本文整理了Java中com.github.bordertech.wcomponents.WebUtilities.getAncestorOfClass()方法的一些代码示例，展示了WebUtilities.getAncestorOfClass()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。WebUtilities.getAncestorOfClass()方法的具体详情如下：
包路径：com.github.bordertech.wcomponents.WebUtilities
类名称：WebUtilities
方法名：getAncestorOfClass

WebUtilities.getAncestorOfClass介绍

[英]Attempts to find a component which is an ancestor of the given component, and that is assignable to the given class.
[中]尝试查找作为给定组件的祖先且可分配给给定类的组件。

代码示例

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Indicates whether this is a top-level menu (ie. attached to a menu bar).
 *
 * @return {@code true} if this is a top-level menu.
 */
public boolean isTopLevelMenu() {
  MenuContainer container = WebUtilities.getAncestorOfClass(MenuContainer.class, this);
  if (container instanceof WMenuItemGroup) {
    container = WebUtilities.getAncestorOfClass(MenuContainer.class, container);
  }
  return container instanceof WMenu;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * @return {@code true} if the WMenuItem is either an immediate child of a WMenu or an immediate child of a WMenuItemGroup which is itself
 * an immediate child of a WMenu.
 */
public final boolean isTopLevelItem() {
  MenuContainer container = WebUtilities.getAncestorOfClass(MenuContainer.class, this);
  if (container instanceof WMenuItemGroup) {
    container = WebUtilities.getAncestorOfClass(MenuContainer.class, container);
  }
  return container instanceof WMenu;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-addons-table

/**
 * @return the parent table
 */
protected WTable getTable() {
  return WebUtilities.getAncestorOfClass(WTable.class, this);
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-addons-polling

/**
 * @return the logical thread pool controller
 */
protected LogicalThreadPoolController getThreadController() {
  LogicalThreadPoolController ctrl = WebUtilities.getAncestorOfClass(LogicalThreadPoolController.class, this);
  if (ctrl == null) {
    throw new IllegalStateException("No logical thread pool controller found.");
  }
  return ctrl;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Indicates whether this tab is open in the given context.
 *
 * @return true if this tab is open in the given context, otherwise false.
 */
public boolean isOpen() {
  WTabSet tabSet = WebUtilities.getAncestorOfClass(WTabSet.class, this);
  return tabSet.getActiveTabs().contains(this);
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Determine if this WMenuItem's parent WMenu is on the Request.
 *
 * @param request the request being responded to.
 * @return true if this WMenuItem's WMenu is on the Request, otherwise return false.
 */
protected boolean isMenuPresent(final Request request) {
  WMenu menu = WebUtilities.getAncestorOfClass(WMenu.class, this);
  if (menu != null) {
    return menu.isPresent(request);
  }
  return false;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * {@inheritDoc}
 */
@Override
public boolean isSelected() {
  WMenu menu = WebUtilities.getAncestorOfClass(WMenu.class, this);
  if (menu != null) {
    return menu.getSelectedMenuItems().contains(this);
  }
  return false;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * @param submenu the WSubMenu currently being rendered
 * @return {@code true} if the submenu is in a WMenu of MenuType.TREE
 */
private boolean isTree(final WSubMenu submenu) {
  WMenu menu = WebUtilities.getAncestorOfClass(WMenu.class, submenu);
  return menu != null && WMenu.MenuType.TREE == menu.getType();
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Determine if this WMenuItem's parent WMenu is on the Request.
 *
 * @param request the request being responded to.
 * @return true if this WMenuItem's WMenu is on the Request, otherwise return false.
 */
protected boolean isMenuPresent(final Request request) {
  WMenu menu = WebUtilities.getAncestorOfClass(WMenu.class, this);
  return menu != null && menu.isPresent(request);
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

@Override
  public void execute(final ActionEvent event) {
    WDialog dialog = (WDialog) WebUtilities.getAncestorOfClass(WDialog.class,
        cancelButton);
    dialog.reset();
  }
});

