fxjs/xfa/cjx_packet.cpp


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// 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/xfa/cjx_packet.h"

#include <vector>

#include "fxjs/cfxjse_value.h"
#include "fxjs/js_resources.h"
#include "xfa/fxfa/parser/cxfa_packet.h"

const CJX_MethodSpec CJX_Packet::MethodSpecs[] = {
    {"getAttribute", getAttribute_static},
    {"removeAttribute", removeAttribute_static},
    {"setAttribute", setAttribute_static}};

CJX_Packet::CJX_Packet(CXFA_Packet* packet) : CJX_Node(packet) {
  DefineMethods(MethodSpecs, FX_ArraySize(MethodSpecs));
}

CJX_Packet::~CJX_Packet() {}

CJS_Return CJX_Packet::getAttribute(
    CJS_V8* runtime,
    const std::vector<v8::Local<v8::Value>>& params) {
  if (params.size() != 1)
    return CJS_Return(JSGetStringFromID(JSMessage::kParamError));

  WideString attributeValue;
  CFX_XMLNode* pXMLNode = GetXFANode()->GetXMLMappingNode();
  if (pXMLNode && pXMLNode->GetType() == FX_XMLNODE_Element) {
    attributeValue = static_cast<CFX_XMLElement*>(pXMLNode)->GetString(
        runtime->ToWideString(params[0]).c_str());
  }
  return CJS_Return(
      runtime->NewString(attributeValue.UTF8Encode().AsStringView()));
}

CJS_Return CJX_Packet::setAttribute(
    CJS_V8* runtime,
    const std::vector<v8::Local<v8::Value>>& params) {
  if (params.size() != 2)
    return CJS_Return(JSGetStringFromID(JSMessage::kParamError));

  CFX_XMLNode* pXMLNode = GetXFANode()->GetXMLMappingNode();
  if (pXMLNode && pXMLNode->GetType() == FX_XMLNODE_Element) {
    static_cast<CFX_XMLElement*>(pXMLNode)->SetString(
        runtime->ToWideString(params[1]), runtime->ToWideString(params[0]));
  }
  return CJS_Return(runtime->NewNull());
}

CJS_Return CJX_Packet::removeAttribute(
    CJS_V8* runtime,
    const std::vector<v8::Local<v8::Value>>& params) {
  if (params.size() != 1)
    return CJS_Return(JSGetStringFromID(JSMessage::kParamError));

  CFX_XMLNode* pXMLNode = GetXFANode()->GetXMLMappingNode();
  if (pXMLNode && pXMLNode->GetType() == FX_XMLNODE_Element) {
    WideString name = runtime->ToWideString(params[0]);
    CFX_XMLElement* pXMLElement = static_cast<CFX_XMLElement*>(pXMLNode);
    if (pXMLElement->HasAttribute(name.c_str()))
      pXMLElement->RemoveAttribute(name.c_str());
  }
  return CJS_Return(runtime->NewNull());
}