Examples of com.extjs.gxt.ui.client.widget.TabItem$HeaderItem

com.extjs.gxt.ui.client.widget.TabItem
TabItems are added to a {@link TabPanel}. TabItems can be closable, disabled and support icons. Code snippet:
```
 TabItem ti = new TabItem("Tab One"); ti.setClosable(true); ti.setEnabled(false); tabPanel.add(ti); 
```
Events:
BeforeClose : TabPanelEvent(tabPanel, item)

Fires before an item is closed by the user clicking the close icon. Listeners can cancel the action by calling {@link BaseEvent#setCancelled(boolean)}.
- tabPanel : this
- item : the item that was closed.
Close : TabPanelEvent(tabPanel, item)

Fires after an item is closed by the user clicking the close icon.
- tabPanel : this
- item : the item that was closed.
Select : TabPanelEvent(tabPanel, item)

Fires after the item is selected.
- tabPanel : this
- item : the item that was selected.

    TabItem item = getTabIfOpen(input);
    if(item != null)
      tabFolder.remove(item);
  }
  public final void showIfOpen(Object input) {
    TabItem item = getTabIfOpen(input);
    if(item != null)
      tabFolder.setSelection(item);
  }

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    TabItem item = getTabIfOpen(input);
    if(item != null)
      tabFolder.setSelection(item);
  }
  private final boolean isAlreadyOpen(XObject input) {
    TabItem item = tabFolder.findItem(input.getId(), false);
    return item != null;
  }

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    }
    return null;
  }
  
  public final void renameIfOpen(Object input) {
    TabItem item = getTabIfOpen(input);
    if(item != null) {
      TreeNode node = (TreeNode) input;
      item.setText(node.getXObject().getName());
    }


  }

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    }
  }
  private final void removeNextTab() {
    int nextItem = tabFolder.getItemCount() - 1;
    if(nextItem >= 0) {
      TabItem nextTab = tabFolder.getItem(nextItem);
      tabFolder.remove(nextTab);
    } else {
      tabFolder.removeFromParent();
      removeAll = false;
    }

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      tabPanel.setBorders(false);
      
      final HashMap<TabItem, TCLink> tabLookup = new HashMap<TabItem, TCLink>();
      
      for(int i = 0; i < matches.size(); i++){
        TabItem item = new TabItem("match " + (i+1));
        item.setScrollMode(Scroll.AUTO);
        item.setLayout(new FitLayout());
        NoteItem mItem = new NoteItem(matches.get(i).getText(), matches.get(i).getLink().getCurrentDerivedId(), matches.get(i).getNotes());
        item.add(mItem);
        if(matches.get(i).getLink().getType().equals(TCLink.TYPE_CONFIRMED))
          item.addStyleName("tc-match-confirmedMatch");
        else
          item.addStyleName("tc-match-unconfirmedMatch");
        tabPanel.add(item);
        tabLookup.put(item, matches.get(i).getLink());
      }
      
      // tab selection listener to unhighlight paragraph in TCSection

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  @Override
  public void onEnter(Component component, PreviewEvent pe) {
    if (!isManaged()) return;
    if (component instanceof HeaderItem) {
      pe.preventDefault();
      TabItem item = (TabItem) component.getParent();
      stepInto(item, pe, true);
    } else if (component instanceof TabPanel) {
      pe.preventDefault();
      TabPanel panel = (TabPanel) component;
      TabItem item = panel.getSelectedItem();
      if (item != null && item.getItemCount() > 0) {
        item.getItem(0).focus();
      }
    }
  }

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  @Override
  public void onEnter(Component component, PreviewEvent pe) {
    if (!isManaged()) return;
    if (component instanceof HeaderItem) {
      pe.preventDefault();
      TabItem item = (TabItem) component.getParent();
      stepInto(item, pe, true);
    } else if (component instanceof TabPanel) {
      pe.preventDefault();
      TabPanel panel = (TabPanel) component;
      TabItem item = panel.getSelectedItem();
      if (item != null && item.getItemCount() > 0) {
        item.getItem(0).focus();
      }
    }
  }

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  @Override
  public void onEnter(Component component, PreviewEvent pe) {
    if (!isManaged()) return;
    if (component instanceof HeaderItem) {
      pe.preventDefault();
      TabItem item = (TabItem) component.getParent();
      stepInto(item, pe, true);
    } else if (component instanceof TabPanel) {
      pe.preventDefault();
      TabPanel panel = (TabPanel) component;
      TabItem item = panel.getSelectedItem();
      if (item != null && item.getItemCount() > 0) {
        item.getItem(0).focus();
      }
    }
  }

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  @Override
  public void onEnter(Component component, PreviewEvent pe) {
    if (!isManaged()) return;
    if (component instanceof HeaderItem) {
      pe.preventDefault();
      TabItem item = (TabItem) component.getParent();
      stepInto(item, pe, true);
    } else if (component instanceof TabPanel) {
      pe.preventDefault();
      TabPanel panel = (TabPanel) component;
      TabItem item = panel.getSelectedItem();
      if (item != null && item.getItemCount() > 0) {
        item.getItem(0).focus();
      }
    }
  }

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  @Override
  public void onEnter(Component component, PreviewEvent pe) {
    if (!isManaged()) return;
    if (component instanceof HeaderItem) {
      pe.preventDefault();
      TabItem item = (TabItem) component.getParent();
      stepInto(item, pe, true);
    } else if (component instanceof TabPanel) {
      pe.preventDefault();
      TabPanel panel = (TabPanel) component;
      TabItem item = panel.getSelectedItem();
      if (item != null && item.getItemCount() > 0) {
        item.getItem(0).focus();
      }
    }
  }

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