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

List of usage examples for com.vaadin.client.ui.dd VDragEvent getTransferable

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Introduction

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

Prototype

public VTransferable getTransferable()

Source Link

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));
    }//w  w  w .  ja  v a  2 s .  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());
}

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

License:Apache License

private void updatePlaceHolderStyleProperties(VDragEvent drag) {
    int width = 0;
    int height = 0;
    String className = "";

    placeHolderElement.setClassName(DRAG_SHADOW_STYLE_NAME);

    ComponentConnector draggedConnector = (ComponentConnector) drag.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);
    if (draggedConnector != null) {
        height = Util.getRequiredHeight(draggedConnector.getWidget());
        width = Util.getRequiredWidth(draggedConnector.getWidget());
        className = draggedConnector.getWidget().getElement().getClassName();
        className = className.replaceAll(VLayoutDragDropMouseHandler.ACTIVE_DRAG_SOURCE_STYLENAME, "");
        placeHolderElement.addClassName(className);
    } else if (drag.getElementOver() != getElement()) {
        width = 3;//w ww  .  j  a  v  a2  s.  c  o m
        height = drag.getElementOver().getOffsetHeight();
    }

    placeHolderElement.getStyle().setWidth(width, Unit.PX);
    placeHolderElement.getStyle().setHeight(height, Unit.PX);
}

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

License:Apache License

public void updateDrag(VDragEvent drag) {

    if (placeHolderElement == null) {
        /*/* ww w  .j  a  va 2  s  .co m*/
         * Drag image might not have been detach due to lazy attaching in
         * the DragAndDropManager. Detach it again here if it has not been
         * detached.
         */
        attachDragImageToLayout(drag);
        return;
    }

    if (drag.getElementOver().isOrHasChild(placeHolderElement)) {
        return;
    }

    if (placeHolderElement.hasParentElement()) {
        /*
         * Remove the placeholder from the DOM so we can reposition
         */
        placeHolderElement.removeFromParent();
    }

    Widget w = Util.findWidget(drag.getElementOver(), null);

    ComponentConnector draggedConnector = (ComponentConnector) drag.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);

    if (draggedConnector != null && w == draggedConnector.getWidget()) {
        /*
         * Dragging drag image over the placeholder should not have any
         * effect (except placeholder should be removed)
         */
        return;
    }

    if (w != null && w != this) {

        HorizontalDropLocation hl = getHorizontalDropLocation(w, drag);
        VerticalDropLocation vl = getVerticalDropLocation(w, drag);

        if (hl == HorizontalDropLocation.LEFT || vl == VerticalDropLocation.TOP) {
            Element prev = w.getElement().getPreviousSibling().cast();
            if (draggedConnector == null || prev == null
                    || !draggedConnector.getWidget().getElement().isOrHasChild(prev)) {

                w.getElement().getParentElement().insertBefore(placeHolderElement, w.getElement());

            }
        } else if (hl == HorizontalDropLocation.RIGHT || vl == VerticalDropLocation.BOTTOM) {
            Element next = w.getElement().getNextSibling().cast();
            if (draggedConnector == null || next == null
                    || !draggedConnector.getWidget().getElement().isOrHasChild(next)) {
                w.getElement().getParentElement().insertAfter(placeHolderElement, w.getElement());
            }

        } else {
            Element prev = w.getElement().getPreviousSibling().cast();
            if (draggedConnector == null || prev == null
                    || !draggedConnector.getWidget().getElement().isOrHasChild(prev)) {
                w.getElement().getParentElement().insertBefore(placeHolderElement, w.getElement());
            }
        }

    } else {
        /*
         * First child or hoovering outside of current components
         */
        getElement().appendChild(placeHolderElement);
    }

    updatePlaceHolderStyleProperties(drag);
}

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

License:Apache License

/**
 * Emphasizes a component container when user is hovering a dragged
 * component over the container.//from ww w.  j ava  2 s  . c o m
 * 
 * @param cell
 *            The container
 * @param event
 */
protected void emphasis(CellDetails cell, VDragEvent event) {

