| // 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 |
| |
| #include "fxjs/cjs_runtime.h" |
| |
| #include <algorithm> |
| |
| #include "fpdfsdk/cpdfsdk_formfillenvironment.h" |
| #include "fxjs/cfx_globaldata.h" |
| #include "fxjs/cjs_annot.h" |
| #include "fxjs/cjs_app.h" |
| #include "fxjs/cjs_border.h" |
| #include "fxjs/cjs_color.h" |
| #include "fxjs/cjs_console.h" |
| #include "fxjs/cjs_display.h" |
| #include "fxjs/cjs_document.h" |
| #include "fxjs/cjs_event.h" |
| #include "fxjs/cjs_event_context.h" |
| #include "fxjs/cjs_eventhandler.h" |
| #include "fxjs/cjs_field.h" |
| #include "fxjs/cjs_font.h" |
| #include "fxjs/cjs_global.h" |
| #include "fxjs/cjs_globalarrays.h" |
| #include "fxjs/cjs_globalconsts.h" |
| #include "fxjs/cjs_highlight.h" |
| #include "fxjs/cjs_icon.h" |
| #include "fxjs/cjs_object.h" |
| #include "fxjs/cjs_position.h" |
| #include "fxjs/cjs_publicmethods.h" |
| #include "fxjs/cjs_scalehow.h" |
| #include "fxjs/cjs_scalewhen.h" |
| #include "fxjs/cjs_style.h" |
| #include "fxjs/cjs_timerobj.h" |
| #include "fxjs/cjs_util.h" |
| #include "fxjs/cjs_zoomtype.h" |
| #include "fxjs/js_define.h" |
| #include "third_party/base/ptr_util.h" |
| |
| #ifdef PDF_ENABLE_XFA |
| #include "fxjs/xfa/cfxjse_value.h" |
| #endif // PDF_ENABLE_XFA |
| |
| CJS_Runtime::CJS_Runtime(CPDFSDK_FormFillEnvironment* pFormFillEnv) |
| : m_pFormFillEnv(pFormFillEnv) { |
| v8::Isolate* pIsolate = nullptr; |
| |
| IPDF_JSPLATFORM* pPlatform = m_pFormFillEnv->GetFormFillInfo()->m_pJsPlatform; |
| if (pPlatform->version <= 2) { |
| unsigned int embedderDataSlot = 0; |
| v8::Isolate* pExternalIsolate = nullptr; |
| if (pPlatform->version == 2) { |
| pExternalIsolate = static_cast<v8::Isolate*>(pPlatform->m_isolate); |
| embedderDataSlot = pPlatform->m_v8EmbedderSlot; |
| } |
| FXJS_Initialize(embedderDataSlot, pExternalIsolate); |
| } |
| m_isolateManaged = FXJS_GetIsolate(&pIsolate); |
| SetIsolate(pIsolate); |
| |
| #ifdef PDF_ENABLE_XFA |
| v8::Isolate::Scope isolate_scope(pIsolate); |
| v8::HandleScope handle_scope(pIsolate); |
| #endif |
| |
| if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0) |
| DefineJSObjects(); |
| |
| ScopedEventContext pContext(this); |
| InitializeEngine(); |
| SetFormFillEnvToDocument(); |
| } |
| |
| CJS_Runtime::~CJS_Runtime() { |
| NotifyObservers(); |
| ReleaseEngine(); |
| if (m_isolateManaged) |
| DisposeIsolate(); |
| } |
| |
| void CJS_Runtime::DefineJSObjects() { |
| v8::Isolate::Scope isolate_scope(GetIsolate()); |
| v8::HandleScope handle_scope(GetIsolate()); |
| v8::Local<v8::Context> context = v8::Context::New(GetIsolate()); |
| v8::Context::Scope context_scope(context); |
| |
| // The call order determines the "ObjDefID" assigned to each class. |
| // ObjDefIDs 0 - 2 |
| CJS_Border::DefineJSObjects(this); |
| CJS_Display::DefineJSObjects(this); |
| CJS_Font::DefineJSObjects(this); |
| |
| // ObjDefIDs 3 - 5 |
| CJS_Highlight::DefineJSObjects(this); |
| CJS_Position::DefineJSObjects(this); |
| CJS_ScaleHow::DefineJSObjects(this); |
| |
| // ObjDefIDs 6 - 8 |
| CJS_ScaleWhen::DefineJSObjects(this); |
| CJS_Style::DefineJSObjects(this); |
| CJS_Zoomtype::DefineJSObjects(this); |
| |
| // ObjDefIDs 9 - 11 |
| CJS_App::DefineJSObjects(this); |
| CJS_Color::DefineJSObjects(this); |
| CJS_Console::DefineJSObjects(this); |
| |
| // ObjDefIDs 12 - 14 |
| CJS_Document::DefineJSObjects(this); |
| CJS_Event::DefineJSObjects(this); |
| CJS_Field::DefineJSObjects(this); |
| |
| // ObjDefIDs 15 - 17 |
| CJS_Global::DefineJSObjects(this); |
| CJS_Icon::DefineJSObjects(this); |
| CJS_Util::DefineJSObjects(this); |
| |
| // ObjDefIDs 18 - 20 (these can't fail, return void). |
| CJS_PublicMethods::DefineJSObjects(this); |
| CJS_GlobalConsts::DefineJSObjects(this); |
| CJS_GlobalArrays::DefineJSObjects(this); |
| |
| // ObjDefIDs 21 - 22. |
| CJS_TimerObj::DefineJSObjects(this); |
| CJS_Annot::DefineJSObjects(this); |
| } |
| |
| IJS_EventContext* CJS_Runtime::NewEventContext() { |
