// 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 FPDFSDK_INCLUDE_JAVASCRIPT_JS_DEFINE_H_ #define FPDFSDK_INCLUDE_JAVASCRIPT_JS_DEFINE_H_ #include "../jsapi/fxjs_v8.h" #include "resource.h" #include "JS_Object.h" #include "JS_Value.h" struct JSConstSpec { const wchar_t* pName; double number; const wchar_t* string; uint8_t t; //0:double 1:str }; struct JSPropertySpec { const wchar_t* pName; v8::AccessorGetterCallback pPropGet; v8::AccessorSetterCallback pPropPut; }; struct JSMethodSpec { const wchar_t* pName; v8::FunctionCallback pMethodCall; }; /* ====================================== PUBLIC DEFINE SPEC ============================================== */ #define JS_WIDESTRING(widestring) L###widestring #define BEGIN_JS_STATIC_CONST(js_class_name) JSConstSpec js_class_name::JS_Class_Consts[] = { #define JS_STATIC_CONST_ENTRY_NUMBER(const_name, pValue) {JS_WIDESTRING(const_name), pValue, L"", 0}, #define JS_STATIC_CONST_ENTRY_STRING(const_name, pValue) {JS_WIDESTRING(const_name), 0, JS_WIDESTRING(pValue), 1}, #define END_JS_STATIC_CONST() {0, 0, 0, 0}}; #define BEGIN_JS_STATIC_PROP(js_class_name) JSPropertySpec js_class_name::JS_Class_Properties[] = { #define JS_STATIC_PROP_ENTRY(prop_name) {JS_WIDESTRING(prop_name), get_##prop_name##_static, set_##prop_name##_static}, #define END_JS_STATIC_PROP() {0, 0, 0}}; #define BEGIN_JS_STATIC_METHOD(js_class_name) JSMethodSpec js_class_name::JS_Class_Methods[] = { #define JS_STATIC_METHOD_ENTRY(method_name) {JS_WIDESTRING(method_name), method_name##_static}, #define END_JS_STATIC_METHOD() {0, 0}}; /* ======================================== PROP CALLBACK ============================================ */ template <class C, FX_BOOL (C::*M)(IFXJS_Context*, CJS_PropValue&, CFX_WideString&)> void JSPropGetter(const char* prop_name_string, const char* class_name_string, v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info) { v8::Isolate* isolate = info.GetIsolate(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_PropValue value(isolate); value.StartGetting(); CJS_Object* pJSObj = (CJS_Object*)JS_GetPrivate(isolate,info.Holder()); C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject()); CFX_WideString sError; if (!(pObj->*M)(pRuntimeContext, value, sError)) { JS_Error(isolate, JSFormatErrorString(class_name_string, prop_name_string, sError)); return; } info.GetReturnValue().Set((v8::Local<v8::Value>)value); } template <class C, FX_BOOL (C::*M)(IFXJS_Context*, CJS_PropValue&, CFX_WideString&)> void JSPropSetter(const char* prop_name_string, const char* class_name_string, v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info) { v8::Isolate* isolate = info.GetIsolate(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_PropValue propValue(CJS_Value(isolate, value, VT_unknown)); propValue.StartSetting(); CJS_Object* pJSObj = (CJS_Object*)JS_GetPrivate(isolate,info.Holder()); C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject()); CFX_WideString sError; if (!