SelectIssueWizardPage.java :  » ERP-CRM-Financial » JFire-1.0.1 » org » nightlabs » jfire » issuetracking » ui » issuelink » attach » Java Open Source

package org.nightlabs.jfire.issuetracking.ui.issuelink.attach;

import javax.jdo.JDOHelper;

import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.nightlabs.base.ui.composite.XComposite;
import org.nightlabs.base.ui.composite.XComposite.LayoutDataMode;
import org.nightlabs.base.ui.composite.XComposite.LayoutMode;
import org.nightlabs.base.ui.resource.SharedImages;
import org.nightlabs.base.ui.table.AbstractTableComposite;
import org.nightlabs.base.ui.wizard.WizardHop;
import org.nightlabs.base.ui.wizard.WizardHopPage;
import org.nightlabs.jdo.ObjectID;
import org.nightlabs.jfire.idgenerator.IDGenerator;
import org.nightlabs.jfire.issue.Issue;
import org.nightlabs.jfire.issue.IssueLinkType;
import org.nightlabs.jfire.issuetracking.ui.IssueTrackingPlugin;
import org.nightlabs.jfire.issuetracking.ui.issue.create.CreateIssueDetailWizardPage;
import org.nightlabs.jfire.issuetracking.ui.overview.IssueEntryListFactory;
import org.nightlabs.jfire.issuetracking.ui.overview.IssueEntryListViewer;
import org.nightlabs.jfire.issuetracking.ui.resource.Messages;

/**
 * @author Chairat Kongarayawetchakun <!-- chairat [AT] nightlabs [DOT] de -->
 */
public class SelectIssueWizardPage
extends WizardHopPage
{
  //Issue
  private Button createNewIssueRadio;
  private Button selectExistingIssueRadio;

  private Composite issueEntryListViewerComposite;
  private IssueEntryListViewer issueEntryListViewer;

  //Used Objects
  private Issue selectedIssue;
  private Object attachedObject;

  public static enum ActionForIssue {
    createNewIssue,
    selectExistingIssue
  }

  private ActionForIssue actionForIssue;

  public ActionForIssue getIssueAction() {
    return actionForIssue;
  }

  public void setIssueAction(ActionForIssue actionForIssue) {
    this.actionForIssue = actionForIssue;
    createNewIssueRadio.setSelection(false);
    selectExistingIssueRadio.setSelection(false);

    switch (actionForIssue) {
      case createNewIssue:
        createNewIssueRadio.setSelection(true);
        break;
      case selectExistingIssue:
        selectExistingIssueRadio.setSelection(true);
        break;
      default:
        throw new IllegalStateException("Unknown actionForIssue: " + actionForIssue); //$NON-NLS-1$
    }

    getContainer().updateButtons();
  }

  public SelectIssueWizardPage(Object attachedObject) {
    super(SelectIssueWizardPage.class.getName(), Messages.getString("org.nightlabs.jfire.issuetracking.ui.issuelink.attach.SelectIssueWizardPage.titleDefault"), SharedImages.getWizardPageImageDescriptor(IssueTrackingPlugin.getDefault(), SelectIssueWizardPage.class)); //$NON-NLS-1$
    this.attachedObject = attachedObject;

    setTitle(Messages.getString("org.nightlabs.jfire.issuetracking.ui.issuelink.attach.SelectIssueWizardPage.title")); //$NON-NLS-1$

    String objectNameString = attachedObject.getClass().getSimpleName();
    setDescription(Messages.getString("org.nightlabs.jfire.issuetracking.ui.issuelink.attach.SelectIssueWizardPage.description") + objectNameString); //$NON-NLS-1$
  }

  @Override
  public Control createPageContents(Composite parent) {
    XComposite mainComposite = new XComposite(parent, SWT.NONE, LayoutMode.TIGHT_WRAPPER, LayoutDataMode.GRID_DATA);
    mainComposite.getGridLayout().numColumns = 1;

