Example usage for com.vaadin.client.ui.dd VDragEvent getCurrentGwtEvent

Introduction

In this page you can find the example usage for com.vaadin.client.ui.dd VDragEvent getCurrentGwtEvent.

Prototype

public NativeEvent getCurrentGwtEvent() 

Source Link

Document

Returns the the latest NativeEvent that relates to this drag and drop operation.

Usage

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.absolutelayout.VDDAbsoluteLayout.java

License:Apache License

protected void updateDragDetails(VDragEvent drag) {

    // Get absolute coordinates
    int absoluteLeft = drag.getCurrentGwtEvent().getClientX();
    int absoluteTop = drag.getCurrentGwtEvent().getClientY();

    drag.getDropDetails().put(Constants.DROP_DETAIL_ABSOLUTE_LEFT, absoluteLeft);
    drag.getDropDetails().put(Constants.DROP_DETAIL_ABSOLUTE_TOP, absoluteTop);

    // Get relative coordinates
    int offsetLeft = 0;
    if (drag.getDragImage() != null) {
        String offsetLeftStr = drag.getDragImage().getStyle().getMarginLeft();
        offsetLeft = Integer.parseInt(offsetLeftStr.substring(0, offsetLeftStr.length() - 2));
    }//from  w  ww .  j  av a 2s . c o  m

    int relativeLeft = Util.getTouchOrMouseClientX(drag.getCurrentGwtEvent()) - canvas.getAbsoluteLeft()
            + offsetLeft;

    int offsetTop = 0;
    if (drag.getDragImage() != null) {
        String offsetTopStr = drag.getDragImage().getStyle().getMarginTop();
        offsetTop = Integer.parseInt(offsetTopStr.substring(0, offsetTopStr.length() - 2));
    }

    int relativeTop = Util.getTouchOrMouseClientY(drag.getCurrentGwtEvent()) - canvas.getAbsoluteTop()
            + offsetTop;

    drag.getDropDetails().put(Constants.DROP_DETAIL_RELATIVE_LEFT, relativeLeft);
    drag.getDropDetails().put(Constants.DROP_DETAIL_RELATIVE_TOP, relativeTop);

    // Get component size
    ComponentConnector widgetConnector = (ComponentConnector) drag.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);
    if (widgetConnector != null) {
        drag.getDropDetails().put(Constants.DROP_DETAIL_COMPONENT_WIDTH,
                widgetConnector.getWidget().getOffsetWidth());
        drag.getDropDetails().put(Constants.DROP_DETAIL_COMPONENT_HEIGHT,
                widgetConnector.getWidget().getOffsetHeight());
    } else {
        drag.getDropDetails().put(Constants.DROP_DETAIL_COMPONENT_WIDTH, -1);
        drag.getDropDetails().put(Constants.DROP_DETAIL_COMPONENT_HEIGHT, -1);
    }

    // Add mouse event details
    MouseEventDetails details = MouseEventDetailsBuilder.buildMouseEventDetails(drag.getCurrentGwtEvent(),
            getElement());
    drag.getDropDetails().put(Constants.DROP_DETAIL_MOUSE_EVENT, details.serialize());
}

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From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.absolutelayout.VDDAbsoluteLayoutDropHandler.java

License:Apache License

@Override
public void dragLeave(VDragEvent drag) {
    super.dragLeave(drag);

    // Due to http://dev.vaadin.com/ticket/14880 we need to abort if gwt
    // event is null
    if (drag.getCurrentGwtEvent() != null) {
        getLayout().updateDragDetails(drag);
        getLayout().postLeaveHook(drag);
    }//from   w w w.j  ava2s .  co  m
}

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From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.accordion.VDDAccordion.java

License:Apache License

/**
 * Updates the drop details while dragging. This is needed to ensure client
 * side criterias can validate the drop location.
 * /*from ww w  . ja  v  a 2  s. c om*/
 * @param event
 *            The drag event
 */
protected void updateDragDetails(VDragEvent event) {
    if (event.getElementOver() == null) {
        return;
    }

    StackItem tab = WidgetUtil.findWidget(event.getElementOver(), StackItem.class);

    if (tab != null && getElement().isOrHasChild(tab.getElement())) {
        Map<String, Object> dropDetails = event.getDropDetails();

        int index = getTabPosition(tab);
        dropDetails.put(Constants.DROP_DETAIL_TO, index);

