Convert FWL_ERR into an enum class.

xfa/fwl/core/fwl_widgetmgrimp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fwl/core/fwl_widgetmgrimp.h"
 
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/fwl_appimp.h"
@@ skipping 201 matching lines @@
     if (pItem->pParent->pChild == pChild) {
       pItem->pParent->pChild = pItem;
     }
   } else {
     pItem->pParent->pChild = pItem;
     pItem->pPrevious = NULL;
     pItem->pNext = NULL;
   }
   return TRUE;
 }
-FWL_ERR CFWL_WidgetMgr::RepaintWidget(IFWL_Widget* pWidget,
-                                      const CFX_RectF* pRect) {
+FWL_Error CFWL_WidgetMgr::RepaintWidget(IFWL_Widget* pWidget,
+                                        const CFX_RectF* pRect) {
   if (!m_pAdapter)
-    return FWL_ERR_Indefinite;
+    return FWL_Error::Indefinite;
   IFWL_Widget* pNative = pWidget;
   CFX_RectF rect(*pRect);
   if (IsFormDisabled()) {
     IFWL_Widget* pOuter = pWidget->GetOuter();
     while (pOuter) {
       CFX_RectF rtTemp;
       pNative->GetWidgetRect(rtTemp);
       rect.left += rtTemp.left;
       rect.top += rtTemp.top;
       pNative = pOuter;
       pOuter = pOuter->GetOuter();
     }
   } else if (!IsAbleNative(pWidget)) {
     pNative = GetWidget(pWidget, FWL_WGTRELATION_SystemForm);
     if (!pNative)
-      return FWL_ERR_Indefinite;
+      return FWL_Error::Indefinite;
     pWidget->TransformTo(pNative, rect.left, rect.top);
   }
   AddRedrawCounts(pNative);
   return m_pAdapter->RepaintWidget(pNative, &rect);
 }
 void CFWL_WidgetMgr::AddWidget(IFWL_Widget* pWidget) {
   CFWL_WidgetMgrItem* pParentItem = GetWidgetMgrItem(NULL);
   CFWL_WidgetMgrItem* pItem = GetWidgetMgrItem(pWidget);
   if (!pItem) {
     pItem = new CFWL_WidgetMgrItem;
@@ skipping 112 matching lines @@
 FX_BOOL CFWL_WidgetMgr::IsChild(IFWL_Widget* pChild, IFWL_Widget* pParent) {
   IFWL_Widget* pTemp = pChild;
   do {
     if (pTemp == pParent) {
       return TRUE;
     }
     pTemp = GetWidget(pTemp, FWL_WGTRELATION_Parent);
   } while (pTemp);
   return FALSE;
 }
-FWL_ERR CFWL_WidgetMgr::SetWidgetRect_Native(IFWL_Widget* pWidget,
-                                             const CFX_RectF& rect) {
+
+FWL_Error CFWL_WidgetMgr::SetWidgetRect_Native(IFWL_Widget* pWidget,
+                                               const CFX_RectF& rect) {
   if (FWL_UseOffscreen(pWidget)) {
     CFWL_WidgetMgrItem* pItem = GetWidgetMgrItem(pWidget);
     pItem->iRedrawCounter++;
     if (pItem->pOffscreen) {
       CFX_RenderDevice* pDevice = pItem->pOffscreen->GetRenderDevice();
       if (pDevice && pDevice->GetBitmap()) {
         CFX_DIBitmap* pBitmap = pDevice->GetBitmap();
         if (pBitmap->GetWidth() - rect.width > 1 ||
             pBitmap->GetHeight() - rect.height > 1) {
           delete pItem->pOffscreen;
           pItem->pOffscreen = NULL;
         }
       }
     }
 #if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
     pItem->bOutsideChanged = !m_rtScreen.Contains(rect);
 #endif
   }
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
+
 IFWL_Widget* CFWL_WidgetMgr::GetWidgetAtPoint(IFWL_Widget* parent,
                                               FX_FLOAT x,
                                               FX_FLOAT y) {
   if (!parent)
     return NULL;
   FX_FLOAT x1;
   FX_FLOAT y1;
   IFWL_Widget* child = GetWidget(parent, FWL_WGTRELATION_LastChild);
   while (child) {
     if ((child->GetStates() & FWL_WGTSTATE_Invisible) == 0) {
@@ skipping 218 matching lines @@
                                            FX_FLOAT fMinHeight,
                                            FX_FLOAT fMaxHeight,
                                            const CFX_RectF& rtAnchor,
                                            CFX_RectF& rtPopup) {
   CXFA_FWLAdapterWidgetMgr* pSDApapter = GetAdapterWidgetMgr();
   return pSDApapter->GetPopupPos(pWidget, fMinHeight, fMaxHeight, rtAnchor,
                                  rtPopup);
 }
 CFWL_WidgetMgrDelegate::CFWL_WidgetMgrDelegate(CFWL_WidgetMgr* pWidgetMgr)
     : m_pWidgetMgr(pWidgetMgr) {}
-FWL_ERR CFWL_WidgetMgrDelegate::OnSetCapability(uint32_t dwCapability) {
+FWL_Error CFWL_WidgetMgrDelegate::OnSetCapability(uint32_t dwCapability) {
   m_pWidgetMgr->m_dwCapability = dwCapability;
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
-int32_t CFWL_WidgetMgrDelegate::OnProcessMessageToForm(CFWL_Message* pMessage) {
+
+void CFWL_WidgetMgrDelegate::OnProcessMessageToForm(CFWL_Message* pMessage) {
   if (!pMessage)
-    return 0;
+    return;
   if (!pMessage->m_pDstTarget)
-    return 0;
+    return;
 
