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-rw-r--r--fxjs/cjs_v8.cpp199
1 files changed, 199 insertions, 0 deletions
diff --git a/fxjs/cjs_v8.cpp b/fxjs/cjs_v8.cpp
new file mode 100644
index 0000000000..67f0cb52b1
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+++ b/fxjs/cjs_v8.cpp
@@ -0,0 +1,199 @@
+// Copyright 2017 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/cjs_v8.h"
+
+CJS_V8::CJS_V8(v8::Isolate* isolate) : m_isolate(isolate) {}
+
+CJS_V8::~CJS_V8() {
+ m_V8PersistentContext.Reset();
+}
+
+v8::Local<v8::Value> CJS_V8::GetObjectProperty(
+ v8::Local<v8::Object> pObj,
+ const WideString& wsPropertyName) {
+ if (pObj.IsEmpty())
+ return v8::Local<v8::Value>();
+ v8::Local<v8::Value> val;
+ if (!pObj->Get(m_isolate->GetCurrentContext(),
+ NewString(wsPropertyName.AsStringView()))
+ .ToLocal(&val))
+ return v8::Local<v8::Value>();
+ return val;
+}
+
+std::vector<WideString> CJS_V8::GetObjectPropertyNames(
+ v8::Local<v8::Object> pObj) {
+ if (pObj.IsEmpty())
+ return std::vector<WideString>();
+
+ v8::Local<v8::Array> val;
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ if (!pObj->GetPropertyNames(context).ToLocal(&val))
+ return std::vector<WideString>();
+
+ std::vector<WideString> result;
+ for (uint32_t i = 0; i < val->Length(); ++i) {
+ result.push_back(ToWideString(val->Get(context, i).ToLocalChecked()));
+ }
+
+ return result;
+}
+
+void CJS_V8::PutObjectProperty(v8::Local<v8::Object> pObj,
+ const WideString& wsPropertyName,
+ v8::Local<v8::Value> pPut) {
+ if (pObj.IsEmpty())
+ return;
+ pObj->Set(m_isolate->GetCurrentContext(),
+ NewString(wsPropertyName.AsStringView()), pPut)
+ .FromJust();
+}
+
+v8::Local<v8::Array> CJS_V8::NewArray() {
+ return v8::Array::New(m_isolate);
+}
+
+unsigned CJS_V8::PutArrayElement(v8::Local<v8::Array> pArray,
+ unsigned index,
+ v8::Local<v8::Value> pValue) {
+ if (pArray.IsEmpty())
+ return 0;
+ if (pArray->Set(m_isolate->GetCurrentContext(), index, pValue).IsNothing())
+ return 0;
+ return 1;
+}
+
+v8::Local<v8::Value> CJS_V8::GetArrayElement(v8::Local<v8::Array> pArray,
+ unsigned index) {
+ if (pArray.IsEmpty())
+ return v8::Local<v8::Value>();
+ v8::Local<v8::Value> val;
+ if (!pArray->Get(m_isolate->GetCurrentContext(), index).ToLocal(&val))
+ return v8::Local<v8::Value>();
+ return val;
+}
+
+unsigned CJS_V8::GetArrayLength(v8::Local<v8::Array> pArray) {
+ if (pArray.IsEmpty())
+ return 0;
+ return pArray->Length();
+}
+
+v8::Local<v8::Context> CJS_V8::NewLocalContext() {
+ return v8::Local<v8::Context>::New(m_isolate, m_V8PersistentContext);
+}
+
+v8::Local<v8::Context> CJS_V8::GetPersistentContext() {
+ return m_V8PersistentContext.Get(m_isolate);
+}
+
+v8::Local<v8::Number> CJS_V8::NewNumber(int number) {
+ return v8::Int32::New(m_isolate, number);
+}
+
+v8::Local<v8::Number> CJS_V8::NewNumber(double number) {
+ return v8::Number::New(m_isolate, number);
+}
+
+v8::Local<v8::Number> CJS_V8::NewNumber(float number) {
+ return v8::Number::New(m_isolate, (float)number);
+}
+
+v8::Local<v8::Boolean> CJS_V8::NewBoolean(bool b) {
+ return v8::Boolean::New(m_isolate, b);
+}
+
+v8::Local<v8::String> CJS_V8::NewString(const ByteStringView& str) {
+ v8::Isolate* pIsolate = m_isolate ? m_isolate : v8::Isolate::GetCurrent();
+ return v8::String::NewFromUtf8(pIsolate, str.unterminated_c_str(),
+ v8::NewStringType::kNormal, str.GetLength())
+ .ToLocalChecked();
+}
+
+v8::Local<v8::String> CJS_V8::NewString(const WideStringView& str) {
+ // Conversion from pdfium's wchar_t wide-strings to v8's uint16_t
+ // wide-strings isn't handled by v8, so use UTF8 as a common
+ // intermediate format.
+ return NewString(FX_UTF8Encode(str).AsStringView());
+}
+
+v8::Local<v8::Value> CJS_V8::NewNull() {
+ return v8::Null(m_isolate);
+}
+
+v8::Local<v8::Value> CJS_V8::NewUndefined() {
+ return v8::Undefined(m_isolate);
+}
+
+v8::Local<v8::Date> CJS_V8::NewDate(double d) {
+ return v8::Date::New(m_isolate->GetCurrentContext(), d)
+ .ToLocalChecked()
+ .As<v8::Date>();
+}
+
+int CJS_V8::ToInt32(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty())
+ return 0;
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ v8::MaybeLocal<v8::Int32> maybe_int32 = pValue->ToInt32(context);
+ if (maybe_int32.IsEmpty())
+ return 0;
+ return maybe_int32.ToLocalChecked()->Value();
+}
+
+bool CJS_V8::ToBoolean(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty())
+ return false;
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ v8::MaybeLocal<v8::Boolean> maybe_boolean = pValue->ToBoolean(context);
+ if (maybe_boolean.IsEmpty())
+ return false;
+ return maybe_boolean.ToLocalChecked()->Value();
+}
+
+double CJS_V8::ToDouble(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty())
+ return 0.0;
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ v8::MaybeLocal<v8::Number> maybe_number = pValue->ToNumber(context);
+ if (maybe_number.IsEmpty())
+ return 0.0;
+ return maybe_number.ToLocalChecked()->Value();
+}
+
+WideString CJS_V8::ToWideString(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty())
+ return WideString();
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ v8::MaybeLocal<v8::String> maybe_string = pValue->ToString(context);
+ if (maybe_string.IsEmpty())
+ return WideString();
+ v8::String::Utf8Value s(maybe_string.ToLocalChecked());
+ return WideString::FromUTF8(ByteStringView(*s, s.length()));
+}
+
+v8::Local<v8::Object> CJS_V8::ToObject(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty() || !pValue->IsObject())
+ return v8::Local<v8::Object>();
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ return pValue->ToObject(context).ToLocalChecked();
+}
+
+v8::Local<v8::Array> CJS_V8::ToArray(v8::Local<v8::Value> pValue) {
+ if (pValue.IsEmpty() || !pValue->IsArray())
+ return v8::Local<v8::Array>();
+ v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
+ return v8::Local<v8::Array>::Cast(pValue->ToObject(context).ToLocalChecked());
+}
+
+void CJS_V8::SetConstArray(const WideString& name, v8::Local<v8::Array> array) {
+ m_ConstArrays[name] = v8::Global<v8::Array>(GetIsolate(), array);
+}
+
+v8::Local<v8::Array> CJS_V8::GetConstArray(const WideString& name) {
+ return v8::Local<v8::Array>::New(GetIsolate(), m_ConstArrays[name]);
+}