// 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/pdfwindow/PWL_ListBox.h" #include "third_party/base/ptr_util.h" #define FFL_DEFAULTLISTBOXFONTSIZE 12.0f CFFL_ListBox::CFFL_ListBox(CPDFSDK_FormFillEnvironment* pApp, CPDFSDK_Annot* 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, m_pFormFillEnv->GetSysHandler()); } cp.pFontMap = m_pFontMap.get(); return cp; } CPWL_Wnd* CFFL_ListBox::NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView* pPageView) { 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); CPWL_Wnd* pRet = nullptr; if (bRestoreValue) { RestoreState(pPageView); pRet = GetPDFWindow(pPageView, false); } else { pRet = GetPDFWindow(pPageView, true); } m_pWidget->UpdateField(); return pRet; }