com.vaadin.client.ui.absolutelayout

Class AbsoluteLayoutConnector

java.lang.Object

com.vaadin.client.ui.AbstractConnector

com.vaadin.client.ui.AbstractComponentConnector

com.vaadin.client.ui.AbstractHasComponentsConnector

com.vaadin.client.ui.AbstractComponentContainerConnector

com.vaadin.client.ui.absolutelayout.AbsoluteLayoutConnector

All Implemented Interfaces:

com.google.gwt.event.shared.EventHandler, StateChangeEvent.StateChangeHandler, ComponentConnector, ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandler, DirectionalManagedLayout, HasComponentsConnector, HasWidget, ServerConnector, HasErrorIndicator, ManagedLayout, Connector, Serializable

public class AbsoluteLayoutConnector
extends AbstractComponentContainerConnector
implements DirectionalManagedLayout

Connects the server side AbsoluteLayout with the client side counterpart VAbsoluteLayout.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.vaadin.client.ui.AbstractComponentConnector

SIGNIFICANT_MOVE_THRESHOLD

Constructor Summary

Constructors

Constructor and Description
AbsoluteLayoutConnector()

Method Summary

Modifier and Type	Method and Description
protected ComponentConnector	getConnectorForElement(com.google.gwt.user.client.Element element) Deprecated. As of 7.2, call or override getConnectorForElement(Element) instead
protected ComponentConnector	getConnectorForElement(com.google.gwt.dom.client.Element element) Returns the deepest nested child component which contains "element".
AbsoluteLayoutState	getState() Returns the shared state object for this connector.
VAbsoluteLayout	getWidget() Returns the widget associated with this paintable.
void	layoutHorizontally()
void	layoutVertically()
void	onConnectorHierarchyChange(ConnectorHierarchyChangeEvent event) Called by the framework when the list of child components of the connector implementing this interface has changed.
void	onStateChanged(StateChangeEvent stateChangeEvent) Notifies the event handler that the state has changed.
void	updateCaption(ComponentConnector childConnector) Update child components caption, description and error message.

Methods inherited from class com.vaadin.client.ui.AbstractHasComponentsConnector

addConnectorHierarchyChangeHandler, getChildComponents, setChildComponents

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

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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.client.ComponentConnector

delegateCaptionHandling, flush, getLayoutManager, getTooltipInfo, hasTooltip, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, setWidgetEnabled

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

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Constructor Detail

AbsoluteLayoutConnector

public AbsoluteLayoutConnector()

Method Detail

getConnectorForElement

@Deprecated
protected ComponentConnector getConnectorForElement(com.google.gwt.user.client.Element element)

Deprecated. As of 7.2, call or override getConnectorForElement(Element) instead

Returns the deepest nested child component which contains "element". The child component is also returned if "element" is part of its caption.

Parameters:

element - An element that is a nested sub element of the root element in this layout

Returns:

The Paintable which the element is a part of. Null if the element belongs to the layout and not to a child.

getConnectorForElement

protected ComponentConnector getConnectorForElement(com.google.gwt.dom.client.Element element)

Returns the deepest nested child component which contains "element". The child component is also returned if "element" is part of its caption.

Parameters:

element - An element that is a nested sub element of the root element in this layout

Returns:

The Paintable which the element is a part of. Null if the element belongs to the layout and not to a child.

Since:

7.2

updateCaption

public void updateCaption(ComponentConnector childConnector)

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:

childConnector - Child component for which service is requested.

getWidget

public VAbsoluteLayout 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

getState

public AbsoluteLayoutState getState()

Description copied from class: AbstractConnector

Returns the shared state object for this connector. Override this method to define the shared state type for your connector.

Specified by:

getState in interface ComponentConnector

Specified by:

getState in interface ServerConnector

Overrides:

getState in class AbstractComponentConnector

Returns:

the current shared state (never null)

onStateChanged

public void onStateChanged(StateChangeEvent stateChangeEvent)

Description copied from interface: StateChangeEvent.StateChangeHandler

Notifies the event handler that the state has changed.

Specified by:

onStateChanged in interface StateChangeEvent.StateChangeHandler

Overrides:

onStateChanged in class AbstractComponentConnector

Parameters:

stateChangeEvent - the state change event with details about the change

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

layoutVertically

public void layoutVertically()

Specified by:

layoutVertically in interface DirectionalManagedLayout

layoutHorizontally

public void layoutHorizontally()

Specified by:

layoutHorizontally in interface DirectionalManagedLayout