| // 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_edit.h" |
| |
| #include <algorithm> |
| #include <memory> |
| #include <sstream> |
| #include <utility> |
| |
| #include "core/fpdfapi/font/cpdf_font.h" |
| #include "core/fpdfdoc/cpvt_word.h" |
| #include "core/fpdfdoc/ipvt_fontmap.h" |
| #include "core/fxcrt/fx_safe_types.h" |
| #include "core/fxge/cfx_fillrenderoptions.h" |
| #include "core/fxge/cfx_graphstatedata.h" |
| #include "core/fxge/cfx_pathdata.h" |
| #include "core/fxge/cfx_renderdevice.h" |
| #include "core/fxge/fx_font.h" |
| #include "fpdfsdk/pwl/cpwl_caret.h" |
| #include "fpdfsdk/pwl/cpwl_edit_ctrl.h" |
| #include "fpdfsdk/pwl/cpwl_edit_impl.h" |
| #include "fpdfsdk/pwl/cpwl_scroll_bar.h" |
| #include "fpdfsdk/pwl/cpwl_wnd.h" |
| #include "fpdfsdk/pwl/ipwl_fillernotify.h" |
| #include "public/fpdf_fwlevent.h" |
| #include "third_party/base/check.h" |
| |
| CPWL_Edit::CPWL_Edit( |
| const CreateParams& cp, |
| std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) |
| : CPWL_EditCtrl(cp, std::move(pAttachedData)) {} |
| |
| CPWL_Edit::~CPWL_Edit() { |
| DCHECK(!m_bFocus); |
| } |
| |
| void CPWL_Edit::SetText(const WideString& csText) { |
| m_pEdit->SetText(csText); |
| } |
| |
| bool CPWL_Edit::RePosChildWnd() { |
| if (CPWL_ScrollBar* pVSB = GetVScrollBar()) { |
| CFX_FloatRect rcWindow = m_rcOldWindow; |
| CFX_FloatRect rcVScroll = |
| CFX_FloatRect(rcWindow.right, rcWindow.bottom, |
| rcWindow.right + PWL_SCROLLBAR_WIDTH, rcWindow.top); |
| |
| ObservedPtr<CPWL_Edit> thisObserved(this); |
| pVSB->Move(rcVScroll, true, false); |
| if (!thisObserved) |
| return false; |
| } |
| |
| if (m_pEditCaret && !HasFlag(PES_TEXTOVERFLOW)) { |
| CFX_FloatRect rect = GetClientRect(); |
| if (!rect.IsEmpty()) { |
| // +1 for caret beside border |
| rect.Inflate(1.0f, 1.0f); |
| rect.Normalize(); |
| } |
| m_pEditCaret->SetClipRect(rect); |
| } |
| |
| return CPWL_EditCtrl::RePosChildWnd(); |
| } |
| |
| CFX_FloatRect CPWL_Edit::GetClientRect() const { |
| float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth()); |
| CFX_FloatRect rcClient = GetWindowRect().GetDeflated(width, width); |
| if (CPWL_ScrollBar* pVSB = GetVScrollBar()) { |
| if (pVSB->IsVisible()) { |
| rcClient.right -= PWL_SCROLLBAR_WIDTH; |
| } |
| } |
| |
| return rcClient; |
| } |
| |
| void CPWL_Edit::SetAlignFormatVerticalCenter() { |
| m_pEdit->SetAlignmentV(static_cast<int32_t>(PEAV_CENTER), true); |
| } |
| |
| bool CPWL_Edit::CanSelectAll() const { |
| return GetSelectWordRange() != m_pEdit->GetWholeWordRange(); |
| } |
| |
| bool CPWL_Edit::CanCopy() const { |
| return !HasFlag(PES_PASSWORD) && !HasFlag(PES_NOREAD) && |
| m_pEdit->IsSelected(); |
| } |
| |
| bool CPWL_Edit::CanCut() const { |
| return CanCopy() && !IsReadOnly(); |
| } |
| void CPWL_Edit::CutText() { |
| if (!CanCut()) |
| return; |
| m_pEdit->ClearSelection(); |
| } |
| |
| void CPWL_Edit::OnCreated() { |
| CPWL_EditCtrl::OnCreated(); |
| |
| if (CPWL_ScrollBar* pScroll = GetVScrollBar()) { |
| pScroll->RemoveFlag(PWS_AUTOTRANSPARENT); |
| pScroll->SetTransparency(255); |
| } |
| |
| SetParamByFlag(); |
| |
| m_rcOldWindow = GetWindowRect(); |
| |
| m_pEdit->SetOperationNotify(this); |
| } |
| |
| void CPWL_Edit::SetParamByFlag() { |
