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com.vaadin.client.ui.csslayout.
Class CssLayoutConnector
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All Implemented Interfaces:
com.google.gwt.event.shared.EventHandler,StateChangeEvent.StateChangeHandler,ComponentConnector,ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandler,HasComponentsConnector,HasWidget,ServerConnector,HasErrorIndicator,Connector,Serializablepublic class CssLayoutConnector extends AbstractLayoutConnectorConnects the server side widget
CssLayoutwith the client side counterpartVCssLayout.See Also:
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Field Summary
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Fields inherited from class com.vaadin.client.ui.AbstractComponentConnector
SIGNIFICANT_MOVE_THRESHOLD
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Constructor Summary
Constructors Constructor Description CssLayoutConnector()
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Method Summary
All Methods Modifier and Type Method Description CssLayoutStategetState()Returns the shared state object for this connector.
VCssLayoutgetWidget()Returns the widget associated with this paintable.
voidonConnectorHierarchyChange(ConnectorHierarchyChangeEvent event)Called by the framework when the list of child components of the connector implementing this interface has changed.
voidonStateChanged(StateChangeEvent stateChangeEvent)Notifies the event handler that the state has changed.
voidupdateCaption(ComponentConnector child)Update child components caption, description and error message.
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Methods inherited from class com.vaadin.client.ui.AbstractHasComponentsConnector
addConnectorHierarchyChangeHandler, getChildComponents, setChildComponents
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Methods inherited from class com.vaadin.client.ui.AbstractComponentConnector
createWidget, delegateCaptionHandling, flush, getIcon, getIconUri, getLayoutManager, getTooltipInfo, hasTooltip, isErrorIndicatorVisible, isRealUpdate, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, onDragSourceAttached, onDragSourceDetached, onDropTargetAttached, onDropTargetDetached, onUnregister, registerTouchHandlers, sendContextClickEvent, setWidgetEnabled, setWidgetStyleName, setWidgetStyleNameWithPrefix, shouldHandleLongTap, unregisterTouchHandlers, updateComponentSize, updateComponentSize, updateEnabledState, updateWidgetSize, updateWidgetStyleNames
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Methods inherited from class com.vaadin.client.ui.AbstractConnector
addStateChangeHandler, addStateChangeHandler, createState, doInit, ensureHandlerManager, fireEvent, forceStateChange, getChildren, getConnection, getConnectorId, getParent, getResourceUrl, getRpcImplementations, getRpcProxy, getStateType, getTag, hasEventListener, init, isEnabled, registerRpc, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, unregisterRpc
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.shared.Connector
getConnectorId
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Methods inherited from interface com.vaadin.client.ServerConnector
addStateChangeHandler, addStateChangeHandler, doInit, fireEvent, getChildren, getConnection, getParent, getRpcImplementations, getTag, hasEventListener, isEnabled, onUnregister, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, updateEnabledState
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Method Detail
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getState
public CssLayoutState getState()Description copied from class:
AbstractConnectorReturns the shared state object for this connector. Override this method to define the shared state type for your connector.
Specified by:
getStatein interfaceComponentConnectorSpecified by:
getStatein interfaceServerConnectorOverrides:
getStatein classAbstractLayoutConnectorReturns:
the current shared state (never null)
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onStateChanged
public void onStateChanged(StateChangeEvent stateChangeEvent)Description copied from interface:
StateChangeEvent.StateChangeHandlerNotifies the event handler that the state has changed.
Specified by:
onStateChangedin interfaceStateChangeEvent.StateChangeHandlerOverrides:
onStateChangedin classAbstractComponentConnectorParameters:
stateChangeEvent- the state change event with details about the change
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onConnectorHierarchyChange
public void onConnectorHierarchyChange(ConnectorHierarchyChangeEvent event)Description copied from interface:
ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandlerCalled 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.
Parameters:
event- the event with information about the hierarchy change
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getWidget
public VCssLayout getWidget()Description copied from class:
AbstractComponentConnectorReturns the widget associated with this paintable. The widget returned by this method must not changed during the life time of the paintable.
Specified by:
getWidgetin interfaceHasWidgetOverrides:
getWidgetin classAbstractComponentConnectorReturns:
The widget associated with this paintable
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updateCaption
public void updateCaption(ComponentConnector child)Description copied from interface:
HasComponentsConnectorUpdate 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.
Parameters:
child- Child component for which service is requested.
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