зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.4 KiB
C++
68 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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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#include "WebBrowserPersistResourcesChild.h"
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#include "WebBrowserPersistDocumentChild.h"
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namespace mozilla {
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NS_IMPL_ISUPPORTS(WebBrowserPersistResourcesChild,
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nsIWebBrowserPersistResourceVisitor)
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WebBrowserPersistResourcesChild::WebBrowserPersistResourcesChild() {}
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WebBrowserPersistResourcesChild::~WebBrowserPersistResourcesChild() = default;
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NS_IMETHODIMP
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WebBrowserPersistResourcesChild::VisitResource(
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nsIWebBrowserPersistDocument* aDocument, const nsACString& aURI,
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nsContentPolicyType aContentPolicyType) {
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nsCString copiedURI(aURI); // Yay, XPIDL/IPDL mismatch.
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SendVisitResource(copiedURI, aContentPolicyType);
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return NS_OK;
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}
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NS_IMETHODIMP
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WebBrowserPersistResourcesChild::VisitDocument(
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nsIWebBrowserPersistDocument* aDocument,
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nsIWebBrowserPersistDocument* aSubDocument) {
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auto* subActor = new WebBrowserPersistDocumentChild();
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// As a consequence of how PWebBrowserPersistDocumentConstructor
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// can be sent by both the parent and the child, we must pass the
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// aBrowser and outerWindowID arguments here, but the values are
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// ignored by the parent. In particular, the TabChild in which
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// persistence started does not necessarily exist at this point;
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// see bug 1203602.
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if (!Manager()->Manager()->SendPWebBrowserPersistDocumentConstructor(
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subActor, nullptr, 0)) {
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// NOTE: subActor is freed at this point.
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return NS_ERROR_FAILURE;
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}
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// ...but here, IPC won't free subActor until after this returns
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// to the event loop.
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// The order of these two messages will be preserved, because
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// they're the same toplevel protocol and priority.
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//
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// With this ordering, it's always the transition out of START
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// state that causes a document's parent actor to be exposed to
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// XPCOM (for both parent->child and child->parent construction),
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// which simplifies the lifetime management.
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SendVisitDocument(subActor);
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subActor->Start(aSubDocument);
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return NS_OK;
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}
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NS_IMETHODIMP
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WebBrowserPersistResourcesChild::EndVisit(
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nsIWebBrowserPersistDocument* aDocument, nsresult aStatus) {
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Send__delete__(this, aStatus);
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return NS_OK;
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}
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} // namespace mozilla
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