| if (HasFlag(PES_RIGHT)) { |
| m_pEdit->SetAlignmentH(2, false); |
| } else if (HasFlag(PES_MIDDLE)) { |
| m_pEdit->SetAlignmentH(1, false); |
| } else { |
| m_pEdit->SetAlignmentH(0, false); |
| } |
| |
| if (HasFlag(PES_BOTTOM)) { |
| m_pEdit->SetAlignmentV(2, false); |
| } else if (HasFlag(PES_CENTER)) { |
| m_pEdit->SetAlignmentV(1, false); |
| } else { |
| m_pEdit->SetAlignmentV(0, false); |
| } |
| |
| if (HasFlag(PES_PASSWORD)) { |
| m_pEdit->SetPasswordChar('*', false); |
| } |
| |
| m_pEdit->SetMultiLine(HasFlag(PES_MULTILINE), false); |
| m_pEdit->SetAutoReturn(HasFlag(PES_AUTORETURN), false); |
| m_pEdit->SetAutoFontSize(HasFlag(PWS_AUTOFONTSIZE), false); |
| m_pEdit->SetAutoScroll(HasFlag(PES_AUTOSCROLL), false); |
| m_pEdit->EnableUndo(HasFlag(PES_UNDO)); |
| |
| if (HasFlag(PES_TEXTOVERFLOW)) { |
| SetClipRect(CFX_FloatRect()); |
| m_pEdit->SetTextOverflow(true, false); |
| } else { |
| if (m_pEditCaret) { |
| CFX_FloatRect rect = GetClientRect(); |
| if (!rect.IsEmpty()) { |
| // +1 for caret beside border |
| rect.Inflate(1.0f, 1.0f); |
| rect.Normalize(); |
| } |
| m_pEditCaret->SetClipRect(rect); |
| } |
| } |
| } |
| |
| void CPWL_Edit::DrawThisAppearance(CFX_RenderDevice* pDevice, |
| const CFX_Matrix& mtUser2Device) { |
| CPWL_Wnd::DrawThisAppearance(pDevice, mtUser2Device); |
| |
| const CFX_FloatRect rcClient = GetClientRect(); |
| const BorderStyle border_style = GetBorderStyle(); |
| const int32_t nCharArray = m_pEdit->GetCharArray(); |
| bool draw_border = nCharArray > 0 && (border_style == BorderStyle::kSolid || |
| border_style == BorderStyle::kDash); |
| if (draw_border) { |
| FX_SAFE_INT32 nCharArraySafe = nCharArray; |
| nCharArraySafe -= 1; |
| nCharArraySafe *= 2; |
| draw_border = nCharArraySafe.IsValid(); |
| } |
| |
| if (draw_border) { |
| CFX_GraphStateData gsd; |
| gsd.m_LineWidth = GetBorderWidth(); |
| if (border_style == BorderStyle::kDash) { |
| gsd.m_DashArray = {static_cast<float>(GetBorderDash().nDash), |
| static_cast<float>(GetBorderDash().nGap)}; |
| gsd.m_DashPhase = GetBorderDash().nPhase; |
| } |
| |
| const float width = (rcClient.right - rcClient.left) / nCharArray; |
| CFX_PathData path; |
| CFX_PointF bottom(0, rcClient.bottom); |
| CFX_PointF top(0, rcClient.top); |
| for (int32_t i = 0; i < nCharArray - 1; ++i) { |
| bottom.x = rcClient.left + width * (i + 1); |
| top.x = bottom.x; |
| path.AppendPoint(bottom, FXPT_TYPE::MoveTo); |
| path.AppendPoint(top, FXPT_TYPE::LineTo); |
| } |
| if (!path.GetPoints().empty()) { |
| pDevice->DrawPath(&path, &mtUser2Device, &gsd, 0, |
| GetBorderColor().ToFXColor(255), |
| CFX_FillRenderOptions::EvenOddOptions()); |
| } |
| } |
| |
| CFX_FloatRect rcClip; |
| CPVT_WordRange wrRange = m_pEdit->GetVisibleWordRange(); |
| CPVT_WordRange* pRange = nullptr; |
| if (!HasFlag(PES_TEXTOVERFLOW)) { |
| rcClip = GetClientRect(); |
| pRange = &wrRange; |
| } |
| |
| CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pEdit.get(), |
| GetTextColor().ToFXColor(GetTransparency()), rcClip, |
| CFX_PointF(), pRange, GetSystemHandler(), |
| m_pFormFiller.Get()); |
| } |
| |
| bool CPWL_Edit::OnLButtonDown(uint32_t nFlag, const CFX_PointF& point) { |
| CPWL_Wnd::OnLButtonDown(nFlag, point); |
