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Diffstat (limited to 'fxjs/cjs_runtime.cpp')
| -rw-r--r-- | fxjs/cjs_runtime.cpp | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/fxjs/cjs_runtime.cpp b/fxjs/cjs_runtime.cpp new file mode 100644 index 0000000000..6043debc44 --- /dev/null +++ b/fxjs/cjs_runtime.cpp @@ -0,0 +1,292 @@ +// 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/JS_Define.h" +#include "fxjs/JS_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_printparamsobj.h" +#include "fxjs/cjs_publicmethods.h" +#include "fxjs/cjs_report.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 "public/fpdf_formfill.h" +#include "third_party/base/stl_util.h" + +#ifdef PDF_ENABLE_XFA +#include "fxjs/cfxjse_value.h" +#endif // PDF_ENABLE_XFA + +// static +void IJS_Runtime::Initialize(unsigned int slot, void* isolate) { + FXJS_Initialize(slot, reinterpret_cast<v8::Isolate*>(isolate)); +} + +// static +void IJS_Runtime::Destroy() { + FXJS_Release(); +} + +// static +IJS_Runtime* IJS_Runtime::Create(CPDFSDK_FormFillEnvironment* pFormFillEnv) { + return new CJS_Runtime(pFormFillEnv); +} + +// static +CJS_Runtime* CJS_Runtime::CurrentRuntimeFromIsolate(v8::Isolate* pIsolate) { + return static_cast<CJS_Runtime*>( + CFXJS_Engine::CurrentEngineFromIsolate(pIsolate)); +} + +CJS_Runtime::CJS_Runtime(CPDFSDK_FormFillEnvironment* pFormFillEnv) + : m_pFormFillEnv(pFormFillEnv), + m_bBlocking(false), + m_isolateManaged(false) { + 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 = reinterpret_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(); + + IJS_EventContext* pContext = NewEventContext(); + InitializeEngine(); + ReleaseEventContext(pContext); + SetFormFillEnvToDocument(); +} + +CJS_Runtime::~CJS_Runtime() { + NotifyObservedPtrs(); + ReleaseEngine(); + if (m_isolateManaged) { + GetIsolate()->Dispose(); + SetIsolate(nullptr); + } +} + +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 - 23. + CJS_TimerObj::DefineJSObjects(this); + CJS_PrintParamsObj::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) { + auto it = std::find(m_EventContextArray.begin(), m_EventContextArray.end(), + pdfium::FakeUniquePtr<CJS_EventContext>( + static_cast<CJS_EventContext*>(pContext))); + if (it != m_EventContextArray.end()) + m_EventContextArray.erase(it); +} + +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 = NewLocalContext(); + v8::Context::Scope context_scope(context); + + v8::Local<v8::Object> pThis = GetThisObj(); + if (pThis.IsEmpty()) + return; + + if (CFXJS_Engine::GetObjDefnID(pThis) != CJS_Document::GetObjDefnID()) + return; + + CJS_Document* pJSDocument = + static_cast<CJS_Document*>(GetObjectPrivate(pThis)); + if (!pJSDocument) + return; + + Document* pDocument = static_cast<Document*>(pJSDocument->GetEmbedObject()); + if (!pDocument) + return; + + pDocument->SetFormFillEnv(m_pFormFillEnv.Get()); +} + +CPDFSDK_FormFillEnvironment* CJS_Runtime::GetFormFillEnv() const { + return m_pFormFillEnv.Get(); +} + +int CJS_Runtime::ExecuteScript(const WideString& script, WideString* info) { + FXJSErr error = {}; + int nRet = Execute(script, &error); + if (nRet < 0) { + info->Format(L"[ Line: %05d { %s } ] : %s", error.linnum - 1, error.srcline, + error.message); + } + return nRet; +} + +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; +} + +bool CJS_Runtime::GetValueByName(const ByteStringView& utf8Name, + CFXJSE_Value* pValue) { + v8::Isolate::Scope isolate_scope(GetIsolate()); + v8::HandleScope handle_scope(GetIsolate()); + v8::Local<v8::Context> context = NewLocalContext(); + v8::Context::Scope context_scope(context); + v8::Local<v8::Value> propvalue = context->Global()->Get( + v8::String::NewFromUtf8(GetIsolate(), utf8Name.unterminated_c_str(), + v8::String::kNormalString, utf8Name.GetLength())); + if (propvalue.IsEmpty()) { + pValue->SetUndefined(); + return false; + } + pValue->ForceSetValue(propvalue); + return true; +} + +bool CJS_Runtime::SetValueByName(const 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 = NewLocalContext(); + v8::Context::Scope context_scope(context); + v8::Local<v8::Value> propvalue = + v8::Local<v8::Value>::New(GetIsolate(), pValue->DirectGetValue()); + context->Global()->Set( + v8::String::NewFromUtf8(pIsolate, utf8Name.unterminated_c_str(), + v8::String::kNormalString, utf8Name.GetLength()), + propvalue); + return true; +} +#endif + +v8::Local<v8::Value> CJS_Runtime::MaybeCoerceToNumber( + v8::Local<v8::Value> value) { + bool bAllowNaN = false; + if (value->IsString()) { + ByteString bstr = ByteString::FromUnicode(ToWideString(value)); + 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; +} |