    //Issue
    createNewIssueRadio = new Button(mainComposite, SWT.RADIO);
    createNewIssueRadio.setText(Messages.getString("org.nightlabs.jfire.issuetracking.ui.issuelink.attach.SelectIssueWizardPage.radio.createNewIssue.text")); //$NON-NLS-1$
    createNewIssueRadio.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    createNewIssueRadio.addSelectionListener(new SelectionAdapter() {
      @Override
      public void widgetSelected(SelectionEvent e) {
        setIssueAction(ActionForIssue.createNewIssue);
      }
    });

    selectExistingIssueRadio = new Button(mainComposite, SWT.RADIO);
    selectExistingIssueRadio.setText(Messages.getString("org.nightlabs.jfire.issuetracking.ui.issuelink.attach.SelectIssueWizardPage.radio.selectExistingIssue.text")); //$NON-NLS-1$
    selectExistingIssueRadio.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    selectExistingIssueRadio.addSelectionListener(new SelectionAdapter() {
      @Override
      public void widgetSelected(SelectionEvent e) {
        setIssueAction(ActionForIssue.selectExistingIssue);
      }
    });


    issueEntryListViewer = new IssueEntryListViewer(new IssueEntryListFactory().createEntry()) {
      @Override
      protected void addResultTableListeners(AbstractTableComposite<Issue> tableComposite) {
        tableComposite.addDoubleClickListener(new IDoubleClickListener() {
          @Override
          public void doubleClick(DoubleClickEvent evt) {
            // Do nothing!!!
            // --> Or maybe we can already react for 'Finish' on the double-click (which will standardise with the rest)? Kai.
            issueDoubleClick();
          }
        });

        tableComposite.addSelectionChangedListener(new ISelectionChangedListener() {
          public void selectionChanged(SelectionChangedEvent e) {
            selectedIssue = issueEntryListViewer.getIssueTable().getFirstSelectedElement();
            setIssueAction(ActionForIssue.selectExistingIssue);
            getContainer().updateButtons();
          }
        });
      }
    };

    issueEntryListViewerComposite = issueEntryListViewer.createComposite(mainComposite);
    GridData gridData = new GridData(GridData.FILL_BOTH);
    issueEntryListViewerComposite.setLayoutData(gridData);

    Display.getDefault().asyncExec(new Runnable() {
      public void run() {
        getShell().layout(true, true);
        issueEntryListViewer.search();
        setIssueAction(ActionForIssue.selectExistingIssue);
      }
    });

    issueEntryListViewer.getIssueTable().setIsTableInWizard(true);

    return mainComposite;
  }

  @Override
  public boolean isPageComplete() {
    if (createNewIssueRadio == null) // check if UI is already created
      return false;

    if (actionForIssue != null)
      switch (actionForIssue) {
        case createNewIssue:
          if (newIssue == null) {
            newIssue = new Issue(IDGenerator.getOrganisationID(), IDGenerator.nextID(Issue.class));
            newIssue.createIssueLink(issueLinkType, (ObjectID)JDOHelper.getObjectId(attachedObject), attachedObject.getClass());
            createIssueGeneralWizardPage = new CreateIssueDetailWizardPage(newIssue);
            new WizardHop(this);
            getWizardHop().addHopPage(createIssueGeneralWizardPage);
          }
          return false;
        case selectExistingIssue:
          return selectedIssue != null;
        default:
          throw new IllegalStateException("Unknown actionForIssueLinkType: " + actionForIssue); //$NON-NLS-1$
      }

    else
      return false;
  }

  /**
   * React on the double-click event on the selected Issue from the table,
   */
  protected void issueDoubleClick() {
    if (getContainer() instanceof WizardDialog) {
      if (isPageComplete() && getWizard().performFinish()) {
        ((WizardDialog) getContainer()).close();
      }
    }
  }


//  @Override
//  public void onFinish() {
//    selectedIssue.createIssueLink(issueLinkType, linkedObject)
//  }

  private Issue newIssue;
  private CreateIssueDetailWizardPage createIssueGeneralWizardPage;
  @Override
  public boolean canFlipToNextPage() {
    return actionForIssue == ActionForIssue.createNewIssue;
  }

  @Override
  public boolean canBeLastPage() {
    return super.canBeLastPage();
  }

  public Issue getIssue() {
    switch (actionForIssue) {
    case createNewIssue:
      return newIssue;
    case selectExistingIssue:
      return selectedIssue;
    }

    return null;
  }

  private IssueLinkType issueLinkType;
  public void setIssueLinkType(IssueLinkType issueLinkType) {
    this.issueLinkType = issueLinkType;
  }
}