mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 21:55:31 +00:00
114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "nsIGlobalObject.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsHostObjectProtocolHandler.h"
|
|
|
|
nsIGlobalObject::~nsIGlobalObject()
|
|
{
|
|
UnlinkHostObjectURIs();
|
|
}
|
|
|
|
nsIPrincipal*
|
|
nsIGlobalObject::PrincipalOrNull()
|
|
{
|
|
JSObject *global = GetGlobalJSObject();
|
|
if (NS_WARN_IF(!global))
|
|
return nullptr;
|
|
|
|
return nsContentUtils::ObjectPrincipal(global);
|
|
}
|
|
|
|
void
|
|
nsIGlobalObject::RegisterHostObjectURI(const nsACString& aURI)
|
|
{
|
|
MOZ_ASSERT(!mHostObjectURIs.Contains(aURI));
|
|
mHostObjectURIs.AppendElement(aURI);
|
|
}
|
|
|
|
void
|
|
nsIGlobalObject::UnregisterHostObjectURI(const nsACString& aURI)
|
|
{
|
|
mHostObjectURIs.RemoveElement(aURI);
|
|
}
|
|
|
|
namespace {
|
|
|
|
class UnlinkHostObjectURIsRunnable final : public mozilla::Runnable
|
|
{
|
|
public:
|
|
explicit UnlinkHostObjectURIsRunnable(nsTArray<nsCString>& aURIs)
|
|
{
|
|
mURIs.SwapElements(aURIs);
|
|
}
|
|
|
|
NS_IMETHOD Run() override
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
for (uint32_t index = 0; index < mURIs.Length(); ++index) {
|
|
nsHostObjectProtocolHandler::RemoveDataEntry(mURIs[index]);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
~UnlinkHostObjectURIsRunnable() {}
|
|
|
|
nsTArray<nsCString> mURIs;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
void
|
|
nsIGlobalObject::UnlinkHostObjectURIs()
|
|
{
|
|
if (mHostObjectURIs.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
if (NS_IsMainThread()) {
|
|
for (uint32_t index = 0; index < mHostObjectURIs.Length(); ++index) {
|
|
nsHostObjectProtocolHandler::RemoveDataEntry(mHostObjectURIs[index]);
|
|
}
|
|
|
|
mHostObjectURIs.Clear();
|
|
return;
|
|
}
|
|
|
|
// nsHostObjectProtocolHandler is main-thread only.
|
|
|
|
RefPtr<UnlinkHostObjectURIsRunnable> runnable =
|
|
new UnlinkHostObjectURIsRunnable(mHostObjectURIs);
|
|
MOZ_ASSERT(mHostObjectURIs.IsEmpty());
|
|
|
|
nsresult rv = NS_DispatchToMainThread(runnable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to dispatch a runnable to the main-thread.");
|
|
}
|
|
}
|
|
|
|
void
|
|
nsIGlobalObject::TraverseHostObjectURIs(nsCycleCollectionTraversalCallback &aCb)
|
|
{
|
|
if (mHostObjectURIs.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
// Currently we only store BlobImpl objects off the the main-thread and they
|
|
// are not CCed.
|
|
if (!NS_IsMainThread()) {
|
|
return;
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mHostObjectURIs.Length(); ++index) {
|
|
nsHostObjectProtocolHandler::Traverse(mHostObjectURIs[index], aCb);
|
|
}
|
|
}
|