Make the I in IFormFiller explicit

Typically the I prefix means Interface, except for CFFL_IFormFiller where it
means Interactive. Rename CFFL_IFormFiller to CFFL_InteractiveFormFiller to
make the meaning explicit.

Review-Url: https://codereview.chromium.org/2357203003

1 files changed, 1013 insertions, 0 deletions

diff --git a/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
new file mode 100644
index 0000000000..3d1a716580
--- /dev/null
+++ b/fpdfsdk/formfiller/cffl_interactiveformfiller.cpp
@@ -0,0 +1,1013 @@
+// 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 "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
+
+#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+#include "core/fxge/include/cfx_graphstatedata.h"
+#include "core/fxge/include/cfx_pathdata.h"
+#include "core/fxge/include/cfx_renderdevice.h"
+#include "fpdfsdk/formfiller/cffl_checkbox.h"
+#include "fpdfsdk/formfiller/cffl_combobox.h"
+#include "fpdfsdk/formfiller/cffl_formfiller.h"
+#include "fpdfsdk/formfiller/cffl_listbox.h"
+#include "fpdfsdk/formfiller/cffl_pushbutton.h"
+#include "fpdfsdk/formfiller/cffl_radiobutton.h"
+#include "fpdfsdk/formfiller/cffl_textfield.h"
+#include "fpdfsdk/include/cpdfsdk_document.h"
+#include "fpdfsdk/include/cpdfsdk_environment.h"
+#include "fpdfsdk/include/cpdfsdk_interform.h"
+#include "fpdfsdk/include/cpdfsdk_pageview.h"
+#include "fpdfsdk/include/cpdfsdk_widget.h"
+#include "fpdfsdk/pdfwindow/PWL_Utils.h"
+
+#define FFL_MAXLISTBOXHEIGHT 140.0f
+
+CFFL_InteractiveFormFiller::CFFL_InteractiveFormFiller(
+    CPDFSDK_Environment* pEnv)
+    : m_pEnv(pEnv), m_bNotifying(FALSE) {}
+
+CFFL_InteractiveFormFiller::~CFFL_InteractiveFormFiller() {}
+
+FX_BOOL CFFL_InteractiveFormFiller::Annot_HitTest(CPDFSDK_PageView* pPageView,
+                                                  CPDFSDK_Annot* pAnnot,
+                                                  CFX_FloatPoint point) {
+  CFX_FloatRect rc = pAnnot->GetRect();
+  return rc.Contains(point.x, point.y);
+}
+
+FX_RECT CFFL_InteractiveFormFiller::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot) {
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE))
+    return pFormFiller->GetViewBBox(pPageView, pAnnot);
+
+  ASSERT(pPageView);
+
+  CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
+  CFX_FloatRect rcWin = CPWL_Utils::InflateRect(pPDFAnnot->GetRect(), 1);
+  return rcWin.GetOuterRect();
+}
+
+void CFFL_InteractiveFormFiller::OnDraw(CPDFSDK_PageView* pPageView,
+                                        CPDFSDK_Annot* pAnnot,
+                                        CFX_RenderDevice* pDevice,
+                                        CFX_Matrix* pUser2Device) {
+  ASSERT(pPageView);
+  CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+
+  if (!IsVisible(pWidget))
+    return;
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    if (pFormFiller->IsValid()) {
+      pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device);
+      pAnnot->GetPDFPage();
+
+      CPDFSDK_Document* pDocument = m_pEnv->GetSDKDocument();
+      if (pDocument->GetFocusAnnot() == pAnnot) {
+        CFX_FloatRect rcFocus = pFormFiller->GetFocusBox(pPageView);
+        if (!rcFocus.IsEmpty()) {
+          CFX_PathData path;
+          path.SetPointCount(5);
+          path.SetPoint(0, rcFocus.left, rcFocus.top, FXPT_MOVETO);
+          path.SetPoint(1, rcFocus.left, rcFocus.bottom, FXPT_LINETO);
+          path.SetPoint(2, rcFocus.right, rcFocus.bottom, FXPT_LINETO);
+          path.SetPoint(3, rcFocus.right, rcFocus.top, FXPT_LINETO);
+          path.SetPoint(4, rcFocus.left, rcFocus.top, FXPT_LINETO);
+
+          CFX_GraphStateData gsd;
+          gsd.SetDashCount(1);
+          gsd.m_DashArray[0] = 1.0f;
+          gsd.m_DashPhase = 0;
+          gsd.m_LineWidth = 1.0f;
+          pDevice->DrawPath(&path, pUser2Device, &gsd, 0,
+                            ArgbEncode(255, 0, 0, 0), FXFILL_ALTERNATE);
+        }
+      }
+      return;
+    }
+  }
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->OnDrawDeactive(pPageView, pAnnot, pDevice, pUser2Device);
