| // 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 "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() |
| : m_pList(new CPWL_ListCtrl), |
| m_bMouseDown(false), |
| m_bHoverSel(false), |
| m_pFillerNotify(nullptr) {} |
| |
| CPWL_ListBox::~CPWL_ListBox() {} |
| |
| 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; |
| } |