Merge IFWL and CFWL classes.

xfa/fwl/core/ifwl_widget.h

Index: xfa/fwl/core/ifwl_widget.h
diff --git a/xfa/fwl/core/ifwl_widget.h b/xfa/fwl/core/ifwl_widget.h
deleted file mode 100644
index 056a0c861ec055fd2eb549972f7abe115ea69637..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_widget.h
+++ /dev/null
@@ -1,217 +0,0 @@
-// 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_IFWL_WIDGET_H_
-#define XFA_FWL_CORE_IFWL_WIDGET_H_
-
-#include <memory>
-
-#include "core/fxcrt/fx_coordinates.h"
-#include "core/fxcrt/fx_system.h"
-#include "xfa/fwl/core/cfwl_event.h"
-#include "xfa/fwl/core/cfwl_themepart.h"
-#include "xfa/fwl/core/cfwl_widgetmgr.h"
-#include "xfa/fwl/core/fwl_widgethit.h"
-#include "xfa/fwl/core/ifwl_widgetdelegate.h"
-#include "xfa/fwl/theme/cfwl_widgettp.h"
-
-// FWL contains two parallel inheritance hierarchies, which reference each
-// other via pointers as follows:
-//
-//                  m_pAssociate
-//                  <----------
-//      CFWL_Widget ----------> IFWL_Widget
-//           |       m_pIface        |
-//           A                       A
-//           |                       |
-//      CFWL_...                IFWL_...
-//
-// TODO(tsepez): Collapse these into a single hierarchy.
-//
-
-enum class FWL_Type {
-  Unknown = 0,
-
-  Barcode,
-  Caret,
-  CheckBox,
-  ComboBox,
-  DateTimePicker,
-  Edit,
-  Form,
-  FormProxy,
-  ListBox,
-  MonthCalendar,
-  PictureBox,
-  PushButton,
-  ScrollBar,
-  SpinButton,
-  ToolTip
-};
-
-class CFWL_AppImp;
-class CFWL_MsgKey;
-class CFWL_Widget;
-class CFWL_WidgetProperties;
-class CFWL_WidgetMgr;
-class CFWL_App;
-class IFWL_ThemeProvider;
-class IFWL_Widget;
-enum class FWL_Type;
-
-class IFWL_Widget : public IFWL_WidgetDelegate {
- public:
-  ~IFWL_Widget() override;
-
-  virtual FWL_Type GetClassID() const = 0;
-  virtual bool IsInstance(const CFX_WideStringC& wsClass) const;
-  virtual void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false);
-  virtual void GetClientRect(CFX_RectF& rect);
-  virtual void ModifyStylesEx(uint32_t dwStylesExAdded,
-                              uint32_t dwStylesExRemoved);
-  virtual void SetStates(uint32_t dwStates, bool bSet = true);
-  virtual void Update() = 0;
-  virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
-  virtual void DrawWidget(CFX_Graphics* pGraphics,
-                          const CFX_Matrix* pMatrix = nullptr) = 0;
-  virtual void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
-
-  // IFWL_WidgetDelegate.
-  void OnProcessMessage(CFWL_Message* pMessage) override;
-  void OnProcessEvent(CFWL_Event* pEvent) override;
-  void OnDrawWidget(CFX_Graphics* pGraphics,
-                    const CFX_Matrix* pMatrix = nullptr) override;
-
-  void SetWidgetRect(const CFX_RectF& rect);
-
-  void SetParent(IFWL_Widget* pParent);
-
-  IFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); }
-  IFWL_Widget* GetOuter() const { return m_pOuter; }
-
-  uint32_t GetStyles() const;
-  void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved);
-  uint32_t GetStylesEx() const;
-  uint32_t GetStates() const;
-
-  void LockUpdate() { m_iLock++; }
-  void UnlockUpdate() {
-    if (IsLocked())
-      m_iLock--;
-  }
-
-  void TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
-  void GetMatrix(CFX_Matrix& matrix, bool bGlobal = false);
-  IFWL_ThemeProvider* GetThemeProvider() const;
-
-  void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; }
-  IFWL_WidgetDelegate* GetDelegate() {
-    return m_pDelegate ? m_pDelegate : this;
-  }
-  const IFWL_WidgetDelegate* GetDelegate() const {
-    return m_pDelegate ? m_pDelegate : this;
-  }
-
-  const CFWL_App* GetOwnerApp() const { return m_pOwnerApp; }
