blob: 6f8d73269e66807816d3d4aec4dc58fcf5e1a291 [file] [log] [blame]
// 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 "third_party/base/ptr_util.h"
#include "xfa/fwl/cfwl_datetimepicker.h"
#include "xfa/fwl/cfwl_edit.h"
#include "xfa/fwl/cfwl_eventtarget.h"
#include "xfa/fwl/cfwl_eventtextwillchange.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/cxfa_ffdocview.h"
#include "xfa/fxfa/parser/cxfa_barcode.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) {}
CXFA_FFTextEdit::~CXFA_FFTextEdit() {
if (GetNormalWidget()) {
CFWL_NoteDriver* pNoteDriver =
GetNormalWidget()->GetOwnerApp()->GetNoteDriver();
pNoteDriver->UnregisterEventTarget(GetNormalWidget());
}
}
bool CXFA_FFTextEdit::LoadWidget() {
ASSERT(!IsLoaded());
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retain_layout(m_pLayoutItem.Get());
auto pNewWidget = pdfium::MakeUnique<CFWL_Edit>(
GetFWLApp(), pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr);
CFWL_Edit* pFWLEdit = pNewWidget.get();
SetNormalWidget(std::move(pNewWidget));
pFWLEdit->SetAdapterIface(this);
CFWL_NoteDriver* pNoteDriver = pFWLEdit->GetOwnerApp()->GetNoteDriver();
pNoteDriver->RegisterEventTarget(pFWLEdit, pFWLEdit);
m_pOldDelegate = pFWLEdit->GetDelegate();
pFWLEdit->SetDelegate(this);
{
CFWL_Widget::ScopedUpdateLock update_lock(pFWLEdit);
UpdateWidgetProperty();
pFWLEdit->SetText(m_pNode->GetValue(XFA_VALUEPICTURE_Display));
}
return CXFA_FFField::LoadWidget();
}
void CXFA_FFTextEdit::UpdateWidgetProperty() {
CFWL_Edit* pWidget = ToEdit(GetNormalWidget());
if (!pWidget)
return;
uint32_t dwStyle = 0;
uint32_t dwExtendedStyle =
FWL_STYLEEXT_EDT_ShowScrollbarFocus | FWL_STYLEEXT_EDT_OuterScrollbar;
dwExtendedStyle |= UpdateUIProperty();
if (m_pNode->IsMultiLine()) {
dwExtendedStyle |= FWL_STYLEEXT_EDT_MultiLine | FWL_STYLEEXT_EDT_WantReturn;
if (!m_pNode->IsVerticalScrollPolicyOff()) {
dwStyle |= FWL_WGTSTYLE_VScroll;
dwExtendedStyle |= FWL_STYLEEXT_EDT_AutoVScroll;
}
} else if (!m_pNode->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->GetMaxChars();
if (eType == XFA_Element::ExData)
iMaxChars = 0;
Optional<int32_t> numCells = m_pNode->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();
GetNormalWidget()->ModifyStyles(dwStyle, 0xFFFFFFFF);
GetNormalWidget()->ModifyStylesEx(dwExtendedStyle, 0xFFFFFFFF);
}
bool CXFA_FFTextEdit::AcceptsFocusOnButtonDown(uint32_t dwFlags,
const CFX_PointF& point,
FWL_MouseCommand command) {
if (command == FWL_MouseCommand::RightButtonDown && !m_pNode->IsOpenAccess())
return false;
if (!PtInActiveRect(point))
return false;
return true;
}
bool CXFA_FFTextEdit::OnLButtonDown(uint32_t dwFlags, const CFX_PointF& point) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
if (!IsFocused()) {
GetLayoutItem()->SetStatusBits(XFA_WidgetStatus_Focused);
UpdateFWLData();
InvalidateRect();
}
SetButtonDown(true);
SendMessageToFWLWidget(pdfium::MakeUnique<CFWL_MessageMouse>(
GetNormalWidget(), FWL_MouseCommand::LeftButtonDown, dwFlags,
FWLToClient(point)));
return true;
}
bool CXFA_FFTextEdit::OnRButtonDown(uint32_t dwFlags, const CFX_PointF& point) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
if (!IsFocused()) {
GetLayoutItem()->SetStatusBits(XFA_WidgetStatus_Focused);
UpdateFWLData();
InvalidateRect();
}
SetButtonDown(true);
SendMessageToFWLWidget(pdfium::MakeUnique<CFWL_MessageMouse>(
nullptr, FWL_MouseCommand::RightButtonDown, dwFlags, FWLToClient(point)));
return true;
}
bool CXFA_FFTextEdit::OnRButtonUp(uint32_t dwFlags, const CFX_PointF& point) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
if (!CXFA_FFField::OnRButtonUp(dwFlags, point))
return false;
GetDoc()->GetDocEnvironment()->PopupMenu(this, point);
return true;
}
bool CXFA_FFTextEdit::OnSetFocus(CXFA_FFWidget* pOldWidget) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
ObservedPtr<CXFA_FFWidget> pOldWatched(pOldWidget);
GetLayoutItem()->ClearStatusBits(XFA_WidgetStatus_TextEditValueChanged);
if (!IsFocused()) {
GetLayoutItem()->SetStatusBits(XFA_WidgetStatus_Focused);
UpdateFWLData();
InvalidateRect();
}
if (!CXFA_FFWidget::OnSetFocus(pOldWatched.Get()))
return false;
SendMessageToFWLWidget(
