API Docs for: 3.18.1

ChartLegend Class

Extends Widget
Defined in: charts/js/ChartLegend.js:1
Module: charts-legend
Parent Module: charts

ChartLegend provides a legend for a chart.

Methods

addAttr

(
  • name
  • config
  • lazy
)
Object chainable

Inherited from AttributeCore: attribute/js/AttributeCore.js:157

Adds an attribute with the provided configuration to the host object.

The config argument object supports the following properties:

value <Any>
The initial value to set on the attribute
valueFn <Function | String>

A function, which will return the initial value to set on the attribute. This is useful for cases where the attribute configuration is defined statically, but needs to reference the host instance ("this") to obtain an initial value. If both the value and valueFn properties are defined, the value returned by the valueFn has precedence over the value property, unless it returns undefined, in which case the value property is used.

valueFn can also be set to a string, representing the name of the instance method to be used to retrieve the value.

readOnly <boolean>
Whether or not the attribute is read only. Attributes having readOnly set to true cannot be modified by invoking the set method.
writeOnce <boolean> or <string>
Whether or not the attribute is "write once". Attributes having writeOnce set to true, can only have their values set once, be it through the default configuration, constructor configuration arguments, or by invoking set.

The writeOnce attribute can also be set to the string "initOnly", in which case the attribute can only be set during initialization (when used with Base, this means it can only be set during construction)

setter <Function | String>

The setter function used to massage or normalize the value passed to the set method for the attribute. The value returned by the setter will be the final stored value. Returning Attribute.INVALID_VALUE, from the setter will prevent the value from being stored.

setter can also be set to a string, representing the name of the instance method to be used as the setter function.

getter <Function | String>

The getter function used to massage or normalize the value returned by the get method for the attribute. The value returned by the getter function is the value which will be returned to the user when they invoke get.

getter can also be set to a string, representing the name of the instance method to be used as the getter function.

validator <Function | String>

The validator function invoked prior to setting the stored value. Returning false from the validator function will prevent the value from being stored.

validator can also be set to a string, representing the name of the instance method to be used as the validator function.

lazyAdd <boolean>
Whether or not to delay initialization of the attribute until the first call to get/set it. This flag can be used to over-ride lazy initialization on a per attribute basis, when adding multiple attributes through the addAttrs method.

The setter, getter and validator are invoked with the value and name passed in as the first and second arguments, and with the context ("this") set to the host object.

Configuration properties outside of the list mentioned above are considered private properties used internally by attribute, and are not intended for public use.

Parameters:

  • name String

    The name of the attribute.

  • config Object

    An object with attribute configuration property/value pairs, specifying the configuration for the attribute.

    NOTE: The configuration object is modified when adding an attribute, so if you need to protect the original values, you will need to merge the object.

  • lazy Boolean

    (optional) Whether or not to add this attribute lazily (on the first call to get/set).

Returns:

Object:

A reference to the host object.

addAttrs

(
  • cfgs
  • values
  • lazy
)
Object chainable

Inherited from AttributeCore: attribute/js/AttributeCore.js:823

Configures a group of attributes, and sets initial values.

NOTE: This method does not isolate the configuration object by merging/cloning. The caller is responsible for merging/cloning the configuration object if required.

Parameters:

  • cfgs Object

    An object with attribute name/configuration pairs.

  • values Object

    An object with attribute name/value pairs, defining the initial values to apply. Values defined in the cfgs argument will be over-written by values in this argument unless defined as read only.

  • lazy Boolean

    Whether or not to delay the intialization of these attributes until the first call to get/set. Individual attributes can over-ride this behavior by defining a lazyAdd configuration property in their configuration. See addAttr.

Returns:

Object:

A reference to the host object.

addTarget

(
  • o
)
chainable

Inherited from EventTarget: event-custom/js/event-facade.js:496

Registers another EventTarget as a bubble target. Bubble order is determined by the order registered. Multiple targets can be specified.

