Add CFWL_ListBox::IsMultiSelection().

xfa/fwl/core/cfwl_listbox.h

 // 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
 
 #ifndef XFA_FWL_CORE_CFWL_LISTBOX_H_
 #define XFA_FWL_CORE_CFWL_LISTBOX_H_
 
 #include <memory>
@@ skipping 95 matching lines @@
   void SetSelection(CFWL_ListItem* hStart, CFWL_ListItem* hEnd, bool bSelected);
   CFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
   bool ScrollToVisible(CFWL_ListItem* hItem);
   void InitScrollBar(bool bVert = true);
   bool IsShowScrollBar(bool bVert);
   CFWL_ScrollBar* GetVertScrollBar() const { return m_pVertScrollBar.get(); }
   const CFX_RectF& GetRTClient() const { return m_rtClient; }
 
  private:
   void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect);
+  bool IsMultiSelection() const;
   bool IsItemSelected(CFWL_ListItem* hItem);
   void ClearSelection();
   void SelectAll();
   CFWL_ListItem* GetFocusedItem();
   void SetFocusItem(CFWL_ListItem* hItem);
   bool GetItemCheckRectInternal(CFWL_ListItem* hItem, CFX_RectF& rtCheck);
   bool SetItemChecked(CFWL_ListItem* hItem, bool bChecked);
   bool GetItemChecked(CFWL_ListItem* hItem);
   void DrawBkground(CFX_Graphics* pGraphics,
                     IFWL_ThemeProvider* pTheme,
@@ skipping 34 matching lines @@
   int32_t m_iTTOAligns;
   CFWL_ListItem* m_hAnchor;
   FX_FLOAT m_fItemHeight;
   FX_FLOAT m_fScorllBarWidth;
   bool m_bLButtonDown;
   IFWL_ThemeProvider* m_pScrollBarTP;
   std::vector<std::unique_ptr<CFWL_ListItem>> m_ItemArray;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_LISTBOX_H_