(pObj->*M)(pRuntimeContext, propValue, sError)) { JS_Error(isolate, JSFormatErrorString(class_name_string, prop_name_string, sError)); } } #define JS_STATIC_PROP(prop_name, class_name) \ static void get_##prop_name##_static( \ v8::Local<v8::String> property, \ const v8::PropertyCallbackInfo<v8::Value>& info) { \ JSPropGetter<class_name, &class_name::prop_name>( \ #prop_name, #class_name, property, info); \ } \ static void set_##prop_name##_static( \ v8::Local<v8::String> property, \ v8::Local<v8::Value> value, \ const v8::PropertyCallbackInfo<void>& info) { \ JSPropSetter<class_name, &class_name::prop_name>( \ #prop_name, #class_name, property, value, info); \ } /* ========================================= METHOD CALLBACK =========================================== */ template <class C, FX_BOOL (C::*M)(IFXJS_Context*, const CJS_Parameters&, CJS_Value&, CFX_WideString&)> void JSMethod(const char* method_name_string, const char* class_name_string, const v8::FunctionCallbackInfo<v8::Value>& info) { v8::Isolate* isolate = info.GetIsolate(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_Parameters parameters; for (unsigned int i = 0; i<(unsigned int)info.Length(); i++) { parameters.push_back(CJS_Value(isolate, info[i], VT_unknown)); } CJS_Value valueRes(isolate); CJS_Object* pJSObj = (CJS_Object *)JS_GetPrivate(isolate,info.Holder()); C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject()); CFX_WideString sError; if (!(pObj->*M)(pRuntimeContext, parameters, valueRes, sError)) { JS_Error(isolate, JSFormatErrorString(class_name_string, method_name_string, sError)); return; } info.GetReturnValue().Set(valueRes.ToV8Value()); } #define JS_STATIC_METHOD(method_name, class_name) \ static void method_name##_static( \ const v8::FunctionCallbackInfo<v8::Value>& info) { \ JSMethod<class_name, &class_name::method_name>( \ #method_name, #class_name, info); \ } #define JS_SPECIAL_STATIC_METHOD(method_name, class_alternate, class_name) \ static void method_name##_static( \ const v8::FunctionCallbackInfo<v8::Value>& info) { \ JSMethod<class_alternate, &class_alternate::method_name>( \ #method_name, #class_name, info); \ } /* ===================================== JS CLASS =============================================== */ #define DECLARE_JS_CLASS(js_class_name) \ static void JSConstructor(IFXJS_Context* cc, JSFXObject obj,JSFXObject global);\ static void JSDestructor(JSFXObject obj);\ static int Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType);\ static JSConstSpec JS_Class_Consts[];\ static JSPropertySpec JS_Class_Properties[];\ static JSMethodSpec JS_Class_Methods[];\ static const wchar_t* m_pClassName #define IMPLEMENT_JS_CLASS_RICH(js_class_name, class_alternate, class_name) \ const wchar_t* js_class_name::m_pClassName = JS_WIDESTRING(class_name);\ void js_class_name::JSConstructor(IFXJS_Context* cc, JSFXObject obj, JSFXObject global)\ {\ CJS_Object* pObj = FX_NEW js_class_name(obj);\ pObj->SetEmbedObject(FX_NEW class_alternate(pObj));\ JS_SetPrivate(NULL,obj,(void*)pObj); \ pObj->InitInstance(cc);\ }\ \ void js_class_name::JSDestructor(JSFXObject obj) \ {\ js_class_name* pObj = (js_class_name*)JS_GetPrivate(NULL,obj);\ ASSERT(pObj != NULL);\ pObj->ExitInstance();\ delete pObj;\ }\ \ int js_class_name::Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType)\ {\ int nObjDefnID = JS_DefineObj(pRuntime, js_class_name::m_pClassName, eObjType, JSConstructor, JSDestructor);\ if (nObjDefnID >= 0)\ {\ for (int j=0, szj=sizeof(JS_Class_Properties)/sizeof(JSPropertySpec)-1; j<szj; j++)\ {\ if (JS_DefineObjProperty(pRuntime, nObjDefnID, JS_Class_Properties[j].pName, JS_Class_Properties[j].pPropGet, JS_Class_Properties[j].pPropPut) < 0) return -1;\ }\ for (int k=0, szk=sizeof(JS_Class_Methods)/sizeof(JSMethodSpec)-1; k<szk; k++)\ {\ if (JS_DefineObjMethod(pRuntime, nObjDefnID,JS_Class_Methods[k].pName, JS_Class_Methods[k].pMethodCall) < 0) return -1;\ }\ return nObjDefnID;\ }\ return -1;\ } #define