Events can only bubble if emitFacade is true.

Included in the event-custom-complex submodule.

Parameters:

after

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Inherited from EventTarget: event-custom/js/event-target.js:812

Subscribe to a custom event hosted by this object. The supplied callback will execute after any listeners add via the subscribe method, and after the default function, if configured for the event, has executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching the subscription

ancestor

(
  • depth
)
Widget

Inherited from Widget: widget-child/js/Widget-Child.js:279

Returns the Widget instance at the specified depth.

Parameters:

  • depth Number

    Number representing the depth of the ancestor.

Returns:

Widget:

Widget instance.

attrAdded

(
  • name
)
Boolean

Inherited from AttributeCore: attribute/js/AttributeCore.js:319

Checks if the given attribute has been added to the host

Parameters:

  • name String

    The name of the attribute to check.

Returns:

Boolean:

true if an attribute with the given name has been added, false if it hasn't. This method will return true for lazily added attributes.

before

()

Inherited from EventTarget: event-custom/js/event-target.js:849

Executes the callback before a DOM event, custom event or method. If the first argument is a function, it is assumed the target is a method. For DOM and custom events, this is an alias for Y.on.

For DOM and custom events: type, callback, context, 0-n arguments

For methods: callback, object (method host), methodName, context, 0-n arguments

Returns:

detach handle

blur

() chainable

Inherited from Widget: widget/js/Widget.js:669

Causes the Widget to lose focus by setting the "focused" attribute to "false"

bubble

(
  • evt
)
Boolean

Inherited from EventTarget: event-custom/js/event-facade.js:554

Propagate an event. Requires the event-custom-complex module.

Parameters:

Returns:

Boolean:

the aggregated return value from Event.Custom.fire

destroy

(
  • destroyAllNodes
)
Widget chainable

Inherited from BaseObservable but overwritten in widget/js/Widget.js:448

Destroy lifecycle method. Fires the destroy event, prior to invoking destructors for the class hierarchy. Overrides Base's implementation, to support arguments to destroy

Subscribers to the destroy event can invoke preventDefault on the event object, to prevent destruction from proceeding.

Parameters:

  • destroyAllNodes Boolean

    If true, all nodes contained within the Widget are removed and destroyed. Defaults to false due to potentially high run-time cost.

Returns:

Widget:

A reference to this object

detach

(
  • type
  • fn
  • context
)
EventTarget

Inherited from EventTarget: event-custom/js/event-target.js:356

Detach one or more listeners the from the specified event

Parameters:

  • type String | Object

    Either the handle to the subscriber or the type of event. If the type is not specified, it will attempt to remove the listener from all hosted events.

  • fn Function

    The subscribed function to unsubscribe, if not supplied, all subscribers will be removed.

  • context Object

    The custom object passed to subscribe. This is optional, but if supplied will be used to disambiguate multiple listeners that are the same (e.g., you subscribe many object using a function that lives on the prototype)

Returns:

EventTarget:

the host

detachAll

(
  • type
)

Inherited from EventTarget: event-custom/js/event-target.js:479

Removes all listeners from the specified event. If the event type is not specified, all listeners from all hosted custom events will be removed.

Parameters:

  • type String

    The type, or name of the event

disable

() chainable

Inherited from Widget: widget/js/Widget.js:688

Set the Widget's "disabled" attribute to "true".

enable

() chainable

Inherited from Widget: widget/js/Widget.js:679

Set the Widget's "disabled" attribute to "false".

fire

(
  • type
  • arguments
)
Boolean

Inherited from EventTarget: event-custom/js/event-target.js:673

Fire a custom event by name. The callback functions will be executed from the context specified when the event was created, and with the following parameters.

The first argument is the event type, and any additional arguments are passed to the listeners as parameters. If the first of these is an object literal, and the event is configured to emit an event facade, that object is mixed into the event facade and the facade is provided in place of the original object.

