Merge IFWL and CFWL classes.

xfa/fwl/core/cfwl_widget.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_WIDGET_H_
 #define XFA_FWL_CORE_CFWL_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/ifwl_widget.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"
 
-class CFWL_Event;
-class CFWL_Message;
+enum class FWL_Type {
+  Unknown = 0,
+
+  Barcode,
+  Caret,
+  CheckBox,
+  ComboBox,
+  DateTimePicker,
+  Edit,
+  Form,
+  FormProxy,
+  ListBox,
+  MonthCalendar,
+  PictureBox,
+  PushButton,
+  ScrollBar,
+  SpinButton,
+  ToolTip
+};
+
+class CFWL_App;
+class CFWL_AppImp;
+class CFWL_MsgKey;
 class CFWL_Widget;
-class CFWL_WidgetDelegate;
 class CFWL_WidgetMgr;
+class CFWL_WidgetProperties;
+class IFWL_ThemeProvider;
 
-class CFWL_Widget {
+class CFWL_Widget : public IFWL_WidgetDelegate {
  public:
-  explicit CFWL_Widget(const CFWL_App*);
-  virtual ~CFWL_Widget();
+  ~CFWL_Widget() override;
 
-  IFWL_Widget* GetWidget() { return m_pIface.get(); }
-  IFWL_Widget* GetWidget() const { return m_pIface.get(); }
+  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);
 
-  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false);
+  // 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(CFWL_Widget* pParent);
+
+  CFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); }
+  CFWL_Widget* GetOuter() const { return m_pOuter; }
+
+  uint32_t GetStyles() const;
   void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved);
-  uint32_t GetStylesEx();
-  void ModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved);
+  uint32_t GetStylesEx() const;
+  uint32_t GetStates() const;
 
-  uint32_t GetStates();
-  void SetStates(uint32_t dwStates, bool bSet = true);
-  void SetLayoutItem(void* pItem);
+  void LockUpdate() { m_iLock++; }
+  void UnlockUpdate() {
+    if (IsLocked())
+      m_iLock--;
+  }
 
-  void Update();
-  void LockUpdate();
-  void UnlockUpdate();
+  void TransformTo(CFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
+  void GetMatrix(CFX_Matrix& matrix, bool bGlobal = false);
+  IFWL_ThemeProvider* GetThemeProvider() const;
 
-  FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
-  void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix = nullptr);
+  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;
+  }
 
-  IFWL_WidgetDelegate* GetDelegate() const;
-  void SetDelegate(IFWL_WidgetDelegate*);
+  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 SetFocus(bool bFocus);
+  void Repaint(const CFX_RectF* pRect = nullptr);
 
  protected:
-  void Initialize();
+  CFWL_Widget(const CFWL_App* app,
+              std::unique_ptr<CFWL_WidgetProperties> properties,
+              CFWL_Widget* pOuter);
 
-  const CFWL_App* m_pApp;
-  std::unique_ptr<IFWL_Widget> m_pIface;
+  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(CFWL_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;
+  CFWL_Widget* m_pOuter;
+  int32_t m_iLock;
+
+ private:
+  CFWL_Widget* GetParent() { return m_pWidgetMgr->GetParentWidget(this); }
+  CFX_SizeF GetOffsetFromParent(CFWL_Widget* pParent);
+
+  bool IsVisible() const;
+  bool IsOverLapper() const;
+  bool IsPopup() const;
+  bool IsChild() const;
+  bool IsOffscreen() const;
+  CFWL_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(CFWL_Widget* pParent);
+
+  void* m_pLayoutItem;
+  uint32_t m_nEventKey;
+  IFWL_WidgetDelegate* m_pDelegate;  // Not owned.
 };
 
 #endif  // XFA_FWL_CORE_CFWL_WIDGET_H_