| |
| if (HasFlag(PES_TEXTOVERFLOW) || ClientHitTest(point)) { |
| if (m_bMouseDown && !InvalidateRect(nullptr)) |
| return true; |
| |
| m_bMouseDown = true; |
| SetCapture(); |
| |
| m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); |
| } |
| |
| return true; |
| } |
| |
| bool CPWL_Edit::OnLButtonDblClk(uint32_t nFlag, const CFX_PointF& point) { |
| CPWL_Wnd::OnLButtonDblClk(nFlag, point); |
| |
| if (HasFlag(PES_TEXTOVERFLOW) || ClientHitTest(point)) { |
| m_pEdit->SelectAll(); |
| } |
| |
| return true; |
| } |
| |
| bool CPWL_Edit::OnRButtonUp(uint32_t nFlag, const CFX_PointF& point) { |
| if (m_bMouseDown) |
| return false; |
| |
| CPWL_Wnd::OnRButtonUp(nFlag, point); |
| |
| if (!HasFlag(PES_TEXTOVERFLOW) && !ClientHitTest(point)) |
| return true; |
| |
| SetFocus(); |
| |
| return false; |
| } |
| |
| void CPWL_Edit::OnSetFocus() { |
| ObservedPtr<CPWL_Edit> observed_ptr(this); |
| SetEditCaret(true); |
| if (!observed_ptr) |
| return; |
| |
| if (!IsReadOnly()) { |
| if (CPWL_Wnd::FocusHandlerIface* pFocusHandler = GetFocusHandler()) { |
| pFocusHandler->OnSetFocus(this); |
| if (!observed_ptr) |
| return; |
| } |
| } |
| m_bFocus = true; |
| } |
| |
| void CPWL_Edit::OnKillFocus() { |
| ObservedPtr<CPWL_Edit> observed_ptr(this); |
| CPWL_ScrollBar* pScroll = GetVScrollBar(); |
| if (pScroll && pScroll->IsVisible()) { |
| pScroll->SetVisible(false); |
| if (!observed_ptr) |
| return; |
| |
| if (!Move(m_rcOldWindow, true, true)) |
| return; |
| } |
| |
| m_pEdit->SelectNone(); |
| if (!observed_ptr) |
| return; |
| |
| if (!SetCaret(false, CFX_PointF(), CFX_PointF())) |
| return; |
| |
| SetCharSet(FX_CHARSET_ANSI); |
| m_bFocus = false; |
| } |
| |
| void CPWL_Edit::SetCharSpace(float fCharSpace) { |
| m_pEdit->SetCharSpace(fCharSpace); |
| } |
| |
| CPVT_WordRange CPWL_Edit::GetSelectWordRange() const { |
| if (!m_pEdit->IsSelected()) |
| return CPVT_WordRange(); |
| |
| int32_t nStart; |
| int32_t nEnd; |
| std::tie(nStart, nEnd) = m_pEdit->GetSelection(); |
| |
| CPVT_WordPlace wpStart = m_pEdit->WordIndexToWordPlace(nStart); |
| CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEnd); |
| return CPVT_WordRange(wpStart, wpEnd); |
| } |
| |
| CFX_PointF CPWL_Edit::GetWordRightBottomPoint(const CPVT_WordPlace& wpWord) { |
| CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator(); |
| CPVT_WordPlace wpOld = pIterator->GetAt(); |
| pIterator->SetAt(wpWord); |
| |
| CFX_PointF pt; |
| CPVT_Word word; |
| if (pIterator->GetWord(word)) |
| pt = CFX_PointF(word.ptWord.x + word.fWidth, word.ptWord.y + word.fDescent); |
| pIterator->SetAt(wpOld); |
| return pt; |
| } |
| |
| bool CPWL_Edit::IsTextFull() const { |
| return m_pEdit->IsTextFull(); |
| } |
| |
| float CPWL_Edit::GetCharArrayAutoFontSize(const CPDF_Font* pFont, |
| const CFX_FloatRect& rcPlate, |
| int32_t nCharArray) { |
| if (!pFont || pFont->IsStandardFont()) |
| return 0.0f; |
| |
| const FX_RECT& rcBBox = pFont->GetFontBBox(); |
| |
| CFX_FloatRect rcCell = rcPlate; |
| float xdiv = rcCell.Width() / nCharArray * 1000.0f / rcBBox.Width(); |
| float ydiv = -rcCell.Height() * 1000.0f / rcBBox.Height(); |
| |
| return xdiv < ydiv ? xdiv : ydiv; |
| } |
| |
| void CPWL_Edit::SetCharArray(int32_t nCharArray) { |
