// 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_widgethandler.h" #include <memory> #include <vector> #include "core/fpdfapi/page/cpdf_page.h" #include "core/fpdfapi/parser/cpdf_document.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_widget.h" #include "fpdfsdk/formfiller/cffl_formfiller.h" #ifdef PDF_ENABLE_XFA #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" #endif // PDF_ENABLE_XFA CPDFSDK_WidgetHandler::CPDFSDK_WidgetHandler( CPDFSDK_FormFillEnvironment* pFormFillEnv) : m_pFormFillEnv(pFormFillEnv), m_pFormFiller(pFormFillEnv->GetInteractiveFormFiller()) {} CPDFSDK_WidgetHandler::~CPDFSDK_WidgetHandler() {} bool CPDFSDK_WidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) { ASSERT(pAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::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(); uint32_t dwPermissions = pPage->m_pDocument->GetUserPermissions(); return (dwPermissions & FPDFPERM_FILL_FORM) || (dwPermissions & FPDFPERM_ANNOT_FORM); } CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CPDF_Annot* pAnnot, CPDFSDK_PageView* pPage) { CPDFSDK_InterForm* pInterForm = m_pFormFillEnv->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::OnDraw(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot, CFX_RenderDevice* pDevice, CFX_Matrix* pUser2Device, bool bDrawAnnots) { 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); } } void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag); } void CPDFSDK_WidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag); } bool CPDFSDK_WidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, short zDelta, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta, point); return false; } bool CPDFSDK_WidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point); return false; } bool CPDFSDK_WidgetHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView, CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlags, const CFX_PointF& point) { return false; } 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; } 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; } bool CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag) { return false; } 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) { bool bFormatted = false; CPDFSDK_Annot::ObservedPtr pObserved(pWidget); CFX_WideString sValue = pWidget->OnFormat(bFormatted); if (!pObserved) return; if (bFormatted && nFieldType == FIELDTYPE_COMBOBOX) pWidget->ResetAppearance(&sValue, false); } #ifdef PDF_ENABLE_XFA CPDFSDK_PageView* pPageView = pAnnot->GetPageView(); CPDFXFA_Context* pContext = pPageView->GetFormFillEnv()->GetXFAContext(); if (pContext->GetDocType() == XFA_DocType::Static) { if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty()) pWidget->ResetAppearance(false); } #endif // PDF_ENABLE_XFA } bool CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnSetFocus(pAnnot, nFlag); return true; } bool CPDFSDK_WidgetHandler::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, uint32_t nFlag) { if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->OnKillFocus(pAnnot, nFlag); return true; } #ifdef PDF_ENABLE_XFA bool CPDFSDK_WidgetHandler::OnXFAChangedFocus( CPDFSDK_Annot::ObservedPtr* pOldAnnot, CPDFSDK_Annot::ObservedPtr* 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(); } CFX_WideString CPDFSDK_WidgetHandler::GetSelectedText(CPDFSDK_Annot* pAnnot) { if (!pAnnot->IsSignatureWidget() && m_pFormFiller) return m_pFormFiller->GetSelectedText(pAnnot); return CFX_WideString(); } void CPDFSDK_WidgetHandler::DeleteSelectedText(CPDFSDK_Annot* pAnnot) { if (!pAnnot->IsSignatureWidget() && m_pFormFiller) m_pFormFiller->DeleteSelectedText(pAnnot); } bool CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot, const CFX_PointF& point) { ASSERT(pPageView); ASSERT(pAnnot); return GetViewBBox(pPageView, pAnnot).Contains(point); }