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 #include "ppapi/cpp/dev/file_chooser_dev.h"
6
7 #include <string.h>
8
9 #include "ppapi/c/dev/ppb_file_chooser_dev.h"
10 #include "ppapi/c/pp_errors.h"
11 #include "ppapi/cpp/completion_callback.h"
12 #include "ppapi/cpp/file_ref.h"
13 #include "ppapi/cpp/instance_handle.h"
14 #include "ppapi/cpp/module.h"
15 #include "ppapi/cpp/module_impl.h"
16
17 namespace pp {
18
19 namespace {
20
interface_name()21 template <> const char* interface_name<PPB_FileChooser_Dev_0_5>() {
22 return PPB_FILECHOOSER_DEV_INTERFACE_0_5;
23 }
24
interface_name()25 template <> const char* interface_name<PPB_FileChooser_Dev_0_6>() {
26 return PPB_FILECHOOSER_DEV_INTERFACE_0_6;
27 }
28
29 } // namespace
30
FileChooser_Dev(const InstanceHandle & instance,PP_FileChooserMode_Dev mode,const Var & accept_types)31 FileChooser_Dev::FileChooser_Dev(const InstanceHandle& instance,
32 PP_FileChooserMode_Dev mode,
33 const Var& accept_types) {
34 if (has_interface<PPB_FileChooser_Dev_0_6>()) {
35 PassRefFromConstructor(get_interface<PPB_FileChooser_Dev_0_6>()->Create(
36 instance.pp_instance(), mode, accept_types.pp_var()));
37 } else if (has_interface<PPB_FileChooser_Dev_0_5>()) {
38 PassRefFromConstructor(get_interface<PPB_FileChooser_Dev_0_5>()->Create(
39 instance.pp_instance(), mode, accept_types.pp_var()));
40 }
41 }
42
FileChooser_Dev(const FileChooser_Dev & other)43 FileChooser_Dev::FileChooser_Dev(const FileChooser_Dev& other)
44 : Resource(other) {
45 }
46
Show(const CompletionCallbackWithOutput<std::vector<FileRef>> & callback)47 int32_t FileChooser_Dev::Show(
48 const CompletionCallbackWithOutput< std::vector<FileRef> >& callback) {
49 if (has_interface<PPB_FileChooser_Dev_0_6>()) {
50 return get_interface<PPB_FileChooser_Dev_0_6>()->Show(
51 pp_resource(),
52 callback.output(),
53 callback.pp_completion_callback());
54 }
55 if (has_interface<PPB_FileChooser_Dev_0_5>()) {
56 // Data for our callback wrapper. The callback handler will delete it.
57 ChooseCallbackData0_5* data = new ChooseCallbackData0_5;
58 data->file_chooser = pp_resource();
59 data->output = callback.output();
60 data->original_callback = callback.pp_completion_callback();
61
62 return get_interface<PPB_FileChooser_Dev_0_5>()->Show(
63 pp_resource(), PP_MakeCompletionCallback(&CallbackConverter, data));
64 }
65 return callback.MayForce(PP_ERROR_NOINTERFACE);
66 }
67
68 // static
CallbackConverter(void * user_data,int32_t result)69 void FileChooser_Dev::CallbackConverter(void* user_data, int32_t result) {
70 ChooseCallbackData0_5* data = static_cast<ChooseCallbackData0_5*>(user_data);
71
72 // Get all of the selected file resources using the iterator API.
73 std::vector<PP_Resource> selected_files;
74 if (result == PP_OK) {
75 const PPB_FileChooser_Dev_0_5* chooser =
76 get_interface<PPB_FileChooser_Dev_0_5>();
77 while (PP_Resource cur = chooser->GetNextChosenFile(data->file_chooser))
78 selected_files.push_back(cur);
79 }
80
81 // Need to issue the "GetDataBuffer" even for error cases & when the
82 // number of items is 0.
83 void* output_buf = data->output.GetDataBuffer(
84 data->output.user_data,
85 selected_files.size(), sizeof(PP_Resource));
86 if (output_buf) {
87 if (!selected_files.empty()) {
88 memcpy(output_buf, &selected_files[0],
89 sizeof(PP_Resource) * selected_files.size());
90 }
91 } else {
92 // Error allocating, need to free the resource IDs.
93 for (size_t i = 0; i < selected_files.size(); i++)
94 Module::Get()->core()->ReleaseResource(selected_files[i]);
95 }
96
97 // Now execute the original callback.
98 PP_RunCompletionCallback(&data->original_callback, result);
99 delete data;
100 }
101
102 } // namespace pp
103