// 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_formfiller.h" #include "fpdfsdk/formfiller/cffl_interactiveformfiller.h" #include "fpdfsdk/fsdk_common.h" #include "fpdfsdk/pdfwindow/PWL_ComboBox.h" CFFL_ComboBox::CFFL_ComboBox(CPDFSDK_FormFillEnvironment* pApp, CPDFSDK_Annot* pAnnot) : CFFL_FormFiller(pApp, pAnnot), m_pFontMap(nullptr) { 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(); delete m_pFontMap; } PWL_CREATEPARAM CFFL_ComboBox::GetCreateParam() { PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam(); int nFlags = m_pWidget->GetFieldFlags(); if (nFlags & FIELDFLAG_EDIT) { cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT; } if (!m_pFontMap) m_pFontMap = new CBA_FontMap(m_pWidget, GetSystemHandler()); cp.pFontMap = m_pFontMap; cp.pFocusHandler = this; return cp; } CPWL_Wnd* CFFL_ComboBox::NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView* pPageView) { CPWL_ComboBox* 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_FormFiller::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->GetSel(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->SetSel(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->GetSel(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->SetSel(m_State.nStart, m_State.nEnd); } } } } CPWL_Wnd* CFFL_ComboBox::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; } #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_Wnd* pWnd) { ASSERT(m_pFormFillEnv); if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT) { CPWL_Edit* pEdit = (CPWL_Edit*)pWnd; pEdit->SetCharSet(FXFONT_GB2312_CHARSET); pEdit->SetCodePage(936); pEdit->SetReadyToInput(); CFX_WideString wsText = pEdit->GetText(); int nCharacters = wsText.GetLength(); CFX_ByteString bsUTFText = wsText.UTF16LE_Encode(); unsigned short* pBuffer = (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; }