pdfium::MakeUnique<CFWL_MessageSetFocus>(nullptr, GetNormalWidget()));
return true;
}
bool CXFA_FFTextEdit::OnKillFocus(CXFA_FFWidget* pNewWidget) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
ObservedPtr<CXFA_FFWidget> pNewWatched(pNewWidget);
SendMessageToFWLWidget(
pdfium::MakeUnique<CFWL_MessageKillFocus>(nullptr, GetNormalWidget()));
GetLayoutItem()->ClearStatusBits(XFA_WidgetStatus_Focused);
SetEditScrollOffset();
ProcessCommittedData();
UpdateFWLData();
InvalidateRect();
if (!CXFA_FFWidget::OnKillFocus(pNewWatched.Get()))
return false;
GetLayoutItem()->ClearStatusBits(XFA_WidgetStatus_TextEditValueChanged);
return true;
}
bool CXFA_FFTextEdit::CommitData() {
WideString wsText = ToEdit(GetNormalWidget())->GetText();
if (m_pNode->SetValue(XFA_VALUEPICTURE_Edit, wsText)) {
GetDoc()->GetDocView()->UpdateUIDisplay(m_pNode.Get(), this);
return true;
}
ValidateNumberField(wsText);
return false;
}
void CXFA_FFTextEdit::ValidateNumberField(const WideString& wsText) {
if (GetNode()->GetFFWidgetType() != XFA_FFWidgetType::kNumericEdit)
return;
IXFA_AppProvider* pAppProvider = GetAppProvider();
if (!pAppProvider)
return;
WideString wsSomField = GetNode()->GetSOMExpression();
pAppProvider->MsgBox(
wsText + WideString::FromASCII(" can not contain ") + wsSomField,
pAppProvider->GetAppTitle(), static_cast<uint32_t>(AlertIcon::kError),
static_cast<uint32_t>(AlertButton::kOK));
}
bool CXFA_FFTextEdit::IsDataChanged() {
return GetLayoutItem()->TestStatusBits(XFA_WidgetStatus_TextEditValueChanged);
}
uint32_t CXFA_FFTextEdit::GetAlignment() {
CXFA_Para* para = m_pNode->GetParaIfExists();
if (!para)
return 0;
uint32_t dwExtendedStyle = 0;
switch (para->GetHorizontalAlign()) {
case XFA_AttributeValue::Center:
dwExtendedStyle |= FWL_STYLEEXT_EDT_HCenter;
break;
case XFA_AttributeValue::Justify:
dwExtendedStyle |= FWL_STYLEEXT_EDT_Justified;
break;
case XFA_AttributeValue::JustifyAll:
case XFA_AttributeValue::Radix:
break;
case XFA_AttributeValue::Right:
dwExtendedStyle |= FWL_STYLEEXT_EDT_HFar;
break;
default:
dwExtendedStyle |= FWL_STYLEEXT_EDT_HNear;
break;
}
switch (para->GetVerticalAlign()) {
case XFA_AttributeValue::Middle:
dwExtendedStyle |= FWL_STYLEEXT_EDT_VCenter;
break;
case XFA_AttributeValue::Bottom:
dwExtendedStyle |= FWL_STYLEEXT_EDT_VFar;
break;
default:
dwExtendedStyle |= FWL_STYLEEXT_EDT_VNear;
break;
}
return dwExtendedStyle;
}
bool CXFA_FFTextEdit::UpdateFWLData() {
CFWL_Edit* pEdit = ToEdit(GetNormalWidget());
if (!pEdit)
return false;
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
XFA_VALUEPICTURE eType = XFA_VALUEPICTURE_Display;
if (IsFocused())
eType = XFA_VALUEPICTURE_Edit;
bool bUpdate = false;
if (m_pNode->GetFFWidgetType() == XFA_FFWidgetType::kTextEdit &&
!m_pNode->GetNumberOfCells()) {
XFA_Element elementType;
int32_t iMaxChars;
std::tie(elementType, iMaxChars) = m_pNode->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->GetFFWidgetType() == XFA_FFWidgetType::kBarcode) {
int32_t nDataLen = 0;
if (eType == XFA_VALUEPICTURE_Edit) {
nDataLen = static_cast<CXFA_Barcode*>(m_pNode->GetUIChildNode())
->GetDataLength()
.value_or(0);
}
pEdit->SetLimit(nDataLen);
bUpdate = true;
}
WideString wsText = m_pNode->GetValue(eType);
WideString wsOldText = pEdit->GetText();
if (wsText != wsOldText || (eType == XFA_VALUEPICTURE_Edit && bUpdate)) {
pEdit->SetTextSkipNotify(wsText);
bUpdate = true;
}
if (bUpdate)
GetNormalWidget()->Update();
return true;
}
void CXFA_FFTextEdit::OnTextWillChange(CFWL_Widget* pWidget,
CFWL_EventTextWillChange* event) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
GetLayoutItem()->SetStatusBits(XFA_WidgetStatus_TextEditValueChanged);
CXFA_EventParam eParam;
eParam.m_eType = XFA_EVENT_Change;
eParam.m_wsChange = event->change_text;
eParam.m_pTarget = m_pNode.Get();
eParam.m_wsPrevText = event->previous_text;
eParam.m_iSelStart = static_cast<int32_t>(event->selection_start);
eParam.m_iSelEnd = static_cast<int32_t>(event->selection_end);
m_pNode->ProcessEvent(GetDocView(), XFA_AttributeValue::Change, &eParam);
// Copy the data back out of the EventParam and into the TextChanged event so
// it can propagate back to the calling widget.
