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Diffstat (limited to 'fpdfsdk/javascript/cjs_runtime.cpp')
| -rw-r--r-- | fpdfsdk/javascript/cjs_runtime.cpp | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/fpdfsdk/javascript/cjs_runtime.cpp b/fpdfsdk/javascript/cjs_runtime.cpp new file mode 100644 index 0000000000..9c616e6c0e --- /dev/null +++ b/fpdfsdk/javascript/cjs_runtime.cpp @@ -0,0 +1,333 @@ +// 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 "fpdfsdk/javascript/cjs_runtime.h" + +#include <algorithm> + +#include "fpdfsdk/include/fsdk_mgr.h" +#include "fpdfsdk/javascript/Consts.h" +#include "fpdfsdk/javascript/Document.h" +#include "fpdfsdk/javascript/Field.h" +#include "fpdfsdk/javascript/Icon.h" +#include "fpdfsdk/javascript/cjs_context.h" +#include "fpdfsdk/javascript/JS_Define.h" +#include "fpdfsdk/javascript/JS_EventHandler.h" +#include "fpdfsdk/javascript/JS_GlobalData.h" +#include "fpdfsdk/javascript/JS_Object.h" +#include "fpdfsdk/javascript/JS_Value.h" +#include "fpdfsdk/javascript/PublicMethods.h" +#include "fpdfsdk/javascript/app.h" +#include "fpdfsdk/javascript/color.h" +#include "fpdfsdk/javascript/console.h" +#include "fpdfsdk/javascript/event.h" +#include "fpdfsdk/javascript/global.h" +#include "fpdfsdk/javascript/report.h" +#include "fpdfsdk/javascript/util.h" +#include "third_party/base/stl_util.h" + +#ifdef PDF_ENABLE_XFA +#include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h" +#include "xfa/fxjse/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 +IJS_Runtime* IJS_Runtime::Create(CPDFDoc_Environment* pEnv) { + return new CJS_Runtime(pEnv); +} + +// static +CJS_Runtime* CJS_Runtime::FromContext(const IJS_Context* cc) { + const CJS_Context* pContext = static_cast<const CJS_Context*>(cc); + return pContext->GetJSRuntime(); +} + +CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp) + : m_pApp(pApp), + m_pDocument(NULL), + m_bBlocking(FALSE), + m_isolate(NULL), + m_isolateManaged(false) { +#ifndef PDF_ENABLE_XFA + IPDF_JSPLATFORM* pPlatform = m_pApp->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; +#else + if (CPDFXFA_App::GetInstance()->GetJSERuntime()) { + // TODO(tsepez): CPDFXFA_App should also use the embedder provided isolate. + m_isolate = (v8::Isolate*)CPDFXFA_App::GetInstance()->GetJSERuntime(); + } else { + IPDF_JSPLATFORM* pPlatform = m_pApp->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); +#endif + } +#ifndef PDF_ENABLE_XFA + FXJS_Initialize(embedderDataSlot, pExternalIsolate); +#else + m_isolateManaged = FXJS_GetIsolate(&m_isolate); + } + + v8::Isolate* isolate = m_isolate; + v8::Isolate::Scope isolate_scope(isolate); + v8::Locker locker(isolate); + v8::HandleScope handle_scope(isolate); + if (CPDFXFA_App::GetInstance()->IsJavaScriptInitialized()) { + CJS_Context* pContext = (CJS_Context*)NewContext(); + FXJS_InitializeRuntime(GetIsolate(), this, &m_context, &m_StaticObjects); + ReleaseContext(pContext); + return; +#endif + } +#ifndef PDF_ENABLE_XFA + m_isolateManaged = FXJS_GetIsolate(&m_isolate); +#else + +#endif + if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0) + DefineJSObjects(); + +#ifdef PDF_ENABLE_XFA + CPDFXFA_App::GetInstance()->SetJavaScriptInitialized(TRUE); + +#endif + CJS_Context* pContext = (CJS_Context*)NewContext(); + FXJS_InitializeRuntime(GetIsolate(), this, &m_context, &m_StaticObjects); + ReleaseContext(pContext); +} + +CJS_Runtime::~CJS_Runtime() { + for (auto* obs : m_observers) + obs->OnDestroyed(); + + m_ContextArray.clear(); + m_ConstArrays.clear(); + FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects); + m_context.Reset(); + if (m_isolateManaged) + m_isolate->Dispose(); +} + +void CJS_Runtime::DefineJSObjects() { + v8::Isolate::Scope isolate_scope(GetIsolate()); +#ifdef PDF_ENABLE_XFA + v8::Locker locker(GetIsolate()); +#endif + 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(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Display::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Font::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + + // ObjDefIDs 3 - 5 + CJS_Highlight::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Position::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_ScaleHow::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + + // ObjDefIDs 6 - 8 + CJS_ScaleWhen::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Style::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Zoomtype::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + + // ObjDefIDs 9 - 11 + CJS_App::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Color::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Console::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + + // ObjDefIDs 12 - 14 + CJS_Document::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_GLOBAL); + CJS_Event::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Field::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); + + // ObjDefIDs 15 - 17 + CJS_Global::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + CJS_Icon::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); + CJS_Util::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); + + // ObjDefIDs 