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// Copyright 2014 The PDFium Authors
// 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/pwl/cpwl_list_box.h"
#include <sstream>
#include <utility>
#include "core/fxcrt/numerics/safe_conversions.h"
#include "core/fxge/cfx_renderdevice.h"
#include "fpdfsdk/pwl/cpwl_edit.h"
#include "fpdfsdk/pwl/cpwl_edit_impl.h"
#include "fpdfsdk/pwl/cpwl_scroll_bar.h"
#include "fpdfsdk/pwl/ipwl_fillernotify.h"
#include "public/fpdf_fwlevent.h"
CPWL_ListBox::CPWL_ListBox(
const CreateParams& cp,
std::unique_ptr<IPWL_FillerNotify::PerWindowData> pAttachedData)
: CPWL_Wnd(cp, std::move(pAttachedData)),
m_pListCtrl(std::make_unique<CPWL_ListCtrl>()) {}
CPWL_ListBox::~CPWL_ListBox() = default;
void CPWL_ListBox::OnCreated() {
m_pListCtrl->SetFontMap(GetFontMap());
m_pListCtrl->SetNotify(this);
SetHoverSel(HasFlag(PLBS_HOVERSEL));
m_pListCtrl->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL));
m_pListCtrl->SetFontSize(GetCreationParams()->fFontSize);
m_bHoverSel = HasFlag(PLBS_HOVERSEL);
}
void CPWL_ListBox::OnDestroy() {
// Make sure the notifier is removed from the list as we are about to
// destroy the notifier and don't want to leave a dangling pointer.
m_pListCtrl->SetNotify(nullptr);
}
void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
CPWL_Wnd::DrawThisAppearance(pDevice, mtUser2Device);
CFX_FloatRect rcPlate = m_pListCtrl->GetPlateRect();
CFX_FloatRect rcList = GetListRect();
CFX_FloatRect rcClient = GetClientRect();
for (int32_t i = 0, sz = m_pListCtrl->GetCount(); i < sz; i++) {
CFX_FloatRect rcItem = m_pListCtrl->GetItemRect(i);
if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom)
continue;
CFX_PointF ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
if (CPWL_EditImpl* pEdit = m_pListCtrl->GetItemEdit(i)) {
CFX_FloatRect rcContent = pEdit->GetContentRect();
rcItem.Intersect(rcContent.Width() > rcClient.Width() ? rcList
: rcClient);
}
IPWL_FillerNotify* pSysHandler = GetFillerNotify();
if (m_pListCtrl->IsItemSelected(i)) {
if (pSysHandler->IsSelectionImplemented()) {
m_pListCtrl->GetItemEdit(i)->DrawEdit(
pDevice, mtUser2Device, GetTextColor().ToFXColor(255), rcList,
ptOffset, nullptr, pSysHandler, GetAttachedData());
pSysHandler->OutputSelectedRect(GetAttachedData(), rcItem);
} else {
pDevice->DrawFillRect(&mtUser2Device, rcItem,
ArgbEncode(255, 0, 51, 113));
m_pListCtrl->GetItemEdit(i)->DrawEdit(
pDevice, mtUser2Device, ArgbEncode(255, 255, 255, 255), rcList,
ptOffset, nullptr, pSysHandler, GetAttachedData());
}
} else {
m_pListCtrl->GetItemEdit(i)->DrawEdit(
pDevice, mtUser2Device, GetTextColor().ToFXColor(255), rcList,
ptOffset, nullptr, pSysHandler, nullptr);
}
}
}
bool CPWL_ListBox::OnKeyDown(FWL_VKEYCODE nKeyCode, Mask<FWL_EVENTFLAG> nFlag) {
CPWL_Wnd::OnKeyDown(nKeyCode, nFlag);
switch (nKeyCode) {
default:
return false;
case FWL_VKEY_Up:
case FWL_VKEY_Down:
case FWL_VKEY_Home:
case FWL_VKEY_Left:
case FWL_VKEY_End:
case FWL_VKEY_Right:
break;
}
switch (nKeyCode) {
case FWL_VKEY_Up:
