/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-

 *

 * 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 "WebBrowserPersistResourcesChild.h"

#include "WebBrowserPersistDocumentChild.h"

#include "mozilla/dom/ContentChild.h"

namespace mozilla {

NS_IMPL_ISUPPORTS(WebBrowserPersistResourcesChild,

                  nsIWebBrowserPersistResourceVisitor)

WebBrowserPersistResourcesChild::WebBrowserPersistResourcesChild()

{

}

WebBrowserPersistResourcesChild::~WebBrowserPersistResourcesChild() = default;

NS_IMETHODIMP

WebBrowserPersistResourcesChild::VisitResource(nsIWebBrowserPersistDocument *aDocument,

                                               const nsACString& aURI)

{

    nsCString copiedURI(aURI); // Yay, XPIDL/IPDL mismatch.

    SendVisitResource(copiedURI);

    return NS_OK;

}

NS_IMETHODIMP

WebBrowserPersistResourcesChild::VisitDocument(nsIWebBrowserPersistDocument* aDocument,

                                               nsIWebBrowserPersistDocument* aSubDocument)

{

    auto* subActor = new WebBrowserPersistDocumentChild();

    // As a consequence of how PWebBrowserPersistDocumentConstructor

    // can be sent by both the parent and the child, we must pass the

    // aBrowser and outerWindowID arguments here, but the values are

    // ignored by the parent.  In particular, the TabChild in which

    // persistence started does not necessarily exist at this point;

    // see bug 1203602.

    if (!Manager()->Manager()

        ->SendPWebBrowserPersistDocumentConstructor(subActor, nullptr, 0)) {

        // NOTE: subActor is freed at this point.

        return NS_ERROR_FAILURE;

    }

    // ...but here, IPC won't free subActor until after this returns

    // to the event loop.

    // The order of these two messages will be preserved, because

    // they're the same toplevel protocol and priority.

    //

    // With this ordering, it's always the transition out of START

    // state that causes a document's parent actor to be exposed to

    // XPCOM (for both parent->child and child->parent construction),

    // which simplifies the lifetime management.

    SendVisitDocument(subActor);

    subActor->Start(aSubDocument);

    return NS_OK;

}

NS_IMETHODIMP

WebBrowserPersistResourcesChild::EndVisit(nsIWebBrowserPersistDocument *aDocument,

                                          nsresult aStatus)

{

    Send__delete__(this, aStatus);

    return NS_OK;

}

} // namespace mozilla