Convert the CFDE_TxtEdtEngine::Insert results into an enum class

This CL converts the return value to be an enum class and updates the
usages to use the names instead of values.

Change-Id: I8b6927551679ac4103775a04187daad2e0d6c569
Reviewed-on: https://pdfium-review.googlesource.com/11512
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

2 files changed, 15 insertions, 15 deletions

diff --git a/xfa/fde/cfde_txtedtengine.cpp b/xfa/fde/cfde_txtedtengine.cpp
index 72beac7718..469ec87cf7 100644
--- a/xfa/fde/cfde_txtedtengine.cpp
+++ b/xfa/fde/cfde_txtedtengine.cpp
@@ -22,13 +22,6 @@ namespace {
 
 const uint32_t kPageWidthMax = 0xffff;
 
-enum FDE_TXTEDT_MODIFY_RET {
-  FDE_TXTEDT_MODIFY_RET_F_Locked = -5,
-  FDE_TXTEDT_MODIFY_RET_F_Invalidate = -4,
-  FDE_TXTEDT_MODIFY_RET_F_Full = -2,
-  FDE_TXTEDT_MODIFY_RET_S_Normal = 0,
-};
-
 class InsertOperation : public IFDE_TxtEdtDoRecord {
  public:
   InsertOperation(CFDE_TxtEdtEngine* pEngine,
@@ -304,9 +297,9 @@ int32_t CFDE_TxtEdtEngine::MoveCaretPos(FDE_CaretMove eMoveCaret, bool bShift) {
   return m_nCaret;
 }
 
-int32_t CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) {
+FDE_EditResult CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) {
   if (IsLocked())
-    return FDE_TXTEDT_MODIFY_RET_F_Locked;
+    return FDE_EditResult::kLocked;
 
   int32_t nLength = str.GetLength();
   CFX_WideString wsTemp;
@@ -322,7 +315,7 @@ int32_t CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) {
 
     int32_t nExpectLength = nTotalLength + nLength;
     if (nTotalLength == m_nLimit)
-      return FDE_TXTEDT_MODIFY_RET_F_Full;
+      return FDE_EditResult::kFull;
 
     if (nExpectLength > m_nLimit)
       nLength -= (nExpectLength - m_nLimit);
@@ -353,12 +346,12 @@ int32_t CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) {
       }
     }
     if (nLength == 0)
-      return FDE_TXTEDT_MODIFY_RET_F_Full;
+      return FDE_EditResult::kFull;
   }
   if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) {
     CFX_WideString wsText = GetPreInsertText(m_nCaret, lpBuffer, nLength);
     if (!m_Param.pEventSink->OnValidate(wsText))
-      return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
+      return FDE_EditResult::kInvalidate;
   }
   if (IsSelect()) {
     DeleteSelect();
@@ -379,7 +372,7 @@ int32_t CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) {
   }
   SetCaretPos(nStart, bBefore);
   m_Param.pEventSink->OnTextChanged(prev);
-  return FDE_TXTEDT_MODIFY_RET_S_Normal;
+  return FDE_EditResult::kSuccess;
 }
 
 void CFDE_TxtEdtEngine::Delete(bool bBackspace) {
diff --git a/xfa/fde/cfde_txtedtengine.h b/xfa/fde/cfde_txtedtengine.h
index 3edd4dc872..b708984ac4 100644
--- a/xfa/fde/cfde_txtedtengine.h
+++ b/xfa/fde/cfde_txtedtengine.h
@@ -49,6 +49,13 @@ enum class FDE_CaretMove {
   End,
 };
 
+enum class FDE_EditResult {
+  kLocked = -5,
+  kInvalidate = -4,
+  kFull = -2,
+  kSuccess = 0,
+};
+
 struct FDE_TXTEDTPARAMS {
   FDE_TXTEDTPARAMS();
   ~FDE_TXTEDTPARAMS();
@@ -93,7 +100,7 @@ class CFDE_TxtEdtEngine {
   int32_t SetCaretPos(int32_t nIndex, bool bBefore);
   int32_t MoveCaretPos(FDE_CaretMove eMoveCaret, bool bShift);
 
-  int32_t Insert(const CFX_WideString& str);
+  FDE_EditResult Insert(const CFX_WideString& str);
   void Delete(bool bBackspace);
 
   void SetLimit(int32_t nLimit) { m_nLimit = nLimit; }
@@ -144,7 +151,7 @@ class CFDE_TxtEdtEngine {
     int32_t nCharIndex;
   };
 
-  enum class LineEnding {
+  enum class LineEnding : uint8_t {
     kAuto,
     kCRLF,
     kCR,