| // Copyright 2014 The PDFium Authors |
| // 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 <math.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_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/fxv8.h" |
| #include "fxjs/js_define.h" |
| #include "third_party/base/check_op.h" |
| #include "v8/include/v8-context.h" |
| #include "v8/include/v8-exception.h" |
| #include "v8/include/v8-isolate.h" |
| |
| 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) { |
| // Backwards compatibility - JS now initialized earlier in more modern |
| // JSPLATFORM versions. |
| 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); |
| |
| v8::Isolate::Scope isolate_scope(pIsolate); |
| v8::HandleScope handle_scope(pIsolate); |
| 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(std::make_unique<CJS_EventContext>(this)); |
| return m_EventContextArray.back().get(); |
| } |
| |
| void CJS_Runtime::ReleaseEventContext(IJS_EventContext* pContext) { |
| DCHECK_EQ(pContext, m_EventContextArray.back().get()); |
| m_EventContextArray.pop_back(); |
| } |
| |
| CJS_EventContext* CJS_Runtime::GetCurrentEventContext() const { |
| return m_EventContextArray.empty() ? nullptr |
| : m_EventContextArray.back().get(); |
| } |
| |
| CFX_Timer::HandlerIface* CJS_Runtime::GetTimerHandler() const { |
| return m_pFormFillEnv ? m_pFormFillEnv->GetTimerHandler() : nullptr; |
| } |
| |
| 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>(GetIsolate(), pThis); |
| if (!pJSDocument) |
| return; |
| |
| pJSDocument->SetFormFillEnv(m_pFormFillEnv.Get()); |
| } |
| |
| CPDFSDK_FormFillEnvironment* CJS_Runtime::GetFormFillEnv() const { |
| return m_pFormFillEnv.Get(); |
| } |
| |
| absl::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); |
| } |
| |
| CJS_Runtime* CJS_Runtime::AsCJSRuntime() { |
| return this; |
| } |
| |
| v8::Local<v8::Value> CJS_Runtime::GetValueByNameFromGlobalObject( |
| ByteStringView utf8Name) { |
| v8::Isolate::Scope isolate_scope(GetIsolate()); |
| v8::Local<v8::Context> context = GetV8Context(); |
| v8::Context::Scope context_scope(context); |
| v8::Local<v8::String> str = fxv8::NewStringHelper(GetIsolate(), utf8Name); |
| v8::MaybeLocal<v8::Value> maybe_value = context->Global()->Get(context, str); |
| if (maybe_value.IsEmpty()) |
| return v8::Local<v8::Value>(); |
| return maybe_value.ToLocalChecked(); |
| } |
| |
| bool CJS_Runtime::SetValueByNameInGlobalObject(ByteStringView utf8Name, |
| v8::Local<v8::Value> pValue) { |
| if (utf8Name.IsEmpty() || pValue.IsEmpty()) |
| return false; |
| |
| v8::Isolate* pIsolate = GetIsolate(); |
| v8::Isolate::Scope isolate_scope(pIsolate); |
| v8::Local<v8::Context> context = GetV8Context(); |
| v8::Context::Scope context_scope(context); |
| v8::Local<v8::String> str = fxv8::NewStringHelper(pIsolate, utf8Name); |
| v8::Maybe<bool> result = context->Global()->Set(context, str, pValue); |
| return result.IsJust() && result.FromJust(); |
| } |
| |
| v8::Local<v8::Value> CJS_Runtime::MaybeCoerceToNumber( |
| v8::Local<v8::Value> value) { |
| bool bAllowNaN = false; |
| if (value->IsString()) { |
| ByteString bstr = fxv8::ToByteString(GetIsolate(), value.As<v8::String>()); |
| if (bstr.IsEmpty()) |
| return value; |
| if (bstr == "NaN") |
| bAllowNaN = true; |
| } |
| |
| v8::TryCatch try_catch(GetIsolate()); |
| v8::MaybeLocal<v8::Number> maybeNum = |
| value->ToNumber(GetIsolate()->GetCurrentContext()); |
| if (maybeNum.IsEmpty()) |
| return value; |
| |
| v8::Local<v8::Number> num = maybeNum.ToLocalChecked(); |
| if (isnan(num->Value()) && !bAllowNaN) |
| return value; |
| |
| return num; |
| } |