Remove unused FWL Panel code.

This code was used to subclass Form only, the one method in Panel is overridden
in Form.

Review URL: https://codereview.chromium.org/1899743002

14 files changed, 21 insertions, 113 deletions

diff --git a/BUILD.gn b/BUILD.gn
index a286d12c11..eede1bbd56 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1043,8 +1043,6 @@ if (pdf_enable_xfa) {
       "xfa/fwl/core/fwl_formimp.h",
       "xfa/fwl/core/fwl_noteimp.cpp",
       "xfa/fwl/core/fwl_noteimp.h",
-      "xfa/fwl/core/fwl_panelimp.cpp",
-      "xfa/fwl/core/fwl_panelimp.h",
       "xfa/fwl/core/fwl_sdadapterimp.cpp",
       "xfa/fwl/core/fwl_sdadapterimp.h",
       "xfa/fwl/core/fwl_targetimp.cpp",
@@ -1065,7 +1063,6 @@ if (pdf_enable_xfa) {
       "xfa/fwl/core/ifwl_form.h",
       "xfa/fwl/core/ifwl_notedriver.h",
       "xfa/fwl/core/ifwl_noteloop.h",
-      "xfa/fwl/core/ifwl_panel.h",
       "xfa/fwl/core/ifwl_target.h",
       "xfa/fwl/core/ifwl_themeprovider.h",
       "xfa/fwl/core/ifwl_thread.h",
diff --git a/xfa.gyp b/xfa.gyp
index e2cedd08ed..6fdbf48d93 100644
--- a/xfa.gyp
+++ b/xfa.gyp
@@ -188,8 +188,6 @@
         "xfa/fwl/core/fwl_formimp.h",
         "xfa/fwl/core/fwl_noteimp.cpp",
         "xfa/fwl/core/fwl_noteimp.h",
-        "xfa/fwl/core/fwl_panelimp.cpp",
-        "xfa/fwl/core/fwl_panelimp.h",
         "xfa/fwl/core/fwl_sdadapterimp.cpp",
         "xfa/fwl/core/fwl_sdadapterimp.h",
         "xfa/fwl/core/fwl_targetimp.cpp",
@@ -210,7 +208,6 @@
         "xfa/fwl/core/ifwl_form.h",
         "xfa/fwl/core/ifwl_notedriver.h",
         "xfa/fwl/core/ifwl_noteloop.h",
-        "xfa/fwl/core/ifwl_panel.h",
         "xfa/fwl/core/ifwl_target.h",
         "xfa/fwl/core/ifwl_themeprovider.h",
         "xfa/fwl/core/ifwl_thread.h",
diff --git a/xfa/fwl/basewidget/fwl_comboboximp.cpp b/xfa/fwl/basewidget/fwl_comboboximp.cpp
index f066436622..b7d85d3174 100644
--- a/xfa/fwl/basewidget/fwl_comboboximp.cpp
+++ b/xfa/fwl/basewidget/fwl_comboboximp.cpp
@@ -18,7 +18,6 @@
 #include "xfa/fwl/core/fwl_appimp.h"
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_threadimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
diff --git a/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp b/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
index 978fb619e2..d436c47374 100644
--- a/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
+++ b/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
@@ -14,7 +14,6 @@
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 #include "xfa/fwl/core/fwl_widgetmgrimp.h"
diff --git a/xfa/fwl/basewidget/fwl_formproxyimp.cpp b/xfa/fwl/basewidget/fwl_formproxyimp.cpp
index 27a608795b..b86f287cee 100644
--- a/xfa/fwl/basewidget/fwl_formproxyimp.cpp
+++ b/xfa/fwl/basewidget/fwl_formproxyimp.cpp
@@ -8,7 +8,6 @@
 
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 
diff --git a/xfa/fwl/basewidget/fwl_tooltipctrlimp.cpp b/xfa/fwl/basewidget/fwl_tooltipctrlimp.cpp
index 97ead0e44c..3f5fccd0e9 100644
--- a/xfa/fwl/basewidget/fwl_tooltipctrlimp.cpp
+++ b/xfa/fwl/basewidget/fwl_tooltipctrlimp.cpp
@@ -13,7 +13,6 @@
 #include "xfa/fwl/core/cfwl_themetext.h"
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
diff --git a/xfa/fwl/core/fwl_formimp.cpp b/xfa/fwl/core/fwl_formimp.cpp
index 3ed6eef95b..4e67670ad2 100644
--- a/xfa/fwl/core/fwl_formimp.cpp
+++ b/xfa/fwl/core/fwl_formimp.cpp
@@ -14,7 +14,6 @@
 #include "xfa/fwl/core/cfwl_themetext.h"
 #include "xfa/fwl/core/fwl_appimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_threadimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
@@ -60,13 +59,13 @@ FWL_ERR IFWL_Form::SetBorderRegion(CFX_Path* pPath) {
 