If the custom event object hasn't been created, then the event hasn't been published and it has no subscribers. For performance sake, we immediate exit in this case. This means the event won't bubble, so if the intention is that a bubble target be notified, the event must be published on this object first.

Parameters:

  • type String | Object

    The type of the event, or an object that contains a 'type' property.

  • arguments Object*

    an arbitrary set of parameters to pass to the handler. If the first of these is an object literal and the event is configured to emit an event facade, the event facade will replace that parameter after the properties the object literal contains are copied to the event facade.

Returns:

Boolean:

True if the whole lifecycle of the event went through, false if at any point the event propagation was halted.

focus

() chainable

Inherited from Widget: widget/js/Widget.js:659

Causes the Widget to receive the focus by setting the "focused" attribute to "true".

get

(
  • name
)
Any

Inherited from AttributeCore: attribute/js/AttributeCore.js:331

Returns the current value of the attribute. If the attribute has been configured with a 'getter' function, this method will delegate to the 'getter' to obtain the value of the attribute.

Parameters:

  • name String

    The name of the attribute. If the value of the attribute is an Object, dot notation can be used to obtain the value of a property of the object (e.g. get("x.y.z"))

Returns:

Any:

The value of the attribute

getAttrs

(
  • attrs
)
Object

Inherited from AttributeCore: attribute/js/AttributeCore.js:780

Gets multiple attribute values.

Parameters:

  • attrs String[] | Boolean

    Optional. An array of attribute names. If omitted, all attribute values are returned. If set to true, all attributes modified from their initial values are returned.

Returns:

Object:

An object with attribute name/value pairs.

getClassName

(
  • args
)

Inherited from Widget but overwritten in widget/js/Widget.js:309

Generate a standard prefixed classname for the Widget, prefixed by the default prefix defined by the Y.config.classNamePrefix attribute used by ClassNameManager and Widget.NAME.toLowerCase() (e.g. "yui-widget-xxxxx-yyyyy", based on default values for the prefix and widget class name).

The instance based version of this method can be used to generate standard prefixed classnames, based on the instances NAME, as opposed to Widget.NAME. This method should be used when you need to use a constant class name across different types instances.

Parameters:

  • args String* multiple

    0..n strings which should be concatenated, using the default separator defined by ClassNameManager, to create the class name

getEvent

(
  • type
  • prefixed
)
CustomEvent

Inherited from EventTarget: event-custom/js/event-target.js:793

Returns the custom event of the provided type has been created, a falsy value otherwise

Parameters:

  • type String

    the type, or name of the event

  • prefixed String

    if true, the type is prefixed already

Returns:

CustomEvent:

the custom event or null

getSkinName

(
  • [skinPrefix]
)
String

Inherited from Widget: widget/js/WidgetSkin.js:12

Returns the name of the skin that's currently applied to the widget.

Searches up the Widget's ancestor axis for, by default, a class yui3-skin-(name), and returns the (name) portion. Otherwise, returns null.

This is only really useful after the widget's DOM structure is in the document, either by render or by progressive enhancement.

Parameters:

  • [skinPrefix] String optional

    The prefix which the implementation uses for the skin ("yui3-skin-" is the default).

    NOTE: skinPrefix will be used as part of a regular expression:

    new RegExp('\b' + skinPrefix + '(\S+)')

    Although an unlikely use case, literal characters which may result in an invalid regular expression should be escaped.

Returns:

String:

The name of the skin, or null, if a matching skin class is not found.

getString

(
  • key
)
String deprecated

Inherited from Widget: widget/js/Widget.js:1240

Deprecated: Used by deprecated WidgetLocale implementations.

Helper method to get a specific string value

Parameters:

Returns:

String:

The string

getStrings

(
  • key
)
String deprecated

Inherited from Widget: widget/js/Widget.js:1252

Deprecated: Used by deprecated WidgetLocale implementations.

