Split fpdfsdk/fsdk_annothandler.h into individual classes.

fpdfsdk/cpdfsdk_xfaannothandler.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_xfaannothandler.h"
+
+#ifdef PDF_ENABLE_XFA
+
+#include "core/fpdfdoc/include/cpdf_interform.h"
+#include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
+#include "fpdfsdk/include/cpdfsdk_annot.h"
+#include "fpdfsdk/include/fsdk_mgr.h"
+#include "xfa/fxfa/include/fxfa_basic.h"
+#include "xfa/fxfa/include/xfa_ffdocview.h"
+#include "xfa/fxfa/include/xfa_ffpageview.h"
+#include "xfa/fxfa/include/xfa_ffwidget.h"
+#include "xfa/fxfa/include/xfa_ffwidgethandler.h"
+#include "xfa/fxgraphics/include/cfx_graphics.h"
+#include "xfa/fwl/core/include/fwl_widgethit.h"
+
+CPDFSDK_XFAAnnotHandler::CPDFSDK_XFAAnnotHandler(CPDFDoc_Environment* pApp)
+    : m_pApp(pApp) {}
+
+CPDFSDK_XFAAnnotHandler::~CPDFSDK_XFAAnnotHandler() {}
+
+CFX_ByteString CPDFSDK_XFAAnnotHandler::GetType() {
+  return FSDK_XFAWIDGET_TYPENAME;
+}
+
+CFX_ByteString CPDFSDK_XFAAnnotHandler::GetName() {
+  return "XFAWidgetHandler";
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
+  return !!pAnnot->GetXFAWidget();
+}
+
+CPDFSDK_Annot* CPDFSDK_XFAAnnotHandler::NewAnnot(CPDF_Annot* pAnnot,
+                                                 CPDFSDK_PageView* pPage) {
+  return nullptr;
+}
+
+CPDFSDK_Annot* CPDFSDK_XFAAnnotHandler::NewAnnot(CXFA_FFWidget* pAnnot,
+                                                 CPDFSDK_PageView* pPage) {
+  CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
+  CPDFSDK_XFAWidget* pWidget = new CPDFSDK_XFAWidget(pAnnot, pPage, pInterForm);
+  pInterForm->AddXFAMap(pAnnot, pWidget);
+  return pWidget;
+}
+
+void CPDFSDK_XFAAnnotHandler::OnDraw(CPDFSDK_PageView* pPageView,
+                                     CPDFSDK_Annot* pAnnot,
+                                     CFX_RenderDevice* pDevice,
+                                     CFX_Matrix* pUser2Device,
+                                     uint32_t dwFlags) {
+  ASSERT(pPageView);
+  ASSERT(pAnnot);
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+
+  CFX_Graphics gs;
+  gs.Create(pDevice);
+
+  CFX_Matrix mt;
+  mt = *pUser2Device;
+
+  FX_BOOL bIsHighlight = FALSE;
+  if (pSDKDoc->GetFocusAnnot() != pAnnot)
+    bIsHighlight = TRUE;
+
+  pWidgetHandler->RenderWidget(pAnnot->GetXFAWidget(), &gs, &mt, bIsHighlight);
+
+  // to do highlight and shadow
+}
+
+void CPDFSDK_XFAAnnotHandler::OnDrawSleep(CPDFSDK_PageView* pPageView,
+                                          CPDFSDK_Annot* pAnnot,
+                                          CFX_RenderDevice* pDevice,
+                                          CFX_Matrix* pUser2Device,
+                                          const CFX_FloatRect& rcWindow,
+                                          uint32_t dwFlags) {}
+
+void CPDFSDK_XFAAnnotHandler::OnCreate(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_XFAAnnotHandler::OnLoad(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_XFAAnnotHandler::OnDelete(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_XFAAnnotHandler::OnRelease(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_XFAAnnotHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
+  CPDFSDK_XFAWidget* pWidget = reinterpret_cast<CPDFSDK_XFAWidget*>(pAnnot);
+  CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
+  pInterForm->RemoveXFAMap(pWidget->GetXFAWidget());
+
+  delete pWidget;
+}
+
+void CPDFSDK_XFAAnnotHandler::DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
+
+CFX_FloatRect CPDFSDK_XFAAnnotHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                                   CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot);
+
+  CFX_RectF rcBBox;
+  XFA_Element eType = pAnnot->GetXFAWidget()->GetDataAcc()->GetUIType();
+  if (eType == XFA_Element::Signature)
+    pAnnot->GetXFAWidget()->GetBBox(rcBBox, XFA_WidgetStatus_Visible, TRUE);
+  else
+    pAnnot->GetXFAWidget()->GetBBox(rcBBox, XFA_WidgetStatus_None);
+
+  CFX_FloatRect rcWidget(rcBBox.left, rcBBox.top, rcBBox.left + rcBBox.width,
+                         rcBBox.top + rcBBox.height);
+  rcWidget.left -= 1.0f;
+  rcWidget.right += 1.0f;
+  rcWidget.bottom -= 1.0f;
+  rcWidget.top += 1.0f;
+
+  return rcWidget;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::HitTest(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  if (!pSDKDoc)
+    return FALSE;
+
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (!pDoc)
+    return FALSE;
+
+  CXFA_FFDocView* pDocView = pDoc->GetXFADocView();
+  if (!pDocView)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
+  if (!pWidgetHandler)
+    return FALSE;
+
+  FWL_WidgetHit dwHitTest =
+      pWidgetHandler->OnHitTest(pAnnot->GetXFAWidget(), point.x, point.y);
+  return dwHitTest != FWL_WidgetHit::Unknown;
+}
+
+void CPDFSDK_XFAAnnotHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                           CPDFSDK_Annot* pAnnot,
+                                           uint32_t nFlag) {
+  if (!pPageView || !pAnnot)
+    return;
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  pWidgetHandler->OnMouseEnter(pAnnot->GetXFAWidget());
+}
+
+void CPDFSDK_XFAAnnotHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                          CPDFSDK_Annot* pAnnot,
+                                          uint32_t nFlag) {
+  if (!pPageView || !pAnnot)
+    return;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  pWidgetHandler->OnMouseExit(pAnnot->GetXFAWidget());