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

/**
 * Updates the title, based on the selected example.
 */
private void updateTitle() {
  String title;
  if (this.getCurrentComponent() == null) {
    title = "Example Picker";
  } else {
    title = this.getCurrentComponent().getClass().getName();
  }
  WApplication app = WebUtilities.getAncestorOfClass(WApplication.class, this);
  if (app != null) {
    app.setTitle(title);
  }
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Indicates whether this sub menu is disabled in the given context.
 *
 * @return true if this sub menu is disabled.
 */
@Override
public boolean isDisabled() {
  if (isFlagSet(ComponentModel.DISABLED_FLAG)) {
    return true;
  }
  MenuContainer container = WebUtilities.getAncestorOfClass(MenuContainer.class, this);
  if (container instanceof Disableable && ((Disableable) container).isDisabled()) {
    return true;
  }
  return false;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

/**
   * Since the dialog is closed on a round-trip, we need to override executeOnError to re-show the dialog.
   *
   * @param event the event which triggered validation.
   * @param diags the list of validation errors.
   */
  @Override
  public void executeOnError(final ActionEvent event, final List<Diagnostic> diags) {
    super.executeOnError(event, diags);
    WDialog dialog = (WDialog) WebUtilities.getAncestorOfClass(WDialog.class,
        selectButton);
    dialog.display();
  }
});

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * Indicates whether this group is disabled.
 *
 * @return true if this group is disabled.
 */
@Override
public boolean isDisabled() {
  if (isFlagSet(ComponentModel.DISABLED_FLAG)) {
    return true;
  }
  MenuContainer container = WebUtilities.getAncestorOfClass(MenuContainer.class, this);
  if (container instanceof Disableable && ((Disableable) container).isDisabled()) {
    return true;
  }
  return false;
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

/**
 * @inheritDoc
 */
@Override
protected void preparePaintComponent(final Request request) {
  if (!isInitialised()) {
    WebUtilities.getAncestorOfClass(WApplication.class, this).addJsFile("/com/github/bordertech/wcomponents/examples/hellobutton.js");
    setInitialised(true);
  }
  super.preparePaintComponent(request);
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

/**
   * Override preparePaintComponent in order to set some content which varies according to the modality of the
   * containing dialog.
   *
   * @param request the request being responded to.
   */
  @Override
  protected void preparePaintComponent(final Request request) {
    removeTerm(MODE_FLAG_TERM_TEXT);
    WDialog dialog = (WDialog) WebUtilities.getAncestorOfClass(WDialog.class, this);
    addTerm(MODE_FLAG_TERM_TEXT, new WText(
        ((dialog == null || dialog.getMode() == WDialog.MODELESS) ? NON_MODAL_TEXT : MODAL_TEXT)));
  }
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

/**
   * {@inheritDoc}
   */
  @Override
  public void execute(final ActionEvent event) {
    if (event.getActionObject() == null) {
      return;
    }
    WMenuItem target = (WMenuItem) event.getActionObject();
    WMenu menu = WebUtilities.getAncestorOfClass(WMenu.class, target);
    menu.clearSelectedMenuItems();
    getFilterableTableModel().filterBeanList();
  }
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

@Override
  public void execute(final ActionEvent event) {
    Person person = (Person) getBean();
    TableCellWithActionExample example = WebUtilities.getAncestorOfClass(
        TableCellWithActionExample.class, ExampleButton.this);
    example.getActionText().setText(
        "Action for: " + person.getFirstName() + ' ' + person.getLastName());
  }
});

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-core

/**
 * {@inheritDoc}
 */
@Override
public void handleRequest(final Request request) {
  // If is LAZY or DYNAMIC and is the current trigger, then process the WTabSet for the correct open/closed tabs
  if ((TabMode.LAZY.equals(getMode()) || TabMode.DYNAMIC.equals(getMode())) && AjaxHelper.isCurrentAjaxTrigger(this)) {
    WTabSet tabSet = (WTabSet) WebUtilities.getAncestorOfClass(WTabSet.class, this);
    tabSet.handleRequest(request);
  }
}

代码示例来源：origin: com.github.bordertech.wcomponents/wcomponents-examples

@Override
  public void execute(final ActionEvent event) {
    ExampleData example = tree.getSelectedExampleData();
    if (example != null) {
      TreePicker picker = WebUtilities.getAncestorOfClass(TreePicker.class, tree);
      picker.selectExample(example);
      addToRecent(example);
      if (!menu.isVisible()) {
        menu.setVisible(true);
        recentMenuHeading.setVisible(true);
      }
    }
    menu.clearSelectedMenuItems();
  }
});