src/chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h

   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   int32_t OnMsgGetSequenceNumber(ppapi::host::HostMessageContext* host_context,
  65                                  uint32_t clipboard_type);
  66
  67   int32_t WriteClipboardDataItem(uint32_t format,
  68                                  const std::string& data,
  69                                  ui::ScopedClipboardWriter* scw);
  70
  71   ppapi::FlashClipboardFormatRegistry custom_formats_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(PepperFlashClipboardMessageFilter);
  74 };
  75
  76 }  // namespace chrome
  77
  78 #endif  // CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FLASH_CLIPBOARD_MESSAGE_FILTER_H_