1 files changed, 105 insertions, 0 deletions
diff --git a/fxjs/cfxjse_runtimedata.cpp b/fxjs/cfxjse_runtimedata.cpp
new file mode 100644
index 0000000000..f58f5f852d
--- /dev/null
+++ b/fxjs/cfxjse_runtimedata.cpp
@@ -0,0 +1,105 @@
+// Copyright 2016 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/cfxjse_runtimedata.h"
+
+#include "fpdfsdk/jsapi/include/fxjs_v8.h"
+#include "fxjs/cfxjse_isolatetracker.h"
+
+namespace {
+
+// Duplicates fpdfsdk's cjs_runtime.h, but keeps XFA from depending on it.
+// TODO(tsepez): make a single version of this.
+class FXJSE_ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
+  void* Allocate(size_t length) override { return calloc(1, length); }
+  void* AllocateUninitialized(size_t length) override { return malloc(length); }
+  void Free(void* data, size_t length) override { free(data); }
+};
+
+void Runtime_DisposeCallback(v8::Isolate* pIsolate, bool bOwned) {
+  if (FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate)) {
+    delete pData->m_pFXJSERuntimeData;
+    pData->m_pFXJSERuntimeData = nullptr;
+  }
+  if (bOwned)
+    pIsolate->Dispose();
+}
+
+void KillV8() {
+  v8::V8::Dispose();
+}
+
+}  // namespace
+
+void FXJSE_Initialize() {
+  if (!CFXJSE_IsolateTracker::g_pInstance)
+    CFXJSE_IsolateTracker::g_pInstance = new CFXJSE_IsolateTracker;
+
+  static FX_BOOL bV8Initialized = FALSE;
+  if (bV8Initialized)
+    return;
+
+  bV8Initialized = TRUE;
+  atexit(KillV8);
+}
+
+void FXJSE_Finalize() {
+  if (!CFXJSE_IsolateTracker::g_pInstance)
+    return;
+
+  CFXJSE_IsolateTracker::g_pInstance->RemoveAll(Runtime_DisposeCallback);
+  delete CFXJSE_IsolateTracker::g_pInstance;
+  CFXJSE_IsolateTracker::g_pInstance = nullptr;
+}
+
+v8::Isolate* FXJSE_Runtime_Create_Own() {
+  v8::Isolate::CreateParams params;
+  params.array_buffer_allocator = new FXJSE_ArrayBufferAllocator();
+  v8::Isolate* pIsolate = v8::Isolate::New(params);
+  ASSERT(pIsolate && CFXJSE_IsolateTracker::g_pInstance);
+  CFXJSE_IsolateTracker::g_pInstance->Append(pIsolate);
+  return pIsolate;
+}
+
+void FXJSE_Runtime_Release(v8::Isolate* pIsolate) {
+  if (!pIsolate)
+    return;
+  CFXJSE_IsolateTracker::g_pInstance->Remove(pIsolate, Runtime_DisposeCallback);
+}
+
+CFXJSE_RuntimeData::CFXJSE_RuntimeData(v8::Isolate* pIsolate)
+    : m_pIsolate(pIsolate) {}
+
+CFXJSE_RuntimeData::~CFXJSE_RuntimeData() {}
+
+CFXJSE_RuntimeData* CFXJSE_RuntimeData::Create(v8::Isolate* pIsolate) {
+  CFXJSE_RuntimeData* pRuntimeData = new CFXJSE_RuntimeData(pIsolate);
+  CFXJSE_ScopeUtil_IsolateHandle scope(pIsolate);
+  v8::Local<v8::FunctionTemplate> hFuncTemplate =
+      v8::FunctionTemplate::New(pIsolate);
+  v8::Local<v8::ObjectTemplate> hGlobalTemplate =
+      hFuncTemplate->InstanceTemplate();
+  hGlobalTemplate->Set(
+      v8::Symbol::GetToStringTag(pIsolate),
+      v8::String::NewFromUtf8(pIsolate, "global", v8::NewStringType::kNormal)
+          .ToLocalChecked());
+  v8::Local<v8::Context> hContext =
+      v8::Context::New(pIsolate, 0, hGlobalTemplate);
+  hContext->SetSecurityToken(v8::External::New(pIsolate, pIsolate));
+  pRuntimeData->m_hRootContextGlobalTemplate.Reset(pIsolate, hFuncTemplate);
+  pRuntimeData->m_hRootContext.Reset(pIsolate, hContext);
+  return pRuntimeData;
+}
+
+CFXJSE_RuntimeData* CFXJSE_RuntimeData::Get(v8::Isolate* pIsolate) {
+  FXJS_PerIsolateData::SetUp(pIsolate);
+  FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
+  if (!pData->m_pFXJSERuntimeData)
+    pData->m_pFXJSERuntimeData = CFXJSE_RuntimeData::Create(pIsolate);
+  return pData->m_pFXJSERuntimeData;
+}
+
+CFXJSE_IsolateTracker* CFXJSE_IsolateTracker::g_pInstance = nullptr;