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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 "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cba_fontmap.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fpdfsdk/fsdk_common.h"
#include "fpdfsdk/pwl/cpwl_combo_box.h"
#include "third_party/base/ptr_util.h"
CFFL_ComboBox::CFFL_ComboBox(CPDFSDK_FormFillEnvironment* pApp,
CPDFSDK_Widget* pWidget)
: CFFL_TextObject(pApp, pWidget) {
m_State.nIndex = 0;
m_State.nStart = 0;
m_State.nEnd = 0;
}
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() & FIELDFLAG_EDIT)
cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
cp.pFontMap = MaybeCreateFontMap();
cp.pFocusHandler = this;
return cp;
}
CPWL_Wnd* CFFL_ComboBox::NewPDFWindow(const CPWL_Wnd::CreateParams& cp) {
auto* pWnd = new CPWL_ComboBox();
pWnd->AttachFFLData(this);
pWnd->Create(cp);
CFFL_InteractiveFormFiller* pFormFiller =
m_pFormFillEnv->GetInteractiveFormFiller();
pWnd->SetFillerNotify(pFormFiller);
int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
CFX_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 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(CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, false);
if (!pWnd)
return false;
int32_t nCurSel = pWnd->GetSelect();
if (!(m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT))
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(CPDFSDK_PageView* pPageView) {
CPWL_ComboBox* pWnd =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false));
if (!pWnd)
return;
CFX_WideString swText = pWnd->GetText();
int32_t nCurSel = pWnd->GetSelect();
bool bSetValue = false;
if (m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT)
bSetValue = (nCurSel < 0) || (swText != m_pWidget->GetOptionLabel(nCurSel));
if (bSetValue) {
m_pWidget->SetValue(swText, false);
} else {
m_pWidget->GetSelectedIndex(0);
m_pWidget->SetOptionSelection(nCurSel, true, false);
}
m_pWidget->ResetFieldAppearance(true);
m_pWidget->UpdateField();
SetChangeMark();
m_pWidget->GetPDFPage();
}
void CFFL_ComboBox::GetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
PDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::KeyStroke:
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false))) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
fa.bFieldFull = pEdit->IsTextFull();
int nSelStart = 0;
int nSelEnd = 0;
pEdit->GetSelection(nSelStart, nSelEnd);
fa.nSelEnd = nSelEnd;
fa.nSelStart = nSelStart;
fa.sValue = pEdit->GetText();
fa.sChangeEx = GetSelectExportText();
if (fa.bFieldFull) {
fa.sChange = L"";
fa.sChangeEx = L"";
}
}
}
break;
case CPDF_AAction::Validate:
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false))) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
fa.sValue = pEdit->GetText();
}
}
break;
case CPDF_AAction::LoseFocus:
case CPDF_AAction::GetFocus:
fa.sValue = m_pWidget->GetValue();
break;
default:
break;
}
}
void CFFL_ComboBox::SetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
const PDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::KeyStroke:
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false))) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
pEdit->SetSelection(fa.nSelStart, fa.nSelEnd);
pEdit->ReplaceSel(fa.sChange);
}
}
break;
default:
break;
}
}
bool CFFL_ComboBox::IsActionDataChanged(CPDF_AAction::AActionType type,
const PDFSDK_FieldAction& faOld,
const PDFSDK_FieldAction& faNew) {
switch (type) {
case CPDF_AAction::KeyStroke:
return (!faOld.bFieldFull && faOld.nSelEnd != faNew.nSelEnd) ||
faOld.nSelStart != faNew.nSelStart ||
faOld.sChange != faNew.sChange;
default:
break;
}
return false;
}
void CFFL_ComboBox::SaveState(CPDFSDK_PageView* pPageView) {
ASSERT(pPageView);
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false))) {
m_State.nIndex = pComboBox->GetSelect();
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
pEdit->GetSelection(m_State.nStart, m_State.nEnd);
m_State.sValue = pEdit->GetText();
}
}
}
void CFFL_ComboBox::RestoreState(CPDFSDK_PageView* pPageView) {
ASSERT(pPageView);
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, true))) {
if (m_State.nIndex >= 0) {
pComboBox->SetSelect(m_State.nIndex);
} else {
if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
pEdit->SetText(m_State.sValue);
pEdit->SetSelection(m_State.nStart, m_State.nEnd);
}
}
}
}
#ifdef PDF_ENABLE_XFA
bool CFFL_ComboBox::IsFieldFull(CPDFSDK_PageView* pPageView) {
if (CPWL_ComboBox* pComboBox =
static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, false))) {
if (CPWL_Edit* pEdit = pComboBox->GetEdit())
return pEdit->IsTextFull();
}
return false;
}
#endif // PDF_ENABLE_XFA
void CFFL_ComboBox::OnSetFocus(CPWL_Edit* pEdit) {
pEdit->SetCharSet(FX_CHARSET_ChineseSimplified);
pEdit->SetReadyToInput();
CFX_WideString wsText = pEdit->GetText();
int nCharacters = wsText.GetLength();
CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
auto* pBuffer = reinterpret_cast<const unsigned short*>(bsUTFText.c_str());
m_pFormFillEnv->OnSetFieldInputFocus(pBuffer, nCharacters, true);
}
CFX_WideString CFFL_ComboBox::GetSelectExportText() {
CFX_WideString swRet;
int nExport = -1;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
if (CPWL_ComboBox* pComboBox =
(CPWL_ComboBox*)GetPDFWindow(pPageView, false)) {
nExport = pComboBox->GetSelect();
}
if (nExport >= 0) {
if (CPDF_FormField* pFormField = m_pWidget->GetFormField()) {
swRet = pFormField->GetOptionValue(nExport);
if (swRet.IsEmpty())
swRet = pFormField->GetOptionLabel(nExport);
}
}
return swRet;
}
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