Example usage for com.vaadin.client Util getElementUnderMouse

Introduction

In this page you can find the example usage for com.vaadin.client Util getElementUnderMouse.

Prototype

@Deprecated
public static com.google.gwt.user.client.Element getElementUnderMouse(NativeEvent event) 

Source Link

Document

Find the element corresponding to the coordinates in the passed mouse event.

Usage

From source file:fi.jasoft.draganddrop.client.configurations.OrderedLayoutDragAndDropConfiguration.java

License:Apache License

protected Slot getSlot(DragAndDropEvent event) {
    Element e = Util.getElementUnderMouse(event.getEvent());

    /*/* w  ww.  j av a2 s .c  om*/
     * If we are hitting between slot search around the cursor for the
     * closest slot
     */
    int nextDirection = 0;
    int width = 1;
    int pageX = Util.getTouchOrMouseClientX(event.getEvent());
    int pageY = Util.getTouchOrMouseClientY(event.getEvent());
    while (event.getTargetConnector().getWidget().getElement() == e) {
        if (nextDirection == 0) {
            pageY -= width;
            nextDirection++;
        } else if (nextDirection == 1) {
            pageX += width;
            nextDirection++;
        } else if (nextDirection == 2) {
            pageY += width;
            nextDirection++;
        } else if (nextDirection == 3) {
            pageX -= width;
            width++;
            nextDirection = 0;
        }
        e = Util.getElementFromPoint(pageX, pageY);
    }

    assert e != null : "Event target was null";
    Widget w = Util.findWidget(e, null);
    assert w != null : "Widget was not found";

    if (w != null) {
        while (!(w instanceof Slot) && w != null) {
            w = w.getParent();
        }
    }

    assert w instanceof Slot;
    return (Slot) w;
}

---

From source file:fi.jasoft.draganddrop.client.DragAndDropConnector.java

License:Apache License

private static DragAndDropConnector getTargetConnector(NativeEvent event) {
    Node node;//from  w  ww  .  jav a2 s  .  c o  m
    if (dragElement != null) {
        dragElement.getStyle().setDisplay(Display.NONE);
        node = Util.getElementUnderMouse(event);
        dragElement.getStyle().setDisplay(Display.BLOCK);
        if (node == null) {
            return null;
        }
    } else if (event.getEventTarget() != null) {
        node = Node.as(event.getEventTarget());
    } else {
        return null;
    }
    return getTargetConnector(node);
}

---