Convert OnBeforeKeyStoke to remove in-out param

This CL removes the in-out params from OnBeforeKeyStroke and instead
returns a std::pair<bool, bool>.

Change-Id: I246cf51652da7e05ea71f582b523aa428cbbd3b8
Reviewed-on: https://pdfium-review.googlesource.com/7337
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

2 files changed, 23 insertions, 28 deletions

diff --git a/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
index d318111ee6..d718e7ca40 100644
--- a/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
@@ -839,16 +839,16 @@ bool CFFL_InteractiveFormFiller::IsValidAnnot(CPDFSDK_PageView* pPageView,
   return pPageView && pPageView->IsValidAnnot(pAnnot->GetPDFAnnot());
 }
 
-void CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
+std::pair<bool, bool> CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
     void* pPrivateData,
     CFX_WideString& strChange,
     const CFX_WideString& strChangeEx,
     int nSelStart,
     int nSelEnd,
     bool bKeyDown,
-    bool& bRC,
-    bool& bExit,
     uint32_t nFlag) {
+  bool bRC = true;
+  bool bExit = false;
   CFFL_PrivateData* pData = reinterpret_cast<CFFL_PrivateData*>(pPrivateData);
   ASSERT(pData->pWidget);
 
@@ -857,18 +857,15 @@ void CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
 #ifdef PDF_ENABLE_XFA
   if (pFormFiller->IsFieldFull(pData->pPageView)) {
     CPDFSDK_Annot::ObservedPtr pObserved(pData->pWidget);
-    if (OnFull(&pObserved, pData->pPageView, nFlag) || !pObserved) {
-      bExit = true;
-      return;
-    }
+    if (OnFull(&pObserved, pData->pPageView, nFlag) || !pObserved)
+      return {bRC, true};
   }
 #endif  // PDF_ENABLE_XFA
 
-  if (m_bNotifying)
-    return;
-
-  if (!pData->pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict())
-    return;
+  if (m_bNotifying ||
+      !pData->pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
+    return {bRC, bExit};
+  }
 
   CFX_AutoRestorer<bool> restorer(&m_bNotifying);
   m_bNotifying = true;
@@ -897,13 +894,11 @@ void CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
                                  pData->pPageView)) {
     if (!IsValidAnnot(pData->pPageView, pData->pWidget))
       bExit = true;
-    return;
+    return {bRC, bExit};
   }
 
-  if (!pObserved || !IsValidAnnot(pData->pPageView, pData->pWidget)) {
-    bExit = true;
-    return;
-  }
+  if (!pObserved || !IsValidAnnot(pData->pPageView, pData->pWidget))
+    return {bRC, true};
 
   if (nAge != pData->pWidget->GetAppearanceAge()) {
     CPWL_Wnd* pWnd = pFormFiller->ResetPDFWindow(
@@ -919,8 +914,8 @@ void CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
   bRC = false;
 
   if (pFormFillEnv->GetFocusAnnot() == pData->pWidget)
-    return;
+    return {bRC, bExit};
 
   pFormFiller->CommitData(pData->pPageView, nFlag);
-  bExit = true;
+  return {bRC, true};
 }
diff --git a/fpdfsdk/formfiller/cffl_interactiveformfiller.h b/fpdfsdk/formfiller/cffl_interactiveformfiller.h
index 05fdf0d6c7..fb141e17a4 100644
--- a/fpdfsdk/formfiller/cffl_interactiveformfiller.h
+++ b/fpdfsdk/formfiller/cffl_interactiveformfiller.h
@@ -9,6 +9,7 @@
 
 #include <map>
 #include <memory>
+#include <utility>
 
 #include "core/fxcrt/cfx_unowned_ptr.h"
 #include "fpdfsdk/cpdfsdk_annot.h"
@@ -129,15 +130,14 @@ class CFFL_InteractiveFormFiller : public IPWL_Filler_Notify {
                        float fPopupMax,
                        bool* bBottom,
                        float* fPopupRet) override;
-  void OnBeforeKeyStroke(void* pPrivateData,
-                         CFX_WideString& strChange,
-                         const CFX_WideString& strChangeEx,
-                         int nSelStart,
-                         int nSelEnd,
-                         bool bKeyDown,
-                         bool& bRC,
-                         bool& bExit,
-                         uint32_t nFlag) override;
+  // Returns {bRC, bExit}.
+  std::pair<bool, bool> OnBeforeKeyStroke(void* pPrivateData,
+                                          CFX_WideString& strChange,
+                                          const CFX_WideString& strChangeEx,
+                                          int nSelStart,
+                                          int nSelEnd,
+                                          bool bKeyDown,
+                                          uint32_t nFlag) override;
 #ifdef PDF_ENABLE_XFA
   bool OnPopupPreOpen(void* pPrivateData, uint32_t nFlag) override;
   bool OnPopupPostOpen(void* pPrivateData, uint32_t nFlag) override;