18 - 20 (these can't fail, return void). + CJS_PublicMethods::DefineJSObjects(GetIsolate()); + CJS_GlobalConsts::DefineJSObjects(this); + CJS_GlobalArrays::DefineJSObjects(this); + + // ObjDefIDs 21 - 22. + CJS_TimerObj::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); + CJS_PrintParamsObj::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); +} + +IJS_Context* CJS_Runtime::NewContext() { + m_ContextArray.push_back(std::unique_ptr<CJS_Context>(new CJS_Context(this))); + return m_ContextArray.back().get(); +} + +void CJS_Runtime::ReleaseContext(IJS_Context* pContext) { + for (auto it = m_ContextArray.begin(); it != m_ContextArray.end(); ++it) { + if (it->get() == static_cast<CJS_Context*>(pContext)) { + m_ContextArray.erase(it); + return; + } + } +} + +IJS_Context* CJS_Runtime::GetCurrentContext() { + return m_ContextArray.empty() ? nullptr : m_ContextArray.back().get(); +} + +void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc) { + if (m_pDocument != pReaderDoc) { + v8::Isolate::Scope isolate_scope(m_isolate); +#ifdef PDF_ENABLE_XFA + v8::Locker locker(m_isolate); +#endif + v8::HandleScope handle_scope(m_isolate); + v8::Local<v8::Context> context = + v8::Local<v8::Context>::New(m_isolate, m_context); + v8::Context::Scope context_scope(context); + + m_pDocument = pReaderDoc; + if (pReaderDoc) { + v8::Local<v8::Object> pThis = FXJS_GetThisObj(GetIsolate()); + if (!pThis.IsEmpty()) { + if (FXJS_GetObjDefnID(pThis) == CJS_Document::g_nObjDefnID) { + if (CJS_Document* pJSDocument = + (CJS_Document*)FXJS_GetPrivate(GetIsolate(), pThis)) { + if (Document* pDocument = (Document*)pJSDocument->GetEmbedObject()) + pDocument->AttachDoc(pReaderDoc); + } + } + } + } + } +} + +int CJS_Runtime::Execute(IJS_Context* cc, + const wchar_t* script, + CFX_WideString* info) { + FXJSErr error = {}; + int nRet = FXJS_Execute(m_isolate, cc, 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); +} + +v8::Local<v8::Context> CJS_Runtime::NewJSContext() { + return v8::Local<v8::Context>::New(m_isolate, m_context); +} + +void CJS_Runtime::SetConstArray(const CFX_WideString& name, + v8::Local<v8::Array> array) { + m_ConstArrays[name] = v8::Global<v8::Array>(m_isolate, array); +} + +v8::Local<v8::Array> CJS_Runtime::GetConstArray(const CFX_WideString& name) { + return v8::Local<v8::Array>::New(m_isolate, m_ConstArrays[name]); +} + +#ifdef PDF_ENABLE_XFA +CFX_WideString ChangeObjName(const CFX_WideString& str) { + CFX_WideString sRet = str; + sRet.Replace(L"_", L"."); + return sRet; +} +FX_BOOL CJS_Runtime::GetHValueByName(const CFX_ByteStringC& utf8Name, + FXJSE_HVALUE hValue) { +#ifdef PDF_ENABLE_XFA + const FX_CHAR* name = utf8Name.GetCStr(); + + v8::Locker lock(GetIsolate()); + v8::Isolate::Scope isolate_scope(GetIsolate()); + v8::HandleScope handle_scope(GetIsolate()); + v8::Local<v8::Context> old_context = GetIsolate()->GetCurrentContext(); + v8::Local<v8::Context> context = + v8::Local<v8::Context>::New(GetIsolate(), m_context); + v8::Context::Scope context_scope(context); + + // Caution: We're about to hand to XFA an object that in order to invoke + // methods will require that the current v8::Context always has a pointer + // to a CJS_Runtime in its embedder data slot. Unfortunately, XFA creates + // its own v8::Context which has not initialized the embedder data slot. + // Do so now. + // TODO(tsepez): redesign PDF-side objects to not rely on v8::Context's + // embedder data slots, and/or to always use the right context. + FXJS_SetRuntimeForV8Context(old_context, this); + + v8::Local<v8::Value> propvalue = + context->Global()->Get(v8::String::NewFromUtf8( + GetIsolate(), name, v8::String::kNormalString, utf8Name.GetLength())); + + if (propvalue.IsEmpty()) { + FXJSE_Value_SetUndefined(hValue); + return FALSE; + } + ((CFXJSE_Value*)hValue)->ForceSetValue(propvalue); +#endif + + return TRUE; +} +FX_BOOL CJS_Runtime::SetHValueByName(const CFX_ByteStringC& utf8Name, + FXJSE_HVALUE hValue) { +#ifdef PDF_ENABLE_XFA + if (utf8Name.IsEmpty() || hValue == NULL) + return FALSE; + const FX_CHAR* name = utf8Name.GetCStr(); + v8::Isolate* pIsolate = GetIsolate(); + v8::Locker lock(pIsolate); + v8::Isolate::Scope isolate_scope(pIsolate); + v8::HandleScope handle_scope(pIsolate); + v8::Local<v8::Context> context = + v8::Local<v8::Context>::New(pIsolate, m_context); + v8::Context::Scope context_scope(context); + + // v8::Local<v8::Context> tmpCotext = + // v8::Local<v8::Context>::New(GetIsolate(), m_context); + v8::Local<v8::Value> propvalue = v8::Local<v8::Value>::New( + GetIsolate(), ((CFXJSE_Value*)hValue)->DirectGetValue()); + context->Global()->Set( + v8::String::NewFromUtf8(pIsolate, name, v8::String::kNormalString, + utf8Name.GetLength()), + propvalue); +#endif + return TRUE; +} + +#endif +void CJS_Runtime::AddObserver(Observer* observer) { + ASSERT(!pdfium::ContainsKey(m_observers, observer)); + m_observers.insert(observer); +} + +void CJS_Runtime::RemoveObserver(Observer* observer) { + ASSERT(pdfium::ContainsKey(m_observers, observer)); + m_observers.erase(observer); +} |