text: /*! ******************************************************************************
   *
   * Pentaho Data Integration
   *
   * Copyright (C) 2002-2018 by Hitachi Vantara : http://www.pentaho.com
   *
   *******************************************************************************
   *
   * 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 org.pentaho.di.ui.job.entries.abort;
  
  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.events.ShellAdapter;
  import org.eclipse.swt.events.ShellEvent;
  import org.eclipse.swt.layout.FormAttachment;
  import org.eclipse.swt.layout.FormData;
  import org.eclipse.swt.layout.FormLayout;
  import org.eclipse.swt.widgets.Button;
  import org.eclipse.swt.widgets.Display;
  import org.eclipse.swt.widgets.Event;
  import org.eclipse.swt.widgets.Label;
  import org.eclipse.swt.widgets.Listener;
  import org.eclipse.swt.widgets.MessageBox;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.swt.widgets.Text;
  import org.pentaho.di.core.Const;
  import org.pentaho.di.core.annotations.PluginDialog;
  import org.pentaho.di.core.util.Utils;
  import org.pentaho.di.i18n.BaseMessages;
  import org.pentaho.di.job.JobMeta;
  import org.pentaho.di.job.entries.abort.JobEntryAbort;
  import org.pentaho.di.job.entry.JobEntryDialogInterface;
  import org.pentaho.di.job.entry.JobEntryInterface;
  import org.pentaho.di.repository.Repository;
  import org.pentaho.di.ui.core.gui.WindowProperty;
  import org.pentaho.di.ui.core.widget.TextVar;
  import org.pentaho.di.ui.job.dialog.JobDialog;
  import org.pentaho.di.ui.job.entry.JobEntryDialog;
  import org.pentaho.di.ui.trans.step.BaseStepDialog;
  
  /**
   * This dialog allows you to edit a JobEntry Abort object.
   *
   * @author Samatar
   * @since 10-03-2007
   */
  @PluginDialog( id = "ABORT", image = "ABR.svg", pluginType = PluginDialog.PluginType.JOBENTRY,
    documentationUrl = "http://wiki.pentaho.com/display/EAI/Abort+Job" )
  public class JobEntryAbortDialog extends JobEntryDialog implements JobEntryDialogInterface {
    private static Class<?> PKG = JobEntryAbortDialog.class; // for i18n purposes, needed by Translator2!!
  
    private Text wName;
  
    private Button wOK, wCancel;
  
    private Listener lsOK, lsCancel;
  
    private JobEntryAbort jobEntry;
  
    private Shell shell;
  
    private SelectionAdapter lsDef;
  
    private boolean changed;
  
    private TextVar wMessageAbort;
  
    public JobEntryAbortDialog( Shell parent, JobEntryInterface jobEntryInt, Repository rep, JobMeta jobMeta ) {
      super( parent, jobEntryInt, rep, jobMeta );
      jobEntry = (JobEntryAbort) jobEntryInt;
      if ( this.jobEntry.getName() == null ) {
        this.jobEntry.setName( BaseMessages.getString( PKG, "JobEntryAbortDialog.Jobname.Label" ) );
      }
    }
  
    public JobEntryInterface open() {
      Shell parent = getParent();
      Display display = parent.getDisplay();
  
      shell = new Shell( parent, props.getJobsDialogStyle() );
      props.setLook( shell );
      JobDialog.setShellImage( shell, jobEntry );
  
      ModifyListener lsMod = new ModifyListener() {
        public void modifyText( ModifyEvent e ) {
          jobEntry.setChanged();
        }
      };
      changed = jobEntry.hasChanged();
  
      FormLayout formLayout = new FormLayout();
      formLayout.marginWidth = Const.FORM_MARGIN;
      formLayout.marginHeight = Const.FORM_MARGIN;
  
      shell.setLayout( formLayout );
      shell.setText( BaseMessages.getString( PKG, "JobEntryAbortDialog.Title" ) );
  
      int middle = props.getMiddlePct();
      int margin = Const.MARGIN;
  
