/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

include "mozilla/GfxMessageUtils.h";
include "mozilla/dom/CSPMessageUtils.h";
include "mozilla/dom/DocShellMessageUtils.h";
include "mozilla/dom/PermissionMessageUtils.h";
include "mozilla/dom/PropertyBagUtils.h";
include "mozilla/dom/ReferrerInfoUtils.h";
include "mozilla/dom/TabMessageUtils.h";
include "mozilla/ipc/URIUtils.h";
include "mozilla/layers/LayersMessageUtils.h";
include "mozilla/net/ClassOfService.h";

include IPCBlob;
include IPCStream;
include ProtocolTypes;

using struct mozilla::void_t from "mozilla/ipc/IPCCore.h";

[MoveOnly=data] using struct mozilla::SerializedStructuredCloneBuffer
  from "mozilla/ipc/SerializedStructuredCloneBuffer.h";

using struct mozilla::dom::LoadingSessionHistoryInfo
  from "mozilla/dom/SessionHistoryEntry.h";

using mozilla::net::ClassOfService from "mozilla/net/ClassOfService.h";


using mozilla::hal::ScreenOrientation from "mozilla/HalIPCUtils.h";
using mozilla::LayoutDeviceIntRect from "Units.h";
using mozilla::DesktopIntRect from "Units.h";
using mozilla::DesktopToLayoutDeviceScale from "Units.h";
using mozilla::CSSToLayoutDeviceScale from "Units.h";
using mozilla::CSSRect from "Units.h";
using mozilla::CSSSize from "Units.h";
using mozilla::ScreenIntSize from "Units.h";
using mozilla::LayoutDeviceIntPoint from "Units.h";
using nsSizeMode from "nsIWidgetListener.h";
using mozilla::ScrollbarPreference from "mozilla/ScrollbarPreferences.h";
using mozilla::gfx::SurfaceFormat from "mozilla/gfx/Types.h";
[RefCounted] using class nsIPrincipal from "nsIPrincipal.h";
using mozilla::dom::MaybeDiscardedBrowsingContext from "mozilla/dom/BrowsingContext.h";
[RefCounted] using class nsIURI from "nsIURI.h";
[RefCounted] using class nsIContentSecurityPolicy from "nsIContentSecurityPolicy.h";
[RefCounted] using class nsIInputStream from "mozilla/ipc/IPCStreamUtils.h";
[RefCounted] using class nsIReferrerInfo from "nsIReferrerInfo.h";
[RefCounted] using class nsIVariant from "nsIVariant.h";
using mozilla::TimeStamp from "mozilla/TimeStamp.h";
[RefCounted] using class mozilla::RemoteLazyInputStream from "mozilla/RemoteLazyInputStream.h";
[MoveOnly] using class mozilla::ipc::BigBuffer from "mozilla/ipc/BigBuffer.h";

namespace mozilla {
namespace dom {

struct MessagePortIdentifier
{
  nsID uuid;
  nsID destinationUuid;
  uint32_t sequenceId;
  bool neutered;
};

/**
 * Cross-process representation for postMessage() style payloads where Blobs may
 * be referenced/"cloned" and (optionally) messageports transferred.  Use
 * StructuredCloneData in your code to convert between this wire representation
 * and the StructuredCloneData StructuredCloneHolder-subclass.
 */
struct ClonedMessageData
{
  SerializedStructuredCloneBuffer data;
  IPCBlob[] blobs;
  IPCStream[] inputStreams;
  MessagePortIdentifier[] identifiers;
};

struct ErrorMessageData {
};

union ClonedOrErrorMessageData {
  ClonedMessageData;
  ErrorMessageData;
};

struct RefMessageData {
  nsID uuid;
};

union MessageDataType {
  ClonedMessageData;
  RefMessageData;
};

struct MessageData {
  nsID? agentClusterId;
  MessageDataType data;
};

struct ScreenDetails {
  LayoutDeviceIntRect rect;
  DesktopIntRect rectDisplayPix;
  LayoutDeviceIntRect availRect;
  DesktopIntRect availRectDisplayPix;
  int32_t pixelDepth;
  int32_t colorDepth;
  uint32_t refreshRate; // In Hz, or 0 if not known.
  DesktopToLayoutDeviceScale contentsScaleFactor;
  CSSToLayoutDeviceScale defaultCSSScaleFactor;
  float dpi;
  ScreenOrientation orientation;
  uint16_t orientationAngle;
  bool isPseudoDisplay;
};

