// 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/cpdfsdk_xfawidgethandler.h" #include "core/fpdfdoc/cpdf_interform.h" #include "fpdfsdk/cpdfsdk_annot.h" #include "fpdfsdk/cpdfsdk_formfillenvironment.h" #include "fpdfsdk/cpdfsdk_interform.h" #include "fpdfsdk/cpdfsdk_pageview.h" #include "fpdfsdk/cpdfsdk_xfawidget.h" #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" #include "xfa/fwl/cfwl_app.h" #include "xfa/fwl/fwl_widgethit.h" #include "xfa/fxfa/cxfa_ffdocview.h" #include "xfa/fxfa/cxfa_ffpageview.h" #include "xfa/fxfa/cxfa_ffwidget.h" #include "xfa/fxfa/cxfa_ffwidgethandler.h" #include "xfa/fxfa/fxfa_basic.h" #include "xfa/fxgraphics/cxfa_graphics.h" CPDFSDK_XFAWidgetHandler::CPDFSDK_XFAWidgetHandler( CPDFSDK_FormFillEnvironment* pFormFillEnv) : m_pFormFillEnv(pFormFillEnv) {} CPDFSDK_XFAWidgetHandler::~CPDFSDK_XFAWidgetHandler() {} bool CPDFSDK_XFAWidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) { return !!pAnnot->GetXFAWidget(); } CPDFSDK_Annot* CPDFSDK_XFAWidgetHandler::NewAnnot(CPDF_Annot* pAnnot, CPDFSDK_PageView* pPage) { return nullptr; } CPDFSDK_Annot* CPDFSDK_XFAWidgetHandler::NewAnnot(CXFA_FFWidget* pAnnot, CPDFSDK_PageView* pPage) { CPDFSDK_InterForm* pInterForm = m_pFormFillEnv->GetInterForm(); CPDFSDK_XFAWidget* pWidget = new CPDFSDK_XFAWidget(pAnnot, pPage, pInterForm); pInterForm->AddXFAMap(pAnnot, pWidget); return pWidget; } void CPDFSDK_XFAWidgetHandler::OnDraw(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot, CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device, bool bDrawAnnots) { ASSERT(pPageView); ASSERT(pAnnot); CXFA_Graphics gs(pDevice); CFX_Matrix mt = *pUser2Device; bool bIsHighlight = false; if (pPageView->GetFormFillEnv()->GetFocusAnnot() != pAnnot) bIsHighlight = true; GetXFAWidgetHandler(pAnnot)->RenderWidget(pAnnot->GetXFAWidget(), &gs, mt, bIsHighlight); // to do highlight and shadow } void CPDFSDK_XFAWidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {} void CPDFSDK_XFAWidgetHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) { CPDFSDK_XFAWidget* pWidget = reinterpret_cast<CPDFSDK_XFAWidget*>(pAnnot); CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm(); pInterForm->RemoveXFAMap(pWidget->GetXFAWidget()); delete pWidget; } CFX_FloatRect CPDFSDK_XFAWidgetHandler::GetViewBBox(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot) { ASSERT(pAnnot); CFX_RectF rcBBox; XFA_Element eType = pAnnot->GetXFAWidget()->GetDataAcc()->GetUIType(); if (eType == XFA_Element::Signature) rcBBox = pAnnot->GetXFAWidget()->GetBBox(XFA_WidgetStatus_Visible, true); else rcBBox = pAnnot->GetXFAWidget()->GetBBox(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; } // TODO(bug 840): Implement so selected text can be obtained from XFA // fields. CFX_WideString CPDFSDK_XFAWidgetHandler::GetSelectedText( CPDFSDK_Annot* pAnnot) { return CFX_WideString(); } // TODO(bug 840): Implement so text can be inserted into and deleted from XFA // fields. void CPDFSDK_XFAWidgetHandler::ReplaceSelection(CPDFSDK_Annot* pAnnot, const CFX_WideString& text) {} bool CPDFSDK_XFAWidgetHandler::HitTest(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot, const CFX_PointF& point) { if (!pPageView || !pAnnot) return false; CPDFSDK_FormFillEnvironment* pFormFillEnv = pPageView->GetFormFillEnv(); if (!pFormFillEnv) return false; CPDFXFA_Context* pContext = pFormFillEnv->GetXFAContext(); if (!pContext) return false; CXFA_FFDocView* pDocView = pContext->GetXFADocView(); if (!pDocView) return false; CXFA_FFWidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler(); if (!pWidgetHandler) return false; FWL_WidgetHit dwHitTest = pWidgetHandler->OnHitTest(pAnnot->GetXFAWidget(), point); return dwHitTest != FWL_WidgetHit::Unknown; } void CPDFSDK_XFAWidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!pPageView || !(*pAnnot)) return; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); pWidgetHandler->OnMouseEnter((*pAnnot)->GetXFAWidget()); } void CPDFSDK_XFAWidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!pPageView || !(*pAnnot)) return; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); pWidgetHandler->OnMouseExit((*pAnnot)->GetXFAWidget()); } bool CPDFSDK_XFAWidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnLButtonDown((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnLButtonUp((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnLButtonDblClk( CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnLButtonDblClk((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnMouseMove((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, short zDelta, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnMouseWheel((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), zDelta, point); } bool CPDFSDK_XFAWidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnRButtonDown((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnRButtonUp((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::OnRButtonDblClk( CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!pPageView || !(*pAnnot)) return false; CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get()); return pWidgetHandler->OnRButtonDblClk((*pAnnot)->GetXFAWidget(), GetFWLFlags(nFlags), point); } bool CPDFSDK_XFAWidgetHandler::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)); } bool CPDFSDK_XFAWidgetHandler::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)); } bool CPDFSDK_XFAWidgetHandler::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)); } bool CPDFSDK_XFAWidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { return true; } bool CPDFSDK_XFAWidgetHandler::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { return true; } bool CPDFSDK_XFAWidgetHandler::OnXFAChangedFocus( CPDFSDK_Annot::ObservedPtr* pOldAnnot, CPDFSDK_Annot::ObservedPtr* pNewAnnot) { CXFA_FFWidgetHandler* pWidgetHandler = nullptr; if (*pOldAnnot) pWidgetHandler = GetXFAWidgetHandler(pOldAnnot->Get()); else if (*pNewAnnot) pWidgetHandler = GetXFAWidgetHandler(pNewAnnot->Get()); if (!pWidgetHandler) return true; CXFA_FFWidget* hWidget = *pNewAnnot ? (*pNewAnnot)->GetXFAWidget() : nullptr; if (!hWidget) return true; CXFA_FFPageView* pXFAPageView = hWidget->GetPageView(); if (!pXFAPageView) return true; bool bRet = pXFAPageView->GetDocView()->SetFocus(hWidget); if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget) bRet = true; return bRet; } CXFA_FFWidgetHandler* CPDFSDK_XFAWidgetHandler::GetXFAWidgetHandler( CPDFSDK_Annot* pAnnot) { if (!pAnnot) return nullptr; CPDFSDK_PageView* pPageView = pAnnot->GetPageView(); if (!pPageView) return nullptr; CPDFSDK_FormFillEnvironment* pFormFillEnv = pPageView->GetFormFillEnv(); if (!pFormFillEnv) return nullptr; CPDFXFA_Context* pDoc = pFormFillEnv->GetXFAContext(); if (!pDoc) return nullptr; CXFA_FFDocView* pDocView = pDoc->GetXFADocView(); if (!pDocView) return nullptr; return pDocView->GetWidgetHandler(); } uint32_t CPDFSDK_XFAWidgetHandler::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; }