Helper method to get the complete set of strings for the widget

Parameters:

Returns:

String:

The strings

getTargets

()

Inherited from EventTarget: event-custom/js/event-facade.js:523

Returns an array of bubble targets for this object.

Returns:

EventTarget[]

hide

() chainable

Inherited from Widget: widget/js/Widget.js:641

Hides the Widget by setting the "visible" attribute to "false".

init

(
  • cfg
)
BaseCore chainable

Inherited from BaseObservable but overwritten in base/js/BaseCore.js:319

Init lifecycle method, invoked during construction. Sets up attributes and invokes initializers for the class hierarchy.

Parameters:

  • cfg Object

    Object with configuration property name/value pairs

Returns:

BaseCore:

A reference to this object

isRoot

() Boolean

Inherited from Widget: widget-child/js/Widget-Child.js:267

Determines if the Widget is the root Widget in the object hierarchy.

Returns:

Boolean:

Boolean indicating if Widget is the root Widget in the object hierarchy.

modifyAttr

(
  • name
  • config
)

Inherited from AttributeExtras: attribute/js/AttributeExtras.js:40

Updates the configuration of an attribute which has already been added.

The properties which can be modified through this interface are limited to the following subset of attributes, which can be safely modified after a value has already been set on the attribute:

readOnly;
writeOnce;
broadcast; and
getter.

Note: New attributes cannot be added using this interface. New attributes must be added using addAttr, or an appropriate manner for a class which utilises Attributes (e.g. the ATTRS property in Base).

Parameters:

  • name String

    The name of the attribute whose configuration is to be updated.

  • config Object

    An object with configuration property/value pairs, specifying the configuration properties to modify.

next

(
  • circular
)
Widget

Inherited from Widget: widget-child/js/Widget-Child.js:191

Returns the Widget's next sibling.

Parameters:

  • circular Boolean

    Boolean indicating if the parent's first child should be returned if the child has no next sibling.

Returns:

Widget:

Widget instance.

on

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Inherited from EventTarget: event-custom/js/event-target.js:188

Subscribe a callback function to a custom event fired by this object or from an object that bubbles its events to this object.

 this.on("change", this._onChange, this);

Callback functions for events published with emitFacade = true will receive an EventFacade as the first argument (typically named "e"). These callbacks can then call e.preventDefault() to disable the behavior published to that event's defaultFn. See the EventFacade API for all available properties and methods. Subscribers to non-emitFacade events will receive the arguments passed to fire() after the event name.

To subscribe to multiple events at once, pass an object as the first argument, where the key:value pairs correspond to the eventName:callback.

 this.on({
     "attrChange" : this._onAttrChange,
     "change"     : this._onChange
 });

You can also pass an array of event names as the first argument to subscribe to all listed events with the same callback.

 this.on([ "change", "attrChange" ], this._onChange);

Returning false from a callback is supported as an alternative to calling e.preventDefault(); e.stopPropagation();. However, it is recommended to use the event methods whenever possible.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching that subscription

once

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Inherited from EventTarget: event-custom/js/event-target.js:124

Listen to a custom event hosted by this object one time. This is the equivalent to on except the listener is immediatelly detached when it is executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching the subscription

onceAfter

(
  • type
  • fn
  • [context]
  • [arg*]
)
EventHandle

Inherited from EventTarget: event-custom/js/event-target.js:146

Listen to a custom event hosted by this object one time. This is the equivalent to after except the listener is immediatelly detached when it is executed.

Parameters:

  • type String

    The name of the event

  • fn Function

    The callback to execute in response to the event

  • [context] Object optional

    Override this object in callback

  • [arg*] Any optional

    0..n additional arguments to supply to the subscriber

Returns:

EventHandle:

A subscription handle capable of detaching that subscription

parseType

(
  • type
  • [pre]
)
Array

Inherited from EventTarget: event-custom/js/event-target.js:168

Available since 3.3.0

Takes the type parameter passed to 'on' and parses out the various pieces that could be included in the type. If the event type is passed without a prefix, it will be expanded to include the prefix one is supplied or the event target is configured with a default prefix.

