CandlestickSeries Class
The CandlestickSeries class renders columns (candles) and lines (wicks) representing the open, high, low and close values for a chart.
Constructor
Item Index
Methods
- _getAttrInitVal
- destructor
- _getDefaultStyles
- drawSeries
- addListeners
- _xAxisChangeHandler
- _yAxisChangeHandler
- _xDataChangeHandler
- _yDataChangeHandler
- _updateAxisBase
- _checkForDataByKey
- validate
- setAreaData
- _copyData
- _setXMarkerPlane
- _setYMarkerPlane
- _getXCoords
- _getYCoords
- _getFirstValidIndex
- _getLastValidIndex
- draw
- render
- _setCanvas
- _getChart
- getTotalValues
- _handleVisibleChange
- _getDefaultColor
- _setStyles
- _mergeStyles
- _initAttrHost
- addAttr
- attrAdded
- get
- _isLazyAttr
- _addLazyAttr
- set
- _set
- _setAttr
- _getAttr
- _getStateVal
- _setStateVal
- _setAttrVal
- setAttrs
- _setAttrs
- getAttrs
- _getAttrs
- addAttrs
- _addAttrs
- _protectAttrs deprecated
- _normAttrVals
- _toggleVisible
- _initAttrs
- modifyAttr
- removeAttr
- reset
- _getAttrCfg
- _fireAttrChange
- _defAttrChangeFn
- _initBase
- _initAttribute
- init
- _baseInit
- destroy
- _baseDestroy
- _getClasses
- _getAttrCfgs
- _filterAttrCfgs
- _filterAdHocAttrs
- _initHierarchyData
- _attrCfgHash
- _cloneDefaultValue
- _aggregateAttrs
- _initHierarchy
- _destroyHierarchy
- toString
- _preInitEventCfg
- _defInitFn
- _defDestroyFn
- addTarget
- getTargets
- removeTarget
- bubble
- _getType
- _parseType
- once
- onceAfter
- parseType
- on
- subscribe deprecated
- detach
- unsubscribe deprecated
- detachAll
- unsubscribeAll deprecated
- publish
- _getFullType
- _publish
- _monitor
- fire
- getEvent
- after
- before
Properties
- _allowAdHocAttrs
- _bottomOrigin
- _defaultBorderColors
- _defaultFillColors
- _defaultLineColors
- _defaultPlaneOffset
- _defaultSliceColors
- _heightChangeHandle
- _leftOrigin
- _styles
- _stylesChangeHandle
- _visibleChangeHandle
- _widthChangeHandle
- _xAxisChangeHandle
- _xDataReadyHandle
- _xDataUpdateHandle
- _xDisplayName
- _yAxisChangeHandle
- _yDataReadyHandle
- _yDataUpdateHandle
- _yDisplayName
- GUID
- name deprecated
Attributes
- categoryDisplayName
- chart
- destroyed
- direction
- downcandle
- graph
- graphic
- graphOrder
- groupMarkers
- height
- initialized
- ohlc
- order
- rendered
- seriesTypeCollection
- styles
- type
- upcandle
- valueDisplayName
- visible
- wick
- xAxis
- xcoords
- xData
- xDisplayName
- xKey
- xMarkerPlane
- xMarkerPlaneOffset
- yAxis
- ycoords
- yData
- yDisplayName
- yKey
- yMarkerPlane
- yMarkerPlaneOffset
Methods
_getAttrInitVal
-
attr
-
cfg
-
initValues
Returns the initial value of the given attribute from either the default configuration provided, or the over-ridden value if it exists in the set of initValues provided and the attribute is not read-only.
Parameters:
Returns:
-
xcoords
-
opencoords
-
highcoords
-
lowcoords
-
closecoords
-
len
-
width
-
halfwidth
-
styles
Draws markers for an Candlestick series.
Parameters:
-
xcoords
ArrayThe xcoordinates to be plotted.
-
opencoords
ArrayThe coordinates representing the open values.
-
highcoords
ArrayThe coordinates representing the high values.
-
lowcoords
ArrayThe coordinates representing the low values.
-
closecoords
ArrayThe coordinates representing the close values.
-
len
NumberThe number of x coordinates to plot.
-
width
NumberThe width of each candlestick marker.
-
halfwidth
NumberHalf the width of each candlestick marker.
