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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_combobox.h"
#include <utility>
#include "constants/form_flags.h"
#include "core/fpdfdoc/cpdf_bafontmap.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fpdfsdk/pwl/cpwl_combo_box.h"
#include "fpdfsdk/pwl/cpwl_edit.h"
CFFL_ComboBox::CFFL_ComboBox(CPDFSDK_FormFillEnvironment* pApp,
CPDFSDK_Widget* pWidget)
: CFFL_TextObject(pApp, pWidget) {}
CFFL_ComboBox::~CFFL_ComboBox() {
for (const auto& it : m_Maps)
it.second->InvalidateFocusHandler(this);
// See comment in cffl_formfiller.h.
// The font map should be stored somewhere more appropriate so it will live
// until the PWL_Edit is done with it. pdfium:566
DestroyWindows();
}
CPWL_Wnd::CreateParams CFFL_ComboBox::GetCreateParam() {
CPWL_Wnd::CreateParams cp = CFFL_TextObject::GetCreateParam();
if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
cp.pFontMap = GetOrCreateFontMap();
cp.pFocusHandler = this;
return cp;
}
std::unique_ptr<CPWL_Wnd> CFFL_ComboBox::NewPWLWindow(
const CPWL_Wnd::CreateParams& cp,
std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) {
auto pWnd = std::make_unique<CPWL_ComboBox>(cp, std::move(pAttachedData));
pWnd->AttachFFLData(this);
pWnd->Realize();
pWnd->SetFillerNotify(m_pFormFillEnv->GetInteractiveFormFiller());
int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
WideString swText;
if (nCurSel < 0)
swText = m_pWidget->GetValue();
else
swText = m_pWidget->GetOptionLabel(nCurSel);
for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++)
pWnd->AddString(m_pWidget->GetOptionLabel(i));
pWnd->SetSelect(nCurSel);
pWnd->SetText(swText);
return std::move(pWnd);
}
bool CFFL_ComboBox::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
return CFFL_TextObject::OnChar(pAnnot, nChar, nFlags);
}
bool CFFL_ComboBox::IsDataChanged(const CPDFSDK_PageView* pPageView) {
auto* pWnd = GetComboBox(pPageView);
if (!pWnd)
return false;
int32_t nCurSel = pWnd->GetSelect();
if (!(m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit))
return nCurSel != m_pWidget->GetSelectedIndex(0);
if (nCurSel >= 0)
return nCurSel != m_pWidget->GetSelectedIndex(0);
return pWnd->GetText() != m_pWidget->GetValue();
}
void CFFL_ComboBox::SaveData(const CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pWnd = GetComboBox(pPageView);
if (!pWnd)
return;
WideString swText = pWnd->GetText();
int32_t nCurSel = pWnd->GetSelect();
bool bSetValue = false;
if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
bSetValue = (nCurSel < 0) || (swText != m_pWidget->GetOptionLabel(nCurSel));
if (bSetValue) {
m_pWidget->SetValue(swText);
} else {
m_pWidget->GetSelectedIndex(0);
m_pWidget->SetOptionSelection(nCurSel);
}
ObservedPtr<CPDFSDK_Widget> observed_widget(m_pWidget.Get());
ObservedPtr<CFFL_ComboBox> observed_this(this);
m_pWidget->ResetFieldAppearance();
if (!observed_widget)
return;
m_pWidget->UpdateField();
if (!observed_widget || !observed_this)
return;
SetChangeMark();
}
void CFFL_ComboBox::GetActionData(const CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
CPDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::kKeyStroke:
if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView)) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
fa.bFieldFull = pEdit->IsTextFull();
std::tie(fa.nSelStart, fa.nSelEnd) = pEdit->GetSelection();
fa.sValue = pEdit->GetText();
fa.sChangeEx = GetSelectExportText();
if (fa.bFieldFull) {
