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// 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_widgethandler.h"
#include <memory>
#include <vector>
#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
#include "core/fpdfdoc/include/cpdf_interform.h"
#include "fpdfsdk/formfiller/cffl_formfiller.h"
#include "fpdfsdk/include/cpdfsdk_annot.h"
#include "fpdfsdk/include/cpdfsdk_interform.h"
#include "fpdfsdk/include/cpdfsdk_widget.h"
#include "fpdfsdk/include/fsdk_mgr.h"
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
#endif // PDF_ENABLE_XFA
CPDFSDK_WidgetHandler::CPDFSDK_WidgetHandler(CPDFDoc_Environment* pApp)
: m_pApp(pApp), m_pFormFiller(nullptr) {}
CPDFSDK_WidgetHandler::~CPDFSDK_WidgetHandler() {}
FX_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();
CPDF_Document* pDocument = pPage->m_pDocument;
uint32_t dwPermissions = pDocument->GetUserPermissions();
return (dwPermissions & FPDFPERM_FILL_FORM) ||
(dwPermissions & FPDFPERM_ANNOT_FORM);
}
CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CPDF_Annot* pAnnot,
CPDFSDK_PageView* pPage) {
CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
CPDFSDK_InterForm* pInterForm = pSDKDoc->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::DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
CFX_RenderDevice* pDevice,
CFX_Matrix* pUser2Device) {
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::OnDelete(CPDFSDK_Annot* pAnnot) {}
void CPDFSDK_WidgetHandler::OnRelease(CPDFSDK_Annot* pAnnot) {}
void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlag) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
}
void CPDFSDK_WidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlag) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
}
FX_BOOL CPDFSDK_WidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
short zDelta,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
return FALSE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_FloatPoint& point) {
return FALSE;
}
FX_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;
}
FX_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;
}
FX_BOOL CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
int nKeyCode,
int nFlag) {
return FALSE;
}
void CPDFSDK_WidgetHandler::OnCreate(CPDFSDK_Annot* pAnnot) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
m_pFormFiller->OnCreate(pAnnot);
}
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) {
FX_BOOL bFormatted = FALSE;
CFX_WideString sValue = pWidget->OnFormat(bFormatted);
if (bFormatted && nFieldType == FIELDTYPE_COMBOBOX)
pWidget->ResetAppearance(&sValue, FALSE);
}
#ifdef PDF_ENABLE_XFA
CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
if (pDoc->GetDocType() == DOCTYPE_STATIC_XFA) {
if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty())
pWidget->ResetAppearance(FALSE);
}
#endif // PDF_ENABLE_XFA
if (m_pFormFiller)
m_pFormFiller->OnLoad(pAnnot);
}
FX_BOOL CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
uint32_t nFlag) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnSetFocus(pAnnot, nFlag);
return TRUE;
}
FX_BOOL CPDFSDK_WidgetHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
uint32_t nFlag) {
if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
return m_pFormFiller->OnKillFocus(pAnnot, nFlag);
return TRUE;
}
#ifdef PDF_ENABLE_XFA
FX_BOOL CPDFSDK_WidgetHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
CPDFSDK_Annot* 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);
}
FX_BOOL CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
const CFX_FloatPoint& point) {
ASSERT(pPageView);
ASSERT(pAnnot);
CFX_FloatRect rect = GetViewBBox(pPageView, pAnnot);
return rect.Contains(point.x, point.y);
}
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