m_pListCtrl->OnVK_UP(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
case FWL_VKEY_Down:
m_pListCtrl->OnVK_DOWN(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
case FWL_VKEY_Home:
m_pListCtrl->OnVK_HOME(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
case FWL_VKEY_Left:
m_pListCtrl->OnVK_LEFT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
case FWL_VKEY_End:
m_pListCtrl->OnVK_END(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
case FWL_VKEY_Right:
m_pListCtrl->OnVK_RIGHT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
break;
default:
break;
}
OnNotifySelectionChanged(true, nFlag);
return true;
}
bool CPWL_ListBox::OnChar(uint16_t nChar, Mask<FWL_EVENTFLAG> nFlag) {
CPWL_Wnd::OnChar(nChar, nFlag);
if (!m_pListCtrl->OnChar(nChar, IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag)))
return false;
OnNotifySelectionChanged(true, nFlag);
return true;
}
bool CPWL_ListBox::OnLButtonDown(Mask<FWL_EVENTFLAG> nFlag,
const CFX_PointF& point) {
CPWL_Wnd::OnLButtonDown(nFlag, point);
if (ClientHitTest(point)) {
m_bMouseDown = true;
SetFocus();
SetCapture();
m_pListCtrl->OnMouseDown(point, IsSHIFTKeyDown(nFlag),
IsCTRLKeyDown(nFlag));
}
return true;
}
bool CPWL_ListBox::OnLButtonUp(Mask<FWL_EVENTFLAG> nFlag,
const CFX_PointF& point) {
CPWL_Wnd::OnLButtonUp(nFlag, point);
if (m_bMouseDown) {
ReleaseCapture();
m_bMouseDown = false;
}
OnNotifySelectionChanged(false, nFlag);
return true;
}
void CPWL_ListBox::SetHoverSel(bool bHoverSel) {
m_bHoverSel = bHoverSel;
}
bool CPWL_ListBox::OnMouseMove(Mask<FWL_EVENTFLAG> nFlag,
const CFX_PointF& point) {
CPWL_Wnd::OnMouseMove(nFlag, point);
if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point))
m_pListCtrl->Select(m_pListCtrl->GetItemIndex(point));
if (m_bMouseDown)
m_pListCtrl->OnMouseMove(point, IsSHIFTKeyDown(nFlag),
IsCTRLKeyDown(nFlag));
return true;
}
void CPWL_ListBox::SetScrollInfo(const PWL_SCROLL_INFO& info) {
if (CPWL_Wnd* pChild = GetVScrollBar())
pChild->SetScrollInfo(info);
}
void CPWL_ListBox::SetScrollPosition(float pos) {
if (CPWL_Wnd* pChild = GetVScrollBar())
pChild->SetScrollPosition(pos);
}
void CPWL_ListBox::ScrollWindowVertically(float pos) {
m_pListCtrl->SetScrollPos(CFX_PointF(0, pos));
}
bool CPWL_ListBox::RepositionChildWnd() {
if (!CPWL_Wnd::RepositionChildWnd()) {
return false;
}
m_pListCtrl->SetPlateRect(GetListRect());
return true;
}
bool CPWL_ListBox::OnNotifySelectionChanged(bool bKeyDown,
Mask<FWL_EVENTFLAG> nFlag) {
ObservedPtr<CPWL_ListBox> this_observed(this);
WideString swChange = this_observed->GetText();
WideString strChangeEx;
int nSelStart = 0;
int nSelEnd = pdfium::checked_cast<int>(swChange.GetLength());
IPWL_FillerNotify::BeforeKeystrokeResult result =
this_observed->GetFillerNotify()->OnBeforeKeyStroke(
this_observed->GetAttachedData(), swChange, strChangeEx, nSelStart,
nSelEnd, bKeyDown, nFlag);
if (!this_observed) {
return false;
}
return result.exit;
}
CFX_FloatRect CPWL_ListBox::GetFocusRect() const {
if (m_pListCtrl->IsMultipleSel()) {
CFX_FloatRect rcCaret = m_pListCtrl->GetItemRect(m_pListCtrl->GetCaret());
