package layertree

// Code generated by cdproto-gen. DO NOT EDIT.

import (
	"fmt"
	"strings"

	"github.com/chromedp/cdproto/cdp"
	"github.com/chromedp/cdproto/dom"
)

// LayerID unique Layer identifier.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-LayerId
type LayerID string

// String returns the LayerID as string value.
func (t LayerID) String() string {
	return string(t)
}

// SnapshotID unique snapshot identifier.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-SnapshotId
type SnapshotID string

// String returns the SnapshotID as string value.
func (t SnapshotID) String() string {
	return string(t)
}

// ScrollRect rectangle where scrolling happens on the main thread.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-ScrollRect
type ScrollRect struct {
	Rect *dom.Rect      `json:"rect"` // Rectangle itself.
	Type ScrollRectType `json:"type"` // Reason for rectangle to force scrolling on the main thread
}

// StickyPositionConstraint sticky position constraints.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-StickyPositionConstraint
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
}

// PictureTile serialized fragment of layer picture along with its offset
// within the layer.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-PictureTile
type PictureTile struct {
	X       float64 `json:"x"`       // Offset from owning layer left boundary
	Y       float64 `json:"y"`       // Offset from owning layer top boundary
	Picture string  `json:"picture"` // Base64-encoded snapshot data.
}

// Layer information about a compositing layer.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-Layer
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
}

// PaintProfile array of timings, one per paint step.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-PaintProfile
type PaintProfile []float64

// ScrollRectType reason for rectangle to force scrolling on the main thread.
//
// See: https://chromedevtools.github.io/devtools-protocol/tot/LayerTree#type-ScrollRect
type ScrollRectType string

// String returns the ScrollRectType as string value.
func (t ScrollRectType) String() string {
	return string(t)
}

// ScrollRectType values.
const (
	ScrollRectTypeRepaintsOnScroll  ScrollRectType = "RepaintsOnScroll"
	ScrollRectTypeTouchEventHandler ScrollRectType = "TouchEventHandler"
	ScrollRectTypeWheelEventHandler ScrollRectType = "WheelEventHandler"
)

// UnmarshalJSON satisfies [json.Unmarshaler].
func (t *ScrollRectType) UnmarshalJSON(buf []byte) error {
	s := string(buf)
	s = strings.TrimSuffix(strings.TrimPrefix(s, `"`), `"`)

	switch ScrollRectType(s) {
	case ScrollRectTypeRepaintsOnScroll:
		*t = ScrollRectTypeRepaintsOnScroll
	case ScrollRectTypeTouchEventHandler:
		*t = ScrollRectTypeTouchEventHandler
	case ScrollRectTypeWheelEventHandler:
		*t = ScrollRectTypeWheelEventHandler
	default:
		return fmt.Errorf("unknown ScrollRectType value: %v", s)
	}
	return nil
}