UpdateSiteProvisionerDialog.java :  » IDE-Eclipse » Eclipse-plug-in-development » org » eclipse » pde » internal » ui » wizards » provisioner » update » Java Open Source

/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.pde.internal.ui.wizards.provisioner.update;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.StatusDialog;
import org.eclipse.pde.core.plugin.TargetPlatform;
import org.eclipse.pde.internal.ui.PDEPlugin;
import org.eclipse.pde.internal.ui.PDEUIMessages;
import org.eclipse.pde.internal.ui.util.SWTUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class UpdateSiteProvisionerDialog extends StatusDialog {

  private Text fInstallLocationText;
  private Label fInstallLocationLabel;
  private Text fSiteLocationText;
  private Label fSiteLocationLabel;
  private IUpdateSiteProvisionerEntry fEntry;
  private IStatus fOkStatus;
  private IStatus fErrorStatus;

  private String fInstallLocation;
  private String fSiteLocation;

  public UpdateSiteProvisionerDialog(Shell parent, String installLocation, String siteLocation, String title) {
    super(parent);
    setShellStyle(getShellStyle() | SWT.RESIZE);
    fInstallLocation = installLocation;
    fSiteLocation = siteLocation;
    setTitle(title); 
  }

  protected Control createDialogArea(Composite parent) {
    Composite container = new Composite(parent, SWT.RESIZE);
    GridLayout layout = new GridLayout();
    layout.numColumns = 3;
    layout.marginHeight = layout.marginWidth = 10;
    container.setLayout(layout);
    container.setLayoutData(new GridData(GridData.FILL_BOTH));

    createEntry(container);

    // add modify listeners
    ModifyListener listener = new ModifyListener() {
      public void modifyText(ModifyEvent e) {
        dialogChanged();
      }
    };
    fInstallLocationText.addModifyListener(listener);
    fSiteLocationText.addModifyListener(listener);
    Dialog.applyDialogFont(container);

    dialogChanged();

    return container;
  }

  protected void createEntry(Composite container) {
    fSiteLocationLabel = new Label(container, SWT.NONE);
    fSiteLocationLabel.setText(PDEUIMessages.UpdateSiteProvisionerDialog_siteLocation);

    fSiteLocationText = new Text(container, SWT.SINGLE | SWT.BORDER);
    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
    gd.horizontalSpan = 2;
    fSiteLocationText.setLayoutData(gd);
    if(fSiteLocation != null)
      fSiteLocationText.setText(fSiteLocation);

    fInstallLocationLabel = new Label(container, SWT.NULL);
    fInstallLocationLabel.setText(PDEUIMessages.UpdateSiteProvisionerDialog_installLocation); 

    fInstallLocationText = new Text(container, SWT.SINGLE | SWT.BORDER);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    gd.widthHint = 250;
    fInstallLocationText.setLayoutData(gd);
    if(fInstallLocation != null)
      fInstallLocationText.setText(fInstallLocation);

    Button fs = new Button(container, SWT.PUSH);
    fs.setText(PDEUIMessages.UpdateSiteProvisionerDialog_fileSystem);
    fs.setLayoutData(new GridData());
    fs.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        handleBrowseFileSystem();
      }
    });
    SWTUtil.setButtonDimensionHint(fs);
  }

  private IStatus createErrorStatus(String message) {
    return new Status(IStatus.ERROR, PDEPlugin.getPluginId(), IStatus.OK,
        message, null);
  }

  private void dialogChanged() {
    IStatus status = null;
    if(fInstallLocationText.getText().length() == 0 && fSiteLocationText.getText().length() == 0)
      status = getEmptyErrorStatus();

    if (status == null)
      status = getOKStatus();
    updateStatus(status);
  }

  private IStatus getOKStatus() {
    if (fOkStatus == null)
      fOkStatus = new Status(IStatus.OK, PDEPlugin.getPluginId(),
          IStatus.OK, "", //$NON-NLS-1$
          null);
    return fOkStatus;
  }

  private IStatus getEmptyErrorStatus() {
    if (fErrorStatus == null)
      fErrorStatus = createErrorStatus(PDEUIMessages.UpdateSiteProvisionerDialog_missBothErrorMessage); 
    return fErrorStatus;
  }

  protected void handleBrowseFileSystem() {
    DirectoryDialog dialog = new DirectoryDialog(getShell());

    String text = fInstallLocationText.getText();
    if(text == null || text.length() == 0) {
      dialog.setFilterPath(TargetPlatform.getLocation());
    } else {
      dialog.setFilterPath(fInstallLocationText.getText());
    }
    dialog.setText(PDEUIMessages.BaseBlock_dirSelection); 
    dialog.setMessage(PDEUIMessages.BaseBlock_dirChoose); 
    String result = dialog.open();
    if (result != null) {
      fInstallLocationText.setText(result);
    }
  }

  protected void okPressed() {
    fEntry = new UpdateSiteProvisionerEntry(
        fInstallLocationText.getText(), 
        fSiteLocationText.getText());
    super.okPressed();
  }

  public IUpdateSiteProvisionerEntry getEntry() {
    return fEntry;
  }

}