| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef FXJS_CJS_GLOBAL_H_ |
| #define FXJS_CJS_GLOBAL_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/unowned_ptr.h" |
| #include "fxjs/cfx_keyvalue.h" |
| #include "fxjs/cjs_object.h" |
| #include "fxjs/cjs_result.h" |
| |
| class CFX_GlobalData; |
| |
| // The CJS_Global object is not the V8 global object (i.e. it is not |this| |
| // in JavaScript outside of a bound function call). It is a facility for |
| // sharing data amongst documents and persisting data within a document |
| // between sessions. It is only partially implemented due to security and |
| // privacy concerns. It provides access via properties in the usual manner, |
| // execpt that these are stored on the C++ side rather than in V8 itself. |
| // It is a static object that is available as "global" property of the V8 |
| // global object and can be manipulated from JavaScript as |global['foo']| |
| // for example. |
| |
| class CJS_Global final : public CJS_Object { |
| public: |
| static uint32_t GetObjDefnID(); |
| static void DefineJSObjects(CFXJS_Engine* pEngine); |
| static void DefineAllProperties(CFXJS_Engine* pEngine); |
| |
| static void queryprop_static( |
| v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Integer>& info); |
| static void getprop_static(v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Value>& info); |
| static void putprop_static(v8::Local<v8::Name> property, |
| v8::Local<v8::Value> value, |
| const v8::PropertyCallbackInfo<v8::Value>& info); |
| static void delprop_static(v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Boolean>& info); |
| static void enumprop_static(const v8::PropertyCallbackInfo<v8::Array>& info); |
| |
| static void setPersistent_static( |
| const v8::FunctionCallbackInfo<v8::Value>& info); |
| |
| CJS_Global(v8::Local<v8::Object> pObject, CJS_Runtime* pRuntime); |
| ~CJS_Global() override; |
| |
| CJS_Result setPersistent(CJS_Runtime* pRuntime, |
| const std::vector<v8::Local<v8::Value>>& params); |
| bool HasProperty(const WideString& propname); |
| bool DelProperty(CJS_Runtime* pRuntime, const WideString& propname); |
| CJS_Result GetProperty(CJS_Runtime* pRuntime, const WideString& propname); |
| CJS_Result SetProperty(CJS_Runtime* pRuntime, |
| const WideString& propname, |
| v8::Local<v8::Value> vp); |
| void EnumProperties(CJS_Runtime* pRuntime, |
| const v8::PropertyCallbackInfo<v8::Array>& info); |
| |
| private: |
| struct JSGlobalData : public CFX_Value { |
| public: |
| JSGlobalData(); |
| ~JSGlobalData(); |
| |
| v8::Global<v8::Object> pData; |
| bool bPersistent = false; |
| bool bDeleted = false; |
| }; |
| |
| static uint32_t ObjDefnID; |
| static const JSMethodSpec MethodSpecs[]; |
| |
| void UpdateGlobalPersistentVariables(); |
| // TODO(crbug.com/pdfium/926): This method is never called. |
| void CommitGlobalPersisitentVariables(); |
| void DestroyGlobalPersisitentVariables(); |
| CJS_Result SetGlobalVariables(const ByteString& propname, |
| CFX_Value::DataType nType, |
| double dData, |
| bool bData, |
| const ByteString& sData, |
| v8::Local<v8::Object> pData, |
| bool bDefaultPersistent); |
| std::vector<std::unique_ptr<CFX_KeyValue>> ObjectToArray( |
| CJS_Runtime* pRuntime, |
| v8::Local<v8::Object> pObj); |
| void PutObjectProperty(v8::Local<v8::Object> obj, CFX_KeyValue* pData); |
| |
| std::map<ByteString, std::unique_ptr<JSGlobalData>> m_MapGlobal; |
| UnownedPtr<CFX_GlobalData> m_pGlobalData; |
| }; |
| |
| #endif // FXJS_CJS_GLOBAL_H_ |