1 /*
2 * Copyright 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "set_browsed_player.h"
18
19 #include "internal_include/bt_trace.h"
20
21 namespace bluetooth {
22 namespace avrcp {
23
24 std::unique_ptr<SetBrowsedPlayerResponseBuilder>
MakeBuilder(Status status,uint16_t uid_counter,uint32_t num_items_in_folder,uint8_t folder_depth,std::string folder_name)25 SetBrowsedPlayerResponseBuilder::MakeBuilder(Status status,
26 uint16_t uid_counter,
27 uint32_t num_items_in_folder,
28 uint8_t folder_depth,
29 std::string folder_name) {
30 std::unique_ptr<SetBrowsedPlayerResponseBuilder> builder(
31 new SetBrowsedPlayerResponseBuilder(
32 status, uid_counter, num_items_in_folder, folder_depth, folder_name));
33
34 return builder;
35 }
36
size() const37 size_t SetBrowsedPlayerResponseBuilder::size() const {
38 size_t len = BrowsePacket::kMinSize();
39 len += 1; // Status
40
41 // If the status isn't success the rest of the fields are ommited
42 if (status_ != Status::NO_ERROR) return len;
43
44 len += 2; // UID Counter
45 len += 4; // Number of items in folder
46 len += 2; // UTF-8 Character Set
47 len += 1; // Folder Depth
48
49 // This is only included if the folder returned isn't the root folder
50 if (folder_depth_ != 0) {
51 len += 2; // Folder Name Size;
52 len += folder_name_.size(); // Folder Name
53 }
54
55 return len;
56 }
57
Serialize(const std::shared_ptr<::bluetooth::Packet> & pkt)58 bool SetBrowsedPlayerResponseBuilder::Serialize(
59 const std::shared_ptr<::bluetooth::Packet>& pkt) {
60 ReserveSpace(pkt, size());
61
62 BrowsePacketBuilder::PushHeader(pkt, size() - BrowsePacket::kMinSize());
63
64 AddPayloadOctets1(pkt, (uint8_t)status_);
65
66 if (status_ != Status::NO_ERROR) return true;
67 AddPayloadOctets2(pkt, base::ByteSwap(uid_counter_));
68 AddPayloadOctets4(pkt, base::ByteSwap(num_items_in_folder_));
69 AddPayloadOctets2(pkt, base::ByteSwap((uint16_t)0x006a)); // UTF-8
70 AddPayloadOctets1(pkt, folder_depth_);
71
72 // Skip adding the folder name if the folder depth is 0
73 if (folder_depth_ == 0) return true;
74 uint16_t folder_name_len = folder_name_.size();
75 AddPayloadOctets2(pkt, base::ByteSwap(folder_name_len));
76 for (auto it = folder_name_.begin(); it != folder_name_.end(); it++) {
77 AddPayloadOctets1(pkt, *it);
78 }
79
80 return true;
81 }
82
GetPlayerId() const83 uint16_t SetBrowsedPlayerRequest::GetPlayerId() const {
84 auto it = begin() + BrowsePacket::kMinSize();
85 return it.extractBE<uint16_t>();
86 }
87
IsValid() const88 bool SetBrowsedPlayerRequest::IsValid() const {
89 if (!BrowsePacket::IsValid()) return false;
90 return size() == kMinSize();
91 }
92
ToString() const93 std::string SetBrowsedPlayerRequest::ToString() const {
94 std::stringstream ss;
95 ss << "SetBrowsedPlayerRequestPacket: " << std::endl;
96 ss << " └ PDU = " << GetPdu() << std::endl;
97 ss << " └ Length = " << GetLength() << std::endl;
98 ss << " └ Player ID = " << loghex(GetPlayerId()) << std::endl;
99 ss << std::endl;
100
101 return ss.str();
102 }
103
104 } // namespace avrcp
105 } // namespace bluetooth
106