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, 297 insertions, 0 deletions

diff --git a/fxjse/value.cpp b/fxjse/value.cpp
new file mode 100644
index 0000000000..a49ee312f3
--- /dev/null
+++ b/fxjse/value.cpp
@@ -0,0 +1,297 @@
+// 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_value.h"
+
+#include <math.h>
+
+#include "fxjse/context.h"
+#include "fxjse/include/cfxjse_class.h"
+
+void FXJSE_ThrowMessage(const CFX_ByteStringC& utf8Message) {
+  v8::Isolate* pIsolate = v8::Isolate::GetCurrent();
+  ASSERT(pIsolate);
+
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate);
+  v8::Local<v8::String> hMessage = v8::String::NewFromUtf8(
+      pIsolate, utf8Message.c_str(), v8::String::kNormalString,
+      utf8Message.GetLength());
+  v8::Local<v8::Value> hError = v8::Exception::Error(hMessage);
+  pIsolate->ThrowException(hError);
+}
+
+CFXJSE_HostObject* CFXJSE_Value::ToHostObject(CFXJSE_Class* lpClass) const {
+  ASSERT(!m_hValue.IsEmpty());
+
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> pValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  ASSERT(!pValue.IsEmpty());
+
+  if (!pValue->IsObject())
+    return nullptr;
+
+  return FXJSE_RetrieveObjectBinding(pValue.As<v8::Object>(), lpClass);
+}
+
+void CFXJSE_Value::SetObject(CFXJSE_HostObject* lpObject,
+                             CFXJSE_Class* pClass) {
+  if (!pClass) {
+    ASSERT(!lpObject);
+    SetJSObject();
+    return;
+  }
+  SetHostObject(lpObject, pClass);
+}
+
+void CFXJSE_Value::SetHostObject(CFXJSE_HostObject* lpObject,
+                                 CFXJSE_Class* lpClass) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  ASSERT(lpClass);
+  v8::Local<v8::FunctionTemplate> hClass =
+      v8::Local<v8::FunctionTemplate>::New(m_pIsolate, lpClass->m_hTemplate);
+  v8::Local<v8::Object> hObject = hClass->InstanceTemplate()->NewInstance();
+  FXJSE_UpdateObjectBinding(hObject, lpObject);
+  m_hValue.Reset(m_pIsolate, hObject);
+}
+
+void CFXJSE_Value::SetArray(uint32_t uValueCount, CFXJSE_Value** rgValues) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Array> hArrayObject = v8::Array::New(m_pIsolate, uValueCount);
+  if (rgValues) {
+    for (uint32_t i = 0; i < uValueCount; i++) {
+      if (rgValues[i]) {
+        hArrayObject->Set(i, v8::Local<v8::Value>::New(
+                                 m_pIsolate, rgValues[i]->DirectGetValue()));
+      }
+    }
+  }
+  m_hValue.Reset(m_pIsolate, hArrayObject);
+}
+
+void CFXJSE_Value::SetDate(double dDouble) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hDate = v8::Date::New(m_pIsolate, dDouble);
+  m_hValue.Reset(m_pIsolate, hDate);
+}
+
+FX_BOOL CFXJSE_Value::SetObjectProperty(const CFX_ByteStringC& szPropName,
+                                        CFXJSE_Value* lpPropValue) {
+  ASSERT(lpPropValue);
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::Value> hPropValue =
+      v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue());
+  return (FX_BOOL)hObject.As<v8::Object>()->Set(
+      v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(),
+                              v8::String::kNormalString,
+                              szPropName.GetLength()),
+      hPropValue);
+}
+
+FX_BOOL CFXJSE_Value::GetObjectProperty(const CFX_ByteStringC& szPropName,
+                                        CFXJSE_Value* lpPropValue) {
+  ASSERT(lpPropValue);
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::Value> hPropValue =
+      hObject.As<v8::Object>()->Get(v8::String::NewFromUtf8(
+          m_pIsolate, szPropName.c_str(), v8::String::kNormalString,
+          szPropName.GetLength()));
+  lpPropValue->ForceSetValue(hPropValue);
+  return TRUE;
+}
+
+FX_BOOL CFXJSE_Value::SetObjectProperty(uint32_t uPropIdx,
+                                        CFXJSE_Value* lpPropValue) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::Value> hPropValue =
+      v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue());
+  return (FX_BOOL)hObject.As<v8::Object>()->Set(uPropIdx, hPropValue);
+}
+
+FX_BOOL CFXJSE_Value::GetObjectPropertyByIdx(uint32_t uPropIdx,
+                                             CFXJSE_Value* lpPropValue) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::Value> hPropValue = hObject.As<v8::Object>()->Get(uPropIdx);
+  lpPropValue->ForceSetValue(hPropValue);
+  return TRUE;
+}
+
+FX_BOOL CFXJSE_Value::DeleteObjectProperty(const CFX_ByteStringC& szPropName) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  hObject.As<v8::Object>()->Delete(v8::String::NewFromUtf8(
+      m_pIsolate, szPropName.c_str(), v8::String::kNormalString,
+      szPropName.GetLength()));
+  return TRUE;
+}
+
+FX_BOOL CFXJSE_Value::HasObjectOwnProperty(const CFX_ByteStringC& szPropName,
+                                           FX_BOOL bUseTypeGetter) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::String> hKey = v8::String::NewFromUtf8(
+      m_pIsolate, szPropName.c_str(), v8::String::kNormalString,