+  } else {
+    pWidget->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, nullptr);
+  }
+
+  if (!IsReadOnly(pWidget) && IsFillingAllowed(pWidget))
+    pWidget->DrawShadow(pDevice, pPageView);
+}
+
+void CFFL_InteractiveFormFiller::OnCreate(CPDFSDK_Annot* pAnnot) {
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->OnCreate(pAnnot);
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnLoad(CPDFSDK_Annot* pAnnot) {
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->OnLoad(pAnnot);
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnDelete(CPDFSDK_Annot* pAnnot) {
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->OnDelete(pAnnot);
+  }
+
+  UnRegisterFormFiller(pAnnot);
+}
+
+void CFFL_InteractiveFormFiller::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              uint32_t nFlag) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (!m_bNotifying) {
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    if (pWidget->GetAAction(CPDF_AAction::CursorEnter).GetDict()) {
+      m_bNotifying = TRUE;
+
+      int nValueAge = pWidget->GetValueAge();
+
+      pWidget->ClearAppModified();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+      pWidget->OnAAction(CPDF_AAction::CursorEnter, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (pWidget->IsAppModified()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      pWidget->GetValueAge() == nValueAge);
+        }
+      }
+    }
+  }
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, TRUE)) {
+    pFormFiller->OnMouseEnter(pPageView, pAnnot);
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlag) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (!m_bNotifying) {
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    if (pWidget->GetAAction(CPDF_AAction::CursorExit).GetDict()) {
+      m_bNotifying = TRUE;
+      pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+      pWidget->ClearAppModified();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnAAction(CPDF_AAction::CursorExit, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (pWidget->IsAppModified()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+      }
+    }
+  }
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->OnMouseExit(pPageView, pAnnot);
+  }
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                                  CPDFSDK_Annot* pAnnot,
+                                                  uint32_t nFlags,
+                                                  const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (!m_bNotifying) {
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    if (Annot_HitTest(pPageView, pAnnot, point) &&
+        pWidget->GetAAction(CPDF_AAction::ButtonDown).GetDict()) {
+      m_bNotifying = TRUE;
+      pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+      pWidget->ClearAppModified();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlags);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlags);
+      pWidget->OnAAction(CPDF_AAction::ButtonDown, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pAnnot))
+        return TRUE;
+
+      if (pWidget->IsAppModified()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+      }
+    }
+  }
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlags,
+                                                const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+  CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+  CPDFSDK_Document* pDocument = m_pEnv->GetSDKDocument();
+
+  switch (pWidget->GetFieldType()) {
+    case FIELDTYPE_PUSHBUTTON:
+    case FIELDTYPE_CHECKBOX:
+    case FIELDTYPE_RADIOBUTTON:
+      if (GetViewBBox(pPageView, pAnnot).Contains((int)point.x, (int)point.y))
+        pDocument->SetFocusAnnot(pAnnot);
+      break;
+    default:
+      pDocument->SetFocusAnnot(pAnnot);
+      break;
+  }
+
+  FX_BOOL bRet = FALSE;
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    bRet = pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+
+  if (pDocument->GetFocusAnnot() == pAnnot) {
