# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp

# This domain exposes DOM read/write operations. Each DOM Node is represented with its mirror object
# that has an `id`. This `id` can be used to get additional information on the Node, resolve it into
# the JavaScript object wrapper, etc. It is important that client receives DOM events only for the
# nodes that are known to the client. Backend keeps track of the nodes that were sent to the client
# and never sends the same node twice. It is client's responsibility to collect information about
# the nodes that were sent to the client. Note that `iframe` owner elements will return
# corresponding document elements as their child nodes.
domain DOM
  depends on Runtime

  # Unique DOM node identifier.
  type NodeId extends integer

  # Unique DOM node identifier used to reference a node that may not have been pushed to the
  # front-end.
  type BackendNodeId extends integer

  # Unique identifier for a CSS stylesheet.
  type StyleSheetId extends string

  # Backend node with a friendly name.
  type BackendNode extends object
    properties
      # `Node`'s nodeType.
      integer nodeType
      # `Node`'s nodeName.
      string nodeName
      BackendNodeId backendNodeId

  # Pseudo element type.
  type PseudoType extends string
    enum
      first-line
      first-letter
      checkmark
      before
      after
      picker-icon
      interest-hint
      marker
      backdrop
      column
      selection
      search-text
      target-text
      spelling-error
      grammar-error
      highlight
      first-line-inherited
      scroll-marker
      scroll-marker-group
      scroll-button
      scrollbar
      scrollbar-thumb
      scrollbar-button
      scrollbar-track
      scrollbar-track-piece
      scrollbar-corner
      resizer
      input-list-button
      view-transition
      view-transition-group
      view-transition-image-pair
      view-transition-group-children
      view-transition-old
      view-transition-new
      placeholder
      file-selector-button
      details-content
      picker
      permission-icon
      overscroll-area-parent

  # Shadow root type.
  type ShadowRootType extends string
    enum
      user-agent
      open
      closed

  # Document compatibility mode.
  type CompatibilityMode extends string
    enum
      QuirksMode
      LimitedQuirksMode
      NoQuirksMode

  # ContainerSelector physical axes
  type PhysicalAxes extends string
    enum
      Horizontal
      Vertical
      Both

  # ContainerSelector logical axes
  type LogicalAxes extends string
    enum
      Inline
      Block
      Both

  # Physical scroll orientation
  type ScrollOrientation extends string
    enum
      horizontal
      vertical

  # DOM interaction is implemented in terms of mirror objects that represent the actual DOM nodes.
  # DOMNode is a base node mirror type.
  type Node extends object
    properties
      # Node identifier that is passed into the rest of the DOM messages as the `nodeId`. Backend
      # will only push node with given `id` once. It is aware of all requested nodes and will only
      # fire DOM events for nodes known to the client.
      NodeId nodeId
      # The id of the parent node if any.
      optional NodeId parentId
      # The BackendNodeId for this node.
      BackendNodeId backendNodeId
      # `Node`'s nodeType.
      integer nodeType
      # `Node`'s nodeName.
      string nodeName
      # `Node`'s localName.
      string localName
      # `Node`'s nodeValue.
      string nodeValue
      # Child count for `Container` nodes.
      optional integer childNodeCount
      # Child nodes of this node when requested with children.
      optional array of Node children
      # Attributes of the `Element` node in the form of flat array `[name1, value1, name2, value2]`.
      optional array of string attributes
      # Document URL that `Document` or `FrameOwner` node points to.
      optional string documentURL
      # Base URL that `Document` or `FrameOwner` node uses for URL completion.
      optional string baseURL
      # `DocumentType`'s publicId.
      optional string publicId
      # `DocumentType`'s systemId.
      optional string systemId
      # `DocumentType`'s internalSubset.
      optional string internalSubset
      # `Document`'s XML version in case of XML documents.
      optional string xmlVersion
      # `Attr`'s name.
      optional string name
      # `Attr`'s value.
      optional string value
      # Pseudo element type for this node.
      optional PseudoType pseudoType
      # Pseudo element identifier for this node. Only present if there is a
      # valid pseudoType.
      optional string pseudoIdentifier
      # Shadow root type.
      optional ShadowRootType shadowRootType
      # Frame ID for frame owner elements.
      optional Page.FrameId frameId
      # Content document for frame owner elements.
      optional Node contentDocument
      # Shadow root list for given element host.
      optional array of Node shadowRoots
      # Content document fragment for template elements.
      optional Node templateContent
      # Pseudo elements associated with this node.
      optional array of Node pseudoElements
      # Deprecated, as the HTML Imports API has been removed (crbug.com/937746).
      # This property used to return the imported document for the HTMLImport links.
      # The property is always undefined now.
      deprecated optional Node importedDocument
      # Distributed nodes for given insertion point.
      optional array of BackendNode distributedNodes
      # Whether the node is SVG.
      optional boolean isSVG
      optional CompatibilityMode compatibilityMode
      optional BackendNode assignedSlot
      experimental optional boolean isScrollable
      experimental optional boolean affectedByStartingStyles
      experimental optional array of StyleSheetId adoptedStyleSheets
      experimental optional boolean isAdRelated