-
styles
ObjectThe styles for the series.
destructor
()
protected
Destructor implementation for the CartesianSeries class. Calls destroy on all Graphic instances.
_getDefaultStyles
()
private
Gets the default value for the styles
attribute. Overrides
base implementation.
Returns:
drawSeries
()
protected
Draws the series.
addListeners
()
private
Adds event listeners.
_xAxisChangeHandler
-
e
Event handler for the xAxisChange event.
Parameters:
-
e
ObjectEvent object.
_yAxisChangeHandler
-
e
Event handler the yAxisChange event.
Parameters:
-
e
ObjectEvent object.
_xDataChangeHandler
-
event
Event handler for xDataChange event.
Parameters:
-
event
ObjectEvent object.
_yDataChangeHandler
-
event
Event handler for yDataChange event.
Parameters:
-
event
ObjectEvent object.
_updateAxisBase
()
private
Checks to ensure that both xAxis and yAxis data are available. If so, set the xData
and yData
attributes
and return true
. Otherwise, return false
.
Returns:
_checkForDataByKey
-
obj
-
keys
Checks to see if all keys of a data object exist and contain data.
Returns:
validate
()
private
Draws the series is the xAxis and yAxis data are both available.
setAreaData
()
protected
Calculates the coordinates for the series.
_copyData
-
val
Used to cache xData and yData in the setAreaData method. Returns a copy of an array if an array is received as the param and returns an object literal of array copies if an object literal is received as the param.
Returns:
_setXMarkerPlane
-
coords
-
dataLength
Sets the marker plane for the series when the coords argument is an array. If the coords argument is an object literal no marker plane is set.
_setYMarkerPlane
-
coords
-
dataLength
Sets the marker plane for the series when the coords argument is an array. If the coords argument is an object literal no marker plane is set.
_getXCoords
-
xData
-
xMin
-
dataWidth
-
xScaleFactor
-
xOffset
-
dataLength
-
leftPadding
Gets the x-coordinates for a series. Used by the setAreaData method. Returns an array when an array is received as the first argument. Returns an object literal when an object literal is received as the first argument.
Parameters:
-
xData
Array | ObjectAn array of data values mapped to the x axis or an object literal containing key values pairs of data values mapped to the x axis.
-
xMin
NumberThe minimum value of the x axis.
-
dataWidth
NumberThe width used to calculate the x-coordinates.
-
xScaleFactor
NumberThe ratio used to calculate x-coordinates.
-
xOffset
NumberThe distance of the first and last x-coordinate from the beginning and end of the x-axis.
-
dataLength
NumberThe number of data points in the arrays.
-
leftPadding
NumberThe left padding of the series.
Returns:
_getYCoords
-
yData
-
yMin
-
dataHeight
-
yScaleFactor
-
yOffset
-
dataLength
-
topPadding
Gets the y-coordinates for a series. Used by the setAreaData method. Returns an array when an array is received as the first argument. Returns an object literal when an object literal is received as the first argument.
Parameters:
-
yData
Array | ObjectAn array of data values mapped to the y axis or an object literal containing key values pairs of data values mapped to the y axis.
-
yMin
NumberThe minimum value of the y axis.
-
dataHeight
NumberThe height used to calculate the y-coordinates.
-
yScaleFactor
NumberThe ratio used to calculate y-coordinates.
-
yOffset
NumberThe distance of the first and last y-coordinate from the beginning and end of the y-axis.
-
dataLength
NumberThe number of data points in the arrays.
-
topPadding
NumberThe top padding of the series.
Returns:
_getFirstValidIndex
-
coords
Finds the first valid index of an array coordinates.
Parameters:
-
coords
ArrayAn array of x or y coordinates.
Returns:
_getLastValidIndex
-
coords
Finds the last valid index of an array coordinates.
Parameters:
-
coords
ArrayAn array of x or y coordinates.
Returns:
draw
()
protected
Draws the series.
render
()
private
_setCanvas
()
protected
Creates a Graphic
instance.
_getChart
()
Object
private
Returns a reference to the parent container to which all chart elements are contained.
When the series is bound to a Chart
instance, the Chart
instance is the reference.
If nothing is set as the chart
attribute, the _getChart
method will return a reference
to the graphic
attribute.
Returns:
getTotalValues
()
Returns the sum of all values for the series.
Returns:
_handleVisibleChange
-
e
Shows/hides contents of the series.
Parameters:
-
e
ObjectEvent object.
