platform/lang-impl/src/com/intellij/ui/StringComboboxEditor.java

   1 package com.intellij.ui;
   2
   3 import com.intellij.openapi.application.Result;
   4 import com.intellij.openapi.command.WriteCommandAction;
   5 import com.intellij.openapi.diagnostic.Logger;
   6 import com.intellij.openapi.editor.Document;
   7 import com.intellij.openapi.fileTypes.FileType;
   8 import com.intellij.openapi.fileTypes.StdFileTypes;
   9 import com.intellij.openapi.project.Project;
  10 import com.intellij.openapi.ui.ComboBox;
  11 import com.intellij.openapi.util.Key;
  12 import com.intellij.psi.PsiDocumentManager;
  13 import com.intellij.psi.PsiFile;
  14 import com.intellij.psi.PsiFileFactory;
  15
  16 import javax.swing.*;
  17
  18 /**
  19  * ComboBox with Editor and Strings as item
  20  * @author dsl
  21  */
  22 public class StringComboboxEditor extends EditorComboBoxEditor {
  23   public static final Key<JComboBox> COMBO_BOX_KEY = Key.create("COMBO_BOX_KEY");
  24
  25   private static final Logger LOG = Logger.getInstance("#com.intellij.ui.StringComboboxEditor");
  26   private final Project myProject;
  27
  28   public StringComboboxEditor(final Project project, final FileType fileType, ComboBox comboBox) {
  29     super(project, fileType);
  30     myProject = project;
  31     final PsiFile file = PsiFileFactory.getInstance(project).createFileFromText("a.dummy", StdFileTypes.PLAIN_TEXT, "", 0, true);
  32     final Document document = PsiDocumentManager.getInstance(project).getDocument(file);
  33     assert document != null;
  34     document.putUserData(COMBO_BOX_KEY, comboBox);
  35     super.setItem(document);
  36   }
  37
  38   public Object getItem() {
  39     final String text = ((Document) super.getItem()).getText();
  40     LOG.assertTrue(text != null);
  41     return text;
  42   }
  43
  44   public void setItem(Object anObject) {
  45     if (anObject == null) anObject = "";
  46     if (anObject.equals(getItem())) return;
  47     final String s = (String)anObject;
  48     new WriteCommandAction(myProject) {
  49       protected void run(Result result) throws Throwable {
  50         getDocument().setText(s);
  51       }
  52     }.execute();
  53   }
  54 }