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      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
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FLASH_CLIPBOARD_MESSAGE_FILTER_H_
      6 #define CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FLASH_CLIPBOARD_MESSAGE_FILTER_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/compiler_specific.h"
     13 #include "ppapi/host/resource_message_filter.h"
     14 #include "ppapi/shared_impl/flash_clipboard_format_registry.h"
     15 
     16 namespace ppapi {
     17 namespace host {
     18 struct HostMessageContext;
     19 }
     20 }
     21 
     22 namespace ui {
     23 class ScopedClipboardWriter;
     24 }
     25 
     26 namespace chrome {
     27 
     28 // Resource message filter for accessing the clipboard in Pepper. Pepper
     29 // supports reading/writing custom formats from the clipboard. Currently, all
     30 // custom formats that are read/written from the clipboard through pepper are
     31 // stored in a single real clipboard format (in the same way the "web custom"
     32 // clipboard formats are). This is done so that we don't have to have use real
     33 // clipboard types for each custom clipboard format which may be a limited
     34 // resource on a particular platform.
     35 class PepperFlashClipboardMessageFilter
     36     : public ppapi::host::ResourceMessageFilter {
     37  public:
     38   PepperFlashClipboardMessageFilter();
     39 
     40  protected:
     41   // ppapi::host::ResourceMessageFilter overrides.
     42   virtual scoped_refptr<base::TaskRunner> OverrideTaskRunnerForMessage(
     43       const IPC::Message& msg) OVERRIDE;
     44   virtual int32_t OnResourceMessageReceived(
     45       const IPC::Message& msg,
     46       ppapi::host::HostMessageContext* context) OVERRIDE;
     47 
     48  private:
     49   virtual ~PepperFlashClipboardMessageFilter();
     50 
     51   int32_t OnMsgRegisterCustomFormat(
     52       ppapi::host::HostMessageContext* host_context,
     53       const std::string& format_name);
     54   int32_t OnMsgIsFormatAvailable(ppapi::host::HostMessageContext* host_context,
     55                                  uint32_t clipboard_type,
     56                                  uint32_t format);
     57   int32_t OnMsgReadData(ppapi::host::HostMessageContext* host_context,
     58                         uint32_t clipoard_type,
     59                         uint32_t format);
     60   int32_t OnMsgWriteData(ppapi::host::HostMessageContext* host_context,
     61                          uint32_t clipboard_type,
     62                          const std::vector<uint32_t>& formats,
     63                          const std::vector<std::string>& data);
     64 
     65   int32_t WriteClipboardDataItem(uint32_t format,
     66                                  const std::string& data,
     67                                  ui::ScopedClipboardWriter* scw);
     68 
     69   ppapi::FlashClipboardFormatRegistry custom_formats_;
     70 
     71   DISALLOW_COPY_AND_ASSIGN(PepperFlashClipboardMessageFilter);
     72 };
     73 
     74 }  // namespace chrome
     75 
     76 #endif  // CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FLASH_CLIPBOARD_MESSAGE_FILTER_H_
     77