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// Copyright 2014 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/formfiller/cffl_interactiveformfiller.h"
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fxcrt/autorestorer.h"
#include "core/fxge/cfx_graphstatedata.h"
#include "core/fxge/cfx_pathdata.h"
#include "core/fxge/cfx_renderdevice.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_checkbox.h"
#include "fpdfsdk/formfiller/cffl_combobox.h"
#include "fpdfsdk/formfiller/cffl_formfiller.h"
#include "fpdfsdk/formfiller/cffl_listbox.h"
#include "fpdfsdk/formfiller/cffl_pushbutton.h"
#include "fpdfsdk/formfiller/cffl_radiobutton.h"
#include "fpdfsdk/formfiller/cffl_textfield.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
CFFL_InteractiveFormFiller::CFFL_InteractiveFormFiller(
CPDFSDK_FormFillEnvironment* pFormFillEnv)
: m_pFormFillEnv(pFormFillEnv), m_bNotifying(false) {}
CFFL_InteractiveFormFiller::~CFFL_InteractiveFormFiller() {}
bool CFFL_InteractiveFormFiller::Annot_HitTest(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
const CFX_PointF& point) {
return pAnnot->GetRect().Contains(point);
}
FX_RECT CFFL_InteractiveFormFiller::GetViewBBox(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false))
return pFormFiller->GetViewBBox(pPageView, pAnnot);
ASSERT(pPageView);
CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
CFX_FloatRect rcWin = pPDFAnnot->GetRect();
if (!rcWin.IsEmpty()) {
rcWin.Inflate(1, 1);
rcWin.Normalize();
}
return rcWin.GetOuterRect();
}
void CFFL_InteractiveFormFiller::OnDraw(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
ASSERT(pPageView);
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
if (!IsVisible(pWidget))
return;
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
if (pFormFiller && pFormFiller->IsValid()) {
pFormFiller->OnDraw(pPageView, pAnnot, pDevice, mtUser2Device);
pAnnot->GetPDFPage();
if (m_pFormFillEnv->GetFocusAnnot() != pAnnot)
return;
CFX_FloatRect rcFocus = pFormFiller->GetFocusBox(pPageView);
if (rcFocus.IsEmpty())
return;
CFX_PathData path;
path.AppendPoint(CFX_PointF(rcFocus.left, rcFocus.top), FXPT_TYPE::MoveTo,
false);
path.AppendPoint(CFX_PointF(rcFocus.left, rcFocus.bottom),
FXPT_TYPE::LineTo, false);
path.AppendPoint(CFX_PointF(rcFocus.right, rcFocus.bottom),
FXPT_TYPE::LineTo, false);
path.AppendPoint(CFX_PointF(rcFocus.right, rcFocus.top), FXPT_TYPE::LineTo,
false);
path.AppendPoint(CFX_PointF(rcFocus.left, rcFocus.top), FXPT_TYPE::LineTo,
false);
CFX_GraphStateData gsd;
gsd.m_DashArray = {1.0f};
gsd.m_DashPhase = 0;
gsd.m_LineWidth = 1.0f;
pDevice->DrawPath(&path, &mtUser2Device, &gsd, 0, ArgbEncode(255, 0, 0, 0),
FXFILL_ALTERNATE);
return;
}
pFormFiller = GetFormFiller(pAnnot, false);
if (pFormFiller) {
pFormFiller->OnDrawDeactive(pPageView, pAnnot, pDevice, mtUser2Device);
} else {
pWidget->DrawAppearance(pDevice, mtUser2Device, CPDF_Annot::Normal,
nullptr);
}
if (!IsReadOnly(pWidget) && IsFillingAllowed(pWidget))
pWidget->DrawShadow(pDevice, pPageView);
}
void CFFL_InteractiveFormFiller::OnDelete(CPDFSDK_Annot* pAnnot) {
UnRegisterFormFiller(pAnnot);
}
void CFFL_InteractiveFormFiller::OnMouseEnter(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
if (!m_bNotifying) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (pWidget->GetAAction(CPDF_AAction::CursorEnter).GetDict()) {
m_bNotifying = true;
uint32_t nValueAge = pWidget->GetValueAge();
pWidget->ClearAppModified();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnAAction(CPDF_AAction::CursorEnter, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable())
return;
if (pWidget->IsAppModified()) {
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false)) {
pFormFiller->ResetPDFWindow(pPageView,
pWidget->GetValueAge() == nValueAge);
}
}
}
}
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), true))
pFormFiller->OnMouseEnter(pPageView, pAnnot->Get());
}
void CFFL_InteractiveFormFiller::OnMouseExit(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
