1 files changed, 128 insertions, 0 deletions
diff --git a/xfa/fxjse/runtime.cpp b/xfa/fxjse/runtime.cpp
new file mode 100644
index 0000000000..a1472c7d8f
--- /dev/null
+++ b/xfa/fxjse/runtime.cpp
@@ -0,0 +1,128 @@
+// 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 "xfa/fxjse/runtime.h"
+
+#include "fpdfsdk/include/jsapi/fxjs_v8.h"
+#include "xfa/fxjse/scope_inline.h"
+
+// Duplicates fpdfsdk's JS_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); }
+};
+
+static void FXJSE_KillV8() {
+  v8::V8::Dispose();
+}
+
+void FXJSE_Initialize() {
+  if (!CFXJSE_RuntimeData::g_RuntimeList) {
+    CFXJSE_RuntimeData::g_RuntimeList = new CFXJSE_RuntimeList;
+  }
+  static FX_BOOL bV8Initialized = FALSE;
+  if (bV8Initialized) {
+    return;
+  }
+  bV8Initialized = TRUE;
+  atexit(FXJSE_KillV8);
+}
+
+static void FXJSE_Runtime_DisposeCallback(v8::Isolate* pIsolate) {
+  {
+    v8::Locker locker(pIsolate);
+    if (FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate)) {
+      delete pData->m_pFXJSERuntimeData;
+      pData->m_pFXJSERuntimeData = nullptr;
+    }
+  }
+  pIsolate->Dispose();
+}
+
+void FXJSE_Finalize() {
+  if (CFXJSE_RuntimeData::g_RuntimeList) {
+    CFXJSE_RuntimeData::g_RuntimeList->RemoveAllRuntimes(
+        FXJSE_Runtime_DisposeCallback);
+    delete CFXJSE_RuntimeData::g_RuntimeList;
+    CFXJSE_RuntimeData::g_RuntimeList = NULL;
+  }
+}
+
+FXJSE_HRUNTIME FXJSE_Runtime_Create() {
+  v8::Isolate::CreateParams params;
+  params.array_buffer_allocator = new FXJSE_ArrayBufferAllocator();
+  v8::Isolate* pIsolate = v8::Isolate::New(params);
+  ASSERT(pIsolate && CFXJSE_RuntimeData::g_RuntimeList);
+  CFXJSE_RuntimeData::g_RuntimeList->AppendRuntime(pIsolate);
+  return reinterpret_cast<FXJSE_HRUNTIME>(pIsolate);
+}
+
+void FXJSE_Runtime_Release(FXJSE_HRUNTIME hRuntime, bool bOwnedRuntime) {
+  v8::Isolate* pIsolate = reinterpret_cast<v8::Isolate*>(hRuntime);
+  if (!pIsolate)
+    return;
+  if (bOwnedRuntime) {
+    ASSERT(CFXJSE_RuntimeData::g_RuntimeList);
+    CFXJSE_RuntimeData::g_RuntimeList->RemoveRuntime(
+        pIsolate, FXJSE_Runtime_DisposeCallback);
+  } else {
+    if (FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate)) {
+      delete pData->m_pFXJSERuntimeData;
+      pData->m_pFXJSERuntimeData = nullptr;
+    }
+  }
+}
+
+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::Context> hContext =
+      v8::Context::New(pIsolate, 0, hFuncTemplate->InstanceTemplate());
+  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_RuntimeList* CFXJSE_RuntimeData::g_RuntimeList = NULL;
+void CFXJSE_RuntimeList::AppendRuntime(v8::Isolate* pIsolate) {
+  m_RuntimeList.Add(pIsolate);
+}
+
+void CFXJSE_RuntimeList::RemoveRuntime(
+    v8::Isolate* pIsolate,
+    CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback) {
+  int32_t iIdx = m_RuntimeList.Find(pIsolate, 0);
+  if (iIdx >= 0) {
+    m_RuntimeList.RemoveAt(iIdx, 1);
+  }
+  if (lpfnDisposeCallback) {
+    lpfnDisposeCallback(pIsolate);
+  }
+}
+
+void CFXJSE_RuntimeList::RemoveAllRuntimes(
+    CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback) {
+  int32_t iSize = m_RuntimeList.GetSize();
+  if (lpfnDisposeCallback) {
+    for (int32_t iIdx = 0; iIdx < iSize; iIdx++) {
+      lpfnDisposeCallback(m_RuntimeList[iIdx]);
+    }
+  }
+  m_RuntimeList.RemoveAll();
+}