 CFWL_FormImp::CFWL_FormImp(const CFWL_WidgetImpProperties& properties,
                            IFWL_Widget* pOuter)
-    : CFWL_PanelImp(properties, pOuter),
-      m_pCloseBox(NULL),
-      m_pMinBox(NULL),
-      m_pMaxBox(NULL),
-      m_pCaptionBox(NULL),
-      m_pNoteLoop(NULL),
-      m_pSubFocus(NULL),
+    : CFWL_WidgetImp(properties, pOuter),
+      m_pCloseBox(nullptr),
+      m_pMinBox(nullptr),
+      m_pMaxBox(nullptr),
+      m_pCaptionBox(nullptr),
+      m_pNoteLoop(nullptr),
+      m_pSubFocus(nullptr),
       m_fCXBorder(0),
       m_fCYBorder(0),
       m_iCaptureBtn(-1),
@@ -78,8 +77,8 @@ CFWL_FormImp::CFWL_FormImp(const CFWL_WidgetImpProperties& properties,
       m_bCustomizeLayout(FALSE),
       m_eFormSize(FWL_FORMSIZE_Manual),
       m_bDoModalFlag(FALSE),
-      m_pBigIcon(NULL),
-      m_pSmallIcon(NULL),
+      m_pBigIcon(nullptr),
+      m_pSmallIcon(nullptr),
       m_bMouseIn(FALSE) {
   m_rtRelative.Reset();
   m_rtCaption.Reset();
@@ -87,23 +86,27 @@ CFWL_FormImp::CFWL_FormImp(const CFWL_WidgetImpProperties& properties,
   m_rtCaptionText.Reset();
   m_rtIcon.Reset();
 }
+
 CFWL_FormImp::~CFWL_FormImp() {
   RemoveSysButtons();
   delete m_pNoteLoop;
 }
+
 FWL_ERR CFWL_FormImp::GetClassName(CFX_WideString& wsClass) const {
   wsClass = FWL_CLASS_Form;
   return FWL_ERR_Succeeded;
 }
+
 uint32_t CFWL_FormImp::GetClassID() const {
   return FWL_CLASSHASH_Form;
 }
+
 FX_BOOL CFWL_FormImp::IsInstance(const CFX_WideStringC& wsClass) const {
-  if (wsClass == CFX_WideStringC(FWL_CLASS_Form)) {
+  if (wsClass == CFX_WideStringC(FWL_CLASS_Form))
     return TRUE;
-  }
-  return CFWL_PanelImp::IsInstance(wsClass);
+  return CFWL_WidgetImp::IsInstance(wsClass);
 }
+
 FWL_ERR CFWL_FormImp::Initialize() {
   if (CFWL_WidgetImp::Initialize() != FWL_ERR_Succeeded)
     return FWL_ERR_Indefinite;
diff --git a/xfa/fwl/core/fwl_formimp.h b/xfa/fwl/core/fwl_formimp.h
index b56a51b2da..4e419f8ffc 100644
--- a/xfa/fwl/core/fwl_formimp.h
+++ b/xfa/fwl/core/fwl_formimp.h
@@ -7,7 +7,6 @@
 #ifndef XFA_FWL_CORE_FWL_FORMIMP_H_
 #define XFA_FWL_CORE_FWL_FORMIMP_H_
 
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 #include "xfa/fwl/core/ifwl_form.h"
 
@@ -32,9 +31,8 @@ class CFWL_SysBtn {
     m_dwState = 0;
   }
 
-  FX_BOOL IsHover() { return m_dwState & FWL_SYSBUTTONSTATE_Hover; }
-  FX_BOOL IsPressed() { return m_dwState & FWL_SYSBUTTONSTATE_Pressed; }
   FX_BOOL IsDisabled() { return m_dwState & FWL_SYSBUTTONSTATE_Disabled; }
+
   void SetNormal() { m_dwState &= 0xFFF0; }
   void SetPressed() {
     SetNormal();
@@ -66,7 +64,7 @@ typedef struct RestoreResizeInfo {
   CFX_SizeF m_szStart;
 } RestoreInfo;
 