   IFWL_Widget* pDstWidget = pMessage->m_pDstTarget;
   IFWL_App* pApp = pDstWidget->GetOwnerApp();
   if (!pApp)
-    return 0;
+    return;
 
   CFWL_NoteDriver* pNoteDriver =
       static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
   if (!pNoteDriver)
-    return 0;
+    return;
 
   if (m_pWidgetMgr->IsThreadEnabled())
     pMessage = static_cast<CFWL_Message*>(pMessage->Clone());
   if (m_pWidgetMgr->IsFormDisabled())
     pNoteDriver->ProcessMessage(pMessage);
   else
     pNoteDriver->QueueMessage(pMessage);
 
 #if (_FX_OS_ == _FX_MACOSX_)
   CFWL_NoteLoop* pTopLoop = pNoteDriver->GetTopLoop();
-  if (pTopLoop) {
+  if (pTopLoop)
     pNoteDriver->UnqueueMessage(pTopLoop);
-  }
 #endif
-  if (m_pWidgetMgr->IsThreadEnabled()) {
+
+  if (m_pWidgetMgr->IsThreadEnabled())
     pMessage->Release();
-  }
-  return FWL_ERR_Succeeded;
+
+  return;
 }
 
-FWL_ERR CFWL_WidgetMgrDelegate::OnDrawWidget(IFWL_Widget* pWidget,
-                                             CFX_Graphics* pGraphics,
-                                             const CFX_Matrix* pMatrix) {
-  if (!pWidget)
-    return FWL_ERR_Indefinite;
-  if (!pGraphics)
-    return FWL_ERR_Indefinite;
+void CFWL_WidgetMgrDelegate::OnDrawWidget(IFWL_Widget* pWidget,
+                                          CFX_Graphics* pGraphics,
+                                          const CFX_Matrix* pMatrix) {
+  if (!pWidget || !pGraphics)
+    return;
 
   CFX_Graphics* pTemp = DrawWidgetBefore(pWidget, pGraphics, pMatrix);
   CFX_RectF clipCopy;
   pWidget->GetWidgetRect(clipCopy);
   clipCopy.left = clipCopy.top = 0;
   if (bUseOffscreenDirect(pWidget)) {
     DrawWidgetAfter(pWidget, pGraphics, clipCopy, pMatrix);
-    return FWL_ERR_Succeeded;
+    return;
   }
   CFX_RectF clipBounds;
 
 #if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_) || \
     (_FX_OS_ == _FX_LINUX_DESKTOP_) || (_FX_OS_ == _FX_ANDROID_)
   IFWL_WidgetDelegate* pDelegate = pWidget->SetDelegate(NULL);
   pDelegate->OnDrawWidget(pTemp, pMatrix);
   pGraphics->GetClipRect(clipBounds);
   clipCopy = clipBounds;
 #elif(_FX_OS_ == _FX_MACOSX_)
@@ skipping 13 matching lines @@
   if (!m_pWidgetMgr->IsFormDisabled()) {
     CFX_RectF rtClient;
     pWidget->GetClientRect(rtClient);
     clipBounds.Intersect(rtClient);
   }
   if (!clipBounds.IsEmpty())
     DrawChild(pWidget, clipBounds, pTemp, pMatrix);
 
   DrawWidgetAfter(pWidget, pGraphics, clipCopy, pMatrix);
   m_pWidgetMgr->ResetRedrawCounts(pWidget);
-  return FWL_ERR_Succeeded;
 }
 
 void CFWL_WidgetMgrDelegate::DrawChild(IFWL_Widget* parent,
                                        const CFX_RectF& rtClip,
                                        CFX_Graphics* pGraphics,
                                        const CFX_Matrix* pMatrix) {
   if (!parent)
     return;
 
   FX_BOOL bFormDisable = m_pWidgetMgr->IsFormDisabled();
@@ skipping 201 matching lines @@
     temp.Deflate(50, 50);
     if (!temp.Contains(r))
       return FALSE;
 
     pItem->bOutsideChanged = FALSE;
   }
 #endif
 
   return pItem->iRedrawCounter == 0;
 }