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// 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 "xfa/fxfa/cxfa_ffnotify.h"
#include <utility>
#include "third_party/base/check.h"
#include "xfa/fxfa/cxfa_ffapp.h"
#include "xfa/fxfa/cxfa_ffarc.h"
#include "xfa/fxfa/cxfa_ffbarcode.h"
#include "xfa/fxfa/cxfa_ffcheckbutton.h"
#include "xfa/fxfa/cxfa_ffcombobox.h"
#include "xfa/fxfa/cxfa_ffdatetimeedit.h"
#include "xfa/fxfa/cxfa_ffdoc.h"
#include "xfa/fxfa/cxfa_ffdocview.h"
#include "xfa/fxfa/cxfa_ffexclgroup.h"
#include "xfa/fxfa/cxfa_fffield.h"
#include "xfa/fxfa/cxfa_ffimage.h"
#include "xfa/fxfa/cxfa_ffimageedit.h"
#include "xfa/fxfa/cxfa_ffline.h"
#include "xfa/fxfa/cxfa_fflistbox.h"
#include "xfa/fxfa/cxfa_ffnumericedit.h"
#include "xfa/fxfa/cxfa_ffpageview.h"
#include "xfa/fxfa/cxfa_ffpasswordedit.h"
#include "xfa/fxfa/cxfa_ffpushbutton.h"
#include "xfa/fxfa/cxfa_ffrectangle.h"
#include "xfa/fxfa/cxfa_ffsignature.h"
#include "xfa/fxfa/cxfa_fftext.h"
#include "xfa/fxfa/cxfa_ffwidget.h"
#include "xfa/fxfa/cxfa_ffwidgethandler.h"
#include "xfa/fxfa/cxfa_fwladapterwidgetmgr.h"
#include "xfa/fxfa/cxfa_textlayout.h"
#include "xfa/fxfa/cxfa_textprovider.h"
#include "xfa/fxfa/layout/cxfa_layoutprocessor.h"
#include "xfa/fxfa/parser/cxfa_barcode.h"
#include "xfa/fxfa/parser/cxfa_binditems.h"
#include "xfa/fxfa/parser/cxfa_button.h"
#include "xfa/fxfa/parser/cxfa_checkbutton.h"
#include "xfa/fxfa/parser/cxfa_node.h"
#include "xfa/fxfa/parser/cxfa_passwordedit.h"
CXFA_FFNotify::CXFA_FFNotify(CXFA_FFDoc* pDoc) : m_pDoc(pDoc) {}
CXFA_FFNotify::~CXFA_FFNotify() = default;
void CXFA_FFNotify::Trace(cppgc::Visitor* visitor) const {
visitor->Trace(m_pDoc);
}
void CXFA_FFNotify::OnPageEvent(CXFA_ViewLayoutItem* pSender,
uint32_t dwEvent) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView(pSender->GetLayout());
if (pDocView)
pDocView->OnPageEvent(pSender, dwEvent);
}
void CXFA_FFNotify::OnWidgetListItemAdded(CXFA_Node* pSender,
const WideString& wsLabel,
int32_t iIndex) {
if (pSender->GetFFWidgetType() != XFA_FFWidgetType::kChoiceList)
return;
CXFA_FFWidget* pWidget = m_pDoc->GetDocView()->GetWidgetForNode(pSender);
for (; pWidget; pWidget = pWidget->GetNextFFWidget()) {
if (pWidget->IsLoaded())
ToDropDown(ToField(pWidget))->InsertItem(wsLabel, iIndex);
}
}
void CXFA_FFNotify::OnWidgetListItemRemoved(CXFA_Node* pSender,
int32_t iIndex) {
if (pSender->GetFFWidgetType() != XFA_FFWidgetType::kChoiceList)
return;
CXFA_FFWidget* pWidget = m_pDoc->GetDocView()->GetWidgetForNode(pSender);
for (; pWidget; pWidget = pWidget->GetNextFFWidget()) {
if (pWidget->IsLoaded())
ToDropDown(ToField(pWidget))->DeleteItem(iIndex);
}
}
CXFA_FFPageView* CXFA_FFNotify::OnCreateViewLayoutItem(CXFA_Node* pNode) {
if (pNode->GetElementType() != XFA_Element::PageArea)
return nullptr;
auto* pLayout = CXFA_LayoutProcessor::FromDocument(m_pDoc->GetXFADoc());
return cppgc::MakeGarbageCollected<CXFA_FFPageView>(
m_pDoc->GetHeap()->GetAllocationHandle(), m_pDoc->GetDocView(pLayout),
pNode);
}
CXFA_FFWidget* CXFA_FFNotify::OnCreateContentLayoutItem(CXFA_Node* pNode) {
DCHECK(pNode->GetElementType() != XFA_Element::ContentArea);
DCHECK(pNode->GetElementType() != XFA_Element::PageArea);
// We only need to create the widget for certain types of objects.