fa.sChange.clear();
fa.sChangeEx.clear();
}
}
}
break;
case CPDF_AAction::kValidate:
if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView)) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
fa.sValue = pEdit->GetText();
}
}
break;
case CPDF_AAction::kLoseFocus:
case CPDF_AAction::kGetFocus:
fa.sValue = m_pWidget->GetValue();
break;
default:
break;
}
}
void CFFL_ComboBox::SetActionData(const CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
const CPDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::kKeyStroke:
if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView)) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
pEdit->SetSelection(fa.nSelStart, fa.nSelEnd);
pEdit->ReplaceSelection(fa.sChange);
}
}
break;
default:
break;
}
}
void CFFL_ComboBox::SavePWLWindowState(const CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pComboBox = GetComboBox(pPageView);
if (!pComboBox)
return;
m_State.nIndex = pComboBox->GetSelect();
CPWL_Edit* pEdit = pComboBox->GetEdit();
if (!pEdit)
return;
std::tie(m_State.nStart, m_State.nEnd) = pEdit->GetSelection();
m_State.sValue = pEdit->GetText();
}
void CFFL_ComboBox::RecreatePWLWindowFromSavedState(
const CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pComboBox = CreateOrUpdateComboBox(pPageView);
if (!pComboBox)
return;
if (m_State.nIndex >= 0) {
pComboBox->SetSelect(m_State.nIndex);
return;
}
CPWL_Edit* pEdit = pComboBox->GetEdit();
if (!pEdit)
return;
pEdit->SetText(m_State.sValue);
pEdit->SetSelection(m_State.nStart, m_State.nEnd);
}
bool CFFL_ComboBox::SetIndexSelected(int index, bool selected) {
if (!IsValid() || !selected)
return false;
if (index < 0 || index >= m_pWidget->CountOptions())
return false;
CPWL_ComboBox* pWnd = GetComboBox(GetCurPageView());
if (!pWnd)
return false;
pWnd->SetSelect(index);
return true;
}
bool CFFL_ComboBox::IsIndexSelected(int index) {
if (!IsValid())
return false;
if (index < 0 || index >= m_pWidget->CountOptions())
return false;
CPWL_ComboBox* pWnd = GetComboBox(GetCurPageView());
return pWnd && index == pWnd->GetSelect();
}
#ifdef PDF_ENABLE_XFA
bool CFFL_ComboBox::IsFieldFull(const CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pComboBox = GetComboBox(pPageView);
if (!pComboBox)
return false;
CPWL_Edit* pEdit = pComboBox->GetEdit();
return pEdit && pEdit->IsTextFull();
}
#endif // PDF_ENABLE_XFA
void CFFL_ComboBox::OnSetFocus(CPWL_Edit* pEdit) {
pEdit->SetCharSet(FX_Charset::kChineseSimplified);
pEdit->SetReadyToInput();
WideString wsText = pEdit->GetText();
int nCharacters = wsText.GetLength();
ByteString bsUTFText = wsText.ToUTF16LE();
auto* pBuffer = reinterpret_cast<const unsigned short*>(bsUTFText.c_str());
m_pFormFillEnv->OnSetFieldInputFocus(pBuffer, nCharacters, true);
}
WideString CFFL_ComboBox::GetSelectExportText() {
WideString swRet;
CPWL_ComboBox* pComboBox = GetComboBox(GetCurPageView());
int nExport = pComboBox ? pComboBox->GetSelect() : -1;
if (nExport >= 0) {
if (CPDF_FormField* pFormField = m_pWidget->GetFormField()) {
swRet = pFormField->GetOptionValue(nExport);
if (swRet.IsEmpty())
swRet = pFormField->GetOptionLabel(nExport);
}
}
return swRet;
}
CPWL_ComboBox* CFFL_ComboBox::GetComboBox(
const CPDFSDK_PageView* pPageView) const {
return static_cast<CPWL_ComboBox*>(GetPWLWindow(pPageView));
}
CPWL_ComboBox* CFFL_ComboBox::CreateOrUpdateComboBox(
const CPDFSDK_PageView* pPageView) {
return static_cast<CPWL_ComboBox*>(CreateOrUpdatePWLWindow(pPageView));
}