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-rw-r--r--embedding/components/webbrowserpersist/WebBrowserPersistResourcesChild.cpp73
1 files changed, 73 insertions, 0 deletions
diff --git a/embedding/components/webbrowserpersist/WebBrowserPersistResourcesChild.cpp b/embedding/components/webbrowserpersist/WebBrowserPersistResourcesChild.cpp
new file mode 100644
index 000000000..c28f034c8
--- /dev/null
+++ b/embedding/components/webbrowserpersist/WebBrowserPersistResourcesChild.cpp
@@ -0,0 +1,73 @@
+/* -*- 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()
+{
+}
+
+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