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               uint32_t nFlags,
+                                               const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnLButtonDown(pAnnot->GetXFAWidget(),
+                                       GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnLButtonUp(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 uint32_t nFlags,
+                                                 const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnLButtonDblClk(pAnnot->GetXFAWidget(),
+                                         GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnMouseMove(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              uint32_t nFlags,
+                                              short zDelta,
+                                              const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnMouseWheel(
+      pAnnot->GetXFAWidget(), GetFWLFlags(nFlags), zDelta, point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               uint32_t nFlags,
+                                               const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnRButtonDown(pAnnot->GetXFAWidget(),
+                                       GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlags,
+                                             const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnRButtonUp(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 uint32_t nFlags,
+                                                 const CFX_FloatPoint& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnRButtonDblClk(pAnnot->GetXFAWidget(),
+                                         GetFWLFlags(nFlags), point.x, point.y);
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot,
+                                        uint32_t nChar,
+                                        uint32_t nFlags) {
+  if (!pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnChar(pAnnot->GetXFAWidget(), nChar,
+                                GetFWLFlags(nFlags));
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                           int nKeyCode,
+                                           int nFlag) {
+  if (!pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnKeyDown(pAnnot->GetXFAWidget(), nKeyCode,
+                                   GetFWLFlags(nFlag));
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                         int nKeyCode,
+                                         int nFlag) {
+  if (!pAnnot)
+    return FALSE;
+
+  CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  return pWidgetHandler->OnKeyUp(pAnnot->GetXFAWidget(), nKeyCode,
+                                 GetFWLFlags(nFlag));
+}
+
+void CPDFSDK_XFAAnnotHandler::OnDeSelected(CPDFSDK_Annot* pAnnot) {}
+
+void CPDFSDK_XFAAnnotHandler::OnSelected(CPDFSDK_Annot* pAnnot) {}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                            uint32_t nFlag) {
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                             uint32_t nFlag) {
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                                   CPDFSDK_Annot* pNewAnnot) {
+  CXFA_FFWidgetHandler* pWidgetHandler = nullptr;
+
+  if (pOldAnnot)
+    pWidgetHandler = GetXFAWidgetHandler(pOldAnnot);
+  else if (pNewAnnot)
+    pWidgetHandler = GetXFAWidgetHandler(pNewAnnot);
+
+  if (pWidgetHandler) {
+    FX_BOOL bRet = TRUE;
+    CXFA_FFWidget* hWidget = pNewAnnot ? pNewAnnot->GetXFAWidget() : nullptr;
+    if (hWidget) {
+      CXFA_FFPageView* pXFAPageView = hWidget->GetPageView();
+      if (pXFAPageView) {
+        bRet = pXFAPageView->GetDocView()->SetFocus(hWidget);
+        if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget)
+          bRet = TRUE;
+      }
+    }
+    return bRet;
+  }
+
+  return TRUE;
+}
+
+CXFA_FFWidgetHandler* CPDFSDK_XFAAnnotHandler::GetXFAWidgetHandler(
+    CPDFSDK_Annot* pAnnot) {
+  if (!pAnnot)
+    return nullptr;
+
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  if (!pPageView)
+    return nullptr;
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  if (!pSDKDoc)
+    return nullptr;
+
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (!pDoc)
+    return nullptr;
+
+  CXFA_FFDocView* pDocView = pDoc->GetXFADocView();
+  if (!pDocView)
+    return nullptr;
+
+  return pDocView->GetWidgetHandler();
+}
+
+const uint32_t FWL_KEYFLAG_Ctrl = (1 << 0);
+const uint32_t FWL_KEYFLAG_Alt = (1 << 1);
+const uint32_t FWL_KEYFLAG_Shift = (1 << 2);
+const uint32_t FWL_KEYFLAG_LButton = (1 << 3);
+const uint32_t FWL_KEYFLAG_RButton = (1 << 4);
+const uint32_t FWL_KEYFLAG_MButton = (1 << 5);
+
+uint32_t CPDFSDK_XFAAnnotHandler::GetFWLFlags(uint32_t dwFlag) {
+  uint32_t dwFWLFlag = 0;
+
+  if (dwFlag & FWL_EVENTFLAG_ControlKey)
+    dwFWLFlag |= FWL_KEYFLAG_Ctrl;
+  if (dwFlag & FWL_EVENTFLAG_LeftButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_LButton;
+  if (dwFlag & FWL_EVENTFLAG_MiddleButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_MButton;
+  if (dwFlag & FWL_EVENTFLAG_RightButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_RButton;
+  if (dwFlag & FWL_EVENTFLAG_ShiftKey)
+    dwFWLFlag |= FWL_KEYFLAG_Shift;
+  if (dwFlag & FWL_EVENTFLAG_AltKey)
+    dwFWLFlag |= FWL_KEYFLAG_Alt;
+
+  return dwFWLFlag;
+}
+
+#endif  // PDF_ENABLE_XFA