Examples of com.extjs.gxt.ui.client.event.TreeEvent

com.extjs.gxt.ui.client.event.TreeEvent
Tree event type.
Note: For a given event, only the fields which are appropriate will be filled in. The appropriate fields for each event are documented by the event source. @see Tree @deprecated see {@link TreePanel}

   * 
   * @param item the item to be added
   * @param index index at which the specified element is to be inserted
   */
  public void add(TreeItem item, int index) {
    TreeEvent te = new TreeEvent(tree);
    te.setParent(this);
    te.setItem(item);
    te.setIndex(index);
    if (fireEvent(Events.BeforeAdd, te)) {
      if (item.parentItem != null && item.parentItem != this) {
        item.parentItem.remove(item);
      } else if (item.parentItem != null && item.parentItem == parentItem) {
        children.remove(item);

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   */
  public void remove(TreeItem item) {
    if (!children.contains(item)) {
      return;
    }
    TreeEvent te = new TreeEvent(tree);
    te.setParent(this);
    te.setItem(item);
    if (fireEvent(Events.BeforeRemove, te)) {
      children.remove(item);
      tree.unregisterItem(item);


      item.tree = null;

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   * @param checked <code>true</code> to check
   */
  public void setChecked(boolean checked) {
    this.checked = checked;
    if (rendered) {
      if (fireEvent(Events.BeforeCheckChange, new TreeEvent(tree, this))) {
        ui.onCheckChange(checked);
        if (checked) {
          switch (tree.getCheckStyle()) {
            case PARENTS:
              TreeItem p = getParentItem();

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      this.expanded = false;
    } else if (!expanded && root) {
      this.expanded = true;
    }


    TreeEvent te = new TreeEvent(tree, this);


    if (expanded) {
      if (!this.expanded && !isLeaf()) {
        if (fireEvent(Events.BeforeExpand, te)) {
          this.expanded = true;

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  }


  public void onCheckChange(boolean checked) {
    String cls = checked ? styleTreeChecked : styleTreeNotChecked;
    checkDivEl.setClassName(cls);
    item.fireEvent(Events.CheckChange, new TreeEvent(item.tree, item));
  }

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    fly(itemEl).removeStyleName(styleTreeJointOver);
    if (GXT.isFocusManagerEnabled()) {
      Accessibility.setState(item.getElement(), "aria-expanded", "false");
      FocusFrame.get().sync(item.tree);
    }
    item.fireEvent(Events.Collapse, new TreeEvent(item.tree, item));
  }

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    fly(itemEl).removeStyleName(styleTreeJointOver);
    if (GXT.isFocusManagerEnabled()) {
      Accessibility.setState(item.getElement(), "aria-expanded", "true");
      FocusFrame.get().sync(item.tree);
    }
    item.fireEvent(Events.Expand, new TreeEvent(item.tree, item));
  }

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  }


  @Override
  public void onComponentEvent(ComponentEvent ce) {
    super.onComponentEvent(ce);
    TreeEvent te = (TreeEvent) ce;
    if (te.getItem() != null) {
      te.getItem().onComponentEvent(te);
    }


    int type = ce.getEventTypeInt();
    switch (type) {
      case Event.ONFOCUS:

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    this.treeItemPartId = treeItemPartId;
  }


  @Override
  protected ComponentEvent createComponentEvent(Event event) {
    return new TreeEvent(this, event == null ? null : findItem(DOM.eventGetTarget(event)));
  }

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  }


  @SuppressWarnings("rawtypes")
  @Override
  protected ContainerEvent createContainerEvent(TreeItem item) {
    return new TreeEvent(this, item);
  }

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Related Classes of com.extjs.gxt.ui.client.event.TreeEvent

com.extjs.gxt.ui.client.widget.tree.DefaultTreeItemUI

com.extjs.gxt.ui.client.widget.tree.Tree

com.extjs.gxt.ui.client.widget.tree.TreeItem

com.extjs.gxt.ui.client.widget.tree.TreeItemUI

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