ppapi/shared_impl/ppp_instance_combined.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 PPAPI_SHARED_IMPL_PPP_INSTANCE_COMBINED_H_
   6 #define PPAPI_SHARED_IMPL_PPP_INSTANCE_COMBINED_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "ppapi/c/ppp_instance.h"
  11 #include "ppapi/shared_impl/ppapi_shared_export.h"
  12
  13 namespace ppapi {
  14
  15 // This exposes the 1.1 interface and forwards it to the 1.0 interface is
  16 // necessary.
  17 struct PPAPI_SHARED_EXPORT PPP_Instance_Combined {
  18  public:
  19   // Create a PPP_Instance_Combined. Uses the given |get_interface_func| to
  20   // query the plugin and find the most recent version of the PPP_Instance
  21   // interface. If the plugin doesn't support any PPP_Instance interface,
  22   // returns NULL.
  23   static PPP_Instance_Combined* Create(
  24       base::Callback<const void*(const char*)> get_plugin_if);
  25
  26   PP_Bool DidCreate(PP_Instance instance,
  27                     uint32_t argc,
  28                     const char* argn[],
  29                     const char* argv[]);
  30   void DidDestroy(PP_Instance instance);
  31
  32   // This version of DidChangeView encapsulates all arguments for both 1.0
  33   // and 1.1 versions of this function. Conversion from 1.1 -> 1.0 is easy,
  34   // but this class doesn't have the necessary context (resource interfaces)
  35   // to do the conversion, so the caller must do it.
  36   void DidChangeView(PP_Instance instance,
  37                      PP_Resource view_changed_resource,
  38                      const struct PP_Rect* position,
  39                      const struct PP_Rect* clip);
  40
  41   void DidChangeFocus(PP_Instance instance, PP_Bool has_focus);
  42   PP_Bool HandleDocumentLoad(PP_Instance instance, PP_Resource url_loader);
  43
  44  private:
  45   explicit PPP_Instance_Combined(const PPP_Instance_1_0& instance_if);
  46   explicit PPP_Instance_Combined(const PPP_Instance_1_1& instance_if);
  47
  48   // For version 1.0, DidChangeView will be NULL, and DidChangeView_1_0 will
  49   // be set below.
  50   PPP_Instance_1_1 instance_1_1_;
  51
  52   // Non-NULL when Instance 1.0 is used.
  53   void (*did_change_view_1_0_)(PP_Instance instance,
  54                                const struct PP_Rect* position,
  55                                const struct PP_Rect* clip);
  56
  57   DISALLOW_COPY_AND_ASSIGN(PPP_Instance_Combined);
  58 };
  59
  60 }  // namespace ppapi
  61
  62 #endif  // PPAPI_SHARED_IMPL_PPP_INSTANCE_COMBINED_H_