ImgLoadGroup Class
+ + + + +A group for images. A group can have one time limit and a series of triggers. Thus the images belonging to this group must share these constraints.
+Constructor
+ImgLoadGroup
+
+
+ ()
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ -
+
- Index + + +
- Methods + + +
- Properties + + +
- Attributes + + +
- Events + +
Item Index
+ + +Methods
+ +-
+
+
- + _addAttrs + + + + + +
- + _addLazyAttr + + + + + +
- + _aggregateAttrs + + + + + +
- + _attrCfgHash + + + + + +
- + _baseDestroy + + + + + +
- + _baseInit + + + + + +
- + _clearTriggers + + + + + +
- + _cloneDefaultValue + + + + + +
- + _defAttrChangeFn + + + + + +
- + _defDestroyFn + + + + + +
- + _defInitFn + + + + + +
- + _destroyHierarchy + + + + + +
- + _fetchByClass + + + + + +
- + _filterAdHocAttrs + + + + + +
- + _filterAttrCfgs + + + + + +
- + _fireAttrChange + + + + + +
- + _foldCheck + + + + + +
- + _getAttr + + + + + +
- + _getAttrCfg + + + + + +
- + _getAttrCfgs + + + + + +
- + _getAttrInitVal + + + + + +
- + _getAttrs + + + + + +
- + _getClasses + + + + + +
- + _getFetchTimeout + + + + + +
- + _getFullType + + + + + +
- + _getStateVal + + + + + +
- + _getType + + + + + +
- + _init + + + + + +
- + _initAttrHost + + + + + +
- + _initAttribute + + + + + +
- + _initAttrs + + + + + +
- + _initBase + + + + + +
- + _initHierarchy + + + + + +
- + _initHierarchyData + + + + + +
- + _isLazyAttr + + + + + +
- + _monitor + + + + + +
- + _normAttrVals + + + + + +
- + _onloadTasks + + + + + +
- + _parseType + + + + + +
- + _preInitEventCfg + + + + + +
- + _protectAttrs + + + + deprecated + + + +
- + _publish + + + + + +
- + _set + + + + + +
- + _setAttr + + + + + +
- + _setAttrs + + + + + +
- + _setAttrVal + + + + + +
- + _setFoldTriggers + + + + + +
- + _setStateVal + + + + + +
- + _updateNodeClassName + + + + + +
- + addAttr + + + + + +
- + addAttrs + + + + + +
- + addCustomTrigger + + + + + +
- + addTarget + + + + + +
- + addTrigger + + + + + +
- + after + + + + + +
- + attrAdded + + + + + +
- + before + + + + + +
- + bubble + + + + + +
- + destroy + + + + + +
- + detach + + + + + +
- + detachAll + + + + + +
- + fetch + + + + + +
- + fire + + + + + +
- + get + + + + + +
- + getAttrs + + + + + +
- + getEvent + + + + + +
- + getTargets + + + + + +
- + init + + + + + +
- + modifyAttr + + + + + +
- + on + + + + + +
- + once + + + + + +
- + onceAfter + + + + + +
- + parseType + + + + + +
- + publish + + + + + +
- + registerImage + + + + + +
- + removeAttr + + + + + +
- + removeTarget + + + + + +
- + reset + + + + + +
- + set + + + + + +
- + setAttrs + + + + + +
- + subscribe + + + + deprecated + + + +
- + toString + + + + + +
- + unsubscribe + + + + deprecated + + + +
- + unsubscribeAll + + + + deprecated + + + +
Properties
+ +-
+
+
- + _allowAdHocAttrs + + + + + +
- + _areFoldTriggersSet + + + + + +
- + _classImageEls + + + + + +
- + _className + + + + + +
- + _imgObjs + + + + + +
- + _maxKnownHLimit + + + + + +
- + _timeout + + + + + +
- + _triggers + + + + + +
- + name + + + + deprecated + + + +
Attributes
+ +-
+
+
- + className + + +
- + classNameAction + + +
- + destroyed + + +
- + foldDistance + + +
- + initialized + + +
- + name + + +
- + timeLimit + + +
Methods
+ + +_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+ 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.
