Module cdp::layer_tree

[Experimental]

LayerTree

Commands

• LayerTree.enable Experimental

  Enables compositing tree inspection.

• LayerTree.disable Experimental

  Disables compositing tree inspection.

• LayerTree.compositingReasons Experimental

  Provides the reasons why the given layer was composited.

• LayerTree.makeSnapshot Experimental

  Returns the layer snapshot identifier.

• LayerTree.loadSnapshot Experimental

  Returns the snapshot identifier.

• LayerTree.releaseSnapshot Experimental

  Releases layer snapshot captured by the back-end.

• LayerTree.profileSnapshot Experimental

• LayerTree.replaySnapshot Experimental

  Replays the layer snapshot and returns the resulting bitmap.

• LayerTree.snapshotCommandLog Experimental

  Replays the layer snapshot and returns canvas log.

Events

• LayerTree.layerTreeDidChange Experimental
• LayerTree.layerPainted Experimental

Types

• LayerId Experimental

  Unique Layer identifier.

• SnapshotId Experimental

  Unique snapshot identifier.

• ScrollRect Experimental

  Rectangle where scrolling happens on the main thread.

• StickyPositionConstraint Experimental

  Sticky position constraints.

• PictureTile Experimental

  Serialized fragment of layer picture along with its offset within the layer.

• Layer Experimental

  Information about a compositing layer.

• PaintProfile Experimental

  Array of timings, one per paint step.

Structs

CompositingReasonsCommand	[Experimental] Provides the reasons why the given layer was composited.
CompositingReasonsResponse	[Experimental] Provides the reasons why the given layer was composited.
DisableCommand	[Experimental] Disables compositing tree inspection.
DisableResponse	[Experimental] Disables compositing tree inspection.
EnableCommand	[Experimental] Enables compositing tree inspection.
EnableResponse	[Experimental] Enables compositing tree inspection.
Layer	[Experimental] Information about a compositing layer.
LayerPaintedEvent	[Experimental]
LayerTreeDidChangeEvent	[Experimental]
LoadSnapshotCommand	[Experimental] Returns the snapshot identifier.
LoadSnapshotResponse	[Experimental] Returns the snapshot identifier.
MakeSnapshotCommand	[Experimental] Returns the layer snapshot identifier.
MakeSnapshotResponse	[Experimental] Returns the layer snapshot identifier.
PictureTile	[Experimental] Serialized fragment of layer picture along with its offset within the layer.
ProfileSnapshotCommand	[Experimental]
ProfileSnapshotResponse	[Experimental]
ReleaseSnapshotCommand	[Experimental] Releases layer snapshot captured by the back-end.
ReleaseSnapshotResponse	[Experimental] Releases layer snapshot captured by the back-end.
ReplaySnapshotCommand	[Experimental] Replays the layer snapshot and returns the resulting bitmap.
ReplaySnapshotResponse	[Experimental] Replays the layer snapshot and returns the resulting bitmap.
ScrollRect	[Experimental] Rectangle where scrolling happens on the main thread.
SnapshotCommandLogCommand	[Experimental] Replays the layer snapshot and returns canvas log.
SnapshotCommandLogResponse	[Experimental] Replays the layer snapshot and returns canvas log.
StickyPositionConstraint	[Experimental] Sticky position constraints.

Enums

ScrollRectType

[Experimental]

Type Definitions

LayerId	[Experimental] Unique Layer identifier.
PaintProfile	[Experimental] Array of timings, one per paint step.
SnapshotId	[Experimental] Unique snapshot identifier.