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-rw-r--r--xfa/fxjse/runtime.cpp128
1 files changed, 128 insertions, 0 deletions
diff --git a/xfa/fxjse/runtime.cpp b/xfa/fxjse/runtime.cpp
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+++ b/xfa/fxjse/runtime.cpp
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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 "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();
+}