public EngineMetaInterface getActiveMeta() {
    TabSet tabfolder = spoon.tabfolder;
    if (tabfolder == null) {
      return null;
    }
    TabItem tabItem = tabfolder.getSelected();
    if (tabItem == null) {
      return null;
    }

    // What transformation is in the active tab?
    // TransLog, TransGraph & TransHist contain the same transformation
    //
    TabMapEntry mapEntry = getTab(tabfolder.getSelected());
    EngineMetaInterface meta = null;
    if (mapEntry != null) {
      if (mapEntry.getObject() instanceof TransGraph) {
        meta = (mapEntry.getObject()).getMeta();
      }
      if (mapEntry.getObject() instanceof JobGraph) {
        meta = (mapEntry.getObject()).getMeta();
      }
    }

    return meta;
  }
  public void tabSelected(TabItem item) {
    List<TabMapEntry> collection = spoon.delegates.tabs.getTabs();

    // See which core objects to show
    //
    for (TabMapEntry entry : collection) {
      if (item.equals(entry.getTabItem())) {
        // TabItemInterface itemInterface = entry.getObject();

        //
        // Another way to implement this may be to keep track of the
        // state of the core object tree in method
        // addCoreObjectsToTree()
        //
        if (entry.getObject() instanceof TransGraph || entry.getObject() instanceof JobGraph) {
          EngineMetaInterface meta = entry.getObject().getMeta();
          if (meta != null) {
            meta.setInternalKettleVariables();
          }
          if (spoon.getCoreObjectsState() != SpoonInterface.STATE_CORE_OBJECTS_SPOON) {
            spoon.refreshCoreObjects();
          }
        }
      }
    }

    // Also refresh the tree
    spoon.refreshTree();
    spoon.enableMenus();
  }
 public TabMapEntry getTab(TabItem tabItem) {
   for (TabMapEntry tabMapEntry : tabMap) {
     if (tabMapEntry.getTabItem().equals(tabItem)) {
       return tabMapEntry;
     }
   }
   return null;
 }
 public TransGraph findTransGraphOfTransformation(TransMeta transMeta) {
   // Now loop over the entries in the tab-map
   for (TabMapEntry mapEntry : spoon.delegates.tabs.getTabs()) {
     if (mapEntry.getObject() instanceof TransGraph) {
       TransGraph transGraph = (TransGraph) mapEntry.getObject();
       if (transGraph.getMeta().equals(transMeta)) return transGraph;
     }
   }
   return null;
 }
 public void removeTab(TabMapEntry tabMapEntry) {
   for (TabMapEntry entry : getTabs()) {
     if (tabMapEntry.equals(entry)) {
       tabMap.remove(tabMapEntry);
     }
   }
   if (!tabMapEntry.getTabItem().isDisposed()) {
     tabMapEntry.getTabItem().dispose();
   }
 }
  public void tabSelected(TabItem item) {
    ArrayList<TabMapEntry> collection = new ArrayList<TabMapEntry>(tabMap);

    // See which core objects to show
    //
    for (TabMapEntry entry : collection) {
      boolean isTrans = (entry.getObject() instanceof TransGraph);

      if (item.equals(entry.getTabItem())) {
        if (isTrans || entry.getObject() instanceof JobGraph) {
          EngineMetaInterface meta = entry.getObject().getMeta();
          if (meta != null) {
            meta.setInternalKettleVariables();
          }
          if (spoon.getCoreObjectsState() != SpoonInterface.STATE_CORE_OBJECTS_SPOON) {
            spoon.refreshCoreObjects();
          }
        }

        if (entry.getObject() instanceof JobGraph) {
          ((JobGraph) entry.getObject()).setFocus();
        } else if (entry.getObject() instanceof TransGraph) {
          ((TransGraph) entry.getObject()).setFocus();
        }

