layertree

type CompositingReasonsParams struct {
	LayerID LayerID `json:"layerId"` // The id of the layer for which we want to get the reasons it was composited.
}

type CompositingReasonsResult struct {
	CompositingReasons   []string `json:"compositingReasons,omitempty,omitzero"`   // A list of strings specifying reasons for the given layer to become composited.
	CompositingReasonIDs []string `json:"compositingReasonIds,omitempty,omitzero"` // A list of strings specifying reason IDs for the given layer to become composited.
}

type EventLayerPainted struct {
	LayerID LayerID   `json:"layerId"` // The id of the painted layer.
	Clip    *dom.Rect `json:"clip"`    // Clip rectangle.
}

type EventLayerTreeDidChange struct {
	Layers []*Layer `json:"layers,omitempty,omitzero"` // Layer tree, absent if not in the compositing mode.
}

type Layer struct {
	LayerID                  LayerID                   `json:"layerId"`                                     // The unique id for this layer.
	ParentLayerID            LayerID                   `json:"parentLayerId,omitempty,omitzero"`            // The id of parent (not present for root).
	BackendNodeID            cdp.BackendNodeID         `json:"backendNodeId,omitempty,omitzero"`            // The backend id for the node associated with this layer.
	OffsetX                  float64                   `json:"offsetX"`                                     // Offset from parent layer, X coordinate.
	OffsetY                  float64                   `json:"offsetY"`                                     // Offset from parent layer, Y coordinate.
	Width                    float64                   `json:"width"`                                       // Layer width.
	Height                   float64                   `json:"height"`                                      // Layer height.
	Transform                []float64                 `json:"transform,omitempty,omitzero"`                // Transformation matrix for layer, default is identity matrix
	AnchorX                  float64                   `json:"anchorX,omitempty,omitzero"`                  // Transform anchor point X, absent if no transform specified
	AnchorY                  float64                   `json:"anchorY,omitempty,omitzero"`                  // Transform anchor point Y, absent if no transform specified
	AnchorZ                  float64                   `json:"anchorZ,omitempty,omitzero"`                  // Transform anchor point Z, absent if no transform specified
	PaintCount               int64                     `json:"paintCount"`                                  // Indicates how many time this layer has painted.
	DrawsContent             bool                      `json:"drawsContent"`                                // Indicates whether this layer hosts any content, rather than being used for transform/scrolling purposes only.
	Invisible                bool                      `json:"invisible"`                                   // Set if layer is not visible.
	ScrollRects              []*ScrollRect             `json:"scrollRects,omitempty,omitzero"`              // Rectangles scrolling on main thread only.
	StickyPositionConstraint *StickyPositionConstraint `json:"stickyPositionConstraint,omitempty,omitzero"` // Sticky position constraint information
}

type LayerID string

type LoadSnapshotParams struct {
	Tiles []*PictureTile `json:"tiles"` // An array of tiles composing the snapshot.
}

type LoadSnapshotResult struct {
	SnapshotID SnapshotID `json:"snapshotId,omitempty,omitzero"` // The id of the snapshot.
}

type MakeSnapshotParams struct {
	LayerID LayerID `json:"layerId"` // The id of the layer.
}

type MakeSnapshotResult struct {
	SnapshotID SnapshotID `json:"snapshotId,omitempty,omitzero"` // The id of the layer snapshot.
}

type PaintProfile []float64

type PictureTile struct {
	X       float64 `json:"x"`       // Offset from owning layer left boundary
	Y       float64 `json:"y"`       // Offset from owning layer top boundary
	Picture []byte  `json:"picture"` // Base64-encoded snapshot data.
}

type ProfileSnapshotParams struct {
	SnapshotID     SnapshotID `json:"snapshotId"`                        // The id of the layer snapshot.
	MinRepeatCount int64      `json:"minRepeatCount,omitempty,omitzero"` // The maximum number of times to replay the snapshot (1, if not specified).
	MinDuration    float64    `json:"minDuration,omitempty,omitzero"`    // The minimum duration (in seconds) to replay the snapshot.
	ClipRect       *dom.Rect  `json:"clipRect,omitempty,omitzero"`       // The clip rectangle to apply when replaying the snapshot.
}

type ProfileSnapshotResult struct {
	Timings []PaintProfile `json:"timings,omitempty,omitzero"` // The array of paint profiles, one per run.
}

type ReleaseSnapshotParams struct {
	SnapshotID SnapshotID `json:"snapshotId"` // The id of the layer snapshot.
}

type ReplaySnapshotParams struct {
	SnapshotID SnapshotID `json:"snapshotId"`                  // The id of the layer snapshot.
	FromStep   int64      `json:"fromStep,omitempty,omitzero"` // The first step to replay from (replay from the very start if not specified).
	ToStep     *int64     `json:"toStep,omitempty,omitzero"`   // The last step to replay to (replay till the end if not specified).
	Scale      float64    `json:"scale,omitempty,omitzero"`    // The scale to apply while replaying (defaults to 1).
}

type ReplaySnapshotResult struct {
	DataURL string `json:"dataURL,omitempty,omitzero"` // A data: URL for resulting image.
}

type ScrollRect struct {
	Rect *dom.Rect      `json:"rect"` // Rectangle itself.
	Type ScrollRectType `json:"type"` // Reason for rectangle to force scrolling on the main thread
}

type ScrollRectType string

type SnapshotCommandLogParams struct {
	SnapshotID SnapshotID `json:"snapshotId"` // The id of the layer snapshot.
}

type SnapshotCommandLogResult struct {
	CommandLog []jsonv2.Value `json:"commandLog,omitempty,omitzero"` // The array of canvas function calls.
}

type SnapshotID string

type StickyPositionConstraint struct {
	StickyBoxRect                       *dom.Rect `json:"stickyBoxRect"`                                          // Layout rectangle of the sticky element before being shifted
	ContainingBlockRect                 *dom.Rect `json:"containingBlockRect"`                                    // Layout rectangle of the containing block of the sticky element
	NearestLayerShiftingStickyBox       LayerID   `json:"nearestLayerShiftingStickyBox,omitempty,omitzero"`       // The nearest sticky layer that shifts the sticky box
	NearestLayerShiftingContainingBlock LayerID   `json:"nearestLayerShiftingContainingBlock,omitempty,omitzero"` // The nearest sticky layer that shifts the containing block
}