  # A structure to hold the top-level node of a detached tree and an array of its retained descendants.
  type DetachedElementInfo extends object
    properties
      Node treeNode
      array of NodeId retainedNodeIds

  # A structure holding an RGBA color.
  type RGBA extends object
    properties
      # The red component, in the [0-255] range.
      integer r
      # The green component, in the [0-255] range.
      integer g
      # The blue component, in the [0-255] range.
      integer b
      # The alpha component, in the [0-1] range (default: 1).
      optional number a

  # An array of quad vertices, x immediately followed by y for each point, points clock-wise.
  type Quad extends array of number

  # Box model.
  type BoxModel extends object
    properties
      # Content box
      Quad content
      # Padding box
      Quad padding
      # Border box
      Quad border
      # Margin box
      Quad margin
      # Node width
      integer width
      # Node height
      integer height
      # Shape outside coordinates
      optional ShapeOutsideInfo shapeOutside

  # CSS Shape Outside details.
  type ShapeOutsideInfo extends object
    properties
      # Shape bounds
      Quad bounds
      # Shape coordinate details
      array of any shape
      # Margin shape bounds
      array of any marginShape

  # Rectangle.
  type Rect extends object
    properties
      # X coordinate
      number x
      # Y coordinate
      number y
      # Rectangle width
      number width
      # Rectangle height
      number height

  type CSSComputedStyleProperty extends object
    properties
      # Computed style property name.
      string name
      # Computed style property value.
      string value

  # Collects class names for the node with given id and all of it's child nodes.
  experimental command collectClassNamesFromSubtree
    parameters
      # Id of the node to collect class names.
      NodeId nodeId
    returns
      # Class name list.
      array of string classNames

  # Creates a deep copy of the specified node and places it into the target container before the
  # given anchor.
  experimental command copyTo
    parameters
      # Id of the node to copy.
      NodeId nodeId
      # Id of the element to drop the copy into.
      NodeId targetNodeId
      # Drop the copy before this node (if absent, the copy becomes the last child of
      # `targetNodeId`).
      optional NodeId insertBeforeNodeId
    returns
      # Id of the node clone.
      NodeId nodeId

  # Describes node given its id, does not require domain to be enabled. Does not start tracking any
  # objects, can be used for automation.
  command describeNode
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId
      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
      # entire subtree or provide an integer larger than 0.
      optional integer depth
      # Whether or not iframes and shadow roots should be traversed when returning the subtree
      # (default is false).
      optional boolean pierce
    returns
      # Node description.
      Node node

  # Scrolls the specified rect of the given node into view if not already visible.
  # Note: exactly one between nodeId, backendNodeId and objectId should be passed
  # to identify the node.
  command scrollIntoViewIfNeeded
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId
      # The rect to be scrolled into view, relative to the node's border box, in CSS pixels.
      # When omitted, center of the node will be used, similar to Element.scrollIntoView.
      optional Rect rect

  # Disables DOM agent for the given page.
  command disable

  # Discards search results from the session with the given id. `getSearchResults` should no longer
  # be called for that search.
  experimental command discardSearchResults
    parameters
      # Unique search session identifier.
      string searchId

  # Enables DOM agent for the given page.
  command enable
    parameters
      # Whether to include whitespaces in the children array of returned Nodes.
      experimental optional enum includeWhitespace
        # Strip whitespaces from child arrays (default).
        none
        # Return all children including block-level whitespace nodes.
        all