| if (!HasFlag(PES_CHARARRAY) || nCharArray <= 0) |
| return; |
| |
| m_pEdit->SetCharArray(nCharArray); |
| m_pEdit->SetTextOverflow(true, true); |
| |
| if (!HasFlag(PWS_AUTOFONTSIZE)) |
| return; |
| |
| IPVT_FontMap* pFontMap = GetFontMap(); |
| if (!pFontMap) |
| return; |
| |
| float fFontSize = GetCharArrayAutoFontSize(pFontMap->GetPDFFont(0).Get(), |
| GetClientRect(), nCharArray); |
| if (fFontSize <= 0.0f) |
| return; |
| |
| m_pEdit->SetAutoFontSize(false, true); |
| m_pEdit->SetFontSize(fFontSize); |
| } |
| |
| void CPWL_Edit::SetLimitChar(int32_t nLimitChar) { |
| m_pEdit->SetLimitChar(nLimitChar); |
| } |
| |
| CFX_FloatRect CPWL_Edit::GetFocusRect() const { |
| return CFX_FloatRect(); |
| } |
| |
| bool CPWL_Edit::IsVScrollBarVisible() const { |
| CPWL_ScrollBar* pScroll = GetVScrollBar(); |
| return pScroll && pScroll->IsVisible(); |
| } |
| |
| bool CPWL_Edit::OnKeyDown(uint16_t nChar, uint32_t nFlag) { |
| if (m_bMouseDown) |
| return true; |
| |
| if (nChar == FWL_VKEY_Delete) { |
| if (m_pFillerNotify) { |
| WideString strChange; |
| WideString strChangeEx; |
| |
| int nSelStart; |
| int nSelEnd; |
| std::tie(nSelStart, nSelEnd) = GetSelection(); |
| |
| if (nSelStart == nSelEnd) |
| nSelEnd = nSelStart + 1; |
| |
| ObservedPtr<CPWL_Wnd> thisObserved(this); |
| |
| bool bRC; |
| bool bExit; |
| std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke( |
| GetAttachedData(), strChange, strChangeEx, nSelStart, nSelEnd, true, |
| nFlag); |
| |
| if (!thisObserved) |
| return false; |
| |
| if (!bRC) |
| return false; |
| if (bExit) |
| return false; |
| } |
| } |
| |
| bool bRet = CPWL_EditCtrl::OnKeyDown(nChar, nFlag); |
| |
| // In case of implementation swallow the OnKeyDown event. |
| if (IsProceedtoOnChar(nChar, nFlag)) |
| return true; |
| |
| return bRet; |
| } |
| |
| // static |
| bool CPWL_Edit::IsProceedtoOnChar(uint16_t nKeyCode, uint32_t nFlag) { |
| bool bCtrl = IsCTRLpressed(nFlag); |
| bool bAlt = IsALTpressed(nFlag); |
| if (bCtrl && !bAlt) { |
| // hot keys for edit control. |
| switch (nKeyCode) { |
| case 'C': |
| case 'V': |
| case 'X': |
| case 'A': |
| case 'Z': |
| return true; |
| default: |
| break; |
| } |
| } |
| // control characters. |
| switch (nKeyCode) { |
| case FWL_VKEY_Escape: |
| case FWL_VKEY_Back: |
| case FWL_VKEY_Return: |
| case FWL_VKEY_Space: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool CPWL_Edit::OnChar(uint16_t nChar, uint32_t nFlag) { |
| if (m_bMouseDown) |
| return true; |
| |
| bool bRC = true; |
| bool bExit = false; |
| |
| if (!IsCTRLpressed(nFlag)) { |
| if (m_pFillerNotify) { |
| WideString swChange; |
| |
| int nSelStart; |
| int nSelEnd; |
| std::tie(nSelStart, nSelEnd) = GetSelection(); |
| |
| switch (nChar) { |
| case FWL_VKEY_Back: |
| if (nSelStart == nSelEnd) |
| nSelStart = nSelEnd - 1; |
| break; |
| case FWL_VKEY_Return: |
| break; |
| default: |
| swChange += nChar; |
| break; |
| } |
| |
| ObservedPtr<CPWL_Wnd> thisObserved(this); |
| |
| WideString strChangeEx; |
| std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke( |
| GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, true, |
| nFlag); |
| |
| if (!thisObserved) |
| return false; |
| } |
| } |
