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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_textfield.h"
#include "fpdfsdk/cpdfsdk_common.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cba_fontmap.h"
#include "third_party/base/ptr_util.h"
CFFL_TextField::CFFL_TextField(CPDFSDK_FormFillEnvironment* pApp,
CPDFSDK_Widget* pWidget)
: CFFL_TextObject(pApp, pWidget) {}
CFFL_TextField::~CFFL_TextField() {
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_TextField::GetCreateParam() {
CPWL_Wnd::CreateParams cp = CFFL_TextObject::GetCreateParam();
int nFlags = m_pWidget->GetFieldFlags();
if (nFlags & FIELDFLAG_PASSWORD)
cp.dwFlags |= PES_PASSWORD;
if (nFlags & FIELDFLAG_MULTILINE) {
cp.dwFlags |= PES_MULTILINE | PES_AUTORETURN | PES_TOP;
if (!(nFlags & FIELDFLAG_DONOTSCROLL))
cp.dwFlags |= PWS_VSCROLL | PES_AUTOSCROLL;
} else {
cp.dwFlags |= PES_CENTER;
if (!(nFlags & FIELDFLAG_DONOTSCROLL))
cp.dwFlags |= PES_AUTOSCROLL;
}
if (nFlags & FIELDFLAG_COMB)
cp.dwFlags |= PES_CHARARRAY;
if (nFlags & FIELDFLAG_RICHTEXT)
cp.dwFlags |= PES_RICH;
cp.dwFlags |= PES_UNDO;
switch (m_pWidget->GetAlignment()) {
default:
case BF_ALIGN_LEFT:
cp.dwFlags |= PES_LEFT;
break;
case BF_ALIGN_MIDDLE:
cp.dwFlags |= PES_MIDDLE;
break;
case BF_ALIGN_RIGHT:
cp.dwFlags |= PES_RIGHT;
break;
}
cp.pFontMap = MaybeCreateFontMap();
cp.pFocusHandler = this;
return cp;
}
CPWL_Wnd* CFFL_TextField::NewPDFWindow(const CPWL_Wnd::CreateParams& cp) {
auto* pWnd = new CPWL_Edit();
pWnd->AttachFFLData(this);
pWnd->Create(cp);
pWnd->SetFillerNotify(m_pFormFillEnv->GetInteractiveFormFiller());
int32_t nMaxLen = m_pWidget->GetMaxLen();
WideString swValue = m_pWidget->GetValue();
if (nMaxLen > 0) {
if (pWnd->HasFlag(PES_CHARARRAY)) {
pWnd->SetCharArray(nMaxLen);
pWnd->SetAlignFormatVerticalCenter();
} else {
pWnd->SetLimitChar(nMaxLen);
}
}
pWnd->SetText(swValue);
return pWnd;
}
bool CFFL_TextField::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
switch (nChar) {
case FWL_VKEY_Return: {
if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTILINE)
break;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
m_bValid = !m_bValid;
m_pFormFillEnv->Invalidate(pAnnot->GetPage(),
pAnnot->GetRect().GetOuterRect());
if (m_bValid) {
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, true))
pWnd->SetFocus();
break;
}
if (!CommitData(pPageView, nFlags))
return false;
DestroyPDFWindow(pPageView);
return true;
}
case FWL_VKEY_Escape: {
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
EscapeFiller(pPageView, true);
return true;
}
}
return CFFL_TextObject::OnChar(pAnnot, nChar, nFlags);
}
bool CFFL_TextField::IsDataChanged(CPDFSDK_PageView* pPageView) {
CPWL_Edit* pEdit = GetEdit(pPageView, false);
return pEdit && pEdit->GetText() != m_pWidget->GetValue();
}
void CFFL_TextField::SaveData(CPDFSDK_PageView* pPageView) {
CPWL_Edit* pWnd = GetEdit(pPageView, false);
if (!pWnd)
return;
WideString sOldValue = m_pWidget->GetValue();
WideString sNewValue = pWnd->GetText();
CPDFSDK_Widget::ObservedPtr observed_widget(m_pWidget.Get());
CFFL_TextField::ObservedPtr observed_this(this);
m_pWidget->SetValue(sNewValue, NotificationOption::kDoNotNotify);
if (!observed_widget)
return;
m_pWidget->ResetFieldAppearance(true);
if (!observed_widget)
return;
m_pWidget->UpdateField();
if (!observed_widget || !observed_this)
return;
SetChangeMark();
}
void CFFL_TextField::GetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
CPDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::KeyStroke:
if (CPWL_Edit* pWnd = GetEdit(pPageView, false)) {
fa.bFieldFull = pWnd->IsTextFull();
fa.sValue = pWnd->GetText();
if (fa.bFieldFull) {
fa.sChange = L"";
fa.sChangeEx = L"";
}
}
break;
case CPDF_AAction::Validate:
if (CPWL_Edit* pWnd = GetEdit(pPageView, false)) {
fa.sValue = pWnd->GetText();
}
break;
case CPDF_AAction::LoseFocus:
case CPDF_AAction::GetFocus:
fa.sValue = m_pWidget->GetValue();
break;
default:
break;
}
}
void CFFL_TextField::SetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
const CPDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::KeyStroke:
if (CPWL_Edit* pEdit = GetEdit(pPageView, false)) {
pEdit->SetFocus();
pEdit->SetSelection(fa.nSelStart, fa.nSelEnd);
pEdit->ReplaceSel(fa.sChange);
}
break;
default:
break;
}
}
bool CFFL_TextField::IsActionDataChanged(CPDF_AAction::AActionType type,
const CPDFSDK_FieldAction& faOld,
const CPDFSDK_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_TextField::SaveState(CPDFSDK_PageView* pPageView) {
ASSERT(pPageView);
CPWL_Edit* pWnd = GetEdit(pPageView, false);
if (!pWnd)
return;
pWnd->GetSelection(m_State.nStart, m_State.nEnd);
m_State.sValue = pWnd->GetText();
}
void CFFL_TextField::RestoreState(CPDFSDK_PageView* pPageView) {
ASSERT(pPageView);
CPWL_Edit* pWnd = GetEdit(pPageView, true);
if (!pWnd)
return;
pWnd->SetText(m_State.sValue);
pWnd->SetSelection(m_State.nStart, m_State.nEnd);
}
#ifdef PDF_ENABLE_XFA
bool CFFL_TextField::IsFieldFull(CPDFSDK_PageView* pPageView) {
CPWL_Edit* pWnd = GetEdit(pPageView, false);
return pWnd && pWnd->IsTextFull();
}
#endif // PDF_ENABLE_XFA
void CFFL_TextField::OnSetFocus(CPWL_Edit* pEdit) {
pEdit->SetCharSet(FX_CHARSET_ChineseSimplified);
pEdit->SetReadyToInput();
WideString wsText = pEdit->GetText();
int nCharacters = wsText.GetLength();
ByteString bsUTFText = wsText.UTF16LE_Encode();
auto* pBuffer = reinterpret_cast<const unsigned short*>(bsUTFText.c_str());
m_pFormFillEnv->OnSetFieldInputFocus(pBuffer, nCharacters, true);
}
CPWL_Edit* CFFL_TextField::GetEdit(CPDFSDK_PageView* pPageView, bool bNew) {
return static_cast<CPWL_Edit*>(GetPDFWindow(pPageView, bNew));
}
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