blob: 827742b3e3b4288c76a1275e6ceeb2e3512d5719 [file] [log] [blame]
// 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/pwl/cpwl_list_box.h"
#include <sstream>
#include <utility>
#include "core/fxge/cfx_renderdevice.h"
#include "fpdfsdk/pwl/cpwl_edit.h"
#include "fpdfsdk/pwl/cpwl_edit_ctrl.h"
#include "fpdfsdk/pwl/cpwl_edit_impl.h"
#include "fpdfsdk/pwl/cpwl_list_impl.h"
#include "fpdfsdk/pwl/cpwl_scroll_bar.h"
#include "fpdfsdk/pwl/cpwl_wnd.h"
#include "public/fpdf_fwlevent.h"
#include "third_party/base/ptr_util.h"
CPWL_List_Notify::CPWL_List_Notify(CPWL_ListBox* pList) : m_pList(pList) {
ASSERT(m_pList);
}
CPWL_List_Notify::~CPWL_List_Notify() {}
void CPWL_List_Notify::IOnSetScrollInfoY(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;
m_pList->SetScrollInfo(Info);
CPWL_ScrollBar* pScroll = m_pList->GetVScrollBar();
if (!pScroll)
return;
if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) ||
IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) {
if (pScroll->IsVisible()) {
pScroll->SetVisible(false);
m_pList->RePosChildWnd();
}
} else {
if (!pScroll->IsVisible()) {
pScroll->SetVisible(true);
m_pList->RePosChildWnd();
}
}
}
void CPWL_List_Notify::IOnSetScrollPosY(float fy) {
m_pList->SetScrollPosition(fy);
}
void CPWL_List_Notify::IOnInvalidateRect(CFX_FloatRect* pRect) {
m_pList->InvalidateRect(pRect);
}
CPWL_ListBox::CPWL_ListBox(const CreateParams& cp,
std::unique_ptr<PrivateData> pAttachedData)
: CPWL_Wnd(cp, std::move(pAttachedData)),
m_pList(pdfium::MakeUnique<CPWL_ListCtrl>()) {}
CPWL_ListBox::~CPWL_ListBox() = default;
void CPWL_ListBox::OnCreated() {
m_pList->SetFontMap(GetFontMap());
m_pListNotify = pdfium::MakeUnique<CPWL_List_Notify>(this);
m_pList->SetNotify(m_pListNotify.get());
SetHoverSel(HasFlag(PLBS_HOVERSEL));
m_pList->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL));
m_pList->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_pList->SetNotify(nullptr);
m_pListNotify.reset();
}
void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
CPWL_Wnd::DrawThisAppearance(pDevice, mtUser2Device);
CFX_FloatRect rcPlate = m_pList->GetPlateRect();
CFX_FloatRect rcList = GetListRect();
CFX_FloatRect rcClient = GetClientRect();
for (int32_t i = 0, sz = m_pList->GetCount(); i < sz; i++) {
CFX_FloatRect rcItem = m_pList->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_pList->GetItemEdit(i)) {
CFX_FloatRect rcContent = pEdit->GetContentRect();
if (rcContent.Width() > rcClient.Width())
rcItem.Intersect(rcList);
else
rcItem.Intersect(rcClient);
}
if (m_pList->IsItemSelected(i)) {
CFX_SystemHandler* pSysHandler = GetSystemHandler();
if (pSysHandler && pSysHandler->IsSelectionImplemented()) {
CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i),
GetTextColor().ToFXColor(255), rcList, ptOffset,
nullptr, pSysHandler, m_pFormFiller.Get());
pSysHandler->OutputSelectedRect(m_pFormFiller.Get(), rcItem);
} else {
pDevice->DrawFillRect(&mtUser2Device, rcItem,
ArgbEncode(255, 0, 51, 113));
CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i),
ArgbEncode(255, 255, 255, 255), rcList,
ptOffset, nullptr, pSysHandler,
m_pFormFiller.Get());
}
} else {
CFX_SystemHandler* pSysHandler = GetSystemHandler();
CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i),
GetTextColor().ToFXColor(255), rcList, ptOffset,
nullptr, pSysHandler, nullptr);
}
}
}
bool CPWL_ListBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
CPWL_Wnd::OnKeyDown(nChar, nFlag);
switch (nChar) {
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 (nChar) {
case FWL_VKEY_Up:
m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Down:
m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Home:
m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Left:
m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_End:
m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Right:
m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Delete:
break;
}
OnNotifySelectionChanged(true, nFlag);
