platform/lang-impl/src/com/intellij/openapi/projectRoots/ui/Util.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.openapi.projectRoots.ui;

import com.intellij.openapi.project.ProjectBundle;
import com.intellij.openapi.ui.InputValidator;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.VirtualFileManager;

import javax.swing.*;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * @author MYakovlev
 * Date: Oct 29, 2002
 * Time: 8:47:43 PM
 */
public class Util{

  public static VirtualFile showSpecifyJavadocUrlDialog(JComponent parent) {
    return showSpecifyJavadocUrlDialog(parent, "");
  }

  public static VirtualFile showSpecifyJavadocUrlDialog(JComponent parent, String initialValue){
    final String url = Messages.showInputDialog(parent, ProjectBundle.message("sdk.configure.javadoc.url.prompt"),
                                                ProjectBundle.message("sdk.configure.javadoc.url.title"), Messages.getQuestionIcon(), initialValue, new InputValidator() {
      @Override
      public boolean checkInput(String inputString) {
        return true;
      }
      @Override
      public boolean canClose(String inputString) {
        try {
          new URL(inputString);
          return true;
        }
        catch (MalformedURLException e1) {
          Messages.showErrorDialog(e1.getMessage(), ProjectBundle.message("sdk.configure.javadoc.url.title"));
        }
        return false;
      }
    });
    if (url == null) {
      return null;
    }
    return VirtualFileManager.getInstance().findFileByUrl(url);
  }


}