+
+
+
_addLazyAttr
+
+
+ -
+
+
-
+
+
name+ +
+
+ -
+
+
[lazyCfg]+ +
+
+
Finishes initializing an attribute which has been lazily added.
+Parameters:
+ + +_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+ Array + + + + +++ + +An array of ATTRS definitions across classes in the hierarchy +(subclass first, Base last)
+
+
+
Returns:
+ +_attrCfgHash
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Utility method to define the attribute hash used to filter/whitelist property mixes for +this class for iteration performance reasons.
+_baseDestroy
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Internal destroy implementation for BaseCore
+_baseInit
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Internal initialization implementation for BaseCore
+_clearTriggers
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Clears the timeout and all triggers associated with the group.
+_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 + + + + ++ ++ + +
+
+
_defAttrChangeFn
+
+
+ -
+
+
-
+
+
e+ +
+
+
Default function for attribute change events.
+Parameters:
+ +-
+
+
-
+
+
e+ EventFacade + + + + +++ + +The event object for attribute change events.
+
+
+
_defDestroyFn
+
+
+ -
+
+
-
+
+
e+ +
+
+
Default destroy event handler
+Parameters:
+ +-
+
+
-
+
+
e+ EventFacade + + + + +++ + +Event object
+
+
+
_defInitFn
+
+
+ -
+
+
-
+
+
e+ +
+
+
Default init event handler
+Parameters:
+ +-
+
+
-
+
+
e+ EventFacade + + + + +++ + +Event object, with a cfg property which +refers to the configuration object passed to the constructor.
+
+
+
_destroyHierarchy
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Destroys the class hierarchy for this instance by invoking +the destructor method on the prototype of each class in the hierarchy.
+_fetchByClass
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Finds all elements in the DOM with the class name specified in the group. Removes the class from the element in order to let the style definitions trigger the image fetching.
+_filterAdHocAttrs
+
+
+ -
+
+
-
+
+
allAttrs+ +
+
+ -
+
+
userVals+ +
+
+
Parameters:
+ +-
+
+
-
+
+
allAttrs+ Object + + + + +++ + +The 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+ Object + + + + +++ + +The config object passed in by the user, from which adhoc attrs are to be filtered.
+
+
+
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:
+ +-
+
+
-
+
+
clazz+ Function + + + + +++ + +The class for which the desired attributes are required.
+
+
+ -
+
+
allCfgs+ Object + + + + +++ + +The 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.
+
+
+
Returns:
+ +_fireAttrChange
+
+
+ -
+
+
-
+
+
attrName+ +
+
+ -
+
+
subAttrName+ +
+
+ -
+
+
currVal+ +
+
+ -
+
+
newVal+ +
+
+ -
+
+
opts+ +
+
+ -
+
+
[cfg]+ +
+
+
Utility method to help setup the event payload and fire the attribute change event.
+Parameters:
+ +-
+
+
-
+
+
attrName+ String + + + + +++ + +The name of the attribute
+
+
+ -
+
+
subAttrName+ String + + + + +++ + +The full path of the property being changed, +if this is a sub-attribute value being change. Otherwise null.
+
+
+ -
+
+
currVal+ Any + + + + +++ + +The current value of the attribute
+
+
+ -
+
+
newVal+ Any + + + + +++ + +The new value of the attribute
+
+
+ -
+
+
opts+ Object + + + + +++ + +Any additional event data to mix into the attribute change event's event facade.
+
+
+ -
+
+
[cfg]+ Object + optional + + + + +++ + +The attribute config stored in State, if already available.
+
+
+
_foldCheck
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Checks the position of each image in the group. If any part of the image is within the specified distance (foldDistance) of the client viewport, the image is fetched immediately.
_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+ String + + + + +++ + +The name of the attribute.
