAction(DiffBundle.message("diff.acton.ignore.qhitespace.policy.do.not.ignore"), ComparisonPolicy.DEFAULT));
  44     myActions.put(ComparisonPolicy.TRIM_SPACE, new IgnoringPolicyAction(
  45       DiffBundle.message("diff.acton.ignore.qhitespace.policy.leading.and.trailing"), ComparisonPolicy.TRIM_SPACE));
  46     myActions.put(ComparisonPolicy.IGNORE_SPACE, new IgnoringPolicyAction(DiffBundle.message("diff.acton.ignore.qhitespace.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("comparison.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     Presentation presentation = e.getPresentation();
  70     DiffPanelEx diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
  71     if (diffPanel != null && diffPanel.getComponent().isDisplayable()) {
  72       AnAction action = myActions.get(diffPanel.getComparisonPolicy());
  73       Presentation templatePresentation = action.getTemplatePresentation();
  74       presentation.setIcon(templatePresentation.getIcon());
  75       presentation.setText(templatePresentation.getText());
  76       presentation.setEnabled(true);
  77     } else {
  78       presentation.setIcon(null);
  79       presentation.setText(DiffBundle.message("ignore.whitespace.action.not.avaliable.action.name"));
  80       presentation.setEnabled(false);
  81     }
  82   }
  83
  84   private static class IgnoringPolicyAction extends AnAction {
  85     private final ComparisonPolicy myPolicy;
  86
  87     public IgnoringPolicyAction(String text, ComparisonPolicy policy) {
  88       super(text);
  89       myPolicy = policy;
  90     }
  91
  92     public void actionPerformed(AnActionEvent e) {
  93       final DiffPanelImpl diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
  94       if (diffPanel != null) {
  95         diffPanel.setComparisonPolicy(myPolicy);
  96       }
  97     }
  98   }
  99 }