_getDefaultColor
-
index
-
type
Parses a color based on a series order and type.
Parameters:
Returns:
_setStyles
-
newStyles
Method used by styles
setter.
Parameters:
-
newStyles
ObjectHash of properties to update.
Returns:
_mergeStyles
-
a
-
b
Merges to object literals so that only specified properties are overwritten.
Returns:
_initAttrHost
-
attrs
-
values
-
lazy
Constructor logic for attributes. Initializes the host state, and sets up the inital attributes passed to the constructor.
Parameters:
-
attrs
ObjectThe attributes to add during construction (passed through to addAttrs). These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.
-
values
ObjectThe initial attribute values to apply (passed through to addAttrs). These are not merged/cloned. The caller is responsible for isolating user provided values if required.
-
lazy
BooleanWhether or not to add attributes lazily (passed through to addAttrs).
addAttr
-
name
-
config
-
lazy
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
StringThe name of the attribute.
-
config
ObjectAn 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:
attrAdded
-
name
Checks if the given attribute has been added to the host
Parameters:
-
name
StringThe name of the attribute to check.
Returns:
get
-
name
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
StringThe 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:
_isLazyAttr
-
name
Checks whether or not the attribute is one which has been added lazily and still requires initialization.
Parameters:
-
name
StringThe name of the attribute
Returns:
_addLazyAttr
-
name
-
[lazyCfg]
Finishes initializing an attribute which has been lazily added.
set
-
name
-
value
-
[opts]
Sets the value of an attribute.
Parameters:
-
name
StringThe 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
AnyThe value to set the attribute to.
-
[opts]
Object optionalOptional data providing the circumstances for the change.
Returns:
_set
-
name
-
val
-
[opts]
Allows setting of readOnly/writeOnce attributes. See set for argument details.
Parameters:
Returns:
_setAttr
-
name
-
value
-
[opts]
-
force
Provides the common implementation for the public set and protected _set methods.
See set for argument details.
Parameters:
Returns:
_getAttr
-
name
Provides the common implementation for the public get method, allowing Attribute hosts to over-ride either method.
See get for argument details.
Parameters:
-
name
StringThe name of the attribute.
Returns:
_getStateVal
-
name
-
[cfg]
Gets the stored value for the attribute, from either the internal state object, or the state proxy if it exits
Parameters:
Returns:
_setStateVal
-
name
-
value
Sets the stored value for the attribute, in either the internal state object, or the state proxy if it exits
Parameters:
-
name
StringThe name of the attribute
-
value
AnyThe value of the attribute
_setAttrVal
-
attrName
-
subAttrName
-
prevVal
-
newVal
-
[opts]
-
[attrCfg]
Updates the stored value of the attribute in the privately held State object, if validation and setter passes.
Parameters:
-
attrName
StringThe attribute name.
-
subAttrName
StringThe sub-attribute name, if setting a sub-attribute property ("x.y.z").
-
prevVal
AnyThe currently stored value of the attribute.
-
newVal
AnyThe value which is going to be stored.
-
[opts]
Object optionalOptional data providing the circumstances for the change.
-
[attrCfg]
Object optionalOptional config hash for the attribute. This is added for performance along the critical path, where the calling method has already obtained the config from state.
Returns:
setAttrs
-
attrs
-
[opts]
Sets multiple attribute values.
Parameters:
Returns:
_setAttrs
-
attrs
-
[opts]
Implementation behind the public setAttrs method, to set multiple attribute values.
Parameters:
Returns:
getAttrs
-
attrs
Gets multiple attribute values.
Parameters:
-
attrs
Array | booleanOptional. 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:
_getAttrs
-
attrs
Implementation behind the public getAttrs method, to get multiple attribute values.
Parameters:
-
attrs
Array | booleanOptional. 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:
addAttrs
-
cfgs
-
values
-
lazy
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
ObjectAn object with attribute name/configuration pairs.
-
values
ObjectAn 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
BooleanWhether 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:
_addAttrs
-
cfgs
-
values
-
lazy
Implementation behind the public addAttrs method.
This method is invoked directly by get if it encounters a scenario in which an attribute's valueFn attempts to obtain the value an attribute in the same group of attributes, which has not yet been added (on demand initialization).
Parameters:
-
cfgs
ObjectAn object with attribute name/configuration pairs.
-
values
ObjectAn 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
BooleanWhether 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.