return true;
}
bool CPWL_ListBox::OnChar(uint16_t nChar, uint32_t nFlag) {
CPWL_Wnd::OnChar(nChar, nFlag);
if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)))
return false;
OnNotifySelectionChanged(true, nFlag);
return true;
}
bool CPWL_ListBox::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) {
CPWL_Wnd::OnLButtonDown(point, nFlag);
if (ClientHitTest(point)) {
m_bMouseDown = true;
SetFocus();
SetCapture();
m_pList->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
}
return true;
}
bool CPWL_ListBox::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) {
CPWL_Wnd::OnLButtonUp(point, nFlag);
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(const CFX_PointF& point, uint32_t nFlag) {
CPWL_Wnd::OnMouseMove(point, nFlag);
if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point))
m_pList->Select(m_pList->GetItemIndex(point));
if (m_bMouseDown)
m_pList->OnMouseMove(point, IsSHIFTpressed(nFlag), IsCTRLpressed(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_pList->SetScrollPos(CFX_PointF(0, pos));
}
bool CPWL_ListBox::RePosChildWnd() {
if (!CPWL_Wnd::RePosChildWnd())
return false;
m_pList->SetPlateRect(GetListRect());
return true;
}
bool CPWL_ListBox::OnNotifySelectionChanged(bool bKeyDown, uint32_t nFlag) {
if (!m_pFillerNotify)
return false;
CPWL_Wnd::ObservedPtr thisObserved(this);
WideString swChange = GetText();
WideString strChangeEx;
int nSelStart = 0;
int nSelEnd = swChange.GetLength();
bool bRC;
bool bExit;
std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke(
GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, bKeyDown,
nFlag);
if (!thisObserved)
return false;
return bExit;
}
CFX_FloatRect CPWL_ListBox::GetFocusRect() const {
if (m_pList->IsMultipleSel()) {
CFX_FloatRect rcCaret = m_pList->GetItemRect(m_pList->GetCaret());
rcCaret.Intersect(GetClientRect());
return rcCaret;
}
return CPWL_Wnd::GetFocusRect();
}
void CPWL_ListBox::AddString(const WideString& str) {
m_pList->AddString(str);
}
WideString CPWL_ListBox::GetText() {
return m_pList->GetText();
}
void CPWL_ListBox::SetFontSize(float fFontSize) {
m_pList->SetFontSize(fFontSize);
}
float CPWL_ListBox::GetFontSize() const {
return m_pList->GetFontSize();
}
void CPWL_ListBox::Select(int32_t nItemIndex) {
m_pList->Select(nItemIndex);
}
void CPWL_ListBox::SetCaret(int32_t nItemIndex) {
m_pList->SetCaret(nItemIndex);
}
void CPWL_ListBox::SetTopVisibleIndex(int32_t nItemIndex) {
m_pList->SetTopItem(nItemIndex);
}
void CPWL_ListBox::ScrollToListItem(int32_t nItemIndex) {
m_pList->ScrollToListItem(nItemIndex);
}
void CPWL_ListBox::ResetContent() {
m_pList->Empty();
}
void CPWL_ListBox::Reset() {
m_pList->Cancel();
}
bool CPWL_ListBox::IsMultipleSel() const {
return m_pList->IsMultipleSel();
}
int32_t CPWL_ListBox::GetCaretIndex() const {
return m_pList->GetCaret();
}
int32_t CPWL_ListBox::GetCurSel() const {
return m_pList->GetSelect();
}
bool CPWL_ListBox::IsItemSelected(int32_t nItemIndex) const {
return m_pList->IsItemSelected(nItemIndex);
}
int32_t CPWL_ListBox::GetTopVisibleIndex() const {
m_pList->ScrollToListItem(m_pList->GetFirstSelected());
return m_pList->GetTopItem();
}
int32_t CPWL_ListBox::GetCount() const {
return m_pList->GetCount();
}
int32_t CPWL_ListBox::FindNext(int32_t nIndex, wchar_t nChar) const {
return m_pList->FindNext(nIndex, nChar);
}
CFX_FloatRect CPWL_ListBox::GetContentRect() const {
return m_pList->GetContentRect();
}
float CPWL_ListBox::GetFirstHeight() const {
return m_pList->GetFirstHeight();
}
CFX_FloatRect CPWL_ListBox::GetListRect() const {
float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth());
return GetWindowRect().GetDeflated(width, width);
}
bool CPWL_ListBox::OnMouseWheel(short zDelta,
const CFX_PointF& point,
uint32_t nFlag) {
if (zDelta < 0)
m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
else
m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
OnNotifySelectionChanged(false, nFlag);
return true;
}