| m_EventContextArray.push_back(pdfium::MakeUnique<CJS_EventContext>(this)); |
| return m_EventContextArray.back().get(); |
| } |
| |
| void CJS_Runtime::ReleaseEventContext(IJS_EventContext* pContext) { |
| ASSERT(pContext == m_EventContextArray.back().get()); |
| m_EventContextArray.pop_back(); |
| } |
| |
| CJS_EventContext* CJS_Runtime::GetCurrentEventContext() const { |
| return m_EventContextArray.empty() ? nullptr |
| : m_EventContextArray.back().get(); |
| } |
| |
| void CJS_Runtime::SetFormFillEnvToDocument() { |
| v8::Isolate::Scope isolate_scope(GetIsolate()); |
| v8::HandleScope handle_scope(GetIsolate()); |
| v8::Local<v8::Context> context = GetV8Context(); |
| v8::Context::Scope context_scope(context); |
| |
| v8::Local<v8::Object> pThis = GetThisObj(); |
| if (pThis.IsEmpty()) |
| return; |
| |
| auto pJSDocument = JSGetObject<CJS_Document>(pThis); |
| if (!pJSDocument) |
| return; |
| |
| pJSDocument->SetFormFillEnv(m_pFormFillEnv.Get()); |
| } |
| |
| CPDFSDK_FormFillEnvironment* CJS_Runtime::GetFormFillEnv() const { |
| return m_pFormFillEnv.Get(); |
| } |
| |
| Optional<IJS_Runtime::JS_Error> CJS_Runtime::ExecuteScript( |
| const WideString& script) { |
| return Execute(script); |
| } |
| |
| bool CJS_Runtime::AddEventToSet(const FieldEvent& event) { |
| return m_FieldEventSet.insert(event).second; |
| } |
| |
| void CJS_Runtime::RemoveEventFromSet(const FieldEvent& event) { |
| m_FieldEventSet.erase(event); |
| } |
| |
| #ifdef PDF_ENABLE_XFA |
| WideString ChangeObjName(const WideString& str) { |
| WideString sRet = str; |
| sRet.Replace(L"_", L"."); |
| return sRet; |
| } |
| |
| CJS_Runtime* CJS_Runtime::AsCJSRuntime() { |
| return this; |
| } |
| |
| bool CJS_Runtime::GetValueByNameFromGlobalObject(ByteStringView utf8Name, |
| CFXJSE_Value* pValue) { |
| v8::Isolate::Scope isolate_scope(GetIsolate()); |
| v8::HandleScope handle_scope(GetIsolate()); |
| v8::Local<v8::Context> context = GetV8Context(); |
| v8::Context::Scope context_scope(context); |
| v8::Local<v8::String> str = |
| v8::String::NewFromUtf8(GetIsolate(), utf8Name.unterminated_c_str(), |
| v8::NewStringType::kNormal, utf8Name.GetLength()) |
| .ToLocalChecked(); |
| v8::MaybeLocal<v8::Value> maybe_propvalue = |
| context->Global()->Get(context, str); |
| if (maybe_propvalue.IsEmpty()) { |
| pValue->SetUndefined(); |
| return false; |
| } |
| v8::Local<v8::Value> propvalue = maybe_propvalue.ToLocalChecked(); |
| if (propvalue.IsEmpty()) { |
| pValue->SetUndefined(); |
| return false; |
| } |
| pValue->ForceSetValue(propvalue); |
| return true; |
| } |
| |
| bool CJS_Runtime::SetValueByNameInGlobalObject(ByteStringView utf8Name, |
| CFXJSE_Value* pValue) { |
| if (utf8Name.IsEmpty() || !pValue) |
| return false; |
| |
| v8::Isolate* pIsolate = GetIsolate(); |
| v8::Isolate::Scope isolate_scope(pIsolate); |
| v8::HandleScope handle_scope(pIsolate); |
| v8::Local<v8::Context> context = GetV8Context(); |
| v8::Context::Scope context_scope(context); |
| v8::Local<v8::Value> propvalue = |
| v8::Local<v8::Value>::New(pIsolate, pValue->DirectGetValue()); |
| v8::Local<v8::String> str = |
| v8::String::NewFromUtf8(pIsolate, utf8Name.unterminated_c_str(), |
| v8::NewStringType::kNormal, utf8Name.GetLength()) |
| .ToLocalChecked(); |
| return context->Global()->Set(context, str, propvalue).FromJust(); |
| } |
| #endif |
| |
| v8::Local<v8::Value> CJS_Runtime::MaybeCoerceToNumber( |
| v8::Local<v8::Value> value) { |
| bool bAllowNaN = false; |
| if (value->IsString()) { |
| ByteString bstr = ToWideString(value).ToDefANSI(); |
| if (bstr.GetLength() == 0) |
| return value; |
| if (bstr == "NaN") |
| bAllowNaN = true; |
| } |
| |
| v8::Isolate* pIsolate = GetIsolate(); |
| v8::TryCatch try_catch(pIsolate); |
| v8::MaybeLocal<v8::Number> maybeNum = |
| value->ToNumber(pIsolate->GetCurrentContext()); |
| if (maybeNum.IsEmpty()) |
| return value; |
| |
| v8::Local<v8::Number> num = maybeNum.ToLocalChecked(); |
| if (std::isnan(num->Value()) && !bAllowNaN) |
| return value; |
| |
| return num; |
| } |