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