| // 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/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" |
| #include "third_party/base/numerics/safe_conversions.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_Wnd> this_observed(this); |
| |
| WideString swChange = GetText(); |
| WideString strChangeEx; |
| int nSelStart = 0; |
| int nSelEnd = pdfium::base::checked_cast<int>(swChange.GetLength()); |
| bool bRC; |
| bool bExit; |
| std::tie(bRC, bExit) = GetFillerNotify()->OnBeforeKeyStroke( |
| GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, bKeyDown, |
| nFlag); |
| |
| if (!this_observed) { |
| return false; |
| } |
| |
| return bExit; |
| } |
| |
| 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; |
| } |