com.vaadin.client.extensions

Class ResponsiveConnector

java.lang.Object

com.vaadin.client.ui.AbstractConnector

com.vaadin.client.extensions.AbstractExtensionConnector

com.vaadin.client.extensions.ResponsiveConnector

All Implemented Interfaces:

com.google.gwt.event.shared.EventHandler, StateChangeEvent.StateChangeHandler, ServerConnector, ElementResizeListener, Connector, Serializable

public class ResponsiveConnector
extends AbstractExtensionConnector
implements ElementResizeListener

The client side connector for the Responsive extension.

Since:

7.2

Author:

Vaadin Ltd

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.gwt.core.client.JavaScriptObject	heightBreakpoints All the height breakpoints found for this particular instance.
protected static com.google.gwt.core.client.JavaScriptObject	heightRangeCache All height-range breakpoints found from the style sheets on the page.
protected static String	parsedTheme The theme that was in use when the width and height range caches were created.
protected AbstractComponentConnector	target The target component which we will monitor for width changes.
protected com.google.gwt.core.client.JavaScriptObject	widthBreakpoints All the width breakpoints found for this particular instance.
protected static com.google.gwt.core.client.JavaScriptObject	widthRangeCache All width-range breakpoints found from the style sheets on the page.

Constructor Summary

Constructors

Constructor and Description
ResponsiveConnector()

Method Summary

Modifier and Type	Method and Description
protected String	constructSelectorsForTarget() Construct the list of selectors that should be matched against in the range selectors.
protected void	extend(ServerConnector target) Called when the extension is attached to its parent.
ResponsiveState	getState() Returns the shared state object for this connector.
void	onElementResize(ElementResizeEvent event) Perform actions after element resize.
void	onStateChanged(StateChangeEvent event) Notifies the event handler that the state has changed.
void	onUnregister() Event called when connector has been unregistered.

Methods inherited from class com.vaadin.client.extensions.AbstractExtensionConnector

setParent

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, setTag, unregisterRpc, updateEnabledState

Methods inherited from class java.lang.Object

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

Field Detail

target

protected AbstractComponentConnector target

The target component which we will monitor for width changes.

widthBreakpoints

protected com.google.gwt.core.client.JavaScriptObject widthBreakpoints

All the width breakpoints found for this particular instance.

heightBreakpoints

protected com.google.gwt.core.client.JavaScriptObject heightBreakpoints

All the height breakpoints found for this particular instance.

widthRangeCache

protected static com.google.gwt.core.client.JavaScriptObject widthRangeCache

All width-range breakpoints found from the style sheets on the page. Common for all instances.

heightRangeCache

protected static com.google.gwt.core.client.JavaScriptObject heightRangeCache

All height-range breakpoints found from the style sheets on the page. Common for all instances.

parsedTheme

protected static String parsedTheme

The theme that was in use when the width and height range caches were created.

Constructor Detail

ResponsiveConnector

public ResponsiveConnector()

Method Detail

extend

protected void extend(ServerConnector target)

Description copied from class: AbstractExtensionConnector

Called when the extension is attached to its parent. This method is only called once as an extension cannot be moved from one parent to another.

Specified by:

extend in class AbstractExtensionConnector

Parameters:

target - The connector this extension extends

constructSelectorsForTarget

protected String constructSelectorsForTarget()

Construct the list of selectors that should be matched against in the range selectors.

Returns:

The selectors in a comma delimited string.

onUnregister

public void onUnregister()

Description copied from interface: ServerConnector

Event called when connector has been unregistered.

Specified by:

onUnregister in interface ServerConnector

Overrides:

onUnregister in class AbstractConnector

onStateChanged

public void onStateChanged(StateChangeEvent event)

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 AbstractConnector

Parameters:

event - the state change event with details about the change

onElementResize

public void onElementResize(ElementResizeEvent event)

Description copied from interface: ElementResizeListener

Perform actions after element resize.

Specified by:

onElementResize in interface ElementResizeListener

Parameters:

event - the element resize event

getState

public ResponsiveState 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 ServerConnector

Overrides:

getState in class AbstractConnector

Returns:

the current shared state (never null)