http://www.intellij.net/tracker/idea/viewSCR?publicId=4710 fixed

openapi/src/com/intellij/openapi/vcs/VcsConfiguration.java

@@ -12,6 +12,10 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.components.ProjectComponent;
 import org.jdom.Element;
 
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Iterator;
+
 /**
  * author: lesya
  */
@@ -21,7 +25,9 @@ public final class VcsConfiguration implements JDOMExternalizable, ProjectCompon
   public boolean PUT_FOCUS_INTO_COMMENT = false;
   public boolean SHOW_CHECKIN_OPTIONS = true;
   public boolean FORCE_NON_EMPTY_COMMENT = false;
-  public String LAST_COMMIT_MESSAGE = "";
+
+  private ArrayList<String> myLastCommitMessages = new ArrayList<String>();
+
   public boolean SAVE_LAST_COMMIT_MESSAGE = true;
   public float CHECKIN_DIALOG_SPLITTER_PROPORTION = 0.8f;
 
@@ -40,6 +46,8 @@ public final class VcsConfiguration implements JDOMExternalizable, ProjectCompon
   public boolean SHOW_FILE_HISTORY_AS_TREE = false;
   public float FILE_HISTORY_SPLITTER_PROPORTION = 0.6f;
   public boolean SHOW_STATUS_OPTIONS = true;
+  private static final int MAX_STORED_MESSAGES = 10;
+  private static final String MESSAGE_ELEMENT_NAME = "MESSAGE";
 
   public static VcsConfiguration createEmptyConfiguration(Project project) {
     return new VcsConfiguration(project);
@@ -47,10 +55,20 @@ public final class VcsConfiguration implements JDOMExternalizable, ProjectCompon
 
   public void readExternal(Element element) throws InvalidDataException {
     DefaultJDOMExternalizer.readExternal(this, element);
+    final List messages = element.getChildren(MESSAGE_ELEMENT_NAME);
+    for (Iterator iterator = messages.iterator(); iterator.hasNext();) {
+      saveCommitMessage(((Element)iterator.next()).getText());
+    }
   }
 
   public void writeExternal(Element element) throws WriteExternalException {
     DefaultJDOMExternalizer.writeExternal(this, element);
+    for (Iterator<String> iterator = myLastCommitMessages.iterator(); iterator.hasNext();) {
+      String message = iterator.next();
+      final Element messageElement = new Element(MESSAGE_ELEMENT_NAME);
+      messageElement.setText(message);
+      element.addContent(messageElement);
+    }
   }
 
   public static VcsConfiguration getInstance(Project project) {
@@ -93,4 +111,24 @@ public final class VcsConfiguration implements JDOMExternalizable, ProjectCompon
     }
 
   }
+
+  public void saveCommitMessage(final String comment) {
+    while (myLastCommitMessages.size() >= MAX_STORED_MESSAGES) {
+      myLastCommitMessages.remove(0);
+    }
+    myLastCommitMessages.add(comment);
+  }
+
+  public String getLastCommitMessage() {
+    if (myLastCommitMessages.isEmpty()) {
+      return null;
+    }
+    else {
+      return myLastCommitMessages.get(myLastCommitMessages.size() - 1);
+    }
+  }
+
+  public ArrayList<String> getRecentMessages() {
+    return myLastCommitMessages;
+  }
 }

openapi/src/com/intellij/openapi/vcs/ui/CommitMessage.java

@@ -0,0 +1,106 @@
+package com.intellij.openapi.vcs.ui;
+
+import com.intellij.ui.ColoredListCellRenderer;
+import com.intellij.ui.SimpleTextAttributes;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+public class CommitMessage extends JPanel{
+
+  private final JTextArea myCommentArea = new JTextArea();
+  private final JComboBox myRecentMessages = new JComboBox();
+
+  class RecentMessage {
+    private final boolean canBeInserted;
+    private final String myPresentation;
+    private final String myValue;
+
+    public RecentMessage(final boolean canBeInserted, final String presentation, final String value) {
+      this.canBeInserted = canBeInserted;
+      myPresentation = presentation;
+      myValue = value;
+    }
+
+    public boolean isCanBeInserted() {
+      return canBeInserted;
+    }
+
+    public String getPresentation() {
+      return myPresentation;
+    }
+
+    public String getValue() {
+      return myValue;
+    }
+  }
+
+  public CommitMessage(ArrayList<String> recentMessages) {
+    super(new BorderLayout());
+    add(new JScrollPane(myCommentArea), BorderLayout.CENTER);
+    add(new JLabel("Comment:"), BorderLayout.NORTH);
+    if (!recentMessages.isEmpty()) {
+      add(myRecentMessages, BorderLayout.SOUTH);
+
+      myRecentMessages.addItem(new RecentMessage(false, "<Recent messages>", null));
+
+      for (Iterator<String> iterator = recentMessages.iterator(); iterator.hasNext();) {
+        String s = iterator.next();
+        myRecentMessages.addItem(new RecentMessage(true, createPresentation(s), s));
+      }
+
+      myRecentMessages.setRenderer(new ColoredListCellRenderer() {
+        protected void customizeCellRenderer(
+          JList list,
+          Object value,
+          int index,
+          boolean selected,
+          boolean hasFocus
+          ) {
+          if (value instanceof RecentMessage) {
+            append(((RecentMessage)value).getPresentation(), SimpleTextAttributes.REGULAR_ATTRIBUTES);
+          }
+        }
+      });
+
+      myRecentMessages.addActionListener(new ActionListener() {
+        public void actionPerformed(ActionEvent e) {
+          final Object selectedItem = myRecentMessages.getSelectedItem();
+          if (selectedItem instanceof RecentMessage && ((RecentMessage)selectedItem).canBeInserted) {
+            setText(((RecentMessage)selectedItem).getValue());
+          }
+        }
+      });
+    }
+  }
+
+  private String createPresentation(final String s) {
+    String converted = s.replaceAll("\n", " ");
+    if (converted.length() < 20) {
+      return converted;
+    } else {
+      return converted.substring(0, 20) + "...";
+    }
+  }
+
+  public void setText(final String initialMessage) {
+    myCommentArea.setText(initialMessage);
+  }
+
+  public String getComment() {
+    return myCommentArea.getText().trim();
+  }
+
+  public void init() {
+    myCommentArea.setRows(3);
+    myCommentArea.setWrapStyleWord(true);
+    myCommentArea.setLineWrap(true);
+    myCommentArea.setSelectionStart(0);
+    myCommentArea.setSelectionEnd(myCommentArea.getText().length());
+
+  }
+}