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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_instancemanager.h"
#include <algorithm>
#include <vector>
#include "fxjs/fxv8.h"
#include "fxjs/js_resources.h"
#include "fxjs/xfa/cfxjse_engine.h"
#include "third_party/base/notreached.h"
#include "xfa/fxfa/cxfa_ffdoc.h"
#include "xfa/fxfa/cxfa_ffnotify.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_instancemanager.h"
#include "xfa/fxfa/parser/cxfa_occur.h"
const CJX_MethodSpec CJX_InstanceManager::MethodSpecs[] = {
{"addInstance", addInstance_static},
{"insertInstance", insertInstance_static},
{"moveInstance", moveInstance_static},
{"removeInstance", removeInstance_static},
{"setInstances", setInstances_static}};
CJX_InstanceManager::CJX_InstanceManager(CXFA_InstanceManager* mgr)
: CJX_Node(mgr) {
DefineMethods(MethodSpecs);
}
CJX_InstanceManager::~CJX_InstanceManager() = default;
bool CJX_InstanceManager::DynamicTypeIs(TypeTag eType) const {
return eType == static_type__ || ParentType__::DynamicTypeIs(eType);
}
int32_t CJX_InstanceManager::SetInstances(int32_t iDesired) {
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
int32_t iMin = occur ? occur->GetMin() : CXFA_Occur::kDefaultMin;
if (iDesired < iMin) {
ThrowTooManyOccurancesException(L"min");
return 1;
}
int32_t iMax = occur ? occur->GetMax() : CXFA_Occur::kDefaultMax;
if (iMax >= 0 && iDesired > iMax) {
ThrowTooManyOccurancesException(L"max");
return 2;
}
int32_t iCount = GetXFANode()->GetCount();
if (iDesired == iCount)
return 0;
if (iDesired < iCount) {
WideString wsInstManagerName = GetCData(XFA_Attribute::Name);
WideString wsInstanceName = WideString(
wsInstManagerName.IsEmpty()
? wsInstManagerName
: wsInstManagerName.Last(wsInstManagerName.GetLength() - 1));
uint32_t dInstanceNameHash =
FX_HashCode_GetW(wsInstanceName.AsStringView(), false);
CXFA_Node* pPrevSibling = iDesired == 0
? GetXFANode()
: GetXFANode()->GetItemIfExists(iDesired - 1);
if (!pPrevSibling) {
// TODO(dsinclair): Better error?
ThrowIndexOutOfBoundsException();
return 0;
}
while (iCount > iDesired) {
CXFA_Node* pRemoveInstance = pPrevSibling->GetNextSibling();
if (pRemoveInstance->GetElementType() != XFA_Element::Subform &&
pRemoveInstance->GetElementType() != XFA_Element::SubformSet) {
continue;
}
if (pRemoveInstance->GetElementType() == XFA_Element::InstanceManager) {
NOTREACHED();
break;
}
if (pRemoveInstance->GetNameHash() == dInstanceNameHash) {
GetXFANode()->RemoveItem(pRemoveInstance, true);
iCount--;
}
}
} else {
while (iCount < iDesired) {
CXFA_Node* pNewInstance = GetXFANode()->CreateInstanceIfPossible(true);
if (!pNewInstance)
return 0;
GetXFANode()->InsertItem(pNewInstance, iCount, iCount, false);
++iCount;
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return 0;
pNotify->RunNodeInitialize(pNewInstance);
}
}
GetDocument()->GetLayoutProcessor()->AddChangedContainer(
ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Form)));
return 0;
}
int32_t CJX_InstanceManager::MoveInstance(int32_t iTo, int32_t iFrom) {
int32_t iCount = GetXFANode()->GetCount();
if (iFrom > iCount || iTo > iCount - 1) {
ThrowIndexOutOfBoundsException();
return 1;
}
if (iFrom < 0 || iTo < 0 || iFrom == iTo)
return 0;
CXFA_Node* pMoveInstance = GetXFANode()->GetItemIfExists(iFrom);
if (!pMoveInstance) {
ThrowIndexOutOfBoundsException();
return 1;
}
GetXFANode()->RemoveItem(pMoveInstance, false);
GetXFANode()->InsertItem(pMoveInstance, iTo, iCount - 1, true);
GetDocument()->GetLayoutProcessor()->AddChangedContainer(
ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Form)));
return 0;
}
CJS_Result CJX_InstanceManager::moveInstance(
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_Document* doc = static_cast<CFXJSE_Engine*>(runtime)->GetDocument();
if (doc->GetFormType() != FormType::kXFAFull)
return CJS_Result::Failure(JSMessage::kNotSupportedError);
if (params.size() != 2)
return CJS_Result::Failure(JSMessage::kParamError);
int32_t iFrom = runtime->ToInt32(params[0]);
int32_t iTo = runtime->ToInt32(params[1]);
MoveInstance(iTo, iFrom);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_Node* pToInstance = GetXFANode()->GetItemIfExists(iTo);
if (pToInstance && pToInstance->GetElementType() == XFA_Element::Subform)
pNotify->RunSubformIndexChange(pToInstance);
CXFA_Node* pFromInstance = GetXFANode()->GetItemIfExists(iFrom);
if (pFromInstance &&
pFromInstance->GetElementType() == XFA_Element::Subform) {
pNotify->RunSubformIndexChange(pFromInstance);
}
return CJS_Result::Success();
}
CJS_Result CJX_InstanceManager::removeInstance(
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_Document* doc = static_cast<CFXJSE_Engine*>(runtime)->GetDocument();
if (doc->GetFormType() != FormType::kXFAFull)
return CJS_Result::Failure(JSMessage::kNotSupportedError);
