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      1 // Copyright 2017 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include "xfa/fxfa/parser/cxfa_calculate.h"
      8 
      9 #include "fxjs/xfa/cjx_calculate.h"
     10 #include "third_party/base/ptr_util.h"
     11 #include "xfa/fxfa/parser/cxfa_message.h"
     12 #include "xfa/fxfa/parser/cxfa_script.h"
     13 #include "xfa/fxfa/parser/cxfa_text.h"
     14 
     15 namespace {
     16 
     17 const CXFA_Node::PropertyData kPropertyData[] = {{XFA_Element::Message, 1, 0},
     18                                                  {XFA_Element::Script, 1, 0},
     19                                                  {XFA_Element::Extras, 1, 0},
     20                                                  {XFA_Element::Unknown, 0, 0}};
     21 const CXFA_Node::AttributeData kAttributeData[] = {
     22     {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
     23     {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
     24     {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
     25     {XFA_Attribute::Override, XFA_AttributeType::Enum,
     26      (void*)XFA_AttributeEnum::Error},
     27     {XFA_Attribute::Unknown, XFA_AttributeType::Integer, nullptr}};
     28 
     29 constexpr wchar_t kName[] = L"calculate";
     30 
     31 }  // namespace
     32 
     33 CXFA_Calculate::CXFA_Calculate(CXFA_Document* doc, XFA_PacketType packet)
     34     : CXFA_Node(doc,
     35                 packet,
     36                 (XFA_XDPPACKET_Template | XFA_XDPPACKET_Form),
     37                 XFA_ObjectType::Node,
     38                 XFA_Element::Calculate,
     39                 kPropertyData,
     40                 kAttributeData,
     41                 kName,
     42                 pdfium::MakeUnique<CJX_Calculate>(this)) {}
     43 
     44 CXFA_Calculate::~CXFA_Calculate() {}
     45 
     46 XFA_AttributeEnum CXFA_Calculate::GetOverride() {
     47   return JSObject()
     48       ->TryEnum(XFA_Attribute::Override, false)
     49       .value_or(XFA_AttributeEnum::Error);
     50 }
     51 
     52 CXFA_Script* CXFA_Calculate::GetScriptIfExists() {
     53   return GetChild<CXFA_Script>(0, XFA_Element::Script, false);
     54 }
     55 
     56 WideString CXFA_Calculate::GetMessageText() {
     57   CXFA_Message* pNode = GetChild<CXFA_Message>(0, XFA_Element::Message, false);
     58   if (!pNode)
     59     return L"";
     60 
     61   CXFA_Text* text = pNode->GetChild<CXFA_Text>(0, XFA_Element::Text, false);
     62   return text ? text->GetContent() : L"";
     63 }
     64