_protectAttrs
-
attrs
Utility method to protect an attribute configuration hash, by merging the entire object and the individual attr config objects.
Parameters:
-
attrs
ObjectA hash of attribute to configuration object pairs.
Returns:
_normAttrVals
-
valueHash
Utility method to normalize attribute values. The base implementation simply merges the hash to protect the original.
Parameters:
-
valueHash
ObjectAn object with attribute name/value pairs
Returns:
_toggleVisible
-
visible
Toggles visibility
Parameters:
-
visible
Booleanindicates visibilitye
_initAttrs
-
attrs
-
values
-
lazy
Utility method to set up initial attributes defined during construction, either through the constructor.ATTRS property, or explicitly passed in.
Parameters:
-
attrs
ObjectThe attributes to add during construction (passed through to addAttrs). These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.
-
values
ObjectThe initial attribute values to apply (passed through to addAttrs). These are not merged/cloned. The caller is responsible for isolating user provided values if required.
-
lazy
BooleanWhether or not to add attributes lazily (passed through to addAttrs).
modifyAttr
-
name
-
config
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.
removeAttr
-
name
Removes an attribute from the host object
Parameters:
-
name
StringThe name of the attribute to be removed.
reset
-
name
Resets the attribute (or all attributes) to its initial value, as long as the attribute is not readOnly, or writeOnce.
Parameters:
-
name
StringOptional. The name of the attribute to reset. If omitted, all attributes are reset.
Returns:
_getAttrCfg
-
name
Returns an object with the configuration properties (and value) for the given attribute. If attrName is not provided, returns the configuration properties for all attributes.
Parameters:
-
name
StringOptional. The attribute name. If not provided, the method will return the configuration for all attributes.
Returns:
_fireAttrChange
-
attrName
-
subAttrName
-
currVal
-
newVal
-
opts
-
[cfg]
Utility method to help setup the event payload and fire the attribute change event.
Parameters:
-
attrName
StringThe name of the attribute
-
subAttrName
StringThe full path of the property being changed, if this is a sub-attribute value being change. Otherwise null.
-
currVal
AnyThe current value of the attribute
-
newVal
AnyThe new value of the attribute
-
opts
ObjectAny additional event data to mix into the attribute change event's event facade.
-
[cfg]
Object optionalThe attribute config stored in State, if already available.
_defAttrChangeFn
-
e
Default function for attribute change events.
Parameters:
-
e
EventFacadeThe event object for attribute change events.
_initBase
-
config
Internal construction logic for BaseCore.
Parameters:
-
config
ObjectThe constructor configuration object
_initAttribute
()
private
Initializes AttributeCore
init
-
cfg
Init lifecycle method, invoked during construction. Sets up attributes and invokes initializers for the class hierarchy.
Parameters:
-
cfg
ObjectObject with configuration property name/value pairs
Returns:
_baseInit
()
private
Internal initialization implementation for BaseCore
destroy
()
BaseCore
chainable
Destroy lifecycle method. Invokes destructors for the class hierarchy.
Returns:
_baseDestroy
()
private
Internal destroy implementation for BaseCore
_getClasses
()
Function[]
protected
Returns the class hierarchy for this object, with BaseCore being the last class in the array.
Returns:
_getAttrCfgs
()
Object
protected
Returns an aggregated set of attribute configurations, by traversing the class hierarchy.
Returns:
_filterAttrCfgs
-
clazz
-
allCfgs
A helper method used when processing ATTRS across the class hierarchy during initialization. Returns a disposable object with the attributes defined for the provided class, extracted from the set of all attributes passed in.
Parameters:
Returns:
_filterAdHocAttrs
-
allAttrs
-
userVals
Parameters:
-
allAttrs
ObjectThe set of all attribute configurations for this instance. Attributes will be removed from this set, if they belong to the filtered class, so that by the time all classes are processed, allCfgs will be empty.
-
userVals
ObjectThe config object passed in by the user, from which adhoc attrs are to be filtered.
Returns:
_initHierarchyData
()
private
A helper method used by _getClasses and _getAttrCfgs, which determines both the array of classes and aggregate set of attribute configurations across the class hierarchy for the instance.
_attrCfgHash
()
private
Utility method to define the attribute hash used to filter/whitelist property mixes for this class for iteration performance reasons.