Parameters:

  • type String

    the type

  • [pre] String optional

    The prefix. Defaults to this._yuievt.config.prefix

Returns:

Array:

an array containing:

  • the detach category, if supplied,
  • the prefixed event type,
  • whether or not this is an after listener,
  • the supplied event type

previous

(
  • circular
)
Widget

Inherited from Widget: widget-child/js/Widget-Child.js:216

Returns the Widget's previous sibling.

Parameters:

  • circular Boolean

    Boolean indicating if the parent's last child should be returned if the child has no previous sibling.

Returns:

Widget:

Widget instance.

publish

(
  • type
  • opts
)
CustomEvent

Inherited from EventTarget: event-custom/js/event-target.js:503

Creates a new custom event of the specified type. If a custom event by that name already exists, it will not be re-created. In either case the custom event is returned.

Parameters:

  • type String

    the type, or name of the event

  • opts Object

    optional config params. Valid properties are:

    • [broadcast=false] Boolean optional

      whether or not the YUI instance and YUI global are notified when the event is fired.

    • [bubbles=true] Boolean optional

      Whether or not this event bubbles. Events can only bubble if emitFacade is true.

    • [context=this] Object optional

      the default execution context for the listeners.

    • [defaultFn] Function optional

      the default function to execute when this event fires if preventDefault was not called.

    • [emitFacade=false] Boolean optional

      whether or not this event emits a facade.

    • [prefix] String optional

      the prefix for this targets events, e.g., 'menu' in 'menu:click'.

    • [fireOnce=false] Boolean optional

      if an event is configured to fire once, new subscribers after the fire will be notified immediately.

    • [async=false] Boolean optional

      fireOnce event listeners will fire synchronously if the event has already fired unless async is true.

    • [preventable=true] Boolean optional

      whether or not preventDefault() has an effect.

    • [preventedFn] Function optional

      a function that is executed when preventDefault() is called.

    • [queuable=false] Boolean optional

      whether or not this event can be queued during bubbling.

    • [silent] Boolean optional

      if silent is true, debug messages are not provided for this event.

    • [stoppedFn] Function optional

      a function that is executed when stopPropagation is called.

    • [monitored] Boolean optional

      specifies whether or not this event should send notifications about when the event has been attached, detached, or published.

    • [type] String optional

      the event type (valid option if not provided as the first parameter to publish).

Returns:

CustomEvent:

the custom event

removeAttr

(
  • name
)

Inherited from AttributeExtras: attribute/js/AttributeExtras.js:90

Removes an attribute from the host object

Parameters:

  • name String

    The name of the attribute to be removed.

removeTarget

(
  • o
)
chainable

Inherited from EventTarget: event-custom/js/event-facade.js:533

Removes a bubble target

Parameters:

render

(
  • parentNode
)
final chainable

Inherited from Widget: widget/js/Widget.js:509

Establishes the initial DOM for the widget. Invoking this method will lead to the creating of all DOM elements for the widget (or the manipulation of existing DOM elements for the progressive enhancement use case).

This method should only be invoked once for an initialized widget.

It delegates to the widget specific renderer method to do the actual work.

Parameters:

  • parentNode Object | String

    Optional. The Node under which the Widget is to be rendered. This can be a Node instance or a CSS selector string.

    If the selector string returns more than one Node, the first node will be used as the parentNode. NOTE: This argument is required if both the boundingBox and contentBox are not currently in the document. If it's not provided, the Widget will be rendered to the body of the current document in this case.

reset

(
  • name
)
Object chainable

Inherited from AttributeExtras: attribute/js/AttributeExtras.js:100

Resets the attribute (or all attributes) to its initial value, as long as the attribute is not readOnly, or writeOnce.

Parameters:

  • name String

    Optional. The name of the attribute to reset. If omitted, all attributes are reset.

