Class: Observer

Help4.widget.tour.Observer(view)

Element event observation for tour playback

Constructor

new Observer(view)

Parameters:
Name Type Description
view Help4.widget.tour.View
Properties:
Name Type Description
_view Help4.widget.tour.View
_observed Object
_onElementEvent function
_blocked boolean
Source:

Extends

Methods

(protected) ____defineStaticProperties()

auto define all to be cleaned properties
Overrides:
Source:
Throws:
Error

(protected) ____getClassConfig() → {Help4.jscore.Base.Params}

Overrides:
Source:
Returns:
Type
Help4.jscore.Base.Params

(protected) ____mergeDerivedParam(level0, type, value)

Parameters:
Name Type Description
level0 Help4.jscore.Base.Params
type string
value *
Overrides:
Source:
Throws:
Error

(protected) ____mergeDerivedParams(level0, level1)

Parameters:
Name Type Description
level0 Help4.jscore.Base.Params
level1 Help4.jscore.Base.Params
Overrides:
Source:
Throws:
Error

(protected) ____resolveDerivedParams(classConfig)

Parameters:
Name Type Description
classConfig Help4.jscore.Base.Params
Overrides:
Source:

(protected) _destroyControl(…keys)

destroys class properties
Parameters:
Name Type Attributes Description
keys string <repeatable>
Overrides:
Source:

(protected) _fireEvent(event) → {Help4.jscore.Base}

fires an event that can be observed from outside
Parameters:
Name Type Description
event Object the event to be fired
Overrides:
Source:
Returns:
Type
Help4.jscore.Base

(async, protected) _fireEvent2(event) → {Promise.<Array.<Help4.EmbeddedEvent.EventResponse>>}

fires an event that can be observed from outside
Parameters:
Name Type Description
event Object the event to be fired
Overrides:
Source:
Returns:
Type
Promise.<Array.<Help4.EmbeddedEvent.EventResponse>>

(protected) _fireEventSync(event) → {Array.<Help4.EmbeddedEvent.EventResponse>}

fires an event that can be observed from outside
Parameters:
Name Type Description
event Object the event to be fired
Overrides:
Source:
Returns:
Type
Array.<Help4.EmbeddedEvent.EventResponse>

addListener(eventType, listener) → {Help4.jscore.Base}

add an event listener
Parameters:
Name Type Description
eventType string | Array.<string> event type to be observed
listener Help4.EmbeddedEvent.Listener the callback function
Overrides:
Source:
Returns:
Type
Help4.jscore.Base

addListenerSync(eventType, listener) → {Help4.jscore.Base}

add an event listener
Parameters:
Name Type Description
eventType string | Array.<string> event type to be observed
listener Help4.EmbeddedEvent.Listener the callback function
Overrides:
Source:
Returns:
Type
Help4.jscore.Base

destroy()

destroy instance
Overrides:
Source:

disconnect() → {Help4.widget.tour.Observer}

stop observation
Source:
Returns:
Type
Help4.widget.tour.Observer

isDestroyed() → {boolean}

whether instance is destroyed
Overrides:
Source:
Returns:
Type
boolean

observe(tileData) → {Help4.widget.tour.Observer}

see Help4.engine.hotspotManager.HotspotManagerEngine.prototype.observe
Parameters:
Name Type Description
tileData Help4.data.TileData
Source:
Returns:
Type
Help4.widget.tour.Observer

onElementEvent(event)

Parameters:
Name Type Description
event Help4.widget.tour.Observer.ElementEvent
Source:

removeListener(eventType, listener) → {Help4.jscore.Base}

remove an event listener
Parameters:
Name Type Description
eventType string | Array.<string>
listener Help4.EmbeddedEvent.Listener
Overrides:
Source:
Returns:
Type
Help4.jscore.Base

Type Definitions

ElementEvent

Type:
  • Object
Properties:
Name Type Attributes Description
event MouseEvent | KeyboardEvent | FocusEvent | Object
id string <optional>
params Object <optional>
Properties
Name Type Description
value Object
Properties
Name Type Description
old *
cur *
Source:

Status

Type:
  • Object
Properties:
Name Type Attributes Description
id string <optional>
<nullable>
visible boolean <optional>
<nullable>
Source: