|  | // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #include "ppapi/cpp/dev/file_chooser_dev.h" | 
|  |  | 
|  | #include <stddef.h> | 
|  | #include <string.h> | 
|  |  | 
|  | #include "ppapi/c/dev/ppb_file_chooser_dev.h" | 
|  | #include "ppapi/c/pp_errors.h" | 
|  | #include "ppapi/cpp/completion_callback.h" | 
|  | #include "ppapi/cpp/file_ref.h" | 
|  | #include "ppapi/cpp/instance_handle.h" | 
|  | #include "ppapi/cpp/module.h" | 
|  | #include "ppapi/cpp/module_impl.h" | 
|  |  | 
|  | namespace pp { | 
|  |  | 
|  | namespace { | 
|  |  | 
|  | template <> const char* interface_name<PPB_FileChooser_Dev_0_5>() { | 
|  | return PPB_FILECHOOSER_DEV_INTERFACE_0_5; | 
|  | } | 
|  |  | 
|  | template <> const char* interface_name<PPB_FileChooser_Dev_0_6>() { | 
|  | return PPB_FILECHOOSER_DEV_INTERFACE_0_6; | 
|  | } | 
|  |  | 
|  | }  // namespace | 
|  |  | 
|  | FileChooser_Dev::FileChooser_Dev(const InstanceHandle& instance, | 
|  | PP_FileChooserMode_Dev mode, | 
|  | const Var& accept_types) { | 
|  | if (has_interface<PPB_FileChooser_Dev_0_6>()) { | 
|  | PassRefFromConstructor(get_interface<PPB_FileChooser_Dev_0_6>()->Create( | 
|  | instance.pp_instance(), mode, accept_types.pp_var())); | 
|  | } else if (has_interface<PPB_FileChooser_Dev_0_5>()) { | 
|  | PassRefFromConstructor(get_interface<PPB_FileChooser_Dev_0_5>()->Create( | 
|  | instance.pp_instance(), mode, accept_types.pp_var())); | 
|  | } | 
|  | } | 
|  |  | 
|  | FileChooser_Dev::FileChooser_Dev(const FileChooser_Dev& other) | 
|  | : Resource(other) { | 
|  | } | 
|  |  | 
|  | int32_t FileChooser_Dev::Show( | 
|  | const CompletionCallbackWithOutput< std::vector<FileRef> >& callback) { | 
|  | if (has_interface<PPB_FileChooser_Dev_0_6>()) { | 
|  | return get_interface<PPB_FileChooser_Dev_0_6>()->Show( | 
|  | pp_resource(), | 
|  | callback.output(), | 
|  | callback.pp_completion_callback()); | 
|  | } | 
|  | if (has_interface<PPB_FileChooser_Dev_0_5>()) { | 
|  | // Data for our callback wrapper. The callback handler will delete it. | 
|  | ChooseCallbackData0_5* data = new ChooseCallbackData0_5; | 
|  | data->file_chooser = pp_resource(); | 
|  | data->output = callback.output(); | 
|  | data->original_callback = callback.pp_completion_callback(); | 
|  |  | 
|  | return get_interface<PPB_FileChooser_Dev_0_5>()->Show( | 
|  | pp_resource(), PP_MakeCompletionCallback(&CallbackConverter, data)); | 
|  | } | 
|  | return callback.MayForce(PP_ERROR_NOINTERFACE); | 
|  | } | 
|  |  | 
|  | // static | 
|  | void FileChooser_Dev::CallbackConverter(void* user_data, int32_t result) { | 
|  | ChooseCallbackData0_5* data = static_cast<ChooseCallbackData0_5*>(user_data); | 
|  |  | 
|  | // Get all of the selected file resources using the iterator API. | 
|  | std::vector<PP_Resource> selected_files; | 
|  | if (result == PP_OK) { | 
|  | const PPB_FileChooser_Dev_0_5* chooser = | 
|  | get_interface<PPB_FileChooser_Dev_0_5>(); | 
|  | while (PP_Resource cur = chooser->GetNextChosenFile(data->file_chooser)) | 
|  | selected_files.push_back(cur); | 
|  | } | 
|  |  | 
|  | // Need to issue the "GetDataBuffer" even for error cases & when the | 
|  | // number of items is 0. | 
|  | void* output_buf = data->output.GetDataBuffer( | 
|  | data->output.user_data, | 
|  | static_cast<uint32_t>(selected_files.size()), sizeof(PP_Resource)); | 
|  | if (output_buf) { | 
|  | if (!selected_files.empty()) { | 
|  | memcpy(output_buf, &selected_files[0], | 
|  | sizeof(PP_Resource) * selected_files.size()); | 
|  | } | 
|  | } else { | 
|  | // Error allocating, need to free the resource IDs. | 
|  | for (size_t i = 0; i < selected_files.size(); i++) | 
|  | Module::Get()->core()->ReleaseResource(selected_files[i]); | 
|  | } | 
|  |  | 
|  | // Now execute the original callback. | 
|  | PP_RunCompletionCallback(&data->original_callback, result); | 
|  | delete data; | 
|  | } | 
|  |  | 
|  | }  // namespace pp |