Returns:

Object:

A reference to the host object.

set

(
  • name
  • value
  • [opts]
)
Object chainable

Inherited from AttributeObservable but overwritten in attribute/js/AttributeCore.js:388

Sets the value of an attribute.

Parameters:

  • name String

    The name of the attribute. If the current value of the attribute is an Object, dot notation can be used to set the value of a property within the object (e.g. set("x.y.z", 5)).

  • value Any

    The value to set the attribute to.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

Returns:

Object:

A reference to the host object.

setAttrs

(
  • attrs
  • [opts]
)
Object chainable

Inherited from AttributeObservable but overwritten in attribute/js/AttributeCore.js:747

Sets multiple attribute values.

Parameters:

  • attrs Object

    An object with attributes name/value pairs.

  • [opts] Object optional

    Optional data providing the circumstances for the change.

Returns:

Object:

A reference to the host object.

show

() chainable

Inherited from Widget: widget/js/Widget.js:650

Shows the Widget by setting the "visible" attribute to "true".

subscribe

() deprecated

Inherited from EventTarget: event-custom/js/event-target.js:346

Deprecated: use on

subscribe to an event

toString

() String

Inherited from BaseCore but overwritten in widget/js/Widget.js:1122

Generic toString implementation for all widgets.

Returns:

String:

The default string value for the widget [ displays the NAME of the instance, and the unique id ]

unsubscribe

() deprecated

Inherited from EventTarget: event-custom/js/event-target.js:469

Deprecated: use detach

detach a listener

unsubscribeAll

(
  • type
)
deprecated

Inherited from EventTarget: event-custom/js/event-target.js:490

Deprecated: use detachAll

Removes all listeners from the specified event. If the event type is not specified, all listeners from all hosted custom events will be removed.

Parameters:

  • type String

    The type, or name of the event

Properties

BOUNDING_TEMPLATE

String

Inherited from Widget: widget/js/Widget.js:1160

Property defining the markup template for bounding box.

CONTENT_TEMPLATE

String

Inherited from Widget: widget/js/Widget.js:1150

Property defining the markup template for content box. If your Widget doesn't need the dual boundingBox/contentBox structure, set CONTENT_TEMPLATE to null, and contentBox and boundingBox will both point to the same Node.

DEF_PARENT_NODE

String | Node

Inherited from Widget: widget/js/Widget.js:1141

Default node to render the bounding box to. If not set, will default to the current document body.

DEF_UNIT

String

Inherited from Widget: widget/js/Widget.js:1133

Default unit to use for dimension values

name

String deprecated

Inherited from BaseCore: base/js/BaseCore.js:297

Deprecated: Use this.constructor.NAME

The string used to identify the class of this object.

UI_EVENTS

Object

Inherited from Widget: widget/js/WidgetUIEvents.js:52

Map of DOM events that should be fired as Custom Events by the Widget instance.

Attributes

background

Rect

Defined in charts/js/ChartLegend.js:769

Background for the legend.

Fires event backgroundChange

Fires when the value for the configuration attribute background is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

boundingBox

String | Node

Inherited from Widget: widget/js/Widget.js:175

The outermost DOM node for the Widget, used for sizing and positioning of a Widget as well as a containing element for any decorator elements used for skinning.

Fires event boundingBoxChange

Fires when the value for the configuration attribute boundingBox is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

chart

Chart

Defined in charts/js/ChartLegend.js:566

Reference to the Chart instance.

Fires event chartChange

Fires when the value for the configuration attribute chart is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

contentBox

String | Node

Inherited from Widget: widget/js/Widget.js:189

A DOM node that is a direct descendant of a Widget's bounding box that houses its content.

Fires event contentBoxChange

Fires when the value for the configuration attribute contentBox is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

destroyed

Boolean readonly

Inherited from BaseCore: base/js/BaseCore.js:212

Flag indicating whether or not this object has been through the destroy lifecycle phase.