IMPLEMENT_JS_CLASS(js_class_name, class_name) IMPLEMENT_JS_CLASS_RICH(js_class_name, class_name, class_name) /* ======================================== CONST CLASS ============================================ */ #define DECLARE_JS_CLASS_CONST() \ static int Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType);\ static JSConstSpec JS_Class_Consts[];\ static const wchar_t* m_pClassName #define IMPLEMENT_JS_CLASS_CONST(js_class_name, class_name) \ const wchar_t* js_class_name::m_pClassName = JS_WIDESTRING(class_name);\ int js_class_name::Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType)\ {\ int nObjDefnID = JS_DefineObj(pRuntime, js_class_name::m_pClassName, eObjType, NULL, NULL);\ if (nObjDefnID >=0)\ {\ for (int i=0, sz=sizeof(JS_Class_Consts)/sizeof(JSConstSpec)-1; i<sz; i++)\ {\ if (JS_Class_Consts[i].t == 0)\ {\ if (JS_DefineObjConst(pRuntime, nObjDefnID, JS_Class_Consts[i].pName, JS_NewNumber(pRuntime,JS_Class_Consts[i].number)) < 0) return -1;\ }\ else\ {\ if (JS_DefineObjConst(pRuntime, nObjDefnID, JS_Class_Consts[i].pName, JS_NewString(pRuntime,JS_Class_Consts[i].string)) < 0) return -1;\ }\ }\ return nObjDefnID;\ }\ return -1;\ } /* ===================================== SPECIAL JS CLASS =============================================== */ template <class Alt> void JSSpecialPropQuery(const char *, v8::Local<v8::String> property,const v8::PropertyCallbackInfo<v8::Integer>& info) { v8::Isolate* isolate = info.GetIsolate(); v8::String::Utf8Value utf8_value(property); CFX_WideString propname = CFX_WideString::FromUTF8(*utf8_value, utf8_value.length()); CJS_Object* pJSObj = reinterpret_cast<CJS_Object*>(JS_GetPrivate(isolate, info.Holder())); Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject()); FX_BOOL bRet = pObj->QueryProperty(propname.c_str()); info.GetReturnValue().Set(bRet ? 4 : 0); } template <class Alt> void JSSpecialPropGet(const char* class_name, v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info) { v8::Isolate* isolate = info.GetIsolate(); v8::Local<v8::Context> context = isolate->GetCurrentContext(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_Object* pJSObj = reinterpret_cast<CJS_Object*>(JS_GetPrivate(isolate, info.Holder())); Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); CFX_WideString propname = CFX_WideString::FromUTF8(*utf8_value, utf8_value.length()); CFX_WideString sError; CJS_PropValue value(isolate); value.StartGetting(); if (!pObj->DoProperty(pRuntimeContext, propname.c_str(), value, sError)) { JS_Error(isolate, JSFormatErrorString(class_name, "GetProperty", sError)); return; } info.GetReturnValue().Set((v8::Local<v8::Value>)value); } template <class Alt> void JSSpecialPropPut(const char* class_name, v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) { v8::Isolate* isolate = info.GetIsolate(); v8::Local<v8::Context> context = isolate->GetCurrentContext(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_Object* pJSObj = reinterpret_cast<CJS_Object*>(JS_GetPrivate(isolate, info.Holder())); Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); CFX_WideString propname = CFX_WideString::FromUTF8(*utf8_value, utf8_value.length()); CFX_WideString sError; CJS_PropValue PropValue(CJS_Value(isolate,value,VT_unknown)); PropValue.StartSetting(); if (!pObj->DoProperty(pRuntimeContext, propname.c_str(), PropValue, sError)) { JS_Error(isolate, JSFormatErrorString(class_name, "PutProperty", sError)); } } template <class Alt> void JSSpecialPropDel(const