if (!m_bNotifying) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (pWidget->GetAAction(CPDF_AAction::CursorExit).GetDict()) {
m_bNotifying = true;
uint32_t nValueAge = pWidget->GetValueAge();
pWidget->ClearAppModified();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnAAction(CPDF_AAction::CursorExit, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable())
return;
if (pWidget->IsAppModified()) {
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false)) {
pFormFiller->ResetPDFWindow(pPageView,
nValueAge == pWidget->GetValueAge());
}
}
}
}
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false))
pFormFiller->OnMouseExit(pPageView, pAnnot->Get());
}
bool CFFL_InteractiveFormFiller::OnLButtonDown(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
if (!m_bNotifying) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (Annot_HitTest(pPageView, pAnnot->Get(), point) &&
pWidget->GetAAction(CPDF_AAction::ButtonDown).GetDict()) {
m_bNotifying = true;
uint32_t nValueAge = pWidget->GetValueAge();
pWidget->ClearAppModified();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlags);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlags);
pWidget->OnAAction(CPDF_AAction::ButtonDown, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable())
return true;
if (!IsValidAnnot(pPageView, pAnnot->Get()))
return true;
if (pWidget->IsAppModified()) {
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false)) {
pFormFiller->ResetPDFWindow(pPageView,
nValueAge == pWidget->GetValueAge());
}
}
}
}
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
return pFormFiller &&
pFormFiller->OnLButtonDown(pPageView, pAnnot->Get(), nFlags, point);
}
bool CFFL_InteractiveFormFiller::OnLButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
bool bSetFocus;
switch (pWidget->GetFieldType()) {
case FormFieldType::kPushButton:
case FormFieldType::kCheckBox:
case FormFieldType::kRadioButton: {
FX_RECT bbox = GetViewBBox(pPageView, pAnnot->Get());
bSetFocus =
bbox.Contains(static_cast<int>(point.x), static_cast<int>(point.y));
break;
}
default:
bSetFocus = true;
break;
}
if (bSetFocus)
m_pFormFillEnv->SetFocusAnnot(pAnnot);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
bool bRet = pFormFiller &&
pFormFiller->OnLButtonUp(pPageView, pAnnot->Get(), nFlags, point);
if (m_pFormFillEnv->GetFocusAnnot() != pAnnot->Get())
return bRet;
if (OnButtonUp(pAnnot, pPageView, nFlags) || !pAnnot)
return true;
#ifdef PDF_ENABLE_XFA
if (OnClick(pAnnot, pPageView, nFlags) || !pAnnot)
return true;
#endif // PDF_ENABLE_XFA
return bRet;
}
bool CFFL_InteractiveFormFiller::OnButtonUp(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return false;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->GetAAction(CPDF_AAction::ButtonUp).GetDict())
return false;
m_bNotifying = true;
uint32_t nAge = pWidget->GetAppearanceAge();
uint32_t nValueAge = pWidget->GetValueAge();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnAAction(CPDF_AAction::ButtonUp, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable() || !IsValidAnnot(pPageView, pWidget))
return true;
if (nAge == pWidget->GetAppearanceAge())
return false;
CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false);
if (pFormFiller)
pFormFiller->ResetPDFWindow(pPageView, nValueAge == pWidget->GetValueAge());
return true;
}
bool CFFL_InteractiveFormFiller::OnLButtonDblClk(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
return pFormFiller &&
pFormFiller->OnLButtonDblClk(pPageView, pAnnot->Get(), nFlags, point);
}
bool CFFL_InteractiveFormFiller::OnMouseMove(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), true);
return pFormFiller &&
pFormFiller->OnMouseMove(pPageView, pAnnot->Get(), nFlags, point);
}
bool CFFL_InteractiveFormFiller::OnMouseWheel(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
short zDelta,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
return pFormFiller &&