| |
| if (!bRC) |
| return true; |
| if (bExit) |
| return false; |
| |
| if (IPVT_FontMap* pFontMap = GetFontMap()) { |
| int32_t nOldCharSet = GetCharSet(); |
| int32_t nNewCharSet = |
| pFontMap->CharSetFromUnicode(nChar, FX_CHARSET_Default); |
| if (nOldCharSet != nNewCharSet) { |
| SetCharSet(nNewCharSet); |
| } |
| } |
| |
| return CPWL_EditCtrl::OnChar(nChar, nFlag); |
| } |
| |
| bool CPWL_Edit::OnMouseWheel(uint32_t nFlag, |
| const CFX_PointF& point, |
| const CFX_Vector& delta) { |
| if (!HasFlag(PES_MULTILINE)) |
| return false; |
| |
| CFX_PointF ptScroll = GetScrollPos(); |
| if (delta.y > 0) |
| ptScroll.y += GetFontSize(); |
| else |
| ptScroll.y -= GetFontSize(); |
| SetScrollPos(ptScroll); |
| return true; |
| } |
| |
| void CPWL_Edit::OnInsertReturn(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| void CPWL_Edit::OnBackSpace(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| void CPWL_Edit::OnDelete(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| void CPWL_Edit::OnClear(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| void CPWL_Edit::OnInsertWord(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| void CPWL_Edit::OnInsertText(const CPVT_WordPlace& place, |
| const CPVT_WordPlace& oldplace) { |
| if (HasFlag(PES_SPELLCHECK)) { |
| m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), |
| GetLatinWordsRange(place))); |
| } |
| } |
| |
| CPVT_WordRange CPWL_Edit::CombineWordRange(const CPVT_WordRange& wr1, |
| const CPVT_WordRange& wr2) { |
| return CPVT_WordRange(std::min(wr1.BeginPos, wr2.BeginPos), |
| std::max(wr1.EndPos, wr2.EndPos)); |
| } |
| |
| CPVT_WordRange CPWL_Edit::GetLatinWordsRange(const CFX_PointF& point) const { |
| return GetSameWordsRange(m_pEdit->SearchWordPlace(point), true, false); |
| } |
| |
| CPVT_WordRange CPWL_Edit::GetLatinWordsRange( |
| const CPVT_WordPlace& place) const { |
| return GetSameWordsRange(place, true, false); |
| } |
| |
| #define PWL_ISARABICWORD(word) \ |
| ((word >= 0x0600 && word <= 0x06FF) || (word >= 0xFB50 && word <= 0xFEFC)) |
| |
| CPVT_WordRange CPWL_Edit::GetSameWordsRange(const CPVT_WordPlace& place, |
| bool bLatin, |
| bool bArabic) const { |
| CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator(); |
| CPVT_Word wordinfo; |
| CPVT_WordPlace wpStart(place), wpEnd(place); |
| pIterator->SetAt(place); |
| |
| if (bLatin) { |
| while (pIterator->NextWord()) { |
| if (!pIterator->GetWord(wordinfo) || |
| !FX_EDIT_ISLATINWORD(wordinfo.Word)) { |
| break; |
| } |
| |
| wpEnd = pIterator->GetAt(); |
| } |
| } else if (bArabic) { |
| while (pIterator->NextWord()) { |
| if (!pIterator->GetWord(wordinfo) || !PWL_ISARABICWORD(wordinfo.Word)) |
| break; |
| |
| wpEnd = pIterator->GetAt(); |
| } |
| } |
| |
| pIterator->SetAt(place); |
| |
| if (bLatin) { |
| do { |
| if (!pIterator->GetWord(wordinfo) || |
| !FX_EDIT_ISLATINWORD(wordinfo.Word)) { |
| break; |
| } |
| |
| wpStart = pIterator->GetAt(); |
| } while (pIterator->PrevWord()); |
| } else if (bArabic) { |
| do { |
| if (!pIterator->GetWord(wordinfo) || !PWL_ISARABICWORD(wordinfo.Word)) |
| break; |
| |
| wpStart = pIterator->GetAt(); |
| } while (pIterator->PrevWord()); |
| } |
| |
| return CPVT_WordRange(wpStart, wpEnd); |
| } |