if (!pNode->HasCreatedUIWidget())
return nullptr;
CXFA_FFWidget* pWidget = nullptr;
switch (pNode->GetFFWidgetType()) {
case XFA_FFWidgetType::kBarcode: {
CXFA_Node* child = pNode->GetUIChildNode();
if (child->GetElementType() != XFA_Element::Barcode)
return nullptr;
pWidget = cppgc::MakeGarbageCollected<CXFA_FFBarcode>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode,
static_cast<CXFA_Barcode*>(child));
break;
}
case XFA_FFWidgetType::kButton: {
CXFA_Node* child = pNode->GetUIChildNode();
if (child->GetElementType() != XFA_Element::Button)
return nullptr;
pWidget = cppgc::MakeGarbageCollected<CXFA_FFPushButton>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode,
static_cast<CXFA_Button*>(child));
break;
}
case XFA_FFWidgetType::kCheckButton: {
CXFA_Node* child = pNode->GetUIChildNode();
if (child->GetElementType() != XFA_Element::CheckButton)
return nullptr;
pWidget = cppgc::MakeGarbageCollected<CXFA_FFCheckButton>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode,
static_cast<CXFA_CheckButton*>(child));
break;
}
case XFA_FFWidgetType::kChoiceList: {
if (pNode->IsListBox()) {
pWidget = cppgc::MakeGarbageCollected<CXFA_FFListBox>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
} else {
pWidget = cppgc::MakeGarbageCollected<CXFA_FFComboBox>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
}
break;
}
case XFA_FFWidgetType::kDateTimeEdit:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFDateTimeEdit>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kImageEdit:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFImageEdit>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kNumericEdit:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFNumericEdit>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kPasswordEdit: {
CXFA_Node* child = pNode->GetUIChildNode();
if (child->GetElementType() != XFA_Element::PasswordEdit)
return nullptr;
pWidget = cppgc::MakeGarbageCollected<CXFA_FFPasswordEdit>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode,
static_cast<CXFA_PasswordEdit*>(child));
break;
}
case XFA_FFWidgetType::kSignature:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFSignature>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kTextEdit:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFTextEdit>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kArc:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFArc>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kLine:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFLine>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kRectangle:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFRectangle>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kText:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFText>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kImage:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFImage>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kSubform:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFWidget>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kExclGroup:
pWidget = cppgc::MakeGarbageCollected<CXFA_FFExclGroup>(
m_pDoc->GetHeap()->GetAllocationHandle(), pNode);
break;
case XFA_FFWidgetType::kNone:
return nullptr;
}
auto* pLayout = CXFA_LayoutProcessor::FromDocument(m_pDoc->GetXFADoc());
pWidget->SetDocView(m_pDoc->GetDocView(pLayout));
return pWidget;
}
void CXFA_FFNotify::StartFieldDrawLayout(CXFA_Node* pItem,
float* pCalcWidth,
float* pCalcHeight) {
pItem->StartWidgetLayout(m_pDoc.Get(), pCalcWidth, pCalcHeight);
}
bool CXFA_FFNotify::RunScript(CXFA_Script* script, CXFA_Node* item) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return false;
CXFA_EventParam EventParam;
EventParam.m_eType = XFA_EVENT_Unknown;
XFA_EventError iRet;
bool bRet;
std::tie(iRet, bRet) = item->ExecuteBoolScript(pDocView, script, &EventParam);
return iRet == XFA_EventError::kSuccess && bRet;
}
XFA_EventError CXFA_FFNotify::ExecEventByDeepFirst(CXFA_Node* pFormNode,
XFA_EVENTTYPE eEventType,
bool bIsFormReady,
bool bRecursive) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return XFA_EventError::kNotExist;
return pDocView->ExecEventActivityByDeepFirst(pFormNode, eEventType,
bIsFormReady, bRecursive);
}
void CXFA_FFNotify::AddCalcValidate(CXFA_Node* pNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
pDocView->AddCalculateNode(pNode);
pDocView->AddValidateNode(pNode);
}
IXFA_AppProvider* CXFA_FFNotify::GetAppProvider() {
return m_pDoc->GetApp()->GetAppProvider();
}
CXFA_FFWidgetHandler* CXFA_FFNotify::GetWidgetHandler() {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
return pDocView ? pDocView->GetWidgetHandler() : nullptr;
}
void CXFA_FFNotify::OpenDropDownList(CXFA_Node* pNode) {
auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(m_pDoc->GetXFADoc());
CXFA_LayoutItem* pLayoutItem = pDocLayout->GetLayoutItem(pNode);
if (!pLayoutItem)
return;
CXFA_FFWidget* hWidget = CXFA_FFWidget::FromLayoutItem(pLayoutItem);
if (!hWidget)
return;
CXFA_FFDoc* hDoc = GetFFDoc();
hDoc->SetFocusWidget(hWidget);
if (hWidget->GetNode()->GetFFWidgetType() != XFA_FFWidgetType::kChoiceList)
return;
if (!hWidget->IsLoaded())
return;
CXFA_FFDropDown* pDropDown = ToDropDown(ToField(hWidget));
CXFA_FFComboBox* pComboBox = ToComboBox(pDropDown);
if (!pComboBox)
return;
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
pDocView->LockUpdate();
pComboBox->OpenDropDownList();
pDocView->UnlockUpdate();
pDocView->UpdateDocView();
}
void CXFA_FFNotify::ResetData(CXFA_Node* pNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
pDocView->ResetNode(pNode);
}
int32_t CXFA_FFNotify::GetLayoutStatus() {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
return pDocView ? pDocView->GetLayoutStatus() : 0;
}
void CXFA_FFNotify::RunNodeInitialize(CXFA_Node* pNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
pDocView->AddNewFormNode(pNode);
}
void CXFA_FFNotify::RunSubformIndexChange(CXFA_Node* pSubformNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
pDocView->AddIndexChangedSubform(pSubformNode);
}
CXFA_Node* CXFA_FFNotify::GetFocusWidgetNode() {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
return pDocView ? pDocView->GetFocusNode() : nullptr;
}
void CXFA_FFNotify::SetFocusWidgetNode(CXFA_Node* pNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
pDocView->SetFocusNode(pNode);
}
void CXFA_FFNotify::OnNodeReady(CXFA_Node* pNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
if (pNode->HasCreatedUIWidget()) {
pNode->SetWidgetReady();
return;
}
switch (pNode->GetElementType()) {
case XFA_Element::BindItems:
pDocView->AddBindItem(static_cast<CXFA_BindItems*>(pNode));
break;
case XFA_Element::Validate:
pNode->SetFlag(XFA_NodeFlag_NeedsInitApp);
break;
default:
break;
}
}
void CXFA_FFNotify::OnValueChanging(CXFA_Node* pSender, XFA_Attribute eAttr) {
if (eAttr != XFA_Attribute::Presence)
return;
if (pSender->GetPacketType() == XFA_PacketType::Datasets)
return;
if (!pSender->IsFormContainer())
return;
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
if (pDocView->GetLayoutStatus() < XFA_DOCVIEW_LAYOUTSTATUS_End)
return;
CXFA_FFWidget* pWidget = m_pDoc->GetDocView()->GetWidgetForNode(pSender);
for (; pWidget; pWidget = pWidget->GetNextFFWidget()) {
if (pWidget->IsLoaded())
pWidget->InvalidateRect();
}
}
void CXFA_FFNotify::OnValueChanged(CXFA_Node* pSender,
XFA_Attribute eAttr,
