1 // Copyright 2017 The PDFium Authors
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_form.h"
8
9 #include <vector>
10
11 #include "fxjs/fxv8.h"
12 #include "fxjs/js_resources.h"
13 #include "fxjs/xfa/cfxjse_engine.h"
14 #include "v8/include/cppgc/allocation.h"
15 #include "v8/include/v8-object.h"
16 #include "v8/include/v8-primitive.h"
17 #include "xfa/fxfa/cxfa_eventparam.h"
18 #include "xfa/fxfa/cxfa_ffnotify.h"
19 #include "xfa/fxfa/parser/cxfa_arraynodelist.h"
20 #include "xfa/fxfa/parser/cxfa_document.h"
21 #include "xfa/fxfa/parser/cxfa_form.h"
22
23 const CJX_MethodSpec CJX_Form::MethodSpecs[] = {
24 {"execCalculate", execCalculate_static},
25 {"execInitialize", execInitialize_static},
26 {"execValidate", execValidate_static},
27 {"formNodes", formNodes_static},
28 {"recalculate", recalculate_static},
29 {"remerge", remerge_static}};
30
CJX_Form(CXFA_Form * form)31 CJX_Form::CJX_Form(CXFA_Form* form) : CJX_Model(form) {
32 DefineMethods(MethodSpecs);
33 }
34
35 CJX_Form::~CJX_Form() = default;
36
DynamicTypeIs(TypeTag eType) const37 bool CJX_Form::DynamicTypeIs(TypeTag eType) const {
38 return eType == static_type__ || ParentType__::DynamicTypeIs(eType);
39 }
40
formNodes(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)41 CJS_Result CJX_Form::formNodes(
42 CFXJSE_Engine* runtime,
43 const std::vector<v8::Local<v8::Value>>& params) {
44 if (params.size() != 1)
45 return CJS_Result::Failure(JSMessage::kParamError);
46
47 CXFA_Node* pDataNode = ToNode(runtime->ToXFAObject(params[0]));
48 if (!pDataNode)
49 return CJS_Result::Failure(JSMessage::kValueError);
50
51 CXFA_Document* pDoc = GetDocument();
52 auto* pFormNodes = cppgc::MakeGarbageCollected<CXFA_ArrayNodeList>(
53 pDoc->GetHeap()->GetAllocationHandle(), pDoc);
54 pDoc->GetNodeOwner()->PersistList(pFormNodes);
55
56 v8::Local<v8::Value> value = runtime->GetOrCreateJSBindingFromMap(pFormNodes);
57 return CJS_Result::Success(value);
58 }
59
remerge(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)60 CJS_Result CJX_Form::remerge(CFXJSE_Engine* runtime,
61 const std::vector<v8::Local<v8::Value>>& params) {
62 if (!params.empty())
63 return CJS_Result::Failure(JSMessage::kParamError);
64
65 GetDocument()->DoDataRemerge();
66 return CJS_Result::Success();
67 }
68
execInitialize(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)69 CJS_Result CJX_Form::execInitialize(
70 CFXJSE_Engine* runtime,
71 const std::vector<v8::Local<v8::Value>>& params) {
72 if (!params.empty())
73 return CJS_Result::Failure(JSMessage::kParamError);
74
75 CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
76 if (pNotify)
77 pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Initialize, false,
78 true);
79 return CJS_Result::Success();
80 }
81
recalculate(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)82 CJS_Result CJX_Form::recalculate(
83 CFXJSE_Engine* runtime,
84 const std::vector<v8::Local<v8::Value>>& params) {
85 CXFA_EventParam* pEventParam =
86 GetDocument()->GetScriptContext()->GetEventParam();
87 if (pEventParam && (pEventParam->m_eType == XFA_EVENT_Calculate ||
88 pEventParam->m_eType == XFA_EVENT_InitCalculate)) {
89 return CJS_Result::Success();
90 }
91 if (params.size() != 1)
92 return CJS_Result::Failure(JSMessage::kParamError);
93
94 CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
95 if (!pNotify || runtime->ToInt32(params[0]) != 0)
96 return CJS_Result::Success();
97
98 pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Calculate, false, true);
99 pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Validate, false, true);
100 pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Ready, true, true);
101 return CJS_Result::Success();
102 }
103
execCalculate(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)104 CJS_Result CJX_Form::execCalculate(
105 CFXJSE_Engine* runtime,
106 const std::vector<v8::Local<v8::Value>>& params) {
107 if (!params.empty())
108 return CJS_Result::Failure(JSMessage::kParamError);
109
110 CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
111 if (pNotify)
112 pNotify->ExecEventByDeepFirst(GetXFANode(), XFA_EVENT_Calculate, false,
113 true);
114 return CJS_Result::Success();
115 }
116
execValidate(CFXJSE_Engine * runtime,const std::vector<v8::Local<v8::Value>> & params)117 CJS_Result CJX_Form::execValidate(
118 CFXJSE_Engine* runtime,
119 const std::vector<v8::Local<v8::Value>>& params) {
120 if (params.size() != 0)
121 return CJS_Result::Failure(JSMessage::kParamError);
122
123 CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
124 if (!pNotify)
125 return CJS_Result::Success(runtime->NewBoolean(false));
126
127 XFA_EventError iRet = pNotify->ExecEventByDeepFirst(
128 GetXFANode(), XFA_EVENT_Validate, false, true);
129 return CJS_Result::Success(
130 runtime->NewBoolean(iRet != XFA_EventError::kError));
131 }
132
checksumS(v8::Isolate * pIsolate,v8::Local<v8::Value> * pValue,bool bSetting,XFA_Attribute eAttribute)133 void CJX_Form::checksumS(v8::Isolate* pIsolate,
134 v8::Local<v8::Value>* pValue,
135 bool bSetting,
136 XFA_Attribute eAttribute) {
137 if (bSetting) {
138 SetAttributeByEnum(XFA_Attribute::Checksum,
139 fxv8::ReentrantToWideStringHelper(pIsolate, *pValue),
140 false);
141 return;
142 }
143
144 absl::optional<WideString> checksum =
145 TryAttribute(XFA_Attribute::Checksum, false);
146 *pValue = fxv8::NewStringHelper(
147 pIsolate,
148 checksum.has_value() ? checksum.value().ToUTF8().AsStringView() : "");
149 }
150