Package org.eclipse.jst.pagedesigner.ui.dialogfields

Source Code of org.eclipse.jst.pagedesigner.ui.dialogfields.ClasspathResourceButtonDialogField

/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*     Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.ui.dialogfields;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.window.Window;
import org.eclipse.jst.jsf.common.ui.IFileFolderConstants;
import org.eclipse.jst.jsf.common.ui.JSFUICommonPlugin;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.DialogField;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.IStringButtonAdapter;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.StringButtonDialogField;
import org.eclipse.jst.jsf.common.ui.internal.dialogs.ResourceOnClasspathDialog;
import org.eclipse.jst.pagedesigner.properties.attrgroup.IElementContextable;
import org.eclipse.jst.pagedesigner.utils.StructuredModelUtil;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;

/**
* @author mengbo
*/
public class ClasspathResourceButtonDialogField extends StringButtonDialogField implements IElementContextable
{

  private static final String[] PROPERTIES_FILES_SUFFIXS = new String[] { IFileFolderConstants.EXT_PROPERTIES };

  private static class MyStringButtonAdapter implements IStringButtonAdapter
  {
    private IProject _project;

    public void changeControlPressed(DialogField field) {
      browseButtonPressed(field);
    }

    private void browseButtonPressed(DialogField field)
    {
      if (field instanceof ClasspathResourceButtonDialogField)
      {
        ClasspathResourceButtonDialogField classPathField =
          (ClasspathResourceButtonDialogField) field;
        Shell shell = field.getShell();
        ResourceOnClasspathDialog dialog =
          new ResourceOnClasspathDialog(shell, getJavaProject());
        dialog.setTitle(JSFUICommonPlugin
            .getResourceString("DialogField.ResourceButton.SelectFile"));//$NON-NLS-1$
        dialog.setSuffixs(PROPERTIES_FILES_SUFFIXS);
        if (dialog.open() == Window.OK) {
          String oldValue = classPathField.getText();
 
          String newValue = (String) dialog.getResult()[0];
          if (oldValue != newValue) {
            classPathField.setText(newValue);
          }
        }
      }
    }
   
    private IJavaProject getJavaProject() {
      try {
        if (_project != null && _project.hasNature(JavaCore.NATURE_ID)) {
          return JavaCore.create(_project);
        }
              return null;
      } catch (CoreException e) {
        return null;
      }
    }
  }
 
  /**
s   */
  public ClasspathResourceButtonDialogField() {
    super(new MyStringButtonAdapter());
  }

  public void setElementContext(
      org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode ancester,
      IDOMElement element) {
    IProject prj = StructuredModelUtil.getProjectFor(ancester.getModel());
   
    IStringButtonAdapter adapter = getStringButtonAdapter();
   
    if (adapter instanceof MyStringButtonAdapter)
    {
      ((MyStringButtonAdapter)adapter)._project = prj;
    }
  }
}
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