      // Filename line
      Label wlName = new Label( shell, SWT.RIGHT );
      wlName.setText( BaseMessages.getString( PKG, "JobEntryAbortDialog.Label" ) );
      props.setLook( wlName );
      FormData fdlName = new FormData();
      fdlName.left = new FormAttachment( 0, 0 );
      fdlName.right = new FormAttachment( middle, -margin );
      fdlName.top = new FormAttachment( 0, margin );
      wlName.setLayoutData( fdlName );
      wName = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
      props.setLook( wName );
      wName.addModifyListener( lsMod );
      FormData fdName = new FormData();
      fdName.left = new FormAttachment( middle, 0 );
      fdName.top = new FormAttachment( 0, margin );
      fdName.right = new FormAttachment( 100, 0 );
      wName.setLayoutData( fdName );
  
      // Message line
      Label wlMessageAbort = new Label( shell, SWT.RIGHT );
      wlMessageAbort.setText( BaseMessages.getString( PKG, "JobEntryAbortDialog.MessageAbort.Label" ) );
      props.setLook( wlMessageAbort );
      FormData fdlMessageAbort = new FormData();
      fdlMessageAbort.left = new FormAttachment( 0, 0 );
      fdlMessageAbort.right = new FormAttachment( middle, 0 );
      fdlMessageAbort.top = new FormAttachment( wName, margin );
      wlMessageAbort.setLayoutData( fdlMessageAbort );
  
      wMessageAbort = new TextVar( jobMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
      props.setLook( wMessageAbort );
      wMessageAbort.setToolTipText( BaseMessages.getString( PKG, "JobEntryAbortDialog.MessageAbort.Tooltip" ) );
      wMessageAbort.addModifyListener( lsMod );
      FormData fdMessageAbort = new FormData();
      fdMessageAbort.left = new FormAttachment( middle, 0 );
      fdMessageAbort.top = new FormAttachment( wName, margin );
      fdMessageAbort.right = new FormAttachment( 100, 0 );
      wMessageAbort.setLayoutData( fdMessageAbort );
  
      wOK = new Button( shell, SWT.PUSH );
      wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
      wCancel = new Button( shell, SWT.PUSH );
      wCancel.setText( BaseMessages.getString( PKG, "System.Button.Cancel" ) );
  
      // at the bottom
      BaseStepDialog.positionBottomButtons( shell, new Button[] { wOK, wCancel }, margin, wMessageAbort );
  
      // Add listeners
      lsCancel = new Listener() {
        public void handleEvent( Event e ) {
          cancel();
        }
      };
  
      lsOK = new Listener() {
        public void handleEvent( Event e ) {
          ok();
        }
      };
  
      wCancel.addListener( SWT.Selection, lsCancel );
      wOK.addListener( SWT.Selection, lsOK );
  
      lsDef = new SelectionAdapter() {
        public void widgetDefaultSelected( SelectionEvent e ) {
          ok();
        }
      };
  
      wName.addSelectionListener( lsDef );
  
      // Detect X or ALT-F4 or something that kills this window...
      shell.addShellListener( new ShellAdapter() {
        public void shellClosed( ShellEvent e ) {
          cancel();
        }
      } );
  
      getData();
  
      BaseStepDialog.setSize( shell );
  
      shell.open();
      props.setDialogSize( shell, "JobAbortDialogSize" );
      while ( !shell.isDisposed() ) {
        if ( !display.readAndDispatch() ) {
          display.sleep();
        }
      }
      return jobEntry;
    }
  
    public void dispose() {
      WindowProperty winprop = new WindowProperty( shell );
      props.setScreen( winprop );
      shell.dispose();
    }
  
    /**
     * Copy information from the meta-data input to the dialog fields.
     */
    public void getData() {
      if ( jobEntry.getName() != null ) {
        wName.setText( jobEntry.getName() );
      }
      if ( jobEntry.getMessageabort() != null ) {
        wMessageAbort.setText( jobEntry.getMessageabort() );
      }
  
      wName.selectAll();
      wName.setFocus();
    }
  
    private void cancel() {
      jobEntry.setChanged( changed );
      jobEntry = null;
      dispose();
    }
  
    private void ok() {
      if ( Utils.isEmpty( wName.getText() ) ) {
        MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
        mb.setText( BaseMessages.getString( PKG, "System.StepJobEntryNameMissing.Title" ) );
        mb.setMessage( BaseMessages.getString( PKG, "System.JobEntryNameMissing.Msg" ) );
        mb.open();
        return;
      }
      jobEntry.setName( wName.getText() );
      jobEntry.setMessageabort( wMessageAbort.getText() );
      dispose();
    }
  }
  