pFormFiller->OnMouseWheel(pPageView, pAnnot->Get(), nFlags, zDelta,
point);
}
bool CFFL_InteractiveFormFiller::OnRButtonDown(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
return pFormFiller &&
pFormFiller->OnRButtonDown(pPageView, pAnnot->Get(), nFlags, point);
}
bool CFFL_InteractiveFormFiller::OnRButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
return pFormFiller &&
pFormFiller->OnRButtonUp(pPageView, pAnnot->Get(), nFlags, point);
}
bool CFFL_InteractiveFormFiller::OnKeyDown(CPDFSDK_Annot* pAnnot,
uint32_t nKeyCode,
uint32_t nFlags) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlags);
}
bool CFFL_InteractiveFormFiller::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
if (nChar == FWL_VKEY_Tab)
return true;
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->OnChar(pAnnot, nChar, nFlags);
}
bool CFFL_InteractiveFormFiller::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
if (!pAnnot->HasObservable())
return false;
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
if (!m_bNotifying) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (pWidget->GetAAction(CPDF_AAction::GetFocus).GetDict()) {
m_bNotifying = true;
uint32_t nValueAge = pWidget->GetValueAge();
pWidget->ClearAppModified();
CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, true);
if (!pFormFiller)
return false;
CPDFSDK_PageView* pPageView = (*pAnnot)->GetPageView();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pFormFiller->GetActionData(pPageView, CPDF_AAction::GetFocus, fa);
pWidget->OnAAction(CPDF_AAction::GetFocus, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable())
return false;
if (pWidget->IsAppModified()) {
if (CFFL_FormFiller* pFiller = GetFormFiller(pWidget, false)) {
pFiller->ResetPDFWindow(pPageView,
nValueAge == pWidget->GetValueAge());
}
}
}
}
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), true))
pFormFiller->SetFocusForAnnot(pAnnot->Get(), nFlag);
return true;
}
bool CFFL_InteractiveFormFiller::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
if (!pAnnot->HasObservable())
return false;
ASSERT((*pAnnot)->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot->Get(), false);
if (!pFormFiller)
return true;
pFormFiller->KillFocusForAnnot(pAnnot->Get(), nFlag);
if (!pAnnot->HasObservable())
return false;
if (m_bNotifying)
return true;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->GetAAction(CPDF_AAction::LoseFocus).GetDict())
return true;
m_bNotifying = true;
pWidget->ClearAppModified();
CPDFSDK_PageView* pPageView = pWidget->GetPageView();
ASSERT(pPageView);
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pFormFiller->GetActionData(pPageView, CPDF_AAction::LoseFocus, fa);
pWidget->OnAAction(CPDF_AAction::LoseFocus, &fa, pPageView);
m_bNotifying = false;
return pAnnot->HasObservable();
}
bool CFFL_InteractiveFormFiller::IsVisible(CPDFSDK_Widget* pWidget) {
return pWidget->IsVisible();
}
bool CFFL_InteractiveFormFiller::IsReadOnly(CPDFSDK_Widget* pWidget) {
int nFieldFlags = pWidget->GetFieldFlags();
return (nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY;
}
bool CFFL_InteractiveFormFiller::IsFillingAllowed(CPDFSDK_Widget* pWidget) {
if (pWidget->GetFieldType() == FormFieldType::kPushButton)
return false;
CPDF_Page* pPage = pWidget->GetPDFPage();
uint32_t dwPermissions = pPage->GetDocument()->GetUserPermissions();
return (dwPermissions & FPDFPERM_FILL_FORM) ||
(dwPermissions & FPDFPERM_ANNOT_FORM) ||
(dwPermissions & FPDFPERM_MODIFY);
}
CFFL_FormFiller* CFFL_InteractiveFormFiller::GetFormFiller(
CPDFSDK_Annot* pAnnot,
bool bRegister) {
auto it = m_Maps.find(pAnnot);
if (it != m_Maps.end())
return it->second.get();
if (!bRegister)
return nullptr;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
FormFieldType fieldType = pWidget->GetFieldType();
std::unique_ptr<CFFL_FormFiller> pFormFiller;
switch (fieldType) {
case FormFieldType::kPushButton:
pFormFiller =
pdfium::MakeUnique<CFFL_PushButton>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kCheckBox:
pFormFiller =
pdfium::MakeUnique<CFFL_CheckBox>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kRadioButton:
pFormFiller =
pdfium::MakeUnique<CFFL_RadioButton>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kTextField:
pFormFiller =
pdfium::MakeUnique<CFFL_TextField>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kListBox:
pFormFiller =
pdfium::MakeUnique<CFFL_ListBox>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kComboBox:
pFormFiller =
pdfium::MakeUnique<CFFL_ComboBox>(m_pFormFillEnv.Get(), pWidget);
break;
case FormFieldType::kUnknown:
default:
break;
}
if (!pFormFiller)
return nullptr;
CFFL_FormFiller* result = pFormFiller.get();
m_Maps[pAnnot] = std::move(pFormFiller);
return result;
}
WideString CFFL_InteractiveFormFiller::GetText(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller ? pFormFiller->GetText(pAnnot) : WideString();
}
WideString CFFL_InteractiveFormFiller::GetSelectedText(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller ? pFormFiller->GetSelectedText(pAnnot) : WideString();
}
void CFFL_InteractiveFormFiller::ReplaceSelection(CPDFSDK_Annot* pAnnot,
const WideString& text) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
if (!pFormFiller)
return;
pFormFiller->ReplaceSelection(pAnnot, text);
}
bool CFFL_InteractiveFormFiller::CanUndo(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->CanUndo(pAnnot);
}
bool CFFL_InteractiveFormFiller::CanRedo(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->CanRedo(pAnnot);
}
bool CFFL_InteractiveFormFiller::Undo(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->Undo(pAnnot);
}
bool CFFL_InteractiveFormFiller::Redo(CPDFSDK_Annot* pAnnot) {
ASSERT(pAnnot->GetPDFAnnot()->GetSubtype() == CPDF_Annot::Subtype::WIDGET);
CFFL_FormFiller* pFormFiller = GetFormFiller(pAnnot, false);
return pFormFiller && pFormFiller->Redo(pAnnot);
}
void CFFL_InteractiveFormFiller::UnRegisterFormFiller(CPDFSDK_Annot* pAnnot) {
auto it = m_Maps.find(pAnnot);
if (it == m_Maps.end())
return;
m_Maps.erase(it);
}
void CFFL_InteractiveFormFiller::QueryWherePopup(
CPWL_Wnd::PrivateData* pAttached,
float fPopupMin,
float fPopupMax,
bool* bBottom,
float* fPopupRet) {
auto* pData = static_cast<CFFL_PrivateData*>(pAttached);
CPDFSDK_Widget* pWidget = pData->pWidget;
CPDF_Page* pPage = pWidget->GetPDFPage();
CFX_FloatRect rcPageView(0, pPage->GetPageHeight(), pPage->GetPageWidth(), 0);
rcPageView.Normalize();
CFX_FloatRect rcAnnot = pWidget->GetRect();
float fTop = 0.0f;
float fBottom = 0.0f;
switch (pWidget->GetRotate() / 90) {
default:
case 0:
fTop = rcPageView.top - rcAnnot.top;
fBottom = rcAnnot.bottom - rcPageView.bottom;
break;
case 1:
fTop = rcAnnot.left - rcPageView.left;
fBottom = rcPageView.right - rcAnnot.right;
break;
case 2:
fTop = rcAnnot.bottom - rcPageView.bottom;
fBottom = rcPageView.top - rcAnnot.top;
break;
case 3:
fTop = rcPageView.right - rcAnnot.right;
fBottom = rcAnnot.left - rcPageView.left;
break;
}
constexpr float kMaxListBoxHeight = 140;
const float fMaxListBoxHeight =
pdfium::clamp(kMaxListBoxHeight, fPopupMin, fPopupMax);
if (fBottom > fMaxListBoxHeight) {
*fPopupRet = fMaxListBoxHeight;
*bBottom = true;
return;
}
if (fTop > fMaxListBoxHeight) {
*fPopupRet = fMaxListBoxHeight;
*bBottom = false;
return;
}
if (fTop > fBottom) {
*fPopupRet = fTop;
*bBottom = false;
} else {
*fPopupRet = fBottom;
*bBottom = true;
}
}
bool CFFL_InteractiveFormFiller::OnKeyStrokeCommit(
CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return true;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict())
return true;
ASSERT(pPageView);
m_bNotifying = true;
pWidget->ClearAppModified();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
fa.bWillCommit = true;
fa.bKeyDown = true;
fa.bRC = true;
CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false);
pFormFiller->GetActionData(pPageView, CPDF_AAction::KeyStroke, fa);
pFormFiller->SaveState(pPageView);
pWidget->OnAAction(CPDF_AAction::KeyStroke, &fa, pPageView);