-class CFWL_FormImp : public CFWL_PanelImp {
+class CFWL_FormImp : public CFWL_WidgetImp {
  public:
   CFWL_FormImp(const CFWL_WidgetImpProperties& properties, IFWL_Widget* pOuter);
   virtual ~CFWL_FormImp();
@@ -165,6 +163,7 @@ class CFWL_FormImp : public CFWL_PanelImp {
   FX_BOOL m_bMouseIn;
   friend class CFWL_FormImpDelegate;
 };
+
 class CFWL_FormImpDelegate : public CFWL_WidgetImpDelegate {
  public:
   CFWL_FormImpDelegate(CFWL_FormImp* pOwner);
diff --git a/xfa/fwl/core/fwl_noteimp.cpp b/xfa/fwl/core/fwl_noteimp.cpp
index 7de0465a1b..355531b407 100644
--- a/xfa/fwl/core/fwl_noteimp.cpp
+++ b/xfa/fwl/core/fwl_noteimp.cpp
@@ -12,7 +12,6 @@
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/fwl_appimp.h"
 #include "xfa/fwl/core/fwl_formimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_threadimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
diff --git a/xfa/fwl/core/fwl_panelimp.cpp b/xfa/fwl/core/fwl_panelimp.cpp
deleted file mode 100644
index 29ff60634f..0000000000
--- a/xfa/fwl/core/fwl_panelimp.cpp
+++ /dev/null
@@ -1,34 +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
-
-#include "xfa/fwl/core/fwl_panelimp.h"
-
-#include "xfa/fwl/core/cfwl_widgetimpproperties.h"
-#include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_targetimp.h"
-#include "xfa/fwl/core/fwl_widgetimp.h"
-#include "xfa/fwl/core/fwl_widgetmgrimp.h"
-#include "xfa/fwl/core/ifwl_panel.h"
-
-IFWL_Panel::IFWL_Panel() {}
-
-CFWL_PanelImp::CFWL_PanelImp(const CFWL_WidgetImpProperties& properties,
-                             IFWL_Widget* pOuter)
-    : CFWL_WidgetImp(properties, pOuter) {}
-CFWL_PanelImp::~CFWL_PanelImp() {}
-FWL_ERR CFWL_PanelImp::GetClassName(CFX_WideString& wsClass) const {
-  wsClass = FWL_CLASS_Panel;
-  return FWL_ERR_Succeeded;
-}
-uint32_t CFWL_PanelImp::GetClassID() const {
-  return FWL_CLASSHASH_Panel;
-}
-FWL_ERR CFWL_PanelImp::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
-  if (!bAutoSize)
-    rect = m_pProperties->m_rtWidget;
-
-  return FWL_ERR_Succeeded;
-}
diff --git a/xfa/fwl/core/fwl_panelimp.h b/xfa/fwl/core/fwl_panelimp.h
deleted file mode 100644
index 34e236da1a..0000000000
--- a/xfa/fwl/core/fwl_panelimp.h
+++ /dev/null
@@ -1,27 +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_FWL_PANELIMP_H_
-#define XFA_FWL_CORE_FWL_PANELIMP_H_
-
-#include "xfa/fwl/core/fwl_widgetimp.h"
-
-class CFWL_WidgetImpProperties;
-class IFWL_Widget;
-class IFWL_Content;
-
-class CFWL_PanelImp : public CFWL_WidgetImp {
- public:
-  CFWL_PanelImp(const CFWL_WidgetImpProperties& properties,
-                IFWL_Widget* pOuter);
-  virtual ~CFWL_PanelImp();
-
-  virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const;
-  virtual uint32_t GetClassID() const;
-  virtual FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
-};
-
-#endif  // XFA_FWL_CORE_FWL_PANELIMP_H_
diff --git a/xfa/fwl/core/ifwl_form.h b/xfa/fwl/core/ifwl_form.h
index 0022759436..95cae64fa2 100644
--- a/xfa/fwl/core/ifwl_form.h
+++ b/xfa/fwl/core/ifwl_form.h
@@ -7,8 +7,8 @@
 #ifndef XFA_FWL_CORE_IFWL_FORM_H_
 #define XFA_FWL_CORE_IFWL_FORM_H_
 
-#include "xfa/fwl/core/ifwl_panel.h"
 #include "xfa/fwl/core/ifwl_dataprovider.h"
+#include "xfa/fwl/core/ifwl_widget.h"
 #include "core/fxcrt/include/fx_system.h"
 #include "xfa/fwl/core/cfwl_widgetimpproperties.h"
 
@@ -66,7 +66,7 @@ class IFWL_FormDP : public IFWL_DataProvider {
   virtual CFX_DIBitmap* GetIcon(IFWL_Widget* pWidget, FX_BOOL bBig) = 0;
 };
 
-class IFWL_Form : public IFWL_Panel {
+class IFWL_Form : public IFWL_Widget {
  public:
   static IFWL_Form* CreateFormProxy(CFWL_WidgetImpProperties& properties,
                                     CFX_WideString* classname,
diff --git a/xfa/fwl/core/ifwl_panel.h b/xfa/fwl/core/ifwl_panel.h
deleted file mode 100644
index 2261703b94..0000000000
--- a/xfa/fwl/core/ifwl_panel.h
+++ /dev/null
@@ -1,21 +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_PANEL_H_
-#define XFA_FWL_CORE_IFWL_PANEL_H_
-
-#include "xfa/fwl/core/fwl_widgetimp.h"
-#include "xfa/fwl/core/ifwl_widget.h"
-
-#define FWL_CLASS_Panel L"FWL_Panel"
-#define FWL_CLASSHASH_Panel 881567292
-
-class IFWL_Panel : public IFWL_Widget {
- protected:
-  IFWL_Panel();
-};
-
-#endif  // XFA_FWL_CORE_IFWL_PANEL_H_
diff --git a/xfa/fwl/lightwidget/cfwl_tooltip.cpp b/xfa/fwl/lightwidget/cfwl_tooltip.cpp
index abdf48997c..2c16cfdc54 100644
--- a/xfa/fwl/lightwidget/cfwl_tooltip.cpp
+++ b/xfa/fwl/lightwidget/cfwl_tooltip.cpp
@@ -10,7 +10,6 @@
 
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_threadimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"