From 9d608ff14177cd665f6b2ead639415bda935fbe2 Mon Sep 17 00:00:00 2001 From: Dan Sinclair Date: Thu, 16 Nov 2017 14:17:17 +0000 Subject: Cleanup CJX_Node::GetAttribute This CL renames GetAttribute to TryAttribute and changes to return a pdfium::Optional instead of a boolean with an out parameter. GetAttribute is then added to call TryAttribute to mirror the other methods in the file. Change-Id: I875dac120776af7c53fe069e4dd36e5486838447 Reviewed-on: https://pdfium-review.googlesource.com/18514 Commit-Queue: dsinclair Reviewed-by: Tom Sepez --- xfa/fxfa/parser/cxfa_dataexporter.cpp | 41 +++++++++++++------------ xfa/fxfa/parser/cxfa_imagedata.cpp | 8 ++++- xfa/fxfa/parser/cxfa_measurement.cpp | 40 ++++++++++++------------ xfa/fxfa/parser/cxfa_measurement.h | 2 +- xfa/fxfa/parser/cxfa_node.cpp | 11 ++++--- xfa/fxfa/parser/cxfa_nodelocale.cpp | 8 ++--- xfa/fxfa/parser/xfa_document_datamerger_imp.cpp | 16 +++++----- 7 files changed, 69 insertions(+), 57 deletions(-) (limited to 'xfa/fxfa/parser') diff --git a/xfa/fxfa/parser/cxfa_dataexporter.cpp b/xfa/fxfa/parser/cxfa_dataexporter.cpp index 35ad4adccf..f7715dc374 100644 --- a/xfa/fxfa/parser/cxfa_dataexporter.cpp +++ b/xfa/fxfa/parser/cxfa_dataexporter.cpp @@ -90,16 +90,18 @@ void SaveAttribute(CXFA_Node* pNode, const WideStringView& wsName, bool bProto, WideString& wsOutput) { - WideString wsValue; - if ((!bProto && !pNode->JSNode()->HasAttribute(eName)) || - !pNode->JSNode()->GetAttribute(eName, wsValue, false)) { + if (!bProto && !pNode->JSNode()->HasAttribute(eName)) return; - } - wsValue = ExportEncodeAttribute(wsValue); + + pdfium::Optional value = + pNode->JSNode()->TryAttribute(eName, false); + if (!value) + return; + wsOutput += L" "; wsOutput += wsName; wsOutput += L"=\""; - wsOutput += wsValue; + wsOutput += ExportEncodeAttribute(*value); wsOutput += L"\""; } @@ -196,11 +198,10 @@ void RegenerateFormFile_Changed(CXFA_Node* pNode, if (!pRawValueNode) break; - WideString wsContentType; - pNode->JSNode()->GetAttribute(XFA_Attribute::ContentType, wsContentType, - false); + pdfium::Optional contentType = + pNode->JSNode()->TryAttribute(XFA_Attribute::ContentType, false); if (pRawValueNode->GetElementType() == XFA_Element::SharpxHTML && - wsContentType == L"text/html") { + (contentType && *contentType == L"text/html")) { CFX_XMLNode* pExDataXML = pNode->GetXMLMappingNode(); if (!pExDataXML) break; @@ -219,25 +220,25 @@ void RegenerateFormFile_Changed(CXFA_Node* pNode, wsChildren += WideString::FromUTF8( ByteStringView(pMemStream->GetBuffer(), pMemStream->GetSize())); } else if (pRawValueNode->GetElementType() == XFA_Element::Sharpxml && - wsContentType == L"text/xml") { - WideString wsRawValue; - pRawValueNode->JSNode()->GetAttribute(XFA_Attribute::Value, wsRawValue, - false); - if (wsRawValue.IsEmpty()) + (contentType && *contentType == L"text/xml")) { + pdfium::Optional rawValue = + pRawValueNode->JSNode()->TryAttribute(XFA_Attribute::Value, false); + if (!rawValue || rawValue->IsEmpty()) break; std::vector wsSelTextArray; size_t iStart = 0; - auto iEnd = wsRawValue.Find(L'\n', iStart); - iEnd = !iEnd.has_value() ? wsRawValue.GetLength() : iEnd; + auto iEnd = rawValue->Find(L'\n', iStart); + iEnd = !iEnd.has_value() ? rawValue->GetLength() : iEnd; while (iEnd.has_value() && iEnd >= iStart) { wsSelTextArray.push_back( - wsRawValue.Mid(iStart, iEnd.value() - iStart)); + rawValue->Mid(iStart, iEnd.value() - iStart)); iStart = iEnd.value() + 1; - if (iStart >= wsRawValue.GetLength()) + if (iStart >= rawValue->GetLength()) break; - iEnd = wsRawValue.Find(L'\n', iStart); + iEnd = rawValue->Find(L'\n', iStart); } + CXFA_Node* pParentNode = pNode->GetNodeItem(XFA_NODEITEM_Parent); ASSERT(pParentNode); CXFA_Node* pGrandparentNode = diff --git a/xfa/fxfa/parser/cxfa_imagedata.cpp b/xfa/fxfa/parser/cxfa_imagedata.cpp index 2ad891d7ec..7888c34205 100644 --- a/xfa/fxfa/parser/cxfa_imagedata.cpp +++ b/xfa/fxfa/parser/cxfa_imagedata.cpp @@ -35,7 +35,13 @@ bool CXFA_ImageData::GetHref(WideString& wsHref) { wsHref = *ret; return true; } - return m_pNode->JSNode()->GetAttribute(XFA_Attribute::Href, wsHref, true); + pdfium::Optional ret = + m_pNode->JSNode()->TryAttribute(XFA_Attribute::Href, true); + if (!ret) + return false; + + wsHref = *ret; + return true; } XFA_ATTRIBUTEENUM CXFA_ImageData::GetTransferEncoding() { diff --git a/xfa/fxfa/parser/cxfa_measurement.cpp b/xfa/fxfa/parser/cxfa_measurement.cpp index 053f9d1c47..91e39af969 100644 --- a/xfa/fxfa/parser/cxfa_measurement.cpp +++ b/xfa/fxfa/parser/cxfa_measurement.cpp @@ -45,36 +45,38 @@ void CXFA_Measurement::SetString(const WideStringView& wsMeasure) { Set(fValue, eUnit); } -bool CXFA_Measurement::ToString(WideString* wsMeasure) const { +WideString CXFA_Measurement::ToString() const { + WideString wsMeasure; switch (GetUnit()) { case XFA_Unit::Mm: - wsMeasure->Format(L"%.8gmm", GetValue()); - return true; + wsMeasure.Format(L"%.8gmm", GetValue()); + break; case XFA_Unit::Pt: - wsMeasure->Format(L"%.8gpt", GetValue()); - return true; + wsMeasure.Format(L"%.8gpt", GetValue()); + break; case XFA_Unit::In: - wsMeasure->Format(L"%.8gin", GetValue()); - return true; + wsMeasure.Format(L"%.8gin", GetValue()); + break; case XFA_Unit::Cm: - wsMeasure->Format(L"%.8gcm", GetValue()); - return true; + wsMeasure.Format(L"%.8gcm", GetValue()); + break; case XFA_Unit::Mp: - wsMeasure->Format(L"%.8gmp", GetValue()); - return true; + wsMeasure.Format(L"%.8gmp", GetValue()); + break; case XFA_Unit::Pc: - wsMeasure->Format(L"%.8gpc", GetValue()); - return true; + wsMeasure.Format(L"%.8gpc", GetValue()); + break; case XFA_Unit::Em: - wsMeasure->Format(L"%.8gem", GetValue()); - return true; + wsMeasure.Format(L"%.8gem", GetValue()); + break; case XFA_Unit::Percent: - wsMeasure->Format(L"%.8g%%", GetValue()); - return true; + wsMeasure.Format(L"%.8g%%", GetValue()); + break; default: - wsMeasure->Format(L"%.8g", GetValue()); - return false; + wsMeasure.Format(L"%.8g", GetValue()); + break; } + return wsMeasure; } float CXFA_Measurement::ToUnit(XFA_Unit eUnit) const { diff --git a/xfa/fxfa/parser/cxfa_measurement.h b/xfa/fxfa/parser/cxfa_measurement.h index 2f6af3d43c..d83af246b8 100644 --- a/xfa/fxfa/parser/cxfa_measurement.h +++ b/xfa/fxfa/parser/cxfa_measurement.h @@ -27,7 +27,7 @@ class CXFA_Measurement { XFA_Unit GetUnit() const { return m_eUnit; } float