286 lines
10 KiB
C++
286 lines
10 KiB
C++
// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fpdfsdk/cpdfsdk_widgethandler.h"
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#include <memory>
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#include <vector>
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#include "core/fpdfapi/page/cpdf_page.h"
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#include "core/fpdfapi/parser/cpdf_document.h"
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#include "core/fpdfdoc/cpdf_interform.h"
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#include "fpdfsdk/cpdfsdk_annot.h"
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#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
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#include "fpdfsdk/cpdfsdk_interform.h"
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#include "fpdfsdk/cpdfsdk_pageview.h"
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#include "fpdfsdk/cpdfsdk_widget.h"
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#include "fpdfsdk/formfiller/cffl_formfiller.h"
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#ifdef PDF_ENABLE_XFA
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#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
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#endif // PDF_ENABLE_XFA
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CPDFSDK_WidgetHandler::CPDFSDK_WidgetHandler(
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CPDFSDK_FormFillEnvironment* pFormFillEnv)
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: m_pFormFillEnv(pFormFillEnv), m_pFormFiller(nullptr) {}
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CPDFSDK_WidgetHandler::~CPDFSDK_WidgetHandler() {}
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bool CPDFSDK_WidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
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ASSERT(pAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::WIDGET);
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if (pAnnot->IsSignatureWidget())
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return false;
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CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot);
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if (!pWidget->IsVisible())
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return false;
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int nFieldFlags = pWidget->GetFieldFlags();
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if ((nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY)
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return false;
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if (pWidget->GetFieldType() == FIELDTYPE_PUSHBUTTON)
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return true;
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CPDF_Page* pPage = pWidget->GetPDFPage();
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CPDF_Document* pDocument = pPage->m_pDocument;
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uint32_t dwPermissions = pDocument->GetUserPermissions();
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return (dwPermissions & FPDFPERM_FILL_FORM) ||
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(dwPermissions & FPDFPERM_ANNOT_FORM);
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}
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CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CPDF_Annot* pAnnot,
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CPDFSDK_PageView* pPage) {
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CPDFSDK_InterForm* pInterForm = m_pFormFillEnv->GetInterForm();
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CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl(
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pInterForm->GetInterForm(), pAnnot->GetAnnotDict());
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if (!pCtrl)
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return nullptr;
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CPDFSDK_Widget* pWidget = new CPDFSDK_Widget(pAnnot, pPage, pInterForm);
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pInterForm->AddMap(pCtrl, pWidget);
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CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
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if (pPDFInterForm && pPDFInterForm->NeedConstructAP())
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pWidget->ResetAppearance(nullptr, false);
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return pWidget;
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}
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#ifdef PDF_ENABLE_XFA
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CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CXFA_FFWidget* hWidget,
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CPDFSDK_PageView* pPage) {
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return nullptr;
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}
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#endif // PDF_ENABLE_XFA
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void CPDFSDK_WidgetHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
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ASSERT(pAnnot);
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if (m_pFormFiller)
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m_pFormFiller->OnDelete(pAnnot);
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std::unique_ptr<CPDFSDK_Widget> pWidget(static_cast<CPDFSDK_Widget*>(pAnnot));
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CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
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CPDF_FormControl* pControl = pWidget->GetFormControl();
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pInterForm->RemoveMap(pControl);
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}
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void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot* pAnnot,
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CFX_RenderDevice* pDevice,
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CFX_Matrix* pUser2Device,
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bool bDrawAnnots) {
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if (pAnnot->IsSignatureWidget()) {
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static_cast<CPDFSDK_BAAnnot*>(pAnnot)->DrawAppearance(
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pDevice, pUser2Device, CPDF_Annot::Normal, nullptr);
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} else {
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if (m_pFormFiller)
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m_pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device);
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}
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}
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void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlag) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
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}
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void CPDFSDK_WidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlag) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
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}
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bool CPDFSDK_WidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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short zDelta,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
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point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlags,
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const CFX_PointF& point) {
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnChar(CPDFSDK_Annot* pAnnot,
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uint32_t nChar,
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uint32_t nFlags) {
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnChar(pAnnot, nChar, nFlags);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
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int nKeyCode,
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int nFlag) {
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlag);
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return false;
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}
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bool CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
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int nKeyCode,
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int nFlag) {
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return false;
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}
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void CPDFSDK_WidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
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if (pAnnot->IsSignatureWidget())
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return;
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CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot);
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if (!pWidget->IsAppearanceValid())
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pWidget->ResetAppearance(nullptr, false);
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int nFieldType = pWidget->GetFieldType();
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if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX) {
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bool bFormatted = false;
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CFX_WideString sValue = pWidget->OnFormat(bFormatted);
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if (bFormatted && nFieldType == FIELDTYPE_COMBOBOX)
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pWidget->ResetAppearance(&sValue, false);
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}
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#ifdef PDF_ENABLE_XFA
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CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
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CPDFXFA_Context* pContext = pPageView->GetFormFillEnv()->GetXFAContext();
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if (pContext->GetDocType() == DOCTYPE_STATIC_XFA) {
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if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty())
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pWidget->ResetAppearance(false);
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}
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#endif // PDF_ENABLE_XFA
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}
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bool CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlag) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnSetFocus(pAnnot, nFlag);
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return true;
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}
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bool CPDFSDK_WidgetHandler::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
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uint32_t nFlag) {
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller)
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return m_pFormFiller->OnKillFocus(pAnnot, nFlag);
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return true;
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}
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#ifdef PDF_ENABLE_XFA
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bool CPDFSDK_WidgetHandler::OnXFAChangedFocus(
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CPDFSDK_Annot::ObservedPtr* pOldAnnot,
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CPDFSDK_Annot::ObservedPtr* pNewAnnot) {
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return true;
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}
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#endif // PDF_ENABLE_XFA
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CFX_FloatRect CPDFSDK_WidgetHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot* pAnnot) {
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
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return CFX_FloatRect(m_pFormFiller->GetViewBBox(pPageView, pAnnot));
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return CFX_FloatRect(0, 0, 0, 0);
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}
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bool CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView,
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CPDFSDK_Annot* pAnnot,
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const CFX_PointF& point) {
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ASSERT(pPageView);
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ASSERT(pAnnot);
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return GetViewBBox(pPageView, pAnnot).Contains(point);
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}
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