rcCaret.Intersect(GetClientRect());
return rcCaret;
}
return CPWL_Wnd::GetFocusRect();
}
void CPWL_ListBox::AddString(const WideString& str) {
m_pListCtrl->AddString(str);
}
WideString CPWL_ListBox::GetText() {
return m_pListCtrl->GetText();
}
void CPWL_ListBox::SetFontSize(float fFontSize) {
m_pListCtrl->SetFontSize(fFontSize);
}
float CPWL_ListBox::GetFontSize() const {
return m_pListCtrl->GetFontSize();
}
void CPWL_ListBox::OnSetScrollInfoY(float fPlateMin,
float fPlateMax,
float fContentMin,
float fContentMax,
float fSmallStep,
float fBigStep) {
PWL_SCROLL_INFO Info;
Info.fPlateWidth = fPlateMax - fPlateMin;
Info.fContentMin = fContentMin;
Info.fContentMax = fContentMax;
Info.fSmallStep = fSmallStep;
Info.fBigStep = fBigStep;
SetScrollInfo(Info);
CPWL_ScrollBar* pScroll = GetVScrollBar();
if (!pScroll)
return;
if (FXSYS_IsFloatBigger(Info.fPlateWidth,
Info.fContentMax - Info.fContentMin) ||
FXSYS_IsFloatEqual(Info.fPlateWidth,
Info.fContentMax - Info.fContentMin)) {
if (pScroll->IsVisible() && pScroll->SetVisible(false)) {
RepositionChildWnd();
}
return;
}
if (!pScroll->IsVisible() && pScroll->SetVisible(true)) {
RepositionChildWnd();
}
}
void CPWL_ListBox::OnSetScrollPosY(float fy) {
SetScrollPosition(fy);
}
bool CPWL_ListBox::OnInvalidateRect(const CFX_FloatRect& rect) {
return InvalidateRect(&rect);
}
void CPWL_ListBox::Select(int32_t nItemIndex) {
m_pListCtrl->Select(nItemIndex);
}
void CPWL_ListBox::Deselect(int32_t nItemIndex) {
m_pListCtrl->Deselect(nItemIndex);
}
void CPWL_ListBox::SetCaret(int32_t nItemIndex) {
m_pListCtrl->SetCaret(nItemIndex);
}
void CPWL_ListBox::SetTopVisibleIndex(int32_t nItemIndex) {
m_pListCtrl->SetTopItem(nItemIndex);
}
void CPWL_ListBox::ScrollToListItem(int32_t nItemIndex) {
m_pListCtrl->ScrollToListItem(nItemIndex);
}
bool CPWL_ListBox::IsMultipleSel() const {
return m_pListCtrl->IsMultipleSel();
}
int32_t CPWL_ListBox::GetCaretIndex() const {
return m_pListCtrl->GetCaret();
}
int32_t CPWL_ListBox::GetCurSel() const {
return m_pListCtrl->GetSelect();
}
bool CPWL_ListBox::IsItemSelected(int32_t nItemIndex) const {
return m_pListCtrl->IsItemSelected(nItemIndex);
}
int32_t CPWL_ListBox::GetTopVisibleIndex() const {
m_pListCtrl->ScrollToListItem(m_pListCtrl->GetFirstSelected());
return m_pListCtrl->GetTopItem();
}
int32_t CPWL_ListBox::GetCount() const {
return m_pListCtrl->GetCount();
}
CFX_FloatRect CPWL_ListBox::GetContentRect() const {
return m_pListCtrl->GetContentRect();
}
float CPWL_ListBox::GetFirstHeight() const {
return m_pListCtrl->GetFirstHeight();
}
CFX_FloatRect CPWL_ListBox::GetListRect() const {
float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth());
return GetWindowRect().GetDeflated(width, width);
}
bool CPWL_ListBox::OnMouseWheel(Mask<FWL_EVENTFLAG> nFlag,
const CFX_PointF& point,
const CFX_Vector& delta) {
if (delta.y < 0)
m_pListCtrl->OnVK_DOWN(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
else
m_pListCtrl->OnVK_UP(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
OnNotifySelectionChanged(false, nFlag);
return true;
}