_cloneDefaultValue
-
cfg
This method assumes that the value has already been checked to be an object. Since it's on a critical path, we don't want to re-do the check.
Parameters:
-
cfg
Object
_aggregateAttrs
-
allAttrs
A helper method, used by _initHierarchyData to aggregate attribute configuration across the instances class hierarchy.
The method will protect the attribute configuration value to protect the statically defined default value in ATTRS if required (if the value is an object literal, array or the attribute configuration has cloneDefaultValue set to shallow or deep).
Parameters:
-
allAttrs
ArrayAn array of ATTRS definitions across classes in the hierarchy (subclass first, Base last)
Returns:
_initHierarchy
-
userVals
Initializes the class hierarchy for the instance, which includes initializing attributes for each class defined in the class's static ATTRS property and invoking the initializer method on the prototype of each class in the hierarchy.
Parameters:
-
userVals
ObjectObject with configuration property name/value pairs
_destroyHierarchy
()
private
Destroys the class hierarchy for this instance by invoking the destructor method on the prototype of each class in the hierarchy.
toString
()
String
Default toString implementation. Provides the constructor NAME and the instance guid, if set.
Returns:
_preInitEventCfg
-
config
Handles the special on, after and target properties which allow the user to easily configure on and after listeners as well as bubble targets during construction, prior to init.
Parameters:
-
config
ObjectThe user configuration object
_defInitFn
-
e
Default init event handler
Parameters:
-
e
EventFacadeEvent object, with a cfg property which refers to the configuration object passed to the constructor.
addTarget
-
o
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:
-
o
EventTargetthe target to add
getTargets
()
Returns an array of bubble targets for this object.
Returns:
bubble
-
evt
Propagate an event. Requires the event-custom-complex module.
Parameters:
-
evt
CustomEventthe custom event to propagate
Returns:
_getType
()
private
If the instance has a prefix attribute and the event type is not prefixed, the instance prefix is applied to the supplied type.
_parseType
()
private
Returns an array with the detach key (if provided), and the prefixed event name from _getType Y.on('detachcategory| menu:click', fn)
once
-
type
-
fn
-
[context]
-
[arg*]
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:
Returns:
onceAfter
-
type
-
fn
-
[context]
-
[arg*]
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:
Returns:
parseType
-
type
-
[pre=this._yuievt.config.prefix]
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.
Returns:
on
-
type
-
fn
-
[context]
-
[arg*]
Subscribe a callback function to a custom event fired by this object or from an object that bubbles its events to this object.
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, or pass an array of event names as the first argument to subscribe to all listed events with the same callback.
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:
Returns:
subscribe
()
deprecated
subscribe to an event
detach
-
type
-
fn
-
context
Detach one or more listeners the from the specified event
Parameters:
-
type
String | ObjectEither 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
FunctionThe subscribed function to unsubscribe, if not supplied, all subscribers will be removed.
-
context
ObjectThe 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:
unsubscribe
()
deprecated
detach a listener
detachAll
-
type
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
StringThe type, or name of the event
unsubscribeAll
-
type
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
StringThe type, or name of the event
publish
-
type
-
opts
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
Stringthe type, or name of the event
-
opts
Objectoptional config params. Valid properties are:
- 'broadcast': whether or not the YUI instance and YUI global are notified when the event is fired (false)
- 'bubbles': whether or not this event bubbles (true) Events can only bubble if emitFacade is true.
- 'context': the default execution context for the listeners (this)
- 'defaultFn': the default function to execute when this event fires if preventDefault was not called
- 'emitFacade': whether or not this event emits a facade (false)
- 'prefix': the prefix for this targets events, e.g., 'menu' in 'menu:click'
- 'fireOnce': if an event is configured to fire once, new subscribers after the fire will be notified immediately.
- 'async': fireOnce event listeners will fire synchronously if the event has already fired unless async is true.
- 'preventable': whether or not preventDefault() has an effect (true)
- 'preventedFn': a function that is executed when preventDefault is called
- 'queuable': whether or not this event can be queued during bubbling (false)
- 'silent': if silent is true, debug messages are not provided for this event.
- 'stoppedFn': a function that is executed when stopPropagation is called
- 'monitored': specifies whether or not this event should send notifications about when the event has been attached, detached, or published.
- 'type': the event type (valid option if not provided as the first parameter to publish)
Returns:
_getFullType
-
type
Returns the fully qualified type, given a short type string. That is, returns "foo:bar" when given "bar" if "foo" is the configured prefix.
