Class VisibilityStateEntry

Namespace

CSharpToJavaScript.APIs.JS

Assembly

CSharpToJavaScript.dll

NOTE

Experimental

The VisibilityStateEntry interface provides timings of page visibility state changes, i.e., when a tab changes from the foreground to the background or vice versa.

[Value("VisibilityStateEntry")]
public class VisibilityStateEntry : PerformanceEntry

Inheritance

object

PerformanceEntry

VisibilityStateEntry

Inherited Members

PerformanceEntry.ToJSON()

PerformanceEntry.Id

PerformanceEntry.NavigationId

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

This can be used to pinpoint visibility changes on the performance timeline, and cross-reference them against other performance entries such as "first-contentful-paint" (see PerformancePaintTiming).

There are two key visibility state change times that this API reports on:

The performance timeline will always have a "visibility-state" entry with a startTime of 0 and a name representing the initial page visibility state.

NOTE

Like other Performance APIs, this API extends PerformanceEntry.

Page Visibility API

See also on MDN

Constructors

VisibilityStateEntry()

public VisibilityStateEntry()

Properties

Duration

[Value("duration")]
public ulong Duration { get; }

Property Value

ulong

EntryType

[Value("entryType")]
public string EntryType { get; }

Property Value

string

Name

[Value("name")]
public string Name { get; }

Property Value

string

StartTime

[Value("startTime")]
public Number StartTime { get; }

Property Value

Number