// Copyright 2017 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 "xfa/fxfa/cxfa_fftextedit.h" #include <utility> #include "xfa/fwl/cfwl_datetimepicker.h" #include "xfa/fwl/cfwl_edit.h" #include "xfa/fwl/cfwl_eventcheckword.h" #include "xfa/fwl/cfwl_eventtarget.h" #include "xfa/fwl/cfwl_eventtextchanged.h" #include "xfa/fwl/cfwl_messagekillfocus.h" #include "xfa/fwl/cfwl_messagesetfocus.h" #include "xfa/fwl/cfwl_notedriver.h" #include "xfa/fxfa/cxfa_eventparam.h" #include "xfa/fxfa/cxfa_ffapp.h" #include "xfa/fxfa/cxfa_ffdoc.h" #include "xfa/fxfa/parser/cxfa_node.h" #include "xfa/fxfa/parser/cxfa_para.h" namespace { CFWL_Edit* ToEdit(CFWL_Widget* widget) { return static_cast<CFWL_Edit*>(widget); } } // namespace CXFA_FFTextEdit::CXFA_FFTextEdit(CXFA_Node* pNode) : CXFA_FFField(pNode), m_pOldDelegate(nullptr) {} CXFA_FFTextEdit::~CXFA_FFTextEdit() { if (m_pNormalWidget) { CFWL_NoteDriver* pNoteDriver = m_pNormalWidget->GetOwnerApp()->GetNoteDriver(); pNoteDriver->UnregisterEventTarget(m_pNormalWidget.get()); } } bool CXFA_FFTextEdit::LoadWidget() { auto pNewWidget = pdfium::MakeUnique<CFWL_Edit>( GetFWLApp(), pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr); CFWL_Edit* pFWLEdit = pNewWidget.get(); m_pNormalWidget = std::move(pNewWidget); m_pNormalWidget->SetLayoutItem(this); CFWL_NoteDriver* pNoteDriver = m_pNormalWidget->GetOwnerApp()->GetNoteDriver(); pNoteDriver->RegisterEventTarget(m_pNormalWidget.get(), m_pNormalWidget.get()); m_pOldDelegate = m_pNormalWidget->GetDelegate(); m_pNormalWidget->SetDelegate(this); m_pNormalWidget->LockUpdate(); UpdateWidgetProperty(); pFWLEdit->SetText( m_pNode->GetWidgetAcc()->GetValue(XFA_VALUEPICTURE_Display)); m_pNormalWidget->UnlockUpdate(); return CXFA_FFField::LoadWidget(); } void CXFA_FFTextEdit::UpdateWidgetProperty() { CFWL_Edit* pWidget = static_cast<CFWL_Edit*>(m_pNormalWidget.get()); if (!pWidget) return; uint32_t dwStyle = 0; uint32_t dwExtendedStyle = FWL_STYLEEXT_EDT_ShowScrollbarFocus | FWL_STYLEEXT_EDT_OuterScrollbar; dwExtendedStyle |= UpdateUIProperty(); if (m_pNode->GetWidgetAcc()->IsMultiLine()) { dwExtendedStyle |= FWL_STYLEEXT_EDT_MultiLine | FWL_STYLEEXT_EDT_WantReturn; if (!m_pNode->GetWidgetAcc()->IsVerticalScrollPolicyOff()) { dwStyle |= FWL_WGTSTYLE_VScroll; dwExtendedStyle |= FWL_STYLEEXT_EDT_AutoVScroll; } } else if (!m_pNode->GetWidgetAcc()->IsHorizontalScrollPolicyOff()) { dwExtendedStyle |= FWL_STYLEEXT_EDT_AutoHScroll; } if (!m_pNode->IsOpenAccess() || !GetDoc()->GetXFADoc()->IsInteractive()) { dwExtendedStyle |= FWL_STYLEEXT_EDT_ReadOnly; dwExtendedStyle |= FWL_STYLEEXT_EDT_MultiLine; } XFA_Element eType; int32_t iMaxChars; std::tie(eType, iMaxChars) = m_pNode->GetWidgetAcc()->GetMaxChars(); if (eType == XFA_Element::ExData) iMaxChars = 0; Optional<int32_t> numCells = m_pNode->GetWidgetAcc()->GetNumberOfCells(); if (!numCells) { pWidget->SetLimit(iMaxChars); } else if (*numCells == 0) { dwExtendedStyle |= FWL_STYLEEXT_EDT_CombText; pWidget->SetLimit(iMaxChars > 0 ? iMaxChars : 1); } else { dwExtendedStyle |= FWL_STYLEEXT_EDT_CombText; pWidget->SetLimit(*numCells); } dwExtendedStyle |= GetAlignment(); m_pNormalWidget->ModifyStyles(dwStyle, 0xFFFFFFFF); m_pNormalWidget->ModifyStylesEx(dwExtendedStyle, 0xFFFFFFFF); } bool CXFA_FFTextEdit::OnLButtonDown(uint32_t dwFlags, const CFX_PointF& point) { if (!PtInActiveRect(point)) return false; if (!IsFocused()) { m_dwStatus |= XFA_WidgetStatus_Focused; UpdateFWLData(); AddInvalidateRect(); } SetButtonDown(true); CFWL_MessageMouse ms(nullptr, m_pNormalWidget.get()); ms.m_dwCmd = FWL_MouseCommand::LeftButtonDown; ms.m_dwFlags = dwFlags; ms.m_pos = FWLToClient(point); TranslateFWLMessage(&ms); return true; } bool CXFA_FFTextEdit::OnRButtonDown(uint32_t dwFlags, const CFX_PointF& point) { if (!m_pNode->IsOpenAccess()) return false; if (!PtInActiveRect(point)) return false; if (!IsFocused()) { m_dwStatus |= XFA_WidgetStatus_Focused; UpdateFWLData(); AddInvalidateRect(); } SetButtonDown(true); CFWL_MessageMouse ms(nullptr, nullptr); ms.m_dwCmd = FWL_MouseCommand::RightButtonDown; ms.m_dwFlags = dwFlags; ms.m_pos = FWLToClient(point); TranslateFWLMessage(&ms); return true; } bool CXFA_FFTextEdit::OnRButtonUp(uint32_t dwFlags, const CFX_PointF& point) { if (!CXFA_FFField::OnRButtonUp(dwFlags, point)) return false; GetDoc()->GetDocEnvironment()->PopupMenu(this, point); return true; } bool CXFA_FFTextEdit::OnSetFocus(CXFA_FFWidget* pOldWidget) { m_dwStatus &= ~XFA_WidgetStatus_TextEditValueChanged; if (!IsFocused()) { m_dwStatus |= XFA_WidgetStatus_Focused; UpdateFWLData(); AddInvalidateRect(); } CXFA_FFWidget::OnSetFocus(pOldWidget); CFWL_MessageSetFocus ms(nullptr, m_pNormalWidget.get()); TranslateFWLMessage(&ms); return true; } bool CXFA_FFTextEdit::OnKillFocus(CXFA_FFWidget* pNewWidget) { CFWL_MessageKillFocus ms(nullptr, m_pNormalWidget.get()); TranslateFWLMessage(&ms); m_dwStatus &= ~XFA_WidgetStatus_Focused; SetEditScrollOffset(); ProcessCommittedData(); UpdateFWLData(); AddInvalidateRect(); CXFA_FFWidget::OnKillFocus(pNewWidget); m_dwStatus &= ~XFA_WidgetStatus_TextEditValueChanged; return true; } bool CXFA_FFTextEdit::CommitData() { WideString wsText = static_cast<CFWL_Edit*>(m_pNormalWidget.get())->GetText(); if (m_pNode->GetWidgetAcc()->SetValue(XFA_VALUEPICTURE_Edit, wsText)) { m_pNode->GetWidgetAcc()->UpdateUIDisplay(GetDoc()->GetDocView(), this); return true; } ValidateNumberField(wsText); return false; } void CXFA_FFTextEdit::ValidateNumberField(const WideString& wsText) { CXFA_WidgetAcc* pAcc = GetNode()->GetWidgetAcc(); if (!pAcc || pAcc->GetUIType() != XFA_Element::NumericEdit) return; IXFA_AppProvider* pAppProvider = GetApp()->GetAppProvider(); if (!pAppProvider) return; WideString wsSomField = pAcc->GetNode()->GetSOMExpression(); pAppProvider->MsgBox(WideString::Format(L"%ls can not contain %ls", wsText.c_str(), wsSomField.c_str()), pAppProvider->GetAppTitle(), XFA_MBICON_Error, XFA_MB_OK); } bool CXFA_FFTextEdit::IsDataChanged() { return (m_dwStatus & XFA_WidgetStatus_TextEditValueChanged) != 0; } uint32_t CXFA_FFTextEdit::GetAlignment() { CXFA_Para* para = m_pNode->GetParaIfExists(); if (!para) return 0; uint32_t dwExtendedStyle = 0; switch (para->GetHorizontalAlign()) { case XFA_AttributeEnum::Center: dwExtendedStyle |= FWL_STYLEEXT_EDT_HCenter; break; case XFA_AttributeEnum::Justify: dwExtendedStyle |= FWL_STYLEEXT_EDT_Justified; break; case XFA_AttributeEnum::JustifyAll: case XFA_AttributeEnum::Radix: break; case XFA_AttributeEnum::Right: dwExtendedStyle |= FWL_STYLEEXT_EDT_HFar; break; default: dwExtendedStyle |= FWL_STYLEEXT_EDT_HNear; break; } switch (para->GetVerticalAlign()) { case XFA_AttributeEnum::Middle: dwExtendedStyle |= FWL_STYLEEXT_EDT_VCenter; break; case XFA_AttributeEnum::Bottom: dwExtendedStyle |= FWL_STYLEEXT_EDT_VFar; break; default: dwExtendedStyle |= FWL_STYLEEXT_EDT_VNear; break; } return dwExtendedStyle; } bool CXFA_FFTextEdit::UpdateFWLData() { if (!m_pNormalWidget) return false; CFWL_Edit* pEdit = static_cast<CFWL_Edit*>(m_pNormalWidget.get()); XFA_VALUEPICTURE eType = XFA_VALUEPICTURE_Display; if (IsFocused()) eType = XFA_VALUEPICTURE_Edit; bool bUpdate = false; if (m_pNode->GetWidgetAcc()->GetUIType() == XFA_Element::TextEdit && !m_pNode->GetWidgetAcc()->GetNumberOfCells()) { XFA_Element elementType; int32_t iMaxChars; std::tie(elementType, iMaxChars) = m_pNode->GetWidgetAcc()->GetMaxChars(); if (elementType == XFA_Element::ExData) iMaxChars = eType == XFA_VALUEPICTURE_Edit ? iMaxChars : 0; if (pEdit->GetLimit() != iMaxChars) { pEdit->SetLimit(iMaxChars); bUpdate = true; } } else if (m_pNode->GetWidgetAcc()->GetUIType() == XFA_Element::Barcode) { int32_t nDataLen = 0; if (eType == XFA_VALUEPICTURE_Edit) nDataLen = m_pNode->GetBarcodeAttribute_DataLength().value_or(0); pEdit->SetLimit(nDataLen); bUpdate = true; } WideString wsText = m_pNode->GetWidgetAcc()->GetValue(eType); WideString wsOldText = pEdit->GetText(); if (wsText != wsOldText || (eType == XFA_VALUEPICTURE_Edit && bUpdate)) { pEdit->SetText(wsText); bUpdate = true; } if (bUpdate) m_pNormalWidget->Update(); return true; } void CXFA_FFTextEdit::OnTextChanged(CFWL_Widget* pWidget, const WideString& wsChanged, const WideString& wsPrevText) { m_dwStatus |= XFA_WidgetStatus_TextEditValueChanged; CXFA_EventParam eParam; eParam.m_eType = XFA_EVENT_Change; eParam.m_wsChange = wsChanged; eParam.m_pTarget = m_pNode->GetWidgetAcc(); eParam.m_wsPrevText = wsPrevText; CFWL_Edit* pEdit = static_cast<CFWL_Edit*>(m_pNormalWidget.get()); if (m_pNode->GetWidgetAcc()->GetUIType() == XFA_Element::DateTimeEdit) { CFWL_DateTimePicker* pDateTime = (CFWL_DateTimePicker*)pEdit; eParam.m_wsNewText = pDateTime->GetEditText(); if (pDateTime->HasSelection()) { size_t count; std::tie(eParam.m_iSelStart, count) = pDateTime->GetSelection(); eParam.m_iSelEnd = eParam.m_iSelStart + count; } } else { eParam.m_wsNewText = pEdit->GetText(); if (pEdit->HasSelection()) std::tie(eParam.m_iSelStart, eParam.m_iSelEnd) = pEdit->GetSelection(); } m_pNode->ProcessEvent(GetDocView(), XFA_AttributeEnum::Change, &eParam); } void CXFA_FFTextEdit::OnTextFull(CFWL_Widget* pWidget) { CXFA_EventParam eParam; eParam.m_eType = XFA_EVENT_Full; eParam.m_pTarget = m_pNode->GetWidgetAcc(); m_pNode->ProcessEvent(GetDocView(), XFA_AttributeEnum::Full, &eParam); } bool CXFA_FFTextEdit::CheckWord(const ByteStringView& sWord) { return sWord.IsEmpty() || m_pNode->GetWidgetAcc()->GetUIType() != XFA_Element::TextEdit; } void CXFA_FFTextEdit::OnProcessMessage(CFWL_Message* pMessage) { m_pOldDelegate->OnProcessMessage(pMessage); } void CXFA_FFTextEdit::OnProcessEvent(CFWL_Event* pEvent) { CXFA_FFField::OnProcessEvent(pEvent); switch (pEvent->GetType()) { case CFWL_Event::Type::TextChanged: { CFWL_EventTextChanged* event = static_cast<CFWL_EventTextChanged*>(pEvent); WideString wsChange; OnTextChanged(m_pNormalWidget.get(), wsChange, event->wsPrevText); break; } case CFWL_Event::Type::TextFull: { OnTextFull(m_pNormalWidget.get()); break; } case CFWL_Event::Type::CheckWord: { WideString wstr(L"FWL_EVENT_DTP_SelectChanged"); CFWL_EventCheckWord* event = static_cast<CFWL_EventCheckWord*>(pEvent); event->bCheckWord = CheckWord(event->bsWord.AsStringView()); break; } default: break; } m_pOldDelegate->OnProcessEvent(pEvent); } void CXFA_FFTextEdit::OnDrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) { m_pOldDelegate->OnDrawWidget(pGraphics, matrix); } bool CXFA_FFTextEdit::CanUndo() { return ToEdit(m_pNormalWidget.get())->CanUndo(); } bool CXFA_FFTextEdit::CanRedo() { return ToEdit(m_pNormalWidget.get())->CanRedo(); } bool CXFA_FFTextEdit::Undo() { return ToEdit(m_pNormalWidget.get())->Undo(); } bool CXFA_FFTextEdit::Redo() { return ToEdit(m_pNormalWidget.get())->Redo(); } bool CXFA_FFTextEdit::CanCopy() { return ToEdit(m_pNormalWidget.get())->HasSelection(); } bool CXFA_FFTextEdit::CanCut() { if (ToEdit(m_pNormalWidget.get())->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly) return false; return ToEdit(m_pNormalWidget.get())->HasSelection(); } bool CXFA_FFTextEdit::CanPaste() { return !(ToEdit(m_pNormalWidget.get())->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly); } bool CXFA_FFTextEdit::CanSelectAll() { return ToEdit(m_pNormalWidget.get())->GetTextLength() > 0; } Optional<WideString> CXFA_FFTextEdit::Copy() { return ToEdit(m_pNormalWidget.get())->Copy(); } Optional<WideString> CXFA_FFTextEdit::Cut() { return ToEdit(m_pNormalWidget.get())->Cut(); } bool CXFA_FFTextEdit::Paste(const WideString& wsPaste) { return ToEdit(m_pNormalWidget.get())->Paste(wsPaste); } void CXFA_FFTextEdit::SelectAll() { ToEdit(m_pNormalWidget.get())->SelectAll(); } void CXFA_FFTextEdit::Delete() { ToEdit(m_pNormalWidget.get())->ClearText(); } void CXFA_FFTextEdit::DeSelect() { ToEdit(m_pNormalWidget.get())->ClearSelection(); }