+
+
+
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+ String + + + + +++ + +Optional. The attribute name. If not provided, the method will return the configuration for all attributes.
+
+
+
Returns:
+ +_getAttrCfgs
+
+
+ ()
+
+
+
+
+ Object
+
+
+
+
+
+
+ protected
+
+
+
+
+
+
+
+
+
+
+
+
+ Returns an aggregated set of attribute configurations, by traversing +the class hierarchy.
+Returns:
+ +_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:
+ +_getAttrs
+
+
+ -
+
+
-
+
+
attrs+ +
+
+
Implementation behind the public getAttrs method, to get multiple attribute values.
+Parameters:
+ +-
+
+
-
+
+
attrs+ Array | 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:
+ +_getClasses
+
+
+ ()
+
+
+
+
+ Function[]
+
+
+
+
+
+
+ protected
+
+
+
+
+
+
+
+
+
+
+
+
+ Returns the class hierarchy for this object, with BaseCore being the last class in the array.
+Returns:
+ +_getFetchTimeout
+
+
+ ()
+
+
+
+
+ Function
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Returns the group's fetch method, with the proper closure, for use with setTimeout.
Returns:
+ +fetch method
+
+ _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+ String + + + + +++ + +The short type to prefix
+
+
+
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:
+ +_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.
+_init
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Initialize all private members needed for the group.
+_initAttrHost
+
+
+ -
+
+
-
+
+
attrs+ +
+
+ -
+
+
values+ +
+
+ -
+
+
lazy+ +
+
+
Constructor logic for attributes. Initializes the host state, and sets up the inital attributes passed to the +constructor.
+Parameters:
+ +-
+
+
-
+
+
attrs+ Object + + + + +++ + +The 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+ Object + + + + +++ + +The 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+ Boolean + + + + +++ + +Whether or not to add attributes lazily (passed through to addAttrs).
+
+
+
_initAttribute
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Initializes AttributeCore
+_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+ Object + + + + +++ + +The 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+ Object + + + + +++ + +The 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+ Boolean + + + + +++ + +Whether or not to add attributes lazily (passed through to addAttrs).
+
+
+
_initBase
+
+
+ -
+
+
-
+
+
config+ +
+
+
Internal construction logic for BaseCore.
+Parameters:
+ +-
+
+
-
+
+
config+ Object + + + + +++ + +The constructor configuration object
+
+
+
_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+ Object + + + + +++ + +Object with configuration property name/value pairs
+
+
+
_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.
+_isLazyAttr
+
+
+ -
+
+
-
+
+
name+ +
+
+
Checks whether or not the attribute is one which has been +added lazily and still requires initialization.
+Parameters:
+ +-
+
+
-
+
+
name+ String + + + + +++ + +The name of the attribute
+
+
+
Returns:
+ +_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 | CustomEvent + + + + +++ + +The prefixed name of the event being monitored, or the CustomEvent object.
+
+
+ -
+
+
o+ Object + + + + +++ + +Information about the event interaction, such as + fire() args, subscription category, publish config
+
+
+
_normAttrVals
+
+
+ -
+
+
-
+
+
valueHash+ +
+
+
Utility method to normalize attribute values. The base implementation +simply merges the hash to protect the original.
+Parameters:
+ +-
+
+
-
+
+
valueHash+ Object + + + + +++ + +An object with attribute name/value pairs
+
+
+
Returns:
+ +_onloadTasks
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Performs necessary setup at domready time. +Initiates time limit for group; executes the fold check for the images.
+_parseType
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Returns an array with the detach key (if provided), +and the prefixed event name from _getType +Y.on('detachcategory| menu:click', fn)
+_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+ Object + + + + +++ + +The user configuration object
+
+
+
_protectAttrs
+
+
+ -
+
+
-
+
+
attrs+ +
+
+
Utility method to protect an attribute configuration +hash, by merging the entire object and the individual +attr config objects.
+Parameters:
+ +-
+
+
-
+
+
attrs+ Object + + + + +++ + +A hash of attribute to configuration object pairs.
