@twick/timeline / Exports / ElementUpdater

Class: ElementUpdater

ElementUpdater visitor for updating elements in tracks Uses the visitor pattern to handle different element types Implements the Friend Class Pattern for explicit access control

Implements

• ElementVisitor<boolean>

Table of contents

Constructors

• constructor

Properties

• trackFriend

Methods

• visitAudioElement
• visitCaptionElement
• visitCircleElement
• visitIconElement
• visitImageElement
• visitRectElement
• visitTextElement
• visitVideoElement

Constructors

constructor

• new ElementUpdater(track): ElementUpdater

Parameters

Name	Type
track	Track

Returns

ElementUpdater

Defined in

packages/timeline/src/core/visitor/element-updater.ts:21

Properties

trackFriend

• Private trackFriend: TrackFriend

Defined in

packages/timeline/src/core/visitor/element-updater.ts:19

Methods

visitAudioElement

▸ visitAudioElement(element): boolean

Parameters

Name	Type
element	AudioElement

Returns

boolean

Implementation of

ElementVisitor.visitAudioElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:29

---

visitCaptionElement

▸ visitCaptionElement(element): boolean

Parameters

Name	Type
element	CaptionElement

Returns

boolean

Implementation of

ElementVisitor.visitCaptionElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:41

---

visitCircleElement

▸ visitCircleElement(element): boolean

Parameters

Name	Type
element	CircleElement

Returns

boolean

Implementation of

ElementVisitor.visitCircleElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:49

---

visitIconElement

▸ visitIconElement(element): boolean

Parameters

Name	Type
element	IconElement

Returns

boolean

Implementation of

ElementVisitor.visitIconElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:45

---

visitImageElement

▸ visitImageElement(element): boolean

Parameters

Name	Type
element	ImageElement

Returns

boolean

Implementation of

ElementVisitor.visitImageElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:33

---

visitRectElement

▸ visitRectElement(element): boolean

Parameters

Name	Type
element	RectElement

Returns

boolean

Implementation of

ElementVisitor.visitRectElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:53

---

visitTextElement

▸ visitTextElement(element): boolean

Parameters

Name	Type
element	TextElement

Returns

boolean

Implementation of

ElementVisitor.visitTextElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:37

---

visitVideoElement

▸ visitVideoElement(element): boolean

Parameters

Name	Type
element	VideoElement

Returns

boolean

Implementation of

ElementVisitor.visitVideoElement

Defined in

packages/timeline/src/core/visitor/element-updater.ts:25