+    FX_BOOL bExit = FALSE;
+    FX_BOOL bReset = FALSE;
+    OnButtonUp(pWidget, pPageView, bReset, bExit, nFlags);
+    if (bExit)
+      return TRUE;
+#ifdef PDF_ENABLE_XFA
+    OnClick(pWidget, pPageView, bReset, bExit, nFlags);
+    if (bExit)
+      return TRUE;
+#endif  // PDF_ENABLE_XFA
+  }
+  return bRet;
+}
+
+void CFFL_InteractiveFormFiller::OnButtonUp(CPDFSDK_Widget* pWidget,
+                                            CPDFSDK_PageView* pPageView,
+                                            FX_BOOL& bReset,
+                                            FX_BOOL& bExit,
+                                            uint32_t nFlag) {
+  ASSERT(pWidget);
+
+  if (!m_bNotifying) {
+    if (pWidget->GetAAction(CPDF_AAction::ButtonUp).GetDict()) {
+      m_bNotifying = TRUE;
+      int nAge = pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnAAction(CPDF_AAction::ButtonUp, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pWidget)) {
+        bExit = TRUE;
+        return;
+      }
+
+      if (nAge != pWidget->GetAppearanceAge()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+
+        bReset = TRUE;
+      }
+    }
+  }
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnLButtonDblClk(
+    CPDFSDK_PageView* pPageView,
+    CPDFSDK_Annot* pAnnot,
+    uint32_t nFlags,
+    const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlags,
+                                                const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  // change cursor
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, TRUE)) {
+    return pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 uint32_t nFlags,
+                                                 short zDelta,
+                                                 const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                                  CPDFSDK_Annot* pAnnot,
+                                                  uint32_t nFlags,
+                                                  const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlags,
+                                                const CFX_FloatPoint& point) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                              uint32_t nKeyCode,
+                                              uint32_t nFlags) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    return pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlags);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnChar(CPDFSDK_Annot* pAnnot,
+                                           uint32_t nChar,
+                                           uint32_t nFlags) {
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+  if (nChar == FWL_VKEY_Tab)
+    return TRUE;
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE))
+    return pFormFiller->OnChar(pAnnot, nChar, nFlags);
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                               uint32_t nFlag) {
+  if (!pAnnot)
+    return FALSE;
+
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (!m_bNotifying) {
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    if (pWidget->GetAAction(CPDF_AAction::GetFocus).GetDict()) {
+      m_bNotifying = TRUE;
+      pWidget->GetAppearanceAge();
+
+      int nValueAge = pWidget->GetValueAge();
+      pWidget->ClearAppModified();
+
+      CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, TRUE);
+      if (!pFormFiller)
+        return FALSE;
+      pFormFiller->GetActionData(pPageView, CPDF_AAction::GetFocus, fa);
+      pWidget->OnAAction(CPDF_AAction::GetFocus, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (pWidget->IsAppModified()) {
+        if (CFFL_FormFiller* pFiller = GetFormFiller(pWidget, FALSE)) {
+          pFiller->ResetPDFWindow(pPageView,
+                                  nValueAge == pWidget->GetValueAge());
+        }
+      }
+    }
+  }
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, TRUE))
+    pFormFiller->SetFocusForAnnot(pAnnot, nFlag);
+
+  return TRUE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlag) {