        break;
      }
    }

    // Also refresh the tree
    spoon.refreshTree();
    spoon.setShellText(); // calls also enableMenus() and markTabsChanged()
  }
 public TabMapEntry findTabMapEntry(String tabItemText, ObjectType objectType) {
   for (TabMapEntry entry : tabMap) {
     if (entry.getTabItem().isDisposed()) {
       continue;
     }
     if (objectType == entry.getObjectType()
         && entry.getTabItem().getText().equalsIgnoreCase(tabItemText)) {
       return entry;
     }
   }
   return null;
 }
 public TabMapEntry findTabMapEntry(Object managedObject) {
   for (TabMapEntry entry : tabMap) {
     if (entry.getTabItem().isDisposed()) {
       continue;
     }
     Object entryManagedObj = entry.getObject().getManagedObject();
     // make sure they are the same class before comparing them
     if (entryManagedObj != null && managedObject != null) {
       if (entryManagedObj.getClass().equals(managedObject.getClass())) {
         if (entryManagedObj.equals(managedObject)) {
           return entry;
         }
       }
     }
   }
   return null;
 }
 /**
  * Finds the tab for the transformation that matches the metadata provided (either the file must
  * be the same or the repository id).
  *
  * @param trans Transformation metadata to look for
  * @return Tab with transformation open whose metadata matches {@code trans} or {@code null} if no
  *     tab exists.
  * @throws KettleFileException If there is a problem loading the file object for an open
  *     transformation with an invalid a filename.
  */
 public TabMapEntry findTabForTransformation(TransMeta trans) throws KettleFileException {
   // File for the transformation we're looking for. It will be loaded upon first request.
   FileObject transFile = null;
   for (TabMapEntry entry : tabMap) {
     if (entry == null || entry.getTabItem().isDisposed()) {
       continue;
     }
     if (trans.getFilename() != null && entry.getFilename() != null) {
       // If the entry has a file name it is the same as trans iff. they originated from the same
       // files
       FileObject entryFile = KettleVFS.getFileObject(entry.getFilename());
       if (transFile == null) {
         transFile = KettleVFS.getFileObject(trans.getFilename());
       }
       if (entryFile.equals(transFile)) {
         return entry;
       }
     } else if (trans.getObjectId() != null && entry.getObject() != null) {
       EngineMetaInterface meta = entry.getObject().getMeta();
       if (meta != null && trans.getObjectId().equals(meta.getObjectId())) {
         // If the transformation has an object id and the entry shares the same id they are the
         // same
         return entry;
       }
     }
   }
   // No tabs for the transformation exist and are not disposed
   return null;
 }
  public boolean tabClose(TabItem item) throws KettleException {
    // Try to find the tab-item that's being closed.
    List<TabMapEntry> collection = new ArrayList<TabMapEntry>();
    collection.addAll(tabMap);

    boolean createPerms =
        !RepositorySecurityUI.verifyOperations(
            Spoon.getInstance().getShell(),
            Spoon.getInstance().getRepository(),
            false,
            RepositoryOperation.MODIFY_TRANSFORMATION,
            RepositoryOperation.MODIFY_JOB);

    boolean close = true;
    boolean canSave = true;
    for (TabMapEntry entry : collection) {
      if (item.equals(entry.getTabItem())) {
        TabItemInterface itemInterface = entry.getObject();
        if (itemInterface.getManagedObject() != null
            && AbstractMeta.class.isAssignableFrom(itemInterface.getManagedObject().getClass())) {
          canSave = !((AbstractMeta) itemInterface.getManagedObject()).hasMissingPlugins();
        }
        if (canSave) {
          // Can we close this tab? Only allow users with create content perms to save
          if (!itemInterface.canBeClosed() && createPerms) {
            int reply = itemInterface.showChangedWarning();
            if (reply == SWT.YES) {
              close = itemInterface.applyChanges();
            } else {
              if (reply == SWT.CANCEL) {
                close = false;
              } else {
                close = true;
              }
            }
          }
        }

        // Also clean up the log/history associated with this
        // transformation/job
        //
        if (close) {
          if (entry.getObject() instanceof TransGraph) {
            TransMeta transMeta = (TransMeta) entry.getObject().getManagedObject();
            spoon.delegates.trans.closeTransformation(transMeta);
            spoon.refreshTree();
            // spoon.refreshCoreObjects();
          } else if (entry.getObject() instanceof JobGraph) {
            JobMeta jobMeta = (JobMeta) entry.getObject().getManagedObject();
            spoon.delegates.jobs.closeJob(jobMeta);
            spoon.refreshTree();
            // spoon.refreshCoreObjects();
          } else if (entry.getObject() instanceof SpoonBrowser) {
            this.removeTab(entry);
            spoon.refreshTree();
          } else if (entry.getObject() instanceof Composite) {
            Composite comp = (Composite) entry.getObject();
            if (comp != null && !comp.isDisposed()) {
              comp.dispose();
            }
          }
        }

        break;
      }
    }

    return close;
  }
  /** Rename the tabs */
  public void renameTabs() {
    List<TabMapEntry> list = new ArrayList<TabMapEntry>(tabMap);
    for (TabMapEntry entry : list) {
      if (entry.getTabItem().isDisposed()) {
        // this should not be in the map, get rid of it.
        tabMap.remove(entry.getObjectName());
        continue;
      }