  # Focuses the given element.
  command focus
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId

  # Returns attributes for the specified node.
  command getAttributes
    parameters
      # Id of the node to retrieve attributes for.
      NodeId nodeId
    returns
      # An interleaved array of node attribute names and values.
      array of string attributes

  # Returns boxes for the given node.
  command getBoxModel
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId
    returns
      # Box model for the node.
      BoxModel model

  # Returns quads that describe node position on the page. This method
  # might return multiple quads for inline nodes.
  experimental command getContentQuads
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId
    returns
      # Quads that describe node layout relative to viewport.
      array of Quad quads

  # Returns the root DOM node (and optionally the subtree) to the caller.
  # Implicitly enables the DOM domain events for the current target.
  command getDocument
    parameters
      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
      # entire subtree or provide an integer larger than 0.
      optional integer depth
      # Whether or not iframes and shadow roots should be traversed when returning the subtree
      # (default is false).
      optional boolean pierce
    returns
      # Resulting node.
      Node root

  # Returns the root DOM node (and optionally the subtree) to the caller.
  # Deprecated, as it is not designed to work well with the rest of the DOM agent.
  # Use DOMSnapshot.captureSnapshot instead.
  deprecated command getFlattenedDocument
    parameters
      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
      # entire subtree or provide an integer larger than 0.
      optional integer depth
      # Whether or not iframes and shadow roots should be traversed when returning the subtree
      # (default is false).
      optional boolean pierce
    returns
      # Resulting node.
      array of Node nodes

  # Finds nodes with a given computed style in a subtree.
  experimental command getNodesForSubtreeByStyle
    parameters
      # Node ID pointing to the root of a subtree.
      NodeId nodeId
      # The style to filter nodes by (includes nodes if any of properties matches).
      array of CSSComputedStyleProperty computedStyles
      # Whether or not iframes and shadow roots in the same target should be traversed when returning the
      # results (default is false).
      optional boolean pierce
    returns
      # Resulting nodes.
      array of NodeId nodeIds

  # Returns node id at given location. Depending on whether DOM domain is enabled, nodeId is
  # either returned or not.
  command getNodeForLocation
    parameters
      # X coordinate.
      integer x
      # Y coordinate.
      integer y
      # False to skip to the nearest non-UA shadow root ancestor (default: false).
      optional boolean includeUserAgentShadowDOM
      # Whether to ignore pointer-events: none on elements and hit test them.
      optional boolean ignorePointerEventsNone
    returns
      # Resulting node.
      BackendNodeId backendNodeId
      # Frame this node belongs to.
      Page.FrameId frameId
      # Id of the node at given coordinates, only when enabled and requested document.
      optional NodeId nodeId

  # Returns node's HTML markup.
  command getOuterHTML
    parameters
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId
      # Include all shadow roots. Equals to false if not specified.
      experimental optional boolean includeShadowDOM
    returns
      # Outer HTML markup.
      string outerHTML

  # Returns the id of the nearest ancestor that is a relayout boundary.
  experimental command getRelayoutBoundary
    parameters
      # Id of the node.
      NodeId nodeId
    returns
      # Relayout boundary node id for the given node.
      NodeId nodeId

  # Returns search results from given `fromIndex` to given `toIndex` from the search with the given
  # identifier.
  experimental command getSearchResults
    parameters
      # Unique search session identifier.
      string searchId
      # Start index of the search result to be returned.
      integer fromIndex
      # End index of the search result to be returned.
      integer toIndex
    returns
      # Ids of the search result nodes.
      array of NodeId nodeIds

  # Hides any highlight.
  command hideHighlight
    # Use 'Overlay.hideHighlight' instead
    redirect Overlay

  # Highlights DOM node.
  command highlightNode
    # Use 'Overlay.highlightNode' instead
    redirect Overlay

  # Highlights given rectangle.
  command highlightRect
    # Use 'Overlay.highlightRect' instead
    redirect Overlay

  # Marks last undoable state.
  experimental command markUndoableState

  # Moves node into the new container, places it before the given anchor.
  command moveTo
    parameters
      # Id of the node to move.
      NodeId nodeId
      # Id of the element to drop the moved node into.
      NodeId targetNodeId
      # Drop node before this one (if absent, the moved node becomes the last child of
      # `targetNodeId`).
      optional NodeId insertBeforeNodeId
    returns
      # New id of the moved node.
      NodeId nodeId

  # Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or
  # `cancelSearch` to end this search session.
  experimental command performSearch
    parameters
      # Plain text or query selector or XPath search query.
      string query
      # True to search in user agent shadow DOM.
      optional boolean includeUserAgentShadowDOM
    returns
      # Unique search session identifier.
      string searchId
      # Number of search results.
      integer resultCount

  # Requests that the node is sent to the caller given its path. // FIXME, use XPath
  experimental command pushNodeByPathToFrontend
    parameters
      # Path to node in the proprietary format.
      string path
    returns
      # Id of the node for given path.
      NodeId nodeId

  # Requests that a batch of nodes is sent to the caller given their backend node ids.
  experimental command pushNodesByBackendIdsToFrontend
    parameters
      # The array of backend node ids.
      array of BackendNodeId backendNodeIds
    returns
      # The array of ids of pushed nodes that correspond to the backend ids specified in
      # backendNodeIds.
      array of NodeId nodeIds

  # Executes `querySelector` on a given node.
  command querySelector
    parameters
      # Id of the node to query upon.
      NodeId nodeId
      # Selector string.
      string selector
    returns
      # Query selector result.
      NodeId nodeId

  # Executes `querySelectorAll` on a given node.
  command querySelectorAll
    parameters
      # Id of the node to query upon.
      NodeId nodeId
      # Selector string.
      string selector
    returns
      # Query selector result.
      array of NodeId nodeIds

  # Returns NodeIds of current top layer elements.
  # Top layer is rendered closest to the user within a viewport, therefore its elements always
  # appear on top of all other content.
  experimental command getTopLayerElements
    returns
      # NodeIds of top layer elements
      array of NodeId nodeIds

  # Returns the NodeId of the matched element according to certain relations.
  experimental command getElementByRelation
    parameters
      # Id of the node from which to query the relation.
      NodeId nodeId
      # Type of relation to get.
      enum relation
        # Get the popover target for a given element. In this case, this given
        # element can only be an HTMLFormControlElement (<input>, <button>).
        PopoverTarget
        # Get the interestfor target (the attribute used to be named
        # `interesttarget`) for for a given element.
        InterestTarget
        # Get the commandfor target for a given element. In this case, this given
        # element can only be an HTMLButtonElement.
        CommandFor
    returns
      # NodeId of the element matching the queried relation.
      NodeId nodeId

  # Re-does the last undone action.
  experimental command redo

  # Removes attribute with given name from an element with given id.
  command removeAttribute
    parameters
      # Id of the element to remove attribute from.
      NodeId nodeId
      # Name of the attribute to remove.
      string name

  # Removes node with given id.
  command removeNode
    parameters
      # Id of the node to remove.
      NodeId nodeId

  # Requests that children of the node with given id are returned to the caller in form of
  # `setChildNodes` events where not only immediate children are retrieved, but all children down to
  # the specified depth.
  command requestChildNodes
    parameters
      # Id of the node to get children for.
      NodeId nodeId
      # The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
      # entire subtree or provide an integer larger than 0.
      optional integer depth
      # Whether or not iframes and shadow roots should be traversed when returning the sub-tree
      # (default is false).
      optional boolean pierce

  # Requests that the node is sent to the caller given the JavaScript node object reference. All
  # nodes that form the path from the node to the root are also sent to the client as a series of
  # `setChildNodes` notifications.
  command requestNode
    parameters
      # JavaScript object id to convert into node.
      Runtime.RemoteObjectId objectId
    returns
      # Node id for given object.
      NodeId nodeId

  # Resolves the JavaScript node object for a given NodeId or BackendNodeId.
  command resolveNode
    parameters
      # Id of the node to resolve.
      optional NodeId nodeId
      # Backend identifier of the node to resolve.
      optional DOM.BackendNodeId backendNodeId
      # Symbolic group name that can be used to release multiple objects.
      optional string objectGroup
      # Execution context in which to resolve the node.
      optional Runtime.ExecutionContextId executionContextId
    returns
      # JavaScript object wrapper for given node.
      Runtime.RemoteObject object

  # Sets attribute for an element with given id.
  command setAttributeValue
    parameters
      # Id of the element to set attribute for.
      NodeId nodeId
      # Attribute name.
      string name
      # Attribute value.
      string value