        VerticalDropLocation location = getDropLocation(tab, event);
        dropDetails.put(Constants.DROP_DETAIL_VERTICAL_DROP_LOCATION, location);

        MouseEventDetails details = MouseEventDetailsBuilder.buildMouseEventDetails(event.getCurrentGwtEvent(),
                getElement());
        dropDetails.put(Constants.DROP_DETAIL_MOUSE_EVENT, details.serialize());
    }
}

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From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.accordion.VDDAccordion.java

License:Apache License

/**
 * Returns the drop location of a tab//from   w w  w . j ava  2  s. c  o  m
 * 
 * @param tab
 *            The tab that was dragged
 * @param event
 *            The drag event
 * @return
 */
protected VerticalDropLocation getDropLocation(StackItem tab, VDragEvent event) {
    VerticalDropLocation location;
    if (tab.isOpen()) {
        location = VDragDropUtil.getVerticalDropLocation(tab.getElement(),
                Util.getTouchOrMouseClientY(event.getCurrentGwtEvent()), tabTopBottomDropRatio);
    } else {
        location = VDragDropUtil.getVerticalDropLocation(tab.getWidget(0).getElement(),
                Util.getTouchOrMouseClientY(event.getCurrentGwtEvent()), tabTopBottomDropRatio);
    }
    return location;
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.csslayout.VDDCssLayout.java

License:Apache License

/**
 * Updates the drop details while dragging. This is needed to ensure client
 * side criterias can validate the drop location.
 * //  www  .  j a v  a2s  . c  om
 * @param event
 *            The drag event
 */
protected void updateDragDetails(VDragEvent event) {

    Element over = event.getElementOver();
    if (placeHolderElement.isOrHasChild(over)) {
        // Dragging over the placeholder
        return;
    }

    Widget widget = (Widget) Util.findWidget(over, null);
    if (widget == null) {
        // Null check
        return;
    }

    int offset = 0;
    int index = -1;
    for (int i = 0; i < getElement().getChildCount(); i++) {
        Element child = getElement().getChild(i).cast();
        if (child.isOrHasChild(placeHolderElement)) {
            offset--;
        } else if (child.isOrHasChild(widget.getElement())) {
            index = i + offset;
            break;
        }
    }
    event.getDropDetails().put(Constants.DROP_DETAIL_TO, index);

    /*
     * The horizontal position within the cell
     */
    event.getDropDetails().put(Constants.DROP_DETAIL_HORIZONTAL_DROP_LOCATION,
            getHorizontalDropLocation(widget, event));

    /*
     * The vertical position within the cell
     */
    event.getDropDetails().put(Constants.DROP_DETAIL_VERTICAL_DROP_LOCATION,
            getVerticalDropLocation(widget, event));

    // Add mouse event details
    MouseEventDetails details = MouseEventDetailsBuilder.buildMouseEventDetails(event.getCurrentGwtEvent(),
            getElement());
    event.getDropDetails().put(Constants.DROP_DETAIL_MOUSE_EVENT, details.serialize());
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.csslayout.VDDCssLayout.java

License:Apache License

/**
 * Returns the horizontal location within the cell when hoovering over the
 * cell. By default the cell is devided into three parts: left,center,right
 * with the ratios 10%,80%,10%;//from   ww  w  . j  a  v a 2s.c  o  m
 * 
 * @param container
 *            The widget container
 * @param event
 *            The drag event
 * @return The horizontal drop location
 */
protected HorizontalDropLocation getHorizontalDropLocation(Widget container, VDragEvent event) {
    return VDragDropUtil.getHorizontalDropLocation(container.getElement(),
            Util.getTouchOrMouseClientX(event.getCurrentGwtEvent()), horizontalDropRatio);
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.csslayout.VDDCssLayout.java

License:Apache License

/**
 * Returns the horizontal location within the cell when hoovering over the
 * cell. By default the cell is devided into three parts: left,center,right
 * with the ratios 10%,80%,10%;//from   www  .  j a v  a  2  s. c  om
 * 
 * @param container
 *            The widget container
 * @param event
 *            The drag event
 * @return The horizontal drop location
 */
protected VerticalDropLocation getVerticalDropLocation(Widget container, VDragEvent event) {
    return VDragDropUtil.getVerticalDropLocation(container.getElement(),
            Util.getTouchOrMouseClientY(event.getCurrentGwtEvent()), verticalDropRatio);
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.formlayout.VDDFormLayout.java