CXFA_Node* pParentNode,
CXFA_Node* pWidgetNode) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
if (pSender->GetPacketType() != XFA_PacketType::Form) {
if (eAttr == XFA_Attribute::Value)
pDocView->AddCalculateNodeNotify(pSender);
return;
}
XFA_Element eType = pParentNode->GetElementType();
bool bIsContainerNode = pParentNode->IsContainerNode();
bool bUpdateProperty = false;
pDocView->SetChangeMark();
switch (eType) {
case XFA_Element::Caption: {
CXFA_TextLayout* pCapOut = pWidgetNode->GetCaptionTextLayout();
if (!pCapOut)
return;
pCapOut->Unload();
break;
}
case XFA_Element::Ui:
case XFA_Element::Para:
bUpdateProperty = true;
break;
default:
break;
}
if (bIsContainerNode && eAttr == XFA_Attribute::Access)
bUpdateProperty = true;
if (eAttr == XFA_Attribute::Value) {
pDocView->AddCalculateNodeNotify(pSender);
if (eType == XFA_Element::Value || bIsContainerNode) {
if (bIsContainerNode) {
m_pDoc->GetDocView()->UpdateUIDisplay(pWidgetNode, nullptr);
pDocView->AddCalculateNode(pWidgetNode);
pDocView->AddValidateNode(pWidgetNode);
} else if (pWidgetNode->GetParent()->GetElementType() ==
XFA_Element::ExclGroup) {
m_pDoc->GetDocView()->UpdateUIDisplay(pWidgetNode, nullptr);
}
return;
}
}
CXFA_FFWidget* pWidget = m_pDoc->GetDocView()->GetWidgetForNode(pWidgetNode);
for (; pWidget; pWidget = pWidget->GetNextFFWidget()) {
if (!pWidget->IsLoaded())
continue;
if (bUpdateProperty)
pWidget->UpdateWidgetProperty();
pWidget->PerformLayout();
pWidget->InvalidateRect();
}
}
void CXFA_FFNotify::OnContainerChanged(CXFA_Node* pNode) {
m_pDoc->GetXFADoc()->GetLayoutProcessor()->AddChangedContainer(pNode);
}
void CXFA_FFNotify::OnChildAdded(CXFA_Node* pSender) {
if (!pSender->IsFormContainer())
return;
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
bool bLayoutReady =
!(pDocView->m_bInLayoutStatus) &&
(pDocView->GetLayoutStatus() == XFA_DOCVIEW_LAYOUTSTATUS_End);
if (bLayoutReady)
m_pDoc->SetChangeMark();
}
void CXFA_FFNotify::OnChildRemoved() {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView();
if (!pDocView)
return;
bool bLayoutReady =
!(pDocView->m_bInLayoutStatus) &&
(pDocView->GetLayoutStatus() == XFA_DOCVIEW_LAYOUTSTATUS_End);
if (bLayoutReady)
m_pDoc->SetChangeMark();
}
void CXFA_FFNotify::OnLayoutItemAdded(CXFA_LayoutProcessor* pLayout,
CXFA_LayoutItem* pSender,
int32_t iPageIdx,
uint32_t dwStatus) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView(pLayout);
if (!pDocView)
return;
CXFA_FFWidget* pWidget = CXFA_FFWidget::FromLayoutItem(pSender);
if (!pWidget)
return;
CXFA_FFPageView* pNewPageView = pDocView->GetPageView(iPageIdx);
uint32_t dwFilter = XFA_WidgetStatus_Visible | XFA_WidgetStatus_Viewable |
XFA_WidgetStatus_Printable;
pWidget->ModifyStatus(dwStatus, dwFilter);
CXFA_FFPageView* pPrePageView = pWidget->GetPageView();
if (pPrePageView != pNewPageView ||
(dwStatus & (XFA_WidgetStatus_Visible | XFA_WidgetStatus_Viewable)) ==
(XFA_WidgetStatus_Visible | XFA_WidgetStatus_Viewable)) {
pWidget->SetPageView(pNewPageView);
m_pDoc->WidgetPostAdd(pWidget);
}
if (pDocView->GetLayoutStatus() != XFA_DOCVIEW_LAYOUTSTATUS_End ||
!(dwStatus & XFA_WidgetStatus_Visible)) {
return;
}
if (pWidget->IsLoaded()) {
if (pWidget->GetWidgetRect() != pWidget->RecacheWidgetRect())
pWidget->PerformLayout();
} else {
pWidget->LoadWidget();
}
pWidget->InvalidateRect();
}
void CXFA_FFNotify::OnLayoutItemRemoving(CXFA_LayoutProcessor* pLayout,
CXFA_LayoutItem* pSender) {
CXFA_FFDocView* pDocView = m_pDoc->GetDocView(pLayout);
if (!pDocView)
return;
CXFA_FFWidget* pWidget = CXFA_FFWidget::FromLayoutItem(pSender);
if (!pWidget)
return;
pDocView->DeleteLayoutItem(pWidget);
m_pDoc->WidgetPreRemove(pWidget);
pWidget->InvalidateRect();
}