зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
3.3 KiB
C++
109 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_PostMessageEvent_h
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#define mozilla_dom_PostMessageEvent_h
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#include "js/StructuredClone.h"
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#include "nsCOMPtr.h"
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#include "nsRefPtr.h"
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#include "nsTArray.h"
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class nsGlobalWindow;
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class nsIPrincipal;
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namespace mozilla {
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namespace dom {
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class MessagePortBase;
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class MessagePortIdentifier;
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/**
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* Class used to represent events generated by calls to Window.postMessage,
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* which asynchronously creates and dispatches events.
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*/
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class PostMessageEvent final : public nsRunnable
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{
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public:
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NS_DECL_NSIRUNNABLE
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PostMessageEvent(nsGlobalWindow* aSource,
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const nsAString& aCallerOrigin,
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nsGlobalWindow* aTargetWindow,
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nsIPrincipal* aProvidedPrincipal,
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bool aTrustedCaller);
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bool Write(JSContext* aCx, JS::Handle<JS::Value> aMessage,
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JS::Handle<JS::Value> aTransfer, bool aSubsumes,
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nsPIDOMWindow* aWindow);
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private:
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~PostMessageEvent();
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const MessagePortIdentifier& GetPortIdentifier(uint64_t aId);
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MessagePortIdentifier* NewPortIdentifier(uint64_t* aPosition);
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bool StoreISupports(nsISupports* aSupports)
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{
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mSupportsArray.AppendElement(aSupports);
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return true;
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}
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static JSObject*
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ReadStructuredClone(JSContext* cx,
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JSStructuredCloneReader* reader,
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uint32_t tag,
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uint32_t data,
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void* closure);
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static bool
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WriteStructuredClone(JSContext* cx,
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JSStructuredCloneWriter* writer,
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JS::Handle<JSObject*> obj,
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void *closure);
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static bool
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ReadTransferStructuredClone(JSContext* aCx,
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JSStructuredCloneReader* reader,
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uint32_t tag, void* aData,
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uint64_t aExtraData,
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void* aClosure,
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JS::MutableHandle<JSObject*> returnObject);
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static bool
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TransferStructuredClone(JSContext* aCx,
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JS::Handle<JSObject*> aObj,
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void* aClosure,
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uint32_t* aTag,
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JS::TransferableOwnership* aOwnership,
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void** aContent,
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uint64_t* aExtraData);
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static void
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FreeTransferStructuredClone(uint32_t aTag,
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JS::TransferableOwnership aOwnership,
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void *aContent,
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uint64_t aExtraData,
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void* aClosure);
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static const JSStructuredCloneCallbacks sPostMessageCallbacks;
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JSAutoStructuredCloneBuffer mBuffer;
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nsRefPtr<nsGlobalWindow> mSource;
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nsString mCallerOrigin;
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nsRefPtr<nsGlobalWindow> mTargetWindow;
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nsCOMPtr<nsIPrincipal> mProvidedPrincipal;
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bool mTrustedCaller;
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nsTArray<nsCOMPtr<nsISupports>> mSupportsArray;
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nsTArray<MessagePortIdentifier> mPortIdentifiers;
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};
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} // dom namespace
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} // mozilla namespace
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#endif // mozilla_dom_PostMessageEvent_h
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