1 /* 2 * Copyright (c) 2022 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 #ifndef JS_PRINT_EXTENSION_H 17 #define JS_PRINT_EXTENSION_H 18 19 #include "napi/native_api.h" 20 #include "print_extension.h" 21 #include "print_job.h" 22 23 class NativeReference; 24 class NativeValue; 25 class NativeObject; 26 27 namespace OHOS { 28 namespace AbilityRuntime { 29 class PrintExtension; 30 class JsRuntime; 31 /** 32 * @brief Basic Print components. 33 */ 34 class JsPrintExtension : public PrintExtension, public std::enable_shared_from_this<JsPrintExtension> { 35 public: 36 JsPrintExtension(JsRuntime &jsRuntime); 37 virtual ~JsPrintExtension() override; 38 39 /** 40 * @brief Create JsPrintExtension. 41 * 42 * @param runtime The runtime. 43 * @return The JsPrintExtension instance. 44 */ 45 static JsPrintExtension *Create(const std::unique_ptr<Runtime> &runtime); 46 47 /** 48 * @brief Init the extension. 49 * 50 * @param record the extension record. 51 * @param application the application info. 52 * @param handler the extension handler. 53 * @param token the remote token. 54 */ 55 virtual void Init(const std::shared_ptr<AppExecFwk::AbilityLocalRecord> &record, 56 const std::shared_ptr<AppExecFwk::OHOSApplication> &application, 57 std::shared_ptr<AppExecFwk::AbilityHandler> &handler, const sptr<IRemoteObject> &token) override; 58 59 /** 60 * @brief Called when this extension is started. You must override this function if you want to perform some 61 * initialization operations during extension startup. 62 * 63 * This function can be called only once in the entire lifecycle of an extension. 64 * @param Want Indicates the {@link Want} structure containing startup information about the extension. 65 */ 66 virtual void OnStart(const AAFwk::Want &want) override; 67 68 /** 69 * @brief Called when this Print extension is connected for the first time. 70 * 71 * You can override this function to implement your own processing logic. 72 * 73 * @param want Indicates the {@link Want} structure containing connection information about the Print extension. 74 * @return Returns a pointer to the <b>sid</b> of the connected Print extension. 75 */ 76 virtual sptr<IRemoteObject> OnConnect(const AAFwk::Want &want) override; 77 78 /** 79 * @brief Called when all abilities connected to this Print extension are disconnected. 80 * 81 * You can override this function to implement your own processing logic. 82 * 83 */ 84 virtual void OnDisconnect(const AAFwk::Want &want) override; 85 86 /** 87 * @brief Called back when Print is started. 88 * This method can be called only by Print. You can use the StartAbility(ohos.aafwk.content.Want) method 89 * to start Print. Then the system calls back the current method to use the transferred want parameter 90 * to execute its own logic. 91 * 92 * @param want Indicates the want of Print to start. 93 * @param restart Indicates the startup mode. The value true indicates that Print is restarted after being 94 * destroyed, and the value false indicates a normal startup. 95 * @param startId Indicates the number of times the Print extension has been started. The startId is incremented 96 * by 1 every time the extension is started. For example, if the extension has been started for six times, the 97 * value of startId is 6. 98 */ 99 virtual void OnCommand(const AAFwk::Want &want, bool restart, int startId) override; 100 101 /** 102 * @brief Called when this extension enters the <b>STATE_STOP</b> state. 103 * 104 * The extension in the <b>STATE_STOP</b> is being destroyed. 105 * You can override this function to implement your own processing logic. 106 */ 107 virtual void OnStop() override; 108 109 private: 110 NativeValue *CallObjectMethod(const char *name, NativeValue *const *argv = nullptr, size_t argc = 0); 111 bool InitExtensionObj(JsRuntime &jsRuntime); 112 bool InitContextObj(JsRuntime &jsRuntime, NativeObject *&extObj, std::string &extensionId); 113 void RegisterDiscoveryCb(); 114 void RegisterConnectionCb(); 115 void RegisterPrintJobCb(); 116 void RegisterPreviewCb(); 117 void RegisterQueryCapCb(); 118 void RegisterExtensionCb(); 119 void RegisterCb(); 120 121 void GetSrcPath(std::string &srcPath); 122 123 JsRuntime &jsRuntime_; 124 std::unique_ptr<NativeReference> jsObj_; 125 static JsPrintExtension *jsExtension_; 126 std::string extensionId_; 127 bool hasDestroyed_; 128 }; 129 } // namespace AbilityRuntime 130 } // namespace OHOS 131 #endif // JS_PRINT_EXTENSION_H