| // 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()); |
| 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()); |
| } |