+      szPropName.GetLength());
+  return hObject.As<v8::Object>()->HasRealNamedProperty(hKey) ||
+         (bUseTypeGetter &&
+          hObject.As<v8::Object>()
+              ->HasOwnProperty(m_pIsolate->GetCurrentContext(), hKey)
+              .FromMaybe(false));
+}
+
+FX_BOOL CFXJSE_Value::SetObjectOwnProperty(const CFX_ByteStringC& szPropName,
+                                           CFXJSE_Value* lpPropValue) {
+  ASSERT(lpPropValue);
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hObject =
+      v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
+  if (!hObject->IsObject())
+    return FALSE;
+
+  v8::Local<v8::Value> pValue =
+      v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->m_hValue);
+  return hObject.As<v8::Object>()
+      ->DefineOwnProperty(
+          m_pIsolate->GetCurrentContext(),
+          v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(),
+                                  v8::String::kNormalString,
+                                  szPropName.GetLength()),
+          pValue)
+      .FromMaybe(false);
+}
+
+FX_BOOL CFXJSE_Value::SetFunctionBind(CFXJSE_Value* lpOldFunction,
+                                      CFXJSE_Value* lpNewThis) {
+  ASSERT(lpOldFunction && lpNewThis);
+
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> rgArgs[2];
+  v8::Local<v8::Value> hOldFunction =
+      v8::Local<v8::Value>::New(m_pIsolate, lpOldFunction->DirectGetValue());
+  if (hOldFunction.IsEmpty() || !hOldFunction->IsFunction())
+    return FALSE;
+
+  rgArgs[0] = hOldFunction;
+  v8::Local<v8::Value> hNewThis =
+      v8::Local<v8::Value>::New(m_pIsolate, lpNewThis->DirectGetValue());
+  if (hNewThis.IsEmpty())
+    return FALSE;
+
+  rgArgs[1] = hNewThis;
+  v8::Local<v8::String> hBinderFuncSource =
+      v8::String::NewFromUtf8(m_pIsolate,
+                              "(function (oldfunction, newthis) { return "
+                              "oldfunction.bind(newthis); })");
+  v8::Local<v8::Function> hBinderFunc =
+      v8::Script::Compile(hBinderFuncSource)->Run().As<v8::Function>();
+  v8::Local<v8::Value> hBoundFunction =
+      hBinderFunc->Call(m_pIsolate->GetCurrentContext()->Global(), 2, rgArgs);
+  if (hBoundFunction.IsEmpty() || !hBoundFunction->IsFunction())
+    return FALSE;
+
+  m_hValue.Reset(m_pIsolate, hBoundFunction);
+  return TRUE;
+}
+
+#define FXJSE_INVALID_PTR ((void*)(intptr_t)-1)
+FX_BOOL CFXJSE_Value::Call(CFXJSE_Value* lpReceiver,
+                           CFXJSE_Value* lpRetValue,
+                           uint32_t nArgCount,
+                           CFXJSE_Value** lpArgs) {
+  CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
+  v8::Local<v8::Value> hFunctionValue =
+      v8::Local<v8::Value>::New(m_pIsolate, DirectGetValue());
+  v8::Local<v8::Object> hFunctionObject =
+      !hFunctionValue.IsEmpty() && hFunctionValue->IsObject()
+          ? hFunctionValue.As<v8::Object>()
+          : v8::Local<v8::Object>();
+
+  v8::TryCatch trycatch(m_pIsolate);
+  if (hFunctionObject.IsEmpty() || !hFunctionObject->IsCallable()) {
+    if (lpRetValue)
+      lpRetValue->ForceSetValue(FXJSE_CreateReturnValue(m_pIsolate, trycatch));
+    return FALSE;
+  }
+
+  v8::Local<v8::Value> hReturnValue;
+  v8::Local<v8::Value>* lpLocalArgs = NULL;
+  if (nArgCount) {
+    lpLocalArgs = FX_Alloc(v8::Local<v8::Value>, nArgCount);
+    for (uint32_t i = 0; i < nArgCount; i++) {
+      new (lpLocalArgs + i) v8::Local<v8::Value>;
+      CFXJSE_Value* lpArg = lpArgs[i];
+      if (lpArg) {
+        lpLocalArgs[i] =
+            v8::Local<v8::Value>::New(m_pIsolate, lpArg->DirectGetValue());
+      }
+      if (lpLocalArgs[i].IsEmpty()) {
+        lpLocalArgs[i] = v8::Undefined(m_pIsolate);
+      }
+    }
+  }
+
+  FX_BOOL bRetValue = TRUE;
+  if (lpReceiver == FXJSE_INVALID_PTR) {
+    v8::MaybeLocal<v8::Value> maybe_retvalue =
+        hFunctionObject->CallAsConstructor(m_pIsolate->GetCurrentContext(),
+                                           nArgCount, lpLocalArgs);
+    hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>());
+  } else {
+    v8::Local<v8::Value> hReceiver;
+    if (lpReceiver) {
+      hReceiver =
+          v8::Local<v8::Value>::New(m_pIsolate, lpReceiver->DirectGetValue());
+    }
+    if (hReceiver.IsEmpty() || !hReceiver->IsObject())
+      hReceiver = v8::Object::New(m_pIsolate);
+
+    v8::MaybeLocal<v8::Value> maybe_retvalue = hFunctionObject->CallAsFunction(
+        m_pIsolate->GetCurrentContext(), hReceiver, nArgCount, lpLocalArgs);
+    hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>());
+  }
+
+  if (trycatch.HasCaught()) {
+    hReturnValue = FXJSE_CreateReturnValue(m_pIsolate, trycatch);
+    bRetValue = FALSE;
+  }
+
+  if (lpRetValue)
+    lpRetValue->ForceSetValue(hReturnValue);
+
+  if (lpLocalArgs) {
+    for (uint32_t i = 0; i < nArgCount; i++)
+      lpLocalArgs[i].~Local();
+    FX_Free(lpLocalArgs);
+  }
+  return bRetValue;
+}