Remove IWFL_WidgetMgr in favor of CFWL_WidgetMgr

xfa/fwl/core/fwl_formimp.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_formimp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/basewidget/fwl_formproxyimp.h"
@@ skipping 133 matching lines @@
   return FWL_Error::Succeeded;
 }
 FWL_Error CFWL_FormImp::GetClientRect(CFX_RectF& rect) {
   if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_Caption) == 0) {
     rect = m_pProperties->m_rtWidget;
     rect.Offset(-rect.left, -rect.top);
     return FWL_Error::Succeeded;
   }
 #ifdef FWL_UseMacSystemBorder
   rect = m_rtRelative;
-  CFWL_WidgetMgr* pWidgetMgr = static_cast<CFWL_WidgetMgr*>(FWL_GetWidgetMgr());
+  CFWL_WidgetMgr* pWidgetMgr = CFWL_WidgetMgr::GetInstance();
   if (!pWidgetMgr)
     return FWL_Error::Indefinite;
 
   rect.left = 0;
   rect.top = 0;
   return FWL_Error::Succeeded;
 #else
   FX_FLOAT x = 0;
   FX_FLOAT y = 0;
   FX_FLOAT t = 0;
@@ skipping 275 matching lines @@
   return m_pSubFocus;
 }
 void CFWL_FormImp::SetSubFocus(CFWL_WidgetImp* pWidget) {
   m_pSubFocus = pWidget;
 }
 
 void CFWL_FormImp::ShowChildWidget(IFWL_Widget* pParent) {
   IFWL_App* pApp = FWL_GetApp();
   if (!pApp)
     return;
-  CFWL_WidgetMgr* pWidgetMgr =
-      static_cast<CFWL_WidgetMgr*>(pApp->GetWidgetMgr());
+
+  CFWL_WidgetMgr* pWidgetMgr = pApp->GetWidgetMgr();
   if (!pWidgetMgr)
     return;
-  IFWL_Widget* pChild =
-      pWidgetMgr->GetWidget(pParent, FWL_WGTRELATION_FirstChild);
+
+  IFWL_Widget* pChild = pWidgetMgr->GetFirstChildWidget(pParent);
   while (pChild) {
     ShowChildWidget(pChild);
-    pChild = pWidgetMgr->GetWidget(pChild, FWL_WGTRELATION_NextSibling);
+    pChild = pWidgetMgr->GetNextSiblingWidget(pChild);
   }
 }
 
 void CFWL_FormImp::RemoveSysButtons() {
   m_rtCaption.Reset();
   delete m_pCloseBox;
   m_pCloseBox = nullptr;
   delete m_pMinBox;
   m_pMinBox = nullptr;
   delete m_pMaxBox;
@@ skipping 140 matching lines @@
 void CFWL_FormImp::GetEdgeRect(CFX_RectF& rtEdge) {
   rtEdge = m_rtRelative;
   if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border) {
     FX_FLOAT fCX = GetBorderSize();
     FX_FLOAT fCY = GetBorderSize(FALSE);
     rtEdge.Deflate(fCX, m_rtCaption.Height(), fCX, fCY);
   }
 }
 void CFWL_FormImp::SetWorkAreaRect() {
   m_rtRestore = m_pProperties->m_rtWidget;
-  CFWL_WidgetMgr* pWidgetMgr = static_cast<CFWL_WidgetMgr*>(FWL_GetWidgetMgr());
+  CFWL_WidgetMgr* pWidgetMgr = CFWL_WidgetMgr::GetInstance();
   if (!pWidgetMgr)
     return;
   m_bSetMaximize = TRUE;
   Repaint(&m_rtRelative);
 }
 void CFWL_FormImp::SetCursor(FX_FLOAT fx, FX_FLOAT fy) {}
 void CFWL_FormImp::Layout() {
   GetRelativeRect(m_rtRelative);
 #ifndef FWL_UseMacSystemBorder
   ReSetSysBtn();
@@ skipping 128 matching lines @@
       *static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::SmallIcon));
   m_fBigIconSz =
       *static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::BigIcon));
 }
 FX_BOOL CFWL_FormImp::HasIcon() {
   IFWL_FormDP* pData =
       static_cast<IFWL_FormDP*>(m_pProperties->m_pDataProvider);
   return !!pData->GetIcon(m_pInterface, FALSE);
 }
 void CFWL_FormImp::UpdateIcon() {
-  CFWL_WidgetMgr* pWidgetMgr = static_cast<CFWL_WidgetMgr*>(FWL_GetWidgetMgr());
+  CFWL_WidgetMgr* pWidgetMgr = CFWL_WidgetMgr::GetInstance();
   if (!pWidgetMgr)
     return;
   IFWL_FormDP* pData =
       static_cast<IFWL_FormDP*>(m_pProperties->m_pDataProvider);
   CFX_DIBitmap* pBigIcon = pData->GetIcon(m_pInterface, TRUE);
   CFX_DIBitmap* pSmallIcon = pData->GetIcon(m_pInterface, FALSE);
   if (pBigIcon)
     m_pBigIcon = pBigIcon;
   if (pSmallIcon)
     m_pSmallIcon = pSmallIcon;
 }
 void CFWL_FormImp::UpdateCaption() {
-  CFWL_WidgetMgr* pWidgetMgr = static_cast<CFWL_WidgetMgr*>(FWL_GetWidgetMgr());
+  CFWL_WidgetMgr* pWidgetMgr = CFWL_WidgetMgr::GetInstance();
   if (!pWidgetMgr)
     return;
   IFWL_FormDP* pData =
       static_cast<IFWL_FormDP*>(m_pProperties->m_pDataProvider);
   if (!pData)
     return;
   CFX_WideString text;
   pData->GetCaption(m_pInterface, text);
 }
 void CFWL_FormImp::DoWidthLimit(FX_FLOAT& fLeft,
@@ skipping 136 matching lines @@
         case FWL_MouseCommand::LeftButtonDblClk: {
           OnLButtonDblClk(pMsg);
           break;
         }
         default:
           break;
       }
       break;
     }
     case CFWL_MessageType::Size: {
-      CFWL_WidgetMgr* pWidgetMgr =
-          static_cast<CFWL_WidgetMgr*>(FWL_GetWidgetMgr());
+      CFWL_WidgetMgr* pWidgetMgr = CFWL_WidgetMgr::GetInstance();
       if (!pWidgetMgr)
         return;
 
       pWidgetMgr->AddRedrawCounts(m_pOwner->m_pInterface);
       if (!m_pOwner->m_bSetMaximize)
         break;
 
       m_pOwner->m_bSetMaximize = FALSE;
       CFWL_MsgSize* pMsg = static_cast<CFWL_MsgSize*>(pMessage);
       m_pOwner->m_pProperties->m_rtWidget.left = 0;
@@ skipping 172 matching lines @@
 }
 void CFWL_FormImpDelegate::OnWindowMove(CFWL_MsgWindowMove* pMsg) {
   m_pOwner->m_pProperties->m_rtWidget.left = pMsg->m_fx;
   m_pOwner->m_pProperties->m_rtWidget.top = pMsg->m_fy;
 }
 void CFWL_FormImpDelegate::OnClose(CFWL_MsgClose* pMsg) {
   CFWL_EvtClose eClose;
   eClose.m_pSrcTarget = m_pOwner->m_pInterface;
   m_pOwner->DispatchEvent(&eClose);
 }