Example usage for com.vaadin.shared.ui.dd VerticalDropLocation MIDDLE

Introduction

In this page you can find the example usage for com.vaadin.shared.ui.dd VerticalDropLocation MIDDLE.

Prototype

VerticalDropLocation MIDDLE

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Usage

From source file:com.foc.vaadin.gui.layouts.FVVertical_WYSIWYG_DropHandler.java

License:Apache License

@Override
protected void handleComponentReordering(DragAndDropEvent event) {
    // Component re-ordering
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    VerticalLayoutTargetDetails details = (VerticalLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    Component comp = transferable.getComponent();
    int idx = (details).getOverIndex();

    // Detach/*from w  w  w  .j a  v  a  2s .c om*/
    if (comp != null && layout != null)
        layout.removeComponent(comp);
    idx--;

    // Increase index if component is dropped after or above a previous
    // component
    VerticalDropLocation loc = details.getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (layout != null) {
        if (idx >= 0) {
            layout.addComponent(comp, idx);
        } else {
            layout.addComponent(comp);
        }
    }

    if (comp instanceof FVLayout) {
        ((FVLayout) comp).setDragDrop(true);
    }

    // Add component alignment if given
    if (dropAlignment != null && layout != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }
}

---

From source file:com.foc.vaadin.gui.layouts.FVVertical_WYSIWYG_DropHandler.java

License:Apache License

@Override
protected void handleDropFromLayout(DragAndDropEvent event) {
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    VerticalLayoutTargetDetails details = (VerticalLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    Component source = event.getTransferable().getSourceComponent();
    int idx = (details).getOverIndex();
    Component comp = transferable.getComponent();

    // Check that we are not dragging an outer layout into an inner
    // layout//from   w  w w.  ja v a 2 s  . c o m
    Component parent = layout.getParent();
    while (parent != null) {
        if (parent == comp) {
            return;
        }
        parent = parent.getParent();
    }

    // If source is an instance of a component container then remove
    // it
    // from there,
    // the component cannot have two parents.

    ComponentContainer sourceLayout = null;

    if (source instanceof ComponentContainer) {
        sourceLayout = (ComponentContainer) source;
        sourceLayout.removeComponent(comp);
    }

    // Increase index if component is dropped after or above a
    // previous
    // component
    VerticalDropLocation loc = (details).getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }
}

---

From source file:com.haulmont.cuba.web.gui.components.WebFilterHelper.java

License:Apache License

@Override
public void initConditionsDragAndDrop(final Tree tree, final ConditionsTree conditions) {
    final com.vaadin.ui.Tree vTree = tree.unwrap(com.vaadin.ui.Tree.class);
    vTree.setDragMode(com.vaadin.ui.Tree.TreeDragMode.NODE);
    vTree.setDropHandler(new DropHandler() {
        @Override/* w  w w. jav  a 2s. c o m*/
        public void drop(DragAndDropEvent event) {
            Transferable t = event.getTransferable();

            if (t.getSourceComponent() != vTree)
                return;

            com.vaadin.ui.Tree.TreeTargetDetails target = (com.vaadin.ui.Tree.TreeTargetDetails) event
                    .getTargetDetails();

            VerticalDropLocation location = target.getDropLocation();
            Object sourceItemId = t.getData("itemId");
            Object targetItemId = target.getItemIdOver();

            if (targetItemId == null)
                return;

            CollectionDatasource datasource = tree.getDatasource();

            AbstractCondition sourceCondition = (AbstractCondition) datasource.getItem(sourceItemId);
            AbstractCondition targetCondition = (AbstractCondition) datasource.getItem(targetItemId);

            Node<AbstractCondition> sourceNode = conditions.getNode(sourceCondition);
            Node<AbstractCondition> targetNode = conditions.getNode(targetCondition);

            if (isAncestorOf(targetNode, sourceNode))
                return;

            boolean moveToTheSameParent = Objects.equals(sourceNode.getParent(), targetNode.getParent());

            if (location == VerticalDropLocation.MIDDLE) {
                if (sourceNode.getParent() == null) {
                    conditions.getRootNodes().remove(sourceNode);
                } else {
                    sourceNode.getParent().getChildren().remove(sourceNode);
                }
                targetNode.addChild(sourceNode);
                refreshConditionsDs();
                tree.expand(targetCondition.getId());
            } else {
                List<Node<AbstractCondition>> siblings;
                if (targetNode.getParent() == null)
                    siblings = conditions.getRootNodes();
                else
                    siblings = targetNode.getParent().getChildren();

                int targetIndex = siblings.indexOf(targetNode);
                if (location == VerticalDropLocation.BOTTOM)
                    targetIndex++;

                int sourceNodeIndex;
                if (sourceNode.getParent() == null) {
                    sourceNodeIndex = conditions.getRootNodes().indexOf(sourceNode);
                    conditions.getRootNodes().remove(sourceNode);
                } else {
                    sourceNodeIndex = sourceNode.getParent().getChildren().indexOf(sourceNode);
                    sourceNode.getParent().getChildren().remove(sourceNode);
                }

