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authorDan Sinclair <dsinclair@chromium.org>2017-11-16 14:17:17 +0000
committerChromium commit bot <commit-bot@chromium.org>2017-11-16 14:17:17 +0000
commit9d608ff14177cd665f6b2ead639415bda935fbe2 (patch)
treed538fbf435ed55cf07ff37c24bc835507c12466d /xfa
parent9d47de6b27b167db46b6aba38352fc42a8b6adae (diff)
downloadpdfium-9d608ff14177cd665f6b2ead639415bda935fbe2.tar.xz
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 <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'xfa')
-rw-r--r--xfa/fxfa/cxfa_ffpageview.cpp9
-rw-r--r--xfa/fxfa/cxfa_textprovider.cpp14
-rw-r--r--xfa/fxfa/parser/cxfa_dataexporter.cpp41
-rw-r--r--xfa/fxfa/parser/cxfa_imagedata.cpp8
-rw-r--r--xfa/fxfa/parser/cxfa_measurement.cpp40
-rw-r--r--xfa/fxfa/parser/cxfa_measurement.h2
-rw-r--r--xfa/fxfa/parser/cxfa_node.cpp11
-rw-r--r--xfa/fxfa/parser/cxfa_nodelocale.cpp8
-rw-r--r--xfa/fxfa/parser/xfa_document_datamerger_imp.cpp16
9 files changed, 79 insertions, 70 deletions
diff --git a/xfa/fxfa/cxfa_ffpageview.cpp b/xfa/fxfa/cxfa_ffpageview.cpp
index 3c88a121da..26bdc26acd 100644
--- a/xfa/fxfa/cxfa_ffpageview.cpp
+++ b/xfa/fxfa/cxfa_ffpageview.cpp
@@ -314,11 +314,10 @@ CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::GetTraverseWidget(
CXFA_Node* pTraverse =
pTraversal->GetChild(0, XFA_Element::Traverse, false);
if (pTraverse) {
- WideString wsTraverseWidgetName;
- if (pTraverse->JSNode()->GetAttribute(XFA_Attribute::Ref,
- wsTraverseWidgetName, true)) {
- return FindWidgetByName(wsTraverseWidgetName, pWidget);
- }
+ pdfium::Optional<WideString> traverseWidgetName =
+ pTraverse->JSNode()->TryAttribute(XFA_Attribute::Ref, true);
+ if (traverseWidgetName)
+ return FindWidgetByName(*traverseWidgetName, pWidget);
}
}
return nullptr;
diff --git a/xfa/fxfa/cxfa_textprovider.cpp b/xfa/fxfa/cxfa_textprovider.cpp
index e23fdec01a..544a5c26b9 100644
--- a/xfa/fxfa/cxfa_textprovider.cpp
+++ b/xfa/fxfa/cxfa_textprovider.cpp
@@ -45,10 +45,9 @@ CXFA_Node* CXFA_TextProvider::GetTextNode(bool& bRichText) {
CXFA_Node* pChildNode = pValueNode->GetNodeItem(XFA_NODEITEM_FirstChild);
if (pChildNode && pChildNode->GetElementType() == XFA_Element::ExData) {
- WideString wsContentType;
- pChildNode->JSNode()->GetAttribute(XFA_Attribute::ContentType,
- wsContentType, false);
- if (wsContentType == L"text/html")
+ pdfium::Optional<WideString> contentType =
+ pChildNode->JSNode()->TryAttribute(XFA_Attribute::ContentType, false);
+ if (contentType && *contentType == L"text/html")
bRichText = true;
}
return pChildNode;
@@ -84,10 +83,9 @@ CXFA_Node* CXFA_TextProvider::GetTextNode(bool& bRichText) {
CXFA_Node* pChildNode = pValueNode->GetNodeItem(XFA_NODEITEM_FirstChild);
if (pChildNode && pChildNode->GetElementType() == XFA_Element::ExData) {
- WideString wsContentType;
- pChildNode->JSNode()->GetAttribute(XFA_Attribute::ContentType,
- wsContentType, false);
- if (wsContentType == L"text/html")
+ pdfium::Optional<WideString> contentType =
+ pChildNode->JSNode()->TryAttribute(XFA_Attribute::ContentType, false);
+ if (contentType && *contentType == L"text/html")
bRichText = true;
}
return pChildNode;
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<WideString> 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<WideString> 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<WideString> rawValue =
+ pRawValueNode->JSNode()->TryAttribute(XFA_Attribute::Value, false);
+ if (!rawValue || rawValue->IsEmpty())
break;
std::vector<WideString> 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<WideString> 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<CFX_XMLNode> 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<CFX_XMLElement>(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<WideString> 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);