Examples with VerticalLayoutTargetDetails com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDVerticalLayout.VerticalLayoutTargetDetails used on opensource projects

Example 1 with VerticalLayoutTargetDetails

use of com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDVerticalLayout.VerticalLayoutTargetDetails in project cuba by cuba-platform.

the class DefaultVerticalLayoutDropHandler method handleComponentReordering.

/**
 * Called when a component changed location within the layout
 *
 * @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);
    }
}

Example 2 with VerticalLayoutTargetDetails

use of com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDVerticalLayout.VerticalLayoutTargetDetails in project cuba by cuba-platform.

the class DefaultVerticalLayoutDropHandler method handleHTML5Drop.

@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
    // 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);
    }
}

Example 3 with VerticalLayoutTargetDetails

use of com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDVerticalLayout.VerticalLayoutTargetDetails in project cuba by cuba-platform.

the class DefaultVerticalLayoutDropHandler method handleDropFromLayout.

/**
 * Handle a drop from another layout
 *
 * @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);
    }
}