struct DimensionInfo
{
  CSSRect rect;
  CSSSize size;
  LayoutDeviceIntPoint clientOffset;
  LayoutDeviceIntPoint chromeOffset;
};

struct FrameScriptInfo
{
  nsString url;
  bool runInGlobalScope;
};

struct FeaturePolicyInfo
{
  nsString[]   inheritedDeniedFeatureNames;
  nsString[]   attributeEnabledFeatureNames;
  nsString     declaredString;
  nullable nsIPrincipal defaultOrigin;
  nullable nsIPrincipal selfOrigin;
  nullable nsIPrincipal srcOrigin;
};

/**
 * The information required to complete a window creation request.
 */
struct CreatedWindowInfo
{
  nsresult rv;
  bool windowOpened;
  FrameScriptInfo[] frameScripts;
  uint32_t maxTouchPoints;
  DimensionInfo dimensions;
};


/**
 * PerformanceInfo is used to pass performance info stored
 * in WorkerPrivate and DocGroup instances, as well as
 * memory-related information.
 *
 * Each (host, pid, windowId) is unique to a given DocGroup or
 * Worker, and we collect the number of dispatches per Dispatch
 * category and total execution duration as well as the current
 * Zone JS Heap usage.
 *
 * This IPDL struct reflects the data collected in Performance counters,
 * in addition of some memory usage information.
 *
 * see xpcom/threads/PerformanceCounter.h
 */

struct MediaMemoryInfo {
  uint64_t audioSize;
  uint64_t videoSize;
  uint64_t resourcesSize;
};

struct PerformanceMemoryInfo {
  MediaMemoryInfo media;
  uint64_t domDom;
  uint64_t domStyle;
  uint64_t domOther;
  uint64_t jsMemUsage;
};

struct CategoryDispatch
{
  // DispatchCategory value
  uint16_t category;
  // Number of dispatch
  uint16_t count;
};

struct PerformanceInfo
{
  // Host of the document, if any
  nsCString host;
  // process id
  uint32_t pid;
  // window id
  uint64_t windowId;
  // Execution time in microseconds
  uint64_t duration;
  // Counter ID (unique across processes)
  uint64_t counterId;
  // True if the data is collected in a worker
  bool isWorker;
  // True if the document window is the top window
  bool isTopLevel;
  // Memory
  PerformanceMemoryInfo memory;
  // Counters per category. For workers, a single entry
  CategoryDispatch[] items;
};

struct DocShellLoadStateInit
{
  nullable nsIURI URI;
  nullable nsIURI OriginalURI;
  nullable nsIURI ResultPrincipalURI;
  nullable nsIPrincipal TriggeringPrincipal;
  nullable nsIReferrerInfo ReferrerInfo;
  nullable nsIPrincipal PrincipalToInherit;
  nullable nsIPrincipal PartitionedPrincipalToInherit;
  nullable nsIURI BaseURI;
  // The Content Security Policy of the load, that is, the CSP of the entity
  // responsible for causing the load to occur. Most likely this is the CSP
  // of the document that started the load. In case the entity starting the
  // load did not use a CSP, then Csp can be null. Please note that this is
  // also the CSP that will be applied to the load in case the load
  // encounters a server side redirect.
  nullable nsIContentSecurityPolicy Csp;
  nullable nsIInputStream PostDataStream;
  nullable nsIInputStream HeadersStream;
  nullable nsIURI UnstrippedURI;
  uint64_t LoadIdentifier;
  nsString Target;
  nsCString TypeHint;
  nsString FileName;

  MaybeDiscardedBrowsingContext SourceBrowsingContext;
  MaybeDiscardedBrowsingContext TargetBrowsingContext;

  // The provided remote type of the process responsible for causing the load to
  // occur. Validated in the parent process.
  nsCString TriggeringRemoteType;

  nsString SrcdocData; // useless without sourcedocshell

  nsCString? OriginalURIString;

  nsCString? RemoteTypeOverride;

