Merge IFWL and CFWL classes.

xfa/fwl/core/cfwl_combobox.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_COMBOBOX_H_
 #define XFA_FWL_CORE_CFWL_COMBOBOX_H_
 
 #include <memory>
-#include <vector>
 
-#include "xfa/fwl/core/cfwl_widget.h"
-#include "xfa/fwl/core/ifwl_combobox.h"
+#include "xfa/fwl/core/cfwl_comboboxproxy.h"
+#include "xfa/fwl/core/cfwl_comboedit.h"
+#include "xfa/fwl/core/cfwl_combolist.h"
+#include "xfa/fwl/core/cfwl_form.h"
+#include "xfa/fwl/core/cfwl_listbox.h"
+#include "xfa/fxgraphics/cfx_graphics.h"
+
+class CFWL_WidgetProperties;
+class CFWL_ComboBox;
+class CFWL_ComboBoxProxy;
+class CFWL_FormProxy;
+class CFWL_ListBox;
+class CFWL_Widget;
+
+#define FWL_STYLEEXT_CMB_DropList (0L << 0)
+#define FWL_STYLEEXT_CMB_DropDown (1L << 0)
+#define FWL_STYLEEXT_CMB_Sort (1L << 1)
+#define FWL_STYLEEXT_CMB_ListDrag (1L << 2)
+#define FWL_STYLEEXT_CMB_OwnerDraw (1L << 3)
+#define FWL_STYLEEXT_CMB_EditHNear (0L << 4)
+#define FWL_STYLEEXT_CMB_EditHCenter (1L << 4)
+#define FWL_STYLEEXT_CMB_EditHFar (2L << 4)
+#define FWL_STYLEEXT_CMB_EditVNear (0L << 6)
+#define FWL_STYLEEXT_CMB_EditVCenter (1L << 6)
+#define FWL_STYLEEXT_CMB_EditVFar (2L << 6)
+#define FWL_STYLEEXT_CMB_EditJustified (1L << 8)
+#define FWL_STYLEEXT_CMB_EditDistributed (2L << 8)
+#define FWL_STYLEEXT_CMB_EditHAlignMask (3L << 4)
+#define FWL_STYLEEXT_CMB_EditVAlignMask (3L << 6)
+#define FWL_STYLEEXT_CMB_EditHAlignModeMask (3L << 8)
+#define FWL_STYLEEXT_CMB_ListItemLeftAlign (0L << 10)
+#define FWL_STYLEEXT_CMB_ListItemCenterAlign (1L << 10)
+#define FWL_STYLEEXT_CMB_ListItemRightAlign (2L << 10)
+#define FWL_STYLEEXT_CMB_ListItemAlignMask (3L << 10)
+#define FWL_STYLEEXT_CMB_ListItemText (0L << 12)
+#define FWL_STYLEEXT_CMB_ListItemIconText (1L << 12)
+#define FWL_STYLEEXT_CMB_ReadOnly (1L << 13)
 
 class CFWL_ComboBox : public CFWL_Widget {
  public:
   explicit CFWL_ComboBox(const CFWL_App* pApp);
   ~CFWL_ComboBox() override;
 
-  void Initialize();
+  // CFWL_Widget
+  FWL_Type GetClassID() const override;
+  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
+  void ModifyStylesEx(uint32_t dwStylesExAdded,
+                      uint32_t dwStylesExRemoved) override;
+  void SetStates(uint32_t dwStates, bool bSet = true) override;
+  void Update() override;
+  FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
+  void DrawWidget(CFX_Graphics* pGraphics,
+                  const CFX_Matrix* pMatrix = nullptr) override;
+  void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override;
+  void OnProcessMessage(CFWL_Message* pMessage) override;
+  void OnProcessEvent(CFWL_Event* pEvent) override;
+  void OnDrawWidget(CFX_Graphics* pGraphics,
+                    const CFX_Matrix* pMatrix) override;
+
+  void GetTextByIndex(int32_t iIndex, CFX_WideString& wsText) const;
+  int32_t GetCurSel() const { return m_iCurSel; }
+  void SetCurSel(int32_t iSel);
 
   void AddString(const CFX_WideStringC& wsText);
   bool RemoveAt(int32_t iIndex);  // Returns false iff |iIndex| out of range.
   void RemoveAll();
 
-  void GetTextByIndex(int32_t iIndex, CFX_WideString& wsText) const;
-  int32_t GetCurSel() const;
-  void SetCurSel(int32_t iSel);
-
   void SetEditText(const CFX_WideString& wsText);
   void GetEditText(CFX_WideString& wsText,
                    int32_t nStart = 0,
                    int32_t nCount = -1) const;
 
   void OpenDropDownList(bool bActivate);
 
