org.eclipse.e4.ui.workbench

Class UIEvents

java.lang.Object

org.eclipse.e4.ui.workbench.UIEvents

public class UIEvents
extends java.lang.Object

E4 UI events and event topic definitions. This file contains generated and hand crafted event topic constants. There are also hand crafted utility methods for constructing topic strings and publishing events. When the UI model changes org.eclipse.e4.ui.internal.workbench.swt.GenTopic should be run as an Eclipse application and the console results should be pasted into this file replacing the code below the "Place Generated Code Here" comment

Since:

1.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	UIEvents.Application
static interface	UIEvents.ApplicationElement
static interface	UIEvents.BindingContext GENERATED CODE!!
static interface	UIEvents.Bindings
static interface	UIEvents.BindingTable
static interface	UIEvents.BindingTableContainer
static interface	UIEvents.Category
static interface	UIEvents.Command
static interface	UIEvents.CommandParameter
static interface	UIEvents.Context
static interface	UIEvents.Contribution
static interface	UIEvents.CoreExpression
static interface	UIEvents.Dirtyable
static interface	UIEvents.ElementContainer
static interface	UIEvents.EventTags E4 UI Event argument attribute keys.
static interface	UIEvents.EventTypes E4 UI Event Types.
static interface	UIEvents.GenericTile
static interface	UIEvents.GenericTrimContainer
static interface	UIEvents.HandledItem
static interface	UIEvents.Handler
static interface	UIEvents.HandlerContainer
static interface	UIEvents.ImperativeExpression
static interface	UIEvents.Input
static interface	UIEvents.Item
static interface	UIEvents.KeyBinding
static interface	UIEvents.KeySequence
static interface	UIEvents.Menu
static interface	UIEvents.MenuContribution
static interface	UIEvents.MenuContributions
static interface	UIEvents.MenuElement
static interface	UIEvents.OpaqueMenuItem
static interface	UIEvents.OpaqueMenuSeparator
static interface	UIEvents.OpaqueToolItem
static interface	UIEvents.Parameter
static interface	UIEvents.Part
static interface	UIEvents.PartDescriptor
static interface	UIEvents.PartDescriptorContainer
static interface	UIEvents.Perspective
static interface	UIEvents.Placeholder
static interface	UIEvents.RenderedMenu
static interface	UIEvents.RenderedMenuItem
static interface	UIEvents.RenderedToolBar
static interface	UIEvents.SnippetContainer
static interface	UIEvents.StringToObjectMap
static interface	UIEvents.StringToStringMap
static interface	UIEvents.ToolBarContribution
static interface	UIEvents.ToolBarContributions
static interface	UIEvents.ToolItem
static interface	UIEvents.TrimBar
static interface	UIEvents.TrimContribution
static interface	UIEvents.TrimContributions
static interface	UIEvents.TrimmedWindow
static interface	UIEvents.UIElement
static interface	UIEvents.UILabel
static interface	UIEvents.UILifeCycle E4 UI life cycle events.
static interface	UIEvents.Window

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ALL_ELEMENT_ID Special id passed to force all elements to be checked
static java.lang.String	ALL_SUB_TOPICS Wild card character for matching all sub topics
static java.lang.String	REQUEST_ENABLEMENT_UPDATE_TOPIC Event sent when a enabled update is requested for tool-items.
static java.lang.String	TOPIC_SEP Topic separator character
static java.lang.String	UIModelTopicBase Name element for all E4 UI model events (these are generated by GenTopic)
static java.lang.String	UIRendererTopicBase Name element for E4 Renderer events
static java.lang.String	UITopicBase Base name of all E4 UI events

Constructor Summary

Constructors

Constructor and Description
UIEvents()

Method Summary

Modifier and Type	Method and Description
static java.lang.Iterable<?>	asIterable(Event event, java.lang.String propertyName) Return the provided event property as an iterable.
static java.lang.String	buildTopic(java.lang.String topic) Deprecated.
static java.lang.String	buildTopic(java.lang.String topic, java.lang.String attrName) Deprecated.
static java.lang.String	buildTopic(java.lang.String topic, java.lang.String attrName, java.lang.String eventType) Deprecated.
static boolean	contains(Event event, java.lang.String propertyName, java.lang.Object o) Return true if the specified property contains o.
static boolean	isADD(Event event)
static boolean	isCREATE(Event event)
static boolean	isREMOVE(Event event)
static boolean	isSET(Event event)
static boolean	publishEvent(java.lang.String topic, MUIElement changedElement) Publish the topic to the changedElements global event bus.