NOTE: This method, unlike _getType, does no checking of the value passed in, and is designed to be used with the low level _publish() method, for critical path implementations which need to fast-track publish for performance reasons.
Parameters:
-
type
StringThe short type to prefix
Returns:
_publish
-
fullType
-
etOpts
-
ceOpts
The low level event publish implementation. It expects all the massaging to have been done
outside of this method. e.g. the type
to fullType
conversion. It's designed to be a fast
path publish, which can be used by critical code paths to improve performance.
Parameters:
Returns:
etOpts
or ceOpts
, this will
be the default CustomEvent
instance, and can be configured independently.
_monitor
-
what
-
eventType
-
o
This is the entry point for the event monitoring system. You can monitor 'attach', 'detach', 'fire', and 'publish'. When configured, these events generate an event. click -> clickattach, clickdetach, click_publish -- these can be subscribed to like other events to monitor the event system. Inividual published events can have monitoring turned on or off (publish can't be turned off before it it published) by setting the events 'monitor' config.
Parameters:
-
what
String'attach', 'detach', 'fire', or 'publish'
-
eventType
String | CustomEventThe prefixed name of the event being monitored, or the CustomEvent object.
-
o
ObjectInformation about the event interaction, such as fire() args, subscription category, publish config
fire
-
type
-
arguments
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.
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.
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.
Parameters:
-
type
String | ObjectThe 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:
getEvent
-
type
-
prefixed
Returns the custom event of the provided type has been created, a falsy value otherwise
Parameters:
Returns:
after
-
type
-
fn
-
[context]
-
[arg*]
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:
Returns:
before
()
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:
Properties
_allowAdHocAttrs
Boolean
protected
This property controls whether or not instances of this class should allow users to add ad-hoc attributes through the constructor configuration hash.
AdHoc attributes are attributes which are not defined by the class, and are not handled by the MyClass.NONATTRS_CFG
Default: undefined (false)
_defaultBorderColors
Array
protected
Collection of default colors used for marker borders in a series when not specified by user.
_defaultFillColors
Array
protected
Collection of default colors used for marker fills in a series when not specified by user.
_defaultLineColors
Array
protected
Collection of default colors used for lines in a series when not specified by user.
_defaultPlaneOffset
Number
private
Default value for plane offsets when the parent chart's interactiveType
is planar
.
_defaultSliceColors
Array
protected
Collection of default colors used for area fills, histogram fills and pie fills in a series when not specified by user.
Attributes
categoryDisplayName
String
readonly
Name used for for displaying category data
Fires event categoryDisplayNameChange
Fires when the value for the configuration attribute categoryDisplayName
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
chart
ChartBase
Reference to the Chart
application. If no Chart
application is present,
a reference to the Graphic
instance that the series is drawn into will be returned.
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
destroyed
Boolean
readonly
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
direction
String
Direction of the series
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
downcandle
Path
Reference to the candlestick used when the open value is higher than the close value.
Fires event downcandleChange
Fires when the value for the configuration attribute downcandle
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
graph
Graph
Reference to the Graph
in which the series is drawn into.
Fires event graphChange
Fires when the value for the configuration attribute graph
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
graphic
Graphic
The graphic in which drawings will be rendered.
Fires event graphicChange
Fires when the value for the configuration attribute graphic
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
graphOrder
Number
Order of the instance
Fires event graphOrderChange
Fires when the value for the configuration attribute graphOrder
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
groupMarkers
Boolean
Indicates whether or not markers for a series will be grouped and rendered in a single complex shape instance.
Fires event groupMarkersChange
Fires when the value for the configuration attribute groupMarkers
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
height
Number
Returns the height of the parent graph
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
initialized
Boolean
readonly
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
ohlc
Object
Values to be used for open, high, low and close keys.
Fires event ohlcChange
Fires when the value for the configuration attribute ohlc
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
order
Number
Order of this instance of this type
.
Fires event orderChange
Fires when the value for the configuration attribute order
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
rendered
Boolean
Indicates whether the Series has been through its initial set up.
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
seriesTypeCollection
Array
An array of all series of the same type used within a chart application.
Fires event seriesTypeCollectionChange
Fires when the value for the configuration attribute seriesTypeCollection
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
styles
Object
Style properties used for drawing candles and wicks. This attribute is inherited from RangeSeries
. Below are the default values:
- upcandle
- Properties for a candle representing a period that closes higher than it opens.
