Move xfa/fxjse/ to fxjse/

This makes it clear that fxjse/ is a standalone component and should not be
entangled with other xfa/ components.

BUG=pdfium:506

Review-Url: https://codereview.chromium.org/2056663004

1 files changed, 282 insertions, 0 deletions

diff --git a/fxjse/class.cpp b/fxjse/class.cpp
new file mode 100644
index 0000000000..bb133fba58
--- /dev/null
+++ b/fxjse/class.cpp
@@ -0,0 +1,282 @@
+// 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 "fxjse/include/cfxjse_class.h"
+
+#include "fxjse/context.h"
+#include "fxjse/include/cfxjse_arguments.h"
+#include "fxjse/include/cfxjse_value.h"
+#include "fxjse/scope_inline.h"
+
+static void FXJSE_V8ConstructorCallback_Wrapper(
+    const v8::FunctionCallbackInfo<v8::Value>& info);
+static void FXJSE_V8FunctionCallback_Wrapper(
+    const v8::FunctionCallbackInfo<v8::Value>& info);
+static void FXJSE_V8GetterCallback_Wrapper(
+    v8::Local<v8::String> property,
+    const v8::PropertyCallbackInfo<v8::Value>& info);
+static void FXJSE_V8SetterCallback_Wrapper(
+    v8::Local<v8::String> property,
+    v8::Local<v8::Value> value,
+    const v8::PropertyCallbackInfo<void>& info);
+
+static void FXJSE_V8FunctionCallback_Wrapper(
+    const v8::FunctionCallbackInfo<v8::Value>& info) {
+  const FXJSE_FUNCTION_DESCRIPTOR* lpFunctionInfo =
+      static_cast<FXJSE_FUNCTION_DESCRIPTOR*>(
+          info.Data().As<v8::External>()->Value());
+  if (!lpFunctionInfo) {
+    return;
+  }
+  CFX_ByteStringC szFunctionName(lpFunctionInfo->name);
+  std::unique_ptr<CFXJSE_Value> lpThisValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  lpThisValue->ForceSetValue(info.This());
+  std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate()));
+  CFXJSE_Arguments impl(&info, lpRetValue.get());
+  lpFunctionInfo->callbackProc(lpThisValue.get(), szFunctionName, impl);
+  if (!lpRetValue->DirectGetValue().IsEmpty()) {
+    info.GetReturnValue().Set(lpRetValue->DirectGetValue());
+  }
+}
+
+static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper(
+    const v8::FunctionCallbackInfo<v8::Value>& info) {
+  const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition =
+      static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+          info.Data().As<v8::External>()->Value());
+  if (!lpClassDefinition) {
+    return;
+  }
+  CFX_ByteStringC szFunctionName(lpClassDefinition->name);
+  std::unique_ptr<CFXJSE_Value> lpThisValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  lpThisValue->ForceSetValue(info.This());
+  std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate()));
+  CFXJSE_Arguments impl(&info, lpRetValue.get());
+  lpClassDefinition->constructor(lpThisValue.get(), szFunctionName, impl);
+  if (!lpRetValue->DirectGetValue().IsEmpty()) {
+    info.GetReturnValue().Set(lpRetValue->DirectGetValue());
+  }
+}
+
+static void FXJSE_V8GetterCallback_Wrapper(
+    v8::Local<v8::String> property,
+    const v8::PropertyCallbackInfo<v8::Value>& info) {
+  const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo =
+      static_cast<FXJSE_PROPERTY_DESCRIPTOR*>(
+          info.Data().As<v8::External>()->Value());
+  if (!lpPropertyInfo) {
+    return;
+  }
+  CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
+  std::unique_ptr<CFXJSE_Value> lpThisValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  std::unique_ptr<CFXJSE_Value> lpPropValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  lpThisValue->ForceSetValue(info.This());
+  lpPropertyInfo->getProc(lpThisValue.get(), szPropertyName, lpPropValue.get());
+  info.GetReturnValue().Set(lpPropValue->DirectGetValue());
+}
+
+static void FXJSE_V8SetterCallback_Wrapper(
+    v8::Local<v8::String> property,
+    v8::Local<v8::Value> value,
+    const v8::PropertyCallbackInfo<void>& info) {
+  const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo =
