Interface PointerActivity

Represents a pointer activity.

An object that represents a sequence of PointerEvents with the same pointerId from after pointerenter to ponterleave.

interface PointerActivity {
    beforeTrace: null | Trace;
    device: PointerDevice;
    duration: number;
    endTrace: null | Trace;
    inProgress: boolean;
    isPrimary: boolean;
    movement: {
        angle: number;
        length: number;
        x: number;
        y: number;
    };
    pointerId: number;
    result: Promise<Result>;
    startTime: number;
    startTrace: null | Trace;
    target: null | Element;
    track: number;
    [asyncIterator](): AsyncGenerator<Trace, void, void>;
}

Properties

beforeTrace device duration endTrace inProgress isPrimary movement pointerId result startTime startTrace target track

Methods

[asyncIterator]

Properties

Readonly beforeTrace

beforeTrace: null | Trace

Indicates the PointerActivity.Trace record before the startTrace record. Set if the pointer is pointerenter from outside the boundaries of target element. Otherwise, null.

This value is never changed.

Readonly device

device: PointerDevice

Indicates the PointerDevice.

This value is never changed.

Readonly duration

duration: number

Indicates the elapsed time from startTrace record to latest PointerActivity.Trace record.

This value is 0 when the instance is created; it keeps increasing while tracking the pointer. When the instance inProgress is set to false, this value is not changed thereafter.

Readonly endTrace

endTrace: null | Trace

Indicates the end PointerActivity.Trace record of the PointerActivity.

This value is null when the instance is created. When the instance inProgress is set to false, the PointerActivity.Trace is set to this value and this value is not changed thereafter.

Readonly inProgress

inProgress: boolean

Indicates whether that no endTrace record has been recorded.

The value is true when the instance is created. Never changed after being changed to false.

Readonly isPrimary

isPrimary: boolean

Indicates the isPrimary property of the PointerEvent.

This value is never changed.

Readonly movement

movement: {
    angle: number;
    length: number;
    x: number;
    y: number;
}

Type declaration

  • angle: number
  • length: number
  • x: number
  • y: number

Readonly pointerId

pointerId: number

Indicates the pointerId property of the PointerEvent.

This value is never changed.

Readonly result

result: Promise<Result>

The Promise that resolves to a PointerActivity.Result.

Readonly startTime

startTime: number

Indicates the timeStamp property of this startTrace record.

This value is never changed.

Readonly startTrace

startTrace: null | Trace

Indicates the start PointerActivity.Trace record of the PointerActivity.

This value is never changed.

Readonly target

target: null | Element

Indicates the monitoring target element of the PointerActivityObserver.

This value is never changed.

Readonly track

track: number

Methods

[asyncIterator]

  • [asyncIterator](): AsyncGenerator<Trace, void, void>

  • Returns the AsyncGenerator of PointerActivity.Trace records.

    Returns AsyncGenerator<Trace, void, void>

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beforeTracedevicedurationendTraceinProgressisPrimarymovementpointerIdresultstartTimestartTracetargettrack[asyncIterator]