                //decrease drop position index if dragging from top to bottom inside the same parent node
                if (moveToTheSameParent && (sourceNodeIndex < targetIndex))
                    targetIndex--;

                if (targetNode.getParent() == null) {
                    sourceNode.parent = null;
                    conditions.getRootNodes().add(targetIndex, sourceNode);
                } else {
                    targetNode.getParent().insertChildAt(targetIndex, sourceNode);
                }

                refreshConditionsDs();
            }
        }

        protected boolean isAncestorOf(Node childNode, Node possibleParentNode) {
            while (childNode.getParent() != null) {
                if (childNode.getParent().equals(possibleParentNode))
                    return true;
                childNode = childNode.getParent();
            }
            return false;
        }

        protected void refreshConditionsDs() {
            tree.getDatasource().refresh(Collections.singletonMap("conditions", conditions));
        }

        @Override
        public AcceptCriterion getAcceptCriterion() {
            return new Or(new AbstractSelect.TargetItemIs(vTree, getGroupConditionIds().toArray()),
                    new Not(AbstractSelect.VerticalLocationIs.MIDDLE));
        }

        protected List<UUID> getGroupConditionIds() {
            List<UUID> groupConditions = new ArrayList<>();
            List<AbstractCondition> list = conditions.toConditionsList();
            for (AbstractCondition condition : list) {
                if (condition instanceof GroupCondition)
                    groupConditions.add(condition.getId());
            }
            return groupConditions;
        }
    });
}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultFormLayoutDropHandler.java

License:Apache License

@Override
protected void handleComponentReordering(DragAndDropEvent event) {
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    FormLayoutTargetDetails details = (FormLayoutTargetDetails) event.getTargetDetails();
    DDFormLayout layout = (DDFormLayout) details.getTarget();

    Component comp = transferable.getComponent();
    int idx = details.getOverIndex();
    int oldIdx = layout.getComponentIndex(comp);

    if (idx == oldIdx) {
        // Dropping on myself
        return;/*from  www .java2  s  .  c om*/
    }

    // Detach
    layout.removeComponent(comp);
    if (idx > 0 && idx > oldIdx) {
        idx--;
    }

    // Increase index if component is dropped after or above a previous
    // component
    VerticalDropLocation loc = details.getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }
}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultFormLayoutDropHandler.java

License:Apache License

@Override
protected void handleDropFromLayout(DragAndDropEvent event) {
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    FormLayoutTargetDetails details = (FormLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    Component source = event.getTransferable().getSourceComponent();
    int idx = details.getOverIndex();
    Component comp = transferable.getComponent();

    // Check that we are not dragging an outer layout into an inner
    // layout//from w  ww. j a  v a 2s.co m
    Component parent = layout.getParent();
    while (parent != null) {
        if (parent == comp) {
            return;
        }
        parent = parent.getParent();
    }

    // Detach from old source
    if (source instanceof ComponentContainer) {
        ((ComponentContainer) source).removeComponent(comp);
    } else if (source instanceof SingleComponentContainer) {
        ((SingleComponentContainer) source).setContent(null);
    }

    // Increase index if component is dropped after or above a
    // previous
    // component
    VerticalDropLocation loc = (details).getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }
}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultFormLayoutDropHandler.java

License:Apache License

@Override
protected void handleHTML5Drop(DragAndDropEvent event) {
    FormLayoutTargetDetails details = (FormLayoutTargetDetails) event.getTargetDetails();
    int idx = details.getOverIndex();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();

    // Increase index if component is dropped after or above a
    // previous component
    VerticalDropLocation loc = details.getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;/*from  w  ww  . j ava2  s  .  c o  m*/
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(resolveComponentFromHTML5Drop(event), idx);
    } else {
        layout.addComponent(resolveComponentFromHTML5Drop(event));
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(resolveComponentFromHTML5Drop(event), dropAlignment);
    }
}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultVerticalLayoutDropHandler.java

License:Apache License

/**
 * Called when a component changed location within the layout
 * //from   w ww  .  ja va  2s . c  o m
 * @param event
 *            The drag and drop event
 */
@Override
protected void handleComponentReordering(DragAndDropEvent event) {
    // Component re-ordering
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    VerticalLayoutTargetDetails details = (VerticalLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    Component comp = transferable.getComponent();
    int idx = details.getOverIndex();
    int oldIndex = layout.getComponentIndex(comp);

    if (idx == oldIndex) {
        // Index did not change
        return;
    }

    // Detach
    layout.removeComponent(comp);

    // Account for detachment if new index is bigger then old index
    if (idx > oldIndex) {
        idx--;
    }

    // Increase index if component is dropped after or above a previous
    // component
    VerticalDropLocation loc = details.getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }

}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultVerticalLayoutDropHandler.java

License:Apache License

/**
 * Handle a drop from another layout//from   w w  w  .  j  a  va  2 s. co m
 * 
 * @param event
 *            The drag and drop event
 */
@Override
protected void handleDropFromLayout(DragAndDropEvent event) {
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    VerticalLayoutTargetDetails details = (VerticalLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    Component source = event.getTransferable().getSourceComponent();
    int idx = (details).getOverIndex();
    Component comp = transferable.getComponent();

    // Check that we are not dragging an outer layout into an inner
    // layout
    Component parent = layout.getParent();
    while (parent != null) {
        if (parent == comp) {
            return;
        }
        parent = parent.getParent();
    }

    // Detach from old source
    if (source instanceof ComponentContainer) {
        ((ComponentContainer) source).removeComponent(comp);
    } else if (source instanceof SingleComponentContainer) {
        ((SingleComponentContainer) source).setContent(null);
    }

    // Increase index if component is dropped after or above a
    // previous
    // component
    VerticalDropLocation loc = (details).getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }
}

---

From source file:com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.DefaultVerticalLayoutDropHandler.java

License:Apache License

@Override
protected void handleHTML5Drop(DragAndDropEvent event) {
    VerticalLayoutTargetDetails details = (VerticalLayoutTargetDetails) event.getTargetDetails();
    AbstractOrderedLayout layout = (AbstractOrderedLayout) details.getTarget();
    int idx = (details).getOverIndex();

    // Increase index if component is dropped after or above a
    // previous//  w w w .jav  a  2 s. co m
    // component
    VerticalDropLocation loc = (details).getDropLocation();
    if (loc == VerticalDropLocation.MIDDLE || loc == VerticalDropLocation.BOTTOM) {
        idx++;
    }

    Component comp = resolveComponentFromHTML5Drop(event);

    // Add component
    if (idx >= 0) {
        layout.addComponent(comp, idx);
    } else {
        layout.addComponent(comp);
    }

    // Add component alignment if given
    if (dropAlignment != null) {
        layout.setComponentAlignment(comp, dropAlignment);
    }

}

---

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

License:Apache License

/**
 * Emphasisizes a container element//from  w  w w .j a  v  a2 s.co m
 * 
 * @param element
 */
protected void emphasis(Element element, VDragEvent event) {

    // Find the tab
    StackItem tab = WidgetUtil.findWidget(element, StackItem.class);
    if (tab != null && getElement().isOrHasChild(tab.getElement()) && currentlyEmphasised != tab) {
        VerticalDropLocation location = getDropLocation(tab, event);

        if (location == VerticalDropLocation.MIDDLE) {
            if (tab.isOpen()) {
                tab.addStyleName(CLASSNAME_OVER);
            } else {
                tab.getWidget(0).addStyleName(CLASSNAME_OVER);
            }
        } else if (!spacer.isAttached()) {
            if (location == VerticalDropLocation.TOP) {
                insertSpacer(spacer, getElement(), getWidgetIndex(tab));
                tab.setHeight((tab.getOffsetHeight() - spacer.getOffsetHeight()) + "px");
            } else if (location == VerticalDropLocation.BOTTOM) {
                insertSpacer(spacer, getElement(), getWidgetIndex(tab) + 1);
                int newHeight = tab.getOffsetHeight() - spacer.getOffsetHeight();
                if (getWidgetIndex(spacer) == getWidgetCount() - 1) {
                    newHeight -= spacer.getOffsetHeight();
                }
                if (newHeight >= 0) {
                    tab.setHeight(newHeight + "px");
                }
            }
        }
        currentlyEmphasised = tab;
    }
}

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