-  bool EditCanUndo();
-  bool EditCanRedo();
-  bool EditUndo();
-  bool EditRedo();
-  bool EditCanCopy();
-  bool EditCanCut();
-  bool EditCanSelectAll();
-  bool EditCopy(CFX_WideString& wsCopy);
-  bool EditCut(CFX_WideString& wsCut);
-  bool EditPaste(const CFX_WideString& wsPaste);
-  void EditSelectAll();
-  void EditDelete();
-  void EditDeSelect();
+  bool EditCanUndo() const { return m_pEdit->CanUndo(); }
+  bool EditCanRedo() const { return m_pEdit->CanRedo(); }
+  bool EditUndo() { return m_pEdit->Undo(); }
+  bool EditRedo() { return m_pEdit->Redo(); }
+  bool EditCanCopy() const { return m_pEdit->CountSelRanges() > 0; }
+  bool EditCanCut() const {
+    if (m_pEdit->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly)
+      return false;
+    return EditCanCopy();
+  }
+  bool EditCanSelectAll() const { return m_pEdit->GetTextLength() > 0; }
+  bool EditCopy(CFX_WideString& wsCopy) const { return m_pEdit->Copy(wsCopy); }
+  bool EditCut(CFX_WideString& wsCut) { return m_pEdit->Cut(wsCut); }
+  bool EditPaste(const CFX_WideString& wsPaste) {
+    return m_pEdit->Paste(wsPaste);
+  }
+  void EditSelectAll() { m_pEdit->AddSelRange(0); }
+  void EditDelete() { m_pEdit->ClearText(); }
+  void EditDeSelect() { m_pEdit->ClearSelections(); }
 
-  void GetBBox(CFX_RectF& rect);
+  void GetBBox(CFX_RectF& rect) const;
   void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved);
+
+  void DrawStretchHandler(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix);
+  bool IsDropListVisible() const {
+    return m_pComboBoxProxy &&
+           !(m_pComboBoxProxy->GetStates() & FWL_WGTSTATE_Invisible);
+  }
+  void ShowDropList(bool bActivate);
+
+  CFWL_ComboEdit* GetComboEdit() const { return m_pEdit.get(); }
+
+  void ProcessSelChanged(bool bLButtonUp);
+  int32_t GetCurrentSelection() const { return m_iCurSel; }
+
+ private:
+  bool IsDropDownStyle() const {
+    return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_DropDown);
+  }
+  void MatchEditText();
+  void SyncEditText(int32_t iListItem);
+  void Layout();
+  void ResetTheme();
+  void ResetEditAlignment();
+  void ResetListItemAlignment();
+  void InitProxyForm();
+  void DisForm_InitComboList();
+  void DisForm_InitComboEdit();
+  void DisForm_ShowDropList(bool bActivate);
+  bool DisForm_IsDropListVisible() const {
+    return !(m_pListBox->GetStates() & FWL_WGTSTATE_Invisible);
+  }
+  void DisForm_ModifyStylesEx(uint32_t dwStylesExAdded,
+                              uint32_t dwStylesExRemoved);
+  void DisForm_Update();
+  FWL_WidgetHit DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy);
+  void DisForm_DrawWidget(CFX_Graphics* pGraphics,
+                          const CFX_Matrix* pMatrix = nullptr);
+  void DisForm_GetBBox(CFX_RectF& rect) const;
+  void DisForm_Layout();
+  void OnFocusChanged(CFWL_Message* pMsg, bool bSet = true);
+  void OnLButtonDown(CFWL_MsgMouse* pMsg);
+  void OnLButtonUp(CFWL_MsgMouse* pMsg);
+  void OnMouseMove(CFWL_MsgMouse* pMsg);
+  void OnMouseLeave(CFWL_MsgMouse* pMsg);
+  void OnKey(CFWL_MsgKey* pMsg);
+  void DoSubCtrlKey(CFWL_MsgKey* pMsg);
+  void DisForm_OnProcessMessage(CFWL_Message* pMessage);
+  void DisForm_OnLButtonDown(CFWL_MsgMouse* pMsg);
+  void DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet = true);
+  void DisForm_OnKey(CFWL_MsgKey* pMsg);
+
+  CFX_RectF m_rtClient;
+  CFX_RectF m_rtContent;
+  CFX_RectF m_rtBtn;
+  CFX_RectF m_rtList;
+  CFX_RectF m_rtProxy;
+  CFX_RectF m_rtHandler;
+  std::unique_ptr<CFWL_ComboEdit> m_pEdit;
+  std::unique_ptr<CFWL_ComboList> m_pListBox;
+  CFWL_ComboBoxProxy* m_pComboBoxProxy;  // Can this be a unique_ptr?
+  bool m_bLButtonDown;
+  bool m_bUpFormHandler;
+  int32_t m_iCurSel;
+  int32_t m_iBtnState;
+  FX_FLOAT m_fComboFormHandler;
+  FX_FLOAT m_fItemHeight;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_COMBOBOX_H_