forked from mirrors/gecko-dev
f9d8db28af
Backed out changeset bfe390ad771b (bug 1583251) Backed out changeset 0113c698b44d (bug 1583251) Backed out changeset 248ad59168dd (bug 1583251) Backed out changeset 5d5e3dc17118 (bug 1583251) Backed out changeset 9e9eaa78c436 (bug 1583251)
105 lines
4.1 KiB
C++
105 lines
4.1 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 "mozilla/dom/Event.h"
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#include "mozilla/dom/ipc/StructuredCloneData.h"
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#include "mozilla/dom/StructuredCloneHolder.h"
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#include "nsCOMPtr.h"
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#include "mozilla/MaybeOneOf.h"
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#include "mozilla/RefPtr.h"
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#include "nsContentUtils.h"
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#include "nsTArray.h"
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#include "nsThreadUtils.h"
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class nsGlobalWindowOuter;
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class nsGlobalWindowInner;
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class nsIPrincipal;
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namespace mozilla {
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namespace dom {
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class BrowsingContext;
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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 Runnable {
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public:
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NS_DECL_NSIRUNNABLE
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// aCallerWindowID should not be 0.
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PostMessageEvent(BrowsingContext* aSource, const nsAString& aCallerOrigin,
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nsGlobalWindowOuter* aTargetWindow,
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nsIPrincipal* aProvidedPrincipal, uint64_t aCallerWindowID,
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nsIURI* aCallerDocumentURI)
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: PostMessageEvent(aSource, aCallerOrigin, aTargetWindow,
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aProvidedPrincipal, Some(aCallerWindowID),
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aCallerDocumentURI, false) {}
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// To be used if there is no WindowID for the PostMessage caller's window (for
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// example because it lives in a different process).
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PostMessageEvent(BrowsingContext* aSource, const nsAString& aCallerOrigin,
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nsGlobalWindowOuter* aTargetWindow,
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nsIPrincipal* aProvidedPrincipal, nsIURI* aCallerDocumentURI,
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bool aIsFromPrivateWindow)
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: PostMessageEvent(aSource, aCallerOrigin, aTargetWindow,
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aProvidedPrincipal, Nothing(), aCallerDocumentURI,
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aIsFromPrivateWindow) {}
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void Write(JSContext* aCx, JS::Handle<JS::Value> aMessage,
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JS::Handle<JS::Value> aTransfer, JS::CloneDataPolicy aClonePolicy,
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ErrorResult& aError) {
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mHolder.construct<StructuredCloneHolder>(
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StructuredCloneHolder::CloningSupported,
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StructuredCloneHolder::TransferringSupported,
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JS::StructuredCloneScope::SameProcessSameThread);
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mHolder.ref<StructuredCloneHolder>().Write(aCx, aMessage, aTransfer,
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aClonePolicy, aError);
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}
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void UnpackFrom(const ClonedMessageData& aMessageData) {
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mHolder.construct<ipc::StructuredCloneData>();
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// FIXME Want to steal!
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1516349.
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mHolder.ref<ipc::StructuredCloneData>().CopyFromClonedMessageDataForChild(
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aMessageData);
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}
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private:
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PostMessageEvent(BrowsingContext* aSource, const nsAString& aCallerOrigin,
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nsGlobalWindowOuter* aTargetWindow,
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nsIPrincipal* aProvidedPrincipal,
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const Maybe<uint64_t>& aCallerWindowID,
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nsIURI* aCallerDocumentURI, bool aIsFromPrivateWindow);
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~PostMessageEvent();
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void Dispatch(nsGlobalWindowInner* aTargetWindow, Event* aEvent);
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void DispatchError(JSContext* aCx, nsGlobalWindowInner* aTargetWindow,
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mozilla::dom::EventTarget* aEventTarget);
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RefPtr<BrowsingContext> mSource;
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nsString mCallerOrigin;
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RefPtr<nsGlobalWindowOuter> mTargetWindow;
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nsCOMPtr<nsIPrincipal> mProvidedPrincipal;
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// If the postMessage call was made on a WindowProxy whose Window lives in a
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// separate process then mHolder will contain a StructuredCloneData, else
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// it'll contain a StructuredCloneHolder.
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MaybeOneOf<StructuredCloneHolder, ipc::StructuredCloneData> mHolder;
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Maybe<uint64_t> mCallerWindowID;
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nsCOMPtr<nsIURI> mCallerDocumentURI;
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// This is only set to a relevant value if mCallerWindowID doesn't contain a
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// value.
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bool mIsFromPrivateWindow;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_PostMessageEvent_h
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