fune/browser/components/dirprovider/DirectoryProvider.h
Kris Maglione 65c28aa0ad Bug 1484496: Part 2 - Add common base class for all nsISimpleEnumerator implementations. r=froydnj
In order to allow JS callers to use nsISimpleEnumerator instances with the JS
iteration protocol, we'll need to additional methods to every instance. Since
we currently have a large number of unrelated implementations, it would be
best if they could share the same implementation for the JS portion of the
protocol.

This patch adds a stub nsSimpleEnumerator base class, and updates all existing
implementations to inherit from it. A follow-up will add a new base interface
to this class, and implement the additional functionality required for JS
iteration.

Differential Revision: https://phabricator.services.mozilla.com/D3725

--HG--
extra : rebase_source : ad66d7b266856d5a750c772e4710679fab9434b1
extra : histedit_source : a83ebffbf2f0b191ba7de9007f73def6b9a955b8
2018-08-18 14:22:47 -07:00

50 lines
1.2 KiB
C++

/* 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/. */
#ifndef DirectoryProvider_h__
#define DirectoryProvider_h__
#include "nsIDirectoryService.h"
#include "nsComponentManagerUtils.h"
#include "nsIFile.h"
#include "nsSimpleEnumerator.h"
#include "mozilla/Attributes.h"
#define NS_BROWSERDIRECTORYPROVIDER_CONTRACTID \
"@mozilla.org/browser/directory-provider;1"
namespace mozilla {
namespace browser {
class DirectoryProvider final : public nsIDirectoryServiceProvider2
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDIRECTORYSERVICEPROVIDER
NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
private:
~DirectoryProvider() {}
class AppendingEnumerator final : public nsSimpleEnumerator
{
public:
NS_DECL_NSISIMPLEENUMERATOR
AppendingEnumerator(nsISimpleEnumerator* aBase,
char const *const *aAppendList);
private:
~AppendingEnumerator() override = default;
nsCOMPtr<nsISimpleEnumerator> mBase;
char const *const *const mAppendList;
nsCOMPtr<nsIFile> mNext;
};
};
} // namespace browser
} // namespace mozilla
#endif // DirectoryProvider_h__