+  if (!pAnnot)
+    return FALSE;
+  ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
+
+  if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, FALSE)) {
+    pFormFiller->KillFocusForAnnot(pAnnot, nFlag);
+
+    if (!m_bNotifying) {
+      CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+      if (pWidget->GetAAction(CPDF_AAction::LoseFocus).GetDict()) {
+        m_bNotifying = TRUE;
+        pWidget->ClearAppModified();
+
+        CPDFSDK_PageView* pPageView = pWidget->GetPageView();
+        ASSERT(pPageView);
+
+        PDFSDK_FieldAction fa;
+        fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+        fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+        pFormFiller->GetActionData(pPageView, CPDF_AAction::LoseFocus, fa);
+
+        pWidget->OnAAction(CPDF_AAction::LoseFocus, fa, pPageView);
+        m_bNotifying = FALSE;
+      }
+    }
+  }
+
+  return TRUE;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::IsVisible(CPDFSDK_Widget* pWidget) {
+  return pWidget->IsVisible();
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::IsReadOnly(CPDFSDK_Widget* pWidget) {
+  int nFieldFlags = pWidget->GetFieldFlags();
+  return (nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY;
+}
+
+FX_BOOL CFFL_InteractiveFormFiller::IsFillingAllowed(CPDFSDK_Widget* pWidget) {
+  if (pWidget->GetFieldType() == FIELDTYPE_PUSHBUTTON)
+    return TRUE;
+
+  CPDF_Page* pPage = pWidget->GetPDFPage();
+  CPDF_Document* pDocument = pPage->m_pDocument;
+  uint32_t dwPermissions = pDocument->GetUserPermissions();
+  return (dwPermissions & FPDFPERM_FILL_FORM) ||
+         (dwPermissions & FPDFPERM_ANNOT_FORM) ||
+         (dwPermissions & FPDFPERM_MODIFY);
+}
+
+CFFL_FormFiller* CFFL_InteractiveFormFiller::GetFormFiller(
+    CPDFSDK_Annot* pAnnot,
+    FX_BOOL bRegister) {
+  auto it = m_Maps.find(pAnnot);
+  if (it != m_Maps.end())
+    return it->second.get();
+
+  if (!bRegister)
+    return nullptr;
+
+  CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+  int nFieldType = pWidget->GetFieldType();
+  CFFL_FormFiller* pFormFiller;
+  switch (nFieldType) {
+    case FIELDTYPE_PUSHBUTTON:
+      pFormFiller = new CFFL_PushButton(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_CHECKBOX:
+      pFormFiller = new CFFL_CheckBox(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_RADIOBUTTON:
+      pFormFiller = new CFFL_RadioButton(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_TEXTFIELD:
+      pFormFiller = new CFFL_TextField(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_LISTBOX:
+      pFormFiller = new CFFL_ListBox(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_COMBOBOX:
+      pFormFiller = new CFFL_ComboBox(m_pEnv, pWidget);
+      break;
+    case FIELDTYPE_UNKNOWN:
+    default:
+      pFormFiller = nullptr;
+      break;
+  }
+
+  if (!pFormFiller)
+    return nullptr;
+
+  m_Maps[pAnnot].reset(pFormFiller);
+  return pFormFiller;
+}
+
+void CFFL_InteractiveFormFiller::RemoveFormFiller(CPDFSDK_Annot* pAnnot) {
+  if (pAnnot) {
+    UnRegisterFormFiller(pAnnot);
+  }
+}
+
+void CFFL_InteractiveFormFiller::UnRegisterFormFiller(CPDFSDK_Annot* pAnnot) {
+  auto it = m_Maps.find(pAnnot);
+  if (it == m_Maps.end())
+    return;
+
+  m_Maps.erase(it);
+}
+
+void CFFL_InteractiveFormFiller::QueryWherePopup(void* pPrivateData,
+                                                 FX_FLOAT fPopupMin,
+                                                 FX_FLOAT fPopupMax,
+                                                 int32_t& nRet,
+                                                 FX_FLOAT& fPopupRet) {
+  CFFL_PrivateData* pData = (CFFL_PrivateData*)pPrivateData;
+
+  CFX_FloatRect rcPageView(0, 0, 0, 0);
+  rcPageView.right = pData->pWidget->GetPDFPage()->GetPageWidth();
+  rcPageView.bottom = pData->pWidget->GetPDFPage()->GetPageHeight();
+  rcPageView.Normalize();
+
+  CFX_FloatRect rcAnnot = pData->pWidget->GetRect();
+
+  FX_FLOAT fTop = 0.0f;
+  FX_FLOAT fBottom = 0.0f;
+
