Java Code Examples for com.google.gwt.dom.client.Element#getFirstChildElement()

@Override
protected void initCellWithText(String text, char align, String style, boolean textIsHTML,
                                boolean sorted, String description, TableCellElement td) {
    super.initCellWithText(text, align, style, textIsHTML, sorted, description, td);

    Element tdElement = td.cast();
    Tools.textSelectionEnable(tdElement, _delegate.textSelectionEnabled);

    if ((_delegate.clickableColumns != null && _delegate.clickableColumns.contains(currentColumnKey))
            || (_delegate.clickableTableColumns != null && _delegate.clickableTableColumns.contains(currentColumnKey))) {
        tdElement.addClassName(CUBA_TABLE_CLICKABLE_CELL_CONTENT);
        Element wrapperElement = tdElement.getFirstChildElement();
        final Element clickableSpan = DOM.createSpan().cast();
        clickableSpan.setClassName(CUBA_TABLE_CLICKABLE_CELL_STYLE);

        clickableSpan.setInnerText(wrapperElement.getInnerText());

        wrapperElement.removeAllChildren();
        DOM.appendChild(wrapperElement, clickableSpan);
    }

    if (_delegate.multiLineCells) {
        Style wrapperStyle = tdElement.getFirstChildElement().getStyle();
        wrapperStyle.setWhiteSpace(Style.WhiteSpace.PRE_LINE);
    }
}
 

/**
 * Creates a wave panel.
 *
 * @param views view bundle
 * @param panelDom element in the DOM on which to build the wave panel
 * @param container panel to adopt the wave panel's widget, or {@code null}
 *        for the wave panel to be a root widget
 */
public static WavePanelImpl create(
    DomAsViewProvider views, Element panelDom, LogicalPanel container) {
  Preconditions.checkArgument(panelDom != null);
  EventDispatcherPanel events =
      (container != null) ? EventDispatcherPanel.inGwtContext(panelDom, container)
          : EventDispatcherPanel.of(panelDom);
  WavePanelImpl panel = new WavePanelImpl(views, events);

  // Existing content?
  Element frameDom = panelDom.getFirstChildElement();
  if (frameDom != null) {
    panel.init(frameDom);
  }
  return panel;
}
 

/**
 * Creates a wave panel.
 *
 * @param views view bundle
 * @param panelDom element in the DOM on which to build the wave panel
 * @param container panel to adopt the wave panel's widget, or {@code null}
 *        for the wave panel to be a root widget
 */
public static WavePanelImpl create(
    DomAsViewProvider views, Element panelDom, LogicalPanel container) {
  Preconditions.checkArgument(panelDom != null);
  EventDispatcherPanel events =
      (container != null) ? EventDispatcherPanel.inGwtContext(panelDom, container)
          : EventDispatcherPanel.of(panelDom);
  WavePanelImpl panel = new WavePanelImpl(views, events);

  // Existing content?
  Element frameDom = panelDom.getFirstChildElement();
  if (frameDom != null) {
    panel.init(frameDom);
  }
  return panel;
}
 

/**
 * Finds the index of an element in its parent's list of child elements.
 * This is not the same as {@link #findChildIndex(Node)}, since it ignores
 * non-element nodes. It is in line with the element-only view of a collection
 * of children exposed by {@link Element#getFirstChildElement()} and
 * {@link Element#getNextSiblingElement()}.
 *
 * @param child  an element
 * @return the index of {@code child}, or -1 if {@code child} is not a child
 *   of its parent.
 * @see #findChildIndex(Node)
 */
public static final int findChildElementIndex(Element child) {
  Element parent = child.getParentElement();
  Element e = parent.getFirstChildElement();
  int i = 0;
  while (e != null) {
    if (e.equals(child)) {
      return i;
    } else {
      e = e.getNextSiblingElement();
      i++;
    }
  }
  return -1;
}
 

/**
 * Makes an element, and all its descendant elements, unselectable.
 */
public static void makeUnselectable(Element e) {
  if (UserAgent.isIE()) {
    e.setAttribute("unselectable", "on");
    e = e.getFirstChildElement();
    while (e != null) {
      makeUnselectable(e);
      e = e.getNextSiblingElement();
    }
  }
}
 

public static Element getAfter(Element container, Element ref) {
  Preconditions.checkArgument(ref == null || ref.getParentElement().equals(container));
  if (ref == null) {
    return container.getFirstChildElement();
  } else {
    return ref.getNextSiblingElement();
  }
}
 