+
+
+
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:
+ +-
+
+
-
+
+
fullType+ String + + + + +++ + +The prefixed type of the event to publish.
+
+
+ -
+
+
etOpts+ Object + + + + +++ + +The EventTarget specific configuration to mix into the published event.
+
+
+ -
+
+
ceOpts+ Object + + + + +++ + +The publish specific configuration to mix into the published event.
+
+
+
Returns:
+ +etOpts or ceOpts, this will
+be the default CustomEvent instance, and can be configured independently.
+
+ _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:
+ +-
+
+
-
+
+
name+ String + + + + +++ + +The name of the attribute.
+
+
+ -
+
+
value+ Any + + + + +++ + +The value to set the attribute to.
+
+
+ -
+
+
[opts]+ Object + optional + + + + +++ + +Optional data providing the circumstances for the change.
+
+
+ -
+
+
force+ Boolean + + + + +++ + +If true, allows the caller to set values for +readOnly or writeOnce attributes which have already been set.
+
+
+
Returns:
+ +_setAttrs
+
+
+ -
+
+
-
+
+
attrs+ +
+
+ -
+
+
[opts]+ +
+
+
Implementation behind the public setAttrs method, to set multiple attribute values.
+Parameters:
+ + +Returns:
+ +_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+ String + + + + +++ + +The attribute name.
+
+
+ -
+
+
subAttrName+ String + + + + +++ + +The sub-attribute name, if setting a sub-attribute property ("x.y.z").
+
+
+ -
+
+
prevVal+ Any + + + + +++ + +The currently stored value of the attribute.
+
+
+ -
+
+
newVal+ Any + + + + +++ + +The value which is going to be stored.
+
+
+ -
+
+
[opts]+ Object + optional + + + + +++ + +Optional data providing the circumstances for the change.
+
+
+ -
+
+
[attrCfg]+ Object + optional + + + + +++ + +Optional 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:
+ +_setFoldTriggers
+
+
+ ()
+
+
+
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+
+
+
+
+ Sets the window scroll and window resize triggers for any group that is fold-conditional (i.e., has a fold distance set).
+_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+ String + + + + +++ + +The name of the attribute
+
+
+ -
+
+
value+ Any + + + + +++ + +The value of the attribute
+
+
+
_updateNodeClassName
+
+
+ -
+
+
-
+
+
node+ +
+
+
Updates a given node, removing the ImageLoader class name. If the +node is an img and the classNameAction is "enhanced", then node +class name is removed and also the src attribute is set to the +image URL as well as clearing the style background image.
+Parameters:
+ +-
+
+
-
+
+
node+ Node + + + + +++ + +The node to act on.
+
+
+
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+ 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:
+ +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+ 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:
+ +addCustomTrigger
+
+
+ -
+
+
-
+
+
name+ +
+
+ -
+
+
obj+ +
+
+
Adds a custom event trigger to the group.
+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+ EventTarget + + + + +++ + +the target to add
+
+
+
addTrigger
+
+
+ -
+
+
-
+
+
obj+ +
+
+ -
+
+
type+ +
+
+
Adds a trigger to the group. Arguments are passed to Y.on.
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:
+ +-
+
+
-
+
+
type+ String + + + + +++ + +The name of the event
+
+
+ -
+
+
fn+ Function + + + + +++ + +The callback to execute in response to the event
+
+
+ -
+
+
[context]+ Object + optional + + + + +++ + +Override
+thisobject in callback
+
+ -
+
+
[arg*]+ Any + optional + + + + +++ + +0..n additional arguments to supply to the subscriber
+
+
+
Returns:
+ +attrAdded
+
+
+ -
+
+
-
+
+
name+ +
+
+
Checks if the given attribute has been added to the host
+Parameters:
+ +-
+
+
-
+
+
name+ String + + + + +++ + +The name of the attribute to check.
+
+
+
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:
+ +bubble
+
+
+ -
+
+
-
+
+
evt+ +
+
+
Propagate an event. Requires the event-custom-complex module.
+Parameters:
+ +-
+
+
-
+
+
evt+ CustomEvent + + + + +++ + +the custom event to propagate
+
+
+
Returns:
+ +destroy
+
+
+ ()
+
+
+
+
+ BaseCore
+
+
+
+
+
+
+
+
+
+
+
+
+ chainable
+
+
+
+
+
+
+ Destroy lifecycle method. Invokes destructors for the class hierarchy.
+Returns:
+ +detach
+
+
+ -
+
+
-
+
+
type+ +
+
+ -
+
+
fn+ +
+
+ -
+
+
context+ +
+
+
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:
+ +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+ String + + + + +++ + +The type, or name of the event
+
+
+
fetch
+
+
+ ()
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Displays the images in the group. +This method is called when a trigger fires or the time limit expires; it shouldn't be called externally, but is not private in the rare event that it needs to be called immediately.
+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 | 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:
+ +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+ 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:
+ +getAttrs
+
+
+ -
+
+
-
+
+
attrs+ +
+
+
Gets multiple attribute values.
+Parameters:
+ +-
+
+
-
+
+
attrs+ Array | 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:
+ +getEvent
+
+
+ -
+
+
-
+
+
type+ +
+
+ -
+
+
prefixed+ +
+
+
Returns the custom event of the provided type has been created, a +falsy value otherwise
+Parameters:
+ + +Returns:
+ +getTargets
+
+
+ ()
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Returns an array of bubble targets for this object.
+Returns:
+ +init
+
+
+ -
+
+
-
+
+
cfg+ +
+
+
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:
+ +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. +
+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:
+ +-
+
+
-
+
+
type+ String + + + + +++ + +The name of the event
+
+
+ -
+
+
fn+ Function + + + + +++ + +The callback to execute in response to the event
+
+
+ -
+
+
[context]+ Object + optional + + + + +++ + +Override
+thisobject in callback
+
+ -
+
+
[arg*]+ Any + optional + + + + +++ + +0..n additional arguments to supply to the subscriber
+
+
+
Returns:
+ +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:
+ +-
+
+
-
+
+
type+ String + + + + +++ + +The name of the event
+
+
+ -
+
+
fn+ Function + + + + +++ + +The callback to execute in response to the event
+
+
+ -
+
+
[context]+ Object + optional + + + + +++ + +Override
+thisobject in callback
+
+ -
+
+
[arg*]+ Any + optional + + + + +++ + +0..n additional arguments to supply to the subscriber
+
+
+
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:
+ +-
+
+
-
+
+
type+ String + + + + +++ + +The name of the event
+
+
+ -
+
+
fn+ Function + + + + +++ + +The callback to execute in response to the event
+
+
+ -
+
+
[context]+ Object + optional + + + + +++ + +Override
+thisobject in callback
+
+ -
+
+
[arg*]+ Any + optional + + + + +++ + +0..n additional arguments to supply to the subscriber
+
+
+
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.
+Parameters:
+ + +Returns:
+ +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+ String + + + + +++ + +the type, or name of the event
+
+
+ -
+
+
opts+ Object + + + + +++ + +optional 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:
+ +registerImage
+
+
+ -
+
+
-
+
+
+ +
+
+
Registers an image with the group.
+Arguments are passed through to a Y.ImgLoadImgObj constructor; see that class' attribute documentation for detailed information. "domId" is a required attribute.
Parameters:
+ +-
+
+
-
+
+
+ Object + + + + multiple + + +++ + +A configuration object literal with attribute name/value pairs (passed through to a
+Y.ImgLoadImgObjconstructor)
+
+
Returns:
+ +Y.ImgLoadImgObj that was registered
+
+ removeAttr
+
+
+ -
+
+
-
+
+
name+ +
+
+
Removes an attribute from the host object
+Parameters:
+ +-
+
+
-
+
+
name+ String + + + + +++ + +The name of the attribute to be removed.
+
+
+
removeTarget
+
+
+ -
+
+
-
+
+
o+ +
+
+
Removes a bubble target
+Parameters:
+ +-
+
+
-
+
+
o+ EventTarget + + + + +++ + +the target to remove
+
+
+
reset
+
+
+ -
+
+
-
+
+
name+ +
+
+
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:
+ +set
+
+
+ -
+
+
-
+
+
name+ +
+
+ -
+
+
value+ +
+
+ -
+
+
[opts]+ +
+
+
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:
+ +setAttrs
+
+
+ -
+
+
-
+
+
attrs+ +
+
+ -
+
+
[opts]+ +
+
+
Sets multiple attribute values.
+Parameters:
+ + +Returns:
+ +subscribe
+
+
+ ()
+
+
+
+
+
+ deprecated
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ subscribe to an event
+toString
+
+
+ ()
+
+
+
+
+ String
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Default toString implementation. Provides the constructor NAME +and the instance guid, if set.
+Returns:
+ +unsubscribe
+
+
+ ()
+
+
+
+
+
+ deprecated
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ detach a listener
+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+ String + + + + +++ + +The type, or name of the event
+
+
+
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)
+ + + + + +_areFoldTriggersSet
+ Boolean
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ Boolean tracking whether the window scroll and window resize triggers have been set if this is a fold group.
+_classImageEls
+ Array
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ DOM elements having the class name that is associated with this group.
+Elements are stored during the foldCheck function and reused later during any subsequent foldCheck calls - gives a slight performance improvement when the page fold is repeatedly checked.
_className
+ String
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ Keep the CSS class name in a member variable for ease and speed.
+_imgObjs
+ Object
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ Collection of images (Y.ImgLoadImgObj objects) registered with this group, keyed by DOM id.
_maxKnownHLimit
+ Int
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ The maximum pixel height of the document that has been made visible. +During fold checks, if the user scrolls up then there's no need to check for newly exposed images.
+_timeout
+ Object
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ Timeout object to keep a handle on the time limit.
+_triggers
+ Array
+
+
+
+
+ private
+
+
+
+
+
+
+
+
+ Collection of triggers for this group.
+Keeps track of each trigger's event handle, as returned from Y.on.
name
+ String
+
+
+ deprecated
+
+
+
+
+
+
+
+
+
+
+ The string used to identify the class of this object.
+Attributes
+ + +className
+ String
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Class name that will identify images belonging to the group. This class name will be removed from each element in order to fetch images.
+This class should have, in its CSS style definition, "background:none !important;".
Fires event classNameChange
+
+
+ Fires when the value for the configuration attribute className 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.+
+
+ -
+
classNameAction
+ String
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Determines how to act when className is used as the way to delay load images. The "default" action is to just +remove the class name. The "enhanced" action is to remove the class name and also set the src attribute if +the element is an img.
+Fires event classNameActionChange
+
+
+ Fires when the value for the configuration attribute classNameAction 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
+
+
+
+
+ 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.+
+
+ -
+
foldDistance
+ Number
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Distance below the fold for which images are loaded. Images are not loaded until they are at most this distance away from (or above) the fold. +This check is performed at page load (domready) and after any window scroll or window resize event (until all images are loaded).
+Fires event foldDistanceChange
+
+
+ Fires when the value for the configuration attribute foldDistance 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
+
+
+
+
+ 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.+
+
+ -
+
name
+ String
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Name for the group. Only used to identify the group in logging statements.
+Fires event nameChange
+
+
+ Fires when the value for the configuration attribute name 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.+
+
+ -
+
timeLimit
+ Number
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Time limit, in seconds, after which images are fetched regardless of trigger events.
+Fires event timeLimitChange
+
+
+ Fires when the value for the configuration attribute timeLimit 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
+
+
+
+
+
+
+
+
+
+
+
+
+ +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+ EventFacade + + + + +++ + +Event 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+ EventFacade + + + + +++ + +Event object, with a cfg property which +refers to the configuration object passed to the constructor.
+
+
+