| // 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(nullptr) {} |
| |
| 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(0, 0, 0, 0); |
| } |
| |
| bool CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView, |
| CPDFSDK_Annot* pAnnot, |
| const CFX_PointF& point) { |
| ASSERT(pPageView); |
| ASSERT(pAnnot); |
| return GetViewBBox(pPageView, pAnnot).Contains(point); |
| } |