if (!pAnnot->HasObservable())
return true;
m_bNotifying = false;
return fa.bRC;
}
bool CFFL_InteractiveFormFiller::OnValidate(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return true;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->GetAAction(CPDF_AAction::Validate).GetDict())
return true;
ASSERT(pPageView);
m_bNotifying = true;
pWidget->ClearAppModified();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
fa.bKeyDown = true;
fa.bRC = true;
CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false);
pFormFiller->GetActionData(pPageView, CPDF_AAction::Validate, fa);
pFormFiller->SaveState(pPageView);
pWidget->OnAAction(CPDF_AAction::Validate, &fa, pPageView);
if (!pAnnot->HasObservable())
return true;
m_bNotifying = false;
return fa.bRC;
}
void CFFL_InteractiveFormFiller::OnCalculate(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (pWidget) {
CPDFSDK_InterForm* pInterForm = pPageView->GetFormFillEnv()->GetInterForm();
pInterForm->OnCalculate(pWidget->GetFormField());
}
m_bNotifying = false;
}
void CFFL_InteractiveFormFiller::OnFormat(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
ASSERT(pWidget);
CPDFSDK_InterForm* pInterForm = pPageView->GetFormFillEnv()->GetInterForm();
Optional<WideString> sValue = pInterForm->OnFormat(pWidget->GetFormField());
if (!pAnnot->HasObservable())
return;
if (sValue.has_value()) {
pInterForm->ResetFieldAppearance(pWidget->GetFormField(), sValue, true);
pInterForm->UpdateField(pWidget->GetFormField());
}
m_bNotifying = false;
}
#ifdef PDF_ENABLE_XFA
bool CFFL_InteractiveFormFiller::OnClick(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return false;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->HasXFAAAction(PDFSDK_XFA_Click))
return false;
m_bNotifying = true;
uint32_t nAge = pWidget->GetAppearanceAge();
uint32_t nValueAge = pWidget->GetValueAge();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnXFAAAction(PDFSDK_XFA_Click, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable() || !IsValidAnnot(pPageView, pWidget))
return true;
if (nAge == pWidget->GetAppearanceAge())
return false;
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false))
pFormFiller->ResetPDFWindow(pPageView, nValueAge == pWidget->GetValueAge());
return false;
}
bool CFFL_InteractiveFormFiller::OnFull(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return false;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->HasXFAAAction(PDFSDK_XFA_Full))
return false;
m_bNotifying = true;
uint32_t nAge = pWidget->GetAppearanceAge();
uint32_t nValueAge = pWidget->GetValueAge();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnXFAAAction(PDFSDK_XFA_Full, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable() || !IsValidAnnot(pPageView, pWidget))
return true;
if (nAge == pWidget->GetAppearanceAge())
return false;
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false))
pFormFiller->ResetPDFWindow(pPageView, nValueAge == pWidget->GetValueAge());
return true;
}
bool CFFL_InteractiveFormFiller::OnPopupPreOpen(
CPWL_Wnd::PrivateData* pAttached,
uint32_t nFlag) {
auto* pData = static_cast<CFFL_PrivateData*>(pAttached);
ASSERT(pData);
ASSERT(pData->pWidget);
CPDFSDK_Annot::ObservedPtr pObserved(pData->pWidget);
return OnPreOpen(&pObserved, pData->pPageView, nFlag) || !pObserved;
}
bool CFFL_InteractiveFormFiller::OnPopupPostOpen(
CPWL_Wnd::PrivateData* pAttached,
uint32_t nFlag) {
auto* pData = static_cast<CFFL_PrivateData*>(pAttached);
ASSERT(pData);
ASSERT(pData->pWidget);
CPDFSDK_Annot::ObservedPtr pObserved(pData->pWidget);
return OnPostOpen(&pObserved, pData->pPageView, nFlag) || !pObserved;
}
bool CFFL_InteractiveFormFiller::OnPreOpen(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return false;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->HasXFAAAction(PDFSDK_XFA_PreOpen))
return false;
m_bNotifying = true;
uint32_t nAge = pWidget->GetAppearanceAge();