+  CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pData->pWidget;
+  switch (pWidget->GetRotate() / 90) {
+    default:
+    case 0:
+      fTop = rcPageView.top - rcAnnot.top;
+      fBottom = rcAnnot.bottom - rcPageView.bottom;
+      break;
+    case 1:
+      fTop = rcAnnot.left - rcPageView.left;
+      fBottom = rcPageView.right - rcAnnot.right;
+      break;
+    case 2:
+      fTop = rcAnnot.bottom - rcPageView.bottom;
+      fBottom = rcPageView.top - rcAnnot.top;
+      break;
+    case 3:
+      fTop = rcPageView.right - rcAnnot.right;
+      fBottom = rcAnnot.left - rcPageView.left;
+      break;
+  }
+
+  FX_FLOAT fFactHeight = 0;
+  FX_BOOL bBottom = TRUE;
+  FX_FLOAT fMaxListBoxHeight = 0;
+  if (fPopupMax > FFL_MAXLISTBOXHEIGHT) {
+    if (fPopupMin > FFL_MAXLISTBOXHEIGHT) {
+      fMaxListBoxHeight = fPopupMin;
+    } else {
+      fMaxListBoxHeight = FFL_MAXLISTBOXHEIGHT;
+    }
+  } else {
+    fMaxListBoxHeight = fPopupMax;
+  }
+
+  if (fBottom > fMaxListBoxHeight) {
+    fFactHeight = fMaxListBoxHeight;
+    bBottom = TRUE;
+  } else {
+    if (fTop > fMaxListBoxHeight) {
+      fFactHeight = fMaxListBoxHeight;
+      bBottom = FALSE;
+    } else {
+      if (fTop > fBottom) {
+        fFactHeight = fTop;
+        bBottom = FALSE;
+      } else {
+        fFactHeight = fBottom;
+        bBottom = TRUE;
+      }
+    }
+  }
+
+  nRet = bBottom ? 0 : 1;
+  fPopupRet = fFactHeight;
+}
+
+void CFFL_InteractiveFormFiller::OnKeyStrokeCommit(CPDFSDK_Widget* pWidget,
+                                                   CPDFSDK_PageView* pPageView,
+                                                   FX_BOOL& bRC,
+                                                   FX_BOOL& bExit,
+                                                   uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
+      m_bNotifying = TRUE;
+      pWidget->ClearAppModified();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+      fa.bWillCommit = TRUE;
+      fa.bKeyDown = TRUE;
+      fa.bRC = TRUE;
+
+      CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE);
+      pFormFiller->GetActionData(pPageView, CPDF_AAction::KeyStroke, fa);
+      pFormFiller->SaveState(pPageView);
+
+      pWidget->OnAAction(CPDF_AAction::KeyStroke, fa, pPageView);
+
+      bRC = fa.bRC;
+      m_bNotifying = FALSE;
+    }
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnValidate(CPDFSDK_Widget* pWidget,
+                                            CPDFSDK_PageView* pPageView,
+                                            FX_BOOL& bRC,
+                                            FX_BOOL& bExit,
+                                            uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->GetAAction(CPDF_AAction::Validate).GetDict()) {
+      m_bNotifying = TRUE;
+      pWidget->ClearAppModified();
+
+      ASSERT(pPageView);
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+      fa.bKeyDown = TRUE;
+      fa.bRC = TRUE;
+
+      CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE);
+      pFormFiller->GetActionData(pPageView, CPDF_AAction::Validate, fa);
+      pFormFiller->SaveState(pPageView);
+
+      pWidget->OnAAction(CPDF_AAction::Validate, fa, pPageView);
+
+      bRC = fa.bRC;
+      m_bNotifying = FALSE;
+    }
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnCalculate(CPDFSDK_Widget* pWidget,
+                                             CPDFSDK_PageView* pPageView,
+                                             FX_BOOL& bExit,
+                                             uint32_t nFlag) {
+  if (!m_bNotifying) {
+    ASSERT(pWidget);
+    CPDFSDK_Document* pDocument = pPageView->GetSDKDocument();
+    CPDFSDK_InterForm* pInterForm = pDocument->GetInterForm();
+    pInterForm->OnCalculate(pWidget->GetFormField());
+    m_bNotifying = FALSE;
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnFormat(CPDFSDK_Widget* pWidget,
+                                          CPDFSDK_PageView* pPageView,
+                                          FX_BOOL& bExit,
+                                          uint32_t nFlag) {
