1 /*
2  * Copyright (c) 2024 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 <string>
17 
18 #include "interfaces/napi/kits/utils/napi_utils.h"
19 #include "napi/native_api.h"
20 #include "napi/native_node_api.h"
21 #include "native_engine/native_value.h"
22 
23 #include "frameworks/bridge/common/utils/componentInfo.h"
24 #include "frameworks/bridge/common/utils/engine_helper.h"
25 
26 namespace OHOS::Ace::Napi {
27 namespace {
28 constexpr size_t STR_BUFFER_SIZE = 1024;
29 constexpr size_t ARGC_ACTIVATE_PARAMTER = 2;
30 }
31 
JSClearFocus(napi_env env,napi_callback_info info)32 static napi_value JSClearFocus(napi_env env, napi_callback_info info)
33 {
34     auto delegate = EngineHelper::GetCurrentDelegateSafely();
35     if (!delegate) {
36         return nullptr;
37     }
38     delegate->ResetFocus();
39     return nullptr;
40 }
41 
JSRequestFocus(napi_env env,napi_callback_info info)42 static napi_value JSRequestFocus(napi_env env, napi_callback_info info)
43 {
44     size_t argc = 1;
45     napi_value argv = nullptr;
46     napi_value thisVar = nullptr;
47     void* data = nullptr;
48     napi_get_cb_info(env, info, &argc, &argv, &thisVar, &data);
49     NAPI_ASSERT(env, argc == 1, "requires 1 parameter");
50     napi_valuetype type = napi_undefined;
51     napi_typeof(env, argv, &type);
52     NAPI_ASSERT(env, type == napi_string, "the type of arg is not string");
53     char outBuffer[STR_BUFFER_SIZE] = { 0 };
54     size_t outSize = 0;
55     napi_get_value_string_utf8(env, argv, outBuffer, STR_BUFFER_SIZE, &outSize);
56     std::string key = std::string(outBuffer);
57 
58     napi_value obj = nullptr;
59     auto delegate = EngineHelper::GetCurrentDelegateSafely();
60     if (!delegate) {
61         napi_get_boolean(env, false, &obj);
62         return obj;
63     }
64     auto focusCallback = [env](NG::RequestFocusResult result) {
65         switch (result) {
66             case NG::RequestFocusResult::NON_FOCUSABLE:
67                 NapiThrow(env, "This component is not focusable.", ERROR_CODE_NON_FOCUSABLE);
68                 break;
69             case NG::RequestFocusResult::NON_FOCUSABLE_ANCESTOR:
70                 NapiThrow(env, "This component has unfocusable ancestor.", ERROR_CODE_NON_FOCUSABLE_ANCESTOR);
71                 break;
72             case NG::RequestFocusResult::NON_EXIST:
73                 NapiThrow(env,
74                     "The component doesn't exist, is currently invisible, or has been disabled.",
75                     ERROR_CODE_NON_EXIST);
76                 break;
77             default:
78                 NapiThrow(env, "An internal error occurred.", ERROR_CODE_INTERNAL_ERROR);
79                 break;
80         }
81     };
82     delegate->SetRequestFocusCallback(focusCallback);
83     delegate->RequestFocus(key, true);
84     delegate->ResetRequestFocusCallback();
85     napi_get_null(env, &obj);
86     return obj;
87 }
88 
JsSetAutoFocusTransfer(napi_env env,napi_callback_info info)89 static napi_value JsSetAutoFocusTransfer(napi_env env, napi_callback_info info)
90 {
91     auto delegate = EngineHelper::GetCurrentDelegateSafely();
92     if (!delegate) {
93         return nullptr;
94     }
95     napi_value argv[1] = { 0 };
96     napi_valuetype valueType = napi_undefined;
97     if (!GetSingleParam(env, info, argv, valueType) || (valueType != napi_boolean)) {
98         return nullptr;
99     }
100     bool isAutoFocusTransfer = true;
101     napi_get_value_bool(env, argv[0], &isAutoFocusTransfer);
102     delegate->SetAutoFocusTransfer(isAutoFocusTransfer);
103     return nullptr;
104 }
105 
JSActivate(napi_env env,napi_callback_info info)106 static napi_value JSActivate(napi_env env, napi_callback_info info)
107 {
108     size_t argc = ARGC_ACTIVATE_PARAMTER;
109     napi_value argv[ARGC_ACTIVATE_PARAMTER] = { nullptr };
110     napi_value thisVar = nullptr;
111     void* data = nullptr;
112     napi_get_cb_info(env, info, &argc, argv, &thisVar, &data);
113     NAPI_ASSERT(env, argc >= 1, "requires at least 1 parameter");
114     napi_valuetype type = napi_undefined;
115     napi_typeof(env, argv[0], &type);
116     NAPI_ASSERT(env, type == napi_boolean, "the type of argv[0] is not bool");
117     bool isActive = false;
118     napi_get_value_bool(env, argv[0], &isActive);
119 
120     bool autoInactive = true;
121     if (argc == ARGC_ACTIVATE_PARAMTER) {
122         napi_typeof(env, argv[1], &type);
123         NAPI_ASSERT(env, type == napi_boolean, "the type of argv[1] is not bool");
124         napi_get_value_bool(env, argv[1], &autoInactive);
125     }
126 
127     napi_value obj = nullptr;
128     auto delegate = EngineHelper::GetCurrentDelegateSafely();
129     if (!delegate) {
130         napi_get_boolean(env, false, &obj);
131         return obj;
132     }
133     delegate->Activate(isActive, autoInactive);
134     napi_get_null(env, &obj);
135     return obj;
136 }
137 
registerFunc(napi_env env,napi_value exports)138 static napi_value registerFunc(napi_env env, napi_value exports)
139 {
140     napi_property_descriptor animatorDesc[] = {
141         DECLARE_NAPI_FUNCTION("clearFocus", JSClearFocus),
142         DECLARE_NAPI_FUNCTION("requestFocus", JSRequestFocus),
143         DECLARE_NAPI_FUNCTION("setAutoFocusTransfer", JsSetAutoFocusTransfer),
144         DECLARE_NAPI_FUNCTION("activate", JSActivate),
145     };
146     NAPI_CALL(env, napi_define_properties(env, exports, sizeof(animatorDesc) / sizeof(animatorDesc[0]), animatorDesc));
147     return exports;
148 }
149 
150 static napi_module focusControllerModule = {
151     .nm_version = 1,
152     .nm_flags = 0,
153     .nm_filename = nullptr,
154     .nm_register_func = registerFunc,
155     .nm_modname = "arkui.focusController",
156     .nm_priv = ((void*)0),
157     .reserved = { 0 },
158 };
159 
FocusControllerRegister()160 extern "C" __attribute__((constructor)) void FocusControllerRegister()
161 {
162     napi_module_register(&focusControllerModule);
163 }
164 } // namespace OHOS::Ace::Napi