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 "fxjs/xfa/cjx_subform.h"
8 
9 #include <vector>
10 
11 #include "fxjs/cfx_v8.h"
12 #include "fxjs/js_resources.h"
13 #include "fxjs/xfa/cfxjse_engine.h"
14 #include "fxjs/xfa/cfxjse_value.h"
15 #include "xfa/fxfa/cxfa_eventparam.h"
16 #include "xfa/fxfa/cxfa_ffnotify.h"
17 #include "xfa/fxfa/fxfa.h"
18 #include "xfa/fxfa/parser/cxfa_delta.h"
19 #include "xfa/fxfa/parser/cxfa_document.h"
20 
21 const CJX_MethodSpec CJX_Subform::MethodSpecs[] = {
22     {"execCalculate", execCalculate_static},
23     {"execEvent", execEvent_static},
24     {"execInitialize", execInitialize_static},
25     {"execValidate", execValidate_static}};
26 
CJX_Subform(CXFA_Node * node)27 CJX_Subform::CJX_Subform(CXFA_Node* node) : CJX_Container(node) {
28   DefineMethods(MethodSpecs);
29 }
30 
31 CJX_Subform::~CJX_Subform() = default;
32 
DynamicTypeIs(TypeTag eType) const33 bool CJX_Subform::DynamicTypeIs(TypeTag eType) const {
34   return eType == static_type__ || ParentType__::DynamicTypeIs(eType);
35 }
36 
execEvent(CFX_V8 * runtime,const std::vector<v8::Local<v8::Value>> & params)37 CJS_Result CJX_Subform::execEvent(
38     CFX_V8* runtime,
39     const std::vector<v8::Local<v8::Value>>& params) {
40   if (params.size() != 1)
41     return CJS_Result::Failure(JSMessage::kParamError);
42 
43   execSingleEventByName(runtime->ToWideString(params[0]).AsStringView(),
44                         XFA_Element::Subform);
45   return CJS_Result::Success();
46 }
47 
execInitialize(CFX_V8 * runtime,const std::vector<v8::Local<v8::Value>> & params)48 CJS_Result CJX_Subform::execInitialize(
49     CFX_V8* runtime,
50     const std::vector<v8::Local<v8::Value>>& params) {
51   if (!params.empty())
52     return CJS_Result::Failure(JSMessage::kParamError);
53 
54   CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
55   if (pNotify)
56     pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Initialize, false,
57                                   true);
58   return CJS_Result::Success();
59 }
60 
execCalculate(CFX_V8 * runtime,const std::vector<v8::Local<v8::Value>> & params)61 CJS_Result CJX_Subform::execCalculate(
62     CFX_V8* runtime,
63     const std::vector<v8::Local<v8::Value>>& params) {
64   if (!params.empty())
65     return CJS_Result::Failure(JSMessage::kParamError);
66 
67   CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
68   if (pNotify)
69     pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Calculate, false,
70                                   true);
71   return CJS_Result::Success();
72 }
73 
execValidate(CFX_V8 * runtime,const std::vector<v8::Local<v8::Value>> & params)74 CJS_Result CJX_Subform::execValidate(
75     CFX_V8* runtime,
76     const std::vector<v8::Local<v8::Value>>& params) {
77   if (!params.empty())
78     return CJS_Result::Failure(JSMessage::kParamError);
79 
80   CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
81   if (!pNotify)
82     return CJS_Result::Success(runtime->NewBoolean(false));
83 
84   XFA_EventError iRet = pNotify->ExecEventByDeepFirst(
85       GetXFANode(), XFA_EVENT_Validate, false, true);
86   return CJS_Result::Success(
87       runtime->NewBoolean(iRet != XFA_EventError::kError));
88 }
89 
locale(v8::Isolate * pIsolate,CFXJSE_Value * pValue,bool bSetting,XFA_Attribute eAttribute)90 void CJX_Subform::locale(v8::Isolate* pIsolate,
91                          CFXJSE_Value* pValue,
92                          bool bSetting,
93                          XFA_Attribute eAttribute) {
94   if (bSetting) {
95     SetCDataImpl(XFA_Attribute::Locale, pValue->ToWideString(pIsolate), true,
96                  true);
97     return;
98   }
99 
100   WideString wsLocaleName = GetXFANode()->GetLocaleName().value_or(L"");
101   pValue->SetString(pIsolate, wsLocaleName.ToUTF8().AsStringView());
102 }
103 
instanceManager(v8::Isolate * pIsolate,CFXJSE_Value * pValue,bool bSetting,XFA_Attribute eAttribute)104 void CJX_Subform::instanceManager(v8::Isolate* pIsolate,
105                                   CFXJSE_Value* pValue,
106                                   bool bSetting,
107                                   XFA_Attribute eAttribute) {
108   if (bSetting) {
109     ThrowInvalidPropertyException();
110     return;
111   }
112 
113   WideString wsName = GetCData(XFA_Attribute::Name);
114   CXFA_Node* pInstanceMgr = nullptr;
115   for (CXFA_Node* pNode = GetXFANode()->GetPrevSibling(); pNode;
116        pNode = pNode->GetPrevSibling()) {
117     if (pNode->GetElementType() == XFA_Element::InstanceManager) {
118       WideString wsInstMgrName =
119           pNode->JSObject()->GetCData(XFA_Attribute::Name);
120       if (wsInstMgrName.GetLength() >= 1 && wsInstMgrName[0] == '_' &&
121           wsInstMgrName.Last(wsInstMgrName.GetLength() - 1) == wsName) {
122         pInstanceMgr = pNode;
123       }
124       break;
125     }
126   }
127   if (!pInstanceMgr) {
128     pValue->SetNull(pIsolate);
129     return;
130   }
131 
132   pValue->ForceSetValue(
133       pIsolate, GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(
134                     pInstanceMgr));
135 }
136