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com.vaadin.client.ui.composite.

Class CompositeConnector

    • Constructor Detail

      • CompositeConnector

        public CompositeConnector()

    • Method Detail

      • createWidget

        protected com.google.gwt.user.client.ui.Widget createWidget()

        Description copied from class: AbstractComponentConnector

        Creates and returns the widget for this VPaintableWidget. This method should only be called once when initializing the paintable.

        You should typically not override this method since the framework by default generates an implementation that uses GWT.create(Class) to create a widget of the same type as returned by the most specific override of AbstractComponentConnector.getWidget(). If you do override the method, you can't call super.createWidget() since the metadata needed for that implementation is not generated if there's an override of the method.

        Overrides:

        createWidget in class AbstractComponentConnector

        Returns:

        a new widget instance to use for this component connector

      • getWidget

        public com.google.gwt.user.client.ui.Widget getWidget()

        Description copied from class: AbstractComponentConnector

        Returns the widget associated with this paintable. The widget returned by this method must not changed during the life time of the paintable.

        Specified by:

        getWidget in interface HasWidget

        Overrides:

        getWidget in class AbstractComponentConnector

        Returns:

        The widget associated with this paintable

      • updateCaption

        public void updateCaption​(ComponentConnector component)

        Description copied from interface: HasComponentsConnector

        Update child components caption, description and error message.

        Each component is responsible for maintaining its caption, description and error message. In most cases components doesn't want to do that and those elements reside outside of the component. Because of this layouts must provide service for it's childen to show those elements for them.

        Specified by:

        updateCaption in interface HasComponentsConnector

        Parameters:

        component - Child component for which service is requested.

      • onConnectorHierarchyChange

        public void onConnectorHierarchyChange​(ConnectorHierarchyChangeEvent event)

        Description copied from interface: ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandler

        Called by the framework when the list of child components of the connector implementing this interface has changed. The implementation is responsible for attaching the widgets of any new children and detaching the widgets of any removed children. Implementations should typically also make sure that the child widgets are attached according to the ordering of the child components.

        This method is called after the shared state and hierarchy data (i.e. AbstractHasComponentsConnector.setChildComponents(List)) been updated for all affected connectors, but before updating captions, firing state change events, invoking updateFromUIDL for legacy connectors, invoking RPC and starting the layout phase.

        Please note that hierarchy change events are fired in a non-deterministic order when a message from the server causes multiple parts of the hierarchy to change. This means that the old parent connector might not yet have detached a child widget and that the widget of a removed child might already have been attached by its new parent.

        Specified by:

        onConnectorHierarchyChange in interface ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandler

        Parameters:

        event - the event with information about the hierarchy change

      • sendContextClickEvent

        protected void sendContextClickEvent​(MouseEventDetails details,
                                     com.google.gwt.dom.client.EventTarget eventTarget)

        Description copied from class: AbstractComponentConnector

        This method sends the context menu event to the server-side. Can be overridden to provide extra information through an alternative RPC interface.

        Overrides:

        sendContextClickEvent in class AbstractComponentConnector

        Parameters:

        details - the mouse event details

        eventTarget - the target of the event

      • delegateCaptionHandling

        public boolean delegateCaptionHandling()

        Description copied from interface: ComponentConnector

        Return true if parent handles caption, false if the paintable handles the caption itself.

        This should always return true and all components should let the parent handle the caption and use other attributes for internal texts in the component

        Specified by:

        delegateCaptionHandling in interface ComponentConnector

        Overrides:

        delegateCaptionHandling in class AbstractComponentConnector

        Returns:

        true if caption handling is delegated to the parent, false if parent should not be allowed to render caption