-  uint32_t GetEventKey() const { return m_nEventKey; }
-  void SetEventKey(uint32_t key) { m_nEventKey = key; }
-
-  void* GetLayoutItem() const { return m_pLayoutItem; }
-  void SetLayoutItem(void* pItem) { m_pLayoutItem = pItem; }
-
-  void SetAssociateWidget(CFWL_Widget* pAssociate) {
-    m_pAssociate = pAssociate;
-  }
-
-  void SetFocus(bool bFocus);
-  void Repaint(const CFX_RectF* pRect = nullptr);
-
- protected:
-  IFWL_Widget(const CFWL_App* app,
-              std::unique_ptr<CFWL_WidgetProperties> properties,
-              IFWL_Widget* pOuter);
-
-  bool IsEnabled() const;
-  bool IsActive() const;
-  bool IsLocked() const { return m_iLock > 0; }
-  bool HasBorder() const;
-  bool HasEdge() const;
-  void GetEdgeRect(CFX_RectF& rtEdge);
-  FX_FLOAT GetBorderSize(bool bCX = true);
-  FX_FLOAT GetEdgeWidth();
-  void GetRelativeRect(CFX_RectF& rect);
-  void* GetThemeCapacity(CFWL_WidgetCapacity dwCapacity);
-  IFWL_ThemeProvider* GetAvailableTheme();
-  CFX_SizeF CalcTextSize(const CFX_WideString& wsText,
-                         IFWL_ThemeProvider* pTheme,
-                         bool bMultiLine = false,
-                         int32_t iLineWidth = -1);
-  void CalcTextRect(const CFX_WideString& wsText,
-                    IFWL_ThemeProvider* pTheme,
-                    uint32_t dwTTOStyles,
-                    int32_t iTTOAlign,
-                    CFX_RectF& rect);
-  void SetGrab(bool bSet);
-  void GetPopupPos(FX_FLOAT fMinHeight,
-                   FX_FLOAT fMaxHeight,
-                   const CFX_RectF& rtAnchor,
-                   CFX_RectF& rtPopup);
-  void RegisterEventTarget(IFWL_Widget* pEventSource);
-  void UnregisterEventTarget();
-  void DispatchKeyEvent(CFWL_MsgKey* pNote);
-  void DispatchEvent(CFWL_Event* pEvent);
-  void DrawBorder(CFX_Graphics* pGraphics,
-                  CFWL_Part iPartBorder,
-                  IFWL_ThemeProvider* pTheme,
-                  const CFX_Matrix* pMatrix = nullptr);
-  void DrawEdge(CFX_Graphics* pGraphics,
-                CFWL_Part iPartEdge,
-                IFWL_ThemeProvider* pTheme,
-                const CFX_Matrix* pMatrix = nullptr);
-
-  const CFWL_App* const m_pOwnerApp;
-  CFWL_WidgetMgr* const m_pWidgetMgr;
-  std::unique_ptr<CFWL_WidgetProperties> m_pProperties;
-  IFWL_Widget* m_pOuter;
-  int32_t m_iLock;
-
- private:
-  IFWL_Widget* GetParent() { return m_pWidgetMgr->GetParentWidget(this); }
-  CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent);
-
-  bool IsVisible() const;
-  bool IsOverLapper() const;
-  bool IsPopup() const;
-  bool IsChild() const;
-  bool IsOffscreen() const;
-  IFWL_Widget* GetRootOuter();
-  bool GetPopupPosMenu(FX_FLOAT fMinHeight,
-                       FX_FLOAT fMaxHeight,
-                       const CFX_RectF& rtAnchor,
-                       CFX_RectF& rtPopup);
-  bool GetPopupPosComboBox(FX_FLOAT fMinHeight,
-                           FX_FLOAT fMaxHeight,
-                           const CFX_RectF& rtAnchor,
-                           CFX_RectF& rtPopup);
-  bool GetPopupPosGeneral(FX_FLOAT fMinHeight,
-                          FX_FLOAT fMaxHeight,
-                          const CFX_RectF& rtAnchor,
-                          CFX_RectF& rtPopup);
-  bool GetScreenSize(FX_FLOAT& fx, FX_FLOAT& fy);
-  void DrawBackground(CFX_Graphics* pGraphics,
-                      CFWL_Part iPartBk,
-                      IFWL_ThemeProvider* pTheme,
-                      const CFX_Matrix* pMatrix = nullptr);
-  void NotifyDriver();
-  bool IsParent(IFWL_Widget* pParent);
-
-  void* m_pLayoutItem;
-  CFWL_Widget* m_pAssociate;
-  uint32_t m_nEventKey;
-  IFWL_WidgetDelegate* m_pDelegate;  // Not owned.
-};
-
-#endif  // XFA_FWL_CORE_IFWL_WIDGET_H_