Rename CPDFSDK_BFAnnotHandler and CPDFSDK_XFAAnnotHandler.

CPDFSDK_BFAnnotHandler handles CPDFSDK_Widget, so rename it to
CPDFSDK_WidgetHandler. Similarly, CPDFSDK_XFAAnnotHandler handles
CPDFSDK_XFAWidget, so rename it to CPDFSDK_XFAWidgetHandler.

Review-Url: https://codereview.chromium.org/2298443002

1 files changed, 311 insertions, 0 deletions

diff --git a/fpdfsdk/cpdfsdk_widgethandler.cpp b/fpdfsdk/cpdfsdk_widgethandler.cpp
new file mode 100644
index 0000000000..0fb64dfaec
--- /dev/null
+++ b/fpdfsdk/cpdfsdk_widgethandler.cpp
@@ -0,0 +1,311 @@
+// 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_widgethandler.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/cpdfsdk_interform.h"
+#include "fpdfsdk/include/cpdfsdk_widget.h"
+#include "fpdfsdk/include/fsdk_mgr.h"
+
+#ifdef PDF_ENABLE_XFA
+#include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
+#endif  // PDF_ENABLE_XFA
+
+CPDFSDK_WidgetHandler::CPDFSDK_WidgetHandler(CPDFDoc_Environment* pApp)
+    : m_pApp(pApp), m_pFormFiller(nullptr) {}
+
+CPDFSDK_WidgetHandler::~CPDFSDK_WidgetHandler() {}
+
+CFX_ByteString CPDFSDK_WidgetHandler::GetType() {
+  return CFX_ByteString("Widget");
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot->GetAnnotSubtype() == "Widget");
+  if (pAnnot->IsSignatureWidget())
+    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_WidgetHandler::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_WidgetHandler::NewAnnot(CXFA_FFWidget* hWidget,
+                                               CPDFSDK_PageView* pPage) {
+  return nullptr;
+}
+#endif  // PDF_ENABLE_XFA
+
+void CPDFSDK_WidgetHandler::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_WidgetHandler::DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
+                                   CPDFSDK_Annot* pAnnot,
+                                   CFX_RenderDevice* pDevice,
+                                   CFX_Matrix* pUser2Device,
+                                   uint32_t dwFlags) {
+  if (pAnnot->IsSignatureWidget()) {
+    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_WidgetHandler::OnDrawSleep(CPDFSDK_PageView* pPageView,
+                                        CPDFSDK_Annot* pAnnot,
+                                        CFX_RenderDevice* pDevice,
+                                        CFX_Matrix* pUser2Device,
+                                        const CFX_FloatRect& rcWindow,
+                                        uint32_t dwFlags) {}
+
+void CPDFSDK_WidgetHandler::OnDelete(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_WidgetHandler::OnRelease(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         uint32_t nFlag) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
+}
+
+void CPDFSDK_WidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                        CPDFSDK_Annot* pAnnot,
+                                        uint32_t nFlag) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                           CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlags,
+                                           const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               uint32_t nFlags,
+                                               const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                           CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlags,
+                                           const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlags,
+                                            short zDelta,
+                                            const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
+                                       point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                           CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlags,
+                                           const CFX_FloatPoint& point) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               uint32_t nFlags,
+                                               const CFX_FloatPoint& point) {
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnChar(CPDFSDK_Annot* pAnnot,
+                                      uint32_t nChar,
+                                      uint32_t nFlags) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnChar(pAnnot, nChar, nFlags);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                         int nKeyCode,
+                                         int nFlag) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlag);
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                       int nKeyCode,
+                                       int nFlag) {
+  return FALSE;
+}
+
+void CPDFSDK_WidgetHandler::OnCreate(CPDFSDK_Annot* pAnnot) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    m_pFormFiller->OnCreate(pAnnot);
+}
+
+void CPDFSDK_WidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
+  if (pAnnot->IsSignatureWidget())
+    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_WidgetHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                          uint32_t nFlag) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnSetFocus(pAnnot, nFlag);
+
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlag) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return m_pFormFiller->OnKillFocus(pAnnot, nFlag);
+
+  return TRUE;
+}
+
+#ifdef PDF_ENABLE_XFA
+FX_BOOL CPDFSDK_WidgetHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                                 CPDFSDK_Annot* pNewAnnot) {
+  return TRUE;
+}
+#endif  // PDF_ENABLE_XFA
+
+CFX_FloatRect CPDFSDK_WidgetHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot) {
+  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
+    return CFX_FloatRect(m_pFormFiller->GetViewBBox(pPageView, pAnnot));
+
+  return CFX_FloatRect(0, 0, 0, 0);
+}
+
+FX_BOOL CPDFSDK_WidgetHandler::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);
+}