| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |
| #define CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |
| |
| #include <windows.h> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/singleton.h" |
| #include "ipc/ipc_sender.h" |
| #include "ipc/message_filter.h" |
| |
| namespace content { |
| |
| // Dispatches messages used for font caching on Windows. This is needed because |
| // Windows can't load fonts into its kernel cache in sandboxed processes. So the |
| // sandboxed process asks the browser process to do this for it. |
| class FontCacheDispatcher : public IPC::MessageFilter, public IPC::Sender { |
| public: |
| FontCacheDispatcher(); |
| virtual ~FontCacheDispatcher(); |
| |
| // IPC::Sender implementation: |
| virtual bool Send(IPC::Message* message) OVERRIDE; |
| |
| private: |
| // IPC::MessageFilter implementation: |
| virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE; |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| virtual void OnChannelClosing() OVERRIDE; |
| |
| // Message handlers. |
| void OnPreCacheFont(const LOGFONT& font); |
| void OnReleaseCachedFonts(); |
| |
| IPC::Sender* sender_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FontCacheDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |