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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef _mozilla_dom_ClientSource_h
#define _mozilla_dom_ClientSource_h
#include "mozilla/dom/ClientInfo.h"
#include "mozilla/dom/ClientOpPromise.h"
#include "mozilla/dom/ClientThing.h"
#include "mozilla/dom/ServiceWorkerDescriptor.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/Variant.h"
#ifdef XP_WIN
# undef PostMessage
#endif
class nsIContentSecurityPolicy;
class nsIDocShell;
class nsIGlobalObject;
class nsISerialEventTarget;
class nsPIDOMWindowInner;
namespace mozilla {
class ErrorResult;
namespace dom {
class ClientControlledArgs;
class ClientFocusArgs;
class ClientGetInfoAndStateArgs;
class ClientManager;
class ClientPostMessageArgs;
class ClientSourceChild;
class ClientSourceConstructorArgs;
class ClientSourceExecutionReadyArgs;
class ClientState;
class ClientWindowState;
class PClientManagerChild;
class WorkerPrivate;
// ClientSource is an RAII style class that is designed to be held via
// a UniquePtr<>. When created ClientSource will register the existence
// of a client in the cross-process ClientManagerService. When the
// ClientSource is destroyed then client entry will be removed. Code
// that represents globals or browsing environments, such as nsGlobalWindow
// or WorkerPrivate, should use ClientManager to create a ClientSource.
class ClientSource final : public ClientThing<ClientSourceChild> {
friend class ClientManager;
NS_DECL_OWNINGTHREAD
RefPtr<ClientManager> mManager;
nsCOMPtr<nsISerialEventTarget> mEventTarget;
Variant<Nothing, RefPtr<nsPIDOMWindowInner>, nsCOMPtr<nsIDocShell>,
WorkerPrivate*>
mOwner;
ClientInfo mClientInfo;
Maybe<ServiceWorkerDescriptor> mController;
Maybe<nsCOMPtr<nsIPrincipal>> mPrincipal;
// Contained a de-duplicated list of ServiceWorker scope strings
// for which this client has called navigator.serviceWorker.register().
// Typically there will be either be zero or one scope strings, but
// there could be more. We keep this list until the client is closed.
AutoTArray<nsCString, 1> mRegisteringScopeList;
void Shutdown();
void ExecutionReady(const ClientSourceExecutionReadyArgs& aArgs);
WorkerPrivate* GetWorkerPrivate() const;
nsIDocShell* GetDocShell() const;
nsIGlobalObject* GetGlobal() const;
Result<bool, ErrorResult> MaybeCreateInitialDocument();
Result<ClientState, ErrorResult> SnapshotWindowState();
// Private methods called by ClientManager
ClientSource(ClientManager* aManager, nsISerialEventTarget* aEventTarget,
const ClientSourceConstructorArgs& aArgs);
void Activate(PClientManagerChild* aActor);
public:
~ClientSource();
nsPIDOMWindowInner* GetInnerWindow() const;
void WorkerExecutionReady(WorkerPrivate* aWorkerPrivate);
nsresult WindowExecutionReady(nsPIDOMWindowInner* aInnerWindow);
nsresult DocShellExecutionReady(nsIDocShell* aDocShell);
void Freeze();
void Thaw();
void EvictFromBFCache();
RefPtr<ClientOpPromise> EvictFromBFCacheOp();
const ClientInfo& Info() const;
// Trigger a synchronous IPC ping to the parent process to confirm that
// the ClientSource actor has been created. This should only be used
// by the WorkerPrivate startup code to deal with a ClientHandle::Control()
// call racing on the main thread. Do not call this in other circumstances!
void WorkerSyncPing(WorkerPrivate* aWorkerPrivate);
// Synchronously mark the ClientSource as controlled by the given service
// worker. This can happen as a result of a remote operation or directly
// by local code. For example, if a client's initial network load is
// intercepted by a controlling service worker then this should be called
// immediately.
//
// Note, there is no way to clear the controlling service worker because
// the specification does not allow that operation.
void SetController(const ServiceWorkerDescriptor& aServiceWorker);
// Mark the ClientSource as controlled using the remote operation arguments.
// This will in turn call SetController().
RefPtr<ClientOpPromise> Control(const ClientControlledArgs& aArgs);
// Inherit the controller from a local parent client. This requires both
// setting our immediate controller field and also updating the parent-side
// data structure.
void InheritController(const ServiceWorkerDescriptor& aServiceWorker);
// Get the ClientSource's current controlling service worker, if one has
// been set.
const Maybe<ServiceWorkerDescriptor>& GetController() const;
// Note that the client has reached DOMContentLoaded. Only applies to window
// clients.
void NoteDOMContentLoaded();
// TODO: Convert Focus() to MOZ_CAN_RUN_SCRIPT
MOZ_CAN_RUN_SCRIPT_BOUNDARY RefPtr<ClientOpPromise> Focus(
const ClientFocusArgs& aArgs);
RefPtr<ClientOpPromise> PostMessage(const ClientPostMessageArgs& aArgs);
RefPtr<ClientOpPromise> GetInfoAndState(
const ClientGetInfoAndStateArgs& aArgs);
Result<ClientState, ErrorResult> SnapshotState();
nsISerialEventTarget* EventTarget() const;
void SetCsp(nsIContentSecurityPolicy* aCsp);
void SetPreloadCsp(nsIContentSecurityPolicy* aPreloadCSP);
void SetCspInfo(const mozilla::ipc::CSPInfo& aCSPInfo);
const Maybe<mozilla::ipc::CSPInfo>& GetCspInfo();
void SetAgentClusterId(const nsID& aId) {
mClientInfo.SetAgentClusterId(aId);
}
void Traverse(nsCycleCollectionTraversalCallback& aCallback,
const char* aName, uint32_t aFlags);
void NoteCalledRegisterForServiceWorkerScope(const nsACString& aScope);
bool CalledRegisterForServiceWorkerScope(const nsACString& aScope);
nsIPrincipal* GetPrincipal();
};
inline void ImplCycleCollectionUnlink(UniquePtr<ClientSource>& aField) {
aField.reset();
}
inline void ImplCycleCollectionTraverse(
nsCycleCollectionTraversalCallback& aCallback,
UniquePtr<ClientSource>& aField, const char* aName, uint32_t aFlags) {
if (aField) {
aField->Traverse(aCallback, aName, aFlags);
}
}
} // namespace dom
} // namespace mozilla
#endif // _mozilla_dom_ClientSource_h
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