    Style shadowStyle = dragShadow.getElement().getStyle();
    shadowStyle.setPosition(Position.ABSOLUTE);
    shadowStyle.setWidth(cell.width, Unit.PX);
    shadowStyle.setHeight(cell.height, Unit.PX);
    shadowStyle.setLeft(cell.x, Unit.PX);
    shadowStyle.setTop(cell.y, Unit.PX);

    // Remove any existing empasis
    deEmphasis();

    // Ensure we are not dragging ourself into ourself
    ComponentConnector draggedConnector = (ComponentConnector) event.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);

    if (draggedConnector != null && draggedConnector.getWidget() == VDDGridLayout.this) {
        return;
    }

    HorizontalDropLocation hl = getHorizontalDropLocation(cell, event);
    VerticalDropLocation vl = getVerticalDropLocation(cell, event);

    // Apply over style
    setStyleName(dragShadow.getElement(), OVER, true);

    // Add vertical location dependent style
    setStyleName(dragShadow.getElement(), OVER + "-" + vl.toString().toLowerCase(), true);

    // Add horizontal location dependent style
    setStyleName(dragShadow.getElement(), OVER + "-" + hl.toString().toLowerCase(), true);

}

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.horizontalsplitpanel.VDDHorizontalSplitPanelDropHandler.java

License:Apache License

@Override
public void dragOver(VDragEvent drag) {

    getLayout().deEmphasis();//  www.  j ava2  s.c o m

    getLayout().updateDragDetails(drag);

    getLayout().postOverHook(drag);

    ComponentConnector widgetConnector = (ComponentConnector) drag.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);

    if (widgetConnector != null && getLayout().equals(widgetConnector.getWidget())) {
        return;
    }

    // Validate the drop
    validate(new VAcceptCallback() {
        public void accepted(VDragEvent event) {
            getLayout().emphasis(event.getElementOver());
        }
    }, drag);
}

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.tabsheet.VDDTabSheet.java

License:Apache License

/**
 * Emphasisizes a container element/*w  ww  . j  ava2 s . co m*/
 * 
 * @param element
 */
protected void emphasis(Element element, VDragEvent event) {

    boolean internalDrag = event.getTransferable().getDragSource() == this;

    if (tabBar.getElement().isOrHasChild(element)) {
        Widget w = Util.findWidget(element, null);

        if (w == tabBar && !internalDrag) {
            // Over spacer
            Element spacerContent = spacer.getChild(0).cast();
            spacerContent.appendChild(newTab);
            currentlyEmphasised = element;

        } else if (w instanceof VCaption) {

            // Over a tab
            HorizontalDropLocation location = VDragDropUtil.getHorizontalDropLocation(DOM.asOld(element),
                    Util.getTouchOrMouseClientX(event.getCurrentGwtEvent()), tabLeftRightDropRatio);

            if (location == HorizontalDropLocation.LEFT) {

                int index = getTabPosition(w);

                if (index == 0) {

                    currentlyEmphasised = tabBar.getWidget(0).getElement().getFirstChildElement().cast();
                    currentlyEmphasised.addClassName(CLASSNAME_NEW_TAB_LEFT);
                } else {
                    Widget prevTab = tabBar.getWidget(index - 1);
                    currentlyEmphasised = prevTab.getElement();
                    currentlyEmphasised.addClassName(CLASSNAME_NEW_TAB_RIGHT);
                }

            } else if (location == HorizontalDropLocation.RIGHT) {
                int index = getTabPosition(w);
                currentlyEmphasised = tabBar.getWidget(index).getElement();
                currentlyEmphasised.addClassName(CLASSNAME_NEW_TAB_RIGHT);
            } else {
                int index = getTabPosition(w);
                currentlyEmphasised = tabBar.getWidget(index).getElement();
                currentlyEmphasised.addClassName(CLASSNAME_NEW_TAB_CENTER);
            }

        }
    }
}

From source file:fi.jasoft.dragdroplayouts.client.ui.gridlayout.VDDGridLayout.java

License:Apache License

/**
 * Emphasizes a component container when user is hovering a dragged
 * component over the container.//from   w ww  .j ava  2 s  . c  o m
 * 
 * @param cell
 *            The container
 * @param event
 */
protected void emphasis(CellDetails cell, VDragEvent event) {

    Style shadowStyle = dragShadow.getElement().getStyle();
    shadowStyle.setPosition(Position.ABSOLUTE);
    shadowStyle.setWidth(cell.width, Unit.PX);
    shadowStyle.setHeight(cell.height, Unit.PX);
    shadowStyle.setLeft(cell.x, Unit.PX);
    shadowStyle.setTop(cell.y, Unit.PX);

    // Remove any existing empasis
    deEmphasis();

    // Ensure we are not dragging ourself into ourself
    ComponentConnector draggedConnector = (ComponentConnector) event.getTransferable()
            .getData(Constants.TRANSFERABLE_DETAIL_COMPONENT);

    if (draggedConnector != null && draggedConnector.getWidget() == VDDGridLayout.this) {
        return;
    }

    HorizontalDropLocation hl = getHorizontalDropLocation(cell, event);
    VerticalDropLocation vl = getVerticalDropLocation(cell, event);

    // Apply over style
    UIObject.setStyleName(dragShadow.getElement(), OVER, true);

    // Add vertical location dependent style
    UIObject.setStyleName(dragShadow.getElement(), OVER + "-" + vl.toString().toLowerCase(), true);

    // Add horizontal location dependent style
    UIObject.setStyleName(dragShadow.getElement(), OVER + "-" + hl.toString().toLowerCase(), true);

}

From source file:org.eclipse.hawkbit.ui.dd.client.criteria.CriterionTestHelper.java

License:Open Source License

static VDragEvent createMockedVDragEvent(String dragSourceId, Widget widget, String theme) {
    VDragEvent dragEvent = createMockedVDragEvent(dragSourceId, widget);
    ApplicationConnection connection = Mockito.mock(ApplicationConnection.class);
    when(dragEvent.getTransferable().getDragSource().getConnection()).thenReturn(connection);
    UIConnector uiConnector = Mockito.mock(UIConnector.class);
    when(connection.getUIConnector()).thenReturn(uiConnector);
    when(uiConnector.getActiveTheme()).thenReturn(theme);

    return dragEvent;
}

From source file:org.eclipse.hawkbit.ui.dd.client.criteria.CriterionTestHelper.java

License:Open Source License

static VDragEvent createMockedVDragEvent(String dragSourceId, Widget widget) {
    com.google.gwt.user.client.Element element = Mockito.mock(com.google.gwt.user.client.Element.class);
    when(element.getId()).thenReturn(dragSourceId);
    when(widget.getElement()).thenReturn(element);
    ComponentConnector dragSource = Mockito.mock(ComponentConnector.class);
    when(dragSource.getWidget()).thenReturn(widget);
    VTransferable transferable = Mockito.mock(VTransferable.class);
    when(transferable.getDragSource()).thenReturn(dragSource);
    VDragEvent dragEvent = Mockito.mock(VDragEvent.class);
    when(dragEvent.getTransferable()).thenReturn(transferable);

    return dragEvent;
}

From source file:org.eclipse.hawkbit.ui.dd.client.criteria.ItemIdClientCriterion.java

License:Open Source License

@Override
// Exception squid:S1166 - Hide origin exception
// Exception squid:S2221 - This code is trans-coded to JavaScript, hence
// Exception semantics changes
@SuppressWarnings({ "squid:S1166", "squid:S2221" })
protected boolean accept(VDragEvent drag, UIDL configuration) {
    try {/*w  w w  .j  av a  2 s .  c o m*/

        String component = drag.getTransferable().getDragSource().getWidget().getElement().getId();
        int c = configuration.getIntAttribute(COMPONENT_COUNT);
        String mode = configuration.getStringAttribute(MODE);
        for (int dragSourceIndex = 0; dragSourceIndex < c; dragSourceIndex++) {
            String requiredPid = configuration.getStringAttribute(COMPONENT + dragSourceIndex);
            if ((STRICT_MODE.equals(mode) && component.equals(requiredPid))
                    || (PREFIX_MODE.equals(mode) && component.startsWith(requiredPid))) {
                return true;
            }

        }
    } catch (Exception e) {
        // log and continue
        LOGGER.log(Level.SEVERE, "Error verifying drop target: " + e.getLocalizedMessage());
    }
    return false;
}