// 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_common.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/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); 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; 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); } CPDFSDK_Widget::ObservedPtr observed_widget(m_pWidget.Get()); CFFL_ComboBox::ObservedPtr observed_this(this); m_pWidget->ResetFieldAppearance(true); if (!observed_widget) return; m_pWidget->UpdateField(); if (!observed_widget || !observed_this) return; SetChangeMark(); m_pWidget->GetPDFPage(); } void CFFL_ComboBox::GetActionData(CPDFSDK_PageView* pPageView, CPDF_AAction::AActionType type, CPDFSDK_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 CPDFSDK_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 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_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(); 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); } WideString CFFL_ComboBox::GetSelectExportText() { 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; }