Example usage for com.google.gwt.user.client Element getScrollTop

Introduction

In this page you can find the example usage for com.google.gwt.user.client Element getScrollTop.

Prototype

@Override
    public int getScrollTop() 

Source Link

Usage

From source file:org.thechiselgroup.biomixer.client.dnd.resources.DragEnabler.java

License:Apache License

public void createTransparentDragProxy(final int absoluteLeft, final int absoluteTop) {
    createDragWidget(absoluteLeft, absoluteTop);

    // TODO remove code duplication
    AbsolutePanel desktopWidget = desktop.asWidget();
    int left = absoluteLeft - desktopWidget.getAbsoluteLeft() - 5;
    int top = absoluteTop - desktopWidget.getAbsoluteTop() - 5;

    Element element = hiddenAvatar.getElement();

    CSS.setLocation(element, left, top);
    CSS.setSize(element, 10, 10);
    CSS.setZIndex(element, ZIndex.POPUP - 1);

    hiddenAvatar.addMouseUpHandler(new MouseUpHandler() {

        @Override//from  ww  w.  ja v a 2  s.  c  o m
        public void onMouseUp(MouseUpEvent event) {
            removeAvatar();
        }

    });

    // fake mouse down event on widget
    MouseDownEvent mouseEvent = new MouseDownEvent() {
        @Override
        public int getClientX() {
            return absoluteLeft;
        }

        @Override
        public int getClientY() {
            return absoluteTop;
        }

        @Override
        public int getNativeButton() {
            return NativeEvent.BUTTON_LEFT;
        }

        @Override
        public int getRelativeX(com.google.gwt.dom.client.Element target) {
            return getClientX() - target.getAbsoluteLeft() + target.getScrollLeft()
                    + target.getOwnerDocument().getScrollLeft();
        }

        @Override
        public int getRelativeY(com.google.gwt.dom.client.Element target) {
            return getClientY() - target.getAbsoluteTop() + target.getScrollTop()
                    + target.getOwnerDocument().getScrollTop();
        }

        @Override
        public Object getSource() {
            return hiddenAvatar;
        }

        @Override
        public boolean isControlKeyDown() {
            return false;
        }

        @Override
        public boolean isMetaKeyDown() {
            return false;
        }
    };
    mouseEvent.setRelativeElement(element);
    hiddenAvatar.fireEvent(mouseEvent);
}

---

From source file:org.thechiselgroup.biomixer.client.dnd.resources.DragEnabler.java

License:Apache License

public void forwardMouseMove(final int clientX, final int clientY) {
    if (hiddenAvatar == null) {
        return;//from  w  w w.  ja  v  a  2 s .com
    }

    MouseMoveEvent mouseEvent = new MouseMoveEvent() {
        @Override
        public int getClientX() {
            return clientX;
        }

        @Override
        public int getClientY() {
            return clientY;
        }

        @Override
        public int getRelativeX(com.google.gwt.dom.client.Element target) {
            return getClientX() - target.getAbsoluteLeft() + target.getScrollLeft()
                    + target.getOwnerDocument().getScrollLeft();
        }

        @Override
        public int getRelativeY(com.google.gwt.dom.client.Element target) {
            return getClientY() - target.getAbsoluteTop() + target.getScrollTop()
                    + target.getOwnerDocument().getScrollTop();
        }

        @Override
        public Object getSource() {
            return hiddenAvatar;
        }

    };
    mouseEvent.setRelativeElement(hiddenAvatar.getElement());
    hiddenAvatar.fireEvent(mouseEvent);
}

---

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