char* class_name, v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Boolean>& info) { v8::Isolate* isolate = info.GetIsolate(); v8::Local<v8::Context> context = isolate->GetCurrentContext(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_Object* pJSObj = reinterpret_cast<CJS_Object*>(JS_GetPrivate(isolate, info.Holder())); Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); CFX_WideString propname = CFX_WideString::FromUTF8(*utf8_value, utf8_value.length()); CFX_WideString sError; if (!pObj->DelProperty(pRuntimeContext, propname.c_str(), sError)) { CFX_ByteString cbName; cbName.Format("%s.%s", class_name, "DelProperty"); // Probably a missing call to JS_Error(). } } #define DECLARE_SPECIAL_JS_CLASS(js_class_name) \ static void JSConstructor(IFXJS_Context* cc, JSFXObject obj, JSFXObject global);\ static void JSDestructor(JSFXObject obj);\ static JSConstSpec JS_Class_Consts[];\ static JSPropertySpec JS_Class_Properties[];\ static JSMethodSpec JS_Class_Methods[];\ static int Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType);\ static const wchar_t* m_pClassName;\ static void queryprop_##js_class_name##_static(v8::Local<v8::String> property,const v8::PropertyCallbackInfo<v8::Integer>& info);\ static void getprop_##js_class_name##_static(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info);\ static void putprop_##js_class_name##_static(v8::Local<v8::String> property,v8::Local<v8::Value> value,const v8::PropertyCallbackInfo<v8::Value>& info);\ static void delprop_##js_class_name##_static(v8::Local<v8::String> property,const v8::PropertyCallbackInfo<v8::Boolean>& info) #define IMPLEMENT_SPECIAL_JS_CLASS(js_class_name, class_alternate, class_name) \ const wchar_t * js_class_name::m_pClassName = JS_WIDESTRING(class_name);\ void js_class_name::queryprop_##js_class_name##_static(v8::Local<v8::String> property,const v8::PropertyCallbackInfo<v8::Integer>& info) { \ JSSpecialPropQuery<class_alternate>(#class_name, property, info); \ }\ void js_class_name::getprop_##js_class_name##_static(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info) { \ JSSpecialPropGet<class_alternate>(#class_name, property, info); \ } \ void js_class_name::putprop_##js_class_name##_static(v8::Local<v8::String> property,v8::Local<v8::Value> value,const v8::PropertyCallbackInfo<v8::Value>& info) {\ JSSpecialPropPut<class_alternate>(#class_name, property, value, info); \ }\ void js_class_name::delprop_##js_class_name##_static(v8::Local<v8::String> property,const v8::PropertyCallbackInfo<v8::Boolean>& info) { \ JSSpecialPropDel<class_alternate>(#class_name, property, info); \ } \ void js_class_name::JSConstructor(IFXJS_Context* cc, JSFXObject obj,JSFXObject global)\ {\ CJS_Object* pObj = FX_NEW js_class_name(obj);\ pObj->SetEmbedObject(FX_NEW class_alternate(pObj));\ JS_SetPrivate(NULL,obj, (void*)pObj); \ pObj->InitInstance(cc);\ }\ \ void js_class_name::JSDestructor(JSFXObject obj) \ {\ js_class_name* pObj = (js_class_name*)JS_GetPrivate(NULL,obj);\ ASSERT(pObj != NULL);\ pObj->ExitInstance();\ delete pObj;\ }\ \ int js_class_name::Init(IJS_Runtime* pRuntime, FXJSOBJTYPE eObjType)\ {\ \ int nObjDefnID = JS_DefineObj(pRuntime, js_class_name::m_pClassName, eObjType, JSConstructor, JSDestructor);\ \ if (nObjDefnID >= 0)\ {\ for (int j=0, szj=sizeof(JS_Class_Properties)/sizeof(JSPropertySpec)-1; j<szj; j++)\ {\ if (JS_DefineObjProperty(pRuntime, nObjDefnID, JS_Class_Properties[j].pName, JS_Class_Properties[j].pPropGet,JS_Class_Properties[j].pPropPut)<0)return -1;\ }\ \ for (int k=0, szk=sizeof(JS_Class_Methods)/sizeof(JSMethodSpec)-1; k<szk; k++)\ {\ if (JS_DefineObjMethod(pRuntime, nObjDefnID,JS_Class_Methods[k].pName,JS_Class_Methods[k].pMethodCall)<0)return -1;\ }\ if (JS_DefineObjAllProperties(pRuntime, nObjDefnID, js_class_name::queryprop_##js_class_name##_static, js_class_name::getprop_##js_class_name##_static,js_class_name::putprop_##js_class_name##_static,js_class_name::delprop_##js_class_name##_static)<0) return -1;\ \ return nObjDefnID;\ }\ \ return -1;\ } /* ======================================== GLOBAL METHODS ============================================ */ template <FX_BOOL (*F)(IFXJS_Context*, const CJS_Parameters&, CJS_Value&, CFX_WideString&)> void JSGlobalFunc(const char *func_name_string, const v8::FunctionCallbackInfo<v8::Value>& info) { v8::Isolate* isolate = info.GetIsolate(); IFXJS_Runtime* pRuntime = (IFXJS_Runtime*)isolate->GetData(2); IFXJS_Context* pRuntimeContext = pRuntime->GetCurrentContext(); CJS_Parameters parameters; for (unsigned int i = 0; i<(unsigned int)info.Length(); i++) { parameters.push_back(CJS_Value(isolate, info[i], VT_unknown)); } CJS_Value valueRes(isolate); CFX_WideString sError; if (!(*F)(pRuntimeContext, parameters, valueRes, sError)) { JS_Error(isolate, JSFormatErrorString(func_name_string, nullptr, sError)); return; } info.GetReturnValue().Set(valueRes.ToV8Value()); } #define JS_STATIC_GLOBAL_FUN(fun_name) \ static void fun_name##_static(const v8::FunctionCallbackInfo<v8::Value>& info) { \ JSGlobalFunc<fun_name>(#fun_name, info); \ } #define JS_STATIC_DECLARE_GLOBAL_FUN() \ static JSMethodSpec global_methods[]; \ static int Init(IJS_Runtime* pRuntime) #define BEGIN_JS_STATIC_GLOBAL_FUN(js_class_name) \ JSMethodSpec js_class_name::global_methods[] = { #define JS_STATIC_GLOBAL_FUN_ENTRY(method_name) JS_STATIC_METHOD_ENTRY(method_name) #define END_JS_STATIC_GLOBAL_FUN() END_JS_STATIC_METHOD() #define IMPLEMENT_JS_STATIC_GLOBAL_FUN(js_class_name) \ int js_class_name::Init(IJS_Runtime* pRuntime)\ {\ for (int i=0, sz=sizeof(js_class_name::global_methods)/sizeof(JSMethodSpec)-1; i<sz; i++)\ {\ if (JS_DefineGlobalMethod(pRuntime,\ js_class_name::global_methods[i].pName,\ js_class_name::global_methods[i].pMethodCall\ ) < 0\ )return -1;\ }\ return 0;\ } /* ======================================== GLOBAL CONSTS ============================================ */ #define DEFINE_GLOBAL_CONST(pRuntime, const_name , const_value)\ if (JS_DefineGlobalConst(pRuntime,JS_WIDESTRING(const_name),JS_NewString(pRuntime,JS_WIDESTRING(const_value)))) return -1 /* ======================================== GLOBAL ARRAYS ============================================ */ #define DEFINE_GLOBAL_ARRAY(pRuntime)\ int size = FX_ArraySize(ArrayContent);\ \ CJS_Array array(pRuntime);\ for (int i=0; i<size; i++) array.SetElement(i,CJS_Value(pRuntime,ArrayContent[i]));\ \ CJS_PropValue prop(pRuntime);\ prop << array;\ if (JS_DefineGlobalConst(pRuntime, (const wchar_t*)ArrayName, prop.ToV8Value()) < 0)\ return -1 /* ============================================================ */ #define VALUE_NAME_STRING L"string" #define VALUE_NAME_NUMBER L"number" #define VALUE_NAME_BOOLEAN L"boolean" #define VALUE_NAME_DATE L"date" #define VALUE_NAME_OBJECT L"object" #define VALUE_NAME_FXOBJ L"fxobj" #define VALUE_NAME_NULL L"null" #define VALUE_NAME_UNDEFINED L"undefined" FXJSVALUETYPE GET_VALUE_TYPE(v8::Local<v8::Value> p); #endif // FPDFSDK_INCLUDE_JAVASCRIPT_JS_DEFINE_H_