+  if (!m_bNotifying) {
+    ASSERT(pWidget);
+    CPDFSDK_Document* pDocument = pPageView->GetSDKDocument();
+    CPDFSDK_InterForm* pInterForm = pDocument->GetInterForm();
+
+    FX_BOOL bFormatted = FALSE;
+    CFX_WideString sValue =
+        pInterForm->OnFormat(pWidget->GetFormField(), bFormatted);
+
+    if (bExit)
+      return;
+
+    if (bFormatted) {
+      pInterForm->ResetFieldAppearance(pWidget->GetFormField(), &sValue, TRUE);
+      pInterForm->UpdateField(pWidget->GetFormField());
+    }
+
+    m_bNotifying = FALSE;
+  }
+}
+
+#ifdef PDF_ENABLE_XFA
+void CFFL_InteractiveFormFiller::OnClick(CPDFSDK_Widget* pWidget,
+                                         CPDFSDK_PageView* pPageView,
+                                         FX_BOOL& bReset,
+                                         FX_BOOL& bExit,
+                                         uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->HasXFAAAction(PDFSDK_XFA_Click)) {
+      m_bNotifying = TRUE;
+      int nAge = pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnXFAAAction(PDFSDK_XFA_Click, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pWidget)) {
+        bExit = TRUE;
+        return;
+      }
+
+      if (nAge != pWidget->GetAppearanceAge()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+
+        bReset = TRUE;
+      }
+    }
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnFull(CPDFSDK_Widget* pWidget,
+                                        CPDFSDK_PageView* pPageView,
+                                        FX_BOOL& bReset,
+                                        FX_BOOL& bExit,
+                                        uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->HasXFAAAction(PDFSDK_XFA_Full)) {
+      m_bNotifying = TRUE;
+      int nAge = pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnXFAAAction(PDFSDK_XFA_Full, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pWidget)) {
+        bExit = TRUE;
+        return;
+      }
+
+      if (nAge != pWidget->GetAppearanceAge()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+
+        bReset = TRUE;
+      }
+    }
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnPopupPreOpen(void* pPrivateData,
+                                                FX_BOOL& bExit,
+                                                uint32_t nFlag) {
+  CFFL_PrivateData* pData = (CFFL_PrivateData*)pPrivateData;
+  ASSERT(pData);
+  ASSERT(pData->pWidget);
+
+  FX_BOOL bTempReset = FALSE;
+  FX_BOOL bTempExit = FALSE;
+  OnPreOpen(pData->pWidget, pData->pPageView, bTempReset, bTempExit, nFlag);
+
+  if (bTempReset || bTempExit) {
+    bExit = TRUE;
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnPopupPostOpen(void* pPrivateData,
+                                                 FX_BOOL& bExit,
+                                                 uint32_t nFlag) {
+  CFFL_PrivateData* pData = (CFFL_PrivateData*)pPrivateData;
+  ASSERT(pData);
+  ASSERT(pData->pWidget);
+
+  FX_BOOL bTempReset = FALSE;
+  FX_BOOL bTempExit = FALSE;
+  OnPostOpen(pData->pWidget, pData->pPageView, bTempReset, bTempExit, nFlag);
+
+  if (bTempReset || bTempExit) {
+    bExit = TRUE;
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnPreOpen(CPDFSDK_Widget* pWidget,
+                                           CPDFSDK_PageView* pPageView,
+                                           FX_BOOL& bReset,
+                                           FX_BOOL& bExit,
+                                           uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->HasXFAAAction(PDFSDK_XFA_PreOpen)) {
+      m_bNotifying = TRUE;
+      int nAge = pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnXFAAAction(PDFSDK_XFA_PreOpen, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pWidget)) {
+        bExit = TRUE;
+        return;
+      }
+
+      if (nAge != pWidget->GetAppearanceAge()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+
+        bReset = TRUE;
+      }
+    }
+  }
+}
+
+void CFFL_InteractiveFormFiller::OnPostOpen(CPDFSDK_Widget* pWidget,