GetValue() const { return m_fValue; } - bool ToString(WideString* wsMeasure) const; + WideString ToString() const; float ToUnit(XFA_Unit eUnit) const; private: diff --git a/xfa/fxfa/parser/cxfa_node.cpp b/xfa/fxfa/parser/cxfa_node.cpp index 90579ff5e2..465529e777 100644 --- a/xfa/fxfa/parser/cxfa_node.cpp +++ b/xfa/fxfa/parser/cxfa_node.cpp @@ -198,8 +198,9 @@ CXFA_Node* CXFA_Node::Clone(bool bRecursive) { if (IsNeedSavingXMLNode()) { std::unique_ptr pCloneXML; if (IsAttributeInXML()) { - WideString wsName; - JSNode()->GetAttribute(XFA_Attribute::Name, wsName, false); + WideString wsName = JSNode() + ->TryAttribute(XFA_Attribute::Name, false) + .value_or(WideString()); auto pCloneXMLElement = pdfium::MakeUnique(wsName); WideString wsValue = JSNode()->GetCData(XFA_Attribute::Value); if (!wsValue.IsEmpty()) @@ -867,8 +868,10 @@ bool CXFA_Node::RemoveChild(CXFA_Node* pNode, bool bNotify) { pNode->JSNode()->GetCData(XFA_Attribute::QualifiedName); pXMLElement->RemoveAttribute(wsAttributeName.c_str()); } - WideString wsName; - pNode->JSNode()->GetAttribute(XFA_Attribute::Name, wsName, false); + + WideString wsName = pNode->JSNode() + ->TryAttribute(XFA_Attribute::Name, false) + .value_or(WideString()); CFX_XMLElement* pNewXMLElement = new CFX_XMLElement(wsName); WideString wsValue = JSNode()->GetCData(XFA_Attribute::Value); if (!wsValue.IsEmpty()) diff --git a/xfa/fxfa/parser/cxfa_nodelocale.cpp b/xfa/fxfa/parser/cxfa_nodelocale.cpp index 25086922a7..da64c4a04c 100644 --- a/xfa/fxfa/parser/cxfa_nodelocale.cpp +++ b/xfa/fxfa/parser/cxfa_nodelocale.cpp @@ -135,11 +135,9 @@ CXFA_Node* CXFA_NodeLocale::GetNodeByName(CXFA_Node* pParent, CXFA_Node* pChild = pParent ? pParent->GetNodeItem(XFA_NODEITEM_FirstChild) : nullptr; while (pChild) { - WideString wsChild; - if (pChild->JSNode()->GetAttribute(XFA_Attribute::Name, wsChild, true)) { - if (wsChild == wsName) - return pChild; - } + if (pChild->JSNode()->GetAttribute(XFA_Attribute::Name) == wsName) + return pChild; + pChild = pChild->GetNodeItem(XFA_NODEITEM_NextSibling); } return nullptr; diff --git a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp index 29bcd5f3b9..4cf7601531 100644 --- a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp +++ b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp @@ -88,13 +88,15 @@ bool FormValueNode_SetChildContent(CXFA_Node* pValueNode, if (!pContentRawDataNode) { XFA_Element element = XFA_Element::Sharptext; if (pChildNode->GetElementType() == XFA_Element::ExData) { - WideString wsContentType; - pChildNode->JSNode()->GetAttribute(XFA_Attribute::ContentType, - wsContentType, false); - if (wsContentType == L"text/html") - element = XFA_Element::SharpxHTML; - else if (wsContentType == L"text/xml") - element = XFA_Element::Sharpxml; + pdfium::Optional contentType = + pChildNode->JSNode()->TryAttribute(XFA_Attribute::ContentType, + false); + if (contentType) { + if (*contentType == L"text/html") + element = XFA_Element::SharpxHTML; + else if (*contentType == L"text/xml") + element = XFA_Element::Sharpxml; + } } pContentRawDataNode = pChildNode->CreateSamePacketNode(element); pChildNode->InsertChild(pContentRawDataNode, nullptr); -- cgit v1.2.3