+      static_cast<FXJSE_PROPERTY_DESCRIPTOR*>(
+          info.Data().As<v8::External>()->Value());
+  if (!lpPropertyInfo) {
+    return;
+  }
+  CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
+  std::unique_ptr<CFXJSE_Value> lpThisValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  std::unique_ptr<CFXJSE_Value> lpPropValue(
+      new CFXJSE_Value(info.GetIsolate()));
+  lpThisValue->ForceSetValue(info.This());
+  lpPropValue->ForceSetValue(value);
+  lpPropertyInfo->setProc(lpThisValue.get(), szPropertyName, lpPropValue.get());
+}
+
+static void FXJSE_V8ConstructorCallback_Wrapper(
+    const v8::FunctionCallbackInfo<v8::Value>& info) {
+  const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition =
+      static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+          info.Data().As<v8::External>()->Value());
+  if (!lpClassDefinition) {
+    return;
+  }
+  ASSERT(info.This()->InternalFieldCount());
+  info.This()->SetAlignedPointerInInternalField(0, NULL);
+}
+
+v8::Isolate* CFXJSE_Arguments::GetRuntime() const {
+  return m_pRetValue->GetIsolate();
+}
+
+int32_t CFXJSE_Arguments::GetLength() const {
+  return m_pInfo->Length();
+}
+
+std::unique_ptr<CFXJSE_Value> CFXJSE_Arguments::GetValue(int32_t index) const {
+  std::unique_ptr<CFXJSE_Value> lpArgValue(
+      new CFXJSE_Value(v8::Isolate::GetCurrent()));
+  lpArgValue->ForceSetValue((*m_pInfo)[index]);
+  return lpArgValue;
+}
+
+FX_BOOL CFXJSE_Arguments::GetBoolean(int32_t index) const {
+  return (*m_pInfo)[index]->BooleanValue();
+}
+
+int32_t CFXJSE_Arguments::GetInt32(int32_t index) const {
+  return static_cast<int32_t>((*m_pInfo)[index]->NumberValue());
+}
+
+FX_FLOAT CFXJSE_Arguments::GetFloat(int32_t index) const {
+  return static_cast<FX_FLOAT>((*m_pInfo)[index]->NumberValue());
+}
+
+CFX_ByteString CFXJSE_Arguments::GetUTF8String(int32_t index) const {
+  v8::Local<v8::String> hString = (*m_pInfo)[index]->ToString();
+  v8::String::Utf8Value szStringVal(hString);
+  return CFX_ByteString(*szStringVal);
+}
+
+CFXJSE_HostObject* CFXJSE_Arguments::GetObject(int32_t index,
+                                               CFXJSE_Class* pClass) const {
+  v8::Local<v8::Value> hValue = (*m_pInfo)[index];
+  ASSERT(!hValue.IsEmpty());
+  if (!hValue->IsObject())
+    return nullptr;
+  return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), pClass);
+}
+
+CFXJSE_Value* CFXJSE_Arguments::GetReturnValue() {
+  return m_pRetValue;
+}
+
+static void FXJSE_Context_GlobalObjToString(
+    const v8::FunctionCallbackInfo<v8::Value>& info) {
+  const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+      info.Data().As<v8::External>()->Value());
+  if (!lpClass) {
+    return;
+  }
+  if (info.This() == info.Holder() && lpClass->name) {
+    CFX_ByteString szStringVal;
+    szStringVal.Format("[object %s]", lpClass->name);
+    info.GetReturnValue().Set(v8::String::NewFromUtf8(
+        info.GetIsolate(), szStringVal.c_str(), v8::String::kNormalString,
+        szStringVal.GetLength()));
+  } else {
+    v8::Local<v8::String> local_str =
+        info.This()
+            ->ObjectProtoToString(info.GetIsolate()->GetCurrentContext())
+            .FromMaybe(v8::Local<v8::String>());
+    info.GetReturnValue().Set(local_str);
+  }
+}
+
+CFXJSE_Class* CFXJSE_Class::Create(
+    CFXJSE_Context* lpContext,
+    const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition,
+    FX_BOOL bIsJSGlobal) {
+  if (!lpContext || !lpClassDefinition) {
+    return NULL;
+  }
+  CFXJSE_Class* pClass =
+      GetClassFromContext(lpContext, lpClassDefinition->name);
+  if (pClass) {
+    return pClass;
+  }
+  v8::Isolate* pIsolate = lpContext->m_pIsolate;
+  pClass = new CFXJSE_Class(lpContext);
+  pClass->m_szClassName = lpClassDefinition->name;
+  pClass->m_lpClassDefinition = lpClassDefinition;
