Add flag to notify if a node widget is ready

This CL updates CXFA_Object to have a flag which annotates if the node
is ready. Ready means that we've gone through the OnNodeReady call in
CXFA_FFNotify. Previously we'd check if the WidgetAcc exists on the node
which is created in OnNodeReady.

This CL replaces all the points where we check for a WidgetAcc existing
with a IsWidgetReady() call.

Change-Id: I54e8160269c3104cdae7a516c1814c13bee15130
Reviewed-on: https://pdfium-review.googlesource.com/23190
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
index f6f165fe59..422ba4e58a 100644
--- a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
+++ b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
@@ -70,9 +70,8 @@ CXFA_Node* FormValueNode_CreateChild(CXFA_Node* pValueNode, XFA_Element iType) {
 }
 
 void FormValueNode_MatchNoneCreateChild(CXFA_Node* pFormNode) {
-  CXFA_WidgetAcc* pWidgetAcc = pFormNode->GetWidgetAcc();
-  ASSERT(pWidgetAcc);
-  pWidgetAcc->GetUIType();
+  ASSERT(pFormNode->IsWidgetReady());
+  pFormNode->GetWidgetAcc()->GetUIType();
 }
 
 bool FormValueNode_SetChildContent(CXFA_Node* pValueNode,
@@ -132,8 +131,8 @@ void CreateDataBinding(CXFA_Node* pFormNode,
   if (eType != XFA_Element::Field && eType != XFA_Element::ExclGroup)
     return;
 
+  ASSERT(pFormNode->IsWidgetReady());
   CXFA_WidgetAcc* pWidgetAcc = pFormNode->GetWidgetAcc();
-  ASSERT(pWidgetAcc);
   XFA_Element eUIType = pWidgetAcc->GetUIType();
   auto* defValue = pFormNode->JSObject()->GetOrCreateProperty<CXFA_Value>(
       0, XFA_Element::Value);