License:Apache License

/**
 * Returns the horizontal location within the cell when hoovering over the
 * cell. By default the cell is devided into three parts: left,center,right
 * with the ratios 10%,80%,10%;//from  w  ww  .j a v  a 2s  . com
 * 
 * @param rowElement
 *            The row
 * @param event
 *            The drag event
 * @return The horizontal drop location
 */
protected VerticalDropLocation getVerticalDropLocation(Element rowElement, VDragEvent event) {
    return VDragDropUtil.getVerticalDropLocation((com.google.gwt.user.client.Element) rowElement,
            Util.getTouchOrMouseClientY(event.getCurrentGwtEvent()), cellTopBottomDropRatio);
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.formlayout.VDDFormLayout.java

License:Apache License

/**
 * Updates the drop details while dragging. This is needed to ensure client
 * side criterias can validate the drop location.
 * //  ww w.  j a va2s  .  c  o m
 * @param widget
 *            The container which we are hovering over
 * @param event
 *            The drag event
 */
protected void updateDragDetails(Widget widget, VDragEvent event) {
    /*
     * The horizontal position within the cell
     */
    event.getDropDetails().put(Constants.DROP_DETAIL_VERTICAL_DROP_LOCATION, getVerticalDropLocation(
            VDDFormLayout.getRowFromChildElement(widget.getElement(), VDDFormLayout.this.getElement()), event));

    /*
     * The index over which the drag is. Can be used by a client side
     * criteria to verify that a drag is over a certain index.
     */
    event.getDropDetails().put(Constants.DROP_DETAIL_TO, "-1");
    for (int i = 0; i < table.getRowCount(); i++) {
        Widget w = table.getWidget(i, COLUMN_WIDGET);
        if (widget.equals(w)) {
            event.getDropDetails().put(Constants.DROP_DETAIL_TO, i);
        }
    }

    /*
     * Add Classname of component over the drag. This can be used by a a
     * client side criteria to verify that a drag is over a specific class
     * of component.
     */
    String className = widget.getClass().getName();
    event.getDropDetails().put(Constants.DROP_DETAIL_OVER_CLASS, className);

    // Add mouse event details
    MouseEventDetails details = MouseEventDetailsBuilder.buildMouseEventDetails(event.getCurrentGwtEvent(),
            getElement());
    event.getDropDetails().put(Constants.DROP_DETAIL_MOUSE_EVENT, details.serialize());
}

---

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.gridlayout.VDDGridLayout.java

License:Apache License

/**
 * Updates the drop details while dragging
 * /*  w  w  w .ja v  a 2 s . c  om*/
 * @param event
 *            The drag event
 */
public void updateDragDetails(VDragEvent event) {
    CellDetails cd = getCellDetails(event);
    if (cd != null) {
        Map<String, Object> ddetails = event.getDropDetails();

        // Add row
        ddetails.put(Constants.DROP_DETAIL_ROW, Integer.valueOf(cd.row));

        // Add column
        ddetails.put(Constants.DROP_DETAIL_COLUMN, Integer.valueOf(cd.column));

        // Add horizontal position
        HorizontalDropLocation hl = getHorizontalDropLocation(cd, event);
        ddetails.put(Constants.DROP_DETAIL_HORIZONTAL_DROP_LOCATION, hl);

        // Add vertical position
        VerticalDropLocation vl = getVerticalDropLocation(cd, event);
        ddetails.put(Constants.DROP_DETAIL_VERTICAL_DROP_LOCATION, vl);

        // Check if the cell we are hovering over has content
        Cell cell = getCell(cd.row, cd.column);
        ddetails.put(Constants.DROP_DETAIL_EMPTY_CELL, cell != null);

        // Get class information from child
        if (cell != null && cell.slot != null) {
            ComponentConnector child = cell.slot.getChild();
            if (child != null) {
                String className = child.getWidget().getClass().getName();
                ddetails.put(Constants.DROP_DETAIL_OVER_CLASS, className);
            } else {
                ddetails.put(Constants.DROP_DETAIL_OVER_CLASS, VDDGridLayout.this.getClass().getName());
            }
        } else {
            ddetails.put(Constants.DROP_DETAIL_OVER_CLASS, VDDGridLayout.this.getClass().getName());
        }

        // Add mouse event details
        MouseEventDetails details = MouseEventDetailsBuilder.buildMouseEventDetails(event.getCurrentGwtEvent(),
                getElement());
        event.getDropDetails().put(Constants.DROP_DETAIL_MOUSE_EVENT, details.serialize());
    }
}

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