Split fpdfsdk/fsdk_annothandler.h into individual classes.

fpdfsdk/cpdfsdk_bfannothandler.cpp

+// Copyright 2016 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/include/cpdfsdk_bfannothandler.h"
+
+#include <memory>
+#include <vector>
+
+#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+#include "core/fpdfdoc/include/cpdf_interform.h"
+#include "fpdfsdk/formfiller/cffl_formfiller.h"
+#include "fpdfsdk/include/cpdfsdk_annot.h"
+#include "fpdfsdk/include/fsdk_mgr.h"
+
+#ifdef PDF_ENABLE_XFA
+#include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
+#endif  // PDF_ENABLE_XFA
+
+CPDFSDK_BFAnnotHandler::CPDFSDK_BFAnnotHandler(CPDFDoc_Environment* pApp)
+    : m_pApp(pApp), m_pFormFiller(nullptr) {}
+
+CPDFSDK_BFAnnotHandler::~CPDFSDK_BFAnnotHandler() {}
+
+CFX_ByteString CPDFSDK_BFAnnotHandler::GetType() {
+  return CFX_ByteString("Widget");
+}
+
+CFX_ByteString CPDFSDK_BFAnnotHandler::GetName() {
+  return CFX_ByteString("WidgetHandler");
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot->GetType() == "Widget");
+  if (pAnnot->GetSubType() == BFFT_SIGNATURE)
+    return FALSE;
+
+  CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot);
+  if (!pWidget->IsVisible())
+    return FALSE;
+
+  int nFieldFlags = pWidget->GetFieldFlags();
+  if ((nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY)
+    return FALSE;
+
+  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);
+}
+
+CPDFSDK_Annot* CPDFSDK_BFAnnotHandler::NewAnnot(CPDF_Annot* pAnnot,
+                                                CPDFSDK_PageView* pPage) {
+  CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
+  CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl(
+      pInterForm->GetInterForm(), pAnnot->GetAnnotDict());
+  if (!pCtrl)
+    return nullptr;
+
+  CPDFSDK_Widget* pWidget = new CPDFSDK_Widget(pAnnot, pPage, pInterForm);
+  pInterForm->AddMap(pCtrl, pWidget);
+  CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
+  if (pPDFInterForm && pPDFInterForm->NeedConstructAP())
+    pWidget->ResetAppearance(nullptr, FALSE);
+
+  return pWidget;
+}
+
+#ifdef PDF_ENABLE_XFA
+CPDFSDK_Annot* CPDFSDK_BFAnnotHandler::NewAnnot(CXFA_FFWidget* hWidget,
+                                                CPDFSDK_PageView* pPage) {
+  return nullptr;
+}
+#endif  // PDF_ENABLE_XFA
+
+void CPDFSDK_BFAnnotHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot);
+
+  if (m_pFormFiller)
+    m_pFormFiller->OnDelete(pAnnot);
+
+  std::unique_ptr<CPDFSDK_Widget> pWidget(static_cast<CPDFSDK_Widget*>(pAnnot));
+  CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
+  CPDF_FormControl* pControl = pWidget->GetFormControl();
+  pInterForm->RemoveMap(pControl);
+}
+
+void CPDFSDK_BFAnnotHandler::DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_BFAnnotHandler::OnDraw(CPDFSDK_PageView* pPageView,
+                                    CPDFSDK_Annot* pAnnot,
+                                    CFX_RenderDevice* pDevice,
+                                    CFX_Matrix* pUser2Device,
+                                    uint32_t dwFlags) {
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+    static_cast<CPDFSDK_BAAnnot*>(pAnnot)->DrawAppearance(
+        pDevice, pUser2Device, CPDF_Annot::Normal, nullptr);
+  } else {
+    if (m_pFormFiller)
+      m_pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
+  }
+}
+
+void CPDFSDK_BFAnnotHandler::OnDrawSleep(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         CFX_RenderDevice* pDevice,
+                                         CFX_Matrix* pUser2Device,
+                                         const CFX_FloatRect& rcWindow,
+                                         uint32_t dwFlags) {}
+
+void CPDFSDK_BFAnnotHandler::OnDelete(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_BFAnnotHandler::OnRelease(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_BFAnnotHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                          CPDFSDK_Annot* pAnnot,
+                                          uint32_t nFlag) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
+}
+
+void CPDFSDK_BFAnnotHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         uint32_t nFlag) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              uint32_t nFlags,
+                                              const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlags,
+                                            const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlags,
+                                                const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlags,
+                                            const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             short zDelta,
+                                             const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
+                                       point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              uint32_t nFlags,
+                                              const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlags,
+                                            const CFX_FloatPoint& point) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                uint32_t nFlags,
+                                                const CFX_FloatPoint& point) {
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot,
+                                       uint32_t nChar,
+                                       uint32_t nFlags) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnChar(pAnnot, nChar, nFlags);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                          int nKeyCode,
+                                          int nFlag) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlag);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                        int nKeyCode,
+                                        int nFlag) {
+  return FALSE;
+}
+
+void CPDFSDK_BFAnnotHandler::OnCreate(CPDFSDK_Annot* pAnnot) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    m_pFormFiller->OnCreate(pAnnot);
+}
+
+void CPDFSDK_BFAnnotHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
+  if (pAnnot->GetSubType() == BFFT_SIGNATURE)
+    return;
+
+  CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot);
+  if (!pWidget->IsAppearanceValid())
+    pWidget->ResetAppearance(nullptr, FALSE);
+
+  int nFieldType = pWidget->GetFieldType();
+  if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX) {
+    FX_BOOL bFormated = FALSE;
+    CFX_WideString sValue = pWidget->OnFormat(bFormated);
+    if (bFormated && nFieldType == FIELDTYPE_COMBOBOX)
+      pWidget->ResetAppearance(sValue.c_str(), FALSE);
+  }
+
+#ifdef PDF_ENABLE_XFA
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (pDoc->GetDocType() == DOCTYPE_STATIC_XFA) {
+    if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty())
+      pWidget->ResetAppearance(FALSE);
+  }
+#endif  // PDF_ENABLE_XFA
+  if (m_pFormFiller)
+    m_pFormFiller->OnLoad(pAnnot);
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlag) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnSetFocus(pAnnot, nFlag);
+
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlag) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return m_pFormFiller->OnKillFocus(pAnnot, nFlag);
+
+  return TRUE;
+}
+
+#ifdef PDF_ENABLE_XFA
+FX_BOOL CPDFSDK_BFAnnotHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                                  CPDFSDK_Annot* pNewAnnot) {
+  return TRUE;
+}
+#endif  // PDF_ENABLE_XFA
+
+CFX_FloatRect CPDFSDK_BFAnnotHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                                  CPDFSDK_Annot* pAnnot) {
+  if (pAnnot->GetSubType() != BFFT_SIGNATURE && m_pFormFiller)
+    return CFX_FloatRect(m_pFormFiller->GetViewBBox(pPageView, pAnnot));
+
+  return CFX_FloatRect(0, 0, 0, 0);
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::HitTest(CPDFSDK_PageView* pPageView,
+                                        CPDFSDK_Annot* pAnnot,
+                                        const CFX_FloatPoint& point) {
+  ASSERT(pPageView);
+  ASSERT(pAnnot);
+
+  CFX_FloatRect rect = GetViewBBox(pPageView, pAnnot);
+  return rect.Contains(point.x, point.y);
+}