Exemplo n.º 1
0
  /**
   * Automatically tries to create a proxy image from given element.
   *
   * @param element
   * @param alignImageToEvent if true, proxy image is aligned to start event, else next to mouse
   *     cursor
   * @deprecated As of 7.2, call or override {@link #createDragImage(Element,boolean)} instead
   */
  @Deprecated
  public void createDragImage(
      com.google.gwt.user.client.Element element, boolean alignImageToEvent) {
    Element cloneNode = (Element) element.cloneNode(true);

    // Set size explicitly for cloned node to avoid stretching #14617.
    cloneNode.getStyle().setWidth(element.getOffsetWidth(), Unit.PX);
    cloneNode.getStyle().setHeight(element.getOffsetHeight(), Unit.PX);

    syncContent(element, cloneNode);
    if (BrowserInfo.get().isIE()) {
      if (cloneNode.getTagName().toLowerCase().equals("tr")) {
        TableElement table = Document.get().createTableElement();
        TableSectionElement tbody = Document.get().createTBodyElement();
        table.appendChild(tbody);
        tbody.appendChild(cloneNode);
        cloneNode = table.cast();
      }
    }
    if (alignImageToEvent) {
      int absoluteTop = element.getAbsoluteTop();
      int absoluteLeft = element.getAbsoluteLeft();
      int clientX = WidgetUtil.getTouchOrMouseClientX(startEvent);
      int clientY = WidgetUtil.getTouchOrMouseClientY(startEvent);
      int offsetX = absoluteLeft - clientX;
      int offsetY = absoluteTop - clientY;
      setDragImage(cloneNode, offsetX, offsetY);
    } else {
      setDragImage(cloneNode);
    }
  }
Exemplo n.º 2
0
 /**
  * Do additional content sync between <code>original</code> element and its <code>copy</code> if
  * needed.
  *
  * @since 7.2
  * @param original original element
  * @param copy copy of original element
  */
 private void syncContent(Element original, Element copy) {
   for (int i = 0; i < original.getChildCount(); i++) {
     Node child = original.getChild(i);
     if (child instanceof Element) {
       syncContent((Element) child, (Element) copy.getChild(i));
     }
   }
   doSyncContent(original, copy);
 }