1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "virtual_keyboard.h"
17
18 #include <cmath>
19
20 #include <linux/input.h>
21
22 #include "input_manager.h"
23
24 #include "devicestatus_define.h"
25 #include "fi_log.h"
26 #include "virtual_keyboard_builder.h"
27
28 namespace OHOS {
29 namespace Msdp {
30 namespace DeviceStatus {
31 namespace {
32 constexpr ::OHOS::HiviewDFX::HiLogLabel LABEL { LOG_CORE, MSDP_DOMAIN_ID, "VirtualKeyboard" };
33 constexpr int32_t MINIMUM_INTERVAL { 8 };
34 } // namespace
35
36 VirtualKeyboard *VirtualKeyboard::device_ { nullptr };
37
GetDevice()38 VirtualKeyboard *VirtualKeyboard::GetDevice()
39 {
40 if (device_ == nullptr) {
41 std::string node;
42 if (VirtualDevice::FindDeviceNode(VirtualKeyboardBuilder::GetDeviceName(), node)) {
43 auto vKeyboard = new (std::nothrow) VirtualKeyboard(node);
44 CHKPP(vKeyboard);
45 if (vKeyboard->IsActive()) {
46 device_ = vKeyboard;
47 }
48 }
49 }
50 return device_;
51 }
52
VirtualKeyboard(const std::string & name)53 VirtualKeyboard::VirtualKeyboard(const std::string &name)
54 : VirtualDevice(name)
55 {
56 VirtualDevice::SetMinimumInterval(MINIMUM_INTERVAL);
57 }
58
Down(int32_t key)59 int32_t VirtualKeyboard::Down(int32_t key)
60 {
61 CALL_DEBUG_ENTER;
62 if (!SupportKey(key)) {
63 FI_HILOGE("Unsupported key code:%{public}d", key);
64 return RET_ERR;
65 }
66
67 SendEvent(EV_MSC, MSC_SCAN, OBFUSCATED);
68 SendEvent(EV_KEY, key, DOWN_VALUE);
69 SendEvent(EV_SYN, SYN_REPORT, SYNC_VALUE);
70 return RET_OK;
71 }
72
Up(int32_t key)73 int32_t VirtualKeyboard::Up(int32_t key)
74 {
75 CALL_DEBUG_ENTER;
76 if (!SupportKey(key)) {
77 FI_HILOGE("Unsupported key code:%{public}d", key);
78 return RET_ERR;
79 }
80
81 SendEvent(EV_MSC, MSC_SCAN, OBFUSCATED);
82 SendEvent(EV_KEY, key, UP_VALUE);
83 SendEvent(EV_SYN, SYN_REPORT, SYNC_VALUE);
84 return RET_OK;
85 }
86 } // namespace DeviceStatus
87 } // namespace Msdp
88 } // namespace OHOS