Methods inherited from class java.lang.Object

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

Field Detail

TOPIC_SEP

public static final java.lang.String TOPIC_SEP

Topic separator character

See Also:

Constant Field Values

ALL_SUB_TOPICS

public static final java.lang.String ALL_SUB_TOPICS

Wild card character for matching all sub topics

See Also:

Constant Field Values

UITopicBase

public static final java.lang.String UITopicBase

Base name of all E4 UI events

See Also:

Constant Field Values

UIModelTopicBase

public static final java.lang.String UIModelTopicBase

Name element for all E4 UI model events (these are generated by GenTopic)

See Also:

Constant Field Values

UIRendererTopicBase

public static final java.lang.String UIRendererTopicBase

Name element for E4 Renderer events

Since:

1.1

See Also:

Constant Field Values

REQUEST_ENABLEMENT_UPDATE_TOPIC

public static final java.lang.String REQUEST_ENABLEMENT_UPDATE_TOPIC

Event sent when a enabled update is requested for tool-items.

As a value you may pass in to the IEventBroker#DATA:

• the special value ALL_ELEMENT_ID to request changes of all applicable elements (the default)
• the MApplicationElement#getElementId() of the element to check
• instance of Selector

Since:

1.1

See Also:

Constant Field Values

ALL_ELEMENT_ID

public static final java.lang.String ALL_ELEMENT_ID

Special id passed to force all elements to be checked

Since:

1.1

See Also:

Constant Field Values

Constructor Detail

UIEvents

public UIEvents()

Method Detail

isADD

public static boolean isADD(Event event)

Parameters:

event - An OSGI event representing a UIEvent

Returns:

true if it is an add event (i.e., UIEvents.EventTypes.ADD or UIEvents.EventTypes.ADD_MANY), or false otherwise.

See Also:

UIEvents.EventTags.NEW_VALUE, asIterable(Event, String)

isREMOVE

public static boolean isREMOVE(Event event)

Parameters:

event - An OSGI event representing a UIEvent

Returns:

true if it is a remove event (i.e., UIEvents.EventTypes.REMOVE or UIEvents.EventTypes.REMOVE_MANY), or false otherwise.

See Also:

UIEvents.EventTags.OLD_VALUE, asIterable(Event, String)

isSET

public static boolean isSET(Event event)

Parameters:

event - An OSGI event representing a UIEvent

Returns:

true if it is a set event, false otherwise.

isCREATE

public static boolean isCREATE(Event event)

Parameters:

event - An OSGI event representing a UIEvent

Returns:

true if it is a create event, false otherwise.

contains

public static boolean contains(Event event,
                               java.lang.String propertyName,
                               java.lang.Object o)

Return true if the specified property contains o. Intended as a helper function for UIEvents.EventTypes.ADD, UIEvents.EventTypes.ADD_MANY, UIEvents.EventTypes.REMOVE, and UIEvents.EventTypes.REMOVE_MANY. If the property is not a container (e.g., a collection or array), then return true then if container is equal to o.

Parameters:

event - the event

propertyName - the property name

o - the object to check for containment

Returns:

true if the property value contains o or is equal to o

asIterable

public static java.lang.Iterable<?> asIterable(Event event,
                                               java.lang.String propertyName)

Return the provided event property as an iterable. If already a collection, return the collection.

Parameters:

event - the event object

propertyName - the name of the property

Returns:

an iterable collection over the property elements

publishEvent

public static boolean publishEvent(java.lang.String topic,
                                   MUIElement changedElement)

Publish the topic to the changedElements global event bus. The changedElement is added the the EventTags.ELEMENT tag.

Parameters:

topic - to broadcast

changedElement - the element that changed

Returns:

true if the event is published correctly, false otherwise

buildTopic

@Deprecated
public static java.lang.String buildTopic(java.lang.String topic)

Deprecated.

buildTopic

@Deprecated
public static java.lang.String buildTopic(java.lang.String topic,
                                                      java.lang.String attrName)

Deprecated.

buildTopic

@Deprecated
public static java.lang.String buildTopic(java.lang.String topic,
                                                      java.lang.String attrName,
                                                      java.lang.String eventType)

Deprecated.