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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ | 5 #ifndef CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |
| 6 #define CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ | 6 #define CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |
| 7 | 7 |
| 8 #include <windows.h> | 8 #include <windows.h> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
| 11 #include "base/memory/singleton.h" | 11 #include "base/memory/singleton.h" |
| 12 #include "ipc/ipc_channel_proxy.h" | 12 #include "ipc/ipc_channel_proxy.h" |
| 13 | 13 |
| 14 namespace content { |
| 15 |
| 14 // Dispatches messages used for font caching on Windows. This is needed because | 16 // Dispatches messages used for font caching on Windows. This is needed because |
| 15 // Windows can't load fonts into its kernel cache in sandboxed processes. So the | 17 // Windows can't load fonts into its kernel cache in sandboxed processes. So the |
| 16 // sandboxed process asks the browser process to do this for it. | 18 // sandboxed process asks the browser process to do this for it. |
| 17 class FontCacheDispatcher : public IPC::ChannelProxy::MessageFilter, | 19 class FontCacheDispatcher : public IPC::ChannelProxy::MessageFilter, |
| 18 public IPC::Sender { | 20 public IPC::Sender { |
| 19 public: | 21 public: |
| 20 FontCacheDispatcher(); | 22 FontCacheDispatcher(); |
| 21 virtual ~FontCacheDispatcher(); | 23 virtual ~FontCacheDispatcher(); |
| 22 | 24 |
| 23 // IPC::Sender implementation: | 25 // IPC::Sender implementation: |
| 24 virtual bool Send(IPC::Message* message) OVERRIDE; | 26 virtual bool Send(IPC::Message* message) OVERRIDE; |
| 25 | 27 |
| 26 private: | 28 private: |
| 27 // IPC::ChannelProxy::MessageFilter implementation: | 29 // IPC::ChannelProxy::MessageFilter implementation: |
| 28 virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE; | 30 virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE; |
| 29 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 31 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| 30 virtual void OnChannelClosing() OVERRIDE; | 32 virtual void OnChannelClosing() OVERRIDE; |
| 31 | 33 |
| 32 // Message handlers. | 34 // Message handlers. |
| 33 void OnPreCacheFont(const LOGFONT& font); | 35 void OnPreCacheFont(const LOGFONT& font); |
| 34 void OnReleaseCachedFonts(); | 36 void OnReleaseCachedFonts(); |
| 35 | 37 |
| 36 IPC::Channel* channel_; | 38 IPC::Channel* channel_; |
| 37 | 39 |
| 38 DISALLOW_COPY_AND_ASSIGN(FontCacheDispatcher); | 40 DISALLOW_COPY_AND_ASSIGN(FontCacheDispatcher); |
| 39 }; | 41 }; |
| 40 | 42 |
| 43 } // namespace content |
| 44 |
| 41 #endif // CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ | 45 #endif // CONTENT_COMMON_FONT_CACHE_DISPATCHER_WIN_H_ |
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