  # Sets attributes on element with given id. This method is useful when user edits some existing
  # attribute value and types in several attribute name/value pairs.
  command setAttributesAsText
    parameters
      # Id of the element to set attributes for.
      NodeId nodeId
      # Text with a number of attributes. Will parse this text using HTML parser.
      string text
      # Attribute name to replace with new attributes derived from text in case text parsed
      # successfully.
      optional string name

  # Sets files for the given file input element.
  command setFileInputFiles
    parameters
      # Array of file paths to set.
      array of string files
      # Identifier of the node.
      optional NodeId nodeId
      # Identifier of the backend node.
      optional BackendNodeId backendNodeId
      # JavaScript object id of the node wrapper.
      optional Runtime.RemoteObjectId objectId

  # Sets if stack traces should be captured for Nodes. See `Node.getNodeStackTraces`. Default is disabled.
  experimental command setNodeStackTracesEnabled
    parameters
      # Enable or disable.
      boolean enable

  # Gets stack traces associated with a Node. As of now, only provides stack trace for Node creation.
  experimental command getNodeStackTraces
    parameters
      # Id of the node to get stack traces for.
      NodeId nodeId
    returns
      # Creation stack trace, if available.
      optional Runtime.StackTrace creation

  # Returns file information for the given
  # File wrapper.
  experimental command getFileInfo
    parameters
      # JavaScript object id of the node wrapper.
      Runtime.RemoteObjectId objectId
    returns
      string path

  # Returns list of detached nodes
  experimental command getDetachedDomNodes
    returns
      # The list of detached nodes
      array of DetachedElementInfo detachedNodes

  # Enables console to refer to the node with given id via $x (see Command Line API for more details
  # $x functions).
  experimental command setInspectedNode
    parameters
      # DOM node id to be accessible by means of $x command line API.
      NodeId nodeId

  # Sets node name for a node with given id.
  command setNodeName
    parameters
      # Id of the node to set name for.
      NodeId nodeId
      # New node's name.
      string name
    returns
      # New node's id.
      NodeId nodeId

  # Sets node value for a node with given id.
  command setNodeValue
    parameters
      # Id of the node to set value for.
      NodeId nodeId
      # New node's value.
      string value

  # Sets node HTML markup, returns new node id.
  command setOuterHTML
    parameters
      # Id of the node to set markup for.
      NodeId nodeId
      # Outer HTML markup to set.
      string outerHTML

  # Undoes the last performed action.
  experimental command undo

  # Returns iframe node that owns iframe with the given domain.
  experimental command getFrameOwner
    parameters
      Page.FrameId frameId
    returns
      # Resulting node.
      BackendNodeId backendNodeId
      # Id of the node at given coordinates, only when enabled and requested document.
      optional NodeId nodeId

  # Returns the query container of the given node based on container query
  # conditions: containerName, physical and logical axes, and whether it queries
  # scroll-state or anchored elements. If no axes are provided and
  # queriesScrollState is false, the style container is returned, which is the
  # direct parent or the closest element with a matching container-name.
  experimental command getContainerForNode
    parameters
      NodeId nodeId
      optional string containerName
      optional PhysicalAxes physicalAxes
      optional LogicalAxes logicalAxes
      optional boolean queriesScrollState
      optional boolean queriesAnchored
    returns
      # The container node for the given node, or null if not found.
      optional NodeId nodeId

  # Returns the descendants of a container query container that have
  # container queries against this container.
  experimental command getQueryingDescendantsForContainer
    parameters
      # Id of the container node to find querying descendants from.
      NodeId nodeId
    returns
      # Descendant nodes with container queries against the given container.
      array of NodeId nodeIds

  # Returns the target anchor element of the given anchor query according to
  # https://www.w3.org/TR/css-anchor-position-1/#target.
  experimental command getAnchorElement
    parameters
      # Id of the positioned element from which to find the anchor.
      NodeId nodeId
      # An optional anchor specifier, as defined in
      # https://www.w3.org/TR/css-anchor-position-1/#anchor-specifier.
      # If not provided, it will return the implicit anchor element for
      # the given positioned element.
      optional string anchorSpecifier
    returns
      # The anchor element of the given anchor query.
      NodeId nodeId

