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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2             :  *
       3             :  * This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #include "WebBrowserPersistResourcesChild.h"
       8             : 
       9             : #include "WebBrowserPersistDocumentChild.h"
      10             : #include "mozilla/dom/ContentChild.h"
      11             : 
      12             : namespace mozilla {
      13             : 
      14           0 : NS_IMPL_ISUPPORTS(WebBrowserPersistResourcesChild,
      15             :                   nsIWebBrowserPersistResourceVisitor)
      16             : 
      17           0 : WebBrowserPersistResourcesChild::WebBrowserPersistResourcesChild()
      18             : {
      19           0 : }
      20             : 
      21             : WebBrowserPersistResourcesChild::~WebBrowserPersistResourcesChild() = default;
      22             : 
      23             : NS_IMETHODIMP
      24           0 : WebBrowserPersistResourcesChild::VisitResource(nsIWebBrowserPersistDocument *aDocument,
      25             :                                                const nsACString& aURI)
      26             : {
      27           0 :     nsCString copiedURI(aURI); // Yay, XPIDL/IPDL mismatch.
      28           0 :     SendVisitResource(copiedURI);
      29           0 :     return NS_OK;
      30             : }
      31             : 
      32             : NS_IMETHODIMP
      33           0 : WebBrowserPersistResourcesChild::VisitDocument(nsIWebBrowserPersistDocument* aDocument,
      34             :                                                nsIWebBrowserPersistDocument* aSubDocument)
      35             : {
      36           0 :     auto* subActor = new WebBrowserPersistDocumentChild();
      37             :     // As a consequence of how PWebBrowserPersistDocumentConstructor
      38             :     // can be sent by both the parent and the child, we must pass the
      39             :     // aBrowser and outerWindowID arguments here, but the values are
      40             :     // ignored by the parent.  In particular, the TabChild in which
      41             :     // persistence started does not necessarily exist at this point;
      42             :     // see bug 1203602.
      43           0 :     if (!Manager()->Manager()
      44           0 :         ->SendPWebBrowserPersistDocumentConstructor(subActor, nullptr, 0)) {
      45             :         // NOTE: subActor is freed at this point.
      46           0 :         return NS_ERROR_FAILURE;
      47             :     }
      48             :     // ...but here, IPC won't free subActor until after this returns
      49             :     // to the event loop.
      50             : 
      51             :     // The order of these two messages will be preserved, because
      52             :     // they're the same toplevel protocol and priority.
      53             :     //
      54             :     // With this ordering, it's always the transition out of START
      55             :     // state that causes a document's parent actor to be exposed to
      56             :     // XPCOM (for both parent->child and child->parent construction),
      57             :     // which simplifies the lifetime management.
      58           0 :     SendVisitDocument(subActor);
      59           0 :     subActor->Start(aSubDocument);
      60           0 :     return NS_OK;
      61             : }
      62             : 
      63             : NS_IMETHODIMP
      64           0 : WebBrowserPersistResourcesChild::EndVisit(nsIWebBrowserPersistDocument *aDocument,
      65             :                                           nsresult aStatus)
      66             : {
      67           0 :     Send__delete__(this, aStatus);
      68           0 :     return NS_OK;
      69             : }
      70             : 
      71             : } // namespace mozilla