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// 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 "JS_Runtime.h"
#include "Consts.h"
#include "Document.h"
#include "Field.h"
#include "Icon.h"
#include "JS_Context.h"
#include "JS_Define.h"
#include "JS_EventHandler.h"
#include "JS_GlobalData.h"
#include "JS_Object.h"
#include "JS_Value.h"
#include "PublicMethods.h"
#include "app.h"
#include "color.h"
#include "console.h"
#include "event.h"
#include "fpdfsdk/include/fsdk_mgr.h" // For CPDFDoc_Environment.
#include "fpdfsdk/include/javascript/IJavaScript.h"
#include "global.h"
#include "report.h"
#include "util.h"
// 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) {
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);
}
m_isolateManaged = FXJS_GetIsolate(&m_isolate);
if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0)
DefineJSObjects();
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();
for (int i = 0, sz = m_ContextArray.GetSize(); i < sz; i++)
delete m_ContextArray.GetAt(i);
m_ContextArray.RemoveAll();
FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects);
m_pApp = NULL;
m_pDocument = NULL;
m_context.Reset();
if (m_isolateManaged)
m_isolate->Dispose();
}
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(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() {
CJS_Context* p = new CJS_Context(this);
m_ContextArray.Add(p);
return p;
}
void CJS_Runtime::ReleaseContext(IJS_Context* pContext) {
CJS_Context* pJSContext = (CJS_Context*)pContext;
for (int i = 0, sz = m_ContextArray.GetSize(); i < sz; i++) {
if (pJSContext == m_ContextArray.GetAt(i)) {
delete pJSContext;
m_ContextArray.RemoveAt(i);
break;
}
}
}
IJS_Context* CJS_Runtime::GetCurrentContext() {
if (!m_ContextArray.GetSize())
return NULL;
return m_ContextArray.GetAt(m_ContextArray.GetSize() - 1);
}
void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc) {
if (m_pDocument != pReaderDoc) {
v8::Isolate::Scope isolate_scope(m_isolate);
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::AddObserver(Observer* observer) {
ASSERT(m_observers.find(observer) == m_observers.end());
m_observers.insert(observer);
}
void CJS_Runtime::RemoveObserver(Observer* observer) {
ASSERT(m_observers.find(observer) != m_observers.end());
m_observers.erase(observer);
}
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