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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_listbox.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cba_fontmap.h"
#include "fpdfsdk/formfiller/cffl_formfiller.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fpdfsdk/fsdk_common.h"
#include "fpdfsdk/pwl/cpwl_list_box.h"
#include "third_party/base/ptr_util.h"
#define FFL_DEFAULTLISTBOXFONTSIZE 12.0f
CFFL_ListBox::CFFL_ListBox(CPDFSDK_FormFillEnvironment* pApp,
CPDFSDK_Widget* pWidget)
: CFFL_FormFiller(pApp, pWidget) {}
CFFL_ListBox::~CFFL_ListBox() {}
PWL_CREATEPARAM CFFL_ListBox::GetCreateParam() {
PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
uint32_t dwFieldFlag = m_pWidget->GetFieldFlags();
if (dwFieldFlag & FIELDFLAG_MULTISELECT)
cp.dwFlags |= PLBS_MULTIPLESEL;
cp.dwFlags |= PWS_VSCROLL;
if (cp.dwFlags & PWS_AUTOFONTSIZE)
cp.fFontSize = FFL_DEFAULTLISTBOXFONTSIZE;
if (!m_pFontMap) {
m_pFontMap = pdfium::MakeUnique<CBA_FontMap>(
m_pWidget.Get(), m_pFormFillEnv->GetSysHandler());
}
cp.pFontMap = m_pFontMap.get();
return cp;
}
CPWL_Wnd* CFFL_ListBox::NewPDFWindow(const PWL_CREATEPARAM& cp) {
CPWL_ListBox* pWnd = new CPWL_ListBox();
pWnd->AttachFFLData(this);
pWnd->Create(cp);
pWnd->SetFillerNotify(m_pFormFillEnv->GetInteractiveFormFiller());
for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++)
pWnd->AddString(m_pWidget->GetOptionLabel(i));
if (pWnd->HasFlag(PLBS_MULTIPLESEL)) {
m_OriginSelections.clear();
bool bSetCaret = false;
for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
if (m_pWidget->IsOptionSelected(i)) {
if (!bSetCaret) {
pWnd->SetCaret(i);
bSetCaret = true;
}
pWnd->Select(i);
m_OriginSelections.insert(i);
}
}
} else {
for (int i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
if (m_pWidget->IsOptionSelected(i)) {
pWnd->Select(i);
break;
}
}
}
pWnd->SetTopVisibleIndex(m_pWidget->GetTopVisibleIndex());
return pWnd;
}
bool CFFL_ListBox::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
}
bool CFFL_ListBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
CPWL_ListBox* pListBox = (CPWL_ListBox*)GetPDFWindow(pPageView, false);
if (!pListBox)
return false;
if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
size_t nSelCount = 0;
for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; ++i) {
if (pListBox->IsItemSelected(i)) {
if (m_OriginSelections.count(i) == 0)
return true;
++nSelCount;
}
}
return nSelCount != m_OriginSelections.size();
}
return pListBox->GetCurSel() != m_pWidget->GetSelectedIndex(0);
}
void CFFL_ListBox::SaveData(CPDFSDK_PageView* pPageView) {
CPWL_ListBox* pListBox =
static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
if (!pListBox)
return;
int32_t nNewTopIndex = pListBox->GetTopVisibleIndex();
m_pWidget->ClearSelection(false);
if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; i++) {
if (pListBox->IsItemSelected(i))
m_pWidget->SetOptionSelection(i, true, false);
}
} else {
m_pWidget->SetOptionSelection(pListBox->GetCurSel(), true, false);
}
m_pWidget->SetTopVisibleIndex(nNewTopIndex);
m_pWidget->ResetFieldAppearance(true);
m_pWidget->UpdateField();
SetChangeMark();
}
void CFFL_ListBox::GetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
PDFSDK_FieldAction& fa) {
switch (type) {
case CPDF_AAction::Validate:
if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
fa.sValue = L"";
} else {
if (CPWL_ListBox* pListBox =
(CPWL_ListBox*)GetPDFWindow(pPageView, false)) {
int32_t nCurSel = pListBox->GetCurSel();
if (nCurSel >= 0)
fa.sValue = m_pWidget->GetOptionLabel(nCurSel);
}
}
break;
case CPDF_AAction::LoseFocus:
case CPDF_AAction::GetFocus:
if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
fa.sValue = L"";
} else {
int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
if (nCurSel >= 0)
fa.sValue = m_pWidget->GetOptionLabel(nCurSel);
}
break;
default:
break;
}
}
void CFFL_ListBox::SaveState(CPDFSDK_PageView* pPageView) {
ASSERT(pPageView);
CPWL_ListBox* pListBox =
static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
if (!pListBox)
return;
for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; i++) {
if (pListBox->IsItemSelected(i))
m_State.push_back(i);
}
}
void CFFL_ListBox::RestoreState(CPDFSDK_PageView* pPageView) {
CPWL_ListBox* pListBox =
static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
if (!pListBox)
return;
for (const auto& item : m_State)
pListBox->Select(item);
}
CPWL_Wnd* CFFL_ListBox::ResetPDFWindow(CPDFSDK_PageView* pPageView,
bool bRestoreValue) {
if (bRestoreValue)
SaveState(pPageView);
DestroyPDFWindow(pPageView);
if (bRestoreValue)
RestoreState(pPageView);
CPWL_Wnd::ObservedPtr pRet(GetPDFWindow(pPageView, !bRestoreValue));
m_pWidget->UpdateField(); // May invoke JS, invalidating pRet.
return pRet.Get();
}
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