/**
* 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);
}
}
/**
* 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);
}