event->cancelled = eParam.m_bCancelAction;
event->change_text = std::move(eParam.m_wsChange);
event->selection_start = static_cast<size_t>(eParam.m_iSelStart);
event->selection_end = static_cast<size_t>(eParam.m_iSelEnd);
}
void CXFA_FFTextEdit::OnTextFull(CFWL_Widget* pWidget) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
CXFA_EventParam eParam;
eParam.m_eType = XFA_EVENT_Full;
eParam.m_pTarget = m_pNode.Get();
m_pNode->ProcessEvent(GetDocView(), XFA_AttributeValue::Full, &eParam);
}
void CXFA_FFTextEdit::OnProcessMessage(CFWL_Message* pMessage) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
m_pOldDelegate->OnProcessMessage(pMessage);
}
void CXFA_FFTextEdit::OnProcessEvent(CFWL_Event* pEvent) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retain_layout(m_pLayoutItem.Get());
CXFA_FFField::OnProcessEvent(pEvent);
switch (pEvent->GetType()) {
case CFWL_Event::Type::TextWillChange:
OnTextWillChange(GetNormalWidget(),
static_cast<CFWL_EventTextWillChange*>(pEvent));
break;
case CFWL_Event::Type::TextFull:
OnTextFull(GetNormalWidget());
break;
default:
break;
}
m_pOldDelegate->OnProcessEvent(pEvent);
}
void CXFA_FFTextEdit::OnDrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) {
// Prevents destruction of the CXFA_ContentLayoutItem that owns |this|.
RetainPtr<CXFA_ContentLayoutItem> retainer(m_pLayoutItem.Get());
m_pOldDelegate->OnDrawWidget(pGraphics, matrix);
}
bool CXFA_FFTextEdit::CanUndo() {
return ToEdit(GetNormalWidget())->CanUndo();
}
bool CXFA_FFTextEdit::CanRedo() {
return ToEdit(GetNormalWidget())->CanRedo();
}
bool CXFA_FFTextEdit::Undo() {
return ToEdit(GetNormalWidget())->Undo();
}
bool CXFA_FFTextEdit::Redo() {
return ToEdit(GetNormalWidget())->Redo();
}
bool CXFA_FFTextEdit::CanCopy() {
return ToEdit(GetNormalWidget())->HasSelection();
}
bool CXFA_FFTextEdit::CanCut() {
if (ToEdit(GetNormalWidget())->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly)
return false;
return ToEdit(GetNormalWidget())->HasSelection();
}
bool CXFA_FFTextEdit::CanPaste() {
return !(ToEdit(GetNormalWidget())->GetStylesEx() &
FWL_STYLEEXT_EDT_ReadOnly);
}
bool CXFA_FFTextEdit::CanSelectAll() {
return ToEdit(GetNormalWidget())->GetTextLength() > 0;
}
Optional<WideString> CXFA_FFTextEdit::Copy() {
return ToEdit(GetNormalWidget())->Copy();
}
Optional<WideString> CXFA_FFTextEdit::Cut() {
return ToEdit(GetNormalWidget())->Cut();
}
bool CXFA_FFTextEdit::Paste(const WideString& wsPaste) {
return ToEdit(GetNormalWidget())->Paste(wsPaste);
}
void CXFA_FFTextEdit::SelectAll() {
ToEdit(GetNormalWidget())->SelectAll();
}
void CXFA_FFTextEdit::Delete() {
ToEdit(GetNormalWidget())->ClearText();
}
void CXFA_FFTextEdit::DeSelect() {
ToEdit(GetNormalWidget())->ClearSelection();
}
WideString CXFA_FFTextEdit::GetText() {
return ToEdit(GetNormalWidget())->GetText();
}
FormFieldType CXFA_FFTextEdit::GetFormFieldType() {
return FormFieldType::kXFA_TextField;
}