  # When enabling, this API force-opens the popover identified by nodeId
  # and keeps it open until disabled.
  experimental command forceShowPopover
    parameters
      # Id of the popover HTMLElement
      NodeId nodeId
      # If true, opens the popover and keeps it open. If false, closes the
      # popover if it was previously force-opened.
      boolean enable
    returns
      # List of popovers that were closed in order to respect popover stacking order.
      array of NodeId nodeIds

  # Fired when `Element`'s attribute is modified.
  event attributeModified
    parameters
      # Id of the node that has changed.
      NodeId nodeId
      # Attribute name.
      string name
      # Attribute value.
      string value

  # Fired when `Element`'s adoptedStyleSheets are modified.
  experimental event adoptedStyleSheetsModified
    parameters
      # Id of the node that has changed.
      NodeId nodeId
      # New adoptedStyleSheets array.
      experimental array of StyleSheetId adoptedStyleSheets

  # Fired when `Element`'s attribute is removed.
  event attributeRemoved
    parameters
      # Id of the node that has changed.
      NodeId nodeId
      # A ttribute name.
      string name

  # Mirrors `DOMCharacterDataModified` event.
  event characterDataModified
    parameters
      # Id of the node that has changed.
      NodeId nodeId
      # New text value.
      string characterData

  # Fired when `Container`'s child node count has changed.
  event childNodeCountUpdated
    parameters
      # Id of the node that has changed.
      NodeId nodeId
      # New node count.
      integer childNodeCount

  # Mirrors `DOMNodeInserted` event.
  event childNodeInserted
    parameters
      # Id of the node that has changed.
      NodeId parentNodeId
      # Id of the previous sibling.
      NodeId previousNodeId
      # Inserted node data.
      Node node

  # Mirrors `DOMNodeRemoved` event.
  event childNodeRemoved
    parameters
      # Parent id.
      NodeId parentNodeId
      # Id of the node that has been removed.
      NodeId nodeId

  # Called when distribution is changed.
  experimental event distributedNodesUpdated
    parameters
      # Insertion point where distributed nodes were updated.
      NodeId insertionPointId
      # Distributed nodes for given insertion point.
      array of BackendNode distributedNodes

  # Fired when `Document` has been totally updated. Node ids are no longer valid.
  event documentUpdated

  # Fired when `Element`'s inline style is modified via a CSS property modification.
  experimental event inlineStyleInvalidated
    parameters
      # Ids of the nodes for which the inline styles have been invalidated.
      array of NodeId nodeIds

  # Called when a pseudo element is added to an element.
  experimental event pseudoElementAdded
    parameters
      # Pseudo element's parent element id.
      NodeId parentId
      # The added pseudo element.
      Node pseudoElement

  # Called when top layer elements are changed.
  experimental event topLayerElementsUpdated

  # Fired when a node's scrollability state changes.
  experimental event scrollableFlagUpdated
    parameters
      # The id of the node.
      DOM.NodeId nodeId
      # If the node is scrollable.
      boolean isScrollable

  # Fired when a node's ad related state changes.
  experimental event adRelatedStateUpdated
    parameters
      # The id of the node.
      DOM.NodeId nodeId
      # If the node is ad related.
      boolean isAdRelated

  # Fired when a node's starting styles changes.
  experimental event affectedByStartingStylesFlagUpdated
    parameters
      # The id of the node.
      DOM.NodeId nodeId
      # If the node has starting styles.
      boolean affectedByStartingStyles

  # Called when a pseudo element is removed from an element.
  experimental event pseudoElementRemoved
    parameters
      # Pseudo element's parent element id.
      NodeId parentId
      # The removed pseudo element id.
      NodeId pseudoElementId

  # Fired when backend wants to provide client with the missing DOM structure. This happens upon
  # most of the calls requesting node ids.
  event setChildNodes
    parameters
      # Parent node id to populate with children.
      NodeId parentId
      # Child nodes array.
      array of Node nodes

  # Called when shadow root is popped from the element.
  experimental event shadowRootPopped
    parameters
      # Host element id.
      NodeId hostId
      # Shadow root id.
      NodeId rootId

  # Called when shadow root is pushed into the element.
  experimental event shadowRootPushed
    parameters
      # Host element id.
      NodeId hostId
      # Shadow root.
      Node root