/** Turns a UiBuilder rendering into a DOM element. */
private Element parseHtml(UiBuilder ui) {
  if (ui == null) {
    return null;
  }
  SafeHtmlBuilder html = new SafeHtmlBuilder();
  ui.outputHtml(html);
  Element div = com.google.gwt.dom.client.Document.get().createDivElement();
  div.setInnerHTML(html.toSafeHtml().asString());
  Element ret = div.getFirstChildElement();
  // Detach, in order that this element looks free-floating (required by some
  // preconditions).
  ret.removeFromParent();
  return ret;
}
 

/** Injects some HTML into the DOM. */
private static Element load(SafeHtml html) {
  Element container = Document.get().createDivElement();
  container.setInnerHTML(html.asString());
  Element content = container.getFirstChildElement();
  RootPanel.get().getElement().appendChild(content);
  return content;
}
 

@Override
public void remove() {
    Element select = getElement();
    while (count-- > 0) {
        Element option = select.getFirstChildElement();
        if (option != null) {
            select.removeChild(option);
        }
    }
    count = 0;
}
 

/**
 * Finds the index of an element in its parent's list of child elements.
 * This is not the same as {@link #findChildIndex(Node)}, since it ignores
 * non-element nodes. It is in line with the element-only view of a collection
 * of children exposed by {@link Element#getFirstChildElement()} and
 * {@link Element#getNextSiblingElement()}.
 *
 * @param child  an element
 * @return the index of {@code child}, or -1 if {@code child} is not a child
 *   of its parent.
 * @see #findChildIndex(Node)
 */
public static final int findChildElementIndex(Element child) {
  Element parent = child.getParentElement();
  Element e = parent.getFirstChildElement();
  int i = 0;
  while (e != null) {
    if (e.equals(child)) {
      return i;
    } else {
      e = e.getNextSiblingElement();
      i++;
    }
  }
  return -1;
}
 

/**
 * Makes an element, and all its descendant elements, unselectable.
 */
public static void makeUnselectable(Element e) {
  if (UserAgent.isIE()) {
    e.setAttribute("unselectable", "on");
    e = e.getFirstChildElement();
    while (e != null) {
      makeUnselectable(e);
      e = e.getNextSiblingElement();
    }
  }
}
 

public static Element getAfter(Element container, Element ref) {
  Preconditions.checkArgument(ref == null || ref.getParentElement().equals(container));
  if (ref == null) {
    return container.getFirstChildElement();
  } else {
    return ref.getNextSiblingElement();
  }
}
 

/** Turns a UiBuilder rendering into a DOM element. */
private Element parseHtml(UiBuilder ui) {
  if (ui == null) {
    return null;
  }
  SafeHtmlBuilder html = new SafeHtmlBuilder();
  ui.outputHtml(html);
  Element div = com.google.gwt.dom.client.Document.get().createDivElement();
  div.setInnerHTML(html.toSafeHtml().asString());
  Element ret = div.getFirstChildElement();
  // Detach, in order that this element looks free-floating (required by some
  // preconditions).
  ret.removeFromParent();
  return ret;
}
 

/** Injects some HTML into the DOM. */
private static Element load(SafeHtml html) {
  Element container = Document.get().createDivElement();
  container.setInnerHTML(html.asString());
  Element content = container.getFirstChildElement();
  RootPanel.get().getElement().appendChild(content);
  return content;
}
 

/**
 * Update the image based on the current state.
 *
 * @param isLoading true if still loading data
 */
private void updateImage(boolean isLoading) {
  // Early out if this is a root node.
  if (isRootNode()) {
    return;
  }

  // Replace the image element with a new one.
  boolean isTopLevel = parentNode.isRootNode();
  SafeHtml html = tree.getClosedImageHtml(isTopLevel);
  if (open) {
    html = isLoading ? tree.getLoadingImageHtml() : tree.getOpenImageHtml(isTopLevel);
  }
  if (nodeInfoLoaded && nodeInfo == null) {
    html = LEAF_IMAGE;
  }
  Element tmp = Document.get().createDivElement();
  tmp.setInnerSafeHtml(html);
  Element imageElem = tmp.getFirstChildElement();

  Element oldImg = getImageElement();
  oldImg.getParentElement().replaceChild(imageElem, oldImg);

  // Set 'aria-expanded' state
  // don't set aria-expanded on the leaf nodes
  if (isLeaf()) {
    Roles.getTreeitemRole().removeAriaExpandedState(getElement());
  }
  else {
    Roles.getTreeitemRole().setAriaExpandedState(getElement(), ExpandedValue.of(open));
  }
}
 

/**
 * Returns the element that selection is applied to.
 *
 * @param nodeElem the element that represents the node
 * @return the cell parent within the node
 */
static Element getSelectionElement(Element nodeElem) {
  return nodeElem.getFirstChildElement();
}