diff options
Diffstat (limited to 'fxjs/cjs_v8.cpp')
| -rw-r--r-- | fxjs/cjs_v8.cpp | 199 |
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 --- /dev/null +++ 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]); +} |