  LoadingSessionHistoryInfo? loadingSessionHistoryInfo;

  uint32_t LoadType;
  uint32_t LoadFlags;
  uint32_t InternalLoadFlags;
  
  // The TriggineringSandboxFlags are the SandboxFlags of the entity
  // responsible for causing the load to occur.
  uint32_t TriggeringSandboxFlags;
  int32_t? CancelContentJSEpoch;

  bool ResultPrincipalURIIsSome;
  bool KeepResultPrincipalURIIfSet;
  bool LoadReplace;
  bool InheritPrincipal;
  bool PrincipalIsExplicit;
  bool ForceAllowDataURI;
  bool IsExemptFromHTTPSOnlyMode;
  bool OriginalFrameSrc;
  bool IsFormSubmission;
  bool FirstParty;
  bool HasValidUserGestureActivation;
  bool AllowFocusMove;
  bool IsFromProcessingFrameAttributes;

  // Fields missing due to lack of need or serialization
  // nsCOMPtr<nsIDocShell> mSourceDocShell;
  // bool mIsSrcDocLoad; // useless without sourcedocshell
  // nsIChannel pendingRedirectedChannel; // sent through other mechanism

  bool ChannelInitialized;

  bool TryToReplaceWithSessionHistoryLoad;

  bool IsMetaRefresh;
};

struct TimedChannelInfo
{
  bool timingEnabled;
  int8_t redirectCount;
  int8_t internalRedirectCount;
  TimeStamp asyncOpen;
  TimeStamp channelCreation;
  TimeStamp redirectStart;
  TimeStamp redirectEnd;
  nsString initiatorType;
  bool allRedirectsSameOrigin;
  bool allRedirectsPassTimingAllowCheck;
  bool? timingAllowCheckForPrincipal;
  TimeStamp launchServiceWorkerStart;
  TimeStamp launchServiceWorkerEnd;
  TimeStamp dispatchFetchEventStart;
  TimeStamp dispatchFetchEventEnd;
  TimeStamp handleFetchEventStart;
  TimeStamp handleFetchEventEnd;
  TimeStamp responseStart;
  TimeStamp responseEnd;
};

struct ReplacementChannelConfigInit
{
  uint32_t redirectFlags;
  ClassOfService classOfService;
  bool? privateBrowsing;
  nsCString? method;
  nullable nsIReferrerInfo referrerInfo;
  TimedChannelInfo? timedChannelInfo;
  nullable RemoteLazyInputStream uploadStream;
  uint64_t uploadStreamLength;
  bool uploadStreamHasHeaders;
  nsCString? contentType;
  nsCString? contentLength;
};

union IPDLVariantValue
{
  bool;
  uint8_t;   // In practice, uint8_t and uint16_t are likely unneeded,
  int16_t;   // as signed->unsigned->signed has universal behavior.
  uint16_t;  // but those conversions are only guaranteed in C++20.
  int32_t;
  uint32_t;
  float;
  double;
  nsID;
  nsString;
  nsCString;
  nullable nsIURI;
  nullable nsIPrincipal;
};

struct IDPLVariant
{
  uint32_t type;  // We explicitly store the original nsIVariant type so that
                  // the conversion back into a nsVariant later is lossless.
  IPDLVariantValue data;
};

struct IPDLProperty
{
  nsString name;
  nullable nsIVariant value;
};

// Struct with information to show a frame from the parent process.
struct ParentShowInfo
{
  nsString name;
  bool fakeShowInfo;
  bool isTransparent;
  float dpi;
  int32_t widgetRounding;
  double defaultScale;
};

// Struct with information to show an iframe from the process that owns the
// frame.
struct OwnerShowInfo {
  // This can be an IntSize rather than a Rect because content processes always
  // render to a virtual <0, 0> top-left point.
  ScreenIntSize size;

  // TODO(emilio): Margin preferences go here.
  ScrollbarPreference scrollbarPreference;

  // TODO(emilio): I think we should really be able to figure this out from the
  // parent process too instead.
  nsSizeMode sizeMode;
};

} // namespace dom
} // namespace mozilla