if (params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
int32_t iIndex = runtime->ToInt32(params[0]);
int32_t iCount = GetXFANode()->GetCount();
if (iIndex < 0 || iIndex >= iCount)
return CJS_Result::Failure(JSMessage::kInvalidInputError);
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
int32_t iMin = occur ? occur->GetMin() : CXFA_Occur::kDefaultMin;
if (iCount - 1 < iMin)
return CJS_Result::Failure(JSMessage::kTooManyOccurances);
CXFA_Node* pRemoveInstance = GetXFANode()->GetItemIfExists(iIndex);
if (!pRemoveInstance)
return CJS_Result::Failure(JSMessage::kParamError);
GetXFANode()->RemoveItem(pRemoveInstance, true);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (pNotify) {
for (int32_t i = iIndex; i < iCount - 1; i++) {
CXFA_Node* pSubformInstance = GetXFANode()->GetItemIfExists(i);
if (pSubformInstance &&
pSubformInstance->GetElementType() == XFA_Element::Subform) {
pNotify->RunSubformIndexChange(pSubformInstance);
}
}
}
GetDocument()->GetLayoutProcessor()->AddChangedContainer(
ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Form)));
return CJS_Result::Success();
}
CJS_Result CJX_InstanceManager::setInstances(
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_Document* doc = static_cast<CFXJSE_Engine*>(runtime)->GetDocument();
if (doc->GetFormType() != FormType::kXFAFull)
return CJS_Result::Failure(JSMessage::kNotSupportedError);
if (params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
SetInstances(runtime->ToInt32(params[0]));
return CJS_Result::Success();
}
CJS_Result CJX_InstanceManager::addInstance(
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_Document* doc = static_cast<CFXJSE_Engine*>(runtime)->GetDocument();
if (doc->GetFormType() != FormType::kXFAFull)
return CJS_Result::Failure(JSMessage::kNotSupportedError);
if (!params.empty() && params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
bool fFlags = true;
if (params.size() == 1)
fFlags = runtime->ToBoolean(params[0]);
int32_t iCount = GetXFANode()->GetCount();
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
int32_t iMax = occur ? occur->GetMax() : CXFA_Occur::kDefaultMax;
if (iMax >= 0 && iCount >= iMax)
return CJS_Result::Failure(JSMessage::kTooManyOccurances);
CXFA_Node* pNewInstance = GetXFANode()->CreateInstanceIfPossible(fFlags);
if (!pNewInstance)
return CJS_Result::Success(runtime->NewNull());
GetXFANode()->InsertItem(pNewInstance, iCount, iCount, false);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (pNotify) {
pNotify->RunNodeInitialize(pNewInstance);
GetDocument()->GetLayoutProcessor()->AddChangedContainer(
ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Form)));
}
return CJS_Result::Success(
GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(
pNewInstance));
}
CJS_Result CJX_InstanceManager::insertInstance(
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_Document* doc = static_cast<CFXJSE_Engine*>(runtime)->GetDocument();
if (doc->GetFormType() != FormType::kXFAFull)
return CJS_Result::Failure(JSMessage::kNotSupportedError);
if (params.size() != 1 && params.size() != 2)
return CJS_Result::Failure(JSMessage::kParamError);
int32_t iIndex = runtime->ToInt32(params[0]);
bool bBind = false;
if (params.size() == 2)
bBind = runtime->ToBoolean(params[1]);
int32_t iCount = GetXFANode()->GetCount();
if (iIndex < 0 || iIndex > iCount)
return CJS_Result::Failure(JSMessage::kInvalidInputError);
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
int32_t iMax = occur ? occur->GetMax() : CXFA_Occur::kDefaultMax;
if (iMax >= 0 && iCount >= iMax)
return CJS_Result::Failure(JSMessage::kInvalidInputError);
CXFA_Node* pNewInstance = GetXFANode()->CreateInstanceIfPossible(bBind);
if (!pNewInstance)
return CJS_Result::Success(runtime->NewNull());
GetXFANode()->InsertItem(pNewInstance, iIndex, iCount, true);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (pNotify) {
pNotify->RunNodeInitialize(pNewInstance);
GetDocument()->GetLayoutProcessor()->AddChangedContainer(
ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Form)));
}
return CJS_Result::Success(
GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(
pNewInstance));
}
void CJX_InstanceManager::max(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
*pValue = fxv8::NewNumberHelper(
pIsolate, occur ? occur->GetMax() : CXFA_Occur::kDefaultMax);
}
void CJX_InstanceManager::min(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
CXFA_Occur* occur = GetXFANode()->GetOccurIfExists();
*pValue = fxv8::NewNumberHelper(
pIsolate, occur ? occur->GetMin() : CXFA_Occur::kDefaultMin);
}
void CJX_InstanceManager::count(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
SetInstances(fxv8::ReentrantToInt32Helper(pIsolate, *pValue));
return;
}
*pValue = fxv8::NewNumberHelper(pIsolate, GetXFANode()->GetCount());
}