PerformanceTimeline

Reporting of performance timeline events, as specified in https://w3c.github.io/performance-timeline/#dom-performanceobserver.

Constructors

constructor(cdp: CDP)

@Serializable

data class EnableParameter(val eventTypes: List<String>)

@Serializable

data class LargestContentfulPaint(val renderTime: Double, val loadTime: Double, val size: Double, val elementId: String? = null, val url: String? = null, val nodeId: Int? = null)

See https://github.com/WICG/LargestContentfulPaint and largest_contentful_paint.idl

@Serializable

data class LayoutShift(val value: Double, val hadRecentInput: Boolean, val lastInputTime: Double, val sources: List<PerformanceTimeline.LayoutShiftAttribution>)

See https://wicg.github.io/layout-instability/#sec-layout-shift and layout_shift.idl

@Serializable

data class LayoutShiftAttribution(val previousRect: DOM.Rect, val currentRect: DOM.Rect, val nodeId: Int? = null)

@Serializable

data class TimelineEvent(val frameId: String, val type: String, val name: String, val time: Double, val duration: Double? = null, val lcpDetails: PerformanceTimeline.LargestContentfulPaint? = null, val layoutShiftDetails: PerformanceTimeline.LayoutShift? = null)

@Serializable

Sent when a performance timeline event is added. See reportPerformanceTimeline method.

Sent when a performance timeline event is added. See reportPerformanceTimeline method.

suspend fun enable(eventTypes: List<String>)

Previously buffered events would be reported before method returns. See also: timelineEventAdded