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate);
+  v8::Local<v8::FunctionTemplate> hFunctionTemplate = v8::FunctionTemplate::New(
+      pIsolate, bIsJSGlobal ? 0 : FXJSE_V8ConstructorCallback_Wrapper,
+      v8::External::New(
+          pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition)));
+  hFunctionTemplate->SetClassName(
+      v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name));
+  hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1);
+  v8::Local<v8::ObjectTemplate> hObjectTemplate =
+      hFunctionTemplate->InstanceTemplate();
+  SetUpNamedPropHandler(pIsolate, hObjectTemplate, lpClassDefinition);
+
+  if (lpClassDefinition->propNum) {
+    for (int32_t i = 0; i < lpClassDefinition->propNum; i++) {
+      hObjectTemplate->SetNativeDataProperty(
+          v8::String::NewFromUtf8(pIsolate,
+                                  lpClassDefinition->properties[i].name),
+          lpClassDefinition->properties[i].getProc
+              ? FXJSE_V8GetterCallback_Wrapper
+              : NULL,
+          lpClassDefinition->properties[i].setProc
+              ? FXJSE_V8SetterCallback_Wrapper
+              : NULL,
+          v8::External::New(pIsolate, const_cast<FXJSE_PROPERTY_DESCRIPTOR*>(
+                                          lpClassDefinition->properties + i)),
+          static_cast<v8::PropertyAttribute>(v8::DontDelete));
+    }
+  }
+  if (lpClassDefinition->methNum) {
+    for (int32_t i = 0; i < lpClassDefinition->methNum; i++) {
+      hObjectTemplate->Set(
+          v8::String::NewFromUtf8(pIsolate, lpClassDefinition->methods[i].name),
+          v8::FunctionTemplate::New(
+              pIsolate, FXJSE_V8FunctionCallback_Wrapper,
+              v8::External::New(pIsolate,
+                                const_cast<FXJSE_FUNCTION_DESCRIPTOR*>(
+                                    lpClassDefinition->methods + i))),
+          static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+    }
+  }
+  if (lpClassDefinition->constructor) {
+    if (bIsJSGlobal) {
+      hObjectTemplate->Set(
+          v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
+          v8::FunctionTemplate::New(
+              pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
+              v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(
+                                              lpClassDefinition))),
+          static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+    } else {
+      v8::Local<v8::Context> hLocalContext =
+          v8::Local<v8::Context>::New(pIsolate, lpContext->m_hContext);
+      FXJSE_GetGlobalObjectFromContext(hLocalContext)
+          ->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
+                v8::Function::New(
+                    pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
+                    v8::External::New(pIsolate,
+                                      const_cast<FXJSE_CLASS_DESCRIPTOR*>(
+                                          lpClassDefinition))));
+    }
+  }
+  if (bIsJSGlobal) {
+    hObjectTemplate->Set(
+        v8::String::NewFromUtf8(pIsolate, "toString"),
+        v8::FunctionTemplate::New(
+            pIsolate, FXJSE_Context_GlobalObjToString,
+            v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(
+                                            lpClassDefinition))));
+  }
+  pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate);
+  lpContext->m_rgClasses.push_back(std::unique_ptr<CFXJSE_Class>(pClass));
+  return pClass;
+}
+
+CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext,
+                                                const CFX_ByteStringC& szName) {
+  for (const auto& pClass : pContext->m_rgClasses) {
+    if (pClass->m_szClassName == szName)
+      return pClass.get();
+  }
+  return nullptr;
+}