+                                            CPDFSDK_PageView* pPageView,
+                                            FX_BOOL& bReset,
+                                            FX_BOOL& bExit,
+                                            uint32_t nFlag) {
+  if (!m_bNotifying) {
+    if (pWidget->HasXFAAAction(PDFSDK_XFA_PostOpen)) {
+      m_bNotifying = TRUE;
+      int nAge = pWidget->GetAppearanceAge();
+      int nValueAge = pWidget->GetValueAge();
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+
+      pWidget->OnXFAAAction(PDFSDK_XFA_PostOpen, fa, pPageView);
+      m_bNotifying = FALSE;
+
+      if (!IsValidAnnot(pPageView, pWidget)) {
+        bExit = TRUE;
+        return;
+      }
+
+      if (nAge != pWidget->GetAppearanceAge()) {
+        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
+          pFormFiller->ResetPDFWindow(pPageView,
+                                      nValueAge == pWidget->GetValueAge());
+        }
+
+        bReset = TRUE;
+      }
+    }
+  }
+}
+#endif  // PDF_ENABLE_XFA
+
+FX_BOOL CFFL_InteractiveFormFiller::IsValidAnnot(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot) {
+  if (pPageView)
+    return pPageView->IsValidAnnot(pAnnot->GetPDFAnnot());
+
+  return FALSE;
+}
+
+void CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
+    void* pPrivateData,
+    CFX_WideString& strChange,
+    const CFX_WideString& strChangeEx,
+    int nSelStart,
+    int nSelEnd,
+    FX_BOOL bKeyDown,
+    FX_BOOL& bRC,
+    FX_BOOL& bExit,
+    uint32_t nFlag) {
+  CFFL_PrivateData* pData = (CFFL_PrivateData*)pPrivateData;
+  ASSERT(pData->pWidget);
+
+  CFFL_FormFiller* pFormFiller = GetFormFiller(pData->pWidget, FALSE);
+
+#ifdef PDF_ENABLE_XFA
+  if (pFormFiller->IsFieldFull(pData->pPageView)) {
+    FX_BOOL bFullExit = FALSE;
+    FX_BOOL bFullReset = FALSE;
+    OnFull(pData->pWidget, pData->pPageView, bFullReset, bFullExit, nFlag);
+
+    if (bFullReset || bFullExit) {
+      bExit = TRUE;
+      return;
+    }
+  }
+#endif  // PDF_ENABLE_XFA
+
+  if (!m_bNotifying) {
+    if (pData->pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
+      m_bNotifying = TRUE;
+      int nAge = pData->pWidget->GetAppearanceAge();
+      int nValueAge = pData->pWidget->GetValueAge();
+
+      CPDFSDK_Document* pDocument = pData->pPageView->GetSDKDocument();
+
+      PDFSDK_FieldAction fa;
+      fa.bModifier = m_pEnv->IsCTRLKeyDown(nFlag);
+      fa.bShift = m_pEnv->IsSHIFTKeyDown(nFlag);
+      fa.sChange = strChange;
+      fa.sChangeEx = strChangeEx;
+      fa.bKeyDown = bKeyDown;
+      fa.bWillCommit = FALSE;
+      fa.bRC = TRUE;
+      fa.nSelStart = nSelStart;
+      fa.nSelEnd = nSelEnd;
+
+      pFormFiller->GetActionData(pData->pPageView, CPDF_AAction::KeyStroke, fa);
+      pFormFiller->SaveState(pData->pPageView);
+
+      if (pData->pWidget->OnAAction(CPDF_AAction::KeyStroke, fa,
+                                    pData->pPageView)) {
+        if (!IsValidAnnot(pData->pPageView, pData->pWidget)) {
+          bExit = TRUE;
+          m_bNotifying = FALSE;
+          return;
+        }
+
+        if (nAge != pData->pWidget->GetAppearanceAge()) {
+          CPWL_Wnd* pWnd = pFormFiller->ResetPDFWindow(
+              pData->pPageView, nValueAge == pData->pWidget->GetValueAge());
+          pData = (CFFL_PrivateData*)pWnd->GetAttachedData();
+          bExit = TRUE;
+        }
+
+        if (fa.bRC) {
+          pFormFiller->SetActionData(pData->pPageView, CPDF_AAction::KeyStroke,
+                                     fa);
+          bRC = FALSE;
+        } else {
+          pFormFiller->RestoreState(pData->pPageView);
+          bRC = FALSE;
+        }
+
+        if (pDocument->GetFocusAnnot() != pData->pWidget) {
+          pFormFiller->CommitData(pData->pPageView, nFlag);
+          bExit = TRUE;
+        }
+      } else {
+        if (!IsValidAnnot(pData->pPageView, pData->pWidget)) {
+          bExit = TRUE;
+          m_bNotifying = FALSE;
+          return;
+        }
+      }
+
+      m_bNotifying = FALSE;
+    }
+  }
+}