uint32_t nValueAge = pWidget->GetValueAge();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnXFAAAction(PDFSDK_XFA_PreOpen, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable() || !IsValidAnnot(pPageView, pWidget))
return true;
if (nAge == pWidget->GetAppearanceAge())
return false;
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false))
pFormFiller->ResetPDFWindow(pPageView, nValueAge == pWidget->GetValueAge());
return true;
}
bool CFFL_InteractiveFormFiller::OnPostOpen(CPDFSDK_Annot::ObservedPtr* pAnnot,
CPDFSDK_PageView* pPageView,
uint32_t nFlag) {
if (m_bNotifying)
return false;
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot->Get());
if (!pWidget->HasXFAAAction(PDFSDK_XFA_PostOpen))
return false;
m_bNotifying = true;
uint32_t nAge = pWidget->GetAppearanceAge();
uint32_t nValueAge = pWidget->GetValueAge();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
pWidget->OnXFAAAction(PDFSDK_XFA_PostOpen, &fa, pPageView);
m_bNotifying = false;
if (!pAnnot->HasObservable() || !IsValidAnnot(pPageView, pWidget))
return true;
if (nAge == pWidget->GetAppearanceAge())
return false;
if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, false))
pFormFiller->ResetPDFWindow(pPageView, nValueAge == pWidget->GetValueAge());
return true;
}
#endif // PDF_ENABLE_XFA
bool CFFL_InteractiveFormFiller::IsValidAnnot(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
return pPageView && pPageView->IsValidAnnot(pAnnot->GetPDFAnnot());
}
std::pair<bool, bool> CFFL_InteractiveFormFiller::OnBeforeKeyStroke(
CPWL_Wnd::PrivateData* pAttached,
WideString& strChange,
const WideString& strChangeEx,
int nSelStart,
int nSelEnd,
bool bKeyDown,
uint32_t nFlag) {
// Copy the private data since the window owning it may not survive.
CFFL_PrivateData privateData = *static_cast<CFFL_PrivateData*>(pAttached);
ASSERT(privateData.pWidget);
CFFL_FormFiller* pFormFiller = GetFormFiller(privateData.pWidget, false);
#ifdef PDF_ENABLE_XFA
if (pFormFiller->IsFieldFull(privateData.pPageView)) {
CPDFSDK_Annot::ObservedPtr pObserved(privateData.pWidget);
if (OnFull(&pObserved, privateData.pPageView, nFlag) || !pObserved)
return {true, true};
}
#endif // PDF_ENABLE_XFA
if (m_bNotifying ||
!privateData.pWidget->GetAAction(CPDF_AAction::KeyStroke).GetDict()) {
return {true, false};
}
AutoRestorer<bool> restorer(&m_bNotifying);
m_bNotifying = true;
uint32_t nAge = privateData.pWidget->GetAppearanceAge();
uint32_t nValueAge = privateData.pWidget->GetValueAge();
CPDFSDK_FormFillEnvironment* pFormFillEnv =
privateData.pPageView->GetFormFillEnv();
CPDFSDK_FieldAction fa;
fa.bModifier = CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(nFlag);
fa.bShift = CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(nFlag);
fa.sChange = strChange;
fa.sChangeEx = strChangeEx;
fa.bKeyDown = bKeyDown;
fa.bWillCommit = false;
fa.bRC = true;
fa.nSelStart = nSelStart;
fa.nSelEnd = nSelEnd;
pFormFiller->GetActionData(privateData.pPageView, CPDF_AAction::KeyStroke,
fa);
pFormFiller->SaveState(privateData.pPageView);
CPDFSDK_Annot::ObservedPtr pObserved(privateData.pWidget);
bool action_status = privateData.pWidget->OnAAction(
CPDF_AAction::KeyStroke, &fa, privateData.pPageView);
if (!pObserved || !IsValidAnnot(privateData.pPageView, privateData.pWidget))
return {true, true};
if (!action_status)
return {true, false};
bool bExit = false;
if (nAge != privateData.pWidget->GetAppearanceAge()) {
CPWL_Wnd* pWnd = pFormFiller->ResetPDFWindow(
privateData.pPageView, nValueAge == privateData.pWidget->GetValueAge());
if (!pWnd)
return {true, true};
privateData = *static_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
bExit = true;
}
if (fa.bRC) {
pFormFiller->SetActionData(privateData.pPageView, CPDF_AAction::KeyStroke,
fa);
} else {
pFormFiller->RestoreState(privateData.pPageView);
}
if (pFormFillEnv->GetFocusAnnot() == privateData.pWidget)
return {false, bExit};
pFormFiller->CommitData(privateData.pPageView, nFlag);
return {false, true};
}
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