      // TabItem before = entry.getTabItem();
      // PDI-1683: need to get the String here, otherwise using only the "before" instance below,
      // the reference gets
      // changed and result is always the same
      // String beforeText=before.getText();
      //
      Object managedObject = entry.getObject().getManagedObject();
      if (managedObject != null) {
        if (entry.getObject() instanceof TransGraph) {
          TransMeta transMeta = (TransMeta) managedObject;
          String tabText = makeTabName(transMeta, entry.isShowingLocation());
          entry.getTabItem().setText(tabText);
          String toolTipText = BaseMessages.getString(PKG, "Spoon.TabTrans.Tooltip", tabText);
          if (Const.isWindows() && !Const.isEmpty(transMeta.getFilename())) {
            toolTipText += Const.CR + Const.CR + transMeta.getFilename();
          }
          entry.getTabItem().setToolTipText(toolTipText);
        } else if (entry.getObject() instanceof JobGraph) {
          JobMeta jobMeta = (JobMeta) managedObject;
          entry.getTabItem().setText(makeTabName(jobMeta, entry.isShowingLocation()));
          String toolTipText =
              BaseMessages.getString(
                  PKG, "Spoon.TabJob.Tooltip", makeTabName(jobMeta, entry.isShowingLocation()));
          if (Const.isWindows() && !Const.isEmpty(jobMeta.getFilename())) {
            toolTipText += Const.CR + Const.CR + jobMeta.getFilename();
          }
          entry.getTabItem().setToolTipText(toolTipText);
        }
      }

      /*
       * String after = entry.getTabItem().getText();
       *
       * if (!beforeText.equals(after)) // PDI-1683, could be improved to rename all the time {
       * entry.setObjectName(after);
       *
       * // Also change the transformation map if (entry.getObject() instanceof TransGraph) {
       * spoon.delegates.trans.removeTransformation(beforeText); spoon.delegates.trans.addTransformation(after,
       * (TransMeta) entry.getObject().getManagedObject()); } // Also change the job map if (entry.getObject()
       * instanceof JobGraph) { spoon.delegates.jobs.removeJob(beforeText); spoon.delegates.jobs.addJob(after, (JobMeta)
       * entry.getObject().getManagedObject()); } }
       */
    }
    spoon.setShellText();
  }
  public boolean addSpoonBrowser(
      String name, String urlString, boolean isURL, LocationListener listener) {
    TabSet tabfolder = spoon.tabfolder;

    try {
      // OK, now we have the HTML, create a new browset tab.

      // See if there already is a tab for this browser
      // If no, add it
      // If yes, select that tab
      //
      TabMapEntry tabMapEntry = findTabMapEntry(name, ObjectType.BROWSER);
      if (tabMapEntry == null) {
        CTabFolder cTabFolder = tabfolder.getSwtTabset();
        final SpoonBrowser browser =
            new SpoonBrowser(cTabFolder, spoon, urlString, isURL, true, listener);

        browser
            .getBrowser()
            .addOpenWindowListener(
                new OpenWindowListener() {

                  @Override
                  public void open(WindowEvent event) {
                    if (event.required) {
                      event.browser = browser.getBrowser();
                    }
                  }
                });

        TabItem tabItem = new TabItem(tabfolder, name, name);
        tabItem.setImage(GUIResource.getInstance().getImageLogoSmall());
        tabItem.setControl(browser.getComposite());

        tabMapEntry =
            new TabMapEntry(
                tabItem, isURL ? urlString : null, name, null, null, browser, ObjectType.BROWSER);
        tabMap.add(tabMapEntry);
      }
      int idx = tabfolder.indexOf(tabMapEntry.getTabItem());

      // keep the focus on the graph
      tabfolder.setSelected(idx);
      return true;
    } catch (Throwable e) {
      boolean ok = false;
      if (isURL) {
        // Retry to show the welcome page in an external browser.
        //
        Status status = Launch.openURL(urlString);
        ok = status.equals(Status.Success);
      }
      if (!ok) {
        // Log an error
        //
        log.logError("Unable to open browser tab", e);
        return false;
      } else {
        return true;
      }
    }
  }