Default: false

Fires event destroyedChange

Fires when the value for the configuration attribute destroyed is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

direction

String

Defined in charts/js/ChartLegend.js:580

Indicates the direction in relation of the legend's layout. The direction of the legend is determined by its position value.

Fires event directionChange

Fires when the value for the configuration attribute direction is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

disabled

Boolean

Inherited from Widget: widget/js/Widget.js:231

Boolean indicating if the Widget should be disabled. The disabled implementation is left to the specific classes extending widget.

Default: false

Fires event disabledChange

Fires when the value for the configuration attribute disabled is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

focused

Boolean readonly

Inherited from Widget: widget/js/Widget.js:218

Boolean indicating if the Widget, or one of its descendants, has focus.

Default: false

Fires event focusedChange

Fires when the value for the configuration attribute focused is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

height

Number

Inherited from Widget but overwritten in charts/js/ChartLegend.js:660

The height of the legend. Depending on the implementation of the ChartLegend, this value is readOnly. By default, the legend is included in the layout of the Chart that it references. Under this circumstance, height is always readOnly. When the legend is rendered in its own dom element, the readOnly status is determined by the direction of the legend. If the position is top or bottom or the direction is horizontal, height is readOnly. If the position is left or right or the direction is vertical, height can be explicitly set. If height is not explicitly set, the height will be determined by the width of the legend's parent element.

Fires event heightChange

Fires when the value for the configuration attribute height is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

id

String

Inherited from Widget: widget/js/Widget.js:149

Default: Generated using guid()

Fires event idChange

Fires when the value for the configuration attribute id is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

initialized

Boolean readonly

Inherited from BaseCore: base/js/BaseCore.js:198

Flag indicating whether or not this object has been through the init lifecycle phase.

Default: false

Fires event initializedChange

Fires when the value for the configuration attribute initialized is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

items

Array readonly

Defined in charts/js/ChartLegend.js:750

Array of items contained in the legend. Each item is an object containing the following properties:

node
Node containing text for the legend item.
marker
Shape for the legend item.

Fires event itemsChange

Fires when the value for the configuration attribute items is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

position

String

Defined in charts/js/ChartLegend.js:591

Indicates the position and direction of the legend. Possible values are left, top, right and bottom. Values of left and right values have a direction of vertical. Values of top and bottom values have a direction of horizontal.

Fires event positionChange

Fires when the value for the configuration attribute position is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

render

Boolean | Node

Inherited from Widget: widget/js/Widget.js:286

Whether or not to render the widget automatically after init, and optionally, to which parent node.

Fires event renderChange

Fires when the value for the configuration attribute render is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

rendered

Boolean readonly

Inherited from Widget: widget/js/Widget.js:161

Flag indicating whether or not this Widget has been through the render lifecycle phase.

Default: false

Fires event renderedChange

Fires when the value for the configuration attribute rendered is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

srcNode

String | Node

Inherited from Widget: widget/js/WidgetHTMLParser.js:58

The DOM node to parse for configuration values, passed to the Widget's HTML_PARSER definition

Fires event srcNodeChange

Fires when the value for the configuration attribute srcNode is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

strings

Object

Inherited from Widget: widget/js/Widget.js:274

Collection of strings used to label elements of the Widget's UI.

Default: null

Fires event stringsChange

Fires when the value for the configuration attribute strings is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

styles

Object

Defined in charts/js/ChartLegend.js:777

Properties used to display and style the ChartLegend. This attribute is inherited from Renderer. Below are the default values:

gap
Distance, in pixels, between the ChartLegend instance and the chart's content. When ChartLegend is rendered within a Chart instance this value is applied.
hAlign
Defines the horizontal alignment of the items in a ChartLegend rendered in a horizontal direction. This value is applied when the instance's position is set to top or bottom. This attribute can be set to left, center or right. The default value is center.
vAlign
Defines the vertical alignment of the items in a ChartLegend rendered in vertical direction. This value is applied when the instance's position is set to left or right. The attribute can be set to top, middle or bottom. The default value is middle.
item
Set of style properties applied to the items of the ChartLegend.
hSpacing
Horizontal distance, in pixels, between legend items.
vSpacing
Vertical distance, in pixels, between legend items.
label
Properties for the text of an item.
color
Color of the text. The default values is "#808080".
fontSize
Font size for the text. The default value is "85%".
marker
Properties for the item markers.
width
Specifies the width of the markers.
height
Specifies the height of the markers.
background
Properties for the ChartLegend background.
fill
Properties for the background fill.
color
Color for the fill. The default value is "#faf9f2".
border
Properties for the background border.
color
Color for the border. The default value is "#dad8c9".
weight
Weight of the border. The default values is 1.

Fires event stylesChange

Fires when the value for the configuration attribute styles is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

tabIndex

Number

Inherited from Widget: widget/js/Widget.js:202

Number (between -32767 to 32767) indicating the widget's position in the default tab flow. The value is used to set the "tabIndex" attribute on the widget's bounding box. Negative values allow the widget to receive DOM focus programmatically (by calling the focus method), while being removed from the default tab flow. A value of null removes the "tabIndex" attribute from the widget's bounding box.

Default: null

Fires event tabIndexChange

Fires when the value for the configuration attribute tabIndex is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

visible

Boolean

Inherited from Widget: widget/js/Widget.js:242

Boolean indicating whether or not the Widget is visible.

Default: TRUE

Fires event visibleChange

Fires when the value for the configuration attribute visible is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

width

Number

Inherited from Widget but overwritten in charts/js/ChartLegend.js:618

The width of the legend. Depending on the implementation of the ChartLegend, this value is readOnly. By default, the legend is included in the layout of the Chart that it references. Under this circumstance, width is always readOnly. When the legend is rendered in its own dom element, the readOnly status is determined by the direction of the legend. If the position is left or right or the direction is vertical, width is readOnly. If the position is top or bottom or the direction is horizontal, width can be explicitly set. If width is not explicitly set, the width will be determined by the width of the legend's parent element.

Fires event widthChange

Fires when the value for the configuration attribute width is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

x

Number readonly

Defined in charts/js/ChartLegend.js:704

Indicates the x position of legend.

Fires event xChange

Fires when the value for the configuration attribute x is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

y

Number readonly

Defined in charts/js/ChartLegend.js:727

Indicates the y position of legend.

Fires event yChange

Fires when the value for the configuration attribute y is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

Events

destroy

Inherited from BaseObservable: base/js/BaseObservable.js:163

Lifecycle event for the destroy phase, fired prior to destruction. Invoking the preventDefault method on the event object provided to subscribers will prevent destruction from proceeding.

Subscribers to the "after" moment of this event, will be notified after destruction is complete (and as a result cannot prevent destruction).

Event Payload:

init

Inherited from BaseObservable: base/js/BaseObservable.js:62

Lifecycle event for the init phase, fired prior to initialization. Invoking the preventDefault() method on the event object provided to subscribers will prevent initialization from occuring.

Subscribers to the "after" momemt of this event, will be notified after initialization of the object is complete (and therefore cannot prevent initialization).

Event Payload:

  • e EventFacade

    Event object, with a cfg property which refers to the configuration object passed to the constructor.

render

Inherited from Widget: widget/js/Widget.js:539

Lifecycle event for the render phase, fired prior to rendering the UI for the widget (prior to invoking the widget's renderer method).

Subscribers to the "on" moment of this event, will be notified before the widget is rendered.

Subscribers to the "after" moment of this event, will be notified after rendering is complete.

Event Payload:

widget:contentUpdate

Inherited from Widget: widget/js/Widget.js:397

Notification event, which widget implementations can fire, when they change the content of the widget. This event has no default behavior and cannot be prevented, so the "on" or "after" moments are effectively equivalent (with on listeners being invoked before after listeners).

Event Payload: