Example usage for com.vaadin.client Util findWidget

List of usage examples for com.vaadin.client Util findWidget

  1. HOME
  2. Java
  3. com.vaadin
  4. com.vaadin.client.*
  5. Util
  6. findWidget

Introduction

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

Prototype

@Deprecated
public static <T> T findWidget(Element element, Class<? extends Widget> class1)

Source Link

Document

Helper method to find first instance of given Widget type found by traversing DOM upwards from given element.

Usage

From source file:annis.gui.widgets.gwt.client.ui.VGripDragComponent.java

License:Apache License

private boolean startDrag(NativeEvent event) {
    VTransferable transferable = new VTransferable();
    transferable.setDragSource(ConnectorMap.get(client).getConnector(this));

    Element targetElement = (Element) event.getEventTarget().cast();

    Paintable paintable;//from w ww . j  a  v  a2  s  . co  m
    Widget w = Util.findWidget(targetElement, null);

    if (!w.getStyleName().contains("drag-source-enabled")) {
        return false;
    }

    while (w != null && !(w instanceof Paintable)) {
        w = w.getParent();
    }
    paintable = (Paintable) w;

    transferable.setData("component", paintable);
    VDragEvent dragEvent = VDragAndDropManager.get().startDrag(transferable, event, true);

    transferable.setData("clientX", event.getClientX());
    transferable.setData("clientY", event.getClientY());

    dragEvent.createDragImage(getElement(), true);

    return true;

}

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  .  ja  v a  2s . co m
 * @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

public void updateDrag(VDragEvent drag) {

    if (placeHolderElement == null) {
        /*//  ww w  .  j a  va  2 s . c o  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.horizontalsplitpanel.VDDHorizontalSplitPanel.java

License:Apache License

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

    // Resolve where the drop was made
    HorizontalDropLocation location = null;
    Widget content = null;
    if (firstContainer.isOrHasChild(over)) {
        location = HorizontalDropLocation.LEFT;
        content = Util.findWidget(firstContainer, null);
    } else if (splitter.isOrHasChild(over)) {
        location = HorizontalDropLocation.CENTER;
        content = this;
    } else if (secondContainer.isOrHasChild(over)) {
        location = HorizontalDropLocation.RIGHT;
        content = Util.findWidget(secondContainer, null);
    }

    event.getDropDetails().put(Constants.DROP_DETAIL_HORIZONTAL_DROP_LOCATION, location);

    if (content != null) {
        event.getDropDetails().put(Constants.DROP_DETAIL_OVER_CLASS, content.getClass().getName());
    } else {
        event.getDropDetails().put(Constants.DROP_DETAIL_OVER_CLASS, this.getClass().getName());
    }

    // 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.tabsheet.VDDTabSheet.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  av a  2s .co  m
 * @param event
 *            The drag event
 */
protected void updateDragDetails(VDragEvent event) {
    Element element = event.getElementOver();
    if (element == null)
        return;

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

        if (w == tabBar) {
            // Ove3r the spacer

            // Add index
            event.getDropDetails().put(Constants.DROP_DETAIL_TO, tabBar.getWidgetCount() - 1);

            // Add drop location
            event.getDropDetails().put(Constants.DROP_DETAIL_HORIZONTAL_DROP_LOCATION,
                    HorizontalDropLocation.RIGHT);

        } else {

            // Add index
            event.getDropDetails().put(Constants.DROP_DETAIL_TO, getTabPosition(w));

            // Add drop location
            HorizontalDropLocation location = VDragDropUtil.getHorizontalDropLocation(DOM.asOld(element),
                    Util.getTouchOrMouseClientX(event.getCurrentGwtEvent()), tabLeftRightDropRatio);
            event.getDropDetails().put(Constants.DROP_DETAIL_HORIZONTAL_DROP_LOCATION, location);
        }

        // 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.tabsheet.VDDTabSheet.java

License:Apache License

/**
 * Emphasisizes a container element/*from   w w  w  . j a  v  a 2s  . c  o  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:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.tabsheet.VDDTabSheet.java

License:Apache License

/**
 * Removes any previous emphasis made by drag&amp;drop
 */// ww w . java 2s.  c  om
protected void deEmphasis() {
    if (currentlyEmphasised != null && tabBar.getElement().isOrHasChild(currentlyEmphasised)) {
        Widget w = Util.findWidget(currentlyEmphasised, null);

        currentlyEmphasised.removeClassName(CLASSNAME_NEW_TAB_LEFT);
        currentlyEmphasised.removeClassName(CLASSNAME_NEW_TAB_RIGHT);
        currentlyEmphasised.removeClassName(CLASSNAME_NEW_TAB_CENTER);

        if (w == tabBar) {
            // Over spacer
            Element spacerContent = spacer.getChild(0).cast();
            spacerContent.removeChild(newTab);
        }

        currentlyEmphasised = null;
    }
}

From source file:com.haulmont.cuba.web.widgets.client.addons.dragdroplayouts.ui.verticalsplitpanel.VDDVerticalSplitPanel.java

License:Apache License

/**
 * Updates the drop details while dragging. This is needed to ensure client
 * side criterias can validate the drop location.
 * /*from  w w w  .jav  a2s .  co  m*/
 * @param event
 *            The drag event
 */
protected void updateDragDetails(VDragEvent event) {
    Element over = event.getElementOver();

    // Resolve where the drop was made
    VerticalDropLocation location = null;
    Widget content = null;
    if (firstContainer.isOrHasChild(over)) {
        location = VerticalDropLocation.TOP;
        content = Util.findWidget(firstContainer, null);
    } else if (splitter.isOrHasChild(over)) {
        location = VerticalDropLocation.MIDDLE;
        content = this;
    } else if (secondContainer.isOrHasChild(over)) {
        location = VerticalDropLocation.BOTTOM;
        content = Util.findWidget(secondContainer, null);
    }

    event.getDropDetails().put(Constants.DROP_DETAIL_VERTICAL_DROP_LOCATION, location);

    if (content != null) {
        event.getDropDetails().put(Constants.DROP_DETAIL_OVER_CLASS, content.getClass().getName());
    } else {
        event.getDropDetails().put(Constants.DROP_DETAIL_OVER_CLASS, this.getClass().getName());
    }

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

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

License:Apache License

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

    /*/*from  w w w .  j  a  v a 2  s. co m*/
     * 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

protected void onMouseDown(NativeEvent event) {
    if (isDraggingDisabled()) {
        return;//from w w w  .  j ava2  s . c om
    }

    Element element = Element.as(event.getEventTarget());
    Widget widget = Util.findWidget(element, null);
    ComponentConnector connector = Util.findConnectorFor(widget);
    if (connector == null) {
        return;
    }

    dragStartEvent = event;
    createDragImage(connector.getWidget().getElement(), true);
    attachDragElement(connector);
    updateDragImagePosition(event);

    currentDraggedComponent = connector;
    getLogger().warning("Started drag");

    Event.setCapture(RootPanel.getBodyElement());

    event.preventDefault();
    event.stopPropagation();
}