- fill
- A hash containing the following values:
- color
- Color of the fill. The default value is "#00aa00".
- alpha
- Number from 0 to 1 indicating the opacity of the marker fill. The default value is 1.
- border
- A hash containing the following values:
- color
- Color of the border. The default value is "#000000".
- alpha
- Number from 0 to 1 indicating the opacity of the marker border. The default value is 1.
- weight
- Number indicating the width of the border. The default value is 0.
- fill
- A hash containing the following values:
- color
- Color of the fill. The default value is "#aa0000".
- alpha
- Number from 0 to 1 indicating the opacity of the marker fill. The default value is 1.
- color
- Color of the border. The default value is "#000000".
- alpha
- Number from 0 to 1 indicating the opacity of the marker border. The default value is 1.
- weight
- Number indicating the width of the border. The default value is 0.
- color
- The color of the wick. The default value is "#000000".
- weight
- The weight of the wick. The default value is 1.
- alpha
- Number from 0 to 1 indicating the opacity of the wick. The default value 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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
type
String
readonly
Read-only attribute indicating the type of series.
Default: candlestick
Fires event typeChange
Fires when the value for the configuration attribute type
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
upcandle
Path
Reference to the candlestick used when the close value is higher than the open value.
Fires event upcandleChange
Fires when the value for the configuration attribute upcandle
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
valueDisplayName
String
readonly
Name used for for displaying value data
Fires event valueDisplayNameChange
Fires when the value for the configuration attribute valueDisplayName
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
visible
Boolean
Indicates whether to show the series
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
wick
Path
Reference to the line drawn between the high and low values.
Fires event wickChange
Fires when the value for the configuration attribute wick
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xAxis
Axis
Reference to the Axis
instance used for assigning
x-values to the graph.
Fires event xAxisChange
Fires when the value for the configuration attribute xAxis
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xcoords
Array
x coordinates for the series.
Fires event xcoordsChange
Fires when the value for the configuration attribute xcoords
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xData
Array
Array of x values for the series.
Fires event xDataChange
Fires when the value for the configuration attribute xData
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xDisplayName
String
Name used for for displaying data related to the x-coordinate.
Fires event xDisplayNameChange
Fires when the value for the configuration attribute xDisplayName
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xKey
String
Indicates which array to from the hash of value arrays in
the x-axis Axis
instance.
Fires event xKeyChange
Fires when the value for the configuration attribute xKey
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xMarkerPlane
Array
Collection of area maps along the xAxis. Used to determine mouseover for multiple series.
Fires event xMarkerPlaneChange
Fires when the value for the configuration attribute xMarkerPlane
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
xMarkerPlaneOffset
Number
Distance from a data coordinate to the left/right for setting a hotspot.
Fires event xMarkerPlaneOffsetChange
Fires when the value for the configuration attribute xMarkerPlaneOffset
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yAxis
Axis
Reference to the Axis
instance used for assigning
y-values to the graph.
Fires event yAxisChange
Fires when the value for the configuration attribute yAxis
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
ycoords
Array
y coordinates for the series
Fires event ycoordsChange
Fires when the value for the configuration attribute ycoords
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yData
Array
Array of y values for the series.
Fires event yDataChange
Fires when the value for the configuration attribute yData
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yDisplayName
String
Name used for for displaying data related to the y-coordinate.
Fires event yDisplayNameChange
Fires when the value for the configuration attribute yDisplayName
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yKey
String
Indicates which array to from the hash of value arrays in
the y-axis Axis
instance.
Fires event yKeyChange
Fires when the value for the configuration attribute yKey
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yMarkerPlane
Array
Collection of area maps along the yAxis. Used to determine mouseover for multiple series.
Fires event yMarkerPlaneChange
Fires when the value for the configuration attribute yMarkerPlane
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
yMarkerPlaneOffset
Number
Distance from a data coordinate to the top/bottom for setting a hotspot.
Fires event yMarkerPlaneOffsetChange
Fires when the value for the configuration attribute yMarkerPlaneOffset
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
EventFacadeAn Event Facade object with the following attribute-specific properties added:
Events
destroy
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:
-
e
EventFacadeEvent object
init
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
EventFacadeEvent object, with a cfg property which refers to the configuration object passed to the constructor.