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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 PPAPI_CPP_DEV_RESOURCE_ARRAY_DEV_H_ | |
| 6 #define PPAPI_CPP_DEV_RESOURCE_ARRAY_DEV_H_ | |
| 7 | |
| 8 #include "ppapi/c/pp_array_output.h" | |
| 9 #include "ppapi/c/pp_completion_callback.h" | |
| 10 #include "ppapi/c/pp_stdint.h" | |
| 11 #include "ppapi/cpp/resource.h" | |
| 12 | |
| 13 namespace pp { | |
| 14 | |
| 15 class InstanceHandle; | |
| 16 | |
| 17 class ResourceArray_Dev : public Resource { | |
| 18 public: | |
| 19 // Heap-allocated data passed to ArrayOutputCallbackConverter(). Please see | |
| 20 // the comment of ArrayOutputCallbackConverter() for more details. | |
| 21 struct ArrayOutputCallbackData { | |
| 22 ArrayOutputCallbackData(const PP_ArrayOutput& array_output, | |
| 23 const PP_CompletionCallback& callback) | |
| 24 : resource_array_output(0), | |
| 25 output(array_output), | |
| 26 original_callback(callback) { | |
| 27 } | |
| 28 | |
| 29 PP_Resource resource_array_output; | |
| 30 PP_ArrayOutput output; | |
| 31 PP_CompletionCallback original_callback; | |
| 32 }; | |
| 33 | |
| 34 ResourceArray_Dev(); | |
| 35 | |
| 36 ResourceArray_Dev(PassRef, PP_Resource resource); | |
| 37 | |
| 38 ResourceArray_Dev(const ResourceArray_Dev& other); | |
| 39 | |
| 40 ResourceArray_Dev(const InstanceHandle& instance, | |
| 41 const PP_Resource elements[], | |
| 42 uint32_t size); | |
| 43 | |
| 44 virtual ~ResourceArray_Dev(); | |
| 45 | |
| 46 ResourceArray_Dev& operator=(const ResourceArray_Dev& other); | |
| 47 | |
| 48 uint32_t size() const; | |
| 49 | |
| 50 PP_Resource operator[](uint32_t index) const; | |
| 51 | |
| 52 // This is an adapter for backward compatibility. It works with those APIs | |
| 53 // which take a PPB_ResourceArray_Dev resource as output parameter, and | |
| 54 // returns results using PP_ArrayOutput. For example: | |
| 55 // | |
| 56 // ResourceArray_Dev::ArrayOutputCallbackData* data = | |
| 57 // new ResourceArray_Dev::ArrayOutputCallbackData( | |
| 58 // pp_array_output, callback); | |
| 59 // ppb_foo->Bar( | |
| 60 // foo_resource, &data->resource_array_output, | |
| 61 // PP_MakeCompletionCallback( | |
| 62 // &ResourceArray_Dev::ArrayOutputCallbackConverter, data)); | |
| 63 // | |
| 64 // It takes a heap-allocated ArrayOutputCallbackData struct passed as the user | |
| 65 // data, and deletes it when the call completes. | |
| 66 static void ArrayOutputCallbackConverter(void* user_data, int32_t result); | |
| 67 }; | |
| 68 | |
| 69 } // namespace pp | |
| 70 | |
| 71 #endif // PPAPI_CPP_DEV_RESOURCE_ARRAY_DEV_H_ | |
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