Interface RTCTrackEvent

The WebRTC API interface RTCTrackEvent represents the RTCPeerConnection.track_event event, which is sent when a new MediaStreamTrack is added to an RTCRtpReceiver which is part of the RTCPeerConnection.

MDN Reference

interface RTCTrackEvent {
    AT_TARGET: 2;
    bubbles: boolean;
    BUBBLING_PHASE: 3;
    cancelable: boolean;
    cancelBubble: boolean;
    CAPTURING_PHASE: 1;
    composed: boolean;
    currentTarget: EventTarget | null;
    defaultPrevented: boolean;
    eventPhase: number;
    isTrusted: boolean;
    NONE: 0;
    receiver: RTCRtpReceiver;
    returnValue: boolean;
    srcElement: EventTarget | null;
    streams: readonly MediaStream[];
    target: EventTarget | null;
    timeStamp: number;
    track: MediaStreamTrack;
    transceiver: RTCRtpTransceiver;
    type: string;
    composedPath(): EventTarget[];
    initEvent(type: string, bubbles?: boolean, cancelable?: boolean): void;
    preventDefault(): void;
    stopImmediatePropagation(): void;
    stopPropagation(): void;
}
Hierarchy
  • Event
    • RTCTrackEvent
Index

Properties

AT_TARGET bubbles BUBBLING_PHASE cancelable cancelBubble CAPTURING_PHASE composed currentTarget defaultPrevented eventPhase isTrusted NONE receiver returnValue srcElement streams target timeStamp track transceiver type

Methods

composedPath initEvent preventDefault stopImmediatePropagation stopPropagation

Properties

AT_TARGET: 2
bubbles: boolean

The bubbles read-only property of the Event interface indicates whether the event bubbles up through the DOM tree or not.

MDN Reference

BUBBLING_PHASE: 3
cancelable: boolean

The cancelable read-only property of the Event interface indicates whether the event can be canceled, and therefore prevented as if the event never happened.

MDN Reference

cancelBubble: boolean

The cancelBubble property of the Event interface is deprecated.

MDN Reference

CAPTURING_PHASE: 1
composed: boolean

The read-only composed property of the or not the event will propagate across the shadow DOM boundary into the standard DOM.

MDN Reference

currentTarget: EventTarget | null

The currentTarget read-only property of the Event interface identifies the element to which the event handler has been attached.

MDN Reference

defaultPrevented: boolean

The defaultPrevented read-only property of the Event interface returns a boolean value indicating whether or not the call to Event.preventDefault() canceled the event.

MDN Reference

eventPhase: number

The eventPhase read-only property of the being evaluated.

MDN Reference

isTrusted: boolean

The isTrusted read-only property of the when the event was generated by the user agent (including via user actions and programmatic methods such as HTMLElement.focus()), and false when the event was dispatched via The only exception is the click event, which initializes the isTrusted property to false in user agents.

MDN Reference

NONE: 0
receiver: RTCRtpReceiver

The read-only receiver property of the RTCTrackEvent interface indicates the The RTCRtpReceiver which pairs the receiver with a sender and other properties which establish a single bidirectional RTP stream for use by the RTCTrackEvent.track associated with the RTCTrackEvent.

MDN Reference

returnValue: boolean

The Event property returnValue indicates whether the default action for this event has been prevented or not.

MDN Reference

srcElement: EventTarget | null

The deprecated Event.srcElement is an alias for the Event.target property.

MDN Reference

streams: readonly MediaStream[]

The WebRTC API interface RTCTrackEvent's read-only streams property specifies an array of track being added to the RTCPeerConnection.

MDN Reference

target: EventTarget | null

The read-only target property of the dispatched.

MDN Reference

timeStamp: number

The timeStamp read-only property of the Event interface returns the time (in milliseconds) at which the event was created.

MDN Reference

track: MediaStreamTrack

The

MDN Reference

transceiver: RTCRtpTransceiver

The WebRTC API interface RTCTrackEvent's read-only transceiver property indicates the The transceiver pairs the track's The RTCRtpTransceiver which pairs the receiver with a sender and other properties which establish a single bidirectional RTP stream for use by the RTCTrackEvent.track associated with the RTCTrackEvent.

MDN Reference

type: string

The type read-only property of the Event interface returns a string containing the event's type.

MDN Reference

Methods

  • The composedPath() method of the Event interface returns the event's path which is an array of the objects on which listeners will be invoked.

    MDN Reference

    Returns EventTarget[]

  • The Event.initEvent() method is used to initialize the value of an event created using Document.createEvent().

    Parameters

    • type: string
    • Optionalbubbles: boolean
    • Optionalcancelable: boolean

    Returns void

    MDN Reference

  • The preventDefault() method of the Event interface tells the user agent that if the event does not get explicitly handled, its default action should not be taken as it normally would be.

    MDN Reference

    Returns void

  • The stopImmediatePropagation() method of the If several listeners are attached to the same element for the same event type, they are called in the order in which they were added.

    MDN Reference

    Returns void

  • The stopPropagation() method of the Event interface prevents further propagation of the current event in the capturing and bubbling phases.

    MDN Reference

    Returns void

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